1 /*
2 * software YUV to RGB converter
3 *
4 * Copyright (C) 2009 Konstantin Shishkov
5 *
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)
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
31 #include "config.h"
32 #include "libswscale/rgb2rgb.h"
33 #include "libswscale/swscale.h"
34 #include "libswscale/swscale_internal.h"
35 #include "libavutil/attributes.h"
36 #include "libavutil/x86/asm.h"
37 #include "libavutil/x86/cpu.h"
38 #include "libavutil/cpu.h"
39
40 #if HAVE_X86ASM
41
42 #define DITHER1XBPP // only for MMX
43
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;
51
52 //MMX versions
53 #if HAVE_MMX
54 #undef RENAME
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 */
60
61 // MMXEXT versions
62 #if HAVE_MMXEXT
63 #undef RENAME
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 */
69
70 //SSSE3 versions
71 #if HAVE_SSSE3
72 #undef RENAME
73 #undef COMPILE_TEMPLATE_MMXEXT
74 #define COMPILE_TEMPLATE_MMXEXT 0
75 #define RENAME(a) a ## _ssse3
76 #include "yuv2rgb_template.c"
77 #endif
78
79 #endif /* HAVE_X86ASM */
80
ff_yuv2rgb_init_x86(SwsContext * c)81 av_cold SwsFunc ff_yuv2rgb_init_x86(SwsContext *c)
82 {
83 #if HAVE_X86ASM
84 int cpu_flags = av_get_cpu_flags();
85
86 if (EXTERNAL_SSSE3(cpu_flags)) {
87 switch (c->dstFormat) {
88 case AV_PIX_FMT_RGB32:
89 if (c->srcFormat == AV_PIX_FMT_YUVA420P) {
90 #if CONFIG_SWSCALE_ALPHA
91 return yuva420_rgb32_ssse3;
92 #endif
93 break;
94 } else
95 return yuv420_rgb32_ssse3;
96 case AV_PIX_FMT_BGR32:
97 if (c->srcFormat == AV_PIX_FMT_YUVA420P) {
98 #if CONFIG_SWSCALE_ALPHA
99 return yuva420_bgr32_ssse3;
100 #endif
101 break;
102 } else
103 return yuv420_bgr32_ssse3;
104 case AV_PIX_FMT_RGB24:
105 return yuv420_rgb24_ssse3;
106 case AV_PIX_FMT_BGR24:
107 return yuv420_bgr24_ssse3;
108 case AV_PIX_FMT_RGB565:
109 return yuv420_rgb16_ssse3;
110 case AV_PIX_FMT_RGB555:
111 return yuv420_rgb15_ssse3;
112 }
113 }
114
115 if (EXTERNAL_MMXEXT(cpu_flags)) {
116 switch (c->dstFormat) {
117 case AV_PIX_FMT_RGB24:
118 return yuv420_rgb24_mmxext;
119 case AV_PIX_FMT_BGR24:
120 return yuv420_bgr24_mmxext;
121 }
122 }
123
124 if (EXTERNAL_MMX(cpu_flags)) {
125 switch (c->dstFormat) {
126 case AV_PIX_FMT_RGB32:
127 if (c->srcFormat == AV_PIX_FMT_YUVA420P) {
128 #if CONFIG_SWSCALE_ALPHA
129 return yuva420_rgb32_mmx;
130 #endif
131 break;
132 } else
133 return yuv420_rgb32_mmx;
134 case AV_PIX_FMT_BGR32:
135 if (c->srcFormat == AV_PIX_FMT_YUVA420P) {
136 #if CONFIG_SWSCALE_ALPHA
137 return yuva420_bgr32_mmx;
138 #endif
139 break;
140 } else
141 return yuv420_bgr32_mmx;
142 case AV_PIX_FMT_RGB24:
143 return yuv420_rgb24_mmx;
144 case AV_PIX_FMT_BGR24:
145 return yuv420_bgr24_mmx;
146 case AV_PIX_FMT_RGB565:
147 return yuv420_rgb16_mmx;
148 case AV_PIX_FMT_RGB555:
149 return yuv420_rgb15_mmx;
150 }
151 }
152
153 #endif /* HAVE_X86ASM */
154 return NULL;
155 }
156