libavcodec/x86/huffyuvencdsp_init.c

   1 /*
   2  * SIMD-optimized HuffYUV encoding functions
   3  * Copyright (c) 2000, 2001 Fabrice Bellard
   4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
   5  *
   6  * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
   7  *
   8  * This file is part of FFmpeg.
   9  *
  10  * FFmpeg is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * FFmpeg is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with FFmpeg; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  23  */
  24
  25 #include "libavutil/attributes.h"
  26 #include "libavutil/cpu.h"
  27 #include "libavutil/pixdesc.h"
  28 #include "libavutil/x86/cpu.h"
  29 #include "libavcodec/huffyuvencdsp.h"
  30
  31 void ff_diff_int16_sse2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
  32                         unsigned mask, int w);
  33 void ff_diff_int16_avx2(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
  34                         unsigned mask, int w);
  35 void ff_sub_hfyu_median_pred_int16_mmxext(uint16_t *dst, const uint16_t *src1, const uint16_t *src2,
  36                                           unsigned mask, int w, int *left, int *left_top);
  37
  38 av_cold void ff_huffyuvencdsp_init_x86(HuffYUVEncDSPContext *c, enum AVPixelFormat pix_fmt)
  39 {
  40     av_unused int cpu_flags = av_get_cpu_flags();
  41     const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(pix_fmt);
  42
  43     if (EXTERNAL_MMXEXT(cpu_flags) && pix_desc && pix_desc->comp[0].depth<16) {
  44         c->sub_hfyu_median_pred_int16 = ff_sub_hfyu_median_pred_int16_mmxext;
  45     }
  46
  47     if (EXTERNAL_SSE2(cpu_flags)) {
  48         c->diff_int16 = ff_diff_int16_sse2;
  49     }
  50
  51     if (EXTERNAL_AVX2_FAST(cpu_flags)) {
  52         c->diff_int16 = ff_diff_int16_avx2;
  53     }
  54 }