2 * software YUV to RGB converter
4 * Copyright (C) 2009 Konstantin Shishkov
6 * MMX/MMXEXT 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/attributes.h"
37 #include "libavutil/x86/asm.h"
38 #include "libavutil/cpu.h"
42 #define DITHER1XBPP // only for MMX
44 /* hope these constant values are cache line aligned */
45 DECLARE_ASM_CONST(8, uint64_t, mmx_00ffw) = 0x00ff00ff00ff00ffULL;
46 DECLARE_ASM_CONST(8, uint64_t, mmx_redmask) = 0xf8f8f8f8f8f8f8f8ULL;
47 DECLARE_ASM_CONST(8, uint64_t, mmx_grnmask) = 0xfcfcfcfcfcfcfcfcULL;
48 DECLARE_ASM_CONST(8, uint64_t, pb_e0) = 0xe0e0e0e0e0e0e0e0ULL;
49 DECLARE_ASM_CONST(8, uint64_t, pb_03) = 0x0303030303030303ULL;
50 DECLARE_ASM_CONST(8, uint64_t, pb_07) = 0x0707070707070707ULL;
55 #undef COMPILE_TEMPLATE_MMXEXT
56 #define COMPILE_TEMPLATE_MMXEXT 0
57 #define RENAME(a) a ## _MMX
58 #include "yuv2rgb_template.c"
59 #endif /* HAVE_MMX_INLINE */
62 #if HAVE_MMXEXT_INLINE
64 #undef COMPILE_TEMPLATE_MMXEXT
65 #define COMPILE_TEMPLATE_MMXEXT 1
66 #define RENAME(a) a ## _MMXEXT
67 #include "yuv2rgb_template.c"
68 #endif /* HAVE_MMXEXT_INLINE */
70 #endif /* HAVE_INLINE_ASM */
72 av_cold SwsFunc ff_yuv2rgb_init_mmx(SwsContext *c)
75 int cpu_flags = av_get_cpu_flags();
77 #if HAVE_MMXEXT_INLINE
78 if (cpu_flags & AV_CPU_FLAG_MMXEXT) {
79 switch (c->dstFormat) {
80 case AV_PIX_FMT_RGB24:
81 return yuv420_rgb24_MMXEXT;
82 case AV_PIX_FMT_BGR24:
83 return yuv420_bgr24_MMXEXT;
88 if (cpu_flags & AV_CPU_FLAG_MMX) {
89 switch (c->dstFormat) {
90 case AV_PIX_FMT_RGB32:
91 if (c->srcFormat == AV_PIX_FMT_YUVA420P) {
92 #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
93 return yuva420_rgb32_MMX;
96 } else return yuv420_rgb32_MMX;
97 case AV_PIX_FMT_BGR32:
98 if (c->srcFormat == AV_PIX_FMT_YUVA420P) {
99 #if HAVE_7REGS && CONFIG_SWSCALE_ALPHA
100 return yuva420_bgr32_MMX;
103 } else return yuv420_bgr32_MMX;
104 case AV_PIX_FMT_RGB24: return yuv420_rgb24_MMX;
105 case AV_PIX_FMT_BGR24: return yuv420_bgr24_MMX;
106 case AV_PIX_FMT_RGB565: return yuv420_rgb16_MMX;
107 case AV_PIX_FMT_RGB555: return yuv420_rgb15_MMX;
110 #endif /* HAVE_INLINE_ASM */