2 * software YUV to RGB converter
4 * Copyright (C) 2009 Konstantin Shishkov
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)
10 * This file is part of FFmpeg.
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.
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.
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
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"
39 #define DITHER1XBPP // only for MMX
41 /* hope these constant values are cache line aligned */
42 DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL;
43 DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
44 DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
45 DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL;
46 DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL;
47 DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL;
52 #undef COMPILE_TEMPLATE_MMX2
53 #define COMPILE_TEMPLATE_MMX2 0
54 #define RENAME(a) a ## _MMX
55 #include "yuv2rgb_template.c"
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 */
67 SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c)
69 int cpu_flags = av_get_cpu_flags();
71 if (c->srcFormat != PIX_FMT_YUV420P &&
72 c->srcFormat != PIX_FMT_YUVA420P)
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;
84 if (cpu_flags & AV_CPU_FLAG_MMX) {
85 switch (c->dstFormat) {
87 if (c->srcFormat == PIX_FMT_YUVA420P) {
88 #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
89 return yuva420_rgb32_MMX;
92 } else return yuv420_rgb32_MMX;
94 if (c->srcFormat == PIX_FMT_YUVA420P) {
95 #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
96 return yuva420_bgr32_MMX;
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;