2 * VC-1 and WMV3 decoder - DSP functions
3 * Copyright (c) 2006 Konstantin Shishkov
5 * This file is part of Libav.
7 * Libav 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.
12 * Libav 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 * VC-1 and WMV3 decoder
28 #include "libavutil/common.h"
29 #include "h264chroma.h"
32 /* Apply overlap transform to horizontal edge */
33 static void vc1_v_overlap_c(uint8_t *src, int stride)
39 for (i = 0; i < 8; i++) {
44 d1 = (a - d + 3 + rnd) >> 3;
45 d2 = (a - d + b - c + 4 - rnd) >> 3;
47 src[-2 * stride] = a - d1;
48 src[-stride] = av_clip_uint8(b - d2);
49 src[0] = av_clip_uint8(c + d2);
56 /* Apply overlap transform to vertical edge */
57 static void vc1_h_overlap_c(uint8_t *src, int stride)
63 for (i = 0; i < 8; i++) {
68 d1 = (a - d + 3 + rnd) >> 3;
69 d2 = (a - d + b - c + 4 - rnd) >> 3;
72 src[-1] = av_clip_uint8(b - d2);
73 src[0] = av_clip_uint8(c + d2);
80 static void vc1_v_s_overlap_c(int16_t *top, int16_t *bottom)
85 int rnd1 = 4, rnd2 = 3;
86 for (i = 0; i < 8; i++) {
94 top[48] = ((a << 3) - d1 + rnd1) >> 3;
95 top[56] = ((b << 3) - d2 + rnd2) >> 3;
96 bottom[0] = ((c << 3) + d2 + rnd1) >> 3;
97 bottom[8] = ((d << 3) + d1 + rnd2) >> 3;
106 static void vc1_h_s_overlap_c(int16_t *left, int16_t *right)
111 int rnd1 = 4, rnd2 = 3;
112 for (i = 0; i < 8; i++) {
120 left[6] = ((a << 3) - d1 + rnd1) >> 3;
121 left[7] = ((b << 3) - d2 + rnd2) >> 3;
122 right[0] = ((c << 3) + d2 + rnd1) >> 3;
123 right[1] = ((d << 3) + d1 + rnd2) >> 3;
133 * VC-1 in-loop deblocking filter for one line
134 * @param src source block type
135 * @param stride block stride
136 * @param pq block quantizer
137 * @return whether other 3 pairs should be filtered or not
140 static av_always_inline int vc1_filter_line(uint8_t *src, int stride, int pq)
142 int a0 = (2 * (src[-2 * stride] - src[1 * stride]) -
143 5 * (src[-1 * stride] - src[0 * stride]) + 4) >> 3;
144 int a0_sign = a0 >> 31; /* Store sign */
146 a0 = (a0 ^ a0_sign) - a0_sign; /* a0 = FFABS(a0); */
148 int a1 = FFABS((2 * (src[-4 * stride] - src[-1 * stride]) -
149 5 * (src[-3 * stride] - src[-2 * stride]) + 4) >> 3);
150 int a2 = FFABS((2 * (src[ 0 * stride] - src[ 3 * stride]) -
151 5 * (src[ 1 * stride] - src[ 2 * stride]) + 4) >> 3);
152 if (a1 < a0 || a2 < a0) {
153 int clip = src[-1 * stride] - src[0 * stride];
154 int clip_sign = clip >> 31;
156 clip = ((clip ^ clip_sign) - clip_sign) >> 1;
158 int a3 = FFMIN(a1, a2);
159 int d = 5 * (a3 - a0);
160 int d_sign = (d >> 31);
162 d = ((d ^ d_sign) - d_sign) >> 3;
165 if (d_sign ^ clip_sign)
169 d = (d ^ d_sign) - d_sign; /* Restore sign */
170 src[-1 * stride] = av_clip_uint8(src[-1 * stride] - d);
171 src[ 0 * stride] = av_clip_uint8(src[ 0 * stride] + d);
181 * VC-1 in-loop deblocking filter
182 * @param src source block type
183 * @param step distance between horizontally adjacent elements
184 * @param stride distance between vertically adjacent elements
185 * @param len edge length to filter (4 or 8 pixels)
186 * @param pq block quantizer
189 static inline void vc1_loop_filter(uint8_t *src, int step, int stride,
195 for (i = 0; i < len; i += 4) {
196 filt3 = vc1_filter_line(src + 2 * step, stride, pq);
198 vc1_filter_line(src + 0 * step, stride, pq);
199 vc1_filter_line(src + 1 * step, stride, pq);
200 vc1_filter_line(src + 3 * step, stride, pq);
206 static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
208 vc1_loop_filter(src, 1, stride, 4, pq);
211 static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
213 vc1_loop_filter(src, stride, 1, 4, pq);
216 static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
218 vc1_loop_filter(src, 1, stride, 8, pq);
221 static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
223 vc1_loop_filter(src, stride, 1, 8, pq);
226 static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
228 vc1_loop_filter(src, 1, stride, 16, pq);
231 static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
233 vc1_loop_filter(src, stride, 1, 16, pq);
236 /* Do inverse transform on 8x8 block */
237 static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
242 dc = (3 * dc + 1) >> 1;
243 dc = (3 * dc + 16) >> 5;
245 for (i = 0; i < 8; i++) {
246 dest[0] = av_clip_uint8(dest[0] + dc);
247 dest[1] = av_clip_uint8(dest[1] + dc);
248 dest[2] = av_clip_uint8(dest[2] + dc);
249 dest[3] = av_clip_uint8(dest[3] + dc);
250 dest[4] = av_clip_uint8(dest[4] + dc);
251 dest[5] = av_clip_uint8(dest[5] + dc);
252 dest[6] = av_clip_uint8(dest[6] + dc);
253 dest[7] = av_clip_uint8(dest[7] + dc);
258 static void vc1_inv_trans_8x8_c(int16_t block[64])
261 register int t1, t2, t3, t4, t5, t6, t7, t8;
262 int16_t *src, *dst, temp[64];
266 for (i = 0; i < 8; i++) {
267 t1 = 12 * (src[ 0] + src[32]) + 4;
268 t2 = 12 * (src[ 0] - src[32]) + 4;
269 t3 = 16 * src[16] + 6 * src[48];
270 t4 = 6 * src[16] - 16 * src[48];
277 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
278 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
279 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
280 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
282 dst[0] = (t5 + t1) >> 3;
283 dst[1] = (t6 + t2) >> 3;
284 dst[2] = (t7 + t3) >> 3;
285 dst[3] = (t8 + t4) >> 3;
286 dst[4] = (t8 - t4) >> 3;
287 dst[5] = (t7 - t3) >> 3;
288 dst[6] = (t6 - t2) >> 3;
289 dst[7] = (t5 - t1) >> 3;
297 for (i = 0; i < 8; i++) {
298 t1 = 12 * (src[ 0] + src[32]) + 64;
299 t2 = 12 * (src[ 0] - src[32]) + 64;
300 t3 = 16 * src[16] + 6 * src[48];
301 t4 = 6 * src[16] - 16 * src[48];
308 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
309 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
310 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
311 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
313 dst[ 0] = (t5 + t1) >> 7;
314 dst[ 8] = (t6 + t2) >> 7;
315 dst[16] = (t7 + t3) >> 7;
316 dst[24] = (t8 + t4) >> 7;
317 dst[32] = (t8 - t4 + 1) >> 7;
318 dst[40] = (t7 - t3 + 1) >> 7;
319 dst[48] = (t6 - t2 + 1) >> 7;
320 dst[56] = (t5 - t1 + 1) >> 7;
327 /* Do inverse transform on 8x4 part of block */
328 static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
333 dc = (3 * dc + 1) >> 1;
334 dc = (17 * dc + 64) >> 7;
336 for (i = 0; i < 4; i++) {
337 dest[0] = av_clip_uint8(dest[0] + dc);
338 dest[1] = av_clip_uint8(dest[1] + dc);
339 dest[2] = av_clip_uint8(dest[2] + dc);
340 dest[3] = av_clip_uint8(dest[3] + dc);
341 dest[4] = av_clip_uint8(dest[4] + dc);
342 dest[5] = av_clip_uint8(dest[5] + dc);
343 dest[6] = av_clip_uint8(dest[6] + dc);
344 dest[7] = av_clip_uint8(dest[7] + dc);
349 static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, int16_t *block)
352 register int t1, t2, t3, t4, t5, t6, t7, t8;
358 for (i = 0; i < 4; i++) {
359 t1 = 12 * (src[0] + src[4]) + 4;
360 t2 = 12 * (src[0] - src[4]) + 4;
361 t3 = 16 * src[2] + 6 * src[6];
362 t4 = 6 * src[2] - 16 * src[6];
369 t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
370 t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
371 t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
372 t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
374 dst[0] = (t5 + t1) >> 3;
375 dst[1] = (t6 + t2) >> 3;
376 dst[2] = (t7 + t3) >> 3;
377 dst[3] = (t8 + t4) >> 3;
378 dst[4] = (t8 - t4) >> 3;
379 dst[5] = (t7 - t3) >> 3;
380 dst[6] = (t6 - t2) >> 3;
381 dst[7] = (t5 - t1) >> 3;
388 for (i = 0; i < 8; i++) {
389 t1 = 17 * (src[ 0] + src[16]) + 64;
390 t2 = 17 * (src[ 0] - src[16]) + 64;
391 t3 = 22 * src[ 8] + 10 * src[24];
392 t4 = 22 * src[24] - 10 * src[ 8];
394 dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t1 + t3) >> 7));
395 dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t2 - t4) >> 7));
396 dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t2 + t4) >> 7));
397 dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t1 - t3) >> 7));
404 /* Do inverse transform on 4x8 parts of block */
405 static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, int16_t *block)
410 dc = (17 * dc + 4) >> 3;
411 dc = (12 * dc + 64) >> 7;
413 for (i = 0; i < 8; i++) {
414 dest[0] = av_clip_uint8(dest[0] + dc);
415 dest[1] = av_clip_uint8(dest[1] + dc);
416 dest[2] = av_clip_uint8(dest[2] + dc);
417 dest[3] = av_clip_uint8(dest[3] + dc);
422 static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, int16_t *block)
425 register int t1, t2, t3, t4, t5, t6, t7, t8;
431 for (i = 0; i < 8; i++) {
432 t1 = 17 * (src[0] + src[2]) + 4;
433 t2 = 17 * (src[0] - src[2]) + 4;
434 t3 = 22 * src[1] + 10 * src[3];
435 t4 = 22 * src[3] - 10 * src[1];
437 dst[0] = (t1 + t3) >> 3;
438 dst[1] = (t2 - t4) >> 3;
439 dst[2] = (t2 + t4) >> 3;
440 dst[3] = (t1 - t3) >> 3;
447 for (i = 0; i < 4; i++) {
448 t1 = 12 * (src[ 0] + src[32]) + 64;
449 t2 = 12 * (src[ 0] - src[32]) + 64;
450 t3 = 16 * src[16] + 6 * src[48];
451 t4 = 6 * src[16] - 16 * src[48];
458 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
459 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
460 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
461 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
463 dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t5 + t1) >> 7));
464 dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t6 + t2) >> 7));
465 dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t7 + t3) >> 7));
466 dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t8 + t4) >> 7));
467 dest[4 * linesize] = av_clip_uint8(dest[4 * linesize] + ((t8 - t4 + 1) >> 7));
468 dest[5 * linesize] = av_clip_uint8(dest[5 * linesize] + ((t7 - t3 + 1) >> 7));
469 dest[6 * linesize] = av_clip_uint8(dest[6 * linesize] + ((t6 - t2 + 1) >> 7));
470 dest[7 * linesize] = av_clip_uint8(dest[7 * linesize] + ((t5 - t1 + 1) >> 7));
477 /* Do inverse transform on 4x4 part of block */
478 static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, int16_t *block)
483 dc = (17 * dc + 4) >> 3;
484 dc = (17 * dc + 64) >> 7;
486 for (i = 0; i < 4; i++) {
487 dest[0] = av_clip_uint8(dest[0] + dc);
488 dest[1] = av_clip_uint8(dest[1] + dc);
489 dest[2] = av_clip_uint8(dest[2] + dc);
490 dest[3] = av_clip_uint8(dest[3] + dc);
495 static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, int16_t *block)
498 register int t1, t2, t3, t4;
503 for (i = 0; i < 4; i++) {
504 t1 = 17 * (src[0] + src[2]) + 4;
505 t2 = 17 * (src[0] - src[2]) + 4;
506 t3 = 22 * src[1] + 10 * src[3];
507 t4 = 22 * src[3] - 10 * src[1];
509 dst[0] = (t1 + t3) >> 3;
510 dst[1] = (t2 - t4) >> 3;
511 dst[2] = (t2 + t4) >> 3;
512 dst[3] = (t1 - t3) >> 3;
519 for (i = 0; i < 4; i++) {
520 t1 = 17 * (src[0] + src[16]) + 64;
521 t2 = 17 * (src[0] - src[16]) + 64;
522 t3 = 22 * src[8] + 10 * src[24];
523 t4 = 22 * src[24] - 10 * src[8];
525 dest[0 * linesize] = av_clip_uint8(dest[0 * linesize] + ((t1 + t3) >> 7));
526 dest[1 * linesize] = av_clip_uint8(dest[1 * linesize] + ((t2 - t4) >> 7));
527 dest[2 * linesize] = av_clip_uint8(dest[2 * linesize] + ((t2 + t4) >> 7));
528 dest[3 * linesize] = av_clip_uint8(dest[3 * linesize] + ((t1 - t3) >> 7));
535 /* motion compensation functions */
537 /* Filter in case of 2 filters */
538 #define VC1_MSPEL_FILTER_16B(DIR, TYPE) \
539 static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, \
544 case 0: /* no shift - should not occur */ \
546 case 1: /* 1/4 shift */ \
547 return -4 * src[-stride] + 53 * src[0] + \
548 18 * src[stride] - 3 * src[stride * 2]; \
549 case 2: /* 1/2 shift */ \
550 return -1 * src[-stride] + 9 * src[0] + \
551 9 * src[stride] - 1 * src[stride * 2]; \
552 case 3: /* 3/4 shift */ \
553 return -3 * src[-stride] + 18 * src[0] + \
554 53 * src[stride] - 4 * src[stride * 2]; \
556 return 0; /* should not occur */ \
559 VC1_MSPEL_FILTER_16B(ver, uint8_t)
560 VC1_MSPEL_FILTER_16B(hor, int16_t)
562 /* Filter used to interpolate fractional pel values */
563 static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride,
570 return (-4 * src[-stride] + 53 * src[0] +
571 18 * src[stride] - 3 * src[stride * 2] + 32 - r) >> 6;
573 return (-1 * src[-stride] + 9 * src[0] +
574 9 * src[stride] - 1 * src[stride * 2] + 8 - r) >> 4;
576 return (-3 * src[-stride] + 18 * src[0] +
577 53 * src[stride] - 4 * src[stride * 2] + 32 - r) >> 6;
579 return 0; // should not occur
582 /* Function used to do motion compensation with bicubic interpolation */
583 #define VC1_MSPEL_MC(OP, OPNAME) \
584 static av_always_inline void OPNAME ## vc1_mspel_mc(uint8_t *dst, \
585 const uint8_t *src, \
593 if (vmode) { /* Horizontal filter to apply */ \
596 if (hmode) { /* Vertical filter to apply, output to tmp */ \
597 static const int shift_value[] = { 0, 5, 1, 5 }; \
598 int shift = (shift_value[hmode] + shift_value[vmode]) >> 1; \
599 int16_t tmp[11 * 8], *tptr = tmp; \
601 r = (1 << (shift - 1)) + rnd - 1; \
604 for (j = 0; j < 8; j++) { \
605 for (i = 0; i < 11; i++) \
606 tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode) + r) >> shift; \
613 for (j = 0; j < 8; j++) { \
614 for (i = 0; i < 8; i++) \
615 OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode) + r) >> 7); \
621 } else { /* No horizontal filter, output 8 lines to dst */ \
624 for (j = 0; j < 8; j++) { \
625 for (i = 0; i < 8; i++) \
626 OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r)); \
634 /* Horizontal mode with no vertical mode */ \
635 for (j = 0; j < 8; j++) { \
636 for (i = 0; i < 8; i++) \
637 OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd)); \
643 #define op_put(a, b) a = av_clip_uint8(b)
644 #define op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1
646 VC1_MSPEL_MC(op_put, put_)
647 VC1_MSPEL_MC(op_avg, avg_)
649 /* pixel functions - really are entry points to vc1_mspel_mc */
651 #define PUT_VC1_MSPEL(a, b) \
652 static void put_vc1_mspel_mc ## a ## b ## _c(uint8_t *dst, \
653 const uint8_t *src, \
654 ptrdiff_t stride, int rnd) \
656 put_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
658 static void avg_vc1_mspel_mc ## a ## b ## _c(uint8_t *dst, \
659 const uint8_t *src, \
660 ptrdiff_t stride, int rnd) \
662 avg_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
684 #define chroma_mc(a) \
685 ((A * src[a] + B * src[a + 1] + \
686 C * src[stride + a] + D * src[stride + a + 1] + 32 - 4) >> 6)
687 static void put_no_rnd_vc1_chroma_mc8_c(uint8_t *dst /* align 8 */,
688 uint8_t *src /* align 1 */,
689 int stride, int h, int x, int y)
691 const int A = (8 - x) * (8 - y);
692 const int B = (x) * (8 - y);
693 const int C = (8 - x) * (y);
694 const int D = (x) * (y);
697 assert(x < 8 && y < 8 && x >= 0 && y >= 0);
699 for (i = 0; i < h; i++) {
700 dst[0] = chroma_mc(0);
701 dst[1] = chroma_mc(1);
702 dst[2] = chroma_mc(2);
703 dst[3] = chroma_mc(3);
704 dst[4] = chroma_mc(4);
705 dst[5] = chroma_mc(5);
706 dst[6] = chroma_mc(6);
707 dst[7] = chroma_mc(7);
713 static void put_no_rnd_vc1_chroma_mc4_c(uint8_t *dst, uint8_t *src,
714 int stride, int h, int x, int y)
716 const int A = (8 - x) * (8 - y);
717 const int B = (x) * (8 - y);
718 const int C = (8 - x) * (y);
719 const int D = (x) * (y);
722 assert(x < 8 && y < 8 && x >= 0 && y >= 0);
724 for (i = 0; i < h; i++) {
725 dst[0] = chroma_mc(0);
726 dst[1] = chroma_mc(1);
727 dst[2] = chroma_mc(2);
728 dst[3] = chroma_mc(3);
734 #define avg2(a, b) (((a) + (b) + 1) >> 1)
735 static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst /* align 8 */,
736 uint8_t *src /* align 1 */,
737 int stride, int h, int x, int y)
739 const int A = (8 - x) * (8 - y);
740 const int B = (x) * (8 - y);
741 const int C = (8 - x) * (y);
742 const int D = (x) * (y);
745 assert(x < 8 && y < 8 && x >= 0 && y >= 0);
747 for (i = 0; i < h; i++) {
748 dst[0] = avg2(dst[0], chroma_mc(0));
749 dst[1] = avg2(dst[1], chroma_mc(1));
750 dst[2] = avg2(dst[2], chroma_mc(2));
751 dst[3] = avg2(dst[3], chroma_mc(3));
752 dst[4] = avg2(dst[4], chroma_mc(4));
753 dst[5] = avg2(dst[5], chroma_mc(5));
754 dst[6] = avg2(dst[6], chroma_mc(6));
755 dst[7] = avg2(dst[7], chroma_mc(7));
761 static void avg_no_rnd_vc1_chroma_mc4_c(uint8_t *dst /* align 8 */,
762 uint8_t *src /* align 1 */,
763 int stride, int h, int x, int y)
765 const int A = (8 - x) * (8 - y);
766 const int B = ( x) * (8 - y);
767 const int C = (8 - x) * ( y);
768 const int D = ( x) * ( y);
771 assert(x < 8 && y < 8 && x >= 0 && y >= 0);
773 for (i = 0; i < h; i++) {
774 dst[0] = avg2(dst[0], chroma_mc(0));
775 dst[1] = avg2(dst[1], chroma_mc(1));
776 dst[2] = avg2(dst[2], chroma_mc(2));
777 dst[3] = avg2(dst[3], chroma_mc(3));
783 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
785 static void sprite_h_c(uint8_t *dst, const uint8_t *src, int offset,
786 int advance, int count)
789 int a = src[(offset >> 16)];
790 int b = src[(offset >> 16) + 1];
791 *dst++ = a + ((b - a) * (offset & 0xFFFF) >> 16);
796 static av_always_inline void sprite_v_template(uint8_t *dst,
797 const uint8_t *src1a,
798 const uint8_t *src1b,
801 const uint8_t *src2a,
802 const uint8_t *src2b,
804 int alpha, int scaled,
812 a1 = a1 + ((b1 - a1) * offset1 >> 16);
818 a2 = a2 + ((b2 - a2) * offset2 >> 16);
820 a1 = a1 + ((a2 - a1) * alpha >> 16);
826 static void sprite_v_single_c(uint8_t *dst, const uint8_t *src1a,
827 const uint8_t *src1b,
828 int offset, int width)
830 sprite_v_template(dst, src1a, src1b, offset, 0, NULL, NULL, 0, 0, 1, width);
833 static void sprite_v_double_noscale_c(uint8_t *dst, const uint8_t *src1a,
834 const uint8_t *src2a,
835 int alpha, int width)
837 sprite_v_template(dst, src1a, NULL, 0, 1, src2a, NULL, 0, alpha, 0, width);
840 static void sprite_v_double_onescale_c(uint8_t *dst,
841 const uint8_t *src1a,
842 const uint8_t *src1b,
844 const uint8_t *src2a,
845 int alpha, int width)
847 sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, NULL, 0, alpha, 1,
851 static void sprite_v_double_twoscale_c(uint8_t *dst,
852 const uint8_t *src1a,
853 const uint8_t *src1b,
855 const uint8_t *src2a,
856 const uint8_t *src2b,
861 sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, src2b, offset2,
865 #endif /* CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER */
867 av_cold void ff_vc1dsp_init(VC1DSPContext *dsp)
869 dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;
870 dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
871 dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;
872 dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;
873 dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c;
874 dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c;
875 dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c;
876 dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c;
878 dsp->vc1_h_overlap = vc1_h_overlap_c;
879 dsp->vc1_v_overlap = vc1_v_overlap_c;
880 dsp->vc1_h_s_overlap = vc1_h_s_overlap_c;
881 dsp->vc1_v_s_overlap = vc1_v_s_overlap_c;
883 dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c;
884 dsp->vc1_h_loop_filter4 = vc1_h_loop_filter4_c;
885 dsp->vc1_v_loop_filter8 = vc1_v_loop_filter8_c;
886 dsp->vc1_h_loop_filter8 = vc1_h_loop_filter8_c;
887 dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_c;
888 dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_c;
890 dsp->put_vc1_mspel_pixels_tab[0] = ff_put_pixels8x8_c;
891 dsp->put_vc1_mspel_pixels_tab[1] = put_vc1_mspel_mc10_c;
892 dsp->put_vc1_mspel_pixels_tab[2] = put_vc1_mspel_mc20_c;
893 dsp->put_vc1_mspel_pixels_tab[3] = put_vc1_mspel_mc30_c;
894 dsp->put_vc1_mspel_pixels_tab[4] = put_vc1_mspel_mc01_c;
895 dsp->put_vc1_mspel_pixels_tab[5] = put_vc1_mspel_mc11_c;
896 dsp->put_vc1_mspel_pixels_tab[6] = put_vc1_mspel_mc21_c;
897 dsp->put_vc1_mspel_pixels_tab[7] = put_vc1_mspel_mc31_c;
898 dsp->put_vc1_mspel_pixels_tab[8] = put_vc1_mspel_mc02_c;
899 dsp->put_vc1_mspel_pixels_tab[9] = put_vc1_mspel_mc12_c;
900 dsp->put_vc1_mspel_pixels_tab[10] = put_vc1_mspel_mc22_c;
901 dsp->put_vc1_mspel_pixels_tab[11] = put_vc1_mspel_mc32_c;
902 dsp->put_vc1_mspel_pixels_tab[12] = put_vc1_mspel_mc03_c;
903 dsp->put_vc1_mspel_pixels_tab[13] = put_vc1_mspel_mc13_c;
904 dsp->put_vc1_mspel_pixels_tab[14] = put_vc1_mspel_mc23_c;
905 dsp->put_vc1_mspel_pixels_tab[15] = put_vc1_mspel_mc33_c;
907 dsp->avg_vc1_mspel_pixels_tab[0] = ff_avg_pixels8x8_c;
908 dsp->avg_vc1_mspel_pixels_tab[1] = avg_vc1_mspel_mc10_c;
909 dsp->avg_vc1_mspel_pixels_tab[2] = avg_vc1_mspel_mc20_c;
910 dsp->avg_vc1_mspel_pixels_tab[3] = avg_vc1_mspel_mc30_c;
911 dsp->avg_vc1_mspel_pixels_tab[4] = avg_vc1_mspel_mc01_c;
912 dsp->avg_vc1_mspel_pixels_tab[5] = avg_vc1_mspel_mc11_c;
913 dsp->avg_vc1_mspel_pixels_tab[6] = avg_vc1_mspel_mc21_c;
914 dsp->avg_vc1_mspel_pixels_tab[7] = avg_vc1_mspel_mc31_c;
915 dsp->avg_vc1_mspel_pixels_tab[8] = avg_vc1_mspel_mc02_c;
916 dsp->avg_vc1_mspel_pixels_tab[9] = avg_vc1_mspel_mc12_c;
917 dsp->avg_vc1_mspel_pixels_tab[10] = avg_vc1_mspel_mc22_c;
918 dsp->avg_vc1_mspel_pixels_tab[11] = avg_vc1_mspel_mc32_c;
919 dsp->avg_vc1_mspel_pixels_tab[12] = avg_vc1_mspel_mc03_c;
920 dsp->avg_vc1_mspel_pixels_tab[13] = avg_vc1_mspel_mc13_c;
921 dsp->avg_vc1_mspel_pixels_tab[14] = avg_vc1_mspel_mc23_c;
922 dsp->avg_vc1_mspel_pixels_tab[15] = avg_vc1_mspel_mc33_c;
924 dsp->put_no_rnd_vc1_chroma_pixels_tab[0] = put_no_rnd_vc1_chroma_mc8_c;
925 dsp->avg_no_rnd_vc1_chroma_pixels_tab[0] = avg_no_rnd_vc1_chroma_mc8_c;
926 dsp->put_no_rnd_vc1_chroma_pixels_tab[1] = put_no_rnd_vc1_chroma_mc4_c;
927 dsp->avg_no_rnd_vc1_chroma_pixels_tab[1] = avg_no_rnd_vc1_chroma_mc4_c;
929 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
930 dsp->sprite_h = sprite_h_c;
931 dsp->sprite_v_single = sprite_v_single_c;
932 dsp->sprite_v_double_noscale = sprite_v_double_noscale_c;
933 dsp->sprite_v_double_onescale = sprite_v_double_onescale_c;
934 dsp->sprite_v_double_twoscale = sprite_v_double_twoscale_c;
935 #endif /* CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER */
938 ff_vc1dsp_init_aarch64(dsp);
940 ff_vc1dsp_init_arm(dsp);
942 ff_vc1dsp_init_ppc(dsp);
944 ff_vc1dsp_init_x86(dsp);