2 * VC-1 and WMV3 decoder - DSP functions
3 * Copyright (c) 2006 Konstantin Shishkov
5 * This file is part of FFmpeg.
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.
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.
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
24 * VC-1 and WMV3 decoder
31 /** 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
58 static void vc1_h_overlap_c(uint8_t* src, int stride)
64 for(i = 0; i < 8; i++) {
69 d1 = (a - d + 3 + rnd) >> 3;
70 d2 = (a - d + b - c + 4 - rnd) >> 3;
73 src[-1] = av_clip_uint8(b - d2);
74 src[0] = av_clip_uint8(c + d2);
81 static void vc1_v_s_overlap_c(DCTELEM *top, DCTELEM *bottom)
86 int rnd1 = 4, rnd2 = 3;
87 for(i = 0; i < 8; i++) {
95 top[48] = ((a << 3) - d1 + rnd1) >> 3;
96 top[56] = ((b << 3) - d2 + rnd2) >> 3;
97 bottom[0] = ((c << 3) + d2 + rnd1) >> 3;
98 bottom[8] = ((d << 3) + d1 + rnd2) >> 3;
107 static void vc1_h_s_overlap_c(DCTELEM *left, DCTELEM *right)
112 int rnd1 = 4, rnd2 = 3;
113 for(i = 0; i < 8; i++) {
121 left[6] = ((a << 3) - d1 + rnd1) >> 3;
122 left[7] = ((b << 3) - d2 + rnd2) >> 3;
123 right[0] = ((c << 3) + d2 + rnd1) >> 3;
124 right[1] = ((d << 3) + d1 + rnd2) >> 3;
134 * VC-1 in-loop deblocking filter for one line
135 * @param src source block type
136 * @param stride block stride
137 * @param pq block quantizer
138 * @return whether other 3 pairs should be filtered or not
141 static av_always_inline int vc1_filter_line(uint8_t* src, int stride, int pq){
142 uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
144 int a0 = (2*(src[-2*stride] - src[ 1*stride]) - 5*(src[-1*stride] - src[ 0*stride]) + 4) >> 3;
145 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]) - 5*(src[-3*stride] - src[-2*stride]) + 4) >> 3);
149 int a2 = FFABS((2*(src[ 0*stride] - src[ 3*stride]) - 5*(src[ 1*stride] - src[ 2*stride]) + 4) >> 3);
150 if(a1 < a0 || a2 < a0){
151 int clip = src[-1*stride] - src[ 0*stride];
152 int clip_sign = clip >> 31;
153 clip = ((clip ^ clip_sign) - clip_sign)>>1;
155 int a3 = FFMIN(a1, a2);
156 int d = 5 * (a3 - a0);
157 int d_sign = (d >> 31);
158 d = ((d ^ d_sign) - d_sign) >> 3;
161 if( d_sign ^ clip_sign )
165 d = (d ^ d_sign) - d_sign; /* Restore sign */
166 src[-1*stride] = cm[src[-1*stride] - d];
167 src[ 0*stride] = cm[src[ 0*stride] + d];
177 * VC-1 in-loop deblocking filter
178 * @param src source block type
179 * @param step distance between horizontally adjacent elements
180 * @param stride distance between vertically adjacent elements
181 * @param len edge length to filter (4 or 8 pixels)
182 * @param pq block quantizer
185 static inline void vc1_loop_filter(uint8_t* src, int step, int stride, int len, int pq)
190 for(i = 0; i < len; i += 4){
191 filt3 = vc1_filter_line(src + 2*step, stride, pq);
193 vc1_filter_line(src + 0*step, stride, pq);
194 vc1_filter_line(src + 1*step, stride, pq);
195 vc1_filter_line(src + 3*step, stride, pq);
201 static void vc1_v_loop_filter4_c(uint8_t *src, int stride, int pq)
203 vc1_loop_filter(src, 1, stride, 4, pq);
206 static void vc1_h_loop_filter4_c(uint8_t *src, int stride, int pq)
208 vc1_loop_filter(src, stride, 1, 4, pq);
211 static void vc1_v_loop_filter8_c(uint8_t *src, int stride, int pq)
213 vc1_loop_filter(src, 1, stride, 8, pq);
216 static void vc1_h_loop_filter8_c(uint8_t *src, int stride, int pq)
218 vc1_loop_filter(src, stride, 1, 8, pq);
221 static void vc1_v_loop_filter16_c(uint8_t *src, int stride, int pq)
223 vc1_loop_filter(src, 1, stride, 16, pq);
226 static void vc1_h_loop_filter16_c(uint8_t *src, int stride, int pq)
228 vc1_loop_filter(src, stride, 1, 16, pq);
231 /** Do inverse transform on 8x8 block
233 static void vc1_inv_trans_8x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
238 dc = (3 * dc + 1) >> 1;
239 dc = (3 * dc + 16) >> 5;
240 cm = ff_cropTbl + MAX_NEG_CROP + dc;
241 for(i = 0; i < 8; i++){
242 dest[0] = cm[dest[0]];
243 dest[1] = cm[dest[1]];
244 dest[2] = cm[dest[2]];
245 dest[3] = cm[dest[3]];
246 dest[4] = cm[dest[4]];
247 dest[5] = cm[dest[5]];
248 dest[6] = cm[dest[6]];
249 dest[7] = cm[dest[7]];
254 static void vc1_inv_trans_8x8_c(DCTELEM block[64])
257 register int t1,t2,t3,t4,t5,t6,t7,t8;
258 DCTELEM *src, *dst, temp[64];
262 for(i = 0; i < 8; i++){
263 t1 = 12 * (src[ 0] + src[32]) + 4;
264 t2 = 12 * (src[ 0] - src[32]) + 4;
265 t3 = 16 * src[16] + 6 * src[48];
266 t4 = 6 * src[16] - 16 * src[48];
273 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
274 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
275 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
276 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
278 dst[0] = (t5 + t1) >> 3;
279 dst[1] = (t6 + t2) >> 3;
280 dst[2] = (t7 + t3) >> 3;
281 dst[3] = (t8 + t4) >> 3;
282 dst[4] = (t8 - t4) >> 3;
283 dst[5] = (t7 - t3) >> 3;
284 dst[6] = (t6 - t2) >> 3;
285 dst[7] = (t5 - t1) >> 3;
293 for(i = 0; i < 8; i++){
294 t1 = 12 * (src[ 0] + src[32]) + 64;
295 t2 = 12 * (src[ 0] - src[32]) + 64;
296 t3 = 16 * src[16] + 6 * src[48];
297 t4 = 6 * src[16] - 16 * src[48];
304 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
305 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
306 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
307 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
309 dst[ 0] = (t5 + t1) >> 7;
310 dst[ 8] = (t6 + t2) >> 7;
311 dst[16] = (t7 + t3) >> 7;
312 dst[24] = (t8 + t4) >> 7;
313 dst[32] = (t8 - t4 + 1) >> 7;
314 dst[40] = (t7 - t3 + 1) >> 7;
315 dst[48] = (t6 - t2 + 1) >> 7;
316 dst[56] = (t5 - t1 + 1) >> 7;
323 /** Do inverse transform on 8x4 part of block
325 static void vc1_inv_trans_8x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
330 dc = ( 3 * dc + 1) >> 1;
331 dc = (17 * dc + 64) >> 7;
332 cm = ff_cropTbl + MAX_NEG_CROP + dc;
333 for(i = 0; i < 4; i++){
334 dest[0] = cm[dest[0]];
335 dest[1] = cm[dest[1]];
336 dest[2] = cm[dest[2]];
337 dest[3] = cm[dest[3]];
338 dest[4] = cm[dest[4]];
339 dest[5] = cm[dest[5]];
340 dest[6] = cm[dest[6]];
341 dest[7] = cm[dest[7]];
346 static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, DCTELEM *block)
349 register int t1,t2,t3,t4,t5,t6,t7,t8;
351 const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
355 for(i = 0; i < 4; i++){
356 t1 = 12 * (src[0] + src[4]) + 4;
357 t2 = 12 * (src[0] - src[4]) + 4;
358 t3 = 16 * src[2] + 6 * src[6];
359 t4 = 6 * src[2] - 16 * src[6];
366 t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
367 t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
368 t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
369 t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
371 dst[0] = (t5 + t1) >> 3;
372 dst[1] = (t6 + t2) >> 3;
373 dst[2] = (t7 + t3) >> 3;
374 dst[3] = (t8 + t4) >> 3;
375 dst[4] = (t8 - t4) >> 3;
376 dst[5] = (t7 - t3) >> 3;
377 dst[6] = (t6 - t2) >> 3;
378 dst[7] = (t5 - t1) >> 3;
385 for(i = 0; i < 8; i++){
386 t1 = 17 * (src[ 0] + src[16]) + 64;
387 t2 = 17 * (src[ 0] - src[16]) + 64;
388 t3 = 22 * src[ 8] + 10 * src[24];
389 t4 = 22 * src[24] - 10 * src[ 8];
391 dest[0*linesize] = cm[dest[0*linesize] + ((t1 + t3) >> 7)];
392 dest[1*linesize] = cm[dest[1*linesize] + ((t2 - t4) >> 7)];
393 dest[2*linesize] = cm[dest[2*linesize] + ((t2 + t4) >> 7)];
394 dest[3*linesize] = cm[dest[3*linesize] + ((t1 - t3) >> 7)];
401 /** Do inverse transform on 4x8 parts of block
403 static void vc1_inv_trans_4x8_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
408 dc = (17 * dc + 4) >> 3;
409 dc = (12 * dc + 64) >> 7;
410 cm = ff_cropTbl + MAX_NEG_CROP + dc;
411 for(i = 0; i < 8; i++){
412 dest[0] = cm[dest[0]];
413 dest[1] = cm[dest[1]];
414 dest[2] = cm[dest[2]];
415 dest[3] = cm[dest[3]];
420 static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, DCTELEM *block)
423 register int t1,t2,t3,t4,t5,t6,t7,t8;
425 const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
429 for(i = 0; i < 8; i++){
430 t1 = 17 * (src[0] + src[2]) + 4;
431 t2 = 17 * (src[0] - src[2]) + 4;
432 t3 = 22 * src[1] + 10 * src[3];
433 t4 = 22 * src[3] - 10 * src[1];
435 dst[0] = (t1 + t3) >> 3;
436 dst[1] = (t2 - t4) >> 3;
437 dst[2] = (t2 + t4) >> 3;
438 dst[3] = (t1 - t3) >> 3;
445 for(i = 0; i < 4; i++){
446 t1 = 12 * (src[ 0] + src[32]) + 64;
447 t2 = 12 * (src[ 0] - src[32]) + 64;
448 t3 = 16 * src[16] + 6 * src[48];
449 t4 = 6 * src[16] - 16 * src[48];
456 t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
457 t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
458 t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
459 t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
461 dest[0*linesize] = cm[dest[0*linesize] + ((t5 + t1) >> 7)];
462 dest[1*linesize] = cm[dest[1*linesize] + ((t6 + t2) >> 7)];
463 dest[2*linesize] = cm[dest[2*linesize] + ((t7 + t3) >> 7)];
464 dest[3*linesize] = cm[dest[3*linesize] + ((t8 + t4) >> 7)];
465 dest[4*linesize] = cm[dest[4*linesize] + ((t8 - t4 + 1) >> 7)];
466 dest[5*linesize] = cm[dest[5*linesize] + ((t7 - t3 + 1) >> 7)];
467 dest[6*linesize] = cm[dest[6*linesize] + ((t6 - t2 + 1) >> 7)];
468 dest[7*linesize] = cm[dest[7*linesize] + ((t5 - t1 + 1) >> 7)];
475 /** Do inverse transform on 4x4 part of block
477 static void vc1_inv_trans_4x4_dc_c(uint8_t *dest, int linesize, DCTELEM *block)
482 dc = (17 * dc + 4) >> 3;
483 dc = (17 * dc + 64) >> 7;
484 cm = ff_cropTbl + MAX_NEG_CROP + dc;
485 for(i = 0; i < 4; i++){
486 dest[0] = cm[dest[0]];
487 dest[1] = cm[dest[1]];
488 dest[2] = cm[dest[2]];
489 dest[3] = cm[dest[3]];
494 static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, DCTELEM *block)
497 register int t1,t2,t3,t4;
499 const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
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] = cm[dest[0*linesize] + ((t1 + t3) >> 7)];
526 dest[1*linesize] = cm[dest[1*linesize] + ((t2 - t4) >> 7)];
527 dest[2*linesize] = cm[dest[2*linesize] + ((t2 + t4) >> 7)];
528 dest[3*linesize] = cm[dest[3*linesize] + ((t1 - t3) >> 7)];
535 /* motion compensation functions */
536 /** Filter in case of 2 filters */
537 #define VC1_MSPEL_FILTER_16B(DIR, TYPE) \
538 static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, int stride, int mode) \
541 case 0: /* no shift - should not occur */ \
543 case 1: /* 1/4 shift */ \
544 return -4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2]; \
545 case 2: /* 1/2 shift */ \
546 return -src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2]; \
547 case 3: /* 3/4 shift */ \
548 return -3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2]; \
550 return 0; /* should not occur */ \
553 VC1_MSPEL_FILTER_16B(ver, uint8_t)
554 VC1_MSPEL_FILTER_16B(hor, int16_t)
557 /** Filter used to interpolate fractional pel values
559 static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride, int mode, int r)
565 return (-4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2] + 32 - r) >> 6;
567 return (-src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2] + 8 - r) >> 4;
569 return (-3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2] + 32 - r) >> 6;
571 return 0; //should not occur
574 /** Function used to do motion compensation with bicubic interpolation
576 #define VC1_MSPEL_MC(OP, OPNAME)\
577 static void OPNAME ## vc1_mspel_mc(uint8_t *dst, const uint8_t *src, int stride, int hmode, int vmode, int rnd)\
581 if (vmode) { /* Horizontal filter to apply */\
584 if (hmode) { /* Vertical filter to apply, output to tmp */\
585 static const int shift_value[] = { 0, 5, 1, 5 };\
586 int shift = (shift_value[hmode]+shift_value[vmode])>>1;\
587 int16_t tmp[11*8], *tptr = tmp;\
589 r = (1<<(shift-1)) + rnd-1;\
592 for(j = 0; j < 8; j++) {\
593 for(i = 0; i < 11; i++)\
594 tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode)+r)>>shift;\
601 for(j = 0; j < 8; j++) {\
602 for(i = 0; i < 8; i++)\
603 OP(dst[i], (vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode)+r)>>7);\
610 else { /* No horizontal filter, output 8 lines to dst */\
613 for(j = 0; j < 8; j++) {\
614 for(i = 0; i < 8; i++)\
615 OP(dst[i], vc1_mspel_filter(src + i, stride, vmode, r));\
623 /* Horizontal mode with no vertical mode */\
624 for(j = 0; j < 8; j++) {\
625 for(i = 0; i < 8; i++)\
626 OP(dst[i], vc1_mspel_filter(src + i, 1, hmode, rnd));\
632 #define op_put(a, b) a = av_clip_uint8(b)
633 #define op_avg(a, b) a = (a + av_clip_uint8(b) + 1) >> 1
635 VC1_MSPEL_MC(op_put, put_)
636 VC1_MSPEL_MC(op_avg, avg_)
638 /* pixel functions - really are entry points to vc1_mspel_mc */
640 #define PUT_VC1_MSPEL(a, b)\
641 static void put_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
642 put_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
644 static void avg_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
645 avg_vc1_mspel_mc(dst, src, stride, a, b, rnd); \
667 static void put_no_rnd_vc1_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){
668 const int A=(8-x)*(8-y);
669 const int B=( x)*(8-y);
670 const int C=(8-x)*( y);
671 const int D=( x)*( y);
674 assert(x<8 && y<8 && x>=0 && y>=0);
678 dst[0] = (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + 32 - 4) >> 6;
679 dst[1] = (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + 32 - 4) >> 6;
680 dst[2] = (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + 32 - 4) >> 6;
681 dst[3] = (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + 32 - 4) >> 6;
682 dst[4] = (A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + 32 - 4) >> 6;
683 dst[5] = (A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + 32 - 4) >> 6;
684 dst[6] = (A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + 32 - 4) >> 6;
685 dst[7] = (A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + 32 - 4) >> 6;
691 static void put_no_rnd_vc1_chroma_mc4_c(uint8_t *dst, uint8_t *src, int stride, int h, int x, int y){
692 const int A=(8-x)*(8-y);
693 const int B=( x)*(8-y);
694 const int C=(8-x)*( y);
695 const int D=( x)*( y);
698 assert(x<8 && y<8 && x>=0 && y>=0);
702 dst[0] = (A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + 32 - 4) >> 6;
703 dst[1] = (A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + 32 - 4) >> 6;
704 dst[2] = (A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + 32 - 4) >> 6;
705 dst[3] = (A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + 32 - 4) >> 6;
711 #define avg2(a,b) ((a+b+1)>>1)
712 static void avg_no_rnd_vc1_chroma_mc8_c(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y){
713 const int A=(8-x)*(8-y);
714 const int B=( x)*(8-y);
715 const int C=(8-x)*( y);
716 const int D=( x)*( y);
719 assert(x<8 && y<8 && x>=0 && y>=0);
723 dst[0] = avg2(dst[0], ((A*src[0] + B*src[1] + C*src[stride+0] + D*src[stride+1] + 32 - 4) >> 6));
724 dst[1] = avg2(dst[1], ((A*src[1] + B*src[2] + C*src[stride+1] + D*src[stride+2] + 32 - 4) >> 6));
725 dst[2] = avg2(dst[2], ((A*src[2] + B*src[3] + C*src[stride+2] + D*src[stride+3] + 32 - 4) >> 6));
726 dst[3] = avg2(dst[3], ((A*src[3] + B*src[4] + C*src[stride+3] + D*src[stride+4] + 32 - 4) >> 6));
727 dst[4] = avg2(dst[4], ((A*src[4] + B*src[5] + C*src[stride+4] + D*src[stride+5] + 32 - 4) >> 6));
728 dst[5] = avg2(dst[5], ((A*src[5] + B*src[6] + C*src[stride+5] + D*src[stride+6] + 32 - 4) >> 6));
729 dst[6] = avg2(dst[6], ((A*src[6] + B*src[7] + C*src[stride+6] + D*src[stride+7] + 32 - 4) >> 6));
730 dst[7] = avg2(dst[7], ((A*src[7] + B*src[8] + C*src[stride+7] + D*src[stride+8] + 32 - 4) >> 6));
736 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
738 static void sprite_h_c(uint8_t *dst, const uint8_t *src, int offset, int advance, int count)
741 int a = src[(offset >> 16) ];
742 int b = src[(offset >> 16) + 1];
743 *dst++ = a + ((b - a) * (offset&0xFFFF) >> 16);
748 static av_always_inline void sprite_v_template(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
749 int two_sprites, const uint8_t *src2a, const uint8_t *src2b, int offset2,
750 int alpha, int scaled, int width)
757 a1 = a1 + ((b1 - a1) * offset1 >> 16);
763 a2 = a2 + ((b2 - a2) * offset2 >> 16);
765 a1 = a1 + ((a2 - a1) * alpha >> 16);
771 static void sprite_v_single_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset, int width)
773 sprite_v_template(dst, src1a, src1b, offset, 0, NULL, NULL, 0, 0, 1, width);
776 static void sprite_v_double_noscale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src2a, int alpha, int width)
778 sprite_v_template(dst, src1a, NULL, 0, 1, src2a, NULL, 0, alpha, 0, width);
781 static void sprite_v_double_onescale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
782 const uint8_t *src2a, int alpha, int width)
784 sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, NULL, 0, alpha, 1, width);
787 static void sprite_v_double_twoscale_c(uint8_t *dst, const uint8_t *src1a, const uint8_t *src1b, int offset1,
788 const uint8_t *src2a, const uint8_t *src2b, int offset2,
789 int alpha, int width)
791 sprite_v_template(dst, src1a, src1b, offset1, 1, src2a, src2b, offset2, alpha, 2, width);
796 av_cold void ff_vc1dsp_init(VC1DSPContext* dsp) {
797 dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;
798 dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
799 dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;
800 dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;
801 dsp->vc1_inv_trans_8x8_dc = vc1_inv_trans_8x8_dc_c;
802 dsp->vc1_inv_trans_4x8_dc = vc1_inv_trans_4x8_dc_c;
803 dsp->vc1_inv_trans_8x4_dc = vc1_inv_trans_8x4_dc_c;
804 dsp->vc1_inv_trans_4x4_dc = vc1_inv_trans_4x4_dc_c;
805 dsp->vc1_h_overlap = vc1_h_overlap_c;
806 dsp->vc1_v_overlap = vc1_v_overlap_c;
807 dsp->vc1_h_s_overlap = vc1_h_s_overlap_c;
808 dsp->vc1_v_s_overlap = vc1_v_s_overlap_c;
809 dsp->vc1_v_loop_filter4 = vc1_v_loop_filter4_c;
810 dsp->vc1_h_loop_filter4 = vc1_h_loop_filter4_c;
811 dsp->vc1_v_loop_filter8 = vc1_v_loop_filter8_c;
812 dsp->vc1_h_loop_filter8 = vc1_h_loop_filter8_c;
813 dsp->vc1_v_loop_filter16 = vc1_v_loop_filter16_c;
814 dsp->vc1_h_loop_filter16 = vc1_h_loop_filter16_c;
816 dsp->put_vc1_mspel_pixels_tab[ 0] = ff_put_pixels8x8_c;
817 dsp->put_vc1_mspel_pixels_tab[ 1] = put_vc1_mspel_mc10_c;
818 dsp->put_vc1_mspel_pixels_tab[ 2] = put_vc1_mspel_mc20_c;
819 dsp->put_vc1_mspel_pixels_tab[ 3] = put_vc1_mspel_mc30_c;
820 dsp->put_vc1_mspel_pixels_tab[ 4] = put_vc1_mspel_mc01_c;
821 dsp->put_vc1_mspel_pixels_tab[ 5] = put_vc1_mspel_mc11_c;
822 dsp->put_vc1_mspel_pixels_tab[ 6] = put_vc1_mspel_mc21_c;
823 dsp->put_vc1_mspel_pixels_tab[ 7] = put_vc1_mspel_mc31_c;
824 dsp->put_vc1_mspel_pixels_tab[ 8] = put_vc1_mspel_mc02_c;
825 dsp->put_vc1_mspel_pixels_tab[ 9] = put_vc1_mspel_mc12_c;
826 dsp->put_vc1_mspel_pixels_tab[10] = put_vc1_mspel_mc22_c;
827 dsp->put_vc1_mspel_pixels_tab[11] = put_vc1_mspel_mc32_c;
828 dsp->put_vc1_mspel_pixels_tab[12] = put_vc1_mspel_mc03_c;
829 dsp->put_vc1_mspel_pixels_tab[13] = put_vc1_mspel_mc13_c;
830 dsp->put_vc1_mspel_pixels_tab[14] = put_vc1_mspel_mc23_c;
831 dsp->put_vc1_mspel_pixels_tab[15] = put_vc1_mspel_mc33_c;
833 dsp->avg_vc1_mspel_pixels_tab[ 0] = ff_avg_pixels8x8_c;
834 dsp->avg_vc1_mspel_pixels_tab[ 1] = avg_vc1_mspel_mc10_c;
835 dsp->avg_vc1_mspel_pixels_tab[ 2] = avg_vc1_mspel_mc20_c;
836 dsp->avg_vc1_mspel_pixels_tab[ 3] = avg_vc1_mspel_mc30_c;
837 dsp->avg_vc1_mspel_pixels_tab[ 4] = avg_vc1_mspel_mc01_c;
838 dsp->avg_vc1_mspel_pixels_tab[ 5] = avg_vc1_mspel_mc11_c;
839 dsp->avg_vc1_mspel_pixels_tab[ 6] = avg_vc1_mspel_mc21_c;
840 dsp->avg_vc1_mspel_pixels_tab[ 7] = avg_vc1_mspel_mc31_c;
841 dsp->avg_vc1_mspel_pixels_tab[ 8] = avg_vc1_mspel_mc02_c;
842 dsp->avg_vc1_mspel_pixels_tab[ 9] = avg_vc1_mspel_mc12_c;
843 dsp->avg_vc1_mspel_pixels_tab[10] = avg_vc1_mspel_mc22_c;
844 dsp->avg_vc1_mspel_pixels_tab[11] = avg_vc1_mspel_mc32_c;
845 dsp->avg_vc1_mspel_pixels_tab[12] = avg_vc1_mspel_mc03_c;
846 dsp->avg_vc1_mspel_pixels_tab[13] = avg_vc1_mspel_mc13_c;
847 dsp->avg_vc1_mspel_pixels_tab[14] = avg_vc1_mspel_mc23_c;
848 dsp->avg_vc1_mspel_pixels_tab[15] = avg_vc1_mspel_mc33_c;
850 dsp->put_no_rnd_vc1_chroma_pixels_tab[0]= put_no_rnd_vc1_chroma_mc8_c;
851 dsp->avg_no_rnd_vc1_chroma_pixels_tab[0]= avg_no_rnd_vc1_chroma_mc8_c;
852 dsp->put_no_rnd_vc1_chroma_pixels_tab[1] = put_no_rnd_vc1_chroma_mc4_c;
854 #if CONFIG_WMV3IMAGE_DECODER || CONFIG_VC1IMAGE_DECODER
855 dsp->sprite_h = sprite_h_c;
856 dsp->sprite_v_single = sprite_v_single_c;
857 dsp->sprite_v_double_noscale = sprite_v_double_noscale_c;
858 dsp->sprite_v_double_onescale = sprite_v_double_onescale_c;
859 dsp->sprite_v_double_twoscale = sprite_v_double_twoscale_c;
863 ff_vc1dsp_init_altivec(dsp);
865 ff_vc1dsp_init_mmx(dsp);