| /* ************************************************************************** */ |
| /* * For conditions of distribution and use, * */ |
| /* * see copyright notice in libmng.h * */ |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * project : libmng * */ |
| /* * file : libmng_pixels.c copyright (c) 2000-2005 G.Juyn * */ |
| /* * version : 1.0.10 * */ |
| /* * * */ |
| /* * purpose : Pixel-row management routines (implementation) * */ |
| /* * * */ |
| /* * author : G.Juyn * */ |
| /* * * */ |
| /* * comment : implementation of the pixel-row management routines * */ |
| /* * * */ |
| /* * the dual alpha-composing for RGBA/BGRA/etc output-canvas' * */ |
| /* * is based on the Note on Compositing chapter of the * */ |
| /* * DOH-3 draft, noted to me by Adam M. Costello * */ |
| /* * * */ |
| /* * changes : 0.5.1 - 05/08/2000 - G.Juyn * */ |
| /* * - changed strict-ANSI stuff * */ |
| /* * 0.5.1 - 05/11/2000 - G.Juyn * */ |
| /* * - added callback error-reporting support * */ |
| /* * 0.5.1 - 05/12/2000 - G.Juyn * */ |
| /* * - changed trace to macro for callback error-reporting * */ |
| /* * * */ |
| /* * 0.5.2 - 05/22/2000 - G.Juyn * */ |
| /* * - added JNG support * */ |
| /* * 0.5.2 - 05/30/2000 - G.Juyn * */ |
| /* * - fixed minor bugs 16-bit pixel-handling * */ |
| /* * - added delta-image row-processing routines * */ |
| /* * 0.5.2 - 06/02/2000 - G.Juyn * */ |
| /* * - fixed endian support (hopefully) * */ |
| /* * 0.5.2 - 06/03/2000 - G.Juyn * */ |
| /* * - fixed makeup for Linux gcc compile * */ |
| /* * 0.5.2 - 06/05/2000 - G.Juyn * */ |
| /* * - implemented app bkgd restore routines * */ |
| /* * - implemented RGBA8, ARGB8, BGRA8 & ABGR8 display routines * */ |
| /* * - added support for RGB8_A8 canvasstyle * */ |
| /* * 0.5.2 - 06/09/2000 - G.Juyn * */ |
| /* * - fixed alpha-handling for alpha canvasstyles * */ |
| /* * * */ |
| /* * 0.5.3 - 06/16/2000 - G.Juyn * */ |
| /* * - changed progressive-display processing * */ |
| /* * 0.5.3 - 06/17/2000 - G.Juyn * */ |
| /* * - changed to support delta-images * */ |
| /* * - optimized some store_xxx routines * */ |
| /* * 0.5.3 - 06/20/2000 - G.Juyn * */ |
| /* * - fixed nasty bug with embedded PNG after delta-image * */ |
| /* * 0.5.3 - 06/24/2000 - G.Juyn * */ |
| /* * - fixed problem with 16-bit GA format * */ |
| /* * 0.5.3 - 06/25/2000 - G.Juyn * */ |
| /* * - fixed problem with cheap transparency for 4-bit gray * */ |
| /* * - fixed display_xxxx routines for interlaced images * */ |
| /* * 0.5.3 - 06/28/2000 - G.Juyn * */ |
| /* * - fixed compiler-warning for non-initialized iB variable * */ |
| /* * * */ |
| /* * 0.9.1 - 07/05/2000 - G.Juyn * */ |
| /* * - fixed mandatory BACK color to be opaque * */ |
| /* * * */ |
| /* * 0.9.2 - 07/31/2000 - G.Juyn * */ |
| /* * - B110547 - fixed bug in interlace code * */ |
| /* * 0.9.2 - 08/05/2000 - G.Juyn * */ |
| /* * - changed file-prefixes * */ |
| /* * * */ |
| /* * 0.9.3 - 08/20/2000 - G.Juyn * */ |
| /* * - fixed app-supplied background restore * */ |
| /* * 0.9.3 - 08/26/2000 - G.Juyn * */ |
| /* * - added MAGN chunk * */ |
| /* * 0.9.3 - 09/07/2000 - G.Juyn * */ |
| /* * - added support for new filter_types * */ |
| /* * 0.9.3 - 09/30/2000 - G.Juyn * */ |
| /* * - fixed MAGN rounding errors (thanks Matthias!) * */ |
| /* * 0.9.3 - 10/10/2000 - G.Juyn * */ |
| /* * - fixed alpha-blending for RGBA canvasstyle * */ |
| /* * 0.9.3 - 10/11/2000 - G.Juyn * */ |
| /* * - fixed alpha-blending for other alpha-canvasstyles * */ |
| /* * 0.9.3 - 10/16/2000 - G.Juyn * */ |
| /* * - added optional support for bKGD for PNG images * */ |
| /* * - added support for JDAA * */ |
| /* * 0.9.3 - 10/17/2000 - G.Juyn * */ |
| /* * - fixed support for bKGD * */ |
| /* * 0.9.3 - 10/19/2000 - G.Juyn * */ |
| /* * - implemented delayed delta-processing * */ |
| /* * 0.9.3 - 10/28/2000 - G.Juyn * */ |
| /* * - fixed tRNS processing for gray-image < 8-bits * */ |
| /* * * */ |
| /* * 0.9.4 - 12/16/2000 - G.Juyn * */ |
| /* * - fixed mixup of data- & function-pointers (thanks Dimitri)* */ |
| /* * 0.9.4 - 1/18/2001 - G.Juyn * */ |
| /* * - removed "old" MAGN methods 3 & 4 * */ |
| /* * - added "new" MAGN methods 3, 4 & 5 * */ |
| /* * - removed test filter-methods 1 & 65 * */ |
| /* * * */ |
| /* * 1.0.1 - 04/21/2001 - G.Juyn (code by G.Kelly) * */ |
| /* * - added BGRA8 canvas with premultiplied alpha * */ |
| /* * 1.0.1 - 04/25/2001 - G.Juyn * */ |
| /* * - moved mng_clear_cms to libmng_cms * */ |
| /* * * */ |
| /* * 1.0.2 - 06/25/2001 - G.Juyn * */ |
| /* * - added option to turn off progressive refresh * */ |
| /* * * */ |
| /* * 1.0.4 - 11/04/2001 - G.Juyn * */ |
| /* * - fixed possible compile-problem in cleanup_rowproc * */ |
| /* * 1.0.4 - 06/22/2002 - G.Juyn * */ |
| /* * - B558212 - off by one error * */ |
| /* * - MNG subimage alpha composite wrong for rgba8 images * */ |
| /* * * */ |
| /* * 1.0.5 - 08/07/2002 - G.Juyn * */ |
| /* * - added test-option for PNG filter method 193 (=no filter) * */ |
| /* * 1.0.5 - 08/15/2002 - G.Juyn * */ |
| /* * - completed PROM support * */ |
| /* * - completed delta-image support * */ |
| /* * 1.0.5 - 08/16/2002 - G.Juyn * */ |
| /* * - completed MAGN support (16-bit functions) * */ |
| /* * 1.0.5 - 08/19/2002 - G.Juyn * */ |
| /* * - B597134 - libmng pollutes the linker namespace * */ |
| /* * 1.0.5 - 09/19/2002 - G.Juyn * */ |
| /* * - optimized restore-background for bKGD cases * */ |
| /* * 1.0.5 - 09/20/2002 - G.Juyn * */ |
| /* * - finished support for BACK image & tiling * */ |
| /* * 1.0.5 - 09/22/2002 - G.Juyn * */ |
| /* * - added bgrx8 canvas (filler byte) * */ |
| /* * 1.0.5 - 09/23/2002 - G.Juyn * */ |
| /* * - added compose over/under routines for PAST processing * */ |
| /* * - added flip & tile routines for PAST processing * */ |
| /* * * */ |
| /* * 1.0.6 - 03/09/2003 - G.Juyn * */ |
| /* * - hiding 12-bit JPEG stuff * */ |
| /* * 1.0.6 - 05/11/2003 - Glenn RP * */ |
| /* * - added size-optimization COMPOSE routine usage * */ |
| /* * 1.0.6 - 05/11/2003 - G. Juyn * */ |
| /* * - added conditionals around canvas update routines * */ |
| /* * 1.0.6 - 05/25/2003 - Glenn RP * */ |
| /* * - added size-optimization DIV255B8 routine usage * */ |
| /* * 1.0.6 - 06/09/2003 - G. R-P * */ |
| /* * - added conditionals around 8-bit magn routines * */ |
| /* * 1.0.6 - 07/07/2003 - G. R-P * */ |
| /* * - removed conditionals around 8-bit magn routines * */ |
| /* * - added MNG_NO_16BIT_SUPPORT and MNG_NO_DELTA_PNG * */ |
| /* * conditionals * */ |
| /* * - reversed many loops to use decrementing counter * */ |
| /* * - combined init functions * */ |
| /* * - converted some switches to array references * */ |
| /* * 1.0.6 - 07/29/2003 - G.Juyn * */ |
| /* * - fixed duplicate for-loop * */ |
| /* * 1.0.6 - 07/29/2003 - G.R-P * */ |
| /* * - added SKIPCHUNK conditionals around PAST chunk support * */ |
| /* * - fixed "FOOTPRINT_COMPOSEIV" typo (now "FOOTPRINT_DIV") * */ |
| /* * 1.0.6 - 08/17/2003 - G.R-P * */ |
| /* * - added more conditionals around "promote" functions * */ |
| /* * * */ |
| /* * 1.0.7 - 11/27/2003 - R.A * */ |
| /* * - added CANVAS_RGB565 and CANVAS_BGR565 * */ |
| /* * 1.0.7 - 12/06/2003 - R.A * */ |
| /* * - added CANVAS_RGBA565 and CANVAS_BGRA565 * */ |
| /* * 1.0.7 - 01/25/2004 - J.S * */ |
| /* * - added premultiplied alpha canvas' for RGBA, ARGB, ABGR * */ |
| /* * 1.0.7 - 03/08/2004 - G.R-P * */ |
| /* * - added more conditionals around 16-bit-supporting code * */ |
| /* * 1.0.7 - 03/09/2004 - G.Juyn * */ |
| /* * - fixed bug in promote_g8_g8 with 16bit support off * */ |
| /* * 1.0.7 - 03/09/2004 - G.R-P * */ |
| /* * - more optimizations with 16bit support off * */ |
| /* * 1.0.7 - 03/10/2004 - G.Juyn * */ |
| /* * - fixed some warnings for 16bit optimizations * */ |
| /* * 1.0.7 - 03/21/2004 - G.Juyn * */ |
| /* * - fixed some 64-bit platform compiler warnings * */ |
| /* * * */ |
| /* * 1.0.8 - 06/20/2004 - G.Juyn * */ |
| /* * - some speed optimizations (thanks to John Stiles) * */ |
| /* * 1.0.8 - 08/01/2004 - G.Juyn * */ |
| /* * - added support for 3+byte pixelsize for JPEG's * */ |
| /* * * */ |
| /* * 1.0.9 - 10/10/2004 - G.R-P. * */ |
| /* * - added MNG_NO_1_2_4BIT_SUPPORT * */ |
| /* * 1.0.9 - 10/14/2004 - G.Juyn * */ |
| /* * - added bgr565_a8 canvas-style (thanks to J. Elvander) * */ |
| /* * 1.0.9 - 12/05/2004 - G.Juyn * */ |
| /* * - added LITTLEENDIAN/BIGENDIAN fixtures (thanks J.Stiles) * */ |
| /* * - fixed MNG_NO_1_2_4BIT_SUPPORT for TBBN1G04.PNG * */ |
| /* * 1.0.9 - 12/31/2004 - G.R-P. * */ |
| /* * - fixed warnings about C++ style (//) comments * */ |
| /* * * */ |
| /* * 1.0.10 - 07/06/2005 - G.R-P. * */ |
| /* * - added MORE MNG_NO_1_2_4BIT_SUPPORT * */ |
| /* * 1.0.10 - 10/06/2005 - G.R-P. * */ |
| /* * - alloc more memory for MNG_NO_1_2_4BIT_SUPPORT * */ |
| /* * 1.0.10 - 12/07/2005 - G.R-P. * */ |
| /* * - optimized footprint of 16bit support * */ |
| /* * 1.0.10 - 03/07/2006 - (thanks to W. Manthey) * */ |
| /* * - added CANVAS_RGB555 and CANVAS_BGR555 * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #include "libmng.h" |
| #include "libmng_data.h" |
| #include "libmng_error.h" |
| #include "libmng_trace.h" |
| #ifdef __BORLANDC__ |
| #pragma hdrstop |
| #endif |
| #include "libmng_objects.h" |
| #include "libmng_object_prc.h" |
| #include "libmng_memory.h" |
| #include "libmng_cms.h" |
| #include "libmng_filter.h" |
| #include "libmng_pixels.h" |
| |
| #if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) |
| #pragma option -A /* force ANSI-C */ |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_INCLUDE_DISPLAY_PROCS |
| |
| /* TODO: magnification & canvas-positioning/-clipping */ |
| |
| /* TODO: major optimization of pixel-loops by using assembler (?) */ |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Interlace tables * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| MNG_LOCAL mng_uint32 const interlace_row [7] = { 0, 0, 4, 0, 2, 0, 1 }; |
| MNG_LOCAL mng_uint32 const interlace_rowskip [7] = { 8, 8, 8, 4, 4, 2, 2 }; |
| MNG_LOCAL mng_uint32 const interlace_col [7] = { 0, 4, 0, 2, 0, 1, 0 }; |
| MNG_LOCAL mng_uint32 const interlace_colskip [7] = { 8, 8, 4, 4, 2, 2, 1 }; |
| MNG_LOCAL mng_uint32 const interlace_roundoff [7] = { 7, 7, 3, 3, 1, 1, 0 }; |
| MNG_LOCAL mng_uint32 const interlace_divider [7] = { 3, 3, 2, 2, 1, 1, 0 }; |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Alpha composing macros * */ |
| /* * the code below is slightly modified from the libpng package * */ |
| /* * the original was last optimized by Greg Roelofs & Mark Adler * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #define MNG_COMPOSE8(RET,FG,ALPHA,BG) { \ |
| mng_uint16 iH = (mng_uint16)((mng_uint16)(FG) * (mng_uint16)(ALPHA) \ |
| + (mng_uint16)(BG)*(mng_uint16)(255 - \ |
| (mng_uint16)(ALPHA)) + (mng_uint16)128); \ |
| (RET) = (mng_uint8)((iH + (iH >> 8)) >> 8); } |
| |
| #define MNG_COMPOSE16(RET,FG,ALPHA,BG) { \ |
| mng_uint32 iH = (mng_uint32)((mng_uint32)(FG) * (mng_uint32)(ALPHA) \ |
| + (mng_uint32)(BG)*(mng_uint32)(65535L - \ |
| (mng_uint32)(ALPHA)) + (mng_uint32)32768L); \ |
| (RET) = (mng_uint16)((iH + (iH >> 16)) >> 16); } |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Alpha blending macros * */ |
| /* * this code is based on Adam Costello's "Note on Compositing" from the * */ |
| /* * mng-list which gives the following formula: * */ |
| /* * * */ |
| /* * top pixel = (Rt, Gt, Bt, At) * */ |
| /* * bottom pixel = (Rb, Gb, Bb, Ab) * */ |
| /* * composite pixel = (Rc, Gc, Bc, Ac) * */ |
| /* * * */ |
| /* * all values in the range 0..1 * */ |
| /* * * */ |
| /* * Ac = 1 - (1 - At)(1 - Ab) * */ |
| /* * s = At / Ac * */ |
| /* * t = (1 - At) Ab / Ac * */ |
| /* * Rc = s Rt + t Rb * */ |
| /* * Gc = s Gt + t Gb * */ |
| /* * Bc = s Bt + t Bb * */ |
| /* * * */ |
| /* * (I just hope I coded it correctly in integer arithmetic...) * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #define MNG_BLEND8(RT, GT, BT, AT, RB, GB, BB, AB, RC, GC, BC, AC) { \ |
| mng_uint32 S, T; \ |
| (AC) = (mng_uint8)((mng_uint32)255 - \ |
| ((((mng_uint32)255 - (mng_uint32)(AT)) * \ |
| ((mng_uint32)255 - (mng_uint32)(AB)) ) >> 8)); \ |
| S = (mng_uint32)(((mng_uint32)(AT) << 8) / \ |
| (mng_uint32)(AC)); \ |
| T = (mng_uint32)(((mng_uint32)255 - (mng_uint32)(AT)) * \ |
| (mng_uint32)(AB) / (mng_uint32)(AC)); \ |
| (RC) = (mng_uint8)((S * (mng_uint32)(RT) + \ |
| T * (mng_uint32)(RB) + (mng_uint32)127) >> 8); \ |
| (GC) = (mng_uint8)((S * (mng_uint32)(GT) + \ |
| T * (mng_uint32)(GB) + (mng_uint32)127) >> 8); \ |
| (BC) = (mng_uint8)((S * (mng_uint32)(BT) + \ |
| T * (mng_uint32)(BB) + (mng_uint32)127) >> 8); } |
| |
| #define MNG_BLEND16(RT, GT, BT, AT, RB, GB, BB, AB, RC, GC, BC, AC) { \ |
| mng_uint32 S, T; \ |
| (AC) = (mng_uint16)((mng_uint32)65535 - \ |
| ((((mng_uint32)65535 - (mng_uint32)(AT)) * \ |
| ((mng_uint32)65535 - (mng_uint32)(AB)) ) >> 16)); \ |
| S = (mng_uint32)(((mng_uint32)(AT) << 16) / \ |
| (mng_uint32)(AC)); \ |
| T = (mng_uint32)(((mng_uint32)65535 - (mng_uint32)(AT)) * \ |
| (mng_uint32)(AB) / (mng_uint32)(AC)); \ |
| (RC) = (mng_uint16)((S * (mng_uint32)(RT) + \ |
| T * (mng_uint32)(RB) + (mng_uint32)32767) >> 16); \ |
| (GC) = (mng_uint16)((S * (mng_uint32)(GT) + \ |
| T * (mng_uint32)(GB) + (mng_uint32)32767) >> 16); \ |
| (BC) = (mng_uint16)((S * (mng_uint32)(BT) + \ |
| T * (mng_uint32)(BB) + (mng_uint32)32767) >> 16); } |
| |
| /* ************************************************************************** */ |
| |
| /* note a good optimizing compiler will optimize this */ |
| #define DIV255B8(x) (mng_uint8)(((x) + 127) / 255) |
| #define DIV255B16(x) (mng_uint16)(((x) + 32767) / 65535) |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Progressive display check - checks to see if progressive display is * */ |
| /* * in order & indicates so * */ |
| /* * * */ |
| /* * The routine is called after a call to one of the display_xxx routines * */ |
| /* * if appropriate * */ |
| /* * * */ |
| /* * The refresh is warrented in the read_chunk routine (mng_read.c) * */ |
| /* * and only during read&display processing, since there's not much point * */ |
| /* * doing it from memory! * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_display_progressive_check (mng_datap pData) |
| { |
| if ((pData->bDoProgressive) && /* need progressive display? */ |
| ((pData->eImagetype != mng_it_mng) || (pData->iDataheight > 300)) && |
| (pData->iDestb - pData->iDestt > 50) && (!pData->pCurraniobj)) |
| { |
| mng_int32 iC = pData->iRow + pData->iDestt - pData->iSourcet; |
| |
| if (iC % 20 == 0) /* every 20th line */ |
| pData->bNeedrefresh = MNG_TRUE; |
| |
| } |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Display routines - convert rowdata (which is already color-corrected) * */ |
| /* * to the output canvas, respecting the opacity information * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| MNG_LOCAL void check_update_region (mng_datap pData) |
| { /* determine actual canvas row */ |
| mng_int32 iRow = pData->iRow + pData->iDestt - pData->iSourcet; |
| /* check for change in update-region */ |
| if ((pData->iDestl < (mng_int32)pData->iUpdateleft) || (pData->iUpdateright == 0)) |
| pData->iUpdateleft = pData->iDestl; |
| |
| if (pData->iDestr > (mng_int32)pData->iUpdateright) |
| pData->iUpdateright = pData->iDestr; |
| |
| if ((iRow < (mng_int32)pData->iUpdatetop) || (pData->iUpdatebottom == 0)) |
| pData->iUpdatetop = iRow; |
| |
| if (iRow+1 > (mng_int32)pData->iUpdatebottom) |
| pData->iUpdatebottom = iRow+1; |
| |
| return; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGB8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_rgb8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)(*pScanline ); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*(pScanline+2)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iFGr16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| } |
| else |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (*pScanline, *pDataline, iA8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iA8, *(pScanline+2)); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_rgb8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGg16; |
| mng_uint16 iBGg16; |
| mng_uint8 iA8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+iBps); |
| *(pScanline+2) = *(pDataline+2*iBps); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4*iBps; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| } |
| else |
| { /* get the proper values */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| iFGg16 = mng_get_uint16 (pDataline+i+i); |
| /* scale background up */ |
| iBGg16 = (mng_uint16)(*(pScanline+i)); |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| /* and return the composed values */ |
| *(pScanline+i) = (mng_uint8)(iFGg16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| } |
| else |
| { /* do alpha composing */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iA8, *(pScanline+i)); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_rgb8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| } |
| else |
| { /* do alpha composing */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iA8, *(pScanline+i)); |
| } |
| #else |
| MNG_COMPOSE8 (*pScanline, *pDataline, iA8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iA8, *(pScanline+2)); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_RGB8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGBA8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_rgba8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| *(pScanline+3) = *(pDataline+6); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *(pDataline+3); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*(pScanline+3)); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| *(pScanline+3) = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)(*pScanline ); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*(pScanline+2)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iFGr16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*pScanline ); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*(pScanline+2)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCr16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCb16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+3); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)); |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCr8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCb8; |
| *(pScanline+3) = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_rgba8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGg16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+iBps); |
| *(pScanline+2) = *(pDataline+2*iBps); |
| *(pScanline+3) = *(pDataline+3*iBps); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*(pScanline+3)); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| *(pScanline+3) = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| iFGg16 = mng_get_uint16 (pDataline+i+i); |
| /* scale background up */ |
| iBGg16 = (mng_uint16)(*(pScanline+i)); |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| /* and return the composed values */ |
| *(pScanline+i) = (mng_uint8)(iFGg16 >> 8); |
| /* alpha remains fully opaque !!! */ |
| } |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*pScanline ); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*(pScanline+2)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCr16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCb16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+3); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iFGa8, *(pScanline+i)); |
| } |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCr8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCb8; |
| *(pScanline+3) = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_rgba8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *(pDataline+3); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+3); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iFGa8, *(pScanline+i)); |
| } |
| #else |
| MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)); |
| #endif |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCr8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCb8; |
| *(pScanline+3) = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_RGBA8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGBA8_PM |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_rgba8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| if ((s = pDataline[6]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[4]; |
| pScanline[3] = 255; |
| } |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[4-i-i]); |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[2]); |
| pScanline[2] = DIV255B8(s * pDataline[4]); |
| #endif |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; |
| #else |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = 255; |
| #endif |
| } |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[2-i]); |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| if ((s = pDataline[6]) != 0) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if (s == 255) |
| { /* plain copy it */ |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[4]; |
| pScanline[3] = 255; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[4-i-i] + t * |
| pScanline[2-i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[4] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; |
| #else |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = 255; |
| #endif |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[2-i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_rgba8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| if ((s = pDataline[6]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[4]; |
| pScanline[3] = 255; |
| } |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[4-i-i]); |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[2]); |
| pScanline[2] = DIV255B8(s * pDataline[4]); |
| #endif |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; |
| #else |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = 255; |
| #endif |
| } |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[2-i]); |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| if ((s = pDataline[6]) != 0) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if (s == 255) |
| { /* plain copy it */ |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[4]; |
| pScanline[3] = 255; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[4-i-i] + t * |
| pScanline[2-i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[4] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; |
| #else |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = 255; |
| #endif |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[2-i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_rgba8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; |
| #else |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = 255; |
| #endif |
| } |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[2-i]); |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| *(mng_uint32*)pScanline = (*(mng_uint32*)pDataline) | 0x000000FF; |
| #else |
| pScanline[0] = pDataline[0]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = 255; |
| #endif |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[2-i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[2-i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[0] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_RGBA8_PM */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_ARGB8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_argb8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_START); |
| #endif |
| |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+6); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *(pDataline+4); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *(pDataline+2); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*pScanline); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *(pDataline+6); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *(pDataline+4); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+1)); |
| iBGg16 = (mng_uint16)(*(pScanline+2)); |
| iBGb16 = (mng_uint16)(*(pScanline+3)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| /* alpha remains fully opaque !!! */ |
| *(pScanline+1) = (mng_uint8)(iFGr16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iFGg16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iFGb16 >> 8); |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+1)); |
| iBGg16 = (mng_uint16)(*(pScanline+2)); |
| iBGb16 = (mng_uint16)(*(pScanline+3)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCa16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCr16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iCb16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pScanline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *(pDataline+2); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do simple alpha composing */ |
| /* alpha itself remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+1), *(pScanline+2), *(pScanline+3), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCa8; |
| *(pScanline+1) = iCr8; |
| *(pScanline+2) = iCg8; |
| *(pScanline+3) = iCb8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_argb8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGg16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+3*iBps); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+iBps); |
| *(pScanline+3) = *(pDataline+2*iBps); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*pScanline); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *(pDataline+6); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *(pDataline+4); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| iFGg16 = mng_get_uint16 (pDataline+i+i); |
| /* scale background up */ |
| iBGg16 = (mng_uint16)(*(pScanline+i+1)); |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| /* and return the composed values */ |
| /* alpha remains fully opaque !!! */ |
| *(pScanline+i+1) = (mng_uint8)(iFGg16 >> 8); |
| } |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+1)); |
| iBGg16 = (mng_uint16)(*(pScanline+2)); |
| iBGb16 = (mng_uint16)(*(pScanline+3)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCa16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCr16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iCb16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pScanline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *(pDataline+2); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do simple alpha composing */ |
| /* alpha itself remains fully opaque !!! */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i+1), *(pDataline+i), iFGa8, *(pScanline+i+1)); |
| } |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+1), *(pScanline+2), *(pScanline+3), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCa8; |
| *(pScanline+1) = iCr8; |
| *(pScanline+2) = iCg8; |
| *(pScanline+3) = iCb8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_argb8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_START); |
| #endif |
| |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *(pDataline+2); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pScanline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *pDataline; |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *(pDataline+2); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do simple alpha composing */ |
| /* alpha itself remains fully opaque !!! */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i+1), *(pDataline+i), iFGa8, *(pScanline+i+1)); |
| } |
| #else |
| MNG_COMPOSE8 (*(pScanline+1), *pDataline, iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+1), iFGa8, *(pScanline+2)); |
| MNG_COMPOSE8 (*(pScanline+3), *(pDataline+2), iFGa8, *(pScanline+3)); |
| #endif |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+1), *(pScanline+2), *(pScanline+3), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCa8; |
| *(pScanline+1) = iCr8; |
| *(pScanline+2) = iCg8; |
| *(pScanline+3) = iCb8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_ARGB8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_ARGB8_PM |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_argb8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| if ((s = pDataline[6]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = pDataline[4]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[4-i-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0]); |
| pScanline[2] = DIV255B8(s * pDataline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[4]); |
| #endif |
| } |
| } |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[2]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[2-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0]); |
| pScanline[2] = DIV255B8(s * pDataline[1]); |
| pScanline[3] = DIV255B8(s * pDataline[2]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| if ((s = pDataline[6]) != 0) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if (s == 255) |
| { /* plain copy it */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = pDataline[4]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[4-i-i] + t * |
| pScanline[3-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[4] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[2]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[3-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[2] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_argb8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| if ((s = pDataline[6]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = pDataline[4]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[4-i-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0]); |
| pScanline[2] = DIV255B8(s * pDataline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[4]); |
| #endif |
| } |
| } |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[2]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[2-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0]); |
| pScanline[2] = DIV255B8(s * pDataline[1]); |
| pScanline[3] = DIV255B8(s * pDataline[2]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| if ((s = pDataline[6]) != 0) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if (s == 255) |
| { /* plain copy it */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = pDataline[4]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[4-i-i] + t * |
| pScanline[3-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[4] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[2]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[3-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[2] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_argb8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[2]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[2-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0]); |
| pScanline[2] = DIV255B8(s * pDataline[1]); |
| pScanline[3] = DIV255B8(s * pDataline[2]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[0]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[2]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[3-i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[3-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[0] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[2] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ARGB8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_ARGB8_PM */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGB8_A8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_rgb8_a8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pAlphaline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination rows */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination rows starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pAlphaline = pAlphaline + pData->iCol + pData->iDestl; |
| |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| *pAlphaline = *(pDataline+6); |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *pAlphaline = *(pDataline+3); |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*pAlphaline); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| *pAlphaline = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)(*pScanline ); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*(pScanline+2)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iFGr16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iFGb16 >> 8); |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*pScanline ); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*(pScanline+2)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCr16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCb16 >> 8); |
| *pAlphaline = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pAlphaline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *pAlphaline = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)); |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCr8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCb8; |
| *pAlphaline = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_rgb8_a8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pAlphaline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGg16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination rows */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination rows starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pAlphaline = pAlphaline + pData->iCol + pData->iDestl; |
| |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+iBps); |
| *(pScanline+2) = *(pDataline+2*iBps); |
| *pAlphaline = *(pDataline+3*iBps); |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*pAlphaline); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+4); |
| *pAlphaline = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| iFGg16 = mng_get_uint16 (pDataline+i+i); |
| /* scale background up */ |
| iBGg16 = (mng_uint16)(*(pScanline+i)); |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| /* and return the composed values */ |
| *(pScanline+i) = (mng_uint8)(iFGg16 >> 8); |
| /* alpha remains fully opaque !!! */ |
| } |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*pScanline ); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*(pScanline+2)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCr16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCb16 >> 8); |
| *pAlphaline = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pAlphaline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *pAlphaline = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iFGa8, *(pScanline+i)); |
| } |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCr8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCb8; |
| *pAlphaline = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_rgb8_a8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pAlphaline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination rows */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination rows starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pAlphaline = pAlphaline + pData->iCol + pData->iDestl; |
| |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *pAlphaline = *(pDataline+3); |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pAlphaline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *pDataline; |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *(pDataline+2); |
| *pAlphaline = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+i), iFGa8, *(pScanline+i)); |
| } |
| #else |
| MNG_COMPOSE8 (*pScanline, *pDataline, iFGa8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+2), iFGa8, *(pScanline+2)); |
| #endif |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCr8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCb8; |
| *pAlphaline = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB8_A8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_RGB8_A8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGR8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_bgr8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 8; |
| else |
| pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha value */ |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+2)); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*pScanline ); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iFGb16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iFGr16 >> 8); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| } |
| else |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_bgr8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGg16; |
| mng_uint16 iBGg16; |
| mng_uint8 iA8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+2*iBps); |
| *(pScanline+1) = *(pDataline+iBps); |
| *(pScanline+2) = *pDataline; |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha value */ |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| } |
| else |
| { /* get the proper values */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| iFGg16 = mng_get_uint16 (pDataline+i+i); |
| /* scale background up */ |
| iBGg16 = (mng_uint16)(*(pScanline+2-i)); |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| /* and return the composed values */ |
| *(pScanline+2-i) = (mng_uint8)(iFGg16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| } |
| else |
| { /* do alpha composing */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iA8, *(pScanline+i)); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_bgr8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 3) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| } |
| else |
| { /* do alpha composing */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iA8, *(pScanline+i)); |
| } |
| #else |
| MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_BGR8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGRX8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_bgrx8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 8; |
| else |
| pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha value */ |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+2)); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*pScanline ); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iFGb16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iFGr16 >> 8); |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| else |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)); |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_bgrx8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGg16; |
| mng_uint16 iBGg16; |
| mng_uint8 iA8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+2*iBps); |
| *(pScanline+1) = *(pDataline+iBps); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha value */ |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| else |
| { /* get the proper values */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| iFGg16 = mng_get_uint16 (pDataline+i+i); |
| /* scale background up */ |
| iBGg16 = (mng_uint16)(*(pScanline+2-i)); |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| /* and return the composed values */ |
| *(pScanline+2-i) = (mng_uint8)(iFGg16 >> 8); |
| } |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| else |
| { /* do alpha composing */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iA8, *(pScanline+i)); |
| } |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_bgrx8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + (pData->iSourcel / pData->iColinc) * 4; |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| else |
| { /* do alpha composing */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iA8, *(pScanline+i)); |
| } |
| #else |
| MNG_COMPOSE8 (*pScanline, *(pDataline+2), iA8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iA8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *pDataline, iA8, *(pScanline+2)); |
| #endif |
| *(pScanline+3) = 0xFF; /* filler byte */ |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRX8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_BGRX8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGRA8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_bgra8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+6); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+3); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*(pScanline+3)); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+2)); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*pScanline ); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iFGb16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iFGg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iFGr16 >> 8); |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+2)); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*pScanline ); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCb16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCr16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+3); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (*pScanline, *(pDataline+2), iFGa8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *pDataline, iFGa8, *(pScanline+2)); |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+2), *(pScanline+1), *pScanline, iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCb8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCr8; |
| *(pScanline+3) = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_bgra8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGg16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+2*iBps); |
| *(pScanline+1) = *(pDataline+iBps); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+3*iBps); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*(pScanline+3)); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *(pDataline+4); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| iFGg16 = mng_get_uint16 (pDataline+i+i); |
| /* scale background up */ |
| iBGg16 = (mng_uint16)(*(pScanline+2-i)); |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| /* and return the composed values */ |
| *(pScanline+2-i) = (mng_uint8)(iFGg16 >> 8); |
| /* alpha remains fully opaque !!! */ |
| } |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+2)); |
| iBGg16 = (mng_uint16)(*(pScanline+1)); |
| iBGb16 = (mng_uint16)(*pScanline ); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCb16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCr16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+3); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iFGa8, *(pScanline+i)); |
| } |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+2), *(pScanline+1), *pScanline, iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCb8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCr8; |
| *(pScanline+3) = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_bgra8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+3); |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+3); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+2); |
| *(pScanline+1) = *(pDataline+1); |
| *(pScanline+2) = *pDataline; |
| *(pScanline+3) = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i), *(pDataline+2-i), iFGa8, *(pScanline+i)); |
| } |
| #else |
| MNG_COMPOSE8 (*pScanline, *(pDataline+2), iFGa8, *pScanline ); |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+1), iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *pDataline, iFGa8, *(pScanline+2)); |
| #endif |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+2), *(pScanline+1), *pScanline, iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCb8; |
| *(pScanline+1) = iCg8; |
| *(pScanline+2) = iCr8; |
| *(pScanline+3) = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_BGRA8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGRA8_PM |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_bgra8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| if ((s = pDataline[6]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = pDataline[4]; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { |
| pScanline[0] = DIV255B8(s * pDataline[4]); |
| pScanline[1] = DIV255B8(s * pDataline[2]); |
| pScanline[2] = DIV255B8(s * pDataline[0]); |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = pDataline[2]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { |
| pScanline[0] = DIV255B8(s * pDataline[2]); |
| pScanline[1] = DIV255B8(s * pDataline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[0]); |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| if ((s = pDataline[6]) != 0) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if (s == 255) |
| { /* plain copy it */ |
| pScanline[0] = pDataline[4]; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i] = DIV255B8(s * pDataline[4-i-i] + t * |
| pScanline[i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[4] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = pDataline[2]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[2] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_bgra8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| if ((s = pDataline[6]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = pDataline[4]; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i] = DIV255B8(s * pDataline[4-i-i]); |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[4]); |
| pScanline[1] = DIV255B8(s * pDataline[2]); |
| pScanline[2] = DIV255B8(s * pDataline[0]); |
| #endif |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = pDataline[2]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i] = DIV255B8(s * pDataline[2-i]); |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[2]); |
| pScanline[1] = DIV255B8(s * pDataline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[0]); |
| #endif |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| if ((s = pDataline[6]) != 0) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if (s == 255) |
| { /* plain copy it */ |
| pScanline[0] = pDataline[4]; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i] = DIV255B8(s * pDataline[4-i-i] + t * |
| pScanline[i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[4] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = pDataline[2]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[2] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_bgra8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = pDataline[2]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i] = DIV255B8(s * pDataline[2-i]); |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[2]); |
| pScanline[1] = DIV255B8(s * pDataline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[0]); |
| #endif |
| pScanline[3] = (mng_uint8)s; |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = pDataline[2]; |
| pScanline[1] = pDataline[1]; |
| pScanline[2] = pDataline[0]; |
| pScanline[3] = 255; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[i]); |
| } |
| } |
| #else |
| pScanline[0] = DIV255B8(s * pDataline[2] + t * pScanline[0]); |
| pScanline[1] = DIV255B8(s * pDataline[1] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[0] + t * pScanline[2]); |
| #endif |
| pScanline[3] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[3]))); |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA8PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_BGRA8_PM */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_ABGR8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_abgr8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+6); |
| *(pScanline+1) = *(pDataline+4); |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *pDataline; |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *pDataline; |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*pScanline); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *(pDataline+6); |
| *(pScanline+1) = *(pDataline+4); |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *pDataline; |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+3)); |
| iBGg16 = (mng_uint16)(*(pScanline+2)); |
| iBGb16 = (mng_uint16)(*(pScanline+1)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| /* alpha itself remains fully opaque !!! */ |
| *(pScanline+1) = (mng_uint8)(iFGb16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iFGg16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iFGr16 >> 8); |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+3)); |
| iBGg16 = (mng_uint16)(*(pScanline+2)); |
| iBGb16 = (mng_uint16)(*(pScanline+1)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCa16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCb16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iCr16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pScanline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *pDataline; |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do simple alpha composing */ |
| /* alpha itself remains fully opaque !!! */ |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+2), iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+1), iFGa8, *(pScanline+2)); |
| MNG_COMPOSE8 (*(pScanline+3), *pDataline, iFGa8, *(pScanline+3)); |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+3), *(pScanline+2), *(pScanline+1), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCa8; |
| *(pScanline+1) = iCb8; |
| *(pScanline+2) = iCg8; |
| *(pScanline+3) = iCr8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_abgr8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGg16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *pScanline = *(pDataline+3*iBps); |
| *(pScanline+1) = *(pDataline+2*iBps); |
| *(pScanline+2) = *(pDataline+iBps); |
| *(pScanline+3) = *pDataline; |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*pScanline); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *pScanline = *(pDataline+6); |
| *(pScanline+1) = *(pDataline+4); |
| *(pScanline+2) = *(pDataline+2); |
| *(pScanline+3) = *pDataline; |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| iFGg16 = mng_get_uint16 (pDataline+i+i); |
| /* scale background up */ |
| iBGg16 = (mng_uint16)(*(pScanline+3-i)); |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| /* and return the composed values */ |
| /* alpha itself remains fully opaque !!! */ |
| *(pScanline+3-i) = (mng_uint8)(iFGg16 >> 8); |
| } |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)(*(pScanline+3)); |
| iBGg16 = (mng_uint16)(*(pScanline+2)); |
| iBGb16 = (mng_uint16)(*(pScanline+1)); |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *pScanline = (mng_uint8)(iCa16 >> 8); |
| *(pScanline+1) = (mng_uint8)(iCb16 >> 8); |
| *(pScanline+2) = (mng_uint8)(iCg16 >> 8); |
| *(pScanline+3) = (mng_uint8)(iCr16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pScanline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *pDataline; |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do simple alpha composing */ |
| /* alpha itself remains fully opaque !!! */ |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i+1), *(pDataline+2-i), iFGa8, *(pScanline+i+1)); |
| } |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+3), *(pScanline+2), *(pScanline+1), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCa8; |
| *(pScanline+1) = iCb8; |
| *(pScanline+2) = iCg8; |
| *(pScanline+3) = iCr8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_abgr8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *pDataline; |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *pScanline; |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pScanline = *(pDataline+3); |
| *(pScanline+1) = *(pDataline+2); |
| *(pScanline+2) = *(pDataline+1); |
| *(pScanline+3) = *pDataline; |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do simple alpha composing */ |
| /* alpha itself remains fully opaque !!! */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pScanline+i+1), *(pDataline+2-i), iFGa8, *(pScanline+i+1)); |
| } |
| #else |
| MNG_COMPOSE8 (*(pScanline+1), *(pDataline+2), iFGa8, *(pScanline+1)); |
| MNG_COMPOSE8 (*(pScanline+2), *(pDataline+1), iFGa8, *(pScanline+2)); |
| MNG_COMPOSE8 (*(pScanline+3), *pDataline, iFGa8, *(pScanline+3)); |
| #endif |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| *(pScanline+3), *(pScanline+2), *(pScanline+1), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pScanline = iCa8; |
| *(pScanline+1) = iCb8; |
| *(pScanline+2) = iCg8; |
| *(pScanline+3) = iCr8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_ABGR8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_ABGR8_PM |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_abgr8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| if ((s = pDataline[6]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[4]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[4-i-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[4]); |
| pScanline[2] = DIV255B8(s * pDataline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[0]); |
| #endif |
| } |
| } |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[2-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[2]); |
| pScanline[2] = DIV255B8(s * pDataline[1]); |
| pScanline[3] = DIV255B8(s * pDataline[0]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| if ((s = pDataline[6]) != 0) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if (s == 255) |
| { /* plain copy it */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[4]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[4-i-i] + t * |
| pScanline[i+1]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[4] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[i+1]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_abgr8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| if ((s = pDataline[6]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[4]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[4-i-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[4]); |
| pScanline[2] = DIV255B8(s * pDataline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[0]); |
| #endif |
| } |
| } |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[2-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[2]); |
| pScanline[2] = DIV255B8(s * pDataline[1]); |
| pScanline[3] = DIV255B8(s * pDataline[0]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| if ((s = pDataline[6]) != 0) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if (s == 255) |
| { /* plain copy it */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[4]; |
| pScanline[2] = pDataline[2]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[4-i-i] + t * |
| pScanline[i+1]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[4] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[2] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[i+1]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_abgr8_pm (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint32 s, t; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl << 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values and premultiply */ |
| if ((s = pDataline[3]) == 0) |
| *(mng_uint32*) pScanline = 0; /* set all components = 0 */ |
| else |
| { |
| if (s == 255) |
| { |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { |
| pScanline[0] = (mng_uint8)s; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[2-i]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[2]); |
| pScanline[2] = DIV255B8(s * pDataline[1]); |
| pScanline[3] = DIV255B8(s * pDataline[0]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| if ((s = pDataline[3]) != 0) /* any opacity at all ? */ |
| { /* fully opaque ? */ |
| if (s == 255) |
| { /* then simply copy the values */ |
| pScanline[0] = 255; |
| pScanline[1] = pDataline[2]; |
| pScanline[2] = pDataline[1]; |
| pScanline[3] = pDataline[0]; |
| } |
| else |
| { /* now blend (premultiplied) */ |
| t = 255 - s; |
| pScanline[0] = (mng_uint8)(255 - DIV255B8(t * (255 - pScanline[0]))); |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_DIV |
| { |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| pScanline[i+1] = DIV255B8(s * pDataline[2-i] + t * |
| pScanline[i+1]); |
| } |
| } |
| #else |
| pScanline[1] = DIV255B8(s * pDataline[2] + t * pScanline[1]); |
| pScanline[2] = DIV255B8(s * pDataline[1] + t * pScanline[2]); |
| pScanline[3] = DIV255B8(s * pDataline[0] + t * pScanline[3]); |
| #endif |
| } |
| } |
| |
| pScanline += (pData->iColinc << 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_ABGR8_PM, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_ABGR8_PM */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGR565 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_bgr565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+2)>>5) ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline+4)) >>3) | ( (*(pDataline+2)&0xFC) << 3) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); |
| |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); |
| *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_bgr565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | |
| ( (*(pDataline+iBps)>>5) ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline+2*iBps)) >>3) | |
| ( (*(pDataline+iBps)&0xFC) << 3) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); |
| *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_bgr565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); |
| |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_BGR565 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGB565 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_rgb565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( ( *(pDataline+4)) & 0xF8) | (*(pDataline+2) >> 5 ) ); |
| *pScanline = (mng_uint8)( ( ( *(pDataline )) >> 3 ) | ((*(pDataline+2) & 0xFC) << 3) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | (*(pDataline+1) >> 5 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xFC) << 3) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+4)) & 0xF8) | (*(pDataline+2)>>5) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ((*(pDataline+2)&0xFC) << 3) ); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| |
| /* scale background up */ |
| iBGr16 = (mng_uint8)( *(pScanline+1) & 0xF8 ); |
| iBGg16 = (mng_uint8)( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0) >> 3 ) ); |
| iBGb16 = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8)( (mng_uint8)((iFGb16 >> 8) &0xF8) | ( (mng_uint8)(iFGg16 >> 8) >> 5 ) ); |
| *pScanline = (mng_uint8)( (mng_uint8) (iFGr16 >>11) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | ( *(pDataline+1) >> 5 ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ( (*(pDataline+1) & 0xFC) << 3 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( *(pScanline+1) & 0xF8); |
| iGreen = (mng_uint8)( ( *(pScanline+1) << 5 ) | ( ( (*pScanline)&0xE0)>>3 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( iRed & 0xF8) | ( iGreen >> 5 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_rgb565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( ( *(pDataline+2*iBps)) & 0xF8) | |
| (*(pDataline+iBps) >> 5 ) ); |
| *pScanline = (mng_uint8)( ( ( *(pDataline )) >> 3 ) | |
| ((*(pDataline+iBps) & 0xFC) << 3) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+4)) & 0xF8) | (*(pDataline+2)>>5) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ((*(pDataline+2)&0xFC) << 3) ); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| |
| /* scale background up */ |
| iBGr16 = (mng_uint8)( *(pScanline+1) & 0xF8 ); |
| iBGg16 = (mng_uint8)( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0) >> 3 ) ); |
| iBGb16 = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8)( (mng_uint8)((iFGb16 >> 8) &0xF8) | ( (mng_uint8)(iFGg16 >> 8) >> 5 ) ); |
| *pScanline = (mng_uint8)( (mng_uint8) (iFGr16 >>11) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | ( *(pDataline+1) >> 5 ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ( (*(pDataline+1) & 0xFC) << 3 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( *(pScanline+1) & 0xF8); |
| iGreen = (mng_uint8)( ( *(pScanline+1) << 5 ) | ( ( (*pScanline)&0xE0)>>3 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( iRed & 0xF8) | ( iGreen >> 5 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_rgb565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | (*(pDataline+1) >> 5 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xFC) << 3) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) & 0xF8) | ( *(pDataline+1) >> 5 ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline )) >> 3 ) | ( (*(pDataline+1) & 0xFC) << 3 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( *(pScanline+1) & 0xF8); |
| iGreen = (mng_uint8)( ( *(pScanline+1) << 5 ) | ( ( (*pScanline)&0xE0)>>3 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( iRed & 0xF8) | ( iGreen >> 5 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_RGB565 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGRA565 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_bgra565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+2)>>5) ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline+4)) >>3) | ( (*(pDataline+2)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+6); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*(pScanline+2)); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); |
| *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); |
| *(pScanline+2) = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); |
| } |
| else |
| { /* scale background up */ |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iCr16 >> 8) & 0xF8 ) | ( (mng_uint8)(iCg16 >> 8) >> 5 ) ); |
| *pScanline = (mng_uint8) ( ( (iCb16 >> 11) ) | (((mng_uint8)(iCg16 >> 8) & 0xFC) << 3) ); |
| *(pScanline+2) = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+2); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| } |
| else |
| { |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); |
| /* alpha remains fully opaque !!! */ |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| iRed , iGreen , iBlue , iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| |
| |
| *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); |
| *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); |
| *(pScanline+2) = (mng_uint8) iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc *3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_bgra565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | |
| ( (*(pDataline+iBps)>>5) ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline+2*iBps)) >>3) | |
| ( (*(pDataline+iBps)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+3*iBps); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*(pScanline+2)); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); |
| *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); |
| *(pScanline+2) = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); |
| } |
| else |
| { /* scale background up */ |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iCr16 >> 8) & 0xF8 ) | ( (mng_uint8)(iCg16 >> 8) >> 5 ) ); |
| *pScanline = (mng_uint8) ( ( (iCb16 >> 11) ) | (((mng_uint8)(iCg16 >> 8) & 0xFC) << 3) ); |
| *(pScanline+2) = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+2); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| } |
| else |
| { |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); |
| /* alpha remains fully opaque !!! */ |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| iRed , iGreen , iBlue , iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| |
| |
| *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); |
| *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); |
| *(pScanline+2) = (mng_uint8) iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc *3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_bgra565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+2); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| } |
| else |
| { |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); |
| /* alpha remains fully opaque !!! */ |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| iRed , iGreen , iBlue , iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| |
| |
| *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); |
| *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); |
| *(pScanline+2) = (mng_uint8) iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc *3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGRA565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_BGRA565 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGBA565 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_rgba565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+4))&0xF8 ) | ( (*(pDataline+2)>>5) ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline)) >>3) | ( (*(pDataline+2)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+6); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*(pScanline+2)); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *(pScanline+1) = (mng_uint8)( (*(pDataline+4))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); |
| *pScanline = (mng_uint8)( (*(pDataline)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); |
| *(pScanline+2) = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGb16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iFGb16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iFGr16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGb16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iCb16 >> 8) & 0xF8 ) | ( (mng_uint8)(iCg16 >> 8) >> 5 ) ); |
| *pScanline = (mng_uint8) ( ( (iCr16 >> 11) ) | (((mng_uint8)(iCg16 >> 8) & 0xFC) << 3) ); |
| *(pScanline+2) = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+2); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| } |
| else |
| { |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iBlue = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iRed = (mng_uint8) ( (*pScanline << 3) ); |
| |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); |
| /* alpha remains fully opaque !!! */ |
| *(pScanline+1) = (mng_uint8) ( ( iBlue & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iRed >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| iRed , iGreen , iBlue , iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| |
| |
| *pScanline = (mng_uint8) ( ( iCr8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); |
| *(pScanline+1) = (mng_uint8) ( ( iCb8 & 0xF8 ) | (iCg8>>5) ); |
| *(pScanline+2) = (mng_uint8) iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc *3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_rgba565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint16 iFGa16, iBGa16, iCa16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16; |
| mng_uint8 iCr8, iCg8, iCb8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2*iBps))&0xF8 ) | |
| ( (*(pDataline+iBps)>>5) ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline)) >>3) | |
| ( (*(pDataline+iBps)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+3*iBps); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*(pScanline+2)); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* plain copy it */ |
| *(pScanline+1) = (mng_uint8)( (*(pDataline+4))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); |
| *pScanline = (mng_uint8)( (*(pDataline)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); |
| *(pScanline+2) = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| iBGr16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGb16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iFGa16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iFGb16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iFGr16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); |
| } |
| else |
| { /* scale background up */ |
| iBGr16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGb16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iCb16 >> 8) & 0xF8 ) | ( (mng_uint8)(iCg16 >> 8) >> 5 ) ); |
| *pScanline = (mng_uint8) ( ( (iCr16 >> 11) ) | (((mng_uint8)(iCg16 >> 8) & 0xFC) << 3) ); |
| *(pScanline+2) = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+2); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| } |
| else |
| { |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iBlue = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iRed = (mng_uint8) ( (*pScanline << 3) ); |
| |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); |
| /* alpha remains fully opaque !!! */ |
| *(pScanline+1) = (mng_uint8) ( ( iBlue & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iRed >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| iRed , iGreen , iBlue , iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| |
| |
| *pScanline = (mng_uint8) ( ( iCr8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); |
| *(pScanline+1) = (mng_uint8) ( ( iCb8 & 0xF8 ) | (iCg8>>5) ); |
| *(pScanline+2) = (mng_uint8) iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc *3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_rgba565 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol << 2) + (pData->iDestl * 3); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2))&0xF8 ) | ( (*(pDataline+1)>>5 ) ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline) >>3 ) | ( (*(pDataline+1)&0xFC ) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| |
| pScanline += (pData->iColinc * 3); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iFGa8 = *(pDataline+3); /* get alpha values */ |
| iBGa8 = *(pScanline+2); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline+2)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *(pScanline+2) = *(pDataline+3); |
| } |
| else |
| { |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iBlue = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | ( ((*pScanline) & 0xE0)>>3 ) ); |
| iRed = (mng_uint8) ( (*pScanline << 3) ); |
| |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE8 (iRed, *pDataline, iFGa8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iFGa8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iFGa8, iBlue ); |
| /* alpha remains fully opaque !!! */ |
| *(pScanline+1) = (mng_uint8) ( ( iBlue & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iRed >> 3 ) | ( (iGreen & 0xFC) << 3) ); |
| } |
| else |
| { /* now blend */ |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iFGa8, |
| iRed , iGreen , iBlue , iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| |
| |
| *pScanline = (mng_uint8) ( ( iCr8 >> 3 ) | ( (iCg8 & 0xFC) << 3) ); |
| *(pScanline+1) = (mng_uint8) ( ( iCb8 & 0xF8 ) | (iCg8>>5) ); |
| *(pScanline+2) = (mng_uint8) iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc *3); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGBA565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_RGBA565 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGR565_A8 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_bgr565_a8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pAlphaline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16, iBGa16; |
| mng_uint16 iCr16, iCg16, iCb16, iCa16; |
| mng_uint8 iA8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row |
| starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pAlphaline = pAlphaline + pData->iCol + pData->iDestl; |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ((*(pDataline+2)>>5) ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline+4)) >>3) | ((*(pDataline+2)&0xFC) << 3) ); |
| *pAlphaline = (mng_uint8)(*(pDataline+6)); |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ((*(pDataline+1)>>5 ) ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ((*(pDataline+1)&0xFC ) << 3) ); |
| *pAlphaline = (mng_uint8)(*(pDataline+3)); |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| else /* Not fully opaque */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*pAlphaline); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if ((iA16 == 0xFFFF) || (iBGa16 == 0)) /* fully opaque or background fully transparent ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); |
| *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); |
| *pAlphaline = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { |
| /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); |
| *pAlphaline = (mng_uint8)(iA16>>8); |
| } |
| else /* background is not fully opaque */ |
| { /* scale background up */ |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iA16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iCr16 >> 8)&0xF8 ) | ( (mng_uint8)(iCg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iCb16>>11) ) | (((mng_uint8)(iCg16>>8)&0xFC) << 3) ); |
| *pAlphaline = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| iBGa8 = *pAlphaline; |
| |
| if (iA8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iA8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *pAlphaline = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { |
| /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | (((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ((iGreen & 0xFC) << 3) ); |
| *pAlphaline = iA8; |
| } |
| else /* background not fully opaque */ |
| { |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iA8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); |
| *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ((iCg8 & 0xFC) << 3) ); |
| *pAlphaline = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_bgr565_a8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pAlphaline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16, iBGa16; |
| mng_uint16 iCr16, iCg16, iCb16, iCa16; |
| mng_uint8 iA8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| mng_uint8 iBps; |
| |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row |
| starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pAlphaline = pAlphaline + pData->iCol + pData->iDestl; |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | |
| ((*(pDataline+iBps)>>5) ) ); |
| *pScanline = (mng_uint8)( ( (*(pDataline+2*iBps)) >>3) | |
| ((*(pDataline+iBps)&0xFC) << 3) ); |
| *pAlphaline = (mng_uint8)(*(pDataline+6)); |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 8; |
| } |
| } |
| else /* Not fully opaque */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| iBGa16 = (mng_uint16)(*pAlphaline); |
| iBGa16 = (mng_uint16)(iBGa16 << 8) | iBGa16; |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if ((iA16 == 0xFFFF) || (iBGa16 == 0)) /* fully opaque or background fully transparent ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( (*(pDataline))&0xF8 ) | (mng_uint8)( (*(pDataline+2)>>5 ) ); |
| *pScanline = (mng_uint8)( (*(pDataline+4)) >>3) | (mng_uint8)( (*(pDataline+2)&0xFC) << 3); |
| *pAlphaline = *(pDataline+6); |
| } |
| else |
| { |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { |
| /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| /* scale background up */ |
| |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iFGr16 >> 8)&0xF8 ) | ( (mng_uint8)(iFGg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iFGb16>>11) ) | (((mng_uint8)(iFGg16>>8)&0xFC) << 3) ); |
| *pAlphaline = (mng_uint8)(iA16>>8); |
| } |
| else /* background is not fully opaque */ |
| { /* scale background up */ |
| iBGb16 = (mng_uint16)( (*(pScanline+1)) & 0xF8 ); |
| iBGg16 = (mng_uint16)( (*(pScanline+1) << 5) | (((*(pScanline )) & 0xE0) >>3 ) ); |
| iBGr16 = (mng_uint16)( (*(pScanline )) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* let's blend */ |
| MNG_BLEND16 (mng_get_uint16 (pDataline ), |
| mng_get_uint16 (pDataline+2), |
| mng_get_uint16 (pDataline+4), iA16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( (iCr16 >> 8)&0xF8 ) | ( (mng_uint8)(iCg16>>8) >> 5) ); |
| *pScanline = (mng_uint8) ( ( (iCb16>>11) ) | (((mng_uint8)(iCg16>>8)&0xFC) << 3) ); |
| *pAlphaline = (mng_uint8)(iCa16 >> 8); |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| iBGa8 = *pAlphaline; |
| |
| if (iA8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iA8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *pAlphaline = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { |
| /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | (((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ((iGreen & 0xFC) << 3) ); |
| *pAlphaline = iA8; |
| } |
| else /* background not fully opaque */ |
| { |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iA8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); |
| *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ((iCg8 & 0xFC) << 3) ); |
| *pAlphaline = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_bgr565_a8 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pAlphaline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iA8, iBGa8, iCa8; |
| mng_uint8 iCr8, iCg8, iCb8; |
| |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| pAlphaline = (mng_uint8p)pData->fGetalphaline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row |
| starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pAlphaline = pAlphaline + pData->iCol + pData->iDestl; |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline))&0xF8 ) | ((*(pDataline+1)>>5 ) ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >>3 ) | ((*(pDataline+1)&0xFC ) << 3) ); |
| *pAlphaline = (mng_uint8)(*(pDataline+3)); |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| else /* Not fully opaque */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| iBGa8 = *pAlphaline; |
| |
| if (iA8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iA8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ( (*(pDataline)) &0xF8 ) | (*(pDataline+1) >>5 ) ); |
| *pScanline = (mng_uint8)( ( ((*(pDataline+2))>>3) ) | ((*(pDataline+1)&0xFC) << 3) ); |
| *pAlphaline = *(pDataline+3); |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { |
| /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8) ( *(pScanline+1) & 0xF8 ); |
| iGreen = (mng_uint8) ( (*(pScanline+1) << 5) | (((*pScanline) & 0xE0)>>3 ) ); |
| iBlue = (mng_uint8) ( (*pScanline << 3) ); |
| |
| MNG_COMPOSE8 (iRed, *pDataline, iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8) ( ( iRed & 0xF8 ) | (iGreen>>5) ); |
| *pScanline = (mng_uint8) ( ( iBlue >> 3 ) | ((iGreen & 0xFC) << 3) ); |
| *pAlphaline = iA8; |
| } |
| else /* background not fully opaque */ |
| { |
| MNG_BLEND8 (*pDataline, *(pDataline+1), *(pDataline+2), iA8, |
| *pScanline, *(pScanline+1), *(pScanline+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8) ( ( iCr8 & 0xF8 ) | (iCg8>>5) ); |
| *pScanline = (mng_uint8) ( ( iCb8 >> 3 ) | ((iCg8 & 0xFC) << 3) ); |
| *pAlphaline = iCa8; |
| } |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pAlphaline += pData->iColinc; |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR565_A8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_BGR565_A8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGB555 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_rgb555 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+4) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+4) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| |
| /* scale background up */ |
| iBGr16 = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iBGg16 = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBGb16 = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8)( (mng_uint8)(((iFGb16 >> 8) & 0xF8) >> 1 ) | ( (mng_uint8)(iFGg16 >> 8) >> 6 ) ); |
| *pScanline = (mng_uint8)( (mng_uint8) ((iFGr16 >>11) >> 3 ) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_rgb555 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+2*iBps) & 0xF8) >> 1 ) | (*(pDataline+iBps) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+iBps) & 0xF8) << 2 ) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+4) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| |
| /* scale background up */ |
| iBGr16 = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iBGg16 = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBGb16 = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8)( (mng_uint8)(((iFGb16 >> 8) & 0xF8) >> 1 ) | ( (mng_uint8)(iFGg16 >> 8) >> 6 ) ); |
| *pScanline = (mng_uint8)( (mng_uint8) ((iFGr16 >>11) >> 3 ) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_rgb555 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline+2) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline ) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+2), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+0), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_RGB555, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_RGB555 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGR555 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| mng_retcode mng_display_bgr555 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| if (pData->bIsRGBA16) /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 3); |
| else |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+4) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+4) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| |
| /* scale background up */ |
| iBGb16 = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iBGg16 = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBGr16 = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8)( (mng_uint8)(((iFGr16 >> 8) & 0xF8) >> 1 ) | ( (mng_uint8)(iFGg16 >> 8) >> 6 ) ); |
| *pScanline = (mng_uint8)( (mng_uint8) ((iFGb16 >>11) >> 3 ) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+0), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #else /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| mng_retcode mng_display_bgr555 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint16 iA16; |
| mng_uint16 iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGr16, iBGg16, iBGb16; |
| mng_uint8 iA8; |
| mng_uint8 iBps; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_START); |
| #endif |
| |
| iBps=(mng_uint8)(pData->bIsRGBA16 ? 2:1); |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| /* adjust source row starting-point */ |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << (iBps+1)); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+iBps) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2*iBps) >> 3 ) | ((*(pDataline+iBps) & 0xF8) << 2 ) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4*iBps; |
| } |
| } |
| else |
| { |
| if (pData->bIsRGBA16) /* 16-bit input row ? */ |
| { |
| |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA16 = mng_get_uint16 (pDataline+6); |
| |
| if (iA16) /* any opacity at all ? */ |
| { |
| if (iA16 == 0xFFFF) /* fully opaque ? */ |
| { /* scale down by dropping the LSB */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+2) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+4) >> 3 ) | ((*(pDataline+2) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* get the proper values */ |
| iFGr16 = mng_get_uint16 (pDataline ); |
| iFGg16 = mng_get_uint16 (pDataline+2); |
| iFGb16 = mng_get_uint16 (pDataline+4); |
| |
| /* scale background up */ |
| iBGb16 = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iBGg16 = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBGr16 = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| iBGr16 = (mng_uint16)((mng_uint32)iBGr16 << 8) | iBGr16; |
| iBGg16 = (mng_uint16)((mng_uint32)iBGg16 << 8) | iBGg16; |
| iBGb16 = (mng_uint16)((mng_uint32)iBGb16 << 8) | iBGb16; |
| /* now compose */ |
| MNG_COMPOSE16(iFGr16, iFGr16, iA16, iBGr16); |
| MNG_COMPOSE16(iFGg16, iFGg16, iA16, iBGg16); |
| MNG_COMPOSE16(iFGb16, iFGb16, iA16, iBGb16); |
| /* and return the composed values */ |
| *(pScanline+1) = (mng_uint8)( (mng_uint8)(((iFGr16 >> 8) & 0xF8) >> 1 ) | ( (mng_uint8)(iFGg16 >> 8) >> 6 ) ); |
| *pScanline = (mng_uint8)( (mng_uint8) ((iFGb16 >>11) >> 3 ) | ( ( (mng_uint8)(iFGg16 >> 8) & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 8; |
| } |
| } |
| else |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+0), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_COMPOSE */ |
| #else /* MNG_NO_16BIT_SUPPORT */ |
| mng_retcode mng_display_bgr555 (mng_datap pData) |
| { |
| mng_uint8p pScanline; |
| mng_uint8p pDataline; |
| mng_int32 iX; |
| mng_uint8 iA8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_START); |
| #endif |
| /* viewable row ? */ |
| if ((pData->iRow >= pData->iSourcet) && (pData->iRow < pData->iSourceb)) |
| { /* address destination row */ |
| pScanline = (mng_uint8p)pData->fGetcanvasline (((mng_handle)pData), |
| pData->iRow + pData->iDestt - |
| pData->iSourcet); |
| /* adjust destination row starting-point */ |
| pScanline = pScanline + (pData->iCol * 2) + (pData->iDestl * 2); |
| pDataline = pData->pRGBArow; /* address source row */ |
| |
| pDataline = pDataline + ((pData->iSourcel / pData->iColinc) << 2); |
| |
| if (pData->bIsOpaque) /* forget about transparency ? */ |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { /* copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| else |
| { |
| { |
| for (iX = pData->iSourcel + pData->iCol; iX < pData->iSourcer; |
| iX += pData->iColinc) |
| { |
| iA8 = *(pDataline+3); /* get alpha value */ |
| |
| if (iA8) /* any opacity at all ? */ |
| { |
| if (iA8 == 0xFF) /* fully opaque ? */ |
| { /* then simply copy the values */ |
| *(pScanline+1) = (mng_uint8)( ((*(pDataline ) & 0xF8) >> 1 ) | (*(pDataline+1) >> 6 ) ); |
| *pScanline = (mng_uint8)( ( *(pDataline+2) >> 3 ) | ((*(pDataline+1) & 0xF8) << 2 ) ); |
| } |
| else |
| { /* do alpha composing */ |
| mng_uint8 iRed, iGreen, iBlue; |
| |
| iRed = (mng_uint8)( (*(pScanline+1) & 0xF8) << 1 ); |
| iGreen = (mng_uint8)( (*(pScanline+1) << 6 ) | ( ((*pScanline) & 0xE0) >> 2 ) ); |
| iBlue = (mng_uint8)( *(pScanline ) << 3 ); |
| |
| MNG_COMPOSE8 (iRed, *(pDataline+0), iA8, iRed ); |
| MNG_COMPOSE8 (iGreen, *(pDataline+1), iA8, iGreen ); |
| MNG_COMPOSE8 (iBlue, *(pDataline+2), iA8, iBlue ); |
| |
| *(pScanline+1) = (mng_uint8)( ( (iRed & 0xF8) >> 1 ) | ( iGreen >> 6 ) ); |
| *pScanline = (mng_uint8)( (iBlue >> 3 ) | ( (iGreen & 0xF8) << 2 ) ); |
| } |
| } |
| |
| pScanline += (pData->iColinc * 2); |
| pDataline += 4; |
| } |
| } |
| } |
| } |
| |
| check_update_region (pData); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_BGR555, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_SKIPCANVAS_BGR555 */ |
| |
| |
| #ifndef MNG_SKIPCHUNK_BACK |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Background restore routines - restore the background with info from * */ |
| /* * the BACK and/or bKGD chunk or the app's background canvas * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_restore_bkgd_backimage (mng_datap pData) |
| { |
| /* save some stuff */ |
| mng_uint8p pRGBArow = pData->pRGBArow; |
| mng_int32 iRow = pData->iRow; |
| mng_int32 iRowsamples = pData->iRowsamples; |
| |
| mng_retcode iRetcode; /* work variables */ |
| mng_uint8p pTemp; |
| mng_uint8p pWork = pRGBArow; |
| mng_uint32 iX; |
| mng_int32 iZ; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BACKIMAGE, MNG_LC_START); |
| #endif |
| /* determine row to retrieve */ |
| pData->iRow = pData->iDestt + iRow + pData->iBackimgoffsy; |
| |
| while (pData->iRow >= (mng_int32)pData->iBackimgheight) |
| pData->iRow -= (mng_int32)pData->iBackimgheight; |
| /* set width to that of background image */ |
| pData->iRowsamples = pData->iBackimgwidth; |
| /* retrieve into alternate buffer ! */ |
| pData->pRGBArow = pData->pPrevrow; |
| /* get it then */ |
| iRetcode = ((mng_retrieverow)pData->fRetrieverow) (pData); |
| |
| if (iRetcode) /* on error; bail out */ |
| return iRetcode; |
| /* we got the full row; but now need to |
| paste it into the proper location */ |
| iX = pData->iDestl - pData->iBackimgoffsx; |
| |
| while (iX >= pData->iBackimgwidth) |
| iX -= pData->iBackimgwidth; |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| if (pData->bIsRGBA16) /* 16-bit buffer ? */ |
| { |
| pTemp = pData->pPrevrow + (iX << 3); |
| |
| for (iZ = (pData->iDestr - pData->iDestl); iZ > 0; iZ--) |
| { |
| MNG_COPY (pWork, pTemp, 8); |
| |
| pWork += 8; |
| pTemp += 8; |
| iX++; |
| /* reached end of bkgd-image line ? */ |
| if (iX >= pData->iBackimgwidth) |
| { |
| iX = 0; |
| pTemp = pData->pPrevrow; |
| } |
| } |
| } |
| else |
| #endif |
| { |
| pTemp = pData->pPrevrow + (iX << 2); |
| |
| for (iZ = (pData->iDestr - pData->iDestl); iZ > 0; iZ--) |
| { |
| MNG_COPY (pWork, pTemp, 4); |
| |
| pWork += 4; |
| pTemp += 4; |
| iX++; |
| /* reached end of bkgd-image line ? */ |
| if (iX >= pData->iBackimgwidth) |
| { |
| iX = 0; |
| pTemp = pData->pPrevrow; |
| } |
| } |
| } |
| |
| pData->pRGBArow = pRGBArow; /* restore original values */ |
| pData->iRow = iRow; |
| pData->iRowsamples = iRowsamples; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BACKIMAGE, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_restore_bkgd_backcolor (mng_datap pData) |
| { |
| mng_int32 iX; |
| mng_uint32p pWork32 = (mng_uint32p)pData->pRGBArow; |
| mng_uint32 iWrite; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BACKCOLOR, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| /* fast way for big endian */ |
| iWrite = (((mng_uint8)(pData->iBACKred >> 8)) << 24) | |
| (((mng_uint8)(pData->iBACKgreen >> 8)) << 16) | |
| (((mng_uint8)(pData->iBACKblue >> 8)) << 8) | |
| ( 0xFF ); |
| #elif defined(MNG_LITTLEENDIAN_SUPPORTED) |
| /* fast way for little endian */ |
| iWrite = ( 0xFF << 24) | |
| (((mng_uint8)(pData->iBACKblue >> 8)) << 16) | |
| (((mng_uint8)(pData->iBACKgreen >> 8)) << 8) | |
| (((mng_uint8)(pData->iBACKred >> 8)) ); |
| #else |
| /* generic way, works on all platforms */ |
| /* put the data in memory in the correct order */ |
| { |
| mng_uint8 aBytes[4]; |
| aBytes[0] = (mng_uint8)(pData->iBACKred >> 8); |
| aBytes[1] = (mng_uint8)(pData->iBACKgreen >> 8); |
| aBytes[2] = (mng_uint8)(pData->iBACKblue >> 8); |
| aBytes[3] = 0xFF; |
| /* load that data into a register */ |
| iWrite = *(mng_uint32*) aBytes; |
| } |
| #endif |
| /* ok; drop the background-color in there */ |
| for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) |
| *pWork32++ = iWrite; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BACKCOLOR, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCHUNK_bKGD |
| mng_retcode mng_restore_bkgd_bkgd (mng_datap pData) |
| { |
| mng_int32 iX; |
| mng_uint8p pWork = pData->pRGBArow; |
| mng_imagep pImage = (mng_imagep)pData->pCurrentobj; |
| mng_imagedatap pBuf = pImage->pImgbuf; |
| mng_uint8 iRed = 0; |
| mng_uint8 iGreen = 0; |
| mng_uint8 iBlue = 0; |
| mng_uint32p pWork32 = (mng_uint32p)pWork; |
| mng_uint32 iWrite; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BKGD, MNG_LC_START); |
| #endif |
| |
| switch (pBuf->iColortype) |
| { |
| case 0 : ; /* gray types */ |
| case 4 : { |
| mng_uint8 iGray; |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| if (pBuf->iBitdepth > 8) |
| iGray = (mng_uint8)(pBuf->iBKGDgray >> 8); |
| else |
| #endif |
| { |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| /* LBR scaling */ |
| mng_uint8 multiplier[]={0,255,85,0,17,0,0,0,1}; |
| iGray = (mng_uint8)(multiplier[pBuf->iBitdepth] * pBuf->iBKGDgray); |
| #else |
| iGray = (mng_uint8)pBuf->iBKGDgray; |
| #endif |
| } |
| |
| iRed = iGray; |
| iGreen = iGray; |
| iBlue = iGray; |
| |
| break; |
| } |
| |
| case 3 : { /* indexed type */ |
| iRed = pBuf->aPLTEentries [pBuf->iBKGDindex].iRed; |
| iGreen = pBuf->aPLTEentries [pBuf->iBKGDindex].iGreen; |
| iBlue = pBuf->aPLTEentries [pBuf->iBKGDindex].iBlue; |
| |
| break; |
| } |
| |
| case 2 : ; /* rgb types */ |
| case 6 : { |
| #ifndef MNG_NO_16BIT_SUPPORT |
| if (pBuf->iBitdepth > 8) |
| { |
| iRed = (mng_uint8)(pBuf->iBKGDred >> 8); |
| iGreen = (mng_uint8)(pBuf->iBKGDgreen >> 8); |
| iBlue = (mng_uint8)(pBuf->iBKGDblue >> 8); |
| } |
| else |
| #endif |
| { |
| iRed = (mng_uint8)(pBuf->iBKGDred ); |
| iGreen = (mng_uint8)(pBuf->iBKGDgreen); |
| iBlue = (mng_uint8)(pBuf->iBKGDblue ); |
| } |
| |
| break; |
| } |
| } |
| |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| /* fast way for big endian */ |
| iWrite = (iRed << 24) | |
| (iGreen << 16) | |
| (iBlue << 8); |
| #elif defined(MNG_LITTLEENDIAN_SUPPORTED) |
| /* fast way for little endian */ |
| iWrite = (iBlue << 16) | |
| (iGreen << 8) | |
| (iRed ); |
| #else |
| /* generic way, works on all platforms */ |
| /* put the data in memory in the correct order */ |
| { |
| mng_uint8 aBytes[4]; |
| aBytes[0] = (mng_uint8)(iRed); |
| aBytes[1] = (mng_uint8)(iGreen); |
| aBytes[2] = (mng_uint8)(iBlue); |
| aBytes[3] = 0x00; |
| /* load that data into a register */ |
| iWrite = *(mng_uint32*) aBytes; |
| } |
| #endif |
| /* ok; drop it in there */ |
| for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) |
| *pWork32++ = iWrite; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BKGD, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_restore_bkgd_bgcolor (mng_datap pData) |
| { |
| mng_int32 iX; |
| mng_uint32p pWork32 = (mng_uint32p)pData->pRGBArow; |
| mng_uint32 iWrite; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BGCOLOR, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_BIGENDIAN_SUPPORTED |
| /* fast way for big endian */ |
| iWrite = (((mng_uint8)(pData->iBGred >> 8)) << 24) | |
| (((mng_uint8)(pData->iBGgreen >> 8)) << 16) | |
| (((mng_uint8)(pData->iBGblue >> 8)) << 8); |
| #elif defined(MNG_LITTLEENDIAN_SUPPORTED) |
| /* fast way for little endian */ |
| iWrite = (((mng_uint8)(pData->iBGblue >> 8)) << 16) | |
| (((mng_uint8)(pData->iBGgreen >> 8)) << 8) | |
| (((mng_uint8)(pData->iBGred >> 8)) ); |
| #else |
| /* generic way, works on all platforms */ |
| /* put the data in memory in the correct order */ |
| { |
| mng_uint8 aBytes[4]; |
| aBytes[0] = (mng_uint8)(pData->iBGred >> 8); |
| aBytes[1] = (mng_uint8)(pData->iBGgreen >> 8); |
| aBytes[2] = (mng_uint8)(pData->iBGblue >> 8); |
| aBytes[3] = 0x00; |
| /* load that data into a register */ |
| iWrite = *(mng_uint32*) aBytes; |
| } |
| #endif |
| /* ok; drop the background-color in there */ |
| for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) |
| *pWork32++ = iWrite; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BGCOLOR, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGB8 |
| mng_retcode mng_restore_bkgd_rgb8 (mng_datap pData) |
| { |
| mng_int32 iX; |
| mng_uint8p pBkgd; |
| mng_uint8p pWork = pData->pRGBArow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_RGB8, MNG_LC_START); |
| #endif |
| |
| if (pData->fGetbkgdline) /* can we access the background ? */ |
| { /* point to the right pixel then */ |
| pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, |
| pData->iRow + pData->iDestt) + |
| (3 * pData->iDestl); |
| |
| for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) |
| { |
| *pWork = *pBkgd; /* ok; copy the pixel */ |
| *(pWork+1) = *(pBkgd+1); |
| *(pWork+2) = *(pBkgd+2); |
| *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ |
| |
| pWork += 4; |
| pBkgd += 3; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_SKIPCANVAS_RGB8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGR8 |
| mng_retcode mng_restore_bkgd_bgr8 (mng_datap pData) |
| { |
| mng_int32 iX; |
| mng_uint8p pBkgd; |
| mng_uint8p pWork = pData->pRGBArow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BGR8, MNG_LC_START); |
| #endif |
| |
| if (pData->fGetbkgdline) /* can we access the background ? */ |
| { /* point to the right pixel then */ |
| pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, |
| pData->iRow + pData->iDestt) + |
| (3 * pData->iDestl); |
| |
| for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) |
| { |
| *pWork = *(pBkgd+2); /* ok; copy the pixel */ |
| *(pWork+1) = *(pBkgd+1); |
| *(pWork+2) = *pBkgd; |
| *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ |
| |
| pWork += 4; |
| pBkgd += 3; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BGR8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_SKIPCANVAS_BGR8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGRX8 |
| mng_retcode mng_restore_bkgd_bgrx8 (mng_datap pData) |
| { |
| mng_int32 iX; |
| mng_uint8p pBkgd; |
| mng_uint8p pWork = pData->pRGBArow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BGRX8, MNG_LC_START); |
| #endif |
| |
| if (pData->fGetbkgdline) /* can we access the background ? */ |
| { /* point to the right pixel then */ |
| pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, |
| pData->iRow + pData->iDestt) + |
| (3 * pData->iDestl); |
| |
| for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) |
| { |
| *pWork = *(pBkgd+2); /* ok; copy the pixel */ |
| *(pWork+1) = *(pBkgd+1); |
| *(pWork+2) = *pBkgd; |
| *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ |
| |
| pWork += 4; |
| pBkgd += 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BGRX8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_SKIPCANVAS_BGRX8 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_BGR565 |
| mng_retcode mng_restore_bkgd_bgr565 (mng_datap pData) |
| { |
| mng_int32 iX; |
| mng_uint8p pBkgd; |
| mng_uint8p pWork = pData->pRGBArow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BGR565, MNG_LC_START); |
| #endif |
| |
| if (pData->fGetbkgdline) /* can we access the background ? */ |
| { /* point to the right pixel then */ |
| pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, |
| pData->iRow + pData->iDestt) + |
| (3 * pData->iDestl); |
| |
| for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) |
| { |
| *pWork = (mng_uint8)( *(pBkgd+1) & 0xF8); /* ok; copy the pixel */ |
| *(pWork+1) = (mng_uint8)( (*(pBkgd+1) << 5 ) | ( ((*pBkgd)&0xE0)>>3 ) ); |
| *(pWork+2) = (mng_uint8)( *(pBkgd) << 3 ); |
| *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ |
| |
| pWork += 4; |
| pBkgd += 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_BGR565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_SKIPCANVAS_BGR565 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCANVAS_RGB565 |
| mng_retcode mng_restore_bkgd_rgb565 (mng_datap pData) |
| { |
| mng_int32 iX; |
| mng_uint8p pBkgd; |
| mng_uint8p pWork = pData->pRGBArow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_RGB565, MNG_LC_START); |
| #endif |
| |
| if (pData->fGetbkgdline) /* can we access the background ? */ |
| { /* point to the right pixel then */ |
| pBkgd = (mng_uint8p)pData->fGetbkgdline ((mng_handle)pData, |
| pData->iRow + pData->iDestt) + |
| (3 * pData->iDestl); |
| |
| for (iX = (pData->iSourcer - pData->iSourcel); iX > 0; iX--) |
| { |
| *pWork = (mng_uint8)( *(pBkgd)&0xF8); /* ok; copy the pixel */ |
| *(pWork+1) = (mng_uint8)( (*(pBkgd+1) << 5) | ( ((*pBkgd)&0xE0)>>3 ) ); |
| *(pWork+2) = (mng_uint8)( *(pBkgd+1) << 3); |
| *(pWork+3) = 0x00; /* transparant for alpha-canvasses */ |
| |
| pWork += 4; |
| pBkgd += 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RESTORE_RGB565, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_SKIPCANVAS_RBB565 */ |
| |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Row retrieval routines - retrieve processed & uncompressed row-data * */ |
| /* * from the current "object" * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| /* TODO: a serious optimization is to retrieve only those pixels that will |
| actually be displayed; this would require changes in |
| the "display_image" routine (in mng_display.c) & |
| all the "retrieve_xxx" routines below & |
| the "display_xxx" routines above !!!!! |
| NOTE that "correct_xxx" routines would not require modification */ |
| |
| mng_retcode mng_retrieve_g8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iG; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_G8, MNG_LC_START); |
| #endif |
| |
| pRGBArow = pData->pRGBArow; /* temporary work pointers */ |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| |
| if (pBuf->bHasTRNS) /* tRNS in buffer ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iG = *pWorkrow; /* get the gray-value */ |
| /* is it transparent ? */ |
| if ((mng_uint16)iG == pBuf->iTRNSgray) |
| { |
| *pRGBArow = 0x00; /* nuttin to display */ |
| *(pRGBArow+1) = 0x00; |
| *(pRGBArow+2) = 0x00; |
| *(pRGBArow+3) = 0x00; |
| } |
| else |
| { |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_uint8 multiplier[]={0,255,85,0,17,0,0,0,1}; |
| iG = (mng_uint8)(iG * multiplier[pBuf->iBitdepth]); |
| #endif |
| |
| *pRGBArow = iG; /* put in intermediate row */ |
| *(pRGBArow+1) = iG; |
| *(pRGBArow+2) = iG; |
| *(pRGBArow+3) = 0xFF; |
| } |
| |
| pWorkrow++; /* next pixel */ |
| pRGBArow += 4; |
| } |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_uint8 multiplier[]={0,255,85,0,17,0,0,0,1}; /* LBR scaling */ |
| iG = (mng_uint8)(multiplier[pBuf->iBitdepth] * *pWorkrow); |
| #else |
| iG = *pWorkrow; /* get the gray-value */ |
| #endif |
| |
| *pRGBArow = iG; /* put in intermediate row */ |
| *(pRGBArow+1) = iG; |
| *(pRGBArow+2) = iG; |
| *(pRGBArow+3) = 0xFF; |
| |
| pWorkrow++; /* next pixel */ |
| pRGBArow += 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_retrieve_g16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint16 iG; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_G16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pRGBArow = pData->pRGBArow; |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| |
| if (pBuf->bHasTRNS) /* tRNS in buffer ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ |
| /* is it transparent ? */ |
| if (iG == pBuf->iTRNSgray) |
| { /* nuttin to display */ |
| mng_put_uint16 (pRGBArow, 0x0000); |
| mng_put_uint16 (pRGBArow+2, 0x0000); |
| mng_put_uint16 (pRGBArow+4, 0x0000); |
| mng_put_uint16 (pRGBArow+6, 0x0000); |
| } |
| else |
| { /* put in intermediate row */ |
| mng_put_uint16 (pRGBArow, iG); |
| mng_put_uint16 (pRGBArow+2, iG); |
| mng_put_uint16 (pRGBArow+4, iG); |
| mng_put_uint16 (pRGBArow+6, 0xFFFF); |
| } |
| |
| pWorkrow += 2; /* next pixel */ |
| pRGBArow += 8; |
| } |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ |
| |
| mng_put_uint16 (pRGBArow, iG); /* and put in intermediate row */ |
| mng_put_uint16 (pRGBArow+2, iG); |
| mng_put_uint16 (pRGBArow+4, iG); |
| mng_put_uint16 (pRGBArow+6, 0xFFFF); |
| |
| pWorkrow += 2; /* next pixel */ |
| pRGBArow += 8; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_retrieve_rgb8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iR, iG, iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB8, MNG_LC_START); |
| #endif |
| |
| pRGBArow = pData->pRGBArow; /* temporary work pointers */ |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| |
| if (pBuf->bHasTRNS) /* tRNS in buffer ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iR = *pWorkrow; /* get the rgb-values */ |
| iG = *(pWorkrow+1); |
| iB = *(pWorkrow+2); |
| /* is it transparent ? */ |
| if (((mng_uint16)iR == pBuf->iTRNSred ) && |
| ((mng_uint16)iG == pBuf->iTRNSgreen) && |
| ((mng_uint16)iB == pBuf->iTRNSblue ) ) |
| { |
| *pRGBArow = 0x00; /* nothing to display */ |
| *(pRGBArow+1) = 0x00; |
| *(pRGBArow+2) = 0x00; |
| *(pRGBArow+3) = 0x00; |
| } |
| else |
| { |
| *pRGBArow = iR; /* put in intermediate row */ |
| *(pRGBArow+1) = iG; |
| *(pRGBArow+2) = iB; |
| *(pRGBArow+3) = 0xFF; |
| } |
| |
| pWorkrow += 3; /* next pixel */ |
| pRGBArow += 4; |
| } |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pRGBArow = *pWorkrow; /* just copy the pixel */ |
| *(pRGBArow+1) = *(pWorkrow+1); |
| *(pRGBArow+2) = *(pWorkrow+2); |
| *(pRGBArow+3) = 0xFF; |
| |
| pWorkrow += 3; /* next pixel */ |
| pRGBArow += 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_retrieve_rgb16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint16 iR, iG, iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pRGBArow = pData->pRGBArow; |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| |
| if (pBuf->bHasTRNS) /* tRNS in buffer ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iR = mng_get_uint16 (pWorkrow); /* get the rgb-values */ |
| iG = mng_get_uint16 (pWorkrow+2); |
| iB = mng_get_uint16 (pWorkrow+4); |
| /* is it transparent ? */ |
| if ((iR == pBuf->iTRNSred ) && |
| (iG == pBuf->iTRNSgreen) && |
| (iB == pBuf->iTRNSblue ) ) |
| { /* nothing to display */ |
| mng_put_uint16 (pRGBArow, 0x0000); |
| mng_put_uint16 (pRGBArow+2, 0x0000); |
| mng_put_uint16 (pRGBArow+4, 0x0000); |
| mng_put_uint16 (pRGBArow+6, 0x0000); |
| } |
| else |
| { /* put in intermediate row */ |
| mng_put_uint16 (pRGBArow, iR); |
| mng_put_uint16 (pRGBArow+2, iG); |
| mng_put_uint16 (pRGBArow+4, iB); |
| mng_put_uint16 (pRGBArow+6, 0xFFFF); |
| } |
| |
| pWorkrow += 6; /* next pixel */ |
| pRGBArow += 8; |
| } |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* just copy the pixel */ |
| mng_put_uint16 (pRGBArow, mng_get_uint16 (pWorkrow )); |
| mng_put_uint16 (pRGBArow+2, mng_get_uint16 (pWorkrow+2)); |
| mng_put_uint16 (pRGBArow+4, mng_get_uint16 (pWorkrow+4)); |
| mng_put_uint16 (pRGBArow+6, 0xFFFF); |
| |
| pWorkrow += 6; /* next pixel */ |
| pRGBArow += 8; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_retrieve_idx8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iQ; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_IDX8, MNG_LC_START); |
| #endif |
| |
| pRGBArow = pData->pRGBArow; /* temporary work pointers */ |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| |
| if (pBuf->bHasTRNS) /* tRNS in buffer ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iQ = *pWorkrow; /* get the index */ |
| /* is it valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| *pRGBArow = pBuf->aPLTEentries [iQ].iRed; |
| *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; |
| *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; |
| /* transparency for this index ? */ |
| if ((mng_uint32)iQ < pBuf->iTRNScount) |
| *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; |
| else |
| *(pRGBArow+3) = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pWorkrow++; /* next pixel */ |
| pRGBArow += 4; |
| } |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iQ = *pWorkrow; /* get the index */ |
| /* is it valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| *pRGBArow = pBuf->aPLTEentries [iQ].iRed; |
| *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; |
| *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; |
| *(pRGBArow+3) = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pWorkrow++; /* next pixel */ |
| pRGBArow += 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_IDX8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_retrieve_ga8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iG; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_GA8, MNG_LC_START); |
| #endif |
| |
| pRGBArow = pData->pRGBArow; /* temporary work pointers */ |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iG = *pWorkrow; /* get the gray-value */ |
| *pRGBArow = iG; /* put in intermediate row */ |
| *(pRGBArow+1) = iG; |
| *(pRGBArow+2) = iG; |
| *(pRGBArow+3) = *(pWorkrow+1); |
| |
| pWorkrow += 2; /* next pixel */ |
| pRGBArow += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_GA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_retrieve_ga16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint16 iG; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_GA16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pRGBArow = pData->pRGBArow; |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iG = mng_get_uint16 (pWorkrow); /* get the gray-value */ |
| |
| mng_put_uint16 (pRGBArow, iG); /* and put in intermediate row */ |
| mng_put_uint16 (pRGBArow+2, iG); |
| mng_put_uint16 (pRGBArow+4, iG); |
| mng_put_uint16 (pRGBArow+6, mng_get_uint16 (pWorkrow+2)); |
| |
| pWorkrow += 4; /* next pixel */ |
| pRGBArow += 8; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_GA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_retrieve_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA8, MNG_LC_START); |
| #endif |
| |
| pRGBArow = pData->pRGBArow; /* temporary work pointers */ |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| /* can't be easier than this ! */ |
| MNG_COPY (pRGBArow, pWorkrow, pBuf->iRowsize); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_retrieve_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pRetrieveobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pRGBArow = pData->pRGBArow; |
| pWorkrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize); |
| /* can't be easier than this ! */ |
| MNG_COPY (pRGBArow, pWorkrow, pBuf->iRowsize); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_RETRIEVE_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Row storage routines - store processed & uncompressed row-data * */ |
| /* * into the current "object" * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_store_g1 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G1, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* is it white ? */ |
| *pOutrow = 0x01; /* white */ |
| else |
| *pOutrow = 0x00; /* black */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 1; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_g2 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G2, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| |
| iQ = (mng_uint8)((iB & iM) >> iS); /* get the gray level */ |
| *pOutrow = iQ; /* put in object buffer */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_g4 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G4, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| |
| iQ = (mng_uint8)((iB & iM) >> iS); /* get the gray level */ |
| *pOutrow = iQ; /* put in object buffer */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_g8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_store_g16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* copy into object buffer */ |
| mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); |
| |
| pOutrow += (pData->iColinc << 1); /* next pixel */ |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_rgb8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_RGB8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* copy the RGB bytes */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| |
| pWorkrow += 3; /* next pixel */ |
| pOutrow += (pData->iColinc * 3); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_store_rgb16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_RGB16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| MNG_COPY (pOutrow, pWorkrow, 6); /* copy the RGB bytes */ |
| |
| pWorkrow += 6; /* next pixel */ |
| pOutrow += (pData->iColinc * 6); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_store_idx1 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_IDX1, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* store the index */ |
| *pOutrow = 0x01; |
| else |
| *pOutrow = 0x00; |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 1; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_IDX1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_idx2 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_IDX2, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| /* store the index */ |
| *pOutrow = (mng_uint8)((iB & iM) >> iS); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_IDX2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_idx4 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_IDX4, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* store the index */ |
| *pOutrow = (mng_uint8)((iB & iM) >> iS); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_IDX4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_idx8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_IDX8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_IDX8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_ga8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_GA8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* copy the GA bytes */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| |
| pWorkrow += 2; /* next pixel */ |
| pOutrow += (pData->iColinc << 1); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_GA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_store_ga16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_GA16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| MNG_COPY (pOutrow, pWorkrow, 4); /* copy the GA bytes */ |
| |
| pWorkrow += 4; /* next pixel */ |
| pOutrow += (pData->iColinc << 2); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_GA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_RGBA8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* copy the RGBA bytes */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| *(pOutrow+3) = *(pWorkrow+3); |
| |
| pWorkrow += 4; /* next pixel */ |
| pOutrow += (pData->iColinc << 2); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_store_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_RGBA16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| MNG_COPY (pOutrow, pWorkrow, 8); /* copy the RGBA bytes */ |
| |
| pWorkrow += 8; /* next pixel */ |
| pOutrow += (pData->iColinc << 3); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Row storage routines (JPEG) - store processed & uncompressed row-data * */ |
| /* * into the current "object" * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_INCLUDE_JNG |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_g8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pJPEGrow; /* temporary work pointers */ |
| pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); |
| /* easy as pie ... */ |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8, MNG_LC_END); |
| #endif |
| |
| return mng_next_jpeg_row (pData); /* we've got one more row of gray-samples */ |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_rgb8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| #if RGB_PIXELSIZE != 3 |
| mng_int32 iX; |
| #endif |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pJPEGrow; /* temporary work pointers */ |
| pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); |
| |
| #if RGB_PIXELSIZE == 3 |
| /* easy as pie ... */ |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples * 3); |
| #else |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* copy pixel into object buffer */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| |
| pOutrow += 3; /* next pixel */ |
| pWorkrow += RGB_PIXELSIZE; |
| } |
| #endif |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8, MNG_LC_END); |
| #endif |
| |
| return mng_next_jpeg_row (pData); /* we've got one more row of rgb-samples */ |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_ga8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_GA8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pJPEGrow; /* temporary work pointers */ |
| pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* copy into object buffer */ |
| |
| pOutrow += 2; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_GA8, MNG_LC_END); |
| #endif |
| |
| return mng_next_jpeg_row (pData); /* we've got one more row of gray-samples */ |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGBA8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pJPEGrow; /* temporary work pointers */ |
| pOutrow = pBuf->pImgdata + (pData->iJPEGrow * pBuf->iRowsize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* copy pixel into object buffer */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| |
| pOutrow += 4; /* next pixel */ |
| pWorkrow += RGB_PIXELSIZE; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGBA8, MNG_LC_END); |
| #endif |
| |
| return mng_next_jpeg_row (pData); /* we've got one more row of rgb-samples */ |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_g8_alpha (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_ALPHA, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pJPEGrow2; |
| pOutrow = pBuf->pImgdata + (pData->iJPEGalpharow * pBuf->iRowsize) + 1; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| |
| pOutrow += 2; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_ALPHA, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_rgb8_alpha (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_ALPHA, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pJPEGrow2; |
| pOutrow = pBuf->pImgdata + (pData->iJPEGalpharow * pBuf->iRowsize) + 3; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| |
| pOutrow += 4; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_ALPHA, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_store_jpeg_g8_a1 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A1, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 1; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* is it opaque ? */ |
| *pOutrow = 0xFF; /* opaque */ |
| else |
| *pOutrow = 0x00; /* transparent */ |
| |
| pOutrow += 2; /* next pixel */ |
| iM >>= 1; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A1, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_g8_a2 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A2, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 1; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| { |
| const mng_uint8 alpha_level[4] = { 0x00, 0x55, 0xAA, 0xFF}; |
| *pOutrow = alpha_level[((iB & iM) >> iS)] ; |
| } |
| #else |
| switch ((iB & iM) >> iS) /* determine the alpha level */ |
| { |
| case 0x03 : { *pOutrow = 0xFF; break; } |
| case 0x02 : { *pOutrow = 0xAA; break; } |
| case 0x01 : { *pOutrow = 0x55; break; } |
| default : { *pOutrow = 0x00; } |
| } |
| #endif |
| |
| pOutrow += 2; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A2, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_g8_a4 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A4, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 1; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the alpha level */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| iQ = (mng_uint8)(iQ + (iQ << 4)); /* expand to 8-bit by replication */ |
| |
| *pOutrow = iQ; /* put in object buffer */ |
| |
| pOutrow += 2; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A4, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_g8_a8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 1; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| |
| pOutrow += 2; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A8, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_store_jpeg_g8_a16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 1; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* only high-order byte! */ |
| |
| pOutrow += 2; /* next pixel */ |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G8_A16, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_store_jpeg_rgb8_a1 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A1, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 3; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* is it opaque ? */ |
| *pOutrow = 0xFF; /* opaque */ |
| else |
| *pOutrow = 0x00; /* transparent */ |
| |
| pOutrow += 4; /* next pixel */ |
| iM >>= 1; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A1, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_rgb8_a2 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A2, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 3; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| { |
| const mng_uint8 alpha_level[4] = { 0x00, 0x55, 0xAA, 0xFF}; |
| *pOutrow = alpha_level[((iB & iM) >> iS)] ; |
| } |
| #else |
| switch ((iB & iM) >> iS) /* determine the alpha level */ |
| { |
| case 0x03 : { *pOutrow = 0xFF; break; } |
| case 0x02 : { *pOutrow = 0xAA; break; } |
| case 0x01 : { *pOutrow = 0x55; break; } |
| default : { *pOutrow = 0x00; } |
| } |
| #endif |
| |
| pOutrow += 4; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A2, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_rgb8_a4 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A4, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 3; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the alpha level */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| iQ = (mng_uint8)(iQ + (iQ << 4)); /* expand to 8-bit by replication */ |
| |
| *pOutrow = iQ; /* put in object buffer */ |
| |
| pOutrow += 4; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A4, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_store_jpeg_rgb8_a8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 3; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in buffer */ |
| |
| pOutrow += 4; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A8, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_store_jpeg_rgb8_a16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 3; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* only high-order byte */ |
| |
| pOutrow += 4; /* next pixel */ |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_RGB8_A16, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_SUPPORT_JPEG12 |
| mng_retcode mng_store_jpeg_g12_a1 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A1, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 2; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* opaque ? */ |
| mng_put_uint16 (pOutrow, 0xFFFF);/* opaque */ |
| else |
| mng_put_uint16 (pOutrow, 0x0000);/* transparent */ |
| |
| pOutrow += 4; /* next pixel */ |
| iM >>= 1; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A1, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif /* MNG_SUPPORT_JPEG12 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_SUPPORT_JPEG12 |
| mng_retcode mng_store_jpeg_g12_a2 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A2, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 2; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| { |
| const mng_uint16 gray_level[4] = { 0x0000, 0x5555, 0xAAAA, 0xFFFF}; |
| mng_put_uint16 (pOutrow, gray_level[((iB & iM) >> iS)]) ; |
| } |
| #else |
| switch ((iB & iM) >> iS) /* determine the gray level */ |
| { |
| case 0x03 : { mng_put_uint16 (pOutrow, 0xFFFF); break; } |
| case 0x02 : { mng_put_uint16 (pOutrow, 0xAAAA); break; } |
| case 0x01 : { mng_put_uint16 (pOutrow, 0x5555); break; } |
| default : { mng_put_uint16 (pOutrow, 0x0000); } |
| } |
| #endif |
| |
| pOutrow += 4; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A2, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif /* MNG_SUPPORT_JPEG12 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_SUPPORT_JPEG12 |
| mng_retcode mng_store_jpeg_g12_a4 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint16 iQ; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A4, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 2; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the gray level */ |
| iQ = (mng_uint16)((iB & iM) >> iS); |
| iQ = (mng_uint16)(iQ + (iQ << 4)); /* expand to 16-bit by replication */ |
| iQ = (mng_uint16)(iQ + (iQ << 8)); |
| /* put in object buffer */ |
| mng_put_uint16 (pOutrow, iQ); |
| |
| pOutrow += 4; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A4, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif /* MNG_SUPPORT_JPEG12 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_SUPPORT_JPEG12 |
| mng_retcode mng_store_jpeg_g12_a8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 2; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iW = (mng_uint16)(*pWorkrow); /* get input byte */ |
| iW = (mng_uint16)(iW + (iW << 8)); /* expand to 16-bit by replication */ |
| |
| mng_put_uint16 (pOutrow, iW); /* put in object buffer */ |
| |
| pOutrow += 4; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A8, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif /* MNG_SUPPORT_JPEG12 */ |
| |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_SUPPORT_JPEG12 |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_store_jpeg_g12_a16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 2; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* copy it */ |
| mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); |
| |
| pOutrow += 4; /* next pixel */ |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_STORE_JPEG_G12_A16, MNG_LC_END); |
| #endif |
| /* we've got one more row of alpha-samples */ |
| return mng_next_jpeg_alpharow (pData); |
| } |
| #endif |
| #endif /* MNG_SUPPORT_JPEG12 */ |
| |
| /* ************************************************************************** */ |
| |
| #endif /* MNG_INCLUDE_JNG */ |
| |
| #ifndef MNG_NO_DELTA_PNG |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Delta-image row routines - apply the processed & uncompressed row-data * */ |
| /* * onto the target "object" * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_delta_g1 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G1, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* is it white ? */ |
| *pOutrow = 0xFF; /* white */ |
| else |
| *pOutrow = 0x00; /* black */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 1; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* invert if it is white ? */ |
| *pOutrow = (mng_uint8)(*pOutrow ^ 0xFF); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 1; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G1, MNG_LC_END); |
| #endif |
| |
| return mng_store_g1 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_g2 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| const mng_uint8 level[4] = { 0x00, 0x55, 0xAA, 0xFF}; |
| #endif |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G2, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| *pOutrow = level[((iB & iM) >> iS)] ; |
| #else |
| switch ((iB & iM) >> iS) /* determine the alpha level */ |
| { |
| case 0x03 : { *pOutrow = 0xFF; break; } |
| case 0x02 : { *pOutrow = 0xAA; break; } |
| case 0x01 : { *pOutrow = 0x55; break; } |
| default : { *pOutrow = 0x00; } |
| } |
| #endif |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| *pOutrow = level[((*pOutrow >> 6) + ((iB & iM) >> iS)) & 0x03] ; |
| #else |
| switch (((*pOutrow >> 6) + ((iB & iM) >> iS)) & 0x03) |
| { |
| case 0x03 : { *pOutrow = 0xFF; break; } |
| case 0x02 : { *pOutrow = 0xAA; break; } |
| case 0x01 : { *pOutrow = 0x55; break; } |
| default : { *pOutrow = 0x00; } |
| } |
| #endif |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G2, MNG_LC_END); |
| #endif |
| |
| return mng_store_g2 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_g4 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G4, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the gray level */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| /* expand to 8-bit by replication */ |
| iQ = (mng_uint8)(iQ + (iQ << 4)); |
| |
| *pOutrow = iQ; /* put in object buffer */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the gray level */ |
| iQ = (mng_uint8)(((*pOutrow >> 4) + ((iB & iM) >> iS)) & 0x0F); |
| /* expand to 8-bit by replication */ |
| iQ = (mng_uint8)(iQ + (iQ << 4)); |
| |
| *pOutrow = iQ; /* put in object buffer */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G4, MNG_LC_END); |
| #endif |
| |
| return mng_store_g4 (pData); |
| } |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_g8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| pWorkrow++; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G8, MNG_LC_END); |
| #endif |
| |
| return mng_store_g8 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_g16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 1); |
| pWorkrow += 2; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + |
| mng_get_uint16 (pWorkrow) )); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 1); |
| pWorkrow += 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G16, MNG_LC_END); |
| #endif |
| |
| return mng_store_g16 (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_rgb8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGB8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| /* next pixel */ |
| pOutrow += (pData->iColinc * 3); |
| pWorkrow += 3; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); |
| *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); |
| *(pOutrow+2) = (mng_uint8)(*(pOutrow+2) + *(pWorkrow+2)); |
| /* next pixel */ |
| pOutrow += (pData->iColinc * 3); |
| pWorkrow += 3; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGB8, MNG_LC_END); |
| #endif |
| |
| return mng_store_rgb8 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_rgb16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGB16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| *(pOutrow+3) = *(pWorkrow+3); |
| *(pOutrow+4) = *(pWorkrow+4); |
| *(pOutrow+5) = *(pWorkrow+5); |
| /* next pixel */ |
| pOutrow += (pData->iColinc * 6); |
| pWorkrow += 6; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + |
| mng_get_uint16 (pWorkrow ) )); |
| mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + |
| mng_get_uint16 (pWorkrow+2) )); |
| mng_put_uint16 (pOutrow+4, (mng_uint16)(mng_get_uint16 (pOutrow+4 ) + |
| mng_get_uint16 (pWorkrow+4) )); |
| /* next pixel */ |
| pOutrow += (pData->iColinc * 6); |
| pWorkrow += 6; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGB16, MNG_LC_END); |
| #endif |
| |
| return mng_store_rgb16 (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_delta_idx1 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_IDX1, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* put the right index value */ |
| *pOutrow = 1; |
| else |
| *pOutrow = 0; |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 1; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* invert if it is non-zero index */ |
| *pOutrow = (mng_uint8)(*pOutrow ^ 0x01); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 1; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_IDX1, MNG_LC_END); |
| #endif |
| |
| return mng_store_idx1 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_idx2 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_IDX2, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| /* put the index */ |
| *pOutrow = (mng_uint8)((iB & iM) >> iS); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| /* calculate the index */ |
| *pOutrow = (mng_uint8)((*pOutrow + ((iB & iM) >> iS)) & 0x03); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_IDX2, MNG_LC_END); |
| #endif |
| |
| return mng_store_idx2 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_idx4 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_IDX4, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* put the index */ |
| *pOutrow = (mng_uint8)((iB & iM) >> iS); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* calculate the index */ |
| *pOutrow = (mng_uint8)((*pOutrow + ((iB & iM) >> iS)) & 0x0F); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_IDX4, MNG_LC_END); |
| #endif |
| |
| return mng_store_idx4 (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_idx8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_IDX8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| pWorkrow++; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow); |
| |
| pOutrow += pData->iColinc; /* next pixel */ |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_IDX8, MNG_LC_END); |
| #endif |
| |
| return mng_store_idx8 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_ga8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 1); |
| pWorkrow += 2; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); |
| *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 1); |
| pWorkrow += 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA8, MNG_LC_END); |
| #endif |
| |
| return mng_store_ga8 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_ga16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| *(pOutrow+3) = *(pWorkrow+3); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 2); |
| pWorkrow += 4; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + |
| mng_get_uint16 (pWorkrow ) )); |
| mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + |
| mng_get_uint16 (pWorkrow+2) )); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 2); |
| pWorkrow += 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA16, MNG_LC_END); |
| #endif |
| |
| return mng_store_ga16 (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; /* put in object buffer */ |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| *(pOutrow+3) = *(pWorkrow+3); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 2); |
| pWorkrow += 4; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| *pOutrow = (mng_uint8)(*pOutrow + *pWorkrow ); |
| *(pOutrow+1) = (mng_uint8)(*(pOutrow+1) + *(pWorkrow+1)); |
| *(pOutrow+2) = (mng_uint8)(*(pOutrow+2) + *(pWorkrow+2)); |
| *(pOutrow+3) = (mng_uint8)(*(pOutrow+3) + *(pWorkrow+3)); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 2); |
| pWorkrow += 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA8, MNG_LC_END); |
| #endif |
| |
| return mng_store_rgba8 (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pDeltaImage)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iDeltaBlocky * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + |
| (pData->iDeltaBlockx * pBuf->iSamplesize); |
| /* pixel replace ? */ |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| MNG_COPY (pOutrow, pWorkrow, 8); /* put in object buffer */ |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 3); |
| pWorkrow += 8; |
| } |
| } |
| else |
| { /* pixel add ! */ |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* add to object buffer */ |
| mng_put_uint16 (pOutrow, (mng_uint16)(mng_get_uint16 (pOutrow ) + |
| mng_get_uint16 (pWorkrow ) )); |
| mng_put_uint16 (pOutrow+2, (mng_uint16)(mng_get_uint16 (pOutrow+2 ) + |
| mng_get_uint16 (pWorkrow+2) )); |
| mng_put_uint16 (pOutrow+4, (mng_uint16)(mng_get_uint16 (pOutrow+4 ) + |
| mng_get_uint16 (pWorkrow+4) )); |
| mng_put_uint16 (pOutrow+6, (mng_uint16)(mng_get_uint16 (pOutrow+6 ) + |
| mng_get_uint16 (pWorkrow+6) )); |
| /* next pixel */ |
| pOutrow += (pData->iColinc << 3); |
| pWorkrow += 8; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA16, MNG_LC_END); |
| #endif |
| |
| return mng_store_rgba16 (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Delta-image row routines - apply the source row onto the target * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_delta_g1_g1 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G1_G1, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0x01); |
| |
| pOutrow++; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G1_G1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_g2_g2 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G2_G2, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0x03); |
| |
| pOutrow++; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G2_G2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_g4_g4 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G4_G4, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0x0F); |
| |
| pOutrow++; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G4_G4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_g8_g8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G8_G8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0xFF); |
| |
| pOutrow++; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G8_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_g16_g16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G16_G16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 1)); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow) + |
| mng_get_uint16 (pWorkrow)) & 0xFFFF)); |
| |
| pOutrow += 2; |
| pWorkrow += 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_G16_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| #endif /* MNG_NO_DELTA_PNG */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_rgb8_rgb8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGB8_RGB8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples * 3); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples*3; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < (pData->iRowsamples * 3); iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0xFF); |
| |
| pOutrow++; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGB8_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_rgb16_rgb16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGB16_RGB16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples * 6)); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + |
| mng_get_uint16 (pWorkrow )) & 0xFFFF)); |
| mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + |
| mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); |
| mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + |
| mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); |
| |
| pOutrow += 6; |
| pWorkrow += 6; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGB16_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_DELTA_PNG |
| mng_retcode mng_delta_ga8_ga8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA8_GA8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples << 1); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = (pData->iRowsamples<<1); iX > 0; iX--) |
| #else |
| for (iX = 0; iX < (pData->iRowsamples << 1); iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0xFF); |
| |
| pOutrow++; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA8_GA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_ga8_g8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA8_G8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; |
| |
| pOutrow += 2; |
| pWorkrow++; |
| } |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0xFF); |
| |
| pOutrow += 2; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA8_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_ga8_a8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA8_A8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 1; |
| |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; |
| |
| pOutrow += 2; |
| pWorkrow++; |
| } |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0xFF); |
| |
| pOutrow += 2; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA8_A8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_ga16_ga16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA16_GA16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 2)); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + |
| mng_get_uint16 (pWorkrow )) & 0xFFFF)); |
| mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + |
| mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); |
| |
| pOutrow += 4; |
| pWorkrow += 4; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA16_GA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_ga16_g16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA16_G16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow)); |
| |
| pOutrow += 4; |
| pWorkrow += 2; |
| } |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow) + |
| mng_get_uint16 (pWorkrow)) & 0xFFFF)); |
| |
| pOutrow += 4; |
| pWorkrow += 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA16_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_ga16_a16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA16_A16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow+2, mng_get_uint16 (pWorkrow)); |
| |
| pOutrow += 4; |
| pWorkrow += 2; |
| } |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + |
| mng_get_uint16 (pWorkrow)) & 0xFFFF)); |
| |
| pOutrow += 4; |
| pWorkrow += 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_GA16_A16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| #endif /* MNG_NO_DELTA_PNG */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_rgba8_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGBA8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, pData->iRowsamples << 2); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = (pData->iRowsamples << 2); iX > 0; iX--) |
| #else |
| for (iX = 0; iX < (pData->iRowsamples << 2); iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0xFF); |
| |
| pOutrow++; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_DELTA_PNG |
| mng_retcode mng_delta_rgba8_rgb8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGB8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| |
| pOutrow += 4; |
| pWorkrow += 3; |
| } |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow ) & 0xFF); |
| *(pOutrow+1) = (mng_uint8)(((mng_uint16)*(pOutrow+1) + |
| (mng_uint16)*(pWorkrow+1)) & 0xFF); |
| *(pOutrow+2) = (mng_uint8)(((mng_uint16)*(pOutrow+2) + |
| (mng_uint16)*(pWorkrow+2)) & 0xFF); |
| |
| pOutrow += 4; |
| pWorkrow += 3; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_delta_rgba8_a8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_A8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize) + 3; |
| |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = *pWorkrow; |
| |
| pOutrow += 4; |
| pWorkrow++; |
| } |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(((mng_uint16)*pOutrow + |
| (mng_uint16)*pWorkrow) & 0xFF); |
| |
| pOutrow += 4; |
| pWorkrow++; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA8_A8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_DELTA_PNG */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_rgba16_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGBA16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if ((pData->iDeltatype == MNG_DELTATYPE_REPLACE ) || |
| (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELREPLACE) ) |
| { |
| MNG_COPY (pOutrow, pWorkrow, (pData->iRowsamples << 3)); |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKPIXELADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + |
| mng_get_uint16 (pWorkrow )) & 0xFFFF)); |
| mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + |
| mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); |
| mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + |
| mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); |
| mng_put_uint16 (pOutrow+6, (mng_uint16)((mng_get_uint16 (pOutrow+6) + |
| mng_get_uint16 (pWorkrow+6)) & 0xFFFF)); |
| |
| pOutrow += 8; |
| pWorkrow += 8; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_DELTA_PNG |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_rgba16_rgb16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGB16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow, mng_get_uint16 (pWorkrow )); |
| mng_put_uint16 (pOutrow+2, mng_get_uint16 (pWorkrow+2)); |
| mng_put_uint16 (pOutrow+4, mng_get_uint16 (pWorkrow+4)); |
| |
| pOutrow += 8; |
| pWorkrow += 6; |
| } |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKCOLORADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow, (mng_uint16)((mng_get_uint16 (pOutrow ) + |
| mng_get_uint16 (pWorkrow )) & 0xFFFF)); |
| mng_put_uint16 (pOutrow+2, (mng_uint16)((mng_get_uint16 (pOutrow+2) + |
| mng_get_uint16 (pWorkrow+2)) & 0xFFFF)); |
| mng_put_uint16 (pOutrow+4, (mng_uint16)((mng_get_uint16 (pOutrow+4) + |
| mng_get_uint16 (pWorkrow+4)) & 0xFFFF)); |
| |
| pOutrow += 8; |
| pWorkrow += 6; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_delta_rgba16_a16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_A16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAREPLACE) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow+6, mng_get_uint16 (pWorkrow)); |
| |
| pOutrow += 8; |
| pWorkrow += 2; |
| } |
| } |
| else |
| if (pData->iDeltatype == MNG_DELTATYPE_BLOCKALPHAADD) |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| mng_put_uint16 (pOutrow+6, (mng_uint16)((mng_get_uint16 (pOutrow+6) + |
| mng_get_uint16 (pWorkrow)) & 0xFFFF)); |
| |
| pOutrow += 8; |
| pWorkrow += 2; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DELTA_RGBA16_A16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| #endif /* MNG_NO_DELTA_PNG */ |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Delta-image row routines - scale the delta to bitdepth of target * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_DELTA_PNG |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_scale_g1_g2 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G1_G2, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow << 1); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G1_G2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g1_g4 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G1_G4, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow << 3); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G1_G4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g1_g8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G1_G8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow << 7); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G1_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_g1_g16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G1_G16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pWorkrow + (pData->iRowsamples - 1); |
| pOutrow = pOutrow + ((pData->iRowsamples - 1) << 1); |
| /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + pData->iRowsamples - 1); */ |
| /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 1)); */ |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *(pOutrow+1) = 0; |
| *pOutrow = (mng_uint8)(*pWorkrow << 7); |
| |
| pWorkrow--; |
| pOutrow -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G1_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g2_g4 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G2_G4, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow << 2); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G2_G4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g2_g8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G2_G8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow << 6); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G2_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_g2_g16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G2_G16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pWorkrow + (pData->iRowsamples - 1); |
| pOutrow = pOutrow + ((pData->iRowsamples - 1) << 1); |
| /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + pData->iRowsamples - 1); */ |
| /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 1)); */ |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *(pOutrow+1) = 0; |
| *pOutrow = (mng_uint8)(*pWorkrow << 6); |
| |
| pWorkrow--; |
| pOutrow -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G2_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g4_g8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G4_G8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow << 4); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G4_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_g4_g16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G4_G16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pWorkrow + (pData->iRowsamples - 1); |
| pOutrow = pOutrow + ((pData->iRowsamples - 1) << 1); |
| /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + pData->iRowsamples - 1); */ |
| /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 1)); */ |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *(pOutrow+1) = 0; |
| *pOutrow = (mng_uint8)(*pWorkrow << 4); |
| |
| pWorkrow--; |
| pOutrow -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G4_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_g8_g16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G8_G16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pWorkrow + (pData->iRowsamples - 1); |
| pOutrow = pOutrow + ((pData->iRowsamples - 1) << 1); |
| /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + pData->iRowsamples - 1); */ |
| /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 1)); */ |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *(pOutrow+1) = 0; |
| *pOutrow = *pWorkrow; |
| |
| pWorkrow--; |
| pOutrow -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G8_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_ga8_ga16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_GA8_GA16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pWorkrow + ((pData->iRowsamples - 1) << 1); |
| pOutrow = pOutrow + ((pData->iRowsamples - 1) << 2); |
| /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + ((pData->iRowsamples - 1) << 1)); */ |
| /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 2)); */ |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *(pOutrow+3) = 0; |
| *(pOutrow+2) = *(pWorkrow+1); |
| *(pOutrow+1) = 0; |
| *pOutrow = *pWorkrow; |
| |
| pWorkrow -= 2; |
| pOutrow -= 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_GA8_GA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_rgb8_rgb16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_RGB8_RGB16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pWorkrow + (3 * (pData->iRowsamples - 1)); |
| pOutrow = pOutrow + (6 * (pData->iRowsamples - 1)); |
| /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + 3 * (pData->iRowsamples - 1)); */ |
| /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + 6 * (pData->iRowsamples - 1)); */ |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *(pOutrow+5) = 0; |
| *(pOutrow+4) = *(pWorkrow+2); |
| *(pOutrow+3) = 0; |
| *(pOutrow+2) = *(pWorkrow+1); |
| *(pOutrow+1) = 0; |
| *pOutrow = *pWorkrow; |
| |
| pWorkrow -= 3; |
| pOutrow -= 6; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_RGB8_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_rgba8_rgba16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_RGBA8_RGBA16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pWorkrow + ((pData->iRowsamples - 1) << 2); |
| pOutrow = pOutrow + ((pData->iRowsamples - 1) << 3); |
| /* pWorkrow = (mng_uint8p)((mng_uint32)pWorkrow + ((pData->iRowsamples - 1) << 2)); */ |
| /* pOutrow = (mng_uint8p)((mng_uint32)pOutrow + ((pData->iRowsamples - 1) << 3)); */ |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *(pOutrow+7) = 0; |
| *(pOutrow+6) = *(pWorkrow+3); |
| *(pOutrow+5) = 0; |
| *(pOutrow+4) = *(pWorkrow+2); |
| *(pOutrow+3) = 0; |
| *(pOutrow+2) = *(pWorkrow+1); |
| *(pOutrow+1) = 0; |
| *pOutrow = *pWorkrow; |
| |
| pWorkrow -= 4; |
| pOutrow -= 8; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_RGBA8_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_scale_g2_g1 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G2_G1, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow >> 1); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G2_G1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g4_g1 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G4_G1, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow >> 3); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G4_G1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g8_g1 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G8_G1, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow >> 7); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G8_G1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_g16_g1 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G16_G1, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 15); |
| pOutrow++; |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G16_G1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g4_g2 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G4_G2, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow >> 2); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G4_G2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g8_g2 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G8_G2, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow >> 6); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G8_G2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_g16_g2 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G16_G2, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 14); |
| pOutrow++; |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G16_G2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g8_g4 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G8_G4, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pWorkrow = (mng_uint8)(*pWorkrow >> 4); |
| pWorkrow++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G8_G4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_scale_g16_g4 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G16_G4, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 12); |
| pOutrow++; |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G16_G4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| #endif /* NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_g16_g8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G16_G8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_G16_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_ga16_ga8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_GA16_GA8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_GA16_GA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_rgb16_rgb8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_RGB16_RGB8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_RGB16_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_scale_rgba16_rgba8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow = pData->pRGBArow; |
| mng_uint8p pOutrow = pData->pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_RGBA16_RGBA8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| *pOutrow = (mng_uint8)(mng_get_uint16 (pWorkrow) >> 8); |
| pOutrow++; |
| pWorkrow += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_SCALE_RGBA16_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Delta-image bit routines - promote bit_depth * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_uint8 mng_promote_replicate_1_2 (mng_uint8 iB) |
| { |
| return (mng_uint8)((iB << 1) | iB); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_replicate_1_4 (mng_uint8 iB) |
| { |
| iB = (mng_uint8)((iB << 1) + iB); |
| return (mng_uint8)((iB << 2) + iB); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_replicate_1_8 (mng_uint8 iB) |
| { |
| iB = (mng_uint8)((iB << 1) + iB); |
| iB = (mng_uint8)((iB << 2) + iB); |
| return (mng_uint8)((iB << 4) + iB); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_uint16 mng_promote_replicate_1_16 (mng_uint8 iB) |
| { |
| iB = (mng_uint8)((iB << 1) + iB); |
| iB = (mng_uint8)((iB << 2) + iB); |
| iB = (mng_uint8)((iB << 4) + iB); |
| return (mng_uint16)(((mng_uint16)iB << 8) + (mng_uint16)iB); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_replicate_2_4 (mng_uint8 iB) |
| { |
| return (mng_uint8)((iB << 2) + iB); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_replicate_2_8 (mng_uint8 iB) |
| { |
| iB = (mng_uint8)((iB << 2) + iB); |
| return (mng_uint8)((iB << 4) + iB); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_uint16 mng_promote_replicate_2_16 (mng_uint8 iB) |
| { |
| iB = (mng_uint8)((iB << 2) + iB); |
| iB = (mng_uint8)((iB << 4) + iB); |
| return (mng_uint16)(((mng_uint16)iB << 8) + (mng_uint16)iB); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_replicate_4_8 (mng_uint8 iB) |
| { |
| return (mng_uint8)((iB << 4) + iB); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_uint16 mng_promote_replicate_4_16 (mng_uint8 iB) |
| { |
| iB = (mng_uint8)((iB << 4) + iB); |
| return (mng_uint16)(((mng_uint16)iB << 8) + (mng_uint16)iB); |
| } |
| #endif |
| #endif /* NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_uint16 mng_promote_replicate_8_16 (mng_uint8 iB) |
| { |
| return (mng_uint16)(((mng_uint16)iB << 8) + (mng_uint16)iB); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #if !defined(MNG_NO_DELTA_PNG) |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_uint8 mng_promote_zerofill_1_2 (mng_uint8 iB) |
| { |
| return (mng_uint8)(iB << 1); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_zerofill_1_4 (mng_uint8 iB) |
| { |
| return (mng_uint8)(iB << 3); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_zerofill_1_8 (mng_uint8 iB) |
| { |
| return (mng_uint8)(iB << 7); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_uint16 mng_promote_zerofill_1_16 (mng_uint8 iB) |
| { |
| return (mng_uint16)((mng_uint16)iB << 15); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_zerofill_2_4 (mng_uint8 iB) |
| { |
| return (mng_uint8)(iB << 2); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_zerofill_2_8 (mng_uint8 iB) |
| { |
| return (mng_uint8)(iB << 6); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_uint16 mng_promote_zerofill_2_16 (mng_uint8 iB) |
| { |
| return (mng_uint16)((mng_uint16)iB << 14); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_uint8 mng_promote_zerofill_4_8 (mng_uint8 iB) |
| { |
| return (mng_uint8)(iB << 4); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_uint16 mng_promote_zerofill_4_16 (mng_uint8 iB) |
| { |
| return (mng_uint16)((mng_uint16)iB << 12); |
| } |
| #endif |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_uint16 mng_promote_zerofill_8_16 (mng_uint8 iB) |
| { |
| return (mng_uint16)((mng_uint16)iB << 8); |
| } |
| #endif |
| #endif /* MNG_NO_DELTA_PNG */ |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Delta-image row routines - promote color_type * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #if !defined(MNG_NO_DELTA_PNG) || !defined(MNG_SKIPCHUNK_PAST) || !defined(MNG_SKIPCHUNK_MAGN) |
| mng_retcode mng_promote_g8_g8 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_G8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| if (pData->fPromBitdepth) /* bitdepth promoted ? */ |
| iB = ((mng_bitdepth_8)pData->fPromBitdepth) (iB); |
| *pDstline = iB; |
| |
| pSrcline++; |
| pDstline++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_g8_g16 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_G16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iW = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); |
| |
| *pDstline = (mng_uint8)(iW >> 8); |
| *(pDstline+1) = (mng_uint8)(iW && 0xFF); |
| |
| pSrcline++; |
| pDstline += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_g16_g16 (mng_datap pData) |
| { |
| mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; |
| mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; |
| mng_uint32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G16_G16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| *pDstline = *pSrcline; |
| pSrcline++; |
| pDstline++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G16_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_g8_ga8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_GA8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || ((mng_uint16)iB != pBuf->iTRNSgray)) |
| *(pDstline+1) = 0xFF; |
| |
| if (pData->fPromBitdepth) /* bitdepth promoted ? */ |
| iB = ((mng_bitdepth_8)pData->fPromBitdepth) (iB); |
| |
| *pDstline = iB; |
| |
| pSrcline++; |
| pDstline += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_GA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_g8_ga16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_GA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || ((mng_uint16)iB != pBuf->iTRNSgray)) |
| { |
| *(pDstline+2) = 0xFF; |
| *(pDstline+3) = 0xFF; |
| } |
| |
| iW = ((mng_bitdepth_16)pData->fPromBitdepth) (iB); |
| |
| *pDstline = (mng_uint8)(iW >> 8); |
| *(pDstline+1) = (mng_uint8)(iW && 0xFF); |
| |
| pSrcline++; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_GA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_g16_ga16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; |
| mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G16_GA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iW = *pSrcline; |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || ((mng_uint16)iW != pBuf->iTRNSgray)) |
| *(pDstline+1) = 0xFFFF; |
| |
| *pDstline = iW; |
| |
| pSrcline++; |
| pDstline += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G16_GA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_g8_rgb8 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGB8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| |
| if (pData->fPromBitdepth) /* bitdepth promoted ? */ |
| iB = ((mng_bitdepth_8)pData->fPromBitdepth) (iB); |
| |
| *pDstline = iB; |
| *(pDstline+1) = iB; |
| *(pDstline+2) = iB; |
| |
| pSrcline++; |
| pDstline += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_g8_rgb16 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGB16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| iW = ((mng_bitdepth_16)pData->fPromBitdepth) (iB); |
| |
| iB = (mng_uint8)(iW >> 8); |
| *pDstline = iB; |
| *(pDstline+2) = iB; |
| *(pDstline+4) = iB; |
| iB = (mng_uint8)(iW && 0xFF); |
| *(pDstline+1) = iB; |
| *(pDstline+3) = iB; |
| *(pDstline+5) = iB; |
| |
| pSrcline++; |
| pDstline += 6; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_g16_rgb16 (mng_datap pData) |
| { |
| mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; |
| mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G16_RGB16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iW = *pSrcline; |
| |
| *pDstline = iW; |
| *(pDstline+1) = iW; |
| *(pDstline+2) = iW; |
| |
| pSrcline++; |
| pDstline += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G16_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_g8_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGBA8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || ((mng_uint16)iB != pBuf->iTRNSgray)) |
| *(pDstline+3) = 0xFF; |
| |
| if (pData->fPromBitdepth) /* bitdepth promoted ? */ |
| iB = ((mng_bitdepth_8)pData->fPromBitdepth) (iB); |
| |
| *pDstline = iB; |
| *(pDstline+1) = iB; |
| *(pDstline+2) = iB; |
| |
| pSrcline++; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_g8_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGBA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || ((mng_uint16)iB != pBuf->iTRNSgray)) |
| { |
| *(pDstline+6) = 0xFF; |
| *(pDstline+7) = 0xFF; |
| } |
| |
| iW = ((mng_bitdepth_16)pData->fPromBitdepth) (iB); |
| |
| iB = (mng_uint8)(iW >> 8); |
| *pDstline = iB; |
| *(pDstline+2) = iB; |
| *(pDstline+4) = iB; |
| iB = (mng_uint8)(iW && 0xFF); |
| *(pDstline+1) = iB; |
| *(pDstline+3) = iB; |
| *(pDstline+5) = iB;; |
| |
| pSrcline++; |
| pDstline += 8; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G8_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_g16_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; |
| mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G16_RGBA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iW = *pSrcline; |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || (iW != pBuf->iTRNSgray)) |
| *(pDstline+3) = 0xFFFF; |
| |
| *pDstline = iW; |
| *(pDstline+1) = iW; |
| *(pDstline+2) = iW; |
| |
| pSrcline++; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_G16_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_ga8_ga16 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iW; |
| mng_uint16 iA; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_GA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iW = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); |
| iA = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+1)); |
| |
| *pDstline = (mng_uint8)(iW >> 8); |
| *(pDstline+1) = (mng_uint8)(iW && 0xFF); |
| *(pDstline+2) = (mng_uint8)(iA >> 8); |
| *(pDstline+3) = (mng_uint8)(iA && 0xFF); |
| |
| pSrcline += 2; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_GA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_ga8_rgba8 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| mng_uint8 iA; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_RGBA8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| iA = *(pSrcline+1); |
| |
| *pDstline = iB; |
| *(pDstline+1) = iB; |
| *(pDstline+2) = iB; |
| *(pDstline+3) = iA; |
| |
| pSrcline += 2; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_ga8_rgba16 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| mng_uint16 iW; |
| mng_uint16 iA; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_RGBA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iW = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); |
| iA = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+1)); |
| |
| iB = (mng_uint8)(iW >> 8); |
| *pDstline = iB; |
| *(pDstline+2) = iB; |
| *(pDstline+4) = iB; |
| iB = (mng_uint8)(iW && 0xFF); |
| *(pDstline+1) = iB; |
| *(pDstline+3) = iB; |
| *(pDstline+5) = iB; |
| *(pDstline+6) = (mng_uint8)(iA >> 8); |
| *(pDstline+7) = (mng_uint8)(iA && 0xFF); |
| |
| pSrcline += 2; |
| pDstline += 8; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_GA8_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_ga16_rgba16 (mng_datap pData) |
| { |
| mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; |
| mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iW; |
| mng_uint16 iA; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_GA16_RGBA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iW = *pSrcline; |
| iA = *(pSrcline+1); |
| |
| *pDstline = iW; |
| *(pDstline+1) = iW; |
| *(pDstline+2) = iW; |
| *(pDstline+3) = iA; |
| |
| pSrcline += 2; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_GA16_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_rgb8_rgb16 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iR; |
| mng_uint16 iG; |
| mng_uint16 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGB16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iR = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); |
| iG = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+1)); |
| iB = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+2)); |
| |
| *pDstline = (mng_uint8)(iR >> 8); |
| *(pDstline+1) = (mng_uint8)(iR && 0xFF); |
| *(pDstline+2) = (mng_uint8)(iG >> 8); |
| *(pDstline+3) = (mng_uint8)(iG && 0xFF); |
| *(pDstline+4) = (mng_uint8)(iB >> 8); |
| *(pDstline+5) = (mng_uint8)(iB && 0xFF); |
| |
| pSrcline += 3; |
| pDstline += 6; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_rgb8_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iR; |
| mng_uint8 iG; |
| mng_uint8 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGBA8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iR = *pSrcline; |
| iG = *(pSrcline+1); |
| iB = *(pSrcline+2); |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || ((mng_uint16)iR != pBuf->iTRNSred) || |
| ((mng_uint16)iG != pBuf->iTRNSgreen) || ((mng_uint16)iB != pBuf->iTRNSblue)) |
| *(pDstline+3) = 0xFF; |
| |
| *pDstline = iR; |
| *(pDstline+1) = iG; |
| *(pDstline+2) = iB; |
| |
| pSrcline += 3; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_rgb8_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iR; |
| mng_uint8 iG; |
| mng_uint8 iB; |
| mng_uint16 iRw; |
| mng_uint16 iGw; |
| mng_uint16 iBw; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGBA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iR = *pSrcline; |
| iG = *(pSrcline+1); |
| iB = *(pSrcline+2); |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || ((mng_uint16)iR != pBuf->iTRNSred) || |
| ((mng_uint16)iG != pBuf->iTRNSgreen) || ((mng_uint16)iB != pBuf->iTRNSblue)) |
| { |
| *(pDstline+6) = 0xFF; |
| *(pDstline+7) = 0xFF; |
| } |
| |
| iRw = ((mng_bitdepth_16)pData->fPromBitdepth) (iR); |
| iGw = ((mng_bitdepth_16)pData->fPromBitdepth) (iG); |
| iBw = ((mng_bitdepth_16)pData->fPromBitdepth) (iB); |
| |
| *pDstline = (mng_uint8)(iRw >> 8); |
| *(pDstline+1) = (mng_uint8)(iRw && 0xFF); |
| *(pDstline+2) = (mng_uint8)(iGw >> 8); |
| *(pDstline+3) = (mng_uint8)(iGw && 0xFF); |
| *(pDstline+4) = (mng_uint8)(iBw >> 8); |
| *(pDstline+5) = (mng_uint8)(iBw && 0xFF); |
| |
| pSrcline += 3; |
| pDstline += 8; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGB8_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_rgb16_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint16p pSrcline = (mng_uint16p)pData->pPromSrc; |
| mng_uint16p pDstline = (mng_uint16p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iR; |
| mng_uint16 iG; |
| mng_uint16 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGB16_RGBA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iR = *pSrcline; |
| iG = *(pSrcline+1); |
| iB = *(pSrcline+2); |
| /* no cheap transparency ? */ |
| if ((!pBuf->bHasTRNS) || (iR != pBuf->iTRNSred) || |
| (iG != pBuf->iTRNSgreen) || (iB != pBuf->iTRNSblue)) |
| *(pDstline+3) = 0xFFFF; |
| |
| *pDstline = iR; |
| *(pDstline+1) = iG; |
| *(pDstline+2) = iB; |
| |
| pSrcline += 3; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGB16_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_idx8_rgb8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGB8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| |
| if ((mng_uint32)iB < pBuf->iPLTEcount) |
| { |
| *pDstline = pBuf->aPLTEentries [iB].iRed; |
| *(pDstline+1) = pBuf->aPLTEentries [iB].iGreen; |
| *(pDstline+2) = pBuf->aPLTEentries [iB].iBlue; |
| } |
| |
| pSrcline++; |
| pDstline += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_idx8_rgb16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iN; |
| mng_uint16 iR; |
| mng_uint16 iG; |
| mng_uint16 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGB16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iN = *pSrcline; |
| |
| if ((mng_uint32)iN < pBuf->iPLTEcount) |
| { |
| iR = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iRed); |
| iG = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iGreen); |
| iB = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iBlue); |
| *pDstline = (mng_uint8)(iR >> 8); |
| *(pDstline+1) = (mng_uint8)(iR && 0xFF); |
| *(pDstline+2) = (mng_uint8)(iG >> 8); |
| *(pDstline+3) = (mng_uint8)(iG && 0xFF); |
| *(pDstline+4) = (mng_uint8)(iB >> 8); |
| *(pDstline+5) = (mng_uint8)(iB && 0xFF); |
| } |
| |
| pSrcline++; |
| pDstline += 6; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_idx8_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iB; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGBA8, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iB = *pSrcline; |
| |
| if ((mng_uint32)iB < pBuf->iPLTEcount) |
| { |
| *pDstline = pBuf->aPLTEentries [iB].iRed; |
| *(pDstline+1) = pBuf->aPLTEentries [iB].iGreen; |
| *(pDstline+2) = pBuf->aPLTEentries [iB].iBlue; |
| |
| if ((pBuf->bHasTRNS) && ((mng_uint32)iB < pBuf->iTRNScount)) |
| *(pDstline+3) = pBuf->aTRNSentries [iB]; |
| else |
| *(pDstline+3) = 0xFF; |
| } |
| |
| pSrcline++; |
| pDstline += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_promote_idx8_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pPromBuf; |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint8 iN; |
| mng_uint16 iR; |
| mng_uint16 iG; |
| mng_uint16 iB; |
| mng_uint16 iA; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGBA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iN = *pSrcline; |
| |
| if ((mng_uint32)iN < pBuf->iPLTEcount) |
| { |
| iR = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iRed); |
| iG = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iGreen); |
| iB = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aPLTEentries [iN].iBlue); |
| |
| if ((pBuf->bHasTRNS) && ((mng_uint32)iN < pBuf->iTRNScount)) |
| iA = ((mng_bitdepth_16)pData->fPromBitdepth) (pBuf->aTRNSentries [iN]); |
| else |
| iA = 0xFFFF; |
| |
| *pDstline = (mng_uint8)(iR >> 8); |
| *(pDstline+1) = (mng_uint8)(iR && 0xFF); |
| *(pDstline+2) = (mng_uint8)(iG >> 8); |
| *(pDstline+3) = (mng_uint8)(iG && 0xFF); |
| *(pDstline+4) = (mng_uint8)(iB >> 8); |
| *(pDstline+5) = (mng_uint8)(iB && 0xFF); |
| *(pDstline+6) = (mng_uint8)(iA >> 8); |
| *(pDstline+7) = (mng_uint8)(iA && 0xFF); |
| } |
| |
| pSrcline++; |
| pDstline += 8; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_IDX8_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_promote_rgba8_rgba16 (mng_datap pData) |
| { |
| mng_uint8p pSrcline = (mng_uint8p)pData->pPromSrc; |
| mng_uint8p pDstline = (mng_uint8p)pData->pPromDst; |
| mng_uint32 iX; |
| mng_uint16 iR; |
| mng_uint16 iG; |
| mng_uint16 iB; |
| mng_uint16 iA; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGBA8_RGBA16, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPromWidth; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPromWidth; iX++) |
| #endif |
| { |
| iR = ((mng_bitdepth_16)pData->fPromBitdepth) (*pSrcline); |
| iG = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+1)); |
| iB = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+2)); |
| iA = ((mng_bitdepth_16)pData->fPromBitdepth) (*(pSrcline+3)); |
| |
| *pDstline = (mng_uint8)(iR >> 8); |
| *(pDstline+1) = (mng_uint8)(iR && 0xFF); |
| *(pDstline+2) = (mng_uint8)(iG >> 8); |
| *(pDstline+3) = (mng_uint8)(iG && 0xFF); |
| *(pDstline+4) = (mng_uint8)(iB >> 8); |
| *(pDstline+5) = (mng_uint8)(iB && 0xFF); |
| *(pDstline+6) = (mng_uint8)(iA >> 8); |
| *(pDstline+7) = (mng_uint8)(iA && 0xFF); |
| |
| pSrcline += 4; |
| pDstline += 8; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROMOTE_RGBA8_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| #endif /* !defined(MNG_NO_DELTA_PNG) || !defined(MNG_SKIPCHUNK_PAST) || !defined(MNG_SKIPCHUNK_MAGN) */ |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Row processing routines - convert uncompressed data from zlib to * */ |
| /* * managable row-data which serves as input to the color-management * */ |
| /* * routines * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_process_g1 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G1, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| if (pBuf->iTRNSgray) /* white transparent ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* is it white ? */ |
| /* transparent ! */ |
| mng_put_uint32 (pRGBArow, 0x00000000); |
| else /* opaque black */ |
| mng_put_uint32 (pRGBArow, 0x000000FF); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 1; |
| } |
| } |
| else /* black transparent */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* is it white ? */ |
| /* opaque white */ |
| mng_put_uint32 (pRGBArow, 0xFFFFFFFF); |
| else /* transparent */ |
| mng_put_uint32 (pRGBArow, 0x00000000); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 1; |
| } |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else /* no transparency */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| } |
| |
| if (iB & iM) /* is it white ? */ |
| /* opaque white */ |
| mng_put_uint32 (pRGBArow, 0xFFFFFFFF); |
| else /* opaque black */ |
| mng_put_uint32 (pRGBArow, 0x000000FF); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 1; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_g2 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| const mng_uint32 level[4] = { 0x000000FF, 0x555555FF, |
| 0xAAAAAAFF, 0xFFFFFFFF}; |
| #endif |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G2, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| /* determine gray level */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| |
| if (iQ == pBuf->iTRNSgray) /* transparent ? */ |
| mng_put_uint32 (pRGBArow, 0x00000000); |
| else |
| { |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| mng_put_uint32 (pRGBArow, level[iQ]); |
| #else |
| switch (iQ) /* determine the gray level */ |
| { |
| case 0x03 : { mng_put_uint32 (pRGBArow, 0xFFFFFFFF); break; } |
| case 0x02 : { mng_put_uint32 (pRGBArow, 0xAAAAAAFF); break; } |
| case 0x01 : { mng_put_uint32 (pRGBArow, 0x555555FF); break; } |
| default : { mng_put_uint32 (pRGBArow, 0x000000FF); } |
| } |
| #endif |
| } |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_SWITCH |
| mng_put_uint32 (pRGBArow, level[((iB & iM) >> iS)] ); |
| #else |
| switch ((iB & iM) >> iS) /* determine the gray level */ |
| { |
| case 0x03 : { mng_put_uint32 (pRGBArow, 0xFFFFFFFF); break; } |
| case 0x02 : { mng_put_uint32 (pRGBArow, 0xAAAAAAFF); break; } |
| case 0x01 : { mng_put_uint32 (pRGBArow, 0x555555FF); break; } |
| default : { mng_put_uint32 (pRGBArow, 0x000000FF); } |
| } |
| #endif |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_g4 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G4, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the gray level */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| |
| if (iQ == pBuf->iTRNSgray) /* transparent ? */ |
| { |
| *pRGBArow = 0; /* put in intermediate row */ |
| *(pRGBArow+1) = 0; |
| *(pRGBArow+2) = 0; |
| *(pRGBArow+3) = 0; |
| } |
| else |
| { /* expand to 8-bit by replication */ |
| iQ = (mng_uint8)(iQ + (iQ << 4)); |
| |
| *pRGBArow = iQ; /* put in intermediate row */ |
| *(pRGBArow+1) = iQ; |
| *(pRGBArow+2) = iQ; |
| *(pRGBArow+3) = 0xFF; |
| } |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the gray level */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| iQ = (mng_uint8)(iQ + (iQ << 4));/* expand to 8-bit by replication */ |
| |
| *pRGBArow = iQ; /* put in intermediate row */ |
| *(pRGBArow+1) = iQ; |
| *(pRGBArow+2) = iQ; |
| *(pRGBArow+3) = 0xFF; |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_g8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G8, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| |
| if (iB == pBuf->iTRNSgray) /* transparent ? */ |
| { |
| *pRGBArow = 0; /* put in intermediate row */ |
| *(pRGBArow+1) = 0; |
| *(pRGBArow+2) = 0; |
| *(pRGBArow+3) = 0; |
| } |
| else |
| { |
| *pRGBArow = iB; /* put in intermediate row */ |
| *(pRGBArow+1) = iB; |
| *(pRGBArow+2) = iB; |
| *(pRGBArow+3) = 0xFF; |
| } |
| |
| pRGBArow += 4; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| |
| *pRGBArow = iB; /* put in intermediate row */ |
| *(pRGBArow+1) = iB; |
| *(pRGBArow+2) = iB; |
| *(pRGBArow+3) = 0xFF; |
| |
| pRGBArow += 4; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_process_g16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint16 iW; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G16, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iW = mng_get_uint16 (pWorkrow); /* get input */ |
| |
| if (iW == pBuf->iTRNSgray) /* transparent ? */ |
| { /* put in intermediate row */ |
| mng_put_uint16 (pRGBArow, 0); |
| mng_put_uint16 (pRGBArow+2, 0); |
| mng_put_uint16 (pRGBArow+4, 0); |
| mng_put_uint16 (pRGBArow+6, 0); |
| } |
| else |
| { /* put in intermediate row */ |
| mng_put_uint16 (pRGBArow, iW); |
| mng_put_uint16 (pRGBArow+2, iW); |
| mng_put_uint16 (pRGBArow+4, iW); |
| mng_put_uint16 (pRGBArow+6, 0xFFFF); |
| } |
| |
| pRGBArow += 8; /* next pixel */ |
| pWorkrow += 2; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iW = mng_get_uint16 (pWorkrow); /* get input */ |
| |
| mng_put_uint16 (pRGBArow, iW); /* and put in intermediate row */ |
| mng_put_uint16 (pRGBArow+2, iW); |
| mng_put_uint16 (pRGBArow+4, iW); |
| mng_put_uint16 (pRGBArow+6, 0xFFFF); |
| |
| pRGBArow += 8; /* next pixel */ |
| pWorkrow += 2; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_G16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_rgb8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iR, iG, iB; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_RGB8, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iR = *pWorkrow; /* get the RGB values */ |
| iG = *(pWorkrow+1); |
| iB = *(pWorkrow+2); |
| /* transparent ? */ |
| if ((iR == pBuf->iTRNSred) && (iG == pBuf->iTRNSgreen) && |
| (iB == pBuf->iTRNSblue)) |
| { |
| *pRGBArow = 0; /* this pixel is transparent ! */ |
| *(pRGBArow+1) = 0; |
| *(pRGBArow+2) = 0; |
| *(pRGBArow+3) = 0; |
| } |
| else |
| { |
| *pRGBArow = iR; /* copy the RGB values */ |
| *(pRGBArow+1) = iG; |
| *(pRGBArow+2) = iB; |
| *(pRGBArow+3) = 0xFF; /* this one isn't transparent */ |
| } |
| |
| pWorkrow += 3; /* next pixel */ |
| pRGBArow += 4; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pRGBArow = *pWorkrow; /* copy the RGB bytes */ |
| *(pRGBArow+1) = *(pWorkrow+1); |
| *(pRGBArow+2) = *(pWorkrow+2); |
| *(pRGBArow+3) = 0xFF; /* no alpha; so always fully opaque */ |
| |
| pWorkrow += 3; /* next pixel */ |
| pRGBArow += 4; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_RGB8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_process_rgb16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint16 iR, iG, iB; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_RGB16, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iR = mng_get_uint16 (pWorkrow); /* get the RGB values */ |
| iG = mng_get_uint16 (pWorkrow+2); |
| iB = mng_get_uint16 (pWorkrow+4); |
| /* transparent ? */ |
| if ((iR == pBuf->iTRNSred) && (iG == pBuf->iTRNSgreen) && |
| (iB == pBuf->iTRNSblue)) |
| { /* transparent then */ |
| mng_put_uint16 (pRGBArow, 0); |
| mng_put_uint16 (pRGBArow+2, 0); |
| mng_put_uint16 (pRGBArow+4, 0); |
| mng_put_uint16 (pRGBArow+6, 0); |
| } |
| else |
| { /* put in intermediate row */ |
| mng_put_uint16 (pRGBArow, iR); |
| mng_put_uint16 (pRGBArow+2, iG); |
| mng_put_uint16 (pRGBArow+4, iB); |
| mng_put_uint16 (pRGBArow+6, 0xFFFF); |
| } |
| |
| pWorkrow += 6; /* next pixel */ |
| pRGBArow += 8; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* copy the RGB values */ |
| mng_put_uint16 (pRGBArow, mng_get_uint16 (pWorkrow )); |
| mng_put_uint16 (pRGBArow+2, mng_get_uint16 (pWorkrow+2)); |
| mng_put_uint16 (pRGBArow+4, mng_get_uint16 (pWorkrow+4)); |
| mng_put_uint16 (pRGBArow+6, 0xFFFF); |
| |
| pWorkrow += 6; /* next pixel */ |
| pRGBArow += 8; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_RGB16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_process_idx1 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_IDX1, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| iS = 7; |
| } |
| /* get the index */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| /* index valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| *pRGBArow = pBuf->aPLTEentries [iQ].iRed; |
| *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; |
| *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; |
| /* transparency for this index ? */ |
| if ((mng_uint32)iQ < pBuf->iTRNScount) |
| *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; |
| else |
| *(pRGBArow+3) = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 1; |
| iS -= 1; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0x80; |
| iS = 7; |
| } |
| /* get the index */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| /* index valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| *pRGBArow = pBuf->aPLTEentries [iQ].iRed; |
| *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; |
| *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; |
| *(pRGBArow+3) = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 1; |
| iS -= 1; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_IDX1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_idx2 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_IDX2, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| /* get the index */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| /* index valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| *pRGBArow = pBuf->aPLTEentries [iQ].iRed; |
| *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; |
| *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; |
| /* transparency for this index ? */ |
| if ((mng_uint32)iQ < pBuf->iTRNScount) |
| *(pRGBArow+3) = pBuf->aTRNSentries [iQ]; |
| else |
| *(pRGBArow+3) = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = *pWorkrow; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xC0; |
| iS = 6; |
| } |
| /* get the index */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| /* index valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| *pRGBArow = pBuf->aPLTEentries [iQ].iRed; |
| *(pRGBArow+1) = pBuf->aPLTEentries [iQ].iGreen; |
| *(pRGBArow+2) = pBuf->aPLTEentries [iQ].iBlue; |
| *(pRGBArow+3) = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 2; |
| iS -= 2; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_IDX2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_idx4 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iB; |
| mng_uint8 iM; |
| mng_uint32 iS; |
| mng_uint8 iQ; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_IDX4, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| iM = 0; /* start at pixel 0 */ |
| iB = 0; |
| iS = 0; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = pWorkrow [0]; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the index */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| /* index valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; |
| pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; |
| pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; |
| /* transparency for this index ? */ |
| if ((mng_uint32)iQ < pBuf->iTRNScount) |
| pRGBArow [3] = pBuf->aTRNSentries [iQ]; |
| else |
| pRGBArow [3] = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| if (!iM) /* mask underflow ? */ |
| { |
| iB = pWorkrow [0]; /* get next input-byte */ |
| pWorkrow++; |
| iM = 0xF0; |
| iS = 4; |
| } |
| /* get the index */ |
| iQ = (mng_uint8)((iB & iM) >> iS); |
| /* index valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; |
| pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; |
| pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; |
| pRGBArow [3] = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pRGBArow += 4; /* next pixel */ |
| iM >>= 4; |
| iS -= 4; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_IDX4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_idx8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint8 iQ; |
| mng_imagedatap pBuf = (mng_imagedatap)pData->pStorebuf; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_IDX8, MNG_LC_START); |
| #endif |
| |
| if (!pBuf) /* no object? then use obj 0 */ |
| pBuf = ((mng_imagep)pData->pObjzero)->pImgbuf; |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| |
| if (pBuf->bHasTRNS) /* tRNS encountered ? */ |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iQ = *pWorkrow; /* get input byte */ |
| /* index valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; |
| pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; |
| pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; |
| /* transparency for this index ? */ |
| if ((mng_uint32)iQ < pBuf->iTRNScount) |
| pRGBArow [3] = pBuf->aTRNSentries [iQ]; |
| else |
| pRGBArow [3] = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pRGBArow += 4; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's not fully opaque */ |
| } |
| else |
| { |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iQ = *pWorkrow; /* get input byte */ |
| /* index valid ? */ |
| if ((mng_uint32)iQ < pBuf->iPLTEcount) |
| { /* put in intermediate row */ |
| pRGBArow [0] = pBuf->aPLTEentries [iQ].iRed; |
| pRGBArow [1] = pBuf->aPLTEentries [iQ].iGreen; |
| pRGBArow [2] = pBuf->aPLTEentries [iQ].iBlue; |
| pRGBArow [3] = 0xFF; |
| } |
| else |
| MNG_ERROR (pData, MNG_PLTEINDEXERROR); |
| |
| pRGBArow += 4; /* next pixel */ |
| pWorkrow++; |
| } |
| |
| pData->bIsOpaque = MNG_TRUE; /* it's fully opaque */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_IDX8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_ga8 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_GA8, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| *pRGBArow = *pWorkrow; /* copy the gray value */ |
| *(pRGBArow+1) = *pWorkrow; |
| *(pRGBArow+2) = *pWorkrow; |
| *(pRGBArow+3) = *(pWorkrow+1); /* copy the alpha value */ |
| |
| pWorkrow += 2; /* next pixel */ |
| pRGBArow += 4; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_GA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_process_ga16 (mng_datap pData) |
| { |
| mng_uint8p pWorkrow; |
| mng_uint8p pRGBArow; |
| mng_int32 iX; |
| mng_uint16 iW; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_GA16, MNG_LC_START); |
| #endif |
| /* temporary work pointers */ |
| pWorkrow = pData->pWorkrow + pData->iPixelofs; |
| pRGBArow = pData->pRGBArow; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iW = mng_get_uint16 (pWorkrow); /* copy the gray value */ |
| mng_put_uint16 (pRGBArow, iW); |
| mng_put_uint16 (pRGBArow+2, iW); |
| mng_put_uint16 (pRGBArow+4, iW); |
| /* copy the alpha value */ |
| mng_put_uint16 (pRGBArow+6, mng_get_uint16 (pWorkrow+2)); |
| |
| pWorkrow += 4; /* next pixel */ |
| pRGBArow += 8; |
| } |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_GA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_process_rgba8 (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_RGBA8, MNG_LC_START); |
| #endif |
| /* this is the easiest transform */ |
| MNG_COPY (pData->pRGBArow, pData->pWorkrow + pData->iPixelofs, pData->iRowsize); |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_process_rgba16 (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_RGBA16, MNG_LC_START); |
| #endif |
| /* this is the easiest transform */ |
| MNG_COPY (pData->pRGBArow, pData->pWorkrow + pData->iPixelofs, pData->iRowsize); |
| |
| pData->bIsOpaque = MNG_FALSE; /* it's definitely not fully opaque */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_PROCESS_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Row processing initialization routines - set up the variables needed * */ |
| /* * to process uncompressed row-data * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_INIT |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_init_g1_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G1_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g1; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g1; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g1; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g1; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 7; |
| pData->iSamplediv = 3; |
| pData->iRowsize = (pData->iRowsamples + 7) >> 3; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G1_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_g1_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G1_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g1; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g1; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g1; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g1; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 7; |
| pData->iSamplediv = 3; |
| pData->iRowsize = ((pData->iRowsamples + 7) >> 3); |
| pData->iRowmax = ((pData->iDatawidth + 7) >> 3) + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G1_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_g2_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G2_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g2; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g2; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g2; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g2; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 3; |
| pData->iSamplediv = 2; |
| pData->iRowsize = (pData->iRowsamples + 3) >> 2; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G2_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_g2_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G2_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g2; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g2; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g2; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g2; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 3; |
| pData->iSamplediv = 2; |
| pData->iRowsize = ((pData->iRowsamples + 3) >> 2); |
| pData->iRowmax = ((pData->iDatawidth + 3) >> 2) + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G2_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_g4_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G4_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g4; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g4; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g4; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g4; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 1; |
| pData->iSamplediv = 1; |
| pData->iRowsize = (pData->iRowsamples + 1) >> 1; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G4_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_g4_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G4_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g4; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g4; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g4; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g4; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 1; |
| pData->iSamplediv = 1; |
| pData->iRowsize = ((pData->iRowsamples + 1) >> 1); |
| pData->iRowmax = ((pData->iDatawidth + 1) >> 1) + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G4_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_g8_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G8_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g8; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G8_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_g8_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G8_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g8; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples; |
| pData->iRowmax = pData->iDatawidth + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G8_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_g16_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G16_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g16; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g16; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g16; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g16; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 2; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 1; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 2; |
| pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G16_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_g16_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G16_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_g16; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_g16; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_g16; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g16; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 2; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 1; |
| pData->iRowmax = (pData->iDatawidth << 1) + pData->iPixelofs; |
| pData->iFilterbpp = 2; |
| pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_G16_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_rgb8_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGB8_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_rgb8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_rgb8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_rgb8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_rgb8; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 3; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples * 3; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 3; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGB8_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_rgb8_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGB8_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_rgb8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_rgb8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_rgb8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_rgb8; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 3; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples * 3; |
| pData->iRowmax = (pData->iDatawidth * 3) + pData->iPixelofs; |
| pData->iFilterbpp = 3; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGB8_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_rgb16_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGB16_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_rgb16; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_rgb16; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_rgb16; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_rgb16; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 6; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples * 6; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 6; |
| pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGB16_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_rgb16_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGB16_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_rgb16; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_rgb16; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_rgb16; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_rgb16; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 6; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples * 6; |
| pData->iRowmax = (pData->iDatawidth * 6) + pData->iPixelofs; |
| pData->iFilterbpp = 6; |
| pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGB16_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_init_idx1_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX1_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_idx1; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_idx1; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_idx1; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_idx1; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 7; |
| pData->iSamplediv = 3; |
| pData->iRowsize = (pData->iRowsamples + 7) >> 3; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX1_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_idx1_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX1_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_idx1; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_idx1; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_idx1; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_idx1; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 7; |
| pData->iSamplediv = 3; |
| pData->iRowsize = (pData->iRowsamples + 7) >> 3; |
| pData->iRowmax = ((pData->iDatawidth + 7) >> 3) + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX1_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_idx2_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX2_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_idx2; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_idx2; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_idx2; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_idx2; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 3; |
| pData->iSamplediv = 2; |
| pData->iRowsize = (pData->iRowsamples + 3) >> 2; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX2_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_idx2_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX2_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_idx2; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_idx2; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_idx2; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_idx2; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 3; |
| pData->iSamplediv = 2; |
| pData->iRowsize = (pData->iRowsamples + 3) >> 2; |
| pData->iRowmax = ((pData->iDatawidth + 3) >> 2) + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX2_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_idx4_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX4_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_idx4; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_idx4; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_idx4; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_idx4; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 1; |
| pData->iSamplediv = 1; |
| pData->iRowsize = (pData->iRowsamples + 1) >> 1; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX4_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_idx4_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX4_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_idx4; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_idx4; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_idx4; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_idx4; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 1; |
| pData->iSamplediv = 1; |
| pData->iRowsize = (pData->iRowsamples + 1) >> 1; |
| pData->iRowmax = ((pData->iDatawidth + 1) >> 1) + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX4_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_idx8_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX8_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_idx8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_idx8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_idx8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_idx8; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX8_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_idx8_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX8_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_idx8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_idx8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_idx8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_idx8; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples; |
| pData->iRowmax = pData->iDatawidth + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_IDX8_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_ga8_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_GA8_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_ga8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_ga8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_ga8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_ga8; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 2; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 1; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 2; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_GA8_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_ga8_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_GA8_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_ga8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_ga8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_ga8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_ga8; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 2; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 1; |
| pData->iRowmax = (pData->iDatawidth << 1) + pData->iPixelofs; |
| pData->iFilterbpp = 2; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_GA8_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_ga16_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_GA16_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_ga16; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_ga16; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_ga16; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_ga16; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 4; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 2; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 4; |
| pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_GA16_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_ga16_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_GA16_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_ga16; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_ga16; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_ga16; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_ga16; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 4; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 2; |
| pData->iRowmax = (pData->iDatawidth << 2) + pData->iPixelofs; |
| pData->iFilterbpp = 4; |
| pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_GA16_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_rgba8_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGBA8_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_rgba8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_rgba8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_rgba8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_rgba8; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 4; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 2; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 4; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGBA8_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_rgba8_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGBA8_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_rgba8; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_rgba8; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_rgba8; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_rgba8; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; is 1..7 in specifications */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 4; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 2; |
| pData->iRowmax = (pData->iDatawidth << 2) + pData->iPixelofs; |
| pData->iFilterbpp = 4; |
| pData->bIsRGBA16 = MNG_FALSE; /* intermediate row is 8-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGBA8_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_rgba16_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGBA16_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_rgba16; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_rgba16; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_rgba16; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_rgba16; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 8; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 3; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 8; |
| pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGBA16_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_rgba16_i (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGBA16_I, MNG_LC_START); |
| #endif |
| |
| if (pData->fDisplayrow) |
| pData->fProcessrow = (mng_fptr)mng_process_rgba16; |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { /* immediate delta ? */ |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| pData->fStorerow = (mng_fptr)mng_delta_rgba16; |
| else |
| #endif |
| pData->fStorerow = (mng_fptr)mng_store_rgba16; |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_rgba16; |
| #endif |
| |
| pData->iPass = 0; /* from 0..6; (1..7 in specification) */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> interlace_divider [0]; |
| pData->iSamplemul = 8; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 3; |
| pData->iRowmax = (pData->iDatawidth << 3) + pData->iPixelofs; |
| pData->iFilterbpp = 8; |
| pData->bIsRGBA16 = MNG_TRUE; /* intermediate row is 16-bit deep */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_RGBA16_I, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Row processing initialization routines (JPEG) - set up the variables * */ |
| /* * needed to process uncompressed row-data * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_INCLUDE_JNG |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| mng_retcode mng_init_jpeg_a1_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A1_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { |
| if (pData->iJHDRimgbitdepth == 8) |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a1; break; } |
| case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a1; break; } |
| } |
| } |
| |
| /* TODO: bitdepth 12 & 20 */ |
| |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g1; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 7; |
| pData->iSamplediv = 3; |
| pData->iRowsize = (pData->iRowsamples + 7) >> 3; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A1_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_jpeg_a2_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A2_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { |
| if (pData->iJHDRimgbitdepth == 8) |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a2; break; } |
| case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a2; break; } |
| } |
| } |
| |
| /* TODO: bitdepth 12 & 20 */ |
| |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g2; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 3; |
| pData->iSamplediv = 2; |
| pData->iRowsize = (pData->iRowsamples + 3) >> 2; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A2_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_jpeg_a4_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A4_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { |
| if (pData->iJHDRimgbitdepth == 8) |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a4; break; } |
| case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a4; break; } |
| } |
| } |
| |
| /* TODO: bitdepth 12 & 20 */ |
| |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g4; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 1; |
| pData->iSamplediv = 1; |
| pData->iRowsize = (pData->iRowsamples + 1) >> 1; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A4_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_jpeg_a8_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A8_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { |
| if (pData->iJHDRimgbitdepth == 8) |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a8; break; } |
| case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a8; break; } |
| } |
| } |
| |
| /* TODO: bitdepth 12 & 20 */ |
| |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g8; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 1; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A8_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_init_jpeg_a16_ni (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A16_NI, MNG_LC_START); |
| #endif |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { |
| if (pData->iJHDRimgbitdepth == 8) |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a16; break; } |
| case 14 : { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a16; break; } |
| } |
| } |
| |
| /* TODO: bitdepth 12 & 20 */ |
| |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| pData->fDifferrow = (mng_fptr)mng_differ_g16; |
| #endif |
| |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| pData->iSamplemul = 2; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iRowsize = pData->iRowsamples << 1; |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| pData->iFilterbpp = 2; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_JPEG_A16_NI, MNG_LC_END); |
| #endif |
| |
| return mng_init_rowproc (pData); |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #endif /* MNG_INCLUDE_JNG */ |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_INIT */ |
| |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Generic row processing initialization & cleanup routines * */ |
| /* * - initialize the buffers used by the row processing routines * */ |
| /* * - cleanup the buffers used by the row processing routines * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_init_rowproc (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_ROWPROC, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_INIT |
| if (pData->ePng_imgtype != png_none) |
| { |
| if (pData->fDisplayrow) |
| switch (pData->ePng_imgtype) |
| { |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_g1: |
| pData->fProcessrow = (mng_fptr)mng_process_g1; |
| break; |
| case png_g2: |
| pData->fProcessrow = (mng_fptr)mng_process_g2; |
| break; |
| case png_g4: |
| pData->fProcessrow = (mng_fptr)mng_process_g4; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_g8: |
| pData->fProcessrow = (mng_fptr)mng_process_g8; |
| break; |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_idx1: |
| pData->fProcessrow = (mng_fptr)mng_process_idx1; |
| break; |
| case png_idx2: |
| pData->fProcessrow = (mng_fptr)mng_process_idx2; |
| break; |
| case png_idx4: |
| pData->fProcessrow = (mng_fptr)mng_process_idx4; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_idx8: |
| pData->fProcessrow = (mng_fptr)mng_process_idx8; |
| break; |
| case png_ga8: |
| pData->fProcessrow = (mng_fptr)mng_process_ga8; |
| break; |
| case png_rgb8: |
| pData->fProcessrow = (mng_fptr)mng_process_rgb8; |
| break; |
| case png_rgba8: |
| pData->fProcessrow = (mng_fptr)mng_process_rgba8; |
| break; |
| #ifndef MNG_NO_16BIT_SUPPORT |
| case png_g16: |
| pData->fProcessrow = (mng_fptr)mng_process_g16; |
| break; |
| case png_ga16: |
| pData->fProcessrow = (mng_fptr)mng_process_ga16; |
| break; |
| case png_rgb16: |
| pData->fProcessrow = (mng_fptr)mng_process_rgb16; |
| break; |
| case png_rgba16: |
| pData->fProcessrow = (mng_fptr)mng_process_rgba16; |
| break; |
| #endif |
| default: |
| break; |
| } |
| |
| if (pData->pStoreobj) /* store in object too ? */ |
| { |
| #ifndef MNG_NO_DELTA_PNG |
| if ((pData->bHasDHDR) && (pData->bDeltaimmediate)) |
| switch (pData->ePng_imgtype) |
| { |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_g1: |
| pData->fStorerow = (mng_fptr)mng_delta_g1; |
| break; |
| case png_g2: |
| pData->fStorerow = (mng_fptr)mng_delta_g2; |
| break; |
| case png_g4: |
| pData->fStorerow = (mng_fptr)mng_delta_g4; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_g8: |
| pData->fStorerow = (mng_fptr)mng_delta_g8; |
| break; |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_idx1: |
| pData->fStorerow = (mng_fptr)mng_delta_idx1; |
| break; |
| case png_idx2: |
| pData->fStorerow = (mng_fptr)mng_delta_idx2; |
| break; |
| case png_idx4: |
| pData->fStorerow = (mng_fptr)mng_delta_idx4; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_idx8: |
| pData->fStorerow = (mng_fptr)mng_delta_idx8; |
| break; |
| case png_ga8: |
| pData->fStorerow = (mng_fptr)mng_delta_ga8; |
| break; |
| case png_rgb8: |
| pData->fStorerow = (mng_fptr)mng_delta_rgb8; |
| break; |
| case png_rgba8: |
| pData->fStorerow = (mng_fptr)mng_delta_rgba8; |
| break; |
| #ifndef MNG_NO_16BIT_SUPPORT |
| case png_g16: |
| pData->fStorerow = (mng_fptr)mng_delta_g16; |
| break; |
| case png_ga16: |
| pData->fStorerow = (mng_fptr)mng_delta_ga16; |
| break; |
| case png_rgb16: |
| pData->fStorerow = (mng_fptr)mng_delta_rgb16; |
| break; |
| case png_rgba16: |
| pData->fStorerow = (mng_fptr)mng_delta_rgba16; |
| break; |
| #endif |
| default: |
| break; |
| } |
| else |
| #endif /* MNG_NO_DELTA_PNG */ |
| switch (pData->ePng_imgtype) |
| { |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_g1: |
| pData->fStorerow = (mng_fptr)mng_store_g1; |
| break; |
| case png_g2: |
| pData->fStorerow = (mng_fptr)mng_store_g2; |
| break; |
| case png_g4: |
| pData->fStorerow = (mng_fptr)mng_store_g4; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_g8: |
| pData->fStorerow = (mng_fptr)mng_store_g8; |
| break; |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_idx1: |
| pData->fStorerow = (mng_fptr)mng_store_idx1; |
| break; |
| case png_idx2: |
| pData->fStorerow = (mng_fptr)mng_store_idx2; |
| break; |
| case png_idx4: |
| pData->fStorerow = (mng_fptr)mng_store_idx4; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_idx8: |
| pData->fStorerow = (mng_fptr)mng_store_idx8; |
| break; |
| case png_ga8: |
| pData->fStorerow = (mng_fptr)mng_store_ga8; |
| break; |
| case png_rgb8: |
| pData->fStorerow = (mng_fptr)mng_store_rgb8; |
| break; |
| case png_rgba8: |
| pData->fStorerow = (mng_fptr)mng_store_rgba8; |
| break; |
| #ifndef MNG_NO_16BIT_SUPPORT |
| case png_g16: |
| pData->fStorerow = (mng_fptr)mng_store_g16; |
| break; |
| case png_ga16: |
| pData->fStorerow = (mng_fptr)mng_store_ga16; |
| break; |
| case png_rgb16: |
| pData->fStorerow = (mng_fptr)mng_store_rgb16; |
| break; |
| case png_rgba16: |
| pData->fStorerow = (mng_fptr)mng_store_rgba16; |
| break; |
| #endif |
| |
| #ifdef MNG_INCLUDE_JNG |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_jpeg_a1: |
| /* if (pData->iJHDRimgbitdepth == 8) */ |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a1; break; } |
| case 14 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a1; break; } |
| } |
| } |
| /* TODO: bitdepth 12 & 20 */ |
| break; |
| case png_jpeg_a2: |
| /* if (pData->iJHDRimgbitdepth == 8) */ |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a2; break; } |
| case 14 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a2; break; } |
| } |
| } |
| break; |
| /* TODO: bitdepth 12 & 20 */ |
| case png_jpeg_a4: |
| /* if (pData->iJHDRimgbitdepth == 8) */ |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a4; break; } |
| case 14 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a4; break; } |
| } |
| } |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| /* TODO: bitdepth 12 & 20 */ |
| case png_jpeg_a8: |
| /* if (pData->iJHDRimgbitdepth == 8) */ |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a8; break; } |
| case 14 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a8; break; } |
| } |
| } |
| break; |
| /* TODO: bitdepth 12 & 20 */ |
| #ifndef MNG_NO_16BIT_SUPPORT |
| case png_jpeg_a16: |
| /* if (pData->iJHDRimgbitdepth == 8) */ |
| { |
| switch (pData->iJHDRcolortype) |
| { |
| case 12 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_g8_a16; break; } |
| case 14 : |
| { pData->fStorerow = (mng_fptr)mng_store_jpeg_rgb8_a16; break; } |
| } |
| } |
| break; |
| /* TODO: bitdepth 12 & 20 */ |
| #endif |
| #endif /* MNG_INCLUDE_JNG */ |
| default: |
| break; |
| } |
| } |
| |
| #ifdef FILTER192 /* leveling & differing ? */ |
| if (pData->iFilter == MNG_FILTER_DIFFERING) |
| switch (pData->ePng_imgtype) |
| { |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_g1: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a1: |
| #endif |
| pData->fDifferrow = (mng_fptr)mng_differ_g1; |
| break; |
| case png_g2: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a2: |
| #endif |
| pData->fDifferrow = (mng_fptr)mng_differ_g2; |
| break; |
| case png_g4: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a4: |
| #endif |
| pData->fDifferrow = (mng_fptr)mng_differ_g4; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_g8: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a8: |
| #endif |
| pData->fDifferrow = (mng_fptr)mng_differ_g8; |
| break; |
| case png_rgb8: |
| pData->fDifferrow = (mng_fptr)mng_differ_rgb8; |
| break; |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_idx1: |
| pData->fDifferrow = (mng_fptr)mng_differ_idx1; |
| break; |
| case png_idx2: |
| pData->fDifferrow = (mng_fptr)mng_differ_idx2; |
| break; |
| case png_idx4: |
| pData->fDifferrow = (mng_fptr)mng_differ_idx4; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_idx8: |
| pData->fDifferrow = (mng_fptr)mng_differ_idx8; |
| break; |
| case png_ga8: |
| pData->fDifferrow = (mng_fptr)mng_differ_ga8; |
| break; |
| case png_rgb8: |
| pData->fDifferrow = (mng_fptr)mng_differ_rgb8; |
| break; |
| case png_rgba8: |
| pData->fDifferrow = (mng_fptr)mng_differ_rgba8; |
| break; |
| #ifndef MNG_NO_16BIT_SUPPORT |
| case png_g16: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a16: |
| #endif |
| pData->fDifferrow = (mng_fptr)mng_differ_g16; |
| break; |
| case png_ga16: |
| pData->fDifferrow = (mng_fptr)mng_differ_ga16; |
| break; |
| case png_rgb16: |
| pData->fDifferrow = (mng_fptr)mng_differ_rgb16; |
| break; |
| case png_rgba16: |
| pData->fDifferrow = (mng_fptr)mng_differ_rgba16; |
| break; |
| #endif |
| default: |
| break; |
| } |
| #endif |
| |
| switch (pData->ePng_imgtype) |
| { |
| #ifndef MNG_NO_1_2_4BIT_SUPPORT |
| case png_g1: |
| case png_idx1: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a1: |
| #endif |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 7; |
| pData->iSamplediv = 3; |
| pData->iFilterbpp = 1; |
| break; |
| case png_g2: |
| case png_idx2: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a2: |
| #endif |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 3; |
| pData->iSamplediv = 2; |
| pData->iFilterbpp = 1; |
| break; |
| case png_g4: |
| case png_idx4: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a4: |
| #endif |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 1; |
| pData->iSamplediv = 1; |
| pData->iFilterbpp = 1; |
| break; |
| #endif /* MNG_NO_1_2_4BIT_SUPPORT */ |
| case png_g8: |
| case png_idx8: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a8: |
| #endif |
| pData->iSamplemul = 1; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iFilterbpp = 1; |
| break; |
| case png_ga8: |
| #ifndef MNG_NO_16BIT_SUPPORT |
| case png_g16: |
| #ifdef MNG_INCLUDE_JNG |
| case png_jpeg_a16: |
| #endif |
| #endif |
| pData->iSamplemul = 2; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iFilterbpp = 2; |
| break; |
| case png_rgb8: |
| pData->iSamplemul = 3; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iFilterbpp = 3; |
| break; |
| #ifndef MNG_NO_16BIT_SUPPORT |
| case png_ga16: |
| #endif |
| case png_rgba8: |
| pData->iSamplemul = 4; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iFilterbpp = 4; |
| break; |
| #ifndef MNG_NO_16BIT_SUPPORT |
| case png_rgb16: |
| pData->iSamplemul = 6; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iFilterbpp = 6; |
| break; |
| case png_rgba16: |
| pData->iSamplemul = 8; |
| pData->iSampleofs = 0; |
| pData->iSamplediv = 0; |
| pData->iFilterbpp = 8; |
| break; |
| #endif |
| default: |
| break; |
| } |
| |
| if (pData->iInterlace) /* noninterlaced */ |
| { |
| pData->iPass = 0; /* from 0..6; (1..7 in specification) */ |
| pData->iRow = interlace_row [0]; |
| pData->iRowinc = interlace_rowskip [0]; |
| pData->iCol = interlace_col [0]; |
| pData->iColinc = interlace_colskip [0]; |
| pData->iRowsamples = (pData->iDatawidth + interlace_roundoff [0]) >> |
| interlace_divider [0]; |
| pData->iRowmax = ((pData->iDatawidth * pData->iSamplemul + |
| pData->iSampleofs) >> pData->iSamplediv) + pData->iPixelofs; |
| } |
| else /* interlaced */ |
| { |
| pData->iPass = -1; |
| pData->iRow = 0; |
| pData->iRowinc = 1; |
| pData->iCol = 0; |
| pData->iColinc = 1; |
| pData->iRowsamples = pData->iDatawidth; |
| } |
| if (pData->iSamplediv > 0) |
| pData->iRowsize = (pData->iRowsamples + pData->iSampleofs) >> |
| pData->iSamplediv; |
| else |
| pData->iRowsize = (pData->iRowsamples * pData->iSamplemul); |
| |
| if (!pData->iInterlace) /* noninterlaced */ |
| pData->iRowmax = pData->iRowsize + pData->iPixelofs; |
| |
| #ifdef MNG_NO_16BIT_SUPPORT |
| pData->bIsRGBA16 = MNG_FALSE; |
| #else |
| switch (pData->ePng_imgtype) |
| { |
| case png_g16: |
| case png_ga16: |
| case png_rgb16: |
| case png_rgba16: |
| pData->bIsRGBA16 = MNG_TRUE; |
| break; |
| default: |
| pData->bIsRGBA16 = MNG_FALSE; |
| break; |
| } |
| #endif |
| |
| } |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_INIT */ |
| |
| if (pData->pStoreobj) /* storage object selected ? */ |
| { |
| pData->pStorebuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| /* and so it becomes viewable ! */ |
| ((mng_imagep)pData->pStoreobj)->bViewable = MNG_TRUE; |
| ((mng_imagedatap)pData->pStorebuf)->bViewable = MNG_TRUE; |
| } |
| |
| /* allocate the buffers; the individual init routines have already |
| calculated the required maximum size; except in the case of a JNG |
| without alpha!!! */ |
| if (pData->iRowmax) |
| { |
| #if defined(MNG_NO_16BIT_SUPPORT) || defined (MNG_NO_1_2_4BIT_SUPPORT) |
| mng_uint8 iRowadd = 0; |
| #ifdef MNG_NO_1_2_4BIT_SUPPORT |
| if (pData->iPNGdepth < 8) |
| iRowadd=(pData->iPNGdepth*pData->iRowmax+7)/8; |
| #endif |
| #ifdef MNG_NO_16BIT_SUPPORT |
| if (pData->iPNGdepth > 8) |
| iRowadd=pData->iRowmax; |
| #endif |
| MNG_ALLOC (pData, pData->pWorkrow, pData->iRowmax+iRowadd); |
| MNG_ALLOC (pData, pData->pPrevrow, pData->iRowmax+iRowadd); |
| #else |
| MNG_ALLOC (pData, pData->pWorkrow, pData->iRowmax); |
| MNG_ALLOC (pData, pData->pPrevrow, pData->iRowmax); |
| #endif |
| } |
| |
| /* allocate an RGBA16 row for intermediate processing */ |
| MNG_ALLOC (pData, pData->pRGBArow, (pData->iDatawidth << 3)); |
| |
| #ifndef MNG_NO_CMS |
| if (pData->fDisplayrow) /* display "on-the-fly" ? */ |
| { |
| #if defined(MNG_FULL_CMS) /* determine color-management initialization */ |
| mng_retcode iRetcode = mng_init_full_cms (pData, MNG_TRUE, MNG_TRUE, MNG_FALSE); |
| #elif defined(MNG_GAMMA_ONLY) |
| mng_retcode iRetcode = mng_init_gamma_only (pData, MNG_TRUE, MNG_TRUE, MNG_FALSE); |
| #elif defined(MNG_APP_CMS) |
| mng_retcode iRetcode = mng_init_app_cms (pData, MNG_TRUE, MNG_TRUE, MNG_FALSE); |
| #endif |
| if (iRetcode) /* on error bail out */ |
| return iRetcode; |
| } |
| #endif /* !MNG_NO_CMS */ |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_INIT_ROWPROC, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_next_row (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_NEXT_ROW, MNG_LC_START); |
| #endif |
| |
| pData->iRow += pData->iRowinc; /* increase the row counter */ |
| |
| if (pData->iPass >= 0) /* interlaced ? */ |
| { |
| while ((pData->iPass < 7) && /* went 'outside' the image ? */ |
| ((pData->iRow >= (mng_int32)pData->iDataheight) || |
| (pData->iCol >= (mng_int32)pData->iDatawidth ) )) |
| { |
| pData->iPass++; /* next pass ! */ |
| |
| if (pData->iPass < 7) /* there's only 7 passes ! */ |
| { |
| pData->iRow = interlace_row [pData->iPass]; |
| pData->iRowinc = interlace_rowskip [pData->iPass]; |
| pData->iCol = interlace_col [pData->iPass]; |
| pData->iColinc = interlace_colskip [pData->iPass]; |
| pData->iRowsamples = (pData->iDatawidth - pData->iCol + interlace_roundoff [pData->iPass]) |
| >> interlace_divider [pData->iPass]; |
| |
| if (pData->iSamplemul > 1) /* recalculate row dimension */ |
| pData->iRowsize = pData->iRowsamples * pData->iSamplemul; |
| else |
| if (pData->iSamplediv > 0) |
| pData->iRowsize = (pData->iRowsamples + pData->iSampleofs) >> pData->iSamplediv; |
| else |
| pData->iRowsize = pData->iRowsamples; |
| |
| } |
| |
| if ((pData->iPass < 7) && /* reset previous row to zeroes ? */ |
| (pData->iRow < (mng_int32)pData->iDataheight) && |
| (pData->iCol < (mng_int32)pData->iDatawidth ) ) |
| { /* making sure the filters will work properly! */ |
| mng_int32 iX; |
| mng_uint8p pTemp = pData->pPrevrow; |
| |
| #ifdef MNG_NO_16BIT_SUPPORT |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iPNGmult*pData->iRowsize; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iPNGmult*pData->iRowsize; iX++) |
| #endif |
| #else |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsize; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsize; iX++) |
| #endif |
| #endif |
| { |
| *pTemp = 0; |
| pTemp++; |
| } |
| } |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_NEXT_ROW, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_cleanup_rowproc (mng_datap pData) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_CLEANUP_ROWPROC, MNG_LC_START); |
| #endif |
| |
| #ifdef MNG_INCLUDE_LCMS /* cleanup cms profile/transform */ |
| { |
| mng_retcode iRetcode = mng_clear_cms (pData); |
| if (iRetcode) /* on error bail out */ |
| return iRetcode; |
| } |
| #endif /* MNG_INCLUDE_LCMS */ |
| |
| if (pData->pRGBArow) /* cleanup buffer for intermediate row */ |
| MNG_FREEX (pData, pData->pRGBArow, (pData->iDatawidth << 3)); |
| if (pData->pPrevrow) /* cleanup buffer for previous row */ |
| MNG_FREEX (pData, pData->pPrevrow, pData->iRowmax); |
| if (pData->pWorkrow) /* cleanup buffer for working row */ |
| MNG_FREEX (pData, pData->pWorkrow, pData->iRowmax); |
| |
| pData->pWorkrow = MNG_NULL; /* propogate uninitialized buffers */ |
| pData->pPrevrow = MNG_NULL; |
| pData->pRGBArow = MNG_NULL; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_CLEANUP_ROWPROC, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; /* woohiii */ |
| } |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * Generic row processing routines for JNG * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_INCLUDE_JNG |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_display_jpeg_rows (mng_datap pData) |
| { |
| mng_retcode iRetcode; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_JPEG_ROWS, MNG_LC_START); |
| #endif |
| /* any completed rows ? */ |
| if ((pData->iJPEGrow > pData->iJPEGdisprow) && |
| (pData->iJPEGalpharow > pData->iJPEGdisprow) ) |
| { |
| mng_uint32 iX, iMax; |
| mng_uint32 iSaverow = pData->iRow; /* save alpha decompression row-count */ |
| /* determine the highest complete(!) row */ |
| if (pData->iJPEGrow > pData->iJPEGalpharow) |
| iMax = pData->iJPEGalpharow; |
| else |
| iMax = pData->iJPEGrow; |
| /* display the rows */ |
| for (iX = pData->iJPEGdisprow; iX < iMax; iX++) |
| { |
| pData->iRow = iX; /* make sure we all know which row to handle */ |
| /* makeup an intermediate row from the buffer */ |
| iRetcode = ((mng_retrieverow)pData->fRetrieverow) (pData); |
| /* color-correct it if necessary */ |
| if ((!iRetcode) && (pData->fCorrectrow)) |
| iRetcode = ((mng_correctrow)pData->fCorrectrow) (pData); |
| |
| if (!iRetcode) /* and display it */ |
| { |
| iRetcode = ((mng_displayrow)pData->fDisplayrow) (pData); |
| |
| if (!iRetcode) /* check progressive display refresh */ |
| iRetcode = mng_display_progressive_check (pData); |
| } |
| |
| if (iRetcode) /* on error bail out */ |
| return iRetcode; |
| } |
| |
| pData->iJPEGdisprow = iMax; /* keep track of the last displayed row */ |
| pData->iRow = iSaverow; /* restore alpha decompression row-count */ |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_DISPLAY_JPEG_ROWS, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_next_jpeg_alpharow (mng_datap pData) |
| { |
| mng_retcode iRetcode; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ALPHAROW, MNG_LC_START); |
| #endif |
| |
| pData->iJPEGalpharow++; /* count the row */ |
| |
| if (pData->fDisplayrow) /* display "on-the-fly" ? */ |
| { /* try to display what you can */ |
| iRetcode = mng_display_jpeg_rows (pData); |
| |
| if (iRetcode) /* on error bail out */ |
| return iRetcode; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ALPHAROW, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_next_jpeg_row (mng_datap pData) |
| { |
| mng_retcode iRetcode; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ROW, MNG_LC_START); |
| #endif |
| |
| pData->iJPEGrow++; /* increase the row-counter */ |
| |
| if (pData->fDisplayrow) /* display "on-the-fly" ? */ |
| { /* has alpha channel ? */ |
| if ((pData->iJHDRcolortype == MNG_COLORTYPE_JPEGGRAYA ) || |
| (pData->iJHDRcolortype == MNG_COLORTYPE_JPEGCOLORA) ) |
| { /* try to display what you can */ |
| iRetcode = mng_display_jpeg_rows (pData); |
| } |
| else |
| { /* make sure we all know which row to handle */ |
| pData->iRow = pData->iJPEGrow - 1; |
| /* makeup an intermediate row from the buffer */ |
| iRetcode = ((mng_retrieverow)pData->fRetrieverow) (pData); |
| /* color-correct it if necessary */ |
| if ((!iRetcode) && (pData->fCorrectrow)) |
| iRetcode = ((mng_correctrow)pData->fCorrectrow) (pData); |
| |
| if (!iRetcode) /* and display it */ |
| { |
| iRetcode = ((mng_displayrow)pData->fDisplayrow) (pData); |
| |
| if (!iRetcode) /* check progressive display refresh */ |
| iRetcode = mng_display_progressive_check (pData); |
| } |
| } |
| |
| if (iRetcode) /* on error bail out */ |
| return iRetcode; |
| } |
| |
| /* surpassed last filled row ? */ |
| if (pData->iJPEGrow > pData->iJPEGrgbrow) |
| pData->iJPEGrgbrow = pData->iJPEGrow; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_NEXT_JPEG_ROW, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #endif /* MNG_INCLUDE_JNG */ |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCHUNK_MAGN |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_MAGN |
| #ifndef MNG_NO_GRAY_SUPPORT |
| mng_retcode mng_magnify_g8_x1 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX, iS, iM; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X1, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| iM = iML; |
| else |
| if (iX == (iWidth - 1)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| |
| for (iS = 1; iS < iM; iS++) /* fill interval */ |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| } |
| |
| pTempsrc1++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_g8_x2 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 1; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { /* is it same as first ? */ |
| if (*pTempsrc1 == *pTempsrc2) |
| { |
| for (iS = 1; iS < iM; iS++) /* then just repeat the first */ |
| { |
| *pTempdst = *pTempsrc1; |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) /* calculate the distances */ |
| { |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2)) + (mng_int32)(*pTempsrc1) ); |
| pTempdst++; |
| } |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_g8_x3 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X3, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 1; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { /* is it same as first ? */ |
| if (*pTempsrc1 == *pTempsrc2) |
| { |
| for (iS = 1; iS < iM; iS++) /* then just repeat the first */ |
| { |
| *pTempdst = *pTempsrc1; |
| pTempdst++; |
| } |
| } |
| else |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* replicate first half */ |
| { |
| *pTempdst = *pTempsrc1; |
| pTempdst++; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* replicate second half */ |
| { |
| *pTempdst = *pTempsrc2; |
| pTempdst++; |
| } |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_X3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_GRAY_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb8_x1 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX, iS, iM; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X1, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| iM = iML; |
| else |
| if (iX == (iWidth - 1)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| |
| for (iS = 1; iS < iM; iS++) /* fill interval */ |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| } |
| |
| pTempsrc1 += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb8_x2 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 3; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2)) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - |
| (mng_int32)(*(pTempsrc1+1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+2) == *(pTempsrc2+2)) |
| *pTempdst = *(pTempsrc1+2); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - |
| (mng_int32)(*(pTempsrc1+2)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb8_x3 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X3, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 3; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* replicate first half */ |
| { |
| *pTempdst = *pTempsrc1; |
| *(pTempdst+1) = *(pTempsrc1+1); |
| *(pTempdst+2) = *(pTempsrc1+2); |
| |
| pTempdst += 3; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* replicate second half */ |
| { |
| *pTempdst = *pTempsrc2; |
| *(pTempdst+1) = *(pTempsrc2+1); |
| *(pTempdst+2) = *(pTempsrc2+2); |
| |
| pTempdst += 3; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_X3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_GRAY_SUPPORT |
| mng_retcode mng_magnify_ga8_x1 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX, iS, iM; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X1, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| iM = iML; |
| else |
| if (iX == (iWidth - 1)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| |
| for (iS = 1; iS < iM; iS++) /* fill interval */ |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga8_x2 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 2; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2)) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - |
| (mng_int32)(*(pTempsrc1+1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga8_x3 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X3, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 2; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* replicate first half */ |
| { |
| *pTempdst = *pTempsrc1; |
| *(pTempdst+1) = *(pTempsrc1+1); |
| |
| pTempdst += 2; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* replicate second half */ |
| { |
| *pTempdst = *pTempsrc2; |
| *(pTempdst+1) = *(pTempsrc2+1); |
| |
| pTempdst += 2; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga8_x4 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X4, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 2; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* first half */ |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2)) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| |
| *pTempdst = *(pTempsrc1+1); /* replicate alpha from left */ |
| |
| pTempdst++; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* second half */ |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2)) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| |
| *pTempdst = *(pTempsrc2+1); /* replicate alpha from right */ |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga8_x5 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X5, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 2; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* first half */ |
| { |
| *pTempdst = *pTempsrc1; /* replicate gray from left */ |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1);/* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - |
| (mng_int32)(*(pTempsrc1+1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); |
| |
| pTempdst++; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* second half */ |
| { |
| *pTempdst = *pTempsrc2; /* replicate gray from right */ |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1);/* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - |
| (mng_int32)(*(pTempsrc1+1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_X5, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_GRAY_SUPPORT */ |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_MAGN */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_x1 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX, iS, iM; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X1, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| iM = iML; |
| else |
| if (iX == (iWidth - 1)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| |
| for (iS = 1; iS < iM; iS++) /* fill interval */ |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_x2 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 4; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2)) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - |
| (mng_int32)(*(pTempsrc1+1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+2) == *(pTempsrc2+2)) |
| *pTempdst = *(pTempsrc1+2); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - |
| (mng_int32)(*(pTempsrc1+2)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+3) == *(pTempsrc2+3)) |
| *pTempdst = *(pTempsrc1+3); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - |
| (mng_int32)(*(pTempsrc1+3)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_x3 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X3, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 4; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* replicate first half */ |
| { |
| *pTempdst = *pTempsrc1; |
| *(pTempdst+1) = *(pTempsrc1+1); |
| *(pTempdst+2) = *(pTempsrc1+2); |
| *(pTempdst+3) = *(pTempsrc1+3); |
| |
| pTempdst += 4; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* replicate second half */ |
| { |
| *pTempdst = *pTempsrc2; |
| *(pTempdst+1) = *(pTempsrc2+1); |
| *(pTempdst+2) = *(pTempsrc2+2); |
| *(pTempdst+3) = *(pTempsrc2+3); |
| |
| pTempdst += 4; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_x4 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 4; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* first half */ |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2)) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - |
| (mng_int32)(*(pTempsrc1+1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+2) == *(pTempsrc2+2)) |
| *pTempdst = *(pTempsrc1+2); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - |
| (mng_int32)(*(pTempsrc1+2)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); |
| |
| pTempdst++; |
| /* replicate alpha from left */ |
| *pTempdst = *(pTempsrc1+3); |
| |
| pTempdst++; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* second half */ |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2)) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+1)) - |
| (mng_int32)(*(pTempsrc1+1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+1)) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+2) == *(pTempsrc2+2)) |
| *pTempdst = *(pTempsrc1+2); |
| else |
| *pTempdst = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+2)) - |
| (mng_int32)(*(pTempsrc1+2)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+2)) ); |
| |
| pTempdst++; |
| /* replicate alpha from right */ |
| *pTempdst = *(pTempsrc2+3); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_x5 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X5, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline; /* initialize pixel-loop */ |
| pTempdst = pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 4; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* first half */ |
| { |
| *pTempdst = *pTempsrc1; /* replicate color from left */ |
| *(pTempdst+1) = *(pTempsrc1+1); |
| *(pTempdst+2) = *(pTempsrc1+2); |
| |
| if (*(pTempsrc1+3) == *(pTempsrc2+3)) |
| *(pTempdst+3) = *(pTempsrc1+3); |
| else |
| *(pTempdst+3) = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - |
| (mng_int32)(*(pTempsrc1+3)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); |
| |
| pTempdst += 4; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* second half */ |
| { |
| *pTempdst = *pTempsrc2; /* replicate color from right */ |
| *(pTempdst+1) = *(pTempsrc2+1); |
| *(pTempdst+2) = *(pTempsrc2+2); |
| |
| if (*(pTempsrc1+3) == *(pTempsrc2+3)) |
| *(pTempdst+3) = *(pTempsrc1+3); |
| else |
| *(pTempdst+3) = (mng_uint8)(((2 * iS * ( (mng_int32)(*(pTempsrc2+3)) - |
| (mng_int32)(*(pTempsrc1+3)) ) + iM) / |
| (iM * 2)) + (mng_int32)(*(pTempsrc1+3)) ); |
| |
| pTempdst += 4; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_X4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_MAGN |
| #ifndef MNG_NO_GRAY_SUPPORT |
| mng_retcode mng_magnify_g8_y1 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y1, MNG_LC_START); |
| #endif |
| |
| MNG_COPY (pDstline, pSrcline1, iWidth); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| mng_retcode mng_magnify_g8_y2 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = pSrcline2; |
| pTempdst = pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_g8_y3 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y3, MNG_LC_START); |
| #endif |
| |
| if (pSrcline2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| MNG_COPY (pDstline, pSrcline1, iWidth) |
| else |
| MNG_COPY (pDstline, pSrcline2, iWidth); |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pDstline, pSrcline1, iWidth); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G8_Y3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_GRAY_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb8_y1 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y1, MNG_LC_START); |
| #endif |
| |
| MNG_COPY (pDstline, pSrcline1, iWidth * 3); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb8_y2 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = pSrcline2; |
| pTempdst = pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth * 3); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb8_y3 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y3, MNG_LC_START); |
| #endif |
| |
| if (pSrcline2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| MNG_COPY (pDstline, pSrcline1, iWidth * 3) |
| else |
| MNG_COPY (pDstline, pSrcline2, iWidth * 3); |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pDstline, pSrcline1, iWidth * 3); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB8_Y3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_GRAY_SUPPORT |
| mng_retcode mng_magnify_ga8_y1 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y1, MNG_LC_START); |
| #endif |
| |
| MNG_COPY (pDstline, pSrcline1, iWidth << 1); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga8_y2 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = pSrcline2; |
| pTempdst = pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth << 1); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga8_y3 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y3, MNG_LC_START); |
| #endif |
| |
| if (pSrcline2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| MNG_COPY (pDstline, pSrcline1, iWidth << 1) |
| else |
| MNG_COPY (pDstline, pSrcline2, iWidth << 1); |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pDstline, pSrcline1, iWidth << 1); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga8_y4 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y4, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = pSrcline2; |
| pTempdst = pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2 += 2; |
| |
| *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ |
| } |
| } |
| else |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1 += 2; |
| pTempsrc2++; |
| |
| *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ |
| } |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth << 1); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga8_y5 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y5, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = pSrcline2; |
| pTempdst = pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* replicate gray from top */ |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc2; /* replicate gray from bottom */ |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth << 1); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA8_Y5, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_GRAY_SUPPORT */ |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_MAGN */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_y1 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y1, MNG_LC_START); |
| #endif |
| |
| MNG_COPY (pDstline, pSrcline1, iWidth << 2); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_y2 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = pSrcline2; |
| pTempdst = pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth << 2); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_y3 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y3, MNG_LC_START); |
| #endif |
| |
| if (pSrcline2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| MNG_COPY (pDstline, pSrcline1, iWidth << 2) |
| else |
| MNG_COPY (pDstline, pSrcline2, iWidth << 2); |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pDstline, pSrcline1, iWidth << 2); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_y4 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y4, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = pSrcline2; |
| pTempdst = pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2 += 2; |
| |
| *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ |
| } |
| } |
| else |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1 += 2; |
| pTempsrc2++; |
| |
| *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ |
| } |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth << 2); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba8_y5 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint8p pTempsrc1; |
| mng_uint8p pTempsrc2; |
| mng_uint8p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y5, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = pSrcline2; |
| pTempdst = pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst++ = *pTempsrc1++; /* replicate color from top */ |
| *pTempdst++ = *pTempsrc1++; |
| *pTempdst++ = *pTempsrc1++; |
| |
| pTempsrc2 += 3; |
| |
| if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst++ = *pTempsrc2++; /* replicate color from bottom */ |
| *pTempdst++ = *pTempsrc2++; |
| *pTempdst++ = *pTempsrc2++; |
| |
| pTempsrc1 += 3; |
| |
| if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ |
| *pTempdst = *pTempsrc1; |
| else |
| *pTempdst = (mng_uint8)( ( (2 * iS * ( (mng_int32)(*pTempsrc2) - |
| (mng_int32)(*pTempsrc1) ) + iM) / |
| (iM * 2) ) + (mng_int32)(*pTempsrc1) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth << 2); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA8_Y5, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_OPTIMIZE_FOOTPRINT_MAGN |
| #ifndef MNG_NO_16BIT_SUPPORT |
| #ifndef MNG_NO_GRAY_SUPPORT |
| mng_retcode mng_magnify_g16_x1 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX, iS, iM; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X1, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| iM = iML; |
| else |
| if (iX == (iWidth - 1)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| |
| for (iS = 1; iS < iM; iS++) /* fill interval */ |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| } |
| |
| pTempsrc1++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_g16_x2 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 1; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { /* is it same as first ? */ |
| if (*pTempsrc1 == *pTempsrc2) |
| { |
| for (iS = 1; iS < iM; iS++) /* then just repeat the first */ |
| { |
| *pTempdst = *pTempsrc1; |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) /* calculate the distances */ |
| { |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) )); |
| pTempdst++; |
| } |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_g16_x3 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X3, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 1; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { /* is it same as first ? */ |
| if (*pTempsrc1 == *pTempsrc2) |
| { |
| for (iS = 1; iS < iM; iS++) /* then just repeat the first */ |
| { |
| *pTempdst = *pTempsrc1; |
| pTempdst++; |
| } |
| } |
| else |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* replicate first half */ |
| { |
| *pTempdst = *pTempsrc1; |
| pTempdst++; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* replicate second half */ |
| { |
| *pTempdst = *pTempsrc2; |
| pTempdst++; |
| } |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1++; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_X3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_GRAY_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb16_x1 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX, iS, iM; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X1, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| iM = iML; |
| else |
| if (iX == (iWidth - 1)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| |
| for (iS = 1; iS < iM; iS++) /* fill interval */ |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| } |
| |
| pTempsrc1 += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb16_x2 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 3; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+2) == *(pTempsrc2+2)) |
| *pTempdst = *(pTempsrc1+2); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+2))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) ); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb16_x3 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X3, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 3; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* replicate first half */ |
| { |
| *pTempdst = *pTempsrc1; |
| *(pTempdst+1) = *(pTempsrc1+1); |
| *(pTempdst+2) = *(pTempsrc1+2); |
| |
| pTempdst += 3; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* replicate second half */ |
| { |
| *pTempdst = *pTempsrc2; |
| *(pTempdst+1) = *(pTempsrc2+1); |
| *(pTempdst+2) = *(pTempsrc2+2); |
| |
| pTempdst += 3; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 3; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_X3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_GRAY_SUPPORT |
| mng_retcode mng_magnify_ga16_x1 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX, iS, iM; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X1, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p) pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| iM = iML; |
| else |
| if (iX == (iWidth - 1)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| |
| for (iS = 1; iS < iM; iS++) /* fill interval */ |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga16_x2 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 2; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga16_x3 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X3, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 2; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* replicate first half */ |
| { |
| *pTempdst = *pTempsrc1; |
| *(pTempdst+1) = *(pTempsrc1+1); |
| |
| pTempdst += 2; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* replicate second half */ |
| { |
| *pTempdst = *pTempsrc2; |
| *(pTempdst+1) = *(pTempsrc2+1); |
| |
| pTempdst += 2; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga16_x4 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X4, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 2; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* first half */ |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| |
| *pTempdst = *(pTempsrc1+1); /* replicate alpha from left */ |
| |
| pTempdst++; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* second half */ |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| |
| *pTempdst = *(pTempsrc2+1); /* replicate alpha from right */ |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga16_x5 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X5, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 2; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* first half */ |
| { |
| *pTempdst = *pTempsrc1; /* replicate gray from left */ |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1);/* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); |
| |
| pTempdst++; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* second half */ |
| { |
| *pTempdst = *pTempsrc2; /* replicate gray from right */ |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1);/* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_X5, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_GRAY_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_x1 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX, iS, iM; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X1, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| iM = iML; |
| else |
| if (iX == (iWidth - 1)) /* last interval ? */ |
| iM = iMR; |
| else |
| iM = iMX; |
| |
| for (iS = 1; iS < iM; iS++) /* fill interval */ |
| { |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_x2 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 4; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+2) == *(pTempsrc2+2)) |
| *pTempdst = *(pTempsrc1+2); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+2))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+3) == *(pTempsrc2+3)) |
| *pTempdst = *(pTempsrc1+3); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+3))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) ); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_x3 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X3, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 4; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* replicate first half */ |
| { |
| *pTempdst = *pTempsrc1; |
| *(pTempdst+1) = *(pTempsrc1+1); |
| *(pTempdst+2) = *(pTempsrc1+2); |
| *(pTempdst+3) = *(pTempsrc1+3); |
| |
| pTempdst += 4; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* replicate second half */ |
| { |
| *pTempdst = *pTempsrc2; |
| *(pTempdst+1) = *(pTempsrc2+1); |
| *(pTempdst+2) = *(pTempsrc2+2); |
| *(pTempdst+3) = *(pTempsrc2+3); |
| |
| pTempdst += 4; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_x4 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X4, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 4; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* first half */ |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+2) == *(pTempsrc2+2)) |
| *pTempdst = *(pTempsrc1+2); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+2))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) ); |
| |
| pTempdst++; |
| /* replicate alpha from left */ |
| *pTempdst = *(pTempsrc1+3); |
| |
| pTempdst++; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* second half */ |
| { |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; /* just repeat the first */ |
| else /* calculate the distance */ |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+1) == *(pTempsrc2+1)) |
| *pTempdst = *(pTempsrc1+1); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+1))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+1))) ) ); |
| |
| pTempdst++; |
| |
| if (*(pTempsrc1+2) == *(pTempsrc2+2)) |
| *pTempdst = *(pTempsrc1+2); |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+2))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+2))) ) ); |
| |
| pTempdst++; |
| /* replicate alpha from right */ |
| *pTempdst = *(pTempsrc2+3); |
| |
| pTempdst++; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_x5 (mng_datap pData, |
| mng_uint16 iMX, |
| mng_uint16 iML, |
| mng_uint16 iMR, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_int32 iS, iM, iH; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X5, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline; /* initialize pixel-loop */ |
| pTempdst = (mng_uint16p)pDstline; |
| |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| pTempsrc2 = pTempsrc1 + 4; |
| |
| *pTempdst = *pTempsrc1; /* copy original source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| |
| if (iX == 0) /* first interval ? */ |
| { |
| if (iWidth == 1) /* single pixel ? */ |
| pTempsrc2 = MNG_NULL; |
| |
| iM = (mng_int32)iML; |
| } |
| else |
| if (iX == (iWidth - 2)) /* last interval ? */ |
| iM = (mng_int32)iMR; |
| else |
| iM = (mng_int32)iMX; |
| /* fill interval ? */ |
| if ((iX < iWidth - 1) || (iWidth == 1)) |
| { |
| if (pTempsrc2) /* do we have the second pixel ? */ |
| { |
| iH = (iM+1) / 2; /* calculate halfway point */ |
| |
| for (iS = 1; iS < iH; iS++) /* first half */ |
| { |
| *pTempdst = *pTempsrc1; /* replicate color from left */ |
| *(pTempdst+1) = *(pTempsrc1+1); |
| *(pTempdst+2) = *(pTempsrc1+2); |
| |
| if (*(pTempsrc1+3) == *(pTempsrc2+3)) |
| *(pTempdst+3) = *(pTempsrc1+3); |
| else |
| mng_put_uint16 ((mng_uint8p)(pTempdst+3), |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+3))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) ); |
| |
| pTempdst += 4; |
| } |
| |
| for (iS = iH; iS < iM; iS++) /* second half */ |
| { |
| *pTempdst = *pTempsrc2; /* replicate color from right */ |
| *(pTempdst+1) = *(pTempsrc2+1); |
| *(pTempdst+2) = *(pTempsrc2+2); |
| |
| if (*(pTempsrc1+3) == *(pTempsrc2+3)) |
| *(pTempdst+3) = *(pTempsrc1+3); |
| else |
| mng_put_uint16 ((mng_uint8p)(pTempdst+3), |
| (mng_uint16)(((2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc2+3))) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)(pTempsrc1+3))) ) ); |
| |
| pTempdst += 4; |
| } |
| } |
| else |
| { |
| for (iS = 1; iS < iM; iS++) |
| { |
| *pTempdst = *pTempsrc1; /* repeat first source pixel */ |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+1); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+2); |
| pTempdst++; |
| *pTempdst = *(pTempsrc1+3); |
| pTempdst++; |
| } |
| } |
| } |
| |
| pTempsrc1 += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_X4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_GRAY_SUPPORT |
| mng_retcode mng_magnify_g16_y1 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y1, MNG_LC_START); |
| #endif |
| |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 1)); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_g16_y2 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = (mng_uint16p)pSrcline2; |
| pTempdst = (mng_uint16p)pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, (iWidth << 1)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_g16_y3 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y3, MNG_LC_START); |
| #endif |
| |
| if (pSrcline2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 1)) |
| else |
| MNG_COPY (pDstline, pSrcline2, (iWidth << 1)); |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 1)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_G16_Y3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_GRAY_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb16_y1 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y1, MNG_LC_START); |
| #endif |
| |
| MNG_COPY (pDstline, pSrcline1, iWidth * 6); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb16_y2 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = (mng_uint16p)pSrcline2; |
| pTempdst = (mng_uint16p)pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, iWidth * 6); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgb16_y3 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y3, MNG_LC_START); |
| #endif |
| |
| if (pSrcline2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| MNG_COPY (pDstline, pSrcline1, iWidth * 6) |
| else |
| MNG_COPY (pDstline, pSrcline2, iWidth * 6); |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pDstline, pSrcline1, iWidth * 6); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGB16_Y3, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_GRAY_SUPPORT |
| mng_retcode mng_magnify_ga16_y1 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y1, MNG_LC_START); |
| #endif |
| |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 2)); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga16_y2 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = (mng_uint16p)pSrcline2; |
| pTempdst = (mng_uint16p)pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, (iWidth << 2)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga16_y3 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y3, MNG_LC_START); |
| #endif |
| |
| if (pSrcline2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 2)) |
| else |
| MNG_COPY (pDstline, pSrcline2, (iWidth << 2)); |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 2)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga16_y4 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y4, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = (mng_uint16p)pSrcline2; |
| pTempdst = (mng_uint16p)pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2 += 2; |
| |
| *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ |
| } |
| } |
| else |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1 += 2; |
| pTempsrc2++; |
| |
| *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ |
| } |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, (iWidth << 2)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_ga16_y5 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y5, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = (mng_uint16p)pSrcline2; |
| pTempdst = (mng_uint16p)pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc1; /* replicate gray from top */ |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst = *pTempsrc2; /* replicate gray from bottom */ |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, (iWidth << 2)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_GA16_Y5, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_GRAY_SUPPORT */ |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_y1 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y1, MNG_LC_START); |
| #endif |
| |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 3)); |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y1, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_y2 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y2, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = (mng_uint16p)pSrcline2; |
| pTempdst = (mng_uint16p)pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, (iWidth << 3)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_y3 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y3, MNG_LC_START); |
| #endif |
| |
| if (pSrcline2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 3)) |
| else |
| MNG_COPY (pDstline, pSrcline2, (iWidth << 3)); |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pDstline, pSrcline1, (iWidth << 3)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y2, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_y4 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y4, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = (mng_uint16p)pSrcline2; |
| pTempdst = (mng_uint16p)pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2 += 2; |
| |
| *pTempdst++ = *pTempsrc1++; /* replicate alpha from top */ |
| } |
| } |
| else |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { /* calculate the distances */ |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| |
| if (*pTempsrc1 == *pTempsrc2) |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1 += 2; |
| pTempsrc2++; |
| |
| *pTempdst++ = *pTempsrc2++; /* replicate alpha from bottom */ |
| } |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, (iWidth << 3)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y4, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_magnify_rgba16_y5 (mng_datap pData, |
| mng_int32 iS, |
| mng_int32 iM, |
| mng_uint32 iWidth, |
| mng_uint8p pSrcline1, |
| mng_uint8p pSrcline2, |
| mng_uint8p pDstline) |
| { |
| mng_uint32 iX; |
| mng_uint16p pTempsrc1; |
| mng_uint16p pTempsrc2; |
| mng_uint16p pTempdst; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y5, MNG_LC_START); |
| #endif |
| |
| pTempsrc1 = (mng_uint16p)pSrcline1; /* initialize pixel-loop */ |
| pTempsrc2 = (mng_uint16p)pSrcline2; |
| pTempdst = (mng_uint16p)pDstline; |
| |
| if (pTempsrc2) /* do we have a second line ? */ |
| { |
| if (iS < (iM+1) / 2) /* top half ? */ |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst++ = *pTempsrc1++; /* replicate color from top */ |
| *pTempdst++ = *pTempsrc1++; |
| *pTempdst++ = *pTempsrc1++; |
| |
| pTempsrc2 += 3; |
| |
| if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| else |
| { |
| for (iX = 0; iX < iWidth; iX++) |
| { |
| *pTempdst++ = *pTempsrc2++; /* replicate color from bottom */ |
| *pTempdst++ = *pTempsrc2++; |
| *pTempdst++ = *pTempsrc2++; |
| |
| pTempsrc1 += 3; |
| |
| if (*pTempsrc1 == *pTempsrc2) /* calculate the distances */ |
| *pTempdst = *pTempsrc1; |
| else |
| mng_put_uint16 ((mng_uint8p)pTempdst, |
| (mng_uint16)( ( (2 * iS * ( (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc2)) - |
| (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) + iM) / |
| (iM * 2)) + (mng_int32)(mng_get_uint16 ((mng_uint8p)pTempsrc1)) ) ); |
| |
| pTempdst++; |
| pTempsrc1++; |
| pTempsrc2++; |
| } |
| } |
| } |
| else |
| { /* just repeat the entire line */ |
| MNG_COPY (pTempdst, pTempsrc1, (iWidth << 3)); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_MAGNIFY_RGBA16_Y5, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif /* MNG_NO_16BIT_SUPPORT */ |
| #endif /* MNG_OPTIMIZE_FOOTPRINT_MAGN */ |
| #endif /* MNG_SKIPCHUNK_MAGN */ |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * PAST composition routines - compose over/under with a target object * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCHUNK_PAST |
| mng_retcode mng_composeover_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8; |
| mng_uint8 iCr8, iCg8, iCb8, iCa8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_COMPOSEOVER_RGBA8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iFGa8 = *(pWorkrow+3); /* get alpha values */ |
| iBGa8 = *(pOutrow+3); |
| |
| if (iFGa8) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa8 == 0xFF) || (iBGa8 == 0)) |
| { /* then simply copy the values */ |
| *pOutrow = *pWorkrow; |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| *(pOutrow+3) = iFGa8; |
| } |
| else |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pOutrow+i), *(pWorkrow+i), iFGa8, *(pOutrow+i)); |
| } |
| #else |
| MNG_COMPOSE8 (*pOutrow, *pWorkrow, iFGa8, *pOutrow ); |
| MNG_COMPOSE8 (*(pOutrow+1), *(pWorkrow+1), iFGa8, *(pOutrow+1)); |
| MNG_COMPOSE8 (*(pOutrow+2), *(pWorkrow+2), iFGa8, *(pOutrow+2)); |
| #endif |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* here we'll have to blend */ |
| MNG_BLEND8 (*pWorkrow, *(pWorkrow+1), *(pWorkrow+2), iFGa8, |
| *pOutrow, *(pOutrow+1), *(pOutrow+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pOutrow = iCr8; |
| *(pOutrow+1) = iCg8; |
| *(pOutrow+2) = iCb8; |
| *(pOutrow+3) = iCa8; |
| } |
| } |
| } |
| |
| pOutrow += 4; |
| pWorkrow += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_COMPOSEOVER_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_composeover_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint16p pWorkrow; |
| mng_uint16p pOutrow; |
| mng_int32 iX; |
| mng_uint16 iFGa16, iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGa16, iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16, iCa16; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_COMPOSEOVER_RGBA16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = (mng_uint16p)pData->pRGBArow; |
| pOutrow = (mng_uint16p)(pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize)); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+3)); |
| iBGa16 = mng_get_uint16 ((mng_uint8p)(pOutrow+3)); |
| |
| if (iFGa16) /* any opacity at all ? */ |
| { /* fully opaque or background fully transparent ? */ |
| if ((iFGa16 == 0xFFFF) || (iBGa16 == 0)) |
| { /* then simply copy the values */ |
| *pOutrow = *pWorkrow; |
| *(pOutrow+1) = *(pWorkrow+1); |
| *(pOutrow+2) = *(pWorkrow+2); |
| *(pOutrow+3) = *(pWorkrow+3); |
| } |
| else |
| { /* get color values */ |
| iFGr16 = mng_get_uint16 ((mng_uint8p)pWorkrow); |
| iFGg16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+1)); |
| iFGb16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+2)); |
| iBGr16 = mng_get_uint16 ((mng_uint8p)pOutrow); |
| iBGg16 = mng_get_uint16 ((mng_uint8p)(pOutrow+1)); |
| iBGb16 = mng_get_uint16 ((mng_uint8p)(pOutrow+2)); |
| |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE16 (iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16 (iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16 (iFGb16, iFGb16, iFGa16, iBGb16); |
| |
| mng_put_uint16 ((mng_uint8p)pOutrow, iFGr16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+1), iFGg16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+2), iFGb16); |
| /* alpha remains fully opaque !!! */ |
| } |
| else |
| { /* here we'll have to blend */ |
| MNG_BLEND16 (iFGr16, iFGg16, iFGb16, iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| mng_put_uint16 ((mng_uint8p)pOutrow, iCr16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+1), iCg16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+2), iCb16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+3), iCa16); |
| } |
| } |
| } |
| |
| pOutrow += 4; |
| pWorkrow += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_COMPOSEOVER_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_composeunder_rgba8 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint8p pWorkrow; |
| mng_uint8p pOutrow; |
| mng_int32 iX; |
| mng_uint8 iFGa8, iBGa8; |
| mng_uint8 iCr8, iCg8, iCb8, iCa8; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_COMPOSEUNDER_RGBA8, MNG_LC_START); |
| #endif |
| |
| pWorkrow = pData->pRGBArow; |
| pOutrow = pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { |
| iFGa8 = *(pOutrow+3); /* get alpha values */ |
| iBGa8 = *(pWorkrow+3); |
| /* anything to do at all ? */ |
| if ((iBGa8) && (iFGa8 != 0xFF)) |
| { |
| if (iBGa8 == 0xFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| #ifdef MNG_OPTIMIZE_FOOTPRINT_COMPOSE |
| int i; |
| for (i=2; i >= 0; i--) |
| { |
| MNG_COMPOSE8 (*(pOutrow+i), *(pOutrow+i), iFGa8, *(pWorkrow+i)); |
| } |
| #else |
| MNG_COMPOSE8 (*pOutrow, *pOutrow, iFGa8, *pWorkrow ); |
| MNG_COMPOSE8 (*(pOutrow+1), *(pOutrow+1), iFGa8, *(pWorkrow+1)); |
| MNG_COMPOSE8 (*(pOutrow+2), *(pOutrow+2), iFGa8, *(pWorkrow+2)); |
| #endif |
| *(pOutrow+3) = 0xFF; /* alpha becomes fully opaque !!! */ |
| } |
| else |
| { /* here we'll have to blend */ |
| MNG_BLEND8 (*pOutrow, *(pOutrow+1), *(pOutrow+2), iFGa8, |
| *pWorkrow, *(pWorkrow+1), *(pWorkrow+2), iBGa8, |
| iCr8, iCg8, iCb8, iCa8); |
| /* and return the composed values */ |
| *pOutrow = iCr8; |
| *(pOutrow+1) = iCg8; |
| *(pOutrow+2) = iCb8; |
| *(pOutrow+3) = iCa8; |
| } |
| } |
| |
| pOutrow += 4; |
| pWorkrow += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_COMPOSEUNDER_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_composeunder_rgba16 (mng_datap pData) |
| { |
| mng_imagedatap pBuf = ((mng_imagep)pData->pStoreobj)->pImgbuf; |
| mng_uint16p pWorkrow; |
| mng_uint16p pOutrow; |
| mng_int32 iX; |
| mng_uint16 iFGa16, iFGr16, iFGg16, iFGb16; |
| mng_uint16 iBGa16, iBGr16, iBGg16, iBGb16; |
| mng_uint16 iCr16, iCg16, iCb16, iCa16; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_COMPOSEUNDER_RGBA16, MNG_LC_START); |
| #endif |
| |
| pWorkrow = (mng_uint16p)pData->pRGBArow; |
| pOutrow = (mng_uint16p)(pBuf->pImgdata + (pData->iRow * pBuf->iRowsize ) + |
| (pData->iCol * pBuf->iSamplesize)); |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* get alpha values */ |
| iFGa16 = mng_get_uint16 ((mng_uint8p)(pOutrow+3)); |
| iBGa16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+3)); |
| /* anything to do at all ? */ |
| if ((iBGa16) && (iFGa16 != 0xFFFF)) |
| { |
| iFGr16 = mng_get_uint16 ((mng_uint8p)pOutrow); |
| iFGg16 = mng_get_uint16 ((mng_uint8p)(pOutrow+1)); |
| iFGb16 = mng_get_uint16 ((mng_uint8p)(pOutrow+2)); |
| iBGr16 = mng_get_uint16 ((mng_uint8p)pWorkrow); |
| iBGg16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+1)); |
| iBGb16 = mng_get_uint16 ((mng_uint8p)(pWorkrow+2)); |
| |
| if (iBGa16 == 0xFFFF) /* background fully opaque ? */ |
| { /* do alpha composing */ |
| MNG_COMPOSE16 (iFGr16, iFGr16, iFGa16, iBGr16); |
| MNG_COMPOSE16 (iFGg16, iFGg16, iFGa16, iBGg16); |
| MNG_COMPOSE16 (iFGb16, iFGb16, iFGa16, iBGb16); |
| |
| mng_put_uint16 ((mng_uint8p)pOutrow, iFGr16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+1), iFGg16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+2), iFGb16); |
| *(pOutrow+3) = 0xFFFF; /* alpha becomes fully opaque !!! */ |
| } |
| else |
| { /* here we'll have to blend */ |
| MNG_BLEND16 (iFGr16, iFGg16, iFGb16, iFGa16, |
| iBGr16, iBGg16, iBGb16, iBGa16, |
| iCr16, iCg16, iCb16, iCa16); |
| /* and return the composed values */ |
| mng_put_uint16 ((mng_uint8p)pOutrow, iCr16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+1), iCg16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+2), iCb16); |
| mng_put_uint16 ((mng_uint8p)(pOutrow+3), iCa16); |
| } |
| } |
| |
| pOutrow += 4; |
| pWorkrow += 4; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_COMPOSEUNDER_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| #endif |
| |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * PAST flip & tile routines - flip or tile a row of pixels * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_SKIPCHUNK_PAST |
| mng_retcode mng_flip_rgba8 (mng_datap pData) |
| { |
| mng_uint32p pWorkrow; |
| mng_uint32p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_FLIP_RGBA8, MNG_LC_START); |
| #endif |
| /* setup temp pointers */ |
| pWorkrow = (mng_uint32p)pData->pRGBArow + pData->iRowsamples - 1; |
| pOutrow = (mng_uint32p)pData->pWorkrow; |
| /* swap original buffers */ |
| pData->pWorkrow = pData->pRGBArow; |
| pData->pRGBArow = (mng_uint8p)pOutrow; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* let's flip */ |
| *pOutrow = *pWorkrow; |
| pOutrow++; |
| pWorkrow--; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_FLIP_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_flip_rgba16 (mng_datap pData) |
| { |
| mng_uint32p pWorkrow; |
| mng_uint32p pOutrow; |
| mng_int32 iX; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_FLIP_RGBA16, MNG_LC_START); |
| #endif |
| /* setup temp pointers */ |
| pWorkrow = (mng_uint32p)pData->pRGBArow + ((pData->iRowsamples - 1) << 1); |
| pOutrow = (mng_uint32p)pData->pWorkrow; |
| /* swap original buffers */ |
| pData->pWorkrow = pData->pRGBArow; |
| pData->pRGBArow = (mng_uint8p)pOutrow; |
| |
| #ifdef MNG_DECREMENT_LOOPS |
| for (iX = pData->iRowsamples; iX > 0; iX--) |
| #else |
| for (iX = 0; iX < pData->iRowsamples; iX++) |
| #endif |
| { /* let's flip */ |
| *pOutrow = *pWorkrow; |
| *(pOutrow + 1) = *(pWorkrow + 1); |
| |
| pOutrow += 2; |
| pWorkrow -= 2; |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_FLIP_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| mng_retcode mng_tile_rgba8 (mng_datap pData) |
| { |
| mng_uint32p pWorkrow; |
| mng_uint32p pOutrow; |
| mng_int32 iX; |
| mng_uint32 iZ, iMax; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_TILE_RGBA8, MNG_LC_START); |
| #endif |
| |
| iZ = pData->iSourcel; /* indent ? */ |
| /* what's our source-length */ |
| iMax = ((mng_imagep)pData->pRetrieveobj)->pImgbuf->iWidth; |
| /* setup temp pointers */ |
| pWorkrow = (mng_uint32p)pData->pRGBArow + iZ; |
| pOutrow = (mng_uint32p)pData->pWorkrow; |
| /* swap original buffers */ |
| pData->pWorkrow = pData->pRGBArow; |
| pData->pRGBArow = (mng_uint8p)pOutrow; |
| |
| for (iX = pData->iDestl; iX < pData->iDestr; iX++) |
| { /* tiiiile */ |
| *pOutrow = *pWorkrow; |
| |
| pWorkrow++; |
| pOutrow++; |
| iZ++; |
| |
| if (iZ >= iMax) /* end of source ? */ |
| { |
| iZ = 0; |
| pWorkrow = (mng_uint32p)pData->pWorkrow; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_TILE_RGBA8, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| |
| /* ************************************************************************** */ |
| |
| #ifndef MNG_NO_16BIT_SUPPORT |
| mng_retcode mng_tile_rgba16 (mng_datap pData) |
| { |
| mng_uint32p pWorkrow; |
| mng_uint32p pOutrow; |
| mng_int32 iX; |
| mng_uint32 iZ, iMax; |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_TILE_RGBA16, MNG_LC_START); |
| #endif |
| |
| iZ = pData->iSourcel; /* indent ? */ |
| /* what's our source-length */ |
| iMax = ((mng_imagep)pData->pRetrieveobj)->pImgbuf->iWidth; |
| /* setup temp pointers */ |
| pWorkrow = (mng_uint32p)pData->pRGBArow + (iZ << 1); |
| pOutrow = (mng_uint32p)pData->pWorkrow; |
| /* swap original buffers */ |
| pData->pWorkrow = pData->pRGBArow; |
| pData->pRGBArow = (mng_uint8p)pOutrow; |
| |
| for (iX = pData->iDestl; iX < pData->iDestr; iX++) |
| { /* tiiiile */ |
| *pOutrow = *pWorkrow; |
| *(pOutrow + 1) = *(pWorkrow + 1); |
| |
| pWorkrow += 2; |
| pOutrow += 2; |
| iZ++; |
| |
| if (iZ >= iMax) /* end of source ? */ |
| { |
| iZ = 0; |
| pWorkrow = (mng_uint32p)pData->pWorkrow; |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACE (pData, MNG_FN_TILE_RGBA16, MNG_LC_END); |
| #endif |
| |
| return MNG_NOERROR; |
| } |
| #endif |
| #endif /* MNG_SKIPCHUNK_PAST */ |
| |
| /* ************************************************************************** */ |
| |
| #endif /* MNG_INCLUDE_DISPLAY_PROCS */ |
| |
| /* ************************************************************************** */ |
| /* * end of file * */ |
| /* ************************************************************************** */ |