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rgb2rgb_template.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  * lot of big-endian byte order fixes by Alex Beregszaszi
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 <stddef.h>
28 
29 #include "libavutil/attributes.h"
30 
31 static inline void rgb24tobgr32_c(const uint8_t *src, uint8_t *dst,
32  int src_size)
33 {
34  uint8_t *dest = dst;
35  const uint8_t *s = src;
36  const uint8_t *end = s + src_size;
37 
38  while (s < end) {
39 #if HAVE_BIGENDIAN
40  /* RGB24 (= R, G, B) -> RGB32 (= A, B, G, R) */
41  *dest++ = 255;
42  *dest++ = s[2];
43  *dest++ = s[1];
44  *dest++ = s[0];
45  s += 3;
46 #else
47  *dest++ = *s++;
48  *dest++ = *s++;
49  *dest++ = *s++;
50  *dest++ = 255;
51 #endif
52  }
53 }
54 
55 static inline void rgb32tobgr24_c(const uint8_t *src, uint8_t *dst,
56  int src_size)
57 {
58  uint8_t *dest = dst;
59  const uint8_t *s = src;
60  const uint8_t *end = s + src_size;
61 
62  while (s < end) {
63 #if HAVE_BIGENDIAN
64  /* RGB32 (= A, B, G, R) -> RGB24 (= R, G, B) */
65  s++;
66  dest[2] = *s++;
67  dest[1] = *s++;
68  dest[0] = *s++;
69  dest += 3;
70 #else
71  *dest++ = *s++;
72  *dest++ = *s++;
73  *dest++ = *s++;
74  s++;
75 #endif
76  }
77 }
78 
79 /*
80  * original by Strepto/Astral
81  * ported to gcc & bugfixed: A'rpi
82  * MMXEXT, 3DNOW optimization by Nick Kurshev
83  * 32-bit C version, and and&add trick by Michael Niedermayer
84  */
85 static inline void rgb15to16_c(const uint8_t *src, uint8_t *dst, int src_size)
86 {
87  register uint8_t *d = dst;
88  register const uint8_t *s = src;
89  register const uint8_t *end = s + src_size;
90  const uint8_t *mm_end = end - 3;
91 
92  while (s < mm_end) {
93  register unsigned x = *((const uint32_t *)s);
94  *((uint32_t *)d) = (x & 0x7FFF7FFF) + (x & 0x7FE07FE0);
95  d += 4;
96  s += 4;
97  }
98  if (s < end) {
99  register unsigned short x = *((const uint16_t *)s);
100  *((uint16_t *)d) = (x & 0x7FFF) + (x & 0x7FE0);
101  }
102 }
103 
104 static inline void rgb16to15_c(const uint8_t *src, uint8_t *dst, int src_size)
105 {
106  register uint8_t *d = dst;
107  register const uint8_t *s = src;
108  register const uint8_t *end = s + src_size;
109  const uint8_t *mm_end = end - 3;
110 
111  while (s < mm_end) {
112  register uint32_t x = *((const uint32_t *)s);
113  *((uint32_t *)d) = ((x >> 1) & 0x7FE07FE0) | (x & 0x001F001F);
114  s += 4;
115  d += 4;
116  }
117  if (s < end) {
118  register uint16_t x = *((const uint16_t *)s);
119  *((uint16_t *)d) = ((x >> 1) & 0x7FE0) | (x & 0x001F);
120  }
121 }
122 
123 static inline void rgb32to16_c(const uint8_t *src, uint8_t *dst, int src_size)
124 {
125  uint16_t *d = (uint16_t *)dst;
126  const uint8_t *s = src;
127  const uint8_t *end = s + src_size;
128 
129  while (s < end) {
130  register int rgb = *(const uint32_t *)s;
131  s += 4;
132  *d++ = ((rgb & 0xFF) >> 3) +
133  ((rgb & 0xFC00) >> 5) +
134  ((rgb & 0xF80000) >> 8);
135  }
136 }
137 
138 static inline void rgb32tobgr16_c(const uint8_t *src, uint8_t *dst,
139  int src_size)
140 {
141  uint16_t *d = (uint16_t *)dst;
142  const uint8_t *s = src;
143  const uint8_t *end = s + src_size;
144 
145  while (s < end) {
146  register int rgb = *(const uint32_t *)s;
147  s += 4;
148  *d++ = ((rgb & 0xF8) << 8) +
149  ((rgb & 0xFC00) >> 5) +
150  ((rgb & 0xF80000) >> 19);
151  }
152 }
153 
154 static inline void rgb32to15_c(const uint8_t *src, uint8_t *dst, int src_size)
155 {
156  uint16_t *d = (uint16_t *)dst;
157  const uint8_t *s = src;
158  const uint8_t *end = s + src_size;
159 
160  while (s < end) {
161  register int rgb = *(const uint32_t *)s;
162  s += 4;
163  *d++ = ((rgb & 0xFF) >> 3) +
164  ((rgb & 0xF800) >> 6) +
165  ((rgb & 0xF80000) >> 9);
166  }
167 }
168 
169 static inline void rgb32tobgr15_c(const uint8_t *src, uint8_t *dst,
170  int src_size)
171 {
172  uint16_t *d = (uint16_t *)dst;
173  const uint8_t *s = src;
174  const uint8_t *end = s + src_size;
175 
176  while (s < end) {
177  register int rgb = *(const uint32_t *)s;
178  s += 4;
179  *d++ = ((rgb & 0xF8) << 7) +
180  ((rgb & 0xF800) >> 6) +
181  ((rgb & 0xF80000) >> 19);
182  }
183 }
184 
185 static inline void rgb24tobgr16_c(const uint8_t *src, uint8_t *dst,
186  int src_size)
187 {
188  uint16_t *d = (uint16_t *)dst;
189  const uint8_t *s = src;
190  const uint8_t *end = s + src_size;
191 
192  while (s < end) {
193  const int b = *s++;
194  const int g = *s++;
195  const int r = *s++;
196  *d++ = (b >> 3) | ((g & 0xFC) << 3) | ((r & 0xF8) << 8);
197  }
198 }
199 
200 static inline void rgb24to16_c(const uint8_t *src, uint8_t *dst, int src_size)
201 {
202  uint16_t *d = (uint16_t *)dst;
203  const uint8_t *s = src;
204  const uint8_t *end = s + src_size;
205 
206  while (s < end) {
207  const int r = *s++;
208  const int g = *s++;
209  const int b = *s++;
210  *d++ = (b >> 3) | ((g & 0xFC) << 3) | ((r & 0xF8) << 8);
211  }
212 }
213 
214 static inline void rgb24tobgr15_c(const uint8_t *src, uint8_t *dst,
215  int src_size)
216 {
217  uint16_t *d = (uint16_t *)dst;
218  const uint8_t *s = src;
219  const uint8_t *end = s + src_size;
220 
221  while (s < end) {
222  const int b = *s++;
223  const int g = *s++;
224  const int r = *s++;
225  *d++ = (b >> 3) | ((g & 0xF8) << 2) | ((r & 0xF8) << 7);
226  }
227 }
228 
229 static inline void rgb24to15_c(const uint8_t *src, uint8_t *dst, int src_size)
230 {
231  uint16_t *d = (uint16_t *)dst;
232  const uint8_t *s = src;
233  const uint8_t *end = s + src_size;
234 
235  while (s < end) {
236  const int r = *s++;
237  const int g = *s++;
238  const int b = *s++;
239  *d++ = (b >> 3) | ((g & 0xF8) << 2) | ((r & 0xF8) << 7);
240  }
241 }
242 
243 static inline void rgb15tobgr24_c(const uint8_t *src, uint8_t *dst,
244  int src_size)
245 {
246  uint8_t *d = dst;
247  const uint16_t *s = (const uint16_t *)src;
248  const uint16_t *end = s + src_size / 2;
249 
250  while (s < end) {
251  register uint16_t bgr = *s++;
252  *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
253  *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
254  *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
255  }
256 }
257 
258 static inline void rgb16tobgr24_c(const uint8_t *src, uint8_t *dst,
259  int src_size)
260 {
261  uint8_t *d = (uint8_t *)dst;
262  const uint16_t *s = (const uint16_t *)src;
263  const uint16_t *end = s + src_size / 2;
264 
265  while (s < end) {
266  register uint16_t bgr = *s++;
267  *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
268  *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
269  *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
270  }
271 }
272 
273 static inline void rgb15to32_c(const uint8_t *src, uint8_t *dst, int src_size)
274 {
275  uint8_t *d = dst;
276  const uint16_t *s = (const uint16_t *)src;
277  const uint16_t *end = s + src_size / 2;
278 
279  while (s < end) {
280  register uint16_t bgr = *s++;
281 #if HAVE_BIGENDIAN
282  *d++ = 255;
283  *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
284  *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
285  *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
286 #else
287  *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
288  *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
289  *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
290  *d++ = 255;
291 #endif
292  }
293 }
294 
295 static inline void rgb16to32_c(const uint8_t *src, uint8_t *dst, int src_size)
296 {
297  uint8_t *d = dst;
298  const uint16_t *s = (const uint16_t *)src;
299  const uint16_t *end = s + src_size / 2;
300 
301  while (s < end) {
302  register uint16_t bgr = *s++;
303 #if HAVE_BIGENDIAN
304  *d++ = 255;
305  *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
306  *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
307  *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
308 #else
309  *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
310  *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
311  *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
312  *d++ = 255;
313 #endif
314  }
315 }
316 
317 static inline void shuffle_bytes_2103_c(const uint8_t *src, uint8_t *dst,
318  int src_size)
319 {
320  int idx = 15 - src_size;
321  const uint8_t *s = src - idx;
322  uint8_t *d = dst - idx;
323 
324  for (; idx < 15; idx += 4) {
325  register int v = *(const uint32_t *)&s[idx], g = v & 0xff00ff00;
326  v &= 0xff00ff;
327  *(uint32_t *)&d[idx] = (v >> 16) + g + (v << 16);
328  }
329 }
330 
331 static inline void rgb24tobgr24_c(const uint8_t *src, uint8_t *dst, int src_size)
332 {
333  unsigned i;
334 
335  for (i = 0; i < src_size; i += 3) {
336  register uint8_t x = src[i + 2];
337  dst[i + 1] = src[i + 1];
338  dst[i + 2] = src[i + 0];
339  dst[i + 0] = x;
340  }
341 }
342 
343 static inline void yuvPlanartoyuy2_c(const uint8_t *ysrc, const uint8_t *usrc,
344  const uint8_t *vsrc, uint8_t *dst,
345  int width, int height,
346  int lumStride, int chromStride,
347  int dstStride, int vertLumPerChroma)
348 {
349  int y, i;
350  const int chromWidth = width >> 1;
351 
352  for (y = 0; y < height; y++) {
353 #if HAVE_FAST_64BIT
354  uint64_t *ldst = (uint64_t *)dst;
355  const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
356  for (i = 0; i < chromWidth; i += 2) {
357  uint64_t k = yc[0] + (uc[0] << 8) +
358  (yc[1] << 16) + (unsigned)(vc[0] << 24);
359  uint64_t l = yc[2] + (uc[1] << 8) +
360  (yc[3] << 16) + (unsigned)(vc[1] << 24);
361  *ldst++ = k + (l << 32);
362  yc += 4;
363  uc += 2;
364  vc += 2;
365  }
366 
367 #else
368  int *idst = (int32_t *)dst;
369  const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
370 
371  for (i = 0; i < chromWidth; i++) {
372 #if HAVE_BIGENDIAN
373  *idst++ = (yc[0] << 24) + (uc[0] << 16) +
374  (yc[1] << 8) + (vc[0] << 0);
375 #else
376  *idst++ = yc[0] + (uc[0] << 8) +
377  (yc[1] << 16) + (vc[0] << 24);
378 #endif
379  yc += 2;
380  uc++;
381  vc++;
382  }
383 #endif
384  if ((y & (vertLumPerChroma - 1)) == vertLumPerChroma - 1) {
385  usrc += chromStride;
386  vsrc += chromStride;
387  }
388  ysrc += lumStride;
389  dst += dstStride;
390  }
391 }
392 
393 /**
394  * Height should be a multiple of 2 and width should be a multiple of 16.
395  * (If this is a problem for anyone then tell me, and I will fix it.)
396  */
397 static inline void yv12toyuy2_c(const uint8_t *ysrc, const uint8_t *usrc,
398  const uint8_t *vsrc, uint8_t *dst,
399  int width, int height, int lumStride,
400  int chromStride, int dstStride)
401 {
402  //FIXME interpolate chroma
403  yuvPlanartoyuy2_c(ysrc, usrc, vsrc, dst, width, height, lumStride,
404  chromStride, dstStride, 2);
405 }
406 
407 static inline void yuvPlanartouyvy_c(const uint8_t *ysrc, const uint8_t *usrc,
408  const uint8_t *vsrc, uint8_t *dst,
409  int width, int height,
410  int lumStride, int chromStride,
411  int dstStride, int vertLumPerChroma)
412 {
413  int y, i;
414  const int chromWidth = width >> 1;
415 
416  for (y = 0; y < height; y++) {
417 #if HAVE_FAST_64BIT
418  uint64_t *ldst = (uint64_t *)dst;
419  const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
420  for (i = 0; i < chromWidth; i += 2) {
421  uint64_t k = uc[0] + (yc[0] << 8) +
422  (vc[0] << 16) + (unsigned)(yc[1] << 24);
423  uint64_t l = uc[1] + (yc[2] << 8) +
424  (vc[1] << 16) + (unsigned)(yc[3] << 24);
425  *ldst++ = k + (l << 32);
426  yc += 4;
427  uc += 2;
428  vc += 2;
429  }
430 
431 #else
432  int *idst = (int32_t *)dst;
433  const uint8_t *yc = ysrc, *uc = usrc, *vc = vsrc;
434 
435  for (i = 0; i < chromWidth; i++) {
436 #if HAVE_BIGENDIAN
437  *idst++ = (uc[0] << 24) + (yc[0] << 16) +
438  (vc[0] << 8) + (yc[1] << 0);
439 #else
440  *idst++ = uc[0] + (yc[0] << 8) +
441  (vc[0] << 16) + (yc[1] << 24);
442 #endif
443  yc += 2;
444  uc++;
445  vc++;
446  }
447 #endif
448  if ((y & (vertLumPerChroma - 1)) == vertLumPerChroma - 1) {
449  usrc += chromStride;
450  vsrc += chromStride;
451  }
452  ysrc += lumStride;
453  dst += dstStride;
454  }
455 }
456 
457 /**
458  * Height should be a multiple of 2 and width should be a multiple of 16
459  * (If this is a problem for anyone then tell me, and I will fix it.)
460  */
461 static inline void yv12touyvy_c(const uint8_t *ysrc, const uint8_t *usrc,
462  const uint8_t *vsrc, uint8_t *dst,
463  int width, int height, int lumStride,
464  int chromStride, int dstStride)
465 {
466  //FIXME interpolate chroma
467  yuvPlanartouyvy_c(ysrc, usrc, vsrc, dst, width, height, lumStride,
468  chromStride, dstStride, 2);
469 }
470 
471 /**
472  * Width should be a multiple of 16.
473  */
474 static inline void yuv422ptouyvy_c(const uint8_t *ysrc, const uint8_t *usrc,
475  const uint8_t *vsrc, uint8_t *dst,
476  int width, int height, int lumStride,
477  int chromStride, int dstStride)
478 {
479  yuvPlanartouyvy_c(ysrc, usrc, vsrc, dst, width, height, lumStride,
480  chromStride, dstStride, 1);
481 }
482 
483 /**
484  * Width should be a multiple of 16.
485  */
486 static inline void yuv422ptoyuy2_c(const uint8_t *ysrc, const uint8_t *usrc,
487  const uint8_t *vsrc, uint8_t *dst,
488  int width, int height, int lumStride,
489  int chromStride, int dstStride)
490 {
491  yuvPlanartoyuy2_c(ysrc, usrc, vsrc, dst, width, height, lumStride,
492  chromStride, dstStride, 1);
493 }
494 
495 /**
496  * Height should be a multiple of 2 and width should be a multiple of 16.
497  * (If this is a problem for anyone then tell me, and I will fix it.)
498  */
499 static inline void yuy2toyv12_c(const uint8_t *src, uint8_t *ydst,
500  uint8_t *udst, uint8_t *vdst,
501  int width, int height, int lumStride,
502  int chromStride, int srcStride)
503 {
504  int y;
505  const int chromWidth = width >> 1;
506 
507  for (y = 0; y < height; y += 2) {
508  int i;
509  for (i = 0; i < chromWidth; i++) {
510  ydst[2 * i + 0] = src[4 * i + 0];
511  udst[i] = src[4 * i + 1];
512  ydst[2 * i + 1] = src[4 * i + 2];
513  vdst[i] = src[4 * i + 3];
514  }
515  ydst += lumStride;
516  src += srcStride;
517 
518  for (i = 0; i < chromWidth; i++) {
519  ydst[2 * i + 0] = src[4 * i + 0];
520  ydst[2 * i + 1] = src[4 * i + 2];
521  }
522  udst += chromStride;
523  vdst += chromStride;
524  ydst += lumStride;
525  src += srcStride;
526  }
527 }
528 
529 static inline void planar2x_c(const uint8_t *src, uint8_t *dst, int srcWidth,
530  int srcHeight, int srcStride, int dstStride)
531 {
532  int x, y;
533 
534  dst[0] = src[0];
535 
536  // first line
537  for (x = 0; x < srcWidth - 1; x++) {
538  dst[2 * x + 1] = (3 * src[x] + src[x + 1]) >> 2;
539  dst[2 * x + 2] = (src[x] + 3 * src[x + 1]) >> 2;
540  }
541  dst[2 * srcWidth - 1] = src[srcWidth - 1];
542 
543  dst += dstStride;
544 
545  for (y = 1; y < srcHeight; y++) {
546  const int mmxSize = 1;
547 
548  dst[0] = (src[0] * 3 + src[srcStride]) >> 2;
549  dst[dstStride] = (src[0] + 3 * src[srcStride]) >> 2;
550 
551  for (x = mmxSize - 1; x < srcWidth - 1; x++) {
552  dst[2 * x + 1] = (src[x + 0] * 3 + src[x + srcStride + 1]) >> 2;
553  dst[2 * x + dstStride + 2] = (src[x + 0] + 3 * src[x + srcStride + 1]) >> 2;
554  dst[2 * x + dstStride + 1] = (src[x + 1] + 3 * src[x + srcStride]) >> 2;
555  dst[2 * x + 2] = (src[x + 1] * 3 + src[x + srcStride]) >> 2;
556  }
557  dst[srcWidth * 2 - 1] = (src[srcWidth - 1] * 3 + src[srcWidth - 1 + srcStride]) >> 2;
558  dst[srcWidth * 2 - 1 + dstStride] = (src[srcWidth - 1] + 3 * src[srcWidth - 1 + srcStride]) >> 2;
559 
560  dst += dstStride * 2;
561  src += srcStride;
562  }
563 
564  // last line
565  dst[0] = src[0];
566 
567  for (x = 0; x < srcWidth - 1; x++) {
568  dst[2 * x + 1] = (src[x] * 3 + src[x + 1]) >> 2;
569  dst[2 * x + 2] = (src[x] + 3 * src[x + 1]) >> 2;
570  }
571  dst[2 * srcWidth - 1] = src[srcWidth - 1];
572 }
573 
574 /**
575  * Height should be a multiple of 2 and width should be a multiple of 16.
576  * (If this is a problem for anyone then tell me, and I will fix it.)
577  * Chrominance data is only taken from every second line, others are ignored.
578  * FIXME: Write HQ version.
579  */
580 static inline void uyvytoyv12_c(const uint8_t *src, uint8_t *ydst,
581  uint8_t *udst, uint8_t *vdst,
582  int width, int height, int lumStride,
583  int chromStride, int srcStride)
584 {
585  int y;
586  const int chromWidth = width >> 1;
587 
588  for (y = 0; y < height; y += 2) {
589  int i;
590  for (i = 0; i < chromWidth; i++) {
591  udst[i] = src[4 * i + 0];
592  ydst[2 * i + 0] = src[4 * i + 1];
593  vdst[i] = src[4 * i + 2];
594  ydst[2 * i + 1] = src[4 * i + 3];
595  }
596  ydst += lumStride;
597  src += srcStride;
598 
599  for (i = 0; i < chromWidth; i++) {
600  ydst[2 * i + 0] = src[4 * i + 1];
601  ydst[2 * i + 1] = src[4 * i + 3];
602  }
603  udst += chromStride;
604  vdst += chromStride;
605  ydst += lumStride;
606  src += srcStride;
607  }
608 }
609 
610 /**
611  * Height should be a multiple of 2 and width should be a multiple of 2.
612  * (If this is a problem for anyone then tell me, and I will fix it.)
613  * Chrominance data is only taken from every second line,
614  * others are ignored in the C version.
615  * FIXME: Write HQ version.
616  */
617 void ff_rgb24toyv12_c(const uint8_t *src, uint8_t *ydst, uint8_t *udst,
618  uint8_t *vdst, int width, int height, int lumStride,
619  int chromStride, int srcStride, int32_t *rgb2yuv)
620 {
621  int32_t ry = rgb2yuv[RY_IDX], gy = rgb2yuv[GY_IDX], by = rgb2yuv[BY_IDX];
622  int32_t ru = rgb2yuv[RU_IDX], gu = rgb2yuv[GU_IDX], bu = rgb2yuv[BU_IDX];
623  int32_t rv = rgb2yuv[RV_IDX], gv = rgb2yuv[GV_IDX], bv = rgb2yuv[BV_IDX];
624  int y;
625  const int chromWidth = width >> 1;
626 
627  for (y = 0; y < height; y += 2) {
628  int i;
629  for (i = 0; i < chromWidth; i++) {
630  unsigned int b = src[6 * i + 0];
631  unsigned int g = src[6 * i + 1];
632  unsigned int r = src[6 * i + 2];
633 
634  unsigned int Y = ((ry * r + gy * g + by * b) >> RGB2YUV_SHIFT) + 16;
635  unsigned int V = ((rv * r + gv * g + bv * b) >> RGB2YUV_SHIFT) + 128;
636  unsigned int U = ((ru * r + gu * g + bu * b) >> RGB2YUV_SHIFT) + 128;
637 
638  udst[i] = U;
639  vdst[i] = V;
640  ydst[2 * i] = Y;
641 
642  b = src[6 * i + 3];
643  g = src[6 * i + 4];
644  r = src[6 * i + 5];
645 
646  Y = ((ry * r + gy * g + by * b) >> RGB2YUV_SHIFT) + 16;
647  ydst[2 * i + 1] = Y;
648  }
649  ydst += lumStride;
650  src += srcStride;
651 
652  if (y+1 == height)
653  break;
654 
655  for (i = 0; i < chromWidth; i++) {
656  unsigned int b = src[6 * i + 0];
657  unsigned int g = src[6 * i + 1];
658  unsigned int r = src[6 * i + 2];
659 
660  unsigned int Y = ((ry * r + gy * g + by * b) >> RGB2YUV_SHIFT) + 16;
661 
662  ydst[2 * i] = Y;
663 
664  b = src[6 * i + 3];
665  g = src[6 * i + 4];
666  r = src[6 * i + 5];
667 
668  Y = ((ry * r + gy * g + by * b) >> RGB2YUV_SHIFT) + 16;
669  ydst[2 * i + 1] = Y;
670  }
671  udst += chromStride;
672  vdst += chromStride;
673  ydst += lumStride;
674  src += srcStride;
675  }
676 }
677 
678 static void interleaveBytes_c(const uint8_t *src1, const uint8_t *src2,
679  uint8_t *dest, int width, int height,
680  int src1Stride, int src2Stride, int dstStride)
681 {
682  int h;
683 
684  for (h = 0; h < height; h++) {
685  int w;
686  for (w = 0; w < width; w++) {
687  dest[2 * w + 0] = src1[w];
688  dest[2 * w + 1] = src2[w];
689  }
690  dest += dstStride;
691  src1 += src1Stride;
692  src2 += src2Stride;
693  }
694 }
695 
696 static inline void vu9_to_vu12_c(const uint8_t *src1, const uint8_t *src2,
697  uint8_t *dst1, uint8_t *dst2,
698  int width, int height,
699  int srcStride1, int srcStride2,
700  int dstStride1, int dstStride2)
701 {
702  int x, y;
703  int w = width / 2;
704  int h = height / 2;
705 
706  for (y = 0; y < h; y++) {
707  const uint8_t *s1 = src1 + srcStride1 * (y >> 1);
708  uint8_t *d = dst1 + dstStride1 * y;
709  for (x = 0; x < w; x++)
710  d[2 * x] = d[2 * x + 1] = s1[x];
711  }
712  for (y = 0; y < h; y++) {
713  const uint8_t *s2 = src2 + srcStride2 * (y >> 1);
714  uint8_t *d = dst2 + dstStride2 * y;
715  for (x = 0; x < w; x++)
716  d[2 * x] = d[2 * x + 1] = s2[x];
717  }
718 }
719 
720 static inline void yvu9_to_yuy2_c(const uint8_t *src1, const uint8_t *src2,
721  const uint8_t *src3, uint8_t *dst,
722  int width, int height,
723  int srcStride1, int srcStride2,
724  int srcStride3, int dstStride)
725 {
726  int x, y;
727  int w = width / 2;
728  int h = height;
729 
730  for (y = 0; y < h; y++) {
731  const uint8_t *yp = src1 + srcStride1 * y;
732  const uint8_t *up = src2 + srcStride2 * (y >> 2);
733  const uint8_t *vp = src3 + srcStride3 * (y >> 2);
734  uint8_t *d = dst + dstStride * y;
735  for (x = 0; x < w; x++) {
736  const int x2 = x << 2;
737  d[8 * x + 0] = yp[x2];
738  d[8 * x + 1] = up[x];
739  d[8 * x + 2] = yp[x2 + 1];
740  d[8 * x + 3] = vp[x];
741  d[8 * x + 4] = yp[x2 + 2];
742  d[8 * x + 5] = up[x];
743  d[8 * x + 6] = yp[x2 + 3];
744  d[8 * x + 7] = vp[x];
745  }
746  }
747 }
748 
749 static void extract_even_c(const uint8_t *src, uint8_t *dst, int count)
750 {
751  dst += count;
752  src += count * 2;
753  count = -count;
754  while (count < 0) {
755  dst[count] = src[2 * count];
756  count++;
757  }
758 }
759 
760 static void extract_even2_c(const uint8_t *src, uint8_t *dst0, uint8_t *dst1,
761  int count)
762 {
763  dst0 += count;
764  dst1 += count;
765  src += count * 4;
766  count = -count;
767  while (count < 0) {
768  dst0[count] = src[4 * count + 0];
769  dst1[count] = src[4 * count + 2];
770  count++;
771  }
772 }
773 
774 static void extract_even2avg_c(const uint8_t *src0, const uint8_t *src1,
775  uint8_t *dst0, uint8_t *dst1, int count)
776 {
777  dst0 += count;
778  dst1 += count;
779  src0 += count * 4;
780  src1 += count * 4;
781  count = -count;
782  while (count < 0) {
783  dst0[count] = (src0[4 * count + 0] + src1[4 * count + 0]) >> 1;
784  dst1[count] = (src0[4 * count + 2] + src1[4 * count + 2]) >> 1;
785  count++;
786  }
787 }
788 
789 static void extract_odd2_c(const uint8_t *src, uint8_t *dst0, uint8_t *dst1,
790  int count)
791 {
792  dst0 += count;
793  dst1 += count;
794  src += count * 4;
795  count = -count;
796  src++;
797  while (count < 0) {
798  dst0[count] = src[4 * count + 0];
799  dst1[count] = src[4 * count + 2];
800  count++;
801  }
802 }
803 
804 static void extract_odd2avg_c(const uint8_t *src0, const uint8_t *src1,
805  uint8_t *dst0, uint8_t *dst1, int count)
806 {
807  dst0 += count;
808  dst1 += count;
809  src0 += count * 4;
810  src1 += count * 4;
811  count = -count;
812  src0++;
813  src1++;
814  while (count < 0) {
815  dst0[count] = (src0[4 * count + 0] + src1[4 * count + 0]) >> 1;
816  dst1[count] = (src0[4 * count + 2] + src1[4 * count + 2]) >> 1;
817  count++;
818  }
819 }
820 
821 static void yuyvtoyuv420_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
822  const uint8_t *src, int width, int height,
823  int lumStride, int chromStride, int srcStride)
824 {
825  int y;
826  const int chromWidth = FF_CEIL_RSHIFT(width, 1);
827 
828  for (y = 0; y < height; y++) {
829  extract_even_c(src, ydst, width);
830  if (y & 1) {
831  extract_odd2avg_c(src - srcStride, src, udst, vdst, chromWidth);
832  udst += chromStride;
833  vdst += chromStride;
834  }
835 
836  src += srcStride;
837  ydst += lumStride;
838  }
839 }
840 
841 static void yuyvtoyuv422_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
842  const uint8_t *src, int width, int height,
843  int lumStride, int chromStride, int srcStride)
844 {
845  int y;
846  const int chromWidth = FF_CEIL_RSHIFT(width, 1);
847 
848  for (y = 0; y < height; y++) {
849  extract_even_c(src, ydst, width);
850  extract_odd2_c(src, udst, vdst, chromWidth);
851 
852  src += srcStride;
853  ydst += lumStride;
854  udst += chromStride;
855  vdst += chromStride;
856  }
857 }
858 
859 static void uyvytoyuv420_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
860  const uint8_t *src, int width, int height,
861  int lumStride, int chromStride, int srcStride)
862 {
863  int y;
864  const int chromWidth = FF_CEIL_RSHIFT(width, 1);
865 
866  for (y = 0; y < height; y++) {
867  extract_even_c(src + 1, ydst, width);
868  if (y & 1) {
869  extract_even2avg_c(src - srcStride, src, udst, vdst, chromWidth);
870  udst += chromStride;
871  vdst += chromStride;
872  }
873 
874  src += srcStride;
875  ydst += lumStride;
876  }
877 }
878 
879 static void uyvytoyuv422_c(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
880  const uint8_t *src, int width, int height,
881  int lumStride, int chromStride, int srcStride)
882 {
883  int y;
884  const int chromWidth = FF_CEIL_RSHIFT(width, 1);
885 
886  for (y = 0; y < height; y++) {
887  extract_even_c(src + 1, ydst, width);
888  extract_even2_c(src, udst, vdst, chromWidth);
889 
890  src += srcStride;
891  ydst += lumStride;
892  udst += chromStride;
893  vdst += chromStride;
894  }
895 }
896 
897 static av_cold void rgb2rgb_init_c(void)
898 {
899  rgb15to16 = rgb15to16_c;
900  rgb15tobgr24 = rgb15tobgr24_c;
901  rgb15to32 = rgb15to32_c;
902  rgb16tobgr24 = rgb16tobgr24_c;
903  rgb16to32 = rgb16to32_c;
904  rgb16to15 = rgb16to15_c;
905  rgb24tobgr16 = rgb24tobgr16_c;
906  rgb24tobgr15 = rgb24tobgr15_c;
907  rgb24tobgr32 = rgb24tobgr32_c;
908  rgb32to16 = rgb32to16_c;
909  rgb32to15 = rgb32to15_c;
910  rgb32tobgr24 = rgb32tobgr24_c;
911  rgb24to15 = rgb24to15_c;
912  rgb24to16 = rgb24to16_c;
913  rgb24tobgr24 = rgb24tobgr24_c;
914  shuffle_bytes_2103 = shuffle_bytes_2103_c;
915  rgb32tobgr16 = rgb32tobgr16_c;
916  rgb32tobgr15 = rgb32tobgr15_c;
917  yv12toyuy2 = yv12toyuy2_c;
918  yv12touyvy = yv12touyvy_c;
919  yuv422ptoyuy2 = yuv422ptoyuy2_c;
920  yuv422ptouyvy = yuv422ptouyvy_c;
921  yuy2toyv12 = yuy2toyv12_c;
922  planar2x = planar2x_c;
923  ff_rgb24toyv12 = ff_rgb24toyv12_c;
924  interleaveBytes = interleaveBytes_c;
925  vu9_to_vu12 = vu9_to_vu12_c;
926  yvu9_to_yuy2 = yvu9_to_yuy2_c;
927 
928  uyvytoyuv420 = uyvytoyuv420_c;
929  uyvytoyuv422 = uyvytoyuv422_c;
930  yuyvtoyuv420 = yuyvtoyuv420_c;
931  yuyvtoyuv422 = yuyvtoyuv422_c;
932 }
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