2 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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
20 * the C code (not assembly, mmx, ...) of this file can be used
21 * under the LGPL license too
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
29 unscaled special converters (YV12=I420=IYUV, Y800=Y8)
30 YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
35 BGR24 -> BGR32 & RGB24 -> RGB32
36 BGR32 -> BGR24 & RGB32 -> RGB24
41 tested special converters (most are tested actually, but I did not write it down ...)
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
57 #define _SVID_SOURCE //needed for MAP_ANONYMOUS
66 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
67 #define MAP_ANONYMOUS MAP_ANON
71 #define WIN32_LEAN_AND_MEAN
75 #include "swscale_internal.h"
77 #include "libavutil/intreadwrite.h"
78 #include "libavutil/x86_cpu.h"
79 #include "libavutil/bswap.h"
81 unsigned swscale_version(void)
83 return LIBSWSCALE_VERSION_INT;
90 //#define HAVE_AMD3DNOW
95 #define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit
97 #define RET 0xC3 //near return opcode for x86
102 #define PI 3.14159265358979323846
105 #define isSupportedIn(x) ( \
106 (x)==PIX_FMT_YUV420P \
107 || (x)==PIX_FMT_YUVA420P \
108 || (x)==PIX_FMT_YUYV422 \
109 || (x)==PIX_FMT_UYVY422 \
110 || (x)==PIX_FMT_RGB48BE \
111 || (x)==PIX_FMT_RGB48LE \
112 || (x)==PIX_FMT_RGB32 \
113 || (x)==PIX_FMT_RGB32_1 \
114 || (x)==PIX_FMT_BGR24 \
115 || (x)==PIX_FMT_BGR565 \
116 || (x)==PIX_FMT_BGR555 \
117 || (x)==PIX_FMT_BGR32 \
118 || (x)==PIX_FMT_BGR32_1 \
119 || (x)==PIX_FMT_RGB24 \
120 || (x)==PIX_FMT_RGB565 \
121 || (x)==PIX_FMT_RGB555 \
122 || (x)==PIX_FMT_GRAY8 \
123 || (x)==PIX_FMT_YUV410P \
124 || (x)==PIX_FMT_YUV440P \
125 || (x)==PIX_FMT_GRAY16BE \
126 || (x)==PIX_FMT_GRAY16LE \
127 || (x)==PIX_FMT_YUV444P \
128 || (x)==PIX_FMT_YUV422P \
129 || (x)==PIX_FMT_YUV411P \
130 || (x)==PIX_FMT_PAL8 \
131 || (x)==PIX_FMT_BGR8 \
132 || (x)==PIX_FMT_RGB8 \
133 || (x)==PIX_FMT_BGR4_BYTE \
134 || (x)==PIX_FMT_RGB4_BYTE \
135 || (x)==PIX_FMT_YUV440P \
136 || (x)==PIX_FMT_MONOWHITE \
137 || (x)==PIX_FMT_MONOBLACK \
138 || (x)==PIX_FMT_YUV420PLE \
139 || (x)==PIX_FMT_YUV422PLE \
140 || (x)==PIX_FMT_YUV444PLE \
141 || (x)==PIX_FMT_YUV420PBE \
142 || (x)==PIX_FMT_YUV422PBE \
143 || (x)==PIX_FMT_YUV444PBE \
145 #define isSupportedOut(x) ( \
146 (x)==PIX_FMT_YUV420P \
147 || (x)==PIX_FMT_YUVA420P \
148 || (x)==PIX_FMT_YUYV422 \
149 || (x)==PIX_FMT_UYVY422 \
150 || (x)==PIX_FMT_YUV444P \
151 || (x)==PIX_FMT_YUV422P \
152 || (x)==PIX_FMT_YUV411P \
155 || (x)==PIX_FMT_NV12 \
156 || (x)==PIX_FMT_NV21 \
157 || (x)==PIX_FMT_GRAY16BE \
158 || (x)==PIX_FMT_GRAY16LE \
159 || (x)==PIX_FMT_GRAY8 \
160 || (x)==PIX_FMT_YUV410P \
161 || (x)==PIX_FMT_YUV440P \
162 || (x)==PIX_FMT_YUV420PLE \
163 || (x)==PIX_FMT_YUV422PLE \
164 || (x)==PIX_FMT_YUV444PLE \
165 || (x)==PIX_FMT_YUV420PBE \
166 || (x)==PIX_FMT_YUV422PBE \
167 || (x)==PIX_FMT_YUV444PBE \
169 #define isPacked(x) ( \
171 || (x)==PIX_FMT_YUYV422 \
172 || (x)==PIX_FMT_UYVY422 \
176 #define usePal(x) ( \
178 || (x)==PIX_FMT_BGR4_BYTE \
179 || (x)==PIX_FMT_RGB4_BYTE \
180 || (x)==PIX_FMT_BGR8 \
181 || (x)==PIX_FMT_RGB8 \
184 #define RGB2YUV_SHIFT 15
185 #define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
186 #define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
187 #define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
188 #define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
189 #define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
190 #define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
191 #define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
192 #define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
193 #define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
195 extern const int32_t ff_yuv2rgb_coeffs[8][4];
197 static const double rgb2yuv_table[8][9]={
198 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
199 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
200 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
201 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
202 {0.59 , 0.11 , 0.30 , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
203 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
204 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //SMPTE 170M
205 {0.701 , 0.087 , 0.212 , -0.384, 0.5 -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
210 Special versions: fast Y 1:1 scaling (no interpolation in y direction)
213 more intelligent misalignment avoidance for the horizontal scaler
214 write special vertical cubic upscale version
215 optimize C code (YV12 / minmax)
216 add support for packed pixel YUV input & output
217 add support for Y8 output
218 optimize BGR24 & BGR32
219 add BGR4 output support
220 write special BGR->BGR scaler
223 #if ARCH_X86 && CONFIG_GPL
224 DECLARE_ASM_CONST(8, uint64_t, bF8)= 0xF8F8F8F8F8F8F8F8LL;
225 DECLARE_ASM_CONST(8, uint64_t, bFC)= 0xFCFCFCFCFCFCFCFCLL;
226 DECLARE_ASM_CONST(8, uint64_t, w10)= 0x0010001000100010LL;
227 DECLARE_ASM_CONST(8, uint64_t, w02)= 0x0002000200020002LL;
228 DECLARE_ASM_CONST(8, uint64_t, bm00001111)=0x00000000FFFFFFFFLL;
229 DECLARE_ASM_CONST(8, uint64_t, bm00000111)=0x0000000000FFFFFFLL;
230 DECLARE_ASM_CONST(8, uint64_t, bm11111000)=0xFFFFFFFFFF000000LL;
231 DECLARE_ASM_CONST(8, uint64_t, bm01010101)=0x00FF00FF00FF00FFLL;
233 const DECLARE_ALIGNED(8, uint64_t, ff_dither4[2]) = {
234 0x0103010301030103LL,
235 0x0200020002000200LL,};
237 const DECLARE_ALIGNED(8, uint64_t, ff_dither8[2]) = {
238 0x0602060206020602LL,
239 0x0004000400040004LL,};
241 DECLARE_ASM_CONST(8, uint64_t, b16Mask)= 0x001F001F001F001FLL;
242 DECLARE_ASM_CONST(8, uint64_t, g16Mask)= 0x07E007E007E007E0LL;
243 DECLARE_ASM_CONST(8, uint64_t, r16Mask)= 0xF800F800F800F800LL;
244 DECLARE_ASM_CONST(8, uint64_t, b15Mask)= 0x001F001F001F001FLL;
245 DECLARE_ASM_CONST(8, uint64_t, g15Mask)= 0x03E003E003E003E0LL;
246 DECLARE_ASM_CONST(8, uint64_t, r15Mask)= 0x7C007C007C007C00LL;
248 DECLARE_ALIGNED(8, const uint64_t, ff_M24A) = 0x00FF0000FF0000FFLL;
249 DECLARE_ALIGNED(8, const uint64_t, ff_M24B) = 0xFF0000FF0000FF00LL;
250 DECLARE_ALIGNED(8, const uint64_t, ff_M24C) = 0x0000FF0000FF0000LL;
253 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000000210041000DULL;
254 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000FFEEFFDC0038ULL;
255 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00000038FFD2FFF8ULL;
257 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000020E540830C8BULL;
258 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000ED0FDAC23831ULL;
259 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00003831D0E6F6EAULL;
260 #endif /* FAST_BGR2YV12 */
261 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset) = 0x1010101010101010ULL;
262 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;
263 DECLARE_ALIGNED(8, const uint64_t, ff_w1111) = 0x0001000100010001ULL;
265 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY1Coeff) = 0x0C88000040870C88ULL;
266 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY2Coeff) = 0x20DE4087000020DEULL;
267 DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY1Coeff) = 0x20DE0000408720DEULL;
268 DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY2Coeff) = 0x0C88408700000C88ULL;
269 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toYOffset) = 0x0008400000084000ULL;
271 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUV[2][4]) = {
272 {0x38380000DAC83838ULL, 0xECFFDAC80000ECFFULL, 0xF6E40000D0E3F6E4ULL, 0x3838D0E300003838ULL},
273 {0xECFF0000DAC8ECFFULL, 0x3838DAC800003838ULL, 0x38380000D0E33838ULL, 0xF6E4D0E30000F6E4ULL},
276 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUVOffset)= 0x0040400000404000ULL;
278 #endif /* ARCH_X86 && CONFIG_GPL */
280 // clipping helper table for C implementations:
281 static unsigned char clip_table[768];
283 static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
285 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_4[2][8])={
286 { 1, 3, 1, 3, 1, 3, 1, 3, },
287 { 2, 0, 2, 0, 2, 0, 2, 0, },
290 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_8[2][8])={
291 { 6, 2, 6, 2, 6, 2, 6, 2, },
292 { 0, 4, 0, 4, 0, 4, 0, 4, },
295 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_32[8][8])={
296 { 17, 9, 23, 15, 16, 8, 22, 14, },
297 { 5, 29, 3, 27, 4, 28, 2, 26, },
298 { 21, 13, 19, 11, 20, 12, 18, 10, },
299 { 0, 24, 6, 30, 1, 25, 7, 31, },
300 { 16, 8, 22, 14, 17, 9, 23, 15, },
301 { 4, 28, 2, 26, 5, 29, 3, 27, },
302 { 20, 12, 18, 10, 21, 13, 19, 11, },
303 { 1, 25, 7, 31, 0, 24, 6, 30, },
306 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_73[8][8])={
307 { 0, 55, 14, 68, 3, 58, 17, 72, },
308 { 37, 18, 50, 32, 40, 22, 54, 35, },
309 { 9, 64, 5, 59, 13, 67, 8, 63, },
310 { 46, 27, 41, 23, 49, 31, 44, 26, },
311 { 2, 57, 16, 71, 1, 56, 15, 70, },
312 { 39, 21, 52, 34, 38, 19, 51, 33, },
313 { 11, 66, 7, 62, 10, 65, 6, 60, },
314 { 48, 30, 43, 25, 47, 29, 42, 24, },
318 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220[8][8])={
319 {117, 62, 158, 103, 113, 58, 155, 100, },
320 { 34, 199, 21, 186, 31, 196, 17, 182, },
321 {144, 89, 131, 76, 141, 86, 127, 72, },
322 { 0, 165, 41, 206, 10, 175, 52, 217, },
323 {110, 55, 151, 96, 120, 65, 162, 107, },
324 { 28, 193, 14, 179, 38, 203, 24, 189, },
325 {138, 83, 124, 69, 148, 93, 134, 79, },
326 { 7, 172, 48, 213, 3, 168, 45, 210, },
329 // tries to correct a gamma of 1.5
330 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220[8][8])={
331 { 0, 143, 18, 200, 2, 156, 25, 215, },
332 { 78, 28, 125, 64, 89, 36, 138, 74, },
333 { 10, 180, 3, 161, 16, 195, 8, 175, },
334 {109, 51, 93, 38, 121, 60, 105, 47, },
335 { 1, 152, 23, 210, 0, 147, 20, 205, },
336 { 85, 33, 134, 71, 81, 30, 130, 67, },
337 { 14, 190, 6, 171, 12, 185, 5, 166, },
338 {117, 57, 101, 44, 113, 54, 97, 41, },
341 // tries to correct a gamma of 2.0
342 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220[8][8])={
343 { 0, 124, 8, 193, 0, 140, 12, 213, },
344 { 55, 14, 104, 42, 66, 19, 119, 52, },
345 { 3, 168, 1, 145, 6, 187, 3, 162, },
346 { 86, 31, 70, 21, 99, 39, 82, 28, },
347 { 0, 134, 11, 206, 0, 129, 9, 200, },
348 { 62, 17, 114, 48, 58, 16, 109, 45, },
349 { 5, 181, 2, 157, 4, 175, 1, 151, },
350 { 95, 36, 78, 26, 90, 34, 74, 24, },
353 // tries to correct a gamma of 2.5
354 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220[8][8])={
355 { 0, 107, 3, 187, 0, 125, 6, 212, },
356 { 39, 7, 86, 28, 49, 11, 102, 36, },
357 { 1, 158, 0, 131, 3, 180, 1, 151, },
358 { 68, 19, 52, 12, 81, 25, 64, 17, },
359 { 0, 119, 5, 203, 0, 113, 4, 195, },
360 { 45, 9, 96, 33, 42, 8, 91, 30, },
361 { 2, 172, 1, 144, 2, 165, 0, 137, },
362 { 77, 23, 60, 15, 72, 21, 56, 14, },
366 const char *sws_format_name(enum PixelFormat format)
369 case PIX_FMT_YUV420P:
371 case PIX_FMT_YUVA420P:
373 case PIX_FMT_YUYV422:
379 case PIX_FMT_YUV422P:
381 case PIX_FMT_YUV444P:
385 case PIX_FMT_YUV410P:
387 case PIX_FMT_YUV411P:
393 case PIX_FMT_GRAY16BE:
395 case PIX_FMT_GRAY16LE:
399 case PIX_FMT_MONOWHITE:
401 case PIX_FMT_MONOBLACK:
405 case PIX_FMT_YUVJ420P:
407 case PIX_FMT_YUVJ422P:
409 case PIX_FMT_YUVJ444P:
411 case PIX_FMT_XVMC_MPEG2_MC:
412 return "xvmc_mpeg2_mc";
413 case PIX_FMT_XVMC_MPEG2_IDCT:
414 return "xvmc_mpeg2_idct";
415 case PIX_FMT_UYVY422:
417 case PIX_FMT_UYYVYY411:
419 case PIX_FMT_RGB32_1:
421 case PIX_FMT_BGR32_1:
433 case PIX_FMT_BGR4_BYTE:
439 case PIX_FMT_RGB4_BYTE:
441 case PIX_FMT_RGB48BE:
443 case PIX_FMT_RGB48LE:
449 case PIX_FMT_YUV440P:
451 case PIX_FMT_VDPAU_H264:
453 case PIX_FMT_VDPAU_MPEG1:
454 return "vdpau_mpeg1";
455 case PIX_FMT_VDPAU_MPEG2:
456 return "vdpau_mpeg2";
457 case PIX_FMT_VDPAU_WMV3:
459 case PIX_FMT_VDPAU_VC1:
461 case PIX_FMT_YUV420PLE:
463 case PIX_FMT_YUV422PLE:
465 case PIX_FMT_YUV444PLE:
467 case PIX_FMT_YUV420PBE:
469 case PIX_FMT_YUV422PBE:
471 case PIX_FMT_YUV444PBE:
474 return "Unknown format";
478 static av_always_inline void yuv2yuvX16inC_template(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
479 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
480 const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest,
481 int dstW, int chrDstW, int big_endian)
483 //FIXME Optimize (just quickly written not optimized..)
486 for (i = 0; i < dstW; i++) {
490 for (j = 0; j < lumFilterSize; j++)
491 val += lumSrc[j][i] * lumFilter[j];
494 AV_WB16(&dest[i], av_clip_uint16(val >> 11));
496 AV_WL16(&dest[i], av_clip_uint16(val >> 11));
501 for (i = 0; i < chrDstW; i++) {
506 for (j = 0; j < chrFilterSize; j++) {
507 u += chrSrc[j][i ] * chrFilter[j];
508 v += chrSrc[j][i + VOFW] * chrFilter[j];
512 AV_WB16(&uDest[i], av_clip_uint16(u >> 11));
513 AV_WB16(&vDest[i], av_clip_uint16(v >> 11));
515 AV_WL16(&uDest[i], av_clip_uint16(u >> 11));
516 AV_WL16(&vDest[i], av_clip_uint16(v >> 11));
521 if (CONFIG_SWSCALE_ALPHA && aDest) {
522 for (i = 0; i < dstW; i++) {
526 for (j = 0; j < lumFilterSize; j++)
527 val += alpSrc[j][i] * lumFilter[j];
530 AV_WB16(&aDest[i], av_clip_uint16(val >> 11));
532 AV_WL16(&aDest[i], av_clip_uint16(val >> 11));
538 static inline void yuv2yuvX16inC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
539 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
540 const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest, int dstW, int chrDstW,
541 enum PixelFormat dstFormat)
543 if (isBE(dstFormat)) {
544 yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,
545 chrFilter, chrSrc, chrFilterSize,
547 dest, uDest, vDest, aDest,
550 yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,
551 chrFilter, chrSrc, chrFilterSize,
553 dest, uDest, vDest, aDest,
558 static inline void yuv2yuvXinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
559 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
560 const int16_t **alpSrc, uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, int dstW, int chrDstW)
562 //FIXME Optimize (just quickly written not optimized..)
564 for (i=0; i<dstW; i++) {
567 for (j=0; j<lumFilterSize; j++)
568 val += lumSrc[j][i] * lumFilter[j];
570 dest[i]= av_clip_uint8(val>>19);
574 for (i=0; i<chrDstW; i++) {
578 for (j=0; j<chrFilterSize; j++) {
579 u += chrSrc[j][i] * chrFilter[j];
580 v += chrSrc[j][i + VOFW] * chrFilter[j];
583 uDest[i]= av_clip_uint8(u>>19);
584 vDest[i]= av_clip_uint8(v>>19);
587 if (CONFIG_SWSCALE_ALPHA && aDest)
588 for (i=0; i<dstW; i++) {
591 for (j=0; j<lumFilterSize; j++)
592 val += alpSrc[j][i] * lumFilter[j];
594 aDest[i]= av_clip_uint8(val>>19);
599 static inline void yuv2nv12XinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
600 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
601 uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
603 //FIXME Optimize (just quickly written not optimized..)
605 for (i=0; i<dstW; i++) {
608 for (j=0; j<lumFilterSize; j++)
609 val += lumSrc[j][i] * lumFilter[j];
611 dest[i]= av_clip_uint8(val>>19);
617 if (dstFormat == PIX_FMT_NV12)
618 for (i=0; i<chrDstW; i++) {
622 for (j=0; j<chrFilterSize; j++) {
623 u += chrSrc[j][i] * chrFilter[j];
624 v += chrSrc[j][i + VOFW] * chrFilter[j];
627 uDest[2*i]= av_clip_uint8(u>>19);
628 uDest[2*i+1]= av_clip_uint8(v>>19);
631 for (i=0; i<chrDstW; i++) {
635 for (j=0; j<chrFilterSize; j++) {
636 u += chrSrc[j][i] * chrFilter[j];
637 v += chrSrc[j][i + VOFW] * chrFilter[j];
640 uDest[2*i]= av_clip_uint8(v>>19);
641 uDest[2*i+1]= av_clip_uint8(u>>19);
645 #define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \
646 for (i=0; i<(dstW>>1); i++) {\
652 int av_unused A1, A2;\
653 type av_unused *r, *b, *g;\
656 for (j=0; j<lumFilterSize; j++) {\
657 Y1 += lumSrc[j][i2] * lumFilter[j];\
658 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
660 for (j=0; j<chrFilterSize; j++) {\
661 U += chrSrc[j][i] * chrFilter[j];\
662 V += chrSrc[j][i+VOFW] * chrFilter[j];\
671 for (j=0; j<lumFilterSize; j++) {\
672 A1 += alpSrc[j][i2 ] * lumFilter[j];\
673 A2 += alpSrc[j][i2+1] * lumFilter[j];\
679 #define YSCALE_YUV_2_PACKEDX_C(type,alpha) \
680 YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\
681 if ((Y1|Y2|U|V)&256) {\
682 if (Y1>255) Y1=255; \
683 else if (Y1<0)Y1=0; \
684 if (Y2>255) Y2=255; \
685 else if (Y2<0)Y2=0; \
691 if (alpha && ((A1|A2)&256)) {\
692 A1=av_clip_uint8(A1);\
693 A2=av_clip_uint8(A2);\
696 #define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \
697 for (i=0; i<dstW; i++) {\
705 for (j=0; j<lumFilterSize; j++) {\
706 Y += lumSrc[j][i ] * lumFilter[j];\
708 for (j=0; j<chrFilterSize; j++) {\
709 U += chrSrc[j][i ] * chrFilter[j];\
710 V += chrSrc[j][i+VOFW] * chrFilter[j];\
717 for (j=0; j<lumFilterSize; j++)\
718 A += alpSrc[j][i ] * lumFilter[j];\
721 A = av_clip_uint8(A);\
724 #define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \
725 YSCALE_YUV_2_PACKEDX_FULL_C(rnd>>3,alpha)\
726 Y-= c->yuv2rgb_y_offset;\
727 Y*= c->yuv2rgb_y_coeff;\
729 R= Y + V*c->yuv2rgb_v2r_coeff;\
730 G= Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;\
731 B= Y + U*c->yuv2rgb_u2b_coeff;\
732 if ((R|G|B)&(0xC0000000)) {\
733 if (R>=(256<<22)) R=(256<<22)-1; \
735 if (G>=(256<<22)) G=(256<<22)-1; \
737 if (B>=(256<<22)) B=(256<<22)-1; \
742 #define YSCALE_YUV_2_GRAY16_C \
743 for (i=0; i<(dstW>>1); i++) {\
752 for (j=0; j<lumFilterSize; j++) {\
753 Y1 += lumSrc[j][i2] * lumFilter[j];\
754 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
758 if ((Y1|Y2|U|V)&65536) {\
759 if (Y1>65535) Y1=65535; \
760 else if (Y1<0)Y1=0; \
761 if (Y2>65535) Y2=65535; \
762 else if (Y2<0)Y2=0; \
765 #define YSCALE_YUV_2_RGBX_C(type,alpha) \
766 YSCALE_YUV_2_PACKEDX_C(type,alpha) /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\
767 r = (type *)c->table_rV[V]; \
768 g = (type *)(c->table_gU[U] + c->table_gV[V]); \
769 b = (type *)c->table_bU[U]; \
771 #define YSCALE_YUV_2_PACKED2_C(type,alpha) \
772 for (i=0; i<(dstW>>1); i++) { \
774 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19; \
775 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19; \
776 int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19; \
777 int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19; \
778 type av_unused *r, *b, *g; \
779 int av_unused A1, A2; \
781 A1= (abuf0[i2 ]*yalpha1+abuf1[i2 ]*yalpha)>>19; \
782 A2= (abuf0[i2+1]*yalpha1+abuf1[i2+1]*yalpha)>>19; \
785 #define YSCALE_YUV_2_GRAY16_2_C \
786 for (i=0; i<(dstW>>1); i++) { \
788 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>11; \
789 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11; \
791 #define YSCALE_YUV_2_RGB2_C(type,alpha) \
792 YSCALE_YUV_2_PACKED2_C(type,alpha)\
793 r = (type *)c->table_rV[V];\
794 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
795 b = (type *)c->table_bU[U];\
797 #define YSCALE_YUV_2_PACKED1_C(type,alpha) \
798 for (i=0; i<(dstW>>1); i++) {\
800 int Y1= buf0[i2 ]>>7;\
801 int Y2= buf0[i2+1]>>7;\
802 int U= (uvbuf1[i ])>>7;\
803 int V= (uvbuf1[i+VOFW])>>7;\
804 type av_unused *r, *b, *g;\
805 int av_unused A1, A2;\
811 #define YSCALE_YUV_2_GRAY16_1_C \
812 for (i=0; i<(dstW>>1); i++) {\
814 int Y1= buf0[i2 ]<<1;\
815 int Y2= buf0[i2+1]<<1;\
817 #define YSCALE_YUV_2_RGB1_C(type,alpha) \
818 YSCALE_YUV_2_PACKED1_C(type,alpha)\
819 r = (type *)c->table_rV[V];\
820 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
821 b = (type *)c->table_bU[U];\
823 #define YSCALE_YUV_2_PACKED1B_C(type,alpha) \
824 for (i=0; i<(dstW>>1); i++) {\
826 int Y1= buf0[i2 ]>>7;\
827 int Y2= buf0[i2+1]>>7;\
828 int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
829 int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
830 type av_unused *r, *b, *g;\
831 int av_unused A1, A2;\
837 #define YSCALE_YUV_2_RGB1B_C(type,alpha) \
838 YSCALE_YUV_2_PACKED1B_C(type,alpha)\
839 r = (type *)c->table_rV[V];\
840 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
841 b = (type *)c->table_bU[U];\
843 #define YSCALE_YUV_2_MONO2_C \
844 const uint8_t * const d128=dither_8x8_220[y&7];\
845 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
846 for (i=0; i<dstW-7; i+=8) {\
848 acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
849 acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
850 acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
851 acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
852 acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
853 acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
854 acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
855 acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
856 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
861 #define YSCALE_YUV_2_MONOX_C \
862 const uint8_t * const d128=dither_8x8_220[y&7];\
863 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
865 for (i=0; i<dstW-1; i+=2) {\
870 for (j=0; j<lumFilterSize; j++) {\
871 Y1 += lumSrc[j][i] * lumFilter[j];\
872 Y2 += lumSrc[j][i+1] * lumFilter[j];\
882 acc+= acc + g[Y1+d128[(i+0)&7]];\
883 acc+= acc + g[Y2+d128[(i+1)&7]];\
885 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
891 #define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\
892 switch(c->dstFormat) {\
893 case PIX_FMT_RGB48BE:\
894 case PIX_FMT_RGB48LE:\
896 ((uint8_t*)dest)[ 0]= r[Y1];\
897 ((uint8_t*)dest)[ 1]= r[Y1];\
898 ((uint8_t*)dest)[ 2]= g[Y1];\
899 ((uint8_t*)dest)[ 3]= g[Y1];\
900 ((uint8_t*)dest)[ 4]= b[Y1];\
901 ((uint8_t*)dest)[ 5]= b[Y1];\
902 ((uint8_t*)dest)[ 6]= r[Y2];\
903 ((uint8_t*)dest)[ 7]= r[Y2];\
904 ((uint8_t*)dest)[ 8]= g[Y2];\
905 ((uint8_t*)dest)[ 9]= g[Y2];\
906 ((uint8_t*)dest)[10]= b[Y2];\
907 ((uint8_t*)dest)[11]= b[Y2];\
914 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
915 func(uint32_t,needAlpha)\
916 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? (A1<<24) : 0);\
917 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? (A2<<24) : 0);\
920 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\
922 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (A1<<24);\
923 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (A2<<24);\
927 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
928 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
936 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
937 func(uint32_t,needAlpha)\
938 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? A1 : 0);\
939 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? A2 : 0);\
942 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\
944 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + A1;\
945 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + A2;\
949 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
950 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
957 ((uint8_t*)dest)[0]= r[Y1];\
958 ((uint8_t*)dest)[1]= g[Y1];\
959 ((uint8_t*)dest)[2]= b[Y1];\
960 ((uint8_t*)dest)[3]= r[Y2];\
961 ((uint8_t*)dest)[4]= g[Y2];\
962 ((uint8_t*)dest)[5]= b[Y2];\
968 ((uint8_t*)dest)[0]= b[Y1];\
969 ((uint8_t*)dest)[1]= g[Y1];\
970 ((uint8_t*)dest)[2]= r[Y1];\
971 ((uint8_t*)dest)[3]= b[Y2];\
972 ((uint8_t*)dest)[4]= g[Y2];\
973 ((uint8_t*)dest)[5]= r[Y2];\
977 case PIX_FMT_RGB565:\
978 case PIX_FMT_BGR565:\
980 const int dr1= dither_2x2_8[y&1 ][0];\
981 const int dg1= dither_2x2_4[y&1 ][0];\
982 const int db1= dither_2x2_8[(y&1)^1][0];\
983 const int dr2= dither_2x2_8[y&1 ][1];\
984 const int dg2= dither_2x2_4[y&1 ][1];\
985 const int db2= dither_2x2_8[(y&1)^1][1];\
987 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
988 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
992 case PIX_FMT_RGB555:\
993 case PIX_FMT_BGR555:\
995 const int dr1= dither_2x2_8[y&1 ][0];\
996 const int dg1= dither_2x2_8[y&1 ][1];\
997 const int db1= dither_2x2_8[(y&1)^1][0];\
998 const int dr2= dither_2x2_8[y&1 ][1];\
999 const int dg2= dither_2x2_8[y&1 ][0];\
1000 const int db2= dither_2x2_8[(y&1)^1][1];\
1002 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
1003 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
1010 const uint8_t * const d64= dither_8x8_73[y&7];\
1011 const uint8_t * const d32= dither_8x8_32[y&7];\
1013 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
1014 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
1021 const uint8_t * const d64= dither_8x8_73 [y&7];\
1022 const uint8_t * const d128=dither_8x8_220[y&7];\
1024 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
1025 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
1029 case PIX_FMT_RGB4_BYTE:\
1030 case PIX_FMT_BGR4_BYTE:\
1032 const uint8_t * const d64= dither_8x8_73 [y&7];\
1033 const uint8_t * const d128=dither_8x8_220[y&7];\
1035 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
1036 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
1040 case PIX_FMT_MONOBLACK:\
1041 case PIX_FMT_MONOWHITE:\
1046 case PIX_FMT_YUYV422:\
1048 ((uint8_t*)dest)[2*i2+0]= Y1;\
1049 ((uint8_t*)dest)[2*i2+1]= U;\
1050 ((uint8_t*)dest)[2*i2+2]= Y2;\
1051 ((uint8_t*)dest)[2*i2+3]= V;\
1054 case PIX_FMT_UYVY422:\
1056 ((uint8_t*)dest)[2*i2+0]= U;\
1057 ((uint8_t*)dest)[2*i2+1]= Y1;\
1058 ((uint8_t*)dest)[2*i2+2]= V;\
1059 ((uint8_t*)dest)[2*i2+3]= Y2;\
1062 case PIX_FMT_GRAY16BE:\
1064 ((uint8_t*)dest)[2*i2+0]= Y1>>8;\
1065 ((uint8_t*)dest)[2*i2+1]= Y1;\
1066 ((uint8_t*)dest)[2*i2+2]= Y2>>8;\
1067 ((uint8_t*)dest)[2*i2+3]= Y2;\
1070 case PIX_FMT_GRAY16LE:\
1072 ((uint8_t*)dest)[2*i2+0]= Y1;\
1073 ((uint8_t*)dest)[2*i2+1]= Y1>>8;\
1074 ((uint8_t*)dest)[2*i2+2]= Y2;\
1075 ((uint8_t*)dest)[2*i2+3]= Y2>>8;\
1081 static inline void yuv2packedXinC(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
1082 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
1083 const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
1086 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)
1089 static inline void yuv2rgbXinC_full(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
1090 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
1091 const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
1094 int step= fmt_depth(c->dstFormat)/8;
1097 switch(c->dstFormat) {
1105 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
1106 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
1107 dest[aidx]= needAlpha ? A : 255;
1114 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
1115 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
1123 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
1140 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
1141 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
1142 dest[aidx]= needAlpha ? A : 255;
1149 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
1150 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
1158 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
1173 static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val)
1176 uint8_t *ptr = plane + stride*y;
1177 for (i=0; i<height; i++) {
1178 memset(ptr, val, width);
1183 static inline void rgb48ToY(uint8_t *dst, const uint8_t *src, int width)
1186 for (i = 0; i < width; i++) {
1191 dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
1195 static inline void rgb48ToUV(uint8_t *dstU, uint8_t *dstV,
1196 uint8_t *src1, uint8_t *src2, int width)
1200 for (i = 0; i < width; i++) {
1201 int r = src1[6*i + 0];
1202 int g = src1[6*i + 2];
1203 int b = src1[6*i + 4];
1205 dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
1206 dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
1210 static inline void rgb48ToUV_half(uint8_t *dstU, uint8_t *dstV,
1211 uint8_t *src1, uint8_t *src2, int width)
1215 for (i = 0; i < width; i++) {
1216 int r= src1[12*i + 0] + src1[12*i + 6];
1217 int g= src1[12*i + 2] + src1[12*i + 8];
1218 int b= src1[12*i + 4] + src1[12*i + 10];
1220 dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
1221 dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
1225 #define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\
1226 static inline void name(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)\
1229 for (i=0; i<width; i++) {\
1230 int b= (((const type*)src)[i]>>shb)&maskb;\
1231 int g= (((const type*)src)[i]>>shg)&maskg;\
1232 int r= (((const type*)src)[i]>>shr)&maskr;\
1234 dst[i]= (((RY)*r + (GY)*g + (BY)*b + (33<<((S)-1)))>>(S));\
1238 BGR2Y(uint32_t, bgr32ToY,16, 0, 0, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, RGB2YUV_SHIFT+8)
1239 BGR2Y(uint32_t, rgb32ToY, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, RGB2YUV_SHIFT+8)
1240 BGR2Y(uint16_t, bgr16ToY, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RY<<11, GY<<5, BY , RGB2YUV_SHIFT+8)
1241 BGR2Y(uint16_t, bgr15ToY, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY<<10, GY<<5, BY , RGB2YUV_SHIFT+7)
1242 BGR2Y(uint16_t, rgb16ToY, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY , GY<<5, BY<<11, RGB2YUV_SHIFT+8)
1243 BGR2Y(uint16_t, rgb15ToY, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY , GY<<5, BY<<10, RGB2YUV_SHIFT+7)
1245 static inline void abgrToA(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1248 for (i=0; i<width; i++) {
1253 #define BGR2UV(type, name, shr, shg, shb, maska, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S)\
1254 static inline void name(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1257 for (i=0; i<width; i++) {\
1258 int b= (((const type*)src)[i]&maskb)>>shb;\
1259 int g= (((const type*)src)[i]&maskg)>>shg;\
1260 int r= (((const type*)src)[i]&maskr)>>shr;\
1262 dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<((S)-1)))>>(S);\
1263 dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\
1266 static inline void name ## _half(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1269 for (i=0; i<width; i++) {\
1270 int pix0= ((const type*)src)[2*i+0];\
1271 int pix1= ((const type*)src)[2*i+1];\
1272 int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\
1273 int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\
1274 int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\
1275 g&= maskg|(2*maskg);\
1279 dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<(S)))>>((S)+1);\
1280 dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<(S)))>>((S)+1);\
1284 BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0xFF000000, 0xFF0000, 0xFF00, 0x00FF, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
1285 BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0xFF000000, 0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
1286 BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RU<<11, GU<<5, BU , RV<<11, GV<<5, BV , RGB2YUV_SHIFT+8)
1287 BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RU<<10, GU<<5, BU , RV<<10, GV<<5, BV , RGB2YUV_SHIFT+7)
1288 BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RU , GU<<5, BU<<11, RV , GV<<5, BV<<11, RGB2YUV_SHIFT+8)
1289 BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RU , GU<<5, BU<<10, RV , GV<<5, BV<<10, RGB2YUV_SHIFT+7)
1291 static inline void palToY(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)
1294 for (i=0; i<width; i++) {
1297 dst[i]= pal[d] & 0xFF;
1301 static inline void palToUV(uint8_t *dstU, uint8_t *dstV,
1302 const uint8_t *src1, const uint8_t *src2,
1303 long width, uint32_t *pal)
1306 assert(src1 == src2);
1307 for (i=0; i<width; i++) {
1308 int p= pal[src1[i]];
1315 static inline void monowhite2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1318 for (i=0; i<width/8; i++) {
1321 dst[8*i+j]= ((d>>(7-j))&1)*255;
1325 static inline void monoblack2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1328 for (i=0; i<width/8; i++) {
1331 dst[8*i+j]= ((d>>(7-j))&1)*255;
1336 //Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
1338 #if ((!HAVE_MMX || !CONFIG_GPL) && !HAVE_ALTIVEC) || CONFIG_RUNTIME_CPUDETECT
1343 #if HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT
1344 #define COMPILE_ALTIVEC
1350 #if ((HAVE_MMX && !HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1354 #if (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1355 #define COMPILE_MMX2
1358 #if ((HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1359 #define COMPILE_3DNOW
1363 #define COMPILE_TEMPLATE_MMX 0
1364 #define COMPILE_TEMPLATE_MMX2 0
1365 #define COMPILE_TEMPLATE_AMD3DNOW 0
1366 #define COMPILE_TEMPLATE_ALTIVEC 0
1369 #define RENAME(a) a ## _C
1370 #include "swscale_template.c"
1373 #ifdef COMPILE_ALTIVEC
1375 #undef COMPILE_TEMPLATE_ALTIVEC
1376 #define COMPILE_TEMPLATE_ALTIVEC 1
1377 #define RENAME(a) a ## _altivec
1378 #include "swscale_template.c"
1386 #undef COMPILE_TEMPLATE_MMX
1387 #undef COMPILE_TEMPLATE_MMX2
1388 #undef COMPILE_TEMPLATE_AMD3DNOW
1389 #define COMPILE_TEMPLATE_MMX 1
1390 #define COMPILE_TEMPLATE_MMX2 0
1391 #define COMPILE_TEMPLATE_AMD3DNOW 0
1392 #define RENAME(a) a ## _MMX
1393 #include "swscale_template.c"
1399 #undef COMPILE_TEMPLATE_MMX
1400 #undef COMPILE_TEMPLATE_MMX2
1401 #undef COMPILE_TEMPLATE_AMD3DNOW
1402 #define COMPILE_TEMPLATE_MMX 1
1403 #define COMPILE_TEMPLATE_MMX2 1
1404 #define COMPILE_TEMPLATE_AMD3DNOW 0
1405 #define RENAME(a) a ## _MMX2
1406 #include "swscale_template.c"
1410 #ifdef COMPILE_3DNOW
1412 #undef COMPILE_TEMPLATE_MMX
1413 #undef COMPILE_TEMPLATE_MMX2
1414 #undef COMPILE_TEMPLATE_AMD3DNOW
1415 #define COMPILE_TEMPLATE_MMX 1
1416 #define COMPILE_TEMPLATE_MMX2 0
1417 #define COMPILE_TEMPLATE_AMD3DNOW 1
1418 #define RENAME(a) a ## _3DNow
1419 #include "swscale_template.c"
1424 static double getSplineCoeff(double a, double b, double c, double d, double dist)
1426 // printf("%f %f %f %f %f\n", a,b,c,d,dist);
1427 if (dist<=1.0) return ((d*dist + c)*dist + b)*dist +a;
1428 else return getSplineCoeff( 0.0,
1435 static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
1436 int srcW, int dstW, int filterAlign, int one, int flags,
1437 SwsVector *srcFilter, SwsVector *dstFilter, double param[2])
1443 int64_t *filter=NULL;
1444 int64_t *filter2=NULL;
1445 const int64_t fone= 1LL<<54;
1448 if (flags & SWS_CPU_CAPS_MMX)
1449 __asm__ volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions)
1452 // NOTE: the +1 is for the MMX scaler which reads over the end
1453 *filterPos = av_malloc((dstW+1)*sizeof(int16_t));
1455 if (FFABS(xInc - 0x10000) <10) { // unscaled
1458 filter= av_mallocz(dstW*sizeof(*filter)*filterSize);
1460 for (i=0; i<dstW; i++) {
1461 filter[i*filterSize]= fone;
1465 } else if (flags&SWS_POINT) { // lame looking point sampling mode
1469 filter= av_malloc(dstW*sizeof(*filter)*filterSize);
1471 xDstInSrc= xInc/2 - 0x8000;
1472 for (i=0; i<dstW; i++) {
1473 int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
1475 (*filterPos)[i]= xx;
1479 } else if ((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) { // bilinear upscale
1483 filter= av_malloc(dstW*sizeof(*filter)*filterSize);
1485 xDstInSrc= xInc/2 - 0x8000;
1486 for (i=0; i<dstW; i++) {
1487 int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
1490 (*filterPos)[i]= xx;
1491 //bilinear upscale / linear interpolate / area averaging
1492 for (j=0; j<filterSize; j++) {
1493 int64_t coeff= fone - FFABS((xx<<16) - xDstInSrc)*(fone>>16);
1494 if (coeff<0) coeff=0;
1495 filter[i*filterSize + j]= coeff;
1504 if (flags&SWS_BICUBIC) sizeFactor= 4;
1505 else if (flags&SWS_X) sizeFactor= 8;
1506 else if (flags&SWS_AREA) sizeFactor= 1; //downscale only, for upscale it is bilinear
1507 else if (flags&SWS_GAUSS) sizeFactor= 8; // infinite ;)
1508 else if (flags&SWS_LANCZOS) sizeFactor= param[0] != SWS_PARAM_DEFAULT ? ceil(2*param[0]) : 6;
1509 else if (flags&SWS_SINC) sizeFactor= 20; // infinite ;)
1510 else if (flags&SWS_SPLINE) sizeFactor= 20; // infinite ;)
1511 else if (flags&SWS_BILINEAR) sizeFactor= 2;
1513 sizeFactor= 0; //GCC warning killer
1517 if (xInc <= 1<<16) filterSize= 1 + sizeFactor; // upscale
1518 else filterSize= 1 + (sizeFactor*srcW + dstW - 1)/ dstW;
1520 if (filterSize > srcW-2) filterSize=srcW-2;
1522 filter= av_malloc(dstW*sizeof(*filter)*filterSize);
1524 xDstInSrc= xInc - 0x10000;
1525 for (i=0; i<dstW; i++) {
1526 int xx= (xDstInSrc - ((filterSize-2)<<16)) / (1<<17);
1528 (*filterPos)[i]= xx;
1529 for (j=0; j<filterSize; j++) {
1530 int64_t d= ((int64_t)FFABS((xx<<17) - xDstInSrc))<<13;
1536 floatd= d * (1.0/(1<<30));
1538 if (flags & SWS_BICUBIC) {
1539 int64_t B= (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1<<24);
1540 int64_t C= (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1<<24);
1541 int64_t dd = ( d*d)>>30;
1542 int64_t ddd= (dd*d)>>30;
1545 coeff = (12*(1<<24)-9*B-6*C)*ddd + (-18*(1<<24)+12*B+6*C)*dd + (6*(1<<24)-2*B)*(1<<30);
1546 else if (d < 1LL<<31)
1547 coeff = (-B-6*C)*ddd + (6*B+30*C)*dd + (-12*B-48*C)*d + (8*B+24*C)*(1<<30);
1550 coeff *= fone>>(30+24);
1552 /* else if (flags & SWS_X) {
1553 double p= param ? param*0.01 : 0.3;
1554 coeff = d ? sin(d*PI)/(d*PI) : 1.0;
1555 coeff*= pow(2.0, - p*d*d);
1557 else if (flags & SWS_X) {
1558 double A= param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
1565 if (c<0.0) c= -pow(-c, A);
1567 coeff= (c*0.5 + 0.5)*fone;
1568 } else if (flags & SWS_AREA) {
1569 int64_t d2= d - (1<<29);
1570 if (d2*xInc < -(1LL<<(29+16))) coeff= 1.0 * (1LL<<(30+16));
1571 else if (d2*xInc < (1LL<<(29+16))) coeff= -d2*xInc + (1LL<<(29+16));
1573 coeff *= fone>>(30+16);
1574 } else if (flags & SWS_GAUSS) {
1575 double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
1576 coeff = (pow(2.0, - p*floatd*floatd))*fone;
1577 } else if (flags & SWS_SINC) {
1578 coeff = (d ? sin(floatd*PI)/(floatd*PI) : 1.0)*fone;
1579 } else if (flags & SWS_LANCZOS) {
1580 double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
1581 coeff = (d ? sin(floatd*PI)*sin(floatd*PI/p)/(floatd*floatd*PI*PI/p) : 1.0)*fone;
1582 if (floatd>p) coeff=0;
1583 } else if (flags & SWS_BILINEAR) {
1585 if (coeff<0) coeff=0;
1586 coeff *= fone >> 30;
1587 } else if (flags & SWS_SPLINE) {
1588 double p=-2.196152422706632;
1589 coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, floatd) * fone;
1591 coeff= 0.0; //GCC warning killer
1595 filter[i*filterSize + j]= coeff;
1602 /* apply src & dst Filter to filter -> filter2
1605 assert(filterSize>0);
1606 filter2Size= filterSize;
1607 if (srcFilter) filter2Size+= srcFilter->length - 1;
1608 if (dstFilter) filter2Size+= dstFilter->length - 1;
1609 assert(filter2Size>0);
1610 filter2= av_mallocz(filter2Size*dstW*sizeof(*filter2));
1612 for (i=0; i<dstW; i++) {
1616 for (k=0; k<srcFilter->length; k++) {
1617 for (j=0; j<filterSize; j++)
1618 filter2[i*filter2Size + k + j] += srcFilter->coeff[k]*filter[i*filterSize + j];
1621 for (j=0; j<filterSize; j++)
1622 filter2[i*filter2Size + j]= filter[i*filterSize + j];
1626 (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
1630 /* try to reduce the filter-size (step1 find size and shift left) */
1631 // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
1633 for (i=dstW-1; i>=0; i--) {
1634 int min= filter2Size;
1638 /* get rid off near zero elements on the left by shifting left */
1639 for (j=0; j<filter2Size; j++) {
1641 cutOff += FFABS(filter2[i*filter2Size]);
1643 if (cutOff > SWS_MAX_REDUCE_CUTOFF*fone) break;
1645 /* preserve monotonicity because the core can't handle the filter otherwise */
1646 if (i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
1648 // move filter coefficients left
1649 for (k=1; k<filter2Size; k++)
1650 filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
1651 filter2[i*filter2Size + k - 1]= 0;
1656 /* count near zeros on the right */
1657 for (j=filter2Size-1; j>0; j--) {
1658 cutOff += FFABS(filter2[i*filter2Size + j]);
1660 if (cutOff > SWS_MAX_REDUCE_CUTOFF*fone) break;
1664 if (min>minFilterSize) minFilterSize= min;
1667 if (flags & SWS_CPU_CAPS_ALTIVEC) {
1668 // we can handle the special case 4,
1669 // so we don't want to go to the full 8
1670 if (minFilterSize < 5)
1673 // We really don't want to waste our time
1674 // doing useless computation, so fall back on
1675 // the scalar C code for very small filters.
1676 // Vectorizing is worth it only if you have a
1677 // decent-sized vector.
1678 if (minFilterSize < 3)
1682 if (flags & SWS_CPU_CAPS_MMX) {
1683 // special case for unscaled vertical filtering
1684 if (minFilterSize == 1 && filterAlign == 2)
1688 assert(minFilterSize > 0);
1689 filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
1690 assert(filterSize > 0);
1691 filter= av_malloc(filterSize*dstW*sizeof(*filter));
1692 if (filterSize >= MAX_FILTER_SIZE*16/((flags&SWS_ACCURATE_RND) ? APCK_SIZE : 16) || !filter)
1694 *outFilterSize= filterSize;
1696 if (flags&SWS_PRINT_INFO)
1697 av_log(NULL, AV_LOG_VERBOSE, "SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
1698 /* try to reduce the filter-size (step2 reduce it) */
1699 for (i=0; i<dstW; i++) {
1702 for (j=0; j<filterSize; j++) {
1703 if (j>=filter2Size) filter[i*filterSize + j]= 0;
1704 else filter[i*filterSize + j]= filter2[i*filter2Size + j];
1705 if((flags & SWS_BITEXACT) && j>=minFilterSize)
1706 filter[i*filterSize + j]= 0;
1711 //FIXME try to align filterPos if possible
1714 for (i=0; i<dstW; i++) {
1716 if ((*filterPos)[i] < 0) {
1717 // move filter coefficients left to compensate for filterPos
1718 for (j=1; j<filterSize; j++) {
1719 int left= FFMAX(j + (*filterPos)[i], 0);
1720 filter[i*filterSize + left] += filter[i*filterSize + j];
1721 filter[i*filterSize + j]=0;
1726 if ((*filterPos)[i] + filterSize > srcW) {
1727 int shift= (*filterPos)[i] + filterSize - srcW;
1728 // move filter coefficients right to compensate for filterPos
1729 for (j=filterSize-2; j>=0; j--) {
1730 int right= FFMIN(j + shift, filterSize-1);
1731 filter[i*filterSize +right] += filter[i*filterSize +j];
1732 filter[i*filterSize +j]=0;
1734 (*filterPos)[i]= srcW - filterSize;
1738 // Note the +1 is for the MMX scaler which reads over the end
1739 /* align at 16 for AltiVec (needed by hScale_altivec_real) */
1740 *outFilter= av_mallocz(*outFilterSize*(dstW+1)*sizeof(int16_t));
1742 /* normalize & store in outFilter */
1743 for (i=0; i<dstW; i++) {
1748 for (j=0; j<filterSize; j++) {
1749 sum+= filter[i*filterSize + j];
1751 sum= (sum + one/2)/ one;
1752 for (j=0; j<*outFilterSize; j++) {
1753 int64_t v= filter[i*filterSize + j] + error;
1754 int intV= ROUNDED_DIV(v, sum);
1755 (*outFilter)[i*(*outFilterSize) + j]= intV;
1756 error= v - intV*sum;
1760 (*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
1761 for (i=0; i<*outFilterSize; i++) {
1762 int j= dstW*(*outFilterSize);
1763 (*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
1774 static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits)
1777 x86_reg imm8OfPShufW1A;
1778 x86_reg imm8OfPShufW2A;
1779 x86_reg fragmentLengthA;
1781 x86_reg imm8OfPShufW1B;
1782 x86_reg imm8OfPShufW2B;
1783 x86_reg fragmentLengthB;
1788 // create an optimized horizontal scaling routine
1796 "movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
1797 "movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
1798 "movd 1(%%"REG_c", %%"REG_S"), %%mm1 \n\t"
1799 "punpcklbw %%mm7, %%mm1 \n\t"
1800 "punpcklbw %%mm7, %%mm0 \n\t"
1801 "pshufw $0xFF, %%mm1, %%mm1 \n\t"
1803 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1805 "psubw %%mm1, %%mm0 \n\t"
1806 "movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
1807 "pmullw %%mm3, %%mm0 \n\t"
1808 "psllw $7, %%mm1 \n\t"
1809 "paddw %%mm1, %%mm0 \n\t"
1811 "movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
1813 "add $8, %%"REG_a" \n\t"
1817 "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
1818 "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
1819 "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
1824 "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
1828 :"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
1829 "=r" (fragmentLengthA)
1836 "movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
1837 "movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
1838 "punpcklbw %%mm7, %%mm0 \n\t"
1839 "pshufw $0xFF, %%mm0, %%mm1 \n\t"
1841 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1843 "psubw %%mm1, %%mm0 \n\t"
1844 "movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
1845 "pmullw %%mm3, %%mm0 \n\t"
1846 "psllw $7, %%mm1 \n\t"
1847 "paddw %%mm1, %%mm0 \n\t"
1849 "movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
1851 "add $8, %%"REG_a" \n\t"
1855 "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
1856 "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
1857 "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
1862 "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
1866 :"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
1867 "=r" (fragmentLengthB)
1870 xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
1873 for (i=0; i<dstW/numSplits; i++) {
1878 int b=((xpos+xInc)>>16) - xx;
1879 int c=((xpos+xInc*2)>>16) - xx;
1880 int d=((xpos+xInc*3)>>16) - xx;
1882 uint8_t *fragment = (d+1<4) ? fragmentB : fragmentA;
1883 x86_reg imm8OfPShufW1 = (d+1<4) ? imm8OfPShufW1B : imm8OfPShufW1A;
1884 x86_reg imm8OfPShufW2 = (d+1<4) ? imm8OfPShufW2B : imm8OfPShufW2A;
1885 x86_reg fragmentLength = (d+1<4) ? fragmentLengthB : fragmentLengthA;
1886 int maxShift= 3-(d+inc);
1890 filter[i ] = (( xpos & 0xFFFF) ^ 0xFFFF)>>9;
1891 filter[i+1] = (((xpos+xInc ) & 0xFFFF) ^ 0xFFFF)>>9;
1892 filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
1893 filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
1896 memcpy(filterCode + fragmentPos, fragment, fragmentLength);
1898 filterCode[fragmentPos + imm8OfPShufW1]=
1899 (a+inc) | ((b+inc)<<2) | ((c+inc)<<4) | ((d+inc)<<6);
1900 filterCode[fragmentPos + imm8OfPShufW2]=
1901 a | (b<<2) | (c<<4) | (d<<6);
1903 if (i+4-inc>=dstW) shift=maxShift; //avoid overread
1904 else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
1906 if (shift && i>=shift) {
1907 filterCode[fragmentPos + imm8OfPShufW1]+= 0x55*shift;
1908 filterCode[fragmentPos + imm8OfPShufW2]+= 0x55*shift;
1909 filterPos[i/2]-=shift;
1913 fragmentPos+= fragmentLength;
1916 filterCode[fragmentPos]= RET;
1921 filterPos[((i/2)+1)&(~1)]= xpos>>16; // needed to jump to the next part
1923 return fragmentPos + 1;
1925 #endif /* COMPILE_MMX2 */
1927 static void globalInit(void)
1929 // generating tables:
1931 for (i=0; i<768; i++) {
1932 int c= av_clip_uint8(i-256);
1937 static SwsFunc getSwsFunc(SwsContext *c)
1939 #if CONFIG_RUNTIME_CPUDETECT
1940 int flags = c->flags;
1942 #if ARCH_X86 && CONFIG_GPL
1943 // ordered per speed fastest first
1944 if (flags & SWS_CPU_CAPS_MMX2) {
1945 sws_init_swScale_MMX2(c);
1946 return swScale_MMX2;
1947 } else if (flags & SWS_CPU_CAPS_3DNOW) {
1948 sws_init_swScale_3DNow(c);
1949 return swScale_3DNow;
1950 } else if (flags & SWS_CPU_CAPS_MMX) {
1951 sws_init_swScale_MMX(c);
1954 sws_init_swScale_C(c);
1960 if (flags & SWS_CPU_CAPS_ALTIVEC) {
1961 sws_init_swScale_altivec(c);
1962 return swScale_altivec;
1964 sws_init_swScale_C(c);
1968 sws_init_swScale_C(c);
1970 #endif /* ARCH_X86 && CONFIG_GPL */
1971 #else //CONFIG_RUNTIME_CPUDETECT
1972 #if COMPILE_TEMPLATE_MMX2
1973 sws_init_swScale_MMX2(c);
1974 return swScale_MMX2;
1975 #elif COMPILE_TEMPLATE_AMD3DNOW
1976 sws_init_swScale_3DNow(c);
1977 return swScale_3DNow;
1978 #elif COMPILE_TEMPLATE_MMX
1979 sws_init_swScale_MMX(c);
1981 #elif COMPILE_TEMPLATE_ALTIVEC
1982 sws_init_swScale_altivec(c);
1983 return swScale_altivec;
1985 sws_init_swScale_C(c);
1988 #endif //!CONFIG_RUNTIME_CPUDETECT
1991 static int PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1992 int srcSliceH, uint8_t* dstParam[], int dstStride[])
1994 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1996 if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
1997 memcpy(dst, src[0], srcSliceH*dstStride[0]);
2000 const uint8_t *srcPtr= src[0];
2001 uint8_t *dstPtr= dst;
2002 for (i=0; i<srcSliceH; i++) {
2003 memcpy(dstPtr, srcPtr, c->srcW);
2004 srcPtr+= srcStride[0];
2005 dstPtr+= dstStride[0];
2008 dst = dstParam[1] + dstStride[1]*srcSliceY/2;
2009 if (c->dstFormat == PIX_FMT_NV12)
2010 interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);
2012 interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);
2017 static int PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2018 int srcSliceH, uint8_t* dstParam[], int dstStride[])
2020 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
2022 yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
2027 static int PlanarToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2028 int srcSliceH, uint8_t* dstParam[], int dstStride[])
2030 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
2032 yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
2037 static int YUV422PToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2038 int srcSliceH, uint8_t* dstParam[], int dstStride[])
2040 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
2042 yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
2047 static int YUV422PToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2048 int srcSliceH, uint8_t* dstParam[], int dstStride[])
2050 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
2052 yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
2057 static int YUYV2YUV420Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2058 int srcSliceH, uint8_t* dstParam[], int dstStride[])
2060 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
2061 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
2062 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
2064 yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
2067 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
2072 static int YUYV2YUV422Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2073 int srcSliceH, uint8_t* dstParam[], int dstStride[])
2075 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
2076 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
2077 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
2079 yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
2084 static int UYVY2YUV420Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2085 int srcSliceH, uint8_t* dstParam[], int dstStride[])
2087 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
2088 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
2089 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
2091 uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
2094 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
2099 static int UYVY2YUV422Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2100 int srcSliceH, uint8_t* dstParam[], int dstStride[])
2102 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
2103 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
2104 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
2106 uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
2111 static int pal2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2112 int srcSliceH, uint8_t* dst[], int dstStride[])
2114 const enum PixelFormat srcFormat= c->srcFormat;
2115 const enum PixelFormat dstFormat= c->dstFormat;
2116 void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels,
2117 const uint8_t *palette)=NULL;
2119 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
2120 uint8_t *srcPtr= src[0];
2122 if (!usePal(srcFormat))
2123 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
2124 sws_format_name(srcFormat), sws_format_name(dstFormat));
2127 case PIX_FMT_RGB32 : conv = palette8topacked32; break;
2128 case PIX_FMT_BGR32 : conv = palette8topacked32; break;
2129 case PIX_FMT_BGR32_1: conv = palette8topacked32; break;
2130 case PIX_FMT_RGB32_1: conv = palette8topacked32; break;
2131 case PIX_FMT_RGB24 : conv = palette8topacked24; break;
2132 case PIX_FMT_BGR24 : conv = palette8topacked24; break;
2133 default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
2134 sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
2138 for (i=0; i<srcSliceH; i++) {
2139 conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
2140 srcPtr+= srcStride[0];
2141 dstPtr+= dstStride[0];
2147 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
2148 static int rgb2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2149 int srcSliceH, uint8_t* dst[], int dstStride[])
2151 const enum PixelFormat srcFormat= c->srcFormat;
2152 const enum PixelFormat dstFormat= c->dstFormat;
2153 const int srcBpp= (fmt_depth(srcFormat) + 7) >> 3;
2154 const int dstBpp= (fmt_depth(dstFormat) + 7) >> 3;
2155 const int srcId= fmt_depth(srcFormat) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
2156 const int dstId= fmt_depth(dstFormat) >> 2;
2157 void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
2160 if ( (isBGR(srcFormat) && isBGR(dstFormat))
2161 || (isRGB(srcFormat) && isRGB(dstFormat))) {
2162 switch(srcId | (dstId<<4)) {
2163 case 0x34: conv= rgb16to15; break;
2164 case 0x36: conv= rgb24to15; break;
2165 case 0x38: conv= rgb32to15; break;
2166 case 0x43: conv= rgb15to16; break;
2167 case 0x46: conv= rgb24to16; break;
2168 case 0x48: conv= rgb32to16; break;
2169 case 0x63: conv= rgb15to24; break;
2170 case 0x64: conv= rgb16to24; break;
2171 case 0x68: conv= rgb32to24; break;
2172 case 0x83: conv= rgb15to32; break;
2173 case 0x84: conv= rgb16to32; break;
2174 case 0x86: conv= rgb24to32; break;
2175 default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
2176 sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
2178 } else if ( (isBGR(srcFormat) && isRGB(dstFormat))
2179 || (isRGB(srcFormat) && isBGR(dstFormat))) {
2180 switch(srcId | (dstId<<4)) {
2181 case 0x33: conv= rgb15tobgr15; break;
2182 case 0x34: conv= rgb16tobgr15; break;
2183 case 0x36: conv= rgb24tobgr15; break;
2184 case 0x38: conv= rgb32tobgr15; break;
2185 case 0x43: conv= rgb15tobgr16; break;
2186 case 0x44: conv= rgb16tobgr16; break;
2187 case 0x46: conv= rgb24tobgr16; break;
2188 case 0x48: conv= rgb32tobgr16; break;
2189 case 0x63: conv= rgb15tobgr24; break;
2190 case 0x64: conv= rgb16tobgr24; break;
2191 case 0x66: conv= rgb24tobgr24; break;
2192 case 0x68: conv= rgb32tobgr24; break;
2193 case 0x83: conv= rgb15tobgr32; break;
2194 case 0x84: conv= rgb16tobgr32; break;
2195 case 0x86: conv= rgb24tobgr32; break;
2196 case 0x88: conv= rgb32tobgr32; break;
2197 default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
2198 sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
2201 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
2202 sws_format_name(srcFormat), sws_format_name(dstFormat));
2206 uint8_t *srcPtr= src[0];
2207 if(srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1)
2208 srcPtr += ALT32_CORR;
2210 if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)
2211 conv(srcPtr, dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
2214 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
2216 for (i=0; i<srcSliceH; i++) {
2217 conv(srcPtr, dstPtr, c->srcW*srcBpp);
2218 srcPtr+= srcStride[0];
2219 dstPtr+= dstStride[0];
2226 static int bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2227 int srcSliceH, uint8_t* dst[], int dstStride[])
2232 dst[0]+ srcSliceY *dstStride[0],
2233 dst[1]+(srcSliceY>>1)*dstStride[1],
2234 dst[2]+(srcSliceY>>1)*dstStride[2],
2236 dstStride[0], dstStride[1], srcStride[0]);
2238 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
2242 static int yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2243 int srcSliceH, uint8_t* dst[], int dstStride[])
2248 if (srcStride[0]==dstStride[0] && srcStride[0] > 0)
2249 memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
2251 uint8_t *srcPtr= src[0];
2252 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
2254 for (i=0; i<srcSliceH; i++) {
2255 memcpy(dstPtr, srcPtr, c->srcW);
2256 srcPtr+= srcStride[0];
2257 dstPtr+= dstStride[0];
2261 if (c->dstFormat==PIX_FMT_YUV420P || c->dstFormat==PIX_FMT_YUVA420P) {
2262 planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
2263 srcSliceH >> 2, srcStride[1], dstStride[1]);
2264 planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
2265 srcSliceH >> 2, srcStride[2], dstStride[2]);
2267 planar2x(src[1], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
2268 srcSliceH >> 2, srcStride[1], dstStride[2]);
2269 planar2x(src[2], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
2270 srcSliceH >> 2, srcStride[2], dstStride[1]);
2273 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
2277 /* unscaled copy like stuff (assumes nearly identical formats) */
2278 static int packedCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2279 int srcSliceH, uint8_t* dst[], int dstStride[])
2281 if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
2282 memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
2285 uint8_t *srcPtr= src[0];
2286 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
2289 /* universal length finder */
2290 while(length+c->srcW <= FFABS(dstStride[0])
2291 && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
2294 for (i=0; i<srcSliceH; i++) {
2295 memcpy(dstPtr, srcPtr, length);
2296 srcPtr+= srcStride[0];
2297 dstPtr+= dstStride[0];
2303 static int planarCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2304 int srcSliceH, uint8_t* dst[], int dstStride[])
2307 for (plane=0; plane<4; plane++) {
2308 int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
2309 int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
2310 int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
2311 uint8_t *srcPtr= src[plane];
2312 uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
2314 if (!dst[plane]) continue;
2315 // ignore palette for GRAY8
2316 if (plane == 1 && !dst[2]) continue;
2317 if (!src[plane] || (plane == 1 && !src[2])) {
2318 if(is16BPS(c->dstFormat))
2320 fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);
2322 if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {
2323 if (!isBE(c->srcFormat)) srcPtr++;
2324 for (i=0; i<height; i++) {
2325 for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
2326 srcPtr+= srcStride[plane];
2327 dstPtr+= dstStride[plane];
2329 } else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {
2330 for (i=0; i<height; i++) {
2331 for (j=0; j<length; j++) {
2332 dstPtr[ j<<1 ] = srcPtr[j];
2333 dstPtr[(j<<1)+1] = srcPtr[j];
2335 srcPtr+= srcStride[plane];
2336 dstPtr+= dstStride[plane];
2338 } else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)
2339 && isBE(c->srcFormat) != isBE(c->dstFormat)) {
2341 for (i=0; i<height; i++) {
2342 for (j=0; j<length; j++)
2343 ((uint16_t*)dstPtr)[j] = bswap_16(((uint16_t*)srcPtr)[j]);
2344 srcPtr+= srcStride[plane];
2345 dstPtr+= dstStride[plane];
2347 } else if (dstStride[plane]==srcStride[plane] && srcStride[plane] > 0)
2348 memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
2350 if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
2352 for (i=0; i<height; i++) {
2353 memcpy(dstPtr, srcPtr, length);
2354 srcPtr+= srcStride[plane];
2355 dstPtr+= dstStride[plane];
2364 static void getSubSampleFactors(int *h, int *v, int format)
2367 case PIX_FMT_UYVY422:
2368 case PIX_FMT_YUYV422:
2372 case PIX_FMT_YUV420P:
2373 case PIX_FMT_YUV420PLE:
2374 case PIX_FMT_YUV420PBE:
2375 case PIX_FMT_YUVA420P:
2376 case PIX_FMT_GRAY16BE:
2377 case PIX_FMT_GRAY16LE:
2378 case PIX_FMT_GRAY8: //FIXME remove after different subsamplings are fully implemented
2384 case PIX_FMT_YUV440P:
2388 case PIX_FMT_YUV410P:
2392 case PIX_FMT_YUV444P:
2393 case PIX_FMT_YUV444PLE:
2394 case PIX_FMT_YUV444PBE:
2398 case PIX_FMT_YUV422P:
2399 case PIX_FMT_YUV422PLE:
2400 case PIX_FMT_YUV422PBE:
2404 case PIX_FMT_YUV411P:
2415 static uint16_t roundToInt16(int64_t f)
2417 int r= (f + (1<<15))>>16;
2418 if (r<-0x7FFF) return 0x8000;
2419 else if (r> 0x7FFF) return 0x7FFF;
2423 int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation)
2425 int64_t crv = inv_table[0];
2426 int64_t cbu = inv_table[1];
2427 int64_t cgu = -inv_table[2];
2428 int64_t cgv = -inv_table[3];
2432 memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
2433 memcpy(c->dstColorspaceTable, table, sizeof(int)*4);
2435 c->brightness= brightness;
2436 c->contrast = contrast;
2437 c->saturation= saturation;
2438 c->srcRange = srcRange;
2439 c->dstRange = dstRange;
2440 if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
2442 c->uOffset= 0x0400040004000400LL;
2443 c->vOffset= 0x0400040004000400LL;
2449 crv= (crv*224) / 255;
2450 cbu= (cbu*224) / 255;
2451 cgu= (cgu*224) / 255;
2452 cgv= (cgv*224) / 255;
2455 cy = (cy *contrast )>>16;
2456 crv= (crv*contrast * saturation)>>32;
2457 cbu= (cbu*contrast * saturation)>>32;
2458 cgu= (cgu*contrast * saturation)>>32;
2459 cgv= (cgv*contrast * saturation)>>32;
2461 oy -= 256*brightness;
2463 c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
2464 c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
2465 c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
2466 c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
2467 c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
2468 c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
2470 c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13);
2471 c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
2472 c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13);
2473 c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13);
2474 c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13);
2475 c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13);
2477 ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
2480 #ifdef COMPILE_ALTIVEC
2481 if (c->flags & SWS_CPU_CAPS_ALTIVEC)
2482 ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness, contrast, saturation);
2487 int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation)
2489 if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
2491 *inv_table = c->srcColorspaceTable;
2492 *table = c->dstColorspaceTable;
2493 *srcRange = c->srcRange;
2494 *dstRange = c->dstRange;
2495 *brightness= c->brightness;
2496 *contrast = c->contrast;
2497 *saturation= c->saturation;
2502 static int handle_jpeg(enum PixelFormat *format)
2505 case PIX_FMT_YUVJ420P:
2506 *format = PIX_FMT_YUV420P;
2508 case PIX_FMT_YUVJ422P:
2509 *format = PIX_FMT_YUV422P;
2511 case PIX_FMT_YUVJ444P:
2512 *format = PIX_FMT_YUV444P;
2514 case PIX_FMT_YUVJ440P:
2515 *format = PIX_FMT_YUV440P;
2522 SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int dstW, int dstH, enum PixelFormat dstFormat, int flags,
2523 SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
2528 int usesVFilter, usesHFilter;
2529 int unscaled, needsDither;
2530 int srcRange, dstRange;
2531 SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
2533 if (flags & SWS_CPU_CAPS_MMX)
2534 __asm__ volatile("emms\n\t"::: "memory");
2537 #if !CONFIG_RUNTIME_CPUDETECT //ensure that the flags match the compiled variant if cpudetect is off
2538 flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC|SWS_CPU_CAPS_BFIN);
2539 #if COMPILE_TEMPLATE_MMX2
2540 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
2541 #elif COMPILE_TEMPLATE_AMD3DNOW
2542 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
2543 #elif COMPILE_TEMPLATE_MMX
2544 flags |= SWS_CPU_CAPS_MMX;
2545 #elif COMPILE_TEMPLATE_ALTIVEC
2546 flags |= SWS_CPU_CAPS_ALTIVEC;
2548 flags |= SWS_CPU_CAPS_BFIN;
2550 #endif /* CONFIG_RUNTIME_CPUDETECT */
2551 if (clip_table[512] != 255) globalInit();
2552 if (!rgb15to16) sws_rgb2rgb_init(flags);
2554 unscaled = (srcW == dstW && srcH == dstH);
2555 needsDither= (isBGR(dstFormat) || isRGB(dstFormat))
2556 && (fmt_depth(dstFormat))<24
2557 && ((fmt_depth(dstFormat))<(fmt_depth(srcFormat)) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
2559 srcRange = handle_jpeg(&srcFormat);
2560 dstRange = handle_jpeg(&dstFormat);
2562 if (!isSupportedIn(srcFormat)) {
2563 av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as input pixel format\n", sws_format_name(srcFormat));
2566 if (!isSupportedOut(dstFormat)) {
2567 av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as output pixel format\n", sws_format_name(dstFormat));
2571 i= flags & ( SWS_POINT
2582 if(!i || (i & (i-1))) {
2583 av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be chosen\n");
2588 if (srcW<4 || srcH<1 || dstW<8 || dstH<1) { //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
2589 av_log(NULL, AV_LOG_ERROR, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
2590 srcW, srcH, dstW, dstH);
2593 if(srcW > VOFW || dstW > VOFW) {
2594 av_log(NULL, AV_LOG_ERROR, "swScaler: Compile-time maximum width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n");
2598 if (!dstFilter) dstFilter= &dummyFilter;
2599 if (!srcFilter) srcFilter= &dummyFilter;
2601 c= av_mallocz(sizeof(SwsContext));
2603 c->av_class = &sws_context_class;
2608 c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW;
2609 c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH;
2611 c->dstFormat= dstFormat;
2612 c->srcFormat= srcFormat;
2613 c->vRounder= 4* 0x0001000100010001ULL;
2615 usesHFilter= usesVFilter= 0;
2616 if (dstFilter->lumV && dstFilter->lumV->length>1) usesVFilter=1;
2617 if (dstFilter->lumH && dstFilter->lumH->length>1) usesHFilter=1;
2618 if (dstFilter->chrV && dstFilter->chrV->length>1) usesVFilter=1;
2619 if (dstFilter->chrH && dstFilter->chrH->length>1) usesHFilter=1;
2620 if (srcFilter->lumV && srcFilter->lumV->length>1) usesVFilter=1;
2621 if (srcFilter->lumH && srcFilter->lumH->length>1) usesHFilter=1;
2622 if (srcFilter->chrV && srcFilter->chrV->length>1) usesVFilter=1;
2623 if (srcFilter->chrH && srcFilter->chrH->length>1) usesHFilter=1;
2625 getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
2626 getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
2628 // reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation
2629 if ((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
2631 // drop some chroma lines if the user wants it
2632 c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
2633 c->chrSrcVSubSample+= c->vChrDrop;
2635 // drop every other pixel for chroma calculation unless user wants full chroma
2636 if ((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP)
2637 && srcFormat!=PIX_FMT_RGB8 && srcFormat!=PIX_FMT_BGR8
2638 && srcFormat!=PIX_FMT_RGB4 && srcFormat!=PIX_FMT_BGR4
2639 && srcFormat!=PIX_FMT_RGB4_BYTE && srcFormat!=PIX_FMT_BGR4_BYTE
2640 && ((dstW>>c->chrDstHSubSample) <= (srcW>>1) || (flags&(SWS_FAST_BILINEAR|SWS_POINT))))
2641 c->chrSrcHSubSample=1;
2644 c->param[0] = param[0];
2645 c->param[1] = param[1];
2648 c->param[1] = SWS_PARAM_DEFAULT;
2651 // Note the -((-x)>>y) is so that we always round toward +inf.
2652 c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
2653 c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
2654 c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
2655 c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
2657 sws_setColorspaceDetails(c, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], srcRange, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16);
2659 /* unscaled special cases */
2660 if (unscaled && !usesHFilter && !usesVFilter && (srcRange == dstRange || isBGR(dstFormat) || isRGB(dstFormat))) {
2662 if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {
2663 c->swScale= PlanarToNV12Wrapper;
2666 if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && (isBGR(dstFormat) || isRGB(dstFormat))
2667 && !(flags & SWS_ACCURATE_RND) && !(dstH&1)) {
2668 c->swScale= ff_yuv2rgb_get_func_ptr(c);
2671 if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) {
2672 c->swScale= yvu9toyv12Wrapper;
2676 if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))
2677 c->swScale= bgr24toyv12Wrapper;
2679 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
2680 if ( (isBGR(srcFormat) || isRGB(srcFormat))
2681 && (isBGR(dstFormat) || isRGB(dstFormat))
2682 && srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
2683 && srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
2684 && srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
2685 && srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
2686 && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
2687 && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
2688 && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
2689 && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE
2690 && dstFormat != PIX_FMT_RGB32_1
2691 && dstFormat != PIX_FMT_BGR32_1
2692 && srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE
2693 && srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE
2694 && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
2695 c->swScale= rgb2rgbWrapper;
2697 if ((usePal(srcFormat) && (
2698 dstFormat == PIX_FMT_RGB32 ||
2699 dstFormat == PIX_FMT_RGB32_1 ||
2700 dstFormat == PIX_FMT_RGB24 ||
2701 dstFormat == PIX_FMT_BGR32 ||
2702 dstFormat == PIX_FMT_BGR32_1 ||
2703 dstFormat == PIX_FMT_BGR24)))
2704 c->swScale= pal2rgbWrapper;
2706 if (srcFormat == PIX_FMT_YUV422P) {
2707 if (dstFormat == PIX_FMT_YUYV422)
2708 c->swScale= YUV422PToYuy2Wrapper;
2709 else if (dstFormat == PIX_FMT_UYVY422)
2710 c->swScale= YUV422PToUyvyWrapper;
2713 /* LQ converters if -sws 0 or -sws 4*/
2714 if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
2716 if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) {
2717 if (dstFormat == PIX_FMT_YUYV422)
2718 c->swScale= PlanarToYuy2Wrapper;
2719 else if (dstFormat == PIX_FMT_UYVY422)
2720 c->swScale= PlanarToUyvyWrapper;
2723 if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
2724 c->swScale= YUYV2YUV420Wrapper;
2725 if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
2726 c->swScale= UYVY2YUV420Wrapper;
2727 if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
2728 c->swScale= YUYV2YUV422Wrapper;
2729 if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
2730 c->swScale= UYVY2YUV422Wrapper;
2732 #ifdef COMPILE_ALTIVEC
2733 if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
2734 !(c->flags & SWS_BITEXACT) &&
2735 srcFormat == PIX_FMT_YUV420P) {
2736 // unscaled YV12 -> packed YUV, we want speed
2737 if (dstFormat == PIX_FMT_YUYV422)
2738 c->swScale= yv12toyuy2_unscaled_altivec;
2739 else if (dstFormat == PIX_FMT_UYVY422)
2740 c->swScale= yv12touyvy_unscaled_altivec;
2745 if ( srcFormat == dstFormat
2746 || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)
2747 || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)
2748 || (isPlanarYUV(srcFormat) && isGray(dstFormat))
2749 || (isPlanarYUV(dstFormat) && isGray(srcFormat))
2750 || (isGray(dstFormat) && isGray(srcFormat))
2751 || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)
2752 && c->chrDstHSubSample == c->chrSrcHSubSample
2753 && c->chrDstVSubSample == c->chrSrcVSubSample
2754 && dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21
2755 && srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21))
2757 if (isPacked(c->srcFormat))
2758 c->swScale= packedCopy;
2759 else /* Planar YUV or gray */
2760 c->swScale= planarCopy;
2763 if (flags & SWS_CPU_CAPS_BFIN)
2764 ff_bfin_get_unscaled_swscale (c);
2768 if (flags&SWS_PRINT_INFO)
2769 av_log(c, AV_LOG_INFO, "using unscaled %s -> %s special converter\n",
2770 sws_format_name(srcFormat), sws_format_name(dstFormat));
2775 if (flags & SWS_CPU_CAPS_MMX2) {
2776 c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
2777 if (!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR)) {
2778 if (flags&SWS_PRINT_INFO)
2779 av_log(c, AV_LOG_INFO, "output width is not a multiple of 32 -> no MMX2 scaler\n");
2781 if (usesHFilter) c->canMMX2BeUsed=0;
2786 c->chrXInc= ((c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
2787 c->chrYInc= ((c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
2789 // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
2790 // but only for the FAST_BILINEAR mode otherwise do correct scaling
2791 // n-2 is the last chrominance sample available
2792 // this is not perfect, but no one should notice the difference, the more correct variant
2793 // would be like the vertical one, but that would require some special code for the
2794 // first and last pixel
2795 if (flags&SWS_FAST_BILINEAR) {
2796 if (c->canMMX2BeUsed) {
2800 //we don't use the x86 asm scaler if MMX is available
2801 else if (flags & SWS_CPU_CAPS_MMX) {
2802 c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
2803 c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
2807 /* precalculate horizontal scaler filter coefficients */
2809 const int filterAlign=
2810 (flags & SWS_CPU_CAPS_MMX) ? 4 :
2811 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
2814 initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
2815 srcW , dstW, filterAlign, 1<<14,
2816 (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
2817 srcFilter->lumH, dstFilter->lumH, c->param);
2818 initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
2819 c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
2820 (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
2821 srcFilter->chrH, dstFilter->chrH, c->param);
2823 #if defined(COMPILE_MMX2)
2824 // can't downscale !!!
2825 if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR)) {
2826 c->lumMmx2FilterCodeSize = initMMX2HScaler( dstW, c->lumXInc, NULL, NULL, NULL, 8);
2827 c->chrMmx2FilterCodeSize = initMMX2HScaler(c->chrDstW, c->chrXInc, NULL, NULL, NULL, 4);
2829 #ifdef MAP_ANONYMOUS
2830 c->lumMmx2FilterCode = mmap(NULL, c->lumMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
2831 c->chrMmx2FilterCode = mmap(NULL, c->chrMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
2832 #elif HAVE_VIRTUALALLOC
2833 c->lumMmx2FilterCode = VirtualAlloc(NULL, c->lumMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
2834 c->chrMmx2FilterCode = VirtualAlloc(NULL, c->chrMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
2836 c->lumMmx2FilterCode = av_malloc(c->lumMmx2FilterCodeSize);
2837 c->chrMmx2FilterCode = av_malloc(c->chrMmx2FilterCodeSize);
2840 c->lumMmx2Filter = av_malloc((dstW /8+8)*sizeof(int16_t));
2841 c->chrMmx2Filter = av_malloc((c->chrDstW /4+8)*sizeof(int16_t));
2842 c->lumMmx2FilterPos= av_malloc((dstW /2/8+8)*sizeof(int32_t));
2843 c->chrMmx2FilterPos= av_malloc((c->chrDstW/2/4+8)*sizeof(int32_t));
2845 initMMX2HScaler( dstW, c->lumXInc, c->lumMmx2FilterCode, c->lumMmx2Filter, c->lumMmx2FilterPos, 8);
2846 initMMX2HScaler(c->chrDstW, c->chrXInc, c->chrMmx2FilterCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
2848 #ifdef MAP_ANONYMOUS
2849 mprotect(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, PROT_EXEC | PROT_READ);
2850 mprotect(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, PROT_EXEC | PROT_READ);
2853 #endif /* defined(COMPILE_MMX2) */
2854 } // initialize horizontal stuff
2858 /* precalculate vertical scaler filter coefficients */
2860 const int filterAlign=
2861 (flags & SWS_CPU_CAPS_MMX) && (flags & SWS_ACCURATE_RND) ? 2 :
2862 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
2865 initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
2866 srcH , dstH, filterAlign, (1<<12),
2867 (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
2868 srcFilter->lumV, dstFilter->lumV, c->param);
2869 initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
2870 c->chrSrcH, c->chrDstH, filterAlign, (1<<12),
2871 (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
2872 srcFilter->chrV, dstFilter->chrV, c->param);
2874 #ifdef COMPILE_ALTIVEC
2875 c->vYCoeffsBank = av_malloc(sizeof (vector signed short)*c->vLumFilterSize*c->dstH);
2876 c->vCCoeffsBank = av_malloc(sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH);
2878 for (i=0;i<c->vLumFilterSize*c->dstH;i++) {
2880 short *p = (short *)&c->vYCoeffsBank[i];
2882 p[j] = c->vLumFilter[i];
2885 for (i=0;i<c->vChrFilterSize*c->chrDstH;i++) {
2887 short *p = (short *)&c->vCCoeffsBank[i];
2889 p[j] = c->vChrFilter[i];
2894 // calculate buffer sizes so that they won't run out while handling these damn slices
2895 c->vLumBufSize= c->vLumFilterSize;
2896 c->vChrBufSize= c->vChrFilterSize;
2897 for (i=0; i<dstH; i++) {
2898 int chrI= i*c->chrDstH / dstH;
2899 int nextSlice= FFMAX(c->vLumFilterPos[i ] + c->vLumFilterSize - 1,
2900 ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
2902 nextSlice>>= c->chrSrcVSubSample;
2903 nextSlice<<= c->chrSrcVSubSample;
2904 if (c->vLumFilterPos[i ] + c->vLumBufSize < nextSlice)
2905 c->vLumBufSize= nextSlice - c->vLumFilterPos[i];
2906 if (c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
2907 c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
2910 // allocate pixbufs (we use dynamic allocation because otherwise we would need to
2911 c->lumPixBuf= av_malloc(c->vLumBufSize*2*sizeof(int16_t*));
2912 c->chrPixBuf= av_malloc(c->vChrBufSize*2*sizeof(int16_t*));
2913 if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat))
2914 c->alpPixBuf= av_malloc(c->vLumBufSize*2*sizeof(int16_t*));
2915 //Note we need at least one pixel more at the end because of the MMX code (just in case someone wanna replace the 4000/8000)
2916 /* align at 16 bytes for AltiVec */
2917 for (i=0; i<c->vLumBufSize; i++)
2918 c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= av_mallocz(VOF+1);
2919 for (i=0; i<c->vChrBufSize; i++)
2920 c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= av_malloc((VOF+1)*2);
2921 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf)
2922 for (i=0; i<c->vLumBufSize; i++)
2923 c->alpPixBuf[i]= c->alpPixBuf[i+c->vLumBufSize]= av_mallocz(VOF+1);
2925 //try to avoid drawing green stuff between the right end and the stride end
2926 for (i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, (VOF+1)*2);
2928 assert(2*VOFW == VOF);
2930 assert(c->chrDstH <= dstH);
2932 if (flags&SWS_PRINT_INFO) {
2934 const char *dither= " dithered";
2936 const char *dither= "";
2938 if (flags&SWS_FAST_BILINEAR)
2939 av_log(c, AV_LOG_INFO, "FAST_BILINEAR scaler, ");
2940 else if (flags&SWS_BILINEAR)
2941 av_log(c, AV_LOG_INFO, "BILINEAR scaler, ");
2942 else if (flags&SWS_BICUBIC)
2943 av_log(c, AV_LOG_INFO, "BICUBIC scaler, ");
2944 else if (flags&SWS_X)
2945 av_log(c, AV_LOG_INFO, "Experimental scaler, ");
2946 else if (flags&SWS_POINT)
2947 av_log(c, AV_LOG_INFO, "Nearest Neighbor / POINT scaler, ");
2948 else if (flags&SWS_AREA)
2949 av_log(c, AV_LOG_INFO, "Area Averageing scaler, ");
2950 else if (flags&SWS_BICUBLIN)
2951 av_log(c, AV_LOG_INFO, "luma BICUBIC / chroma BILINEAR scaler, ");
2952 else if (flags&SWS_GAUSS)
2953 av_log(c, AV_LOG_INFO, "Gaussian scaler, ");
2954 else if (flags&SWS_SINC)
2955 av_log(c, AV_LOG_INFO, "Sinc scaler, ");
2956 else if (flags&SWS_LANCZOS)
2957 av_log(c, AV_LOG_INFO, "Lanczos scaler, ");
2958 else if (flags&SWS_SPLINE)
2959 av_log(c, AV_LOG_INFO, "Bicubic spline scaler, ");
2961 av_log(c, AV_LOG_INFO, "ehh flags invalid?! ");
2963 if (dstFormat==PIX_FMT_BGR555 || dstFormat==PIX_FMT_BGR565)
2964 av_log(c, AV_LOG_INFO, "from %s to%s %s ",
2965 sws_format_name(srcFormat), dither, sws_format_name(dstFormat));
2967 av_log(c, AV_LOG_INFO, "from %s to %s ",
2968 sws_format_name(srcFormat), sws_format_name(dstFormat));
2970 if (flags & SWS_CPU_CAPS_MMX2)
2971 av_log(c, AV_LOG_INFO, "using MMX2\n");
2972 else if (flags & SWS_CPU_CAPS_3DNOW)
2973 av_log(c, AV_LOG_INFO, "using 3DNOW\n");
2974 else if (flags & SWS_CPU_CAPS_MMX)
2975 av_log(c, AV_LOG_INFO, "using MMX\n");
2976 else if (flags & SWS_CPU_CAPS_ALTIVEC)
2977 av_log(c, AV_LOG_INFO, "using AltiVec\n");
2979 av_log(c, AV_LOG_INFO, "using C\n");
2982 if (flags & SWS_PRINT_INFO) {
2983 if (flags & SWS_CPU_CAPS_MMX) {
2984 if (c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
2985 av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
2987 if (c->hLumFilterSize==4)
2988 av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal luminance scaling\n");
2989 else if (c->hLumFilterSize==8)
2990 av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal luminance scaling\n");
2992 av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal luminance scaling\n");
2994 if (c->hChrFilterSize==4)
2995 av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal chrominance scaling\n");
2996 else if (c->hChrFilterSize==8)
2997 av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal chrominance scaling\n");
2999 av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal chrominance scaling\n");
3003 av_log(c, AV_LOG_VERBOSE, "using x86 asm scaler for horizontal scaling\n");
3005 if (flags & SWS_FAST_BILINEAR)
3006 av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR C scaler for horizontal scaling\n");
3008 av_log(c, AV_LOG_VERBOSE, "using C scaler for horizontal scaling\n");
3011 if (isPlanarYUV(dstFormat)) {
3012 if (c->vLumFilterSize==1)
3013 av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
3015 av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
3017 if (c->vLumFilterSize==1 && c->vChrFilterSize==2)
3018 av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
3019 " 2-tap scaler for vertical chrominance scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
3020 else if (c->vLumFilterSize==2 && c->vChrFilterSize==2)
3021 av_log(c, AV_LOG_VERBOSE, "using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
3023 av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
3026 if (dstFormat==PIX_FMT_BGR24)
3027 av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR24 converter\n",
3028 (flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
3029 else if (dstFormat==PIX_FMT_RGB32)
3030 av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR32 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
3031 else if (dstFormat==PIX_FMT_BGR565)
3032 av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR16 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
3033 else if (dstFormat==PIX_FMT_BGR555)
3034 av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR15 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
3036 av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
3038 if (flags & SWS_PRINT_INFO) {
3039 av_log(c, AV_LOG_DEBUG, "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
3040 c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
3041 av_log(c, AV_LOG_DEBUG, "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
3042 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
3045 c->swScale= getSwsFunc(c);
3049 static void reset_ptr(uint8_t* src[], int format)
3051 if(!isALPHA(format))
3053 if(!isPlanarYUV(format)) {
3055 if( format != PIX_FMT_PAL8
3056 && format != PIX_FMT_RGB8
3057 && format != PIX_FMT_BGR8
3058 && format != PIX_FMT_RGB4_BYTE
3059 && format != PIX_FMT_BGR4_BYTE
3066 * swscale wrapper, so we don't need to export the SwsContext.
3067 * Assumes planar YUV to be in YUV order instead of YVU.
3069 int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
3070 int srcSliceH, uint8_t* dst[], int dstStride[])
3073 uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};
3074 uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};
3076 if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
3077 av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
3080 if (c->sliceDir == 0) {
3081 if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
3084 if (usePal(c->srcFormat)) {
3085 for (i=0; i<256; i++) {
3086 int p, r, g, b,y,u,v;
3087 if(c->srcFormat == PIX_FMT_PAL8) {
3088 p=((uint32_t*)(src[1]))[i];
3092 } else if(c->srcFormat == PIX_FMT_RGB8) {
3096 } else if(c->srcFormat == PIX_FMT_BGR8) {
3100 } else if(c->srcFormat == PIX_FMT_RGB4_BYTE) {
3105 assert(c->srcFormat == PIX_FMT_BGR4_BYTE);
3110 y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
3111 u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
3112 v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
3113 c->pal_yuv[i]= y + (u<<8) + (v<<16);
3116 switch(c->dstFormat) {
3121 c->pal_rgb[i]= r + (g<<8) + (b<<16);
3123 case PIX_FMT_BGR32_1:
3127 c->pal_rgb[i]= (r + (g<<8) + (b<<16)) << 8;
3129 case PIX_FMT_RGB32_1:
3133 c->pal_rgb[i]= (b + (g<<8) + (r<<16)) << 8;
3140 c->pal_rgb[i]= b + (g<<8) + (r<<16);
3145 // copy strides, so they can safely be modified
3146 if (c->sliceDir == 1) {
3147 // slices go from top to bottom
3148 int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};
3149 int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};
3151 reset_ptr(src2, c->srcFormat);
3152 reset_ptr(dst2, c->dstFormat);
3154 return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);
3156 // slices go from bottom to top => we flip the image internally
3157 int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]};
3158 int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]};
3160 src2[0] += (srcSliceH-1)*srcStride[0];
3161 if (!usePal(c->srcFormat))
3162 src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
3163 src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
3164 src2[3] += (srcSliceH-1)*srcStride[3];
3165 dst2[0] += ( c->dstH -1)*dstStride[0];
3166 dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];
3167 dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];
3168 dst2[3] += ( c->dstH -1)*dstStride[3];
3170 reset_ptr(src2, c->srcFormat);
3171 reset_ptr(dst2, c->dstFormat);
3173 return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
3177 #if LIBSWSCALE_VERSION_MAJOR < 1
3178 int sws_scale_ordered(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
3179 int srcSliceH, uint8_t* dst[], int dstStride[])
3181 return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
3185 SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
3186 float lumaSharpen, float chromaSharpen,
3187 float chromaHShift, float chromaVShift,
3190 SwsFilter *filter= av_malloc(sizeof(SwsFilter));
3192 if (lumaGBlur!=0.0) {
3193 filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
3194 filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
3196 filter->lumH= sws_getIdentityVec();
3197 filter->lumV= sws_getIdentityVec();
3200 if (chromaGBlur!=0.0) {
3201 filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
3202 filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
3204 filter->chrH= sws_getIdentityVec();
3205 filter->chrV= sws_getIdentityVec();
3208 if (chromaSharpen!=0.0) {
3209 SwsVector *id= sws_getIdentityVec();
3210 sws_scaleVec(filter->chrH, -chromaSharpen);
3211 sws_scaleVec(filter->chrV, -chromaSharpen);
3212 sws_addVec(filter->chrH, id);
3213 sws_addVec(filter->chrV, id);
3217 if (lumaSharpen!=0.0) {
3218 SwsVector *id= sws_getIdentityVec();
3219 sws_scaleVec(filter->lumH, -lumaSharpen);
3220 sws_scaleVec(filter->lumV, -lumaSharpen);
3221 sws_addVec(filter->lumH, id);
3222 sws_addVec(filter->lumV, id);
3226 if (chromaHShift != 0.0)
3227 sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
3229 if (chromaVShift != 0.0)
3230 sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
3232 sws_normalizeVec(filter->chrH, 1.0);
3233 sws_normalizeVec(filter->chrV, 1.0);
3234 sws_normalizeVec(filter->lumH, 1.0);
3235 sws_normalizeVec(filter->lumV, 1.0);
3237 if (verbose) sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
3238 if (verbose) sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
3243 SwsVector *sws_allocVec(int length)
3245 SwsVector *vec = av_malloc(sizeof(SwsVector));
3248 vec->length = length;
3249 vec->coeff = av_malloc(sizeof(double) * length);
3255 SwsVector *sws_getGaussianVec(double variance, double quality)
3257 const int length= (int)(variance*quality + 0.5) | 1;
3259 double middle= (length-1)*0.5;
3260 SwsVector *vec= sws_allocVec(length);
3265 for (i=0; i<length; i++) {
3266 double dist= i-middle;
3267 vec->coeff[i]= exp(-dist*dist/(2*variance*variance)) / sqrt(2*variance*PI);
3270 sws_normalizeVec(vec, 1.0);
3275 SwsVector *sws_getConstVec(double c, int length)
3278 SwsVector *vec= sws_allocVec(length);
3283 for (i=0; i<length; i++)
3290 SwsVector *sws_getIdentityVec(void)
3292 return sws_getConstVec(1.0, 1);
3295 double sws_dcVec(SwsVector *a)
3300 for (i=0; i<a->length; i++)
3306 void sws_scaleVec(SwsVector *a, double scalar)
3310 for (i=0; i<a->length; i++)
3311 a->coeff[i]*= scalar;
3314 void sws_normalizeVec(SwsVector *a, double height)
3316 sws_scaleVec(a, height/sws_dcVec(a));
3319 static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b)
3321 int length= a->length + b->length - 1;
3323 SwsVector *vec= sws_getConstVec(0.0, length);
3328 for (i=0; i<a->length; i++) {
3329 for (j=0; j<b->length; j++) {
3330 vec->coeff[i+j]+= a->coeff[i]*b->coeff[j];
3337 static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
3339 int length= FFMAX(a->length, b->length);
3341 SwsVector *vec= sws_getConstVec(0.0, length);
3346 for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
3347 for (i=0; i<b->length; i++) vec->coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
3352 static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b)
3354 int length= FFMAX(a->length, b->length);
3356 SwsVector *vec= sws_getConstVec(0.0, length);
3361 for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
3362 for (i=0; i<b->length; i++) vec->coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
3367 /* shift left / or right if "shift" is negative */
3368 static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
3370 int length= a->length + FFABS(shift)*2;
3372 SwsVector *vec= sws_getConstVec(0.0, length);
3377 for (i=0; i<a->length; i++) {
3378 vec->coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
3384 void sws_shiftVec(SwsVector *a, int shift)
3386 SwsVector *shifted= sws_getShiftedVec(a, shift);
3388 a->coeff= shifted->coeff;
3389 a->length= shifted->length;
3393 void sws_addVec(SwsVector *a, SwsVector *b)
3395 SwsVector *sum= sws_sumVec(a, b);
3397 a->coeff= sum->coeff;
3398 a->length= sum->length;
3402 void sws_subVec(SwsVector *a, SwsVector *b)
3404 SwsVector *diff= sws_diffVec(a, b);
3406 a->coeff= diff->coeff;
3407 a->length= diff->length;
3411 void sws_convVec(SwsVector *a, SwsVector *b)
3413 SwsVector *conv= sws_getConvVec(a, b);
3415 a->coeff= conv->coeff;
3416 a->length= conv->length;
3420 SwsVector *sws_cloneVec(SwsVector *a)
3423 SwsVector *vec= sws_allocVec(a->length);
3428 for (i=0; i<a->length; i++) vec->coeff[i]= a->coeff[i];
3433 void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
3440 for (i=0; i<a->length; i++)
3441 if (a->coeff[i]>max) max= a->coeff[i];
3443 for (i=0; i<a->length; i++)
3444 if (a->coeff[i]<min) min= a->coeff[i];
3448 for (i=0; i<a->length; i++) {
3449 int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
3450 av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
3451 for (;x>0; x--) av_log(log_ctx, log_level, " ");
3452 av_log(log_ctx, log_level, "|\n");
3456 #if LIBSWSCALE_VERSION_MAJOR < 1
3457 void sws_printVec(SwsVector *a)
3459 sws_printVec2(a, NULL, AV_LOG_DEBUG);
3463 void sws_freeVec(SwsVector *a)
3466 av_freep(&a->coeff);
3471 void sws_freeFilter(SwsFilter *filter)
3473 if (!filter) return;
3475 if (filter->lumH) sws_freeVec(filter->lumH);
3476 if (filter->lumV) sws_freeVec(filter->lumV);
3477 if (filter->chrH) sws_freeVec(filter->chrH);
3478 if (filter->chrV) sws_freeVec(filter->chrV);
3483 void sws_freeContext(SwsContext *c)
3489 for (i=0; i<c->vLumBufSize; i++)
3490 av_freep(&c->lumPixBuf[i]);
3491 av_freep(&c->lumPixBuf);
3495 for (i=0; i<c->vChrBufSize; i++)
3496 av_freep(&c->chrPixBuf[i]);
3497 av_freep(&c->chrPixBuf);
3500 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
3501 for (i=0; i<c->vLumBufSize; i++)
3502 av_freep(&c->alpPixBuf[i]);
3503 av_freep(&c->alpPixBuf);
3506 av_freep(&c->vLumFilter);
3507 av_freep(&c->vChrFilter);
3508 av_freep(&c->hLumFilter);
3509 av_freep(&c->hChrFilter);
3510 #ifdef COMPILE_ALTIVEC
3511 av_freep(&c->vYCoeffsBank);
3512 av_freep(&c->vCCoeffsBank);
3515 av_freep(&c->vLumFilterPos);
3516 av_freep(&c->vChrFilterPos);
3517 av_freep(&c->hLumFilterPos);
3518 av_freep(&c->hChrFilterPos);
3520 #if ARCH_X86 && CONFIG_GPL
3521 #ifdef MAP_ANONYMOUS
3522 if (c->lumMmx2FilterCode) munmap(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize);
3523 if (c->chrMmx2FilterCode) munmap(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize);
3524 #elif HAVE_VIRTUALALLOC
3525 if (c->lumMmx2FilterCode) VirtualFree(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, MEM_RELEASE);
3526 if (c->chrMmx2FilterCode) VirtualFree(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, MEM_RELEASE);
3528 av_free(c->lumMmx2FilterCode);
3529 av_free(c->chrMmx2FilterCode);
3531 c->lumMmx2FilterCode=NULL;
3532 c->chrMmx2FilterCode=NULL;
3533 #endif /* ARCH_X86 && CONFIG_GPL */
3535 av_freep(&c->lumMmx2Filter);
3536 av_freep(&c->chrMmx2Filter);
3537 av_freep(&c->lumMmx2FilterPos);
3538 av_freep(&c->chrMmx2FilterPos);
3539 av_freep(&c->yuvTable);
3544 struct SwsContext *sws_getCachedContext(struct SwsContext *context,
3545 int srcW, int srcH, enum PixelFormat srcFormat,
3546 int dstW, int dstH, enum PixelFormat dstFormat, int flags,
3547 SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
3549 static const double default_param[2] = {SWS_PARAM_DEFAULT, SWS_PARAM_DEFAULT};
3552 param = default_param;
3555 if (context->srcW != srcW || context->srcH != srcH ||
3556 context->srcFormat != srcFormat ||
3557 context->dstW != dstW || context->dstH != dstH ||
3558 context->dstFormat != dstFormat || context->flags != flags ||
3559 context->param[0] != param[0] || context->param[1] != param[1])
3561 sws_freeContext(context);
3566 return sws_getContext(srcW, srcH, srcFormat,
3567 dstW, dstH, dstFormat, flags,
3568 srcFilter, dstFilter, param);