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yuv2rgb.c
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1/*
2 * software YUV to RGB converter
3 *
4 * Copyright (C) 2001-2007 Michael Niedermayer
5 * Copyright (C) 2009-2010 Konstantin Shishkov
6 *
7 * MMX/MMXEXT template stuff (needed for fast movntq support),
8 * 1,4,8bpp support and context / deglobalize stuff
9 * by Michael Niedermayer (michaelni@gmx.at)
10 *
11 * This file is part of FFmpeg.
12 *
13 * FFmpeg is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2.1 of the License, or (at your option) any later version.
17 *
18 * FFmpeg is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 * Lesser General Public License for more details.
22 *
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with FFmpeg; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <inttypes.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/attributes.h"
37#include "libavutil/x86/asm.h"
38#include "libavutil/x86/cpu.h"
39#include "libavutil/cpu.h"
40
41#if HAVE_X86ASM
42
43#define YUV2RGB_LOOP(depth) \
44 h_size = (c->opts.dst_w + 7) & ~7; \
45 if (h_size * depth > FFABS(dstStride[0])) \
46 h_size -= 8; \
47 \
48 vshift = c->opts.src_format != AV_PIX_FMT_YUV422P; \
49 \
50 for (y = 0; y < srcSliceH; y++) { \
51 uint8_t *image = dst[0] + (y + srcSliceY) * dstStride[0]; \
52 const uint8_t *py = src[0] + y * srcStride[0]; \
53 const uint8_t *pu = src[1] + (y >> vshift) * srcStride[1]; \
54 const uint8_t *pv = src[2] + (y >> vshift) * srcStride[2]; \
55 x86_reg index = -h_size / 2; \
56
57extern void ff_yuv_420_rgb24_ssse3(x86_reg index, uint8_t *image, const uint8_t *pu_index,
58 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
59 const uint8_t *py_2index);
60extern void ff_yuv_420_bgr24_ssse3(x86_reg index, uint8_t *image, const uint8_t *pu_index,
61 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
62 const uint8_t *py_2index);
63
64extern void ff_yuv_420_rgb15_ssse3(x86_reg index, uint8_t *image, const uint8_t *pu_index,
65 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
66 const uint8_t *py_2index);
67extern void ff_yuv_420_rgb16_ssse3(x86_reg index, uint8_t *image, const uint8_t *pu_index,
68 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
69 const uint8_t *py_2index);
70extern void ff_yuv_420_rgb32_ssse3(x86_reg index, uint8_t *image, const uint8_t *pu_index,
71 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
72 const uint8_t *py_2index);
73extern void ff_yuv_420_bgr32_ssse3(x86_reg index, uint8_t *image, const uint8_t *pu_index,
74 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
75 const uint8_t *py_2index);
76extern void ff_yuva_420_rgb32_ssse3(x86_reg index, uint8_t *image, const uint8_t *pu_index,
77 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
78 const uint8_t *py_2index, const uint8_t *pa_2index);
79extern void ff_yuva_420_bgr32_ssse3(x86_reg index, uint8_t *image, const uint8_t *pu_index,
80 const uint8_t *pv_index, const uint64_t *pointer_c_dither,
81 const uint8_t *py_2index, const uint8_t *pa_2index);
82#if ARCH_X86_64
83extern void ff_yuv_420_gbrp24_ssse3(x86_reg index, uint8_t *image, uint8_t *dst_b, uint8_t *dst_r,
84 const uint8_t *pu_index, const uint8_t *pv_index,
85 const uint64_t *pointer_c_dither,
86 const uint8_t *py_2index);
87#endif
88
89static inline int yuv420_rgb15_ssse3(SwsInternal *c, const uint8_t *const src[],
90 const int srcStride[],
91 int srcSliceY, int srcSliceH,
92 uint8_t *const dst[], const int dstStride[])
93{
94 int y, h_size, vshift;
95
96 YUV2RGB_LOOP(2)
97
98 c->blueDither = ff_dither8[y & 1];
99 c->greenDither = ff_dither8[y & 1];
100 c->redDither = ff_dither8[(y + 1) & 1];
101
102 ff_yuv_420_rgb15_ssse3(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
103 }
104 return srcSliceH;
105}
106
107static inline int yuv420_rgb16_ssse3(SwsInternal *c, const uint8_t *const src[],
108 const int srcStride[],
109 int srcSliceY, int srcSliceH,
110 uint8_t *const dst[], const int dstStride[])
111{
112 int y, h_size, vshift;
113
114 YUV2RGB_LOOP(2)
115
116 c->blueDither = ff_dither8[y & 1];
117 c->greenDither = ff_dither4[y & 1];
118 c->redDither = ff_dither8[(y + 1) & 1];
119
120 ff_yuv_420_rgb16_ssse3(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
121 }
122 return srcSliceH;
123}
124
125static inline int yuv420_rgb32_ssse3(SwsInternal *c, const uint8_t *const src[],
126 const int srcStride[],
127 int srcSliceY, int srcSliceH,
128 uint8_t *const dst[], const int dstStride[])
129{
130 int y, h_size, vshift;
131
132 YUV2RGB_LOOP(4)
133
134 ff_yuv_420_rgb32_ssse3(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
135 }
136 return srcSliceH;
137}
138
139static inline int yuv420_bgr32_ssse3(SwsInternal *c, const uint8_t *const src[],
140 const int srcStride[],
141 int srcSliceY, int srcSliceH,
142 uint8_t *const dst[], const int dstStride[])
143{
144 int y, h_size, vshift;
145
146 YUV2RGB_LOOP(4)
147
148 ff_yuv_420_bgr32_ssse3(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
149 }
150 return srcSliceH;
151}
152
153static inline int yuva420_rgb32_ssse3(SwsInternal *c, const uint8_t *const src[],
154 const int srcStride[],
155 int srcSliceY, int srcSliceH,
156 uint8_t *const dst[], const int dstStride[])
157{
158 int y, h_size, vshift;
159 YUV2RGB_LOOP(4)
160
161 const uint8_t *pa = src[3] + y * srcStride[3];
162 ff_yuva_420_rgb32_ssse3(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index, pa - 2 * index);
163 }
164 return srcSliceH;
165}
166
167static inline int yuva420_bgr32_ssse3(SwsInternal *c, const uint8_t *const src[],
168 const int srcStride[],
169 int srcSliceY, int srcSliceH,
170 uint8_t *const dst[], const int dstStride[])
171{
172 int y, h_size, vshift;
173
174 YUV2RGB_LOOP(4)
175
176 const uint8_t *pa = src[3] + y * srcStride[3];
177 ff_yuva_420_bgr32_ssse3(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index, pa - 2 * index);
178 }
179 return srcSliceH;
180}
181
182static inline int yuv420_rgb24_ssse3(SwsInternal *c, const uint8_t *const src[],
183 const int srcStride[],
184 int srcSliceY, int srcSliceH,
185 uint8_t *const dst[], const int dstStride[])
186{
187 int y, h_size, vshift;
188
189 YUV2RGB_LOOP(3)
190
191 ff_yuv_420_rgb24_ssse3(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
192 }
193 return srcSliceH;
194}
195
196static inline int yuv420_bgr24_ssse3(SwsInternal *c, const uint8_t *const src[],
197 const int srcStride[],
198 int srcSliceY, int srcSliceH,
199 uint8_t *const dst[], const int dstStride[])
200{
201 int y, h_size, vshift;
202
203 YUV2RGB_LOOP(3)
204
205 ff_yuv_420_bgr24_ssse3(index, image, pu - index, pv - index, &(c->redDither), py - 2 * index);
206 }
207 return srcSliceH;
208}
209
210#if ARCH_X86_64
211static inline int yuv420_gbrp_ssse3(SwsInternal *c, const uint8_t *const src[],
212 const int srcStride[],
213 int srcSliceY, int srcSliceH,
214 uint8_t *const dst[], const int dstStride[])
215{
216 int y, h_size, vshift;
217
218 h_size = (c->opts.dst_w + 7) & ~7;
219 if (h_size > FFABS(dstStride[0]))
220 h_size -= 8;
221
222 vshift = c->opts.src_format != AV_PIX_FMT_YUV422P;
223
224 for (y = 0; y < srcSliceH; y++) {
225 uint8_t *dst_g = dst[0] + (y + srcSliceY) * dstStride[0];
226 uint8_t *dst_b = dst[1] + (y + srcSliceY) * dstStride[1];
227 uint8_t *dst_r = dst[2] + (y + srcSliceY) * dstStride[2];
228 const uint8_t *py = src[0] + y * srcStride[0];
229 const uint8_t *pu = src[1] + (y >> vshift) * srcStride[1];
230 const uint8_t *pv = src[2] + (y >> vshift) * srcStride[2];
231 x86_reg index = -h_size / 2;
232
233 ff_yuv_420_gbrp24_ssse3(index, dst_g, dst_b, dst_r, pu - index, pv - index, &(c->redDither), py - 2 * index);
234 }
235 return srcSliceH;
236}
237#endif
238
239#endif /* HAVE_X86ASM */
240
241av_cold SwsFunc ff_yuv2rgb_init_x86(SwsInternal *c)
242{
243#if HAVE_X86ASM
244 int cpu_flags = av_get_cpu_flags();
245
246 if (EXTERNAL_SSSE3(cpu_flags)) {
247 switch (c->opts.dst_format) {
248 case AV_PIX_FMT_RGB32:
249 if (c->opts.src_format == AV_PIX_FMT_YUVA420P) {
250#if CONFIG_SWSCALE_ALPHA
251 return yuva420_rgb32_ssse3;
252#endif
253 break;
254 } else
255 return yuv420_rgb32_ssse3;
256 case AV_PIX_FMT_BGR32:
257 if (c->opts.src_format == AV_PIX_FMT_YUVA420P) {
258#if CONFIG_SWSCALE_ALPHA
259 return yuva420_bgr32_ssse3;
260#endif
261 break;
262 } else
263 return yuv420_bgr32_ssse3;
264 case AV_PIX_FMT_RGB24:
265 return yuv420_rgb24_ssse3;
266 case AV_PIX_FMT_BGR24:
267 return yuv420_bgr24_ssse3;
268 case AV_PIX_FMT_RGB565:
269 return yuv420_rgb16_ssse3;
270 case AV_PIX_FMT_RGB555:
271 return yuv420_rgb15_ssse3;
272#if ARCH_X86_64
273 case AV_PIX_FMT_GBRP:
274 return yuv420_gbrp_ssse3;
275#endif
276 }
277 }
278
279#endif /* HAVE_X86ASM */
280 return NULL;
281}
dst
uint8_t ptrdiff_t const uint8_t ptrdiff_t int intptr_t intptr_t int int16_t * dst
Definition dsp.h:87
x86_reg
int x86_reg
Definition asm.h:71
return
return
Definition audioconvert.c:250
FFABS
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition common.h:74
NULL
#define NULL
Definition coverity.c:32
index
int index
Definition gxfenc.c:90
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition attributes.h:117
cpu_flags
static atomic_int cpu_flags
Definition cpu.c:56
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition cpu.c:109
EXTERNAL_SSSE3
#define EXTERNAL_SSSE3(flags)
Definition cpu.h:59
AV_PIX_FMT_BGR32
#define AV_PIX_FMT_BGR32
Definition pixfmt.h:519
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition pixfmt.h:75
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition pixfmt.h:77
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition pixfmt.h:108
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition pixfmt.h:76
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition pixfmt.h:165
AV_PIX_FMT_RGB565
#define AV_PIX_FMT_RGB565
Definition pixfmt.h:532
AV_PIX_FMT_RGB32
#define AV_PIX_FMT_RGB32
Definition pixfmt.h:517
AV_PIX_FMT_RGB555
#define AV_PIX_FMT_RGB555
Definition pixfmt.h:533
swscale.h
external API header
swscale_internal.h
ff_dither4
const uint64_t ff_dither4[2]
Definition swscale.c:33
ff_dither8
const uint64_t ff_dither8[2]
Definition swscale.c:37
SwsFunc
int(* SwsFunc)(SwsInternal *c, const uint8_t *const src[], const int srcStride[], int srcSliceY, int srcSliceH, uint8_t *const dst[], const int dstStride[])
Definition swscale_internal.h:99
src
#define src
Definition vp8dsp.c:248
c
static double c[64]
Definition vsrc_mptestsrc.c:89
ff_yuv2rgb_init_x86
av_cold SwsFunc ff_yuv2rgb_init_x86(SwsInternal *c)
Definition yuv2rgb.c:241
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