swscale: simplify initialization code
[libav.git] / libswscale / swscale.c
1 /*
2 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of Libav.
5 *
6 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /*
22 supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8
23 supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
24 {BGR,RGB}{1,4,8,15,16} support dithering
25
26 unscaled special converters (YV12=I420=IYUV, Y800=Y8)
27 YV12 -> {BGR,RGB}{1,4,8,12,15,16,24,32}
28 x -> x
29 YUV9 -> YV12
30 YUV9/YV12 -> Y800
31 Y800 -> YUV9/YV12
32 BGR24 -> BGR32 & RGB24 -> RGB32
33 BGR32 -> BGR24 & RGB32 -> RGB24
34 BGR15 -> BGR16
35 */
36
37 /*
38 tested special converters (most are tested actually, but I did not write it down ...)
39 YV12 -> BGR12/BGR16
40 YV12 -> YV12
41 BGR15 -> BGR16
42 BGR16 -> BGR16
43 YVU9 -> YV12
44
45 untested special converters
46 YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be OK)
47 YV12/I420 -> YV12/I420
48 YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
49 BGR24 -> BGR32 & RGB24 -> RGB32
50 BGR32 -> BGR24 & RGB32 -> RGB24
51 BGR24 -> YV12
52 */
53
54 #include <inttypes.h>
55 #include <string.h>
56 #include <math.h>
57 #include <stdio.h>
58 #include "config.h"
59 #include <assert.h>
60 #include "swscale.h"
61 #include "swscale_internal.h"
62 #include "rgb2rgb.h"
63 #include "libavutil/intreadwrite.h"
64 #include "libavutil/x86_cpu.h"
65 #include "libavutil/avutil.h"
66 #include "libavutil/mathematics.h"
67 #include "libavutil/bswap.h"
68 #include "libavutil/pixdesc.h"
69
70 #undef MOVNTQ
71 #undef PAVGB
72
73 //#undef HAVE_MMX2
74 //#define HAVE_AMD3DNOW
75 //#undef HAVE_MMX
76 //#undef ARCH_X86
77 #define DITHER1XBPP
78
79 #define isPacked(x) ( \
80 (x)==PIX_FMT_PAL8 \
81 || (x)==PIX_FMT_YUYV422 \
82 || (x)==PIX_FMT_UYVY422 \
83 || (x)==PIX_FMT_Y400A \
84 || isAnyRGB(x) \
85 )
86
87 #define RGB2YUV_SHIFT 15
88 #define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
89 #define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
90 #define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
91 #define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
92 #define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
93 #define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
94 #define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
95 #define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
96 #define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
97
98 static const double rgb2yuv_table[8][9]={
99 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, //ITU709
100 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, //ITU709
101 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M
102 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M
103 {0.59 , 0.11 , 0.30 , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
104 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M
105 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M
106 {0.701 , 0.087 , 0.212 , -0.384, 0.5, -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
107 };
108
109 /*
110 NOTES
111 Special versions: fast Y 1:1 scaling (no interpolation in y direction)
112
113 TODO
114 more intelligent misalignment avoidance for the horizontal scaler
115 write special vertical cubic upscale version
116 optimize C code (YV12 / minmax)
117 add support for packed pixel YUV input & output
118 add support for Y8 output
119 optimize BGR24 & BGR32
120 add BGR4 output support
121 write special BGR->BGR scaler
122 */
123
124 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_4)[2][8]={
125 { 1, 3, 1, 3, 1, 3, 1, 3, },
126 { 2, 0, 2, 0, 2, 0, 2, 0, },
127 };
128
129 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_8)[2][8]={
130 { 6, 2, 6, 2, 6, 2, 6, 2, },
131 { 0, 4, 0, 4, 0, 4, 0, 4, },
132 };
133
134 DECLARE_ALIGNED(8, const uint8_t, dither_4x4_16)[4][8]={
135 { 8, 4, 11, 7, 8, 4, 11, 7, },
136 { 2, 14, 1, 13, 2, 14, 1, 13, },
137 { 10, 6, 9, 5, 10, 6, 9, 5, },
138 { 0, 12, 3, 15, 0, 12, 3, 15, },
139 };
140
141 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_32)[8][8]={
142 { 17, 9, 23, 15, 16, 8, 22, 14, },
143 { 5, 29, 3, 27, 4, 28, 2, 26, },
144 { 21, 13, 19, 11, 20, 12, 18, 10, },
145 { 0, 24, 6, 30, 1, 25, 7, 31, },
146 { 16, 8, 22, 14, 17, 9, 23, 15, },
147 { 4, 28, 2, 26, 5, 29, 3, 27, },
148 { 20, 12, 18, 10, 21, 13, 19, 11, },
149 { 1, 25, 7, 31, 0, 24, 6, 30, },
150 };
151
152 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_73)[8][8]={
153 { 0, 55, 14, 68, 3, 58, 17, 72, },
154 { 37, 18, 50, 32, 40, 22, 54, 35, },
155 { 9, 64, 5, 59, 13, 67, 8, 63, },
156 { 46, 27, 41, 23, 49, 31, 44, 26, },
157 { 2, 57, 16, 71, 1, 56, 15, 70, },
158 { 39, 21, 52, 34, 38, 19, 51, 33, },
159 { 11, 66, 7, 62, 10, 65, 6, 60, },
160 { 48, 30, 43, 25, 47, 29, 42, 24, },
161 };
162
163 #if 1
164 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={
165 {117, 62, 158, 103, 113, 58, 155, 100, },
166 { 34, 199, 21, 186, 31, 196, 17, 182, },
167 {144, 89, 131, 76, 141, 86, 127, 72, },
168 { 0, 165, 41, 206, 10, 175, 52, 217, },
169 {110, 55, 151, 96, 120, 65, 162, 107, },
170 { 28, 193, 14, 179, 38, 203, 24, 189, },
171 {138, 83, 124, 69, 148, 93, 134, 79, },
172 { 7, 172, 48, 213, 3, 168, 45, 210, },
173 };
174 #elif 1
175 // tries to correct a gamma of 1.5
176 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={
177 { 0, 143, 18, 200, 2, 156, 25, 215, },
178 { 78, 28, 125, 64, 89, 36, 138, 74, },
179 { 10, 180, 3, 161, 16, 195, 8, 175, },
180 {109, 51, 93, 38, 121, 60, 105, 47, },
181 { 1, 152, 23, 210, 0, 147, 20, 205, },
182 { 85, 33, 134, 71, 81, 30, 130, 67, },
183 { 14, 190, 6, 171, 12, 185, 5, 166, },
184 {117, 57, 101, 44, 113, 54, 97, 41, },
185 };
186 #elif 1
187 // tries to correct a gamma of 2.0
188 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={
189 { 0, 124, 8, 193, 0, 140, 12, 213, },
190 { 55, 14, 104, 42, 66, 19, 119, 52, },
191 { 3, 168, 1, 145, 6, 187, 3, 162, },
192 { 86, 31, 70, 21, 99, 39, 82, 28, },
193 { 0, 134, 11, 206, 0, 129, 9, 200, },
194 { 62, 17, 114, 48, 58, 16, 109, 45, },
195 { 5, 181, 2, 157, 4, 175, 1, 151, },
196 { 95, 36, 78, 26, 90, 34, 74, 24, },
197 };
198 #else
199 // tries to correct a gamma of 2.5
200 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={
201 { 0, 107, 3, 187, 0, 125, 6, 212, },
202 { 39, 7, 86, 28, 49, 11, 102, 36, },
203 { 1, 158, 0, 131, 3, 180, 1, 151, },
204 { 68, 19, 52, 12, 81, 25, 64, 17, },
205 { 0, 119, 5, 203, 0, 113, 4, 195, },
206 { 45, 9, 96, 33, 42, 8, 91, 30, },
207 { 2, 172, 1, 144, 2, 165, 0, 137, },
208 { 77, 23, 60, 15, 72, 21, 56, 14, },
209 };
210 #endif
211
212 static av_always_inline void yuv2yuvX16inC_template(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
213 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
214 const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest,
215 int dstW, int chrDstW, int big_endian)
216 {
217 //FIXME Optimize (just quickly written not optimized..)
218 int i;
219
220 for (i = 0; i < dstW; i++) {
221 int val = 1 << 10;
222 int j;
223
224 for (j = 0; j < lumFilterSize; j++)
225 val += lumSrc[j][i] * lumFilter[j];
226
227 if (big_endian) {
228 AV_WB16(&dest[i], av_clip_uint16(val >> 11));
229 } else {
230 AV_WL16(&dest[i], av_clip_uint16(val >> 11));
231 }
232 }
233
234 if (uDest) {
235 for (i = 0; i < chrDstW; i++) {
236 int u = 1 << 10;
237 int v = 1 << 10;
238 int j;
239
240 for (j = 0; j < chrFilterSize; j++) {
241 u += chrSrc[j][i ] * chrFilter[j];
242 v += chrSrc[j][i + VOFW] * chrFilter[j];
243 }
244
245 if (big_endian) {
246 AV_WB16(&uDest[i], av_clip_uint16(u >> 11));
247 AV_WB16(&vDest[i], av_clip_uint16(v >> 11));
248 } else {
249 AV_WL16(&uDest[i], av_clip_uint16(u >> 11));
250 AV_WL16(&vDest[i], av_clip_uint16(v >> 11));
251 }
252 }
253 }
254
255 if (CONFIG_SWSCALE_ALPHA && aDest) {
256 for (i = 0; i < dstW; i++) {
257 int val = 1 << 10;
258 int j;
259
260 for (j = 0; j < lumFilterSize; j++)
261 val += alpSrc[j][i] * lumFilter[j];
262
263 if (big_endian) {
264 AV_WB16(&aDest[i], av_clip_uint16(val >> 11));
265 } else {
266 AV_WL16(&aDest[i], av_clip_uint16(val >> 11));
267 }
268 }
269 }
270 }
271
272 static inline void yuv2yuvX16inC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
273 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
274 const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest, int dstW, int chrDstW,
275 enum PixelFormat dstFormat)
276 {
277 if (isBE(dstFormat)) {
278 yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,
279 chrFilter, chrSrc, chrFilterSize,
280 alpSrc,
281 dest, uDest, vDest, aDest,
282 dstW, chrDstW, 1);
283 } else {
284 yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,
285 chrFilter, chrSrc, chrFilterSize,
286 alpSrc,
287 dest, uDest, vDest, aDest,
288 dstW, chrDstW, 0);
289 }
290 }
291
292 static inline void yuv2yuvXinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
293 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
294 const int16_t **alpSrc, uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, int dstW, int chrDstW)
295 {
296 //FIXME Optimize (just quickly written not optimized..)
297 int i;
298 for (i=0; i<dstW; i++) {
299 int val=1<<18;
300 int j;
301 for (j=0; j<lumFilterSize; j++)
302 val += lumSrc[j][i] * lumFilter[j];
303
304 dest[i]= av_clip_uint8(val>>19);
305 }
306
307 if (uDest)
308 for (i=0; i<chrDstW; i++) {
309 int u=1<<18;
310 int v=1<<18;
311 int j;
312 for (j=0; j<chrFilterSize; j++) {
313 u += chrSrc[j][i] * chrFilter[j];
314 v += chrSrc[j][i + VOFW] * chrFilter[j];
315 }
316
317 uDest[i]= av_clip_uint8(u>>19);
318 vDest[i]= av_clip_uint8(v>>19);
319 }
320
321 if (CONFIG_SWSCALE_ALPHA && aDest)
322 for (i=0; i<dstW; i++) {
323 int val=1<<18;
324 int j;
325 for (j=0; j<lumFilterSize; j++)
326 val += alpSrc[j][i] * lumFilter[j];
327
328 aDest[i]= av_clip_uint8(val>>19);
329 }
330
331 }
332
333 static inline void yuv2nv12XinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
334 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
335 uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
336 {
337 //FIXME Optimize (just quickly written not optimized..)
338 int i;
339 for (i=0; i<dstW; i++) {
340 int val=1<<18;
341 int j;
342 for (j=0; j<lumFilterSize; j++)
343 val += lumSrc[j][i] * lumFilter[j];
344
345 dest[i]= av_clip_uint8(val>>19);
346 }
347
348 if (!uDest)
349 return;
350
351 if (dstFormat == PIX_FMT_NV12)
352 for (i=0; i<chrDstW; i++) {
353 int u=1<<18;
354 int v=1<<18;
355 int j;
356 for (j=0; j<chrFilterSize; j++) {
357 u += chrSrc[j][i] * chrFilter[j];
358 v += chrSrc[j][i + VOFW] * chrFilter[j];
359 }
360
361 uDest[2*i]= av_clip_uint8(u>>19);
362 uDest[2*i+1]= av_clip_uint8(v>>19);
363 }
364 else
365 for (i=0; i<chrDstW; i++) {
366 int u=1<<18;
367 int v=1<<18;
368 int j;
369 for (j=0; j<chrFilterSize; j++) {
370 u += chrSrc[j][i] * chrFilter[j];
371 v += chrSrc[j][i + VOFW] * chrFilter[j];
372 }
373
374 uDest[2*i]= av_clip_uint8(v>>19);
375 uDest[2*i+1]= av_clip_uint8(u>>19);
376 }
377 }
378
379 #define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \
380 for (i=0; i<(dstW>>1); i++) {\
381 int j;\
382 int Y1 = 1<<18;\
383 int Y2 = 1<<18;\
384 int U = 1<<18;\
385 int V = 1<<18;\
386 int av_unused A1, A2;\
387 type av_unused *r, *b, *g;\
388 const int i2= 2*i;\
389 \
390 for (j=0; j<lumFilterSize; j++) {\
391 Y1 += lumSrc[j][i2] * lumFilter[j];\
392 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
393 }\
394 for (j=0; j<chrFilterSize; j++) {\
395 U += chrSrc[j][i] * chrFilter[j];\
396 V += chrSrc[j][i+VOFW] * chrFilter[j];\
397 }\
398 Y1>>=19;\
399 Y2>>=19;\
400 U >>=19;\
401 V >>=19;\
402 if (alpha) {\
403 A1 = 1<<18;\
404 A2 = 1<<18;\
405 for (j=0; j<lumFilterSize; j++) {\
406 A1 += alpSrc[j][i2 ] * lumFilter[j];\
407 A2 += alpSrc[j][i2+1] * lumFilter[j];\
408 }\
409 A1>>=19;\
410 A2>>=19;\
411 }
412
413 #define YSCALE_YUV_2_PACKEDX_C(type,alpha) \
414 YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\
415 if ((Y1|Y2|U|V)&256) {\
416 if (Y1>255) Y1=255; \
417 else if (Y1<0)Y1=0; \
418 if (Y2>255) Y2=255; \
419 else if (Y2<0)Y2=0; \
420 if (U>255) U=255; \
421 else if (U<0) U=0; \
422 if (V>255) V=255; \
423 else if (V<0) V=0; \
424 }\
425 if (alpha && ((A1|A2)&256)) {\
426 A1=av_clip_uint8(A1);\
427 A2=av_clip_uint8(A2);\
428 }
429
430 #define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \
431 for (i=0; i<dstW; i++) {\
432 int j;\
433 int Y = 0;\
434 int U = -128<<19;\
435 int V = -128<<19;\
436 int av_unused A;\
437 int R,G,B;\
438 \
439 for (j=0; j<lumFilterSize; j++) {\
440 Y += lumSrc[j][i ] * lumFilter[j];\
441 }\
442 for (j=0; j<chrFilterSize; j++) {\
443 U += chrSrc[j][i ] * chrFilter[j];\
444 V += chrSrc[j][i+VOFW] * chrFilter[j];\
445 }\
446 Y >>=10;\
447 U >>=10;\
448 V >>=10;\
449 if (alpha) {\
450 A = rnd;\
451 for (j=0; j<lumFilterSize; j++)\
452 A += alpSrc[j][i ] * lumFilter[j];\
453 A >>=19;\
454 if (A&256)\
455 A = av_clip_uint8(A);\
456 }
457
458 #define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \
459 YSCALE_YUV_2_PACKEDX_FULL_C(rnd>>3,alpha)\
460 Y-= c->yuv2rgb_y_offset;\
461 Y*= c->yuv2rgb_y_coeff;\
462 Y+= rnd;\
463 R= Y + V*c->yuv2rgb_v2r_coeff;\
464 G= Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;\
465 B= Y + U*c->yuv2rgb_u2b_coeff;\
466 if ((R|G|B)&(0xC0000000)) {\
467 if (R>=(256<<22)) R=(256<<22)-1; \
468 else if (R<0)R=0; \
469 if (G>=(256<<22)) G=(256<<22)-1; \
470 else if (G<0)G=0; \
471 if (B>=(256<<22)) B=(256<<22)-1; \
472 else if (B<0)B=0; \
473 }
474
475 #define YSCALE_YUV_2_GRAY16_C \
476 for (i=0; i<(dstW>>1); i++) {\
477 int j;\
478 int Y1 = 1<<18;\
479 int Y2 = 1<<18;\
480 int U = 1<<18;\
481 int V = 1<<18;\
482 \
483 const int i2= 2*i;\
484 \
485 for (j=0; j<lumFilterSize; j++) {\
486 Y1 += lumSrc[j][i2] * lumFilter[j];\
487 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
488 }\
489 Y1>>=11;\
490 Y2>>=11;\
491 if ((Y1|Y2|U|V)&65536) {\
492 if (Y1>65535) Y1=65535; \
493 else if (Y1<0)Y1=0; \
494 if (Y2>65535) Y2=65535; \
495 else if (Y2<0)Y2=0; \
496 }
497
498 #define YSCALE_YUV_2_RGBX_C(type,alpha) \
499 YSCALE_YUV_2_PACKEDX_C(type,alpha) /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\
500 r = (type *)c->table_rV[V]; \
501 g = (type *)(c->table_gU[U] + c->table_gV[V]); \
502 b = (type *)c->table_bU[U];
503
504 #define YSCALE_YUV_2_PACKED2_C(type,alpha) \
505 for (i=0; i<(dstW>>1); i++) { \
506 const int i2= 2*i; \
507 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19; \
508 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19; \
509 int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19; \
510 int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19; \
511 type av_unused *r, *b, *g; \
512 int av_unused A1, A2; \
513 if (alpha) {\
514 A1= (abuf0[i2 ]*yalpha1+abuf1[i2 ]*yalpha)>>19; \
515 A2= (abuf0[i2+1]*yalpha1+abuf1[i2+1]*yalpha)>>19; \
516 }
517
518 #define YSCALE_YUV_2_GRAY16_2_C \
519 for (i=0; i<(dstW>>1); i++) { \
520 const int i2= 2*i; \
521 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>11; \
522 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11;
523
524 #define YSCALE_YUV_2_RGB2_C(type,alpha) \
525 YSCALE_YUV_2_PACKED2_C(type,alpha)\
526 r = (type *)c->table_rV[V];\
527 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
528 b = (type *)c->table_bU[U];
529
530 #define YSCALE_YUV_2_PACKED1_C(type,alpha) \
531 for (i=0; i<(dstW>>1); i++) {\
532 const int i2= 2*i;\
533 int Y1= buf0[i2 ]>>7;\
534 int Y2= buf0[i2+1]>>7;\
535 int U= (uvbuf1[i ])>>7;\
536 int V= (uvbuf1[i+VOFW])>>7;\
537 type av_unused *r, *b, *g;\
538 int av_unused A1, A2;\
539 if (alpha) {\
540 A1= abuf0[i2 ]>>7;\
541 A2= abuf0[i2+1]>>7;\
542 }
543
544 #define YSCALE_YUV_2_GRAY16_1_C \
545 for (i=0; i<(dstW>>1); i++) {\
546 const int i2= 2*i;\
547 int Y1= buf0[i2 ]<<1;\
548 int Y2= buf0[i2+1]<<1;
549
550 #define YSCALE_YUV_2_RGB1_C(type,alpha) \
551 YSCALE_YUV_2_PACKED1_C(type,alpha)\
552 r = (type *)c->table_rV[V];\
553 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
554 b = (type *)c->table_bU[U];
555
556 #define YSCALE_YUV_2_PACKED1B_C(type,alpha) \
557 for (i=0; i<(dstW>>1); i++) {\
558 const int i2= 2*i;\
559 int Y1= buf0[i2 ]>>7;\
560 int Y2= buf0[i2+1]>>7;\
561 int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
562 int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
563 type av_unused *r, *b, *g;\
564 int av_unused A1, A2;\
565 if (alpha) {\
566 A1= abuf0[i2 ]>>7;\
567 A2= abuf0[i2+1]>>7;\
568 }
569
570 #define YSCALE_YUV_2_RGB1B_C(type,alpha) \
571 YSCALE_YUV_2_PACKED1B_C(type,alpha)\
572 r = (type *)c->table_rV[V];\
573 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
574 b = (type *)c->table_bU[U];
575
576 #define YSCALE_YUV_2_MONO2_C \
577 const uint8_t * const d128=dither_8x8_220[y&7];\
578 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
579 for (i=0; i<dstW-7; i+=8) {\
580 int acc;\
581 acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
582 acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
583 acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
584 acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
585 acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
586 acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
587 acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
588 acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
589 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
590 dest++;\
591 }
592
593 #define YSCALE_YUV_2_MONOX_C \
594 const uint8_t * const d128=dither_8x8_220[y&7];\
595 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
596 int acc=0;\
597 for (i=0; i<dstW-1; i+=2) {\
598 int j;\
599 int Y1=1<<18;\
600 int Y2=1<<18;\
601 \
602 for (j=0; j<lumFilterSize; j++) {\
603 Y1 += lumSrc[j][i] * lumFilter[j];\
604 Y2 += lumSrc[j][i+1] * lumFilter[j];\
605 }\
606 Y1>>=19;\
607 Y2>>=19;\
608 if ((Y1|Y2)&256) {\
609 if (Y1>255) Y1=255;\
610 else if (Y1<0)Y1=0;\
611 if (Y2>255) Y2=255;\
612 else if (Y2<0)Y2=0;\
613 }\
614 acc+= acc + g[Y1+d128[(i+0)&7]];\
615 acc+= acc + g[Y2+d128[(i+1)&7]];\
616 if ((i&7)==6) {\
617 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
618 dest++;\
619 }\
620 }
621
622 #define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\
623 switch(c->dstFormat) {\
624 case PIX_FMT_RGB48BE:\
625 case PIX_FMT_RGB48LE:\
626 func(uint8_t,0)\
627 ((uint8_t*)dest)[ 0]= r[Y1];\
628 ((uint8_t*)dest)[ 1]= r[Y1];\
629 ((uint8_t*)dest)[ 2]= g[Y1];\
630 ((uint8_t*)dest)[ 3]= g[Y1];\
631 ((uint8_t*)dest)[ 4]= b[Y1];\
632 ((uint8_t*)dest)[ 5]= b[Y1];\
633 ((uint8_t*)dest)[ 6]= r[Y2];\
634 ((uint8_t*)dest)[ 7]= r[Y2];\
635 ((uint8_t*)dest)[ 8]= g[Y2];\
636 ((uint8_t*)dest)[ 9]= g[Y2];\
637 ((uint8_t*)dest)[10]= b[Y2];\
638 ((uint8_t*)dest)[11]= b[Y2];\
639 dest+=12;\
640 }\
641 break;\
642 case PIX_FMT_RGBA:\
643 case PIX_FMT_BGRA:\
644 if (CONFIG_SMALL) {\
645 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
646 func(uint32_t,needAlpha)\
647 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? (A1<<24) : 0);\
648 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? (A2<<24) : 0);\
649 }\
650 } else {\
651 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\
652 func(uint32_t,1)\
653 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (A1<<24);\
654 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (A2<<24);\
655 }\
656 } else {\
657 func(uint32_t,0)\
658 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
659 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
660 }\
661 }\
662 }\
663 break;\
664 case PIX_FMT_ARGB:\
665 case PIX_FMT_ABGR:\
666 if (CONFIG_SMALL) {\
667 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
668 func(uint32_t,needAlpha)\
669 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? A1 : 0);\
670 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? A2 : 0);\
671 }\
672 } else {\
673 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\
674 func(uint32_t,1)\
675 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + A1;\
676 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + A2;\
677 }\
678 } else {\
679 func(uint32_t,0)\
680 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
681 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
682 }\
683 }\
684 } \
685 break;\
686 case PIX_FMT_RGB24:\
687 func(uint8_t,0)\
688 ((uint8_t*)dest)[0]= r[Y1];\
689 ((uint8_t*)dest)[1]= g[Y1];\
690 ((uint8_t*)dest)[2]= b[Y1];\
691 ((uint8_t*)dest)[3]= r[Y2];\
692 ((uint8_t*)dest)[4]= g[Y2];\
693 ((uint8_t*)dest)[5]= b[Y2];\
694 dest+=6;\
695 }\
696 break;\
697 case PIX_FMT_BGR24:\
698 func(uint8_t,0)\
699 ((uint8_t*)dest)[0]= b[Y1];\
700 ((uint8_t*)dest)[1]= g[Y1];\
701 ((uint8_t*)dest)[2]= r[Y1];\
702 ((uint8_t*)dest)[3]= b[Y2];\
703 ((uint8_t*)dest)[4]= g[Y2];\
704 ((uint8_t*)dest)[5]= r[Y2];\
705 dest+=6;\
706 }\
707 break;\
708 case PIX_FMT_RGB565BE:\
709 case PIX_FMT_RGB565LE:\
710 case PIX_FMT_BGR565BE:\
711 case PIX_FMT_BGR565LE:\
712 {\
713 const int dr1= dither_2x2_8[y&1 ][0];\
714 const int dg1= dither_2x2_4[y&1 ][0];\
715 const int db1= dither_2x2_8[(y&1)^1][0];\
716 const int dr2= dither_2x2_8[y&1 ][1];\
717 const int dg2= dither_2x2_4[y&1 ][1];\
718 const int db2= dither_2x2_8[(y&1)^1][1];\
719 func(uint16_t,0)\
720 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
721 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
722 }\
723 }\
724 break;\
725 case PIX_FMT_RGB555BE:\
726 case PIX_FMT_RGB555LE:\
727 case PIX_FMT_BGR555BE:\
728 case PIX_FMT_BGR555LE:\
729 {\
730 const int dr1= dither_2x2_8[y&1 ][0];\
731 const int dg1= dither_2x2_8[y&1 ][1];\
732 const int db1= dither_2x2_8[(y&1)^1][0];\
733 const int dr2= dither_2x2_8[y&1 ][1];\
734 const int dg2= dither_2x2_8[y&1 ][0];\
735 const int db2= dither_2x2_8[(y&1)^1][1];\
736 func(uint16_t,0)\
737 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
738 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
739 }\
740 }\
741 break;\
742 case PIX_FMT_RGB444BE:\
743 case PIX_FMT_RGB444LE:\
744 case PIX_FMT_BGR444BE:\
745 case PIX_FMT_BGR444LE:\
746 {\
747 const int dr1= dither_4x4_16[y&3 ][0];\
748 const int dg1= dither_4x4_16[y&3 ][1];\
749 const int db1= dither_4x4_16[(y&3)^3][0];\
750 const int dr2= dither_4x4_16[y&3 ][1];\
751 const int dg2= dither_4x4_16[y&3 ][0];\
752 const int db2= dither_4x4_16[(y&3)^3][1];\
753 func(uint16_t,0)\
754 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
755 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
756 }\
757 }\
758 break;\
759 case PIX_FMT_RGB8:\
760 case PIX_FMT_BGR8:\
761 {\
762 const uint8_t * const d64= dither_8x8_73[y&7];\
763 const uint8_t * const d32= dither_8x8_32[y&7];\
764 func(uint8_t,0)\
765 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
766 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
767 }\
768 }\
769 break;\
770 case PIX_FMT_RGB4:\
771 case PIX_FMT_BGR4:\
772 {\
773 const uint8_t * const d64= dither_8x8_73 [y&7];\
774 const uint8_t * const d128=dither_8x8_220[y&7];\
775 func(uint8_t,0)\
776 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
777 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
778 }\
779 }\
780 break;\
781 case PIX_FMT_RGB4_BYTE:\
782 case PIX_FMT_BGR4_BYTE:\
783 {\
784 const uint8_t * const d64= dither_8x8_73 [y&7];\
785 const uint8_t * const d128=dither_8x8_220[y&7];\
786 func(uint8_t,0)\
787 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
788 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
789 }\
790 }\
791 break;\
792 case PIX_FMT_MONOBLACK:\
793 case PIX_FMT_MONOWHITE:\
794 {\
795 func_monoblack\
796 }\
797 break;\
798 case PIX_FMT_YUYV422:\
799 func2\
800 ((uint8_t*)dest)[2*i2+0]= Y1;\
801 ((uint8_t*)dest)[2*i2+1]= U;\
802 ((uint8_t*)dest)[2*i2+2]= Y2;\
803 ((uint8_t*)dest)[2*i2+3]= V;\
804 } \
805 break;\
806 case PIX_FMT_UYVY422:\
807 func2\
808 ((uint8_t*)dest)[2*i2+0]= U;\
809 ((uint8_t*)dest)[2*i2+1]= Y1;\
810 ((uint8_t*)dest)[2*i2+2]= V;\
811 ((uint8_t*)dest)[2*i2+3]= Y2;\
812 } \
813 break;\
814 case PIX_FMT_GRAY16BE:\
815 func_g16\
816 ((uint8_t*)dest)[2*i2+0]= Y1>>8;\
817 ((uint8_t*)dest)[2*i2+1]= Y1;\
818 ((uint8_t*)dest)[2*i2+2]= Y2>>8;\
819 ((uint8_t*)dest)[2*i2+3]= Y2;\
820 } \
821 break;\
822 case PIX_FMT_GRAY16LE:\
823 func_g16\
824 ((uint8_t*)dest)[2*i2+0]= Y1;\
825 ((uint8_t*)dest)[2*i2+1]= Y1>>8;\
826 ((uint8_t*)dest)[2*i2+2]= Y2;\
827 ((uint8_t*)dest)[2*i2+3]= Y2>>8;\
828 } \
829 break;\
830 }
831
832 static inline void yuv2packedXinC(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
833 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
834 const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
835 {
836 int i;
837 YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGBX_C, YSCALE_YUV_2_PACKEDX_C(void,0), YSCALE_YUV_2_GRAY16_C, YSCALE_YUV_2_MONOX_C)
838 }
839
840 static inline void yuv2rgbXinC_full(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
841 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
842 const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
843 {
844 int i;
845 int step= c->dstFormatBpp/8;
846 int aidx= 3;
847
848 switch(c->dstFormat) {
849 case PIX_FMT_ARGB:
850 dest++;
851 aidx= 0;
852 case PIX_FMT_RGB24:
853 aidx--;
854 case PIX_FMT_RGBA:
855 if (CONFIG_SMALL) {
856 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
857 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
858 dest[aidx]= needAlpha ? A : 255;
859 dest[0]= R>>22;
860 dest[1]= G>>22;
861 dest[2]= B>>22;
862 dest+= step;
863 }
864 } else {
865 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
866 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
867 dest[aidx]= A;
868 dest[0]= R>>22;
869 dest[1]= G>>22;
870 dest[2]= B>>22;
871 dest+= step;
872 }
873 } else {
874 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
875 dest[aidx]= 255;
876 dest[0]= R>>22;
877 dest[1]= G>>22;
878 dest[2]= B>>22;
879 dest+= step;
880 }
881 }
882 }
883 break;
884 case PIX_FMT_ABGR:
885 dest++;
886 aidx= 0;
887 case PIX_FMT_BGR24:
888 aidx--;
889 case PIX_FMT_BGRA:
890 if (CONFIG_SMALL) {
891 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
892 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
893 dest[aidx]= needAlpha ? A : 255;
894 dest[0]= B>>22;
895 dest[1]= G>>22;
896 dest[2]= R>>22;
897 dest+= step;
898 }
899 } else {
900 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
901 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
902 dest[aidx]= A;
903 dest[0]= B>>22;
904 dest[1]= G>>22;
905 dest[2]= R>>22;
906 dest+= step;
907 }
908 } else {
909 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
910 dest[aidx]= 255;
911 dest[0]= B>>22;
912 dest[1]= G>>22;
913 dest[2]= R>>22;
914 dest+= step;
915 }
916 }
917 }
918 break;
919 default:
920 assert(0);
921 }
922 }
923
924 static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val)
925 {
926 int i;
927 uint8_t *ptr = plane + stride*y;
928 for (i=0; i<height; i++) {
929 memset(ptr, val, width);
930 ptr += stride;
931 }
932 }
933
934 static inline void rgb48ToY(uint8_t *dst, const uint8_t *src, long width,
935 uint32_t *unused)
936 {
937 int i;
938 for (i = 0; i < width; i++) {
939 int r = src[i*6+0];
940 int g = src[i*6+2];
941 int b = src[i*6+4];
942
943 dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
944 }
945 }
946
947 static inline void rgb48ToUV(uint8_t *dstU, uint8_t *dstV,
948 const uint8_t *src1, const uint8_t *src2,
949 long width, uint32_t *unused)
950 {
951 int i;
952 assert(src1==src2);
953 for (i = 0; i < width; i++) {
954 int r = src1[6*i + 0];
955 int g = src1[6*i + 2];
956 int b = src1[6*i + 4];
957
958 dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
959 dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
960 }
961 }
962
963 static inline void rgb48ToUV_half(uint8_t *dstU, uint8_t *dstV,
964 const uint8_t *src1, const uint8_t *src2,
965 long width, uint32_t *unused)
966 {
967 int i;
968 assert(src1==src2);
969 for (i = 0; i < width; i++) {
970 int r= src1[12*i + 0] + src1[12*i + 6];
971 int g= src1[12*i + 2] + src1[12*i + 8];
972 int b= src1[12*i + 4] + src1[12*i + 10];
973
974 dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
975 dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
976 }
977 }
978
979 #define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\
980 static inline void name(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)\
981 {\
982 int i;\
983 for (i=0; i<width; i++) {\
984 int b= (((const type*)src)[i]>>shb)&maskb;\
985 int g= (((const type*)src)[i]>>shg)&maskg;\
986 int r= (((const type*)src)[i]>>shr)&maskr;\
987 \
988 dst[i]= (((RY)*r + (GY)*g + (BY)*b + (33<<((S)-1)))>>(S));\
989 }\
990 }
991
992 BGR2Y(uint32_t, bgr32ToY,16, 0, 0, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, RGB2YUV_SHIFT+8)
993 BGR2Y(uint32_t,bgr321ToY,16,16, 0, 0xFF00, 0x00FF, 0xFF00, RY , GY<<8, BY , RGB2YUV_SHIFT+8)
994 BGR2Y(uint32_t, rgb32ToY, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, RGB2YUV_SHIFT+8)
995 BGR2Y(uint32_t,rgb321ToY, 0,16,16, 0xFF00, 0x00FF, 0xFF00, RY , GY<<8, BY , RGB2YUV_SHIFT+8)
996 BGR2Y(uint16_t, bgr16ToY, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RY<<11, GY<<5, BY , RGB2YUV_SHIFT+8)
997 BGR2Y(uint16_t, bgr15ToY, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY<<10, GY<<5, BY , RGB2YUV_SHIFT+7)
998 BGR2Y(uint16_t, rgb16ToY, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY , GY<<5, BY<<11, RGB2YUV_SHIFT+8)
999 BGR2Y(uint16_t, rgb15ToY, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY , GY<<5, BY<<10, RGB2YUV_SHIFT+7)
1000
1001 static inline void abgrToA(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1002 {
1003 int i;
1004 for (i=0; i<width; i++) {
1005 dst[i]= src[4*i];
1006 }
1007 }
1008
1009 #define BGR2UV(type, name, shr, shg, shb, shp, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S) \
1010 static inline void name(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1011 {\
1012 int i;\
1013 for (i=0; i<width; i++) {\
1014 int b= ((((const type*)src)[i]>>shp)&maskb)>>shb;\
1015 int g= ((((const type*)src)[i]>>shp)&maskg)>>shg;\
1016 int r= ((((const type*)src)[i]>>shp)&maskr)>>shr;\
1017 \
1018 dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<((S)-1)))>>(S);\
1019 dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\
1020 }\
1021 }\
1022 static inline void name ## _half(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1023 {\
1024 int i;\
1025 for (i=0; i<width; i++) {\
1026 int pix0= ((const type*)src)[2*i+0]>>shp;\
1027 int pix1= ((const type*)src)[2*i+1]>>shp;\
1028 int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\
1029 int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\
1030 int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\
1031 g&= maskg|(2*maskg);\
1032 \
1033 g>>=shg;\
1034 \
1035 dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<(S)))>>((S)+1);\
1036 dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<(S)))>>((S)+1);\
1037 }\
1038 }
1039
1040 BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0, 0xFF0000, 0xFF00, 0x00FF, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
1041 BGR2UV(uint32_t,bgr321ToUV,16, 0, 0, 8, 0xFF0000, 0xFF00, 0x00FF, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
1042 BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0, 0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
1043 BGR2UV(uint32_t,rgb321ToUV, 0, 0,16, 8, 0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
1044 BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RU<<11, GU<<5, BU , RV<<11, GV<<5, BV , RGB2YUV_SHIFT+8)
1045 BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RU<<10, GU<<5, BU , RV<<10, GV<<5, BV , RGB2YUV_SHIFT+7)
1046 BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RU , GU<<5, BU<<11, RV , GV<<5, BV<<11, RGB2YUV_SHIFT+8)
1047 BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RU , GU<<5, BU<<10, RV , GV<<5, BV<<10, RGB2YUV_SHIFT+7)
1048
1049 static inline void palToY(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)
1050 {
1051 int i;
1052 for (i=0; i<width; i++) {
1053 int d= src[i];
1054
1055 dst[i]= pal[d] & 0xFF;
1056 }
1057 }
1058
1059 static inline void palToUV(uint8_t *dstU, uint8_t *dstV,
1060 const uint8_t *src1, const uint8_t *src2,
1061 long width, uint32_t *pal)
1062 {
1063 int i;
1064 assert(src1 == src2);
1065 for (i=0; i<width; i++) {
1066 int p= pal[src1[i]];
1067
1068 dstU[i]= p>>8;
1069 dstV[i]= p>>16;
1070 }
1071 }
1072
1073 static inline void monowhite2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1074 {
1075 int i, j;
1076 for (i=0; i<width/8; i++) {
1077 int d= ~src[i];
1078 for(j=0; j<8; j++)
1079 dst[8*i+j]= ((d>>(7-j))&1)*255;
1080 }
1081 }
1082
1083 static inline void monoblack2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1084 {
1085 int i, j;
1086 for (i=0; i<width/8; i++) {
1087 int d= src[i];
1088 for(j=0; j<8; j++)
1089 dst[8*i+j]= ((d>>(7-j))&1)*255;
1090 }
1091 }
1092
1093 //Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
1094 //Plain C versions
1095 #if CONFIG_RUNTIME_CPUDETECT
1096 # define COMPILE_C 1
1097 # if ARCH_X86
1098 # define COMPILE_MMX HAVE_MMX
1099 # define COMPILE_MMX2 HAVE_MMX2
1100 # define COMPILE_3DNOW HAVE_AMD3DNOW
1101 # elif ARCH_PPC
1102 # define COMPILE_ALTIVEC HAVE_ALTIVEC
1103 # endif
1104 #else /* CONFIG_RUNTIME_CPUDETECT */
1105 # if ARCH_X86
1106 # if HAVE_MMX2
1107 # define COMPILE_MMX2 1
1108 # elif HAVE_AMD3DNOW
1109 # define COMPILE_3DNOW 1
1110 # elif HAVE_MMX
1111 # define COMPILE_MMX 1
1112 # else
1113 # define COMPILE_C 1
1114 # endif
1115 # elif ARCH_PPC && HAVE_ALTIVEC
1116 # define COMPILE_ALTIVEC 1
1117 # else
1118 # define COMPILE_C 1
1119 # endif
1120 #endif
1121
1122 #ifndef COMPILE_C
1123 # define COMPILE_C 0
1124 #endif
1125 #ifndef COMPILE_MMX
1126 # define COMPILE_MMX 0
1127 #endif
1128 #ifndef COMPILE_MMX2
1129 # define COMPILE_MMX2 0
1130 #endif
1131 #ifndef COMPILE_3DNOW
1132 # define COMPILE_3DNOW 0
1133 #endif
1134 #ifndef COMPILE_ALTIVEC
1135 # define COMPILE_ALTIVEC 0
1136 #endif
1137
1138 #define COMPILE_TEMPLATE_MMX 0
1139 #define COMPILE_TEMPLATE_MMX2 0
1140 #define COMPILE_TEMPLATE_AMD3DNOW 0
1141 #define COMPILE_TEMPLATE_ALTIVEC 0
1142
1143 #include "swscale_template.c"
1144
1145 #if COMPILE_ALTIVEC
1146 #undef RENAME
1147 #undef COMPILE_TEMPLATE_ALTIVEC
1148 #define COMPILE_TEMPLATE_ALTIVEC 1
1149 #define RENAME(a) a ## _altivec
1150 #include "ppc/swscale_template.c"
1151 #endif
1152
1153 #if ARCH_X86
1154
1155 //MMX versions
1156 #if COMPILE_MMX
1157 #undef RENAME
1158 #undef COMPILE_TEMPLATE_MMX
1159 #undef COMPILE_TEMPLATE_MMX2
1160 #undef COMPILE_TEMPLATE_AMD3DNOW
1161 #define COMPILE_TEMPLATE_MMX 1
1162 #define COMPILE_TEMPLATE_MMX2 0
1163 #define COMPILE_TEMPLATE_AMD3DNOW 0
1164 #define RENAME(a) a ## _MMX
1165 #include "x86/swscale_template.c"
1166 #endif
1167
1168 //MMX2 versions
1169 #if COMPILE_MMX2
1170 #undef RENAME
1171 #undef COMPILE_TEMPLATE_MMX
1172 #undef COMPILE_TEMPLATE_MMX2
1173 #undef COMPILE_TEMPLATE_AMD3DNOW
1174 #define COMPILE_TEMPLATE_MMX 1
1175 #define COMPILE_TEMPLATE_MMX2 1
1176 #define COMPILE_TEMPLATE_AMD3DNOW 0
1177 #define RENAME(a) a ## _MMX2
1178 #include "x86/swscale_template.c"
1179 #endif
1180
1181 //3DNOW versions
1182 #if COMPILE_3DNOW
1183 #undef RENAME
1184 #undef COMPILE_TEMPLATE_MMX
1185 #undef COMPILE_TEMPLATE_MMX2
1186 #undef COMPILE_TEMPLATE_AMD3DNOW
1187 #define COMPILE_TEMPLATE_MMX 1
1188 #define COMPILE_TEMPLATE_MMX2 0
1189 #define COMPILE_TEMPLATE_AMD3DNOW 1
1190 #define RENAME(a) a ## _3DNow
1191 #include "x86/swscale_template.c"
1192 #endif
1193
1194 #endif //ARCH_X86
1195
1196 SwsFunc ff_getSwsFunc(SwsContext *c)
1197 {
1198 sws_init_swScale_c(c);
1199
1200 #if CONFIG_RUNTIME_CPUDETECT
1201 int flags = c->flags;
1202
1203 #if ARCH_X86
1204 // ordered per speed fastest first
1205 if (flags & SWS_CPU_CAPS_MMX2) {
1206 sws_init_swScale_MMX2(c);
1207 return swScale_MMX2;
1208 } else if (flags & SWS_CPU_CAPS_3DNOW) {
1209 sws_init_swScale_3DNow(c);
1210 return swScale_3DNow;
1211 } else if (flags & SWS_CPU_CAPS_MMX) {
1212 sws_init_swScale_MMX(c);
1213 return swScale_MMX;
1214 }
1215
1216 #else
1217 #if COMPILE_ALTIVEC
1218 if (flags & SWS_CPU_CAPS_ALTIVEC) {
1219 sws_init_swScale_altivec(c);
1220 return swScale_altivec;
1221 }
1222 #endif
1223 #endif /* ARCH_X86 */
1224 #else //CONFIG_RUNTIME_CPUDETECT
1225 #if COMPILE_TEMPLATE_MMX2
1226 sws_init_swScale_MMX2(c);
1227 return swScale_MMX2;
1228 #elif COMPILE_TEMPLATE_AMD3DNOW
1229 sws_init_swScale_3DNow(c);
1230 return swScale_3DNow;
1231 #elif COMPILE_TEMPLATE_MMX
1232 sws_init_swScale_MMX(c);
1233 return swScale_MMX;
1234 #elif COMPILE_TEMPLATE_ALTIVEC
1235 sws_init_swScale_altivec(c);
1236 return swScale_altivec;
1237 #endif
1238 #endif //!CONFIG_RUNTIME_CPUDETECT
1239
1240 return swScale_c;
1241 }
1242
1243 static void copyPlane(const uint8_t *src, int srcStride,
1244 int srcSliceY, int srcSliceH, int width,
1245 uint8_t *dst, int dstStride)
1246 {
1247 dst += dstStride * srcSliceY;
1248 if (dstStride == srcStride && srcStride > 0) {
1249 memcpy(dst, src, srcSliceH * dstStride);
1250 } else {
1251 int i;
1252 for (i=0; i<srcSliceH; i++) {
1253 memcpy(dst, src, width);
1254 src += srcStride;
1255 dst += dstStride;
1256 }
1257 }
1258 }
1259
1260 static int planarToNv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1261 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1262 {
1263 uint8_t *dst = dstParam[1] + dstStride[1]*srcSliceY/2;
1264
1265 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
1266 dstParam[0], dstStride[0]);
1267
1268 if (c->dstFormat == PIX_FMT_NV12)
1269 interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);
1270 else
1271 interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);
1272
1273 return srcSliceH;
1274 }
1275
1276 static int planarToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1277 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1278 {
1279 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1280
1281 yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
1282
1283 return srcSliceH;
1284 }
1285
1286 static int planarToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1287 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1288 {
1289 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1290
1291 yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
1292
1293 return srcSliceH;
1294 }
1295
1296 static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1297 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1298 {
1299 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1300
1301 yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
1302
1303 return srcSliceH;
1304 }
1305
1306 static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1307 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1308 {
1309 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1310
1311 yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
1312
1313 return srcSliceH;
1314 }
1315
1316 static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1317 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1318 {
1319 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1320 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
1321 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
1322
1323 yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1324
1325 if (dstParam[3])
1326 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1327
1328 return srcSliceH;
1329 }
1330
1331 static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1332 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1333 {
1334 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1335 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
1336 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
1337
1338 yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1339
1340 return srcSliceH;
1341 }
1342
1343 static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1344 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1345 {
1346 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1347 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
1348 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
1349
1350 uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1351
1352 if (dstParam[3])
1353 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1354
1355 return srcSliceH;
1356 }
1357
1358 static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1359 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1360 {
1361 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1362 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
1363 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
1364
1365 uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1366
1367 return srcSliceH;
1368 }
1369
1370 static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
1371 {
1372 long i;
1373 for (i=0; i<num_pixels; i++)
1374 ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | (src[(i<<1)+1] << 24);
1375 }
1376
1377 static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
1378 {
1379 long i;
1380
1381 for (i=0; i<num_pixels; i++)
1382 ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | src[(i<<1)+1];
1383 }
1384
1385 static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
1386 {
1387 long i;
1388
1389 for (i=0; i<num_pixels; i++) {
1390 //FIXME slow?
1391 dst[0]= palette[src[i<<1]*4+0];
1392 dst[1]= palette[src[i<<1]*4+1];
1393 dst[2]= palette[src[i<<1]*4+2];
1394 dst+= 3;
1395 }
1396 }
1397
1398 static int palToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1399 int srcSliceH, uint8_t* dst[], int dstStride[])
1400 {
1401 const enum PixelFormat srcFormat= c->srcFormat;
1402 const enum PixelFormat dstFormat= c->dstFormat;
1403 void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels,
1404 const uint8_t *palette)=NULL;
1405 int i;
1406 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1407 const uint8_t *srcPtr= src[0];
1408
1409 if (srcFormat == PIX_FMT_Y400A) {
1410 switch (dstFormat) {
1411 case PIX_FMT_RGB32 : conv = gray8aToPacked32; break;
1412 case PIX_FMT_BGR32 : conv = gray8aToPacked32; break;
1413 case PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
1414 case PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
1415 case PIX_FMT_RGB24 : conv = gray8aToPacked24; break;
1416 case PIX_FMT_BGR24 : conv = gray8aToPacked24; break;
1417 }
1418 } else if (usePal(srcFormat)) {
1419 switch (dstFormat) {
1420 case PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
1421 case PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
1422 case PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
1423 case PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
1424 case PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
1425 case PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
1426 }
1427 }
1428
1429 if (!conv)
1430 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1431 sws_format_name(srcFormat), sws_format_name(dstFormat));
1432 else {
1433 for (i=0; i<srcSliceH; i++) {
1434 conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
1435 srcPtr+= srcStride[0];
1436 dstPtr+= dstStride[0];
1437 }
1438 }
1439
1440 return srcSliceH;
1441 }
1442
1443 #define isRGBA32(x) ( \
1444 (x) == PIX_FMT_ARGB \
1445 || (x) == PIX_FMT_RGBA \
1446 || (x) == PIX_FMT_BGRA \
1447 || (x) == PIX_FMT_ABGR \
1448 )
1449
1450 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1451 static int rgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1452 int srcSliceH, uint8_t* dst[], int dstStride[])
1453 {
1454 const enum PixelFormat srcFormat= c->srcFormat;
1455 const enum PixelFormat dstFormat= c->dstFormat;
1456 const int srcBpp= (c->srcFormatBpp + 7) >> 3;
1457 const int dstBpp= (c->dstFormatBpp + 7) >> 3;
1458 const int srcId= c->srcFormatBpp >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
1459 const int dstId= c->dstFormatBpp >> 2;
1460 void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
1461
1462 #define CONV_IS(src, dst) (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst)
1463
1464 if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {
1465 if ( CONV_IS(ABGR, RGBA)
1466 || CONV_IS(ARGB, BGRA)
1467 || CONV_IS(BGRA, ARGB)
1468 || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;
1469 else if (CONV_IS(ABGR, ARGB)
1470 || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;
1471 else if (CONV_IS(ABGR, BGRA)
1472 || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;
1473 else if (CONV_IS(BGRA, RGBA)
1474 || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;
1475 else if (CONV_IS(BGRA, ABGR)
1476 || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;
1477 } else
1478 /* BGR -> BGR */
1479 if ( (isBGRinInt(srcFormat) && isBGRinInt(dstFormat))
1480 || (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
1481 switch(srcId | (dstId<<4)) {
1482 case 0x34: conv= rgb16to15; break;
1483 case 0x36: conv= rgb24to15; break;
1484 case 0x38: conv= rgb32to15; break;
1485 case 0x43: conv= rgb15to16; break;
1486 case 0x46: conv= rgb24to16; break;
1487 case 0x48: conv= rgb32to16; break;
1488 case 0x63: conv= rgb15to24; break;
1489 case 0x64: conv= rgb16to24; break;
1490 case 0x68: conv= rgb32to24; break;
1491 case 0x83: conv= rgb15to32; break;
1492 case 0x84: conv= rgb16to32; break;
1493 case 0x86: conv= rgb24to32; break;
1494 }
1495 } else if ( (isBGRinInt(srcFormat) && isRGBinInt(dstFormat))
1496 || (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
1497 switch(srcId | (dstId<<4)) {
1498 case 0x33: conv= rgb15tobgr15; break;
1499 case 0x34: conv= rgb16tobgr15; break;
1500 case 0x36: conv= rgb24tobgr15; break;
1501 case 0x38: conv= rgb32tobgr15; break;
1502 case 0x43: conv= rgb15tobgr16; break;
1503 case 0x44: conv= rgb16tobgr16; break;
1504 case 0x46: conv= rgb24tobgr16; break;
1505 case 0x48: conv= rgb32tobgr16; break;
1506 case 0x63: conv= rgb15tobgr24; break;
1507 case 0x64: conv= rgb16tobgr24; break;
1508 case 0x66: conv= rgb24tobgr24; break;
1509 case 0x68: conv= rgb32tobgr24; break;
1510 case 0x83: conv= rgb15tobgr32; break;
1511 case 0x84: conv= rgb16tobgr32; break;
1512 case 0x86: conv= rgb24tobgr32; break;
1513 }
1514 }
1515
1516 if (!conv) {
1517 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1518 sws_format_name(srcFormat), sws_format_name(dstFormat));
1519 } else {
1520 const uint8_t *srcPtr= src[0];
1521 uint8_t *dstPtr= dst[0];
1522 if ((srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1) && !isRGBA32(dstFormat))
1523 srcPtr += ALT32_CORR;
1524
1525 if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) && !isRGBA32(srcFormat))
1526 dstPtr += ALT32_CORR;
1527
1528 if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)
1529 conv(srcPtr, dstPtr + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1530 else {
1531 int i;
1532 dstPtr += dstStride[0]*srcSliceY;
1533
1534 for (i=0; i<srcSliceH; i++) {
1535 conv(srcPtr, dstPtr, c->srcW*srcBpp);
1536 srcPtr+= srcStride[0];
1537 dstPtr+= dstStride[0];
1538 }
1539 }
1540 }
1541 return srcSliceH;
1542 }
1543
1544 static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1545 int srcSliceH, uint8_t* dst[], int dstStride[])
1546 {
1547 rgb24toyv12(
1548 src[0],
1549 dst[0]+ srcSliceY *dstStride[0],
1550 dst[1]+(srcSliceY>>1)*dstStride[1],
1551 dst[2]+(srcSliceY>>1)*dstStride[2],
1552 c->srcW, srcSliceH,
1553 dstStride[0], dstStride[1], srcStride[0]);
1554 if (dst[3])
1555 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1556 return srcSliceH;
1557 }
1558
1559 static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1560 int srcSliceH, uint8_t* dst[], int dstStride[])
1561 {
1562 copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
1563 dst[0], dstStride[0]);
1564
1565 planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
1566 srcSliceH >> 2, srcStride[1], dstStride[1]);
1567 planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
1568 srcSliceH >> 2, srcStride[2], dstStride[2]);
1569 if (dst[3])
1570 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1571 return srcSliceH;
1572 }
1573
1574 /* unscaled copy like stuff (assumes nearly identical formats) */
1575 static int packedCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1576 int srcSliceH, uint8_t* dst[], int dstStride[])
1577 {
1578 if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
1579 memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
1580 else {
1581 int i;
1582 const uint8_t *srcPtr= src[0];
1583 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1584 int length=0;
1585
1586 /* universal length finder */
1587 while(length+c->srcW <= FFABS(dstStride[0])
1588 && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
1589 assert(length!=0);
1590
1591 for (i=0; i<srcSliceH; i++) {
1592 memcpy(dstPtr, srcPtr, length);
1593 srcPtr+= srcStride[0];
1594 dstPtr+= dstStride[0];
1595 }
1596 }
1597 return srcSliceH;
1598 }
1599
1600 static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1601 int srcSliceH, uint8_t* dst[], int dstStride[])
1602 {
1603 int plane, i, j;
1604 for (plane=0; plane<4; plane++) {
1605 int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
1606 int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
1607 int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
1608 const uint8_t *srcPtr= src[plane];
1609 uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
1610
1611 if (!dst[plane]) continue;
1612 // ignore palette for GRAY8
1613 if (plane == 1 && !dst[2]) continue;
1614 if (!src[plane] || (plane == 1 && !src[2])) {
1615 if(is16BPS(c->dstFormat))
1616 length*=2;
1617 fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);
1618 } else {
1619 if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {
1620 if (!isBE(c->srcFormat)) srcPtr++;
1621 for (i=0; i<height; i++) {
1622 for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
1623 srcPtr+= srcStride[plane];
1624 dstPtr+= dstStride[plane];
1625 }
1626 } else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {
1627 for (i=0; i<height; i++) {
1628 for (j=0; j<length; j++) {
1629 dstPtr[ j<<1 ] = srcPtr[j];
1630 dstPtr[(j<<1)+1] = srcPtr[j];
1631 }
1632 srcPtr+= srcStride[plane];
1633 dstPtr+= dstStride[plane];
1634 }
1635 } else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)
1636 && isBE(c->srcFormat) != isBE(c->dstFormat)) {
1637
1638 for (i=0; i<height; i++) {
1639 for (j=0; j<length; j++)
1640 ((uint16_t*)dstPtr)[j] = av_bswap16(((const uint16_t*)srcPtr)[j]);
1641 srcPtr+= srcStride[plane];
1642 dstPtr+= dstStride[plane];
1643 }
1644 } else if (dstStride[plane] == srcStride[plane] &&
1645 srcStride[plane] > 0 && srcStride[plane] == length) {
1646 memcpy(dst[plane] + dstStride[plane]*y, src[plane],
1647 height*dstStride[plane]);
1648 } else {
1649 if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
1650 length*=2;
1651 for (i=0; i<height; i++) {
1652 memcpy(dstPtr, srcPtr, length);
1653 srcPtr+= srcStride[plane];
1654 dstPtr+= dstStride[plane];
1655 }
1656 }
1657 }
1658 }
1659 return srcSliceH;
1660 }
1661
1662 int ff_hardcodedcpuflags(void)
1663 {
1664 int flags = 0;
1665 #if COMPILE_TEMPLATE_MMX2
1666 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
1667 #elif COMPILE_TEMPLATE_AMD3DNOW
1668 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
1669 #elif COMPILE_TEMPLATE_MMX
1670 flags |= SWS_CPU_CAPS_MMX;
1671 #elif COMPILE_TEMPLATE_ALTIVEC
1672 flags |= SWS_CPU_CAPS_ALTIVEC;
1673 #elif ARCH_BFIN
1674 flags |= SWS_CPU_CAPS_BFIN;
1675 #endif
1676 return flags;
1677 }
1678
1679 void ff_get_unscaled_swscale(SwsContext *c)
1680 {
1681 const enum PixelFormat srcFormat = c->srcFormat;
1682 const enum PixelFormat dstFormat = c->dstFormat;
1683 const int flags = c->flags;
1684 const int dstH = c->dstH;
1685 int needsDither;
1686
1687 needsDither= isAnyRGB(dstFormat)
1688 && c->dstFormatBpp < 24
1689 && (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
1690
1691 /* yv12_to_nv12 */
1692 if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {
1693 c->swScale= planarToNv12Wrapper;
1694 }
1695 /* yuv2bgr */
1696 if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && isAnyRGB(dstFormat)
1697 && !(flags & SWS_ACCURATE_RND) && !(dstH&1)) {
1698 c->swScale= ff_yuv2rgb_get_func_ptr(c);
1699 }
1700
1701 if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) {
1702 c->swScale= yvu9ToYv12Wrapper;
1703 }
1704
1705 /* bgr24toYV12 */
1706 if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))
1707 c->swScale= bgr24ToYv12Wrapper;
1708
1709 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
1710 if ( isAnyRGB(srcFormat)
1711 && isAnyRGB(dstFormat)
1712 && srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
1713 && srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
1714 && srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
1715 && srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
1716 && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
1717 && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
1718 && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
1719 && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE
1720 && srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE
1721 && srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE
1722 && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
1723 c->swScale= rgbToRgbWrapper;
1724
1725 if ((usePal(srcFormat) && (
1726 dstFormat == PIX_FMT_RGB32 ||
1727 dstFormat == PIX_FMT_RGB32_1 ||
1728 dstFormat == PIX_FMT_RGB24 ||
1729 dstFormat == PIX_FMT_BGR32 ||
1730 dstFormat == PIX_FMT_BGR32_1 ||
1731 dstFormat == PIX_FMT_BGR24)))
1732 c->swScale= palToRgbWrapper;
1733
1734 if (srcFormat == PIX_FMT_YUV422P) {
1735 if (dstFormat == PIX_FMT_YUYV422)
1736 c->swScale= yuv422pToYuy2Wrapper;
1737 else if (dstFormat == PIX_FMT_UYVY422)
1738 c->swScale= yuv422pToUyvyWrapper;
1739 }
1740
1741 /* LQ converters if -sws 0 or -sws 4*/
1742 if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
1743 /* yv12_to_yuy2 */
1744 if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) {
1745 if (dstFormat == PIX_FMT_YUYV422)
1746 c->swScale= planarToYuy2Wrapper;
1747 else if (dstFormat == PIX_FMT_UYVY422)
1748 c->swScale= planarToUyvyWrapper;
1749 }
1750 }
1751 if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
1752 c->swScale= yuyvToYuv420Wrapper;
1753 if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
1754 c->swScale= uyvyToYuv420Wrapper;
1755 if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
1756 c->swScale= yuyvToYuv422Wrapper;
1757 if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
1758 c->swScale= uyvyToYuv422Wrapper;
1759
1760 #if COMPILE_ALTIVEC
1761 if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
1762 !(c->flags & SWS_BITEXACT) &&
1763 srcFormat == PIX_FMT_YUV420P) {
1764 // unscaled YV12 -> packed YUV, we want speed
1765 if (dstFormat == PIX_FMT_YUYV422)
1766 c->swScale= yv12toyuy2_unscaled_altivec;
1767 else if (dstFormat == PIX_FMT_UYVY422)
1768 c->swScale= yv12touyvy_unscaled_altivec;
1769 }
1770 #endif
1771
1772 /* simple copy */
1773 if ( srcFormat == dstFormat
1774 || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)
1775 || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)
1776 || (isPlanarYUV(srcFormat) && isGray(dstFormat))
1777 || (isPlanarYUV(dstFormat) && isGray(srcFormat))
1778 || (isGray(dstFormat) && isGray(srcFormat))
1779 || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)
1780 && c->chrDstHSubSample == c->chrSrcHSubSample
1781 && c->chrDstVSubSample == c->chrSrcVSubSample
1782 && dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21
1783 && srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21))
1784 {
1785 if (isPacked(c->srcFormat))
1786 c->swScale= packedCopyWrapper;
1787 else /* Planar YUV or gray */
1788 c->swScale= planarCopyWrapper;
1789 }
1790 #if ARCH_BFIN
1791 if (flags & SWS_CPU_CAPS_BFIN)
1792 ff_bfin_get_unscaled_swscale (c);
1793 #endif
1794 }
1795
1796 static void reset_ptr(const uint8_t* src[], int format)
1797 {
1798 if(!isALPHA(format))
1799 src[3]=NULL;
1800 if(!isPlanarYUV(format)) {
1801 src[3]=src[2]=NULL;
1802
1803 if (!usePal(format))
1804 src[1]= NULL;
1805 }
1806 }
1807
1808 static int check_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt,
1809 const int linesizes[4])
1810 {
1811 const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
1812 int i;
1813
1814 for (i = 0; i < 4; i++) {
1815 int plane = desc->comp[i].plane;
1816 if (!data[plane] || !linesizes[plane])
1817 return 0;
1818 }
1819
1820 return 1;
1821 }
1822
1823 /**
1824 * swscale wrapper, so we don't need to export the SwsContext.
1825 * Assumes planar YUV to be in YUV order instead of YVU.
1826 */
1827 int sws_scale(SwsContext *c, const uint8_t* const src[], const int srcStride[], int srcSliceY,
1828 int srcSliceH, uint8_t* const dst[], const int dstStride[])
1829 {
1830 int i;
1831 const uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};
1832 uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};
1833
1834 // do not mess up sliceDir if we have a "trailing" 0-size slice
1835 if (srcSliceH == 0)
1836 return 0;
1837
1838 if (!check_image_pointers(src, c->srcFormat, srcStride)) {
1839 av_log(c, AV_LOG_ERROR, "bad src image pointers\n");
1840 return 0;
1841 }
1842 if (!check_image_pointers(dst, c->dstFormat, dstStride)) {
1843 av_log(c, AV_LOG_ERROR, "bad dst image pointers\n");
1844 return 0;
1845 }
1846
1847 if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
1848 av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
1849 return 0;
1850 }
1851 if (c->sliceDir == 0) {
1852 if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
1853 }
1854
1855 if (usePal(c->srcFormat)) {
1856 for (i=0; i<256; i++) {
1857 int p, r, g, b,y,u,v;
1858 if(c->srcFormat == PIX_FMT_PAL8) {
1859 p=((const uint32_t*)(src[1]))[i];
1860 r= (p>>16)&0xFF;
1861 g= (p>> 8)&0xFF;
1862 b= p &0xFF;
1863 } else if(c->srcFormat == PIX_FMT_RGB8) {
1864 r= (i>>5 )*36;
1865 g= ((i>>2)&7)*36;
1866 b= (i&3 )*85;
1867 } else if(c->srcFormat == PIX_FMT_BGR8) {
1868 b= (i>>6 )*85;
1869 g= ((i>>3)&7)*36;
1870 r= (i&7 )*36;
1871 } else if(c->srcFormat == PIX_FMT_RGB4_BYTE) {
1872 r= (i>>3 )*255;
1873 g= ((i>>1)&3)*85;
1874 b= (i&1 )*255;
1875 } else if(c->srcFormat == PIX_FMT_GRAY8 || c->srcFormat == PIX_FMT_Y400A) {
1876 r = g = b = i;
1877 } else {
1878 assert(c->srcFormat == PIX_FMT_BGR4_BYTE);
1879 b= (i>>3 )*255;
1880 g= ((i>>1)&3)*85;
1881 r= (i&1 )*255;
1882 }
1883 y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
1884 u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
1885 v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
1886 c->pal_yuv[i]= y + (u<<8) + (v<<16);
1887
1888 switch(c->dstFormat) {
1889 case PIX_FMT_BGR32:
1890 #if !HAVE_BIGENDIAN
1891 case PIX_FMT_RGB24:
1892 #endif
1893 c->pal_rgb[i]= r + (g<<8) + (b<<16);
1894 break;
1895 case PIX_FMT_BGR32_1:
1896 #if HAVE_BIGENDIAN
1897 case PIX_FMT_BGR24:
1898 #endif
1899 c->pal_rgb[i]= (r + (g<<8) + (b<<16)) << 8;
1900 break;
1901 case PIX_FMT_RGB32_1:
1902 #if HAVE_BIGENDIAN
1903 case PIX_FMT_RGB24:
1904 #endif
1905 c->pal_rgb[i]= (b + (g<<8) + (r<<16)) << 8;
1906 break;
1907 case PIX_FMT_RGB32:
1908 #if !HAVE_BIGENDIAN
1909 case PIX_FMT_BGR24:
1910 #endif
1911 default:
1912 c->pal_rgb[i]= b + (g<<8) + (r<<16);
1913 }
1914 }
1915 }
1916
1917 // copy strides, so they can safely be modified
1918 if (c->sliceDir == 1) {
1919 // slices go from top to bottom
1920 int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};
1921 int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};
1922
1923 reset_ptr(src2, c->srcFormat);
1924 reset_ptr((const uint8_t**)dst2, c->dstFormat);
1925
1926 /* reset slice direction at end of frame */
1927 if (srcSliceY + srcSliceH == c->srcH)
1928 c->sliceDir = 0;
1929
1930 return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);
1931 } else {
1932 // slices go from bottom to top => we flip the image internally
1933 int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]};
1934 int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]};
1935
1936 src2[0] += (srcSliceH-1)*srcStride[0];
1937 if (!usePal(c->srcFormat))
1938 src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
1939 src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
1940 src2[3] += (srcSliceH-1)*srcStride[3];
1941 dst2[0] += ( c->dstH -1)*dstStride[0];
1942 dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];
1943 dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];
1944 dst2[3] += ( c->dstH -1)*dstStride[3];
1945
1946 reset_ptr(src2, c->srcFormat);
1947 reset_ptr((const uint8_t**)dst2, c->dstFormat);
1948
1949 /* reset slice direction at end of frame */
1950 if (!srcSliceY)
1951 c->sliceDir = 0;
1952
1953 return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
1954 }
1955 }
1956
1957 #if LIBSWSCALE_VERSION_MAJOR < 1
1958 int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[], int srcSliceY,
1959 int srcSliceH, uint8_t* dst[], int dstStride[])
1960 {
1961 return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
1962 }
1963 #endif
1964
1965 /* Convert the palette to the same packed 32-bit format as the palette */
1966 void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
1967 {
1968 long i;
1969
1970 for (i=0; i<num_pixels; i++)
1971 ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
1972 }
1973
1974 /* Palette format: ABCD -> dst format: ABC */
1975 void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
1976 {
1977 long i;
1978
1979 for (i=0; i<num_pixels; i++) {
1980 //FIXME slow?
1981 dst[0]= palette[src[i]*4+0];
1982 dst[1]= palette[src[i]*4+1];
1983 dst[2]= palette[src[i]*4+2];
1984 dst+= 3;
1985 }
1986 }