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 Libav. 11 * 12 * Libav 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 * Libav 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 Libav; 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#include "libavutil/cpu.h" 38 39#define DITHER1XBPP // only for MMX 40 41/* hope these constant values are cache line aligned */ 42DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL; 43DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL; 44DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL; 45DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL; 46DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL; 47DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL; 48 49//MMX versions 50#if HAVE_MMX 51#undef RENAME 52#undef COMPILE_TEMPLATE_MMX2 53#define COMPILE_TEMPLATE_MMX2 0 54#define RENAME(a) a ## _MMX 55#include "yuv2rgb_template.c" 56#endif /* HAVE_MMX */ 57 58//MMX2 versions 59#if HAVE_MMX2 60#undef RENAME 61#undef COMPILE_TEMPLATE_MMX2 62#define COMPILE_TEMPLATE_MMX2 1 63#define RENAME(a) a ## _MMX2 64#include "yuv2rgb_template.c" 65#endif /* HAVE_MMX2 */ 66 67SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c) 68{ 69 int cpu_flags = av_get_cpu_flags(); 70 71 if (c->srcFormat != PIX_FMT_YUV420P && 72 c->srcFormat != PIX_FMT_YUVA420P) 73 return NULL; 74 75#if HAVE_MMX2 76 if (cpu_flags & AV_CPU_FLAG_MMX2) { 77 switch (c->dstFormat) { 78 case PIX_FMT_RGB24: return yuv420_rgb24_MMX2; 79 case PIX_FMT_BGR24: return yuv420_bgr24_MMX2; 80 } 81 } 82#endif 83 84 if (cpu_flags & AV_CPU_FLAG_MMX) { 85 switch (c->dstFormat) { 86 case PIX_FMT_RGB32: 87 if (c->srcFormat == PIX_FMT_YUVA420P) { 88#if HAVE_7REGS && CONFIG_SWSCALE_ALPHA 89 return yuva420_rgb32_MMX; 90#endif 91 break; 92 } else return yuv420_rgb32_MMX; 93 case PIX_FMT_BGR32: 94 if (c->srcFormat == PIX_FMT_YUVA420P) { 95#if HAVE_7REGS && CONFIG_SWSCALE_ALPHA 96 return yuva420_bgr32_MMX; 97#endif 98 break; 99 } else return yuv420_bgr32_MMX; 100 case PIX_FMT_RGB24: return yuv420_rgb24_MMX; 101 case PIX_FMT_BGR24: return yuv420_bgr24_MMX; 102 case PIX_FMT_RGB565: return yuv420_rgb16_MMX; 103 case PIX_FMT_RGB555: return yuv420_rgb15_MMX; 104 } 105 } 106 107 return NULL; 108} 109