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/mem_internal.h"
34 #include "libavutil/bswap.h"
35 #include "libavutil/pixdesc.h"
36 #include "libavutil/avassert.h"
37 #include "libavutil/avconfig.h"
38
39 DECLARE_ALIGNED(8, static const uint8_t, dithers)[8][8][8]={
40 {
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 { 0, 1, 0, 1, 0, 1, 0, 1,},
48 { 1, 0, 1, 0, 1, 0, 1, 0,},
49 },{
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 { 1, 2, 1, 2, 1, 2, 1, 2,},
57 { 3, 0, 3, 0, 3, 0, 3, 0,},
58 },{
59 { 2, 4, 3, 5, 2, 4, 3, 5,},
60 { 6, 0, 7, 1, 6, 0, 7, 1,},
61 { 3, 5, 2, 4, 3, 5, 2, 4,},
62 { 7, 1, 6, 0, 7, 1, 6, 0,},
63 { 2, 4, 3, 5, 2, 4, 3, 5,},
64 { 6, 0, 7, 1, 6, 0, 7, 1,},
65 { 3, 5, 2, 4, 3, 5, 2, 4,},
66 { 7, 1, 6, 0, 7, 1, 6, 0,},
67 },{
68 { 4, 8, 7, 11, 4, 8, 7, 11,},
69 { 12, 0, 15, 3, 12, 0, 15, 3,},
70 { 6, 10, 5, 9, 6, 10, 5, 9,},
71 { 14, 2, 13, 1, 14, 2, 13, 1,},
72 { 4, 8, 7, 11, 4, 8, 7, 11,},
73 { 12, 0, 15, 3, 12, 0, 15, 3,},
74 { 6, 10, 5, 9, 6, 10, 5, 9,},
75 { 14, 2, 13, 1, 14, 2, 13, 1,},
76 },{
77 { 9, 17, 15, 23, 8, 16, 14, 22,},
78 { 25, 1, 31, 7, 24, 0, 30, 6,},
79 { 13, 21, 11, 19, 12, 20, 10, 18,},
80 { 29, 5, 27, 3, 28, 4, 26, 2,},
81 { 8, 16, 14, 22, 9, 17, 15, 23,},
82 { 24, 0, 30, 6, 25, 1, 31, 7,},
83 { 12, 20, 10, 18, 13, 21, 11, 19,},
84 { 28, 4, 26, 2, 29, 5, 27, 3,},
85 },{
86 { 18, 34, 30, 46, 17, 33, 29, 45,},
87 { 50, 2, 62, 14, 49, 1, 61, 13,},
88 { 26, 42, 22, 38, 25, 41, 21, 37,},
89 { 58, 10, 54, 6, 57, 9, 53, 5,},
90 { 16, 32, 28, 44, 19, 35, 31, 47,},
91 { 48, 0, 60, 12, 51, 3, 63, 15,},
92 { 24, 40, 20, 36, 27, 43, 23, 39,},
93 { 56, 8, 52, 4, 59, 11, 55, 7,},
94 },{
95 { 18, 34, 30, 46, 17, 33, 29, 45,},
96 { 50, 2, 62, 14, 49, 1, 61, 13,},
97 { 26, 42, 22, 38, 25, 41, 21, 37,},
98 { 58, 10, 54, 6, 57, 9, 53, 5,},
99 { 16, 32, 28, 44, 19, 35, 31, 47,},
100 { 48, 0, 60, 12, 51, 3, 63, 15,},
101 { 24, 40, 20, 36, 27, 43, 23, 39,},
102 { 56, 8, 52, 4, 59, 11, 55, 7,},
103 },{
104 { 36, 68, 60, 92, 34, 66, 58, 90,},
105 { 100, 4,124, 28, 98, 2,122, 26,},
106 { 52, 84, 44, 76, 50, 82, 42, 74,},
107 { 116, 20,108, 12,114, 18,106, 10,},
108 { 32, 64, 56, 88, 38, 70, 62, 94,},
109 { 96, 0,120, 24,102, 6,126, 30,},
110 { 48, 80, 40, 72, 54, 86, 46, 78,},
111 { 112, 16,104, 8,118, 22,110, 14,},
112 }};
113
114
fillPlane(uint8_t * plane,int stride,int width,int height,int y,uint8_t val)115 static void fillPlane(uint8_t *plane, int stride, int width, int height, int y,
116 uint8_t val)
117 {
118 int i;
119 uint8_t *ptr = plane + stride * y;
120 for (i = 0; i < height; i++) {
121 memset(ptr, val, width);
122 ptr += stride;
123 }
124 }
125
copyPlane(const uint8_t * src,int srcStride,int srcSliceY,int srcSliceH,int width,uint8_t * dst,int dstStride)126 static void copyPlane(const uint8_t *src, int srcStride,
127 int srcSliceY, int srcSliceH, int width,
128 uint8_t *dst, int dstStride)
129 {
130 dst += dstStride * srcSliceY;
131 if (dstStride == srcStride && srcStride > 0) {
132 memcpy(dst, src, srcSliceH * dstStride);
133 } else {
134 int i;
135 for (i = 0; i < srcSliceH; i++) {
136 memcpy(dst, src, width);
137 src += srcStride;
138 dst += dstStride;
139 }
140 }
141 }
142
planarToNv12Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])143 static int planarToNv12Wrapper(SwsContext *c, const uint8_t *src[],
144 int srcStride[], int srcSliceY,
145 int srcSliceH, uint8_t *dstParam[],
146 int dstStride[])
147 {
148 uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY / 2;
149
150 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
151 dstParam[0], dstStride[0]);
152
153 if (c->dstFormat == AV_PIX_FMT_NV12)
154 interleaveBytes(src[1], src[2], dst, c->chrSrcW, (srcSliceH + 1) / 2,
155 srcStride[1], srcStride[2], dstStride[1]);
156 else
157 interleaveBytes(src[2], src[1], dst, c->chrSrcW, (srcSliceH + 1) / 2,
158 srcStride[2], srcStride[1], dstStride[1]);
159
160 return srcSliceH;
161 }
162
nv12ToPlanarWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])163 static int nv12ToPlanarWrapper(SwsContext *c, const uint8_t *src[],
164 int srcStride[], int srcSliceY,
165 int srcSliceH, uint8_t *dstParam[],
166 int dstStride[])
167 {
168 uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY / 2;
169 uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY / 2;
170
171 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
172 dstParam[0], dstStride[0]);
173
174 if (c->srcFormat == AV_PIX_FMT_NV12)
175 deinterleaveBytes(src[1], dst1, dst2, c->chrSrcW, (srcSliceH + 1) / 2,
176 srcStride[1], dstStride[1], dstStride[2]);
177 else
178 deinterleaveBytes(src[1], dst2, dst1, c->chrSrcW, (srcSliceH + 1) / 2,
179 srcStride[1], dstStride[2], dstStride[1]);
180
181 return srcSliceH;
182 }
183
planarToNv24Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])184 static int planarToNv24Wrapper(SwsContext *c, const uint8_t *src[],
185 int srcStride[], int srcSliceY,
186 int srcSliceH, uint8_t *dstParam[],
187 int dstStride[])
188 {
189 uint8_t *dst = dstParam[1] + dstStride[1] * srcSliceY;
190
191 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
192 dstParam[0], dstStride[0]);
193
194 if (c->dstFormat == AV_PIX_FMT_NV24)
195 interleaveBytes(src[1], src[2], dst, c->chrSrcW, srcSliceH,
196 srcStride[1], srcStride[2], dstStride[1]);
197 else
198 interleaveBytes(src[2], src[1], dst, c->chrSrcW, srcSliceH,
199 srcStride[2], srcStride[1], dstStride[1]);
200
201 return srcSliceH;
202 }
203
nv24ToPlanarWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])204 static int nv24ToPlanarWrapper(SwsContext *c, const uint8_t *src[],
205 int srcStride[], int srcSliceY,
206 int srcSliceH, uint8_t *dstParam[],
207 int dstStride[])
208 {
209 uint8_t *dst1 = dstParam[1] + dstStride[1] * srcSliceY;
210 uint8_t *dst2 = dstParam[2] + dstStride[2] * srcSliceY;
211
212 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
213 dstParam[0], dstStride[0]);
214
215 if (c->srcFormat == AV_PIX_FMT_NV24)
216 deinterleaveBytes(src[1], dst1, dst2, c->chrSrcW, srcSliceH,
217 srcStride[1], dstStride[1], dstStride[2]);
218 else
219 deinterleaveBytes(src[1], dst2, dst1, c->chrSrcW, srcSliceH,
220 srcStride[1], dstStride[2], dstStride[1]);
221
222 return srcSliceH;
223 }
224
planarToP01xWrapper(SwsContext * c,const uint8_t * src8[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam8[],int dstStride[])225 static int planarToP01xWrapper(SwsContext *c, const uint8_t *src8[],
226 int srcStride[], int srcSliceY,
227 int srcSliceH, uint8_t *dstParam8[],
228 int dstStride[])
229 {
230 const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
231 const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
232 const uint16_t **src = (const uint16_t**)src8;
233 uint16_t *dstY = (uint16_t*)(dstParam8[0] + dstStride[0] * srcSliceY);
234 uint16_t *dstUV = (uint16_t*)(dstParam8[1] + dstStride[1] * srcSliceY / 2);
235 int x, y;
236
237 /* Calculate net shift required for values. */
238 const int shift[3] = {
239 dst_format->comp[0].depth + dst_format->comp[0].shift -
240 src_format->comp[0].depth - src_format->comp[0].shift,
241 dst_format->comp[1].depth + dst_format->comp[1].shift -
242 src_format->comp[1].depth - src_format->comp[1].shift,
243 dst_format->comp[2].depth + dst_format->comp[2].shift -
244 src_format->comp[2].depth - src_format->comp[2].shift,
245 };
246
247 av_assert0(!(srcStride[0] % 2 || srcStride[1] % 2 || srcStride[2] % 2 ||
248 dstStride[0] % 2 || dstStride[1] % 2));
249
250 for (y = 0; y < srcSliceH; y++) {
251 uint16_t *tdstY = dstY;
252 const uint16_t *tsrc0 = src[0];
253 for (x = c->srcW; x > 0; x--) {
254 *tdstY++ = *tsrc0++ << shift[0];
255 }
256 src[0] += srcStride[0] / 2;
257 dstY += dstStride[0] / 2;
258
259 if (!(y & 1)) {
260 uint16_t *tdstUV = dstUV;
261 const uint16_t *tsrc1 = src[1];
262 const uint16_t *tsrc2 = src[2];
263 for (x = c->srcW / 2; x > 0; x--) {
264 *tdstUV++ = *tsrc1++ << shift[1];
265 *tdstUV++ = *tsrc2++ << shift[2];
266 }
267 src[1] += srcStride[1] / 2;
268 src[2] += srcStride[2] / 2;
269 dstUV += dstStride[1] / 2;
270 }
271 }
272
273 return srcSliceH;
274 }
275
276 #if AV_HAVE_BIGENDIAN
277 #define output_pixel(p, v) do { \
278 uint16_t *pp = (p); \
279 AV_WL16(pp, (v)); \
280 } while(0)
281 #else
282 #define output_pixel(p, v) (*p) = (v)
283 #endif
284
planar8ToP01xleWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam8[],int dstStride[])285 static int planar8ToP01xleWrapper(SwsContext *c, const uint8_t *src[],
286 int srcStride[], int srcSliceY,
287 int srcSliceH, uint8_t *dstParam8[],
288 int dstStride[])
289 {
290 uint16_t *dstY = (uint16_t*)(dstParam8[0] + dstStride[0] * srcSliceY);
291 uint16_t *dstUV = (uint16_t*)(dstParam8[1] + dstStride[1] * srcSliceY / 2);
292 int x, y, t;
293
294 av_assert0(!(dstStride[0] % 2 || dstStride[1] % 2));
295
296 for (y = 0; y < srcSliceH; y++) {
297 uint16_t *tdstY = dstY;
298 const uint8_t *tsrc0 = src[0];
299 for (x = c->srcW; x > 0; x--) {
300 t = *tsrc0++;
301 output_pixel(tdstY++, t | (t << 8));
302 }
303 src[0] += srcStride[0];
304 dstY += dstStride[0] / 2;
305
306 if (!(y & 1)) {
307 uint16_t *tdstUV = dstUV;
308 const uint8_t *tsrc1 = src[1];
309 const uint8_t *tsrc2 = src[2];
310 for (x = c->srcW / 2; x > 0; x--) {
311 t = *tsrc1++;
312 output_pixel(tdstUV++, t | (t << 8));
313 t = *tsrc2++;
314 output_pixel(tdstUV++, t | (t << 8));
315 }
316 src[1] += srcStride[1];
317 src[2] += srcStride[2];
318 dstUV += dstStride[1] / 2;
319 }
320 }
321
322 return srcSliceH;
323 }
324
325 #undef output_pixel
326
planarToYuy2Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])327 static int planarToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
328 int srcStride[], int srcSliceY, int srcSliceH,
329 uint8_t *dstParam[], int dstStride[])
330 {
331 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
332
333 yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
334 srcStride[1], dstStride[0]);
335
336 return srcSliceH;
337 }
338
planarToUyvyWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])339 static int planarToUyvyWrapper(SwsContext *c, const uint8_t *src[],
340 int srcStride[], int srcSliceY, int srcSliceH,
341 uint8_t *dstParam[], int dstStride[])
342 {
343 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
344
345 yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
346 srcStride[1], dstStride[0]);
347
348 return srcSliceH;
349 }
350
yuv422pToYuy2Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])351 static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t *src[],
352 int srcStride[], int srcSliceY, int srcSliceH,
353 uint8_t *dstParam[], int dstStride[])
354 {
355 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
356
357 yuv422ptoyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
358 srcStride[1], dstStride[0]);
359
360 return srcSliceH;
361 }
362
yuv422pToUyvyWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])363 static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t *src[],
364 int srcStride[], int srcSliceY, int srcSliceH,
365 uint8_t *dstParam[], int dstStride[])
366 {
367 uint8_t *dst = dstParam[0] + dstStride[0] * srcSliceY;
368
369 yuv422ptouyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0],
370 srcStride[1], dstStride[0]);
371
372 return srcSliceH;
373 }
374
yuyvToYuv420Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])375 static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
376 int srcStride[], int srcSliceY, int srcSliceH,
377 uint8_t *dstParam[], int dstStride[])
378 {
379 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
380 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
381 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
382
383 yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
384 dstStride[1], srcStride[0]);
385
386 if (dstParam[3])
387 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
388
389 return srcSliceH;
390 }
391
yuyvToYuv422Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])392 static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
393 int srcStride[], int srcSliceY, int srcSliceH,
394 uint8_t *dstParam[], int dstStride[])
395 {
396 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
397 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
398 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
399
400 yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
401 dstStride[1], srcStride[0]);
402
403 return srcSliceH;
404 }
405
uyvyToYuv420Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])406 static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t *src[],
407 int srcStride[], int srcSliceY, int srcSliceH,
408 uint8_t *dstParam[], int dstStride[])
409 {
410 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
411 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY / 2;
412 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY / 2;
413
414 uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
415 dstStride[1], srcStride[0]);
416
417 if (dstParam[3])
418 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
419
420 return srcSliceH;
421 }
422
uyvyToYuv422Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dstParam[],int dstStride[])423 static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t *src[],
424 int srcStride[], int srcSliceY, int srcSliceH,
425 uint8_t *dstParam[], int dstStride[])
426 {
427 uint8_t *ydst = dstParam[0] + dstStride[0] * srcSliceY;
428 uint8_t *udst = dstParam[1] + dstStride[1] * srcSliceY;
429 uint8_t *vdst = dstParam[2] + dstStride[2] * srcSliceY;
430
431 uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0],
432 dstStride[1], srcStride[0]);
433
434 return srcSliceH;
435 }
436
gray8aToPacked32(const uint8_t * src,uint8_t * dst,int num_pixels,const uint8_t * palette)437 static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels,
438 const uint8_t *palette)
439 {
440 int i;
441 for (i = 0; i < num_pixels; i++)
442 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | (src[(i << 1) + 1] << 24);
443 }
444
gray8aToPacked32_1(const uint8_t * src,uint8_t * dst,int num_pixels,const uint8_t * palette)445 static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, int num_pixels,
446 const uint8_t *palette)
447 {
448 int i;
449
450 for (i = 0; i < num_pixels; i++)
451 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i << 1]] | src[(i << 1) + 1];
452 }
453
gray8aToPacked24(const uint8_t * src,uint8_t * dst,int num_pixels,const uint8_t * palette)454 static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, int num_pixels,
455 const uint8_t *palette)
456 {
457 int i;
458
459 for (i = 0; i < num_pixels; i++) {
460 //FIXME slow?
461 dst[0] = palette[src[i << 1] * 4 + 0];
462 dst[1] = palette[src[i << 1] * 4 + 1];
463 dst[2] = palette[src[i << 1] * 4 + 2];
464 dst += 3;
465 }
466 }
467
bswap_16bpc(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])468 static int bswap_16bpc(SwsContext *c, const uint8_t *src[],
469 int srcStride[], int srcSliceY, int srcSliceH,
470 uint8_t *dst[], int dstStride[])
471 {
472 int i, j, p;
473
474 for (p = 0; p < 4; p++) {
475 int srcstr = srcStride[p] / 2;
476 int dststr = dstStride[p] / 2;
477 uint16_t *dstPtr = (uint16_t *) dst[p];
478 const uint16_t *srcPtr = (const uint16_t *) src[p];
479 int min_stride = FFMIN(FFABS(srcstr), FFABS(dststr));
480 if(!dstPtr || !srcPtr)
481 continue;
482 dstPtr += (srcSliceY >> c->chrDstVSubSample) * dststr;
483 for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
484 for (j = 0; j < min_stride; j++) {
485 dstPtr[j] = av_bswap16(srcPtr[j]);
486 }
487 srcPtr += srcstr;
488 dstPtr += dststr;
489 }
490 }
491
492 return srcSliceH;
493 }
494
bswap_32bpc(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])495 static int bswap_32bpc(SwsContext *c, const uint8_t *src[],
496 int srcStride[], int srcSliceY, int srcSliceH,
497 uint8_t *dst[], int dstStride[])
498 {
499 int i, j, p;
500
501 for (p = 0; p < 4; p++) {
502 int srcstr = srcStride[p] / 4;
503 int dststr = dstStride[p] / 4;
504 uint32_t *dstPtr = (uint32_t *) dst[p];
505 const uint32_t *srcPtr = (const uint32_t *) src[p];
506 int min_stride = FFMIN(FFABS(srcstr), FFABS(dststr));
507 if(!dstPtr || !srcPtr)
508 continue;
509 dstPtr += (srcSliceY >> c->chrDstVSubSample) * dststr;
510 for (i = 0; i < (srcSliceH >> c->chrDstVSubSample); i++) {
511 for (j = 0; j < min_stride; j++) {
512 dstPtr[j] = av_bswap32(srcPtr[j]);
513 }
514 srcPtr += srcstr;
515 dstPtr += dststr;
516 }
517 }
518
519 return srcSliceH;
520 }
521
522
palToRgbWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])523 static int palToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
524 int srcSliceY, int srcSliceH, uint8_t *dst[],
525 int dstStride[])
526 {
527 const enum AVPixelFormat srcFormat = c->srcFormat;
528 const enum AVPixelFormat dstFormat = c->dstFormat;
529 void (*conv)(const uint8_t *src, uint8_t *dst, int num_pixels,
530 const uint8_t *palette) = NULL;
531 int i;
532 uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
533 const uint8_t *srcPtr = src[0];
534
535 if (srcFormat == AV_PIX_FMT_YA8) {
536 switch (dstFormat) {
537 case AV_PIX_FMT_RGB32 : conv = gray8aToPacked32; break;
538 case AV_PIX_FMT_BGR32 : conv = gray8aToPacked32; break;
539 case AV_PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
540 case AV_PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
541 case AV_PIX_FMT_RGB24 : conv = gray8aToPacked24; break;
542 case AV_PIX_FMT_BGR24 : conv = gray8aToPacked24; break;
543 }
544 } else if (usePal(srcFormat)) {
545 switch (dstFormat) {
546 case AV_PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
547 case AV_PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
548 case AV_PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
549 case AV_PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
550 case AV_PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
551 case AV_PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
552 }
553 }
554
555 if (!conv)
556 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
557 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
558 else {
559 for (i = 0; i < srcSliceH; i++) {
560 conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
561 srcPtr += srcStride[0];
562 dstPtr += dstStride[0];
563 }
564 }
565
566 return srcSliceH;
567 }
568
packed16togbra16(const uint8_t * src,int srcStride,uint16_t * dst[],int dstStride[],int srcSliceH,int src_alpha,int swap,int shift,int width)569 static void packed16togbra16(const uint8_t *src, int srcStride,
570 uint16_t *dst[], int dstStride[], int srcSliceH,
571 int src_alpha, int swap, int shift, int width)
572 {
573 int x, h, i;
574 int dst_alpha = dst[3] != NULL;
575 for (h = 0; h < srcSliceH; h++) {
576 uint16_t *src_line = (uint16_t *)(src + srcStride * h);
577 switch (swap) {
578 case 3:
579 if (src_alpha && dst_alpha) {
580 for (x = 0; x < width; x++) {
581 dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
582 dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
583 dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
584 dst[3][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
585 }
586 } else if (dst_alpha) {
587 for (x = 0; x < width; x++) {
588 dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
589 dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
590 dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
591 dst[3][x] = 0xFFFF;
592 }
593 } else if (src_alpha) {
594 for (x = 0; x < width; x++) {
595 dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
596 dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
597 dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
598 src_line++;
599 }
600 } else {
601 for (x = 0; x < width; x++) {
602 dst[0][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
603 dst[1][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
604 dst[2][x] = av_bswap16(av_bswap16(*src_line++) >> shift);
605 }
606 }
607 break;
608 case 2:
609 if (src_alpha && dst_alpha) {
610 for (x = 0; x < width; x++) {
611 dst[0][x] = av_bswap16(*src_line++ >> shift);
612 dst[1][x] = av_bswap16(*src_line++ >> shift);
613 dst[2][x] = av_bswap16(*src_line++ >> shift);
614 dst[3][x] = av_bswap16(*src_line++ >> shift);
615 }
616 } else if (dst_alpha) {
617 for (x = 0; x < width; x++) {
618 dst[0][x] = av_bswap16(*src_line++ >> shift);
619 dst[1][x] = av_bswap16(*src_line++ >> shift);
620 dst[2][x] = av_bswap16(*src_line++ >> shift);
621 dst[3][x] = 0xFFFF;
622 }
623 } else if (src_alpha) {
624 for (x = 0; x < width; x++) {
625 dst[0][x] = av_bswap16(*src_line++ >> shift);
626 dst[1][x] = av_bswap16(*src_line++ >> shift);
627 dst[2][x] = av_bswap16(*src_line++ >> shift);
628 src_line++;
629 }
630 } else {
631 for (x = 0; x < width; x++) {
632 dst[0][x] = av_bswap16(*src_line++ >> shift);
633 dst[1][x] = av_bswap16(*src_line++ >> shift);
634 dst[2][x] = av_bswap16(*src_line++ >> shift);
635 }
636 }
637 break;
638 case 1:
639 if (src_alpha && dst_alpha) {
640 for (x = 0; x < width; x++) {
641 dst[0][x] = av_bswap16(*src_line++) >> shift;
642 dst[1][x] = av_bswap16(*src_line++) >> shift;
643 dst[2][x] = av_bswap16(*src_line++) >> shift;
644 dst[3][x] = av_bswap16(*src_line++) >> shift;
645 }
646 } else if (dst_alpha) {
647 for (x = 0; x < width; x++) {
648 dst[0][x] = av_bswap16(*src_line++) >> shift;
649 dst[1][x] = av_bswap16(*src_line++) >> shift;
650 dst[2][x] = av_bswap16(*src_line++) >> shift;
651 dst[3][x] = 0xFFFF;
652 }
653 } else if (src_alpha) {
654 for (x = 0; x < width; x++) {
655 dst[0][x] = av_bswap16(*src_line++) >> shift;
656 dst[1][x] = av_bswap16(*src_line++) >> shift;
657 dst[2][x] = av_bswap16(*src_line++) >> shift;
658 src_line++;
659 }
660 } else {
661 for (x = 0; x < width; x++) {
662 dst[0][x] = av_bswap16(*src_line++) >> shift;
663 dst[1][x] = av_bswap16(*src_line++) >> shift;
664 dst[2][x] = av_bswap16(*src_line++) >> shift;
665 }
666 }
667 break;
668 default:
669 if (src_alpha && dst_alpha) {
670 for (x = 0; x < width; x++) {
671 dst[0][x] = *src_line++ >> shift;
672 dst[1][x] = *src_line++ >> shift;
673 dst[2][x] = *src_line++ >> shift;
674 dst[3][x] = *src_line++ >> shift;
675 }
676 } else if (dst_alpha) {
677 for (x = 0; x < width; x++) {
678 dst[0][x] = *src_line++ >> shift;
679 dst[1][x] = *src_line++ >> shift;
680 dst[2][x] = *src_line++ >> shift;
681 dst[3][x] = 0xFFFF;
682 }
683 } else if (src_alpha) {
684 for (x = 0; x < width; x++) {
685 dst[0][x] = *src_line++ >> shift;
686 dst[1][x] = *src_line++ >> shift;
687 dst[2][x] = *src_line++ >> shift;
688 src_line++;
689 }
690 } else {
691 for (x = 0; x < width; x++) {
692 dst[0][x] = *src_line++ >> shift;
693 dst[1][x] = *src_line++ >> shift;
694 dst[2][x] = *src_line++ >> shift;
695 }
696 }
697 }
698 for (i = 0; i < 4; i++)
699 dst[i] += dstStride[i] >> 1;
700 }
701 }
702
Rgb16ToPlanarRgb16Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])703 static int Rgb16ToPlanarRgb16Wrapper(SwsContext *c, const uint8_t *src[],
704 int srcStride[], int srcSliceY, int srcSliceH,
705 uint8_t *dst[], int dstStride[])
706 {
707 uint16_t *dst2013[] = { (uint16_t *)dst[2], (uint16_t *)dst[0], (uint16_t *)dst[1], (uint16_t *)dst[3] };
708 uint16_t *dst1023[] = { (uint16_t *)dst[1], (uint16_t *)dst[0], (uint16_t *)dst[2], (uint16_t *)dst[3] };
709 int stride2013[] = { dstStride[2], dstStride[0], dstStride[1], dstStride[3] };
710 int stride1023[] = { dstStride[1], dstStride[0], dstStride[2], dstStride[3] };
711 const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
712 const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
713 int bpc = dst_format->comp[0].depth;
714 int alpha = src_format->flags & AV_PIX_FMT_FLAG_ALPHA;
715 int swap = 0;
716 int i;
717
718 if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
719 !HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
720 swap++;
721 if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
722 !HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
723 swap += 2;
724
725 if ((dst_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
726 (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) || bpc < 9) {
727 av_log(c, AV_LOG_ERROR, "unsupported conversion to planar RGB %s -> %s\n",
728 src_format->name, dst_format->name);
729 return srcSliceH;
730 }
731
732 for(i=0; i<4; i++) {
733 dst2013[i] += stride2013[i] * srcSliceY / 2;
734 dst1023[i] += stride1023[i] * srcSliceY / 2;
735 }
736
737 switch (c->srcFormat) {
738 case AV_PIX_FMT_RGB48LE:
739 case AV_PIX_FMT_RGB48BE:
740 case AV_PIX_FMT_RGBA64LE:
741 case AV_PIX_FMT_RGBA64BE:
742 packed16togbra16(src[0], srcStride[0],
743 dst2013, stride2013, srcSliceH, alpha, swap,
744 16 - bpc, c->srcW);
745 break;
746 case AV_PIX_FMT_BGR48LE:
747 case AV_PIX_FMT_BGR48BE:
748 case AV_PIX_FMT_BGRA64LE:
749 case AV_PIX_FMT_BGRA64BE:
750 packed16togbra16(src[0], srcStride[0],
751 dst1023, stride1023, srcSliceH, alpha, swap,
752 16 - bpc, c->srcW);
753 break;
754 default:
755 av_log(c, AV_LOG_ERROR,
756 "unsupported conversion to planar RGB %s -> %s\n",
757 src_format->name, dst_format->name);
758 }
759
760 return srcSliceH;
761 }
762
gbr16ptopacked16(const uint16_t * src[],int srcStride[],uint8_t * dst,int dstStride,int srcSliceH,int alpha,int swap,int bpp,int width)763 static void gbr16ptopacked16(const uint16_t *src[], int srcStride[],
764 uint8_t *dst, int dstStride, int srcSliceH,
765 int alpha, int swap, int bpp, int width)
766 {
767 int x, h, i;
768 int src_alpha = src[3] != NULL;
769 int scale_high = 16 - bpp, scale_low = (bpp - 8) * 2;
770 for (h = 0; h < srcSliceH; h++) {
771 uint16_t *dest = (uint16_t *)(dst + dstStride * h);
772 uint16_t component;
773
774 switch(swap) {
775 case 3:
776 if (alpha && !src_alpha) {
777 for (x = 0; x < width; x++) {
778 component = av_bswap16(src[0][x]);
779 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
780 component = av_bswap16(src[1][x]);
781 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
782 component = av_bswap16(src[2][x]);
783 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
784 *dest++ = 0xffff;
785 }
786 } else if (alpha && src_alpha) {
787 for (x = 0; x < width; x++) {
788 component = av_bswap16(src[0][x]);
789 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
790 component = av_bswap16(src[1][x]);
791 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
792 component = av_bswap16(src[2][x]);
793 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
794 component = av_bswap16(src[3][x]);
795 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
796 }
797 } else {
798 for (x = 0; x < width; x++) {
799 component = av_bswap16(src[0][x]);
800 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
801 component = av_bswap16(src[1][x]);
802 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
803 component = av_bswap16(src[2][x]);
804 *dest++ = av_bswap16(component << scale_high | component >> scale_low);
805 }
806 }
807 break;
808 case 2:
809 if (alpha && !src_alpha) {
810 for (x = 0; x < width; x++) {
811 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
812 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
813 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
814 *dest++ = 0xffff;
815 }
816 } else if (alpha && src_alpha) {
817 for (x = 0; x < width; x++) {
818 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
819 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
820 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
821 *dest++ = av_bswap16(src[3][x] << scale_high | src[3][x] >> scale_low);
822 }
823 } else {
824 for (x = 0; x < width; x++) {
825 *dest++ = av_bswap16(src[0][x] << scale_high | src[0][x] >> scale_low);
826 *dest++ = av_bswap16(src[1][x] << scale_high | src[1][x] >> scale_low);
827 *dest++ = av_bswap16(src[2][x] << scale_high | src[2][x] >> scale_low);
828 }
829 }
830 break;
831 case 1:
832 if (alpha && !src_alpha) {
833 for (x = 0; x < width; x++) {
834 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
835 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
836 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
837 *dest++ = 0xffff;
838 }
839 } else if (alpha && src_alpha) {
840 for (x = 0; x < width; x++) {
841 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
842 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
843 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
844 *dest++ = av_bswap16(src[3][x]) << scale_high | av_bswap16(src[3][x]) >> scale_low;
845 }
846 } else {
847 for (x = 0; x < width; x++) {
848 *dest++ = av_bswap16(src[0][x]) << scale_high | av_bswap16(src[0][x]) >> scale_low;
849 *dest++ = av_bswap16(src[1][x]) << scale_high | av_bswap16(src[1][x]) >> scale_low;
850 *dest++ = av_bswap16(src[2][x]) << scale_high | av_bswap16(src[2][x]) >> scale_low;
851 }
852 }
853 break;
854 default:
855 if (alpha && !src_alpha) {
856 for (x = 0; x < width; x++) {
857 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
858 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
859 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
860 *dest++ = 0xffff;
861 }
862 } else if (alpha && src_alpha) {
863 for (x = 0; x < width; x++) {
864 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
865 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
866 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
867 *dest++ = src[3][x] << scale_high | src[3][x] >> scale_low;
868 }
869 } else {
870 for (x = 0; x < width; x++) {
871 *dest++ = src[0][x] << scale_high | src[0][x] >> scale_low;
872 *dest++ = src[1][x] << scale_high | src[1][x] >> scale_low;
873 *dest++ = src[2][x] << scale_high | src[2][x] >> scale_low;
874 }
875 }
876 }
877 for (i = 0; i < 3 + src_alpha; i++)
878 src[i] += srcStride[i] >> 1;
879 }
880 }
881
planarRgb16ToRgb16Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])882 static int planarRgb16ToRgb16Wrapper(SwsContext *c, const uint8_t *src[],
883 int srcStride[], int srcSliceY, int srcSliceH,
884 uint8_t *dst[], int dstStride[])
885 {
886 const uint16_t *src102[] = { (uint16_t *)src[1], (uint16_t *)src[0], (uint16_t *)src[2], (uint16_t *)src[3] };
887 const uint16_t *src201[] = { (uint16_t *)src[2], (uint16_t *)src[0], (uint16_t *)src[1], (uint16_t *)src[3] };
888 int stride102[] = { srcStride[1], srcStride[0], srcStride[2], srcStride[3] };
889 int stride201[] = { srcStride[2], srcStride[0], srcStride[1], srcStride[3] };
890 const AVPixFmtDescriptor *src_format = av_pix_fmt_desc_get(c->srcFormat);
891 const AVPixFmtDescriptor *dst_format = av_pix_fmt_desc_get(c->dstFormat);
892 int bits_per_sample = src_format->comp[0].depth;
893 int swap = 0;
894 if ( HAVE_BIGENDIAN && !(src_format->flags & AV_PIX_FMT_FLAG_BE) ||
895 !HAVE_BIGENDIAN && src_format->flags & AV_PIX_FMT_FLAG_BE)
896 swap++;
897 if ( HAVE_BIGENDIAN && !(dst_format->flags & AV_PIX_FMT_FLAG_BE) ||
898 !HAVE_BIGENDIAN && dst_format->flags & AV_PIX_FMT_FLAG_BE)
899 swap += 2;
900
901 if ((src_format->flags & (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB)) !=
902 (AV_PIX_FMT_FLAG_PLANAR | AV_PIX_FMT_FLAG_RGB) ||
903 bits_per_sample <= 8) {
904 av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
905 src_format->name, dst_format->name);
906 return srcSliceH;
907 }
908 switch (c->dstFormat) {
909 case AV_PIX_FMT_BGR48LE:
910 case AV_PIX_FMT_BGR48BE:
911 gbr16ptopacked16(src102, stride102,
912 dst[0] + srcSliceY * dstStride[0], dstStride[0],
913 srcSliceH, 0, swap, bits_per_sample, c->srcW);
914 break;
915 case AV_PIX_FMT_RGB48LE:
916 case AV_PIX_FMT_RGB48BE:
917 gbr16ptopacked16(src201, stride201,
918 dst[0] + srcSliceY * dstStride[0], dstStride[0],
919 srcSliceH, 0, swap, bits_per_sample, c->srcW);
920 break;
921 case AV_PIX_FMT_RGBA64LE:
922 case AV_PIX_FMT_RGBA64BE:
923 gbr16ptopacked16(src201, stride201,
924 dst[0] + srcSliceY * dstStride[0], dstStride[0],
925 srcSliceH, 1, swap, bits_per_sample, c->srcW);
926 break;
927 case AV_PIX_FMT_BGRA64LE:
928 case AV_PIX_FMT_BGRA64BE:
929 gbr16ptopacked16(src102, stride102,
930 dst[0] + srcSliceY * dstStride[0], dstStride[0],
931 srcSliceH, 1, swap, bits_per_sample, c->srcW);
932 break;
933 default:
934 av_log(c, AV_LOG_ERROR,
935 "unsupported planar RGB conversion %s -> %s\n",
936 src_format->name, dst_format->name);
937 }
938
939 return srcSliceH;
940 }
941
gbr24ptopacked24(const uint8_t * src[],int srcStride[],uint8_t * dst,int dstStride,int srcSliceH,int width)942 static void gbr24ptopacked24(const uint8_t *src[], int srcStride[],
943 uint8_t *dst, int dstStride, int srcSliceH,
944 int width)
945 {
946 int x, h, i;
947 for (h = 0; h < srcSliceH; h++) {
948 uint8_t *dest = dst + dstStride * h;
949 for (x = 0; x < width; x++) {
950 *dest++ = src[0][x];
951 *dest++ = src[1][x];
952 *dest++ = src[2][x];
953 }
954
955 for (i = 0; i < 3; i++)
956 src[i] += srcStride[i];
957 }
958 }
959
gbr24ptopacked32(const uint8_t * src[],int srcStride[],uint8_t * dst,int dstStride,int srcSliceH,int alpha_first,int width)960 static void gbr24ptopacked32(const uint8_t *src[], int srcStride[],
961 uint8_t *dst, int dstStride, int srcSliceH,
962 int alpha_first, int width)
963 {
964 int x, h, i;
965 for (h = 0; h < srcSliceH; h++) {
966 uint8_t *dest = dst + dstStride * h;
967
968 if (alpha_first) {
969 for (x = 0; x < width; x++) {
970 *dest++ = 0xff;
971 *dest++ = src[0][x];
972 *dest++ = src[1][x];
973 *dest++ = src[2][x];
974 }
975 } else {
976 for (x = 0; x < width; x++) {
977 *dest++ = src[0][x];
978 *dest++ = src[1][x];
979 *dest++ = src[2][x];
980 *dest++ = 0xff;
981 }
982 }
983
984 for (i = 0; i < 3; i++)
985 src[i] += srcStride[i];
986 }
987 }
988
gbraptopacked32(const uint8_t * src[],int srcStride[],uint8_t * dst,int dstStride,int srcSliceH,int alpha_first,int width)989 static void gbraptopacked32(const uint8_t *src[], int srcStride[],
990 uint8_t *dst, int dstStride, int srcSliceH,
991 int alpha_first, int width)
992 {
993 int x, h, i;
994 for (h = 0; h < srcSliceH; h++) {
995 uint8_t *dest = dst + dstStride * h;
996
997 if (alpha_first) {
998 for (x = 0; x < width; x++) {
999 *dest++ = src[3][x];
1000 *dest++ = src[0][x];
1001 *dest++ = src[1][x];
1002 *dest++ = src[2][x];
1003 }
1004 } else {
1005 for (x = 0; x < width; x++) {
1006 *dest++ = src[0][x];
1007 *dest++ = src[1][x];
1008 *dest++ = src[2][x];
1009 *dest++ = src[3][x];
1010 }
1011 }
1012
1013 for (i = 0; i < 4; i++)
1014 src[i] += srcStride[i];
1015 }
1016 }
1017
planarRgbaToRgbWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1018 static int planarRgbaToRgbWrapper(SwsContext *c, const uint8_t *src[],
1019 int srcStride[], int srcSliceY, int srcSliceH,
1020 uint8_t *dst[], int dstStride[])
1021 {
1022 int alpha_first = 0;
1023 const uint8_t *src102[] = { src[1], src[0], src[2], src[3] };
1024 const uint8_t *src201[] = { src[2], src[0], src[1], src[3] };
1025 int stride102[] = { srcStride[1], srcStride[0], srcStride[2], srcStride[3] };
1026 int stride201[] = { srcStride[2], srcStride[0], srcStride[1], srcStride[3] };
1027
1028 if (c->srcFormat != AV_PIX_FMT_GBRAP) {
1029 av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
1030 av_get_pix_fmt_name(c->srcFormat),
1031 av_get_pix_fmt_name(c->dstFormat));
1032 return srcSliceH;
1033 }
1034
1035 switch (c->dstFormat) {
1036 case AV_PIX_FMT_BGR24:
1037 gbr24ptopacked24(src102, stride102,
1038 dst[0] + srcSliceY * dstStride[0], dstStride[0],
1039 srcSliceH, c->srcW);
1040 break;
1041
1042 case AV_PIX_FMT_RGB24:
1043 gbr24ptopacked24(src201, stride201,
1044 dst[0] + srcSliceY * dstStride[0], dstStride[0],
1045 srcSliceH, c->srcW);
1046 break;
1047
1048 case AV_PIX_FMT_ARGB:
1049 alpha_first = 1;
1050 case AV_PIX_FMT_RGBA:
1051 gbraptopacked32(src201, stride201,
1052 dst[0] + srcSliceY * dstStride[0], dstStride[0],
1053 srcSliceH, alpha_first, c->srcW);
1054 break;
1055
1056 case AV_PIX_FMT_ABGR:
1057 alpha_first = 1;
1058 case AV_PIX_FMT_BGRA:
1059 gbraptopacked32(src102, stride102,
1060 dst[0] + srcSliceY * dstStride[0], dstStride[0],
1061 srcSliceH, alpha_first, c->srcW);
1062 break;
1063
1064 default:
1065 av_log(c, AV_LOG_ERROR,
1066 "unsupported planar RGB conversion %s -> %s\n",
1067 av_get_pix_fmt_name(c->srcFormat),
1068 av_get_pix_fmt_name(c->dstFormat));
1069 }
1070
1071 return srcSliceH;
1072 }
1073
planarRgbToRgbWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1074 static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t *src[],
1075 int srcStride[], int srcSliceY, int srcSliceH,
1076 uint8_t *dst[], int dstStride[])
1077 {
1078 int alpha_first = 0;
1079 const uint8_t *src102[] = { src[1], src[0], src[2] };
1080 const uint8_t *src201[] = { src[2], src[0], src[1] };
1081 int stride102[] = { srcStride[1], srcStride[0], srcStride[2] };
1082 int stride201[] = { srcStride[2], srcStride[0], srcStride[1] };
1083
1084 if (c->srcFormat != AV_PIX_FMT_GBRP) {
1085 av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n",
1086 av_get_pix_fmt_name(c->srcFormat),
1087 av_get_pix_fmt_name(c->dstFormat));
1088 return srcSliceH;
1089 }
1090
1091 switch (c->dstFormat) {
1092 case AV_PIX_FMT_BGR24:
1093 gbr24ptopacked24(src102, stride102,
1094 dst[0] + srcSliceY * dstStride[0], dstStride[0],
1095 srcSliceH, c->srcW);
1096 break;
1097
1098 case AV_PIX_FMT_RGB24:
1099 gbr24ptopacked24(src201, stride201,
1100 dst[0] + srcSliceY * dstStride[0], dstStride[0],
1101 srcSliceH, c->srcW);
1102 break;
1103
1104 case AV_PIX_FMT_ARGB:
1105 alpha_first = 1;
1106 case AV_PIX_FMT_RGBA:
1107 gbr24ptopacked32(src201, stride201,
1108 dst[0] + srcSliceY * dstStride[0], dstStride[0],
1109 srcSliceH, alpha_first, c->srcW);
1110 break;
1111
1112 case AV_PIX_FMT_ABGR:
1113 alpha_first = 1;
1114 case AV_PIX_FMT_BGRA:
1115 gbr24ptopacked32(src102, stride102,
1116 dst[0] + srcSliceY * dstStride[0], dstStride[0],
1117 srcSliceH, alpha_first, c->srcW);
1118 break;
1119
1120 default:
1121 av_log(c, AV_LOG_ERROR,
1122 "unsupported planar RGB conversion %s -> %s\n",
1123 av_get_pix_fmt_name(c->srcFormat),
1124 av_get_pix_fmt_name(c->dstFormat));
1125 }
1126
1127 return srcSliceH;
1128 }
1129
planarRgbToplanarRgbWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1130 static int planarRgbToplanarRgbWrapper(SwsContext *c,
1131 const uint8_t *src[], int srcStride[],
1132 int srcSliceY, int srcSliceH,
1133 uint8_t *dst[], int dstStride[])
1134 {
1135 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
1136 dst[0], dstStride[0]);
1137 copyPlane(src[1], srcStride[1], srcSliceY, srcSliceH, c->srcW,
1138 dst[1], dstStride[1]);
1139 copyPlane(src[2], srcStride[2], srcSliceY, srcSliceH, c->srcW,
1140 dst[2], dstStride[2]);
1141 if (dst[3])
1142 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1143
1144 return srcSliceH;
1145 }
1146
packedtogbr24p(const uint8_t * src,int srcStride,uint8_t * dst[],int dstStride[],int srcSliceH,int alpha_first,int inc_size,int width)1147 static void packedtogbr24p(const uint8_t *src, int srcStride,
1148 uint8_t *dst[], int dstStride[], int srcSliceH,
1149 int alpha_first, int inc_size, int width)
1150 {
1151 uint8_t *dest[3];
1152 int x, h;
1153
1154 dest[0] = dst[0];
1155 dest[1] = dst[1];
1156 dest[2] = dst[2];
1157
1158 if (alpha_first)
1159 src++;
1160
1161 for (h = 0; h < srcSliceH; h++) {
1162 for (x = 0; x < width; x++) {
1163 dest[0][x] = src[0];
1164 dest[1][x] = src[1];
1165 dest[2][x] = src[2];
1166
1167 src += inc_size;
1168 }
1169 src += srcStride - width * inc_size;
1170 dest[0] += dstStride[0];
1171 dest[1] += dstStride[1];
1172 dest[2] += dstStride[2];
1173 }
1174 }
1175
rgbToPlanarRgbWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1176 static int rgbToPlanarRgbWrapper(SwsContext *c, const uint8_t *src[],
1177 int srcStride[], int srcSliceY, int srcSliceH,
1178 uint8_t *dst[], int dstStride[])
1179 {
1180 int alpha_first = 0;
1181 int stride102[] = { dstStride[1], dstStride[0], dstStride[2] };
1182 int stride201[] = { dstStride[2], dstStride[0], dstStride[1] };
1183 uint8_t *dst102[] = { dst[1] + srcSliceY * dstStride[1],
1184 dst[0] + srcSliceY * dstStride[0],
1185 dst[2] + srcSliceY * dstStride[2] };
1186 uint8_t *dst201[] = { dst[2] + srcSliceY * dstStride[2],
1187 dst[0] + srcSliceY * dstStride[0],
1188 dst[1] + srcSliceY * dstStride[1] };
1189
1190 switch (c->srcFormat) {
1191 case AV_PIX_FMT_RGB24:
1192 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
1193 stride201, srcSliceH, alpha_first, 3, c->srcW);
1194 break;
1195 case AV_PIX_FMT_BGR24:
1196 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
1197 stride102, srcSliceH, alpha_first, 3, c->srcW);
1198 break;
1199 case AV_PIX_FMT_ARGB:
1200 alpha_first = 1;
1201 case AV_PIX_FMT_RGBA:
1202 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst201,
1203 stride201, srcSliceH, alpha_first, 4, c->srcW);
1204 break;
1205 case AV_PIX_FMT_ABGR:
1206 alpha_first = 1;
1207 case AV_PIX_FMT_BGRA:
1208 packedtogbr24p((const uint8_t *) src[0], srcStride[0], dst102,
1209 stride102, srcSliceH, alpha_first, 4, c->srcW);
1210 break;
1211 default:
1212 av_log(c, AV_LOG_ERROR,
1213 "unsupported planar RGB conversion %s -> %s\n",
1214 av_get_pix_fmt_name(c->srcFormat),
1215 av_get_pix_fmt_name(c->dstFormat));
1216 }
1217
1218 return srcSliceH;
1219 }
1220
1221 #define BAYER_GBRG
1222 #define BAYER_8
1223 #define BAYER_RENAME(x) bayer_gbrg8_to_##x
1224 #include "bayer_template.c"
1225
1226 #define BAYER_GBRG
1227 #define BAYER_16LE
1228 #define BAYER_RENAME(x) bayer_gbrg16le_to_##x
1229 #include "bayer_template.c"
1230
1231 #define BAYER_GBRG
1232 #define BAYER_16BE
1233 #define BAYER_RENAME(x) bayer_gbrg16be_to_##x
1234 #include "bayer_template.c"
1235
1236 #define BAYER_GRBG
1237 #define BAYER_8
1238 #define BAYER_RENAME(x) bayer_grbg8_to_##x
1239 #include "bayer_template.c"
1240
1241 #define BAYER_GRBG
1242 #define BAYER_16LE
1243 #define BAYER_RENAME(x) bayer_grbg16le_to_##x
1244 #include "bayer_template.c"
1245
1246 #define BAYER_GRBG
1247 #define BAYER_16BE
1248 #define BAYER_RENAME(x) bayer_grbg16be_to_##x
1249 #include "bayer_template.c"
1250
1251 #define BAYER_BGGR
1252 #define BAYER_8
1253 #define BAYER_RENAME(x) bayer_bggr8_to_##x
1254 #include "bayer_template.c"
1255
1256 #define BAYER_BGGR
1257 #define BAYER_16LE
1258 #define BAYER_RENAME(x) bayer_bggr16le_to_##x
1259 #include "bayer_template.c"
1260
1261 #define BAYER_BGGR
1262 #define BAYER_16BE
1263 #define BAYER_RENAME(x) bayer_bggr16be_to_##x
1264 #include "bayer_template.c"
1265
1266 #define BAYER_RGGB
1267 #define BAYER_8
1268 #define BAYER_RENAME(x) bayer_rggb8_to_##x
1269 #include "bayer_template.c"
1270
1271 #define BAYER_RGGB
1272 #define BAYER_16LE
1273 #define BAYER_RENAME(x) bayer_rggb16le_to_##x
1274 #include "bayer_template.c"
1275
1276 #define BAYER_RGGB
1277 #define BAYER_16BE
1278 #define BAYER_RENAME(x) bayer_rggb16be_to_##x
1279 #include "bayer_template.c"
1280
bayer_to_rgb24_wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1281 static int bayer_to_rgb24_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1282 int srcSliceH, uint8_t* dst[], int dstStride[])
1283 {
1284 uint8_t *dstPtr= dst[0] + srcSliceY * dstStride[0];
1285 const uint8_t *srcPtr= src[0];
1286 int i;
1287 void (*copy) (const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1288 void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1289
1290 switch(c->srcFormat) {
1291 #define CASE(pixfmt, prefix) \
1292 case pixfmt: copy = bayer_##prefix##_to_rgb24_copy; \
1293 interpolate = bayer_##prefix##_to_rgb24_interpolate; \
1294 break;
1295 CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
1296 CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1297 CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1298 CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
1299 CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1300 CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1301 CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
1302 CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1303 CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1304 CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
1305 CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1306 CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1307 #undef CASE
1308 default: return 0;
1309 }
1310
1311 av_assert0(srcSliceH > 1);
1312
1313 copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1314 srcPtr += 2 * srcStride[0];
1315 dstPtr += 2 * dstStride[0];
1316
1317 for (i = 2; i < srcSliceH - 2; i += 2) {
1318 interpolate(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1319 srcPtr += 2 * srcStride[0];
1320 dstPtr += 2 * dstStride[0];
1321 }
1322
1323 if (i + 1 == srcSliceH) {
1324 copy(srcPtr, -srcStride[0], dstPtr, -dstStride[0], c->srcW);
1325 } else if (i < srcSliceH)
1326 copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1327 return srcSliceH;
1328 }
1329
bayer_to_rgb48_wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1330 static int bayer_to_rgb48_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1331 int srcSliceH, uint8_t* dst[], int dstStride[])
1332 {
1333 uint8_t *dstPtr= dst[0] + srcSliceY * dstStride[0];
1334 const uint8_t *srcPtr= src[0];
1335 int i;
1336 void (*copy) (const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1337 void (*interpolate)(const uint8_t *src, int src_stride, uint8_t *dst, int dst_stride, int width);
1338
1339 switch(c->srcFormat) {
1340 #define CASE(pixfmt, prefix) \
1341 case pixfmt: copy = bayer_##prefix##_to_rgb48_copy; \
1342 interpolate = bayer_##prefix##_to_rgb48_interpolate; \
1343 break;
1344 CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
1345 CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1346 CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1347 CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
1348 CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1349 CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1350 CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
1351 CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1352 CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1353 CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
1354 CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1355 CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1356 #undef CASE
1357 default: return 0;
1358 }
1359
1360 av_assert0(srcSliceH > 1);
1361
1362 copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1363 srcPtr += 2 * srcStride[0];
1364 dstPtr += 2 * dstStride[0];
1365
1366 for (i = 2; i < srcSliceH - 2; i += 2) {
1367 interpolate(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1368 srcPtr += 2 * srcStride[0];
1369 dstPtr += 2 * dstStride[0];
1370 }
1371
1372 if (i + 1 == srcSliceH) {
1373 copy(srcPtr, -srcStride[0], dstPtr, -dstStride[0], c->srcW);
1374 } else if (i < srcSliceH)
1375 copy(srcPtr, srcStride[0], dstPtr, dstStride[0], c->srcW);
1376 return srcSliceH;
1377 }
1378
bayer_to_yv12_wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1379 static int bayer_to_yv12_wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1380 int srcSliceH, uint8_t* dst[], int dstStride[])
1381 {
1382 const uint8_t *srcPtr= src[0];
1383 uint8_t *dstY= dst[0] + srcSliceY * dstStride[0];
1384 uint8_t *dstU= dst[1] + srcSliceY * dstStride[1] / 2;
1385 uint8_t *dstV= dst[2] + srcSliceY * dstStride[2] / 2;
1386 int i;
1387 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);
1388 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);
1389
1390 switch(c->srcFormat) {
1391 #define CASE(pixfmt, prefix) \
1392 case pixfmt: copy = bayer_##prefix##_to_yv12_copy; \
1393 interpolate = bayer_##prefix##_to_yv12_interpolate; \
1394 break;
1395 CASE(AV_PIX_FMT_BAYER_BGGR8, bggr8)
1396 CASE(AV_PIX_FMT_BAYER_BGGR16LE, bggr16le)
1397 CASE(AV_PIX_FMT_BAYER_BGGR16BE, bggr16be)
1398 CASE(AV_PIX_FMT_BAYER_RGGB8, rggb8)
1399 CASE(AV_PIX_FMT_BAYER_RGGB16LE, rggb16le)
1400 CASE(AV_PIX_FMT_BAYER_RGGB16BE, rggb16be)
1401 CASE(AV_PIX_FMT_BAYER_GBRG8, gbrg8)
1402 CASE(AV_PIX_FMT_BAYER_GBRG16LE, gbrg16le)
1403 CASE(AV_PIX_FMT_BAYER_GBRG16BE, gbrg16be)
1404 CASE(AV_PIX_FMT_BAYER_GRBG8, grbg8)
1405 CASE(AV_PIX_FMT_BAYER_GRBG16LE, grbg16le)
1406 CASE(AV_PIX_FMT_BAYER_GRBG16BE, grbg16be)
1407 #undef CASE
1408 default: return 0;
1409 }
1410
1411 av_assert0(srcSliceH > 1);
1412
1413 copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1414 srcPtr += 2 * srcStride[0];
1415 dstY += 2 * dstStride[0];
1416 dstU += dstStride[1];
1417 dstV += dstStride[1];
1418
1419 for (i = 2; i < srcSliceH - 2; i += 2) {
1420 interpolate(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1421 srcPtr += 2 * srcStride[0];
1422 dstY += 2 * dstStride[0];
1423 dstU += dstStride[1];
1424 dstV += dstStride[1];
1425 }
1426
1427 if (i + 1 == srcSliceH) {
1428 copy(srcPtr, -srcStride[0], dstY, dstU, dstV, -dstStride[0], c->srcW, c->input_rgb2yuv_table);
1429 } else if (i < srcSliceH)
1430 copy(srcPtr, srcStride[0], dstY, dstU, dstV, dstStride[0], c->srcW, c->input_rgb2yuv_table);
1431 return srcSliceH;
1432 }
1433
1434 #define isRGBA32(x) ( \
1435 (x) == AV_PIX_FMT_ARGB \
1436 || (x) == AV_PIX_FMT_RGBA \
1437 || (x) == AV_PIX_FMT_BGRA \
1438 || (x) == AV_PIX_FMT_ABGR \
1439 )
1440
1441 #define isRGBA64(x) ( \
1442 (x) == AV_PIX_FMT_RGBA64LE \
1443 || (x) == AV_PIX_FMT_RGBA64BE \
1444 || (x) == AV_PIX_FMT_BGRA64LE \
1445 || (x) == AV_PIX_FMT_BGRA64BE \
1446 )
1447
1448 #define isRGB48(x) ( \
1449 (x) == AV_PIX_FMT_RGB48LE \
1450 || (x) == AV_PIX_FMT_RGB48BE \
1451 || (x) == AV_PIX_FMT_BGR48LE \
1452 || (x) == AV_PIX_FMT_BGR48BE \
1453 )
1454
1455 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1456 typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int);
findRgbConvFn(SwsContext * c)1457 static rgbConvFn findRgbConvFn(SwsContext *c)
1458 {
1459 const enum AVPixelFormat srcFormat = c->srcFormat;
1460 const enum AVPixelFormat dstFormat = c->dstFormat;
1461 const int srcId = c->srcFormatBpp;
1462 const int dstId = c->dstFormatBpp;
1463 rgbConvFn conv = NULL;
1464
1465 #define IS_NOT_NE(bpp, desc) \
1466 (((bpp + 7) >> 3) == 2 && \
1467 (!(desc->flags & AV_PIX_FMT_FLAG_BE) != !HAVE_BIGENDIAN))
1468
1469 #define CONV_IS(src, dst) (srcFormat == AV_PIX_FMT_##src && dstFormat == AV_PIX_FMT_##dst)
1470
1471 if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {
1472 if ( CONV_IS(ABGR, RGBA)
1473 || CONV_IS(ARGB, BGRA)
1474 || CONV_IS(BGRA, ARGB)
1475 || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;
1476 else if (CONV_IS(ABGR, ARGB)
1477 || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;
1478 else if (CONV_IS(ABGR, BGRA)
1479 || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;
1480 else if (CONV_IS(BGRA, RGBA)
1481 || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;
1482 else if (CONV_IS(BGRA, ABGR)
1483 || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;
1484 } else if (isRGB48(srcFormat) && isRGB48(dstFormat)) {
1485 if (CONV_IS(RGB48LE, BGR48LE)
1486 || CONV_IS(BGR48LE, RGB48LE)
1487 || CONV_IS(RGB48BE, BGR48BE)
1488 || CONV_IS(BGR48BE, RGB48BE)) conv = rgb48tobgr48_nobswap;
1489 else if (CONV_IS(RGB48LE, BGR48BE)
1490 || CONV_IS(BGR48LE, RGB48BE)
1491 || CONV_IS(RGB48BE, BGR48LE)
1492 || CONV_IS(BGR48BE, RGB48LE)) conv = rgb48tobgr48_bswap;
1493 } else if (isRGB48(srcFormat) && isRGBA64(dstFormat)) {
1494 if (CONV_IS(RGB48LE, BGRA64LE)
1495 || CONV_IS(BGR48LE, RGBA64LE)
1496 || CONV_IS(RGB48BE, BGRA64BE)
1497 || CONV_IS(BGR48BE, RGBA64BE)) conv = rgb48tobgr64_nobswap;
1498 else if (CONV_IS(RGB48LE, BGRA64BE)
1499 || CONV_IS(BGR48LE, RGBA64BE)
1500 || CONV_IS(RGB48BE, BGRA64LE)
1501 || CONV_IS(BGR48BE, RGBA64LE)) conv = rgb48tobgr64_bswap;
1502 if (CONV_IS(RGB48LE, RGBA64LE)
1503 || CONV_IS(BGR48LE, BGRA64LE)
1504 || CONV_IS(RGB48BE, RGBA64BE)
1505 || CONV_IS(BGR48BE, BGRA64BE)) conv = rgb48to64_nobswap;
1506 else if (CONV_IS(RGB48LE, RGBA64BE)
1507 || CONV_IS(BGR48LE, BGRA64BE)
1508 || CONV_IS(RGB48BE, RGBA64LE)
1509 || CONV_IS(BGR48BE, BGRA64LE)) conv = rgb48to64_bswap;
1510 } else if (isRGBA64(srcFormat) && isRGB48(dstFormat)) {
1511 if (CONV_IS(RGBA64LE, BGR48LE)
1512 || CONV_IS(BGRA64LE, RGB48LE)
1513 || CONV_IS(RGBA64BE, BGR48BE)
1514 || CONV_IS(BGRA64BE, RGB48BE)) conv = rgb64tobgr48_nobswap;
1515 else if (CONV_IS(RGBA64LE, BGR48BE)
1516 || CONV_IS(BGRA64LE, RGB48BE)
1517 || CONV_IS(RGBA64BE, BGR48LE)
1518 || CONV_IS(BGRA64BE, RGB48LE)) conv = rgb64tobgr48_bswap;
1519 else if (CONV_IS(RGBA64LE, RGB48LE)
1520 || CONV_IS(BGRA64LE, BGR48LE)
1521 || CONV_IS(RGBA64BE, RGB48BE)
1522 || CONV_IS(BGRA64BE, BGR48BE)) conv = rgb64to48_nobswap;
1523 else if (CONV_IS(RGBA64LE, RGB48BE)
1524 || CONV_IS(BGRA64LE, BGR48BE)
1525 || CONV_IS(RGBA64BE, RGB48LE)
1526 || CONV_IS(BGRA64BE, BGR48LE)) conv = rgb64to48_bswap;
1527 } else
1528 /* BGR -> BGR */
1529 if ((isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) ||
1530 (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
1531 switch (srcId | (dstId << 16)) {
1532 case 0x000F000C: conv = rgb12to15; break;
1533 case 0x000F0010: conv = rgb16to15; break;
1534 case 0x000F0018: conv = rgb24to15; break;
1535 case 0x000F0020: conv = rgb32to15; break;
1536 case 0x0010000F: conv = rgb15to16; break;
1537 case 0x00100018: conv = rgb24to16; break;
1538 case 0x00100020: conv = rgb32to16; break;
1539 case 0x0018000F: conv = rgb15to24; break;
1540 case 0x00180010: conv = rgb16to24; break;
1541 case 0x00180020: conv = rgb32to24; break;
1542 case 0x0020000F: conv = rgb15to32; break;
1543 case 0x00200010: conv = rgb16to32; break;
1544 case 0x00200018: conv = rgb24to32; break;
1545 }
1546 } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) ||
1547 (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
1548 switch (srcId | (dstId << 16)) {
1549 case 0x000C000C: conv = rgb12tobgr12; break;
1550 case 0x000F000F: conv = rgb15tobgr15; break;
1551 case 0x000F0010: conv = rgb16tobgr15; break;
1552 case 0x000F0018: conv = rgb24tobgr15; break;
1553 case 0x000F0020: conv = rgb32tobgr15; break;
1554 case 0x0010000F: conv = rgb15tobgr16; break;
1555 case 0x00100010: conv = rgb16tobgr16; break;
1556 case 0x00100018: conv = rgb24tobgr16; break;
1557 case 0x00100020: conv = rgb32tobgr16; break;
1558 case 0x0018000F: conv = rgb15tobgr24; break;
1559 case 0x00180010: conv = rgb16tobgr24; break;
1560 case 0x00180018: conv = rgb24tobgr24; break;
1561 case 0x00180020: conv = rgb32tobgr24; break;
1562 case 0x0020000F: conv = rgb15tobgr32; break;
1563 case 0x00200010: conv = rgb16tobgr32; break;
1564 case 0x00200018: conv = rgb24tobgr32; break;
1565 }
1566 }
1567
1568 if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) && !isRGBA32(srcFormat) && ALT32_CORR<0)
1569 return NULL;
1570
1571 // Maintain symmetry between endianness
1572 if (c->flags & SWS_BITEXACT)
1573 if ((dstFormat == AV_PIX_FMT_RGB32 || dstFormat == AV_PIX_FMT_BGR32 ) && !isRGBA32(srcFormat) && ALT32_CORR>0)
1574 return NULL;
1575
1576 return conv;
1577 }
1578
1579 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
rgbToRgbWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1580 static int rgbToRgbWrapper(SwsContext *c, const uint8_t *src[], int srcStride[],
1581 int srcSliceY, int srcSliceH, uint8_t *dst[],
1582 int dstStride[])
1583
1584 {
1585 const enum AVPixelFormat srcFormat = c->srcFormat;
1586 const enum AVPixelFormat dstFormat = c->dstFormat;
1587 const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1588 const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1589 const int srcBpp = (c->srcFormatBpp + 7) >> 3;
1590 const int dstBpp = (c->dstFormatBpp + 7) >> 3;
1591 rgbConvFn conv = findRgbConvFn(c);
1592
1593 if (!conv) {
1594 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1595 av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
1596 } else {
1597 const uint8_t *srcPtr = src[0];
1598 uint8_t *dstPtr = dst[0];
1599 int src_bswap = IS_NOT_NE(c->srcFormatBpp, desc_src);
1600 int dst_bswap = IS_NOT_NE(c->dstFormatBpp, desc_dst);
1601
1602 if ((srcFormat == AV_PIX_FMT_RGB32_1 || srcFormat == AV_PIX_FMT_BGR32_1) &&
1603 !isRGBA32(dstFormat))
1604 srcPtr += ALT32_CORR;
1605
1606 if ((dstFormat == AV_PIX_FMT_RGB32_1 || dstFormat == AV_PIX_FMT_BGR32_1) &&
1607 !isRGBA32(srcFormat)) {
1608 int i;
1609 av_assert0(ALT32_CORR == 1);
1610 for (i = 0; i < srcSliceH; i++)
1611 dstPtr[dstStride[0] * (srcSliceY + i)] = 255;
1612 dstPtr += ALT32_CORR;
1613 }
1614
1615 if (dstStride[0] * srcBpp == srcStride[0] * dstBpp && srcStride[0] > 0 &&
1616 !(srcStride[0] % srcBpp) && !dst_bswap && !src_bswap)
1617 conv(srcPtr, dstPtr + dstStride[0] * srcSliceY,
1618 (srcSliceH - 1) * srcStride[0] + c->srcW * srcBpp);
1619 else {
1620 int i, j;
1621 dstPtr += dstStride[0] * srcSliceY;
1622
1623 for (i = 0; i < srcSliceH; i++) {
1624 if(src_bswap) {
1625 for(j=0; j<c->srcW; j++)
1626 ((uint16_t*)c->formatConvBuffer)[j] = av_bswap16(((uint16_t*)srcPtr)[j]);
1627 conv(c->formatConvBuffer, dstPtr, c->srcW * srcBpp);
1628 }else
1629 conv(srcPtr, dstPtr, c->srcW * srcBpp);
1630 if(dst_bswap)
1631 for(j=0; j<c->srcW; j++)
1632 ((uint16_t*)dstPtr)[j] = av_bswap16(((uint16_t*)dstPtr)[j]);
1633 srcPtr += srcStride[0];
1634 dstPtr += dstStride[0];
1635 }
1636 }
1637 }
1638 return srcSliceH;
1639 }
1640
bgr24ToYv12Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1641 static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
1642 int srcStride[], int srcSliceY, int srcSliceH,
1643 uint8_t *dst[], int dstStride[])
1644 {
1645 ff_rgb24toyv12(
1646 src[0],
1647 dst[0] + srcSliceY * dstStride[0],
1648 dst[1] + (srcSliceY >> 1) * dstStride[1],
1649 dst[2] + (srcSliceY >> 1) * dstStride[2],
1650 c->srcW, srcSliceH,
1651 dstStride[0], dstStride[1], srcStride[0],
1652 c->input_rgb2yuv_table);
1653 if (dst[3])
1654 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1655 return srcSliceH;
1656 }
1657
yvu9ToYv12Wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1658 static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t *src[],
1659 int srcStride[], int srcSliceY, int srcSliceH,
1660 uint8_t *dst[], int dstStride[])
1661 {
1662 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
1663 dst[0], dstStride[0]);
1664
1665 planar2x(src[1], dst[1] + dstStride[1] * (srcSliceY >> 1), c->chrSrcW,
1666 srcSliceH >> 2, srcStride[1], dstStride[1]);
1667 planar2x(src[2], dst[2] + dstStride[2] * (srcSliceY >> 1), c->chrSrcW,
1668 srcSliceH >> 2, srcStride[2], dstStride[2]);
1669 if (dst[3])
1670 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1671 return srcSliceH;
1672 }
1673
uint_y_to_float_y_wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1674 static int uint_y_to_float_y_wrapper(SwsContext *c, const uint8_t *src[],
1675 int srcStride[], int srcSliceY,
1676 int srcSliceH, uint8_t *dst[], int dstStride[])
1677 {
1678 int y, x;
1679 ptrdiff_t dstStrideFloat = dstStride[0] >> 2;
1680 const uint8_t *srcPtr = src[0];
1681 float *dstPtr = (float *)(dst[0] + dstStride[0] * srcSliceY);
1682
1683 for (y = 0; y < srcSliceH; ++y){
1684 for (x = 0; x < c->srcW; ++x){
1685 dstPtr[x] = c->uint2float_lut[srcPtr[x]];
1686 }
1687 srcPtr += srcStride[0];
1688 dstPtr += dstStrideFloat;
1689 }
1690
1691 return srcSliceH;
1692 }
1693
float_y_to_uint_y_wrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1694 static int float_y_to_uint_y_wrapper(SwsContext *c, const uint8_t* src[],
1695 int srcStride[], int srcSliceY,
1696 int srcSliceH, uint8_t* dst[], int dstStride[])
1697 {
1698 int y, x;
1699 ptrdiff_t srcStrideFloat = srcStride[0] >> 2;
1700 const float *srcPtr = (const float *)src[0];
1701 uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
1702
1703 for (y = 0; y < srcSliceH; ++y){
1704 for (x = 0; x < c->srcW; ++x){
1705 dstPtr[x] = av_clip_uint8(lrintf(255.0f * srcPtr[x]));
1706 }
1707 srcPtr += srcStrideFloat;
1708 dstPtr += dstStride[0];
1709 }
1710
1711 return srcSliceH;
1712 }
1713
1714 /* unscaled copy like stuff (assumes nearly identical formats) */
packedCopyWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1715 static int packedCopyWrapper(SwsContext *c, const uint8_t *src[],
1716 int srcStride[], int srcSliceY, int srcSliceH,
1717 uint8_t *dst[], int dstStride[])
1718 {
1719 if (dstStride[0] == srcStride[0] && srcStride[0] > 0)
1720 memcpy(dst[0] + dstStride[0] * srcSliceY, src[0], srcSliceH * dstStride[0]);
1721 else {
1722 int i;
1723 const uint8_t *srcPtr = src[0];
1724 uint8_t *dstPtr = dst[0] + dstStride[0] * srcSliceY;
1725 int length = 0;
1726
1727 /* universal length finder */
1728 while (length + c->srcW <= FFABS(dstStride[0]) &&
1729 length + c->srcW <= FFABS(srcStride[0]))
1730 length += c->srcW;
1731 av_assert1(length != 0);
1732
1733 for (i = 0; i < srcSliceH; i++) {
1734 memcpy(dstPtr, srcPtr, length);
1735 srcPtr += srcStride[0];
1736 dstPtr += dstStride[0];
1737 }
1738 }
1739 return srcSliceH;
1740 }
1741
1742 #define DITHER_COPY(dst, dstStride, src, srcStride, bswap, dbswap)\
1743 unsigned shift= src_depth-dst_depth, tmp;\
1744 if (c->dither == SWS_DITHER_NONE) {\
1745 for (i = 0; i < height; i++) {\
1746 for (j = 0; j < length-7; j+=8) {\
1747 dst[j+0] = dbswap(bswap(src[j+0])>>shift);\
1748 dst[j+1] = dbswap(bswap(src[j+1])>>shift);\
1749 dst[j+2] = dbswap(bswap(src[j+2])>>shift);\
1750 dst[j+3] = dbswap(bswap(src[j+3])>>shift);\
1751 dst[j+4] = dbswap(bswap(src[j+4])>>shift);\
1752 dst[j+5] = dbswap(bswap(src[j+5])>>shift);\
1753 dst[j+6] = dbswap(bswap(src[j+6])>>shift);\
1754 dst[j+7] = dbswap(bswap(src[j+7])>>shift);\
1755 }\
1756 for (; j < length; j++) {\
1757 dst[j] = dbswap(bswap(src[j])>>shift);\
1758 }\
1759 dst += dstStride;\
1760 src += srcStride;\
1761 }\
1762 } else if (shiftonly) {\
1763 for (i = 0; i < height; i++) {\
1764 const uint8_t *dither= dithers[shift-1][i&7];\
1765 for (j = 0; j < length-7; j+=8) {\
1766 tmp = (bswap(src[j+0]) + dither[0])>>shift; dst[j+0] = dbswap(tmp - (tmp>>dst_depth));\
1767 tmp = (bswap(src[j+1]) + dither[1])>>shift; dst[j+1] = dbswap(tmp - (tmp>>dst_depth));\
1768 tmp = (bswap(src[j+2]) + dither[2])>>shift; dst[j+2] = dbswap(tmp - (tmp>>dst_depth));\
1769 tmp = (bswap(src[j+3]) + dither[3])>>shift; dst[j+3] = dbswap(tmp - (tmp>>dst_depth));\
1770 tmp = (bswap(src[j+4]) + dither[4])>>shift; dst[j+4] = dbswap(tmp - (tmp>>dst_depth));\
1771 tmp = (bswap(src[j+5]) + dither[5])>>shift; dst[j+5] = dbswap(tmp - (tmp>>dst_depth));\
1772 tmp = (bswap(src[j+6]) + dither[6])>>shift; dst[j+6] = dbswap(tmp - (tmp>>dst_depth));\
1773 tmp = (bswap(src[j+7]) + dither[7])>>shift; dst[j+7] = dbswap(tmp - (tmp>>dst_depth));\
1774 }\
1775 for (; j < length; j++) {\
1776 tmp = (bswap(src[j]) + dither[j&7])>>shift; dst[j] = dbswap(tmp - (tmp>>dst_depth));\
1777 }\
1778 dst += dstStride;\
1779 src += srcStride;\
1780 }\
1781 } else {\
1782 for (i = 0; i < height; i++) {\
1783 const uint8_t *dither= dithers[shift-1][i&7];\
1784 for (j = 0; j < length-7; j+=8) {\
1785 tmp = bswap(src[j+0]); dst[j+0] = dbswap((tmp - (tmp>>dst_depth) + dither[0])>>shift);\
1786 tmp = bswap(src[j+1]); dst[j+1] = dbswap((tmp - (tmp>>dst_depth) + dither[1])>>shift);\
1787 tmp = bswap(src[j+2]); dst[j+2] = dbswap((tmp - (tmp>>dst_depth) + dither[2])>>shift);\
1788 tmp = bswap(src[j+3]); dst[j+3] = dbswap((tmp - (tmp>>dst_depth) + dither[3])>>shift);\
1789 tmp = bswap(src[j+4]); dst[j+4] = dbswap((tmp - (tmp>>dst_depth) + dither[4])>>shift);\
1790 tmp = bswap(src[j+5]); dst[j+5] = dbswap((tmp - (tmp>>dst_depth) + dither[5])>>shift);\
1791 tmp = bswap(src[j+6]); dst[j+6] = dbswap((tmp - (tmp>>dst_depth) + dither[6])>>shift);\
1792 tmp = bswap(src[j+7]); dst[j+7] = dbswap((tmp - (tmp>>dst_depth) + dither[7])>>shift);\
1793 }\
1794 for (; j < length; j++) {\
1795 tmp = bswap(src[j]); dst[j] = dbswap((tmp - (tmp>>dst_depth) + dither[j&7])>>shift);\
1796 }\
1797 dst += dstStride;\
1798 src += srcStride;\
1799 }\
1800 }
1801
planarCopyWrapper(SwsContext * c,const uint8_t * src[],int srcStride[],int srcSliceY,int srcSliceH,uint8_t * dst[],int dstStride[])1802 static int planarCopyWrapper(SwsContext *c, const uint8_t *src[],
1803 int srcStride[], int srcSliceY, int srcSliceH,
1804 uint8_t *dst[], int dstStride[])
1805 {
1806 const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(c->srcFormat);
1807 const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->dstFormat);
1808 int plane, i, j;
1809 for (plane = 0; plane < 4 && dst[plane] != NULL; plane++) {
1810 int length = (plane == 0 || plane == 3) ? c->srcW : AV_CEIL_RSHIFT(c->srcW, c->chrDstHSubSample);
1811 int y = (plane == 0 || plane == 3) ? srcSliceY: AV_CEIL_RSHIFT(srcSliceY, c->chrDstVSubSample);
1812 int height = (plane == 0 || plane == 3) ? srcSliceH: AV_CEIL_RSHIFT(srcSliceH, c->chrDstVSubSample);
1813 const uint8_t *srcPtr = src[plane];
1814 uint8_t *dstPtr = dst[plane] + dstStride[plane] * y;
1815 int shiftonly = plane == 1 || plane == 2 || (!c->srcRange && plane == 0);
1816
1817 // ignore palette for GRAY8
1818 if (plane == 1 && !dst[2]) continue;
1819 if (!src[plane] || (plane == 1 && !src[2])) {
1820 if (is16BPS(c->dstFormat) || isNBPS(c->dstFormat)) {
1821 fillPlane16(dst[plane], dstStride[plane], length, height, y,
1822 plane == 3, desc_dst->comp[plane].depth,
1823 isBE(c->dstFormat));
1824 } else {
1825 fillPlane(dst[plane], dstStride[plane], length, height, y,
1826 (plane == 3) ? 255 : 128);
1827 }
1828 } else {
1829 if(isNBPS(c->srcFormat) || isNBPS(c->dstFormat)
1830 || (is16BPS(c->srcFormat) != is16BPS(c->dstFormat))
1831 ) {
1832 const int src_depth = desc_src->comp[plane].depth;
1833 const int dst_depth = desc_dst->comp[plane].depth;
1834 const uint16_t *srcPtr2 = (const uint16_t *) srcPtr;
1835 uint16_t *dstPtr2 = (uint16_t*)dstPtr;
1836
1837 if (dst_depth == 8) {
1838 if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1839 DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, , )
1840 } else {
1841 DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, av_bswap16, )
1842 }
1843 } else if (src_depth == 8) {
1844 for (i = 0; i < height; i++) {
1845 #define COPY816(w)\
1846 if (shiftonly) {\
1847 for (j = 0; j < length; j++)\
1848 w(&dstPtr2[j], srcPtr[j]<<(dst_depth-8));\
1849 } else {\
1850 for (j = 0; j < length; j++)\
1851 w(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) |\
1852 (srcPtr[j]>>(2*8-dst_depth)));\
1853 }
1854 if(isBE(c->dstFormat)){
1855 COPY816(AV_WB16)
1856 } else {
1857 COPY816(AV_WL16)
1858 }
1859 dstPtr2 += dstStride[plane]/2;
1860 srcPtr += srcStride[plane];
1861 }
1862 } else if (src_depth <= dst_depth) {
1863 for (i = 0; i < height; i++) {
1864 j = 0;
1865 if(isBE(c->srcFormat) == HAVE_BIGENDIAN &&
1866 isBE(c->dstFormat) == HAVE_BIGENDIAN &&
1867 shiftonly) {
1868 unsigned shift = dst_depth - src_depth;
1869 #if HAVE_FAST_64BIT
1870 #define FAST_COPY_UP(shift) \
1871 for (; j < length - 3; j += 4) { \
1872 uint64_t v = AV_RN64A(srcPtr2 + j); \
1873 AV_WN64A(dstPtr2 + j, v << shift); \
1874 }
1875 #else
1876 #define FAST_COPY_UP(shift) \
1877 for (; j < length - 1; j += 2) { \
1878 uint32_t v = AV_RN32A(srcPtr2 + j); \
1879 AV_WN32A(dstPtr2 + j, v << shift); \
1880 }
1881 #endif
1882 switch (shift)
1883 {
1884 case 6: FAST_COPY_UP(6); break;
1885 case 7: FAST_COPY_UP(7); break;
1886 }
1887 }
1888 #define COPY_UP(r,w) \
1889 if(shiftonly){\
1890 for (; j < length; j++){ \
1891 unsigned int v= r(&srcPtr2[j]);\
1892 w(&dstPtr2[j], v<<(dst_depth-src_depth));\
1893 }\
1894 }else{\
1895 for (; j < length; j++){ \
1896 unsigned int v= r(&srcPtr2[j]);\
1897 w(&dstPtr2[j], (v<<(dst_depth-src_depth)) | \
1898 (v>>(2*src_depth-dst_depth)));\
1899 }\
1900 }
1901 if(isBE(c->srcFormat)){
1902 if(isBE(c->dstFormat)){
1903 COPY_UP(AV_RB16, AV_WB16)
1904 } else {
1905 COPY_UP(AV_RB16, AV_WL16)
1906 }
1907 } else {
1908 if(isBE(c->dstFormat)){
1909 COPY_UP(AV_RL16, AV_WB16)
1910 } else {
1911 COPY_UP(AV_RL16, AV_WL16)
1912 }
1913 }
1914 dstPtr2 += dstStride[plane]/2;
1915 srcPtr2 += srcStride[plane]/2;
1916 }
1917 } else {
1918 if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
1919 if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1920 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , )
1921 } else {
1922 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , av_bswap16)
1923 }
1924 }else{
1925 if(isBE(c->dstFormat) == HAVE_BIGENDIAN){
1926 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, )
1927 } else {
1928 DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, av_bswap16)
1929 }
1930 }
1931 }
1932 } else if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat) &&
1933 isBE(c->srcFormat) != isBE(c->dstFormat)) {
1934
1935 for (i = 0; i < height; i++) {
1936 for (j = 0; j < length; j++)
1937 ((uint16_t *) dstPtr)[j] = av_bswap16(((const uint16_t *) srcPtr)[j]);
1938 srcPtr += srcStride[plane];
1939 dstPtr += dstStride[plane];
1940 }
1941 } else if (isFloat(c->srcFormat) && isFloat(c->dstFormat) &&
1942 isBE(c->srcFormat) != isBE(c->dstFormat)) { /* swap float plane */
1943 for (i = 0; i < height; i++) {
1944 for (j = 0; j < length; j++)
1945 ((uint32_t *) dstPtr)[j] = av_bswap32(((const uint32_t *) srcPtr)[j]);
1946 srcPtr += srcStride[plane];
1947 dstPtr += dstStride[plane];
1948 }
1949 } else if (dstStride[plane] == srcStride[plane] &&
1950 srcStride[plane] > 0 && srcStride[plane] == length) {
1951 memcpy(dst[plane] + dstStride[plane] * y, src[plane],
1952 height * dstStride[plane]);
1953 } else {
1954 if (is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
1955 length *= 2;
1956 else if (desc_src->comp[0].depth == 1)
1957 length >>= 3; // monowhite/black
1958 for (i = 0; i < height; i++) {
1959 memcpy(dstPtr, srcPtr, length);
1960 srcPtr += srcStride[plane];
1961 dstPtr += dstStride[plane];
1962 }
1963 }
1964 }
1965 }
1966 return srcSliceH;
1967 }
1968
1969
1970 #define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt) \
1971 ((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) || \
1972 (src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE))
1973
1974
ff_get_unscaled_swscale(SwsContext * c)1975 void ff_get_unscaled_swscale(SwsContext *c)
1976 {
1977 const enum AVPixelFormat srcFormat = c->srcFormat;
1978 const enum AVPixelFormat dstFormat = c->dstFormat;
1979 const int flags = c->flags;
1980 const int dstH = c->dstH;
1981 int needsDither;
1982
1983 needsDither = isAnyRGB(dstFormat) &&
1984 c->dstFormatBpp < 24 &&
1985 (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
1986
1987 /* yv12_to_nv12 */
1988 if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) &&
1989 (dstFormat == AV_PIX_FMT_NV12 || dstFormat == AV_PIX_FMT_NV21)) {
1990 c->swscale = planarToNv12Wrapper;
1991 }
1992 /* yv24_to_nv24 */
1993 if ((srcFormat == AV_PIX_FMT_YUV444P || srcFormat == AV_PIX_FMT_YUVA444P) &&
1994 (dstFormat == AV_PIX_FMT_NV24 || dstFormat == AV_PIX_FMT_NV42)) {
1995 c->swscale = planarToNv24Wrapper;
1996 }
1997 /* nv12_to_yv12 */
1998 if (dstFormat == AV_PIX_FMT_YUV420P &&
1999 (srcFormat == AV_PIX_FMT_NV12 || srcFormat == AV_PIX_FMT_NV21)) {
2000 c->swscale = nv12ToPlanarWrapper;
2001 }
2002 /* nv24_to_yv24 */
2003 if (dstFormat == AV_PIX_FMT_YUV444P &&
2004 (srcFormat == AV_PIX_FMT_NV24 || srcFormat == AV_PIX_FMT_NV42)) {
2005 c->swscale = nv24ToPlanarWrapper;
2006 }
2007 /* yuv2bgr */
2008 if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUV422P ||
2009 srcFormat == AV_PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) &&
2010 !(flags & SWS_ACCURATE_RND) && (c->dither == SWS_DITHER_BAYER || c->dither == SWS_DITHER_AUTO) && !(dstH & 1)) {
2011 c->swscale = ff_yuv2rgb_get_func_ptr(c);
2012 }
2013 /* yuv420p1x_to_p01x */
2014 if ((srcFormat == AV_PIX_FMT_YUV420P10 || srcFormat == AV_PIX_FMT_YUVA420P10 ||
2015 srcFormat == AV_PIX_FMT_YUV420P12 ||
2016 srcFormat == AV_PIX_FMT_YUV420P14 ||
2017 srcFormat == AV_PIX_FMT_YUV420P16 || srcFormat == AV_PIX_FMT_YUVA420P16) &&
2018 (dstFormat == AV_PIX_FMT_P010 || dstFormat == AV_PIX_FMT_P016)) {
2019 c->swscale = planarToP01xWrapper;
2020 }
2021 /* yuv420p_to_p01xle */
2022 if ((srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) &&
2023 (dstFormat == AV_PIX_FMT_P010LE || dstFormat == AV_PIX_FMT_P016LE)) {
2024 c->swscale = planar8ToP01xleWrapper;
2025 }
2026
2027 if (srcFormat == AV_PIX_FMT_YUV410P && !(dstH & 3) &&
2028 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
2029 !(flags & SWS_BITEXACT)) {
2030 c->swscale = yvu9ToYv12Wrapper;
2031 }
2032
2033 /* bgr24toYV12 */
2034 if (srcFormat == AV_PIX_FMT_BGR24 &&
2035 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P) &&
2036 !(flags & SWS_ACCURATE_RND))
2037 c->swscale = bgr24ToYv12Wrapper;
2038
2039 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
2040 if (isAnyRGB(srcFormat) && isAnyRGB(dstFormat) && findRgbConvFn(c)
2041 && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
2042 c->swscale = rgbToRgbWrapper;
2043
2044 /* RGB to planar RGB */
2045 if ((srcFormat == AV_PIX_FMT_GBRP && dstFormat == AV_PIX_FMT_GBRAP) ||
2046 (srcFormat == AV_PIX_FMT_GBRAP && dstFormat == AV_PIX_FMT_GBRP))
2047 c->swscale = planarRgbToplanarRgbWrapper;
2048
2049 #define isByteRGB(f) ( \
2050 f == AV_PIX_FMT_RGB32 || \
2051 f == AV_PIX_FMT_RGB32_1 || \
2052 f == AV_PIX_FMT_RGB24 || \
2053 f == AV_PIX_FMT_BGR32 || \
2054 f == AV_PIX_FMT_BGR32_1 || \
2055 f == AV_PIX_FMT_BGR24)
2056
2057 if (srcFormat == AV_PIX_FMT_GBRP && isPlanar(srcFormat) && isByteRGB(dstFormat))
2058 c->swscale = planarRgbToRgbWrapper;
2059
2060 if (srcFormat == AV_PIX_FMT_GBRAP && isByteRGB(dstFormat))
2061 c->swscale = planarRgbaToRgbWrapper;
2062
2063 if ((srcFormat == AV_PIX_FMT_RGB48LE || srcFormat == AV_PIX_FMT_RGB48BE ||
2064 srcFormat == AV_PIX_FMT_BGR48LE || srcFormat == AV_PIX_FMT_BGR48BE ||
2065 srcFormat == AV_PIX_FMT_RGBA64LE || srcFormat == AV_PIX_FMT_RGBA64BE ||
2066 srcFormat == AV_PIX_FMT_BGRA64LE || srcFormat == AV_PIX_FMT_BGRA64BE) &&
2067 (dstFormat == AV_PIX_FMT_GBRP9LE || dstFormat == AV_PIX_FMT_GBRP9BE ||
2068 dstFormat == AV_PIX_FMT_GBRP10LE || dstFormat == AV_PIX_FMT_GBRP10BE ||
2069 dstFormat == AV_PIX_FMT_GBRP12LE || dstFormat == AV_PIX_FMT_GBRP12BE ||
2070 dstFormat == AV_PIX_FMT_GBRP14LE || dstFormat == AV_PIX_FMT_GBRP14BE ||
2071 dstFormat == AV_PIX_FMT_GBRP16LE || dstFormat == AV_PIX_FMT_GBRP16BE ||
2072 dstFormat == AV_PIX_FMT_GBRAP10LE || dstFormat == AV_PIX_FMT_GBRAP10BE ||
2073 dstFormat == AV_PIX_FMT_GBRAP12LE || dstFormat == AV_PIX_FMT_GBRAP12BE ||
2074 dstFormat == AV_PIX_FMT_GBRAP16LE || dstFormat == AV_PIX_FMT_GBRAP16BE ))
2075 c->swscale = Rgb16ToPlanarRgb16Wrapper;
2076
2077 if ((srcFormat == AV_PIX_FMT_GBRP9LE || srcFormat == AV_PIX_FMT_GBRP9BE ||
2078 srcFormat == AV_PIX_FMT_GBRP16LE || srcFormat == AV_PIX_FMT_GBRP16BE ||
2079 srcFormat == AV_PIX_FMT_GBRP10LE || srcFormat == AV_PIX_FMT_GBRP10BE ||
2080 srcFormat == AV_PIX_FMT_GBRP12LE || srcFormat == AV_PIX_FMT_GBRP12BE ||
2081 srcFormat == AV_PIX_FMT_GBRP14LE || srcFormat == AV_PIX_FMT_GBRP14BE ||
2082 srcFormat == AV_PIX_FMT_GBRAP10LE || srcFormat == AV_PIX_FMT_GBRAP10BE ||
2083 srcFormat == AV_PIX_FMT_GBRAP12LE || srcFormat == AV_PIX_FMT_GBRAP12BE ||
2084 srcFormat == AV_PIX_FMT_GBRAP16LE || srcFormat == AV_PIX_FMT_GBRAP16BE) &&
2085 (dstFormat == AV_PIX_FMT_RGB48LE || dstFormat == AV_PIX_FMT_RGB48BE ||
2086 dstFormat == AV_PIX_FMT_BGR48LE || dstFormat == AV_PIX_FMT_BGR48BE ||
2087 dstFormat == AV_PIX_FMT_RGBA64LE || dstFormat == AV_PIX_FMT_RGBA64BE ||
2088 dstFormat == AV_PIX_FMT_BGRA64LE || dstFormat == AV_PIX_FMT_BGRA64BE))
2089 c->swscale = planarRgb16ToRgb16Wrapper;
2090
2091 if (av_pix_fmt_desc_get(srcFormat)->comp[0].depth == 8 &&
2092 isPackedRGB(srcFormat) && dstFormat == AV_PIX_FMT_GBRP)
2093 c->swscale = rgbToPlanarRgbWrapper;
2094
2095 if (isBayer(srcFormat)) {
2096 if (dstFormat == AV_PIX_FMT_RGB24)
2097 c->swscale = bayer_to_rgb24_wrapper;
2098 else if (dstFormat == AV_PIX_FMT_RGB48)
2099 c->swscale = bayer_to_rgb48_wrapper;
2100 else if (dstFormat == AV_PIX_FMT_YUV420P)
2101 c->swscale = bayer_to_yv12_wrapper;
2102 else if (!isBayer(dstFormat)) {
2103 av_log(c, AV_LOG_ERROR, "unsupported bayer conversion\n");
2104 av_assert0(0);
2105 }
2106 }
2107
2108 /* bswap 16 bits per pixel/component packed formats */
2109 if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_BGGR16) ||
2110 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_RGGB16) ||
2111 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GBRG16) ||
2112 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BAYER_GRBG16) ||
2113 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR444) ||
2114 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR48) ||
2115 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR555) ||
2116 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGR565) ||
2117 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_BGRA64) ||
2118 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY9) ||
2119 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY10) ||
2120 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY12) ||
2121 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY14) ||
2122 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GRAY16) ||
2123 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YA16) ||
2124 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_AYUV64) ||
2125 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP9) ||
2126 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP10) ||
2127 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP12) ||
2128 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP14) ||
2129 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRP16) ||
2130 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP10) ||
2131 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP12) ||
2132 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAP16) ||
2133 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB444) ||
2134 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB48) ||
2135 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB555) ||
2136 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGB565) ||
2137 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_RGBA64) ||
2138 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_XYZ12) ||
2139 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P9) ||
2140 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P10) ||
2141 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P12) ||
2142 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P14) ||
2143 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV420P16) ||
2144 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P9) ||
2145 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P10) ||
2146 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P12) ||
2147 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P14) ||
2148 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV422P16) ||
2149 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV440P10) ||
2150 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV440P12) ||
2151 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P9) ||
2152 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P10) ||
2153 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P12) ||
2154 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P14) ||
2155 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_YUV444P16))
2156 c->swscale = bswap_16bpc;
2157
2158 /* bswap 32 bits per pixel/component formats */
2159 if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRPF32) ||
2160 IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, AV_PIX_FMT_GBRAPF32))
2161 c->swscale = bswap_32bpc;
2162
2163 if (usePal(srcFormat) && isByteRGB(dstFormat))
2164 c->swscale = palToRgbWrapper;
2165
2166 if (srcFormat == AV_PIX_FMT_YUV422P) {
2167 if (dstFormat == AV_PIX_FMT_YUYV422)
2168 c->swscale = yuv422pToYuy2Wrapper;
2169 else if (dstFormat == AV_PIX_FMT_UYVY422)
2170 c->swscale = yuv422pToUyvyWrapper;
2171 }
2172
2173 /* uint Y to float Y */
2174 if (srcFormat == AV_PIX_FMT_GRAY8 && dstFormat == AV_PIX_FMT_GRAYF32){
2175 c->swscale = uint_y_to_float_y_wrapper;
2176 }
2177
2178 /* float Y to uint Y */
2179 if (srcFormat == AV_PIX_FMT_GRAYF32 && dstFormat == AV_PIX_FMT_GRAY8){
2180 c->swscale = float_y_to_uint_y_wrapper;
2181 }
2182
2183 /* LQ converters if -sws 0 or -sws 4*/
2184 if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
2185 /* yv12_to_yuy2 */
2186 if (srcFormat == AV_PIX_FMT_YUV420P || srcFormat == AV_PIX_FMT_YUVA420P) {
2187 if (dstFormat == AV_PIX_FMT_YUYV422)
2188 c->swscale = planarToYuy2Wrapper;
2189 else if (dstFormat == AV_PIX_FMT_UYVY422)
2190 c->swscale = planarToUyvyWrapper;
2191 }
2192 }
2193 if (srcFormat == AV_PIX_FMT_YUYV422 &&
2194 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
2195 c->swscale = yuyvToYuv420Wrapper;
2196 if (srcFormat == AV_PIX_FMT_UYVY422 &&
2197 (dstFormat == AV_PIX_FMT_YUV420P || dstFormat == AV_PIX_FMT_YUVA420P))
2198 c->swscale = uyvyToYuv420Wrapper;
2199 if (srcFormat == AV_PIX_FMT_YUYV422 && dstFormat == AV_PIX_FMT_YUV422P)
2200 c->swscale = yuyvToYuv422Wrapper;
2201 if (srcFormat == AV_PIX_FMT_UYVY422 && dstFormat == AV_PIX_FMT_YUV422P)
2202 c->swscale = uyvyToYuv422Wrapper;
2203
2204 #define isPlanarGray(x) (isGray(x) && (x) != AV_PIX_FMT_YA8 && (x) != AV_PIX_FMT_YA16LE && (x) != AV_PIX_FMT_YA16BE)
2205 /* simple copy */
2206 if ( srcFormat == dstFormat ||
2207 (srcFormat == AV_PIX_FMT_YUVA420P && dstFormat == AV_PIX_FMT_YUV420P) ||
2208 (srcFormat == AV_PIX_FMT_YUV420P && dstFormat == AV_PIX_FMT_YUVA420P) ||
2209 (isFloat(srcFormat) == isFloat(dstFormat)) && ((isPlanarYUV(srcFormat) && isPlanarGray(dstFormat)) ||
2210 (isPlanarYUV(dstFormat) && isPlanarGray(srcFormat)) ||
2211 (isPlanarGray(dstFormat) && isPlanarGray(srcFormat)) ||
2212 (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) &&
2213 c->chrDstHSubSample == c->chrSrcHSubSample &&
2214 c->chrDstVSubSample == c->chrSrcVSubSample &&
2215 !isSemiPlanarYUV(srcFormat) && !isSemiPlanarYUV(dstFormat))))
2216 {
2217 if (isPacked(c->srcFormat))
2218 c->swscale = packedCopyWrapper;
2219 else /* Planar YUV or gray */
2220 c->swscale = planarCopyWrapper;
2221 }
2222
2223 if (ARCH_PPC)
2224 ff_get_unscaled_swscale_ppc(c);
2225 if (ARCH_ARM)
2226 ff_get_unscaled_swscale_arm(c);
2227 if (ARCH_AARCH64)
2228 ff_get_unscaled_swscale_aarch64(c);
2229 }
2230
2231 /* Convert the palette to the same packed 32-bit format as the palette */
sws_convertPalette8ToPacked32(const uint8_t * src,uint8_t * dst,int num_pixels,const uint8_t * palette)2232 void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst,
2233 int num_pixels, const uint8_t *palette)
2234 {
2235 int i;
2236
2237 for (i = 0; i < num_pixels; i++)
2238 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
2239 }
2240
2241 /* Palette format: ABCD -> dst format: ABC */
sws_convertPalette8ToPacked24(const uint8_t * src,uint8_t * dst,int num_pixels,const uint8_t * palette)2242 void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst,
2243 int num_pixels, const uint8_t *palette)
2244 {
2245 int i;
2246
2247 for (i = 0; i < num_pixels; i++) {
2248 //FIXME slow?
2249 dst[0] = palette[src[i] * 4 + 0];
2250 dst[1] = palette[src[i] * 4 + 1];
2251 dst[2] = palette[src[i] * 4 + 2];
2252 dst += 3;
2253 }
2254 }
2255