projects / libav.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Creative YUV (CYUV) decoder by (Mike Melanson <melanson at pcisys dot net>)
[libav.git] / libavcodec / imgconvert.c
CommitLineData
de6d9b64
FB		 1/*
2 * Misc image convertion routines
524c6b63 3 * Copyright (c) 2001, 2002, 2003 Fabrice Bellard.
de6d9b64 4 *
ff4ec49e
FB		 5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
de6d9b64 9 *
ff4ec49e 10 * This library is distributed in the hope that it will be useful,
de6d9b64 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
ff4ec49e
FB		 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
ff4ec49e
FB		 15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
de6d9b64 18 */
de6d9b64 19#include "avcodec.h"
85c242d8 20#include "dsputil.h"
de6d9b64 21
54329dd5
NK		 22#ifdef USE_FASTMEMCPY
23#include "fastmemcpy.h"
24#endif
5981f4e6
F		 25
26#ifdef HAVE_MMX
27#include "i386/mmx.h"
28#endif
524c6b63
FB		 29
30typedef struct PixFmtInfo {
31 const char *name;
32 UINT8 nb_components; /* number of components in AVPicture array */
33 UINT8 is_yuv : 1; /* true if YUV instead of RGB color space */
34 UINT8 is_packed : 1; /* true if multiple components in same word */
35 UINT8 is_paletted : 1; /* true if paletted */
36 UINT8 is_alpha : 1; /* true if alpha can be specified */
37 UINT8 is_gray : 1; /* true if gray or monochrome format */
38 UINT8 x_chroma_shift; /* X chroma subsampling factor is 2 ^ shift */
39 UINT8 y_chroma_shift; /* Y chroma subsampling factor is 2 ^ shift */
40} PixFmtInfo;
41
42/* this table gives more information about formats */
43static PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
44 /* YUV formats */
45 [PIX_FMT_YUV420P] = {
ef9f7306
MR		 46 .name = "yuv420p",
47 .nb_components = 3, .is_yuv = 1,
48 .x_chroma_shift = 1, .y_chroma_shift = 1,
524c6b63
FB		 49 },
50 [PIX_FMT_YUV422P] = {
ef9f7306
MR		 51 .name = "yuv422p",
52 .nb_components = 3, .is_yuv = 1,
53 .x_chroma_shift = 1, .y_chroma_shift = 0,
524c6b63
FB		 54 },
55 [PIX_FMT_YUV444P] = {
ef9f7306
MR		 56 .name = "yuv444p",
57 .nb_components = 3, .is_yuv = 1,
58 .x_chroma_shift = 0, .y_chroma_shift = 0,
524c6b63
FB		 59 },
60 [PIX_FMT_YUV422] = {
ef9f7306
MR		 61 .name = "yuv422",
62 .nb_components = 1, .is_yuv = 1, .is_packed = 1,
63 .x_chroma_shift = 1, .y_chroma_shift = 0,
524c6b63
FB		 64 },
65 [PIX_FMT_YUV410P] = {
ef9f7306
MR		 66 .name = "yuv410p",
67 .nb_components = 3, .is_yuv = 1,
68 .x_chroma_shift = 2, .y_chroma_shift = 2,
524c6b63
FB		 69 },
70 [PIX_FMT_YUV411P] = {
ef9f7306
MR		 71 .name = "yuv411p",
72 .nb_components = 3, .is_yuv = 1,
73 .x_chroma_shift = 2, .y_chroma_shift = 0,
524c6b63
FB		 74 },
75
76 /* RGB formats */
77 [PIX_FMT_RGB24] = {
ef9f7306
MR		 78 .name = "rgb24",
79 .nb_components = 1, .is_packed = 1,
524c6b63
FB		 80 },
81 [PIX_FMT_BGR24] = {
ef9f7306
MR		 82 .name = "bgr24",
83 .nb_components = 1, .is_packed = 1,
524c6b63
FB		 84 },
85 [PIX_FMT_RGBA32] = {
ef9f7306
MR		 86 .name = "rgba32",
87 .nb_components = 1, .is_packed = 1, .is_alpha = 1,
524c6b63
FB		 88 },
89 [PIX_FMT_RGB565] = {
ef9f7306
MR		 90 .name = "rgb565",
91 .nb_components = 1, .is_packed = 1,
524c6b63
FB		 92 },
93 [PIX_FMT_RGB555] = {
ef9f7306
MR		 94 .name = "rgb555",
95 .nb_components = 1, .is_packed = 1, .is_alpha = 1,
524c6b63
FB		 96 },
97
98 /* gray / mono formats */
99 [PIX_FMT_GRAY8] = {
ef9f7306
MR		 100 .name = "gray",
101 .nb_components = 1, .is_gray = 1,
524c6b63
FB		 102 },
103 [PIX_FMT_MONOWHITE] = {
ef9f7306
MR		 104 .name = "monow",
105 .nb_components = 1, .is_packed = 1, .is_gray = 1,
524c6b63
FB		 106 },
107 [PIX_FMT_MONOBLACK] = {
ef9f7306
MR		 108 .name = "monob",
109 .nb_components = 1, .is_packed = 1, .is_gray = 1,
524c6b63
FB		 110 },
111};
112
113void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift)
114{
115 if (pix_fmt_info[pix_fmt].is_yuv) {
116 *h_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
117 *v_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
118 } else {
119 *h_shift=0;
120 *v_shift=0;
121 }
122}
123
124const char *avcodec_get_pix_fmt_name(int pix_fmt)
125{
126 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
127 return "???";
128 else
129 return pix_fmt_info[pix_fmt].name;
130}
131
2a877875
FB		 132/* Picture field are filled with 'ptr' addresses. Also return size */
133int avpicture_fill(AVPicture *picture, UINT8 *ptr,
134 int pix_fmt, int width, int height)
135{
4c7e8619
FB		 136 int size, w2, h2, size2;
137 PixFmtInfo *pinfo;
138
139 pinfo = &pix_fmt_info[pix_fmt];
2a877875
FB		 140 size = width * height;
141 switch(pix_fmt) {
142 case PIX_FMT_YUV420P:
4c7e8619
FB		 143 case PIX_FMT_YUV422P:
144 case PIX_FMT_YUV444P:
145 case PIX_FMT_YUV410P:
146 case PIX_FMT_YUV411P:
147 w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
148 h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
149 size2 = w2 * h2;
2a877875
FB		 150 picture->data[0] = ptr;
151 picture->data[1] = picture->data[0] + size;
4c7e8619 152 picture->data[2] = picture->data[1] + size2;
2a877875 153 picture->linesize[0] = width;
4c7e8619
FB		 154 picture->linesize[1] = w2;
155 picture->linesize[2] = w2;
156 return size + 2 * size2;
2a877875
FB		 157 case PIX_FMT_RGB24:
158 case PIX_FMT_BGR24:
159 picture->data[0] = ptr;
160 picture->data[1] = NULL;
161 picture->data[2] = NULL;
162 picture->linesize[0] = width * 3;
163 return size * 3;
2a877875
FB		 164 case PIX_FMT_RGBA32:
165 picture->data[0] = ptr;
166 picture->data[1] = NULL;
167 picture->data[2] = NULL;
168 picture->linesize[0] = width * 4;
169 return size * 4;
2a877875
FB		 170 case PIX_FMT_RGB555:
171 case PIX_FMT_RGB565:
172 case PIX_FMT_YUV422:
173 picture->data[0] = ptr;
174 picture->data[1] = NULL;
175 picture->data[2] = NULL;
176 picture->linesize[0] = width * 2;
177 return size * 2;
178 case PIX_FMT_GRAY8:
179 picture->data[0] = ptr;
180 picture->data[1] = NULL;
181 picture->data[2] = NULL;
182 picture->linesize[0] = width;
183 return size;
184 case PIX_FMT_MONOWHITE:
185 case PIX_FMT_MONOBLACK:
186 picture->data[0] = ptr;
187 picture->data[1] = NULL;
188 picture->data[2] = NULL;
189 picture->linesize[0] = (width + 7) >> 3;
190 return picture->linesize[0] * height;
191 default:
192 picture->data[0] = NULL;
193 picture->data[1] = NULL;
194 picture->data[2] = NULL;
195 return -1;
196 }
197}
198
199int avpicture_get_size(int pix_fmt, int width, int height)
200{
201 AVPicture dummy_pict;
202 return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
203}
204
205
de6d9b64
FB		 206/* XXX: totally non optimized */
207
524c6b63
FB		 208static void yuv422_to_yuv420p(AVPicture *dst, AVPicture *src,
209 int width, int height)
de6d9b64 210{
524c6b63 211 UINT8 *lum, *cb, *cr;
de6d9b64 212 int x, y;
524c6b63
FB		 213 const UINT8 *p;
214
215 lum = dst->data[0];
216 cb = dst->data[1];
217 cr = dst->data[2];
218 p = src->data[0];
219
de6d9b64
FB		 220 for(y=0;y<height;y+=2) {
221 for(x=0;x<width;x+=2) {
e78df699
MN		 222 lum[0] = p[0];
223 cb[0] = p[1];
224 lum[1] = p[2];
225 cr[0] = p[3];
de6d9b64
FB		 226 p += 4;
227 lum += 2;
228 cb++;
229 cr++;
230 }
231 for(x=0;x<width;x+=2) {
e78df699
MN		 232 lum[0] = p[0];
233 lum[1] = p[2];
de6d9b64
FB		 234 p += 4;
235 lum += 2;
236 }
237 }
238}
239
240#define SCALEBITS 8
241#define ONE_HALF (1 << (SCALEBITS - 1))
242#define FIX(x) ((int) ((x) * (1L<<SCALEBITS) + 0.5))
243
85c242d8
FB		 244/* XXX: use generic filter ? */
245/* 1x2 -> 1x1 */
246static void shrink2(UINT8 *dst, int dst_wrap,
247 UINT8 *src, int src_wrap,
248 int width, int height)
249{
250 int w;
251 UINT8 *s1, *s2, *d;
252
253 for(;height > 0; height--) {
254 s1 = src;
255 s2 = s1 + src_wrap;
256 d = dst;
257 for(w = width;w >= 4; w-=4) {
258 d[0] = (s1[0] + s2[0]) >> 1;
259 d[1] = (s1[1] + s2[1]) >> 1;
260 d[2] = (s1[2] + s2[2]) >> 1;
261 d[3] = (s1[3] + s2[3]) >> 1;
262 s1 += 4;
263 s2 += 4;
264 d += 4;
265 }
266 for(;w > 0; w--) {
267 d[0] = (s1[0] + s2[0]) >> 1;
268 s1++;
269 s2++;
270 d++;
271 }
272 src += 2 * src_wrap;
273 dst += dst_wrap;
274 }
275}
276
277/* 2x2 -> 1x1 */
278static void shrink22(UINT8 *dst, int dst_wrap,
279 UINT8 *src, int src_wrap,
280 int width, int height)
281{
282 int w;
283 UINT8 *s1, *s2, *d;
284
285 for(;height > 0; height--) {
286 s1 = src;
287 s2 = s1 + src_wrap;
288 d = dst;
289 for(w = width;w >= 4; w-=4) {
290 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 1;
291 d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 1;
292 d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 1;
293 d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 1;
294 s1 += 8;
295 s2 += 8;
296 d += 4;
297 }
298 for(;w > 0; w--) {
299 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 1;
300 s1 += 2;
301 s2 += 2;
302 d++;
303 }
304 src += 2 * src_wrap;
305 dst += dst_wrap;
306 }
307}
308
6742d95d
FR		 309/* 1x1 -> 2x2 */
310static void grow22(UINT8 *dst, int dst_wrap,
311 UINT8 *src, int src_wrap,
312 int width, int height)
313{
314 int w;
315 UINT8 *s1, *d;
316
317 for(;height > 0; height--) {
318 s1 = src;
319 d = dst;
320 for(w = width;w >= 4; w-=4) {
321 d[1] = d[0] = s1[0];
322 d[3] = d[2] = s1[1];
323 s1 += 2;
324 d += 4;
325 }
326 for(;w > 0; w--) {
327 d[0] = s1[0];
328 s1 ++;
329 d++;
330 }
331 if (height%2)
332 src += src_wrap;
333 dst += dst_wrap;
334 }
335}
336
524c6b63 337/* 1x2 -> 2x1 */
789587d5
FB		 338static void conv411(UINT8 *dst, int dst_wrap,
339 UINT8 *src, int src_wrap,
340 int width, int height)
341{
342 int w, c;
343 UINT8 *s1, *s2, *d;
344
524c6b63 345 for(;height > 0; height--) {
789587d5
FB		 346 s1 = src;
347 s2 = src + src_wrap;
348 d = dst;
349 for(w = width;w > 0; w--) {
350 c = (s1[0] + s2[0]) >> 1;
351 d[0] = c;
352 d[1] = c;
353 s1++;
354 s2++;
355 d += 2;
356 }
357 src += src_wrap * 2;
358 dst += dst_wrap;
359 }
360}
361
85c242d8
FB		 362static void img_copy(UINT8 *dst, int dst_wrap,
363 UINT8 *src, int src_wrap,
364 int width, int height)
365{
366 for(;height > 0; height--) {
367 memcpy(dst, src, width);
368 dst += dst_wrap;
369 src += src_wrap;
370 }
371}
372
373#define SCALE_BITS 10
374
375#define C_Y (76309 >> (16 - SCALE_BITS))
376#define C_RV (117504 >> (16 - SCALE_BITS))
377#define C_BU (138453 >> (16 - SCALE_BITS))
378#define C_GU (13954 >> (16 - SCALE_BITS))
379#define C_GV (34903 >> (16 - SCALE_BITS))
380
524c6b63 381#define YUV_TO_RGB2(r, g, b, y1)\
85c242d8
FB		 382{\
383 y = (y1 - 16) * C_Y;\
384 r = cm[(y + r_add) >> SCALE_BITS];\
385 g = cm[(y + g_add) >> SCALE_BITS];\
386 b = cm[(y + b_add) >> SCALE_BITS];\
387}
388
389/* XXX: no chroma interpolating is done */
524c6b63
FB		 390#define RGB_FUNCTIONS(rgb_name) \
391 \
392static void yuv420p_to_ ## rgb_name (AVPicture *dst, AVPicture *src, \
393 int width, int height) \
394{ \
395 UINT8 *y1_ptr, *y2_ptr, *cb_ptr, *cr_ptr, *d, *d1, *d2; \
396 int w, y, cb, cr, r_add, g_add, b_add, width2; \
397 UINT8 *cm = cropTbl + MAX_NEG_CROP; \
398 unsigned int r, g, b; \
399 \
400 d = dst->data[0]; \
401 y1_ptr = src->data[0]; \
402 cb_ptr = src->data[1]; \
403 cr_ptr = src->data[2]; \
4c7e8619
FB		 404 width2 = (width + 1) >> 1; \
405 for(;height >= 2; height -= 2) { \
524c6b63
FB		 406 d1 = d; \
407 d2 = d + dst->linesize[0]; \
408 y2_ptr = y1_ptr + src->linesize[0]; \
4c7e8619 409 for(w = width; w >= 2; w -= 2) { \
524c6b63
FB		 410 cb = cb_ptr[0] - 128; \
411 cr = cr_ptr[0] - 128; \
412 r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
413 g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
414 b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
415 \
416 /* output 4 pixels */ \
417 YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
418 RGB_OUT(d1, r, g, b); \
419 \
420 YUV_TO_RGB2(r, g, b, y1_ptr[1]); \
421 RGB_OUT(d1 + BPP, r, g, b); \
422 \
423 YUV_TO_RGB2(r, g, b, y2_ptr[0]); \
424 RGB_OUT(d2, r, g, b); \
425 \
426 YUV_TO_RGB2(r, g, b, y2_ptr[1]); \
427 RGB_OUT(d2 + BPP, r, g, b); \
428 \
429 d1 += 2 * BPP; \
430 d2 += 2 * BPP; \
431 \
432 y1_ptr += 2; \
433 y2_ptr += 2; \
434 cb_ptr++; \
435 cr_ptr++; \
436 } \
4c7e8619
FB		 437 /* handle odd width */ \
438 if (w) { \
439 cb = cb_ptr[0] - 128; \
440 cr = cr_ptr[0] - 128; \
441 r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
442 g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
443 b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
444 \
445 YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
446 RGB_OUT(d1, r, g, b); \
447 \
448 YUV_TO_RGB2(r, g, b, y2_ptr[0]); \
449 RGB_OUT(d2, r, g, b); \
450 d1 += BPP; \
451 d2 += BPP; \
452 y1_ptr++; \
453 y2_ptr++; \
454 cb_ptr++; \
455 cr_ptr++; \
456 } \
524c6b63
FB		 457 d += 2 * dst->linesize[0]; \
458 y1_ptr += 2 * src->linesize[0] - width; \
459 cb_ptr += src->linesize[1] - width2; \
460 cr_ptr += src->linesize[2] - width2; \
461 } \
4c7e8619
FB		 462 /* handle odd height */ \
463 if (height) { \
464 d1 = d; \
465 for(w = width; w >= 2; w -= 2) { \
466 cb = cb_ptr[0] - 128; \
467 cr = cr_ptr[0] - 128; \
468 r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
469 g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
470 b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
471 \
472 /* output 2 pixels */ \
473 YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
474 RGB_OUT(d1, r, g, b); \
475 \
476 YUV_TO_RGB2(r, g, b, y1_ptr[1]); \
477 RGB_OUT(d1 + BPP, r, g, b); \
478 \
479 d1 += 2 * BPP; \
480 \
481 y1_ptr += 2; \
482 cb_ptr++; \
483 cr_ptr++; \
484 } \
485 /* handle width */ \
486 if (w) { \
487 cb = cb_ptr[0] - 128; \
488 cr = cr_ptr[0] - 128; \
489 r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
490 g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
491 b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
492 \
493 /* output 2 pixels */ \
494 YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
495 RGB_OUT(d1, r, g, b); \
496 d1 += BPP; \
497 \
498 y1_ptr++; \
499 cb_ptr++; \
500 cr_ptr++; \
501 } \
502 } \
524c6b63
FB		 503} \
504 \
505/* XXX: no chroma interpolating is done */ \
506static void yuv422p_to_ ## rgb_name (AVPicture *dst, AVPicture *src, \
507 int width, int height) \
508{ \
509 UINT8 *y1_ptr, *cb_ptr, *cr_ptr, *d, *d1; \
510 int w, y, cb, cr, r_add, g_add, b_add, width2; \
511 UINT8 *cm = cropTbl + MAX_NEG_CROP; \
512 unsigned int r, g, b; \
513 \
514 d = dst->data[0]; \
515 y1_ptr = src->data[0]; \
516 cb_ptr = src->data[1]; \
517 cr_ptr = src->data[2]; \
4c7e8619 518 width2 = (width + 1) >> 1; \
524c6b63
FB		 519 for(;height > 0; height --) { \
520 d1 = d; \
4c7e8619 521 for(w = width; w >= 2; w -= 2) { \
524c6b63
FB		 522 cb = cb_ptr[0] - 128; \
523 cr = cr_ptr[0] - 128; \
524 r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
525 g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
526 b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
527 \
528 /* output 2 pixels */ \
529 YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
4c7e8619 530 RGB_OUT(d1, r, g, b); \
524c6b63
FB		 531 \
532 YUV_TO_RGB2(r, g, b, y1_ptr[1]); \
4c7e8619 533 RGB_OUT(d1 + BPP, r, g, b); \
524c6b63 534 \
4c7e8619 535 d1 += 2 * BPP; \
524c6b63
FB		 536 \
537 y1_ptr += 2; \
538 cb_ptr++; \
539 cr_ptr++; \
540 } \
4c7e8619
FB		 541 /* handle width */ \
542 if (w) { \
543 cb = cb_ptr[0] - 128; \
544 cr = cr_ptr[0] - 128; \
545 r_add = C_RV * cr + (1 << (SCALE_BITS - 1)); \
546 g_add = - C_GU * cb - C_GV * cr + (1 << (SCALE_BITS - 1)); \
547 b_add = C_BU * cb + (1 << (SCALE_BITS - 1)); \
548 \
549 /* output 2 pixels */ \
550 YUV_TO_RGB2(r, g, b, y1_ptr[0]); \
551 RGB_OUT(d1, r, g, b); \
552 d1 += BPP; \
553 \
554 y1_ptr++; \
555 cb_ptr++; \
556 cr_ptr++; \
557 } \
524c6b63
FB		 558 d += dst->linesize[0]; \
559 y1_ptr += src->linesize[0] - width; \
560 cb_ptr += src->linesize[1] - width2; \
561 cr_ptr += src->linesize[2] - width2; \
562 } \
563} \
564 \
565static void rgb_name ## _to_yuv420p(AVPicture *dst, AVPicture *src, \
566 int width, int height) \
567{ \
568 int wrap, wrap3, x, y; \
569 int r, g, b, r1, g1, b1; \
570 UINT8 *lum, *cb, *cr; \
571 const UINT8 *p; \
572 \
573 lum = dst->data[0]; \
574 cb = dst->data[1]; \
575 cr = dst->data[2]; \
576 \
16e83cbb
PG		 577 wrap = dst->linesize[0]; \
578 wrap3 = src->linesize[0]; \
524c6b63
FB		 579 p = src->data[0]; \
580 for(y=0;y<height;y+=2) { \
581 for(x=0;x<width;x+=2) { \
582 RGB_IN(r, g, b, p); \
583 r1 = r; \
584 g1 = g; \
585 b1 = b; \
586 lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \
587 FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
588 RGB_IN(r, g, b, p + BPP); \
589 r1 += r; \
590 g1 += g; \
591 b1 += b; \
592 lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + \
593 FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
594 p += wrap3; \
595 lum += wrap; \
596 \
597 RGB_IN(r, g, b, p); \
598 r1 += r; \
599 g1 += g; \
600 b1 += b; \
601 lum[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \
602 FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
603 \
604 RGB_IN(r, g, b, p + BPP); \
605 r1 += r; \
606 g1 += g; \
607 b1 += b; \
608 lum[1] = (FIX(0.29900) * r + FIX(0.58700) * g + \
609 FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
610 \
611 cb[0] = ((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
612 FIX(0.50000) * b1 + 4 * ONE_HALF - 1) >> \
613 (SCALEBITS + 2)) + 128; \
614 cr[0] = ((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
615 FIX(0.08131) * b1 + 4 * ONE_HALF - 1) >> \
616 (SCALEBITS + 2)) + 128; \
617 \
618 cb++; \
619 cr++; \
69572401 620 p += -wrap3 + 2 * BPP; \
524c6b63
FB		 621 lum += -wrap + 2; \
622 } \
16e83cbb
PG		 623 p += wrap3 + (wrap3 - width * BPP); \
624 lum += wrap + (wrap - width); \
625 cb += dst->linesize[1] - width / 2; \
626 cr += dst->linesize[2] - width / 2; \
524c6b63 627 } \
69572401
FB		 628} \
629 \
630static void rgb_name ## _to_gray(AVPicture *dst, AVPicture *src, \
631 int width, int height) \
632{ \
633 const unsigned char *p; \
634 unsigned char *q; \
635 int r, g, b, dst_wrap, src_wrap; \
636 int x, y; \
637 \
638 p = src->data[0]; \
639 src_wrap = src->linesize[0] - BPP * width; \
640 \
641 q = dst->data[0]; \
642 dst_wrap = dst->linesize[0] - width; \
643 \
644 for(y=0;y<height;y++) { \
645 for(x=0;x<width;x++) { \
646 RGB_IN(r, g, b, p); \
647 q[0] = (FIX(0.29900) * r + FIX(0.58700) * g + \
648 FIX(0.11400) * b + ONE_HALF) >> SCALEBITS; \
649 q++; \
650 p += BPP; \
651 } \
652 p += src_wrap; \
653 q += dst_wrap; \
654 } \
655} \
656 \
657static void gray_to_ ## rgb_name(AVPicture *dst, AVPicture *src, \
658 int width, int height) \
659{ \
660 const unsigned char *p; \
661 unsigned char *q; \
662 int r, dst_wrap, src_wrap; \
663 int x, y; \
664 \
665 p = src->data[0]; \
666 src_wrap = src->linesize[0] - width; \
667 \
668 q = dst->data[0]; \
669 dst_wrap = dst->linesize[0] - BPP * width; \
670 \
671 for(y=0;y<height;y++) { \
672 for(x=0;x<width;x++) { \
673 r = p[0]; \
674 RGB_OUT(q, r, r, r); \
675 q += BPP; \
676 p ++; \
677 } \
678 p += src_wrap; \
679 q += dst_wrap; \
680 } \
524c6b63
FB		 681}
682
683/* copy bit n to bits 0 ... n - 1 */
684static inline unsigned int bitcopy_n(unsigned int a, int n)
b71472eb 685{
524c6b63
FB		 686 int mask;
687 mask = (1 << n) - 1;
688 return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask);
689}
690
691/* rgb555 handling */
692
693#define RGB_IN(r, g, b, s)\
694{\
695 unsigned int v = ((UINT16 *)(s))[0];\
696 r = bitcopy_n(v >> (10 - 3), 3);\
697 g = bitcopy_n(v >> (5 - 3), 3);\
698 b = bitcopy_n(v << 3, 3);\
699}
700
701#define RGB_OUT(d, r, g, b)\
702{\
703 ((UINT16 *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | 0x8000;\
704}
705
706#define BPP 2
707
708RGB_FUNCTIONS(rgb555)
709
710#undef RGB_IN
711#undef RGB_OUT
712#undef BPP
713
714/* rgb565 handling */
715
716#define RGB_IN(r, g, b, s)\
717{\
718 unsigned int v = ((UINT16 *)(s))[0];\
719 r = bitcopy_n(v >> (11 - 3), 3);\
720 g = bitcopy_n(v >> (5 - 2), 2);\
721 b = bitcopy_n(v << 3, 3);\
722}
723
724#define RGB_OUT(d, r, g, b)\
725{\
726 ((UINT16 *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\
727}
728
729#define BPP 2
730
731RGB_FUNCTIONS(rgb565)
732
733#undef RGB_IN
734#undef RGB_OUT
735#undef BPP
736
737/* bgr24 handling */
738
739#define RGB_IN(r, g, b, s)\
740{\
741 b = (s)[0];\
742 g = (s)[1];\
743 r = (s)[2];\
744}
745
746#define RGB_OUT(d, r, g, b)\
747{\
748 (d)[0] = b;\
749 (d)[1] = g;\
750 (d)[2] = r;\
751}
752
753#define BPP 3
754
755RGB_FUNCTIONS(bgr24)
756
757#undef RGB_IN
758#undef RGB_OUT
759#undef BPP
760
761/* rgb24 handling */
762
763#define RGB_IN(r, g, b, s)\
764{\
765 r = (s)[0];\
766 g = (s)[1];\
767 b = (s)[2];\
768}
769
770#define RGB_OUT(d, r, g, b)\
771{\
772 (d)[0] = r;\
773 (d)[1] = g;\
774 (d)[2] = b;\
775}
776
777#define BPP 3
778
779RGB_FUNCTIONS(rgb24)
780
781#undef RGB_IN
782#undef RGB_OUT
783#undef BPP
784
785/* rgba32 handling */
786
787#define RGB_IN(r, g, b, s)\
788{\
789 unsigned int v = ((UINT32 *)(s))[0];\
790 r = (v >> 16) & 0xff;\
791 g = (v >> 8) & 0xff;\
792 b = v & 0xff;\
793}
794
795#define RGB_OUT(d, r, g, b)\
796{\
797 ((UINT32 *)(d))[0] = (0xff << 24) | (r << 16) | (g << 8) | b;\
798}
799
800#define BPP 4
801
802RGB_FUNCTIONS(rgba32)
803
804#undef RGB_IN
805#undef RGB_OUT
806#undef BPP
807
808
809static void rgb24_to_rgb565(AVPicture *dst, AVPicture *src,
810 int width, int height)
811{
812 const unsigned char *p;
813 unsigned char *q;
814 int r, g, b, dst_wrap, src_wrap;
815 int x, y;
816
817 p = src->data[0];
818 src_wrap = src->linesize[0] - 3 * width;
819
820 q = dst->data[0];
821 dst_wrap = dst->linesize[0] - 2 * width;
822
823 for(y=0;y<height;y++) {
824 for(x=0;x<width;x++) {
825 r = p[0];
826 g = p[1];
827 b = p[2];
828
829 ((unsigned short *)q)[0] =
830 ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
831 q += 2;
832 p += 3;
b71472eb 833 }
524c6b63
FB		 834 p += src_wrap;
835 q += dst_wrap;
b71472eb
PG		 836 }
837}
838
524c6b63
FB		 839/* NOTE: we also add a dummy alpha bit */
840static void rgb24_to_rgb555(AVPicture *dst, AVPicture *src,
841 int width, int height)
b71472eb 842{
524c6b63
FB		 843 const unsigned char *p;
844 unsigned char *q;
845 int r, g, b, dst_wrap, src_wrap;
846 int x, y;
847
848 p = src->data[0];
849 src_wrap = src->linesize[0] - 3 * width;
850
851 q = dst->data[0];
852 dst_wrap = dst->linesize[0] - 2 * width;
853
854 for(y=0;y<height;y++) {
855 for(x=0;x<width;x++) {
856 r = p[0];
857 g = p[1];
858 b = p[2];
859
860 ((unsigned short *)q)[0] =
861 ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | 0x8000;
862 q += 2;
863 p += 3;
b71472eb 864 }
524c6b63
FB		 865 p += src_wrap;
866 q += dst_wrap;
b71472eb
PG		 867 }
868}
869
2a877875
FB		 870static void mono_to_gray(AVPicture *dst, AVPicture *src,
871 int width, int height, int xor_mask)
524c6b63
FB		 872{
873 const unsigned char *p;
874 unsigned char *q;
875 int v, dst_wrap, src_wrap;
876 int y, w;
877
878 p = src->data[0];
879 src_wrap = src->linesize[0] - ((width + 7) >> 3);
880
881 q = dst->data[0];
2a877875 882 dst_wrap = dst->linesize[0] - width;
524c6b63
FB		 883 for(y=0;y<height;y++) {
884 w = width;
885 while (w >= 8) {
2a877875
FB		 886 v = *p++ ^ xor_mask;
887 q[0] = -(v >> 7);
888 q[1] = -((v >> 6) & 1);
889 q[2] = -((v >> 5) & 1);
890 q[3] = -((v >> 4) & 1);
891 q[4] = -((v >> 3) & 1);
892 q[5] = -((v >> 2) & 1);
893 q[6] = -((v >> 1) & 1);
894 q[7] = -((v >> 0) & 1);
524c6b63 895 w -= 8;
2a877875 896 q += 8;
524c6b63
FB		 897 }
898 if (w > 0) {
2a877875 899 v = *p++ ^ xor_mask;
524c6b63 900 do {
2a877875
FB		 901 q[0] = -((v >> 7) & 1);
902 q++;
524c6b63
FB		 903 v <<= 1;
904 } while (--w);
85c242d8 905 }
524c6b63
FB		 906 p += src_wrap;
907 q += dst_wrap;
85c242d8
FB		 908 }
909}
910
2a877875 911static void monowhite_to_gray(AVPicture *dst, AVPicture *src,
524c6b63
FB		 912 int width, int height)
913{
2a877875
FB		 914 mono_to_gray(dst, src, width, height, 0xff);
915}
524c6b63 916
2a877875
FB		 917static void monoblack_to_gray(AVPicture *dst, AVPicture *src,
918 int width, int height)
919{
920 mono_to_gray(dst, src, width, height, 0x00);
921}
524c6b63 922
2a877875
FB		 923static void gray_to_mono(AVPicture *dst, AVPicture *src,
924 int width, int height, int xor_mask)
925{
926 int n;
927 const UINT8 *s;
928 UINT8 *d;
929 int j, b, v, n1, src_wrap, dst_wrap, y;
930
931 s = src->data[0];
932 src_wrap = src->linesize[0] - width;
933
934 d = dst->data[0];
935 dst_wrap = dst->linesize[0] - ((width + 7) >> 3);
936 printf("%d %d\n", width, height);
524c6b63
FB		 937
938 for(y=0;y<height;y++) {
2a877875
FB		 939 n = width;
940 while (n >= 8) {
941 v = 0;
942 for(j=0;j<8;j++) {
943 b = s[0];
944 s++;
945 v = (v << 1) | (b >> 7);
946 }
947 d[0] = v ^ xor_mask;
948 d++;
949 n -= 8;
524c6b63 950 }
2a877875
FB		 951 if (n > 0) {
952 n1 = n;
953 v = 0;
954 while (n > 0) {
955 b = s[0];
956 s++;
957 v = (v << 1) | (b >> 7);
958 n--;
959 }
960 d[0] = (v << (8 - (n1 & 7))) ^ xor_mask;
961 d++;
524c6b63 962 }
2a877875
FB		 963 s += src_wrap;
964 d += dst_wrap;
524c6b63
FB		 965 }
966}
967
2a877875
FB		 968static void gray_to_monowhite(AVPicture *dst, AVPicture *src,
969 int width, int height)
970{
971 gray_to_mono(dst, src, width, height, 0xff);
972}
973
974static void gray_to_monoblack(AVPicture *dst, AVPicture *src,
975 int width, int height)
976{
977 gray_to_mono(dst, src, width, height, 0x00);
978}
979
524c6b63
FB		 980typedef struct ConvertEntry {
981 void (*convert)(AVPicture *dst, AVPicture *src, int width, int height);
982} ConvertEntry;
983
984/* add each new convertion function in this table */
985/* constraints;
986 - all non YUV modes must convert at least to and from PIX_FMT_RGB24
987*/
988static ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = {
989 [PIX_FMT_YUV420P] = {
990 [PIX_FMT_RGB555] = {
ef9f7306 991 .convert = yuv420p_to_rgb555
524c6b63
FB		 992 },
993 [PIX_FMT_RGB565] = {
ef9f7306 994 .convert = yuv420p_to_rgb565
524c6b63
FB		 995 },
996 [PIX_FMT_BGR24] = {
ef9f7306 997 .convert = yuv420p_to_bgr24
524c6b63
FB		 998 },
999 [PIX_FMT_RGB24] = {
ef9f7306 1000 .convert = yuv420p_to_rgb24
524c6b63
FB		 1001 },
1002 [PIX_FMT_RGBA32] = {
ef9f7306 1003 .convert = yuv420p_to_rgba32
524c6b63
FB		 1004 },
1005 },
1006 [PIX_FMT_YUV422P] = {
1007 [PIX_FMT_RGB555] = {
ef9f7306 1008 .convert = yuv422p_to_rgb555
524c6b63
FB		 1009 },
1010 [PIX_FMT_RGB565] = {
ef9f7306 1011 .convert = yuv422p_to_rgb565
524c6b63
FB		 1012 },
1013 [PIX_FMT_BGR24] = {
ef9f7306 1014 .convert = yuv422p_to_bgr24
524c6b63
FB		 1015 },
1016 [PIX_FMT_RGB24] = {
ef9f7306 1017 .convert = yuv422p_to_rgb24
524c6b63
FB		 1018 },
1019 [PIX_FMT_RGBA32] = {
ef9f7306 1020 .convert = yuv422p_to_rgba32
524c6b63
FB		 1021 },
1022 },
1023 [PIX_FMT_YUV422] = {
1024 [PIX_FMT_YUV420P] = {
ef9f7306 1025 .convert = yuv422_to_yuv420p,
524c6b63
FB		 1026 },
1027 },
1028
1029 [PIX_FMT_RGB24] = {
1030 [PIX_FMT_YUV420P] = {
ef9f7306 1031 .convert = rgb24_to_yuv420p
524c6b63
FB		 1032 },
1033 [PIX_FMT_RGB565] = {
ef9f7306 1034 .convert = rgb24_to_rgb565
524c6b63
FB		 1035 },
1036 [PIX_FMT_RGB555] = {
ef9f7306 1037 .convert = rgb24_to_rgb555
524c6b63
FB		 1038 },
1039 [PIX_FMT_GRAY8] = {
ef9f7306 1040 .convert = rgb24_to_gray
524c6b63
FB		 1041 },
1042 },
1043 [PIX_FMT_RGBA32] = {
1044 [PIX_FMT_YUV420P] = {
ef9f7306 1045 .convert = rgba32_to_yuv420p
524c6b63 1046 },
69572401
FB		 1047 [PIX_FMT_GRAY8] = {
1048 .convert = rgba32_to_gray
1049 },
524c6b63
FB		 1050 },
1051 [PIX_FMT_BGR24] = {
1052 [PIX_FMT_YUV420P] = {
ef9f7306 1053 .convert = bgr24_to_yuv420p
524c6b63 1054 },
69572401
FB		 1055 [PIX_FMT_GRAY8] = {
1056 .convert = bgr24_to_gray
1057 },
524c6b63
FB		 1058 },
1059 [PIX_FMT_RGB555] = {
1060 [PIX_FMT_YUV420P] = {
ef9f7306 1061 .convert = rgb555_to_yuv420p
524c6b63 1062 },
69572401
FB		 1063 [PIX_FMT_GRAY8] = {
1064 .convert = rgb555_to_gray
1065 },
524c6b63
FB		 1066 },
1067 [PIX_FMT_RGB565] = {
1068 [PIX_FMT_YUV420P] = {
ef9f7306 1069 .convert = rgb565_to_yuv420p
524c6b63 1070 },
69572401
FB		 1071 [PIX_FMT_GRAY8] = {
1072 .convert = rgb565_to_gray
1073 },
524c6b63
FB		 1074 },
1075 [PIX_FMT_GRAY8] = {
69572401
FB		 1076 [PIX_FMT_RGB555] = {
1077 .convert = gray_to_rgb555
1078 },
1079 [PIX_FMT_RGB565] = {
1080 .convert = gray_to_rgb565
1081 },
524c6b63 1082 [PIX_FMT_RGB24] = {
ef9f7306 1083 .convert = gray_to_rgb24
524c6b63 1084 },
69572401
FB		 1085 [PIX_FMT_BGR24] = {
1086 .convert = gray_to_bgr24
1087 },
1088 [PIX_FMT_RGBA32] = {
1089 .convert = gray_to_rgba32
1090 },
2a877875 1091 [PIX_FMT_MONOWHITE] = {
ef9f7306 1092 .convert = gray_to_monowhite
2a877875
FB		 1093 },
1094 [PIX_FMT_MONOBLACK] = {
ef9f7306 1095 .convert = gray_to_monoblack
2a877875 1096 },
524c6b63
FB		 1097 },
1098 [PIX_FMT_MONOWHITE] = {
2a877875 1099 [PIX_FMT_GRAY8] = {
ef9f7306 1100 .convert = monowhite_to_gray
524c6b63
FB		 1101 },
1102 },
1103 [PIX_FMT_MONOBLACK] = {
2a877875 1104 [PIX_FMT_GRAY8] = {
ef9f7306 1105 .convert = monoblack_to_gray
524c6b63
FB		 1106 },
1107 },
1108};
1109
1110static int avpicture_alloc(AVPicture *picture,
1111 int pix_fmt, int width, int height)
1112{
1113 int size;
1114 void *ptr;
1115
1116 size = avpicture_get_size(pix_fmt, width, height);
1117 if (size < 0)
1118 goto fail;
1119 ptr = av_malloc(size);
1120 if (!ptr)
1121 goto fail;
1122 avpicture_fill(picture, ptr, pix_fmt, width, height);
1123 return 0;
1124 fail:
1125 memset(picture, 0, sizeof(AVPicture));
1126 return -1;
1127}
1128
1129static void avpicture_free(AVPicture *picture)
1130{
8e1e6f31 1131 av_free(picture->data[0]);
524c6b63
FB		 1132}
1133
85c242d8
FB		 1134/* XXX: always use linesize. Return -1 if not supported */
1135int img_convert(AVPicture *dst, int dst_pix_fmt,
524c6b63
FB		 1136 AVPicture *src, int src_pix_fmt,
1137 int src_width, int src_height)
85c242d8 1138{
2a877875 1139 int i, ret, dst_width, dst_height, int_pix_fmt;
524c6b63
FB		 1140 PixFmtInfo *src_pix, *dst_pix;
1141 ConvertEntry *ce;
1142 AVPicture tmp1, *tmp = &tmp1;
1143
1144 if (src_pix_fmt < 0 || src_pix_fmt >= PIX_FMT_NB ||
1145 dst_pix_fmt < 0 || dst_pix_fmt >= PIX_FMT_NB)
1146 return -1;
1147 if (src_width <= 0 || src_height <= 0)
1148 return 0;
69572401 1149
524c6b63
FB		 1150 dst_width = src_width;
1151 dst_height = src_height;
69572401 1152
524c6b63
FB		 1153 dst_pix = &pix_fmt_info[dst_pix_fmt];
1154 src_pix = &pix_fmt_info[src_pix_fmt];
1155 if (src_pix_fmt == dst_pix_fmt) {
2a877875 1156 /* XXX: incorrect */
524c6b63
FB		 1157 /* same format: just copy */
1158 for(i = 0; i < dst_pix->nb_components; i++) {
1159 int w, h;
1160 w = dst_width;
1161 h = dst_height;
1162 if (dst_pix->is_yuv && (i == 1 || i == 2)) {
1163 w >>= dst_pix->x_chroma_shift;
1164 h >>= dst_pix->y_chroma_shift;
85c242d8 1165 }
524c6b63
FB		 1166 img_copy(dst->data[i], dst->linesize[i],
1167 src->data[i], src->linesize[i],
1168 w, h);
85c242d8 1169 }
524c6b63
FB		 1170 return 0;
1171 }
1172
1173 ce = &convert_table[src_pix_fmt][dst_pix_fmt];
1174 if (ce->convert) {
1175 /* specific convertion routine */
1176 ce->convert(dst, src, dst_width, dst_height);
1177 return 0;
1178 }
1179
524c6b63
FB		 1180 /* gray to YUV */
1181 if (dst_pix->is_yuv && src_pix_fmt == PIX_FMT_GRAY8) {
1182 int w, h, y;
1183 uint8_t *d;
1184
1185 img_copy(dst->data[0], dst->linesize[0],
1186 src->data[0], src->linesize[0],
1187 dst_width, dst_height);
1188 /* fill U and V with 128 */
1189 w = dst_width;
1190 h = dst_height;
1191 w >>= dst_pix->x_chroma_shift;
1192 h >>= dst_pix->y_chroma_shift;
1193 for(i = 1; i <= 2; i++) {
1194 d = dst->data[i];
2a877875
FB		 1195 for(y = 0; y< h; y++) {
1196 memset(d, 128, w);
524c6b63
FB		 1197 d += dst->linesize[i];
1198 }
b71472eb 1199 }
524c6b63
FB		 1200 return 0;
1201 }
1202
1203 /* YUV to gray */
1204 if (src_pix->is_yuv && dst_pix_fmt == PIX_FMT_GRAY8) {
1205 img_copy(dst->data[0], dst->linesize[0],
1206 src->data[0], src->linesize[0],
1207 dst_width, dst_height);
1208 return 0;
1209 }
1210
1211 /* YUV to YUV */
1212 if (dst_pix->is_yuv && src_pix->is_yuv) {
1213 int x_shift, y_shift, w, h;
1214 void (*resize_func)(UINT8 *dst, int dst_wrap,
1215 UINT8 *src, int src_wrap,
1216 int width, int height);
1217
1218 /* compute chroma size of the smallest dimensions */
1219 w = dst_width;
1220 h = dst_height;
1221 if (dst_pix->x_chroma_shift >= src_pix->x_chroma_shift)
1222 w >>= dst_pix->x_chroma_shift;
1223 else
1224 w >>= src_pix->x_chroma_shift;
1225 if (dst_pix->y_chroma_shift >= src_pix->y_chroma_shift)
1226 h >>= dst_pix->y_chroma_shift;
1227 else
1228 h >>= src_pix->y_chroma_shift;
1229
1230 x_shift = (dst_pix->x_chroma_shift - src_pix->x_chroma_shift);
1231 y_shift = (dst_pix->y_chroma_shift - src_pix->y_chroma_shift);
1232 if (x_shift == 0 && y_shift == 0) {
1233 resize_func = img_copy; /* should never happen */
1234 } else if (x_shift == 0 && y_shift == 1) {
1235 resize_func = shrink2;
1236 } else if (x_shift == 1 && y_shift == 1) {
1237 resize_func = shrink22;
1238 } else if (x_shift == -1 && y_shift == -1) {
1239 resize_func = grow22;
1240 } else if (x_shift == -1 && y_shift == 1) {
1241 resize_func = conv411;
1242 } else {
1243 /* currently not handled */
85c242d8
FB		 1244 return -1;
1245 }
524c6b63
FB		 1246
1247 img_copy(dst->data[0], dst->linesize[0],
1248 src->data[0], src->linesize[0],
1249 dst_width, dst_height);
566986ee 1250
524c6b63 1251 for(i = 1;i <= 2; i++)
566986ee
MK		 1252 resize_func(dst->data[i], dst->linesize[i],
1253 src->data[i], src->linesize[i],
524c6b63 1254 w, h);
566986ee 1255 return 0;
85c242d8 1256 }
524c6b63 1257
2a877875
FB		 1258 /* try to use an intermediate format */
1259 if (src_pix_fmt == PIX_FMT_MONOWHITE ||
1260 src_pix_fmt == PIX_FMT_MONOBLACK ||
1261 dst_pix_fmt == PIX_FMT_MONOWHITE ||
1262 dst_pix_fmt == PIX_FMT_MONOBLACK) {
1263 int_pix_fmt = PIX_FMT_GRAY8;
1264 } else {
1265 int_pix_fmt = PIX_FMT_RGB24;
1266 }
1267 if (avpicture_alloc(tmp, int_pix_fmt, dst_width, dst_height) < 0)
1268 return -1;
1269 ret = -1;
1270 if (img_convert(tmp, int_pix_fmt,
1271 src, src_pix_fmt, src_width, src_height) < 0)
1272 goto fail1;
1273 if (img_convert(dst, dst_pix_fmt,
1274 tmp, int_pix_fmt, dst_width, dst_height) < 0)
1275 goto fail1;
1276 ret = 0;
1277 fail1:
1278 avpicture_free(tmp);
1279 return ret;
85c242d8
FB		 1280}
1281
5981f4e6
F		 1282
1283#ifdef HAVE_MMX
1284#define DEINT_INPLACE_LINE_LUM \
1285 movd_m2r(lum_m4[0],mm0);\
1286 movd_m2r(lum_m3[0],mm1);\
1287 movd_m2r(lum_m2[0],mm2);\
1288 movd_m2r(lum_m1[0],mm3);\
1289 movd_m2r(lum[0],mm4);\
1290 punpcklbw_r2r(mm7,mm0);\
1291 movd_r2m(mm2,lum_m4[0]);\
1292 punpcklbw_r2r(mm7,mm1);\
1293 punpcklbw_r2r(mm7,mm2);\
1294 punpcklbw_r2r(mm7,mm3);\
1295 punpcklbw_r2r(mm7,mm4);\
1296 paddw_r2r(mm3,mm1);\
1297 psllw_i2r(1,mm2);\
1298 paddw_r2r(mm4,mm0);\
1299 psllw_i2r(2,mm1);\
1300 paddw_r2r(mm6,mm2);\
1301 paddw_r2r(mm2,mm1);\
1302 psubusw_r2r(mm0,mm1);\
1303 psrlw_i2r(3,mm1);\
1304 packuswb_r2r(mm7,mm1);\
1305 movd_r2m(mm1,lum_m2[0]);
1306
1307#define DEINT_LINE_LUM \
1308 movd_m2r(lum_m4[0],mm0);\
1309 movd_m2r(lum_m3[0],mm1);\
1310 movd_m2r(lum_m2[0],mm2);\
1311 movd_m2r(lum_m1[0],mm3);\
1312 movd_m2r(lum[0],mm4);\
1313 punpcklbw_r2r(mm7,mm0);\
1314 punpcklbw_r2r(mm7,mm1);\
1315 punpcklbw_r2r(mm7,mm2);\
1316 punpcklbw_r2r(mm7,mm3);\
1317 punpcklbw_r2r(mm7,mm4);\
1318 paddw_r2r(mm3,mm1);\
1319 psllw_i2r(1,mm2);\
1320 paddw_r2r(mm4,mm0);\
1321 psllw_i2r(2,mm1);\
1322 paddw_r2r(mm6,mm2);\
1323 paddw_r2r(mm2,mm1);\
1324 psubusw_r2r(mm0,mm1);\
1325 psrlw_i2r(3,mm1);\
1326 packuswb_r2r(mm7,mm1);\
1327 movd_r2m(mm1,dst[0]);
1328#endif
1329
85c242d8 1330/* filter parameters: [-1 4 2 4 -1] // 8 */
5981f4e6
F		 1331static void deinterlace_line(UINT8 *dst, UINT8 *lum_m4, UINT8 *lum_m3, UINT8 *lum_m2, UINT8 *lum_m1, UINT8 *lum,
1332 int size)
85c242d8 1333{
5981f4e6 1334#ifndef HAVE_MMX
85c242d8
FB		 1335 UINT8 *cm = cropTbl + MAX_NEG_CROP;
1336 int sum;
85c242d8
FB		 1337
1338 for(;size > 0;size--) {
5981f4e6
F		 1339 sum = -lum_m4[0];
1340 sum += lum_m3[0] << 2;
1341 sum += lum_m2[0] << 1;
1342 sum += lum_m1[0] << 2;
1343 sum += -lum[0];
85c242d8 1344 dst[0] = cm[(sum + 4) >> 3];
5981f4e6
F		 1345 lum_m4++;
1346 lum_m3++;
1347 lum_m2++;
1348 lum_m1++;
1349 lum++;
85c242d8 1350 dst++;
85c242d8 1351 }
5981f4e6
F		 1352#else
1353
782c5984
MN		 1354 {
1355 mmx_t rounder;
1356 rounder.uw[0]=4;
1357 rounder.uw[1]=4;
1358 rounder.uw[2]=4;
1359 rounder.uw[3]=4;
1360 pxor_r2r(mm7,mm7);
1361 movq_m2r(rounder,mm6);
1362 }
5981f4e6
F		 1363 for (;size > 3; size-=4) {
1364 DEINT_LINE_LUM
1365 lum_m4+=4;
1366 lum_m3+=4;
1367 lum_m2+=4;
1368 lum_m1+=4;
1369 lum+=4;
1370 dst+=4;
1371 }
1372#endif
1373}
1374static void deinterlace_line_inplace(UINT8 *lum_m4, UINT8 *lum_m3, UINT8 *lum_m2, UINT8 *lum_m1, UINT8 *lum,
1375 int size)
1376{
1377#ifndef HAVE_MMX
1378 UINT8 *cm = cropTbl + MAX_NEG_CROP;
1379 int sum;
1380
1381 for(;size > 0;size--) {
1382 sum = -lum_m4[0];
1383 sum += lum_m3[0] << 2;
1384 sum += lum_m2[0] << 1;
1385 lum_m4[0]=lum_m2[0];
1386 sum += lum_m1[0] << 2;
1387 sum += -lum[0];
1388 lum_m2[0] = cm[(sum + 4) >> 3];
1389 lum_m4++;
1390 lum_m3++;
1391 lum_m2++;
1392 lum_m1++;
1393 lum++;
1394 }
1395#else
1396
782c5984
MN		 1397 {
1398 mmx_t rounder;
1399 rounder.uw[0]=4;
1400 rounder.uw[1]=4;
1401 rounder.uw[2]=4;
1402 rounder.uw[3]=4;
1403 pxor_r2r(mm7,mm7);
1404 movq_m2r(rounder,mm6);
1405 }
5981f4e6
F		 1406 for (;size > 3; size-=4) {
1407 DEINT_INPLACE_LINE_LUM
1408 lum_m4+=4;
1409 lum_m3+=4;
1410 lum_m2+=4;
1411 lum_m1+=4;
1412 lum+=4;
1413 }
1414#endif
85c242d8
FB		 1415}
1416
1417/* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The
1418 top field is copied as is, but the bottom field is deinterlaced
1419 against the top field. */
1420static void deinterlace_bottom_field(UINT8 *dst, int dst_wrap,
5981f4e6
F		 1421 UINT8 *src1, int src_wrap,
1422 int width, int height)
85c242d8 1423{
5981f4e6
F		 1424 UINT8 *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
1425 int y;
1426
1427 src_m2 = src1;
1428 src_m1 = src1;
1429 src_0=&src_m1[src_wrap];
1430 src_p1=&src_0[src_wrap];
1431 src_p2=&src_p1[src_wrap];
1432 for(y=0;y<(height-2);y+=2) {
1433 memcpy(dst,src_m1,width);
85c242d8 1434 dst += dst_wrap;
5981f4e6
F		 1435 deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width);
1436 src_m2 = src_0;
1437 src_m1 = src_p1;
1438 src_0 = src_p2;
1439 src_p1 += 2*src_wrap;
1440 src_p2 += 2*src_wrap;
85c242d8 1441 dst += dst_wrap;
85c242d8 1442 }
5981f4e6
F		 1443 memcpy(dst,src_m1,width);
1444 dst += dst_wrap;
1445 /* do last line */
1446 deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width);
1447}
1448
1449static void deinterlace_bottom_field_inplace(UINT8 *src1, int src_wrap,
1450 int width, int height)
1451{
1452 UINT8 *src_m1, *src_0, *src_p1, *src_p2;
1453 int y;
1454 UINT8 *buf;
1455 buf = (UINT8*)av_malloc(width);
1456
1457 src_m1 = src1;
1458 memcpy(buf,src_m1,width);
1459 src_0=&src_m1[src_wrap];
1460 src_p1=&src_0[src_wrap];
1461 src_p2=&src_p1[src_wrap];
1462 for(y=0;y<(height-2);y+=2) {
1463 deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width);
1464 src_m1 = src_p1;
1465 src_0 = src_p2;
1466 src_p1 += 2*src_wrap;
1467 src_p2 += 2*src_wrap;
1468 }
1469 /* do last line */
1470 deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width);
6000abfa 1471 av_free(buf);
85c242d8
FB		 1472}
1473
1474
5981f4e6 1475/* deinterlace - if not supported return -1 */
85c242d8 1476int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
de6d9b64
FB		 1477 int pix_fmt, int width, int height)
1478{
85c242d8
FB		 1479 int i;
1480
1481 if (pix_fmt != PIX_FMT_YUV420P &&
1482 pix_fmt != PIX_FMT_YUV422P &&
1483 pix_fmt != PIX_FMT_YUV444P)
1484 return -1;
5981f4e6 1485 if ((width & 3) != 0 || (height & 3) != 0)
85c242d8 1486 return -1;
5981f4e6 1487
85c242d8
FB		 1488 for(i=0;i<3;i++) {
1489 if (i == 1) {
1490 switch(pix_fmt) {
1491 case PIX_FMT_YUV420P:
1492 width >>= 1;
1493 height >>= 1;
1494 break;
1495 case PIX_FMT_YUV422P:
1496 width >>= 1;
1497 break;
1498 default:
1499 break;
1500 }
1501 }
5981f4e6
F		 1502 if (src == dst) {
1503 deinterlace_bottom_field_inplace(src->data[i], src->linesize[i],
85c242d8 1504 width, height);
5981f4e6
F		 1505 } else {
1506 deinterlace_bottom_field(dst->data[i],dst->linesize[i],
1507 src->data[i], src->linesize[i],
1508 width, height);
1509 }
de6d9b64 1510 }
5981f4e6
F		 1511#ifdef HAVE_MMX
1512 emms();
1513#endif
85c242d8 1514 return 0;
de6d9b64 1515}
cd4af68a
ZK		 1516
1517#undef FIX
Libav master