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Imported Debian version 2.4.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / vc1dsp.c
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2ba45a60
DM		 1/*
2 * VC-1 and WMV3 decoder - DSP functions
3 * Copyright (c) 2006 Konstantin Shishkov
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * VC-1 and WMV3 decoder
25 *
26 */
27
28#include "libavutil/avassert.h"
29#include "libavutil/common.h"
30#include "libavutil/intreadwrite.h"
31#include "h264chroma.h"
32#include "qpeldsp.h"
33#include "rnd_avg.h"
34#include "vc1dsp.h"
35#include "startcode.h"
36
37/* Apply overlap transform to horizontal edge */
38static void vc1_v_overlap_c(uint8_t *src, int stride)
39{
40 int i;
41 int a, b, c, d;
42 int d1, d2;
43 int rnd = 1;
44 for (i = 0; i < 8; i++) {
45 a = src[-2 * stride];
46 b = src[-stride];
47 c = src[0];
48 d = src[stride];
49 d1 = (a - d + 3 + rnd) >> 3;
50 d2 = (a - d + b - c + 4 - rnd) >> 3;
51
52 src[-2 * stride] = a - d1;
53 src[-stride] = av_clip_uint8(b - d2);
54 src[0] = av_clip_uint8(c + d2);
55 src[stride] = d + d1;
56 src++;
57 rnd = !rnd;
58 }
59}
60
61/* Apply overlap transform to vertical edge */
62static void vc1_h_overlap_c(uint8_t *src, int stride)
63{
64 int i;
65 int a, b, c, d;
66 int d1, d2;
67 int rnd = 1;
68 for (i = 0; i < 8; i++) {
69 a = src[-2];
70 b = src[-1];
71 c = src[0];
72 d = src[1];
73 d1 = (a - d + 3 + rnd) >> 3;
74 d2 = (a - d + b - c + 4 - rnd) >> 3;
75
76 src[-2] = a - d1;
77 src[-1] = av_clip_uint8(b - d2);
78 src[0] = av_clip_uint8(c + d2);
79 src[1] = d + d1;
80 src += stride;
81 rnd = !rnd;
82 }
83}
84
85static void vc1_v_s_overlap_c(int16_t *top, int16_t *bottom)
86{
87 int i;
88 int a, b, c, d;
89 int d1, d2;
90 int rnd1 = 4, rnd2 = 3;
91 for (i = 0; i < 8; i++) {
92 a = top[48];
93 b = top[56];
94 c = bottom[0];
95 d = bottom[8];
96 d1 = a - d;
97 d2 = a - d + b - c;
98
99 top[48] = ((a << 3) - d1 + rnd1) >> 3;
100 top[56] = ((b << 3) - d2 + rnd2) >> 3;
101 bottom[0] = ((c << 3) + d2 + rnd1) >> 3;
102 bottom[8] = ((d << 3) + d1 + rnd2) >> 3;
103
104 bottom++;
105 top++;
106 rnd2 = 7 - rnd2;
107 rnd1 = 7 - rnd1;
108 }
109}
110
111static void vc1_h_s_overlap_c(int16_t *left, int16_t *right)
112{
113 int i;
114 int a, b, c, d;
115 int d1, d2;
116 int rnd1 = 4, rnd2 = 3;
117 for (i = 0; i < 8; i++) {
118 a = left[6];
119 b = left[7];
120 c = right[0];
121 d = right[1];
122 d1 = a - d;
123 d2 = a - d + b - c;
124
125 left[6] = ((a << 3) - d1 + rnd1) >> 3;
126 left[7] = ((b << 3) - d2 + rnd2) >> 3;
127 right[0] = ((c << 3) + d2 + rnd1) >> 3;
128 right[1] = ((d << 3) + d1 + rnd2) >> 3;
129
130 right += 8;
131 left += 8;
132 rnd2 = 7 - rnd2;
133 rnd1 = 7 - rnd1;
134 }
135}
136
137/**
138 * VC-1 in-loop deblocking filter for one line
139 * @param src source block type
140 * @param stride block stride
141 * @param pq block quantizer
142 * @return whether other 3 pairs should be filtered or not
143 * @see 8.6
144 */
145static av_always_inline int vc1_filter_line(uint8_t *src, int stride, int pq)
146{
147 int a0 = (2 * (src[-2 * stride] - src[1 * stride]) -
148 5 * (src[-1 * stride] - src[0 * stride]) + 4) >> 3;
149 int a0_sign = a0 >> 31; /* Store sign */
150
151 a0 = (a0 ^ a0_sign) - a0_sign; /* a0 = FFABS(a0); */
152 if (a0 < pq) {
153 int a1 = FFABS((2 * (src[-4 * stride] - src[-1 * stride]) -
154 5 * (src[-3 * stride] - src[-2 * stride]) + 4) >> 3);
155 int a2 = FFABS((2 * (src[ 0 * stride] - src[ 3 * stride]) -
156 5 * (src[ 1 * stride] - src[ 2 * stride]) + 4) >> 3);
157 if (a1 < a0 || a2 < a0) {
158 int clip = src[-1 * stride] - src[0 * stride];
159 int clip_sign = clip >> 31;
160
161 clip = ((clip ^ clip_sign) - clip_sign) >> 1;
162 if (clip) {
163 int a3 = FFMIN(a1, a2);
164 int d = 5 * (a3 - a0);
165 int d_sign = (d >> 31);
166
167 d = ((d ^ d_sign) - d_sign) >> 3;
168 d_sign ^= a0_sign;
169
170 if (d_sign ^ clip_sign)
171 d = 0;
172 else {
173 d = FFMIN(d, clip);
174 d = (d ^ d_sign) - d_sign; /* Restore sign */
175 src[-1 * stride] = av_clip_uint8(src[-1 * stride] - d);
176 src[ 0 * stride] = av_clip_uint8(src[ 0 * stride] + d);
177 }
178 return 1;
179 }
180 }
181 }
182 return 0;
183}
184
185/**
186 * VC-1 in-loop deblocking filter
187 * @param src source block type
188 * @param step distance between horizontally adjacent elements
189 * @param stride distance between vertically adjacent elements
190 * @param len edge length to filter (4 or 8 pixels)
191 * @param pq block quantizer
192 * @see 8.6
193 */
194static inline void vc1_loop_filter(uint8_t *src, int step, int stride,
195 int len, int pq)
196{
197 int i;
198 int filt3;
199
200 for (i = 0; i < len; i += 4) {
201 filt3 = vc1_filter_line(src + 2 * step, stride, pq);
202 if (filt3) {
203 vc1_filter_line(src + 0 * step, stride, pq);
204 vc1_filter_line(src + 1 * step, stride, pq);
205 vc1_filter_line(src + 3 * step, stride, pq);
206 }
207 src += step * 4;
208 }
209}
210
211static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
212{
213 vc1_loop_filter(src, 1, stride, 4, pq);
214}
215
216static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
217{
218 vc1_loop_filter(src, stride, 1, 4, pq);
219}
220
221static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
222{
223 vc1_loop_filter(src, 1, stride, 8, pq);
224}
225
226static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
227{
228 vc1_loop_filter(src, stride, 1, 8, pq);
229}
230
231static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
232{
233 vc1_loop_filter(src, 1, stride, 16, pq);
234}
235
236static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
237{
238 vc1_loop_filter(src, stride, 1, 16, pq);
239}
240
241/* Do inverse transform on 8x8 block */
242static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
243{
244 int i;
245 int dc = block[0];
246
247 dc = (3 * dc + 1) >> 1;
248 dc = (3 * dc + 16) >> 5;
249
250 for (i = 0; i < 8; i++) {
251 dest[0] = av_clip_uint8(dest[0] + dc);
252 dest[1] = av_clip_uint8(dest[1] + dc);
253 dest[2] = av_clip_uint8(dest[2] + dc);
254 dest[3] = av_clip_uint8(dest[3] + dc);
255 dest[4] = av_clip_uint8(dest[4] + dc);
256 dest[5] = av_clip_uint8(dest[5] + dc);
257 dest[6] = av_clip_uint8(dest[6] + dc);
258 dest[7] = av_clip_uint8(dest[7] + dc);
259 dest += linesize;
260 }
261}
262
263static void vc1_inv_trans_8x8_c(int16_t block[64])
264{
265 int i;
266 register int t1, t2, t3, t4, t5, t6, t7, t8;
267 int16_t *src, *dst, temp[64];
268
269 src = block;
270 dst = temp;
271 for (i = 0; i < 8; i++) {
272 t1 = 12 * (src[ 0] + src[32]) + 4;
273 t2 = 12 * (src[ 0] - src[32]) + 4;
274 t3 = 16 * src[16] + 6 * src[48];
275 t4 = 6 * src[16] - 16 * src[48];
276
277 t5 = t1 + t3;
278 t6 = t2 + t4;
279 t7 = t2 - t4;
280 t8 = t1 - t3;
281
282 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
283 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
284 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
285 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
286
287 dst[0] = (t5 + t1) >> 3;
288 dst[1] = (t6 + t2) >> 3;
289 dst[2] = (t7 + t3) >> 3;
290 dst[3] = (t8 + t4) >> 3;
291 dst[4] = (t8 - t4) >> 3;
292 dst[5] = (t7 - t3) >> 3;
293 dst[6] = (t6 - t2) >> 3;
294 dst[7] = (t5 - t1) >> 3;
295
296 src += 1;
297 dst += 8;
298 }
299
300 src = temp;
301 dst = block;
302 for (i = 0; i < 8; i++) {
303 t1 = 12 * (src[ 0] + src[32]) + 64;
304 t2 = 12 * (src[ 0] - src[32]) + 64;
305 t3 = 16 * src[16] + 6 * src[48];
306 t4 = 6 * src[16] - 16 * src[48];
307
308 t5 = t1 + t3;
309 t6 = t2 + t4;
310 t7 = t2 - t4;
311 t8 = t1 - t3;
312
313 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
314 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
315 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
316 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
317
318 dst[ 0] = (t5 + t1) >> 7;
319 dst[ 8] = (t6 + t2) >> 7;
320 dst[16] = (t7 + t3) >> 7;
321 dst[24] = (t8 + t4) >> 7;
322 dst[32] = (t8 - t4 + 1) >> 7;
323 dst[40] = (t7 - t3 + 1) >> 7;
324 dst[48] = (t6 - t2 + 1) >> 7;
325 dst[56] = (t5 - t1 + 1) >> 7;
326
327 src++;
328 dst++;
329 }
330}
331
332/* Do inverse transform on 8x4 part of block */
333static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
334{
335 int i;
336 int dc = block[0];
337
338 dc = (3 * dc + 1) >> 1;
339 dc = (17 * dc + 64) >> 7;
340
341 for (i = 0; i < 4; i++) {
342 dest[0] = av_clip_uint8(dest[0] + dc);
343 dest[1] = av_clip_uint8(dest[1] + dc);
344 dest[2] = av_clip_uint8(dest[2] + dc);
345 dest[3] = av_clip_uint8(dest[3] + dc);
346 dest[4] = av_clip_uint8(dest[4] + dc);
347 dest[5] = av_clip_uint8(dest[5] + dc);
348 dest[6] = av_clip_uint8(dest[6] + dc);
349 dest[7] = av_clip_uint8(dest[7] + dc);
350 dest += linesize;
351 }
352}
353
354static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, int16_t *block)
355{
356 int i;
357 register int t1, t2, t3, t4, t5, t6, t7, t8;
358 int16_t *src, *dst;
359
360 src = block;
361 dst = block;
362
363 for (i = 0; i < 4; i++) {
364 t1 = 12 * (src[0] + src[4]) + 4;
365 t2 = 12 * (src[0] - src[4]) + 4;
366 t3 = 16 * src[2] + 6 * src[6];
367 t4 = 6 * src[2] - 16 * src[6];
368
369 t5 = t1 + t3;
370 t6 = t2 + t4;
371 t7 = t2 - t4;
372 t8 = t1 - t3;
373
374 t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
375 t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
376 t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
377 t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
378
379 dst[0] = (t5 + t1) >> 3;
380 dst[1] = (t6 + t2) >> 3;
381 dst[2] = (t7 + t3) >> 3;
382 dst[3] = (t8 + t4) >> 3;
383 dst[4] = (t8 - t4) >> 3;
384 dst[5] = (t7 - t3) >> 3;
385 dst[6] = (t6 - t2) >> 3;
386 dst[7] = (t5 - t1) >> 3;
387
388 src += 8;
389 dst += 8;
390 }
391
392 src = block;
393 for (i = 0; i < 8; i++) {
394 t1 = 17 * (src[ 0] + src[16]) + 64;
395 t2 = 17 * (src[ 0] - src[16]) + 64;
396 t3 = 22 * src[ 8] + 10 * src[24];
397 t4 = 22 * src[24] - 10 * src[ 8];
398
399 dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t1 + t3) >> 7));
400 dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t2 - t4) >> 7));
401 dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t2 + t4) >> 7));
402 dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t1 - t3) >> 7));
403
404 src++;
405 dest++;
406 }
407}
408
409/* Do inverse transform on 4x8 parts of block */
410static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
411{
412 int i;
413 int dc = block[0];
414
415 dc = (17 * dc + 4) >> 3;
416 dc = (12 * dc + 64) >> 7;
417
418 for (i = 0; i < 8; i++) {
419 dest[0] = av_clip_uint8(dest[0] + dc);
420 dest[1] = av_clip_uint8(dest[1] + dc);
421 dest[2] = av_clip_uint8(dest[2] + dc);
422 dest[3] = av_clip_uint8(dest[3] + dc);
423 dest += linesize;
424 }
425}
426
427static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, int16_t *block)
428{
429 int i;
430 register int t1, t2, t3, t4, t5, t6, t7, t8;
431 int16_t *src, *dst;
432
433 src = block;
434 dst = block;
435
436 for (i = 0; i < 8; i++) {
437 t1 = 17 * (src[0] + src[2]) + 4;
438 t2 = 17 * (src[0] - src[2]) + 4;
439 t3 = 22 * src[1] + 10 * src[3];
440 t4 = 22 * src[3] - 10 * src[1];
441
442 dst[0] = (t1 + t3) >> 3;
443 dst[1] = (t2 - t4) >> 3;
444 dst[2] = (t2 + t4) >> 3;
445 dst[3] = (t1 - t3) >> 3;
446
447 src += 8;
448 dst += 8;
449 }
450
451 src = block;
452 for (i = 0; i < 4; i++) {
453 t1 = 12 * (src[ 0] + src[32]) + 64;
454 t2 = 12 * (src[ 0] - src[32]) + 64;
455 t3 = 16 * src[16] + 6 * src[48];
456 t4 = 6 * src[16] - 16 * src[48];
457
458 t5 = t1 + t3;
459 t6 = t2 + t4;
460 t7 = t2 - t4;
461 t8 = t1 - t3;
462
463 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
464 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
465 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
466 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
467
468 dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t5 + t1) >> 7));
469 dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t6 + t2) >> 7));
470 dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t7 + t3) >> 7));
471 dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t8 + t4) >> 7));
472 dest[4 * linesize] = av_clip_uint8(dest[4 * linesize] + ((t8 - t4 + 1) >> 7));
473 dest[5 * linesize] = av_clip_uint8(dest[5 * linesize] + ((t7 - t3 + 1) >> 7));
474 dest[6 * linesize] = av_clip_uint8(dest[6 * linesize] + ((t6 - t2 + 1) >> 7));
475 dest[7 * linesize] = av_clip_uint8(dest[7 * linesize] + ((t5 - t1 + 1) >> 7));
476
477 src++;
478 dest++;
479 }
480}
481
482/* Do inverse transform on 4x4 part of block */
483static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
484{
485 int i;
486 int dc = block[0];
487
488 dc = (17 * dc + 4) >> 3;
489 dc = (17 * dc + 64) >> 7;
490
491 for (i = 0; i < 4; i++) {
492 dest[0] = av_clip_uint8(dest[0] + dc);
493 dest[1] = av_clip_uint8(dest[1] + dc);
494 dest[2] = av_clip_uint8(dest[2] + dc);
495 dest[3] = av_clip_uint8(dest[3] + dc);
496 dest += linesize;
497 }
498}
499
500static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, int16_t *block)
501{
502 int i;
503 register int t1, t2, t3, t4;
504 int16_t *src, *dst;
505
506 src = block;
507 dst = block;
508 for (i = 0; i < 4; i++) {
509 t1 = 17 * (src[0] + src[2]) + 4;
510 t2 = 17 * (src[0] - src[2]) + 4;
511 t3 = 22 * src[1] + 10 * src[3];
512 t4 = 22 * src[3] - 10 * src[1];
513
514 dst[0] = (t1 + t3) >> 3;
515 dst[1] = (t2 - t4) >> 3;
516 dst[2] = (t2 + t4) >> 3;
517 dst[3] = (t1 - t3) >> 3;
518
519 src += 8;
520 dst += 8;
521 }
522
523 src = block;
524 for (i = 0; i < 4; i++) {
525 t1 = 17 * (src[0] + src[16]) + 64;
526 t2 = 17 * (src[0] - src[16]) + 64;
527 t3 = 22 * src[8] + 10 * src[24];
528 t4 = 22 * src[24] - 10 * src[8];
529
530 dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t1 + t3) >> 7));
531 dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t2 - t4) >> 7));
532 dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t2 + t4) >> 7));
533 dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t1 - t3) >> 7));
534
535 src++;
536 dest++;
537 }
538}
539
540/* motion compensation functions */
541
542/* Filter in case of 2 filters */
543#define VC1_MSPEL_FILTER_16B(DIR, TYPE) \
544static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, \
545 int stride, \
546 int mode) \
547{ \
548 switch(mode) { \
549 case 0: /* no shift - should not occur */ \
550 return 0; \
551 case 1: /* 1/4 shift */ \
552 return -4 * src[-stride] + 53 * src[0] + \
553 18 * src[stride] - 3 * src[stride * 2]; \
554 case 2: /* 1/2 shift */ \
555 return -1 * src[-stride] + 9 * src[0] + \
556 9 * src[stride] - 1 * src[stride * 2]; \
557 case 3: /* 3/4 shift */ \
558 return -3 * src[-stride] + 18 * src[0] + \
559 53 * src[stride] - 4 * src[stride * 2]; \
560 } \
561 return 0; /* should not occur */ \
562}
563
564VC1_MSPEL_FILTER_16B(ver, uint8_t)
565VC1_MSPEL_FILTER_16B(hor, int16_t)
566
567/* Filter used to interpolate fractional pel values */
568static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride,
569 int mode, int r)
570{
571 switch (mode) {
572 case 0: // no shift
573 return src[0];
574 case 1: // 1/4 shift
575 return (-4 * src[-stride] + 53 * src[0] +
576 18 * src[stride] - 3 * src[stride * 2] + 32 - r) >> 6;
577 case 2: // 1/2 shift
578 return (-1 * src[-stride] + 9 * src[0] +
579 9 * src[stride] - 1 * src[stride * 2] + 8 - r) >> 4;
580 case 3: // 3/4 shift
581 return (-3 * src[-stride] + 18 * src[0] +
582 53 * src[stride] - 4 * src[stride * 2] + 32 - r) >> 6;
583 }
584 return 0; // should not occur
585}
586
587/* Function used to do motion compensation with bicubic interpolation */
588#define VC1_MSPEL_MC(OP, OP4, OPNAME) \
589static av_always_inline void OPNAME ## vc1_mspel_mc(uint8_t *dst, \
590 const uint8_t *src, \
591 ptrdiff_t stride, \
592 int hmode, \
593 int vmode, \
594 int rnd) \
595{ \
596 int i, j; \
597 \
598 if (vmode) { /* Horizontal filter to apply */ \
599 int r; \
600 \
601 if (hmode) { /* Vertical filter to apply, output to tmp */ \
602 static const int shift_value[] = { 0, 5, 1, 5 }; \
603 int shift = (shift_value[hmode] + shift_value[vmode]) >> 1; \
604 int16_t tmp[11 * 8], *tptr = tmp; \
605 \
606 r = (1 << (shift - 1)) + rnd - 1; \
607 \
608 src -= 1; \
609 for (j = 0; j < 8; j++) { \
610 for (i = 0; i < 11; i++) \
611 tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode) + r) >> shift; \
612 src += stride; \
613 tptr += 11; \
614 } \
615 \
616 r = 64 - rnd; \
617 tptr = tmp + 1; \
618 for (j = 0; j < 8; j++) { \
619 for (i = 0; i < 8; i++) \
620 OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode) + r) >> 7); \
621 dst += stride; \
622 tptr += 11; \
623 } \
624 \
625 return; \
626 } else { /* No horizontal filter, output 8 lines to dst */ \
627 r = 1 - rnd; \
628 \
629 for (j = 0; j < 8; j++) { \
630 for (i = 0; i < 8; i++) \
631 OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r)); \
632 src += stride; \
633 dst += stride; \
634 } \
635 return; \
636 } \
637 } \
638 \
639 /* Horizontal mode with no vertical mode */ \
640 for (j = 0; j < 8; j++) { \
641 for (i = 0; i < 8; i++) \
642 OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd)); \
643 dst += stride; \
644 src += stride; \
645 } \
646}\
647static av_always_inline void OPNAME ## vc1_mspel_mc_16(uint8_t *dst, \
648 const uint8_t *src, \
649 ptrdiff_t stride, \
650 int hmode, \
651 int vmode, \
652 int rnd) \
653{ \
654 int i, j; \
655 \
656 if (vmode) { /* Horizontal filter to apply */ \
657 int r; \
658 \
659 if (hmode) { /* Vertical filter to apply, output to tmp */ \
660 static const int shift_value[] = { 0, 5, 1, 5 }; \
661 int shift = (shift_value[hmode] + shift_value[vmode]) >> 1; \
662 int16_t tmp[19 * 16], *tptr = tmp; \
663 \
664 r = (1 << (shift - 1)) + rnd - 1; \
665 \
666 src -= 1; \
667 for (j = 0; j < 16; j++) { \
668 for (i = 0; i < 19; i++) \
669 tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode) + r) >> shift; \
670 src += stride; \
671 tptr += 19; \
672 } \
673 \
674 r = 64 - rnd; \
675 tptr = tmp + 1; \
676 for (j = 0; j < 16; j++) { \
677 for (i = 0; i < 16; i++) \
678 OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode) + r) >> 7); \
679 dst += stride; \
680 tptr += 19; \
681 } \
682 \
683 return; \
684 } else { /* No horizontal filter, output 8 lines to dst */ \
685 r = 1 - rnd; \
686 \
687 for (j = 0; j < 16; j++) { \
688 for (i = 0; i < 16; i++) \
689 OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r)); \
690 src += stride; \
691 dst += stride; \
692 } \
693 return; \
694 } \
695 } \
696 \
697 /* Horizontal mode with no vertical mode */ \
698 for (j = 0; j < 16; j++) { \
699 for (i = 0; i < 16; i++) \
700 OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd)); \
701 dst += stride; \
702 src += stride; \
703 } \
704}\
705static void OPNAME ## pixels8x8_c(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int rnd){\
706 int i;\
707 for(i=0; i<8; i++){\
708 OP4(*(uint32_t*)(block ), AV_RN32(pixels ));\
709 OP4(*(uint32_t*)(block+4), AV_RN32(pixels+4));\
710 pixels+=line_size;\
711 block +=line_size;\
712 }\
713}\
714static void OPNAME ## pixels16x16_c(uint8_t *block, const uint8_t *pixels, ptrdiff_t line_size, int rnd){\
715 int i;\
716 for(i=0; i<16; i++){\
717 OP4(*(uint32_t*)(block ), AV_RN32(pixels ));\
718 OP4(*(uint32_t*)(block+ 4), AV_RN32(pixels+ 4));\
719 OP4(*(uint32_t*)(block+ 8), AV_RN32(pixels+ 8));\
720 OP4(*(uint32_t*)(block+12), AV_RN32(pixels+12));\
721 pixels+=line_size;\
722 block +=line_size;\
723 }\
724}
725
726#define op_put(a, b) a = av_clip_uint8(b)
727#define op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1
728#define op4_avg(a, b) a = rnd_avg32(a, b)
729#define op4_put(a, b) a = b
730
731VC1_MSPEL_MC(op_put, op4_put, put_)
732VC1_MSPEL_MC(op_avg, op4_avg, avg_)
733
734/* pixel functions - really are entry points to vc1_mspel_mc */
735
736#define PUT_VC1_MSPEL(a, b) \
737static void put_vc1_mspel_mc ## a ## b ## _c(uint8_t *dst, \
738 const uint8_t *src, \
739 ptrdiff_t stride, int rnd) \
740{ \
741 put_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
742} \
743static void avg_vc1_mspel_mc ## a ## b ## _c(uint8_t *dst, \
744 const uint8_t *src, \
745 ptrdiff_t stride, int rnd) \
746{ \
747 avg_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
748} \
749static void put_vc1_mspel_mc ## a ## b ## _16_c(uint8_t *dst, \
750 const uint8_t *src, \
751 ptrdiff_t stride, int rnd) \
752{ \
753 put_vc1_mspel_mc_16(dst, src, stride, a, b, rnd); \
754} \
755static void avg_vc1_mspel_mc ## a ## b ## _16_c(uint8_t *dst, \
756 const uint8_t *src, \
757 ptrdiff_t stride, int rnd) \
758{ \
759 avg_vc1_mspel_mc_16(dst, src, stride, a, b, rnd); \
760}
761
762PUT_VC1_MSPEL(1, 0)
763PUT_VC1_MSPEL(2, 0)
764PUT_VC1_MSPEL(3, 0)
765
766PUT_VC1_MSPEL(0, 1)
767PUT_VC1_MSPEL(1, 1)
768PUT_VC1_MSPEL(2, 1)
769PUT_VC1_MSPEL(3, 1)
770
771PUT_VC1_MSPEL(0, 2)
772PUT_VC1_MSPEL(1, 2)
773PUT_VC1_MSPEL(2, 2)
774PUT_VC1_MSPEL(3, 2)
775
776PUT_VC1_MSPEL(0, 3)
777PUT_VC1_MSPEL(1, 3)
778PUT_VC1_MSPEL(2, 3)
779PUT_VC1_MSPEL(3, 3)
780
781#define chroma_mc(a) \
782 ((A * src[a] + B * src[a + 1] + \
783 C * src[stride + a] + D * src[stride + a + 1] + 32 - 4) >> 6)
784static void put_no_rnd_vc1_chroma_mc8_c(uint8_t *dst /* align 8 */,
785 uint8_t *src /* align 1 */,
786 int stride, int h, int x, int y)
787{
788 const int A = (8 - x) * (8 - y);
789 const int B = (x) * (8 - y);
790 const int C = (8 - x) * (y);
791 const int D = (x) * (y);
792 int i;
793
794 av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);
795
796 for (i = 0; i < h; i++) {
797 dst[0] = chroma_mc(0);
798 dst[1] = chroma_mc(1);
799 dst[2] = chroma_mc(2);
800 dst[3] = chroma_mc(3);
801 dst[4] = chroma_mc(4);
802 dst[5] = chroma_mc(5);
803 dst[6] = chroma_mc(6);
804 dst[7] = chroma_mc(7);
805 dst += stride;
806 src += stride;
807 }
808}
809
810static void put_no_rnd_vc1_chroma_mc4_c(uint8_t *dst, uint8_t *src,
811 int stride, int h, int x, int y)
812{
813 const int A = (8 - x) * (8 - y);
814 const int B = (x) * (8 - y);
815 const int C = (8 - x) * (y);
816 const int D = (x) * (y);
817 int i;
818
819 av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);
820
821 for (i = 0; i < h; i++) {
822 dst[0] = chroma_mc(0);
823 dst[1] = chroma_mc(1);
824 dst[2] = chroma_mc(2);
825 dst[3] = chroma_mc(3);
826 dst += stride;
827 src += stride;
828 }
829}
830
831#define avg2(a, b) (((a) + (b) + 1) >> 1)
832static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst /* align 8 */,
833 uint8_t *src /* align 1 */,
834 int stride, int h, int x, int y)
835{
836 const int A = (8 - x) * (8 - y);
837 const int B = (x) * (8 - y);
838 const int C = (8 - x) * (y);
839 const int D = (x) * (y);
840 int i;
841
842 av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);
843
844 for (i = 0; i < h; i++) {
845 dst[0] = avg2(dst[0], chroma_mc(0));
846 dst[1] = avg2(dst[1], chroma_mc(1));
847 dst[2] = avg2(dst[2], chroma_mc(2));
848 dst[3] = avg2(dst[3], chroma_mc(3));
849 dst[4] = avg2(dst[4], chroma_mc(4));
850 dst[5] = avg2(dst[5], chroma_mc(5));
851 dst[6] = avg2(dst[6], chroma_mc(6));
852 dst[7] = avg2(dst[7], chroma_mc(7));
853 dst += stride;
854 src += stride;
855 }
856}
857
858static void avg_no_rnd_vc1_chroma_mc4_c(uint8_t *dst /* align 8 */,
859 uint8_t *src /* align 1 */,
860 int stride, int h, int x, int y)
861{
862 const int A = (8 - x) * (8 - y);
863 const int B = ( x) * (8 - y);
864 const int C = (8 - x) * ( y);
865 const int D = ( x) * ( y);
866 int i;
867
868 av_assert2(x < 8 && y < 8 && x >= 0 && y >= 0);
869
870 for (i = 0; i < h; i++) {
871 dst[0] = avg2(dst[0], chroma_mc(0));
872 dst[1] = avg2(dst[1], chroma_mc(1));
873 dst[2] = avg2(dst[2], chroma_mc(2));
874 dst[3] = avg2(dst[3], chroma_mc(3));
875 dst += stride;
876 src += stride;
877 }
878}
879
880#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
881
882static void sprite_h_c(uint8_t *dst, const uint8_t *src, int offset,
883 int advance, int count)
884{
885 while (count--) {
886 int a = src[(offset >> 16)];
887 int b = src[(offset >> 16) + 1];
888 *dst++ = a + ((b - a) * (offset & 0xFFFF) >> 16);
889 offset += advance;
890 }
891}
892
893static av_always_inline void sprite_v_template(uint8_t *dst,
894 const uint8_t *src1a,
895 const uint8_t *src1b,
896 int offset1,
897 int two_sprites,
898 const uint8_t *src2a,
899 const uint8_t *src2b,
900 int offset2,
901 int alpha, int scaled,
902 int width)
903{
904 int a1, b1, a2, b2;
905 while (width--) {
906 a1 = *src1a++;
907 if (scaled) {
908 b1 = *src1b++;
909 a1 = a1 + ((b1 - a1) * offset1 >> 16);
910 }
911 if (two_sprites) {
912 a2 = *src2a++;
913 if (scaled > 1) {
914 b2 = *src2b++;
915 a2 = a2 + ((b2 - a2) * offset2 >> 16);
916 }
917 a1 = a1 + ((a2 - a1) * alpha >> 16);
918 }
919 *dst++ = a1;
920 }
921}
922
923static void sprite_v_single_c(uint8_t *dst, const uint8_t *src1a,
924 const uint8_t *src1b,
925 int offset, int width)
926{
927 sprite_v_template(dst, src1a, src1b, offset, 0, NULL, NULL, 0, 0, 1, width);
928}
929
930static void sprite_v_double_noscale_c(uint8_t *dst, const uint8_t *src1a,
931 const uint8_t *src2a,
932 int alpha, int width)
933{
934 sprite_v_template(dst, src1a, NULL, 0, 1, src2a, NULL, 0, alpha, 0, width);
935}
936
937static void sprite_v_double_onescale_c(uint8_t *dst,
938 const uint8_t *src1a,
939 const uint8_t *src1b,
940 int offset1,
941 const uint8_t *src2a,
942 int alpha, int width)
943{
944 sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, NULL, 0, alpha, 1,
945 width);
946}
947
948static void sprite_v_double_twoscale_c(uint8_t *dst,
949 const uint8_t *src1a,
950 const uint8_t *src1b,
951 int offset1,
952 const uint8_t *src2a,
953 const uint8_t *src2b,
954 int offset2,
955 int alpha,
956 int width)
957{
958 sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, src2b, offset2,
959 alpha, 2, width);
960}
961
962#endif /* CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER */
963#define FN_ASSIGN(X, Y) \
964 dsp->put_vc1_mspel_pixels_tab[1][X+4*Y] = put_vc1_mspel_mc##X##Y##_c; \
965 dsp->put_vc1_mspel_pixels_tab[0][X+4*Y] = put_vc1_mspel_mc##X##Y##_16_c; \
966 dsp->avg_vc1_mspel_pixels_tab[1][X+4*Y] = avg_vc1_mspel_mc##X##Y##_c; \
967 dsp->avg_vc1_mspel_pixels_tab[0][X+4*Y] = avg_vc1_mspel_mc##X##Y##_16_c
968
969av_cold void ff_vc1dsp_init(VC1DSPContext *dsp)
970{
971 dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;
972 dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
973 dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;
974 dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;
975 dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c;
976 dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c;
977 dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c;
978 dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c;
979
980 dsp->vc1_h_overlap = vc1_h_overlap_c;
981 dsp->vc1_v_overlap = vc1_v_overlap_c;
982 dsp->vc1_h_s_overlap = vc1_h_s_overlap_c;
983 dsp->vc1_v_s_overlap = vc1_v_s_overlap_c;
984
985 dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c;
986 dsp->vc1_h_loop_filter4 = vc1_h_loop_filter4_c;
987 dsp->vc1_v_loop_filter8 = vc1_v_loop_filter8_c;
988 dsp->vc1_h_loop_filter8 = vc1_h_loop_filter8_c;
989 dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_c;
990 dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_c;
991
992 dsp->put_vc1_mspel_pixels_tab[0][0] = put_pixels16x16_c;
993 dsp->avg_vc1_mspel_pixels_tab[0][0] = avg_pixels16x16_c;
994 dsp->put_vc1_mspel_pixels_tab[1][0] = put_pixels8x8_c;
995 dsp->avg_vc1_mspel_pixels_tab[1][0] = avg_pixels8x8_c;
996 FN_ASSIGN(0, 1);
997 FN_ASSIGN(0, 2);
998 FN_ASSIGN(0, 3);
999
1000 FN_ASSIGN(1, 0);
1001 FN_ASSIGN(1, 1);
1002 FN_ASSIGN(1, 2);
1003 FN_ASSIGN(1, 3);
1004
1005 FN_ASSIGN(2, 0);
1006 FN_ASSIGN(2, 1);
1007 FN_ASSIGN(2, 2);
1008 FN_ASSIGN(2, 3);
1009
1010 FN_ASSIGN(3, 0);
1011 FN_ASSIGN(3, 1);
1012 FN_ASSIGN(3, 2);
1013 FN_ASSIGN(3, 3);
1014
1015 dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = put_no_rnd_vc1_chroma_mc8_c;
1016 dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = avg_no_rnd_vc1_chroma_mc8_c;
1017 dsp->put_no_rnd_vc1_chroma_pixels_tab[1] = put_no_rnd_vc1_chroma_mc4_c;
1018 dsp->avg_no_rnd_vc1_chroma_pixels_tab[1] = avg_no_rnd_vc1_chroma_mc4_c;
1019
1020#if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
1021 dsp->sprite_h = sprite_h_c;
1022 dsp->sprite_v_single = sprite_v_single_c;
1023 dsp->sprite_v_double_noscale = sprite_v_double_noscale_c;
1024 dsp->sprite_v_double_onescale = sprite_v_double_onescale_c;
1025 dsp->sprite_v_double_twoscale = sprite_v_double_twoscale_c;
1026#endif /* CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER */
1027
1028 dsp->startcode_find_candidate = ff_startcode_find_candidate_c;
1029
1030 if (ARCH_AARCH64)
1031 ff_vc1dsp_init_aarch64(dsp);
1032 if (ARCH_ARM)
1033 ff_vc1dsp_init_arm(dsp);
1034 if (ARCH_PPC)
1035 ff_vc1dsp_init_ppc(dsp);
1036 if (ARCH_X86)
1037 ff_vc1dsp_init_x86(dsp);
1038}
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