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  1. /*
  2.  * Lossless video DSP utils
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #include "../lossless_videodsp.h"
  22. #include "libavutil/pixdesc.h"
  23. #include "libavutil/x86/cpu.h"
  24.  
  25. void ff_add_int16_mmx(uint16_t *dst, const uint16_t *src, unsigned mask, int w);
  26. void ff_add_int16_sse2(uint16_t *dst, const uint16_t *src, unsigned mask, int w);
  27. void ff_diff_int16_mmx (uint16_t *dst, const uint16_t *src1, const uint16_t *src2, unsigned mask, int w);
  28. void ff_diff_int16_sse2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2, unsigned mask, int w);
  29. int ff_add_hfyu_left_pred_int16_ssse3(uint16_t *dst, const uint16_t *src, unsigned mask, int w, unsigned acc);
  30. int ff_add_hfyu_left_pred_int16_sse4(uint16_t *dst, const uint16_t *src, unsigned mask, int w, unsigned acc);
  31. void ff_add_hfyu_median_pred_int16_mmxext(uint16_t *dst, const uint16_t *top, const uint16_t *diff, unsigned mask, int w, int *left, int *left_top);
  32. void ff_sub_hfyu_median_pred_int16_mmxext(uint16_t *dst, const uint16_t *src1, const uint16_t *src2, unsigned mask, int w, int *left, int *left_top);
  33.  
  34.  
  35. void ff_llviddsp_init_x86(LLVidDSPContext *c, AVCodecContext *avctx)
  36. {
  37.     int cpu_flags = av_get_cpu_flags();
  38.     const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(avctx->pix_fmt);
  39.  
  40.     if (EXTERNAL_MMX(cpu_flags)) {
  41.         c->add_int16 = ff_add_int16_mmx;
  42.         c->diff_int16 = ff_diff_int16_mmx;
  43.     }
  44.  
  45.     if (EXTERNAL_MMXEXT(cpu_flags) && pix_desc->comp[0].depth_minus1<15) {
  46.         c->add_hfyu_median_pred_int16 = ff_add_hfyu_median_pred_int16_mmxext;
  47.         c->sub_hfyu_median_pred_int16 = ff_sub_hfyu_median_pred_int16_mmxext;
  48.     }
  49.  
  50.     if (EXTERNAL_SSE2(cpu_flags)) {
  51.         c->add_int16 = ff_add_int16_sse2;
  52.         c->diff_int16 = ff_diff_int16_sse2;
  53.     }
  54.  
  55.     if (EXTERNAL_SSSE3(cpu_flags)) {
  56.         c->add_hfyu_left_pred_int16 = ff_add_hfyu_left_pred_int16_ssse3;
  57.     }
  58.  
  59.     if (EXTERNAL_SSE4(cpu_flags)) {
  60.         c->add_hfyu_left_pred_int16 = ff_add_hfyu_left_pred_int16_sse4;
  61.     }
  62. }
  63.