| /* ************************************************************************** */ |
| /* * For conditions of distribution and use, * */ |
| /* * see copyright notice in libmng.h * */ |
| /* ************************************************************************** */ |
| /* * * */ |
| /* * project : libmng * */ |
| /* * file : libmng_error.c copyright (c) 2000-2007 G.Juyn * */ |
| /* * version : 1.0.10 * */ |
| /* * * */ |
| /* * purpose : Error routines (implementation) * */ |
| /* * * */ |
| /* * author : G.Juyn * */ |
| /* * * */ |
| /* * comment : implementation of the general error handling routines * */ |
| /* * * */ |
| /* * changes : 0.5.1 - 05/08/2000 - G.Juyn * */ |
| /* * - changed strict-ANSI stuff * */ |
| /* * * */ |
| /* * 0.5.2 - 05/23/2000 - G.Juyn * */ |
| /* * - added error telltaling * */ |
| /* * 0.5.2 - 05/30/2000 - G.Juyn * */ |
| /* * - added errorstrings for delta-image processing * */ |
| /* * 0.5.2 - 05/31/2000 - G.Juyn * */ |
| /* * - fixed up punctuation (contributed by Tim Rowley) * */ |
| /* * 0.5.2 - 06/06/2000 - G.Juyn * */ |
| /* * - added errorstring for delayed buffer-processing * */ |
| /* * * */ |
| /* * 0.9.1 - 07/06/2000 - G.Juyn * */ |
| /* * - added MNG_NEEDTIMERWAIT errorstring * */ |
| /* * 0.9.1 - 07/15/2000 - G.Juyn * */ |
| /* * - added NEEDSECTIONWAIT errorstring * */ |
| /* * - added macro + routine to set returncode without * */ |
| /* * calling error callback * */ |
| /* * 0.9.1 - 07/19/2000 - G.Juyn * */ |
| /* * - added errorstring for updatemngheader if not a MNG * */ |
| /* * * */ |
| /* * 0.9.2 - 08/05/2000 - G.Juyn * */ |
| /* * - changed file-prefixes * */ |
| /* * * */ |
| /* * 0.9.3 - 08/09/2000 - G.Juyn * */ |
| /* * - added check for simplicity-bits in MHDR * */ |
| /* * 0.9.3 - 10/11/2000 - G.Juyn * */ |
| /* * - fixed processing of unknown critical chunks * */ |
| /* * - added support for nEED * */ |
| /* * 0.9.3 - 10/20/2000 - G.Juyn * */ |
| /* * - added errorcode for delayed delta-processing * */ |
| /* * * */ |
| /* * 0.9.4 - 01/18/2001 - G.Juyn * */ |
| /* * - added errorcode for MAGN methods * */ |
| /* * * */ |
| /* * 1.0.2 - 06/23/2001 - G.Juyn * */ |
| /* * - added optimization option for MNG-video playback * */ |
| /* * * */ |
| /* * 1.0.5 - 07/04/2002 - G.Juyn * */ |
| /* * - added errorcode for extreme chunk-sizes * */ |
| /* * 1.0.5 - 08/15/2002 - G.Juyn * */ |
| /* * - completed delta-image support * */ |
| /* * 1.0.5 - 08/19/2002 - G.Juyn * */ |
| /* * - B597134 - libmng pollutes the linker namespace * */ |
| /* * 1.0.5 - 09/14/2002 - G.Juyn * */ |
| /* * - added event handling for dynamic MNG * */ |
| /* * 1.0.5 - 09/15/2002 - G.Juyn * */ |
| /* * - fixed LOOP iteration=0 special case * */ |
| /* * 1.0.5 - 09/19/2002 - G.Juyn * */ |
| /* * - warnings are ignored by default now! * */ |
| /* * 1.0.5 - 09/20/2002 - G.Juyn * */ |
| /* * - added support for PAST * */ |
| /* * 1.0.5 - 10/07/2002 - G.Juyn * */ |
| /* * - added check for TERM placement during create/write * */ |
| /* * * */ |
| /* * 1.0.6 - 07/07/2003 - G. R-P * */ |
| /* * - added MNG_SKIPCHUNK_CHNK, MNG_NO_DELTA_PNG reductions. * */ |
| /* * - skipped more code when MNG_INCLUDE_JNG is not enabled. * */ |
| /* * 1.0.6 - 07/29/2003 - G.R-P * */ |
| /* * - added conditional around evNT chunk support * */ |
| /* * * */ |
| /* * 1.0.7 - 03/24/2004 - G.R-P * */ |
| /* * - fixed typo on SKIPCHUNK_evNT (->PAST) * */ |
| /* * * */ |
| /* * 1.0.9 - 12/20/2004 - G.Juyn * */ |
| /* * - cleaned up macro-invocations (thanks to D. Airlie) * */ |
| /* * * */ |
| /* * 1.0.10 - 04/08/2007 - G.Juyn * */ |
| /* * - added support for mPNG proposal * */ |
| /* * * */ |
| /* ************************************************************************** */ |
| |
| #include "libmng.h" |
| #include "libmng_data.h" |
| #include "libmng_error.h" |
| #include "libmng_trace.h" |
| #ifdef __BORLANDC__ |
| #pragma hdrstop |
| #endif |
| |
| #if defined(__BORLANDC__) && defined(MNG_STRICT_ANSI) |
| #pragma option -A /* force ANSI-C */ |
| #endif |
| |
| /* ************************************************************************** */ |
| |
| #ifdef MNG_INCLUDE_ERROR_STRINGS |
| MNG_LOCAL mng_error_entry const error_table [] = |
| { |
| {MNG_NOERROR, "No error"}, |
| {MNG_OUTOFMEMORY, "Out of memory"}, |
| {MNG_INVALIDHANDLE, "The handle is invalid"}, |
| {MNG_NOCALLBACK, "A required callback is not defined"}, |
| {MNG_UNEXPECTEDEOF, "Encountered unexpected end-of-file"}, |
| {MNG_ZLIBERROR, "zlib encountered an error"}, |
| #ifdef MNG_INCLUDE_JNG |
| {MNG_JPEGERROR, "ijgsrc6b encountered an error"}, |
| #endif |
| {MNG_LCMSERROR, "lcms encountered an error"}, |
| {MNG_NOOUTPUTPROFILE, "No output-profile defined for CMS"}, |
| {MNG_NOSRGBPROFILE, "No sRGB-profile defined for CMS"}, |
| {MNG_BUFOVERFLOW, "Internal buffer-overflow"}, |
| {MNG_FUNCTIONINVALID, "Function is invalid at this point"}, |
| {MNG_OUTPUTERROR, "Writing was unsuccessful; disk full?"}, |
| {MNG_JPEGBUFTOOSMALL, "Internal buffer for JPEG processing too small"}, |
| {MNG_NEEDMOREDATA, "Reading suspended; waiting for I/O to catch up"}, |
| {MNG_NEEDTIMERWAIT, "Timer suspension; normal animation delay"}, |
| {MNG_NEEDSECTIONWAIT, "SEEK suspension; application decides"}, |
| {MNG_LOOPWITHCACHEOFF, "LOOP encountered when playback cache is turned off"}, |
| |
| {MNG_APPIOERROR, "Application signalled I/O error"}, |
| {MNG_APPTIMERERROR, "Application signalled timing error"}, |
| {MNG_APPCMSERROR, "Application signalled CMS error"}, |
| {MNG_APPMISCERROR, "Application signalled an error"}, |
| {MNG_APPTRACEABORT, "Application signalled error during trace-callback"}, |
| |
| {MNG_INTERNALERROR, "Internal error in libmng"}, |
| |
| {MNG_INVALIDSIG, "The signature is invalid"}, |
| {MNG_INVALIDCRC, "The CRC for this chunk is invalid"}, |
| {MNG_INVALIDLENGTH, "Chunk-length is invalid"}, |
| {MNG_SEQUENCEERROR, "Chunk out of sequence"}, |
| {MNG_CHUNKNOTALLOWED, "Chunk not allowed at this point"}, |
| {MNG_MULTIPLEERROR, "Chunk cannot occur multiple times"}, |
| {MNG_PLTEMISSING, "Missing PLTE chunk"}, |
| {MNG_IDATMISSING, "Missing IDAT chunk(s)"}, |
| {MNG_CANNOTBEEMPTY, "Chunk cannot be empty"}, |
| {MNG_GLOBALLENGTHERR, "Global data length invalid"}, |
| {MNG_INVALIDBITDEPTH, "The bit_depth is invalid"}, |
| {MNG_INVALIDCOLORTYPE, "The color_type is invalid"}, |
| {MNG_INVALIDCOMPRESS, "The compression_method is invalid"}, |
| {MNG_INVALIDFILTER, "The filter_method or filter_type is invalid"}, |
| {MNG_INVALIDINTERLACE, "The interlace_method is invalid"}, |
| {MNG_NOTENOUGHIDAT, "There is not enough data in the IDAT chunk(s)"}, |
| {MNG_PLTEINDEXERROR, "Palette-index out of bounds"}, |
| {MNG_NULLNOTFOUND, "NULL separator not found"}, |
| {MNG_KEYWORDNULL, "Keyword cannot be zero-length"}, |
| {MNG_OBJECTUNKNOWN, "Object does not exist"}, |
| {MNG_OBJECTEXISTS, "Object already exists"}, |
| {MNG_TOOMUCHIDAT, "Too much data in IDAT chunk(s)"}, |
| {MNG_INVSAMPLEDEPTH, "The sample_depth is invalid"}, |
| {MNG_INVOFFSETSIZE, "The offset_type is invalid"}, |
| {MNG_INVENTRYTYPE, "The entry_type is invalid"}, |
| {MNG_ENDWITHNULL, "Chunk must not end with NULL byte"}, |
| {MNG_INVIMAGETYPE, "The image_type is invalid"}, |
| #ifndef MNG_NO_DELTA_PNG |
| {MNG_INVDELTATYPE, "The delta_type is invalid"}, |
| #endif |
| {MNG_INVALIDINDEX, "Index-value out of bounds"}, |
| #ifdef MNG_INCLUDE_JNG |
| {MNG_TOOMUCHJDAT, "Too much data in JDAT chunk(s)"}, |
| {MNG_JPEGPARMSERR, "JHDR parameters & JFIF-data do not match"}, |
| #endif |
| {MNG_INVFILLMETHOD, "The fill_method is invalid"}, |
| #ifndef MNG_NO_DELTA_PNG |
| {MNG_OBJNOTCONCRETE, "Target object for DHDR must be concrete"}, |
| #endif |
| {MNG_TARGETNOALPHA, "Target object must have alpha-channel"}, |
| {MNG_MNGTOOCOMPLEX, "MHDR simplicity indicates unsupported feature(s)"}, |
| {MNG_UNKNOWNCRITICAL, "Unknown critical chunk encountered"}, |
| #ifndef MNG_SKIPCHUNK_nEED |
| {MNG_UNSUPPORTEDNEED, "Requested nEED resources are not supported"}, |
| #endif |
| {MNG_INVALIDDELTA, "The delta operation is invalid (mismatched color_types?)"}, |
| {MNG_INVALIDMETHOD, "Method is invalid"}, |
| {MNG_IMPROBABLELENGTH, "Chunklength is incredibly large"}, |
| {MNG_INVALIDBLOCK, "Delta block width and or height invalid"}, |
| {MNG_INVALIDEVENT, "Event type is invalid"}, |
| {MNG_INVALIDMASK, "Mask type is invalid"}, |
| {MNG_NOMATCHINGLOOP, "ENDL without matching LOOP"}, |
| #ifndef MNG_SKIPCHUNK_evNT |
| {MNG_SEEKNOTFOUND, "evNT points to unknown SEEK"}, |
| #endif |
| #ifndef MNG_SKIPCHUNK_PAST |
| {MNG_OBJNOTABSTRACT, "Destination object for PAST must be abstract"}, |
| #endif |
| {MNG_TERMSEQERROR, "TERM misplaced during creation of MNG stream"}, |
| {MNG_INVALIDFIELDVAL, "invalid fieldvalue (generic)"}, |
| {MNG_INVALIDWIDTH, "invalid frame/image width"}, |
| {MNG_INVALIDHEIGHT, "invalid frame/image height"}, |
| |
| {MNG_INVALIDCNVSTYLE, "Canvas_style is invalid"}, |
| {MNG_WRONGCHUNK, "Attempt to access the wrong chunk"}, |
| {MNG_INVALIDENTRYIX, "Attempt to access an non-existing entry"}, |
| {MNG_NOHEADER, "No valid header-chunk"}, |
| {MNG_NOCORRCHUNK, "Parent chunk not found"}, |
| {MNG_NOMHDR, "No MNG header (MHDR) found"}, |
| |
| {MNG_IMAGETOOLARGE, "Image is larger than defined maximum"}, |
| {MNG_NOTANANIMATION, "Image is not an animation"}, |
| {MNG_FRAMENRTOOHIGH, "Framenr out of bounds"}, |
| {MNG_LAYERNRTOOHIGH, "Layernr out of bounds"}, |
| {MNG_PLAYTIMETOOHIGH, "Playtime out of bounds"}, |
| {MNG_FNNOTIMPLEMENTED, "Function not yet implemented"}, |
| {MNG_IMAGEFROZEN, "Image is frozen"}, |
| |
| {MNG_LCMS_NOHANDLE, "Handle could not be initialized"}, |
| {MNG_LCMS_NOMEM, "No memory for gamma-table(s)"}, |
| {MNG_LCMS_NOTRANS, "Transformation could not be initialized"} |
| }; |
| #endif /* MNG_INCLUDE_ERROR_STRINGS */ |
| |
| /* ************************************************************************** */ |
| |
| mng_bool mng_store_error (mng_datap pData, |
| mng_retcode iError, |
| mng_retcode iExtra1, |
| mng_retcode iExtra2) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACEB (pData, MNG_FN_STORE_ERROR, MNG_LC_START); |
| #endif |
| |
| if (pData != 0) |
| { |
| pData->iErrorcode = iError; /* save also for getlasterror */ |
| pData->iErrorx1 = iExtra1; |
| pData->iErrorx2 = iExtra2; |
| |
| #ifdef MNG_INCLUDE_ERROR_STRINGS |
| { /* binary search variables */ |
| mng_int32 iTop, iLower, iUpper, iMiddle; |
| mng_error_entryp pEntry; /* pointer to found entry */ |
| /* determine max index of table */ |
| iTop = (sizeof (error_table) / sizeof (error_table [0])) - 1; |
| |
| iLower = 0; /* initialize binary search */ |
| iMiddle = iTop >> 1; /* start in the middle */ |
| iUpper = iTop; |
| pEntry = 0; /* no goods yet! */ |
| |
| do /* the binary search itself */ |
| { |
| if (error_table [iMiddle].iError < iError) |
| iLower = iMiddle + 1; |
| else if (error_table [iMiddle].iError > iError) |
| iUpper = iMiddle - 1; |
| else |
| { |
| pEntry = &error_table [iMiddle]; |
| break; |
| } |
| |
| iMiddle = (iLower + iUpper) >> 1; |
| } |
| while (iLower <= iUpper); |
| |
| if (pEntry) /* found it ? */ |
| pData->zErrortext = pEntry->zErrortext; |
| else |
| pData->zErrortext = "Unknown error"; |
| } |
| #else /* MNG_INCLUDE_ERROR_STRINGS */ |
| pData->zErrortext = 0; |
| #endif /* MNG_INCLUDE_ERROR_STRINGS */ |
| |
| if (iError == 0) /* no error is not severe ! */ |
| { |
| pData->iSeverity = 0; |
| } |
| else |
| { |
| switch (iError&0x3C00) /* determine the severity */ |
| { |
| case 0x0800 : { pData->iSeverity = 5; break; } |
| case 0x1000 : { pData->iSeverity = 2; break; } |
| case 0x2000 : { pData->iSeverity = 1; break; } |
| default : { pData->iSeverity = 9; } |
| } |
| } |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACEB (pData, MNG_FN_STORE_ERROR, MNG_LC_END); |
| #endif |
| |
| return MNG_TRUE; |
| } |
| |
| /* ************************************************************************** */ |
| |
| mng_bool mng_process_error (mng_datap pData, |
| mng_retcode iError, |
| mng_retcode iExtra1, |
| mng_retcode iExtra2) |
| { |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACEB (pData, MNG_FN_PROCESS_ERROR, MNG_LC_START); |
| #endif |
| |
| mng_store_error (pData, iError, iExtra1, iExtra2); |
| |
| if ((pData != MNG_NULL) && (pData->iMagic == MNG_MAGIC)) |
| { |
| if (pData->fErrorproc) /* callback defined ? */ |
| return pData->fErrorproc (((mng_handle)pData), iError, pData->iSeverity, |
| pData->iChunkname, pData->iChunkseq, |
| pData->iErrorx1, pData->iErrorx2, pData->zErrortext); |
| } |
| |
| #ifdef MNG_SUPPORT_TRACE |
| MNG_TRACEB (pData, MNG_FN_PROCESS_ERROR, MNG_LC_END); |
| #endif |
| |
| return MNG_TRUE; /* warnings are ignored by default ! */ |
| } |
| |
| /* ************************************************************************** */ |
| /* * end of file * */ |
| /* ************************************************************************** */ |
| |
