Fix compilation on powerpc with --disable-altivec
[libav.git] / libswscale / swscale.c
1 /*
2 * Copyright (C) 2001-2003 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 modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (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
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * 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 * the C code (not assembly, mmx, ...) of this file can be used
21 * under the LGPL license too
22 */
23
24 /*
25 supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8
26 supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
27 {BGR,RGB}{1,4,8,15,16} support dithering
28
29 unscaled special converters (YV12=I420=IYUV, Y800=Y8)
30 YV12 -> {BGR,RGB}{1,4,8,12,15,16,24,32}
31 x -> x
32 YUV9 -> YV12
33 YUV9/YV12 -> Y800
34 Y800 -> YUV9/YV12
35 BGR24 -> BGR32 & RGB24 -> RGB32
36 BGR32 -> BGR24 & RGB32 -> RGB24
37 BGR15 -> BGR16
38 */
39
40 /*
41 tested special converters (most are tested actually, but I did not write it down ...)
42 YV12 -> BGR16
43 YV12 -> YV12
44 BGR15 -> BGR16
45 BGR16 -> BGR16
46 YVU9 -> YV12
47
48 untested special converters
49 YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be OK)
50 YV12/I420 -> YV12/I420
51 YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
52 BGR24 -> BGR32 & RGB24 -> RGB32
53 BGR32 -> BGR24 & RGB32 -> RGB24
54 BGR24 -> YV12
55 */
56
57 #include <inttypes.h>
58 #include <string.h>
59 #include <math.h>
60 #include <stdio.h>
61 #include "config.h"
62 #include <assert.h>
63 #include "swscale.h"
64 #include "swscale_internal.h"
65 #include "rgb2rgb.h"
66 #include "libavutil/intreadwrite.h"
67 #include "libavutil/x86_cpu.h"
68 #include "libavutil/avutil.h"
69 #include "libavutil/bswap.h"
70 #include "libavutil/pixdesc.h"
71
72 #undef MOVNTQ
73 #undef PAVGB
74
75 //#undef HAVE_MMX2
76 //#define HAVE_AMD3DNOW
77 //#undef HAVE_MMX
78 //#undef ARCH_X86
79 #define DITHER1XBPP
80
81 #define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit
82
83 #ifdef M_PI
84 #define PI M_PI
85 #else
86 #define PI 3.14159265358979323846
87 #endif
88
89 #define isPacked(x) ( \
90 (x)==PIX_FMT_PAL8 \
91 || (x)==PIX_FMT_YUYV422 \
92 || (x)==PIX_FMT_UYVY422 \
93 || isAnyRGB(x) \
94 )
95
96 #define RGB2YUV_SHIFT 15
97 #define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
98 #define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
99 #define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
100 #define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
101 #define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
102 #define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
103 #define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
104 #define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
105 #define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
106
107 static const double rgb2yuv_table[8][9]={
108 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
109 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
110 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
111 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
112 {0.59 , 0.11 , 0.30 , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
113 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
114 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //SMPTE 170M
115 {0.701 , 0.087 , 0.212 , -0.384, 0.5 -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
116 };
117
118 /*
119 NOTES
120 Special versions: fast Y 1:1 scaling (no interpolation in y direction)
121
122 TODO
123 more intelligent misalignment avoidance for the horizontal scaler
124 write special vertical cubic upscale version
125 optimize C code (YV12 / minmax)
126 add support for packed pixel YUV input & output
127 add support for Y8 output
128 optimize BGR24 & BGR32
129 add BGR4 output support
130 write special BGR->BGR scaler
131 */
132
133 #if ARCH_X86 && CONFIG_GPL
134 DECLARE_ASM_CONST(8, uint64_t, bF8)= 0xF8F8F8F8F8F8F8F8LL;
135 DECLARE_ASM_CONST(8, uint64_t, bFC)= 0xFCFCFCFCFCFCFCFCLL;
136 DECLARE_ASM_CONST(8, uint64_t, w10)= 0x0010001000100010LL;
137 DECLARE_ASM_CONST(8, uint64_t, w02)= 0x0002000200020002LL;
138 DECLARE_ASM_CONST(8, uint64_t, bm00001111)=0x00000000FFFFFFFFLL;
139 DECLARE_ASM_CONST(8, uint64_t, bm00000111)=0x0000000000FFFFFFLL;
140 DECLARE_ASM_CONST(8, uint64_t, bm11111000)=0xFFFFFFFFFF000000LL;
141 DECLARE_ASM_CONST(8, uint64_t, bm01010101)=0x00FF00FF00FF00FFLL;
142
143 const DECLARE_ALIGNED(8, uint64_t, ff_dither4)[2] = {
144 0x0103010301030103LL,
145 0x0200020002000200LL,};
146
147 const DECLARE_ALIGNED(8, uint64_t, ff_dither8)[2] = {
148 0x0602060206020602LL,
149 0x0004000400040004LL,};
150
151 DECLARE_ASM_CONST(8, uint64_t, b16Mask)= 0x001F001F001F001FLL;
152 DECLARE_ASM_CONST(8, uint64_t, g16Mask)= 0x07E007E007E007E0LL;
153 DECLARE_ASM_CONST(8, uint64_t, r16Mask)= 0xF800F800F800F800LL;
154 DECLARE_ASM_CONST(8, uint64_t, b15Mask)= 0x001F001F001F001FLL;
155 DECLARE_ASM_CONST(8, uint64_t, g15Mask)= 0x03E003E003E003E0LL;
156 DECLARE_ASM_CONST(8, uint64_t, r15Mask)= 0x7C007C007C007C00LL;
157
158 DECLARE_ALIGNED(8, const uint64_t, ff_M24A) = 0x00FF0000FF0000FFLL;
159 DECLARE_ALIGNED(8, const uint64_t, ff_M24B) = 0xFF0000FF0000FF00LL;
160 DECLARE_ALIGNED(8, const uint64_t, ff_M24C) = 0x0000FF0000FF0000LL;
161
162 #ifdef FAST_BGR2YV12
163 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000000210041000DULL;
164 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000FFEEFFDC0038ULL;
165 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00000038FFD2FFF8ULL;
166 #else
167 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000020E540830C8BULL;
168 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000ED0FDAC23831ULL;
169 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00003831D0E6F6EAULL;
170 #endif /* FAST_BGR2YV12 */
171 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset) = 0x1010101010101010ULL;
172 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;
173 DECLARE_ALIGNED(8, const uint64_t, ff_w1111) = 0x0001000100010001ULL;
174
175 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY1Coeff) = 0x0C88000040870C88ULL;
176 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY2Coeff) = 0x20DE4087000020DEULL;
177 DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY1Coeff) = 0x20DE0000408720DEULL;
178 DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY2Coeff) = 0x0C88408700000C88ULL;
179 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toYOffset) = 0x0008400000084000ULL;
180
181 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUV)[2][4] = {
182 {0x38380000DAC83838ULL, 0xECFFDAC80000ECFFULL, 0xF6E40000D0E3F6E4ULL, 0x3838D0E300003838ULL},
183 {0xECFF0000DAC8ECFFULL, 0x3838DAC800003838ULL, 0x38380000D0E33838ULL, 0xF6E4D0E30000F6E4ULL},
184 };
185
186 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUVOffset)= 0x0040400000404000ULL;
187
188 #endif /* ARCH_X86 && CONFIG_GPL */
189
190 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_4)[2][8]={
191 { 1, 3, 1, 3, 1, 3, 1, 3, },
192 { 2, 0, 2, 0, 2, 0, 2, 0, },
193 };
194
195 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_8)[2][8]={
196 { 6, 2, 6, 2, 6, 2, 6, 2, },
197 { 0, 4, 0, 4, 0, 4, 0, 4, },
198 };
199
200 DECLARE_ALIGNED(8, const uint8_t, dither_4x4_16)[4][8]={
201 { 8, 4, 11, 7, 8, 4, 11, 7, },
202 { 2, 14, 1, 13, 2, 14, 1, 13, },
203 { 10, 6, 9, 5, 10, 6, 9, 5, },
204 { 0, 12, 3, 15, 0, 12, 3, 15, },
205 };
206
207 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_32)[8][8]={
208 { 17, 9, 23, 15, 16, 8, 22, 14, },
209 { 5, 29, 3, 27, 4, 28, 2, 26, },
210 { 21, 13, 19, 11, 20, 12, 18, 10, },
211 { 0, 24, 6, 30, 1, 25, 7, 31, },
212 { 16, 8, 22, 14, 17, 9, 23, 15, },
213 { 4, 28, 2, 26, 5, 29, 3, 27, },
214 { 20, 12, 18, 10, 21, 13, 19, 11, },
215 { 1, 25, 7, 31, 0, 24, 6, 30, },
216 };
217
218 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_73)[8][8]={
219 { 0, 55, 14, 68, 3, 58, 17, 72, },
220 { 37, 18, 50, 32, 40, 22, 54, 35, },
221 { 9, 64, 5, 59, 13, 67, 8, 63, },
222 { 46, 27, 41, 23, 49, 31, 44, 26, },
223 { 2, 57, 16, 71, 1, 56, 15, 70, },
224 { 39, 21, 52, 34, 38, 19, 51, 33, },
225 { 11, 66, 7, 62, 10, 65, 6, 60, },
226 { 48, 30, 43, 25, 47, 29, 42, 24, },
227 };
228
229 #if 1
230 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={
231 {117, 62, 158, 103, 113, 58, 155, 100, },
232 { 34, 199, 21, 186, 31, 196, 17, 182, },
233 {144, 89, 131, 76, 141, 86, 127, 72, },
234 { 0, 165, 41, 206, 10, 175, 52, 217, },
235 {110, 55, 151, 96, 120, 65, 162, 107, },
236 { 28, 193, 14, 179, 38, 203, 24, 189, },
237 {138, 83, 124, 69, 148, 93, 134, 79, },
238 { 7, 172, 48, 213, 3, 168, 45, 210, },
239 };
240 #elif 1
241 // tries to correct a gamma of 1.5
242 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={
243 { 0, 143, 18, 200, 2, 156, 25, 215, },
244 { 78, 28, 125, 64, 89, 36, 138, 74, },
245 { 10, 180, 3, 161, 16, 195, 8, 175, },
246 {109, 51, 93, 38, 121, 60, 105, 47, },
247 { 1, 152, 23, 210, 0, 147, 20, 205, },
248 { 85, 33, 134, 71, 81, 30, 130, 67, },
249 { 14, 190, 6, 171, 12, 185, 5, 166, },
250 {117, 57, 101, 44, 113, 54, 97, 41, },
251 };
252 #elif 1
253 // tries to correct a gamma of 2.0
254 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={
255 { 0, 124, 8, 193, 0, 140, 12, 213, },
256 { 55, 14, 104, 42, 66, 19, 119, 52, },
257 { 3, 168, 1, 145, 6, 187, 3, 162, },
258 { 86, 31, 70, 21, 99, 39, 82, 28, },
259 { 0, 134, 11, 206, 0, 129, 9, 200, },
260 { 62, 17, 114, 48, 58, 16, 109, 45, },
261 { 5, 181, 2, 157, 4, 175, 1, 151, },
262 { 95, 36, 78, 26, 90, 34, 74, 24, },
263 };
264 #else
265 // tries to correct a gamma of 2.5
266 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220)[8][8]={
267 { 0, 107, 3, 187, 0, 125, 6, 212, },
268 { 39, 7, 86, 28, 49, 11, 102, 36, },
269 { 1, 158, 0, 131, 3, 180, 1, 151, },
270 { 68, 19, 52, 12, 81, 25, 64, 17, },
271 { 0, 119, 5, 203, 0, 113, 4, 195, },
272 { 45, 9, 96, 33, 42, 8, 91, 30, },
273 { 2, 172, 1, 144, 2, 165, 0, 137, },
274 { 77, 23, 60, 15, 72, 21, 56, 14, },
275 };
276 #endif
277
278 static av_always_inline void yuv2yuvX16inC_template(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
279 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
280 const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest,
281 int dstW, int chrDstW, int big_endian)
282 {
283 //FIXME Optimize (just quickly written not optimized..)
284 int i;
285
286 for (i = 0; i < dstW; i++) {
287 int val = 1 << 10;
288 int j;
289
290 for (j = 0; j < lumFilterSize; j++)
291 val += lumSrc[j][i] * lumFilter[j];
292
293 if (big_endian) {
294 AV_WB16(&dest[i], av_clip_uint16(val >> 11));
295 } else {
296 AV_WL16(&dest[i], av_clip_uint16(val >> 11));
297 }
298 }
299
300 if (uDest) {
301 for (i = 0; i < chrDstW; i++) {
302 int u = 1 << 10;
303 int v = 1 << 10;
304 int j;
305
306 for (j = 0; j < chrFilterSize; j++) {
307 u += chrSrc[j][i ] * chrFilter[j];
308 v += chrSrc[j][i + VOFW] * chrFilter[j];
309 }
310
311 if (big_endian) {
312 AV_WB16(&uDest[i], av_clip_uint16(u >> 11));
313 AV_WB16(&vDest[i], av_clip_uint16(v >> 11));
314 } else {
315 AV_WL16(&uDest[i], av_clip_uint16(u >> 11));
316 AV_WL16(&vDest[i], av_clip_uint16(v >> 11));
317 }
318 }
319 }
320
321 if (CONFIG_SWSCALE_ALPHA && aDest) {
322 for (i = 0; i < dstW; i++) {
323 int val = 1 << 10;
324 int j;
325
326 for (j = 0; j < lumFilterSize; j++)
327 val += alpSrc[j][i] * lumFilter[j];
328
329 if (big_endian) {
330 AV_WB16(&aDest[i], av_clip_uint16(val >> 11));
331 } else {
332 AV_WL16(&aDest[i], av_clip_uint16(val >> 11));
333 }
334 }
335 }
336 }
337
338 static inline void yuv2yuvX16inC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
339 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
340 const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest, int dstW, int chrDstW,
341 enum PixelFormat dstFormat)
342 {
343 if (isBE(dstFormat)) {
344 yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,
345 chrFilter, chrSrc, chrFilterSize,
346 alpSrc,
347 dest, uDest, vDest, aDest,
348 dstW, chrDstW, 1);
349 } else {
350 yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,
351 chrFilter, chrSrc, chrFilterSize,
352 alpSrc,
353 dest, uDest, vDest, aDest,
354 dstW, chrDstW, 0);
355 }
356 }
357
358 static inline void yuv2yuvXinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
359 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
360 const int16_t **alpSrc, uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, int dstW, int chrDstW)
361 {
362 //FIXME Optimize (just quickly written not optimized..)
363 int i;
364 for (i=0; i<dstW; i++) {
365 int val=1<<18;
366 int j;
367 for (j=0; j<lumFilterSize; j++)
368 val += lumSrc[j][i] * lumFilter[j];
369
370 dest[i]= av_clip_uint8(val>>19);
371 }
372
373 if (uDest)
374 for (i=0; i<chrDstW; i++) {
375 int u=1<<18;
376 int v=1<<18;
377 int j;
378 for (j=0; j<chrFilterSize; j++) {
379 u += chrSrc[j][i] * chrFilter[j];
380 v += chrSrc[j][i + VOFW] * chrFilter[j];
381 }
382
383 uDest[i]= av_clip_uint8(u>>19);
384 vDest[i]= av_clip_uint8(v>>19);
385 }
386
387 if (CONFIG_SWSCALE_ALPHA && aDest)
388 for (i=0; i<dstW; i++) {
389 int val=1<<18;
390 int j;
391 for (j=0; j<lumFilterSize; j++)
392 val += alpSrc[j][i] * lumFilter[j];
393
394 aDest[i]= av_clip_uint8(val>>19);
395 }
396
397 }
398
399 static inline void yuv2nv12XinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
400 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
401 uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
402 {
403 //FIXME Optimize (just quickly written not optimized..)
404 int i;
405 for (i=0; i<dstW; i++) {
406 int val=1<<18;
407 int j;
408 for (j=0; j<lumFilterSize; j++)
409 val += lumSrc[j][i] * lumFilter[j];
410
411 dest[i]= av_clip_uint8(val>>19);
412 }
413
414 if (!uDest)
415 return;
416
417 if (dstFormat == PIX_FMT_NV12)
418 for (i=0; i<chrDstW; i++) {
419 int u=1<<18;
420 int v=1<<18;
421 int j;
422 for (j=0; j<chrFilterSize; j++) {
423 u += chrSrc[j][i] * chrFilter[j];
424 v += chrSrc[j][i + VOFW] * chrFilter[j];
425 }
426
427 uDest[2*i]= av_clip_uint8(u>>19);
428 uDest[2*i+1]= av_clip_uint8(v>>19);
429 }
430 else
431 for (i=0; i<chrDstW; i++) {
432 int u=1<<18;
433 int v=1<<18;
434 int j;
435 for (j=0; j<chrFilterSize; j++) {
436 u += chrSrc[j][i] * chrFilter[j];
437 v += chrSrc[j][i + VOFW] * chrFilter[j];
438 }
439
440 uDest[2*i]= av_clip_uint8(v>>19);
441 uDest[2*i+1]= av_clip_uint8(u>>19);
442 }
443 }
444
445 #define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \
446 for (i=0; i<(dstW>>1); i++) {\
447 int j;\
448 int Y1 = 1<<18;\
449 int Y2 = 1<<18;\
450 int U = 1<<18;\
451 int V = 1<<18;\
452 int av_unused A1, A2;\
453 type av_unused *r, *b, *g;\
454 const int i2= 2*i;\
455 \
456 for (j=0; j<lumFilterSize; j++) {\
457 Y1 += lumSrc[j][i2] * lumFilter[j];\
458 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
459 }\
460 for (j=0; j<chrFilterSize; j++) {\
461 U += chrSrc[j][i] * chrFilter[j];\
462 V += chrSrc[j][i+VOFW] * chrFilter[j];\
463 }\
464 Y1>>=19;\
465 Y2>>=19;\
466 U >>=19;\
467 V >>=19;\
468 if (alpha) {\
469 A1 = 1<<18;\
470 A2 = 1<<18;\
471 for (j=0; j<lumFilterSize; j++) {\
472 A1 += alpSrc[j][i2 ] * lumFilter[j];\
473 A2 += alpSrc[j][i2+1] * lumFilter[j];\
474 }\
475 A1>>=19;\
476 A2>>=19;\
477 }
478
479 #define YSCALE_YUV_2_PACKEDX_C(type,alpha) \
480 YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\
481 if ((Y1|Y2|U|V)&256) {\
482 if (Y1>255) Y1=255; \
483 else if (Y1<0)Y1=0; \
484 if (Y2>255) Y2=255; \
485 else if (Y2<0)Y2=0; \
486 if (U>255) U=255; \
487 else if (U<0) U=0; \
488 if (V>255) V=255; \
489 else if (V<0) V=0; \
490 }\
491 if (alpha && ((A1|A2)&256)) {\
492 A1=av_clip_uint8(A1);\
493 A2=av_clip_uint8(A2);\
494 }
495
496 #define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \
497 for (i=0; i<dstW; i++) {\
498 int j;\
499 int Y = 0;\
500 int U = -128<<19;\
501 int V = -128<<19;\
502 int av_unused A;\
503 int R,G,B;\
504 \
505 for (j=0; j<lumFilterSize; j++) {\
506 Y += lumSrc[j][i ] * lumFilter[j];\
507 }\
508 for (j=0; j<chrFilterSize; j++) {\
509 U += chrSrc[j][i ] * chrFilter[j];\
510 V += chrSrc[j][i+VOFW] * chrFilter[j];\
511 }\
512 Y >>=10;\
513 U >>=10;\
514 V >>=10;\
515 if (alpha) {\
516 A = rnd;\
517 for (j=0; j<lumFilterSize; j++)\
518 A += alpSrc[j][i ] * lumFilter[j];\
519 A >>=19;\
520 if (A&256)\
521 A = av_clip_uint8(A);\
522 }
523
524 #define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \
525 YSCALE_YUV_2_PACKEDX_FULL_C(rnd>>3,alpha)\
526 Y-= c->yuv2rgb_y_offset;\
527 Y*= c->yuv2rgb_y_coeff;\
528 Y+= rnd;\
529 R= Y + V*c->yuv2rgb_v2r_coeff;\
530 G= Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;\
531 B= Y + U*c->yuv2rgb_u2b_coeff;\
532 if ((R|G|B)&(0xC0000000)) {\
533 if (R>=(256<<22)) R=(256<<22)-1; \
534 else if (R<0)R=0; \
535 if (G>=(256<<22)) G=(256<<22)-1; \
536 else if (G<0)G=0; \
537 if (B>=(256<<22)) B=(256<<22)-1; \
538 else if (B<0)B=0; \
539 }
540
541 #define YSCALE_YUV_2_GRAY16_C \
542 for (i=0; i<(dstW>>1); i++) {\
543 int j;\
544 int Y1 = 1<<18;\
545 int Y2 = 1<<18;\
546 int U = 1<<18;\
547 int V = 1<<18;\
548 \
549 const int i2= 2*i;\
550 \
551 for (j=0; j<lumFilterSize; j++) {\
552 Y1 += lumSrc[j][i2] * lumFilter[j];\
553 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
554 }\
555 Y1>>=11;\
556 Y2>>=11;\
557 if ((Y1|Y2|U|V)&65536) {\
558 if (Y1>65535) Y1=65535; \
559 else if (Y1<0)Y1=0; \
560 if (Y2>65535) Y2=65535; \
561 else if (Y2<0)Y2=0; \
562 }
563
564 #define YSCALE_YUV_2_RGBX_C(type,alpha) \
565 YSCALE_YUV_2_PACKEDX_C(type,alpha) /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\
566 r = (type *)c->table_rV[V]; \
567 g = (type *)(c->table_gU[U] + c->table_gV[V]); \
568 b = (type *)c->table_bU[U];
569
570 #define YSCALE_YUV_2_PACKED2_C(type,alpha) \
571 for (i=0; i<(dstW>>1); i++) { \
572 const int i2= 2*i; \
573 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19; \
574 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19; \
575 int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19; \
576 int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19; \
577 type av_unused *r, *b, *g; \
578 int av_unused A1, A2; \
579 if (alpha) {\
580 A1= (abuf0[i2 ]*yalpha1+abuf1[i2 ]*yalpha)>>19; \
581 A2= (abuf0[i2+1]*yalpha1+abuf1[i2+1]*yalpha)>>19; \
582 }
583
584 #define YSCALE_YUV_2_GRAY16_2_C \
585 for (i=0; i<(dstW>>1); i++) { \
586 const int i2= 2*i; \
587 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>11; \
588 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11;
589
590 #define YSCALE_YUV_2_RGB2_C(type,alpha) \
591 YSCALE_YUV_2_PACKED2_C(type,alpha)\
592 r = (type *)c->table_rV[V];\
593 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
594 b = (type *)c->table_bU[U];
595
596 #define YSCALE_YUV_2_PACKED1_C(type,alpha) \
597 for (i=0; i<(dstW>>1); i++) {\
598 const int i2= 2*i;\
599 int Y1= buf0[i2 ]>>7;\
600 int Y2= buf0[i2+1]>>7;\
601 int U= (uvbuf1[i ])>>7;\
602 int V= (uvbuf1[i+VOFW])>>7;\
603 type av_unused *r, *b, *g;\
604 int av_unused A1, A2;\
605 if (alpha) {\
606 A1= abuf0[i2 ]>>7;\
607 A2= abuf0[i2+1]>>7;\
608 }
609
610 #define YSCALE_YUV_2_GRAY16_1_C \
611 for (i=0; i<(dstW>>1); i++) {\
612 const int i2= 2*i;\
613 int Y1= buf0[i2 ]<<1;\
614 int Y2= buf0[i2+1]<<1;
615
616 #define YSCALE_YUV_2_RGB1_C(type,alpha) \
617 YSCALE_YUV_2_PACKED1_C(type,alpha)\
618 r = (type *)c->table_rV[V];\
619 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
620 b = (type *)c->table_bU[U];
621
622 #define YSCALE_YUV_2_PACKED1B_C(type,alpha) \
623 for (i=0; i<(dstW>>1); i++) {\
624 const int i2= 2*i;\
625 int Y1= buf0[i2 ]>>7;\
626 int Y2= buf0[i2+1]>>7;\
627 int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
628 int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
629 type av_unused *r, *b, *g;\
630 int av_unused A1, A2;\
631 if (alpha) {\
632 A1= abuf0[i2 ]>>7;\
633 A2= abuf0[i2+1]>>7;\
634 }
635
636 #define YSCALE_YUV_2_RGB1B_C(type,alpha) \
637 YSCALE_YUV_2_PACKED1B_C(type,alpha)\
638 r = (type *)c->table_rV[V];\
639 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
640 b = (type *)c->table_bU[U];
641
642 #define YSCALE_YUV_2_MONO2_C \
643 const uint8_t * const d128=dither_8x8_220[y&7];\
644 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
645 for (i=0; i<dstW-7; i+=8) {\
646 int acc;\
647 acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
648 acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
649 acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
650 acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
651 acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
652 acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
653 acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
654 acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
655 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
656 dest++;\
657 }
658
659 #define YSCALE_YUV_2_MONOX_C \
660 const uint8_t * const d128=dither_8x8_220[y&7];\
661 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
662 int acc=0;\
663 for (i=0; i<dstW-1; i+=2) {\
664 int j;\
665 int Y1=1<<18;\
666 int Y2=1<<18;\
667 \
668 for (j=0; j<lumFilterSize; j++) {\
669 Y1 += lumSrc[j][i] * lumFilter[j];\
670 Y2 += lumSrc[j][i+1] * lumFilter[j];\
671 }\
672 Y1>>=19;\
673 Y2>>=19;\
674 if ((Y1|Y2)&256) {\
675 if (Y1>255) Y1=255;\
676 else if (Y1<0)Y1=0;\
677 if (Y2>255) Y2=255;\
678 else if (Y2<0)Y2=0;\
679 }\
680 acc+= acc + g[Y1+d128[(i+0)&7]];\
681 acc+= acc + g[Y2+d128[(i+1)&7]];\
682 if ((i&7)==6) {\
683 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
684 dest++;\
685 }\
686 }
687
688 #define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\
689 switch(c->dstFormat) {\
690 case PIX_FMT_RGB48BE:\
691 case PIX_FMT_RGB48LE:\
692 func(uint8_t,0)\
693 ((uint8_t*)dest)[ 0]= r[Y1];\
694 ((uint8_t*)dest)[ 1]= r[Y1];\
695 ((uint8_t*)dest)[ 2]= g[Y1];\
696 ((uint8_t*)dest)[ 3]= g[Y1];\
697 ((uint8_t*)dest)[ 4]= b[Y1];\
698 ((uint8_t*)dest)[ 5]= b[Y1];\
699 ((uint8_t*)dest)[ 6]= r[Y2];\
700 ((uint8_t*)dest)[ 7]= r[Y2];\
701 ((uint8_t*)dest)[ 8]= g[Y2];\
702 ((uint8_t*)dest)[ 9]= g[Y2];\
703 ((uint8_t*)dest)[10]= b[Y2];\
704 ((uint8_t*)dest)[11]= b[Y2];\
705 dest+=12;\
706 }\
707 break;\
708 case PIX_FMT_RGBA:\
709 case PIX_FMT_BGRA:\
710 if (CONFIG_SMALL) {\
711 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
712 func(uint32_t,needAlpha)\
713 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? (A1<<24) : 0);\
714 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? (A2<<24) : 0);\
715 }\
716 } else {\
717 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\
718 func(uint32_t,1)\
719 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (A1<<24);\
720 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (A2<<24);\
721 }\
722 } else {\
723 func(uint32_t,0)\
724 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
725 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
726 }\
727 }\
728 }\
729 break;\
730 case PIX_FMT_ARGB:\
731 case PIX_FMT_ABGR:\
732 if (CONFIG_SMALL) {\
733 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
734 func(uint32_t,needAlpha)\
735 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? A1 : 0);\
736 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? A2 : 0);\
737 }\
738 } else {\
739 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\
740 func(uint32_t,1)\
741 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + A1;\
742 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + A2;\
743 }\
744 } else {\
745 func(uint32_t,0)\
746 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
747 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
748 }\
749 }\
750 } \
751 break;\
752 case PIX_FMT_RGB24:\
753 func(uint8_t,0)\
754 ((uint8_t*)dest)[0]= r[Y1];\
755 ((uint8_t*)dest)[1]= g[Y1];\
756 ((uint8_t*)dest)[2]= b[Y1];\
757 ((uint8_t*)dest)[3]= r[Y2];\
758 ((uint8_t*)dest)[4]= g[Y2];\
759 ((uint8_t*)dest)[5]= b[Y2];\
760 dest+=6;\
761 }\
762 break;\
763 case PIX_FMT_BGR24:\
764 func(uint8_t,0)\
765 ((uint8_t*)dest)[0]= b[Y1];\
766 ((uint8_t*)dest)[1]= g[Y1];\
767 ((uint8_t*)dest)[2]= r[Y1];\
768 ((uint8_t*)dest)[3]= b[Y2];\
769 ((uint8_t*)dest)[4]= g[Y2];\
770 ((uint8_t*)dest)[5]= r[Y2];\
771 dest+=6;\
772 }\
773 break;\
774 case PIX_FMT_RGB565BE:\
775 case PIX_FMT_RGB565LE:\
776 case PIX_FMT_BGR565BE:\
777 case PIX_FMT_BGR565LE:\
778 {\
779 const int dr1= dither_2x2_8[y&1 ][0];\
780 const int dg1= dither_2x2_4[y&1 ][0];\
781 const int db1= dither_2x2_8[(y&1)^1][0];\
782 const int dr2= dither_2x2_8[y&1 ][1];\
783 const int dg2= dither_2x2_4[y&1 ][1];\
784 const int db2= dither_2x2_8[(y&1)^1][1];\
785 func(uint16_t,0)\
786 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
787 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
788 }\
789 }\
790 break;\
791 case PIX_FMT_RGB555BE:\
792 case PIX_FMT_RGB555LE:\
793 case PIX_FMT_BGR555BE:\
794 case PIX_FMT_BGR555LE:\
795 {\
796 const int dr1= dither_2x2_8[y&1 ][0];\
797 const int dg1= dither_2x2_8[y&1 ][1];\
798 const int db1= dither_2x2_8[(y&1)^1][0];\
799 const int dr2= dither_2x2_8[y&1 ][1];\
800 const int dg2= dither_2x2_8[y&1 ][0];\
801 const int db2= dither_2x2_8[(y&1)^1][1];\
802 func(uint16_t,0)\
803 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
804 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
805 }\
806 }\
807 break;\
808 case PIX_FMT_RGB8:\
809 case PIX_FMT_BGR8:\
810 {\
811 const uint8_t * const d64= dither_8x8_73[y&7];\
812 const uint8_t * const d32= dither_8x8_32[y&7];\
813 func(uint8_t,0)\
814 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
815 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
816 }\
817 }\
818 break;\
819 case PIX_FMT_RGB4:\
820 case PIX_FMT_BGR4:\
821 {\
822 const uint8_t * const d64= dither_8x8_73 [y&7];\
823 const uint8_t * const d128=dither_8x8_220[y&7];\
824 func(uint8_t,0)\
825 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
826 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
827 }\
828 }\
829 break;\
830 case PIX_FMT_RGB4_BYTE:\
831 case PIX_FMT_BGR4_BYTE:\
832 {\
833 const uint8_t * const d64= dither_8x8_73 [y&7];\
834 const uint8_t * const d128=dither_8x8_220[y&7];\
835 func(uint8_t,0)\
836 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
837 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
838 }\
839 }\
840 break;\
841 case PIX_FMT_MONOBLACK:\
842 case PIX_FMT_MONOWHITE:\
843 {\
844 func_monoblack\
845 }\
846 break;\
847 case PIX_FMT_YUYV422:\
848 func2\
849 ((uint8_t*)dest)[2*i2+0]= Y1;\
850 ((uint8_t*)dest)[2*i2+1]= U;\
851 ((uint8_t*)dest)[2*i2+2]= Y2;\
852 ((uint8_t*)dest)[2*i2+3]= V;\
853 } \
854 break;\
855 case PIX_FMT_UYVY422:\
856 func2\
857 ((uint8_t*)dest)[2*i2+0]= U;\
858 ((uint8_t*)dest)[2*i2+1]= Y1;\
859 ((uint8_t*)dest)[2*i2+2]= V;\
860 ((uint8_t*)dest)[2*i2+3]= Y2;\
861 } \
862 break;\
863 case PIX_FMT_GRAY16BE:\
864 func_g16\
865 ((uint8_t*)dest)[2*i2+0]= Y1>>8;\
866 ((uint8_t*)dest)[2*i2+1]= Y1;\
867 ((uint8_t*)dest)[2*i2+2]= Y2>>8;\
868 ((uint8_t*)dest)[2*i2+3]= Y2;\
869 } \
870 break;\
871 case PIX_FMT_GRAY16LE:\
872 func_g16\
873 ((uint8_t*)dest)[2*i2+0]= Y1;\
874 ((uint8_t*)dest)[2*i2+1]= Y1>>8;\
875 ((uint8_t*)dest)[2*i2+2]= Y2;\
876 ((uint8_t*)dest)[2*i2+3]= Y2>>8;\
877 } \
878 break;\
879 }
880
881 static inline void yuv2packedXinC(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
882 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
883 const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
884 {
885 int i;
886 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)
887 }
888
889 static inline void yuv2rgbXinC_full(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
890 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
891 const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
892 {
893 int i;
894 int step= c->dstFormatBpp/8;
895 int aidx= 3;
896
897 switch(c->dstFormat) {
898 case PIX_FMT_ARGB:
899 dest++;
900 aidx= 0;
901 case PIX_FMT_RGB24:
902 aidx--;
903 case PIX_FMT_RGBA:
904 if (CONFIG_SMALL) {
905 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
906 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
907 dest[aidx]= needAlpha ? A : 255;
908 dest[0]= R>>22;
909 dest[1]= G>>22;
910 dest[2]= B>>22;
911 dest+= step;
912 }
913 } else {
914 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
915 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
916 dest[aidx]= A;
917 dest[0]= R>>22;
918 dest[1]= G>>22;
919 dest[2]= B>>22;
920 dest+= step;
921 }
922 } else {
923 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
924 dest[aidx]= 255;
925 dest[0]= R>>22;
926 dest[1]= G>>22;
927 dest[2]= B>>22;
928 dest+= step;
929 }
930 }
931 }
932 break;
933 case PIX_FMT_ABGR:
934 dest++;
935 aidx= 0;
936 case PIX_FMT_BGR24:
937 aidx--;
938 case PIX_FMT_BGRA:
939 if (CONFIG_SMALL) {
940 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
941 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
942 dest[aidx]= needAlpha ? A : 255;
943 dest[0]= B>>22;
944 dest[1]= G>>22;
945 dest[2]= R>>22;
946 dest+= step;
947 }
948 } else {
949 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
950 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
951 dest[aidx]= A;
952 dest[0]= B>>22;
953 dest[1]= G>>22;
954 dest[2]= R>>22;
955 dest+= step;
956 }
957 } else {
958 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
959 dest[aidx]= 255;
960 dest[0]= B>>22;
961 dest[1]= G>>22;
962 dest[2]= R>>22;
963 dest+= step;
964 }
965 }
966 }
967 break;
968 default:
969 assert(0);
970 }
971 }
972
973 static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val)
974 {
975 int i;
976 uint8_t *ptr = plane + stride*y;
977 for (i=0; i<height; i++) {
978 memset(ptr, val, width);
979 ptr += stride;
980 }
981 }
982
983 static inline void rgb48ToY(uint8_t *dst, const uint8_t *src, int width,
984 uint32_t *unused)
985 {
986 int i;
987 for (i = 0; i < width; i++) {
988 int r = src[i*6+0];
989 int g = src[i*6+2];
990 int b = src[i*6+4];
991
992 dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
993 }
994 }
995
996 static inline void rgb48ToUV(uint8_t *dstU, uint8_t *dstV,
997 const uint8_t *src1, const uint8_t *src2,
998 int width, uint32_t *unused)
999 {
1000 int i;
1001 assert(src1==src2);
1002 for (i = 0; i < width; i++) {
1003 int r = src1[6*i + 0];
1004 int g = src1[6*i + 2];
1005 int b = src1[6*i + 4];
1006
1007 dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
1008 dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
1009 }
1010 }
1011
1012 static inline void rgb48ToUV_half(uint8_t *dstU, uint8_t *dstV,
1013 const uint8_t *src1, const uint8_t *src2,
1014 int width, uint32_t *unused)
1015 {
1016 int i;
1017 assert(src1==src2);
1018 for (i = 0; i < width; i++) {
1019 int r= src1[12*i + 0] + src1[12*i + 6];
1020 int g= src1[12*i + 2] + src1[12*i + 8];
1021 int b= src1[12*i + 4] + src1[12*i + 10];
1022
1023 dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
1024 dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
1025 }
1026 }
1027
1028 #define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\
1029 static inline void name(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)\
1030 {\
1031 int i;\
1032 for (i=0; i<width; i++) {\
1033 int b= (((const type*)src)[i]>>shb)&maskb;\
1034 int g= (((const type*)src)[i]>>shg)&maskg;\
1035 int r= (((const type*)src)[i]>>shr)&maskr;\
1036 \
1037 dst[i]= (((RY)*r + (GY)*g + (BY)*b + (33<<((S)-1)))>>(S));\
1038 }\
1039 }
1040
1041 BGR2Y(uint32_t, bgr32ToY,16, 0, 0, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, RGB2YUV_SHIFT+8)
1042 BGR2Y(uint32_t, rgb32ToY, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, RGB2YUV_SHIFT+8)
1043 BGR2Y(uint16_t, bgr16ToY, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RY<<11, GY<<5, BY , RGB2YUV_SHIFT+8)
1044 BGR2Y(uint16_t, bgr15ToY, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY<<10, GY<<5, BY , RGB2YUV_SHIFT+7)
1045 BGR2Y(uint16_t, rgb16ToY, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY , GY<<5, BY<<11, RGB2YUV_SHIFT+8)
1046 BGR2Y(uint16_t, rgb15ToY, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY , GY<<5, BY<<10, RGB2YUV_SHIFT+7)
1047
1048 static inline void abgrToA(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1049 {
1050 int i;
1051 for (i=0; i<width; i++) {
1052 dst[i]= src[4*i];
1053 }
1054 }
1055
1056 #define BGR2UV(type, name, shr, shg, shb, maska, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S)\
1057 static inline void name(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1058 {\
1059 int i;\
1060 for (i=0; i<width; i++) {\
1061 int b= (((const type*)src)[i]&maskb)>>shb;\
1062 int g= (((const type*)src)[i]&maskg)>>shg;\
1063 int r= (((const type*)src)[i]&maskr)>>shr;\
1064 \
1065 dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<((S)-1)))>>(S);\
1066 dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\
1067 }\
1068 }\
1069 static inline void name ## _half(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1070 {\
1071 int i;\
1072 for (i=0; i<width; i++) {\
1073 int pix0= ((const type*)src)[2*i+0];\
1074 int pix1= ((const type*)src)[2*i+1];\
1075 int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\
1076 int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\
1077 int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\
1078 g&= maskg|(2*maskg);\
1079 \
1080 g>>=shg;\
1081 \
1082 dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<(S)))>>((S)+1);\
1083 dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<(S)))>>((S)+1);\
1084 }\
1085 }
1086
1087 BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0xFF000000, 0xFF0000, 0xFF00, 0x00FF, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
1088 BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0xFF000000, 0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
1089 BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RU<<11, GU<<5, BU , RV<<11, GV<<5, BV , RGB2YUV_SHIFT+8)
1090 BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RU<<10, GU<<5, BU , RV<<10, GV<<5, BV , RGB2YUV_SHIFT+7)
1091 BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RU , GU<<5, BU<<11, RV , GV<<5, BV<<11, RGB2YUV_SHIFT+8)
1092 BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RU , GU<<5, BU<<10, RV , GV<<5, BV<<10, RGB2YUV_SHIFT+7)
1093
1094 static inline void palToY(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)
1095 {
1096 int i;
1097 for (i=0; i<width; i++) {
1098 int d= src[i];
1099
1100 dst[i]= pal[d] & 0xFF;
1101 }
1102 }
1103
1104 static inline void palToUV(uint8_t *dstU, uint8_t *dstV,
1105 const uint8_t *src1, const uint8_t *src2,
1106 long width, uint32_t *pal)
1107 {
1108 int i;
1109 assert(src1 == src2);
1110 for (i=0; i<width; i++) {
1111 int p= pal[src1[i]];
1112
1113 dstU[i]= p>>8;
1114 dstV[i]= p>>16;
1115 }
1116 }
1117
1118 static inline void monowhite2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1119 {
1120 int i, j;
1121 for (i=0; i<width/8; i++) {
1122 int d= ~src[i];
1123 for(j=0; j<8; j++)
1124 dst[8*i+j]= ((d>>(7-j))&1)*255;
1125 }
1126 }
1127
1128 static inline void monoblack2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1129 {
1130 int i, j;
1131 for (i=0; i<width/8; i++) {
1132 int d= src[i];
1133 for(j=0; j<8; j++)
1134 dst[8*i+j]= ((d>>(7-j))&1)*255;
1135 }
1136 }
1137
1138 //Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
1139 //Plain C versions
1140 #if ((!HAVE_MMX || !CONFIG_GPL) && !HAVE_ALTIVEC) || CONFIG_RUNTIME_CPUDETECT
1141 #define COMPILE_C
1142 #endif
1143
1144 #if ARCH_PPC
1145 #if HAVE_ALTIVEC
1146 #define COMPILE_ALTIVEC
1147 #endif
1148 #endif //ARCH_PPC
1149
1150 #if ARCH_X86
1151
1152 #if ((HAVE_MMX && !HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1153 #define COMPILE_MMX
1154 #endif
1155
1156 #if (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1157 #define COMPILE_MMX2
1158 #endif
1159
1160 #if ((HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1161 #define COMPILE_3DNOW
1162 #endif
1163 #endif //ARCH_X86
1164
1165 #define COMPILE_TEMPLATE_MMX 0
1166 #define COMPILE_TEMPLATE_MMX2 0
1167 #define COMPILE_TEMPLATE_AMD3DNOW 0
1168 #define COMPILE_TEMPLATE_ALTIVEC 0
1169
1170 #ifdef COMPILE_C
1171 #define RENAME(a) a ## _C
1172 #include "swscale_template.c"
1173 #endif
1174
1175 #ifdef COMPILE_ALTIVEC
1176 #undef RENAME
1177 #undef COMPILE_TEMPLATE_ALTIVEC
1178 #define COMPILE_TEMPLATE_ALTIVEC 1
1179 #define RENAME(a) a ## _altivec
1180 #include "swscale_template.c"
1181 #endif
1182
1183 #if ARCH_X86
1184
1185 //MMX versions
1186 #ifdef COMPILE_MMX
1187 #undef RENAME
1188 #undef COMPILE_TEMPLATE_MMX
1189 #undef COMPILE_TEMPLATE_MMX2
1190 #undef COMPILE_TEMPLATE_AMD3DNOW
1191 #define COMPILE_TEMPLATE_MMX 1
1192 #define COMPILE_TEMPLATE_MMX2 0
1193 #define COMPILE_TEMPLATE_AMD3DNOW 0
1194 #define RENAME(a) a ## _MMX
1195 #include "swscale_template.c"
1196 #endif
1197
1198 //MMX2 versions
1199 #ifdef COMPILE_MMX2
1200 #undef RENAME
1201 #undef COMPILE_TEMPLATE_MMX
1202 #undef COMPILE_TEMPLATE_MMX2
1203 #undef COMPILE_TEMPLATE_AMD3DNOW
1204 #define COMPILE_TEMPLATE_MMX 1
1205 #define COMPILE_TEMPLATE_MMX2 1
1206 #define COMPILE_TEMPLATE_AMD3DNOW 0
1207 #define RENAME(a) a ## _MMX2
1208 #include "swscale_template.c"
1209 #endif
1210
1211 //3DNOW versions
1212 #ifdef COMPILE_3DNOW
1213 #undef RENAME
1214 #undef COMPILE_TEMPLATE_MMX
1215 #undef COMPILE_TEMPLATE_MMX2
1216 #undef COMPILE_TEMPLATE_AMD3DNOW
1217 #define COMPILE_TEMPLATE_MMX 1
1218 #define COMPILE_TEMPLATE_MMX2 0
1219 #define COMPILE_TEMPLATE_AMD3DNOW 1
1220 #define RENAME(a) a ## _3DNow
1221 #include "swscale_template.c"
1222 #endif
1223
1224 #endif //ARCH_X86
1225
1226 SwsFunc ff_getSwsFunc(SwsContext *c)
1227 {
1228 #if CONFIG_RUNTIME_CPUDETECT
1229 int flags = c->flags;
1230
1231 #if ARCH_X86 && CONFIG_GPL
1232 // ordered per speed fastest first
1233 if (flags & SWS_CPU_CAPS_MMX2) {
1234 sws_init_swScale_MMX2(c);
1235 return swScale_MMX2;
1236 } else if (flags & SWS_CPU_CAPS_3DNOW) {
1237 sws_init_swScale_3DNow(c);
1238 return swScale_3DNow;
1239 } else if (flags & SWS_CPU_CAPS_MMX) {
1240 sws_init_swScale_MMX(c);
1241 return swScale_MMX;
1242 } else {
1243 sws_init_swScale_C(c);
1244 return swScale_C;
1245 }
1246
1247 #else
1248 #if ARCH_PPC && COMPILE_ALTIVEC
1249 if (flags & SWS_CPU_CAPS_ALTIVEC) {
1250 sws_init_swScale_altivec(c);
1251 return swScale_altivec;
1252 } else {
1253 sws_init_swScale_C(c);
1254 return swScale_C;
1255 }
1256 #endif
1257 sws_init_swScale_C(c);
1258 return swScale_C;
1259 #endif /* ARCH_X86 && CONFIG_GPL */
1260 #else //CONFIG_RUNTIME_CPUDETECT
1261 #if COMPILE_TEMPLATE_MMX2
1262 sws_init_swScale_MMX2(c);
1263 return swScale_MMX2;
1264 #elif COMPILE_TEMPLATE_AMD3DNOW
1265 sws_init_swScale_3DNow(c);
1266 return swScale_3DNow;
1267 #elif COMPILE_TEMPLATE_MMX
1268 sws_init_swScale_MMX(c);
1269 return swScale_MMX;
1270 #elif COMPILE_TEMPLATE_ALTIVEC
1271 sws_init_swScale_altivec(c);
1272 return swScale_altivec;
1273 #else
1274 sws_init_swScale_C(c);
1275 return swScale_C;
1276 #endif
1277 #endif //!CONFIG_RUNTIME_CPUDETECT
1278 }
1279
1280 static int planarToNv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1281 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1282 {
1283 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1284 /* Copy Y plane */
1285 if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
1286 memcpy(dst, src[0], srcSliceH*dstStride[0]);
1287 else {
1288 int i;
1289 const uint8_t *srcPtr= src[0];
1290 uint8_t *dstPtr= dst;
1291 for (i=0; i<srcSliceH; i++) {
1292 memcpy(dstPtr, srcPtr, c->srcW);
1293 srcPtr+= srcStride[0];
1294 dstPtr+= dstStride[0];
1295 }
1296 }
1297 dst = dstParam[1] + dstStride[1]*srcSliceY/2;
1298 if (c->dstFormat == PIX_FMT_NV12)
1299 interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);
1300 else
1301 interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);
1302
1303 return srcSliceH;
1304 }
1305
1306 static int planarToYuy2Wrapper(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 yv12toyuy2(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 planarToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1317 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1318 {
1319 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1320
1321 yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
1322
1323 return srcSliceH;
1324 }
1325
1326 static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1327 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1328 {
1329 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1330
1331 yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
1332
1333 return srcSliceH;
1334 }
1335
1336 static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1337 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1338 {
1339 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1340
1341 yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
1342
1343 return srcSliceH;
1344 }
1345
1346 static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1347 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1348 {
1349 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1350 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
1351 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
1352
1353 yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1354
1355 if (dstParam[3])
1356 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1357
1358 return srcSliceH;
1359 }
1360
1361 static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1362 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1363 {
1364 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1365 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
1366 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
1367
1368 yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1369
1370 return srcSliceH;
1371 }
1372
1373 static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1374 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1375 {
1376 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1377 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
1378 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
1379
1380 uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1381
1382 if (dstParam[3])
1383 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1384
1385 return srcSliceH;
1386 }
1387
1388 static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1389 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1390 {
1391 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1392 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
1393 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
1394
1395 uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1396
1397 return srcSliceH;
1398 }
1399
1400 static int palToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1401 int srcSliceH, uint8_t* dst[], int dstStride[])
1402 {
1403 const enum PixelFormat srcFormat= c->srcFormat;
1404 const enum PixelFormat dstFormat= c->dstFormat;
1405 void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels,
1406 const uint8_t *palette)=NULL;
1407 int i;
1408 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1409 const uint8_t *srcPtr= src[0];
1410
1411 if (usePal(srcFormat)) {
1412 switch (dstFormat) {
1413 case PIX_FMT_RGB32 : conv = palette8topacked32; break;
1414 case PIX_FMT_BGR32 : conv = palette8topacked32; break;
1415 case PIX_FMT_BGR32_1: conv = palette8topacked32; break;
1416 case PIX_FMT_RGB32_1: conv = palette8topacked32; break;
1417 case PIX_FMT_RGB24 : conv = palette8topacked24; break;
1418 case PIX_FMT_BGR24 : conv = palette8topacked24; break;
1419 }
1420 }
1421
1422 if (!conv)
1423 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1424 sws_format_name(srcFormat), sws_format_name(dstFormat));
1425 else {
1426 for (i=0; i<srcSliceH; i++) {
1427 conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
1428 srcPtr+= srcStride[0];
1429 dstPtr+= dstStride[0];
1430 }
1431 }
1432
1433 return srcSliceH;
1434 }
1435
1436 #define isRGBA32(x) ( \
1437 (x) == PIX_FMT_ARGB \
1438 || (x) == PIX_FMT_RGBA \
1439 || (x) == PIX_FMT_BGRA \
1440 || (x) == PIX_FMT_ABGR \
1441 )
1442
1443 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
1444 static int rgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1445 int srcSliceH, uint8_t* dst[], int dstStride[])
1446 {
1447 const enum PixelFormat srcFormat= c->srcFormat;
1448 const enum PixelFormat dstFormat= c->dstFormat;
1449 const int srcBpp= (c->srcFormatBpp + 7) >> 3;
1450 const int dstBpp= (c->dstFormatBpp + 7) >> 3;
1451 const int srcId= c->srcFormatBpp >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
1452 const int dstId= c->dstFormatBpp >> 2;
1453 void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
1454
1455 #define CONV_IS(src, dst) (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst)
1456
1457 if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {
1458 if ( CONV_IS(ABGR, RGBA)
1459 || CONV_IS(ARGB, BGRA)
1460 || CONV_IS(BGRA, ARGB)
1461 || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;
1462 else if (CONV_IS(ABGR, ARGB)
1463 || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;
1464 else if (CONV_IS(ABGR, BGRA)
1465 || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;
1466 else if (CONV_IS(BGRA, RGBA)
1467 || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;
1468 else if (CONV_IS(BGRA, ABGR)
1469 || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;
1470 } else
1471 /* BGR -> BGR */
1472 if ( (isBGRinInt(srcFormat) && isBGRinInt(dstFormat))
1473 || (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
1474 switch(srcId | (dstId<<4)) {
1475 case 0x34: conv= rgb16to15; break;
1476 case 0x36: conv= rgb24to15; break;
1477 case 0x38: conv= rgb32to15; break;
1478 case 0x43: conv= rgb15to16; break;
1479 case 0x46: conv= rgb24to16; break;
1480 case 0x48: conv= rgb32to16; break;
1481 case 0x63: conv= rgb15to24; break;
1482 case 0x64: conv= rgb16to24; break;
1483 case 0x68: conv= rgb32to24; break;
1484 case 0x83: conv= rgb15to32; break;
1485 case 0x84: conv= rgb16to32; break;
1486 case 0x86: conv= rgb24to32; break;
1487 }
1488 } else if ( (isBGRinInt(srcFormat) && isRGBinInt(dstFormat))
1489 || (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
1490 switch(srcId | (dstId<<4)) {
1491 case 0x33: conv= rgb15tobgr15; break;
1492 case 0x34: conv= rgb16tobgr15; break;
1493 case 0x36: conv= rgb24tobgr15; break;
1494 case 0x38: conv= rgb32tobgr15; break;
1495 case 0x43: conv= rgb15tobgr16; break;
1496 case 0x44: conv= rgb16tobgr16; break;
1497 case 0x46: conv= rgb24tobgr16; break;
1498 case 0x48: conv= rgb32tobgr16; break;
1499 case 0x63: conv= rgb15tobgr24; break;
1500 case 0x64: conv= rgb16tobgr24; break;
1501 case 0x66: conv= rgb24tobgr24; break;
1502 case 0x68: conv= rgb32tobgr24; break;
1503 case 0x83: conv= rgb15tobgr32; break;
1504 case 0x84: conv= rgb16tobgr32; break;
1505 case 0x86: conv= rgb24tobgr32; break;
1506 }
1507 }
1508
1509 if (!conv) {
1510 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1511 sws_format_name(srcFormat), sws_format_name(dstFormat));
1512 } else {
1513 const uint8_t *srcPtr= src[0];
1514 uint8_t *dstPtr= dst[0];
1515 if ((srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1) && !isRGBA32(dstFormat))
1516 srcPtr += ALT32_CORR;
1517
1518 if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) && !isRGBA32(srcFormat))
1519 dstPtr += ALT32_CORR;
1520
1521 if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)
1522 conv(srcPtr, dstPtr + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1523 else {
1524 int i;
1525 dstPtr += dstStride[0]*srcSliceY;
1526
1527 for (i=0; i<srcSliceH; i++) {
1528 conv(srcPtr, dstPtr, c->srcW*srcBpp);
1529 srcPtr+= srcStride[0];
1530 dstPtr+= dstStride[0];
1531 }
1532 }
1533 }
1534 return srcSliceH;
1535 }
1536
1537 static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1538 int srcSliceH, uint8_t* dst[], int dstStride[])
1539 {
1540 rgb24toyv12(
1541 src[0],
1542 dst[0]+ srcSliceY *dstStride[0],
1543 dst[1]+(srcSliceY>>1)*dstStride[1],
1544 dst[2]+(srcSliceY>>1)*dstStride[2],
1545 c->srcW, srcSliceH,
1546 dstStride[0], dstStride[1], srcStride[0]);
1547 if (dst[3])
1548 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1549 return srcSliceH;
1550 }
1551
1552 static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1553 int srcSliceH, uint8_t* dst[], int dstStride[])
1554 {
1555 int i;
1556
1557 /* copy Y */
1558 if (srcStride[0]==dstStride[0] && srcStride[0] > 0)
1559 memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
1560 else {
1561 const uint8_t *srcPtr= src[0];
1562 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1563
1564 for (i=0; i<srcSliceH; i++) {
1565 memcpy(dstPtr, srcPtr, c->srcW);
1566 srcPtr+= srcStride[0];
1567 dstPtr+= dstStride[0];
1568 }
1569 }
1570
1571 if (c->dstFormat==PIX_FMT_YUV420P || c->dstFormat==PIX_FMT_YUVA420P) {
1572 planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
1573 srcSliceH >> 2, srcStride[1], dstStride[1]);
1574 planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
1575 srcSliceH >> 2, srcStride[2], dstStride[2]);
1576 } else {
1577 planar2x(src[1], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
1578 srcSliceH >> 2, srcStride[1], dstStride[2]);
1579 planar2x(src[2], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
1580 srcSliceH >> 2, srcStride[2], dstStride[1]);
1581 }
1582 if (dst[3])
1583 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1584 return srcSliceH;
1585 }
1586
1587 /* unscaled copy like stuff (assumes nearly identical formats) */
1588 static int packedCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1589 int srcSliceH, uint8_t* dst[], int dstStride[])
1590 {
1591 if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
1592 memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
1593 else {
1594 int i;
1595 const uint8_t *srcPtr= src[0];
1596 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1597 int length=0;
1598
1599 /* universal length finder */
1600 while(length+c->srcW <= FFABS(dstStride[0])
1601 && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
1602 assert(length!=0);
1603
1604 for (i=0; i<srcSliceH; i++) {
1605 memcpy(dstPtr, srcPtr, length);
1606 srcPtr+= srcStride[0];
1607 dstPtr+= dstStride[0];
1608 }
1609 }
1610 return srcSliceH;
1611 }
1612
1613 static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
1614 int srcSliceH, uint8_t* dst[], int dstStride[])
1615 {
1616 int plane, i, j;
1617 for (plane=0; plane<4; plane++) {
1618 int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
1619 int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
1620 int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
1621 const uint8_t *srcPtr= src[plane];
1622 uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
1623
1624 if (!dst[plane]) continue;
1625 // ignore palette for GRAY8
1626 if (plane == 1 && !dst[2]) continue;
1627 if (!src[plane] || (plane == 1 && !src[2])) {
1628 if(is16BPS(c->dstFormat))
1629 length*=2;
1630 fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);
1631 } else {
1632 if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {
1633 if (!isBE(c->srcFormat)) srcPtr++;
1634 for (i=0; i<height; i++) {
1635 for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
1636 srcPtr+= srcStride[plane];
1637 dstPtr+= dstStride[plane];
1638 }
1639 } else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {
1640 for (i=0; i<height; i++) {
1641 for (j=0; j<length; j++) {
1642 dstPtr[ j<<1 ] = srcPtr[j];
1643 dstPtr[(j<<1)+1] = srcPtr[j];
1644 }
1645 srcPtr+= srcStride[plane];
1646 dstPtr+= dstStride[plane];
1647 }
1648 } else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)
1649 && isBE(c->srcFormat) != isBE(c->dstFormat)) {
1650
1651 for (i=0; i<height; i++) {
1652 for (j=0; j<length; j++)
1653 ((uint16_t*)dstPtr)[j] = bswap_16(((const uint16_t*)srcPtr)[j]);
1654 srcPtr+= srcStride[plane];
1655 dstPtr+= dstStride[plane];
1656 }
1657 } else if (dstStride[plane]==srcStride[plane] && srcStride[plane] > 0)
1658 memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
1659 else {
1660 if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
1661 length*=2;
1662 for (i=0; i<height; i++) {
1663 memcpy(dstPtr, srcPtr, length);
1664 srcPtr+= srcStride[plane];
1665 dstPtr+= dstStride[plane];
1666 }
1667 }
1668 }
1669 }
1670 return srcSliceH;
1671 }
1672
1673 int ff_hardcodedcpuflags(void)
1674 {
1675 int flags = 0;
1676 #if COMPILE_TEMPLATE_MMX2
1677 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
1678 #elif COMPILE_TEMPLATE_AMD3DNOW
1679 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
1680 #elif COMPILE_TEMPLATE_MMX
1681 flags |= SWS_CPU_CAPS_MMX;
1682 #elif COMPILE_TEMPLATE_ALTIVEC
1683 flags |= SWS_CPU_CAPS_ALTIVEC;
1684 #elif ARCH_BFIN
1685 flags |= SWS_CPU_CAPS_BFIN;
1686 #endif
1687 return flags;
1688 }
1689
1690 void ff_get_unscaled_swscale(SwsContext *c)
1691 {
1692 const enum PixelFormat srcFormat = c->srcFormat;
1693 const enum PixelFormat dstFormat = c->dstFormat;
1694 const int flags = c->flags;
1695 const int dstH = c->dstH;
1696 int needsDither;
1697
1698 needsDither= isAnyRGB(dstFormat)
1699 && c->dstFormatBpp < 24
1700 && (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
1701
1702 /* yv12_to_nv12 */
1703 if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {
1704 c->swScale= planarToNv12Wrapper;
1705 }
1706 /* yuv2bgr */
1707 if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && isAnyRGB(dstFormat)
1708 && !(flags & SWS_ACCURATE_RND) && !(dstH&1)) {
1709 c->swScale= ff_yuv2rgb_get_func_ptr(c);
1710 }
1711
1712 if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) {
1713 c->swScale= yvu9ToYv12Wrapper;
1714 }
1715
1716 /* bgr24toYV12 */
1717 if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))
1718 c->swScale= bgr24ToYv12Wrapper;
1719
1720 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
1721 if ( isAnyRGB(srcFormat)
1722 && isAnyRGB(dstFormat)
1723 && srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
1724 && srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
1725 && srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
1726 && srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
1727 && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
1728 && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
1729 && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
1730 && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE
1731 && srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE
1732 && srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE
1733 && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
1734 c->swScale= rgbToRgbWrapper;
1735
1736 if ((usePal(srcFormat) && (
1737 dstFormat == PIX_FMT_RGB32 ||
1738 dstFormat == PIX_FMT_RGB32_1 ||
1739 dstFormat == PIX_FMT_RGB24 ||
1740 dstFormat == PIX_FMT_BGR32 ||
1741 dstFormat == PIX_FMT_BGR32_1 ||
1742 dstFormat == PIX_FMT_BGR24)))
1743 c->swScale= palToRgbWrapper;
1744
1745 if (srcFormat == PIX_FMT_YUV422P) {
1746 if (dstFormat == PIX_FMT_YUYV422)
1747 c->swScale= yuv422pToYuy2Wrapper;
1748 else if (dstFormat == PIX_FMT_UYVY422)
1749 c->swScale= yuv422pToUyvyWrapper;
1750 }
1751
1752 /* LQ converters if -sws 0 or -sws 4*/
1753 if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
1754 /* yv12_to_yuy2 */
1755 if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) {
1756 if (dstFormat == PIX_FMT_YUYV422)
1757 c->swScale= planarToYuy2Wrapper;
1758 else if (dstFormat == PIX_FMT_UYVY422)
1759 c->swScale= planarToUyvyWrapper;
1760 }
1761 }
1762 if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
1763 c->swScale= yuyvToYuv420Wrapper;
1764 if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
1765 c->swScale= uyvyToYuv420Wrapper;
1766 if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
1767 c->swScale= yuyvToYuv422Wrapper;
1768 if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
1769 c->swScale= uyvyToYuv422Wrapper;
1770
1771 #ifdef COMPILE_ALTIVEC
1772 if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
1773 !(c->flags & SWS_BITEXACT) &&
1774 srcFormat == PIX_FMT_YUV420P) {
1775 // unscaled YV12 -> packed YUV, we want speed
1776 if (dstFormat == PIX_FMT_YUYV422)
1777 c->swScale= yv12toyuy2_unscaled_altivec;
1778 else if (dstFormat == PIX_FMT_UYVY422)
1779 c->swScale= yv12touyvy_unscaled_altivec;
1780 }
1781 #endif
1782
1783 /* simple copy */
1784 if ( srcFormat == dstFormat
1785 || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)
1786 || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)
1787 || (isPlanarYUV(srcFormat) && isGray(dstFormat))
1788 || (isPlanarYUV(dstFormat) && isGray(srcFormat))
1789 || (isGray(dstFormat) && isGray(srcFormat))
1790 || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)
1791 && c->chrDstHSubSample == c->chrSrcHSubSample
1792 && c->chrDstVSubSample == c->chrSrcVSubSample
1793 && dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21
1794 && srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21))
1795 {
1796 if (isPacked(c->srcFormat))
1797 c->swScale= packedCopyWrapper;
1798 else /* Planar YUV or gray */
1799 c->swScale= planarCopyWrapper;
1800 }
1801 #if ARCH_BFIN
1802 if (flags & SWS_CPU_CAPS_BFIN)
1803 ff_bfin_get_unscaled_swscale (c);
1804 #endif
1805 }
1806
1807 static void reset_ptr(const uint8_t* src[], int format)
1808 {
1809 if(!isALPHA(format))
1810 src[3]=NULL;
1811 if(!isPlanarYUV(format)) {
1812 src[3]=src[2]=NULL;
1813
1814 if (!usePal(format))
1815 src[1]= NULL;
1816 }
1817 }
1818
1819 /**
1820 * swscale wrapper, so we don't need to export the SwsContext.
1821 * Assumes planar YUV to be in YUV order instead of YVU.
1822 */
1823 int sws_scale(SwsContext *c, const uint8_t* const src[], const int srcStride[], int srcSliceY,
1824 int srcSliceH, uint8_t* const dst[], const int dstStride[])
1825 {
1826 int i;
1827 const uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};
1828 uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};
1829
1830 // do not mess up sliceDir if we have a "trailing" 0-size slice
1831 if (srcSliceH == 0)
1832 return 0;
1833
1834 if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
1835 av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
1836 return 0;
1837 }
1838 if (c->sliceDir == 0) {
1839 if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
1840 }
1841
1842 if (usePal(c->srcFormat)) {
1843 for (i=0; i<256; i++) {
1844 int p, r, g, b,y,u,v;
1845 if(c->srcFormat == PIX_FMT_PAL8) {
1846 p=((const uint32_t*)(src[1]))[i];
1847 r= (p>>16)&0xFF;
1848 g= (p>> 8)&0xFF;
1849 b= p &0xFF;
1850 } else if(c->srcFormat == PIX_FMT_RGB8) {
1851 r= (i>>5 )*36;
1852 g= ((i>>2)&7)*36;
1853 b= (i&3 )*85;
1854 } else if(c->srcFormat == PIX_FMT_BGR8) {
1855 b= (i>>6 )*85;
1856 g= ((i>>3)&7)*36;
1857 r= (i&7 )*36;
1858 } else if(c->srcFormat == PIX_FMT_RGB4_BYTE) {
1859 r= (i>>3 )*255;
1860 g= ((i>>1)&3)*85;
1861 b= (i&1 )*255;
1862 } else if(c->srcFormat == PIX_FMT_GRAY8) {
1863 r = g = b = i;
1864 } else {
1865 assert(c->srcFormat == PIX_FMT_BGR4_BYTE);
1866 b= (i>>3 )*255;
1867 g= ((i>>1)&3)*85;
1868 r= (i&1 )*255;
1869 }
1870 y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
1871 u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
1872 v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
1873 c->pal_yuv[i]= y + (u<<8) + (v<<16);
1874
1875 switch(c->dstFormat) {
1876 case PIX_FMT_BGR32:
1877 #if !HAVE_BIGENDIAN
1878 case PIX_FMT_RGB24:
1879 #endif
1880 c->pal_rgb[i]= r + (g<<8) + (b<<16);
1881 break;
1882 case PIX_FMT_BGR32_1:
1883 #if HAVE_BIGENDIAN
1884 case PIX_FMT_BGR24:
1885 #endif
1886 c->pal_rgb[i]= (r + (g<<8) + (b<<16)) << 8;
1887 break;
1888 case PIX_FMT_RGB32_1:
1889 #if HAVE_BIGENDIAN
1890 case PIX_FMT_RGB24:
1891 #endif
1892 c->pal_rgb[i]= (b + (g<<8) + (r<<16)) << 8;
1893 break;
1894 case PIX_FMT_RGB32:
1895 #if !HAVE_BIGENDIAN
1896 case PIX_FMT_BGR24:
1897 #endif
1898 default:
1899 c->pal_rgb[i]= b + (g<<8) + (r<<16);
1900 }
1901 }
1902 }
1903
1904 // copy strides, so they can safely be modified
1905 if (c->sliceDir == 1) {
1906 // slices go from top to bottom
1907 int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};
1908 int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};
1909
1910 reset_ptr(src2, c->srcFormat);
1911 reset_ptr((const uint8_t**)dst2, c->dstFormat);
1912
1913 /* reset slice direction at end of frame */
1914 if (srcSliceY + srcSliceH == c->srcH)
1915 c->sliceDir = 0;
1916
1917 return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);
1918 } else {
1919 // slices go from bottom to top => we flip the image internally
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 src2[0] += (srcSliceH-1)*srcStride[0];
1924 if (!usePal(c->srcFormat))
1925 src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
1926 src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
1927 src2[3] += (srcSliceH-1)*srcStride[3];
1928 dst2[0] += ( c->dstH -1)*dstStride[0];
1929 dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];
1930 dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];
1931 dst2[3] += ( c->dstH -1)*dstStride[3];
1932
1933 reset_ptr(src2, c->srcFormat);
1934 reset_ptr((const uint8_t**)dst2, c->dstFormat);
1935
1936 /* reset slice direction at end of frame */
1937 if (!srcSliceY)
1938 c->sliceDir = 0;
1939
1940 return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
1941 }
1942 }
1943
1944 #if LIBSWSCALE_VERSION_MAJOR < 1
1945 int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[], int srcSliceY,
1946 int srcSliceH, uint8_t* dst[], int dstStride[])
1947 {
1948 return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
1949 }
1950 #endif