-sws 6 (luma bicubic & chroma bilinear)
[libav.git] / postproc / swscale.c
CommitLineData
fe8054c0
MN
1/*
2 Copyright (C) 2001-2002 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.
31190492 8
fe8054c0
MN
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.
31190492 13
fe8054c0
MN
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17*/
783e9cc9 18
28bf81c9 19/*
0c51ef97 20 supported Input formats: YV12, I420/IYUV, YUY2, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8/Y800, YVU9/IF09
cf7d1c1a 21 supported output formats: YV12, I420/IYUV, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
6c7506de 22 BGR15/16 support dithering
a861d4d7
MN
23
24 unscaled special converters
25 YV12/I420/IYUV -> BGR15/BGR16/BGR24/BGR32
26 YV12/I420/IYUV -> YV12/I420/IYUV
27 YUY2/BGR15/BGR16/BGR24/BGR32/RGB24/RGB32 -> same format
b935781b
MN
28 BGR24 -> BGR32 & RGB24 -> RGB32
29 BGR32 -> BGR24 & RGB32 -> RGB24
4bb3fa5e 30 BGR15 -> BGR16
b935781b
MN
31*/
32
33/*
34tested special converters
35 YV12/I420 -> BGR16
36 YV12 -> YV12
4bb3fa5e 37 BGR15 -> BGR16
1e1c4fe9 38 BGR16 -> BGR16
b935781b
MN
39
40untested special converters
1e1c4fe9
MN
41 YV12/I420 -> BGR15/BGR24/BGR32 (its the yuv2rgb stuff, so it should be ok)
42 YV12/I420 -> YV12/I420
43 YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
b935781b
MN
44 BGR24 -> BGR32 & RGB24 -> RGB32
45 BGR32 -> BGR24 & RGB32 -> RGB24
ec22603f 46 BGR24 -> YV12
28bf81c9
MN
47*/
48
d3f41512 49#include <inttypes.h>
dda87e9f 50#include <string.h>
077ea8a7 51#include <math.h>
c1b0bfb4 52#include <stdio.h>
d3f41512 53#include "../config.h"
9b464428 54#include "../mangle.h"
81b7c056 55#include <assert.h>
c1b0bfb4
MN
56#ifdef HAVE_MALLOC_H
57#include <malloc.h>
b6acbc3c
BS
58#else
59#include <stdlib.h>
c1b0bfb4 60#endif
d604bab9 61#include "swscale.h"
7630f2e0 62#include "../cpudetect.h"
a861d4d7 63#include "../bswap.h"
28bf81c9 64#include "../libvo/img_format.h"
37079906 65#include "rgb2rgb.h"
b0db4198 66#include "../libvo/fastmemcpy.h"
4a53a912 67#include "../mp_msg.h"
0d9f3d85
A
68
69#define MSG_WARN(args...) mp_msg(MSGT_SWS,MSGL_WARN, ##args )
70#define MSG_FATAL(args...) mp_msg(MSGT_SWS,MSGL_FATAL, ##args )
71#define MSG_ERR(args...) mp_msg(MSGT_SWS,MSGL_ERR, ##args )
72#define MSG_V(args...) mp_msg(MSGT_SWS,MSGL_V, ##args )
73#define MSG_DBG2(args...) mp_msg(MSGT_SWS,MSGL_DBG2, ##args )
74#define MSG_INFO(args...) mp_msg(MSGT_SWS,MSGL_INFO, ##args )
75
541c4eb9 76#undef MOVNTQ
7d7f78b5 77#undef PAVGB
d3f41512 78
783e9cc9 79//#undef HAVE_MMX2
7f56a527 80//#define HAVE_3DNOW
d3f41512 81//#undef HAVE_MMX
783e9cc9 82//#undef ARCH_X86
2ba1bff0 83//#define WORDS_BIGENDIAN
d604bab9 84#define DITHER1XBPP
d3f41512 85
ac6a2e45
MN
86#define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit
87
1e621b18 88#define RET 0xC3 //near return opcode for X86
c1b0bfb4 89
28bf81c9 90#ifdef MP_DEBUG
81b7c056 91#define ASSERT(x) assert(x);
28bf81c9 92#else
c1b0bfb4 93#define ASSERT(x) ;
28bf81c9
MN
94#endif
95
96#ifdef M_PI
97#define PI M_PI
98#else
99#define PI 3.14159265358979323846
100#endif
c1b0bfb4 101
6c7506de 102//FIXME replace this with something faster
44c1035c
MN
103#define isPlanarYUV(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_YVU9)
104#define isYUV(x) ((x)==IMGFMT_YUY2 || isPlanarYUV(x))
44c1035c 105#define isGray(x) ((x)==IMGFMT_Y800)
cf7d1c1a
MN
106#define isRGB(x) (((x)&IMGFMT_RGB_MASK)==IMGFMT_RGB)
107#define isBGR(x) (((x)&IMGFMT_BGR_MASK)==IMGFMT_BGR)
6ff0ad6b 108#define isSupportedIn(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 || (x)==IMGFMT_YUY2 \
b72034dd 109 || (x)==IMGFMT_BGR32|| (x)==IMGFMT_BGR24|| (x)==IMGFMT_BGR16|| (x)==IMGFMT_BGR15\
a861d4d7 110 || (x)==IMGFMT_RGB32|| (x)==IMGFMT_RGB24\
e616aa93 111 || (x)==IMGFMT_Y800 || (x)==IMGFMT_YVU9)
6ff0ad6b 112#define isSupportedOut(x) ((x)==IMGFMT_YV12 || (x)==IMGFMT_I420 \
cf7d1c1a 113 || isRGB(x) || isBGR(x)\
e616aa93 114 || (x)==IMGFMT_Y800 || (x)==IMGFMT_YVU9)
44c1035c 115#define isPacked(x) ((x)==IMGFMT_YUY2 || isRGB(x) || isBGR(x))
6ff0ad6b
MN
116
117#define RGB2YUV_SHIFT 16
1e621b18
MN
118#define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
119#define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
120#define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
121#define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
122#define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
123#define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
124#define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
125#define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
126#define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
6c7506de 127
e3d2500f 128extern int verbose; // defined in mplayer.c
783e9cc9
MN
129/*
130NOTES
d604bab9 131Special versions: fast Y 1:1 scaling (no interpolation in y direction)
31190492 132
783e9cc9 133TODO
d604bab9 134more intelligent missalignment avoidance for the horizontal scaler
c1b0bfb4
MN
135write special vertical cubic upscale version
136Optimize C code (yv12 / minmax)
ff7ba856 137add support for packed pixel yuv input & output
6ff0ad6b
MN
138add support for Y8 output
139optimize bgr24 & bgr32
ff7ba856 140add BGR4 output support
1e621b18 141write special BGR->BGR scaler
37079906 142deglobalize yuv2rgb*.c
783e9cc9 143*/
31190492 144
d604bab9 145#define ABS(a) ((a) > 0 ? (a) : (-(a)))
2ff198c1
MN
146#define MIN(a,b) ((a) > (b) ? (b) : (a))
147#define MAX(a,b) ((a) < (b) ? (b) : (a))
d604bab9 148
7630f2e0
MN
149#ifdef ARCH_X86
150#define CAN_COMPILE_X86_ASM
d604bab9
MN
151#endif
152
7630f2e0 153#ifdef CAN_COMPILE_X86_ASM
d604bab9 154static uint64_t __attribute__((aligned(8))) yCoeff= 0x2568256825682568LL;
390b20a6
MN
155static uint64_t __attribute__((aligned(8))) vrCoeff= 0x3343334333433343LL;
156static uint64_t __attribute__((aligned(8))) ubCoeff= 0x40cf40cf40cf40cfLL;
157static uint64_t __attribute__((aligned(8))) vgCoeff= 0xE5E2E5E2E5E2E5E2LL;
158static uint64_t __attribute__((aligned(8))) ugCoeff= 0xF36EF36EF36EF36ELL;
f62255fb
MN
159static uint64_t __attribute__((aligned(8))) bF8= 0xF8F8F8F8F8F8F8F8LL;
160static uint64_t __attribute__((aligned(8))) bFC= 0xFCFCFCFCFCFCFCFCLL;
d604bab9
MN
161static uint64_t __attribute__((aligned(8))) w400= 0x0400040004000400LL;
162static uint64_t __attribute__((aligned(8))) w80= 0x0080008000800080LL;
163static uint64_t __attribute__((aligned(8))) w10= 0x0010001000100010LL;
077ea8a7 164static uint64_t __attribute__((aligned(8))) w02= 0x0002000200020002LL;
d604bab9
MN
165static uint64_t __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
166static uint64_t __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
167static uint64_t __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
6ff0ad6b 168static uint64_t __attribute__((aligned(8))) bm01010101=0x00FF00FF00FF00FFLL;
d604bab9 169
3fe8e8f0
MN
170static volatile uint64_t __attribute__((aligned(8))) b5Dither;
171static volatile uint64_t __attribute__((aligned(8))) g5Dither;
172static volatile uint64_t __attribute__((aligned(8))) g6Dither;
173static volatile uint64_t __attribute__((aligned(8))) r5Dither;
d8fa3c54
MN
174
175static uint64_t __attribute__((aligned(8))) dither4[2]={
176 0x0103010301030103LL,
177 0x0200020002000200LL,};
178
179static uint64_t __attribute__((aligned(8))) dither8[2]={
180 0x0602060206020602LL,
181 0x0004000400040004LL,};
d604bab9
MN
182
183static uint64_t __attribute__((aligned(8))) b16Mask= 0x001F001F001F001FLL;
184static uint64_t __attribute__((aligned(8))) g16Mask= 0x07E007E007E007E0LL;
185static uint64_t __attribute__((aligned(8))) r16Mask= 0xF800F800F800F800LL;
186static uint64_t __attribute__((aligned(8))) b15Mask= 0x001F001F001F001FLL;
187static uint64_t __attribute__((aligned(8))) g15Mask= 0x03E003E003E003E0LL;
188static uint64_t __attribute__((aligned(8))) r15Mask= 0x7C007C007C007C00LL;
189
99d2cb72
MN
190static uint64_t __attribute__((aligned(8))) M24A= 0x00FF0000FF0000FFLL;
191static uint64_t __attribute__((aligned(8))) M24B= 0xFF0000FF0000FF00LL;
192static uint64_t __attribute__((aligned(8))) M24C= 0x0000FF0000FF0000LL;
193
ac6a2e45
MN
194#ifdef FAST_BGR2YV12
195static const uint64_t bgr2YCoeff __attribute__((aligned(8))) = 0x000000210041000DULL;
4342fc14
MN
196static const uint64_t bgr2UCoeff __attribute__((aligned(8))) = 0x0000FFEEFFDC0038ULL;
197static const uint64_t bgr2VCoeff __attribute__((aligned(8))) = 0x00000038FFD2FFF8ULL;
ac6a2e45
MN
198#else
199static const uint64_t bgr2YCoeff __attribute__((aligned(8))) = 0x000020E540830C8BULL;
4342fc14
MN
200static const uint64_t bgr2UCoeff __attribute__((aligned(8))) = 0x0000ED0FDAC23831ULL;
201static const uint64_t bgr2VCoeff __attribute__((aligned(8))) = 0x00003831D0E6F6EAULL;
ac6a2e45
MN
202#endif
203static const uint64_t bgr2YOffset __attribute__((aligned(8))) = 0x1010101010101010ULL;
4342fc14 204static const uint64_t bgr2UVOffset __attribute__((aligned(8)))= 0x8080808080808080ULL;
ac6a2e45 205static const uint64_t w1111 __attribute__((aligned(8))) = 0x0001000100010001ULL;
d604bab9 206#endif
783e9cc9
MN
207
208// clipping helper table for C implementations:
209static unsigned char clip_table[768];
210
28bf81c9 211//global sws_flags from the command line
1f347f22 212int sws_flags=2;
077ea8a7 213
5cebb24b
MN
214//global srcFilter
215SwsFilter src_filter= {NULL, NULL, NULL, NULL};
216
217float sws_lum_gblur= 0.0;
218float sws_chr_gblur= 0.0;
219int sws_chr_vshift= 0;
220int sws_chr_hshift= 0;
5521b193
MN
221float sws_chr_sharpen= 0.0;
222float sws_lum_sharpen= 0.0;
5cebb24b 223
28bf81c9
MN
224/* cpuCaps combined from cpudetect and whats actually compiled in
225 (if there is no support for something compiled in it wont appear here) */
226static CpuCaps cpuCaps;
d3f41512 227
28bf81c9
MN
228void (*swScale)(SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
229 int srcSliceH, uint8_t* dst[], int dstStride[])=NULL;
2ff198c1 230
5cebb24b 231static SwsVector *getConvVec(SwsVector *a, SwsVector *b);
5859233b 232static inline void orderYUV(int format, uint8_t * sortedP[], int sortedStride[], uint8_t * p[], int stride[]);
cf7d1c1a 233void *yuv2rgb_c_init (unsigned bpp, int mode, void *table_rV[256], void *table_gU[256], int table_gV[256], void *table_bU[256]);
5859233b 234
cf7d1c1a
MN
235extern const uint8_t dither_2x2_4[2][8];
236extern const uint8_t dither_2x2_8[2][8];
237extern const uint8_t dither_8x8_32[8][8];
238extern const uint8_t dither_8x8_73[8][8];
239extern const uint8_t dither_8x8_220[8][8];
5cebb24b 240
7630f2e0 241#ifdef CAN_COMPILE_X86_ASM
96034638
MN
242void in_asm_used_var_warning_killer()
243{
077ea8a7 244 volatile int i= yCoeff+vrCoeff+ubCoeff+vgCoeff+ugCoeff+bF8+bFC+w400+w80+w10+
5ac80202 245 bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+
6ff0ad6b 246 M24A+M24B+M24C+w02 + b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0]+bm01010101;
96034638
MN
247 if(i) i=0;
248}
249#endif
d604bab9 250
c7a810cc 251static int testFormat[]={
e616aa93 252IMGFMT_YVU9,
c7a810cc
MN
253IMGFMT_YV12,
254//IMGFMT_IYUV,
255IMGFMT_I420,
256IMGFMT_BGR15,
257IMGFMT_BGR16,
258IMGFMT_BGR24,
259IMGFMT_BGR32,
81a571a8
MN
260IMGFMT_RGB24,
261IMGFMT_RGB32,
c7a810cc
MN
262//IMGFMT_Y8,
263IMGFMT_Y800,
264//IMGFMT_YUY2,
2650
266};
267
268static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, int w, int h){
269 int x,y;
270 uint64_t ssd=0;
271
272 for(y=0; y<h; y++){
273 for(x=0; x<w; x++){
274 int d= src1[x + y*stride1] - src2[x + y*stride2];
275 ssd+= d*d;
276 }
277 }
278 return ssd;
279}
280
281// test by ref -> src -> dst -> out & compare out against ref
282// ref & out are YV12
283static void doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat, int dstFormat,
284 int srcW, int srcH, int dstW, int dstH, int flags){
285 uint8_t *src[3];
286 uint8_t *dst[3];
287 uint8_t *out[3];
288 int srcStride[3], dstStride[3];
289 int i;
290 uint64_t ssdY, ssdU, ssdV;
291 SwsContext *srcContext, *dstContext, *outContext;
292
293 for(i=0; i<3; i++){
294 srcStride[i]= srcW*4;
295 dstStride[i]= dstW*4;
296 src[i]= malloc(srcStride[i]*srcH);
297 dst[i]= malloc(dstStride[i]*dstH);
298 out[i]= malloc(refStride[i]*h);
299 }
300
301 srcContext= getSwsContext(w, h, IMGFMT_YV12, srcW, srcH, srcFormat, flags, NULL, NULL);
302 dstContext= getSwsContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL);
303 outContext= getSwsContext(dstW, dstH, dstFormat, w, h, IMGFMT_YV12, flags, NULL, NULL);
304 if(srcContext==NULL ||dstContext==NULL ||outContext==NULL){
305 printf("Failed allocating swsContext\n");
306 goto end;
307 }
308// printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2],
309// (int)src[0], (int)src[1], (int)src[2]);
310
311 srcContext->swScale(srcContext, ref, refStride, 0, h , src, srcStride);
312 dstContext->swScale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
313 outContext->swScale(outContext, dst, dstStride, 0, dstH, out, refStride);
314
315 ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
316 ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);
317 ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);
318
319 if(isGray(srcFormat) || isGray(dstFormat)) ssdU=ssdV=0; //FIXME check that output is really gray
320
321 ssdY/= w*h;
322 ssdU/= w*h/4;
323 ssdV/= w*h/4;
324
e616aa93 325 if(ssdY>100 || ssdU>50 || ssdV>50){
c7a810cc
MN
326 printf(" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5lld,%5lld,%5lld\n",
327 vo_format_name(srcFormat), srcW, srcH,
328 vo_format_name(dstFormat), dstW, dstH,
329 flags,
330 ssdY, ssdU, ssdV);
331 }
332
333 end:
334
335 freeSwsContext(srcContext);
336 freeSwsContext(dstContext);
337 freeSwsContext(outContext);
338
339 for(i=0; i<3; i++){
340 free(src[i]);
341 free(dst[i]);
342 free(out[i]);
343 }
344}
345
346static void selfTest(uint8_t *src[3], int stride[3], int w, int h){
347 int srcFormat, dstFormat, srcFormatIndex, dstFormatIndex;
348 int srcW, srcH, dstW, dstH;
349 int flags;
350
351 for(srcFormatIndex=0; ;srcFormatIndex++){
352 srcFormat= testFormat[srcFormatIndex];
353 if(!srcFormat) break;
354 for(dstFormatIndex=0; ;dstFormatIndex++){
355 dstFormat= testFormat[dstFormatIndex];
356 if(!dstFormat) break;
357 if(!isSupportedOut(dstFormat)) continue;
358
359 srcW= w+w/3;
360 srcH= h+h/3;
361 for(dstW=w; dstW<w*2; dstW+= dstW/3){
362 for(dstH=h; dstH<h*2; dstH+= dstH/3){
363 for(flags=1; flags<33; flags*=2)
364 doTest(src, stride, w, h, srcFormat, dstFormat,
365 srcW, srcH, dstW, dstH, flags);
366 }
367 }
368 }
369 }
370}
371
5859233b 372static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
e3d2500f 373 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
5859233b 374 uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
e3d2500f
MN
375{
376 //FIXME Optimize (just quickly writen not opti..)
377 int i;
5859233b 378 for(i=0; i<dstW; i++)
e3d2500f
MN
379 {
380 int val=0;
381 int j;
382 for(j=0; j<lumFilterSize; j++)
383 val += lumSrc[j][i] * lumFilter[j];
384
385 dest[i]= MIN(MAX(val>>19, 0), 255);
386 }
387
388 if(uDest != NULL)
5859233b 389 for(i=0; i<chrDstW; i++)
e3d2500f
MN
390 {
391 int u=0;
392 int v=0;
393 int j;
627690b5 394 for(j=0; j<chrFilterSize; j++)
e3d2500f
MN
395 {
396 u += chrSrc[j][i] * chrFilter[j];
397 v += chrSrc[j][i + 2048] * chrFilter[j];
398 }
399
400 uDest[i]= MIN(MAX(u>>19, 0), 255);
401 vDest[i]= MIN(MAX(v>>19, 0), 255);
402 }
403}
404
cf7d1c1a
MN
405#define YSCALE_YUV_2_RGBX_C(type) \
406 for(i=0; i<(dstW>>1); i++){\
407 int j;\
408 int Y1=0;\
409 int Y2=0;\
410 int U=0;\
411 int V=0;\
412 type *r, *b, *g;\
413 const int i2= 2*i;\
414 \
415 for(j=0; j<lumFilterSize; j++)\
416 {\
417 Y1 += lumSrc[j][i2] * lumFilter[j];\
418 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
419 }\
420 for(j=0; j<chrFilterSize; j++)\
421 {\
422 U += chrSrc[j][i] * chrFilter[j];\
423 V += chrSrc[j][i+2048] * chrFilter[j];\
424 }\
425 Y1>>=19;\
426 Y2>>=19;\
427 U >>=19;\
428 V >>=19;\
429 if((Y1|Y2|U|V)&256)\
430 {\
431 if(Y1>255) Y1=255;\
432 else if(Y1<0)Y1=0;\
433 if(Y2>255) Y2=255;\
434 else if(Y2<0)Y2=0;\
435 if(U>255) U=255;\
436 else if(U<0) U=0;\
437 if(V>255) V=255;\
438 else if(V<0) V=0;\
439 }\
440 r = c->table_rV[V];\
441 g = c->table_gU[U] + c->table_gV[V];\
442 b = c->table_bU[U];\
443
444#define YSCALE_YUV_2_RGB2_C(type) \
445 for(i=0; i<(dstW>>1); i++){\
446 const int i2= 2*i;\
447 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19;\
448 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19;\
449 int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19;\
450 int V= (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;\
451 type *r, *b, *g;\
452 r = c->table_rV[V];\
453 g = c->table_gU[U] + c->table_gV[V];\
454 b = c->table_bU[U];\
455
456#define YSCALE_YUV_2_RGB1_C(type) \
457 for(i=0; i<(dstW>>1); i++){\
458 const int i2= 2*i;\
459 int Y1= buf0[i2 ]>>7;\
460 int Y2= buf0[i2+1]>>7;\
461 int U= (uvbuf1[i ])>>7;\
462 int V= (uvbuf1[i+2048])>>7;\
463 type *r, *b, *g;\
464 r = c->table_rV[V];\
465 g = c->table_gU[U] + c->table_gV[V];\
466 b = c->table_bU[U];\
467
468#define YSCALE_YUV_2_RGB1B_C(type) \
469 for(i=0; i<(dstW>>1); i++){\
470 const int i2= 2*i;\
471 int Y1= buf0[i2 ]>>7;\
472 int Y2= buf0[i2+1]>>7;\
473 int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
474 int V= (uvbuf0[i+2048] + uvbuf1[i+2048])>>8;\
475 type *r, *b, *g;\
476 r = c->table_rV[V];\
477 g = c->table_gU[U] + c->table_gV[V];\
478 b = c->table_bU[U];\
479
480#define YSCALE_YUV_2_ANYRGB_C(func)\
481 switch(c->dstFormat)\
482 {\
483 case IMGFMT_BGR32:\
484 case IMGFMT_RGB32:\
485 func(uint32_t)\
486 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
487 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
488 } \
489 break;\
490 case IMGFMT_RGB24:\
491 func(uint8_t)\
492 ((uint8_t*)dest)[0]= r[Y1];\
493 ((uint8_t*)dest)[1]= g[Y1];\
494 ((uint8_t*)dest)[2]= b[Y1];\
495 ((uint8_t*)dest)[3]= r[Y2];\
496 ((uint8_t*)dest)[4]= g[Y2];\
497 ((uint8_t*)dest)[5]= b[Y2];\
498 ((uint8_t*)dest)+=6;\
499 }\
500 break;\
501 case IMGFMT_BGR24:\
502 func(uint8_t)\
503 ((uint8_t*)dest)[0]= b[Y1];\
504 ((uint8_t*)dest)[1]= g[Y1];\
505 ((uint8_t*)dest)[2]= r[Y1];\
506 ((uint8_t*)dest)[3]= b[Y2];\
507 ((uint8_t*)dest)[4]= g[Y2];\
508 ((uint8_t*)dest)[5]= r[Y2];\
509 ((uint8_t*)dest)+=6;\
510 }\
511 break;\
512 case IMGFMT_RGB16:\
513 case IMGFMT_BGR16:\
514 {\
515 const int dr1= dither_2x2_8[y&1 ][0];\
516 const int dg1= dither_2x2_4[y&1 ][0];\
517 const int db1= dither_2x2_8[(y&1)^1][0];\
518 const int dr2= dither_2x2_8[y&1 ][1];\
519 const int dg2= dither_2x2_4[y&1 ][1];\
520 const int db2= dither_2x2_8[(y&1)^1][1];\
521 func(uint16_t)\
522 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
523 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
524 }\
525 }\
526 break;\
527 case IMGFMT_RGB15:\
528 case IMGFMT_BGR15:\
529 {\
530 const int dr1= dither_2x2_8[y&1 ][0];\
531 const int dg1= dither_2x2_8[y&1 ][1];\
532 const int db1= dither_2x2_8[(y&1)^1][0];\
533 const int dr2= dither_2x2_8[y&1 ][1];\
534 const int dg2= dither_2x2_8[y&1 ][0];\
535 const int db2= dither_2x2_8[(y&1)^1][1];\
536 func(uint16_t)\
537 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
538 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
539 }\
540 }\
541 break;\
542 case IMGFMT_RGB8:\
543 case IMGFMT_BGR8:\
544 {\
545 const uint8_t * const d64= dither_8x8_73[y&7];\
546 const uint8_t * const d32= dither_8x8_32[y&7];\
547 func(uint8_t)\
548 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
549 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
550 }\
551 }\
552 break;\
553 case IMGFMT_RGB4:\
554 case IMGFMT_BGR4:\
555 {\
556 const uint8_t * const d64= dither_8x8_73 [y&7];\
557 const uint8_t * const d128=dither_8x8_220[y&7];\
558 func(uint8_t)\
559 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
560 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
561 }\
562 }\
563 break;\
564 case IMGFMT_RGB1:\
565 case IMGFMT_BGR1:\
566 {\
567 const uint8_t * const d128=dither_8x8_220[y&7];\
568 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
569 for(i=0; i<dstW-7; i+=8){\
570 int acc;\
571 acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
572 acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
573 acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
574 acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
575 acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
576 acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
577 acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
578 acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
579 ((uint8_t*)dest)[0]= acc;\
580 ((uint8_t*)dest)++;\
581 }\
582\
583/*\
584((uint8_t*)dest)-= dstW>>4;\
585{\
586 int acc=0;\
587 int left=0;\
588 static int top[1024];\
589 static int last_new[1024][1024];\
590 static int last_in3[1024][1024];\
591 static int drift[1024][1024];\
592 int topLeft=0;\
593 int shift=0;\
594 int count=0;\
595 const uint8_t * const d128=dither_8x8_220[y&7];\
596 int error_new=0;\
597 int error_in3=0;\
598 int f=0;\
599 \
600 for(i=dstW>>1; i<dstW; i++){\
601 int in= ((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19);\
602 int in2 = (76309 * (in - 16) + 32768) >> 16;\
603 int in3 = (in2 < 0) ? 0 : ((in2 > 255) ? 255 : in2);\
604 int old= (left*7 + topLeft + top[i]*5 + top[i+1]*3)/20 + in3\
605 + (last_new[y][i] - in3)*f/256;\
606 int new= old> 128 ? 255 : 0;\
607\
608 error_new+= ABS(last_new[y][i] - new);\
609 error_in3+= ABS(last_in3[y][i] - in3);\
610 f= error_new - error_in3*4;\
611 if(f<0) f=0;\
612 if(f>256) f=256;\
613\
614 topLeft= top[i];\
615 left= top[i]= old - new;\
616 last_new[y][i]= new;\
617 last_in3[y][i]= in3;\
618\
619 acc+= acc + (new&1);\
620 if((i&7)==6){\
621 ((uint8_t*)dest)[0]= acc;\
622 ((uint8_t*)dest)++;\
623 }\
624 }\
625}\
626*/\
627 }\
628 break;\
629 }\
630
631
632static inline void yuv2rgbXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
e3d2500f 633 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
cf7d1c1a 634 uint8_t *dest, int dstW, int y)
e3d2500f 635{
cf7d1c1a
MN
636 int i;
637 switch(c->dstFormat)
e3d2500f 638 {
cf7d1c1a
MN
639 case IMGFMT_RGB32:
640 case IMGFMT_BGR32:
641 YSCALE_YUV_2_RGBX_C(uint32_t)
642 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];
643 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];
e3d2500f 644 }
cf7d1c1a
MN
645 break;
646 case IMGFMT_RGB24:
647 YSCALE_YUV_2_RGBX_C(uint8_t)
648 ((uint8_t*)dest)[0]= r[Y1];
649 ((uint8_t*)dest)[1]= g[Y1];
650 ((uint8_t*)dest)[2]= b[Y1];
651 ((uint8_t*)dest)[3]= r[Y2];
652 ((uint8_t*)dest)[4]= g[Y2];
653 ((uint8_t*)dest)[5]= b[Y2];
654 ((uint8_t*)dest)+=6;
655 }
656 break;
657 case IMGFMT_BGR24:
658 YSCALE_YUV_2_RGBX_C(uint8_t)
659 ((uint8_t*)dest)[0]= b[Y1];
660 ((uint8_t*)dest)[1]= g[Y1];
661 ((uint8_t*)dest)[2]= r[Y1];
662 ((uint8_t*)dest)[3]= b[Y2];
663 ((uint8_t*)dest)[4]= g[Y2];
664 ((uint8_t*)dest)[5]= r[Y2];
665 ((uint8_t*)dest)+=6;
666 }
667 break;
668 case IMGFMT_RGB16:
669 case IMGFMT_BGR16:
670 {
671 const int dr1= dither_2x2_8[y&1 ][0];
672 const int dg1= dither_2x2_4[y&1 ][0];
673 const int db1= dither_2x2_8[(y&1)^1][0];
674 const int dr2= dither_2x2_8[y&1 ][1];
675 const int dg2= dither_2x2_4[y&1 ][1];
676 const int db2= dither_2x2_8[(y&1)^1][1];
677 YSCALE_YUV_2_RGBX_C(uint16_t)
678 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
679 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
e3d2500f 680 }
e3d2500f 681 }
cf7d1c1a
MN
682 break;
683 case IMGFMT_RGB15:
684 case IMGFMT_BGR15:
685 {
686 const int dr1= dither_2x2_8[y&1 ][0];
687 const int dg1= dither_2x2_8[y&1 ][1];
688 const int db1= dither_2x2_8[(y&1)^1][0];
689 const int dr2= dither_2x2_8[y&1 ][1];
690 const int dg2= dither_2x2_8[y&1 ][0];
691 const int db2= dither_2x2_8[(y&1)^1][1];
692 YSCALE_YUV_2_RGBX_C(uint16_t)
693 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
694 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
e3d2500f 695 }
cf7d1c1a
MN
696 }
697 break;
698 case IMGFMT_RGB8:
699 case IMGFMT_BGR8:
700 {
701 const uint8_t * const d64= dither_8x8_73[y&7];
702 const uint8_t * const d32= dither_8x8_32[y&7];
703 YSCALE_YUV_2_RGBX_C(uint8_t)
704 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];
705 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];
e3d2500f 706 }
e3d2500f 707 }
cf7d1c1a
MN
708 break;
709 case IMGFMT_RGB4:
710 case IMGFMT_BGR4:
711 {
712 const uint8_t * const d64= dither_8x8_73 [y&7];
713 const uint8_t * const d128=dither_8x8_220[y&7];
714 YSCALE_YUV_2_RGBX_C(uint8_t)
715 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];
716 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];
e3d2500f 717 }
cf7d1c1a
MN
718 }
719 break;
720 case IMGFMT_RGB1:
721 case IMGFMT_BGR1:
722 {
723 const uint8_t * const d128=dither_8x8_220[y&7];
724 uint8_t *g= c->table_gU[128] + c->table_gV[128];
725 int acc=0;
726 for(i=0; i<dstW-1; i+=2){
727 int j;
728 int Y1=0;
729 int Y2=0;
730
731 for(j=0; j<lumFilterSize; j++)
732 {
733 Y1 += lumSrc[j][i] * lumFilter[j];
734 Y2 += lumSrc[j][i+1] * lumFilter[j];
735 }
736 Y1>>=19;
737 Y2>>=19;
738 if((Y1|Y2)&256)
739 {
740 if(Y1>255) Y1=255;
741 else if(Y1<0)Y1=0;
742 if(Y2>255) Y2=255;
743 else if(Y2<0)Y2=0;
744 }
745 acc+= acc + g[Y1+d128[(i+0)&7]];
746 acc+= acc + g[Y2+d128[(i+1)&7]];
747 if((i&7)==6){
748 ((uint8_t*)dest)[0]= acc;
749 ((uint8_t*)dest)++;
750 }
e3d2500f 751 }
e3d2500f 752 }
cf7d1c1a 753 break;
e3d2500f
MN
754 }
755}
756
757
7630f2e0
MN
758//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
759//Plain C versions
726a959a
MN
760#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT)
761#define COMPILE_C
762#endif
763
764#ifdef CAN_COMPILE_X86_ASM
765
766#if (defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
767#define COMPILE_MMX
768#endif
769
770#if defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)
771#define COMPILE_MMX2
772#endif
773
774#if (defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)
775#define COMPILE_3DNOW
776#endif
777#endif //CAN_COMPILE_X86_ASM
778
779#undef HAVE_MMX
780#undef HAVE_MMX2
781#undef HAVE_3DNOW
726a959a
MN
782
783#ifdef COMPILE_C
7630f2e0
MN
784#undef HAVE_MMX
785#undef HAVE_MMX2
786#undef HAVE_3DNOW
7630f2e0
MN
787#define RENAME(a) a ## _C
788#include "swscale_template.c"
726a959a 789#endif
397c035e 790
7630f2e0 791#ifdef CAN_COMPILE_X86_ASM
397c035e 792
7630f2e0
MN
793//X86 versions
794/*
795#undef RENAME
796#undef HAVE_MMX
797#undef HAVE_MMX2
798#undef HAVE_3DNOW
799#define ARCH_X86
800#define RENAME(a) a ## _X86
801#include "swscale_template.c"
1faf0867 802*/
7630f2e0 803//MMX versions
726a959a 804#ifdef COMPILE_MMX
7630f2e0
MN
805#undef RENAME
806#define HAVE_MMX
807#undef HAVE_MMX2
808#undef HAVE_3DNOW
7630f2e0
MN
809#define RENAME(a) a ## _MMX
810#include "swscale_template.c"
726a959a 811#endif
7630f2e0
MN
812
813//MMX2 versions
726a959a 814#ifdef COMPILE_MMX2
7630f2e0
MN
815#undef RENAME
816#define HAVE_MMX
817#define HAVE_MMX2
818#undef HAVE_3DNOW
7630f2e0
MN
819#define RENAME(a) a ## _MMX2
820#include "swscale_template.c"
726a959a 821#endif
7630f2e0
MN
822
823//3DNOW versions
726a959a 824#ifdef COMPILE_3DNOW
7630f2e0
MN
825#undef RENAME
826#define HAVE_MMX
827#undef HAVE_MMX2
828#define HAVE_3DNOW
7630f2e0
MN
829#define RENAME(a) a ## _3DNow
830#include "swscale_template.c"
726a959a 831#endif
7630f2e0
MN
832
833#endif //CAN_COMPILE_X86_ASM
834
835// minor note: the HAVE_xyz is messed up after that line so dont use it
d604bab9 836
d3f41512 837
6c7506de 838// old global scaler, dont use for new code
28bf81c9
MN
839// will use sws_flags from the command line
840void SwScale_YV12slice(unsigned char* src[], int srcStride[], int srcSliceY ,
841 int srcSliceH, uint8_t* dst[], int dstStride, int dstbpp,
d1fac6cf 842 int srcW, int srcH, int dstW, int dstH){
31190492 843
28bf81c9
MN
844 static SwsContext *context=NULL;
845 int dstFormat;
28bf81c9
MN
846 int dstStride3[3]= {dstStride, dstStride>>1, dstStride>>1};
847
6c7506de 848 switch(dstbpp)
28bf81c9 849 {
6c7506de
MN
850 case 8 : dstFormat= IMGFMT_Y8; break;
851 case 12: dstFormat= IMGFMT_YV12; break;
852 case 15: dstFormat= IMGFMT_BGR15; break;
853 case 16: dstFormat= IMGFMT_BGR16; break;
854 case 24: dstFormat= IMGFMT_BGR24; break;
855 case 32: dstFormat= IMGFMT_BGR32; break;
856 default: return;
857 }
858
859 if(!context) context=getSwsContextFromCmdLine(srcW, srcH, IMGFMT_YV12, dstW, dstH, dstFormat);
860
b6654a54 861 context->swScale(context, src, srcStride, srcSliceY, srcSliceH, dst, dstStride3);
6c7506de
MN
862}
863
5859233b 864void swsGetFlagsAndFilterFromCmdLine(int *flags, SwsFilter **srcFilterParam, SwsFilter **dstFilterParam)
6c7506de 865{
6c7506de 866 static int firstTime=1;
5859233b 867 *flags=0;
6c7506de 868
5521b193 869#ifdef ARCH_X86
6c7506de
MN
870 if(gCpuCaps.hasMMX)
871 asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
5521b193 872#endif
6c7506de
MN
873 if(firstTime)
874 {
28bf81c9 875 firstTime=0;
5859233b 876 *flags= SWS_PRINT_INFO;
6c7506de 877 }
5859233b 878 else if(verbose>1) *flags= SWS_PRINT_INFO;
6c7506de
MN
879
880 if(src_filter.lumH) freeVec(src_filter.lumH);
881 if(src_filter.lumV) freeVec(src_filter.lumV);
882 if(src_filter.chrH) freeVec(src_filter.chrH);
883 if(src_filter.chrV) freeVec(src_filter.chrV);
884
885 if(sws_lum_gblur!=0.0){
886 src_filter.lumH= getGaussianVec(sws_lum_gblur, 3.0);
887 src_filter.lumV= getGaussianVec(sws_lum_gblur, 3.0);
888 }else{
889 src_filter.lumH= getIdentityVec();
890 src_filter.lumV= getIdentityVec();
891 }
c7f822d9 892
6c7506de
MN
893 if(sws_chr_gblur!=0.0){
894 src_filter.chrH= getGaussianVec(sws_chr_gblur, 3.0);
895 src_filter.chrV= getGaussianVec(sws_chr_gblur, 3.0);
896 }else{
897 src_filter.chrH= getIdentityVec();
898 src_filter.chrV= getIdentityVec();
899 }
5521b193 900
6c7506de
MN
901 if(sws_chr_sharpen!=0.0){
902 SwsVector *g= getConstVec(-1.0, 3);
903 SwsVector *id= getConstVec(10.0/sws_chr_sharpen, 1);
904 g->coeff[1]=2.0;
905 addVec(id, g);
906 convVec(src_filter.chrH, id);
907 convVec(src_filter.chrV, id);
908 freeVec(g);
909 freeVec(id);
910 }
5521b193 911
6c7506de
MN
912 if(sws_lum_sharpen!=0.0){
913 SwsVector *g= getConstVec(-1.0, 3);
914 SwsVector *id= getConstVec(10.0/sws_lum_sharpen, 1);
915 g->coeff[1]=2.0;
916 addVec(id, g);
917 convVec(src_filter.lumH, id);
918 convVec(src_filter.lumV, id);
919 freeVec(g);
920 freeVec(id);
921 }
c7f822d9 922
6c7506de
MN
923 if(sws_chr_hshift)
924 shiftVec(src_filter.chrH, sws_chr_hshift);
c7f822d9 925
6c7506de
MN
926 if(sws_chr_vshift)
927 shiftVec(src_filter.chrV, sws_chr_vshift);
5521b193 928
6c7506de
MN
929 normalizeVec(src_filter.chrH, 1.0);
930 normalizeVec(src_filter.chrV, 1.0);
931 normalizeVec(src_filter.lumH, 1.0);
932 normalizeVec(src_filter.lumV, 1.0);
28bf81c9 933
6c7506de
MN
934 if(verbose > 1) printVec(src_filter.chrH);
935 if(verbose > 1) printVec(src_filter.lumH);
28bf81c9
MN
936
937 switch(sws_flags)
938 {
5859233b
MN
939 case 0: *flags|= SWS_FAST_BILINEAR; break;
940 case 1: *flags|= SWS_BILINEAR; break;
941 case 2: *flags|= SWS_BICUBIC; break;
942 case 3: *flags|= SWS_X; break;
943 case 4: *flags|= SWS_POINT; break;
944 case 5: *flags|= SWS_AREA; break;
81a571a8 945 case 6: *flags|= SWS_BICUBLIN; break;
5859233b 946 default:*flags|= SWS_BILINEAR; break;
28bf81c9 947 }
5859233b
MN
948
949 *srcFilterParam= &src_filter;
950 *dstFilterParam= NULL;
951}
952
953// will use sws_flags & src_filter (from cmd line)
954SwsContext *getSwsContextFromCmdLine(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat)
955{
956 int flags;
957 SwsFilter *dstFilterParam, *srcFilterParam;
958 swsGetFlagsAndFilterFromCmdLine(&flags, &srcFilterParam, &dstFilterParam);
28bf81c9 959
5859233b 960 return getSwsContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, srcFilterParam, dstFilterParam);
28bf81c9
MN
961}
962
6c7506de 963
c7f822d9
MN
964static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
965 int srcW, int dstW, int filterAlign, int one, int flags,
966 SwsVector *srcFilter, SwsVector *dstFilter)
28bf81c9
MN
967{
968 int i;
c7f822d9
MN
969 int filterSize;
970 int filter2Size;
971 int minFilterSize;
972 double *filter=NULL;
973 double *filter2=NULL;
28bf81c9
MN
974#ifdef ARCH_X86
975 if(gCpuCaps.hasMMX)
976 asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
726a959a 977#endif
31190492 978
adeaecb9 979 // Note the +1 is for the MMXscaler which reads over the end
6c7506de 980 *filterPos = (int16_t*)memalign(8, (dstW+1)*sizeof(int16_t));
6c7506de 981
28bf81c9
MN
982 if(ABS(xInc - 0x10000) <10) // unscaled
983 {
984 int i;
c7f822d9
MN
985 filterSize= 1;
986 filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
987 for(i=0; i<dstW*filterSize; i++) filter[i]=0;
28bf81c9
MN
988
989 for(i=0; i<dstW; i++)
990 {
c7f822d9
MN
991 filter[i*filterSize]=1;
992 (*filterPos)[i]=i;
28bf81c9
MN
993 }
994
995 }
ff7ba856
MN
996 else if(flags&SWS_POINT) // lame looking point sampling mode
997 {
998 int i;
999 int xDstInSrc;
1000 filterSize= 1;
1001 filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
1002
1003 xDstInSrc= xInc/2 - 0x8000;
1004 for(i=0; i<dstW; i++)
1005 {
8a01d20c 1006 int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
ff7ba856
MN
1007
1008 (*filterPos)[i]= xx;
1009 filter[i]= 1.0;
1010 xDstInSrc+= xInc;
1011 }
1012 }
28bf81c9
MN
1013 else if(xInc <= (1<<16) || (flags&SWS_FAST_BILINEAR)) // upscale
1014 {
1015 int i;
1016 int xDstInSrc;
c7f822d9
MN
1017 if (flags&SWS_BICUBIC) filterSize= 4;
1018 else if(flags&SWS_X ) filterSize= 4;
d8863d37 1019 else filterSize= 2; // SWS_BILINEAR / SWS_AREA
c7f822d9 1020 filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
28bf81c9
MN
1021
1022 xDstInSrc= xInc/2 - 0x8000;
1023 for(i=0; i<dstW; i++)
1024 {
8a01d20c 1025 int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
28bf81c9
MN
1026 int j;
1027
c7f822d9 1028 (*filterPos)[i]= xx;
28bf81c9
MN
1029 if((flags & SWS_BICUBIC) || (flags & SWS_X))
1030 {
1031 double d= ABS(((xx+1)<<16) - xDstInSrc)/(double)(1<<16);
1032 double y1,y2,y3,y4;
1033 double A= -0.6;
1034 if(flags & SWS_BICUBIC){
1035 // Equation is from VirtualDub
1036 y1 = ( + A*d - 2.0*A*d*d + A*d*d*d);
1037 y2 = (+ 1.0 - (A+3.0)*d*d + (A+2.0)*d*d*d);
1038 y3 = ( - A*d + (2.0*A+3.0)*d*d - (A+2.0)*d*d*d);
1039 y4 = ( + A*d*d - A*d*d*d);
1040 }else{
1041 // cubic interpolation (derived it myself)
1042 y1 = ( -2.0*d + 3.0*d*d - 1.0*d*d*d)/6.0;
1043 y2 = (6.0 -3.0*d - 6.0*d*d + 3.0*d*d*d)/6.0;
1044 y3 = ( +6.0*d + 3.0*d*d - 3.0*d*d*d)/6.0;
1045 y4 = ( -1.0*d + 1.0*d*d*d)/6.0;
1046 }
1047
c7f822d9
MN
1048 filter[i*filterSize + 0]= y1;
1049 filter[i*filterSize + 1]= y2;
1050 filter[i*filterSize + 2]= y3;
1051 filter[i*filterSize + 3]= y4;
28bf81c9
MN
1052 }
1053 else
1054 {
d8863d37 1055 //Bilinear upscale / linear interpolate / Area averaging
c7f822d9 1056 for(j=0; j<filterSize; j++)
28bf81c9
MN
1057 {
1058 double d= ABS((xx<<16) - xDstInSrc)/(double)(1<<16);
1059 double coeff= 1.0 - d;
1060 if(coeff<0) coeff=0;
c7f822d9 1061 filter[i*filterSize + j]= coeff;
28bf81c9
MN
1062 xx++;
1063 }
1064 }
1065 xDstInSrc+= xInc;
1066 }
1067 }
1068 else // downscale
1069 {
1070 int xDstInSrc;
81b7c056
MN
1071 ASSERT(dstW <= srcW)
1072
d8863d37
MN
1073 if(flags&SWS_BICUBIC) filterSize= (int)ceil(1 + 4.0*srcW / (double)dstW);
1074 else if(flags&SWS_X) filterSize= (int)ceil(1 + 4.0*srcW / (double)dstW);
1075 else if(flags&SWS_AREA) filterSize= (int)ceil(1 + 1.0*srcW / (double)dstW);
1076 else /* BILINEAR */ filterSize= (int)ceil(1 + 2.0*srcW / (double)dstW);
c7f822d9 1077 filter= (double*)memalign(8, dstW*sizeof(double)*filterSize);
28bf81c9
MN
1078
1079 xDstInSrc= xInc/2 - 0x8000;
1080 for(i=0; i<dstW; i++)
1081 {
c7f822d9 1082 int xx= (int)((double)xDstInSrc/(double)(1<<16) - (filterSize-1)*0.5 + 0.5);
28bf81c9 1083 int j;
c7f822d9
MN
1084 (*filterPos)[i]= xx;
1085 for(j=0; j<filterSize; j++)
28bf81c9
MN
1086 {
1087 double d= ABS((xx<<16) - xDstInSrc)/(double)xInc;
1088 double coeff;
1089 if((flags & SWS_BICUBIC) || (flags & SWS_X))
1090 {
1091 double A= -0.75;
1092// d*=2;
1093 // Equation is from VirtualDub
1094 if(d<1.0)
1095 coeff = (1.0 - (A+3.0)*d*d + (A+2.0)*d*d*d);
1096 else if(d<2.0)
1097 coeff = (-4.0*A + 8.0*A*d - 5.0*A*d*d + A*d*d*d);
1098 else
1099 coeff=0.0;
1100 }
d8863d37 1101 else if(flags & SWS_AREA)
28bf81c9 1102 {
d8863d37
MN
1103 double srcPixelSize= (1<<16)/(double)xInc;
1104 if(d + srcPixelSize/2 < 0.5) coeff= 1.0;
1105 else if(d - srcPixelSize/2 < 0.5) coeff= (0.5-d)/srcPixelSize + 0.5;
1106 else coeff=0.0;
1107 }
28bf81c9
MN
1108 else
1109 {
1110 coeff= 1.0 - d;
1111 if(coeff<0) coeff=0;
1112 }
c7f822d9 1113 filter[i*filterSize + j]= coeff;
28bf81c9
MN
1114 xx++;
1115 }
1116 xDstInSrc+= xInc;
1117 }
1118 }
1119
c7f822d9
MN
1120 /* apply src & dst Filter to filter -> filter2
1121 free(filter);
1122 */
81b7c056 1123 ASSERT(filterSize>0)
c7f822d9
MN
1124 filter2Size= filterSize;
1125 if(srcFilter) filter2Size+= srcFilter->length - 1;
1126 if(dstFilter) filter2Size+= dstFilter->length - 1;
81b7c056 1127 ASSERT(filter2Size>0)
c7f822d9
MN
1128 filter2= (double*)memalign(8, filter2Size*dstW*sizeof(double));
1129
1130 for(i=0; i<dstW; i++)
1131 {
1132 int j;
1133 SwsVector scaleFilter;
1134 SwsVector *outVec;
1135
1136 scaleFilter.coeff= filter + i*filterSize;
1137 scaleFilter.length= filterSize;
1138
5cebb24b 1139 if(srcFilter) outVec= getConvVec(srcFilter, &scaleFilter);
c7f822d9
MN
1140 else outVec= &scaleFilter;
1141
1142 ASSERT(outVec->length == filter2Size)
1143 //FIXME dstFilter
1144
1145 for(j=0; j<outVec->length; j++)
1146 {
1147 filter2[i*filter2Size + j]= outVec->coeff[j];
1148 }
1149
1150 (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
1151
1152 if(outVec != &scaleFilter) freeVec(outVec);
1153 }
1154 free(filter); filter=NULL;
1155
1156 /* try to reduce the filter-size (step1 find size and shift left) */
1157 // Assume its near normalized (*0.5 or *2.0 is ok but * 0.001 is not)
1158 minFilterSize= 0;
1159 for(i=dstW-1; i>=0; i--)
1160 {
1161 int min= filter2Size;
1162 int j;
1163 double cutOff=0.0;
1164
1165 /* get rid off near zero elements on the left by shifting left */
1166 for(j=0; j<filter2Size; j++)
1167 {
1168 int k;
1169 cutOff += ABS(filter2[i*filter2Size]);
1170
1171 if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
1172
1173 /* preserve Monotonicity because the core cant handle the filter otherwise */
1174 if(i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
1175
1176 // Move filter coeffs left
1177 for(k=1; k<filter2Size; k++)
1178 filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
1179 filter2[i*filter2Size + k - 1]= 0.0;
1180 (*filterPos)[i]++;
1181 }
1182
1183 cutOff=0.0;
1184 /* count near zeros on the right */
1185 for(j=filter2Size-1; j>0; j--)
1186 {
1187 cutOff += ABS(filter2[i*filter2Size + j]);
1188
1189 if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
1190 min--;
1191 }
1192
1193 if(min>minFilterSize) minFilterSize= min;
1194 }
1195
81b7c056 1196 ASSERT(minFilterSize > 0)
6c7506de 1197 filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
81b7c056 1198 ASSERT(filterSize > 0)
6c7506de
MN
1199 filter= (double*)memalign(8, filterSize*dstW*sizeof(double));
1200 *outFilterSize= filterSize;
1201
4a53a912 1202 if(flags&SWS_PRINT_INFO)
0d9f3d85 1203 MSG_INFO("SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
c7f822d9
MN
1204 /* try to reduce the filter-size (step2 reduce it) */
1205 for(i=0; i<dstW; i++)
1206 {
1207 int j;
1208
6c7506de
MN
1209 for(j=0; j<filterSize; j++)
1210 {
1211 if(j>=filter2Size) filter[i*filterSize + j]= 0.0;
1212 else filter[i*filterSize + j]= filter2[i*filter2Size + j];
1213 }
c7f822d9 1214 }
6c7506de
MN
1215 free(filter2); filter2=NULL;
1216
c7f822d9
MN
1217
1218 //FIXME try to align filterpos if possible
1219
28bf81c9
MN
1220 //fix borders
1221 for(i=0; i<dstW; i++)
1222 {
1223 int j;
c7f822d9 1224 if((*filterPos)[i] < 0)
28bf81c9
MN
1225 {
1226 // Move filter coeffs left to compensate for filterPos
6c7506de 1227 for(j=1; j<filterSize; j++)
28bf81c9 1228 {
c7f822d9 1229 int left= MAX(j + (*filterPos)[i], 0);
6c7506de
MN
1230 filter[i*filterSize + left] += filter[i*filterSize + j];
1231 filter[i*filterSize + j]=0;
28bf81c9 1232 }
c7f822d9 1233 (*filterPos)[i]= 0;
28bf81c9
MN
1234 }
1235
6c7506de 1236 if((*filterPos)[i] + filterSize > srcW)
28bf81c9 1237 {
6c7506de 1238 int shift= (*filterPos)[i] + filterSize - srcW;
28bf81c9 1239 // Move filter coeffs right to compensate for filterPos
6c7506de 1240 for(j=filterSize-2; j>=0; j--)
28bf81c9 1241 {
6c7506de
MN
1242 int right= MIN(j + shift, filterSize-1);
1243 filter[i*filterSize +right] += filter[i*filterSize +j];
1244 filter[i*filterSize +j]=0;
28bf81c9 1245 }
6c7506de 1246 (*filterPos)[i]= srcW - filterSize;
28bf81c9
MN
1247 }
1248 }
1249
6c7506de
MN
1250 // Note the +1 is for the MMXscaler which reads over the end
1251 *outFilter= (int16_t*)memalign(8, *outFilterSize*(dstW+1)*sizeof(int16_t));
1252 memset(*outFilter, 0, *outFilterSize*(dstW+1)*sizeof(int16_t));
c7f822d9
MN
1253
1254 /* Normalize & Store in outFilter */
28bf81c9
MN
1255 for(i=0; i<dstW; i++)
1256 {
1257 int j;
1258 double sum=0;
1259 double scale= one;
6c7506de 1260 for(j=0; j<filterSize; j++)
28bf81c9 1261 {
6c7506de 1262 sum+= filter[i*filterSize + j];
28bf81c9
MN
1263 }
1264 scale/= sum;
6c7506de 1265 for(j=0; j<filterSize; j++)
28bf81c9 1266 {
6c7506de 1267 (*outFilter)[i*(*outFilterSize) + j]= (int)(filter[i*filterSize + j]*scale);
28bf81c9
MN
1268 }
1269 }
adeaecb9
MN
1270
1271 (*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
1272 for(i=0; i<*outFilterSize; i++)
1273 {
1274 int j= dstW*(*outFilterSize);
1275 (*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
1276 }
c7f822d9 1277
6c7506de 1278 free(filter);
7630f2e0 1279}
31190492 1280
28bf81c9 1281#ifdef ARCH_X86
b7dc6f66 1282static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode, int16_t *filter, int32_t *filterPos, int numSplits)
28bf81c9 1283{
b7dc6f66
MN
1284 uint8_t *fragmentA;
1285 int imm8OfPShufW1A;
1286 int imm8OfPShufW2A;
1287 int fragmentLengthA;
1288 uint8_t *fragmentB;
1289 int imm8OfPShufW1B;
1290 int imm8OfPShufW2B;
1291 int fragmentLengthB;
1292 int fragmentPos;
28bf81c9
MN
1293
1294 int xpos, i;
1295
1296 // create an optimized horizontal scaling routine
1297
1298 //code fragment
1299
1300 asm volatile(
1301 "jmp 9f \n\t"
1302 // Begin
1303 "0: \n\t"
b7dc6f66
MN
1304 "movq (%%edx, %%eax), %%mm3 \n\t"
1305 "movd (%%ecx, %%esi), %%mm0 \n\t"
1306 "movd 1(%%ecx, %%esi), %%mm1 \n\t"
1307 "punpcklbw %%mm7, %%mm1 \n\t"
1308 "punpcklbw %%mm7, %%mm0 \n\t"
28bf81c9
MN
1309 "pshufw $0xFF, %%mm1, %%mm1 \n\t"
1310 "1: \n\t"
28bf81c9
MN
1311 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1312 "2: \n\t"
28bf81c9 1313 "psubw %%mm1, %%mm0 \n\t"
b7dc6f66 1314 "movl 8(%%ebx, %%eax), %%esi \n\t"
28bf81c9 1315 "pmullw %%mm3, %%mm0 \n\t"
28bf81c9
MN
1316 "psllw $7, %%mm1 \n\t"
1317 "paddw %%mm1, %%mm0 \n\t"
1318
1319 "movq %%mm0, (%%edi, %%eax) \n\t"
1320
1321 "addl $8, %%eax \n\t"
1322 // End
1323 "9: \n\t"
1324// "int $3\n\t"
1325 "leal 0b, %0 \n\t"
1326 "leal 1b, %1 \n\t"
1327 "leal 2b, %2 \n\t"
1328 "decl %1 \n\t"
1329 "decl %2 \n\t"
1330 "subl %0, %1 \n\t"
1331 "subl %0, %2 \n\t"
1332 "leal 9b, %3 \n\t"
1333 "subl %0, %3 \n\t"
b7dc6f66
MN
1334
1335
1336 :"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
1337 "=r" (fragmentLengthA)
28bf81c9
MN
1338 );
1339
b7dc6f66
MN
1340 asm volatile(
1341 "jmp 9f \n\t"
1342 // Begin
1343 "0: \n\t"
1344 "movq (%%edx, %%eax), %%mm3 \n\t"
1345 "movd (%%ecx, %%esi), %%mm0 \n\t"
1346 "punpcklbw %%mm7, %%mm0 \n\t"
1347 "pshufw $0xFF, %%mm0, %%mm1 \n\t"
1348 "1: \n\t"
1349 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1350 "2: \n\t"
1351 "psubw %%mm1, %%mm0 \n\t"
1352 "movl 8(%%ebx, %%eax), %%esi \n\t"
1353 "pmullw %%mm3, %%mm0 \n\t"
1354 "psllw $7, %%mm1 \n\t"
1355 "paddw %%mm1, %%mm0 \n\t"
1356
1357 "movq %%mm0, (%%edi, %%eax) \n\t"
28bf81c9 1358
b7dc6f66
MN
1359 "addl $8, %%eax \n\t"
1360 // End
1361 "9: \n\t"
1362// "int $3\n\t"
1363 "leal 0b, %0 \n\t"
1364 "leal 1b, %1 \n\t"
1365 "leal 2b, %2 \n\t"
1366 "decl %1 \n\t"
1367 "decl %2 \n\t"
1368 "subl %0, %1 \n\t"
1369 "subl %0, %2 \n\t"
1370 "leal 9b, %3 \n\t"
1371 "subl %0, %3 \n\t"
1372
1373
1374 :"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
1375 "=r" (fragmentLengthB)
1376 );
1377
1378 xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
1379 fragmentPos=0;
1380
1381 for(i=0; i<dstW/numSplits; i++)
28bf81c9
MN
1382 {
1383 int xx=xpos>>16;
1384
1385 if((i&3) == 0)
1386 {
1387 int a=0;
1388 int b=((xpos+xInc)>>16) - xx;
1389 int c=((xpos+xInc*2)>>16) - xx;
1390 int d=((xpos+xInc*3)>>16) - xx;
1391
b7dc6f66
MN
1392 filter[i ] = (( xpos & 0xFFFF) ^ 0xFFFF)>>9;
1393 filter[i+1] = (((xpos+xInc ) & 0xFFFF) ^ 0xFFFF)>>9;
1394 filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
1395 filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
1396 filterPos[i/2]= xx;
1397
1398 if(d+1<4)
1399 {
1400 int maxShift= 3-(d+1);
1401 int shift=0;
1402
1403 memcpy(funnyCode + fragmentPos, fragmentB, fragmentLengthB);
1404
1405 funnyCode[fragmentPos + imm8OfPShufW1B]=
1406 (a+1) | ((b+1)<<2) | ((c+1)<<4) | ((d+1)<<6);
1407 funnyCode[fragmentPos + imm8OfPShufW2B]=
1408 a | (b<<2) | (c<<4) | (d<<6);
1409
1410 if(i+3>=dstW) shift=maxShift; //avoid overread
1411 else if((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
1412
1413 if(shift && i>=shift)
1414 {
1415 funnyCode[fragmentPos + imm8OfPShufW1B]+= 0x55*shift;
1416 funnyCode[fragmentPos + imm8OfPShufW2B]+= 0x55*shift;
1417 filterPos[i/2]-=shift;
1418 }
1419
1420 fragmentPos+= fragmentLengthB;
1421 }
1422 else
1423 {
1424 int maxShift= 3-d;
1425 int shift=0;
1426
1427 memcpy(funnyCode + fragmentPos, fragmentA, fragmentLengthA);
28bf81c9 1428
b7dc6f66
MN
1429 funnyCode[fragmentPos + imm8OfPShufW1A]=
1430 funnyCode[fragmentPos + imm8OfPShufW2A]=
1431 a | (b<<2) | (c<<4) | (d<<6);
28bf81c9 1432
b7dc6f66
MN
1433 if(i+4>=dstW) shift=maxShift; //avoid overread
1434 else if((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //partial align
28bf81c9 1435
b7dc6f66
MN
1436 if(shift && i>=shift)
1437 {
1438 funnyCode[fragmentPos + imm8OfPShufW1A]+= 0x55*shift;
1439 funnyCode[fragmentPos + imm8OfPShufW2A]+= 0x55*shift;
1440 filterPos[i/2]-=shift;
1441 }
1442
1443 fragmentPos+= fragmentLengthA;
1444 }
1445
1446 funnyCode[fragmentPos]= RET;
28bf81c9
MN
1447 }
1448 xpos+=xInc;
1449 }
b7dc6f66 1450 filterPos[i/2]= xpos>>16; // needed to jump to the next part
28bf81c9
MN
1451}
1452#endif // ARCH_X86
1453
1454//FIXME remove
31190492 1455void SwScale_Init(){
28bf81c9
MN
1456}
1457
1458static void globalInit(){
31190492
A
1459 // generating tables:
1460 int i;
c1b0bfb4
MN
1461 for(i=0; i<768; i++){
1462 int c= MIN(MAX(i-256, 0), 255);
1463 clip_table[i]=c;
b18ea156 1464 }
c1b0bfb4 1465
28bf81c9
MN
1466cpuCaps= gCpuCaps;
1467
1468#ifdef RUNTIME_CPUDETECT
1469#ifdef CAN_COMPILE_X86_ASM
1470 // ordered per speed fasterst first
1471 if(gCpuCaps.hasMMX2)
1472 swScale= swScale_MMX2;
1473 else if(gCpuCaps.has3DNow)
7f56a527 1474 swScale= swScale_3DNow;
28bf81c9
MN
1475 else if(gCpuCaps.hasMMX)
1476 swScale= swScale_MMX;
1477 else
1478 swScale= swScale_C;
1479
1480#else
1481 swScale= swScale_C;
1482 cpuCaps.hasMMX2 = cpuCaps.hasMMX = cpuCaps.has3DNow = 0;
1483#endif
1484#else //RUNTIME_CPUDETECT
1485#ifdef HAVE_MMX2
1486 swScale= swScale_MMX2;
1487 cpuCaps.has3DNow = 0;
1488#elif defined (HAVE_3DNOW)
7f56a527 1489 swScale= swScale_3DNow;
28bf81c9
MN
1490 cpuCaps.hasMMX2 = 0;
1491#elif defined (HAVE_MMX)
1492 swScale= swScale_MMX;
1493 cpuCaps.hasMMX2 = cpuCaps.has3DNow = 0;
1494#else
1495 swScale= swScale_C;
1496 cpuCaps.hasMMX2 = cpuCaps.hasMMX = cpuCaps.has3DNow = 0;
1497#endif
1498#endif //!RUNTIME_CPUDETECT
31190492 1499}
7630f2e0 1500
0d9f3d85
A
1501static void PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1502 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1503 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1504 /* Copy Y plane */
1505 if(dstStride[0]==srcStride[0])
1506 memcpy(dst, src[0], srcSliceH*dstStride[0]);
1507 else
1508 {
1509 int i;
1510 uint8_t *srcPtr= src[0];
1511 uint8_t *dstPtr= dst;
1512 for(i=0; i<srcSliceH; i++)
1513 {
1514 memcpy(dstPtr, srcPtr, srcStride[0]);
1515 srcPtr+= srcStride[0];
1516 dstPtr+= dstStride[0];
1517 }
1518 }
1519 dst = dstParam[1] + dstStride[1]*srcSliceY;
1520 if(c->srcFormat==IMGFMT_YV12)
1521 interleaveBytes( src[1],src[2],dst,c->srcW,srcSliceH,srcStride[1],srcStride[2],dstStride[0] );
1522 else /* I420 & IYUV */
1523 interleaveBytes( src[2],src[1],dst,c->srcW,srcSliceH,srcStride[2],srcStride[1],dstStride[0] );
1524}
1525
1526
37079906
MN
1527/* Warper functions for yuv2bgr */
1528static void planarYuvToBgr(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
b6654a54
MN
1529 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1530 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
37079906
MN
1531
1532 if(c->srcFormat==IMGFMT_YV12)
b6654a54 1533 yuv2rgb( dst,src[0],src[1],src[2],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
37079906 1534 else /* I420 & IYUV */
b6654a54
MN
1535 yuv2rgb( dst,src[0],src[2],src[1],c->srcW,srcSliceH,dstStride[0],srcStride[0],srcStride[1] );
1536}
1537
44c1035c 1538static void PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
0d9f3d85
A
1539 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1540 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1541
1542 if(c->srcFormat==IMGFMT_YV12)
1543 yv12toyuy2( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
1544 else /* I420 & IYUV */
1545 yv12toyuy2( src[0],src[2],src[1],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
1546}
1547
b935781b
MN
1548static void bgr24to32Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1549 int srcSliceH, uint8_t* dst[], int dstStride[]){
1550
1551 if(dstStride[0]*3==srcStride[0]*4)
4bb3fa5e 1552 rgb24to32(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
b935781b
MN
1553 else
1554 {
1555 int i;
1556 uint8_t *srcPtr= src[0];
1557 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1558
1559 for(i=0; i<srcSliceH; i++)
1560 {
4bb3fa5e 1561 rgb24to32(srcPtr, dstPtr, c->srcW*3);
b935781b
MN
1562 srcPtr+= srcStride[0];
1563 dstPtr+= dstStride[0];
1564 }
1565 }
1566}
1567
0d9f3d85
A
1568static void bgr24to16Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1569 int srcSliceH, uint8_t* dst[], int dstStride[]){
1570
1571 if(dstStride[0]*3==srcStride[0]*2)
1572 rgb24to16(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1573 else
1574 {
1575 int i;
1576 uint8_t *srcPtr= src[0];
1577 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1578
1579 for(i=0; i<srcSliceH; i++)
1580 {
1581 rgb24to16(srcPtr, dstPtr, c->srcW*3);
1582 srcPtr+= srcStride[0];
1583 dstPtr+= dstStride[0];
1584 }
1585 }
1586}
1587
1588static void bgr24to15Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1589 int srcSliceH, uint8_t* dst[], int dstStride[]){
1590
1591 if(dstStride[0]*3==srcStride[0]*2)
1592 rgb24to15(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1593 else
1594 {
1595 int i;
1596 uint8_t *srcPtr= src[0];
1597 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1598
1599 for(i=0; i<srcSliceH; i++)
1600 {
1601 rgb24to15(srcPtr, dstPtr, c->srcW*3);
1602 srcPtr+= srcStride[0];
1603 dstPtr+= dstStride[0];
1604 }
1605 }
1606}
1607
b935781b
MN
1608static void bgr32to24Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1609 int srcSliceH, uint8_t* dst[], int dstStride[]){
1610
1611 if(dstStride[0]*4==srcStride[0]*3)
4bb3fa5e 1612 rgb32to24(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
b935781b
MN
1613 else
1614 {
1615 int i;
1616 uint8_t *srcPtr= src[0];
1617 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1618
1619 for(i=0; i<srcSliceH; i++)
1620 {
4bb3fa5e
MN
1621 rgb32to24(srcPtr, dstPtr, c->srcW<<2);
1622 srcPtr+= srcStride[0];
1623 dstPtr+= dstStride[0];
1624 }
1625 }
1626}
1627
0d9f3d85
A
1628static void bgr32to16Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1629 int srcSliceH, uint8_t* dst[], int dstStride[]){
1630
1631 if(dstStride[0]*4==srcStride[0]*2)
1632 rgb32to16(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1633 else
1634 {
1635 int i;
1636 uint8_t *srcPtr= src[0];
1637 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1638
1639 for(i=0; i<srcSliceH; i++)
1640 {
1641 rgb32to16(srcPtr, dstPtr, c->srcW<<2);
1642 srcPtr+= srcStride[0];
1643 dstPtr+= dstStride[0];
1644 }
1645 }
1646}
1647
1648static void bgr32to15Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1649 int srcSliceH, uint8_t* dst[], int dstStride[]){
1650
1651 if(dstStride[0]*4==srcStride[0]*2)
1652 rgb32to15(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1653 else
1654 {
1655 int i;
1656 uint8_t *srcPtr= src[0];
1657 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1658
1659 for(i=0; i<srcSliceH; i++)
1660 {
1661 rgb32to15(srcPtr, dstPtr, c->srcW<<2);
1662 srcPtr+= srcStride[0];
1663 dstPtr+= dstStride[0];
1664 }
1665 }
1666}
1667
4bb3fa5e
MN
1668static void bgr15to16Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1669 int srcSliceH, uint8_t* dst[], int dstStride[]){
1670
1671 if(dstStride[0]==srcStride[0])
1672 rgb15to16(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1673 else
1674 {
1675 int i;
1676 uint8_t *srcPtr= src[0];
1677 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1678
1679 for(i=0; i<srcSliceH; i++)
1680 {
1681 rgb15to16(srcPtr, dstPtr, c->srcW<<1);
b935781b
MN
1682 srcPtr+= srcStride[0];
1683 dstPtr+= dstStride[0];
1684 }
1685 }
1686}
1687
0d9f3d85
A
1688static void bgr15to24Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1689 int srcSliceH, uint8_t* dst[], int dstStride[]){
1690
1691 if(dstStride[0]*2==srcStride[0]*3)
1692 rgb15to24(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1693 else
1694 {
1695 int i;
1696 uint8_t *srcPtr= src[0];
1697 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1698
1699 for(i=0; i<srcSliceH; i++)
1700 {
1701 rgb15to24(srcPtr, dstPtr, c->srcW<<1);
1702 srcPtr+= srcStride[0];
1703 dstPtr+= dstStride[0];
1704 }
1705 }
1706}
1707
1708static void bgr15to32Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1709 int srcSliceH, uint8_t* dst[], int dstStride[]){
1710
1711 if(dstStride[0]*2==srcStride[0]*4)
1712 rgb15to32(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1713 else
1714 {
1715 int i;
1716 uint8_t *srcPtr= src[0];
1717 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1718
1719 for(i=0; i<srcSliceH; i++)
1720 {
1721 rgb15to32(srcPtr, dstPtr, c->srcW<<1);
1722 srcPtr+= srcStride[0];
1723 dstPtr+= dstStride[0];
1724 }
1725 }
1726}
1727
1728static void bgr16to24Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1729 int srcSliceH, uint8_t* dst[], int dstStride[]){
1730
1731 if(dstStride[0]*2==srcStride[0]*3)
1732 rgb16to24(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1733 else
1734 {
1735 int i;
1736 uint8_t *srcPtr= src[0];
1737 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1738
1739 for(i=0; i<srcSliceH; i++)
1740 {
1741 rgb16to24(srcPtr, dstPtr, c->srcW<<1);
1742 srcPtr+= srcStride[0];
1743 dstPtr+= dstStride[0];
1744 }
1745 }
1746}
1747
1748static void bgr16to32Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1749 int srcSliceH, uint8_t* dst[], int dstStride[]){
1750
1751 if(dstStride[0]*2==srcStride[0]*4)
1752 rgb16to32(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
1753 else
1754 {
1755 int i;
1756 uint8_t *srcPtr= src[0];
1757 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1758
1759 for(i=0; i<srcSliceH; i++)
1760 {
1761 rgb16to32(srcPtr, dstPtr, c->srcW<<1);
1762 srcPtr+= srcStride[0];
1763 dstPtr+= dstStride[0];
1764 }
1765 }
1766}
1767
ec22603f
MN
1768static void bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1769 int srcSliceH, uint8_t* dst[], int dstStride[]){
1770
1771 rgb24toyv12(
1772 src[0],
1773 dst[0]+ srcSliceY *dstStride[0],
1774 dst[1]+(srcSliceY>>1)*dstStride[1],
1775 dst[2]+(srcSliceY>>1)*dstStride[2],
1776 c->srcW, srcSliceH,
1777 dstStride[0], dstStride[1], srcStride[0]);
1778}
1779
44c1035c
MN
1780/**
1781 * bring pointers in YUV order instead of YVU
1782 */
c7a810cc 1783static inline void orderYUV(int format, uint8_t * sortedP[], int sortedStride[], uint8_t * p[], int stride[]){
e616aa93 1784 if(format == IMGFMT_YV12 || format == IMGFMT_YVU9){
44c1035c
MN
1785 sortedP[0]= p[0];
1786 sortedP[1]= p[1];
1787 sortedP[2]= p[2];
c7a810cc
MN
1788 sortedStride[0]= stride[0];
1789 sortedStride[1]= stride[1];
1790 sortedStride[2]= stride[2];
44c1035c 1791 }
c7a810cc 1792 else if(isPacked(format) || isGray(format))
44c1035c
MN
1793 {
1794 sortedP[0]= p[0];
1795 sortedP[1]=
1796 sortedP[2]= NULL;
c7a810cc 1797 sortedStride[0]= stride[0];
44c1035c
MN
1798 sortedStride[1]=
1799 sortedStride[2]= 0;
1800 }
1801 else /* I420 */
1802 {
1803 sortedP[0]= p[0];
1804 sortedP[1]= p[2];
1805 sortedP[2]= p[1];
c7a810cc
MN
1806 sortedStride[0]= stride[0];
1807 sortedStride[1]= stride[2];
1808 sortedStride[2]= stride[1];
44c1035c
MN
1809 }
1810}
b935781b 1811
b6654a54
MN
1812/* unscaled copy like stuff (assumes nearly identical formats) */
1813static void simpleCopy(SwsContext *c, uint8_t* srcParam[], int srcStrideParam[], int srcSliceY,
44c1035c 1814 int srcSliceH, uint8_t* dstParam[], int dstStrideParam[]){
b6654a54
MN
1815
1816 int srcStride[3];
44c1035c 1817 int dstStride[3];
b6654a54
MN
1818 uint8_t *src[3];
1819 uint8_t *dst[3];
1820
c7a810cc
MN
1821 orderYUV(c->srcFormat, src, srcStride, srcParam, srcStrideParam);
1822 orderYUV(c->dstFormat, dst, dstStride, dstParam, dstStrideParam);
b6654a54
MN
1823
1824 if(isPacked(c->srcFormat))
1825 {
1826 if(dstStride[0]==srcStride[0])
1827 memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
1828 else
1829 {
1830 int i;
1831 uint8_t *srcPtr= src[0];
1832 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
a861d4d7
MN
1833 int length=0;
1834
1835 /* universal length finder */
9bd8bd1a
MN
1836 while(length+c->srcW <= ABS(dstStride[0])
1837 && length+c->srcW <= ABS(srcStride[0])) length+= c->srcW;
a861d4d7 1838 ASSERT(length!=0);
b6654a54
MN
1839
1840 for(i=0; i<srcSliceH; i++)
1841 {
1842 memcpy(dstPtr, srcPtr, length);
1843 srcPtr+= srcStride[0];
1844 dstPtr+= dstStride[0];
1845 }
1846 }
1847 }
1848 else
44c1035c 1849 { /* Planar YUV or gray */
b6654a54
MN
1850 int plane;
1851 for(plane=0; plane<3; plane++)
1852 {
e616aa93
MN
1853 int length= plane==0 ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
1854 int y= plane==0 ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
1855 int height= plane==0 ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
44c1035c
MN
1856
1857 if((isGray(c->srcFormat) || isGray(c->dstFormat)) && plane>0)
0d9f3d85 1858 {
44c1035c 1859 if(!isGray(c->dstFormat))
e616aa93 1860 memset(dst[plane], 128, dstStride[plane]*height);
0d9f3d85 1861 }
b6654a54
MN
1862 else
1863 {
44c1035c
MN
1864 if(dstStride[plane]==srcStride[plane])
1865 memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
1866 else
b6654a54 1867 {
44c1035c
MN
1868 int i;
1869 uint8_t *srcPtr= src[plane];
1870 uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
1871 for(i=0; i<height; i++)
1872 {
1873 memcpy(dstPtr, srcPtr, length);
1874 srcPtr+= srcStride[plane];
1875 dstPtr+= dstStride[plane];
1876 }
b6654a54
MN
1877 }
1878 }
1879 }
1880 }
37079906 1881}
28bf81c9 1882
44c1035c 1883static int remove_dup_fourcc(int fourcc)
0d9f3d85
A
1884{
1885 switch(fourcc)
1886 {
1887 case IMGFMT_IYUV: return IMGFMT_I420;
1888 case IMGFMT_Y8 : return IMGFMT_Y800;
0c51ef97 1889 case IMGFMT_IF09: return IMGFMT_YVU9;
0d9f3d85
A
1890 default: return fourcc;
1891 }
1892}
1893
c7a810cc
MN
1894static void getSubSampleFactors(int *h, int *v, int format){
1895 switch(format){
1896 case IMGFMT_YUY2:
1897 *h=1;
1898 *v=0;
1899 break;
1900 case IMGFMT_YV12:
1901 case IMGFMT_I420:
e616aa93 1902 case IMGFMT_Y800: //FIXME remove after different subsamplings are fully implemented
c7a810cc
MN
1903 *h=1;
1904 *v=1;
1905 break;
1906 case IMGFMT_YVU9:
1907 *h=2;
1908 *v=2;
1909 break;
1910 default:
1911 *h=0;
1912 *v=0;
1913 break;
1914 }
1915}
1916
28bf81c9
MN
1917SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
1918 SwsFilter *srcFilter, SwsFilter *dstFilter){
1919
28bf81c9
MN
1920 SwsContext *c;
1921 int i;
37079906 1922 int usesFilter;
44c1035c 1923 int unscaled;
c7f822d9 1924 SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
5cebb24b
MN
1925#ifdef ARCH_X86
1926 if(gCpuCaps.hasMMX)
1927 asm volatile("emms\n\t"::: "memory");
1928#endif
28bf81c9 1929 if(swScale==NULL) globalInit();
e616aa93
MN
1930//srcFormat= IMGFMT_Y800;
1931//srcFormat= IMGFMT_YVU9;
6ff0ad6b 1932 /* avoid dupplicate Formats, so we dont need to check to much */
0d9f3d85
A
1933 srcFormat = remove_dup_fourcc(srcFormat);
1934 dstFormat = remove_dup_fourcc(dstFormat);
44c1035c
MN
1935
1936 unscaled = (srcW == dstW && srcH == dstH);
1937
1938 if(!isSupportedIn(srcFormat))
b81cf274 1939 {
44c1035c
MN
1940 MSG_ERR("swScaler: %s is not supported as input format\n", vo_format_name(srcFormat));
1941 return NULL;
1942 }
1943 if(!isSupportedOut(dstFormat))
1944 {
1945 MSG_ERR("swScaler: %s is not supported as output format\n", vo_format_name(dstFormat));
1946 return NULL;
b81cf274 1947 }
44c1035c 1948
28bf81c9 1949 /* sanity check */
b81cf274
MN
1950 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
1951 {
0d9f3d85 1952 MSG_ERR("swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
b81cf274
MN
1953 srcW, srcH, dstW, dstH);
1954 return NULL;
1955 }
28bf81c9 1956
c7f822d9
MN
1957 if(!dstFilter) dstFilter= &dummyFilter;
1958 if(!srcFilter) srcFilter= &dummyFilter;
1959
28bf81c9 1960 c= memalign(64, sizeof(SwsContext));
c7f822d9 1961 memset(c, 0, sizeof(SwsContext));
28bf81c9
MN
1962
1963 c->srcW= srcW;
1964 c->srcH= srcH;
1965 c->dstW= dstW;
1966 c->dstH= dstH;
5521b193
MN
1967 c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW;
1968 c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH;
28bf81c9
MN
1969 c->flags= flags;
1970 c->dstFormat= dstFormat;
1971 c->srcFormat= srcFormat;
1972
37079906
MN
1973 usesFilter=0;
1974 if(dstFilter->lumV!=NULL && dstFilter->lumV->length>1) usesFilter=1;
1975 if(dstFilter->lumH!=NULL && dstFilter->lumH->length>1) usesFilter=1;
1976 if(dstFilter->chrV!=NULL && dstFilter->chrV->length>1) usesFilter=1;
1977 if(dstFilter->chrH!=NULL && dstFilter->chrH->length>1) usesFilter=1;
1978 if(srcFilter->lumV!=NULL && srcFilter->lumV->length>1) usesFilter=1;
1979 if(srcFilter->lumH!=NULL && srcFilter->lumH->length>1) usesFilter=1;
1980 if(srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesFilter=1;
1981 if(srcFilter->chrH!=NULL && srcFilter->chrH->length>1) usesFilter=1;
e616aa93
MN
1982
1983 getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
1984 getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
1985
1986 // reuse chroma for 2 pixles rgb/bgr unless user wants full chroma interpolation
1987 if((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
1988
5859233b
MN
1989 // drop some chroma lines if the user wants it
1990 c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
1991 c->chrSrcVSubSample+= c->vChrDrop;
e616aa93 1992
5859233b 1993 // drop every 2. pixel for chroma calculation unless user wants full chroma
e616aa93
MN
1994 if((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP))
1995 c->chrSrcHSubSample=1;
1996
1997 c->chrIntHSubSample= c->chrDstHSubSample;
1998 c->chrIntVSubSample= c->chrSrcVSubSample;
1999
2000 // note the -((-x)>>y) is so that we allways round toward +inf
2001 c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
2002 c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
2003 c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
2004 c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
37079906 2005
cf7d1c1a
MN
2006 if(isBGR(dstFormat))
2007 c->yuvTable= yuv2rgb_c_init(dstFormat & 0xFF, MODE_RGB, c->table_rV, c->table_gU, c->table_gV, c->table_bU);
2008 if(isRGB(dstFormat))
2009 c->yuvTable= yuv2rgb_c_init(dstFormat & 0xFF, MODE_BGR, c->table_rV, c->table_gU, c->table_gV, c->table_bU);
2010
b935781b 2011 /* unscaled special Cases */
44c1035c 2012 if(unscaled && !usesFilter)
37079906 2013 {
0d9f3d85
A
2014 /* yv12_to_nv12 */
2015 if((srcFormat == IMGFMT_YV12||srcFormat==IMGFMT_I420)&&dstFormat == IMGFMT_NV12)
2016 {
2017 c->swScale= PlanarToNV12Wrapper;
2018
2019 if(flags&SWS_PRINT_INFO)
2020 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2021 vo_format_name(srcFormat), vo_format_name(dstFormat));
2022 return c;
2023 }
2024 /* yv12_to_yuy2 */
2025 if((srcFormat == IMGFMT_YV12||srcFormat==IMGFMT_I420)&&dstFormat == IMGFMT_YUY2)
2026 {
44c1035c 2027 c->swScale= PlanarToYuy2Wrapper;
0d9f3d85
A
2028
2029 if(flags&SWS_PRINT_INFO)
2030 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2031 vo_format_name(srcFormat), vo_format_name(dstFormat));
2032 return c;
2033 }
37079906 2034 /* yuv2bgr */
e616aa93 2035 if((srcFormat==IMGFMT_YV12 || srcFormat==IMGFMT_I420) && isBGR(dstFormat))
37079906
MN
2036 {
2037 // FIXME multiple yuv2rgb converters wont work that way cuz that thing is full of globals&statics
cf7d1c1a 2038 //FIXME rgb vs. bgr ?
1e1c4fe9 2039#ifdef WORDS_BIGENDIAN
daa57641
MN
2040 if(dstFormat==IMGFMT_BGR32)
2041 yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_BGR);
2042 else
2043 yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_RGB);
1e1c4fe9 2044#else
b6654a54 2045 yuv2rgb_init( dstFormat&0xFF /* =bpp */, MODE_RGB);
1e1c4fe9 2046#endif
37079906 2047 c->swScale= planarYuvToBgr;
b6654a54
MN
2048
2049 if(flags&SWS_PRINT_INFO)
0d9f3d85 2050 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
b6654a54
MN
2051 vo_format_name(srcFormat), vo_format_name(dstFormat));
2052 return c;
2053 }
e616aa93 2054#if 1
b6654a54 2055 /* simple copy */
e616aa93
MN
2056 if( srcFormat == dstFormat
2057 || (srcFormat==IMGFMT_YV12 && dstFormat==IMGFMT_I420)
2058 || (srcFormat==IMGFMT_I420 && dstFormat==IMGFMT_YV12)
2059 || (isPlanarYUV(srcFormat) && isGray(dstFormat))
2060 || (isPlanarYUV(dstFormat) && isGray(srcFormat))
2061 )
b6654a54
MN
2062 {
2063 c->swScale= simpleCopy;
2064
37079906 2065 if(flags&SWS_PRINT_INFO)
0d9f3d85 2066 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
37079906
MN
2067 vo_format_name(srcFormat), vo_format_name(dstFormat));
2068 return c;
2069 }
e616aa93 2070#endif
b935781b
MN
2071 /* bgr32to24 & rgb32to24*/
2072 if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR24)
2073 ||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB24))
2074 {
2075 c->swScale= bgr32to24Wrapper;
2076
2077 if(flags&SWS_PRINT_INFO)
0d9f3d85
A
2078 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2079 vo_format_name(srcFormat), vo_format_name(dstFormat));
2080 return c;
2081 }
2082
2083 /* bgr32to16 & rgb32to16*/
2084 if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR16)
2085 ||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB16))
2086 {
2087 c->swScale= bgr32to16Wrapper;
2088
2089 if(flags&SWS_PRINT_INFO)
2090 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2091 vo_format_name(srcFormat), vo_format_name(dstFormat));
2092 return c;
2093 }
2094
2095 /* bgr32to15 & rgb32to15*/
2096 if((srcFormat==IMGFMT_BGR32 && dstFormat==IMGFMT_BGR15)
2097 ||(srcFormat==IMGFMT_RGB32 && dstFormat==IMGFMT_RGB15))
2098 {
2099 c->swScale= bgr32to15Wrapper;
2100
2101 if(flags&SWS_PRINT_INFO)
2102 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
b935781b
MN
2103 vo_format_name(srcFormat), vo_format_name(dstFormat));
2104 return c;
2105 }
e616aa93 2106
b935781b
MN
2107 /* bgr24to32 & rgb24to32*/
2108 if((srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_BGR32)
2109 ||(srcFormat==IMGFMT_RGB24 && dstFormat==IMGFMT_RGB32))
2110 {
2111 c->swScale= bgr24to32Wrapper;
2112
2113 if(flags&SWS_PRINT_INFO)
0d9f3d85
A
2114 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2115 vo_format_name(srcFormat), vo_format_name(dstFormat));
2116 return c;
2117 }
2118
2119 /* bgr24to16 & rgb24to16*/
2120 if((srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_BGR16)
2121 ||(srcFormat==IMGFMT_RGB24 && dstFormat==IMGFMT_RGB16))
2122 {
2123 c->swScale= bgr24to16Wrapper;
2124
2125 if(flags&SWS_PRINT_INFO)
2126 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2127 vo_format_name(srcFormat), vo_format_name(dstFormat));
2128 return c;
2129 }
2130
2131 /* bgr24to15 & rgb24to15*/
2132 if((srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_BGR15)
2133 ||(srcFormat==IMGFMT_RGB24 && dstFormat==IMGFMT_RGB15))
2134 {
2135 c->swScale= bgr24to15Wrapper;
2136
2137 if(flags&SWS_PRINT_INFO)
2138 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
b935781b
MN
2139 vo_format_name(srcFormat), vo_format_name(dstFormat));
2140 return c;
2141 }
4bb3fa5e
MN
2142
2143 /* bgr15to16 */
2144 if(srcFormat==IMGFMT_BGR15 && dstFormat==IMGFMT_BGR16)
2145 {
2146 c->swScale= bgr15to16Wrapper;
2147
2148 if(flags&SWS_PRINT_INFO)
0d9f3d85
A
2149 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2150 vo_format_name(srcFormat), vo_format_name(dstFormat));
2151 return c;
2152 }
2153
2154 /* bgr15to24 */
2155 if((srcFormat==IMGFMT_BGR15 && dstFormat==IMGFMT_BGR24)
2156 ||(srcFormat==IMGFMT_RGB15 && dstFormat==IMGFMT_RGB24))
2157 {
2158 c->swScale= bgr15to24Wrapper;
2159
2160 if(flags&SWS_PRINT_INFO)
2161 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2162 vo_format_name(srcFormat), vo_format_name(dstFormat));
2163 return c;
2164 }
2165
e616aa93 2166#if 0 //segfaults
0d9f3d85
A
2167 /* bgr15to32 */
2168 if((srcFormat==IMGFMT_BGR15 && dstFormat==IMGFMT_BGR32)
2169 ||(srcFormat==IMGFMT_RGB15 && dstFormat==IMGFMT_RGB32))
2170 {
2171 c->swScale= bgr15to32Wrapper;
2172
2173 if(flags&SWS_PRINT_INFO)
2174 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2175 vo_format_name(srcFormat), vo_format_name(dstFormat));
2176 return c;
2177 }
e616aa93 2178#endif
0d9f3d85
A
2179 /* bgr16to24 */
2180 if((srcFormat==IMGFMT_BGR16 && dstFormat==IMGFMT_BGR24)
2181 ||(srcFormat==IMGFMT_RGB16 && dstFormat==IMGFMT_RGB24))
2182 {
2183 c->swScale= bgr16to24Wrapper;
2184
2185 if(flags&SWS_PRINT_INFO)
2186 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
2187 vo_format_name(srcFormat), vo_format_name(dstFormat));
2188 return c;
2189 }
2190
e616aa93 2191#if 0 //segfaults
0d9f3d85
A
2192 /* bgr16to32 */
2193 if((srcFormat==IMGFMT_BGR16 && dstFormat==IMGFMT_BGR32)
2194 ||(srcFormat==IMGFMT_RGB16 && dstFormat==IMGFMT_RGB32))
2195 {
2196 c->swScale= bgr16to32Wrapper;
2197
2198 if(flags&SWS_PRINT_INFO)
2199 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
4bb3fa5e
MN
2200 vo_format_name(srcFormat), vo_format_name(dstFormat));
2201 return c;
2202 }
e616aa93 2203#endif
ec22603f
MN
2204 /* bgr24toYV12 */
2205 if(srcFormat==IMGFMT_BGR24 && dstFormat==IMGFMT_YV12)
2206 {
2207 c->swScale= bgr24toyv12Wrapper;
2208
2209 if(flags&SWS_PRINT_INFO)
0d9f3d85 2210 MSG_INFO("SwScaler: using unscaled %s -> %s special converter\n",
ec22603f
MN
2211 vo_format_name(srcFormat), vo_format_name(dstFormat));
2212 return c;
2213 }
37079906
MN
2214 }
2215
28bf81c9
MN
2216 if(cpuCaps.hasMMX2)
2217 {
2218 c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
2219 if(!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR))
2220 {
2221 if(flags&SWS_PRINT_INFO)
0d9f3d85 2222 MSG_INFO("SwScaler: output Width is not a multiple of 32 -> no MMX2 scaler\n");
28bf81c9
MN
2223 }
2224 }
2225 else
2226 c->canMMX2BeUsed=0;
2227
1e621b18
MN
2228 c->chrXInc= ((c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
2229 c->chrYInc= ((c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
2230
28bf81c9
MN
2231 // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
2232 // but only for the FAST_BILINEAR mode otherwise do correct scaling
2233 // n-2 is the last chrominance sample available
2234 // this is not perfect, but noone shuld notice the difference, the more correct variant
2235 // would be like the vertical one, but that would require some special code for the
2236 // first and last pixel
2237 if(flags&SWS_FAST_BILINEAR)
2238 {
1e621b18
MN
2239 if(c->canMMX2BeUsed)
2240 {
2241 c->lumXInc+= 20;
2242 c->chrXInc+= 20;
2243 }
28bf81c9 2244 //we dont use the x86asm scaler if mmx is available
1e621b18
MN
2245 else if(cpuCaps.hasMMX)
2246 {
2247 c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
2248 c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
2249 }
28bf81c9
MN
2250 }
2251
28bf81c9
MN
2252 /* precalculate horizontal scaler filter coefficients */
2253 {
2254 const int filterAlign= cpuCaps.hasMMX ? 4 : 1;
2255
c7f822d9 2256 initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
81a571a8
MN
2257 srcW , dstW, filterAlign, 1<<14,
2258 (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
c7f822d9
MN
2259 srcFilter->lumH, dstFilter->lumH);
2260 initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
81a571a8
MN
2261 c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
2262 (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
c7f822d9 2263 srcFilter->chrH, dstFilter->chrH);
28bf81c9
MN
2264
2265#ifdef ARCH_X86
2266// cant downscale !!!
2267 if(c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
2268 {
b7dc6f66
MN
2269 c->lumMmx2Filter = (int16_t*)memalign(8, (dstW /8+8)*sizeof(int16_t));
2270 c->chrMmx2Filter = (int16_t*)memalign(8, (c->chrDstW /4+8)*sizeof(int16_t));
2271 c->lumMmx2FilterPos= (int32_t*)memalign(8, (dstW /2/8+8)*sizeof(int32_t));
2272 c->chrMmx2FilterPos= (int32_t*)memalign(8, (c->chrDstW/2/4+8)*sizeof(int32_t));
2273
2274 initMMX2HScaler( dstW, c->lumXInc, c->funnyYCode , c->lumMmx2Filter, c->lumMmx2FilterPos, 8);
2275 initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
28bf81c9
MN
2276 }
2277#endif
2278 } // Init Horizontal stuff
2279
2280
2281
2282 /* precalculate vertical scaler filter coefficients */
c7f822d9 2283 initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
81a571a8
MN
2284 srcH , dstH, 1, (1<<12)-4,
2285 (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
c7f822d9
MN
2286 srcFilter->lumV, dstFilter->lumV);
2287 initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
81a571a8
MN
2288 c->chrSrcH, c->chrDstH, 1, (1<<12)-4,
2289 (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
2290 srcFilter->chrV, dstFilter->chrV);
28bf81c9
MN
2291
2292 // Calculate Buffer Sizes so that they wont run out while handling these damn slices
2293 c->vLumBufSize= c->vLumFilterSize;
2294 c->vChrBufSize= c->vChrFilterSize;
2295 for(i=0; i<dstH; i++)
2296 {
2297 int chrI= i*c->chrDstH / dstH;
2298 int nextSlice= MAX(c->vLumFilterPos[i ] + c->vLumFilterSize - 1,
e616aa93
MN
2299 ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
2300 nextSlice&= ~3; // Slices start at boundaries which are divisable through 4
28bf81c9
MN
2301 if(c->vLumFilterPos[i ] + c->vLumBufSize < nextSlice)
2302 c->vLumBufSize= nextSlice - c->vLumFilterPos[i ];
e616aa93
MN
2303 if(c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
2304 c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
28bf81c9
MN
2305 }
2306
2307 // allocate pixbufs (we use dynamic allocation because otherwise we would need to
c7f822d9
MN
2308 c->lumPixBuf= (int16_t**)memalign(4, c->vLumBufSize*2*sizeof(int16_t*));
2309 c->chrPixBuf= (int16_t**)memalign(4, c->vChrBufSize*2*sizeof(int16_t*));
6c7506de 2310 //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)
28bf81c9
MN
2311 for(i=0; i<c->vLumBufSize; i++)
2312 c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= (uint16_t*)memalign(8, 4000);
2313 for(i=0; i<c->vChrBufSize; i++)
2314 c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= (uint16_t*)memalign(8, 8000);
2315
2316 //try to avoid drawing green stuff between the right end and the stride end
2317 for(i=0; i<c->vLumBufSize; i++) memset(c->lumPixBuf[i], 0, 4000);
2318 for(i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, 8000);
2319
2320 ASSERT(c->chrDstH <= dstH)
28bf81c9
MN
2321
2322 // pack filter data for mmx code
2323 if(cpuCaps.hasMMX)
2324 {
c7f822d9
MN
2325 c->lumMmxFilter= (int16_t*)memalign(8, c->vLumFilterSize* dstH*4*sizeof(int16_t));
2326 c->chrMmxFilter= (int16_t*)memalign(8, c->vChrFilterSize*c->chrDstH*4*sizeof(int16_t));
28bf81c9
MN
2327 for(i=0; i<c->vLumFilterSize*dstH; i++)
2328 c->lumMmxFilter[4*i]=c->lumMmxFilter[4*i+1]=c->lumMmxFilter[4*i+2]=c->lumMmxFilter[4*i+3]=
2329 c->vLumFilter[i];
2330 for(i=0; i<c->vChrFilterSize*c->chrDstH; i++)
2331 c->chrMmxFilter[4*i]=c->chrMmxFilter[4*i+1]=c->chrMmxFilter[4*i+2]=c->chrMmxFilter[4*i+3]=
2332 c->vChrFilter[i];
2333 }
2334
2335 if(flags&SWS_PRINT_INFO)
2336 {
2337#ifdef DITHER1XBPP
5521b193
MN
2338 char *dither= " dithered";
2339#else
2340 char *dither= "";
28bf81c9
MN
2341#endif
2342 if(flags&SWS_FAST_BILINEAR)
0d9f3d85 2343 MSG_INFO("\nSwScaler: FAST_BILINEAR scaler, ");
28bf81c9 2344 else if(flags&SWS_BILINEAR)
0d9f3d85 2345 MSG_INFO("\nSwScaler: BILINEAR scaler, ");
28bf81c9 2346 else if(flags&SWS_BICUBIC)
0d9f3d85 2347 MSG_INFO("\nSwScaler: BICUBIC scaler, ");
1e621b18 2348 else if(flags&SWS_X)
0d9f3d85 2349 MSG_INFO("\nSwScaler: Experimental scaler, ");
ff7ba856 2350 else if(flags&SWS_POINT)
0d9f3d85 2351 MSG_INFO("\nSwScaler: Nearest Neighbor / POINT scaler, ");
d8863d37 2352 else if(flags&SWS_AREA)
0d9f3d85 2353 MSG_INFO("\nSwScaler: Area Averageing scaler, ");
81a571a8
MN
2354 else if(flags&SWS_BICUBLIN)
2355 MSG_INFO("\nSwScaler: luma BICUBIC / chroma BILINEAR, ");
28bf81c9 2356 else
0d9f3d85 2357 MSG_INFO("\nSwScaler: ehh flags invalid?! ");
28bf81c9 2358
0d9f3d85
A
2359 if(dstFormat==IMGFMT_BGR15 || dstFormat==IMGFMT_BGR16)
2360 MSG_INFO("from %s to%s %s ",
2361 vo_format_name(srcFormat), dither, vo_format_name(dstFormat));
2362 else
2363 MSG_INFO("from %s to %s ",
2364 vo_format_name(srcFormat), vo_format_name(dstFormat));
28bf81c9
MN
2365
2366 if(cpuCaps.hasMMX2)
0d9f3d85 2367 MSG_INFO("using MMX2\n");
28bf81c9 2368 else if(cpuCaps.has3DNow)
0d9f3d85 2369 MSG_INFO("using 3DNOW\n");
28bf81c9 2370 else if(cpuCaps.hasMMX)
0d9f3d85 2371 MSG_INFO("using MMX\n");
28bf81c9 2372 else
0d9f3d85 2373 MSG_INFO("using C\n");
28bf81c9
MN
2374 }
2375
2376 if((flags & SWS_PRINT_INFO) && verbose)
2377 {
2378 if(cpuCaps.hasMMX)
2379 {
2380 if(c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
0d9f3d85 2381 MSG_V("SwScaler: using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
28bf81c9
MN
2382 else
2383 {
2384 if(c->hLumFilterSize==4)
0d9f3d85 2385 MSG_V("SwScaler: using 4-tap MMX scaler for horizontal luminance scaling\n");
28bf81c9 2386 else if(c->hLumFilterSize==8)
0d9f3d85 2387 MSG_V("SwScaler: using 8-tap MMX scaler for horizontal luminance scaling\n");
28bf81c9 2388 else
0d9f3d85 2389 MSG_V("SwScaler: using n-tap MMX scaler for horizontal luminance scaling\n");
28bf81c9
MN
2390
2391 if(c->hChrFilterSize==4)
0d9f3d85 2392 MSG_V("SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling\n");
28bf81c9 2393 else if(c->hChrFilterSize==8)
0d9f3d85 2394 MSG_V("SwScaler: using 8-tap MMX scaler for horizontal chrominance scaling\n");
28bf81c9 2395 else
0d9f3d85 2396 MSG_V("SwScaler: using n-tap MMX scaler for horizontal chrominance scaling\n");
28bf81c9
MN
2397 }
2398 }
2399 else
2400 {
2401#ifdef ARCH_X86
0d9f3d85 2402 MSG_V("SwScaler: using X86-Asm scaler for horizontal scaling\n");
28bf81c9
MN
2403#else
2404 if(flags & SWS_FAST_BILINEAR)
0d9f3d85 2405 MSG_V("SwScaler: using FAST_BILINEAR C scaler for horizontal scaling\n");
28bf81c9 2406 else
0d9f3d85 2407 MSG_V("SwScaler: using C scaler for horizontal scaling\n");
28bf81c9
MN
2408#endif
2409 }
6c7506de 2410 if(isPlanarYUV(dstFormat))
28bf81c9
MN
2411 {
2412 if(c->vLumFilterSize==1)
0d9f3d85 2413 MSG_V("SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", cpuCaps.hasMMX ? "MMX" : "C");
28bf81c9 2414 else
0d9f3d85 2415 MSG_V("SwScaler: using n-tap %s scaler for vertical scaling (YV12 like)\n", cpuCaps.hasMMX ? "MMX" : "C");
28bf81c9
MN
2416 }
2417 else
2418 {
2419 if(c->vLumFilterSize==1 && c->vChrFilterSize==2)
0d9f3d85 2420 MSG_V("SwScaler: using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
28bf81c9
MN
2421 "SwScaler: 2-tap scaler for vertical chrominance scaling (BGR)\n",cpuCaps.hasMMX ? "MMX" : "C");
2422 else if(c->vLumFilterSize==2 && c->vChrFilterSize==2)
0d9f3d85 2423 MSG_V("SwScaler: using 2-tap linear %s scaler for vertical scaling (BGR)\n", cpuCaps.hasMMX ? "MMX" : "C");
28bf81c9 2424 else
0d9f3d85 2425 MSG_V("SwScaler: using n-tap %s scaler for vertical scaling (BGR)\n", cpuCaps.hasMMX ? "MMX" : "C");
28bf81c9
MN
2426 }
2427
2428 if(dstFormat==IMGFMT_BGR24)
0d9f3d85 2429 MSG_V("SwScaler: using %s YV12->BGR24 Converter\n",
28bf81c9 2430 cpuCaps.hasMMX2 ? "MMX2" : (cpuCaps.hasMMX ? "MMX" : "C"));
fd284805 2431 else if(dstFormat==IMGFMT_BGR32)
0d9f3d85 2432 MSG_V("SwScaler: using %s YV12->BGR32 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
fd284805 2433 else if(dstFormat==IMGFMT_BGR16)
0d9f3d85 2434 MSG_V("SwScaler: using %s YV12->BGR16 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
fd284805 2435 else if(dstFormat==IMGFMT_BGR15)
0d9f3d85 2436 MSG_V("SwScaler: using %s YV12->BGR15 Converter\n", cpuCaps.hasMMX ? "MMX" : "C");
28bf81c9 2437
0d9f3d85 2438 MSG_V("SwScaler: %dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
28bf81c9 2439 }
1e621b18
MN
2440 if((flags & SWS_PRINT_INFO) && verbose>1)
2441 {
0d9f3d85 2442 MSG_DBG2("SwScaler:Lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1e621b18 2443 c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
0d9f3d85 2444 MSG_DBG2("SwScaler:Chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
1e621b18
MN
2445 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
2446 }
37079906
MN
2447
2448 c->swScale= swScale;
28bf81c9
MN
2449 return c;
2450}
2451
2452/**
2453 * returns a normalized gaussian curve used to filter stuff
2454 * quality=3 is high quality, lowwer is lowwer quality
2455 */
c7f822d9
MN
2456
2457SwsVector *getGaussianVec(double variance, double quality){
28bf81c9
MN
2458 const int length= (int)(variance*quality + 0.5) | 1;
2459 int i;
2460 double *coeff= memalign(sizeof(double), length*sizeof(double));
2461 double middle= (length-1)*0.5;
c7f822d9
MN
2462 SwsVector *vec= malloc(sizeof(SwsVector));
2463
2464 vec->coeff= coeff;
2465 vec->length= length;
28bf81c9
MN
2466
2467 for(i=0; i<length; i++)
2468 {
2469 double dist= i-middle;
2470 coeff[i]= exp( -dist*dist/(2*variance*variance) ) / sqrt(2*variance*PI);
2471 }
2472
c7f822d9
MN
2473 normalizeVec(vec, 1.0);
2474
2475 return vec;
28bf81c9
MN
2476}
2477
5521b193
MN
2478SwsVector *getConstVec(double c, int length){
2479 int i;
2480 double *coeff= memalign(sizeof(double), length*sizeof(double));
2481 SwsVector *vec= malloc(sizeof(SwsVector));
2482
2483 vec->coeff= coeff;
2484 vec->length= length;
2485
2486 for(i=0; i<length; i++)
2487 coeff[i]= c;
2488
2489 return vec;
2490}
2491
2492
c7f822d9
MN
2493SwsVector *getIdentityVec(void){
2494 double *coeff= memalign(sizeof(double), sizeof(double));
2495 SwsVector *vec= malloc(sizeof(SwsVector));
2496 coeff[0]= 1.0;
2497
2498 vec->coeff= coeff;
2499 vec->length= 1;
2500
2501 return vec;
2502}
2503
2504void normalizeVec(SwsVector *a, double height){
28bf81c9
MN
2505 int i;
2506 double sum=0;
2507 double inv;
2508
c7f822d9
MN
2509 for(i=0; i<a->length; i++)
2510 sum+= a->coeff[i];
28bf81c9
MN
2511
2512 inv= height/sum;
2513
c7f822d9
MN
2514 for(i=0; i<a->length; i++)
2515 a->coeff[i]*= height;
28bf81c9
MN
2516}
2517
c7f822d9
MN
2518void scaleVec(SwsVector *a, double scalar){
2519 int i;
2520
2521 for(i=0; i<a->length; i++)
2522 a->coeff[i]*= scalar;
2523}
2524
5cebb24b 2525static SwsVector *getConvVec(SwsVector *a, SwsVector *b){
c7f822d9 2526 int length= a->length + b->length - 1;
28bf81c9
MN
2527 double *coeff= memalign(sizeof(double), length*sizeof(double));
2528 int i, j;
c7f822d9
MN
2529 SwsVector *vec= malloc(sizeof(SwsVector));
2530
2531 vec->coeff= coeff;
2532 vec->length= length;
28bf81c9
MN
2533
2534 for(i=0; i<length; i++) coeff[i]= 0.0;
2535
c7f822d9 2536 for(i=0; i<a->length; i++)
28bf81c9 2537 {
c7f822d9 2538 for(j=0; j<b->length; j++)
28bf81c9 2539 {
c7f822d9 2540 coeff[i+j]+= a->coeff[i]*b->coeff[j];
28bf81c9
MN
2541 }
2542 }
2543
c7f822d9 2544 return vec;
28bf81c9
MN
2545}
2546
5cebb24b 2547static SwsVector *sumVec(SwsVector *a, SwsVector *b){
c7f822d9 2548 int length= MAX(a->length, b->length);
28bf81c9
MN
2549 double *coeff= memalign(sizeof(double), length*sizeof(double));
2550 int i;
c7f822d9
MN
2551 SwsVector *vec= malloc(sizeof(SwsVector));
2552
2553 vec->coeff= coeff;
2554 vec->length= length;
28bf81c9
MN
2555
2556 for(i=0; i<length; i++) coeff[i]= 0.0;
2557
c7f822d9
MN
2558 for(i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
2559 for(i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
2560
2561 return vec;
28bf81c9 2562}
c7f822d9 2563
5cebb24b 2564static SwsVector *diffVec(SwsVector *a, SwsVector *b){
c7f822d9
MN
2565 int length= MAX(a->length, b->length);
2566 double *coeff= memalign(sizeof(double), length*sizeof(double));
2567 int i;
2568 SwsVector *vec= malloc(sizeof(SwsVector));
2569
2570 vec->coeff= coeff;
2571 vec->length= length;
2572
2573 for(i=0; i<length; i++) coeff[i]= 0.0;
2574
2575 for(i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
2576 for(i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
2577
2578 return vec;
2579}
2580
2581/* shift left / or right if "shift" is negative */
5cebb24b 2582static SwsVector *getShiftedVec(SwsVector *a, int shift){
c7f822d9
MN
2583 int length= a->length + ABS(shift)*2;
2584 double *coeff= memalign(sizeof(double), length*sizeof(double));
ff7ba856 2585 int i;
c7f822d9
MN
2586 SwsVector *vec= malloc(sizeof(SwsVector));
2587
2588 vec->coeff= coeff;
2589 vec->length= length;
2590
2591 for(i=0; i<length; i++) coeff[i]= 0.0;
2592
2593 for(i=0; i<a->length; i++)
2594 {
2595 coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
2596 }
2597
2598 return vec;
2599}
2600
5cebb24b
MN
2601void shiftVec(SwsVector *a, int shift){
2602 SwsVector *shifted= getShiftedVec(a, shift);
2603 free(a->coeff);
2604 a->coeff= shifted->coeff;
2605 a->length= shifted->length;
2606 free(shifted);
2607}
2608
2609void addVec(SwsVector *a, SwsVector *b){
2610 SwsVector *sum= sumVec(a, b);
2611 free(a->coeff);
2612 a->coeff= sum->coeff;
2613 a->length= sum->length;
2614 free(sum);
2615}
2616
2617void subVec(SwsVector *a, SwsVector *b){
2618 SwsVector *diff= diffVec(a, b);
2619 free(a->coeff);
2620 a->coeff= diff->coeff;
2621 a->length= diff->length;
2622 free(diff);
2623}
2624
2625void convVec(SwsVector *a, SwsVector *b){
2626 SwsVector *conv= getConvVec(a, b);
2627 free(a->coeff);
2628 a->coeff= conv->coeff;
2629 a->length= conv->length;
2630 free(conv);
2631}
2632
2633SwsVector *cloneVec(SwsVector *a){
2634 double *coeff= memalign(sizeof(double), a->length*sizeof(double));
2635 int i;
2636 SwsVector *vec= malloc(sizeof(SwsVector));
2637
2638 vec->coeff= coeff;
2639 vec->length= a->length;
2640
2641 for(i=0; i<a->length; i++) coeff[i]= a->coeff[i];
2642
2643 return vec;
2644}
2645
c7f822d9
MN
2646void printVec(SwsVector *a){
2647 int i;
2648 double max=0;
2649 double min=0;
2650 double range;
2651
2652 for(i=0; i<a->length; i++)
2653 if(a->coeff[i]>max) max= a->coeff[i];
2654
2655 for(i=0; i<a->length; i++)
2656 if(a->coeff[i]<min) min= a->coeff[i];
2657
2658 range= max - min;
2659
2660 for(i=0; i<a->length; i++)
2661 {
2662 int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
0d9f3d85
A
2663 MSG_DBG2("%1.3f ", a->coeff[i]);
2664 for(;x>0; x--) MSG_DBG2(" ");
2665 MSG_DBG2("|\n");
c7f822d9
MN
2666 }
2667}
2668
2669void freeVec(SwsVector *a){
2670 if(!a) return;
2671 if(a->coeff) free(a->coeff);
2672 a->coeff=NULL;
2673 a->length=0;
2674 free(a);
2675}
2676
2677void freeSwsContext(SwsContext *c){
2678 int i;
c7f822d9
MN
2679 if(!c) return;
2680
2681 if(c->lumPixBuf)
2682 {
6c7506de 2683 for(i=0; i<c->vLumBufSize; i++)
c7f822d9
MN
2684 {
2685 if(c->lumPixBuf[i]) free(c->lumPixBuf[i]);
2686 c->lumPixBuf[i]=NULL;
2687 }
2688 free(c->lumPixBuf);
2689 c->lumPixBuf=NULL;
2690 }
2691
2692 if(c->chrPixBuf)
2693 {
6c7506de 2694 for(i=0; i<c->vChrBufSize; i++)
c7f822d9
MN
2695 {
2696 if(c->chrPixBuf[i]) free(c->chrPixBuf[i]);
2697 c->chrPixBuf[i]=NULL;
2698 }
2699 free(c->chrPixBuf);
2700 c->chrPixBuf=NULL;
2701 }
2702
2703 if(c->vLumFilter) free(c->vLumFilter);
2704 c->vLumFilter = NULL;
2705 if(c->vChrFilter) free(c->vChrFilter);
2706 c->vChrFilter = NULL;
2707 if(c->hLumFilter) free(c->hLumFilter);
2708 c->hLumFilter = NULL;
2709 if(c->hChrFilter) free(c->hChrFilter);
2710 c->hChrFilter = NULL;
2711
2712 if(c->vLumFilterPos) free(c->vLumFilterPos);
2713 c->vLumFilterPos = NULL;
2714 if(c->vChrFilterPos) free(c->vChrFilterPos);
2715 c->vChrFilterPos = NULL;
2716 if(c->hLumFilterPos) free(c->hLumFilterPos);
2717 c->hLumFilterPos = NULL;
2718 if(c->hChrFilterPos) free(c->hChrFilterPos);
2719 c->hChrFilterPos = NULL;
2720
2721 if(c->lumMmxFilter) free(c->lumMmxFilter);
2722 c->lumMmxFilter = NULL;
2723 if(c->chrMmxFilter) free(c->chrMmxFilter);
2724 c->chrMmxFilter = NULL;
2725
b7dc6f66
MN
2726 if(c->lumMmx2Filter) free(c->lumMmx2Filter);
2727 c->lumMmx2Filter=NULL;
2728 if(c->chrMmx2Filter) free(c->chrMmx2Filter);
2729 c->chrMmx2Filter=NULL;
2730 if(c->lumMmx2FilterPos) free(c->lumMmx2FilterPos);
2731 c->lumMmx2FilterPos=NULL;
2732 if(c->chrMmx2FilterPos) free(c->chrMmx2FilterPos);
2733 c->chrMmx2FilterPos=NULL;
cf7d1c1a
MN
2734 if(c->yuvTable) free(c->yuvTable);
2735 c->yuvTable=NULL;
b7dc6f66 2736
c7f822d9
MN
2737 free(c);
2738}
2739
7f56a527 2740