2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
11 #include "./vpx_config.h"
12 #include "./vp9_rtcd.h"
14 #include "vpx_mem/vpx_mem.h"
15 #include "vpx_ports/mem.h"
16 #include "vpx_ports/vpx_once.h"
18 #include "vp9/common/vp9_reconintra.h"
19 #include "vp9/common/vp9_onyxc_int.h"
21 const TX_TYPE intra_mode_to_tx_type_lookup[INTRA_MODES] = {
37 NEED_ABOVERIGHT = 1 << 3,
40 static const uint8_t extend_modes[INTRA_MODES] = {
41 NEED_ABOVE | NEED_LEFT, // DC
44 NEED_ABOVERIGHT, // D45
45 NEED_LEFT | NEED_ABOVE, // D135
46 NEED_LEFT | NEED_ABOVE, // D117
47 NEED_LEFT | NEED_ABOVE, // D153
49 NEED_ABOVERIGHT, // D63
50 NEED_LEFT | NEED_ABOVE, // TM
53 // This serves as a wrapper function, so that all the prediction functions
54 // can be unified and accessed as a pointer array. Note that the boundary
55 // above and left are not necessarily used all the time.
56 #define intra_pred_sized(type, size) \
57 void vp9_##type##_predictor_##size##x##size##_c(uint8_t *dst, \
59 const uint8_t *above, \
60 const uint8_t *left) { \
61 type##_predictor(dst, stride, size, above, left); \
64 #if CONFIG_VP9_HIGHBITDEPTH
65 #define intra_pred_highbd_sized(type, size) \
66 void vp9_highbd_##type##_predictor_##size##x##size##_c( \
67 uint16_t *dst, ptrdiff_t stride, const uint16_t *above, \
68 const uint16_t *left, int bd) { \
69 highbd_##type##_predictor(dst, stride, size, above, left, bd); \
72 #define intra_pred_allsizes(type) \
73 intra_pred_sized(type, 4) \
74 intra_pred_sized(type, 8) \
75 intra_pred_sized(type, 16) \
76 intra_pred_sized(type, 32) \
77 intra_pred_highbd_sized(type, 4) \
78 intra_pred_highbd_sized(type, 8) \
79 intra_pred_highbd_sized(type, 16) \
80 intra_pred_highbd_sized(type, 32)
82 #define intra_pred_no_4x4(type) \
83 intra_pred_sized(type, 8) \
84 intra_pred_sized(type, 16) \
85 intra_pred_sized(type, 32) \
86 intra_pred_highbd_sized(type, 4) \
87 intra_pred_highbd_sized(type, 8) \
88 intra_pred_highbd_sized(type, 16) \
89 intra_pred_highbd_sized(type, 32)
93 #define intra_pred_allsizes(type) \
94 intra_pred_sized(type, 4) \
95 intra_pred_sized(type, 8) \
96 intra_pred_sized(type, 16) \
97 intra_pred_sized(type, 32)
99 #define intra_pred_no_4x4(type) \
100 intra_pred_sized(type, 8) \
101 intra_pred_sized(type, 16) \
102 intra_pred_sized(type, 32)
103 #endif // CONFIG_VP9_HIGHBITDEPTH
105 #if CONFIG_VP9_HIGHBITDEPTH
106 static INLINE void highbd_d207_predictor(uint16_t *dst, ptrdiff_t stride,
107 int bs, const uint16_t *above,
108 const uint16_t *left, int bd) {
114 for (r = 0; r < bs - 1; ++r) {
115 dst[r * stride] = ROUND_POWER_OF_TWO(left[r] + left[r + 1], 1);
117 dst[(bs - 1) * stride] = left[bs - 1];
121 for (r = 0; r < bs - 2; ++r) {
122 dst[r * stride] = ROUND_POWER_OF_TWO(left[r] + left[r + 1] * 2 +
125 dst[(bs - 2) * stride] = ROUND_POWER_OF_TWO(left[bs - 2] +
126 left[bs - 1] * 3, 2);
127 dst[(bs - 1) * stride] = left[bs - 1];
131 for (c = 0; c < bs - 2; ++c)
132 dst[(bs - 1) * stride + c] = left[bs - 1];
134 for (r = bs - 2; r >= 0; --r) {
135 for (c = 0; c < bs - 2; ++c)
136 dst[r * stride + c] = dst[(r + 1) * stride + c - 2];
140 static INLINE void highbd_d63_predictor(uint16_t *dst, ptrdiff_t stride,
141 int bs, const uint16_t *above,
142 const uint16_t *left, int bd) {
146 for (r = 0; r < bs; ++r) {
147 for (c = 0; c < bs; ++c) {
148 dst[c] = r & 1 ? ROUND_POWER_OF_TWO(above[r/2 + c] +
149 above[r/2 + c + 1] * 2 +
150 above[r/2 + c + 2], 2)
151 : ROUND_POWER_OF_TWO(above[r/2 + c] +
152 above[r/2 + c + 1], 1);
158 static INLINE void highbd_d45_predictor(uint16_t *dst, ptrdiff_t stride, int bs,
159 const uint16_t *above,
160 const uint16_t *left, int bd) {
164 for (r = 0; r < bs; ++r) {
165 for (c = 0; c < bs; ++c) {
166 dst[c] = r + c + 2 < bs * 2 ? ROUND_POWER_OF_TWO(above[r + c] +
167 above[r + c + 1] * 2 +
175 static INLINE void highbd_d117_predictor(uint16_t *dst, ptrdiff_t stride,
176 int bs, const uint16_t *above,
177 const uint16_t *left, int bd) {
182 for (c = 0; c < bs; c++)
183 dst[c] = ROUND_POWER_OF_TWO(above[c - 1] + above[c], 1);
187 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2);
188 for (c = 1; c < bs; c++)
189 dst[c] = ROUND_POWER_OF_TWO(above[c - 2] + above[c - 1] * 2 + above[c], 2);
192 // the rest of first col
193 dst[0] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2);
194 for (r = 3; r < bs; ++r)
195 dst[(r - 2) * stride] = ROUND_POWER_OF_TWO(left[r - 3] + left[r - 2] * 2 +
198 // the rest of the block
199 for (r = 2; r < bs; ++r) {
200 for (c = 1; c < bs; c++)
201 dst[c] = dst[-2 * stride + c - 1];
206 static INLINE void highbd_d135_predictor(uint16_t *dst, ptrdiff_t stride,
207 int bs, const uint16_t *above,
208 const uint16_t *left, int bd) {
211 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2);
212 for (c = 1; c < bs; c++)
213 dst[c] = ROUND_POWER_OF_TWO(above[c - 2] + above[c - 1] * 2 + above[c], 2);
215 dst[stride] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2);
216 for (r = 2; r < bs; ++r)
217 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 2] + left[r - 1] * 2 +
221 for (r = 1; r < bs; ++r) {
222 for (c = 1; c < bs; c++)
223 dst[c] = dst[-stride + c - 1];
228 static INLINE void highbd_d153_predictor(uint16_t *dst, ptrdiff_t stride,
229 int bs, const uint16_t *above,
230 const uint16_t *left, int bd) {
233 dst[0] = ROUND_POWER_OF_TWO(above[-1] + left[0], 1);
234 for (r = 1; r < bs; r++)
235 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 1] + left[r], 1);
238 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2);
239 dst[stride] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2);
240 for (r = 2; r < bs; r++)
241 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 2] + left[r - 1] * 2 +
245 for (c = 0; c < bs - 2; c++)
246 dst[c] = ROUND_POWER_OF_TWO(above[c - 1] + above[c] * 2 + above[c + 1], 2);
249 for (r = 1; r < bs; ++r) {
250 for (c = 0; c < bs - 2; c++)
251 dst[c] = dst[-stride + c - 2];
256 static INLINE void highbd_v_predictor(uint16_t *dst, ptrdiff_t stride,
257 int bs, const uint16_t *above,
258 const uint16_t *left, int bd) {
262 for (r = 0; r < bs; r++) {
263 memcpy(dst, above, bs * sizeof(uint16_t));
268 static INLINE void highbd_h_predictor(uint16_t *dst, ptrdiff_t stride,
269 int bs, const uint16_t *above,
270 const uint16_t *left, int bd) {
274 for (r = 0; r < bs; r++) {
275 vpx_memset16(dst, left[r], bs);
280 static INLINE void highbd_tm_predictor(uint16_t *dst, ptrdiff_t stride,
281 int bs, const uint16_t *above,
282 const uint16_t *left, int bd) {
284 int ytop_left = above[-1];
287 for (r = 0; r < bs; r++) {
288 for (c = 0; c < bs; c++)
289 dst[c] = clip_pixel_highbd(left[r] + above[c] - ytop_left, bd);
294 static INLINE void highbd_dc_128_predictor(uint16_t *dst, ptrdiff_t stride,
295 int bs, const uint16_t *above,
296 const uint16_t *left, int bd) {
301 for (r = 0; r < bs; r++) {
302 vpx_memset16(dst, 128 << (bd - 8), bs);
307 static INLINE void highbd_dc_left_predictor(uint16_t *dst, ptrdiff_t stride,
308 int bs, const uint16_t *above,
309 const uint16_t *left, int bd) {
310 int i, r, expected_dc, sum = 0;
314 for (i = 0; i < bs; i++)
316 expected_dc = (sum + (bs >> 1)) / bs;
318 for (r = 0; r < bs; r++) {
319 vpx_memset16(dst, expected_dc, bs);
324 static INLINE void highbd_dc_top_predictor(uint16_t *dst, ptrdiff_t stride,
325 int bs, const uint16_t *above,
326 const uint16_t *left, int bd) {
327 int i, r, expected_dc, sum = 0;
331 for (i = 0; i < bs; i++)
333 expected_dc = (sum + (bs >> 1)) / bs;
335 for (r = 0; r < bs; r++) {
336 vpx_memset16(dst, expected_dc, bs);
341 static INLINE void highbd_dc_predictor(uint16_t *dst, ptrdiff_t stride,
342 int bs, const uint16_t *above,
343 const uint16_t *left, int bd) {
344 int i, r, expected_dc, sum = 0;
345 const int count = 2 * bs;
348 for (i = 0; i < bs; i++) {
353 expected_dc = (sum + (count >> 1)) / count;
355 for (r = 0; r < bs; r++) {
356 vpx_memset16(dst, expected_dc, bs);
360 #endif // CONFIG_VP9_HIGHBITDEPTH
362 #define DST(x, y) dst[(x) + (y) * stride]
363 #define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2)
365 static INLINE void d207_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
366 const uint8_t *above, const uint8_t *left) {
370 for (r = 0; r < bs - 1; ++r)
371 dst[r * stride] = ROUND_POWER_OF_TWO(left[r] + left[r + 1], 1);
372 dst[(bs - 1) * stride] = left[bs - 1];
376 for (r = 0; r < bs - 2; ++r)
377 dst[r * stride] = ROUND_POWER_OF_TWO(left[r] + left[r + 1] * 2 +
379 dst[(bs - 2) * stride] = ROUND_POWER_OF_TWO(left[bs - 2] +
380 left[bs - 1] * 3, 2);
381 dst[(bs - 1) * stride] = left[bs - 1];
385 for (c = 0; c < bs - 2; ++c)
386 dst[(bs - 1) * stride + c] = left[bs - 1];
388 for (r = bs - 2; r >= 0; --r)
389 for (c = 0; c < bs - 2; ++c)
390 dst[r * stride + c] = dst[(r + 1) * stride + c - 2];
392 intra_pred_allsizes(d207)
394 static INLINE void d63_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
395 const uint8_t *above, const uint8_t *left) {
398 for (r = 0; r < bs; ++r) {
399 for (c = 0; c < bs; ++c)
400 dst[c] = r & 1 ? ROUND_POWER_OF_TWO(above[r/2 + c] +
401 above[r/2 + c + 1] * 2 +
402 above[r/2 + c + 2], 2)
403 : ROUND_POWER_OF_TWO(above[r/2 + c] +
404 above[r/2 + c + 1], 1);
408 intra_pred_allsizes(d63)
410 void vp9_d45_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
411 const uint8_t *above, const uint8_t *left) {
412 const int A = above[0];
413 const int B = above[1];
414 const int C = above[2];
415 const int D = above[3];
416 const int E = above[4];
417 const int F = above[5];
418 const int G = above[6];
419 const int H = above[7];
422 DST(0, 0) = AVG3(A, B, C);
423 DST(1, 0) = DST(0, 1) = AVG3(B, C, D);
424 DST(2, 0) = DST(1, 1) = DST(0, 2) = AVG3(C, D, E);
425 DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);
426 DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
427 DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
428 DST(3, 3) = AVG3(G, H, H);
431 static INLINE void d45_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
432 const uint8_t *above, const uint8_t *left) {
435 for (r = 0; r < bs; ++r) {
436 for (c = 0; c < bs; ++c)
437 dst[c] = r + c + 2 < bs * 2 ? ROUND_POWER_OF_TWO(above[r + c] +
438 above[r + c + 1] * 2 +
444 intra_pred_no_4x4(d45)
446 static INLINE void d117_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
447 const uint8_t *above, const uint8_t *left) {
451 for (c = 0; c < bs; c++)
452 dst[c] = ROUND_POWER_OF_TWO(above[c - 1] + above[c], 1);
456 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2);
457 for (c = 1; c < bs; c++)
458 dst[c] = ROUND_POWER_OF_TWO(above[c - 2] + above[c - 1] * 2 + above[c], 2);
461 // the rest of first col
462 dst[0] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2);
463 for (r = 3; r < bs; ++r)
464 dst[(r - 2) * stride] = ROUND_POWER_OF_TWO(left[r - 3] + left[r - 2] * 2 +
467 // the rest of the block
468 for (r = 2; r < bs; ++r) {
469 for (c = 1; c < bs; c++)
470 dst[c] = dst[-2 * stride + c - 1];
474 intra_pred_allsizes(d117)
476 static INLINE void d135_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
477 const uint8_t *above, const uint8_t *left) {
479 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2);
480 for (c = 1; c < bs; c++)
481 dst[c] = ROUND_POWER_OF_TWO(above[c - 2] + above[c - 1] * 2 + above[c], 2);
483 dst[stride] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2);
484 for (r = 2; r < bs; ++r)
485 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 2] + left[r - 1] * 2 +
489 for (r = 1; r < bs; ++r) {
490 for (c = 1; c < bs; c++)
491 dst[c] = dst[-stride + c - 1];
495 intra_pred_allsizes(d135)
497 static INLINE void d153_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
498 const uint8_t *above, const uint8_t *left) {
500 dst[0] = ROUND_POWER_OF_TWO(above[-1] + left[0], 1);
501 for (r = 1; r < bs; r++)
502 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 1] + left[r], 1);
505 dst[0] = ROUND_POWER_OF_TWO(left[0] + above[-1] * 2 + above[0], 2);
506 dst[stride] = ROUND_POWER_OF_TWO(above[-1] + left[0] * 2 + left[1], 2);
507 for (r = 2; r < bs; r++)
508 dst[r * stride] = ROUND_POWER_OF_TWO(left[r - 2] + left[r - 1] * 2 +
512 for (c = 0; c < bs - 2; c++)
513 dst[c] = ROUND_POWER_OF_TWO(above[c - 1] + above[c] * 2 + above[c + 1], 2);
516 for (r = 1; r < bs; ++r) {
517 for (c = 0; c < bs - 2; c++)
518 dst[c] = dst[-stride + c - 2];
522 intra_pred_allsizes(d153)
524 static INLINE void v_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
525 const uint8_t *above, const uint8_t *left) {
529 for (r = 0; r < bs; r++) {
530 memcpy(dst, above, bs);
534 intra_pred_allsizes(v)
536 static INLINE void h_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
537 const uint8_t *above, const uint8_t *left) {
541 for (r = 0; r < bs; r++) {
542 memset(dst, left[r], bs);
546 intra_pred_allsizes(h)
548 static INLINE void tm_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
549 const uint8_t *above, const uint8_t *left) {
551 int ytop_left = above[-1];
553 for (r = 0; r < bs; r++) {
554 for (c = 0; c < bs; c++)
555 dst[c] = clip_pixel(left[r] + above[c] - ytop_left);
559 intra_pred_allsizes(tm)
561 static INLINE void dc_128_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
562 const uint8_t *above, const uint8_t *left) {
567 for (r = 0; r < bs; r++) {
568 memset(dst, 128, bs);
572 intra_pred_allsizes(dc_128)
574 static INLINE void dc_left_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
575 const uint8_t *above,
576 const uint8_t *left) {
577 int i, r, expected_dc, sum = 0;
580 for (i = 0; i < bs; i++)
582 expected_dc = (sum + (bs >> 1)) / bs;
584 for (r = 0; r < bs; r++) {
585 memset(dst, expected_dc, bs);
589 intra_pred_allsizes(dc_left)
591 static INLINE void dc_top_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
592 const uint8_t *above, const uint8_t *left) {
593 int i, r, expected_dc, sum = 0;
596 for (i = 0; i < bs; i++)
598 expected_dc = (sum + (bs >> 1)) / bs;
600 for (r = 0; r < bs; r++) {
601 memset(dst, expected_dc, bs);
605 intra_pred_allsizes(dc_top)
607 static INLINE void dc_predictor(uint8_t *dst, ptrdiff_t stride, int bs,
608 const uint8_t *above, const uint8_t *left) {
609 int i, r, expected_dc, sum = 0;
610 const int count = 2 * bs;
612 for (i = 0; i < bs; i++) {
617 expected_dc = (sum + (count >> 1)) / count;
619 for (r = 0; r < bs; r++) {
620 memset(dst, expected_dc, bs);
624 intra_pred_allsizes(dc)
625 #undef intra_pred_allsizes
627 typedef void (*intra_pred_fn)(uint8_t *dst, ptrdiff_t stride,
628 const uint8_t *above, const uint8_t *left);
630 static intra_pred_fn pred[INTRA_MODES][TX_SIZES];
631 static intra_pred_fn dc_pred[2][2][TX_SIZES];
633 #if CONFIG_VP9_HIGHBITDEPTH
634 typedef void (*intra_high_pred_fn)(uint16_t *dst, ptrdiff_t stride,
635 const uint16_t *above, const uint16_t *left,
637 static intra_high_pred_fn pred_high[INTRA_MODES][4];
638 static intra_high_pred_fn dc_pred_high[2][2][4];
639 #endif // CONFIG_VP9_HIGHBITDEPTH
641 static void vp9_init_intra_predictors_internal(void) {
642 #define INIT_ALL_SIZES(p, type) \
643 p[TX_4X4] = vp9_##type##_predictor_4x4; \
644 p[TX_8X8] = vp9_##type##_predictor_8x8; \
645 p[TX_16X16] = vp9_##type##_predictor_16x16; \
646 p[TX_32X32] = vp9_##type##_predictor_32x32
648 INIT_ALL_SIZES(pred[V_PRED], v);
649 INIT_ALL_SIZES(pred[H_PRED], h);
650 INIT_ALL_SIZES(pred[D207_PRED], d207);
651 INIT_ALL_SIZES(pred[D45_PRED], d45);
652 INIT_ALL_SIZES(pred[D63_PRED], d63);
653 INIT_ALL_SIZES(pred[D117_PRED], d117);
654 INIT_ALL_SIZES(pred[D135_PRED], d135);
655 INIT_ALL_SIZES(pred[D153_PRED], d153);
656 INIT_ALL_SIZES(pred[TM_PRED], tm);
658 INIT_ALL_SIZES(dc_pred[0][0], dc_128);
659 INIT_ALL_SIZES(dc_pred[0][1], dc_top);
660 INIT_ALL_SIZES(dc_pred[1][0], dc_left);
661 INIT_ALL_SIZES(dc_pred[1][1], dc);
663 #if CONFIG_VP9_HIGHBITDEPTH
664 INIT_ALL_SIZES(pred_high[V_PRED], highbd_v);
665 INIT_ALL_SIZES(pred_high[H_PRED], highbd_h);
666 INIT_ALL_SIZES(pred_high[D207_PRED], highbd_d207);
667 INIT_ALL_SIZES(pred_high[D45_PRED], highbd_d45);
668 INIT_ALL_SIZES(pred_high[D63_PRED], highbd_d63);
669 INIT_ALL_SIZES(pred_high[D117_PRED], highbd_d117);
670 INIT_ALL_SIZES(pred_high[D135_PRED], highbd_d135);
671 INIT_ALL_SIZES(pred_high[D153_PRED], highbd_d153);
672 INIT_ALL_SIZES(pred_high[TM_PRED], highbd_tm);
674 INIT_ALL_SIZES(dc_pred_high[0][0], highbd_dc_128);
675 INIT_ALL_SIZES(dc_pred_high[0][1], highbd_dc_top);
676 INIT_ALL_SIZES(dc_pred_high[1][0], highbd_dc_left);
677 INIT_ALL_SIZES(dc_pred_high[1][1], highbd_dc);
678 #endif // CONFIG_VP9_HIGHBITDEPTH
680 #undef intra_pred_allsizes
683 #if CONFIG_VP9_HIGHBITDEPTH
684 static void build_intra_predictors_high(const MACROBLOCKD *xd,
689 PREDICTION_MODE mode,
697 uint16_t *dst = CONVERT_TO_SHORTPTR(dst8);
698 uint16_t *ref = CONVERT_TO_SHORTPTR(ref8);
699 DECLARE_ALIGNED(16, uint16_t, left_col[32]);
700 DECLARE_ALIGNED(16, uint16_t, above_data[64 + 16]);
701 uint16_t *above_row = above_data + 16;
702 const uint16_t *const_above_row = above_row;
703 const int bs = 4 << tx_size;
704 int frame_width, frame_height;
706 const struct macroblockd_plane *const pd = &xd->plane[plane];
708 int base = 128 << (bd - 8);
709 // 127 127 127 .. 127 127 127 127 127 127
713 // 129 G H .. S T T T T T
715 // Get current frame pointer, width and height.
717 frame_width = xd->cur_buf->y_width;
718 frame_height = xd->cur_buf->y_height;
720 frame_width = xd->cur_buf->uv_width;
721 frame_height = xd->cur_buf->uv_height;
724 // Get block position in current frame.
725 x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
726 y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
729 if (left_available) {
730 if (xd->mb_to_bottom_edge < 0) {
731 /* slower path if the block needs border extension */
732 if (y0 + bs <= frame_height) {
733 for (i = 0; i < bs; ++i)
734 left_col[i] = ref[i * ref_stride - 1];
736 const int extend_bottom = frame_height - y0;
737 for (i = 0; i < extend_bottom; ++i)
738 left_col[i] = ref[i * ref_stride - 1];
740 left_col[i] = ref[(extend_bottom - 1) * ref_stride - 1];
743 /* faster path if the block does not need extension */
744 for (i = 0; i < bs; ++i)
745 left_col[i] = ref[i * ref_stride - 1];
748 // TODO(Peter): this value should probably change for high bitdepth
749 vpx_memset16(left_col, base + 1, bs);
752 // TODO(hkuang) do not extend 2*bs pixels for all modes.
755 const uint16_t *above_ref = ref - ref_stride;
756 if (xd->mb_to_right_edge < 0) {
757 /* slower path if the block needs border extension */
758 if (x0 + 2 * bs <= frame_width) {
759 if (right_available && bs == 4) {
760 memcpy(above_row, above_ref, 2 * bs * sizeof(uint16_t));
762 memcpy(above_row, above_ref, bs * sizeof(uint16_t));
763 vpx_memset16(above_row + bs, above_row[bs - 1], bs);
765 } else if (x0 + bs <= frame_width) {
766 const int r = frame_width - x0;
767 if (right_available && bs == 4) {
768 memcpy(above_row, above_ref, r * sizeof(uint16_t));
769 vpx_memset16(above_row + r, above_row[r - 1],
770 x0 + 2 * bs - frame_width);
772 memcpy(above_row, above_ref, bs * sizeof(uint16_t));
773 vpx_memset16(above_row + bs, above_row[bs - 1], bs);
775 } else if (x0 <= frame_width) {
776 const int r = frame_width - x0;
777 memcpy(above_row, above_ref, r * sizeof(uint16_t));
778 vpx_memset16(above_row + r, above_row[r - 1],
779 x0 + 2 * bs - frame_width);
781 // TODO(Peter) this value should probably change for high bitdepth
782 above_row[-1] = left_available ? above_ref[-1] : (base+1);
784 /* faster path if the block does not need extension */
785 if (bs == 4 && right_available && left_available) {
786 const_above_row = above_ref;
788 memcpy(above_row, above_ref, bs * sizeof(uint16_t));
789 if (bs == 4 && right_available)
790 memcpy(above_row + bs, above_ref + bs, bs * sizeof(uint16_t));
792 vpx_memset16(above_row + bs, above_row[bs - 1], bs);
793 // TODO(Peter): this value should probably change for high bitdepth
794 above_row[-1] = left_available ? above_ref[-1] : (base+1);
798 vpx_memset16(above_row, base - 1, bs * 2);
799 // TODO(Peter): this value should probably change for high bitdepth
800 above_row[-1] = base - 1;
804 if (mode == DC_PRED) {
805 dc_pred_high[left_available][up_available][tx_size](dst, dst_stride,
809 pred_high[mode][tx_size](dst, dst_stride, const_above_row, left_col,
813 #endif // CONFIG_VP9_HIGHBITDEPTH
815 static void build_intra_predictors(const MACROBLOCKD *xd, const uint8_t *ref,
816 int ref_stride, uint8_t *dst, int dst_stride,
817 PREDICTION_MODE mode, TX_SIZE tx_size,
818 int up_available, int left_available,
819 int right_available, int x, int y,
822 DECLARE_ALIGNED(16, uint8_t, left_col[32]);
823 DECLARE_ALIGNED(16, uint8_t, above_data[64 + 16]);
824 uint8_t *above_row = above_data + 16;
825 const uint8_t *const_above_row = above_row;
826 const int bs = 4 << tx_size;
827 int frame_width, frame_height;
829 const struct macroblockd_plane *const pd = &xd->plane[plane];
831 // 127 127 127 .. 127 127 127 127 127 127
835 // 129 G H .. S T T T T T
838 // Get current frame pointer, width and height.
840 frame_width = xd->cur_buf->y_width;
841 frame_height = xd->cur_buf->y_height;
843 frame_width = xd->cur_buf->uv_width;
844 frame_height = xd->cur_buf->uv_height;
847 // Get block position in current frame.
848 x0 = (-xd->mb_to_left_edge >> (3 + pd->subsampling_x)) + x;
849 y0 = (-xd->mb_to_top_edge >> (3 + pd->subsampling_y)) + y;
852 if (extend_modes[mode] & NEED_LEFT) {
853 if (left_available) {
854 if (xd->mb_to_bottom_edge < 0) {
855 /* slower path if the block needs border extension */
856 if (y0 + bs <= frame_height) {
857 for (i = 0; i < bs; ++i)
858 left_col[i] = ref[i * ref_stride - 1];
860 const int extend_bottom = frame_height - y0;
861 for (i = 0; i < extend_bottom; ++i)
862 left_col[i] = ref[i * ref_stride - 1];
864 left_col[i] = ref[(extend_bottom - 1) * ref_stride - 1];
867 /* faster path if the block does not need extension */
868 for (i = 0; i < bs; ++i)
869 left_col[i] = ref[i * ref_stride - 1];
872 memset(left_col, 129, bs);
877 if (extend_modes[mode] & NEED_ABOVE) {
879 const uint8_t *above_ref = ref - ref_stride;
880 if (xd->mb_to_right_edge < 0) {
881 /* slower path if the block needs border extension */
882 if (x0 + bs <= frame_width) {
883 memcpy(above_row, above_ref, bs);
884 } else if (x0 <= frame_width) {
885 const int r = frame_width - x0;
886 memcpy(above_row, above_ref, r);
887 memset(above_row + r, above_row[r - 1], x0 + bs - frame_width);
890 /* faster path if the block does not need extension */
891 if (bs == 4 && right_available && left_available) {
892 const_above_row = above_ref;
894 memcpy(above_row, above_ref, bs);
897 above_row[-1] = left_available ? above_ref[-1] : 129;
899 memset(above_row, 127, bs);
905 if (extend_modes[mode] & NEED_ABOVERIGHT) {
907 const uint8_t *above_ref = ref - ref_stride;
908 if (xd->mb_to_right_edge < 0) {
909 /* slower path if the block needs border extension */
910 if (x0 + 2 * bs <= frame_width) {
911 if (right_available && bs == 4) {
912 memcpy(above_row, above_ref, 2 * bs);
914 memcpy(above_row, above_ref, bs);
915 memset(above_row + bs, above_row[bs - 1], bs);
917 } else if (x0 + bs <= frame_width) {
918 const int r = frame_width - x0;
919 if (right_available && bs == 4) {
920 memcpy(above_row, above_ref, r);
921 memset(above_row + r, above_row[r - 1], x0 + 2 * bs - frame_width);
923 memcpy(above_row, above_ref, bs);
924 memset(above_row + bs, above_row[bs - 1], bs);
926 } else if (x0 <= frame_width) {
927 const int r = frame_width - x0;
928 memcpy(above_row, above_ref, r);
929 memset(above_row + r, above_row[r - 1], x0 + 2 * bs - frame_width);
932 /* faster path if the block does not need extension */
933 if (bs == 4 && right_available && left_available) {
934 const_above_row = above_ref;
936 memcpy(above_row, above_ref, bs);
937 if (bs == 4 && right_available)
938 memcpy(above_row + bs, above_ref + bs, bs);
940 memset(above_row + bs, above_row[bs - 1], bs);
943 above_row[-1] = left_available ? above_ref[-1] : 129;
945 memset(above_row, 127, bs * 2);
951 if (mode == DC_PRED) {
952 dc_pred[left_available][up_available][tx_size](dst, dst_stride,
953 const_above_row, left_col);
955 pred[mode][tx_size](dst, dst_stride, const_above_row, left_col);
959 void vp9_predict_intra_block(const MACROBLOCKD *xd, int block_idx, int bwl_in,
960 TX_SIZE tx_size, PREDICTION_MODE mode,
961 const uint8_t *ref, int ref_stride,
962 uint8_t *dst, int dst_stride,
963 int aoff, int loff, int plane) {
964 const int bwl = bwl_in - tx_size;
965 const int wmask = (1 << bwl) - 1;
966 const int have_top = (block_idx >> bwl) || xd->up_available;
967 const int have_left = (block_idx & wmask) || xd->left_available;
968 const int have_right = ((block_idx & wmask) != wmask);
969 const int x = aoff * 4;
970 const int y = loff * 4;
973 #if CONFIG_VP9_HIGHBITDEPTH
974 if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
975 build_intra_predictors_high(xd, ref, ref_stride, dst, dst_stride, mode,
976 tx_size, have_top, have_left, have_right,
977 x, y, plane, xd->bd);
981 build_intra_predictors(xd, ref, ref_stride, dst, dst_stride, mode, tx_size,
982 have_top, have_left, have_right, x, y, plane);
985 void vp9_init_intra_predictors(void) {
986 once(vp9_init_intra_predictors_internal);