| /* | |
| * Copyright (C) 2009 David Conrad | |
| * | |
| * This file is part of FFmpeg. | |
| * | |
| * FFmpeg is free software; you can redistribute it and/or | |
| * modify it under the terms of the GNU Lesser General Public | |
| * License as published by the Free Software Foundation; either | |
| * version 2.1 of the License, or (at your option) any later version. | |
| * | |
| * FFmpeg is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| * Lesser General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU Lesser General Public | |
| * License along with FFmpeg; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| */ | |
| #include "config.h" | |
| #include "libavutil/attributes.h" | |
| #include "libavutil/common.h" | |
| #include "diracdsp.h" | |
| #define FILTER(src, stride) \ | |
| ((21*((src)[ 0*stride] + (src)[1*stride]) \ | |
| -7*((src)[-1*stride] + (src)[2*stride]) \ | |
| +3*((src)[-2*stride] + (src)[3*stride]) \ | |
| -1*((src)[-3*stride] + (src)[4*stride]) + 16) >> 5) | |
| static void dirac_hpel_filter(uint8_t *dsth, uint8_t *dstv, uint8_t *dstc, const uint8_t *src, | |
| int stride, int width, int height) | |
| { | |
| int x, y; | |
| for (y = 0; y < height; y++) { | |
| for (x = -3; x < width+5; x++) | |
| dstv[x] = av_clip_uint8(FILTER(src+x, stride)); | |
| for (x = 0; x < width; x++) | |
| dstc[x] = av_clip_uint8(FILTER(dstv+x, 1)); | |
| for (x = 0; x < width; x++) | |
| dsth[x] = av_clip_uint8(FILTER(src+x, 1)); | |
| src += stride; | |
| dsth += stride; | |
| dstv += stride; | |
| dstc += stride; | |
| } | |
| } | |
| #define PIXOP_BILINEAR(PFX, OP, WIDTH) \ | |
| static void ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c(uint8_t *dst, const uint8_t *src[5], int stride, int h) \ | |
| { \ | |
| int x; \ | |
| const uint8_t *s0 = src[0]; \ | |
| const uint8_t *s1 = src[1]; \ | |
| const uint8_t *s2 = src[2]; \ | |
| const uint8_t *s3 = src[3]; \ | |
| const uint8_t *w = src[4]; \ | |
| \ | |
| while (h--) { \ | |
| for (x = 0; x < WIDTH; x++) { \ | |
| OP(dst[x], (s0[x]*w[0] + s1[x]*w[1] + s2[x]*w[2] + s3[x]*w[3] + 8) >> 4); \ | |
| } \ | |
| \ | |
| dst += stride; \ | |
| s0 += stride; \ | |
| s1 += stride; \ | |
| s2 += stride; \ | |
| s3 += stride; \ | |
| } \ | |
| } | |
| #define OP_PUT(dst, val) (dst) = (val) | |
| #define OP_AVG(dst, val) (dst) = (((dst) + (val) + 1)>>1) | |
| PIXOP_BILINEAR(put, OP_PUT, 8) | |
| PIXOP_BILINEAR(put, OP_PUT, 16) | |
| PIXOP_BILINEAR(put, OP_PUT, 32) | |
| PIXOP_BILINEAR(avg, OP_AVG, 8) | |
| PIXOP_BILINEAR(avg, OP_AVG, 16) | |
| PIXOP_BILINEAR(avg, OP_AVG, 32) | |
| #define op_scale1(x) block[x] = av_clip_uint8( (block[x]*weight + (1<<(log2_denom-1))) >> log2_denom) | |
| #define op_scale2(x) dst[x] = av_clip_uint8( (src[x]*weights + dst[x]*weightd + (1<<(log2_denom-1))) >> log2_denom) | |
| #define DIRAC_WEIGHT(W) \ | |
| static void weight_dirac_pixels ## W ## _c(uint8_t *block, int stride, int log2_denom, \ | |
| int weight, int h) { \ | |
| int x; \ | |
| while (h--) { \ | |
| for (x = 0; x < W; x++) { \ | |
| op_scale1(x); \ | |
| op_scale1(x+1); \ | |
| } \ | |
| block += stride; \ | |
| } \ | |
| } \ | |
| static void biweight_dirac_pixels ## W ## _c(uint8_t *dst, const uint8_t *src, int stride, int log2_denom, \ | |
| int weightd, int weights, int h) { \ | |
| int x; \ | |
| while (h--) { \ | |
| for (x = 0; x < W; x++) { \ | |
| op_scale2(x); \ | |
| op_scale2(x+1); \ | |
| } \ | |
| dst += stride; \ | |
| src += stride; \ | |
| } \ | |
| } | |
| DIRAC_WEIGHT(8) | |
| DIRAC_WEIGHT(16) | |
| DIRAC_WEIGHT(32) | |
| #define ADD_OBMC(xblen) \ | |
| static void add_obmc ## xblen ## _c(uint16_t *dst, const uint8_t *src, int stride, \ | |
| const uint8_t *obmc_weight, int yblen) \ | |
| { \ | |
| int x; \ | |
| while (yblen--) { \ | |
| for (x = 0; x < xblen; x += 2) { \ | |
| dst[x ] += src[x ] * obmc_weight[x ]; \ | |
| dst[x+1] += src[x+1] * obmc_weight[x+1]; \ | |
| } \ | |
| dst += stride; \ | |
| src += stride; \ | |
| obmc_weight += 32; \ | |
| } \ | |
| } | |
| ADD_OBMC(8) | |
| ADD_OBMC(16) | |
| ADD_OBMC(32) | |
| static void put_signed_rect_clamped_8bit_c(uint8_t *dst, int dst_stride, const uint8_t *_src, int src_stride, int width, int height) | |
| { | |
| int x, y; | |
| const int16_t *src = (const int16_t *)_src; | |
| for (y = 0; y < height; y++) { | |
| for (x = 0; x < width; x+=4) { | |
| dst[x ] = av_clip_uint8(src[x ] + 128); | |
| dst[x+1] = av_clip_uint8(src[x+1] + 128); | |
| dst[x+2] = av_clip_uint8(src[x+2] + 128); | |
| dst[x+3] = av_clip_uint8(src[x+3] + 128); | |
| } | |
| dst += dst_stride; | |
| src += src_stride >> 1; | |
| } | |
| } | |
| #define PUT_SIGNED_RECT_CLAMPED(PX) \ | |
| static void put_signed_rect_clamped_ ## PX ## bit_c(uint8_t *_dst, int dst_stride, const uint8_t *_src, \ | |
| int src_stride, int width, int height) \ | |
| { \ | |
| int x, y; \ | |
| uint16_t *dst = (uint16_t *)_dst; \ | |
| const int32_t *src = (const int32_t *)_src; \ | |
| for (y = 0; y < height; y++) { \ | |
| for (x = 0; x < width; x+=4) { \ | |
| dst[x ] = av_clip_uintp2(src[x ] + (1U << (PX - 1)), PX); \ | |
| dst[x+1] = av_clip_uintp2(src[x+1] + (1U << (PX - 1)), PX); \ | |
| dst[x+2] = av_clip_uintp2(src[x+2] + (1U << (PX - 1)), PX); \ | |
| dst[x+3] = av_clip_uintp2(src[x+3] + (1U << (PX - 1)), PX); \ | |
| } \ | |
| dst += dst_stride >> 1; \ | |
| src += src_stride >> 2; \ | |
| } \ | |
| } | |
| PUT_SIGNED_RECT_CLAMPED(10) | |
| PUT_SIGNED_RECT_CLAMPED(12) | |
| static void add_rect_clamped_c(uint8_t *dst, const uint16_t *src, int stride, | |
| const int16_t *idwt, int idwt_stride, | |
| int width, int height) | |
| { | |
| int x, y; | |
| for (y = 0; y < height; y++) { | |
| for (x = 0; x < width; x+=2) { | |
| dst[x ] = av_clip_uint8(((src[x ]+32)>>6) + idwt[x ]); | |
| dst[x+1] = av_clip_uint8(((src[x+1]+32)>>6) + idwt[x+1]); | |
| } | |
| dst += stride; | |
| src += stride; | |
| idwt += idwt_stride; | |
| } | |
| } | |
| #define DEQUANT_SUBBAND(PX) \ | |
| static void dequant_subband_ ## PX ## _c(uint8_t *src, uint8_t *dst, ptrdiff_t stride, \ | |
| const int qf, const int qs, int tot_v, int tot_h) \ | |
| { \ | |
| int i, y; \ | |
| for (y = 0; y < tot_v; y++) { \ | |
| PX c, *src_r = (PX *)src, *dst_r = (PX *)dst; \ | |
| for (i = 0; i < tot_h; i++) { \ | |
| c = *src_r++; \ | |
| if (c < 0) c = -((-(unsigned)c*qf + qs) >> 2); \ | |
| else if(c > 0) c = (( (unsigned)c*qf + qs) >> 2); \ | |
| *dst_r++ = c; \ | |
| } \ | |
| src += tot_h << (sizeof(PX) >> 1); \ | |
| dst += stride; \ | |
| } \ | |
| } | |
| DEQUANT_SUBBAND(int16_t) | |
| DEQUANT_SUBBAND(int32_t) | |
| #define PIXFUNC(PFX, WIDTH) \ | |
| c->PFX ## _dirac_pixels_tab[WIDTH>>4][0] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _c; \ | |
| c->PFX ## _dirac_pixels_tab[WIDTH>>4][1] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l2_c; \ | |
| c->PFX ## _dirac_pixels_tab[WIDTH>>4][2] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _l4_c; \ | |
| c->PFX ## _dirac_pixels_tab[WIDTH>>4][3] = ff_ ## PFX ## _dirac_pixels ## WIDTH ## _bilinear_c | |
| av_cold void ff_diracdsp_init(DiracDSPContext *c) | |
| { | |
| c->dirac_hpel_filter = dirac_hpel_filter; | |
| c->add_rect_clamped = add_rect_clamped_c; | |
| c->put_signed_rect_clamped[0] = put_signed_rect_clamped_8bit_c; | |
| c->put_signed_rect_clamped[1] = put_signed_rect_clamped_10bit_c; | |
| c->put_signed_rect_clamped[2] = put_signed_rect_clamped_12bit_c; | |
| c->add_dirac_obmc[0] = add_obmc8_c; | |
| c->add_dirac_obmc[1] = add_obmc16_c; | |
| c->add_dirac_obmc[2] = add_obmc32_c; | |
| c->weight_dirac_pixels_tab[0] = weight_dirac_pixels8_c; | |
| c->weight_dirac_pixels_tab[1] = weight_dirac_pixels16_c; | |
| c->weight_dirac_pixels_tab[2] = weight_dirac_pixels32_c; | |
| c->biweight_dirac_pixels_tab[0] = biweight_dirac_pixels8_c; | |
| c->biweight_dirac_pixels_tab[1] = biweight_dirac_pixels16_c; | |
| c->biweight_dirac_pixels_tab[2] = biweight_dirac_pixels32_c; | |
| c->dequant_subband[0] = c->dequant_subband[2] = dequant_subband_int16_t_c; | |
| c->dequant_subband[1] = c->dequant_subband[3] = dequant_subband_int32_t_c; | |
| PIXFUNC(put, 8); | |
| PIXFUNC(put, 16); | |
| PIXFUNC(put, 32); | |
| PIXFUNC(avg, 8); | |
| PIXFUNC(avg, 16); | |
| PIXFUNC(avg, 32); | |
| #if ARCH_X86 | |
| ff_diracdsp_init_x86(c); | |
| #endif | |
| } |