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swscale_unscaled.c
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1 /*
2  * Copyright (C) 2001-2011 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <inttypes.h>
22 #include <string.h>
23 #include <math.h>
24 #include <stdio.h>
25 #include "config.h"
26 #include "swscale.h"
27 #include "swscale_internal.h"
28 #include "rgb2rgb.h"
29 #include "libavutil/intreadwrite.h"
30 #include "libavutil/cpu.h"
31 #include "libavutil/avutil.h"
32 #include "libavutil/mathematics.h"
33 #include "libavutil/bswap.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/avassert.h"
36 
37 DECLARE_ALIGNED(8, static const uint8_t, dithers)[8][8][8]={
38 {
39  { 0, 1, 0, 1, 0, 1, 0, 1,},
40  { 1, 0, 1, 0, 1, 0, 1, 0,},
41  { 0, 1, 0, 1, 0, 1, 0, 1,},
42  { 1, 0, 1, 0, 1, 0, 1, 0,},
43  { 0, 1, 0, 1, 0, 1, 0, 1,},
44  { 1, 0, 1, 0, 1, 0, 1, 0,},
45  { 0, 1, 0, 1, 0, 1, 0, 1,},
46  { 1, 0, 1, 0, 1, 0, 1, 0,},
47 },{
48  { 1, 2, 1, 2, 1, 2, 1, 2,},
49  { 3, 0, 3, 0, 3, 0, 3, 0,},
50  { 1, 2, 1, 2, 1, 2, 1, 2,},
51  { 3, 0, 3, 0, 3, 0, 3, 0,},
52  { 1, 2, 1, 2, 1, 2, 1, 2,},
53  { 3, 0, 3, 0, 3, 0, 3, 0,},
54  { 1, 2, 1, 2, 1, 2, 1, 2,},
55  { 3, 0, 3, 0, 3, 0, 3, 0,},
56 },{
57  { 2, 4, 3, 5, 2, 4, 3, 5,},
58  { 6, 0, 7, 1, 6, 0, 7, 1,},
59  { 3, 5, 2, 4, 3, 5, 2, 4,},
60  { 7, 1, 6, 0, 7, 1, 6, 0,},
61  { 2, 4, 3, 5, 2, 4, 3, 5,},
62  { 6, 0, 7, 1, 6, 0, 7, 1,},
63  { 3, 5, 2, 4, 3, 5, 2, 4,},
64  { 7, 1, 6, 0, 7, 1, 6, 0,},
65 },{
66  { 4, 8, 7, 11, 4, 8, 7, 11,},
67  { 12, 0, 15, 3, 12, 0, 15, 3,},
68  { 6, 10, 5, 9, 6, 10, 5, 9,},
69  { 14, 2, 13, 1, 14, 2, 13, 1,},
70  { 4, 8, 7, 11, 4, 8, 7, 11,},
71  { 12, 0, 15, 3, 12, 0, 15, 3,},
72  { 6, 10, 5, 9, 6, 10, 5, 9,},
73  { 14, 2, 13, 1, 14, 2, 13, 1,},
74 },{
75  { 9, 17, 15, 23, 8, 16, 14, 22,},
76  { 25, 1, 31, 7, 24, 0, 30, 6,},
77  { 13, 21, 11, 19, 12, 20, 10, 18,},
78  { 29, 5, 27, 3, 28, 4, 26, 2,},
79  { 8, 16, 14, 22, 9, 17, 15, 23,},
80  { 24, 0, 30, 6, 25, 1, 31, 7,},
81  { 12, 20, 10, 18, 13, 21, 11, 19,},
82  { 28, 4, 26, 2, 29, 5, 27, 3,},
83 },{
84  { 18, 34, 30, 46, 17, 33, 29, 45,},
85  { 50, 2, 62, 14, 49, 1, 61, 13,},
86  { 26, 42, 22, 38, 25, 41, 21, 37,},
87  { 58, 10, 54, 6, 57, 9, 53, 5,},
88  { 16, 32, 28, 44, 19, 35, 31, 47,},
89  { 48, 0, 60, 12, 51, 3, 63, 15,},
90  { 24, 40, 20, 36, 27, 43, 23, 39,},
91  { 56, 8, 52, 4, 59, 11, 55, 7,},
92 },{
93  { 18, 34, 30, 46, 17, 33, 29, 45,},
94  { 50, 2, 62, 14, 49, 1, 61, 13,},
95  { 26, 42, 22, 38, 25, 41, 21, 37,},
96  { 58, 10, 54, 6, 57, 9, 53, 5,},
97  { 16, 32, 28, 44, 19, 35, 31, 47,},
98  { 48, 0, 60, 12, 51, 3, 63, 15,},
99  { 24, 40, 20, 36, 27, 43, 23, 39,},
100  { 56, 8, 52, 4, 59, 11, 55, 7,},
101 },{
102  { 36, 68, 60, 92, 34, 66, 58, 90,},
103  { 100, 4,124, 28, 98, 2,122, 26,},
104  { 52, 84, 44, 76, 50, 82, 42, 74,},
105  { 116, 20,108, 12,114, 18,106, 10,},
106  { 32, 64, 56, 88, 38, 70, 62, 94,},
107  { 96, 0,120, 24,102, 6,126, 30,},
108  { 48, 80, 40, 72, 54, 86, 46, 78,},
109  { 112, 16,104, 8,118, 22,110, 14,},
110 }};
111 
112 static const uint16_t dither_scale[15][16]={
113 { 2, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,},
114 { 2, 3, 7, 7, 13, 13, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,},
115 { 3, 3, 4, 15, 15, 29, 57, 57, 57, 113, 113, 113, 113, 113, 113, 113,},
116 { 3, 4, 4, 5, 31, 31, 61, 121, 241, 241, 241, 241, 481, 481, 481, 481,},
117 { 3, 4, 5, 5, 6, 63, 63, 125, 249, 497, 993, 993, 993, 993, 993, 1985,},
118 { 3, 5, 6, 6, 6, 7, 127, 127, 253, 505, 1009, 2017, 4033, 4033, 4033, 4033,},
119 { 3, 5, 6, 7, 7, 7, 8, 255, 255, 509, 1017, 2033, 4065, 8129,16257,16257,},
120 { 3, 5, 6, 8, 8, 8, 8, 9, 511, 511, 1021, 2041, 4081, 8161,16321,32641,},
121 { 3, 5, 7, 8, 9, 9, 9, 9, 10, 1023, 1023, 2045, 4089, 8177,16353,32705,},
122 { 3, 5, 7, 8, 10, 10, 10, 10, 10, 11, 2047, 2047, 4093, 8185,16369,32737,},
123 { 3, 5, 7, 8, 10, 11, 11, 11, 11, 11, 12, 4095, 4095, 8189,16377,32753,},
124 { 3, 5, 7, 9, 10, 12, 12, 12, 12, 12, 12, 13, 8191, 8191,16381,32761,},
125 { 3, 5, 7, 9, 10, 12, 13, 13, 13, 13, 13, 13, 14,16383,16383,32765,},
126 { 3, 5, 7, 9, 10, 12, 14, 14, 14, 14, 14, 14, 14, 15,32767,32767,},
127 { 3, 5, 7, 9, 11, 12, 14, 15, 15, 15, 15, 15, 15, 15, 16,65535,},
128 };
129 
130 
131 static void fillPlane(uint8_t *plane, int stride, int width, int height, int y,
132  uint8_t val)
133 {
134  int i;
135  uint8_t *ptr = plane + stride * y;
136  for (i = 0; i < height; i++) {
137  memset(ptr, val, width);
138  ptr += stride;
139  }
140 }
141 
142 static void copyPlane(const uint8_t *src, int srcStride,
143  int srcSliceY, int srcSliceH, int width,
144  uint8_t *dst, int dstStride)
145 {
146  dst += dstStride * srcSliceY;
147  if (dstStride == srcStride && srcStride > 0) {
148  memcpy(dst, src, srcSliceH * dstStride);
149  } else {
150  int i;
151  for (i = 0; i < srcSliceH; i++) {
152  memcpy(dst, src, width);
153  src += srcStride;
154  dst += dstStride;
155  }
156  }
157 }
158 
159 static int planarToNv12Wrapper(SwsContext *c, const uint8_t *src[],
160  int srcStride[], int srcSliceY,
161  int srcSliceH, uint8_t *dstParam[],
162  int dstStride[])
163 {
164  uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY / 2;
165 
166  copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
167  dstParam[0], dstStride[0]);
168 
169  if (c->dstFormat == AV_PIX_FMT_NV12)
170  interleaveBytes(src[1], src[2], dst, c->srcW / 2, srcSliceH / 2,
171  srcStride[1], srcStride[2], dstStride[1]);
172  else
173  interleaveBytes(src[2], src[1], dst, c->srcW / 2, srcSliceH / 2,
174  srcStride[2], srcStride[1], dstStride[1]);
175 
176  return srcSliceH;
177 }
178 
179 static int nv12ToPlanarWrapper(SwsContext *c, const uint8_t *src[],
180  int srcStride[], int srcSliceY,
181  int srcSliceH, uint8_t *dstParam[],
182  int dstStride[])
183 {
184  uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY / 2;
185  uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY / 2;
186 
187  copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
188  dstParam[0], dstStride[0]);
189 
190  if (c->srcFormat == AV_PIX_FMT_NV12)
191  deinterleaveBytes(src[1], dst1, dst2,c->srcW / 2, srcSliceH / 2,
192  srcStride[1], dstStride[1], dstStride[2]);
193  else
194  deinterleaveBytes(src[1], dst2, dst1, c->srcW / 2, srcSliceH / 2,
195  srcStride[1], dstStride[2], dstStride[1]);
196 
197  return srcSliceH;
198 }
199 
200 static int planarToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
201  int srcStride[], int srcSliceY, int srcSliceH,
202  uint8_t *dstParam[], int dstStride[])
203 {
204  uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
205 
206  yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
207  srcStride[1], dstStride[0]);
208 
209  return srcSliceH;
210 }
211 
212 static int planarToUyvyWrapper(SwsContext *c, const uint8_t *src[],
213  int srcStride[], int srcSliceY, int srcSliceH,
214  uint8_t *dstParam[], int dstStride[])
215 {
216  uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
217 
218  yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
219  srcStride[1], dstStride[0]);
220 
221  return srcSliceH;
222 }
223 
224 static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
225  int srcStride[], int srcSliceY, int srcSliceH,
226  uint8_t *dstParam[], int dstStride[])
227 {
228  uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
229 
230  yuv422ptoyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
231  srcStride[1], dstStride[0]);
232 
233  return srcSliceH;
234 }
235 
236 static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t *src[],
237  int srcStride[], int srcSliceY, int srcSliceH,
238  uint8_t *dstParam[], int dstStride[])
239 {
240  uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
241 
242  yuv422ptouyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
243  srcStride[1], dstStride[0]);
244 
245  return srcSliceH;
246 }
247 
248 static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
249  int srcStride[], int srcSliceY, int srcSliceH,
250  uint8_t *dstParam[], int dstStride[])
251 {
252  uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
253  uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
254  uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
255 
256  yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
257  dstStride[1], srcStride[0]);
258 
259  if (dstParam[3])
260  fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
261 
262  return srcSliceH;
263 }
264 
265 static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
266  int srcStride[], int srcSliceY, int srcSliceH,
267  uint8_t *dstParam[], int dstStride[])
268 {
269  uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
270  uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
271  uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
272 
273  yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
274  dstStride[1], srcStride[0]);
275 
276  return srcSliceH;
277 }
278 
279 static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
280  int srcStride[], int srcSliceY, int srcSliceH,
281  uint8_t *dstParam[], int dstStride[])
282 {
283  uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
284  uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
285  uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
286 
287  uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
288  dstStride[1], srcStride[0]);
289 
290  if (dstParam[3])
291  fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
292 
293  return srcSliceH;
294 }
295 
296 static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
297  int srcStride[], int srcSliceY, int srcSliceH,
298  uint8_t *dstParam[], int dstStride[])
299 {
300  uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
301  uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
302  uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
303 
304  uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
305  dstStride[1], srcStride[0]);
306 
307  return srcSliceH;
308 }
309 
310 static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels,
311  const uint8_t *palette)
312 {
313  int i;
314  for (i = 0; i < num_pixels; i++)
315  ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | (src[(i << 1) + 1] << 24);
316 }
317 
318 static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels,
319  const uint8_t *palette)
320 {
321  int i;
322 
323  for (i = 0; i < num_pixels; i++)
324  ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | src[(i << 1) + 1];
325 }
326 
327 static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels,
328  const uint8_t *palette)
329 {
330  int i;
331 
332  for (i = 0; i < num_pixels; i++) {
333  //FIXME slow?
334  dst[0] = palette[src[i << 1] * 4 + 0];
335  dst[1] = palette[src[i << 1] * 4 + 1];
336  dst[2] = palette[src[i << 1] * 4 + 2];
337  dst += 3;
338  }
339 }
340 
341 static int packed_16bpc_bswap(SwsContext *c, const uint8_t *src[],
342  int srcStride[], int srcSliceY, int srcSliceH,
343  uint8_t *dst[], int dstStride[])
344 {
345  int i, j, p;
346 
347  for (p = 0; p < 4; p++) {
348  int srcstr = srcStride[p] / 2;
349  int dststr = dstStride[p] / 2;
350  uint16_t *dstPtr = (uint16_t *) dst[p];
351  const uint16_t *srcPtr = (const uint16_t *) src[p];
352  int min_stride = FFMIN(FFABS(srcstr), FFABS(dststr));
353  if(!dstPtr || !srcPtr)
354  continue;
355  for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
356  for (j = 0; j < min_stride; j++) {
357  dstPtr[j] = av_bswap16(srcPtr[j]);
358  }
359  srcPtr += srcstr;
360  dstPtr += dststr;
361  }
362  }
363 
364  return srcSliceH;
365 }
366 
367 static int palToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
368  int srcSliceY, int srcSliceH, uint8_t *dst[],
369  int dstStride[])
370 {
371  const enum AVPixelFormat srcFormat = c->srcFormat;
372  const enum AVPixelFormat dstFormat = c->dstFormat;
373  void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels,
374  const uint8_t *palette) = NULL;
375  int i;
376  uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
377  const uint8_t *srcPtr = src[0];
378 
379  if (srcFormat == AV_PIX_FMT_YA8) {
380  switch (dstFormat) {
381  case AV_PIX_FMT_RGB32 : conv = gray8aToPacked32; break;
382  case AV_PIX_FMT_BGR32 : conv = gray8aToPacked32; break;
383  case AV_PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
384  case AV_PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
385  case AV_PIX_FMT_RGB24 : conv = gray8aToPacked24; break;
386  case AV_PIX_FMT_BGR24 : conv = gray8aToPacked24; break;
387  }
388  } else if (usePal(srcFormat)) {
389  switch (dstFormat) {
390  case AV_PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
391  case AV_PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
392  case AV_PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
393  case AV_PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
394  case AV_PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
395  case AV_PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
396  }
397  }
398 
399  if (!conv)
400  av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
401  av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
402  else {
403  for (i = 0; i < srcSliceH; i++) {
404  conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
405  srcPtr += srcStride[0];
406  dstPtr += dstStride[0];
407  }
408  }
409 
410  return srcSliceH;
411 }
412 
413 static void packed16togbra16(const uint8_t *src, int srcStride,
414  uint16_t *dst[], int dstStride[], int srcSliceH,
415  int src_alpha, int swap, int shift, int width)
416 {
417  int x, h, i;
418  int dst_alpha = dst[3] != NULL;
419  for (h = 0; h < srcSliceH; h++) {
420  uint16_t *src_line = (uint16_t *)(src + srcStride * h);
421  switch (swap) {
422  case 3:
423  if (src_alpha && dst_alpha) {
424  for (x = 0; x < width; x++) {
425  dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
426  dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
427  dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
428  dst[3][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
429  }
430  } else if (dst_alpha) {
431  for (x = 0; x < width; x++) {
432  dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
433  dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
434  dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
435  dst[3][x] = 0xFFFF;
436  }
437  } else if (src_alpha) {
438  for (x = 0; x < width; x++) {
439  dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
440  dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
441  dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
442  src_line++;
443  }
444  } else {
445  for (x = 0; x < width; x++) {
446  dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
447  dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
448  dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
449  }
450  }
451  break;
452  case 2:
453  if (src_alpha && dst_alpha) {
454  for (x = 0; x < width; x++) {
455  dst[0][x] = av_bswap16(*src_line++ >> shift);
456  dst[1][x] = av_bswap16(*src_line++ >> shift);
457  dst[2][x] = av_bswap16(*src_line++ >> shift);
458  dst[3][x] = av_bswap16(*src_line++ >> shift);
459  }
460  } else if (dst_alpha) {
461  for (x = 0; x < width; x++) {
462  dst[0][x] = av_bswap16(*src_line++ >> shift);
463  dst[1][x] = av_bswap16(*src_line++ >> shift);
464  dst[2][x] = av_bswap16(*src_line++ >> shift);
465  dst[3][x] = 0xFFFF;
466  }
467  } else if (src_alpha) {
468  for (x = 0; x < width; x++) {
469  dst[0][x] = av_bswap16(*src_line++ >> shift);
470  dst[1][x] = av_bswap16(*src_line++ >> shift);
471  dst[2][x] = av_bswap16(*src_line++ >> shift);
472  src_line++;
473  }
474  } else {
475  for (x = 0; x < width; x++) {
476  dst[0][x] = av_bswap16(*src_line++ >> shift);
477  dst[1][x] = av_bswap16(*src_line++ >> shift);
478  dst[2][x] = av_bswap16(*src_line++ >> shift);
479  }
480  }
481  break;
482  case 1:
483  if (src_alpha && dst_alpha) {
484  for (x = 0; x < width; x++) {
485  dst[0][x] = av_bswap16(*src_line++) >> shift;
486  dst[1][x] = av_bswap16(*src_line++) >> shift;
487  dst[2][x] = av_bswap16(*src_line++) >> shift;
488  dst[3][x] = av_bswap16(*src_line++) >> shift;
489  }
490  } else if (dst_alpha) {
491  for (x = 0; x < width; x++) {
492  dst[0][x] = av_bswap16(*src_line++) >> shift;
493  dst[1][x] = av_bswap16(*src_line++) >> shift;
494  dst[2][x] = av_bswap16(*src_line++) >> shift;
495  dst[3][x] = 0xFFFF;
496  }
497  } else if (src_alpha) {
498  for (x = 0; x < width; x++) {
499  dst[0][x] = av_bswap16(*src_line++) >> shift;
500  dst[1][x] = av_bswap16(*src_line++) >> shift;
501  dst[2][x] = av_bswap16(*src_line++) >> shift;
502  src_line++;
503  }
504  } else {
505  for (x = 0; x < width; x++) {
506  dst[0][x] = av_bswap16(*src_line++) >> shift;
507  dst[1][x] = av_bswap16(*src_line++) >> shift;
508  dst[2][x] = av_bswap16(*src_line++) >> shift;
509  }
510  }
511  break;
512  default:
513  if (src_alpha && dst_alpha) {
514  for (x = 0; x < width; x++) {
515  dst[0][x] = *src_line++ >> shift;
516  dst[1][x] = *src_line++ >> shift;
517  dst[2][x] = *src_line++ >> shift;
518  dst[3][x] = *src_line++ >> shift;
519  }
520  } else if (dst_alpha) {
521  for (x = 0; x < width; x++) {
522  dst[0][x] = *src_line++ >> shift;
523  dst[1][x] = *src_line++ >> shift;
524  dst[2][x] = *src_line++ >> shift;
525  dst[3][x] = 0xFFFF;
526  }
527  } else if (src_alpha) {
528  for (x = 0; x < width; x++) {
529  dst[0][x] = *src_line++ >> shift;
530  dst[1][x] = *src_line++ >> shift;
531  dst[2][x] = *src_line++ >> shift;
532  src_line++;
533  }
534  } else {
535  for (x = 0; x < width; x++) {
536  dst[0][x] = *src_line++ >> shift;
537  dst[1][x] = *src_line++ >> shift;
538  dst[2][x] = *src_line++ >> shift;
539  }
540  }
541  }
542  for (i = 0; i < 4; i++)
543  dst[i] += dstStride[i] >> 1;
544  }
545 }
546 
547 static int Rgb16ToPlanarRgb16Wrapper(SwsContext *c, const uint8_t *src[],
548  int srcStride[], int srcSliceY, int srcSliceH,
549  uint8_t *dst[], int dstStride[])
550 {
551  uint16_t *dst2013[] = { (uint16_t *)dst[2], (uint16_t *)dst[0], (uint16_t *)dst[1], (uint16_t *)dst[3] };
552  uint16_t *dst1023[] = { (uint16_t *)dst[1], (uint16_t *)dst[0], (uint16_t *)dst[2], (uint16_t *)dst[3] };
553  int stride2013[] = { dstStride[2], dstStride[0], dstStride[1], dstStride[3] };
554  int stride1023[] = { dstStride[1], dstStride[0], dstStride[2], dstStride[3] };
555  const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
556  const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
557  int bpc = dst_format->comp[0].depth_minus1 + 1;
558  int alpha = src_format->flags & AV_PIX_FMT_FLAG_ALPHA;
559  int swap = 0;
560  if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
561  !HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
562  swap++;
563  if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
564  !HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
565  swap += 2;
566 
567  if ((dst_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
568  (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) || bpc < 9) {
569  av_log(c, AV_LOG_ERROR, "unsupported conversion to planar RGB %s -> %s\n",
570  src_format->name, dst_format->name);
571  return srcSliceH;
572  }
573  switch (c->srcFormat) {
574  case AV_PIX_FMT_RGB48LE:
575  case AV_PIX_FMT_RGB48BE:
576  case AV_PIX_FMT_RGBA64LE:
577  case AV_PIX_FMT_RGBA64BE:
578  packed16togbra16(src[0] + srcSliceY * srcStride[0], srcStride[0],
579  dst2013, stride2013, srcSliceH, alpha, swap,
580  16 - bpc, c->srcW);
581  break;
582  case AV_PIX_FMT_BGR48LE:
583  case AV_PIX_FMT_BGR48BE:
584  case AV_PIX_FMT_BGRA64LE:
585  case AV_PIX_FMT_BGRA64BE:
586  packed16togbra16(src[0] + srcSliceY * srcStride[0], srcStride[0],
587  dst1023, stride1023, srcSliceH, alpha, swap,
588  16 - bpc, c->srcW);
589  break;
590  default:
591  av_log(c, AV_LOG_ERROR,
592  "unsupported conversion to planar RGB %s -> %s\n",
593  src_format->name, dst_format->name);
594  }
595 
596  return srcSliceH;
597 }
598 
599 static void gbr16ptopacked16(const uint16_t *src[], int srcStride[],
600  uint8_t *dst, int dstStride, int srcSliceH,
601  int alpha, int swap, int bpp, int width)
602 {
603  int x, h, i;
604  int src_alpha = src[3] != NULL;
605  int scale_high = 16 - bpp, scale_low = (bpp - 8) * 2;
606  for (h = 0; h < srcSliceH; h++) {
607  uint16_t *dest = (uint16_t *)(dst + dstStride * h);
608  uint16_t component;
609 
610  switch(swap) {
611  case 3:
612  if (alpha && !src_alpha) {
613  for (x = 0; x < width; x++) {
614  component = av_bswap16(src[0][x]);
615  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
616  component = av_bswap16(src[1][x]);
617  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
618  component = av_bswap16(src[2][x]);
619  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
620  *dest++ = 0xffff;
621  }
622  } else if (alpha && src_alpha) {
623  for (x = 0; x < width; x++) {
624  component = av_bswap16(src[0][x]);
625  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
626  component = av_bswap16(src[1][x]);
627  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
628  component = av_bswap16(src[2][x]);
629  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
630  component = av_bswap16(src[3][x]);
631  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
632  }
633  } else {
634  for (x = 0; x < width; x++) {
635  component = av_bswap16(src[0][x]);
636  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
637  component = av_bswap16(src[1][x]);
638  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
639  component = av_bswap16(src[2][x]);
640  *dest++ = av_bswap16(component << scale_high | component >> scale_low);
641  }
642  }
643  break;
644  case 2:
645  if (alpha && !src_alpha) {
646  for (x = 0; x < width; x++) {
647  *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
648  *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
649  *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
650  *dest++ = 0xffff;
651  }
652  } else if (alpha && src_alpha) {
653  for (x = 0; x < width; x++) {
654  *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
655  *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
656  *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
657  *dest++ = av_bswap16(src[3][x] << scale_high | src[3][x] >> scale_low);
658  }
659  } else {
660  for (x = 0; x < width; x++) {
661  *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
662  *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
663  *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
664  }
665  }
666  break;
667  case 1:
668  if (alpha && !src_alpha) {
669  for (x = 0; x < width; x++) {
670  *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
671  *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
672  *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
673  *dest++ = 0xffff;
674  }
675  } else if (alpha && src_alpha) {
676  for (x = 0; x < width; x++) {
677  *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
678  *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
679  *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
680  *dest++ = av_bswap16(src[3][x]) << scale_high | av_bswap16(src[3][x]) >> scale_low;
681  }
682  } else {
683  for (x = 0; x < width; x++) {
684  *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
685  *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
686  *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
687  }
688  }
689  break;
690  default:
691  if (alpha && !src_alpha) {
692  for (x = 0; x < width; x++) {
693  *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
694  *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
695  *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
696  *dest++ = 0xffff;
697  }
698  } else if (alpha && src_alpha) {
699  for (x = 0; x < width; x++) {
700  *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
701  *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
702  *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
703  *dest++ = src[3][x] << scale_high | src[3][x] >> scale_low;
704  }
705  } else {
706  for (x = 0; x < width; x++) {
707  *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
708  *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
709  *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
710  }
711  }
712  }
713  for (i = 0; i < 3 + src_alpha; i++)
714  src[i] += srcStride[i] >> 1;
715  }
716 }
717 
718 static int planarRgb16ToRgb16Wrapper(SwsContext *c, const uint8_t *src[],
719  int srcStride[], int srcSliceY, int srcSliceH,
720  uint8_t *dst[], int dstStride[])
721 {
722  const uint16_t *src102[] = { (uint16_t *)src[1], (uint16_t *)src[0], (uint16_t *)src[2], (uint16_t *)src[3] };
723  const uint16_t *src201[] = { (uint16_t *)src[2], (uint16_t *)src[0], (uint16_t *)src[1], (uint16_t *)src[3] };
724  int stride102[] = { srcStride[1], srcStride[0], srcStride[2], srcStride[3] };
725  int stride201[] = { srcStride[2], srcStride[0], srcStride[1], srcStride[3] };
726  const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
727  const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
728  int bits_per_sample = src_format->comp[0].depth_minus1 + 1;
729  int swap = 0;
730  if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
731  !HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
732  swap++;
733  if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
734  !HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
735  swap += 2;
736 
737  if ((src_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
738  (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) ||
739  bits_per_sample <= 8) {
740  av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
741  src_format->name, dst_format->name);
742  return srcSliceH;
743  }
744  switch (c->dstFormat) {
745  case AV_PIX_FMT_BGR48LE:
746  case AV_PIX_FMT_BGR48BE:
747  gbr16ptopacked16(src102, stride102,
748  dst[0] + srcSliceY * dstStride[0], dstStride[0],
749  srcSliceH, 0, swap, bits_per_sample, c->srcW);
750  break;
751  case AV_PIX_FMT_RGB48LE:
752  case AV_PIX_FMT_RGB48BE:
753  gbr16ptopacked16(src201, stride201,
754  dst[0] + srcSliceY * dstStride[0], dstStride[0],
755  srcSliceH, 0, swap, bits_per_sample, c->srcW);
756  break;
757  case AV_PIX_FMT_RGBA64LE:
758  case AV_PIX_FMT_RGBA64BE:
759  gbr16ptopacked16(src201, stride201,
760  dst[0] + srcSliceY * dstStride[0], dstStride[0],
761  srcSliceH, 1, swap, bits_per_sample, c->srcW);
762  break;
763  case AV_PIX_FMT_BGRA64LE:
764  case AV_PIX_FMT_BGRA64BE:
765  gbr16ptopacked16(src102, stride102,
766  dst[0] + srcSliceY * dstStride[0], dstStride[0],
767  srcSliceH, 1, swap, bits_per_sample, c->srcW);
768  break;
769  default:
770  av_log(c, AV_LOG_ERROR,
771  "unsupported planar RGB conversion %s -> %s\n",
772  src_format->name, dst_format->name);
773  }
774 
775  return srcSliceH;
776 }
777 
778 static void gbr24ptopacked24(const uint8_t *src[], int srcStride[],
779  uint8_t *dst, int dstStride, int srcSliceH,
780  int width)
781 {
782  int x, h, i;
783  for (h = 0; h < srcSliceH; h++) {
784  uint8_t *dest = dst + dstStride * h;
785  for (x = 0; x < width; x++) {
786  *dest++ = src[0][x];
787  *dest++ = src[1][x];
788  *dest++ = src[2][x];
789  }
790 
791  for (i = 0; i < 3; i++)
792  src[i] += srcStride[i];
793  }
794 }
795 
796 static void gbr24ptopacked32(const uint8_t *src[], int srcStride[],
797  uint8_t *dst, int dstStride, int srcSliceH,
798  int alpha_first, int width)
799 {
800  int x, h, i;
801  for (h = 0; h < srcSliceH; h++) {
802  uint8_t *dest = dst + dstStride * h;
803 
804  if (alpha_first) {
805  for (x = 0; x < width; x++) {
806  *dest++ = 0xff;
807  *dest++ = src[0][x];
808  *dest++ = src[1][x];
809  *dest++ = src[2][x];
810  }
811  } else {
812  for (x = 0; x < width; x++) {
813  *dest++ = src[0][x];
814  *dest++ = src[1][x];
815  *dest++ = src[2][x];
816  *dest++ = 0xff;
817  }
818  }
819 
820  for (i = 0; i < 3; i++)
821  src[i] += srcStride[i];
822  }
823 }
824 
825 static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t *src[],
826  int srcStride[], int srcSliceY, int srcSliceH,
827  uint8_t *dst[], int dstStride[])
828 {
829  int alpha_first = 0;
830  const uint8_t *src102[] = { src[1], src[0], src[2] };
831  const uint8_t *src201[] = { src[2], src[0], src[1] };
832  int stride102[] = { srcStride[1], srcStride[0], srcStride[2] };
833  int stride201[] = { srcStride[2], srcStride[0], srcStride[1] };
834 
835  if (c->srcFormat != AV_PIX_FMT_GBRP) {
836  av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
837  av_get_pix_fmt_name(c->srcFormat),
838  av_get_pix_fmt_name(c->dstFormat));
839  return srcSliceH;
840  }
841 
842  switch (c->dstFormat) {
843  case AV_PIX_FMT_BGR24:
844  gbr24ptopacked24(src102, stride102,
845  dst[0] + srcSliceY * dstStride[0], dstStride[0],
846  srcSliceH, c->srcW);
847  break;
848 
849  case AV_PIX_FMT_RGB24:
850  gbr24ptopacked24(src201, stride201,
851  dst[0] + srcSliceY * dstStride[0], dstStride[0],
852  srcSliceH, c->srcW);
853  break;
854 
855  case AV_PIX_FMT_ARGB:
856  alpha_first = 1;
857  case AV_PIX_FMT_RGBA:
858  gbr24ptopacked32(src201, stride201,
859  dst[0] + srcSliceY * dstStride[0], dstStride[0],
860  srcSliceH, alpha_first, c->srcW);
861  break;
862 
863  case AV_PIX_FMT_ABGR:
864  alpha_first = 1;
865  case AV_PIX_FMT_BGRA:
866  gbr24ptopacked32(src102, stride102,
867  dst[0] + srcSliceY * dstStride[0], dstStride[0],
868  srcSliceH, alpha_first, c->srcW);
869  break;
870 
871  default:
872  av_log(c, AV_LOG_ERROR,
873  "unsupported planar RGB conversion %s -> %s\n",
874  av_get_pix_fmt_name(c->srcFormat),
875  av_get_pix_fmt_name(c->dstFormat));
876  }
877 
878  return srcSliceH;
879 }
880 
881 static int planarRgbToplanarRgbWrapper(SwsContext *c,
882  const uint8_t *src[], int srcStride[],
883  int srcSliceY, int srcSliceH,
884  uint8_t *dst[], int dstStride[])
885 {
886  copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
887  dst[0], dstStride[0]);
888  copyPlane(src[1], srcStride[1], srcSliceY, srcSliceH, c->srcW,
889  dst[1], dstStride[1]);
890  copyPlane(src[2], srcStride[2], srcSliceY, srcSliceH, c->srcW,
891  dst[2], dstStride[2]);
892  if (dst[3])
893  fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
894 
895  return srcSliceH;
896 }
897 
898 static void packedtogbr24p(const uint8_t *src, int srcStride,
899  uint8_t *dst[], int dstStride[], int srcSliceH,
900  int alpha_first, int inc_size, int width)
901 {
902  uint8_t *dest[3];
903  int x, h;
904 
905  dest[0] = dst[0];
906  dest[1] = dst[1];
907  dest[2] = dst[2];
908 
909  if (alpha_first)
910  src++;
911 
912  for (h = 0; h < srcSliceH; h++) {
913  for (x = 0; x < width; x++) {
914  dest[0][x] = src[0];
915  dest[1][x] = src[1];
916  dest[2][x] = src[2];
917 
918  src += inc_size;
919  }
920  src += srcStride - width * inc_size;
921  dest[0] += dstStride[0];
922  dest[1] += dstStride[1];
923  dest[2] += dstStride[2];
924  }
925 }
926 
927 static int rgbToPlanarRgbWrapper(SwsContext *c, const uint8_t *src[],
928  int srcStride[], int srcSliceY, int srcSliceH,
929  uint8_t *dst[], int dstStride[])
930 {
931  int alpha_first = 0;
932  int stride102[] = { dstStride[1], dstStride[0], dstStride[2] };
933  int stride201[] = { dstStride[2], dstStride[0], dstStride[1] };
934  uint8_t *dst102[] = { dst[1] + srcSliceY * dstStride[1],
935  dst[0] + srcSliceY * dstStride[0],
936  dst[2] + srcSliceY * dstStride[2] };
937  uint8_t *dst201[] = { dst[2] + srcSliceY * dstStride[2],
938  dst[0] + srcSliceY * dstStride[0],
939  dst[1] + srcSliceY * dstStride[1] };
940 
941  switch (c->srcFormat) {
942  case AV_PIX_FMT_RGB24:
943  packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
944  stride201, srcSliceH, alpha_first, 3, c->srcW);
945  break;
946  case AV_PIX_FMT_BGR24:
947  packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
948  stride102, srcSliceH, alpha_first, 3, c->srcW);
949  break;
950  case AV_PIX_FMT_ARGB:
951  alpha_first = 1;
952  case AV_PIX_FMT_RGBA:
953  packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
954  stride201, srcSliceH, alpha_first, 4, c->srcW);
955  break;
956  case AV_PIX_FMT_ABGR:
957  alpha_first = 1;
958  case AV_PIX_FMT_BGRA:
959  packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
960  stride102, srcSliceH, alpha_first, 4, c->srcW);
961  break;
962  default:
963  av_log(c, AV_LOG_ERROR,
964  "unsupported planar RGB conversion %s -> %s\n",
965  av_get_pix_fmt_name(c->srcFormat),
966  av_get_pix_fmt_name(c->dstFormat));
967  }
968 
969  return srcSliceH;
970 }
971 
972 #define BAYER_GBRG
973 #define BAYER_8
974 #define BAYER_RENAME(x) bayer_gbrg8_to_##x
975 #include "bayer_template.c"
976 
977 #define BAYER_GBRG
978 #define BAYER_16LE
979 #define BAYER_RENAME(x) bayer_gbrg16le_to_##x
980 #include "bayer_template.c"
981 
982 #define BAYER_GBRG
983 #define BAYER_16BE
984 #define BAYER_RENAME(x) bayer_gbrg16be_to_##x
985 #include "bayer_template.c"
986 
987 #define BAYER_GRBG
988 #define BAYER_8
989 #define BAYER_RENAME(x) bayer_grbg8_to_##x
990 #include "bayer_template.c"
991 
992 #define BAYER_GRBG
993 #define BAYER_16LE
994 #define BAYER_RENAME(x) bayer_grbg16le_to_##x
995 #include "bayer_template.c"
996 
997 #define BAYER_GRBG
998 #define BAYER_16BE
999 #define BAYER_RENAME(x) bayer_grbg16be_to_##x
1000 #include "bayer_template.c"
1001 
1002 #define BAYER_BGGR
1003 #define BAYER_8
1004 #define BAYER_RENAME(x) bayer_bggr8_to_##x
1005 #include "bayer_template.c"
1006 
1007 #define BAYER_BGGR
1008 #define BAYER_16LE
1009 #define BAYER_RENAME(x) bayer_bggr16le_to_##x
1010 #include "bayer_template.c"
1011 
1012 #define BAYER_BGGR
1013 #define BAYER_16BE
1014 #define BAYER_RENAME(x) bayer_bggr16be_to_##x
1015 #include "bayer_template.c"
1016 
1017 #define BAYER_RGGB
1018 #define BAYER_8
1019 #define BAYER_RENAME(x) bayer_rggb8_to_##x
1020 #include "bayer_template.c"
1021 
1022 #define BAYER_RGGB
1023 #define BAYER_16LE
1024 #define BAYER_RENAME(x) bayer_rggb16le_to_##x
1025 #include "bayer_template.c"
1026 
1027 #define BAYER_RGGB
1028 #define BAYER_16BE
1029 #define BAYER_RENAME(x) bayer_rggb16be_to_##x
1030 #include "bayer_template.c"
1031 
1032 static int bayer_to_rgb24_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1033  int srcSliceH, uint8_t* dst[], int dstStride[])
1034 {
1035  uint8_t *dstPtr= dst[0];
1036  const uint8_t *srcPtr= src[0];
1037  int i;
1038  void (*copy) (const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1039  void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1040 
1041  switch(c->srcFormat) {
1042 #define CASE(pixfmt, prefix) \
1043  case pixfmt: copy = bayer_##prefix##_to_rgb24_copy; \
1044  interpolate = bayer_##prefix##_to_rgb24_interpolate; \
1045  break;
1046  CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
1047  CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1048  CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1049  CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
1050  CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1051  CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1052  CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
1053  CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1054  CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1055  CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
1056  CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1057  CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1058 #undef CASE
1059  default: return 0;
1060  }
1061 
1062  copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1063  srcPtr += 2 * srcStride[0];
1064  dstPtr += 2 * dstStride[0];
1065 
1066  for (i = 2; i < srcSliceH - 2; i += 2) {
1067  interpolate(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1068  srcPtr += 2 * srcStride[0];
1069  dstPtr += 2 * dstStride[0];
1070  }
1071 
1072  copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1073  return srcSliceH;
1074 }
1075 
1076 static int bayer_to_yv12_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1077  int srcSliceH, uint8_t* dst[], int dstStride[])
1078 {
1079  const uint8_t *srcPtr= src[0];
1080  uint8_t *dstY= dst[0];
1081  uint8_t *dstU= dst[1];
1082  uint8_t *dstV= dst[2];
1083  int i;
1084  void (*copy) (const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, int32_t *rgb2yuv);
1085  void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dstY, uint8_t *dstU, uint8_t *dstV, int luma_stride, int width, int32_t *rgb2yuv);
1086 
1087  switch(c->srcFormat) {
1088 #define CASE(pixfmt, prefix) \
1089  case pixfmt: copy = bayer_##prefix##_to_yv12_copy; \
1090  interpolate = bayer_##prefix##_to_yv12_interpolate; \
1091  break;
1092  CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
1093  CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1094  CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1095  CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
1096  CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1097  CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1098  CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
1099  CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1100  CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1101  CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
1102  CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1103  CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1104 #undef CASE
1105  default: return 0;
1106  }
1107 
1108  copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1109  srcPtr += 2 * srcStride[0];
1110  dstY += 2 * dstStride[0];
1111  dstU += dstStride[1];
1112  dstV += dstStride[1];
1113 
1114  for (i = 2; i < srcSliceH - 2; i += 2) {
1115  interpolate(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1116  srcPtr += 2 * srcStride[0];
1117  dstY += 2 * dstStride[0];
1118  dstU += dstStride[1];
1119  dstV += dstStride[1];
1120  }
1121 
1122  copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1123  return srcSliceH;
1124 }
1125 
1126 #define isRGBA32(x) ( \
1127  (x) == AV_PIX_FMT_ARGB \
1128  || (x) == AV_PIX_FMT_RGBA \
1129  || (x) == AV_PIX_FMT_BGRA \
1130  || (x) == AV_PIX_FMT_ABGR \
1131  )
1132 
1133 #define isRGBA64(x) ( \
1134  (x) == AV_PIX_FMT_RGBA64LE \
1135  || (x) == AV_PIX_FMT_RGBA64BE \
1136  || (x) == AV_PIX_FMT_BGRA64LE \
1137  || (x) == AV_PIX_FMT_BGRA64BE \
1138  )
1139 
1140 #define isRGB48(x) ( \
1141  (x) == AV_PIX_FMT_RGB48LE \
1142  || (x) == AV_PIX_FMT_RGB48BE \
1143  || (x) == AV_PIX_FMT_BGR48LE \
1144  || (x) == AV_PIX_FMT_BGR48BE \
1145  )
1146 
1147 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1148 typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int);
1149 static rgbConvFn findRgbConvFn(SwsContext *c)
1150 {
1151  const enum AVPixelFormat srcFormat = c->srcFormat;
1152  const enum AVPixelFormat dstFormat = c->dstFormat;
1153  const int srcId = c->srcFormatBpp;
1154  const int dstId = c->dstFormatBpp;
1155  rgbConvFn conv = NULL;
1156 
1157 #define IS_NOT_NE(bpp, desc) \
1158  (((bpp + 7) >> 3) == 2 && \
1159  (!(desc->flags & AV_PIX_FMT_FLAG_BE) != !HAVE_BIGENDIAN))
1160 
1161 #define CONV_IS(src, dst) (srcFormat == AV_PIX_FMT_##src && dstFormat == AV_PIX_FMT_##dst)
1162 
1163  if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {
1164  if ( CONV_IS(ABGR, RGBA)
1165  || CONV_IS(ARGB, BGRA)
1166  || CONV_IS(BGRA, ARGB)
1167  || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;
1168  else if (CONV_IS(ABGR, ARGB)
1169  || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;
1170  else if (CONV_IS(ABGR, BGRA)
1171  || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;
1172  else if (CONV_IS(BGRA, RGBA)
1173  || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;
1174  else if (CONV_IS(BGRA, ABGR)
1175  || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;
1176  } else if (isRGB48(srcFormat) && isRGB48(dstFormat)) {
1177  if (CONV_IS(RGB48LE, BGR48LE)
1178  || CONV_IS(BGR48LE, RGB48LE)
1179  || CONV_IS(RGB48BE, BGR48BE)
1180  || CONV_IS(BGR48BE, RGB48BE)) conv = rgb48tobgr48_nobswap;
1181  else if (CONV_IS(RGB48LE, BGR48BE)
1182  || CONV_IS(BGR48LE, RGB48BE)
1183  || CONV_IS(RGB48BE, BGR48LE)
1184  || CONV_IS(BGR48BE, RGB48LE)) conv = rgb48tobgr48_bswap;
1185  } else if (isRGBA64(srcFormat) && isRGB48(dstFormat)) {
1186  if (CONV_IS(RGBA64LE, BGR48LE)
1187  || CONV_IS(BGRA64LE, RGB48LE)
1188  || CONV_IS(RGBA64BE, BGR48BE)
1189  || CONV_IS(BGRA64BE, RGB48BE)) conv = rgb64tobgr48_nobswap;
1190  else if (CONV_IS(RGBA64LE, BGR48BE)
1191  || CONV_IS(BGRA64LE, RGB48BE)
1192  || CONV_IS(RGBA64BE, BGR48LE)
1193  || CONV_IS(BGRA64BE, RGB48LE)) conv = rgb64tobgr48_bswap;
1194  else if (CONV_IS(RGBA64LE, RGB48LE)
1195  || CONV_IS(BGRA64LE, BGR48LE)
1196  || CONV_IS(RGBA64BE, RGB48BE)
1197  || CONV_IS(BGRA64BE, BGR48BE)) conv = rgb64to48_nobswap;
1198  else if (CONV_IS(RGBA64LE, RGB48BE)
1199  || CONV_IS(BGRA64LE, BGR48BE)
1200  || CONV_IS(RGBA64BE, RGB48LE)
1201  || CONV_IS(BGRA64BE, BGR48LE)) conv = rgb64to48_bswap;
1202  } else
1203  /* BGR -> BGR */
1204  if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) ||
1205  (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
1206  switch (srcId | (dstId << 16)) {
1207  case 0x000F000C: conv = rgb12to15; break;
1208  case 0x000F0010: conv = rgb16to15; break;
1209  case 0x000F0018: conv = rgb24to15; break;
1210  case 0x000F0020: conv = rgb32to15; break;
1211  case 0x0010000F: conv = rgb15to16; break;
1212  case 0x00100018: conv = rgb24to16; break;
1213  case 0x00100020: conv = rgb32to16; break;
1214  case 0x0018000F: conv = rgb15to24; break;
1215  case 0x00180010: conv = rgb16to24; break;
1216  case 0x00180020: conv = rgb32to24; break;
1217  case 0x0020000F: conv = rgb15to32; break;
1218  case 0x00200010: conv = rgb16to32; break;
1219  case 0x00200018: conv = rgb24to32; break;
1220  }
1221  } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) ||
1222  (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
1223  switch (srcId | (dstId << 16)) {
1224  case 0x000C000C: conv = rgb12tobgr12; break;
1225  case 0x000F000F: conv = rgb15tobgr15; break;
1226  case 0x000F0010: conv = rgb16tobgr15; break;
1227  case 0x000F0018: conv = rgb24tobgr15; break;
1228  case 0x000F0020: conv = rgb32tobgr15; break;
1229  case 0x0010000F: conv = rgb15tobgr16; break;
1230  case 0x00100010: conv = rgb16tobgr16; break;
1231  case 0x00100018: conv = rgb24tobgr16; break;
1232  case 0x00100020: conv = rgb32tobgr16; break;
1233  case 0x0018000F: conv = rgb15tobgr24; break;
1234  case 0x00180010: conv = rgb16tobgr24; break;
1235  case 0x00180018: conv = rgb24tobgr24; break;
1236  case 0x00180020: conv = rgb32tobgr24; break;
1237  case 0x0020000F: conv = rgb15tobgr32; break;
1238  case 0x00200010: conv = rgb16tobgr32; break;
1239  case 0x00200018: conv = rgb24tobgr32; break;
1240  }
1241  }
1242 
1243  if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(srcFormat) && ALT32_CORR<0)
1244  return NULL;
1245 
1246  return conv;
1247 }
1248 
1249 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1250 static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
1251  int srcSliceY, int srcSliceH, uint8_t *dst[],
1252  int dstStride[])
1253 
1254 {
1255  const enum AVPixelFormat srcFormat = c->srcFormat;
1256  const enum AVPixelFormat dstFormat = c->dstFormat;
1257  const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1258  const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1259  const int srcBpp = (c->srcFormatBpp + 7) >> 3;
1260  const int dstBpp = (c->dstFormatBpp + 7) >> 3;
1261  rgbConvFn conv = findRgbConvFn(c);
1262 
1263  if (!conv) {
1264  av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1265  av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1266  } else {
1267  const uint8_t *srcPtr = src[0];
1268  uint8_t *dstPtr = dst[0];
1269  int src_bswap = IS_NOT_NE(c->srcFormatBpp, desc_src);
1270  int dst_bswap = IS_NOT_NE(c->dstFormatBpp, desc_dst);
1271 
1272  if ((srcFormat == AV_PIX_FMT_RGB32_1 || srcFormat == AV_PIX_FMT_BGR32_1) &&
1273  !isRGBA32(dstFormat))
1274  srcPtr += ALT32_CORR;
1275 
1276  if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) &&
1277  !isRGBA32(srcFormat)) {
1278  int i;
1279  av_assert0(ALT32_CORR == 1);
1280  for (i = 0; i < srcSliceH; i++)
1281  dstPtr[dstStride[0] * (srcSliceY + i)] = 255;
1282  dstPtr += ALT32_CORR;
1283  }
1284 
1285  if (dstStride[0] * srcBpp == srcStride[0] * dstBpp && srcStride[0] > 0 &&
1286  !(srcStride[0] % srcBpp) && !dst_bswap && !src_bswap)
1287  conv(srcPtr, dstPtr + dstStride[0] * srcSliceY,
1288  (srcSliceH - 1) * srcStride[0] + c->srcW * srcBpp);
1289  else {
1290  int i, j;
1291  dstPtr += dstStride[0] * srcSliceY;
1292 
1293  for (i = 0; i < srcSliceH; i++) {
1294  if(src_bswap) {
1295  for(j=0; j<c->srcW; j++)
1296  ((uint16_t*)c->formatConvBuffer)[j] = av_bswap16(((uint16_t*)srcPtr)[j]);
1297  conv(c->formatConvBuffer, dstPtr, c->srcW * srcBpp);
1298  }else
1299  conv(srcPtr, dstPtr, c->srcW * srcBpp);
1300  if(dst_bswap)
1301  for(j=0; j<c->srcW; j++)
1302  ((uint16_t*)dstPtr)[j] = av_bswap16(((uint16_t*)dstPtr)[j]);
1303  srcPtr += srcStride[0];
1304  dstPtr += dstStride[0];
1305  }
1306  }
1307  }
1308  return srcSliceH;
1309 }
1310 
1311 static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
1312  int srcStride[], int srcSliceY, int srcSliceH,
1313  uint8_t *dst[], int dstStride[])
1314 {
1315  ff_rgb24toyv12(
1316  src[0],
1317  dst[0] + srcSliceY * dstStride[0],
1318  dst[1] + (srcSliceY >> 1) * dstStride[1],
1319  dst[2] + (srcSliceY >> 1) * dstStride[2],
1320  c->srcW, srcSliceH,
1321  dstStride[0], dstStride[1], srcStride[0],
1322  c->input_rgb2yuv_table);
1323  if (dst[3])
1324  fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1325  return srcSliceH;
1326 }
1327 
1328 static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
1329  int srcStride[], int srcSliceY, int srcSliceH,
1330  uint8_t *dst[], int dstStride[])
1331 {
1332  copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
1333  dst[0], dstStride[0]);
1334 
1335  planar2x(src[1], dst[1] + dstStride[1] * (srcSliceY >> 1), c->chrSrcW,
1336  srcSliceH >> 2, srcStride[1], dstStride[1]);
1337  planar2x(src[2], dst[2] + dstStride[2] * (srcSliceY >> 1), c->chrSrcW,
1338  srcSliceH >> 2, srcStride[2], dstStride[2]);
1339  if (dst[3])
1340  fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1341  return srcSliceH;
1342 }
1343 
1344 /* unscaled copy like stuff (assumes nearly identical formats) */
1345 static int packedCopyWrapper(SwsContext *c, const uint8_t *src[],
1346  int srcStride[], int srcSliceY, int srcSliceH,
1347  uint8_t *dst[], int dstStride[])
1348 {
1349  if (dstStride[0] == srcStride[0] && srcStride[0] > 0)
1350  memcpy(dst[0] + dstStride[0] * srcSliceY, src[0], srcSliceH * dstStride[0]);
1351  else {
1352  int i;
1353  const uint8_t *srcPtr = src[0];
1354  uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
1355  int length = 0;
1356 
1357  /* universal length finder */
1358  while (length + c->srcW <= FFABS(dstStride[0]) &&
1359  length + c->srcW <= FFABS(srcStride[0]))
1360  length += c->srcW;
1361  av_assert1(length != 0);
1362 
1363  for (i = 0; i < srcSliceH; i++) {
1364  memcpy(dstPtr, srcPtr, length);
1365  srcPtr += srcStride[0];
1366  dstPtr += dstStride[0];
1367  }
1368  }
1369  return srcSliceH;
1370 }
1371 
1372 #define DITHER_COPY(dst, dstStride, src, srcStride, bswap, dbswap)\
1373  uint16_t scale= dither_scale[dst_depth-1][src_depth-1];\
1374  int shift= src_depth-dst_depth + dither_scale[src_depth-2][dst_depth-1];\
1375  for (i = 0; i < height; i++) {\
1376  const uint8_t *dither= dithers[src_depth-9][i&7];\
1377  for (j = 0; j < length-7; j+=8){\
1378  dst[j+0] = dbswap((bswap(src[j+0]) + dither[0])*scale>>shift);\
1379  dst[j+1] = dbswap((bswap(src[j+1]) + dither[1])*scale>>shift);\
1380  dst[j+2] = dbswap((bswap(src[j+2]) + dither[2])*scale>>shift);\
1381  dst[j+3] = dbswap((bswap(src[j+3]) + dither[3])*scale>>shift);\
1382  dst[j+4] = dbswap((bswap(src[j+4]) + dither[4])*scale>>shift);\
1383  dst[j+5] = dbswap((bswap(src[j+5]) + dither[5])*scale>>shift);\
1384  dst[j+6] = dbswap((bswap(src[j+6]) + dither[6])*scale>>shift);\
1385  dst[j+7] = dbswap((bswap(src[j+7]) + dither[7])*scale>>shift);\
1386  }\
1387  for (; j < length; j++)\
1388  dst[j] = dbswap((bswap(src[j]) + dither[j&7])*scale>>shift);\
1389  dst += dstStride;\
1390  src += srcStride;\
1391  }
1392 
1393 static int planarCopyWrapper(SwsContext *c, const uint8_t *src[],
1394  int srcStride[], int srcSliceY, int srcSliceH,
1395  uint8_t *dst[], int dstStride[])
1396 {
1397  const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1398  const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1399  int plane, i, j;
1400  for (plane = 0; plane < 4; plane++) {
1401  int length = (plane == 0 || plane == 3) ? c->srcW : FF_CEIL_RSHIFT(c->srcW, c->chrDstHSubSample);
1402  int y = (plane == 0 || plane == 3) ? srcSliceY: FF_CEIL_RSHIFT(srcSliceY, c->chrDstVSubSample);
1403  int height = (plane == 0 || plane == 3) ? srcSliceH: FF_CEIL_RSHIFT(srcSliceH, c->chrDstVSubSample);
1404  const uint8_t *srcPtr = src[plane];
1405  uint8_t *dstPtr = dst[plane] + dstStride[plane] * y;
1406  int shiftonly = plane == 1 || plane == 2 || (!c->srcRange && plane == 0);
1407 
1408  if (!dst[plane])
1409  continue;
1410  // ignore palette for GRAY8
1411  if (plane == 1 && !dst[2]) continue;
1412  if (!src[plane] || (plane == 1 && !src[2])) {
1413  if (is16BPS(c->dstFormat) || isNBPS(c->dstFormat)) {
1414  fillPlane16(dst[plane], dstStride[plane], length, height, y,
1415  plane == 3, desc_dst->comp[plane].depth_minus1,
1416  isBE(c->dstFormat));
1417  } else {
1418  fillPlane(dst[plane], dstStride[plane], length, height, y,
1419  (plane == 3) ? 255 : 128);
1420  }
1421  } else {
1422  if(isNBPS(c->srcFormat) || isNBPS(c->dstFormat)
1423  || (is16BPS(c->srcFormat) != is16BPS(c->dstFormat))
1424  ) {
1425  const int src_depth = desc_src->comp[plane].depth_minus1 + 1;
1426  const int dst_depth = desc_dst->comp[plane].depth_minus1 + 1;
1427  const uint16_t *srcPtr2 = (const uint16_t *) srcPtr;
1428  uint16_t *dstPtr2 = (uint16_t*)dstPtr;
1429 
1430  if (dst_depth == 8) {
1431  if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1432  DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, , )
1433  } else {
1434  DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, av_bswap16, )
1435  }
1436  } else if (src_depth == 8) {
1437  for (i = 0; i < height; i++) {
1438  #define COPY816(w)\
1439  if (shiftonly) {\
1440  for (j = 0; j < length; j++)\
1441  w(&dstPtr2[j], srcPtr[j]<<(dst_depth-8));\
1442  } else {\
1443  for (j = 0; j < length; j++)\
1444  w(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) |\
1445  (srcPtr[j]>>(2*8-dst_depth)));\
1446  }
1447  if(isBE(c->dstFormat)){
1448  COPY816(AV_WB16)
1449  } else {
1450  COPY816(AV_WL16)
1451  }
1452  dstPtr2 += dstStride[plane]/2;
1453  srcPtr += srcStride[plane];
1454  }
1455  } else if (src_depth <= dst_depth) {
1456  for (i = 0; i < height; i++) {
1457  j = 0;
1458  if(isBE(c->srcFormat) == HAVE_BIGENDIAN &&
1459  isBE(c->dstFormat) == HAVE_BIGENDIAN &&
1460  shiftonly) {
1461  unsigned shift = dst_depth - src_depth;
1462 #if HAVE_FAST_64BIT
1463 #define FAST_COPY_UP(shift) \
1464  for (; j < length - 3; j += 4) { \
1465  uint64_t v = AV_RN64A(srcPtr2 + j); \
1466  AV_WN64A(dstPtr2 + j, v << shift); \
1467  }
1468 #else
1469 #define FAST_COPY_UP(shift) \
1470  for (; j < length - 1; j += 2) { \
1471  uint32_t v = AV_RN32A(srcPtr2 + j); \
1472  AV_WN32A(dstPtr2 + j, v << shift); \
1473  }
1474 #endif
1475  switch (shift)
1476  {
1477  case 6: FAST_COPY_UP(6); break;
1478  case 7: FAST_COPY_UP(7); break;
1479  }
1480  }
1481 #define COPY_UP(r,w) \
1482  if(shiftonly){\
1483  for (; j < length; j++){ \
1484  unsigned int v= r(&srcPtr2[j]);\
1485  w(&dstPtr2[j], v<<(dst_depth-src_depth));\
1486  }\
1487  }else{\
1488  for (; j < length; j++){ \
1489  unsigned int v= r(&srcPtr2[j]);\
1490  w(&dstPtr2[j], (v<<(dst_depth-src_depth)) | \
1491  (v>>(2*src_depth-dst_depth)));\
1492  }\
1493  }
1494  if(isBE(c->srcFormat)){
1495  if(isBE(c->dstFormat)){
1496  COPY_UP(AV_RB16, AV_WB16)
1497  } else {
1498  COPY_UP(AV_RB16, AV_WL16)
1499  }
1500  } else {
1501  if(isBE(c->dstFormat)){
1502  COPY_UP(AV_RL16, AV_WB16)
1503  } else {
1504  COPY_UP(AV_RL16, AV_WL16)
1505  }
1506  }
1507  dstPtr2 += dstStride[plane]/2;
1508  srcPtr2 += srcStride[plane]/2;
1509  }
1510  } else {
1511  if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1512  if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1513  DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , )
1514  } else {
1515  DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , av_bswap16)
1516  }
1517  }else{
1518  if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1519  DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, )
1520  } else {
1521  DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, av_bswap16)
1522  }
1523  }
1524  }
1525  } else if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat) &&
1526  isBE(c->srcFormat) != isBE(c->dstFormat)) {
1527 
1528  for (i = 0; i < height; i++) {
1529  for (j = 0; j < length; j++)
1530  ((uint16_t *) dstPtr)[j] = av_bswap16(((const uint16_t *) srcPtr)[j]);
1531  srcPtr += srcStride[plane];
1532  dstPtr += dstStride[plane];
1533  }
1534  } else if (dstStride[plane] == srcStride[plane] &&
1535  srcStride[plane] > 0 && srcStride[plane] == length) {
1536  memcpy(dst[plane] + dstStride[plane] * y, src[plane],
1537  height * dstStride[plane]);
1538  } else {
1539  if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
1540  length *= 2;
1541  else if (!desc_src->comp[0].depth_minus1)
1542  length >>= 3; // monowhite/black
1543  for (i = 0; i < height; i++) {
1544  memcpy(dstPtr, srcPtr, length);
1545  srcPtr += srcStride[plane];
1546  dstPtr += dstStride[plane];
1547  }
1548  }
1549  }
1550  }
1551  return srcSliceH;
1552 }
1553 
1554 
1555 #define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt) \
1556  ((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) || \
1557  (src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE))
1558 
1559 
1560 void ff_get_unscaled_swscale(SwsContext *c)
1561 {
1562  const enum AVPixelFormat srcFormat = c->srcFormat;
1563  const enum AVPixelFormat dstFormat = c->dstFormat;
1564  const int flags = c->flags;
1565  const int dstH = c->dstH;
1566  int needsDither;
1567 
1568  needsDither = isAnyRGB(dstFormat) &&
1569  c->dstFormatBpp < 24 &&
1570  (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
1571 
1572  /* yv12_to_nv12 */
1573  if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) &&
1574  (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)) {
1575  c->swscale = planarToNv12Wrapper;
1576  }
1577  /* nv12_to_yv12 */
1578  if (dstFormat == AV_PIX_FMT_YUV420P &&
1579  (srcFormat == AV_PIX_FMT_NV12 || srcFormat == AV_PIX_FMT_NV21)) {
1580  c->swscale = nv12ToPlanarWrapper;
1581  }
1582  /* yuv2bgr */
1583  if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P ||
1584  srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) &&
1585  !(flags & SWS_ACCURATE_RND) && (c->dither == SWS_DITHER_BAYER || c->dither == SWS_DITHER_AUTO) && !(dstH & 1)) {
1586  c->swscale = ff_yuv2rgb_get_func_ptr(c);
1587  }
1588 
1589  if (srcFormat == AV_PIX_FMT_YUV410P && !(dstH & 3) &&
1590  (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
1591  !(flags & SWS_BITEXACT)) {
1592  c->swscale = yvu9ToYv12Wrapper;
1593  }
1594 
1595  /* bgr24toYV12 */
1596  if (srcFormat == AV_PIX_FMT_BGR24 &&
1597  (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
1598  !(flags & SWS_ACCURATE_RND))
1599  c->swscale = bgr24ToYv12Wrapper;
1600 
1601  /* RGB/BGR -> RGB/BGR (no dither needed forms) */
1602  if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c)
1603  && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
1604  c->swscale = rgbToRgbWrapper;
1605 
1606  /* RGB to planar RGB */
1607  if ((srcFormat == AV_PIX_FMT_GBRP && dstFormat == AV_PIX_FMT_GBRAP) ||
1608  (srcFormat == AV_PIX_FMT_GBRAP && dstFormat == AV_PIX_FMT_GBRP))
1609  c->swscale = planarRgbToplanarRgbWrapper;
1610 
1611 #define isByteRGB(f) ( \
1612  f == AV_PIX_FMT_RGB32 || \
1613  f == AV_PIX_FMT_RGB32_1 || \
1614  f == AV_PIX_FMT_RGB24 || \
1615  f == AV_PIX_FMT_BGR32 || \
1616  f == AV_PIX_FMT_BGR32_1 || \
1617  f == AV_PIX_FMT_BGR24)
1618 
1619  if (srcFormat == AV_PIX_FMT_GBRP && isPlanar(srcFormat) && isByteRGB(dstFormat))
1620  c->swscale = planarRgbToRgbWrapper;
1621 
1622  if ((srcFormat == AV_PIX_FMT_RGB48LE || srcFormat == AV_PIX_FMT_RGB48BE ||
1623  srcFormat == AV_PIX_FMT_BGR48LE || srcFormat == AV_PIX_FMT_BGR48BE ||
1624  srcFormat == AV_PIX_FMT_RGBA64LE || srcFormat == AV_PIX_FMT_RGBA64BE ||
1625  srcFormat == AV_PIX_FMT_BGRA64LE || srcFormat == AV_PIX_FMT_BGRA64BE) &&
1626  (dstFormat == AV_PIX_FMT_GBRP9LE || dstFormat == AV_PIX_FMT_GBRP9BE ||
1627  dstFormat == AV_PIX_FMT_GBRP10LE || dstFormat == AV_PIX_FMT_GBRP10BE ||
1628  dstFormat == AV_PIX_FMT_GBRP12LE || dstFormat == AV_PIX_FMT_GBRP12BE ||
1629  dstFormat == AV_PIX_FMT_GBRP14LE || dstFormat == AV_PIX_FMT_GBRP14BE ||
1630  dstFormat == AV_PIX_FMT_GBRP16LE || dstFormat == AV_PIX_FMT_GBRP16BE ||
1631  dstFormat == AV_PIX_FMT_GBRAP16LE || dstFormat == AV_PIX_FMT_GBRAP16BE ))
1632  c->swscale = Rgb16ToPlanarRgb16Wrapper;
1633 
1634  if ((srcFormat == AV_PIX_FMT_GBRP9LE || srcFormat == AV_PIX_FMT_GBRP9BE ||
1635  srcFormat == AV_PIX_FMT_GBRP16LE || srcFormat == AV_PIX_FMT_GBRP16BE ||
1636  srcFormat == AV_PIX_FMT_GBRP10LE || srcFormat == AV_PIX_FMT_GBRP10BE ||
1637  srcFormat == AV_PIX_FMT_GBRP12LE || srcFormat == AV_PIX_FMT_GBRP12BE ||
1638  srcFormat == AV_PIX_FMT_GBRP14LE || srcFormat == AV_PIX_FMT_GBRP14BE ||
1639  srcFormat == AV_PIX_FMT_GBRAP16LE || srcFormat == AV_PIX_FMT_GBRAP16BE) &&
1640  (dstFormat == AV_PIX_FMT_RGB48LE || dstFormat == AV_PIX_FMT_RGB48BE ||
1641  dstFormat == AV_PIX_FMT_BGR48LE || dstFormat == AV_PIX_FMT_BGR48BE ||
1642  dstFormat == AV_PIX_FMT_RGBA64LE || dstFormat == AV_PIX_FMT_RGBA64BE ||
1643  dstFormat == AV_PIX_FMT_BGRA64LE || dstFormat == AV_PIX_FMT_BGRA64BE))
1644  c->swscale = planarRgb16ToRgb16Wrapper;
1645 
1646  if (av_pix_fmt_desc_get(srcFormat)->comp[0].depth_minus1 == 7 &&
1647  isPackedRGB(srcFormat) && dstFormat == AV_PIX_FMT_GBRP)
1648  c->swscale = rgbToPlanarRgbWrapper;
1649 
1650  if (isBayer(srcFormat)) {
1651  if (dstFormat == AV_PIX_FMT_RGB24)
1652  c->swscale = bayer_to_rgb24_wrapper;
1653  else if (dstFormat == AV_PIX_FMT_YUV420P)
1654  c->swscale = bayer_to_yv12_wrapper;
1655  else if (!isBayer(dstFormat)) {
1656  av_log(c, AV_LOG_ERROR, "unsupported bayer conversion\n");
1657  av_assert0(0);
1658  }
1659  }
1660 
1661  /* bswap 16 bits per pixel/component packed formats */
1662  if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_BGGR16) ||
1663  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_RGGB16) ||
1664  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GBRG16) ||
1665  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GRBG16) ||
1666  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR444) ||
1667  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR48) ||
1668  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGRA64) ||
1669  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR555) ||
1670  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR565) ||
1671  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGRA64) ||
1672  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY16) ||
1673  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YA16) ||
1674  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP9) ||
1675  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP10) ||
1676  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP12) ||
1677  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP14) ||
1678  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP16) ||
1679  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP16) ||
1680  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB444) ||
1681  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB48) ||
1682  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
1683  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB555) ||
1684  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB565) ||
1685  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
1686  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_XYZ12) ||
1687  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P9) ||
1688  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P10) ||
1689  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P12) ||
1690  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P14) ||
1691  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P16) ||
1692  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P9) ||
1693  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P10) ||
1694  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P12) ||
1695  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P14) ||
1696  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P16) ||
1697  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P9) ||
1698  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P10) ||
1699  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P12) ||
1700  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P14) ||
1701  IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P16))
1702  c->swscale = packed_16bpc_bswap;
1703 
1704  if (usePal(srcFormat) && isByteRGB(dstFormat))
1705  c->swscale = palToRgbWrapper;
1706 
1707  if (srcFormat == AV_PIX_FMT_YUV422P) {
1708  if (dstFormat == AV_PIX_FMT_YUYV422)
1709  c->swscale = yuv422pToYuy2Wrapper;
1710  else if (dstFormat == AV_PIX_FMT_UYVY422)
1711  c->swscale = yuv422pToUyvyWrapper;
1712  }
1713 
1714  /* LQ converters if -sws 0 or -sws 4*/
1715  if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
1716  /* yv12_to_yuy2 */
1717  if (srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) {
1718  if (dstFormat == AV_PIX_FMT_YUYV422)
1719  c->swscale = planarToYuy2Wrapper;
1720  else if (dstFormat == AV_PIX_FMT_UYVY422)
1721  c->swscale = planarToUyvyWrapper;
1722  }
1723  }
1724  if (srcFormat == AV_PIX_FMT_YUYV422 &&
1725  (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
1726  c->swscale = yuyvToYuv420Wrapper;
1727  if (srcFormat == AV_PIX_FMT_UYVY422 &&
1728  (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
1729  c->swscale = uyvyToYuv420Wrapper;
1730  if (srcFormat == AV_PIX_FMT_YUYV422 && dstFormat == AV_PIX_FMT_YUV422P)
1731  c->swscale = yuyvToYuv422Wrapper;
1732  if (srcFormat == AV_PIX_FMT_UYVY422 && dstFormat == AV_PIX_FMT_YUV422P)
1733  c->swscale = uyvyToYuv422Wrapper;
1734 
1735 #define isPlanarGray(x) (isGray(x) && (x) != AV_PIX_FMT_YA8 && (x) != AV_PIX_FMT_YA16LE && (x) != AV_PIX_FMT_YA16BE)
1736  /* simple copy */
1737  if ( srcFormat == dstFormat ||
1738  (srcFormat == AV_PIX_FMT_YUVA420P && dstFormat == AV_PIX_FMT_YUV420P) ||
1739  (srcFormat == AV_PIX_FMT_YUV420P && dstFormat == AV_PIX_FMT_YUVA420P) ||
1740  (isPlanarYUV(srcFormat) && isPlanarGray(dstFormat)) ||
1741  (isPlanarYUV(dstFormat) && isPlanarGray(srcFormat)) ||
1742  (isPlanarGray(dstFormat) && isPlanarGray(srcFormat)) ||
1743  (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) &&
1744  c->chrDstHSubSample == c->chrSrcHSubSample &&
1745  c->chrDstVSubSample == c->chrSrcVSubSample &&
1746  dstFormat != AV_PIX_FMT_NV12 && dstFormat != AV_PIX_FMT_NV21 &&
1747  srcFormat != AV_PIX_FMT_NV12 && srcFormat != AV_PIX_FMT_NV21))
1748  {
1749  if (isPacked(c->srcFormat))
1750  c->swscale = packedCopyWrapper;
1751  else /* Planar YUV or gray */
1752  c->swscale = planarCopyWrapper;
1753  }
1754 
1755  if (ARCH_PPC)
1756  ff_get_unscaled_swscale_ppc(c);
1757 // if (ARCH_ARM)
1758 // ff_get_unscaled_swscale_arm(c);
1759 }
1760 
1761 /* Convert the palette to the same packed 32-bit format as the palette */
1762 void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst,
1763  int num_pixels, const uint8_t *palette)
1764 {
1765  int i;
1766 
1767  for (i = 0; i < num_pixels; i++)
1768  ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
1769 }
1770 
1771 /* Palette format: ABCD -> dst format: ABC */
1772 void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst,
1773  int num_pixels, const uint8_t *palette)
1774 {
1775  int i;
1776 
1777  for (i = 0; i < num_pixels; i++) {
1778  //FIXME slow?
1779  dst[0] = palette[src[i] * 4 + 0];
1780  dst[1] = palette[src[i] * 4 + 1];
1781  dst[2] = palette[src[i] * 4 + 2];
1782  dst += 3;
1783  }
1784 }
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