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Patch by Stefan Huehner / stefan % huehner ! org \
[mplayer/glamo.git] / postproc / swscale.c
blobe4537f7bf2293c709ed5a6adcc0a044126a85033
1 /*
2 Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 /*
20 supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8/Y800, YVU9/IF09
21 supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
22 {BGR,RGB}{1,4,8,15,16} support dithering
23
24 unscaled special converters (YV12=I420=IYUV, Y800=Y8)
25 YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
26 x -> x
27 YUV9 -> YV12
28 YUV9/YV12 -> Y800
29 Y800 -> YUV9/YV12
30 BGR24 -> BGR32 & RGB24 -> RGB32
31 BGR32 -> BGR24 & RGB32 -> RGB24
32 BGR15 -> BGR16
33 */
34
35 /*
36 tested special converters (most are tested actually but i didnt write it down ...)
37 YV12 -> BGR16
38 YV12 -> YV12
39 BGR15 -> BGR16
40 BGR16 -> BGR16
41 YVU9 -> YV12
42
43 untested special converters
44 YV12/I420 -> BGR15/BGR24/BGR32 (its the yuv2rgb stuff, so it should be ok)
45 YV12/I420 -> YV12/I420
46 YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
47 BGR24 -> BGR32 & RGB24 -> RGB32
48 BGR32 -> BGR24 & RGB32 -> RGB24
49 BGR24 -> YV12
50 */
51
52 #include <inttypes.h>
53 #include <string.h>
54 #include <math.h>
55 #include <stdio.h>
56 #include <unistd.h>
57 #include "config.h"
58 #include "mangle.h"
59 #include <assert.h>
60 #ifdef HAVE_MALLOC_H
61 #include <malloc.h>
62 #else
63 #include <stdlib.h>
64 #endif
65 #ifdef HAVE_SYS_MMAN_H
66 #include <sys/mman.h>
67 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
68 #define MAP_ANONYMOUS MAP_ANON
69 #endif
70 #endif
71 #include "swscale.h"
72 #include "swscale_internal.h"
73 #include "cpudetect.h"
74 #include "bswap.h"
75 #include "libvo/img_format.h"
76 #include "rgb2rgb.h"
77 #include "libvo/fastmemcpy.h"
78
79 #undef MOVNTQ
80 #undef PAVGB
81
82 //#undef HAVE_MMX2
83 //#define HAVE_3DNOW
84 //#undef HAVE_MMX
85 //#undef ARCH_X86
86 //#define WORDS_BIGENDIAN
87 #define DITHER1XBPP
88
89 #define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit
90
91 #define RET 0xC3 //near return opcode for X86
92
93 #ifdef MP_DEBUG
94 #define ASSERT(x) assert(x);
95 #else
96 #define ASSERT(x) ;
97 #endif
98
99 #ifdef M_PI
100 #define PI M_PI
101 #else
102 #define PI 3.14159265358979323846
103 #endif
104
105 //FIXME replace this with something faster
106 #define isPlanarYUV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_YVU9 \
107 || (x)==IMGFMT_NV12 || (x)==IMGFMT_NV21 \
108 || (x)==IMGFMT_444P || (x)==IMGFMT_422P || (x)==IMGFMT_411P)
109 #define isYUV(x) ((x)==IMGFMT_UYVY || (x)==IMGFMT_YUY2 || isPlanarYUV(x))
110 #define isGray(x) ((x)==IMGFMT_Y800)
111 #define isRGB(x) (((x)&IMGFMT_RGB_MASK)==IMGFMT_RGB)
112 #define isBGR(x) (((x)&IMGFMT_BGR_MASK)==IMGFMT_BGR)
113 #define isSupportedIn(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_YUY2 || (x)==IMGFMT_UYVY\
114 || (x)==IMGFMT_BGR32|| (x)==IMGFMT_BGR24|| (x)==IMGFMT_BGR16|| (x)==IMGFMT_BGR15\
115 || (x)==IMGFMT_RGB32|| (x)==IMGFMT_RGB24\
116 || (x)==IMGFMT_Y800 || (x)==IMGFMT_YVU9\
117 || (x)==IMGFMT_444P || (x)==IMGFMT_422P || (x)==IMGFMT_411P)
118 #define isSupportedOut(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_YUY2 || (x)==IMGFMT_UYVY\
119 || (x)==IMGFMT_444P || (x)==IMGFMT_422P || (x)==IMGFMT_411P\
120 || isRGB(x) || isBGR(x)\
121 || (x)==IMGFMT_NV12 || (x)==IMGFMT_NV21\
122 || (x)==IMGFMT_Y800 || (x)==IMGFMT_YVU9)
123 #define isPacked(x) ((x)==IMGFMT_YUY2 || (x)==IMGFMT_UYVY ||isRGB(x) || isBGR(x))
124
125 #define RGB2YUV_SHIFT 16
126 #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
127 #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
128 #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
129 #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
130 #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
131 #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
132 #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
133 #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
134 #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
135
136 extern const int32_t Inverse_Table_6_9[8][4];
137
138 /*
139 NOTES
140 Special versions: fast Y 1:1 scaling (no interpolation in y direction)
141
142 TODO
143 more intelligent missalignment avoidance for the horizontal scaler
144 write special vertical cubic upscale version
145 Optimize C code (yv12 / minmax)
146 add support for packed pixel yuv input & output
147 add support for Y8 output
148 optimize bgr24 & bgr32
149 add BGR4 output support
150 write special BGR->BGR scaler
151 */
152
153 #define ABS(a) ((a) > 0 ? (a) : (-(a)))
154 #define MIN(a,b) ((a) > (b) ? (b) : (a))
155 #define MAX(a,b) ((a) < (b) ? (b) : (a))
156
157 #if defined(ARCH_X86) || defined(ARCH_X86_64)
158 static uint64_t attribute_used __attribute__((aligned(8))) bF8= 0xF8F8F8F8F8F8F8F8LL;
159 static uint64_t attribute_used __attribute__((aligned(8))) bFC= 0xFCFCFCFCFCFCFCFCLL;
160 static uint64_t __attribute__((aligned(8))) w10= 0x0010001000100010LL;
161 static uint64_t attribute_used __attribute__((aligned(8))) w02= 0x0002000200020002LL;
162 static uint64_t attribute_used __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
163 static uint64_t attribute_used __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
164 static uint64_t attribute_used __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
165 static uint64_t attribute_used __attribute__((aligned(8))) bm01010101=0x00FF00FF00FF00FFLL;
166
167 static volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;
168 static volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;
169 static volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;
170 static volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;
171
172 static uint64_t __attribute__((aligned(8))) dither4[2]={
173 0x0103010301030103LL,
174 0x0200020002000200LL,};
175
176 static uint64_t __attribute__((aligned(8))) dither8[2]={
177 0x0602060206020602LL,
178 0x0004000400040004LL,};
179
180 static uint64_t __attribute__((aligned(8))) b16Mask= 0x001F001F001F001FLL;
181 static uint64_t attribute_used __attribute__((aligned(8))) g16Mask= 0x07E007E007E007E0LL;
182 static uint64_t attribute_used __attribute__((aligned(8))) r16Mask= 0xF800F800F800F800LL;
183 static uint64_t __attribute__((aligned(8))) b15Mask= 0x001F001F001F001FLL;
184 static uint64_t attribute_used __attribute__((aligned(8))) g15Mask= 0x03E003E003E003E0LL;
185 static uint64_t attribute_used __attribute__((aligned(8))) r15Mask= 0x7C007C007C007C00LL;
186
187 static uint64_t attribute_used __attribute__((aligned(8))) M24A= 0x00FF0000FF0000FFLL;
188 static uint64_t attribute_used __attribute__((aligned(8))) M24B= 0xFF0000FF0000FF00LL;
189 static uint64_t attribute_used __attribute__((aligned(8))) M24C= 0x0000FF0000FF0000LL;
190
191 #ifdef FAST_BGR2YV12
192 static const uint64_t bgr2YCoeff attribute_used __attribute__((aligned(8))) = 0x000000210041000DULL;
193 static const uint64_t bgr2UCoeff attribute_used __attribute__((aligned(8))) = 0x0000FFEEFFDC0038ULL;
194 static const uint64_t bgr2VCoeff attribute_used __attribute__((aligned(8))) = 0x00000038FFD2FFF8ULL;
195 #else
196 static const uint64_t bgr2YCoeff attribute_used __attribute__((aligned(8))) = 0x000020E540830C8BULL;
197 static const uint64_t bgr2UCoeff attribute_used __attribute__((aligned(8))) = 0x0000ED0FDAC23831ULL;
198 static const uint64_t bgr2VCoeff attribute_used __attribute__((aligned(8))) = 0x00003831D0E6F6EAULL;
199 #endif
200 static const uint64_t bgr2YOffset attribute_used __attribute__((aligned(8))) = 0x1010101010101010ULL;
201 static const uint64_t bgr2UVOffset attribute_used __attribute__((aligned(8)))= 0x8080808080808080ULL;
202 static const uint64_t w1111 attribute_used __attribute__((aligned(8))) = 0x0001000100010001ULL;
203 #endif
204
205 // clipping helper table for C implementations:
206 static unsigned char clip_table[768];
207
208 static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
209
210 extern const uint8_t dither_2x2_4[2][8];
211 extern const uint8_t dither_2x2_8[2][8];
212 extern const uint8_t dither_8x8_32[8][8];
213 extern const uint8_t dither_8x8_73[8][8];
214 extern const uint8_t dither_8x8_220[8][8];
215
216 #if defined(ARCH_X86) || defined(ARCH_X86_64)
217 void in_asm_used_var_warning_killer()
218 {
219 volatile int i= bF8+bFC+w10+
220 bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+
221 M24A+M24B+M24C+w02 + b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0]+bm01010101;
222 if(i) i=0;
223 }
224 #endif
225
226 static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
227 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
228 uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
229 {
230 //FIXME Optimize (just quickly writen not opti..)
231 int i;
232 for(i=0; i<dstW; i++)
233 {
234 int val=1<<18;
235 int j;
236 for(j=0; j<lumFilterSize; j++)
237 val += lumSrc[j][i] * lumFilter[j];
238
239 dest[i]= MIN(MAX(val>>19, 0), 255);
240 }
241
242 if(uDest != NULL)
243 for(i=0; i<chrDstW; i++)
244 {
245 int u=1<<18;
246 int v=1<<18;
247 int j;
248 for(j=0; j<chrFilterSize; j++)
249 {
250 u += chrSrc[j][i] * chrFilter[j];
251 v += chrSrc[j][i + 2048] * chrFilter[j];
252 }
253
254 uDest[i]= MIN(MAX(u>>19, 0), 255);
255 vDest[i]= MIN(MAX(v>>19, 0), 255);
256 }
257 }
258
259 static inline void yuv2nv12XinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
260 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
261 uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
262 {
263 //FIXME Optimize (just quickly writen not opti..)
264 int i;
265 for(i=0; i<dstW; i++)
266 {
267 int val=1<<18;
268 int j;
269 for(j=0; j<lumFilterSize; j++)
270 val += lumSrc[j][i] * lumFilter[j];
271
272 dest[i]= MIN(MAX(val>>19, 0), 255);
273 }
274
275 if(uDest == NULL)
276 return;
277
278 if(dstFormat == IMGFMT_NV12)
279 for(i=0; i<chrDstW; i++)
280 {
281 int u=1<<18;
282 int v=1<<18;
283 int j;
284 for(j=0; j<chrFilterSize; j++)
285 {
286 u += chrSrc[j][i] * chrFilter[j];
287 v += chrSrc[j][i + 2048] * chrFilter[j];
288 }
289
290 uDest[2*i]= MIN(MAX(u>>19, 0), 255);
291 uDest[2*i+1]= MIN(MAX(v>>19, 0), 255);
292 }
293 else
294 for(i=0; i<chrDstW; i++)
295 {
296 int u=1<<18;
297 int v=1<<18;
298 int j;
299 for(j=0; j<chrFilterSize; j++)
300 {
301 u += chrSrc[j][i] * chrFilter[j];
302 v += chrSrc[j][i + 2048] * chrFilter[j];
303 }
304
305 uDest[2*i]= MIN(MAX(v>>19, 0), 255);
306 uDest[2*i+1]= MIN(MAX(u>>19, 0), 255);
307 }
308 }
309
310 #define YSCALE_YUV_2_PACKEDX_C(type) \
311 for(i=0; i<(dstW>>1); i++){\
312 int j;\
313 int Y1=1<<18;\
314 int Y2=1<<18;\
315 int U=1<<18;\
316 int V=1<<18;\
317 type *r, *b, *g;\
318 const int i2= 2*i;\
319 \
320 for(j=0; j<lumFilterSize; j++)\
321 {\
322 Y1 += lumSrc[j][i2] * lumFilter[j];\
323 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
324 }\
325 for(j=0; j<chrFilterSize; j++)\
326 {\
327 U += chrSrc[j][i] * chrFilter[j];\
328 V += chrSrc[j][i+2048] * chrFilter[j];\
329 }\
330 Y1>>=19;\
331 Y2>>=19;\
332 U >>=19;\
333 V >>=19;\
334 if((Y1|Y2|U|V)&256)\
335 {\
336 if(Y1>255) Y1=255;\
337 else if(Y1<0)Y1=0;\
338 if(Y2>255) Y2=255;\
339 else if(Y2<0)Y2=0;\
340 if(U>255) U=255;\
341 else if(U<0) U=0;\
342 if(V>255) V=255;\
343 else if(V<0) V=0;\
344 }
345
346 #define YSCALE_YUV_2_RGBX_C(type) \
347 YSCALE_YUV_2_PACKEDX_C(type)\
348 r = c->table_rV[V];\
349 g = c->table_gU[U] + c->table_gV[V];\
350 b = c->table_bU[U];\
351
352 #define YSCALE_YUV_2_PACKED2_C \
353 for(i=0; i<(dstW>>1); i++){\
354 const int i2= 2*i;\
355 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19;\
356 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19;\
357 int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19;\
358 int V= (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;\
359
360 #define YSCALE_YUV_2_RGB2_C(type) \
361 YSCALE_YUV_2_PACKED2_C\
362 type *r, *b, *g;\
363 r = c->table_rV[V];\
364 g = c->table_gU[U] + c->table_gV[V];\
365 b = c->table_bU[U];\
366
367 #define YSCALE_YUV_2_PACKED1_C \
368 for(i=0; i<(dstW>>1); i++){\
369 const int i2= 2*i;\
370 int Y1= buf0[i2 ]>>7;\
371 int Y2= buf0[i2+1]>>7;\
372 int U= (uvbuf1[i ])>>7;\
373 int V= (uvbuf1[i+2048])>>7;\
374
375 #define YSCALE_YUV_2_RGB1_C(type) \
376 YSCALE_YUV_2_PACKED1_C\
377 type *r, *b, *g;\
378 r = c->table_rV[V];\
379 g = c->table_gU[U] + c->table_gV[V];\
380 b = c->table_bU[U];\
381
382 #define YSCALE_YUV_2_PACKED1B_C \
383 for(i=0; i<(dstW>>1); i++){\
384 const int i2= 2*i;\
385 int Y1= buf0[i2 ]>>7;\
386 int Y2= buf0[i2+1]>>7;\
387 int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
388 int V= (uvbuf0[i+2048] + uvbuf1[i+2048])>>8;\
389
390 #define YSCALE_YUV_2_RGB1B_C(type) \
391 YSCALE_YUV_2_PACKED1B_C\
392 type *r, *b, *g;\
393 r = c->table_rV[V];\
394 g = c->table_gU[U] + c->table_gV[V];\
395 b = c->table_bU[U];\
396
397 #define YSCALE_YUV_2_ANYRGB_C(func, func2)\
398 switch(c->dstFormat)\
399 {\
400 case IMGFMT_BGR32:\
401 case IMGFMT_RGB32:\
402 func(uint32_t)\
403 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
404 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
405 } \
406 break;\
407 case IMGFMT_RGB24:\
408 func(uint8_t)\
409 ((uint8_t*)dest)[0]= r[Y1];\
410 ((uint8_t*)dest)[1]= g[Y1];\
411 ((uint8_t*)dest)[2]= b[Y1];\
412 ((uint8_t*)dest)[3]= r[Y2];\
413 ((uint8_t*)dest)[4]= g[Y2];\
414 ((uint8_t*)dest)[5]= b[Y2];\
415 dest+=6;\
416 }\
417 break;\
418 case IMGFMT_BGR24:\
419 func(uint8_t)\
420 ((uint8_t*)dest)[0]= b[Y1];\
421 ((uint8_t*)dest)[1]= g[Y1];\
422 ((uint8_t*)dest)[2]= r[Y1];\
423 ((uint8_t*)dest)[3]= b[Y2];\
424 ((uint8_t*)dest)[4]= g[Y2];\
425 ((uint8_t*)dest)[5]= r[Y2];\
426 dest+=6;\
427 }\
428 break;\
429 case IMGFMT_RGB16:\
430 case IMGFMT_BGR16:\
431 {\
432 const int dr1= dither_2x2_8[y&1 ][0];\
433 const int dg1= dither_2x2_4[y&1 ][0];\
434 const int db1= dither_2x2_8[(y&1)^1][0];\
435 const int dr2= dither_2x2_8[y&1 ][1];\
436 const int dg2= dither_2x2_4[y&1 ][1];\
437 const int db2= dither_2x2_8[(y&1)^1][1];\
438 func(uint16_t)\
439 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
440 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
441 }\
442 }\
443 break;\
444 case IMGFMT_RGB15:\
445 case IMGFMT_BGR15:\
446 {\
447 const int dr1= dither_2x2_8[y&1 ][0];\
448 const int dg1= dither_2x2_8[y&1 ][1];\
449 const int db1= dither_2x2_8[(y&1)^1][0];\
450 const int dr2= dither_2x2_8[y&1 ][1];\
451 const int dg2= dither_2x2_8[y&1 ][0];\
452 const int db2= dither_2x2_8[(y&1)^1][1];\
453 func(uint16_t)\
454 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
455 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
456 }\
457 }\
458 break;\
459 case IMGFMT_RGB8:\
460 case IMGFMT_BGR8:\
461 {\
462 const uint8_t * const d64= dither_8x8_73[y&7];\
463 const uint8_t * const d32= dither_8x8_32[y&7];\
464 func(uint8_t)\
465 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
466 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
467 }\
468 }\
469 break;\
470 case IMGFMT_RGB4:\
471 case IMGFMT_BGR4:\
472 {\
473 const uint8_t * const d64= dither_8x8_73 [y&7];\
474 const uint8_t * const d128=dither_8x8_220[y&7];\
475 func(uint8_t)\
476 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
477 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
478 }\
479 }\
480 break;\
481 case IMGFMT_RG4B:\
482 case IMGFMT_BG4B:\
483 {\
484 const uint8_t * const d64= dither_8x8_73 [y&7];\
485 const uint8_t * const d128=dither_8x8_220[y&7];\
486 func(uint8_t)\
487 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
488 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
489 }\
490 }\
491 break;\
492 case IMGFMT_RGB1:\
493 case IMGFMT_BGR1:\
494 {\
495 const uint8_t * const d128=dither_8x8_220[y&7];\
496 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
497 for(i=0; i<dstW-7; i+=8){\
498 int acc;\
499 acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
500 acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
501 acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
502 acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
503 acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
504 acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
505 acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
506 acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
507 ((uint8_t*)dest)[0]= acc;\
508 dest++;\
509 }\
510 \
511 /*\
512 ((uint8_t*)dest)-= dstW>>4;\
513 {\
514 int acc=0;\
515 int left=0;\
516 static int top[1024];\
517 static int last_new[1024][1024];\
518 static int last_in3[1024][1024];\
519 static int drift[1024][1024];\
520 int topLeft=0;\
521 int shift=0;\
522 int count=0;\
523 const uint8_t * const d128=dither_8x8_220[y&7];\
524 int error_new=0;\
525 int error_in3=0;\
526 int f=0;\
527 \
528 for(i=dstW>>1; i<dstW; i++){\
529 int in= ((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19);\
530 int in2 = (76309 * (in - 16) + 32768) >> 16;\
531 int in3 = (in2 < 0) ? 0 : ((in2 > 255) ? 255 : in2);\
532 int old= (left*7 + topLeft + top[i]*5 + top[i+1]*3)/20 + in3\
533 + (last_new[y][i] - in3)*f/256;\
534 int new= old> 128 ? 255 : 0;\
535 \
536 error_new+= ABS(last_new[y][i] - new);\
537 error_in3+= ABS(last_in3[y][i] - in3);\
538 f= error_new - error_in3*4;\
539 if(f<0) f=0;\
540 if(f>256) f=256;\
541 \
542 topLeft= top[i];\
543 left= top[i]= old - new;\
544 last_new[y][i]= new;\
545 last_in3[y][i]= in3;\
546 \
547 acc+= acc + (new&1);\
548 if((i&7)==6){\
549 ((uint8_t*)dest)[0]= acc;\
550 ((uint8_t*)dest)++;\
551 }\
552 }\
553 }\
554 */\
555 }\
556 break;\
557 case IMGFMT_YUY2:\
558 func2\
559 ((uint8_t*)dest)[2*i2+0]= Y1;\
560 ((uint8_t*)dest)[2*i2+1]= U;\
561 ((uint8_t*)dest)[2*i2+2]= Y2;\
562 ((uint8_t*)dest)[2*i2+3]= V;\
563 } \
564 break;\
565 case IMGFMT_UYVY:\
566 func2\
567 ((uint8_t*)dest)[2*i2+0]= U;\
568 ((uint8_t*)dest)[2*i2+1]= Y1;\
569 ((uint8_t*)dest)[2*i2+2]= V;\
570 ((uint8_t*)dest)[2*i2+3]= Y2;\
571 } \
572 break;\
573 }\
574
575
576 static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
577 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
578 uint8_t *dest, int dstW, int y)
579 {
580 int i;
581 switch(c->dstFormat)
582 {
583 case IMGFMT_RGB32:
584 case IMGFMT_BGR32:
585 YSCALE_YUV_2_RGBX_C(uint32_t)
586 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];
587 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];
588 }
589 break;
590 case IMGFMT_RGB24:
591 YSCALE_YUV_2_RGBX_C(uint8_t)
592 ((uint8_t*)dest)[0]= r[Y1];
593 ((uint8_t*)dest)[1]= g[Y1];
594 ((uint8_t*)dest)[2]= b[Y1];
595 ((uint8_t*)dest)[3]= r[Y2];
596 ((uint8_t*)dest)[4]= g[Y2];
597 ((uint8_t*)dest)[5]= b[Y2];
598 dest+=6;
599 }
600 break;
601 case IMGFMT_BGR24:
602 YSCALE_YUV_2_RGBX_C(uint8_t)
603 ((uint8_t*)dest)[0]= b[Y1];
604 ((uint8_t*)dest)[1]= g[Y1];
605 ((uint8_t*)dest)[2]= r[Y1];
606 ((uint8_t*)dest)[3]= b[Y2];
607 ((uint8_t*)dest)[4]= g[Y2];
608 ((uint8_t*)dest)[5]= r[Y2];
609 dest+=6;
610 }
611 break;
612 case IMGFMT_RGB16:
613 case IMGFMT_BGR16:
614 {
615 const int dr1= dither_2x2_8[y&1 ][0];
616 const int dg1= dither_2x2_4[y&1 ][0];
617 const int db1= dither_2x2_8[(y&1)^1][0];
618 const int dr2= dither_2x2_8[y&1 ][1];
619 const int dg2= dither_2x2_4[y&1 ][1];
620 const int db2= dither_2x2_8[(y&1)^1][1];
621 YSCALE_YUV_2_RGBX_C(uint16_t)
622 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
623 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
624 }
625 }
626 break;
627 case IMGFMT_RGB15:
628 case IMGFMT_BGR15:
629 {
630 const int dr1= dither_2x2_8[y&1 ][0];
631 const int dg1= dither_2x2_8[y&1 ][1];
632 const int db1= dither_2x2_8[(y&1)^1][0];
633 const int dr2= dither_2x2_8[y&1 ][1];
634 const int dg2= dither_2x2_8[y&1 ][0];
635 const int db2= dither_2x2_8[(y&1)^1][1];
636 YSCALE_YUV_2_RGBX_C(uint16_t)
637 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
638 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
639 }
640 }
641 break;
642 case IMGFMT_RGB8:
643 case IMGFMT_BGR8:
644 {
645 const uint8_t * const d64= dither_8x8_73[y&7];
646 const uint8_t * const d32= dither_8x8_32[y&7];
647 YSCALE_YUV_2_RGBX_C(uint8_t)
648 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];
649 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];
650 }
651 }
652 break;
653 case IMGFMT_RGB4:
654 case IMGFMT_BGR4:
655 {
656 const uint8_t * const d64= dither_8x8_73 [y&7];
657 const uint8_t * const d128=dither_8x8_220[y&7];
658 YSCALE_YUV_2_RGBX_C(uint8_t)
659 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]
660 +((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);
661 }
662 }
663 break;
664 case IMGFMT_RG4B:
665 case IMGFMT_BG4B:
666 {
667 const uint8_t * const d64= dither_8x8_73 [y&7];
668 const uint8_t * const d128=dither_8x8_220[y&7];
669 YSCALE_YUV_2_RGBX_C(uint8_t)
670 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];
671 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];
672 }
673 }
674 break;
675 case IMGFMT_RGB1:
676 case IMGFMT_BGR1:
677 {
678 const uint8_t * const d128=dither_8x8_220[y&7];
679 uint8_t *g= c->table_gU[128] + c->table_gV[128];
680 int acc=0;
681 for(i=0; i<dstW-1; i+=2){
682 int j;
683 int Y1=1<<18;
684 int Y2=1<<18;
685
686 for(j=0; j<lumFilterSize; j++)
687 {
688 Y1 += lumSrc[j][i] * lumFilter[j];
689 Y2 += lumSrc[j][i+1] * lumFilter[j];
690 }
691 Y1>>=19;
692 Y2>>=19;
693 if((Y1|Y2)&256)
694 {
695 if(Y1>255) Y1=255;
696 else if(Y1<0)Y1=0;
697 if(Y2>255) Y2=255;
698 else if(Y2<0)Y2=0;
699 }
700 acc+= acc + g[Y1+d128[(i+0)&7]];
701 acc+= acc + g[Y2+d128[(i+1)&7]];
702 if((i&7)==6){
703 ((uint8_t*)dest)[0]= acc;
704 dest++;
705 }
706 }
707 }
708 break;
709 case IMGFMT_YUY2:
710 YSCALE_YUV_2_PACKEDX_C(void)
711 ((uint8_t*)dest)[2*i2+0]= Y1;
712 ((uint8_t*)dest)[2*i2+1]= U;
713 ((uint8_t*)dest)[2*i2+2]= Y2;
714 ((uint8_t*)dest)[2*i2+3]= V;
715 }
716 break;
717 case IMGFMT_UYVY:
718 YSCALE_YUV_2_PACKEDX_C(void)
719 ((uint8_t*)dest)[2*i2+0]= U;
720 ((uint8_t*)dest)[2*i2+1]= Y1;
721 ((uint8_t*)dest)[2*i2+2]= V;
722 ((uint8_t*)dest)[2*i2+3]= Y2;
723 }
724 break;
725 }
726 }
727
728
729 //Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
730 //Plain C versions
731 #if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT)
732 #define COMPILE_C
733 #endif
734
735 #ifdef ARCH_POWERPC
736 #if defined (HAVE_ALTIVEC) || defined (RUNTIME_CPUDETECT)
737 #define COMPILE_ALTIVEC
738 #endif //HAVE_ALTIVEC
739 #endif //ARCH_POWERPC
740
741 #if defined(ARCH_X86) || defined(ARCH_X86_64)
742
743 #if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
744 #define COMPILE_MMX
745 #endif
746
747 #if defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)
748 #define COMPILE_MMX2
749 #endif
750
751 #if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
752 #define COMPILE_3DNOW
753 #endif
754 #endif //ARCH_X86 || ARCH_X86_64
755
756 #undef HAVE_MMX
757 #undef HAVE_MMX2
758 #undef HAVE_3DNOW
759
760 #ifdef COMPILE_C
761 #undef HAVE_MMX
762 #undef HAVE_MMX2
763 #undef HAVE_3DNOW
764 #undef HAVE_ALTIVEC
765 #define RENAME(a) a ## _C
766 #include "swscale_template.c"
767 #endif
768
769 #ifdef ARCH_POWERPC
770 #ifdef COMPILE_ALTIVEC
771 #undef RENAME
772 #define HAVE_ALTIVEC
773 #define RENAME(a) a ## _altivec
774 #include "swscale_template.c"
775 #endif
776 #endif //ARCH_POWERPC
777
778 #if defined(ARCH_X86) || defined(ARCH_X86_64)
779
780 //X86 versions
781 /*
782 #undef RENAME
783 #undef HAVE_MMX
784 #undef HAVE_MMX2
785 #undef HAVE_3DNOW
786 #define ARCH_X86
787 #define RENAME(a) a ## _X86
788 #include "swscale_template.c"
789 */
790 //MMX versions
791 #ifdef COMPILE_MMX
792 #undef RENAME
793 #define HAVE_MMX
794 #undef HAVE_MMX2
795 #undef HAVE_3DNOW
796 #define RENAME(a) a ## _MMX
797 #include "swscale_template.c"
798 #endif
799
800 //MMX2 versions
801 #ifdef COMPILE_MMX2
802 #undef RENAME
803 #define HAVE_MMX
804 #define HAVE_MMX2
805 #undef HAVE_3DNOW
806 #define RENAME(a) a ## _MMX2
807 #include "swscale_template.c"
808 #endif
809
810 //3DNOW versions
811 #ifdef COMPILE_3DNOW
812 #undef RENAME
813 #define HAVE_MMX
814 #undef HAVE_MMX2
815 #define HAVE_3DNOW
816 #define RENAME(a) a ## _3DNow
817 #include "swscale_template.c"
818 #endif
819
820 #endif //ARCH_X86 || ARCH_X86_64
821
822 // minor note: the HAVE_xyz is messed up after that line so don't use it
823
824 static double getSplineCoeff(double a, double b, double c, double d, double dist)
825 {
826 // printf("%f %f %f %f %f\n", a,b,c,d,dist);
827 if(dist<=1.0) return ((d*dist + c)*dist + b)*dist +a;
828 else return getSplineCoeff( 0.0,
829 b+ 2.0*c + 3.0*d,
830 c + 3.0*d,
831 -b- 3.0*c - 6.0*d,
832 dist-1.0);
833 }
834
835 static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
836 int srcW, int dstW, int filterAlign, int one, int flags,
837 SwsVector *srcFilter, SwsVector *dstFilter, double param[2])
838 {
839 int i;
840 int filterSize;
841 int filter2Size;
842 int minFilterSize;
843 double *filter=NULL;
844 double *filter2=NULL;
845 #if defined(ARCH_X86) || defined(ARCH_X86_64)
846 if(flags & SWS_CPU_CAPS_MMX)
847 asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
848 #endif
849
850 // Note the +1 is for the MMXscaler which reads over the end
851 *filterPos = (int16_t*)memalign(8, (dstW+1)*sizeof(int16_t));
852
853 if(ABS(xInc - 0x10000) <10) // unscaled
854 {
855 int i;
856 filterSize= 1;
857 filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
858 for(i=0; i<dstW*filterSize; i++) filter[i]=0;
859
860 for(i=0; i<dstW; i++)
861 {
862 filter[i*filterSize]=1;
863 (*filterPos)[i]=i;
864 }
865
866 }
867 else if(flags&SWS_POINT) // lame looking point sampling mode
868 {
869 int i;
870 int xDstInSrc;
871 filterSize= 1;
872 filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
873
874 xDstInSrc= xInc/2 - 0x8000;
875 for(i=0; i<dstW; i++)
876 {
877 int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
878
879 (*filterPos)[i]= xx;
880 filter[i]= 1.0;
881 xDstInSrc+= xInc;
882 }
883 }
884 else if((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) // bilinear upscale
885 {
886 int i;
887 int xDstInSrc;
888 if (flags&SWS_BICUBIC) filterSize= 4;
889 else if(flags&SWS_X ) filterSize= 4;
890 else filterSize= 2; // SWS_BILINEAR / SWS_AREA
891 filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
892
893 xDstInSrc= xInc/2 - 0x8000;
894 for(i=0; i<dstW; i++)
895 {
896 int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
897 int j;
898
899 (*filterPos)[i]= xx;
900 //Bilinear upscale / linear interpolate / Area averaging
901 for(j=0; j<filterSize; j++)
902 {
903 double d= ABS((xx<<16) - xDstInSrc)/(double)(1<<16);
904 double coeff= 1.0 - d;
905 if(coeff<0) coeff=0;
906 filter[i*filterSize + j]= coeff;
907 xx++;
908 }
909 xDstInSrc+= xInc;
910 }
911 }
912 else
913 {
914 double xDstInSrc;
915 double sizeFactor, filterSizeInSrc;
916 const double xInc1= (double)xInc / (double)(1<<16);
917
918 if (flags&SWS_BICUBIC) sizeFactor= 4.0;
919 else if(flags&SWS_X) sizeFactor= 8.0;
920 else if(flags&SWS_AREA) sizeFactor= 1.0; //downscale only, for upscale it is bilinear
921 else if(flags&SWS_GAUSS) sizeFactor= 8.0; // infinite ;)
922 else if(flags&SWS_LANCZOS) sizeFactor= param[0] != SWS_PARAM_DEFAULT ? 2.0*param[0] : 6.0;
923 else if(flags&SWS_SINC) sizeFactor= 20.0; // infinite ;)
924 else if(flags&SWS_SPLINE) sizeFactor= 20.0; // infinite ;)
925 else if(flags&SWS_BILINEAR) sizeFactor= 2.0;
926 else {
927 sizeFactor= 0.0; //GCC warning killer
928 ASSERT(0)
929 }
930
931 if(xInc1 <= 1.0) filterSizeInSrc= sizeFactor; // upscale
932 else filterSizeInSrc= sizeFactor*srcW / (double)dstW;
933
934 filterSize= (int)ceil(1 + filterSizeInSrc); // will be reduced later if possible
935 if(filterSize > srcW-2) filterSize=srcW-2;
936
937 filter= (double*)memalign(16, dstW*sizeof(double)*filterSize);
938
939 xDstInSrc= xInc1 / 2.0 - 0.5;
940 for(i=0; i<dstW; i++)
941 {
942 int xx= (int)(xDstInSrc - (filterSize-1)*0.5 + 0.5);
943 int j;
944 (*filterPos)[i]= xx;
945 for(j=0; j<filterSize; j++)
946 {
947 double d= ABS(xx - xDstInSrc)/filterSizeInSrc*sizeFactor;
948 double coeff;
949 if(flags & SWS_BICUBIC)
950 {
951 double B= param[0] != SWS_PARAM_DEFAULT ? param[0] : 0.0;
952 double C= param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6;
953
954 if(d<1.0)
955 coeff = (12-9*B-6*C)*d*d*d + (-18+12*B+6*C)*d*d + 6-2*B;
956 else if(d<2.0)
957 coeff = (-B-6*C)*d*d*d + (6*B+30*C)*d*d + (-12*B-48*C)*d +8*B+24*C;
958 else
959 coeff=0.0;
960 }
961 /* else if(flags & SWS_X)
962 {
963 double p= param ? param*0.01 : 0.3;
964 coeff = d ? sin(d*PI)/(d*PI) : 1.0;
965 coeff*= pow(2.0, - p*d*d);
966 }*/
967 else if(flags & SWS_X)
968 {
969 double A= param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
970
971 if(d<1.0)
972 coeff = cos(d*PI);
973 else
974 coeff=-1.0;
975 if(coeff<0.0) coeff= -pow(-coeff, A);
976 else coeff= pow( coeff, A);
977 coeff= coeff*0.5 + 0.5;
978 }
979 else if(flags & SWS_AREA)
980 {
981 double srcPixelSize= 1.0/xInc1;
982 if(d + srcPixelSize/2 < 0.5) coeff= 1.0;
983 else if(d - srcPixelSize/2 < 0.5) coeff= (0.5-d)/srcPixelSize + 0.5;
984 else coeff=0.0;
985 }
986 else if(flags & SWS_GAUSS)
987 {
988 double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
989 coeff = pow(2.0, - p*d*d);
990 }
991 else if(flags & SWS_SINC)
992 {
993 coeff = d ? sin(d*PI)/(d*PI) : 1.0;
994 }
995 else if(flags & SWS_LANCZOS)
996 {
997 double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
998 coeff = d ? sin(d*PI)*sin(d*PI/p)/(d*d*PI*PI/p) : 1.0;
999 if(d>p) coeff=0;
1000 }
1001 else if(flags & SWS_BILINEAR)
1002 {
1003 coeff= 1.0 - d;
1004 if(coeff<0) coeff=0;
1005 }
1006 else if(flags & SWS_SPLINE)
1007 {
1008 double p=-2.196152422706632;
1009 coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, d);
1010 }
1011 else {
1012 coeff= 0.0; //GCC warning killer
1013 ASSERT(0)
1014 }
1015
1016 filter[i*filterSize + j]= coeff;
1017 xx++;
1018 }
1019 xDstInSrc+= xInc1;
1020 }
1021 }
1022
1023 /* apply src & dst Filter to filter -> filter2
1024 free(filter);
1025 */
1026 ASSERT(filterSize>0)
1027 filter2Size= filterSize;
1028 if(srcFilter) filter2Size+= srcFilter->length - 1;
1029 if(dstFilter) filter2Size+= dstFilter->length - 1;
1030 ASSERT(filter2Size>0)
1031 filter2= (double*)memalign(8, filter2Size*dstW*sizeof(double));
1032
1033 for(i=0; i<dstW; i++)
1034 {
1035 int j;
1036 SwsVector scaleFilter;
1037 SwsVector *outVec;
1038
1039 scaleFilter.coeff= filter + i*filterSize;
1040 scaleFilter.length= filterSize;
1041
1042 if(srcFilter) outVec= sws_getConvVec(srcFilter, &scaleFilter);
1043 else outVec= &scaleFilter;
1044
1045 ASSERT(outVec->length == filter2Size)
1046 //FIXME dstFilter
1047
1048 for(j=0; j<outVec->length; j++)
1049 {
1050 filter2[i*filter2Size + j]= outVec->coeff[j];
1051 }
1052
1053 (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
1054
1055 if(outVec != &scaleFilter) sws_freeVec(outVec);
1056 }
1057 free(filter); filter=NULL;
1058
1059 /* try to reduce the filter-size (step1 find size and shift left) */
1060 // Assume its near normalized (*0.5 or *2.0 is ok but * 0.001 is not)
1061 minFilterSize= 0;
1062 for(i=dstW-1; i>=0; i--)
1063 {
1064 int min= filter2Size;
1065 int j;
1066 double cutOff=0.0;
1067
1068 /* get rid off near zero elements on the left by shifting left */
1069 for(j=0; j<filter2Size; j++)
1070 {
1071 int k;
1072 cutOff += ABS(filter2[i*filter2Size]);
1073
1074 if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
1075
1076 /* preserve Monotonicity because the core can't handle the filter otherwise */
1077 if(i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
1078
1079 // Move filter coeffs left
1080 for(k=1; k<filter2Size; k++)
1081 filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
1082 filter2[i*filter2Size + k - 1]= 0.0;
1083 (*filterPos)[i]++;
1084 }
1085
1086 cutOff=0.0;
1087 /* count near zeros on the right */
1088 for(j=filter2Size-1; j>0; j--)
1089 {
1090 cutOff += ABS(filter2[i*filter2Size + j]);
1091
1092 if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
1093 min--;
1094 }
1095
1096 if(min>minFilterSize) minFilterSize= min;
1097 }
1098
1099 if (flags & SWS_CPU_CAPS_ALTIVEC) {
1100 // we can handle the special case 4,
1101 // so we don't want to go to the full 8
1102 if (minFilterSize < 5)
1103 filterAlign = 4;
1104
1105 // we really don't want to waste our time
1106 // doing useless computation, so fall-back on
1107 // the scalar C code for very small filter.
1108 // vectorizing is worth it only if you have
1109 // decent-sized vector.
1110 if (minFilterSize < 3)
1111 filterAlign = 1;
1112 }
1113
1114 ASSERT(minFilterSize > 0)
1115 filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
1116 ASSERT(filterSize > 0)
1117 filter= (double*)memalign(8, filterSize*dstW*sizeof(double));
1118 *outFilterSize= filterSize;
1119
1120 if(flags&SWS_PRINT_INFO)
1121 MSG_V("SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
1122 /* try to reduce the filter-size (step2 reduce it) */
1123 for(i=0; i<dstW; i++)
1124 {
1125 int j;
1126
1127 for(j=0; j<filterSize; j++)
1128 {
1129 if(j>=filter2Size) filter[i*filterSize + j]= 0.0;
1130 else filter[i*filterSize + j]= filter2[i*filter2Size + j];
1131 }
1132 }
1133 free(filter2); filter2=NULL;
1134
1135
1136 //FIXME try to align filterpos if possible
1137
1138 //fix borders
1139 for(i=0; i<dstW; i++)
1140 {
1141 int j;
1142 if((*filterPos)[i] < 0)
1143 {
1144 // Move filter coeffs left to compensate for filterPos
1145 for(j=1; j<filterSize; j++)
1146 {
1147 int left= MAX(j + (*filterPos)[i], 0);
1148 filter[i*filterSize + left] += filter[i*filterSize + j];
1149 filter[i*filterSize + j]=0;
1150 }
1151 (*filterPos)[i]= 0;
1152 }
1153
1154 if((*filterPos)[i] + filterSize > srcW)
1155 {
1156 int shift= (*filterPos)[i] + filterSize - srcW;
1157 // Move filter coeffs right to compensate for filterPos
1158 for(j=filterSize-2; j>=0; j--)
1159 {
1160 int right= MIN(j + shift, filterSize-1);
1161 filter[i*filterSize +right] += filter[i*filterSize +j];
1162 filter[i*filterSize +j]=0;
1163 }
1164 (*filterPos)[i]= srcW - filterSize;
1165 }
1166 }
1167
1168 // Note the +1 is for the MMXscaler which reads over the end
1169 /* align at 16 for AltiVec (needed by hScale_altivec_real) */
1170 *outFilter= (int16_t*)memalign(16, *outFilterSize*(dstW+1)*sizeof(int16_t));
1171 memset(*outFilter, 0, *outFilterSize*(dstW+1)*sizeof(int16_t));
1172
1173 /* Normalize & Store in outFilter */
1174 for(i=0; i<dstW; i++)
1175 {
1176 int j;
1177 double error=0;
1178 double sum=0;
1179 double scale= one;
1180
1181 for(j=0; j<filterSize; j++)
1182 {
1183 sum+= filter[i*filterSize + j];
1184 }
1185 scale/= sum;
1186 for(j=0; j<*outFilterSize; j++)
1187 {
1188 double v= filter[i*filterSize + j]*scale + error;
1189 int intV= floor(v + 0.5);
1190 (*outFilter)[i*(*outFilterSize) + j]= intV;
1191 error = v - intV;
1192 }
1193 }
1194
1195 (*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
1196 for(i=0; i<*outFilterSize; i++)
1197 {
1198 int j= dstW*(*outFilterSize);
1199 (*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
1200 }
1201
1202 free(filter);
1203 }
1204
1205 #if defined(ARCH_X86) || defined(ARCH_X86_64)
1206 static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode, int16_t *filter, int32_t *filterPos, int numSplits)
1207 {
1208 uint8_t *fragmentA;
1209 long imm8OfPShufW1A;
1210 long imm8OfPShufW2A;
1211 long fragmentLengthA;
1212 uint8_t *fragmentB;
1213 long imm8OfPShufW1B;
1214 long imm8OfPShufW2B;
1215 long fragmentLengthB;
1216 int fragmentPos;
1217
1218 int xpos, i;
1219
1220 // create an optimized horizontal scaling routine
1221
1222 //code fragment
1223
1224 asm volatile(
1225 "jmp 9f \n\t"
1226 // Begin
1227 "0: \n\t"
1228 "movq (%%"REG_d", %%"REG_a"), %%mm3\n\t"
1229 "movd (%%"REG_c", %%"REG_S"), %%mm0\n\t"
1230 "movd 1(%%"REG_c", %%"REG_S"), %%mm1\n\t"
1231 "punpcklbw %%mm7, %%mm1 \n\t"
1232 "punpcklbw %%mm7, %%mm0 \n\t"
1233 "pshufw $0xFF, %%mm1, %%mm1 \n\t"
1234 "1: \n\t"
1235 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1236 "2: \n\t"
1237 "psubw %%mm1, %%mm0 \n\t"
1238 "movl 8(%%"REG_b", %%"REG_a"), %%esi\n\t"
1239 "pmullw %%mm3, %%mm0 \n\t"
1240 "psllw $7, %%mm1 \n\t"
1241 "paddw %%mm1, %%mm0 \n\t"
1242
1243 "movq %%mm0, (%%"REG_D", %%"REG_a")\n\t"
1244
1245 "add $8, %%"REG_a" \n\t"
1246 // End
1247 "9: \n\t"
1248 // "int $3\n\t"
1249 "lea 0b, %0 \n\t"
1250 "lea 1b, %1 \n\t"
1251 "lea 2b, %2 \n\t"
1252 "dec %1 \n\t"
1253 "dec %2 \n\t"
1254 "sub %0, %1 \n\t"
1255 "sub %0, %2 \n\t"
1256 "lea 9b, %3 \n\t"
1257 "sub %0, %3 \n\t"
1258
1259
1260 :"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
1261 "=r" (fragmentLengthA)
1262 );
1263
1264 asm volatile(
1265 "jmp 9f \n\t"
1266 // Begin
1267 "0: \n\t"
1268 "movq (%%"REG_d", %%"REG_a"), %%mm3\n\t"
1269 "movd (%%"REG_c", %%"REG_S"), %%mm0\n\t"
1270 "punpcklbw %%mm7, %%mm0 \n\t"
1271 "pshufw $0xFF, %%mm0, %%mm1 \n\t"
1272 "1: \n\t"
1273 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1274 "2: \n\t"
1275 "psubw %%mm1, %%mm0 \n\t"
1276 "movl 8(%%"REG_b", %%"REG_a"), %%esi\n\t"
1277 "pmullw %%mm3, %%mm0 \n\t"
1278 "psllw $7, %%mm1 \n\t"
1279 "paddw %%mm1, %%mm0 \n\t"
1280
1281 "movq %%mm0, (%%"REG_D", %%"REG_a")\n\t"
1282
1283 "add $8, %%"REG_a" \n\t"
1284 // End
1285 "9: \n\t"
1286 // "int $3\n\t"
1287 "lea 0b, %0 \n\t"
1288 "lea 1b, %1 \n\t"
1289 "lea 2b, %2 \n\t"
1290 "dec %1 \n\t"
1291 "dec %2 \n\t"
1292 "sub %0, %1 \n\t"
1293 "sub %0, %2 \n\t"
1294 "lea 9b, %3 \n\t"
1295 "sub %0, %3 \n\t"
1296
1297
1298 :"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
1299 "=r" (fragmentLengthB)
1300 );
1301
1302 xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
1303 fragmentPos=0;
1304
1305 for(i=0; i<dstW/numSplits; i++)
1306 {
1307 int xx=xpos>>16;
1308
1309 if((i&3) == 0)
1310 {
1311 int a=0;
1312 int b=((xpos+xInc)>>16) - xx;
1313 int c=((xpos+xInc*2)>>16) - xx;
1314 int d=((xpos+xInc*3)>>16) - xx;
1315
1316 filter[i ] = (( xpos & 0xFFFF) ^ 0xFFFF)>>9;
1317 filter[i+1] = (((xpos+xInc ) & 0xFFFF) ^ 0xFFFF)>>9;
1318 filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
1319 filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
1320 filterPos[i/2]= xx;
1321
1322 if(d+1<4)
1323 {
1324 int maxShift= 3-(d+1);
1325 int shift=0;
1326
1327 memcpy(funnyCode + fragmentPos, fragmentB, fragmentLengthB);
1328
1329 funnyCode[fragmentPos + imm8OfPShufW1B]=
1330 (a+1) | ((b+1)<<2) | ((c+1)<<4) | ((d+1)<<6);
1331 funnyCode[fragmentPos + imm8OfPShufW2B]=
1332 a | (b<<2) | (c<<4) | (d<<6);
1333
1334 if(i+3>=dstW) shift=maxShift; //avoid overread
1335 else if((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
1336
1337 if(shift && i>=shift)
1338 {
1339 funnyCode[fragmentPos + imm8OfPShufW1B]+= 0x55*shift;
1340 funnyCode[fragmentPos + imm8OfPShufW2B]+= 0x55*shift;
1341 filterPos[i/2]-=shift;
1342 }
1343
1344 fragmentPos+= fragmentLengthB;
1345 }
1346 else
1347 {
1348 int maxShift= 3-d;
1349 int shift=0;
1350
1351 memcpy(funnyCode + fragmentPos, fragmentA, fragmentLengthA);
1352
1353 funnyCode[fragmentPos + imm8OfPShufW1A]=
1354 funnyCode[fragmentPos + imm8OfPShufW2A]=
1355 a | (b<<2) | (c<<4) | (d<<6);
1356
1357 if(i+4>=dstW) shift=maxShift; //avoid overread
1358 else if((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //partial align
1359
1360 if(shift && i>=shift)
1361 {
1362 funnyCode[fragmentPos + imm8OfPShufW1A]+= 0x55*shift;
1363 funnyCode[fragmentPos + imm8OfPShufW2A]+= 0x55*shift;
1364 filterPos[i/2]-=shift;
1365 }
1366
1367 fragmentPos+= fragmentLengthA;
1368 }
1369
1370 funnyCode[fragmentPos]= RET;
1371 }
1372 xpos+=xInc;
1373 }
1374 filterPos[i/2]= xpos>>16; // needed to jump to the next part
1375 }
1376 #endif // ARCH_X86 || ARCH_X86_64
1377
1378 static void globalInit(void){
1379 // generating tables:
1380 int i;
1381 for(i=0; i<768; i++){
1382 int c= MIN(MAX(i-256, 0), 255);
1383 clip_table[i]=c;
1384 }
1385 }
1386
1387 static SwsFunc getSwsFunc(int flags){
1388
1389 #ifdef RUNTIME_CPUDETECT
1390 #if defined(ARCH_X86) || defined(ARCH_X86_64)
1391 // ordered per speed fasterst first
1392 if(flags & SWS_CPU_CAPS_MMX2)
1393 return swScale_MMX2;
1394 else if(flags & SWS_CPU_CAPS_3DNOW)
1395 return swScale_3DNow;
1396 else if(flags & SWS_CPU_CAPS_MMX)
1397 return swScale_MMX;
1398 else
1399 return swScale_C;
1400
1401 #else
1402 #ifdef ARCH_POWERPC
1403 if(flags & SWS_CPU_CAPS_ALTIVEC)
1404 return swScale_altivec;
1405 else
1406 return swScale_C;
1407 #endif
1408 return swScale_C;
1409 #endif
1410 #else //RUNTIME_CPUDETECT
1411 #ifdef HAVE_MMX2
1412 return swScale_MMX2;
1413 #elif defined (HAVE_3DNOW)
1414 return swScale_3DNow;
1415 #elif defined (HAVE_MMX)
1416 return swScale_MMX;
1417 #elif defined (HAVE_ALTIVEC)
1418 return swScale_altivec;
1419 #else
1420 return swScale_C;
1421 #endif
1422 #endif //!RUNTIME_CPUDETECT
1423 }
1424
1425 static int PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1426 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1427 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1428 /* Copy Y plane */
1429 if(dstStride[0]==srcStride[0] && srcStride[0] > 0)
1430 memcpy(dst, src[0], srcSliceH*dstStride[0]);
1431 else
1432 {
1433 int i;
1434 uint8_t *srcPtr= src[0];
1435 uint8_t *dstPtr= dst;
1436 for(i=0; i<srcSliceH; i++)
1437 {
1438 memcpy(dstPtr, srcPtr, c->srcW);
1439 srcPtr+= srcStride[0];
1440 dstPtr+= dstStride[0];
1441 }
1442 }
1443 dst = dstParam[1] + dstStride[1]*srcSliceY/2;
1444 if (c->dstFormat == IMGFMT_NV12)
1445 interleaveBytes( src[1],src[2],dst,c->srcW/2,srcSliceH/2,srcStride[1],srcStride[2],dstStride[0] );
1446 else
1447 interleaveBytes( src[2],src[1],dst,c->srcW/2,srcSliceH/2,srcStride[2],srcStride[1],dstStride[0] );
1448
1449 return srcSliceH;
1450 }
1451
1452 static int PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1453 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1454 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1455
1456 yv12toyuy2( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
1457
1458 return srcSliceH;
1459 }
1460
1461 static int PlanarToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1462 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1463 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1464
1465 yv12touyvy( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
1466
1467 return srcSliceH;
1468 }
1469
1470 /* {RGB,BGR}{15,16,24,32} -> {RGB,BGR}{15,16,24,32} */
1471 static int rgb2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1472 int srcSliceH, uint8_t* dst[], int dstStride[]){
1473 const int srcFormat= c->srcFormat;
1474 const int dstFormat= c->dstFormat;
1475 const int srcBpp= ((srcFormat&0xFF) + 7)>>3;
1476 const int dstBpp= ((dstFormat&0xFF) + 7)>>3;
1477 const int srcId= (srcFormat&0xFF)>>2; // 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8
1478 const int dstId= (dstFormat&0xFF)>>2;
1479 void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
1480
1481 /* BGR -> BGR */
1482 if( (isBGR(srcFormat) && isBGR(dstFormat))
1483 || (isRGB(srcFormat) && isRGB(dstFormat))){
1484 switch(srcId | (dstId<<4)){
1485 case 0x34: conv= rgb16to15; break;
1486 case 0x36: conv= rgb24to15; break;
1487 case 0x38: conv= rgb32to15; break;
1488 case 0x43: conv= rgb15to16; break;
1489 case 0x46: conv= rgb24to16; break;
1490 case 0x48: conv= rgb32to16; break;
1491 case 0x63: conv= rgb15to24; break;
1492 case 0x64: conv= rgb16to24; break;
1493 case 0x68: conv= rgb32to24; break;
1494 case 0x83: conv= rgb15to32; break;
1495 case 0x84: conv= rgb16to32; break;
1496 case 0x86: conv= rgb24to32; break;
1497 default: MSG_ERR("swScaler: internal error %s -> %s converter\n",
1498 vo_format_name(srcFormat), vo_format_name(dstFormat)); break;
1499 }
1500 }else if( (isBGR(srcFormat) && isRGB(dstFormat))
1501 || (isRGB(srcFormat) && isBGR(dstFormat))){
1502 switch(srcId | (dstId<<4)){
1503 case 0x33: conv= rgb15tobgr15; break;
1504 case 0x34: conv= rgb16tobgr15; break;
1505 case 0x36: conv= rgb24tobgr15; break;
1506 case 0x38: conv= rgb32tobgr15; break;
1507 case 0x43: conv= rgb15tobgr16; break;
1508 case 0x44: conv= rgb16tobgr16; break;
1509 case 0x46: conv= rgb24tobgr16; break;
1510 case 0x48: conv= rgb32tobgr16; break;
1511 case 0x63: conv= rgb15tobgr24; break;
1512 case 0x64: conv= rgb16tobgr24; break;
1513 case 0x66: conv= rgb24tobgr24; break;
1514 case 0x68: conv= rgb32tobgr24; break;
1515 case 0x83: conv= rgb15tobgr32; break;
1516 case 0x84: conv= rgb16tobgr32; break;
1517 case 0x86: conv= rgb24tobgr32; break;
1518 case 0x88: conv= rgb32tobgr32; break;
1519 default: MSG_ERR("swScaler: internal error %s -> %s converter\n",
1520 vo_format_name(srcFormat), vo_format_name(dstFormat)); break;
1521 }
1522 }else{
1523 MSG_ERR("swScaler: internal error %s -> %s converter\n",
1524 vo_format_name(srcFormat), vo_format_name(dstFormat));
1525 }
1526
1527 if(dstStride[0]*srcBpp == srcStride[0]*dstBpp)
1528 conv(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1529 else
1530 {
1531 int i;
1532 uint8_t *srcPtr= src[0];
1533 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1534
1535 for(i=0; i<srcSliceH; i++)
1536 {
1537 conv(srcPtr, dstPtr, c->srcW*srcBpp);
1538 srcPtr+= srcStride[0];
1539 dstPtr+= dstStride[0];
1540 }
1541 }
1542 return srcSliceH;
1543 }
1544
1545 static int bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1546 int srcSliceH, uint8_t* dst[], int dstStride[]){
1547
1548 rgb24toyv12(
1549 src[0],
1550 dst[0]+ srcSliceY *dstStride[0],
1551 dst[1]+(srcSliceY>>1)*dstStride[1],
1552 dst[2]+(srcSliceY>>1)*dstStride[2],
1553 c->srcW, srcSliceH,
1554 dstStride[0], dstStride[1], srcStride[0]);
1555 return srcSliceH;
1556 }
1557
1558 static int yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1559 int srcSliceH, uint8_t* dst[], int dstStride[]){
1560 int i;
1561
1562 /* copy Y */
1563 if(srcStride[0]==dstStride[0] && srcStride[0] > 0)
1564 memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
1565 else{
1566 uint8_t *srcPtr= src[0];
1567 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1568
1569 for(i=0; i<srcSliceH; i++)
1570 {
1571 memcpy(dstPtr, srcPtr, c->srcW);
1572 srcPtr+= srcStride[0];
1573 dstPtr+= dstStride[0];
1574 }
1575 }
1576
1577 if(c->dstFormat==IMGFMT_YV12){
1578 planar2x(src[1], dst[1], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[1]);
1579 planar2x(src[2], dst[2], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[2]);
1580 }else{
1581 planar2x(src[1], dst[2], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[2]);
1582 planar2x(src[2], dst[1], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[1]);
1583 }
1584 return srcSliceH;
1585 }
1586
1587 /**
1588 * bring pointers in YUV order instead of YVU
1589 */
1590 static inline void sws_orderYUV(int format, uint8_t * sortedP[], int sortedStride[], uint8_t * p[], int stride[]){
1591 if(format == IMGFMT_YV12 || format == IMGFMT_YVU9
1592 || format == IMGFMT_444P || format == IMGFMT_422P || format == IMGFMT_411P){
1593 sortedP[0]= p[0];
1594 sortedP[1]= p[2];
1595 sortedP[2]= p[1];
1596 sortedStride[0]= stride[0];
1597 sortedStride[1]= stride[2];
1598 sortedStride[2]= stride[1];
1599 }
1600 else if(isPacked(format) || isGray(format) || format == IMGFMT_Y8)
1601 {
1602 sortedP[0]= p[0];
1603 sortedP[1]=
1604 sortedP[2]= NULL;
1605 sortedStride[0]= stride[0];
1606 sortedStride[1]=
1607 sortedStride[2]= 0;
1608 }
1609 else if(format == IMGFMT_I420 || format == IMGFMT_IYUV)
1610 {
1611 sortedP[0]= p[0];
1612 sortedP[1]= p[1];
1613 sortedP[2]= p[2];
1614 sortedStride[0]= stride[0];
1615 sortedStride[1]= stride[1];
1616 sortedStride[2]= stride[2];
1617 }
1618 else if(format == IMGFMT_NV12 || format == IMGFMT_NV21)
1619 {
1620 sortedP[0]= p[0];
1621 sortedP[1]= p[1];
1622 sortedP[2]= NULL;
1623 sortedStride[0]= stride[0];
1624 sortedStride[1]= stride[1];
1625 sortedStride[2]= 0;
1626 }else{
1627 MSG_ERR("internal error in orderYUV\n");
1628 }
1629 }
1630
1631 /* unscaled copy like stuff (assumes nearly identical formats) */
1632 static int simpleCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1633 int srcSliceH, uint8_t* dst[], int dstStride[]){
1634
1635 if(isPacked(c->srcFormat))
1636 {
1637 if(dstStride[0]==srcStride[0] && srcStride[0] > 0)
1638 memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
1639 else
1640 {
1641 int i;
1642 uint8_t *srcPtr= src[0];
1643 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1644 int length=0;
1645
1646 /* universal length finder */
1647 while(length+c->srcW <= ABS(dstStride[0])
1648 && length+c->srcW <= ABS(srcStride[0])) length+= c->srcW;
1649 ASSERT(length!=0);
1650
1651 for(i=0; i<srcSliceH; i++)
1652 {
1653 memcpy(dstPtr, srcPtr, length);
1654 srcPtr+= srcStride[0];
1655 dstPtr+= dstStride[0];
1656 }
1657 }
1658 }
1659 else
1660 { /* Planar YUV or gray */
1661 int plane;
1662 for(plane=0; plane<3; plane++)
1663 {
1664 int length= plane==0 ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
1665 int y= plane==0 ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
1666 int height= plane==0 ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
1667
1668 if((isGray(c->srcFormat) || isGray(c->dstFormat)) && plane>0)
1669 {
1670 if(!isGray(c->dstFormat))
1671 memset(dst[plane], 128, dstStride[plane]*height);
1672 }
1673 else
1674 {
1675 if(dstStride[plane]==srcStride[plane] && srcStride[plane] > 0)
1676 memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
1677 else
1678 {
1679 int i;
1680 uint8_t *srcPtr= src[plane];
1681 uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
1682 for(i=0; i<height; i++)
1683 {
1684 memcpy(dstPtr, srcPtr, length);
1685 srcPtr+= srcStride[plane];
1686 dstPtr+= dstStride[plane];
1687 }
1688 }
1689 }
1690 }
1691 }
1692 return srcSliceH;
1693 }
1694
1695 static int remove_dup_fourcc(int fourcc)
1696 {
1697 switch(fourcc)
1698 {
1699 case IMGFMT_I420:
1700 case IMGFMT_IYUV: return IMGFMT_YV12;
1701 case IMGFMT_Y8 : return IMGFMT_Y800;
1702 case IMGFMT_IF09: return IMGFMT_YVU9;
1703 default: return fourcc;
1704 }
1705 }
1706
1707 static void getSubSampleFactors(int *h, int *v, int format){
1708 switch(format){
1709 case IMGFMT_UYVY:
1710 case IMGFMT_YUY2:
1711 *h=1;
1712 *v=0;
1713 break;
1714 case IMGFMT_YV12:
1715 case IMGFMT_Y800: //FIXME remove after different subsamplings are fully implemented
1716 case IMGFMT_NV12:
1717 case IMGFMT_NV21:
1718 *h=1;
1719 *v=1;
1720 break;
1721 case IMGFMT_YVU9:
1722 *h=2;
1723 *v=2;
1724 break;
1725 case IMGFMT_444P:
1726 *h=0;
1727 *v=0;
1728 break;
1729 case IMGFMT_422P:
1730 *h=1;
1731 *v=0;
1732 break;
1733 case IMGFMT_411P:
1734 *h=2;
1735 *v=0;
1736 break;
1737 default:
1738 *h=0;
1739 *v=0;
1740 break;
1741 }
1742 }
1743
1744 static uint16_t roundToInt16(int64_t f){
1745 int r= (f + (1<<15))>>16;
1746 if(r<-0x7FFF) return 0x8000;
1747 else if(r> 0x7FFF) return 0x7FFF;
1748 else return r;
1749 }
1750
1751 /**
1752 * @param inv_table the yuv2rgb coeffs, normally Inverse_Table_6_9[x]
1753 * @param fullRange if 1 then the luma range is 0..255 if 0 its 16..235
1754 * @return -1 if not supported
1755 */
1756 int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation){
1757 int64_t crv = inv_table[0];
1758 int64_t cbu = inv_table[1];
1759 int64_t cgu = -inv_table[2];
1760 int64_t cgv = -inv_table[3];
1761 int64_t cy = 1<<16;
1762 int64_t oy = 0;
1763
1764 if(isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
1765 memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
1766 memcpy(c->dstColorspaceTable, table, sizeof(int)*4);
1767
1768 c->brightness= brightness;
1769 c->contrast = contrast;
1770 c->saturation= saturation;
1771 c->srcRange = srcRange;
1772 c->dstRange = dstRange;
1773
1774 c->uOffset= 0x0400040004000400LL;
1775 c->vOffset= 0x0400040004000400LL;
1776
1777 if(!srcRange){
1778 cy= (cy*255) / 219;
1779 oy= 16<<16;
1780 }
1781
1782 cy = (cy *contrast )>>16;
1783 crv= (crv*contrast * saturation)>>32;
1784 cbu= (cbu*contrast * saturation)>>32;
1785 cgu= (cgu*contrast * saturation)>>32;
1786 cgv= (cgv*contrast * saturation)>>32;
1787
1788 oy -= 256*brightness;
1789
1790 c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
1791 c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
1792 c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
1793 c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
1794 c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
1795 c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
1796
1797 yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
1798 //FIXME factorize
1799
1800 #ifdef COMPILE_ALTIVEC
1801 if (c->flags & SWS_CPU_CAPS_ALTIVEC)
1802 yuv2rgb_altivec_init_tables (c, inv_table, brightness, contrast, saturation);
1803 #endif
1804 return 0;
1805 }
1806
1807 /**
1808 * @return -1 if not supported
1809 */
1810 int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation){
1811 if(isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
1812
1813 *inv_table = c->srcColorspaceTable;
1814 *table = c->dstColorspaceTable;
1815 *srcRange = c->srcRange;
1816 *dstRange = c->dstRange;
1817 *brightness= c->brightness;
1818 *contrast = c->contrast;
1819 *saturation= c->saturation;
1820
1821 return 0;
1822 }
1823
1824 SwsContext *sws_getContext(int srcW, int srcH, int origSrcFormat, int dstW, int dstH, int origDstFormat, int flags,
1825 SwsFilter *srcFilter, SwsFilter *dstFilter, double *param){
1826
1827 SwsContext *c;
1828 int i;
1829 int usesVFilter, usesHFilter;
1830 int unscaled, needsDither;
1831 int srcFormat, dstFormat;
1832 SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
1833 #if defined(ARCH_X86) || defined(ARCH_X86_64)
1834 if(flags & SWS_CPU_CAPS_MMX)
1835 asm volatile("emms\n\t"::: "memory");
1836 #endif
1837
1838 #ifndef RUNTIME_CPUDETECT //ensure that the flags match the compiled variant if cpudetect is off
1839 flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC);
1840 #ifdef HAVE_MMX2
1841 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
1842 #elif defined (HAVE_3DNOW)
1843 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
1844 #elif defined (HAVE_MMX)
1845 flags |= SWS_CPU_CAPS_MMX;
1846 #elif defined (HAVE_ALTIVEC)
1847 flags |= SWS_CPU_CAPS_ALTIVEC;
1848 #endif
1849 #endif
1850 if(clip_table[512] != 255) globalInit();
1851 if(rgb15to16 == NULL) sws_rgb2rgb_init(flags);
1852
1853 /* avoid duplicate Formats, so we don't need to check to much */
1854 srcFormat = remove_dup_fourcc(origSrcFormat);
1855 dstFormat = remove_dup_fourcc(origDstFormat);
1856
1857 unscaled = (srcW == dstW && srcH == dstH);
1858 needsDither= (isBGR(dstFormat) || isRGB(dstFormat))
1859 && (dstFormat&0xFF)<24
1860 && ((dstFormat&0xFF)<(srcFormat&0xFF) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
1861
1862 if(!isSupportedIn(srcFormat))
1863 {
1864 MSG_ERR("swScaler: %s is not supported as input format\n", vo_format_name(srcFormat));
1865 return NULL;
1866 }
1867 if(!isSupportedOut(dstFormat))
1868 {
1869 MSG_ERR("swScaler: %s is not supported as output format\n", vo_format_name(dstFormat));
1870 return NULL;
1871 }
1872
1873 /* sanity check */
1874 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
1875 {
1876 MSG_ERR("swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
1877 srcW, srcH, dstW, dstH);
1878 return NULL;
1879 }
1880
1881 if(!dstFilter) dstFilter= &dummyFilter;
1882 if(!srcFilter) srcFilter= &dummyFilter;
1883
1884 c= memalign(64, sizeof(SwsContext));
1885 memset(c, 0, sizeof(SwsContext));
1886
1887 c->srcW= srcW;
1888 c->srcH= srcH;
1889 c->dstW= dstW;
1890 c->dstH= dstH;
1891 c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW;
1892 c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH;
1893 c->flags= flags;
1894 c->dstFormat= dstFormat;
1895 c->srcFormat= srcFormat;
1896 c->origDstFormat= origDstFormat;
1897 c->origSrcFormat= origSrcFormat;
1898 c->vRounder= 4* 0x0001000100010001ULL;
1899
1900 usesHFilter= usesVFilter= 0;
1901 if(dstFilter->lumV!=NULL && dstFilter->lumV->length>1) usesVFilter=1;
1902 if(dstFilter->lumH!=NULL && dstFilter->lumH->length>1) usesHFilter=1;
1903 if(dstFilter->chrV!=NULL && dstFilter->chrV->length>1) usesVFilter=1;
1904 if(dstFilter->chrH!=NULL && dstFilter->chrH->length>1) usesHFilter=1;
1905 if(srcFilter->lumV!=NULL && srcFilter->lumV->length>1) usesVFilter=1;
1906 if(srcFilter->lumH!=NULL && srcFilter->lumH->length>1) usesHFilter=1;
1907 if(srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesVFilter=1;
1908 if(srcFilter->chrH!=NULL && srcFilter->chrH->length>1) usesHFilter=1;
1909
1910 getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
1911 getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
1912
1913 // reuse chroma for 2 pixles rgb/bgr unless user wants full chroma interpolation
1914 if((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
1915
1916 // drop some chroma lines if the user wants it
1917 c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
1918 c->chrSrcVSubSample+= c->vChrDrop;
1919
1920 // drop every 2. pixel for chroma calculation unless user wants full chroma
1921 if((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP))
1922 c->chrSrcHSubSample=1;
1923
1924 if(param){
1925 c->param[0] = param[0];
1926 c->param[1] = param[1];
1927 }else{
1928 c->param[0] =
1929 c->param[1] = SWS_PARAM_DEFAULT;
1930 }
1931
1932 c->chrIntHSubSample= c->chrDstHSubSample;
1933 c->chrIntVSubSample= c->chrSrcVSubSample;
1934
1935 // note the -((-x)>>y) is so that we allways round toward +inf
1936 c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
1937 c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
1938 c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
1939 c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
1940
1941 sws_setColorspaceDetails(c, Inverse_Table_6_9[SWS_CS_DEFAULT], 0, Inverse_Table_6_9[SWS_CS_DEFAULT] /* FIXME*/, 0, 0, 1<<16, 1<<16);
1942
1943 /* unscaled special Cases */
1944 if(unscaled && !usesHFilter && !usesVFilter)
1945 {
1946 /* yv12_to_nv12 */
1947 if(srcFormat == IMGFMT_YV12 && (dstFormat == IMGFMT_NV12 || dstFormat == IMGFMT_NV21))
1948 {
1949 c->swScale= PlanarToNV12Wrapper;
1950 }
1951 /* yuv2bgr */
1952 if((srcFormat==IMGFMT_YV12 || srcFormat==IMGFMT_422P) && (isBGR(dstFormat) || isRGB(dstFormat)))
1953 {
1954 c->swScale= yuv2rgb_get_func_ptr(c);
1955 }
1956
1957 if( srcFormat==IMGFMT_YVU9 && dstFormat==IMGFMT_YV12 )
1958 {
1959 c->swScale= yvu9toyv12Wrapper;
1960 }
1961
1962 /* bgr24toYV12 */
1963 if(srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_YV12)
1964 c->swScale= bgr24toyv12Wrapper;
1965
1966 /* rgb/bgr -> rgb/bgr (no dither needed forms) */
1967 if( (isBGR(srcFormat) || isRGB(srcFormat))
1968 && (isBGR(dstFormat) || isRGB(dstFormat))
1969 && !needsDither)
1970 c->swScale= rgb2rgbWrapper;
1971
1972 /* LQ converters if -sws 0 or -sws 4*/
1973 if(c->flags&(SWS_FAST_BILINEAR|SWS_POINT)){
1974 /* rgb/bgr -> rgb/bgr (dither needed forms) */
1975 if( (isBGR(srcFormat) || isRGB(srcFormat))
1976 && (isBGR(dstFormat) || isRGB(dstFormat))
1977 && needsDither)
1978 c->swScale= rgb2rgbWrapper;
1979
1980 /* yv12_to_yuy2 */
1981 if(srcFormat == IMGFMT_YV12 &&
1982 (dstFormat == IMGFMT_YUY2 || dstFormat == IMGFMT_UYVY))
1983 {
1984 if (dstFormat == IMGFMT_YUY2)
1985 c->swScale= PlanarToYuy2Wrapper;
1986 else
1987 c->swScale= PlanarToUyvyWrapper;
1988 }
1989 }
1990
1991 #ifdef COMPILE_ALTIVEC
1992 if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
1993 ((srcFormat == IMGFMT_YV12 &&
1994 (dstFormat == IMGFMT_YUY2 || dstFormat == IMGFMT_UYVY)))) {
1995 // unscaled YV12 -> packed YUV, we want speed
1996 if (dstFormat == IMGFMT_YUY2)
1997 c->swScale= yv12toyuy2_unscaled_altivec;
1998 else
1999 c->swScale= yv12touyvy_unscaled_altivec;
2000 }
2001 #endif
2002
2003 /* simple copy */
2004 if( srcFormat == dstFormat
2005 || (isPlanarYUV(srcFormat) && isGray(dstFormat))
2006 || (isPlanarYUV(dstFormat) && isGray(srcFormat))
2007 )
2008 {
2009 c->swScale= simpleCopy;
2010 }
2011
2012 if(c->swScale){
2013 if(flags&SWS_PRINT_INFO)
2014 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2015 vo_format_name(srcFormat), vo_format_name(dstFormat));
2016 return c;
2017 }
2018 }
2019
2020 if(flags & SWS_CPU_CAPS_MMX2)
2021 {
2022 c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
2023 if(!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR))
2024 {
2025 if(flags&SWS_PRINT_INFO)
2026 MSG_INFO("SwScaler: output Width is not a multiple of 32 -> no MMX2 scaler\n");
2027 }
2028 if(usesHFilter) c->canMMX2BeUsed=0;
2029 }
2030 else
2031 c->canMMX2BeUsed=0;
2032
2033 c->chrXInc= ((c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
2034 c->chrYInc= ((c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
2035
2036 // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
2037 // but only for the FAST_BILINEAR mode otherwise do correct scaling
2038 // n-2 is the last chrominance sample available
2039 // this is not perfect, but noone shuld notice the difference, the more correct variant
2040 // would be like the vertical one, but that would require some special code for the
2041 // first and last pixel
2042 if(flags&SWS_FAST_BILINEAR)
2043 {
2044 if(c->canMMX2BeUsed)
2045 {
2046 c->lumXInc+= 20;
2047 c->chrXInc+= 20;
2048 }
2049 //we don't use the x86asm scaler if mmx is available
2050 else if(flags & SWS_CPU_CAPS_MMX)
2051 {
2052 c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
2053 c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
2054 }
2055 }
2056
2057 /* precalculate horizontal scaler filter coefficients */
2058 {
2059 const int filterAlign=
2060 (flags & SWS_CPU_CAPS_MMX) ? 4 :
2061 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
2062 1;
2063
2064 initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
2065 srcW , dstW, filterAlign, 1<<14,
2066 (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
2067 srcFilter->lumH, dstFilter->lumH, c->param);
2068 initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
2069 c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
2070 (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
2071 srcFilter->chrH, dstFilter->chrH, c->param);
2072
2073 #if defined(ARCH_X86) || defined(ARCH_X86_64)
2074 // can't downscale !!!
2075 if(c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
2076 {
2077 #define MAX_FUNNY_CODE_SIZE 10000
2078 #ifdef MAP_ANONYMOUS
2079 c->funnyYCode = (uint8_t*)mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
2080 c->funnyUVCode = (uint8_t*)mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
2081 #else
2082 c->funnyYCode = (uint8_t*)memalign(32, MAX_FUNNY_CODE_SIZE);
2083 c->funnyUVCode = (uint8_t*)memalign(32, MAX_FUNNY_CODE_SIZE);
2084 #endif
2085
2086 c->lumMmx2Filter = (int16_t*)memalign(8, (dstW /8+8)*sizeof(int16_t));
2087 c->chrMmx2Filter = (int16_t*)memalign(8, (c->chrDstW /4+8)*sizeof(int16_t));
2088 c->lumMmx2FilterPos= (int32_t*)memalign(8, (dstW /2/8+8)*sizeof(int32_t));
2089 c->chrMmx2FilterPos= (int32_t*)memalign(8, (c->chrDstW/2/4+8)*sizeof(int32_t));
2090
2091 initMMX2HScaler( dstW, c->lumXInc, c->funnyYCode , c->lumMmx2Filter, c->lumMmx2FilterPos, 8);
2092 initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
2093 }
2094 #endif
2095 } // Init Horizontal stuff
2096
2097
2098
2099 /* precalculate vertical scaler filter coefficients */
2100 {
2101 const int filterAlign=
2102 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
2103 1;
2104
2105 initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
2106 srcH , dstH, filterAlign, (1<<12)-4,
2107 (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
2108 srcFilter->lumV, dstFilter->lumV, c->param);
2109 initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
2110 c->chrSrcH, c->chrDstH, filterAlign, (1<<12)-4,
2111 (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
2112 srcFilter->chrV, dstFilter->chrV, c->param);
2113 }
2114
2115 // Calculate Buffer Sizes so that they won't run out while handling these damn slices
2116 c->vLumBufSize= c->vLumFilterSize;
2117 c->vChrBufSize= c->vChrFilterSize;
2118 for(i=0; i<dstH; i++)
2119 {
2120 int chrI= i*c->chrDstH / dstH;
2121 int nextSlice= MAX(c->vLumFilterPos[i ] + c->vLumFilterSize - 1,
2122 ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
2123
2124 nextSlice>>= c->chrSrcVSubSample;
2125 nextSlice<<= c->chrSrcVSubSample;
2126 if(c->vLumFilterPos[i ] + c->vLumBufSize < nextSlice)
2127 c->vLumBufSize= nextSlice - c->vLumFilterPos[i ];
2128 if(c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
2129 c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
2130 }
2131
2132 // allocate pixbufs (we use dynamic allocation because otherwise we would need to
2133 c->lumPixBuf= (int16_t**)memalign(4, c->vLumBufSize*2*sizeof(int16_t*));
2134 c->chrPixBuf= (int16_t**)memalign(4, c->vChrBufSize*2*sizeof(int16_t*));
2135 //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)
2136 /* align at 16 bytes for AltiVec */
2137 for(i=0; i<c->vLumBufSize; i++)
2138 c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= (uint16_t*)memalign(16, 4000);
2139 for(i=0; i<c->vChrBufSize; i++)
2140 c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= (uint16_t*)memalign(16, 8000);
2141
2142 //try to avoid drawing green stuff between the right end and the stride end
2143 for(i=0; i<c->vLumBufSize; i++) memset(c->lumPixBuf[i], 0, 4000);
2144 for(i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, 8000);
2145
2146 ASSERT(c->chrDstH <= dstH)
2147
2148 if(flags&SWS_PRINT_INFO)
2149 {
2150 #ifdef DITHER1XBPP
2151 char *dither= " dithered";
2152 #else
2153 char *dither= "";
2154 #endif
2155 if(flags&SWS_FAST_BILINEAR)
2156 MSG_INFO("\nSwScaler: FAST_BILINEAR scaler, ");
2157 else if(flags&SWS_BILINEAR)
2158 MSG_INFO("\nSwScaler: BILINEAR scaler, ");
2159 else if(flags&SWS_BICUBIC)
2160 MSG_INFO("\nSwScaler: BICUBIC scaler, ");
2161 else if(flags&SWS_X)
2162 MSG_INFO("\nSwScaler: Experimental scaler, ");
2163 else if(flags&SWS_POINT)
2164 MSG_INFO("\nSwScaler: Nearest Neighbor / POINT scaler, ");
2165 else if(flags&SWS_AREA)
2166 MSG_INFO("\nSwScaler: Area Averageing scaler, ");
2167 else if(flags&SWS_BICUBLIN)
2168 MSG_INFO("\nSwScaler: luma BICUBIC / chroma BILINEAR scaler, ");
2169 else if(flags&SWS_GAUSS)
2170 MSG_INFO("\nSwScaler: Gaussian scaler, ");
2171 else if(flags&SWS_SINC)
2172 MSG_INFO("\nSwScaler: Sinc scaler, ");
2173 else if(flags&SWS_LANCZOS)
2174 MSG_INFO("\nSwScaler: Lanczos scaler, ");
2175 else if(flags&SWS_SPLINE)
2176 MSG_INFO("\nSwScaler: Bicubic spline scaler, ");
2177 else
2178 MSG_INFO("\nSwScaler: ehh flags invalid?! ");
2179
2180 if(dstFormat==IMGFMT_BGR15 || dstFormat==IMGFMT_BGR16)
2181 MSG_INFO("from %s to%s %s ",
2182 vo_format_name(srcFormat), dither, vo_format_name(dstFormat));
2183 else
2184 MSG_INFO("from %s to %s ",
2185 vo_format_name(srcFormat), vo_format_name(dstFormat));
2186
2187 if(flags & SWS_CPU_CAPS_MMX2)
2188 MSG_INFO("using MMX2\n");
2189 else if(flags & SWS_CPU_CAPS_3DNOW)
2190 MSG_INFO("using 3DNOW\n");
2191 else if(flags & SWS_CPU_CAPS_MMX)
2192 MSG_INFO("using MMX\n");
2193 else if(flags & SWS_CPU_CAPS_ALTIVEC)
2194 MSG_INFO("using AltiVec\n");
2195 else
2196 MSG_INFO("using C\n");
2197 }
2198
2199 if(flags & SWS_PRINT_INFO)
2200 {
2201 if(flags & SWS_CPU_CAPS_MMX)
2202 {
2203 if(c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
2204 MSG_V("SwScaler: using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
2205 else
2206 {
2207 if(c->hLumFilterSize==4)
2208 MSG_V("SwScaler: using 4-tap MMX scaler for horizontal luminance scaling\n");
2209 else if(c->hLumFilterSize==8)
2210 MSG_V("SwScaler: using 8-tap MMX scaler for horizontal luminance scaling\n");
2211 else
2212 MSG_V("SwScaler: using n-tap MMX scaler for horizontal luminance scaling\n");
2213
2214 if(c->hChrFilterSize==4)
2215 MSG_V("SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling\n");
2216 else if(c->hChrFilterSize==8)
2217 MSG_V("SwScaler: using 8-tap MMX scaler for horizontal chrominance scaling\n");
2218 else
2219 MSG_V("SwScaler: using n-tap MMX scaler for horizontal chrominance scaling\n");
2220 }
2221 }
2222 else
2223 {
2224 #if defined(ARCH_X86) || defined(ARCH_X86_64)
2225 MSG_V("SwScaler: using X86-Asm scaler for horizontal scaling\n");
2226 #else
2227 if(flags & SWS_FAST_BILINEAR)
2228 MSG_V("SwScaler: using FAST_BILINEAR C scaler for horizontal scaling\n");
2229 else
2230 MSG_V("SwScaler: using C scaler for horizontal scaling\n");
2231 #endif
2232 }
2233 if(isPlanarYUV(dstFormat))
2234 {
2235 if(c->vLumFilterSize==1)
2236 MSG_V("SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
2237 else
2238 MSG_V("SwScaler: using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
2239 }
2240 else
2241 {
2242 if(c->vLumFilterSize==1 && c->vChrFilterSize==2)
2243 MSG_V("SwScaler: using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
2244 "SwScaler: 2-tap scaler for vertical chrominance scaling (BGR)\n",(flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
2245 else if(c->vLumFilterSize==2 && c->vChrFilterSize==2)
2246 MSG_V("SwScaler: using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
2247 else
2248 MSG_V("SwScaler: using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
2249 }
2250
2251 if(dstFormat==IMGFMT_BGR24)
2252 MSG_V("SwScaler: using %s YV12->BGR24 Converter\n",
2253 (flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
2254 else if(dstFormat==IMGFMT_BGR32)
2255 MSG_V("SwScaler: using %s YV12->BGR32 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
2256 else if(dstFormat==IMGFMT_BGR16)
2257 MSG_V("SwScaler: using %s YV12->BGR16 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
2258 else if(dstFormat==IMGFMT_BGR15)
2259 MSG_V("SwScaler: using %s YV12->BGR15 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
2260
2261 MSG_V("SwScaler: %dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
2262 }
2263 if(flags & SWS_PRINT_INFO)
2264 {
2265 MSG_DBG2("SwScaler:Lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
2266 c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
2267 MSG_DBG2("SwScaler:Chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
2268 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
2269 }
2270
2271 c->swScale= getSwsFunc(flags);
2272 return c;
2273 }
2274
2275 /**
2276 * swscale warper, so we don't need to export the SwsContext.
2277 * assumes planar YUV to be in YUV order instead of YVU
2278 */
2279 int sws_scale_ordered(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2280 int srcSliceH, uint8_t* dst[], int dstStride[]){
2281 if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
2282 MSG_ERR("swScaler: slices start in the middle!\n");
2283 return 0;
2284 }
2285 if (c->sliceDir == 0) {
2286 if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
2287 }
2288
2289 // copy strides, so they can safely be modified
2290 if (c->sliceDir == 1) {
2291 // slices go from top to bottom
2292 int srcStride2[3]= {srcStride[0], srcStride[1], srcStride[2]};
2293 int dstStride2[3]= {dstStride[0], dstStride[1], dstStride[2]};
2294 return c->swScale(c, src, srcStride2, srcSliceY, srcSliceH, dst, dstStride2);
2295 } else {
2296 // slices go from bottom to top => we flip the image internally
2297 uint8_t* src2[3]= {src[0] + (srcSliceH-1)*srcStride[0],
2298 src[1] + ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1],
2299 src[2] + ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2]
2300 };
2301 uint8_t* dst2[3]= {dst[0] + (c->dstH-1)*dstStride[0],
2302 dst[1] + ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1],
2303 dst[2] + ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2]};
2304 int srcStride2[3]= {-srcStride[0], -srcStride[1], -srcStride[2]};
2305 int dstStride2[3]= {-dstStride[0], -dstStride[1], -dstStride[2]};
2306
2307 return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
2308 }
2309 }
2310
2311 /**
2312 * swscale warper, so we don't need to export the SwsContext
2313 */
2314 int sws_scale(SwsContext *c, uint8_t* srcParam[], int srcStrideParam[], int srcSliceY,
2315 int srcSliceH, uint8_t* dstParam[], int dstStrideParam[]){
2316 int srcStride[3];
2317 int dstStride[3];
2318 uint8_t *src[3];
2319 uint8_t *dst[3];
2320 sws_orderYUV(c->origSrcFormat, src, srcStride, srcParam, srcStrideParam);
2321 sws_orderYUV(c->origDstFormat, dst, dstStride, dstParam, dstStrideParam);
2322 //printf("sws: slice %d %d\n", srcSliceY, srcSliceH);
2323
2324 return c->swScale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
2325 }
2326
2327 SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
2328 float lumaSharpen, float chromaSharpen,
2329 float chromaHShift, float chromaVShift,
2330 int verbose)
2331 {
2332 SwsFilter *filter= malloc(sizeof(SwsFilter));
2333
2334 if(lumaGBlur!=0.0){
2335 filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
2336 filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
2337 }else{
2338 filter->lumH= sws_getIdentityVec();
2339 filter->lumV= sws_getIdentityVec();
2340 }
2341
2342 if(chromaGBlur!=0.0){
2343 filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
2344 filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
2345 }else{
2346 filter->chrH= sws_getIdentityVec();
2347 filter->chrV= sws_getIdentityVec();
2348 }
2349
2350 if(chromaSharpen!=0.0){
2351 SwsVector *id= sws_getIdentityVec();
2352 sws_scaleVec(filter->chrH, -chromaSharpen);
2353 sws_scaleVec(filter->chrV, -chromaSharpen);
2354 sws_addVec(filter->chrH, id);
2355 sws_addVec(filter->chrV, id);
2356 sws_freeVec(id);
2357 }
2358
2359 if(lumaSharpen!=0.0){
2360 SwsVector *id= sws_getIdentityVec();
2361 sws_scaleVec(filter->lumH, -lumaSharpen);
2362 sws_scaleVec(filter->lumV, -lumaSharpen);
2363 sws_addVec(filter->lumH, id);
2364 sws_addVec(filter->lumV, id);
2365 sws_freeVec(id);
2366 }
2367
2368 if(chromaHShift != 0.0)
2369 sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
2370
2371 if(chromaVShift != 0.0)
2372 sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
2373
2374 sws_normalizeVec(filter->chrH, 1.0);
2375 sws_normalizeVec(filter->chrV, 1.0);
2376 sws_normalizeVec(filter->lumH, 1.0);
2377 sws_normalizeVec(filter->lumV, 1.0);
2378
2379 if(verbose) sws_printVec(filter->chrH);
2380 if(verbose) sws_printVec(filter->lumH);
2381
2382 return filter;
2383 }
2384
2385 /**
2386 * returns a normalized gaussian curve used to filter stuff
2387 * quality=3 is high quality, lowwer is lowwer quality
2388 */
2389 SwsVector *sws_getGaussianVec(double variance, double quality){
2390 const int length= (int)(variance*quality + 0.5) | 1;
2391 int i;
2392 double *coeff= memalign(sizeof(double), length*sizeof(double));
2393 double middle= (length-1)*0.5;
2394 SwsVector *vec= malloc(sizeof(SwsVector));
2395
2396 vec->coeff= coeff;
2397 vec->length= length;
2398
2399 for(i=0; i<length; i++)
2400 {
2401 double dist= i-middle;
2402 coeff[i]= exp( -dist*dist/(2*variance*variance) ) / sqrt(2*variance*PI);
2403 }
2404
2405 sws_normalizeVec(vec, 1.0);
2406
2407 return vec;
2408 }
2409
2410 SwsVector *sws_getConstVec(double c, int length){
2411 int i;
2412 double *coeff= memalign(sizeof(double), length*sizeof(double));
2413 SwsVector *vec= malloc(sizeof(SwsVector));
2414
2415 vec->coeff= coeff;
2416 vec->length= length;
2417
2418 for(i=0; i<length; i++)
2419 coeff[i]= c;
2420
2421 return vec;
2422 }
2423
2424
2425 SwsVector *sws_getIdentityVec(void){
2426 return sws_getConstVec(1.0, 1);
2427 }
2428
2429 double sws_dcVec(SwsVector *a){
2430 int i;
2431 double sum=0;
2432
2433 for(i=0; i<a->length; i++)
2434 sum+= a->coeff[i];
2435
2436 return sum;
2437 }
2438
2439 void sws_scaleVec(SwsVector *a, double scalar){
2440 int i;
2441
2442 for(i=0; i<a->length; i++)
2443 a->coeff[i]*= scalar;
2444 }
2445
2446 void sws_normalizeVec(SwsVector *a, double height){
2447 sws_scaleVec(a, height/sws_dcVec(a));
2448 }
2449
2450 static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b){
2451 int length= a->length + b->length - 1;
2452 double *coeff= memalign(sizeof(double), length*sizeof(double));
2453 int i, j;
2454 SwsVector *vec= malloc(sizeof(SwsVector));
2455
2456 vec->coeff= coeff;
2457 vec->length= length;
2458
2459 for(i=0; i<length; i++) coeff[i]= 0.0;
2460
2461 for(i=0; i<a->length; i++)
2462 {
2463 for(j=0; j<b->length; j++)
2464 {
2465 coeff[i+j]+= a->coeff[i]*b->coeff[j];
2466 }
2467 }
2468
2469 return vec;
2470 }
2471
2472 static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b){
2473 int length= MAX(a->length, b->length);
2474 double *coeff= memalign(sizeof(double), length*sizeof(double));
2475 int i;
2476 SwsVector *vec= malloc(sizeof(SwsVector));
2477
2478 vec->coeff= coeff;
2479 vec->length= length;
2480
2481 for(i=0; i<length; i++) coeff[i]= 0.0;
2482
2483 for(i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
2484 for(i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
2485
2486 return vec;
2487 }
2488
2489 static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b){
2490 int length= MAX(a->length, b->length);
2491 double *coeff= memalign(sizeof(double), length*sizeof(double));
2492 int i;
2493 SwsVector *vec= malloc(sizeof(SwsVector));
2494
2495 vec->coeff= coeff;
2496 vec->length= length;
2497
2498 for(i=0; i<length; i++) coeff[i]= 0.0;
2499
2500 for(i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
2501 for(i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
2502
2503 return vec;
2504 }
2505
2506 /* shift left / or right if "shift" is negative */
2507 static SwsVector *sws_getShiftedVec(SwsVector *a, int shift){
2508 int length= a->length + ABS(shift)*2;
2509 double *coeff= memalign(sizeof(double), length*sizeof(double));
2510 int i;
2511 SwsVector *vec= malloc(sizeof(SwsVector));
2512
2513 vec->coeff= coeff;
2514 vec->length= length;
2515
2516 for(i=0; i<length; i++) coeff[i]= 0.0;
2517
2518 for(i=0; i<a->length; i++)
2519 {
2520 coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
2521 }
2522
2523 return vec;
2524 }
2525
2526 void sws_shiftVec(SwsVector *a, int shift){
2527 SwsVector *shifted= sws_getShiftedVec(a, shift);
2528 free(a->coeff);
2529 a->coeff= shifted->coeff;
2530 a->length= shifted->length;
2531 free(shifted);
2532 }
2533
2534 void sws_addVec(SwsVector *a, SwsVector *b){
2535 SwsVector *sum= sws_sumVec(a, b);
2536 free(a->coeff);
2537 a->coeff= sum->coeff;
2538 a->length= sum->length;
2539 free(sum);
2540 }
2541
2542 void sws_subVec(SwsVector *a, SwsVector *b){
2543 SwsVector *diff= sws_diffVec(a, b);
2544 free(a->coeff);
2545 a->coeff= diff->coeff;
2546 a->length= diff->length;
2547 free(diff);
2548 }
2549
2550 void sws_convVec(SwsVector *a, SwsVector *b){
2551 SwsVector *conv= sws_getConvVec(a, b);
2552 free(a->coeff);
2553 a->coeff= conv->coeff;
2554 a->length= conv->length;
2555 free(conv);
2556 }
2557
2558 SwsVector *sws_cloneVec(SwsVector *a){
2559 double *coeff= memalign(sizeof(double), a->length*sizeof(double));
2560 int i;
2561 SwsVector *vec= malloc(sizeof(SwsVector));
2562
2563 vec->coeff= coeff;
2564 vec->length= a->length;
2565
2566 for(i=0; i<a->length; i++) coeff[i]= a->coeff[i];
2567
2568 return vec;
2569 }
2570
2571 void sws_printVec(SwsVector *a){
2572 int i;
2573 double max=0;
2574 double min=0;
2575 double range;
2576
2577 for(i=0; i<a->length; i++)
2578 if(a->coeff[i]>max) max= a->coeff[i];
2579
2580 for(i=0; i<a->length; i++)
2581 if(a->coeff[i]<min) min= a->coeff[i];
2582
2583 range= max - min;
2584
2585 for(i=0; i<a->length; i++)
2586 {
2587 int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
2588 MSG_DBG2("%1.3f ", a->coeff[i]);
2589 for(;x>0; x--) MSG_DBG2(" ");
2590 MSG_DBG2("|\n");
2591 }
2592 }
2593
2594 void sws_freeVec(SwsVector *a){
2595 if(!a) return;
2596 if(a->coeff) free(a->coeff);
2597 a->coeff=NULL;
2598 a->length=0;
2599 free(a);
2600 }
2601
2602 void sws_freeFilter(SwsFilter *filter){
2603 if(!filter) return;
2604
2605 if(filter->lumH) sws_freeVec(filter->lumH);
2606 if(filter->lumV) sws_freeVec(filter->lumV);
2607 if(filter->chrH) sws_freeVec(filter->chrH);
2608 if(filter->chrV) sws_freeVec(filter->chrV);
2609 free(filter);
2610 }
2611
2612
2613 void sws_freeContext(SwsContext *c){
2614 int i;
2615 if(!c) return;
2616
2617 if(c->lumPixBuf)
2618 {
2619 for(i=0; i<c->vLumBufSize; i++)
2620 {
2621 if(c->lumPixBuf[i]) free(c->lumPixBuf[i]);
2622 c->lumPixBuf[i]=NULL;
2623 }
2624 free(c->lumPixBuf);
2625 c->lumPixBuf=NULL;
2626 }
2627
2628 if(c->chrPixBuf)
2629 {
2630 for(i=0; i<c->vChrBufSize; i++)
2631 {
2632 if(c->chrPixBuf[i]) free(c->chrPixBuf[i]);
2633 c->chrPixBuf[i]=NULL;
2634 }
2635 free(c->chrPixBuf);
2636 c->chrPixBuf=NULL;
2637 }
2638
2639 if(c->vLumFilter) free(c->vLumFilter);
2640 c->vLumFilter = NULL;
2641 if(c->vChrFilter) free(c->vChrFilter);
2642 c->vChrFilter = NULL;
2643 if(c->hLumFilter) free(c->hLumFilter);
2644 c->hLumFilter = NULL;
2645 if(c->hChrFilter) free(c->hChrFilter);
2646 c->hChrFilter = NULL;
2647
2648 if(c->vLumFilterPos) free(c->vLumFilterPos);
2649 c->vLumFilterPos = NULL;
2650 if(c->vChrFilterPos) free(c->vChrFilterPos);
2651 c->vChrFilterPos = NULL;
2652 if(c->hLumFilterPos) free(c->hLumFilterPos);
2653 c->hLumFilterPos = NULL;
2654 if(c->hChrFilterPos) free(c->hChrFilterPos);
2655 c->hChrFilterPos = NULL;
2656
2657 #if defined(ARCH_X86) || defined(ARCH_X86_64)
2658 #ifdef MAP_ANONYMOUS
2659 if(c->funnyYCode) munmap(c->funnyYCode, MAX_FUNNY_CODE_SIZE);
2660 if(c->funnyUVCode) munmap(c->funnyUVCode, MAX_FUNNY_CODE_SIZE);
2661 #else
2662 if(c->funnyYCode) free(c->funnyYCode);
2663 if(c->funnyUVCode) free(c->funnyUVCode);
2664 #endif
2665 c->funnyYCode=NULL;
2666 c->funnyUVCode=NULL;
2667 #endif
2668
2669 if(c->lumMmx2Filter) free(c->lumMmx2Filter);
2670 c->lumMmx2Filter=NULL;
2671 if(c->chrMmx2Filter) free(c->chrMmx2Filter);
2672 c->chrMmx2Filter=NULL;
2673 if(c->lumMmx2FilterPos) free(c->lumMmx2FilterPos);
2674 c->lumMmx2FilterPos=NULL;
2675 if(c->chrMmx2FilterPos) free(c->chrMmx2FilterPos);
2676 c->chrMmx2FilterPos=NULL;
2677 if(c->yuvTable) free(c->yuvTable);
2678 c->yuvTable=NULL;
2679
2680 free(c);
2681 }
2682
mplayer with SMedia Glamo drivers