Libav 0.7.1
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00001 /* 00002 * software YUV to RGB converter 00003 * 00004 * Copyright (C) 2009 Konstantin Shishkov 00005 * 00006 * MMX/MMX2 template stuff (needed for fast movntq support), 00007 * 1,4,8bpp support and context / deglobalize stuff 00008 * by Michael Niedermayer (michaelni@gmx.at) 00009 * 00010 * This file is part of Libav. 00011 * 00012 * Libav is free software; you can redistribute it and/or 00013 * modify it under the terms of the GNU Lesser General Public 00014 * License as published by the Free Software Foundation; either 00015 * version 2.1 of the License, or (at your option) any later version. 00016 * 00017 * Libav is distributed in the hope that it will be useful, 00018 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00019 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00020 * Lesser General Public License for more details. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with Libav; if not, write to the Free Software 00024 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00025 */ 00026 00027 #include <stdio.h> 00028 #include <stdlib.h> 00029 #include <inttypes.h> 00030 #include <assert.h> 00031 00032 #include "config.h" 00033 #include "libswscale/rgb2rgb.h" 00034 #include "libswscale/swscale.h" 00035 #include "libswscale/swscale_internal.h" 00036 #include "libavutil/x86_cpu.h" 00037 #include "libavutil/cpu.h" 00038 00039 #define DITHER1XBPP // only for MMX 00040 00041 /* hope these constant values are cache line aligned */ 00042 DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL; 00043 DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL; 00044 DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL; 00045 DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL; 00046 DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL; 00047 DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL; 00048 00049 //MMX versions 00050 #if HAVE_MMX 00051 #undef RENAME 00052 #undef COMPILE_TEMPLATE_MMX2 00053 #define COMPILE_TEMPLATE_MMX2 0 00054 #define RENAME(a) a ## _MMX 00055 #include "yuv2rgb_template.c" 00056 #endif /* HAVE_MMX */ 00057 00058 //MMX2 versions 00059 #if HAVE_MMX2 00060 #undef RENAME 00061 #undef COMPILE_TEMPLATE_MMX2 00062 #define COMPILE_TEMPLATE_MMX2 1 00063 #define RENAME(a) a ## _MMX2 00064 #include "yuv2rgb_template.c" 00065 #endif /* HAVE_MMX2 */ 00066 00067 SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c) 00068 { 00069 int cpu_flags = av_get_cpu_flags(); 00070 00071 if (c->srcFormat != PIX_FMT_YUV420P && 00072 c->srcFormat != PIX_FMT_YUVA420P) 00073 return NULL; 00074 00075 #if HAVE_MMX2 00076 if (cpu_flags & AV_CPU_FLAG_MMX2) { 00077 switch (c->dstFormat) { 00078 case PIX_FMT_RGB24: return yuv420_rgb24_MMX2; 00079 case PIX_FMT_BGR24: return yuv420_bgr24_MMX2; 00080 } 00081 } 00082 #endif 00083 00084 if (cpu_flags & AV_CPU_FLAG_MMX) { 00085 switch (c->dstFormat) { 00086 case PIX_FMT_RGB32: 00087 if (c->srcFormat == PIX_FMT_YUVA420P) { 00088 #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA 00089 return yuva420_rgb32_MMX; 00090 #endif 00091 break; 00092 } else return yuv420_rgb32_MMX; 00093 case PIX_FMT_BGR32: 00094 if (c->srcFormat == PIX_FMT_YUVA420P) { 00095 #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA 00096 return yuva420_bgr32_MMX; 00097 #endif 00098 break; 00099 } else return yuv420_bgr32_MMX; 00100 case PIX_FMT_RGB24: return yuv420_rgb24_MMX; 00101 case PIX_FMT_BGR24: return yuv420_bgr24_MMX; 00102 case PIX_FMT_RGB565: return yuv420_rgb16_MMX; 00103 case PIX_FMT_RGB555: return yuv420_rgb15_MMX; 00104 } 00105 } 00106 00107 return NULL; 00108 }