Libav
rgb2rgb.c
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1 /*
2  * software RGB to RGB converter
3  * pluralize by software PAL8 to RGB converter
4  * software YUV to YUV converter
5  * software YUV to RGB converter
6  * Written by Nick Kurshev.
7  * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
8  *
9  * This file is part of Libav.
10  *
11  * Libav is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU Lesser General Public
13  * License as published by the Free Software Foundation; either
14  * version 2.1 of the License, or (at your option) any later version.
15  *
16  * Libav is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19  * Lesser General Public License for more details.
20  *
21  * You should have received a copy of the GNU Lesser General Public
22  * License along with Libav; if not, write to the Free Software
23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24  */
25 
26 #include <inttypes.h>
27 
28 #include "libavutil/attributes.h"
29 #include "libavutil/bswap.h"
30 #include "config.h"
31 #include "rgb2rgb.h"
32 #include "swscale.h"
33 #include "swscale_internal.h"
34 
35 void (*rgb32tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);
36 void (*rgb32tobgr16)(const uint8_t *src, uint8_t *dst, int src_size);
37 void (*rgb32tobgr15)(const uint8_t *src, uint8_t *dst, int src_size);
38 void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, int src_size);
39 void (*rgb24tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);
40 void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, int src_size);
41 void (*rgb24tobgr15)(const uint8_t *src, uint8_t *dst, int src_size);
42 void (*rgb16tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);
43 void (*rgb15tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);
44 
45 void (*rgb32to16)(const uint8_t *src, uint8_t *dst, int src_size);
46 void (*rgb32to15)(const uint8_t *src, uint8_t *dst, int src_size);
47 void (*rgb24to16)(const uint8_t *src, uint8_t *dst, int src_size);
48 void (*rgb24to15)(const uint8_t *src, uint8_t *dst, int src_size);
49 void (*rgb16to32)(const uint8_t *src, uint8_t *dst, int src_size);
50 void (*rgb16to15)(const uint8_t *src, uint8_t *dst, int src_size);
51 void (*rgb15to16)(const uint8_t *src, uint8_t *dst, int src_size);
52 void (*rgb15to32)(const uint8_t *src, uint8_t *dst, int src_size);
53 
54 void (*shuffle_bytes_2103)(const uint8_t *src, uint8_t *dst, int src_size);
55 
56 void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc,
57  const uint8_t *vsrc, uint8_t *dst,
58  int width, int height,
59  int lumStride, int chromStride, int dstStride);
60 void (*yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc,
61  const uint8_t *vsrc, uint8_t *dst,
62  int width, int height,
63  int lumStride, int chromStride, int dstStride);
64 void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc,
65  const uint8_t *vsrc, uint8_t *dst,
66  int width, int height,
67  int lumStride, int chromStride, int dstStride);
68 void (*yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc,
69  const uint8_t *vsrc, uint8_t *dst,
70  int width, int height,
71  int lumStride, int chromStride, int dstStride);
72 void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst,
73  uint8_t *udst, uint8_t *vdst,
74  int width, int height,
75  int lumStride, int chromStride, int srcStride);
76 void (*rgb24toyv12)(const uint8_t *src, uint8_t *ydst,
77  uint8_t *udst, uint8_t *vdst,
78  int width, int height,
79  int lumStride, int chromStride, int srcStride);
80 void (*planar2x)(const uint8_t *src, uint8_t *dst, int width, int height,
81  int srcStride, int dstStride);
82 void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst,
83  int width, int height, int src1Stride,
84  int src2Stride, int dstStride);
85 void (*deinterleaveBytes)(const uint8_t *src, uint8_t *dst1, uint8_t *dst2,
86  int width, int height, int srcStride,
87  int dst1Stride, int dst2Stride);
88 void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
89  uint8_t *dst1, uint8_t *dst2,
90  int width, int height,
91  int srcStride1, int srcStride2,
92  int dstStride1, int dstStride2);
93 void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2,
94  const uint8_t *src3, uint8_t *dst,
95  int width, int height,
96  int srcStride1, int srcStride2,
97  int srcStride3, int dstStride);
98 void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
99  const uint8_t *src, int width, int height,
100  int lumStride, int chromStride, int srcStride);
101 void (*uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
102  const uint8_t *src, int width, int height,
103  int lumStride, int chromStride, int srcStride);
104 void (*yuyvtoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
105  const uint8_t *src, int width, int height,
106  int lumStride, int chromStride, int srcStride);
107 void (*yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
108  const uint8_t *src, int width, int height,
109  int lumStride, int chromStride, int srcStride);
110 
111 #define RGB2YUV_SHIFT 8
112 #define BY ((int)( 0.098 * (1 << RGB2YUV_SHIFT) + 0.5))
113 #define BV ((int)(-0.071 * (1 << RGB2YUV_SHIFT) + 0.5))
114 #define BU ((int)( 0.439 * (1 << RGB2YUV_SHIFT) + 0.5))
115 #define GY ((int)( 0.504 * (1 << RGB2YUV_SHIFT) + 0.5))
116 #define GV ((int)(-0.368 * (1 << RGB2YUV_SHIFT) + 0.5))
117 #define GU ((int)(-0.291 * (1 << RGB2YUV_SHIFT) + 0.5))
118 #define RY ((int)( 0.257 * (1 << RGB2YUV_SHIFT) + 0.5))
119 #define RV ((int)( 0.439 * (1 << RGB2YUV_SHIFT) + 0.5))
120 #define RU ((int)(-0.148 * (1 << RGB2YUV_SHIFT) + 0.5))
121 
122 //plain C versions
123 #include "rgb2rgb_template.c"
124 
125 /*
126  * RGB15->RGB16 original by Strepto/Astral
127  * ported to gcc & bugfixed : A'rpi
128  * MMXEXT, 3DNOW optimization by Nick Kurshev
129  * 32-bit C version, and and&add trick by Michael Niedermayer
130  */
131 
133 {
134  rgb2rgb_init_c();
135  if (ARCH_X86)
137 }
138 
139 void rgb32to24(const uint8_t *src, uint8_t *dst, int src_size)
140 {
141  int i, num_pixels = src_size >> 2;
142 
143  for (i = 0; i < num_pixels; i++) {
144 #if HAVE_BIGENDIAN
145  /* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */
146  dst[3 * i + 0] = src[4 * i + 1];
147  dst[3 * i + 1] = src[4 * i + 2];
148  dst[3 * i + 2] = src[4 * i + 3];
149 #else
150  dst[3 * i + 0] = src[4 * i + 2];
151  dst[3 * i + 1] = src[4 * i + 1];
152  dst[3 * i + 2] = src[4 * i + 0];
153 #endif
154  }
155 }
156 
157 void rgb24to32(const uint8_t *src, uint8_t *dst, int src_size)
158 {
159  int i;
160 
161  for (i = 0; 3 * i < src_size; i++) {
162 #if HAVE_BIGENDIAN
163  /* RGB24 (= R, G, B) -> BGR32 (= A, R, G, B) */
164  dst[4 * i + 0] = 255;
165  dst[4 * i + 1] = src[3 * i + 0];
166  dst[4 * i + 2] = src[3 * i + 1];
167  dst[4 * i + 3] = src[3 * i + 2];
168 #else
169  dst[4 * i + 0] = src[3 * i + 2];
170  dst[4 * i + 1] = src[3 * i + 1];
171  dst[4 * i + 2] = src[3 * i + 0];
172  dst[4 * i + 3] = 255;
173 #endif
174  }
175 }
176 
177 void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
178 {
179  uint8_t *d = dst;
180  const uint16_t *s = (const uint16_t *)src;
181  const uint16_t *end = s + src_size / 2;
182 
183  while (s < end) {
184  register uint16_t bgr = *s++;
185 #if HAVE_BIGENDIAN
186  *d++ = 255;
187  *d++ = (bgr & 0x1F) << 3;
188  *d++ = (bgr & 0x7E0) >> 3;
189  *d++ = (bgr & 0xF800) >> 8;
190 #else
191  *d++ = (bgr & 0xF800) >> 8;
192  *d++ = (bgr & 0x7E0) >> 3;
193  *d++ = (bgr & 0x1F) << 3;
194  *d++ = 255;
195 #endif
196  }
197 }
198 
199 void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size)
200 {
201  uint16_t rgb, r, g, b;
202  uint16_t *d = (uint16_t *)dst;
203  const uint16_t *s = (const uint16_t *)src;
204  const uint16_t *end = s + src_size / 2;
205 
206  while (s < end) {
207  rgb = *s++;
208  r = rgb & 0xF00;
209  g = rgb & 0x0F0;
210  b = rgb & 0x00F;
211  r = (r << 3) | ((r & 0x800) >> 1);
212  g = (g << 2) | ((g & 0x080) >> 2);
213  b = (b << 1) | ( b >> 3);
214  *d++ = r | g | b;
215  }
216 }
217 
218 void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size)
219 {
220  uint8_t *d = dst;
221  const uint16_t *s = (const uint16_t *)src;
222  const uint16_t *end = s + src_size / 2;
223 
224  while (s < end) {
225  register uint16_t bgr = *s++;
226  *d++ = (bgr & 0xF800) >> 8;
227  *d++ = (bgr & 0x7E0) >> 3;
228  *d++ = (bgr & 0x1F) << 3;
229  }
230 }
231 
232 void rgb16tobgr16(const uint8_t *src, uint8_t *dst, int src_size)
233 {
234  int i, num_pixels = src_size >> 1;
235 
236  for (i = 0; i < num_pixels; i++) {
237  unsigned rgb = ((const uint16_t *)src)[i];
238  ((uint16_t *)dst)[i] = (rgb >> 11) | (rgb & 0x7E0) | (rgb << 11);
239  }
240 }
241 
242 void rgb16tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
243 {
244  int i, num_pixels = src_size >> 1;
245 
246  for (i = 0; i < num_pixels; i++) {
247  unsigned rgb = ((const uint16_t *)src)[i];
248  ((uint16_t *)dst)[i] = (rgb >> 11) | ((rgb & 0x7C0) >> 1) | ((rgb & 0x1F) << 10);
249  }
250 }
251 
252 void rgb15tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
253 {
254  uint8_t *d = dst;
255  const uint16_t *s = (const uint16_t *)src;
256  const uint16_t *end = s + src_size / 2;
257 
258  while (s < end) {
259  register uint16_t bgr = *s++;
260 #if HAVE_BIGENDIAN
261  *d++ = 255;
262  *d++ = (bgr & 0x1F) << 3;
263  *d++ = (bgr & 0x3E0) >> 2;
264  *d++ = (bgr & 0x7C00) >> 7;
265 #else
266  *d++ = (bgr & 0x7C00) >> 7;
267  *d++ = (bgr & 0x3E0) >> 2;
268  *d++ = (bgr & 0x1F) << 3;
269  *d++ = 255;
270 #endif
271  }
272 }
273 
274 void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size)
275 {
276  uint8_t *d = dst;
277  const uint16_t *s = (const uint16_t *)src;
278  const uint16_t *end = s + src_size / 2;
279 
280  while (s < end) {
281  register uint16_t bgr = *s++;
282  *d++ = (bgr & 0x7C00) >> 7;
283  *d++ = (bgr & 0x3E0) >> 2;
284  *d++ = (bgr & 0x1F) << 3;
285  }
286 }
287 
288 void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size)
289 {
290  int i, num_pixels = src_size >> 1;
291 
292  for (i = 0; i < num_pixels; i++) {
293  unsigned rgb = ((const uint16_t *)src)[i];
294  ((uint16_t *)dst)[i] = ((rgb & 0x7C00) >> 10) | ((rgb & 0x3E0) << 1) | (rgb << 11);
295  }
296 }
297 
298 void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
299 {
300  int i, num_pixels = src_size >> 1;
301 
302  for (i = 0; i < num_pixels; i++) {
303  unsigned rgb = ((const uint16_t *)src)[i];
304  unsigned br = rgb & 0x7C1F;
305  ((uint16_t *)dst)[i] = (br >> 10) | (rgb & 0x3E0) | (br << 10);
306  }
307 }
308 
309 void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size)
310 {
311  uint16_t *d = (uint16_t *)dst;
312  uint16_t *s = (uint16_t *)src;
313  int i, num_pixels = src_size >> 1;
314 
315  for (i = 0; i < num_pixels; i++) {
316  unsigned rgb = s[i];
317  d[i] = (rgb << 8 | rgb & 0xF0 | rgb >> 8) & 0xFFF;
318  }
319 }
320 
321 void bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size)
322 {
323  int i, num_pixels = src_size;
324 
325  for (i = 0; i < num_pixels; i++) {
326  register uint8_t rgb = src[i];
327  unsigned r = (rgb & 0x07);
328  unsigned g = (rgb & 0x38) >> 3;
329  unsigned b = (rgb & 0xC0) >> 6;
330  dst[i] = ((b << 1) & 0x07) | ((g & 0x07) << 3) | ((r & 0x03) << 6);
331  }
332 }
333 
334 #define DEFINE_SHUFFLE_BYTES(a, b, c, d) \
335 void shuffle_bytes_ ## a ## b ## c ## d(const uint8_t *src, \
336  uint8_t *dst, int src_size) \
337 { \
338  int i; \
339  \
340  for (i = 0; i < src_size; i += 4) { \
341  dst[i + 0] = src[i + a]; \
342  dst[i + 1] = src[i + b]; \
343  dst[i + 2] = src[i + c]; \
344  dst[i + 3] = src[i + d]; \
345  } \
346 }
347 
348 DEFINE_SHUFFLE_BYTES(0, 3, 2, 1)
349 DEFINE_SHUFFLE_BYTES(1, 2, 3, 0)
350 DEFINE_SHUFFLE_BYTES(3, 0, 1, 2)
351 DEFINE_SHUFFLE_BYTES(3, 2, 1, 0)
void(* yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, int width, int height, int lumStride, int chromStride, int dstStride)
Height should be a multiple of 2 and width should be a multiple of 16.
Definition: rgb2rgb.c:56
void(* rgb15to32)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:52
void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:177
void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:309
void rgb16tobgr16(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:232
void(* rgb32tobgr16)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:36
#define ARCH_X86
Definition: config.h:33
av_cold void rgb2rgb_init_x86(void)
Definition: rgb2rgb.c:141
void(* rgb16tobgr24)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:42
Macro definitions for various function/variable attributes.
void(* rgb24tobgr16)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:40
void(* shuffle_bytes_2103)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:54
void(* rgb32to16)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:45
uint8_t
#define av_cold
Definition: attributes.h:66
void(* yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, int width, int height, int lumStride, int chromStride, int dstStride)
Height should be a multiple of 2 and width should be a multiple of 16.
Definition: rgb2rgb.c:60
#define b
Definition: input.c:52
void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:218
external api for the swscale stuff
void(* rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int width, int height, int lumStride, int chromStride, int srcStride)
Height should be a multiple of 2 and width should be a multiple of 2.
Definition: rgb2rgb.c:76
#define r
Definition: input.c:51
#define DEFINE_SHUFFLE_BYTES(a, b, c, d)
Definition: rgb2rgb.c:334
static av_cold void rgb2rgb_init_c(void)
g
Definition: yuv2rgb.c:535
void(* rgb15tobgr24)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:43
av_cold void sws_rgb2rgb_init(void)
Definition: rgb2rgb.c:132
void(* rgb32tobgr15)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:37
void(* rgb24to16)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:47
void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:288
void(* interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst, int width, int height, int src1Stride, int src2Stride, int dstStride)
Definition: rgb2rgb.c:82
void(* yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3, uint8_t *dst, int width, int height, int srcStride1, int srcStride2, int srcStride3, int dstStride)
Definition: rgb2rgb.c:93
void(* yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, int width, int height, int lumStride, int chromStride, int dstStride)
Width should be a multiple of 16.
Definition: rgb2rgb.c:64
void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:199
void(* rgb24tobgr32)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:38
void(* rgb16to15)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:50
static int width
Definition: utils.c:156
void(* deinterleaveBytes)(const uint8_t *src, uint8_t *dst1, uint8_t *dst2, int width, int height, int srcStride, int dst1Stride, int dst2Stride)
Definition: rgb2rgb.c:85
void(* yuyvtoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, int width, int height, int lumStride, int chromStride, int srcStride)
Definition: rgb2rgb.c:104
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
void bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:321
void rgb32to24(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:139
void(* yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, int width, int height, int lumStride, int chromStride, int dstStride)
Width should be a multiple of 16.
Definition: rgb2rgb.c:68
byte swapping routines
void(* uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, int width, int height, int lumStride, int chromStride, int srcStride)
Definition: rgb2rgb.c:101
void(* rgb24to15)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:48
void rgb24to32(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:157
void(* uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, int width, int height, int lumStride, int chromStride, int srcStride)
Definition: rgb2rgb.c:98
void(* rgb16to32)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:49
void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:298
int height
Definition: gxfenc.c:72
void(* rgb24tobgr24)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:39
void(* rgb24tobgr15)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:41
void(* rgb32to15)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:46
void rgb15tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:252
void(* planar2x)(const uint8_t *src, uint8_t *dst, int width, int height, int srcStride, int dstStride)
Definition: rgb2rgb.c:80
void(* rgb32tobgr24)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:35
void(* yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int width, int height, int lumStride, int chromStride, int srcStride)
Height should be a multiple of 2 and width should be a multiple of 16.
Definition: rgb2rgb.c:72
void rgb16tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:242
void(* vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst1, uint8_t *dst2, int width, int height, int srcStride1, int srcStride2, int dstStride1, int dstStride2)
Definition: rgb2rgb.c:88
void(* rgb15to16)(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:51
void(* yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, int width, int height, int lumStride, int chromStride, int srcStride)
Definition: rgb2rgb.c:107
void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size)
Definition: rgb2rgb.c:274