x86/yuv2rgb_mmx.c

   1 /*
   2  * software YUV to RGB converter
   3  *
   4  * Copyright (C) 2009 Konstantin Shishkov
   5  *
   6  * MMX/MMX2 template stuff (needed for fast movntq support),
   7  * 1,4,8bpp support and context / deglobalize stuff
   8  * by Michael Niedermayer (michaelni@gmx.at)
   9  *
  10  * This file is part of FFmpeg.
  11  *
  12  * FFmpeg is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2.1 of the License, or (at your option) any later version.
  16  *
  17  * FFmpeg is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with FFmpeg; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  25  */
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <inttypes.h>
  30 #include <assert.h>
  31
  32 #include "config.h"
  33 #include "libswscale/rgb2rgb.h"
  34 #include "libswscale/swscale.h"
  35 #include "libswscale/swscale_internal.h"
  36 #include "libavutil/x86_cpu.h"
  37
  38 #define DITHER1XBPP // only for MMX
  39
  40 /* hope these constant values are cache line aligned */
  41 DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw)   = 0x00ff00ff00ff00ffULL;
  42 DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
  43 DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
  44 DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL;
  45 DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL;
  46 DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL;
  47
  48 //MMX versions
  49 #undef RENAME
  50 #undef HAVE_MMX2
  51 #undef HAVE_AMD3DNOW
  52 #define HAVE_MMX2 0
  53 #define HAVE_AMD3DNOW 0
  54 #define RENAME(a) a ## _MMX
  55 #include "yuv2rgb_template.c"
  56
  57 //MMX2 versions
  58 #undef RENAME
  59 #undef HAVE_MMX2
  60 #define HAVE_MMX2 1
  61 #define RENAME(a) a ## _MMX2
  62 #include "yuv2rgb_template.c"
  63
  64 SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c)
  65 {
  66     if (c->flags & SWS_CPU_CAPS_MMX2) {
  67         switch (c->dstFormat) {
  68         case PIX_FMT_RGB32:
  69             if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {
  70                 if (HAVE_7REGS) return yuva420_rgb32_MMX2;
  71                 break;
  72             } else return yuv420_rgb32_MMX2;
  73         case PIX_FMT_BGR32:
  74             if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {
  75                 if (HAVE_7REGS) return yuva420_bgr32_MMX2;
  76                 break;
  77             } else return yuv420_bgr32_MMX2;
  78         case PIX_FMT_RGB24:  return yuv420_rgb24_MMX2;
  79         case PIX_FMT_BGR24:  return yuv420_bgr24_MMX2;
  80         case PIX_FMT_RGB565: return yuv420_rgb16_MMX2;
  81         case PIX_FMT_RGB555: return yuv420_rgb15_MMX2;
  82         }
  83     }
  84     if (c->flags & SWS_CPU_CAPS_MMX) {
  85         switch (c->dstFormat) {
  86         case PIX_FMT_RGB32:
  87             if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {
  88                 if (HAVE_7REGS) return yuva420_rgb32_MMX;
  89                 break;
  90             } else return yuv420_rgb32_MMX;
  91         case PIX_FMT_BGR32:
  92             if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) {
  93                 if (HAVE_7REGS) return yuva420_bgr32_MMX;
  94                 break;
  95             } else return yuv420_bgr32_MMX;
  96         case PIX_FMT_RGB24:  return yuv420_rgb24_MMX;
  97         case PIX_FMT_BGR24:  return yuv420_bgr24_MMX;
  98         case PIX_FMT_RGB565: return yuv420_rgb16_MMX;
  99         case PIX_FMT_RGB555: return yuv420_rgb15_MMX;
 100         }
 101     }
 102
 103     return NULL;
 104 }