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
67 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
68 #define MAP_ANONYMOUS MAP_ANON
72 #define WIN32_LEAN_AND_MEAN
76 #include "swscale_internal.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
93 //#define WORDS_BIGENDIAN
96 #define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit
98 #define RET 0xC3 //near return opcode for x86
103 #define PI 3.14159265358979323846
106 #define isSupportedIn(x) ( \
107 (x)==PIX_FMT_YUV420P \
108 || (x)==PIX_FMT_YUVA420P \
109 || (x)==PIX_FMT_YUYV422 \
110 || (x)==PIX_FMT_UYVY422 \
111 || (x)==PIX_FMT_RGB48BE \
112 || (x)==PIX_FMT_RGB48LE \
113 || (x)==PIX_FMT_RGB32 \
114 || (x)==PIX_FMT_RGB32_1 \
115 || (x)==PIX_FMT_BGR24 \
116 || (x)==PIX_FMT_BGR565 \
117 || (x)==PIX_FMT_BGR555 \
118 || (x)==PIX_FMT_BGR32 \
119 || (x)==PIX_FMT_BGR32_1 \
120 || (x)==PIX_FMT_RGB24 \
121 || (x)==PIX_FMT_RGB565 \
122 || (x)==PIX_FMT_RGB555 \
123 || (x)==PIX_FMT_GRAY8 \
124 || (x)==PIX_FMT_YUV410P \
125 || (x)==PIX_FMT_YUV440P \
126 || (x)==PIX_FMT_GRAY16BE \
127 || (x)==PIX_FMT_GRAY16LE \
128 || (x)==PIX_FMT_YUV444P \
129 || (x)==PIX_FMT_YUV422P \
130 || (x)==PIX_FMT_YUV411P \
131 || (x)==PIX_FMT_PAL8 \
132 || (x)==PIX_FMT_BGR8 \
133 || (x)==PIX_FMT_RGB8 \
134 || (x)==PIX_FMT_BGR4_BYTE \
135 || (x)==PIX_FMT_RGB4_BYTE \
136 || (x)==PIX_FMT_YUV440P \
137 || (x)==PIX_FMT_MONOWHITE \
138 || (x)==PIX_FMT_MONOBLACK \
139 || (x)==PIX_FMT_YUV420PLE \
140 || (x)==PIX_FMT_YUV422PLE \
141 || (x)==PIX_FMT_YUV444PLE \
142 || (x)==PIX_FMT_YUV420PBE \
143 || (x)==PIX_FMT_YUV422PBE \
144 || (x)==PIX_FMT_YUV444PBE \
146 #define isSupportedOut(x) ( \
147 (x)==PIX_FMT_YUV420P \
148 || (x)==PIX_FMT_YUVA420P \
149 || (x)==PIX_FMT_YUYV422 \
150 || (x)==PIX_FMT_UYVY422 \
151 || (x)==PIX_FMT_YUV444P \
152 || (x)==PIX_FMT_YUV422P \
153 || (x)==PIX_FMT_YUV411P \
156 || (x)==PIX_FMT_NV12 \
157 || (x)==PIX_FMT_NV21 \
158 || (x)==PIX_FMT_GRAY16BE \
159 || (x)==PIX_FMT_GRAY16LE \
160 || (x)==PIX_FMT_GRAY8 \
161 || (x)==PIX_FMT_YUV410P \
162 || (x)==PIX_FMT_YUV440P \
163 || (x)==PIX_FMT_YUV420PLE \
164 || (x)==PIX_FMT_YUV422PLE \
165 || (x)==PIX_FMT_YUV444PLE \
166 || (x)==PIX_FMT_YUV420PBE \
167 || (x)==PIX_FMT_YUV422PBE \
168 || (x)==PIX_FMT_YUV444PBE \
170 #define isPacked(x) ( \
172 || (x)==PIX_FMT_YUYV422 \
173 || (x)==PIX_FMT_UYVY422 \
177 #define usePal(x) ( \
179 || (x)==PIX_FMT_BGR4_BYTE \
180 || (x)==PIX_FMT_RGB4_BYTE \
181 || (x)==PIX_FMT_BGR8 \
182 || (x)==PIX_FMT_RGB8 \
185 #define RGB2YUV_SHIFT 15
186 #define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
187 #define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
188 #define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
189 #define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
190 #define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
191 #define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
192 #define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
193 #define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
194 #define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
196 extern const int32_t ff_yuv2rgb_coeffs
[8][4];
198 static const double rgb2yuv_table
[8][9]={
199 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
200 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
201 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
202 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
203 {0.59 , 0.11 , 0.30 , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
204 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
205 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //SMPTE 170M
206 {0.701 , 0.087 , 0.212 , -0.384, 0.5 -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
211 Special versions: fast Y 1:1 scaling (no interpolation in y direction)
214 more intelligent misalignment avoidance for the horizontal scaler
215 write special vertical cubic upscale version
216 optimize C code (YV12 / minmax)
217 add support for packed pixel YUV input & output
218 add support for Y8 output
219 optimize BGR24 & BGR32
220 add BGR4 output support
221 write special BGR->BGR scaler
224 #if ARCH_X86 && CONFIG_GPL
225 DECLARE_ASM_CONST(8, uint64_t, bF8
)= 0xF8F8F8F8F8F8F8F8LL
;
226 DECLARE_ASM_CONST(8, uint64_t, bFC
)= 0xFCFCFCFCFCFCFCFCLL
;
227 DECLARE_ASM_CONST(8, uint64_t, w10
)= 0x0010001000100010LL
;
228 DECLARE_ASM_CONST(8, uint64_t, w02
)= 0x0002000200020002LL
;
229 DECLARE_ASM_CONST(8, uint64_t, bm00001111
)=0x00000000FFFFFFFFLL
;
230 DECLARE_ASM_CONST(8, uint64_t, bm00000111
)=0x0000000000FFFFFFLL
;
231 DECLARE_ASM_CONST(8, uint64_t, bm11111000
)=0xFFFFFFFFFF000000LL
;
232 DECLARE_ASM_CONST(8, uint64_t, bm01010101
)=0x00FF00FF00FF00FFLL
;
234 const DECLARE_ALIGNED(8, uint64_t, ff_dither4
[2]) = {
235 0x0103010301030103LL
,
236 0x0200020002000200LL
,};
238 const DECLARE_ALIGNED(8, uint64_t, ff_dither8
[2]) = {
239 0x0602060206020602LL
,
240 0x0004000400040004LL
,};
242 DECLARE_ASM_CONST(8, uint64_t, b16Mask
)= 0x001F001F001F001FLL
;
243 DECLARE_ASM_CONST(8, uint64_t, g16Mask
)= 0x07E007E007E007E0LL
;
244 DECLARE_ASM_CONST(8, uint64_t, r16Mask
)= 0xF800F800F800F800LL
;
245 DECLARE_ASM_CONST(8, uint64_t, b15Mask
)= 0x001F001F001F001FLL
;
246 DECLARE_ASM_CONST(8, uint64_t, g15Mask
)= 0x03E003E003E003E0LL
;
247 DECLARE_ASM_CONST(8, uint64_t, r15Mask
)= 0x7C007C007C007C00LL
;
249 DECLARE_ALIGNED(8, const uint64_t, ff_M24A
) = 0x00FF0000FF0000FFLL
;
250 DECLARE_ALIGNED(8, const uint64_t, ff_M24B
) = 0xFF0000FF0000FF00LL
;
251 DECLARE_ALIGNED(8, const uint64_t, ff_M24C
) = 0x0000FF0000FF0000LL
;
254 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff
) = 0x000000210041000DULL
;
255 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff
) = 0x0000FFEEFFDC0038ULL
;
256 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff
) = 0x00000038FFD2FFF8ULL
;
258 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff
) = 0x000020E540830C8BULL
;
259 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff
) = 0x0000ED0FDAC23831ULL
;
260 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff
) = 0x00003831D0E6F6EAULL
;
261 #endif /* FAST_BGR2YV12 */
262 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset
) = 0x1010101010101010ULL
;
263 DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset
) = 0x8080808080808080ULL
;
264 DECLARE_ALIGNED(8, const uint64_t, ff_w1111
) = 0x0001000100010001ULL
;
266 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY1Coeff
) = 0x0C88000040870C88ULL
;
267 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY2Coeff
) = 0x20DE4087000020DEULL
;
268 DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY1Coeff
) = 0x20DE0000408720DEULL
;
269 DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY2Coeff
) = 0x0C88408700000C88ULL
;
270 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toYOffset
) = 0x0008400000084000ULL
;
272 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUV
[2][4]) = {
273 {0x38380000DAC83838ULL
, 0xECFFDAC80000ECFFULL
, 0xF6E40000D0E3F6E4ULL
, 0x3838D0E300003838ULL
},
274 {0xECFF0000DAC8ECFFULL
, 0x3838DAC800003838ULL
, 0x38380000D0E33838ULL
, 0xF6E4D0E30000F6E4ULL
},
277 DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUVOffset
)= 0x0040400000404000ULL
;
279 #endif /* ARCH_X86 && CONFIG_GPL */
281 // clipping helper table for C implementations:
282 static unsigned char clip_table
[768];
284 static SwsVector
*sws_getConvVec(SwsVector
*a
, SwsVector
*b
);
286 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_4
[2][8])={
287 { 1, 3, 1, 3, 1, 3, 1, 3, },
288 { 2, 0, 2, 0, 2, 0, 2, 0, },
291 DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_8
[2][8])={
292 { 6, 2, 6, 2, 6, 2, 6, 2, },
293 { 0, 4, 0, 4, 0, 4, 0, 4, },
296 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_32
[8][8])={
297 { 17, 9, 23, 15, 16, 8, 22, 14, },
298 { 5, 29, 3, 27, 4, 28, 2, 26, },
299 { 21, 13, 19, 11, 20, 12, 18, 10, },
300 { 0, 24, 6, 30, 1, 25, 7, 31, },
301 { 16, 8, 22, 14, 17, 9, 23, 15, },
302 { 4, 28, 2, 26, 5, 29, 3, 27, },
303 { 20, 12, 18, 10, 21, 13, 19, 11, },
304 { 1, 25, 7, 31, 0, 24, 6, 30, },
308 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_64
[8][8])={
309 { 0, 48, 12, 60, 3, 51, 15, 63, },
310 { 32, 16, 44, 28, 35, 19, 47, 31, },
311 { 8, 56, 4, 52, 11, 59, 7, 55, },
312 { 40, 24, 36, 20, 43, 27, 39, 23, },
313 { 2, 50, 14, 62, 1, 49, 13, 61, },
314 { 34, 18, 46, 30, 33, 17, 45, 29, },
315 { 10, 58, 6, 54, 9, 57, 5, 53, },
316 { 42, 26, 38, 22, 41, 25, 37, 21, },
320 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_73
[8][8])={
321 { 0, 55, 14, 68, 3, 58, 17, 72, },
322 { 37, 18, 50, 32, 40, 22, 54, 35, },
323 { 9, 64, 5, 59, 13, 67, 8, 63, },
324 { 46, 27, 41, 23, 49, 31, 44, 26, },
325 { 2, 57, 16, 71, 1, 56, 15, 70, },
326 { 39, 21, 52, 34, 38, 19, 51, 33, },
327 { 11, 66, 7, 62, 10, 65, 6, 60, },
328 { 48, 30, 43, 25, 47, 29, 42, 24, },
332 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_128
[8][8])={
333 { 68, 36, 92, 60, 66, 34, 90, 58, },
334 { 20, 116, 12, 108, 18, 114, 10, 106, },
335 { 84, 52, 76, 44, 82, 50, 74, 42, },
336 { 0, 96, 24, 120, 6, 102, 30, 126, },
337 { 64, 32, 88, 56, 70, 38, 94, 62, },
338 { 16, 112, 8, 104, 22, 118, 14, 110, },
339 { 80, 48, 72, 40, 86, 54, 78, 46, },
340 { 4, 100, 28, 124, 2, 98, 26, 122, },
345 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220
[8][8])={
346 {117, 62, 158, 103, 113, 58, 155, 100, },
347 { 34, 199, 21, 186, 31, 196, 17, 182, },
348 {144, 89, 131, 76, 141, 86, 127, 72, },
349 { 0, 165, 41, 206, 10, 175, 52, 217, },
350 {110, 55, 151, 96, 120, 65, 162, 107, },
351 { 28, 193, 14, 179, 38, 203, 24, 189, },
352 {138, 83, 124, 69, 148, 93, 134, 79, },
353 { 7, 172, 48, 213, 3, 168, 45, 210, },
356 // tries to correct a gamma of 1.5
357 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220
[8][8])={
358 { 0, 143, 18, 200, 2, 156, 25, 215, },
359 { 78, 28, 125, 64, 89, 36, 138, 74, },
360 { 10, 180, 3, 161, 16, 195, 8, 175, },
361 {109, 51, 93, 38, 121, 60, 105, 47, },
362 { 1, 152, 23, 210, 0, 147, 20, 205, },
363 { 85, 33, 134, 71, 81, 30, 130, 67, },
364 { 14, 190, 6, 171, 12, 185, 5, 166, },
365 {117, 57, 101, 44, 113, 54, 97, 41, },
368 // tries to correct a gamma of 2.0
369 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220
[8][8])={
370 { 0, 124, 8, 193, 0, 140, 12, 213, },
371 { 55, 14, 104, 42, 66, 19, 119, 52, },
372 { 3, 168, 1, 145, 6, 187, 3, 162, },
373 { 86, 31, 70, 21, 99, 39, 82, 28, },
374 { 0, 134, 11, 206, 0, 129, 9, 200, },
375 { 62, 17, 114, 48, 58, 16, 109, 45, },
376 { 5, 181, 2, 157, 4, 175, 1, 151, },
377 { 95, 36, 78, 26, 90, 34, 74, 24, },
380 // tries to correct a gamma of 2.5
381 DECLARE_ALIGNED(8, const uint8_t, dither_8x8_220
[8][8])={
382 { 0, 107, 3, 187, 0, 125, 6, 212, },
383 { 39, 7, 86, 28, 49, 11, 102, 36, },
384 { 1, 158, 0, 131, 3, 180, 1, 151, },
385 { 68, 19, 52, 12, 81, 25, 64, 17, },
386 { 0, 119, 5, 203, 0, 113, 4, 195, },
387 { 45, 9, 96, 33, 42, 8, 91, 30, },
388 { 2, 172, 1, 144, 2, 165, 0, 137, },
389 { 77, 23, 60, 15, 72, 21, 56, 14, },
393 const char *sws_format_name(enum PixelFormat format
)
396 case PIX_FMT_YUV420P
:
398 case PIX_FMT_YUVA420P
:
400 case PIX_FMT_YUYV422
:
406 case PIX_FMT_YUV422P
:
408 case PIX_FMT_YUV444P
:
412 case PIX_FMT_YUV410P
:
414 case PIX_FMT_YUV411P
:
420 case PIX_FMT_GRAY16BE
:
422 case PIX_FMT_GRAY16LE
:
426 case PIX_FMT_MONOWHITE
:
428 case PIX_FMT_MONOBLACK
:
432 case PIX_FMT_YUVJ420P
:
434 case PIX_FMT_YUVJ422P
:
436 case PIX_FMT_YUVJ444P
:
438 case PIX_FMT_XVMC_MPEG2_MC
:
439 return "xvmc_mpeg2_mc";
440 case PIX_FMT_XVMC_MPEG2_IDCT
:
441 return "xvmc_mpeg2_idct";
442 case PIX_FMT_UYVY422
:
444 case PIX_FMT_UYYVYY411
:
446 case PIX_FMT_RGB32_1
:
448 case PIX_FMT_BGR32_1
:
460 case PIX_FMT_BGR4_BYTE
:
466 case PIX_FMT_RGB4_BYTE
:
468 case PIX_FMT_RGB48BE
:
470 case PIX_FMT_RGB48LE
:
476 case PIX_FMT_YUV440P
:
478 case PIX_FMT_VDPAU_H264
:
480 case PIX_FMT_VDPAU_MPEG1
:
481 return "vdpau_mpeg1";
482 case PIX_FMT_VDPAU_MPEG2
:
483 return "vdpau_mpeg2";
484 case PIX_FMT_VDPAU_WMV3
:
486 case PIX_FMT_VDPAU_VC1
:
488 case PIX_FMT_YUV420PLE
:
490 case PIX_FMT_YUV422PLE
:
492 case PIX_FMT_YUV444PLE
:
494 case PIX_FMT_YUV420PBE
:
496 case PIX_FMT_YUV422PBE
:
498 case PIX_FMT_YUV444PBE
:
501 return "Unknown format";
505 static inline void yuv2yuvXinC(const int16_t *lumFilter
, const int16_t **lumSrc
, int lumFilterSize
,
506 const int16_t *chrFilter
, const int16_t **chrSrc
, int chrFilterSize
,
507 const int16_t **alpSrc
, uint8_t *dest
, uint8_t *uDest
, uint8_t *vDest
, uint8_t *aDest
, int dstW
, int chrDstW
)
509 //FIXME Optimize (just quickly written not optimized..)
511 for (i
=0; i
<dstW
; i
++)
515 for (j
=0; j
<lumFilterSize
; j
++)
516 val
+= lumSrc
[j
][i
] * lumFilter
[j
];
518 dest
[i
]= av_clip_uint8(val
>>19);
522 for (i
=0; i
<chrDstW
; i
++)
527 for (j
=0; j
<chrFilterSize
; j
++)
529 u
+= chrSrc
[j
][i
] * chrFilter
[j
];
530 v
+= chrSrc
[j
][i
+ VOFW
] * chrFilter
[j
];
533 uDest
[i
]= av_clip_uint8(u
>>19);
534 vDest
[i
]= av_clip_uint8(v
>>19);
537 if (CONFIG_SWSCALE_ALPHA
&& aDest
)
538 for (i
=0; i
<dstW
; i
++){
541 for (j
=0; j
<lumFilterSize
; j
++)
542 val
+= alpSrc
[j
][i
] * lumFilter
[j
];
544 aDest
[i
]= av_clip_uint8(val
>>19);
549 static inline void yuv2nv12XinC(const int16_t *lumFilter
, const int16_t **lumSrc
, int lumFilterSize
,
550 const int16_t *chrFilter
, const int16_t **chrSrc
, int chrFilterSize
,
551 uint8_t *dest
, uint8_t *uDest
, int dstW
, int chrDstW
, int dstFormat
)
553 //FIXME Optimize (just quickly written not optimized..)
555 for (i
=0; i
<dstW
; i
++)
559 for (j
=0; j
<lumFilterSize
; j
++)
560 val
+= lumSrc
[j
][i
] * lumFilter
[j
];
562 dest
[i
]= av_clip_uint8(val
>>19);
568 if (dstFormat
== PIX_FMT_NV12
)
569 for (i
=0; i
<chrDstW
; i
++)
574 for (j
=0; j
<chrFilterSize
; j
++)
576 u
+= chrSrc
[j
][i
] * chrFilter
[j
];
577 v
+= chrSrc
[j
][i
+ VOFW
] * chrFilter
[j
];
580 uDest
[2*i
]= av_clip_uint8(u
>>19);
581 uDest
[2*i
+1]= av_clip_uint8(v
>>19);
584 for (i
=0; i
<chrDstW
; i
++)
589 for (j
=0; j
<chrFilterSize
; j
++)
591 u
+= chrSrc
[j
][i
] * chrFilter
[j
];
592 v
+= chrSrc
[j
][i
+ VOFW
] * chrFilter
[j
];
595 uDest
[2*i
]= av_clip_uint8(v
>>19);
596 uDest
[2*i
+1]= av_clip_uint8(u
>>19);
600 #define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \
601 for (i=0; i<(dstW>>1); i++){\
607 int av_unused A1, A2;\
608 type av_unused *r, *b, *g;\
611 for (j=0; j<lumFilterSize; j++)\
613 Y1 += lumSrc[j][i2] * lumFilter[j];\
614 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
616 for (j=0; j<chrFilterSize; j++)\
618 U += chrSrc[j][i] * chrFilter[j];\
619 V += chrSrc[j][i+VOFW] * chrFilter[j];\
628 for (j=0; j<lumFilterSize; j++){\
629 A1 += alpSrc[j][i2 ] * lumFilter[j];\
630 A2 += alpSrc[j][i2+1] * lumFilter[j];\
636 #define YSCALE_YUV_2_PACKEDX_C(type,alpha) \
637 YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\
638 if ((Y1|Y2|U|V)&256)\
640 if (Y1>255) Y1=255; \
641 else if (Y1<0)Y1=0; \
642 if (Y2>255) Y2=255; \
643 else if (Y2<0)Y2=0; \
649 if (alpha && ((A1|A2)&256)){\
650 A1=av_clip_uint8(A1);\
651 A2=av_clip_uint8(A2);\
654 #define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \
655 for (i=0; i<dstW; i++){\
663 for (j=0; j<lumFilterSize; j++){\
664 Y += lumSrc[j][i ] * lumFilter[j];\
666 for (j=0; j<chrFilterSize; j++){\
667 U += chrSrc[j][i ] * chrFilter[j];\
668 V += chrSrc[j][i+VOFW] * chrFilter[j];\
675 for (j=0; j<lumFilterSize; j++)\
676 A += alpSrc[j][i ] * lumFilter[j];\
679 A = av_clip_uint8(A);\
682 #define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \
683 YSCALE_YUV_2_PACKEDX_FULL_C(rnd>>3,alpha)\
684 Y-= c->yuv2rgb_y_offset;\
685 Y*= c->yuv2rgb_y_coeff;\
687 R= Y + V*c->yuv2rgb_v2r_coeff;\
688 G= Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;\
689 B= Y + U*c->yuv2rgb_u2b_coeff;\
690 if ((R|G|B)&(0xC0000000)){\
691 if (R>=(256<<22)) R=(256<<22)-1; \
693 if (G>=(256<<22)) G=(256<<22)-1; \
695 if (B>=(256<<22)) B=(256<<22)-1; \
700 #define YSCALE_YUV_2_GRAY16_C \
701 for (i=0; i<(dstW>>1); i++){\
710 for (j=0; j<lumFilterSize; j++)\
712 Y1 += lumSrc[j][i2] * lumFilter[j];\
713 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
717 if ((Y1|Y2|U|V)&65536)\
719 if (Y1>65535) Y1=65535; \
720 else if (Y1<0)Y1=0; \
721 if (Y2>65535) Y2=65535; \
722 else if (Y2<0)Y2=0; \
725 #define YSCALE_YUV_2_RGBX_C(type,alpha) \
726 YSCALE_YUV_2_PACKEDX_C(type,alpha) /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\
727 r = (type *)c->table_rV[V]; \
728 g = (type *)(c->table_gU[U] + c->table_gV[V]); \
729 b = (type *)c->table_bU[U]; \
731 #define YSCALE_YUV_2_PACKED2_C(type,alpha) \
732 for (i=0; i<(dstW>>1); i++){ \
734 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19; \
735 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19; \
736 int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19; \
737 int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19; \
738 type av_unused *r, *b, *g; \
739 int av_unused A1, A2; \
741 A1= (abuf0[i2 ]*yalpha1+abuf1[i2 ]*yalpha)>>19; \
742 A2= (abuf0[i2+1]*yalpha1+abuf1[i2+1]*yalpha)>>19; \
745 #define YSCALE_YUV_2_GRAY16_2_C \
746 for (i=0; i<(dstW>>1); i++){ \
748 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>11; \
749 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11; \
751 #define YSCALE_YUV_2_RGB2_C(type,alpha) \
752 YSCALE_YUV_2_PACKED2_C(type,alpha)\
753 r = (type *)c->table_rV[V];\
754 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
755 b = (type *)c->table_bU[U];\
757 #define YSCALE_YUV_2_PACKED1_C(type,alpha) \
758 for (i=0; i<(dstW>>1); i++){\
760 int Y1= buf0[i2 ]>>7;\
761 int Y2= buf0[i2+1]>>7;\
762 int U= (uvbuf1[i ])>>7;\
763 int V= (uvbuf1[i+VOFW])>>7;\
764 type av_unused *r, *b, *g;\
765 int av_unused A1, A2;\
771 #define YSCALE_YUV_2_GRAY16_1_C \
772 for (i=0; i<(dstW>>1); i++){\
774 int Y1= buf0[i2 ]<<1;\
775 int Y2= buf0[i2+1]<<1;\
777 #define YSCALE_YUV_2_RGB1_C(type,alpha) \
778 YSCALE_YUV_2_PACKED1_C(type,alpha)\
779 r = (type *)c->table_rV[V];\
780 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
781 b = (type *)c->table_bU[U];\
783 #define YSCALE_YUV_2_PACKED1B_C(type,alpha) \
784 for (i=0; i<(dstW>>1); i++){\
786 int Y1= buf0[i2 ]>>7;\
787 int Y2= buf0[i2+1]>>7;\
788 int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
789 int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
790 type av_unused *r, *b, *g;\
791 int av_unused A1, A2;\
797 #define YSCALE_YUV_2_RGB1B_C(type,alpha) \
798 YSCALE_YUV_2_PACKED1B_C(type,alpha)\
799 r = (type *)c->table_rV[V];\
800 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
801 b = (type *)c->table_bU[U];\
803 #define YSCALE_YUV_2_MONO2_C \
804 const uint8_t * const d128=dither_8x8_220[y&7];\
805 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
806 for (i=0; i<dstW-7; i+=8){\
808 acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
809 acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
810 acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
811 acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
812 acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
813 acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
814 acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
815 acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
816 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
821 #define YSCALE_YUV_2_MONOX_C \
822 const uint8_t * const d128=dither_8x8_220[y&7];\
823 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
825 for (i=0; i<dstW-1; i+=2){\
830 for (j=0; j<lumFilterSize; j++)\
832 Y1 += lumSrc[j][i] * lumFilter[j];\
833 Y2 += lumSrc[j][i+1] * lumFilter[j];\
844 acc+= acc + g[Y1+d128[(i+0)&7]];\
845 acc+= acc + g[Y2+d128[(i+1)&7]];\
847 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
853 #define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\
854 switch(c->dstFormat)\
856 case PIX_FMT_RGB48BE:\
857 case PIX_FMT_RGB48LE:\
859 ((uint8_t*)dest)[ 0]= r[Y1];\
860 ((uint8_t*)dest)[ 1]= r[Y1];\
861 ((uint8_t*)dest)[ 2]= g[Y1];\
862 ((uint8_t*)dest)[ 3]= g[Y1];\
863 ((uint8_t*)dest)[ 4]= b[Y1];\
864 ((uint8_t*)dest)[ 5]= b[Y1];\
865 ((uint8_t*)dest)[ 6]= r[Y2];\
866 ((uint8_t*)dest)[ 7]= r[Y2];\
867 ((uint8_t*)dest)[ 8]= g[Y2];\
868 ((uint8_t*)dest)[ 9]= g[Y2];\
869 ((uint8_t*)dest)[10]= b[Y2];\
870 ((uint8_t*)dest)[11]= b[Y2];\
877 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
878 func(uint32_t,needAlpha)\
879 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? (A1<<24) : 0);\
880 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? (A2<<24) : 0);\
883 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){\
885 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (A1<<24);\
886 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (A2<<24);\
890 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
891 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
899 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
900 func(uint32_t,needAlpha)\
901 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? A1 : 0);\
902 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? A2 : 0);\
905 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){\
907 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + A1;\
908 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + A2;\
912 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
913 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
920 ((uint8_t*)dest)[0]= r[Y1];\
921 ((uint8_t*)dest)[1]= g[Y1];\
922 ((uint8_t*)dest)[2]= b[Y1];\
923 ((uint8_t*)dest)[3]= r[Y2];\
924 ((uint8_t*)dest)[4]= g[Y2];\
925 ((uint8_t*)dest)[5]= b[Y2];\
931 ((uint8_t*)dest)[0]= b[Y1];\
932 ((uint8_t*)dest)[1]= g[Y1];\
933 ((uint8_t*)dest)[2]= r[Y1];\
934 ((uint8_t*)dest)[3]= b[Y2];\
935 ((uint8_t*)dest)[4]= g[Y2];\
936 ((uint8_t*)dest)[5]= r[Y2];\
940 case PIX_FMT_RGB565:\
941 case PIX_FMT_BGR565:\
943 const int dr1= dither_2x2_8[y&1 ][0];\
944 const int dg1= dither_2x2_4[y&1 ][0];\
945 const int db1= dither_2x2_8[(y&1)^1][0];\
946 const int dr2= dither_2x2_8[y&1 ][1];\
947 const int dg2= dither_2x2_4[y&1 ][1];\
948 const int db2= dither_2x2_8[(y&1)^1][1];\
950 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
951 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
955 case PIX_FMT_RGB555:\
956 case PIX_FMT_BGR555:\
958 const int dr1= dither_2x2_8[y&1 ][0];\
959 const int dg1= dither_2x2_8[y&1 ][1];\
960 const int db1= dither_2x2_8[(y&1)^1][0];\
961 const int dr2= dither_2x2_8[y&1 ][1];\
962 const int dg2= dither_2x2_8[y&1 ][0];\
963 const int db2= dither_2x2_8[(y&1)^1][1];\
965 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
966 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
973 const uint8_t * const d64= dither_8x8_73[y&7];\
974 const uint8_t * const d32= dither_8x8_32[y&7];\
976 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
977 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
984 const uint8_t * const d64= dither_8x8_73 [y&7];\
985 const uint8_t * const d128=dither_8x8_220[y&7];\
987 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
988 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
992 case PIX_FMT_RGB4_BYTE:\
993 case PIX_FMT_BGR4_BYTE:\
995 const uint8_t * const d64= dither_8x8_73 [y&7];\
996 const uint8_t * const d128=dither_8x8_220[y&7];\
998 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
999 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
1003 case PIX_FMT_MONOBLACK:\
1004 case PIX_FMT_MONOWHITE:\
1009 case PIX_FMT_YUYV422:\
1011 ((uint8_t*)dest)[2*i2+0]= Y1;\
1012 ((uint8_t*)dest)[2*i2+1]= U;\
1013 ((uint8_t*)dest)[2*i2+2]= Y2;\
1014 ((uint8_t*)dest)[2*i2+3]= V;\
1017 case PIX_FMT_UYVY422:\
1019 ((uint8_t*)dest)[2*i2+0]= U;\
1020 ((uint8_t*)dest)[2*i2+1]= Y1;\
1021 ((uint8_t*)dest)[2*i2+2]= V;\
1022 ((uint8_t*)dest)[2*i2+3]= Y2;\
1025 case PIX_FMT_GRAY16BE:\
1027 ((uint8_t*)dest)[2*i2+0]= Y1>>8;\
1028 ((uint8_t*)dest)[2*i2+1]= Y1;\
1029 ((uint8_t*)dest)[2*i2+2]= Y2>>8;\
1030 ((uint8_t*)dest)[2*i2+3]= Y2;\
1033 case PIX_FMT_GRAY16LE:\
1035 ((uint8_t*)dest)[2*i2+0]= Y1;\
1036 ((uint8_t*)dest)[2*i2+1]= Y1>>8;\
1037 ((uint8_t*)dest)[2*i2+2]= Y2;\
1038 ((uint8_t*)dest)[2*i2+3]= Y2>>8;\
1044 static inline void yuv2packedXinC(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
1045 const int16_t *chrFilter
, const int16_t **chrSrc
, int chrFilterSize
,
1046 const int16_t **alpSrc
, uint8_t *dest
, int dstW
, int y
)
1049 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
)
1052 static inline void yuv2rgbXinC_full(SwsContext
*c
, const int16_t *lumFilter
, const int16_t **lumSrc
, int lumFilterSize
,
1053 const int16_t *chrFilter
, const int16_t **chrSrc
, int chrFilterSize
,
1054 const int16_t **alpSrc
, uint8_t *dest
, int dstW
, int y
)
1057 int step
= fmt_depth(c
->dstFormat
)/8;
1060 switch(c
->dstFormat
){
1068 int needAlpha
= CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
;
1069 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha
)
1070 dest
[aidx
]= needAlpha
? A
: 255;
1077 if (CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
){
1078 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
1086 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
1103 int needAlpha
= CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
;
1104 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha
)
1105 dest
[aidx
]= needAlpha
? A
: 255;
1112 if (CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
){
1113 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
1121 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
1136 static void fillPlane(uint8_t* plane
, int stride
, int width
, int height
, int y
, uint8_t val
){
1138 uint8_t *ptr
= plane
+ stride
*y
;
1139 for (i
=0; i
<height
; i
++){
1140 memset(ptr
, val
, width
);
1145 static inline void rgb48ToY(uint8_t *dst
, const uint8_t *src
, int width
)
1148 for (i
= 0; i
< width
; i
++) {
1153 dst
[i
] = (RY
*r
+ GY
*g
+ BY
*b
+ (33<<(RGB2YUV_SHIFT
-1))) >> RGB2YUV_SHIFT
;
1157 static inline void rgb48ToUV(uint8_t *dstU
, uint8_t *dstV
,
1158 uint8_t *src1
, uint8_t *src2
, int width
)
1162 for (i
= 0; i
< width
; i
++) {
1163 int r
= src1
[6*i
+ 0];
1164 int g
= src1
[6*i
+ 2];
1165 int b
= src1
[6*i
+ 4];
1167 dstU
[i
] = (RU
*r
+ GU
*g
+ BU
*b
+ (257<<(RGB2YUV_SHIFT
-1))) >> RGB2YUV_SHIFT
;
1168 dstV
[i
] = (RV
*r
+ GV
*g
+ BV
*b
+ (257<<(RGB2YUV_SHIFT
-1))) >> RGB2YUV_SHIFT
;
1172 static inline void rgb48ToUV_half(uint8_t *dstU
, uint8_t *dstV
,
1173 uint8_t *src1
, uint8_t *src2
, int width
)
1177 for (i
= 0; i
< width
; i
++) {
1178 int r
= src1
[12*i
+ 0] + src1
[12*i
+ 6];
1179 int g
= src1
[12*i
+ 2] + src1
[12*i
+ 8];
1180 int b
= src1
[12*i
+ 4] + src1
[12*i
+ 10];
1182 dstU
[i
]= (RU
*r
+ GU
*g
+ BU
*b
+ (257<<RGB2YUV_SHIFT
)) >> (RGB2YUV_SHIFT
+1);
1183 dstV
[i
]= (RV
*r
+ GV
*g
+ BV
*b
+ (257<<RGB2YUV_SHIFT
)) >> (RGB2YUV_SHIFT
+1);
1187 #define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\
1188 static inline void name(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)\
1191 for (i=0; i<width; i++)\
1193 int b= (((const type*)src)[i]>>shb)&maskb;\
1194 int g= (((const type*)src)[i]>>shg)&maskg;\
1195 int r= (((const type*)src)[i]>>shr)&maskr;\
1197 dst[i]= (((RY)*r + (GY)*g + (BY)*b + (33<<((S)-1)))>>(S));\
1201 BGR2Y(uint32_t, bgr32ToY
,16, 0, 0, 0x00FF, 0xFF00, 0x00FF, RY
<< 8, GY
, BY
<< 8, RGB2YUV_SHIFT
+8)
1202 BGR2Y(uint32_t, rgb32ToY
, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY
<< 8, GY
, BY
<< 8, RGB2YUV_SHIFT
+8)
1203 BGR2Y(uint16_t, bgr16ToY
, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RY
<<11, GY
<<5, BY
, RGB2YUV_SHIFT
+8)
1204 BGR2Y(uint16_t, bgr15ToY
, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY
<<10, GY
<<5, BY
, RGB2YUV_SHIFT
+7)
1205 BGR2Y(uint16_t, rgb16ToY
, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY
, GY
<<5, BY
<<11, RGB2YUV_SHIFT
+8)
1206 BGR2Y(uint16_t, rgb15ToY
, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY
, GY
<<5, BY
<<10, RGB2YUV_SHIFT
+7)
1208 static inline void abgrToA(uint8_t *dst
, const uint8_t *src
, long width
, uint32_t *unused
){
1210 for (i
=0; i
<width
; i
++){
1215 #define BGR2UV(type, name, shr, shg, shb, maska, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S)\
1216 static inline void name(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1219 for (i=0; i<width; i++)\
1221 int b= (((const type*)src)[i]&maskb)>>shb;\
1222 int g= (((const type*)src)[i]&maskg)>>shg;\
1223 int r= (((const type*)src)[i]&maskr)>>shr;\
1225 dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<((S)-1)))>>(S);\
1226 dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\
1229 static inline void name ## _half(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1232 for (i=0; i<width; i++)\
1234 int pix0= ((const type*)src)[2*i+0];\
1235 int pix1= ((const type*)src)[2*i+1];\
1236 int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\
1237 int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\
1238 int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\
1239 g&= maskg|(2*maskg);\
1243 dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<(S)))>>((S)+1);\
1244 dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<(S)))>>((S)+1);\
1248 BGR2UV(uint32_t, bgr32ToUV
,16, 0, 0, 0xFF000000, 0xFF0000, 0xFF00, 0x00FF, RU
<< 8, GU
, BU
<< 8, RV
<< 8, GV
, BV
<< 8, RGB2YUV_SHIFT
+8)
1249 BGR2UV(uint32_t, rgb32ToUV
, 0, 0,16, 0xFF000000, 0x00FF, 0xFF00, 0xFF0000, RU
<< 8, GU
, BU
<< 8, RV
<< 8, GV
, BV
<< 8, RGB2YUV_SHIFT
+8)
1250 BGR2UV(uint16_t, bgr16ToUV
, 0, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RU
<<11, GU
<<5, BU
, RV
<<11, GV
<<5, BV
, RGB2YUV_SHIFT
+8)
1251 BGR2UV(uint16_t, bgr15ToUV
, 0, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RU
<<10, GU
<<5, BU
, RV
<<10, GV
<<5, BV
, RGB2YUV_SHIFT
+7)
1252 BGR2UV(uint16_t, rgb16ToUV
, 0, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RU
, GU
<<5, BU
<<11, RV
, GV
<<5, BV
<<11, RGB2YUV_SHIFT
+8)
1253 BGR2UV(uint16_t, rgb15ToUV
, 0, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RU
, GU
<<5, BU
<<10, RV
, GV
<<5, BV
<<10, RGB2YUV_SHIFT
+7)
1255 static inline void palToY(uint8_t *dst
, const uint8_t *src
, long width
, uint32_t *pal
)
1258 for (i
=0; i
<width
; i
++)
1262 dst
[i
]= pal
[d
] & 0xFF;
1266 static inline void palToUV(uint8_t *dstU
, uint8_t *dstV
,
1267 const uint8_t *src1
, const uint8_t *src2
,
1268 long width
, uint32_t *pal
)
1271 assert(src1
== src2
);
1272 for (i
=0; i
<width
; i
++)
1274 int p
= pal
[src1
[i
]];
1281 static inline void monowhite2Y(uint8_t *dst
, const uint8_t *src
, long width
, uint32_t *unused
)
1284 for (i
=0; i
<width
/8; i
++){
1287 dst
[8*i
+j
]= ((d
>>(7-j
))&1)*255;
1291 static inline void monoblack2Y(uint8_t *dst
, const uint8_t *src
, long width
, uint32_t *unused
)
1294 for (i
=0; i
<width
/8; i
++){
1297 dst
[8*i
+j
]= ((d
>>(7-j
))&1)*255;
1302 //Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
1304 #if !HAVE_MMX || CONFIG_RUNTIME_CPUDETECT || !CONFIG_GPL
1309 #if (HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1311 #define COMPILE_ALTIVEC
1317 #if ((HAVE_MMX && !HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1321 #if (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1322 #define COMPILE_MMX2
1325 #if ((HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
1326 #define COMPILE_3DNOW
1332 #undef HAVE_AMD3DNOW
1336 #define HAVE_AMD3DNOW 0
1337 #define HAVE_ALTIVEC 0
1340 #define RENAME(a) a ## _C
1341 #include "swscale_template.c"
1344 #ifdef COMPILE_ALTIVEC
1347 #define HAVE_ALTIVEC 1
1348 #define RENAME(a) a ## _altivec
1349 #include "swscale_template.c"
1359 #undef HAVE_AMD3DNOW
1362 #define HAVE_AMD3DNOW 0
1363 #define RENAME(a) a ## _MMX
1364 #include "swscale_template.c"
1372 #undef HAVE_AMD3DNOW
1375 #define HAVE_AMD3DNOW 0
1376 #define RENAME(a) a ## _MMX2
1377 #include "swscale_template.c"
1381 #ifdef COMPILE_3DNOW
1385 #undef HAVE_AMD3DNOW
1388 #define HAVE_AMD3DNOW 1
1389 #define RENAME(a) a ## _3DNow
1390 #include "swscale_template.c"
1395 // minor note: the HAVE_xyz are messed up after this line so don't use them
1397 static double getSplineCoeff(double a
, double b
, double c
, double d
, double dist
)
1399 // printf("%f %f %f %f %f\n", a,b,c,d,dist);
1400 if (dist
<=1.0) return ((d
*dist
+ c
)*dist
+ b
)*dist
+a
;
1401 else return getSplineCoeff( 0.0,
1408 static inline int initFilter(int16_t **outFilter
, int16_t **filterPos
, int *outFilterSize
, int xInc
,
1409 int srcW
, int dstW
, int filterAlign
, int one
, int flags
,
1410 SwsVector
*srcFilter
, SwsVector
*dstFilter
, double param
[2])
1416 int64_t *filter
=NULL
;
1417 int64_t *filter2
=NULL
;
1418 const int64_t fone
= 1LL<<54;
1421 if (flags
& SWS_CPU_CAPS_MMX
)
1422 __asm__
volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions)
1425 // NOTE: the +1 is for the MMX scaler which reads over the end
1426 *filterPos
= av_malloc((dstW
+1)*sizeof(int16_t));
1428 if (FFABS(xInc
- 0x10000) <10) // unscaled
1432 filter
= av_mallocz(dstW
*sizeof(*filter
)*filterSize
);
1434 for (i
=0; i
<dstW
; i
++)
1436 filter
[i
*filterSize
]= fone
;
1441 else if (flags
&SWS_POINT
) // lame looking point sampling mode
1446 filter
= av_malloc(dstW
*sizeof(*filter
)*filterSize
);
1448 xDstInSrc
= xInc
/2 - 0x8000;
1449 for (i
=0; i
<dstW
; i
++)
1451 int xx
= (xDstInSrc
- ((filterSize
-1)<<15) + (1<<15))>>16;
1453 (*filterPos
)[i
]= xx
;
1458 else if ((xInc
<= (1<<16) && (flags
&SWS_AREA
)) || (flags
&SWS_FAST_BILINEAR
)) // bilinear upscale
1462 if (flags
&SWS_BICUBIC
) filterSize
= 4;
1463 else if (flags
&SWS_X
) filterSize
= 4;
1464 else filterSize
= 2; // SWS_BILINEAR / SWS_AREA
1465 filter
= av_malloc(dstW
*sizeof(*filter
)*filterSize
);
1467 xDstInSrc
= xInc
/2 - 0x8000;
1468 for (i
=0; i
<dstW
; i
++)
1470 int xx
= (xDstInSrc
- ((filterSize
-1)<<15) + (1<<15))>>16;
1473 (*filterPos
)[i
]= xx
;
1474 //bilinear upscale / linear interpolate / area averaging
1475 for (j
=0; j
<filterSize
; j
++)
1477 int64_t coeff
= fone
- FFABS((xx
<<16) - xDstInSrc
)*(fone
>>16);
1478 if (coeff
<0) coeff
=0;
1479 filter
[i
*filterSize
+ j
]= coeff
;
1490 if (flags
&SWS_BICUBIC
) sizeFactor
= 4;
1491 else if (flags
&SWS_X
) sizeFactor
= 8;
1492 else if (flags
&SWS_AREA
) sizeFactor
= 1; //downscale only, for upscale it is bilinear
1493 else if (flags
&SWS_GAUSS
) sizeFactor
= 8; // infinite ;)
1494 else if (flags
&SWS_LANCZOS
) sizeFactor
= param
[0] != SWS_PARAM_DEFAULT
? ceil(2*param
[0]) : 6;
1495 else if (flags
&SWS_SINC
) sizeFactor
= 20; // infinite ;)
1496 else if (flags
&SWS_SPLINE
) sizeFactor
= 20; // infinite ;)
1497 else if (flags
&SWS_BILINEAR
) sizeFactor
= 2;
1499 sizeFactor
= 0; //GCC warning killer
1503 if (xInc
<= 1<<16) filterSize
= 1 + sizeFactor
; // upscale
1504 else filterSize
= 1 + (sizeFactor
*srcW
+ dstW
- 1)/ dstW
;
1506 if (filterSize
> srcW
-2) filterSize
=srcW
-2;
1508 filter
= av_malloc(dstW
*sizeof(*filter
)*filterSize
);
1510 xDstInSrc
= xInc
- 0x10000;
1511 for (i
=0; i
<dstW
; i
++)
1513 int xx
= (xDstInSrc
- ((filterSize
-2)<<16)) / (1<<17);
1515 (*filterPos
)[i
]= xx
;
1516 for (j
=0; j
<filterSize
; j
++)
1518 int64_t d
= ((int64_t)FFABS((xx
<<17) - xDstInSrc
))<<13;
1524 floatd
= d
* (1.0/(1<<30));
1526 if (flags
& SWS_BICUBIC
)
1528 int64_t B
= (param
[0] != SWS_PARAM_DEFAULT
? param
[0] : 0) * (1<<24);
1529 int64_t C
= (param
[1] != SWS_PARAM_DEFAULT
? param
[1] : 0.6) * (1<<24);
1530 int64_t dd
= ( d
*d
)>>30;
1531 int64_t ddd
= (dd
*d
)>>30;
1534 coeff
= (12*(1<<24)-9*B
-6*C
)*ddd
+ (-18*(1<<24)+12*B
+6*C
)*dd
+ (6*(1<<24)-2*B
)*(1<<30);
1535 else if (d
< 1LL<<31)
1536 coeff
= (-B
-6*C
)*ddd
+ (6*B
+30*C
)*dd
+ (-12*B
-48*C
)*d
+ (8*B
+24*C
)*(1<<30);
1539 coeff
*= fone
>>(30+24);
1541 /* else if (flags & SWS_X)
1543 double p= param ? param*0.01 : 0.3;
1544 coeff = d ? sin(d*PI)/(d*PI) : 1.0;
1545 coeff*= pow(2.0, - p*d*d);
1547 else if (flags
& SWS_X
)
1549 double A
= param
[0] != SWS_PARAM_DEFAULT
? param
[0] : 1.0;
1556 if (c
<0.0) c
= -pow(-c
, A
);
1558 coeff
= (c
*0.5 + 0.5)*fone
;
1560 else if (flags
& SWS_AREA
)
1562 int64_t d2
= d
- (1<<29);
1563 if (d2
*xInc
< -(1LL<<(29+16))) coeff
= 1.0 * (1LL<<(30+16));
1564 else if (d2
*xInc
< (1LL<<(29+16))) coeff
= -d2
*xInc
+ (1LL<<(29+16));
1566 coeff
*= fone
>>(30+16);
1568 else if (flags
& SWS_GAUSS
)
1570 double p
= param
[0] != SWS_PARAM_DEFAULT
? param
[0] : 3.0;
1571 coeff
= (pow(2.0, - p
*floatd
*floatd
))*fone
;
1573 else if (flags
& SWS_SINC
)
1575 coeff
= (d
? sin(floatd
*PI
)/(floatd
*PI
) : 1.0)*fone
;
1577 else if (flags
& SWS_LANCZOS
)
1579 double p
= param
[0] != SWS_PARAM_DEFAULT
? param
[0] : 3.0;
1580 coeff
= (d
? sin(floatd
*PI
)*sin(floatd
*PI
/p
)/(floatd
*floatd
*PI
*PI
/p
) : 1.0)*fone
;
1581 if (floatd
>p
) coeff
=0;
1583 else if (flags
& SWS_BILINEAR
)
1586 if (coeff
<0) coeff
=0;
1587 coeff
*= fone
>> 30;
1589 else if (flags
& SWS_SPLINE
)
1591 double p
=-2.196152422706632;
1592 coeff
= getSplineCoeff(1.0, 0.0, p
, -p
-1.0, floatd
) * fone
;
1595 coeff
= 0.0; //GCC warning killer
1599 filter
[i
*filterSize
+ j
]= coeff
;
1606 /* apply src & dst Filter to filter -> filter2
1609 assert(filterSize
>0);
1610 filter2Size
= filterSize
;
1611 if (srcFilter
) filter2Size
+= srcFilter
->length
- 1;
1612 if (dstFilter
) filter2Size
+= dstFilter
->length
- 1;
1613 assert(filter2Size
>0);
1614 filter2
= av_mallocz(filter2Size
*dstW
*sizeof(*filter2
));
1616 for (i
=0; i
<dstW
; i
++)
1621 for (k
=0; k
<srcFilter
->length
; k
++){
1622 for (j
=0; j
<filterSize
; j
++)
1623 filter2
[i
*filter2Size
+ k
+ j
] += srcFilter
->coeff
[k
]*filter
[i
*filterSize
+ j
];
1626 for (j
=0; j
<filterSize
; j
++)
1627 filter2
[i
*filter2Size
+ j
]= filter
[i
*filterSize
+ j
];
1631 (*filterPos
)[i
]+= (filterSize
-1)/2 - (filter2Size
-1)/2;
1635 /* try to reduce the filter-size (step1 find size and shift left) */
1636 // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
1638 for (i
=dstW
-1; i
>=0; i
--)
1640 int min
= filter2Size
;
1644 /* get rid off near zero elements on the left by shifting left */
1645 for (j
=0; j
<filter2Size
; j
++)
1648 cutOff
+= FFABS(filter2
[i
*filter2Size
]);
1650 if (cutOff
> SWS_MAX_REDUCE_CUTOFF
*fone
) break;
1652 /* preserve monotonicity because the core can't handle the filter otherwise */
1653 if (i
<dstW
-1 && (*filterPos
)[i
] >= (*filterPos
)[i
+1]) break;
1655 // move filter coefficients left
1656 for (k
=1; k
<filter2Size
; k
++)
1657 filter2
[i
*filter2Size
+ k
- 1]= filter2
[i
*filter2Size
+ k
];
1658 filter2
[i
*filter2Size
+ k
- 1]= 0;
1663 /* count near zeros on the right */
1664 for (j
=filter2Size
-1; j
>0; j
--)
1666 cutOff
+= FFABS(filter2
[i
*filter2Size
+ j
]);
1668 if (cutOff
> SWS_MAX_REDUCE_CUTOFF
*fone
) break;
1672 if (min
>minFilterSize
) minFilterSize
= min
;
1675 if (flags
& SWS_CPU_CAPS_ALTIVEC
) {
1676 // we can handle the special case 4,
1677 // so we don't want to go to the full 8
1678 if (minFilterSize
< 5)
1681 // We really don't want to waste our time
1682 // doing useless computation, so fall back on
1683 // the scalar C code for very small filters.
1684 // Vectorizing is worth it only if you have a
1685 // decent-sized vector.
1686 if (minFilterSize
< 3)
1690 if (flags
& SWS_CPU_CAPS_MMX
) {
1691 // special case for unscaled vertical filtering
1692 if (minFilterSize
== 1 && filterAlign
== 2)
1696 assert(minFilterSize
> 0);
1697 filterSize
= (minFilterSize
+(filterAlign
-1)) & (~(filterAlign
-1));
1698 assert(filterSize
> 0);
1699 filter
= av_malloc(filterSize
*dstW
*sizeof(*filter
));
1700 if (filterSize
>= MAX_FILTER_SIZE
*16/((flags
&SWS_ACCURATE_RND
) ? APCK_SIZE
: 16) || !filter
)
1702 *outFilterSize
= filterSize
;
1704 if (flags
&SWS_PRINT_INFO
)
1705 av_log(NULL
, AV_LOG_VERBOSE
, "SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size
, filterSize
);
1706 /* try to reduce the filter-size (step2 reduce it) */
1707 for (i
=0; i
<dstW
; i
++)
1711 for (j
=0; j
<filterSize
; j
++)
1713 if (j
>=filter2Size
) filter
[i
*filterSize
+ j
]= 0;
1714 else filter
[i
*filterSize
+ j
]= filter2
[i
*filter2Size
+ j
];
1715 if((flags
& SWS_BITEXACT
) && j
>=minFilterSize
)
1716 filter
[i
*filterSize
+ j
]= 0;
1721 //FIXME try to align filterPos if possible
1724 for (i
=0; i
<dstW
; i
++)
1727 if ((*filterPos
)[i
] < 0)
1729 // move filter coefficients left to compensate for filterPos
1730 for (j
=1; j
<filterSize
; j
++)
1732 int left
= FFMAX(j
+ (*filterPos
)[i
], 0);
1733 filter
[i
*filterSize
+ left
] += filter
[i
*filterSize
+ j
];
1734 filter
[i
*filterSize
+ j
]=0;
1739 if ((*filterPos
)[i
] + filterSize
> srcW
)
1741 int shift
= (*filterPos
)[i
] + filterSize
- srcW
;
1742 // move filter coefficients right to compensate for filterPos
1743 for (j
=filterSize
-2; j
>=0; j
--)
1745 int right
= FFMIN(j
+ shift
, filterSize
-1);
1746 filter
[i
*filterSize
+right
] += filter
[i
*filterSize
+j
];
1747 filter
[i
*filterSize
+j
]=0;
1749 (*filterPos
)[i
]= srcW
- filterSize
;
1753 // Note the +1 is for the MMX scaler which reads over the end
1754 /* align at 16 for AltiVec (needed by hScale_altivec_real) */
1755 *outFilter
= av_mallocz(*outFilterSize
*(dstW
+1)*sizeof(int16_t));
1757 /* normalize & store in outFilter */
1758 for (i
=0; i
<dstW
; i
++)
1764 for (j
=0; j
<filterSize
; j
++)
1766 sum
+= filter
[i
*filterSize
+ j
];
1768 sum
= (sum
+ one
/2)/ one
;
1769 for (j
=0; j
<*outFilterSize
; j
++)
1771 int64_t v
= filter
[i
*filterSize
+ j
] + error
;
1772 int intV
= ROUNDED_DIV(v
, sum
);
1773 (*outFilter
)[i
*(*outFilterSize
) + j
]= intV
;
1774 error
= v
- intV
*sum
;
1778 (*filterPos
)[dstW
]= (*filterPos
)[dstW
-1]; // the MMX scaler will read over the end
1779 for (i
=0; i
<*outFilterSize
; i
++)
1781 int j
= dstW
*(*outFilterSize
);
1782 (*outFilter
)[j
+ i
]= (*outFilter
)[j
+ i
- (*outFilterSize
)];
1793 static void initMMX2HScaler(int dstW
, int xInc
, uint8_t *funnyCode
, int16_t *filter
, int32_t *filterPos
, int numSplits
)
1796 x86_reg imm8OfPShufW1A
;
1797 x86_reg imm8OfPShufW2A
;
1798 x86_reg fragmentLengthA
;
1800 x86_reg imm8OfPShufW1B
;
1801 x86_reg imm8OfPShufW2B
;
1802 x86_reg fragmentLengthB
;
1807 // create an optimized horizontal scaling routine
1815 "movq (%%"REG_d
", %%"REG_a
"), %%mm3 \n\t"
1816 "movd (%%"REG_c
", %%"REG_S
"), %%mm0 \n\t"
1817 "movd 1(%%"REG_c
", %%"REG_S
"), %%mm1 \n\t"
1818 "punpcklbw %%mm7, %%mm1 \n\t"
1819 "punpcklbw %%mm7, %%mm0 \n\t"
1820 "pshufw $0xFF, %%mm1, %%mm1 \n\t"
1822 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1824 "psubw %%mm1, %%mm0 \n\t"
1825 "movl 8(%%"REG_b
", %%"REG_a
"), %%esi \n\t"
1826 "pmullw %%mm3, %%mm0 \n\t"
1827 "psllw $7, %%mm1 \n\t"
1828 "paddw %%mm1, %%mm0 \n\t"
1830 "movq %%mm0, (%%"REG_D
", %%"REG_a
") \n\t"
1832 "add $8, %%"REG_a
" \n\t"
1836 "lea " LOCAL_MANGLE(0b
) ", %0 \n\t"
1837 "lea " LOCAL_MANGLE(1b
) ", %1 \n\t"
1838 "lea " LOCAL_MANGLE(2b
) ", %2 \n\t"
1843 "lea " LOCAL_MANGLE(9b
) ", %3 \n\t"
1847 :"=r" (fragmentA
), "=r" (imm8OfPShufW1A
), "=r" (imm8OfPShufW2A
),
1848 "=r" (fragmentLengthA
)
1855 "movq (%%"REG_d
", %%"REG_a
"), %%mm3 \n\t"
1856 "movd (%%"REG_c
", %%"REG_S
"), %%mm0 \n\t"
1857 "punpcklbw %%mm7, %%mm0 \n\t"
1858 "pshufw $0xFF, %%mm0, %%mm1 \n\t"
1860 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1862 "psubw %%mm1, %%mm0 \n\t"
1863 "movl 8(%%"REG_b
", %%"REG_a
"), %%esi \n\t"
1864 "pmullw %%mm3, %%mm0 \n\t"
1865 "psllw $7, %%mm1 \n\t"
1866 "paddw %%mm1, %%mm0 \n\t"
1868 "movq %%mm0, (%%"REG_D
", %%"REG_a
") \n\t"
1870 "add $8, %%"REG_a
" \n\t"
1874 "lea " LOCAL_MANGLE(0b
) ", %0 \n\t"
1875 "lea " LOCAL_MANGLE(1b
) ", %1 \n\t"
1876 "lea " LOCAL_MANGLE(2b
) ", %2 \n\t"
1881 "lea " LOCAL_MANGLE(9b
) ", %3 \n\t"
1885 :"=r" (fragmentB
), "=r" (imm8OfPShufW1B
), "=r" (imm8OfPShufW2B
),
1886 "=r" (fragmentLengthB
)
1889 xpos
= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
1892 for (i
=0; i
<dstW
/numSplits
; i
++)
1899 int b
=((xpos
+xInc
)>>16) - xx
;
1900 int c
=((xpos
+xInc
*2)>>16) - xx
;
1901 int d
=((xpos
+xInc
*3)>>16) - xx
;
1903 filter
[i
] = (( xpos
& 0xFFFF) ^ 0xFFFF)>>9;
1904 filter
[i
+1] = (((xpos
+xInc
) & 0xFFFF) ^ 0xFFFF)>>9;
1905 filter
[i
+2] = (((xpos
+xInc
*2) & 0xFFFF) ^ 0xFFFF)>>9;
1906 filter
[i
+3] = (((xpos
+xInc
*3) & 0xFFFF) ^ 0xFFFF)>>9;
1911 int maxShift
= 3-(d
+1);
1914 memcpy(funnyCode
+ fragmentPos
, fragmentB
, fragmentLengthB
);
1916 funnyCode
[fragmentPos
+ imm8OfPShufW1B
]=
1917 (a
+1) | ((b
+1)<<2) | ((c
+1)<<4) | ((d
+1)<<6);
1918 funnyCode
[fragmentPos
+ imm8OfPShufW2B
]=
1919 a
| (b
<<2) | (c
<<4) | (d
<<6);
1921 if (i
+3>=dstW
) shift
=maxShift
; //avoid overread
1922 else if ((filterPos
[i
/2]&3) <= maxShift
) shift
=filterPos
[i
/2]&3; //Align
1924 if (shift
&& i
>=shift
)
1926 funnyCode
[fragmentPos
+ imm8OfPShufW1B
]+= 0x55*shift
;
1927 funnyCode
[fragmentPos
+ imm8OfPShufW2B
]+= 0x55*shift
;
1928 filterPos
[i
/2]-=shift
;
1931 fragmentPos
+= fragmentLengthB
;
1938 memcpy(funnyCode
+ fragmentPos
, fragmentA
, fragmentLengthA
);
1940 funnyCode
[fragmentPos
+ imm8OfPShufW1A
]=
1941 funnyCode
[fragmentPos
+ imm8OfPShufW2A
]=
1942 a
| (b
<<2) | (c
<<4) | (d
<<6);
1944 if (i
+4>=dstW
) shift
=maxShift
; //avoid overread
1945 else if ((filterPos
[i
/2]&3) <= maxShift
) shift
=filterPos
[i
/2]&3; //partial align
1947 if (shift
&& i
>=shift
)
1949 funnyCode
[fragmentPos
+ imm8OfPShufW1A
]+= 0x55*shift
;
1950 funnyCode
[fragmentPos
+ imm8OfPShufW2A
]+= 0x55*shift
;
1951 filterPos
[i
/2]-=shift
;
1954 fragmentPos
+= fragmentLengthA
;
1957 funnyCode
[fragmentPos
]= RET
;
1961 filterPos
[((i
/2)+1)&(~1)]= xpos
>>16; // needed to jump to the next part
1963 #endif /* COMPILE_MMX2 */
1965 static void globalInit(void){
1966 // generating tables:
1968 for (i
=0; i
<768; i
++){
1969 int c
= av_clip_uint8(i
-256);
1974 static SwsFunc
getSwsFunc(SwsContext
*c
)
1976 #if CONFIG_RUNTIME_CPUDETECT && CONFIG_GPL
1977 int flags
= c
->flags
;
1980 // ordered per speed fastest first
1981 if (flags
& SWS_CPU_CAPS_MMX2
) {
1982 sws_init_swScale_MMX2(c
);
1983 return swScale_MMX2
;
1984 } else if (flags
& SWS_CPU_CAPS_3DNOW
) {
1985 sws_init_swScale_3DNow(c
);
1986 return swScale_3DNow
;
1987 } else if (flags
& SWS_CPU_CAPS_MMX
) {
1988 sws_init_swScale_MMX(c
);
1991 sws_init_swScale_C(c
);
1997 if (flags
& SWS_CPU_CAPS_ALTIVEC
) {
1998 sws_init_swScale_altivec(c
);
1999 return swScale_altivec
;
2001 sws_init_swScale_C(c
);
2005 sws_init_swScale_C(c
);
2007 #endif /* ARCH_X86 */
2008 #else //CONFIG_RUNTIME_CPUDETECT
2010 sws_init_swScale_MMX2(c
);
2011 return swScale_MMX2
;
2013 sws_init_swScale_3DNow(c
);
2014 return swScale_3DNow
;
2016 sws_init_swScale_MMX(c
);
2019 sws_init_swScale_altivec(c
);
2020 return swScale_altivec
;
2022 sws_init_swScale_C(c
);
2025 #endif //!CONFIG_RUNTIME_CPUDETECT
2028 static int PlanarToNV12Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2029 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2030 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2032 if (dstStride
[0]==srcStride
[0] && srcStride
[0] > 0)
2033 memcpy(dst
, src
[0], srcSliceH
*dstStride
[0]);
2037 const uint8_t *srcPtr
= src
[0];
2038 uint8_t *dstPtr
= dst
;
2039 for (i
=0; i
<srcSliceH
; i
++)
2041 memcpy(dstPtr
, srcPtr
, c
->srcW
);
2042 srcPtr
+= srcStride
[0];
2043 dstPtr
+= dstStride
[0];
2046 dst
= dstParam
[1] + dstStride
[1]*srcSliceY
/2;
2047 if (c
->dstFormat
== PIX_FMT_NV12
)
2048 interleaveBytes(src
[1], src
[2], dst
, c
->srcW
/2, srcSliceH
/2, srcStride
[1], srcStride
[2], dstStride
[0]);
2050 interleaveBytes(src
[2], src
[1], dst
, c
->srcW
/2, srcSliceH
/2, srcStride
[2], srcStride
[1], dstStride
[0]);
2055 static int PlanarToYuy2Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2056 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2057 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2059 yv12toyuy2(src
[0], src
[1], src
[2], dst
, c
->srcW
, srcSliceH
, srcStride
[0], srcStride
[1], dstStride
[0]);
2064 static int PlanarToUyvyWrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2065 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2066 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2068 yv12touyvy(src
[0], src
[1], src
[2], dst
, c
->srcW
, srcSliceH
, srcStride
[0], srcStride
[1], dstStride
[0]);
2073 static int YUV422PToYuy2Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2074 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2075 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2077 yuv422ptoyuy2(src
[0],src
[1],src
[2],dst
,c
->srcW
,srcSliceH
,srcStride
[0],srcStride
[1],dstStride
[0]);
2082 static int YUV422PToUyvyWrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2083 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2084 uint8_t *dst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2086 yuv422ptouyvy(src
[0],src
[1],src
[2],dst
,c
->srcW
,srcSliceH
,srcStride
[0],srcStride
[1],dstStride
[0]);
2091 static int YUYV2YUV420Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2092 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2093 uint8_t *ydst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2094 uint8_t *udst
=dstParam
[1] + dstStride
[1]*srcSliceY
/2;
2095 uint8_t *vdst
=dstParam
[2] + dstStride
[2]*srcSliceY
/2;
2097 yuyvtoyuv420(ydst
, udst
, vdst
, src
[0], c
->srcW
, srcSliceH
, dstStride
[0], dstStride
[1], srcStride
[0]);
2100 fillPlane(dstParam
[3], dstStride
[3], c
->srcW
, srcSliceH
, srcSliceY
, 255);
2105 static int YUYV2YUV422Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2106 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2107 uint8_t *ydst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2108 uint8_t *udst
=dstParam
[1] + dstStride
[1]*srcSliceY
;
2109 uint8_t *vdst
=dstParam
[2] + dstStride
[2]*srcSliceY
;
2111 yuyvtoyuv422(ydst
, udst
, vdst
, src
[0], c
->srcW
, srcSliceH
, dstStride
[0], dstStride
[1], srcStride
[0]);
2116 static int UYVY2YUV420Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2117 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2118 uint8_t *ydst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2119 uint8_t *udst
=dstParam
[1] + dstStride
[1]*srcSliceY
/2;
2120 uint8_t *vdst
=dstParam
[2] + dstStride
[2]*srcSliceY
/2;
2122 uyvytoyuv420(ydst
, udst
, vdst
, src
[0], c
->srcW
, srcSliceH
, dstStride
[0], dstStride
[1], srcStride
[0]);
2125 fillPlane(dstParam
[3], dstStride
[3], c
->srcW
, srcSliceH
, srcSliceY
, 255);
2130 static int UYVY2YUV422Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2131 int srcSliceH
, uint8_t* dstParam
[], int dstStride
[]){
2132 uint8_t *ydst
=dstParam
[0] + dstStride
[0]*srcSliceY
;
2133 uint8_t *udst
=dstParam
[1] + dstStride
[1]*srcSliceY
;
2134 uint8_t *vdst
=dstParam
[2] + dstStride
[2]*srcSliceY
;
2136 uyvytoyuv422(ydst
, udst
, vdst
, src
[0], c
->srcW
, srcSliceH
, dstStride
[0], dstStride
[1], srcStride
[0]);
2141 static int pal2rgbWrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2142 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2143 const enum PixelFormat srcFormat
= c
->srcFormat
;
2144 const enum PixelFormat dstFormat
= c
->dstFormat
;
2145 void (*conv
)(const uint8_t *src
, uint8_t *dst
, long num_pixels
,
2146 const uint8_t *palette
)=NULL
;
2148 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*srcSliceY
;
2149 uint8_t *srcPtr
= src
[0];
2151 if (!usePal(srcFormat
))
2152 av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
2153 sws_format_name(srcFormat
), sws_format_name(dstFormat
));
2156 case PIX_FMT_RGB32
: conv
= palette8topacked32
; break;
2157 case PIX_FMT_BGR32
: conv
= palette8topacked32
; break;
2158 case PIX_FMT_BGR32_1
: conv
= palette8topacked32
; break;
2159 case PIX_FMT_RGB32_1
: conv
= palette8topacked32
; break;
2160 case PIX_FMT_RGB24
: conv
= palette8topacked24
; break;
2161 case PIX_FMT_BGR24
: conv
= palette8topacked24
; break;
2162 default: av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
2163 sws_format_name(srcFormat
), sws_format_name(dstFormat
)); break;
2167 for (i
=0; i
<srcSliceH
; i
++) {
2168 conv(srcPtr
, dstPtr
, c
->srcW
, (uint8_t *) c
->pal_rgb
);
2169 srcPtr
+= srcStride
[0];
2170 dstPtr
+= dstStride
[0];
2176 /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
2177 static int rgb2rgbWrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2178 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2179 const enum PixelFormat srcFormat
= c
->srcFormat
;
2180 const enum PixelFormat dstFormat
= c
->dstFormat
;
2181 const int srcBpp
= (fmt_depth(srcFormat
) + 7) >> 3;
2182 const int dstBpp
= (fmt_depth(dstFormat
) + 7) >> 3;
2183 const int srcId
= fmt_depth(srcFormat
) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
2184 const int dstId
= fmt_depth(dstFormat
) >> 2;
2185 void (*conv
)(const uint8_t *src
, uint8_t *dst
, long src_size
)=NULL
;
2188 if ( (isBGR(srcFormat
) && isBGR(dstFormat
))
2189 || (isRGB(srcFormat
) && isRGB(dstFormat
))){
2190 switch(srcId
| (dstId
<<4)){
2191 case 0x34: conv
= rgb16to15
; break;
2192 case 0x36: conv
= rgb24to15
; break;
2193 case 0x38: conv
= rgb32to15
; break;
2194 case 0x43: conv
= rgb15to16
; break;
2195 case 0x46: conv
= rgb24to16
; break;
2196 case 0x48: conv
= rgb32to16
; break;
2197 case 0x63: conv
= rgb15to24
; break;
2198 case 0x64: conv
= rgb16to24
; break;
2199 case 0x68: conv
= rgb32to24
; break;
2200 case 0x83: conv
= rgb15to32
; break;
2201 case 0x84: conv
= rgb16to32
; break;
2202 case 0x86: conv
= rgb24to32
; break;
2203 default: av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
2204 sws_format_name(srcFormat
), sws_format_name(dstFormat
)); break;
2206 }else if ( (isBGR(srcFormat
) && isRGB(dstFormat
))
2207 || (isRGB(srcFormat
) && isBGR(dstFormat
))){
2208 switch(srcId
| (dstId
<<4)){
2209 case 0x33: conv
= rgb15tobgr15
; break;
2210 case 0x34: conv
= rgb16tobgr15
; break;
2211 case 0x36: conv
= rgb24tobgr15
; break;
2212 case 0x38: conv
= rgb32tobgr15
; break;
2213 case 0x43: conv
= rgb15tobgr16
; break;
2214 case 0x44: conv
= rgb16tobgr16
; break;
2215 case 0x46: conv
= rgb24tobgr16
; break;
2216 case 0x48: conv
= rgb32tobgr16
; break;
2217 case 0x63: conv
= rgb15tobgr24
; break;
2218 case 0x64: conv
= rgb16tobgr24
; break;
2219 case 0x66: conv
= rgb24tobgr24
; break;
2220 case 0x68: conv
= rgb32tobgr24
; break;
2221 case 0x83: conv
= rgb15tobgr32
; break;
2222 case 0x84: conv
= rgb16tobgr32
; break;
2223 case 0x86: conv
= rgb24tobgr32
; break;
2224 case 0x88: conv
= rgb32tobgr32
; break;
2225 default: av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
2226 sws_format_name(srcFormat
), sws_format_name(dstFormat
)); break;
2229 av_log(c
, AV_LOG_ERROR
, "internal error %s -> %s converter\n",
2230 sws_format_name(srcFormat
), sws_format_name(dstFormat
));
2235 uint8_t *srcPtr
= src
[0];
2236 if(srcFormat
== PIX_FMT_RGB32_1
|| srcFormat
== PIX_FMT_BGR32_1
)
2237 srcPtr
+= ALT32_CORR
;
2239 if (dstStride
[0]*srcBpp
== srcStride
[0]*dstBpp
&& srcStride
[0] > 0)
2240 conv(srcPtr
, dst
[0] + dstStride
[0]*srcSliceY
, srcSliceH
*srcStride
[0]);
2244 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*srcSliceY
;
2246 for (i
=0; i
<srcSliceH
; i
++)
2248 conv(srcPtr
, dstPtr
, c
->srcW
*srcBpp
);
2249 srcPtr
+= srcStride
[0];
2250 dstPtr
+= dstStride
[0];
2257 static int bgr24toyv12Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2258 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2262 dst
[0]+ srcSliceY
*dstStride
[0],
2263 dst
[1]+(srcSliceY
>>1)*dstStride
[1],
2264 dst
[2]+(srcSliceY
>>1)*dstStride
[2],
2266 dstStride
[0], dstStride
[1], srcStride
[0]);
2268 fillPlane(dst
[3], dstStride
[3], c
->srcW
, srcSliceH
, srcSliceY
, 255);
2272 static int yvu9toyv12Wrapper(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2273 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
2277 if (srcStride
[0]==dstStride
[0] && srcStride
[0] > 0)
2278 memcpy(dst
[0]+ srcSliceY
*dstStride
[0], src
[0], srcStride
[0]*srcSliceH
);
2280 uint8_t *srcPtr
= src
[0];
2281 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*srcSliceY
;
2283 for (i
=0; i
<srcSliceH
; i
++)
2285 memcpy(dstPtr
, srcPtr
, c
->srcW
);
2286 srcPtr
+= srcStride
[0];
2287 dstPtr
+= dstStride
[0];
2291 if (c
->dstFormat
==PIX_FMT_YUV420P
|| c
->dstFormat
==PIX_FMT_YUVA420P
){
2292 planar2x(src
[1], dst
[1] + dstStride
[1]*(srcSliceY
>> 1), c
->chrSrcW
,
2293 srcSliceH
>> 2, srcStride
[1], dstStride
[1]);
2294 planar2x(src
[2], dst
[2] + dstStride
[2]*(srcSliceY
>> 1), c
->chrSrcW
,
2295 srcSliceH
>> 2, srcStride
[2], dstStride
[2]);
2297 planar2x(src
[1], dst
[2] + dstStride
[2]*(srcSliceY
>> 1), c
->chrSrcW
,
2298 srcSliceH
>> 2, srcStride
[1], dstStride
[2]);
2299 planar2x(src
[2], dst
[1] + dstStride
[1]*(srcSliceY
>> 1), c
->chrSrcW
,
2300 srcSliceH
>> 2, srcStride
[2], dstStride
[1]);
2303 fillPlane(dst
[3], dstStride
[3], c
->srcW
, srcSliceH
, srcSliceY
, 255);
2307 /* unscaled copy like stuff (assumes nearly identical formats) */
2308 static int packedCopy(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2309 int srcSliceH
, uint8_t* dst
[], int dstStride
[])
2311 if (dstStride
[0]==srcStride
[0] && srcStride
[0] > 0)
2312 memcpy(dst
[0] + dstStride
[0]*srcSliceY
, src
[0], srcSliceH
*dstStride
[0]);
2316 uint8_t *srcPtr
= src
[0];
2317 uint8_t *dstPtr
= dst
[0] + dstStride
[0]*srcSliceY
;
2320 /* universal length finder */
2321 while(length
+c
->srcW
<= FFABS(dstStride
[0])
2322 && length
+c
->srcW
<= FFABS(srcStride
[0])) length
+= c
->srcW
;
2325 for (i
=0; i
<srcSliceH
; i
++)
2327 memcpy(dstPtr
, srcPtr
, length
);
2328 srcPtr
+= srcStride
[0];
2329 dstPtr
+= dstStride
[0];
2335 static int planarCopy(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
2336 int srcSliceH
, uint8_t* dst
[], int dstStride
[])
2339 for (plane
=0; plane
<4; plane
++)
2341 int length
= (plane
==0 || plane
==3) ? c
->srcW
: -((-c
->srcW
)>>c
->chrDstHSubSample
);
2342 int y
= (plane
==0 || plane
==3) ? srcSliceY
: -((-srcSliceY
)>>c
->chrDstVSubSample
);
2343 int height
= (plane
==0 || plane
==3) ? srcSliceH
: -((-srcSliceH
)>>c
->chrDstVSubSample
);
2344 uint8_t *srcPtr
= src
[plane
];
2345 uint8_t *dstPtr
= dst
[plane
] + dstStride
[plane
]*y
;
2347 if (!dst
[plane
]) continue;
2348 // ignore palette for GRAY8
2349 if (plane
== 1 && !dst
[2]) continue;
2350 if (!src
[plane
] || (plane
== 1 && !src
[2])){
2351 if(is16BPS(c
->dstFormat
))
2353 fillPlane(dst
[plane
], dstStride
[plane
], length
, height
, y
, (plane
==3) ? 255 : 128);
2356 if(is16BPS(c
->srcFormat
) && !is16BPS(c
->dstFormat
)){
2357 if (!isBE(c
->srcFormat
)) srcPtr
++;
2358 for (i
=0; i
<height
; i
++){
2359 for (j
=0; j
<length
; j
++) dstPtr
[j
] = srcPtr
[j
<<1];
2360 srcPtr
+= srcStride
[plane
];
2361 dstPtr
+= dstStride
[plane
];
2363 }else if(!is16BPS(c
->srcFormat
) && is16BPS(c
->dstFormat
)){
2364 for (i
=0; i
<height
; i
++){
2365 for (j
=0; j
<length
; j
++){
2366 dstPtr
[ j
<<1 ] = srcPtr
[j
];
2367 dstPtr
[(j
<<1)+1] = srcPtr
[j
];
2369 srcPtr
+= srcStride
[plane
];
2370 dstPtr
+= dstStride
[plane
];
2372 }else if(is16BPS(c
->srcFormat
) && is16BPS(c
->dstFormat
)
2373 && isBE(c
->srcFormat
) != isBE(c
->dstFormat
)){
2375 for (i
=0; i
<height
; i
++){
2376 for (j
=0; j
<length
; j
++)
2377 ((uint16_t*)dstPtr
)[j
] = bswap_16(((uint16_t*)srcPtr
)[j
]);
2378 srcPtr
+= srcStride
[plane
];
2379 dstPtr
+= dstStride
[plane
];
2381 } else if (dstStride
[plane
]==srcStride
[plane
] && srcStride
[plane
] > 0)
2382 memcpy(dst
[plane
] + dstStride
[plane
]*y
, src
[plane
], height
*dstStride
[plane
]);
2385 if(is16BPS(c
->srcFormat
) && is16BPS(c
->dstFormat
))
2387 for (i
=0; i
<height
; i
++)
2389 memcpy(dstPtr
, srcPtr
, length
);
2390 srcPtr
+= srcStride
[plane
];
2391 dstPtr
+= dstStride
[plane
];
2400 static void getSubSampleFactors(int *h
, int *v
, int format
){
2402 case PIX_FMT_UYVY422
:
2403 case PIX_FMT_YUYV422
:
2407 case PIX_FMT_YUV420P
:
2408 case PIX_FMT_YUV420PLE
:
2409 case PIX_FMT_YUV420PBE
:
2410 case PIX_FMT_YUVA420P
:
2411 case PIX_FMT_GRAY16BE
:
2412 case PIX_FMT_GRAY16LE
:
2413 case PIX_FMT_GRAY8
: //FIXME remove after different subsamplings are fully implemented
2419 case PIX_FMT_YUV440P
:
2423 case PIX_FMT_YUV410P
:
2427 case PIX_FMT_YUV444P
:
2428 case PIX_FMT_YUV444PLE
:
2429 case PIX_FMT_YUV444PBE
:
2433 case PIX_FMT_YUV422P
:
2434 case PIX_FMT_YUV422PLE
:
2435 case PIX_FMT_YUV422PBE
:
2439 case PIX_FMT_YUV411P
:
2450 static uint16_t roundToInt16(int64_t f
){
2451 int r
= (f
+ (1<<15))>>16;
2452 if (r
<-0x7FFF) return 0x8000;
2453 else if (r
> 0x7FFF) return 0x7FFF;
2457 int sws_setColorspaceDetails(SwsContext
*c
, const int inv_table
[4], int srcRange
, const int table
[4], int dstRange
, int brightness
, int contrast
, int saturation
){
2458 int64_t crv
= inv_table
[0];
2459 int64_t cbu
= inv_table
[1];
2460 int64_t cgu
= -inv_table
[2];
2461 int64_t cgv
= -inv_table
[3];
2465 memcpy(c
->srcColorspaceTable
, inv_table
, sizeof(int)*4);
2466 memcpy(c
->dstColorspaceTable
, table
, sizeof(int)*4);
2468 c
->brightness
= brightness
;
2469 c
->contrast
= contrast
;
2470 c
->saturation
= saturation
;
2471 c
->srcRange
= srcRange
;
2472 c
->dstRange
= dstRange
;
2473 if (isYUV(c
->dstFormat
) || isGray(c
->dstFormat
)) return -1;
2475 c
->uOffset
= 0x0400040004000400LL
;
2476 c
->vOffset
= 0x0400040004000400LL
;
2482 crv
= (crv
*224) / 255;
2483 cbu
= (cbu
*224) / 255;
2484 cgu
= (cgu
*224) / 255;
2485 cgv
= (cgv
*224) / 255;
2488 cy
= (cy
*contrast
)>>16;
2489 crv
= (crv
*contrast
* saturation
)>>32;
2490 cbu
= (cbu
*contrast
* saturation
)>>32;
2491 cgu
= (cgu
*contrast
* saturation
)>>32;
2492 cgv
= (cgv
*contrast
* saturation
)>>32;
2494 oy
-= 256*brightness
;
2496 c
->yCoeff
= roundToInt16(cy
*8192) * 0x0001000100010001ULL
;
2497 c
->vrCoeff
= roundToInt16(crv
*8192) * 0x0001000100010001ULL
;
2498 c
->ubCoeff
= roundToInt16(cbu
*8192) * 0x0001000100010001ULL
;
2499 c
->vgCoeff
= roundToInt16(cgv
*8192) * 0x0001000100010001ULL
;
2500 c
->ugCoeff
= roundToInt16(cgu
*8192) * 0x0001000100010001ULL
;
2501 c
->yOffset
= roundToInt16(oy
* 8) * 0x0001000100010001ULL
;
2503 c
->yuv2rgb_y_coeff
= (int16_t)roundToInt16(cy
<<13);
2504 c
->yuv2rgb_y_offset
= (int16_t)roundToInt16(oy
<< 9);
2505 c
->yuv2rgb_v2r_coeff
= (int16_t)roundToInt16(crv
<<13);
2506 c
->yuv2rgb_v2g_coeff
= (int16_t)roundToInt16(cgv
<<13);
2507 c
->yuv2rgb_u2g_coeff
= (int16_t)roundToInt16(cgu
<<13);
2508 c
->yuv2rgb_u2b_coeff
= (int16_t)roundToInt16(cbu
<<13);
2510 ff_yuv2rgb_c_init_tables(c
, inv_table
, srcRange
, brightness
, contrast
, saturation
);
2513 #ifdef COMPILE_ALTIVEC
2514 if (c
->flags
& SWS_CPU_CAPS_ALTIVEC
)
2515 ff_yuv2rgb_init_tables_altivec(c
, inv_table
, brightness
, contrast
, saturation
);
2520 int sws_getColorspaceDetails(SwsContext
*c
, int **inv_table
, int *srcRange
, int **table
, int *dstRange
, int *brightness
, int *contrast
, int *saturation
){
2521 if (isYUV(c
->dstFormat
) || isGray(c
->dstFormat
)) return -1;
2523 *inv_table
= c
->srcColorspaceTable
;
2524 *table
= c
->dstColorspaceTable
;
2525 *srcRange
= c
->srcRange
;
2526 *dstRange
= c
->dstRange
;
2527 *brightness
= c
->brightness
;
2528 *contrast
= c
->contrast
;
2529 *saturation
= c
->saturation
;
2534 static int handle_jpeg(enum PixelFormat
*format
)
2537 case PIX_FMT_YUVJ420P
:
2538 *format
= PIX_FMT_YUV420P
;
2540 case PIX_FMT_YUVJ422P
:
2541 *format
= PIX_FMT_YUV422P
;
2543 case PIX_FMT_YUVJ444P
:
2544 *format
= PIX_FMT_YUV444P
;
2546 case PIX_FMT_YUVJ440P
:
2547 *format
= PIX_FMT_YUV440P
;
2554 SwsContext
*sws_getContext(int srcW
, int srcH
, enum PixelFormat srcFormat
, int dstW
, int dstH
, enum PixelFormat dstFormat
, int flags
,
2555 SwsFilter
*srcFilter
, SwsFilter
*dstFilter
, const double *param
)
2560 int usesVFilter
, usesHFilter
;
2561 int unscaled
, needsDither
;
2562 int srcRange
, dstRange
;
2563 SwsFilter dummyFilter
= {NULL
, NULL
, NULL
, NULL
};
2565 if (flags
& SWS_CPU_CAPS_MMX
)
2566 __asm__
volatile("emms\n\t"::: "memory");
2569 #if !CONFIG_RUNTIME_CPUDETECT || !CONFIG_GPL //ensure that the flags match the compiled variant if cpudetect is off
2570 flags
&= ~(SWS_CPU_CAPS_MMX
|SWS_CPU_CAPS_MMX2
|SWS_CPU_CAPS_3DNOW
|SWS_CPU_CAPS_ALTIVEC
|SWS_CPU_CAPS_BFIN
);
2572 flags
|= SWS_CPU_CAPS_MMX
|SWS_CPU_CAPS_MMX2
;
2574 flags
|= SWS_CPU_CAPS_MMX
|SWS_CPU_CAPS_3DNOW
;
2576 flags
|= SWS_CPU_CAPS_MMX
;
2578 flags
|= SWS_CPU_CAPS_ALTIVEC
;
2580 flags
|= SWS_CPU_CAPS_BFIN
;
2582 #endif /* CONFIG_RUNTIME_CPUDETECT */
2583 if (clip_table
[512] != 255) globalInit();
2584 if (!rgb15to16
) sws_rgb2rgb_init(flags
);
2586 unscaled
= (srcW
== dstW
&& srcH
== dstH
);
2587 needsDither
= (isBGR(dstFormat
) || isRGB(dstFormat
))
2588 && (fmt_depth(dstFormat
))<24
2589 && ((fmt_depth(dstFormat
))<(fmt_depth(srcFormat
)) || (!(isRGB(srcFormat
) || isBGR(srcFormat
))));
2591 srcRange
= handle_jpeg(&srcFormat
);
2592 dstRange
= handle_jpeg(&dstFormat
);
2594 if (!isSupportedIn(srcFormat
))
2596 av_log(NULL
, AV_LOG_ERROR
, "swScaler: %s is not supported as input pixel format\n", sws_format_name(srcFormat
));
2599 if (!isSupportedOut(dstFormat
))
2601 av_log(NULL
, AV_LOG_ERROR
, "swScaler: %s is not supported as output pixel format\n", sws_format_name(dstFormat
));
2605 i
= flags
& ( SWS_POINT
2616 if(!i
|| (i
& (i
-1)))
2618 av_log(NULL
, AV_LOG_ERROR
, "swScaler: Exactly one scaler algorithm must be chosen\n");
2623 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
2625 av_log(NULL
, AV_LOG_ERROR
, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
2626 srcW
, srcH
, dstW
, dstH
);
2629 if(srcW
> VOFW
|| dstW
> VOFW
){
2630 av_log(NULL
, AV_LOG_ERROR
, "swScaler: Compile-time maximum width is "AV_STRINGIFY(VOFW
)" change VOF/VOFW and recompile\n");
2634 if (!dstFilter
) dstFilter
= &dummyFilter
;
2635 if (!srcFilter
) srcFilter
= &dummyFilter
;
2637 c
= av_mallocz(sizeof(SwsContext
));
2639 c
->av_class
= &sws_context_class
;
2644 c
->lumXInc
= ((srcW
<<16) + (dstW
>>1))/dstW
;
2645 c
->lumYInc
= ((srcH
<<16) + (dstH
>>1))/dstH
;
2647 c
->dstFormat
= dstFormat
;
2648 c
->srcFormat
= srcFormat
;
2649 c
->vRounder
= 4* 0x0001000100010001ULL
;
2651 usesHFilter
= usesVFilter
= 0;
2652 if (dstFilter
->lumV
&& dstFilter
->lumV
->length
>1) usesVFilter
=1;
2653 if (dstFilter
->lumH
&& dstFilter
->lumH
->length
>1) usesHFilter
=1;
2654 if (dstFilter
->chrV
&& dstFilter
->chrV
->length
>1) usesVFilter
=1;
2655 if (dstFilter
->chrH
&& dstFilter
->chrH
->length
>1) usesHFilter
=1;
2656 if (srcFilter
->lumV
&& srcFilter
->lumV
->length
>1) usesVFilter
=1;
2657 if (srcFilter
->lumH
&& srcFilter
->lumH
->length
>1) usesHFilter
=1;
2658 if (srcFilter
->chrV
&& srcFilter
->chrV
->length
>1) usesVFilter
=1;
2659 if (srcFilter
->chrH
&& srcFilter
->chrH
->length
>1) usesHFilter
=1;
2661 getSubSampleFactors(&c
->chrSrcHSubSample
, &c
->chrSrcVSubSample
, srcFormat
);
2662 getSubSampleFactors(&c
->chrDstHSubSample
, &c
->chrDstVSubSample
, dstFormat
);
2664 // reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation
2665 if ((isBGR(dstFormat
) || isRGB(dstFormat
)) && !(flags
&SWS_FULL_CHR_H_INT
)) c
->chrDstHSubSample
=1;
2667 // drop some chroma lines if the user wants it
2668 c
->vChrDrop
= (flags
&SWS_SRC_V_CHR_DROP_MASK
)>>SWS_SRC_V_CHR_DROP_SHIFT
;
2669 c
->chrSrcVSubSample
+= c
->vChrDrop
;
2671 // drop every other pixel for chroma calculation unless user wants full chroma
2672 if ((isBGR(srcFormat
) || isRGB(srcFormat
)) && !(flags
&SWS_FULL_CHR_H_INP
)
2673 && srcFormat
!=PIX_FMT_RGB8
&& srcFormat
!=PIX_FMT_BGR8
2674 && srcFormat
!=PIX_FMT_RGB4
&& srcFormat
!=PIX_FMT_BGR4
2675 && srcFormat
!=PIX_FMT_RGB4_BYTE
&& srcFormat
!=PIX_FMT_BGR4_BYTE
2676 && ((dstW
>>c
->chrDstHSubSample
) <= (srcW
>>1) || (flags
&(SWS_FAST_BILINEAR
|SWS_POINT
))))
2677 c
->chrSrcHSubSample
=1;
2680 c
->param
[0] = param
[0];
2681 c
->param
[1] = param
[1];
2684 c
->param
[1] = SWS_PARAM_DEFAULT
;
2687 c
->chrIntHSubSample
= c
->chrDstHSubSample
;
2688 c
->chrIntVSubSample
= c
->chrSrcVSubSample
;
2690 // Note the -((-x)>>y) is so that we always round toward +inf.
2691 c
->chrSrcW
= -((-srcW
) >> c
->chrSrcHSubSample
);
2692 c
->chrSrcH
= -((-srcH
) >> c
->chrSrcVSubSample
);
2693 c
->chrDstW
= -((-dstW
) >> c
->chrDstHSubSample
);
2694 c
->chrDstH
= -((-dstH
) >> c
->chrDstVSubSample
);
2696 sws_setColorspaceDetails(c
, ff_yuv2rgb_coeffs
[SWS_CS_DEFAULT
], srcRange
, ff_yuv2rgb_coeffs
[SWS_CS_DEFAULT
] /* FIXME*/, dstRange
, 0, 1<<16, 1<<16);
2698 /* unscaled special cases */
2699 if (unscaled
&& !usesHFilter
&& !usesVFilter
&& (srcRange
== dstRange
|| isBGR(dstFormat
) || isRGB(dstFormat
)))
2702 if ((srcFormat
== PIX_FMT_YUV420P
|| srcFormat
== PIX_FMT_YUVA420P
) && (dstFormat
== PIX_FMT_NV12
|| dstFormat
== PIX_FMT_NV21
))
2704 c
->swScale
= PlanarToNV12Wrapper
;
2707 if ((srcFormat
==PIX_FMT_YUV420P
|| srcFormat
==PIX_FMT_YUV422P
|| srcFormat
==PIX_FMT_YUVA420P
) && (isBGR(dstFormat
) || isRGB(dstFormat
))
2708 && !(flags
& SWS_ACCURATE_RND
) && !(dstH
&1))
2710 c
->swScale
= ff_yuv2rgb_get_func_ptr(c
);
2713 if (srcFormat
==PIX_FMT_YUV410P
&& (dstFormat
==PIX_FMT_YUV420P
|| dstFormat
==PIX_FMT_YUVA420P
) && !(flags
& SWS_BITEXACT
))
2715 c
->swScale
= yvu9toyv12Wrapper
;
2719 if (srcFormat
==PIX_FMT_BGR24
&& (dstFormat
==PIX_FMT_YUV420P
|| dstFormat
==PIX_FMT_YUVA420P
) && !(flags
& SWS_ACCURATE_RND
))
2720 c
->swScale
= bgr24toyv12Wrapper
;
2722 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
2723 if ( (isBGR(srcFormat
) || isRGB(srcFormat
))
2724 && (isBGR(dstFormat
) || isRGB(dstFormat
))
2725 && srcFormat
!= PIX_FMT_BGR8
&& dstFormat
!= PIX_FMT_BGR8
2726 && srcFormat
!= PIX_FMT_RGB8
&& dstFormat
!= PIX_FMT_RGB8
2727 && srcFormat
!= PIX_FMT_BGR4
&& dstFormat
!= PIX_FMT_BGR4
2728 && srcFormat
!= PIX_FMT_RGB4
&& dstFormat
!= PIX_FMT_RGB4
2729 && srcFormat
!= PIX_FMT_BGR4_BYTE
&& dstFormat
!= PIX_FMT_BGR4_BYTE
2730 && srcFormat
!= PIX_FMT_RGB4_BYTE
&& dstFormat
!= PIX_FMT_RGB4_BYTE
2731 && srcFormat
!= PIX_FMT_MONOBLACK
&& dstFormat
!= PIX_FMT_MONOBLACK
2732 && srcFormat
!= PIX_FMT_MONOWHITE
&& dstFormat
!= PIX_FMT_MONOWHITE
2733 && dstFormat
!= PIX_FMT_RGB32_1
2734 && dstFormat
!= PIX_FMT_BGR32_1
2735 && (!needsDither
|| (c
->flags
&(SWS_FAST_BILINEAR
|SWS_POINT
))))
2736 c
->swScale
= rgb2rgbWrapper
;
2738 if ((usePal(srcFormat
) && (
2739 dstFormat
== PIX_FMT_RGB32
||
2740 dstFormat
== PIX_FMT_RGB32_1
||
2741 dstFormat
== PIX_FMT_RGB24
||
2742 dstFormat
== PIX_FMT_BGR32
||
2743 dstFormat
== PIX_FMT_BGR32_1
||
2744 dstFormat
== PIX_FMT_BGR24
)))
2745 c
->swScale
= pal2rgbWrapper
;
2747 if (srcFormat
== PIX_FMT_YUV422P
)
2749 if (dstFormat
== PIX_FMT_YUYV422
)
2750 c
->swScale
= YUV422PToYuy2Wrapper
;
2751 else if (dstFormat
== PIX_FMT_UYVY422
)
2752 c
->swScale
= YUV422PToUyvyWrapper
;
2755 /* LQ converters if -sws 0 or -sws 4*/
2756 if (c
->flags
&(SWS_FAST_BILINEAR
|SWS_POINT
)){
2758 if (srcFormat
== PIX_FMT_YUV420P
|| srcFormat
== PIX_FMT_YUVA420P
)
2760 if (dstFormat
== PIX_FMT_YUYV422
)
2761 c
->swScale
= PlanarToYuy2Wrapper
;
2762 else if (dstFormat
== PIX_FMT_UYVY422
)
2763 c
->swScale
= PlanarToUyvyWrapper
;
2766 if(srcFormat
== PIX_FMT_YUYV422
&& (dstFormat
== PIX_FMT_YUV420P
|| dstFormat
== PIX_FMT_YUVA420P
))
2767 c
->swScale
= YUYV2YUV420Wrapper
;
2768 if(srcFormat
== PIX_FMT_UYVY422
&& (dstFormat
== PIX_FMT_YUV420P
|| dstFormat
== PIX_FMT_YUVA420P
))
2769 c
->swScale
= UYVY2YUV420Wrapper
;
2770 if(srcFormat
== PIX_FMT_YUYV422
&& dstFormat
== PIX_FMT_YUV422P
)
2771 c
->swScale
= YUYV2YUV422Wrapper
;
2772 if(srcFormat
== PIX_FMT_UYVY422
&& dstFormat
== PIX_FMT_YUV422P
)
2773 c
->swScale
= UYVY2YUV422Wrapper
;
2775 #ifdef COMPILE_ALTIVEC
2776 if ((c
->flags
& SWS_CPU_CAPS_ALTIVEC
) &&
2777 !(c
->flags
& SWS_BITEXACT
) &&
2778 srcFormat
== PIX_FMT_YUV420P
) {
2779 // unscaled YV12 -> packed YUV, we want speed
2780 if (dstFormat
== PIX_FMT_YUYV422
)
2781 c
->swScale
= yv12toyuy2_unscaled_altivec
;
2782 else if (dstFormat
== PIX_FMT_UYVY422
)
2783 c
->swScale
= yv12touyvy_unscaled_altivec
;
2788 if ( srcFormat
== dstFormat
2789 || (srcFormat
== PIX_FMT_YUVA420P
&& dstFormat
== PIX_FMT_YUV420P
)
2790 || (srcFormat
== PIX_FMT_YUV420P
&& dstFormat
== PIX_FMT_YUVA420P
)
2791 || (isPlanarYUV(srcFormat
) && isGray(dstFormat
))
2792 || (isPlanarYUV(dstFormat
) && isGray(srcFormat
))
2793 || (isGray(dstFormat
) && isGray(srcFormat
))
2794 || (isPlanarYUV(srcFormat
) && isPlanarYUV(dstFormat
)
2795 && c
->chrDstHSubSample
== c
->chrSrcHSubSample
2796 && c
->chrDstVSubSample
== c
->chrSrcVSubSample
))
2798 if (isPacked(c
->srcFormat
))
2799 c
->swScale
= packedCopy
;
2800 else /* Planar YUV or gray */
2801 c
->swScale
= planarCopy
;
2804 if (flags
& SWS_CPU_CAPS_BFIN
)
2805 ff_bfin_get_unscaled_swscale (c
);
2809 if (flags
&SWS_PRINT_INFO
)
2810 av_log(c
, AV_LOG_INFO
, "using unscaled %s -> %s special converter\n",
2811 sws_format_name(srcFormat
), sws_format_name(dstFormat
));
2816 if (flags
& SWS_CPU_CAPS_MMX2
)
2818 c
->canMMX2BeUsed
= (dstW
>=srcW
&& (dstW
&31)==0 && (srcW
&15)==0) ? 1 : 0;
2819 if (!c
->canMMX2BeUsed
&& dstW
>=srcW
&& (srcW
&15)==0 && (flags
&SWS_FAST_BILINEAR
))
2821 if (flags
&SWS_PRINT_INFO
)
2822 av_log(c
, AV_LOG_INFO
, "output width is not a multiple of 32 -> no MMX2 scaler\n");
2824 if (usesHFilter
) c
->canMMX2BeUsed
=0;
2829 c
->chrXInc
= ((c
->chrSrcW
<<16) + (c
->chrDstW
>>1))/c
->chrDstW
;
2830 c
->chrYInc
= ((c
->chrSrcH
<<16) + (c
->chrDstH
>>1))/c
->chrDstH
;
2832 // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
2833 // but only for the FAST_BILINEAR mode otherwise do correct scaling
2834 // n-2 is the last chrominance sample available
2835 // this is not perfect, but no one should notice the difference, the more correct variant
2836 // would be like the vertical one, but that would require some special code for the
2837 // first and last pixel
2838 if (flags
&SWS_FAST_BILINEAR
)
2840 if (c
->canMMX2BeUsed
)
2845 //we don't use the x86 asm scaler if MMX is available
2846 else if (flags
& SWS_CPU_CAPS_MMX
)
2848 c
->lumXInc
= ((srcW
-2)<<16)/(dstW
-2) - 20;
2849 c
->chrXInc
= ((c
->chrSrcW
-2)<<16)/(c
->chrDstW
-2) - 20;
2853 /* precalculate horizontal scaler filter coefficients */
2855 const int filterAlign
=
2856 (flags
& SWS_CPU_CAPS_MMX
) ? 4 :
2857 (flags
& SWS_CPU_CAPS_ALTIVEC
) ? 8 :
2860 initFilter(&c
->hLumFilter
, &c
->hLumFilterPos
, &c
->hLumFilterSize
, c
->lumXInc
,
2861 srcW
, dstW
, filterAlign
, 1<<14,
2862 (flags
&SWS_BICUBLIN
) ? (flags
|SWS_BICUBIC
) : flags
,
2863 srcFilter
->lumH
, dstFilter
->lumH
, c
->param
);
2864 initFilter(&c
->hChrFilter
, &c
->hChrFilterPos
, &c
->hChrFilterSize
, c
->chrXInc
,
2865 c
->chrSrcW
, c
->chrDstW
, filterAlign
, 1<<14,
2866 (flags
&SWS_BICUBLIN
) ? (flags
|SWS_BILINEAR
) : flags
,
2867 srcFilter
->chrH
, dstFilter
->chrH
, c
->param
);
2869 #define MAX_FUNNY_CODE_SIZE 10000
2870 #if defined(COMPILE_MMX2)
2871 // can't downscale !!!
2872 if (c
->canMMX2BeUsed
&& (flags
& SWS_FAST_BILINEAR
))
2874 #ifdef MAP_ANONYMOUS
2875 c
->funnyYCode
= mmap(NULL
, MAX_FUNNY_CODE_SIZE
, PROT_EXEC
| PROT_READ
| PROT_WRITE
, MAP_PRIVATE
| MAP_ANONYMOUS
, 0, 0);
2876 c
->funnyUVCode
= mmap(NULL
, MAX_FUNNY_CODE_SIZE
, PROT_EXEC
| PROT_READ
| PROT_WRITE
, MAP_PRIVATE
| MAP_ANONYMOUS
, 0, 0);
2877 #elif HAVE_VIRTUALALLOC
2878 c
->funnyYCode
= VirtualAlloc(NULL
, MAX_FUNNY_CODE_SIZE
, MEM_COMMIT
, PAGE_EXECUTE_READWRITE
);
2879 c
->funnyUVCode
= VirtualAlloc(NULL
, MAX_FUNNY_CODE_SIZE
, MEM_COMMIT
, PAGE_EXECUTE_READWRITE
);
2881 c
->funnyYCode
= av_malloc(MAX_FUNNY_CODE_SIZE
);
2882 c
->funnyUVCode
= av_malloc(MAX_FUNNY_CODE_SIZE
);
2885 c
->lumMmx2Filter
= av_malloc((dstW
/8+8)*sizeof(int16_t));
2886 c
->chrMmx2Filter
= av_malloc((c
->chrDstW
/4+8)*sizeof(int16_t));
2887 c
->lumMmx2FilterPos
= av_malloc((dstW
/2/8+8)*sizeof(int32_t));
2888 c
->chrMmx2FilterPos
= av_malloc((c
->chrDstW
/2/4+8)*sizeof(int32_t));
2890 initMMX2HScaler( dstW
, c
->lumXInc
, c
->funnyYCode
, c
->lumMmx2Filter
, c
->lumMmx2FilterPos
, 8);
2891 initMMX2HScaler(c
->chrDstW
, c
->chrXInc
, c
->funnyUVCode
, c
->chrMmx2Filter
, c
->chrMmx2FilterPos
, 4);
2893 #endif /* defined(COMPILE_MMX2) */
2894 } // initialize horizontal stuff
2898 /* precalculate vertical scaler filter coefficients */
2900 const int filterAlign
=
2901 (flags
& SWS_CPU_CAPS_MMX
) && (flags
& SWS_ACCURATE_RND
) ? 2 :
2902 (flags
& SWS_CPU_CAPS_ALTIVEC
) ? 8 :
2905 initFilter(&c
->vLumFilter
, &c
->vLumFilterPos
, &c
->vLumFilterSize
, c
->lumYInc
,
2906 srcH
, dstH
, filterAlign
, (1<<12),
2907 (flags
&SWS_BICUBLIN
) ? (flags
|SWS_BICUBIC
) : flags
,
2908 srcFilter
->lumV
, dstFilter
->lumV
, c
->param
);
2909 initFilter(&c
->vChrFilter
, &c
->vChrFilterPos
, &c
->vChrFilterSize
, c
->chrYInc
,
2910 c
->chrSrcH
, c
->chrDstH
, filterAlign
, (1<<12),
2911 (flags
&SWS_BICUBLIN
) ? (flags
|SWS_BILINEAR
) : flags
,
2912 srcFilter
->chrV
, dstFilter
->chrV
, c
->param
);
2915 c
->vYCoeffsBank
= av_malloc(sizeof (vector
signed short)*c
->vLumFilterSize
*c
->dstH
);
2916 c
->vCCoeffsBank
= av_malloc(sizeof (vector
signed short)*c
->vChrFilterSize
*c
->chrDstH
);
2918 for (i
=0;i
<c
->vLumFilterSize
*c
->dstH
;i
++) {
2920 short *p
= (short *)&c
->vYCoeffsBank
[i
];
2922 p
[j
] = c
->vLumFilter
[i
];
2925 for (i
=0;i
<c
->vChrFilterSize
*c
->chrDstH
;i
++) {
2927 short *p
= (short *)&c
->vCCoeffsBank
[i
];
2929 p
[j
] = c
->vChrFilter
[i
];
2934 // calculate buffer sizes so that they won't run out while handling these damn slices
2935 c
->vLumBufSize
= c
->vLumFilterSize
;
2936 c
->vChrBufSize
= c
->vChrFilterSize
;
2937 for (i
=0; i
<dstH
; i
++)
2939 int chrI
= i
*c
->chrDstH
/ dstH
;
2940 int nextSlice
= FFMAX(c
->vLumFilterPos
[i
] + c
->vLumFilterSize
- 1,
2941 ((c
->vChrFilterPos
[chrI
] + c
->vChrFilterSize
- 1)<<c
->chrSrcVSubSample
));
2943 nextSlice
>>= c
->chrSrcVSubSample
;
2944 nextSlice
<<= c
->chrSrcVSubSample
;
2945 if (c
->vLumFilterPos
[i
] + c
->vLumBufSize
< nextSlice
)
2946 c
->vLumBufSize
= nextSlice
- c
->vLumFilterPos
[i
];
2947 if (c
->vChrFilterPos
[chrI
] + c
->vChrBufSize
< (nextSlice
>>c
->chrSrcVSubSample
))
2948 c
->vChrBufSize
= (nextSlice
>>c
->chrSrcVSubSample
) - c
->vChrFilterPos
[chrI
];
2951 // allocate pixbufs (we use dynamic allocation because otherwise we would need to
2952 c
->lumPixBuf
= av_malloc(c
->vLumBufSize
*2*sizeof(int16_t*));
2953 c
->chrPixBuf
= av_malloc(c
->vChrBufSize
*2*sizeof(int16_t*));
2954 if (CONFIG_SWSCALE_ALPHA
&& isALPHA(c
->srcFormat
) && isALPHA(c
->dstFormat
))
2955 c
->alpPixBuf
= av_malloc(c
->vLumBufSize
*2*sizeof(int16_t*));
2956 //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)
2957 /* align at 16 bytes for AltiVec */
2958 for (i
=0; i
<c
->vLumBufSize
; i
++)
2959 c
->lumPixBuf
[i
]= c
->lumPixBuf
[i
+c
->vLumBufSize
]= av_mallocz(VOF
+1);
2960 for (i
=0; i
<c
->vChrBufSize
; i
++)
2961 c
->chrPixBuf
[i
]= c
->chrPixBuf
[i
+c
->vChrBufSize
]= av_malloc((VOF
+1)*2);
2962 if (CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
)
2963 for (i
=0; i
<c
->vLumBufSize
; i
++)
2964 c
->alpPixBuf
[i
]= c
->alpPixBuf
[i
+c
->vLumBufSize
]= av_mallocz(VOF
+1);
2966 //try to avoid drawing green stuff between the right end and the stride end
2967 for (i
=0; i
<c
->vChrBufSize
; i
++) memset(c
->chrPixBuf
[i
], 64, (VOF
+1)*2);
2969 assert(2*VOFW
== VOF
);
2971 assert(c
->chrDstH
<= dstH
);
2973 if (flags
&SWS_PRINT_INFO
)
2976 const char *dither
= " dithered";
2978 const char *dither
= "";
2980 if (flags
&SWS_FAST_BILINEAR
)
2981 av_log(c
, AV_LOG_INFO
, "FAST_BILINEAR scaler, ");
2982 else if (flags
&SWS_BILINEAR
)
2983 av_log(c
, AV_LOG_INFO
, "BILINEAR scaler, ");
2984 else if (flags
&SWS_BICUBIC
)
2985 av_log(c
, AV_LOG_INFO
, "BICUBIC scaler, ");
2986 else if (flags
&SWS_X
)
2987 av_log(c
, AV_LOG_INFO
, "Experimental scaler, ");
2988 else if (flags
&SWS_POINT
)
2989 av_log(c
, AV_LOG_INFO
, "Nearest Neighbor / POINT scaler, ");
2990 else if (flags
&SWS_AREA
)
2991 av_log(c
, AV_LOG_INFO
, "Area Averageing scaler, ");
2992 else if (flags
&SWS_BICUBLIN
)
2993 av_log(c
, AV_LOG_INFO
, "luma BICUBIC / chroma BILINEAR scaler, ");
2994 else if (flags
&SWS_GAUSS
)
2995 av_log(c
, AV_LOG_INFO
, "Gaussian scaler, ");
2996 else if (flags
&SWS_SINC
)
2997 av_log(c
, AV_LOG_INFO
, "Sinc scaler, ");
2998 else if (flags
&SWS_LANCZOS
)
2999 av_log(c
, AV_LOG_INFO
, "Lanczos scaler, ");
3000 else if (flags
&SWS_SPLINE
)
3001 av_log(c
, AV_LOG_INFO
, "Bicubic spline scaler, ");
3003 av_log(c
, AV_LOG_INFO
, "ehh flags invalid?! ");
3005 if (dstFormat
==PIX_FMT_BGR555
|| dstFormat
==PIX_FMT_BGR565
)
3006 av_log(c
, AV_LOG_INFO
, "from %s to%s %s ",
3007 sws_format_name(srcFormat
), dither
, sws_format_name(dstFormat
));
3009 av_log(c
, AV_LOG_INFO
, "from %s to %s ",
3010 sws_format_name(srcFormat
), sws_format_name(dstFormat
));
3012 if (flags
& SWS_CPU_CAPS_MMX2
)
3013 av_log(c
, AV_LOG_INFO
, "using MMX2\n");
3014 else if (flags
& SWS_CPU_CAPS_3DNOW
)
3015 av_log(c
, AV_LOG_INFO
, "using 3DNOW\n");
3016 else if (flags
& SWS_CPU_CAPS_MMX
)
3017 av_log(c
, AV_LOG_INFO
, "using MMX\n");
3018 else if (flags
& SWS_CPU_CAPS_ALTIVEC
)
3019 av_log(c
, AV_LOG_INFO
, "using AltiVec\n");
3021 av_log(c
, AV_LOG_INFO
, "using C\n");
3024 if (flags
& SWS_PRINT_INFO
)
3026 if (flags
& SWS_CPU_CAPS_MMX
)
3028 if (c
->canMMX2BeUsed
&& (flags
&SWS_FAST_BILINEAR
))
3029 av_log(c
, AV_LOG_VERBOSE
, "using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
3032 if (c
->hLumFilterSize
==4)
3033 av_log(c
, AV_LOG_VERBOSE
, "using 4-tap MMX scaler for horizontal luminance scaling\n");
3034 else if (c
->hLumFilterSize
==8)
3035 av_log(c
, AV_LOG_VERBOSE
, "using 8-tap MMX scaler for horizontal luminance scaling\n");
3037 av_log(c
, AV_LOG_VERBOSE
, "using n-tap MMX scaler for horizontal luminance scaling\n");
3039 if (c
->hChrFilterSize
==4)
3040 av_log(c
, AV_LOG_VERBOSE
, "using 4-tap MMX scaler for horizontal chrominance scaling\n");
3041 else if (c
->hChrFilterSize
==8)
3042 av_log(c
, AV_LOG_VERBOSE
, "using 8-tap MMX scaler for horizontal chrominance scaling\n");
3044 av_log(c
, AV_LOG_VERBOSE
, "using n-tap MMX scaler for horizontal chrominance scaling\n");
3050 av_log(c
, AV_LOG_VERBOSE
, "using x86 asm scaler for horizontal scaling\n");
3052 if (flags
& SWS_FAST_BILINEAR
)
3053 av_log(c
, AV_LOG_VERBOSE
, "using FAST_BILINEAR C scaler for horizontal scaling\n");
3055 av_log(c
, AV_LOG_VERBOSE
, "using C scaler for horizontal scaling\n");
3058 if (isPlanarYUV(dstFormat
))
3060 if (c
->vLumFilterSize
==1)
3061 av_log(c
, AV_LOG_VERBOSE
, "using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
3063 av_log(c
, AV_LOG_VERBOSE
, "using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
3067 if (c
->vLumFilterSize
==1 && c
->vChrFilterSize
==2)
3068 av_log(c
, AV_LOG_VERBOSE
, "using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
3069 " 2-tap scaler for vertical chrominance scaling (BGR)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
3070 else if (c
->vLumFilterSize
==2 && c
->vChrFilterSize
==2)
3071 av_log(c
, AV_LOG_VERBOSE
, "using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
3073 av_log(c
, AV_LOG_VERBOSE
, "using n-tap %s scaler for vertical scaling (BGR)\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
3076 if (dstFormat
==PIX_FMT_BGR24
)
3077 av_log(c
, AV_LOG_VERBOSE
, "using %s YV12->BGR24 converter\n",
3078 (flags
& SWS_CPU_CAPS_MMX2
) ? "MMX2" : ((flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C"));
3079 else if (dstFormat
==PIX_FMT_RGB32
)
3080 av_log(c
, AV_LOG_VERBOSE
, "using %s YV12->BGR32 converter\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
3081 else if (dstFormat
==PIX_FMT_BGR565
)
3082 av_log(c
, AV_LOG_VERBOSE
, "using %s YV12->BGR16 converter\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
3083 else if (dstFormat
==PIX_FMT_BGR555
)
3084 av_log(c
, AV_LOG_VERBOSE
, "using %s YV12->BGR15 converter\n", (flags
& SWS_CPU_CAPS_MMX
) ? "MMX" : "C");
3086 av_log(c
, AV_LOG_VERBOSE
, "%dx%d -> %dx%d\n", srcW
, srcH
, dstW
, dstH
);
3088 if (flags
& SWS_PRINT_INFO
)
3090 av_log(c
, AV_LOG_DEBUG
, "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
3091 c
->srcW
, c
->srcH
, c
->dstW
, c
->dstH
, c
->lumXInc
, c
->lumYInc
);
3092 av_log(c
, AV_LOG_DEBUG
, "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
3093 c
->chrSrcW
, c
->chrSrcH
, c
->chrDstW
, c
->chrDstH
, c
->chrXInc
, c
->chrYInc
);
3096 c
->swScale
= getSwsFunc(c
);
3100 static void reset_ptr(uint8_t* src
[], int format
){
3101 if(!isALPHA(format
))
3103 if(!isPlanarYUV(format
)){
3105 if( format
!= PIX_FMT_PAL8
3106 && format
!= PIX_FMT_RGB8
3107 && format
!= PIX_FMT_BGR8
3108 && format
!= PIX_FMT_RGB4_BYTE
3109 && format
!= PIX_FMT_BGR4_BYTE
3116 * swscale wrapper, so we don't need to export the SwsContext.
3117 * Assumes planar YUV to be in YUV order instead of YVU.
3119 int sws_scale(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
3120 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
3122 uint8_t* src2
[4]= {src
[0], src
[1], src
[2], src
[3]};
3123 uint8_t* dst2
[4]= {dst
[0], dst
[1], dst
[2], dst
[3]};
3125 if (c
->sliceDir
== 0 && srcSliceY
!= 0 && srcSliceY
+ srcSliceH
!= c
->srcH
) {
3126 av_log(c
, AV_LOG_ERROR
, "Slices start in the middle!\n");
3129 if (c
->sliceDir
== 0) {
3130 if (srcSliceY
== 0) c
->sliceDir
= 1; else c
->sliceDir
= -1;
3133 if (usePal(c
->srcFormat
)){
3134 for (i
=0; i
<256; i
++){
3135 int p
, r
, g
, b
,y
,u
,v
;
3136 if(c
->srcFormat
== PIX_FMT_PAL8
){
3137 p
=((uint32_t*)(src
[1]))[i
];
3141 }else if(c
->srcFormat
== PIX_FMT_RGB8
){
3145 }else if(c
->srcFormat
== PIX_FMT_BGR8
){
3149 }else if(c
->srcFormat
== PIX_FMT_RGB4_BYTE
){
3154 assert(c
->srcFormat
== PIX_FMT_BGR4_BYTE
);
3159 y
= av_clip_uint8((RY
*r
+ GY
*g
+ BY
*b
+ ( 33<<(RGB2YUV_SHIFT
-1)))>>RGB2YUV_SHIFT
);
3160 u
= av_clip_uint8((RU
*r
+ GU
*g
+ BU
*b
+ (257<<(RGB2YUV_SHIFT
-1)))>>RGB2YUV_SHIFT
);
3161 v
= av_clip_uint8((RV
*r
+ GV
*g
+ BV
*b
+ (257<<(RGB2YUV_SHIFT
-1)))>>RGB2YUV_SHIFT
);
3162 c
->pal_yuv
[i
]= y
+ (u
<<8) + (v
<<16);
3165 switch(c
->dstFormat
) {
3167 #ifndef WORDS_BIGENDIAN
3170 c
->pal_rgb
[i
]= r
+ (g
<<8) + (b
<<16);
3172 case PIX_FMT_BGR32_1
:
3173 #ifdef WORDS_BIGENDIAN
3176 c
->pal_rgb
[i
]= (r
+ (g
<<8) + (b
<<16)) << 8;
3178 case PIX_FMT_RGB32_1
:
3179 #ifdef WORDS_BIGENDIAN
3182 c
->pal_rgb
[i
]= (b
+ (g
<<8) + (r
<<16)) << 8;
3185 #ifndef WORDS_BIGENDIAN
3189 c
->pal_rgb
[i
]= b
+ (g
<<8) + (r
<<16);
3194 // copy strides, so they can safely be modified
3195 if (c
->sliceDir
== 1) {
3196 // slices go from top to bottom
3197 int srcStride2
[4]= {srcStride
[0], srcStride
[1], srcStride
[2], srcStride
[3]};
3198 int dstStride2
[4]= {dstStride
[0], dstStride
[1], dstStride
[2], dstStride
[3]};
3200 reset_ptr(src2
, c
->srcFormat
);
3201 reset_ptr(dst2
, c
->dstFormat
);
3203 return c
->swScale(c
, src2
, srcStride2
, srcSliceY
, srcSliceH
, dst2
, dstStride2
);
3205 // slices go from bottom to top => we flip the image internally
3206 int srcStride2
[4]= {-srcStride
[0], -srcStride
[1], -srcStride
[2], -srcStride
[3]};
3207 int dstStride2
[4]= {-dstStride
[0], -dstStride
[1], -dstStride
[2], -dstStride
[3]};
3209 src2
[0] += (srcSliceH
-1)*srcStride
[0];
3210 if (!usePal(c
->srcFormat
))
3211 src2
[1] += ((srcSliceH
>>c
->chrSrcVSubSample
)-1)*srcStride
[1];
3212 src2
[2] += ((srcSliceH
>>c
->chrSrcVSubSample
)-1)*srcStride
[2];
3213 src2
[3] += (srcSliceH
-1)*srcStride
[3];
3214 dst2
[0] += ( c
->dstH
-1)*dstStride
[0];
3215 dst2
[1] += ((c
->dstH
>>c
->chrDstVSubSample
)-1)*dstStride
[1];
3216 dst2
[2] += ((c
->dstH
>>c
->chrDstVSubSample
)-1)*dstStride
[2];
3217 dst2
[3] += ( c
->dstH
-1)*dstStride
[3];
3219 reset_ptr(src2
, c
->srcFormat
);
3220 reset_ptr(dst2
, c
->dstFormat
);
3222 return c
->swScale(c
, src2
, srcStride2
, c
->srcH
-srcSliceY
-srcSliceH
, srcSliceH
, dst2
, dstStride2
);
3226 #if LIBSWSCALE_VERSION_MAJOR < 1
3227 int sws_scale_ordered(SwsContext
*c
, uint8_t* src
[], int srcStride
[], int srcSliceY
,
3228 int srcSliceH
, uint8_t* dst
[], int dstStride
[]){
3229 return sws_scale(c
, src
, srcStride
, srcSliceY
, srcSliceH
, dst
, dstStride
);
3233 SwsFilter
*sws_getDefaultFilter(float lumaGBlur
, float chromaGBlur
,
3234 float lumaSharpen
, float chromaSharpen
,
3235 float chromaHShift
, float chromaVShift
,
3238 SwsFilter
*filter
= av_malloc(sizeof(SwsFilter
));
3240 if (lumaGBlur
!=0.0){
3241 filter
->lumH
= sws_getGaussianVec(lumaGBlur
, 3.0);
3242 filter
->lumV
= sws_getGaussianVec(lumaGBlur
, 3.0);
3244 filter
->lumH
= sws_getIdentityVec();
3245 filter
->lumV
= sws_getIdentityVec();
3248 if (chromaGBlur
!=0.0){
3249 filter
->chrH
= sws_getGaussianVec(chromaGBlur
, 3.0);
3250 filter
->chrV
= sws_getGaussianVec(chromaGBlur
, 3.0);
3252 filter
->chrH
= sws_getIdentityVec();
3253 filter
->chrV
= sws_getIdentityVec();
3256 if (chromaSharpen
!=0.0){
3257 SwsVector
*id
= sws_getIdentityVec();
3258 sws_scaleVec(filter
->chrH
, -chromaSharpen
);
3259 sws_scaleVec(filter
->chrV
, -chromaSharpen
);
3260 sws_addVec(filter
->chrH
, id
);
3261 sws_addVec(filter
->chrV
, id
);
3265 if (lumaSharpen
!=0.0){
3266 SwsVector
*id
= sws_getIdentityVec();
3267 sws_scaleVec(filter
->lumH
, -lumaSharpen
);
3268 sws_scaleVec(filter
->lumV
, -lumaSharpen
);
3269 sws_addVec(filter
->lumH
, id
);
3270 sws_addVec(filter
->lumV
, id
);
3274 if (chromaHShift
!= 0.0)
3275 sws_shiftVec(filter
->chrH
, (int)(chromaHShift
+0.5));
3277 if (chromaVShift
!= 0.0)
3278 sws_shiftVec(filter
->chrV
, (int)(chromaVShift
+0.5));
3280 sws_normalizeVec(filter
->chrH
, 1.0);
3281 sws_normalizeVec(filter
->chrV
, 1.0);
3282 sws_normalizeVec(filter
->lumH
, 1.0);
3283 sws_normalizeVec(filter
->lumV
, 1.0);
3285 if (verbose
) sws_printVec2(filter
->chrH
, NULL
, AV_LOG_DEBUG
);
3286 if (verbose
) sws_printVec2(filter
->lumH
, NULL
, AV_LOG_DEBUG
);
3291 SwsVector
*sws_getGaussianVec(double variance
, double quality
){
3292 const int length
= (int)(variance
*quality
+ 0.5) | 1;
3294 double *coeff
= av_malloc(length
*sizeof(double));
3295 double middle
= (length
-1)*0.5;
3296 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3299 vec
->length
= length
;
3301 for (i
=0; i
<length
; i
++)
3303 double dist
= i
-middle
;
3304 coeff
[i
]= exp(-dist
*dist
/(2*variance
*variance
)) / sqrt(2*variance
*PI
);
3307 sws_normalizeVec(vec
, 1.0);
3312 SwsVector
*sws_getConstVec(double c
, int length
){
3314 double *coeff
= av_malloc(length
*sizeof(double));
3315 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3318 vec
->length
= length
;
3320 for (i
=0; i
<length
; i
++)
3327 SwsVector
*sws_getIdentityVec(void){
3328 return sws_getConstVec(1.0, 1);
3331 double sws_dcVec(SwsVector
*a
){
3335 for (i
=0; i
<a
->length
; i
++)
3341 void sws_scaleVec(SwsVector
*a
, double scalar
){
3344 for (i
=0; i
<a
->length
; i
++)
3345 a
->coeff
[i
]*= scalar
;
3348 void sws_normalizeVec(SwsVector
*a
, double height
){
3349 sws_scaleVec(a
, height
/sws_dcVec(a
));
3352 static SwsVector
*sws_getConvVec(SwsVector
*a
, SwsVector
*b
){
3353 int length
= a
->length
+ b
->length
- 1;
3354 double *coeff
= av_malloc(length
*sizeof(double));
3356 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3359 vec
->length
= length
;
3361 for (i
=0; i
<length
; i
++) coeff
[i
]= 0.0;
3363 for (i
=0; i
<a
->length
; i
++)
3365 for (j
=0; j
<b
->length
; j
++)
3367 coeff
[i
+j
]+= a
->coeff
[i
]*b
->coeff
[j
];
3374 static SwsVector
*sws_sumVec(SwsVector
*a
, SwsVector
*b
){
3375 int length
= FFMAX(a
->length
, b
->length
);
3376 double *coeff
= av_malloc(length
*sizeof(double));
3378 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3381 vec
->length
= length
;
3383 for (i
=0; i
<length
; i
++) coeff
[i
]= 0.0;
3385 for (i
=0; i
<a
->length
; i
++) coeff
[i
+ (length
-1)/2 - (a
->length
-1)/2]+= a
->coeff
[i
];
3386 for (i
=0; i
<b
->length
; i
++) coeff
[i
+ (length
-1)/2 - (b
->length
-1)/2]+= b
->coeff
[i
];
3391 static SwsVector
*sws_diffVec(SwsVector
*a
, SwsVector
*b
){
3392 int length
= FFMAX(a
->length
, b
->length
);
3393 double *coeff
= av_malloc(length
*sizeof(double));
3395 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3398 vec
->length
= length
;
3400 for (i
=0; i
<length
; i
++) coeff
[i
]= 0.0;
3402 for (i
=0; i
<a
->length
; i
++) coeff
[i
+ (length
-1)/2 - (a
->length
-1)/2]+= a
->coeff
[i
];
3403 for (i
=0; i
<b
->length
; i
++) coeff
[i
+ (length
-1)/2 - (b
->length
-1)/2]-= b
->coeff
[i
];
3408 /* shift left / or right if "shift" is negative */
3409 static SwsVector
*sws_getShiftedVec(SwsVector
*a
, int shift
){
3410 int length
= a
->length
+ FFABS(shift
)*2;
3411 double *coeff
= av_malloc(length
*sizeof(double));
3413 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3416 vec
->length
= length
;
3418 for (i
=0; i
<length
; i
++) coeff
[i
]= 0.0;
3420 for (i
=0; i
<a
->length
; i
++)
3422 coeff
[i
+ (length
-1)/2 - (a
->length
-1)/2 - shift
]= a
->coeff
[i
];
3428 void sws_shiftVec(SwsVector
*a
, int shift
){
3429 SwsVector
*shifted
= sws_getShiftedVec(a
, shift
);
3431 a
->coeff
= shifted
->coeff
;
3432 a
->length
= shifted
->length
;
3436 void sws_addVec(SwsVector
*a
, SwsVector
*b
){
3437 SwsVector
*sum
= sws_sumVec(a
, b
);
3439 a
->coeff
= sum
->coeff
;
3440 a
->length
= sum
->length
;
3444 void sws_subVec(SwsVector
*a
, SwsVector
*b
){
3445 SwsVector
*diff
= sws_diffVec(a
, b
);
3447 a
->coeff
= diff
->coeff
;
3448 a
->length
= diff
->length
;
3452 void sws_convVec(SwsVector
*a
, SwsVector
*b
){
3453 SwsVector
*conv
= sws_getConvVec(a
, b
);
3455 a
->coeff
= conv
->coeff
;
3456 a
->length
= conv
->length
;
3460 SwsVector
*sws_cloneVec(SwsVector
*a
){
3461 double *coeff
= av_malloc(a
->length
*sizeof(double));
3463 SwsVector
*vec
= av_malloc(sizeof(SwsVector
));
3466 vec
->length
= a
->length
;
3468 for (i
=0; i
<a
->length
; i
++) coeff
[i
]= a
->coeff
[i
];
3473 void sws_printVec2(SwsVector
*a
, AVClass
*log_ctx
, int log_level
){
3479 for (i
=0; i
<a
->length
; i
++)
3480 if (a
->coeff
[i
]>max
) max
= a
->coeff
[i
];
3482 for (i
=0; i
<a
->length
; i
++)
3483 if (a
->coeff
[i
]<min
) min
= a
->coeff
[i
];
3487 for (i
=0; i
<a
->length
; i
++)
3489 int x
= (int)((a
->coeff
[i
]-min
)*60.0/range
+0.5);
3490 av_log(log_ctx
, log_level
, "%1.3f ", a
->coeff
[i
]);
3491 for (;x
>0; x
--) av_log(log_ctx
, log_level
, " ");
3492 av_log(log_ctx
, log_level
, "|\n");
3496 #if LIBSWSCALE_VERSION_MAJOR < 1
3497 void sws_printVec(SwsVector
*a
){
3498 sws_printVec2(a
, NULL
, AV_LOG_DEBUG
);
3502 void sws_freeVec(SwsVector
*a
){
3504 av_freep(&a
->coeff
);
3509 void sws_freeFilter(SwsFilter
*filter
){
3510 if (!filter
) return;
3512 if (filter
->lumH
) sws_freeVec(filter
->lumH
);
3513 if (filter
->lumV
) sws_freeVec(filter
->lumV
);
3514 if (filter
->chrH
) sws_freeVec(filter
->chrH
);
3515 if (filter
->chrV
) sws_freeVec(filter
->chrV
);
3520 void sws_freeContext(SwsContext
*c
){
3526 for (i
=0; i
<c
->vLumBufSize
; i
++)
3527 av_freep(&c
->lumPixBuf
[i
]);
3528 av_freep(&c
->lumPixBuf
);
3533 for (i
=0; i
<c
->vChrBufSize
; i
++)
3534 av_freep(&c
->chrPixBuf
[i
]);
3535 av_freep(&c
->chrPixBuf
);
3538 if (CONFIG_SWSCALE_ALPHA
&& c
->alpPixBuf
){
3539 for (i
=0; i
<c
->vLumBufSize
; i
++)
3540 av_freep(&c
->alpPixBuf
[i
]);
3541 av_freep(&c
->alpPixBuf
);
3544 av_freep(&c
->vLumFilter
);
3545 av_freep(&c
->vChrFilter
);
3546 av_freep(&c
->hLumFilter
);
3547 av_freep(&c
->hChrFilter
);
3549 av_freep(&c
->vYCoeffsBank
);
3550 av_freep(&c
->vCCoeffsBank
);
3553 av_freep(&c
->vLumFilterPos
);
3554 av_freep(&c
->vChrFilterPos
);
3555 av_freep(&c
->hLumFilterPos
);
3556 av_freep(&c
->hChrFilterPos
);
3558 #if ARCH_X86 && CONFIG_GPL
3559 #ifdef MAP_ANONYMOUS
3560 if (c
->funnyYCode
) munmap(c
->funnyYCode
, MAX_FUNNY_CODE_SIZE
);
3561 if (c
->funnyUVCode
) munmap(c
->funnyUVCode
, MAX_FUNNY_CODE_SIZE
);
3562 #elif HAVE_VIRTUALALLOC
3563 if (c
->funnyYCode
) VirtualFree(c
->funnyYCode
, MAX_FUNNY_CODE_SIZE
, MEM_RELEASE
);
3564 if (c
->funnyUVCode
) VirtualFree(c
->funnyUVCode
, MAX_FUNNY_CODE_SIZE
, MEM_RELEASE
);
3566 av_free(c
->funnyYCode
);
3567 av_free(c
->funnyUVCode
);
3570 c
->funnyUVCode
=NULL
;
3571 #endif /* ARCH_X86 && CONFIG_GPL */
3573 av_freep(&c
->lumMmx2Filter
);
3574 av_freep(&c
->chrMmx2Filter
);
3575 av_freep(&c
->lumMmx2FilterPos
);
3576 av_freep(&c
->chrMmx2FilterPos
);
3577 av_freep(&c
->yuvTable
);
3582 struct SwsContext
*sws_getCachedContext(struct SwsContext
*context
,
3583 int srcW
, int srcH
, enum PixelFormat srcFormat
,
3584 int dstW
, int dstH
, enum PixelFormat dstFormat
, int flags
,
3585 SwsFilter
*srcFilter
, SwsFilter
*dstFilter
, const double *param
)
3587 static const double default_param
[2] = {SWS_PARAM_DEFAULT
, SWS_PARAM_DEFAULT
};
3590 param
= default_param
;
3593 if (context
->srcW
!= srcW
|| context
->srcH
!= srcH
||
3594 context
->srcFormat
!= srcFormat
||
3595 context
->dstW
!= dstW
|| context
->dstH
!= dstH
||
3596 context
->dstFormat
!= dstFormat
|| context
->flags
!= flags
||
3597 context
->param
[0] != param
[0] || context
->param
[1] != param
[1])
3599 sws_freeContext(context
);
3604 return sws_getContext(srcW
, srcH
, srcFormat
,
3605 dstW
, dstH
, dstFormat
, flags
,
3606 srcFilter
, dstFilter
, param
);