vp9_blockd.h 28.5 KB
Newer Older
John Koleszar's avatar
John Koleszar committed
1
/*
2
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
John Koleszar's avatar
John Koleszar committed
3
 *
4
 *  Use of this source code is governed by a BSD-style license
5
6
 *  that can be found in the LICENSE file in the root of the source
 *  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.
John Koleszar's avatar
John Koleszar committed
9
10
11
 */


12
13
#ifndef VP9_COMMON_VP9_BLOCKD_H_
#define VP9_COMMON_VP9_BLOCKD_H_
John Koleszar's avatar
John Koleszar committed
14

15
#include "./vpx_config.h"
John Koleszar's avatar
John Koleszar committed
16
#include "vpx_scale/yv12config.h"
17
#include "vp9/common/vp9_convolve.h"
18
19
#include "vp9/common/vp9_mv.h"
#include "vp9/common/vp9_treecoder.h"
John Koleszar's avatar
John Koleszar committed
20
#include "vpx_ports/mem.h"
21
#include "vp9/common/vp9_common.h"
22
#include "vp9/common/vp9_enums.h"
John Koleszar's avatar
John Koleszar committed
23

24
25
#define MAX_MB_SEGMENTS     8
#define MB_SEG_TREE_PROBS   (MAX_MB_SEGMENTS-1)
26
#define PREDICTION_PROBS 3
27

28
29
30
31
#define DEFAULT_PRED_PROB_0 120
#define DEFAULT_PRED_PROB_1 80
#define DEFAULT_PRED_PROB_2 40

32
33
#define MBSKIP_CONTEXTS 3

John Koleszar's avatar
John Koleszar committed
34
35
36
#define MAX_REF_LF_DELTAS       4
#define MAX_MODE_LF_DELTAS      4

37
/* Segment Feature Masks */
John Koleszar's avatar
John Koleszar committed
38
39
#define SEGMENT_DELTADATA   0
#define SEGMENT_ABSDATA     1
Paul Wilkins's avatar
Paul Wilkins committed
40
#define MAX_MV_REFS 9
Paul Wilkins's avatar
Paul Wilkins committed
41
#define MAX_MV_REF_CANDIDATES 2
John Koleszar's avatar
John Koleszar committed
42

Dmitry Kovalev's avatar
Dmitry Kovalev committed
43
typedef enum {
44
  PLANE_TYPE_Y_WITH_DC,
45
  PLANE_TYPE_UV,
46
} PLANE_TYPE;
Scott LaVarnway's avatar
Scott LaVarnway committed
47

48
typedef char ENTROPY_CONTEXT;
John Koleszar's avatar
John Koleszar committed
49

50
51
typedef char PARTITION_CONTEXT;

52
53
54
55
static INLINE int combine_entropy_contexts(ENTROPY_CONTEXT a,
                                           ENTROPY_CONTEXT b) {
  return (a != 0) + (b != 0);
}
John Koleszar's avatar
John Koleszar committed
56

John Koleszar's avatar
John Koleszar committed
57
58
59
typedef enum {
  KEY_FRAME = 0,
  INTER_FRAME = 1
John Koleszar's avatar
John Koleszar committed
60
61
} FRAME_TYPE;

Dmitry Kovalev's avatar
Dmitry Kovalev committed
62
typedef enum {
Adrian Grange's avatar
Adrian Grange committed
63
64
65
66
  EIGHTTAP_SMOOTH,
  EIGHTTAP,
  EIGHTTAP_SHARP,
  BILINEAR,
67
68
69
  SWITCHABLE  /* should be the last one */
} INTERPOLATIONFILTERTYPE;

Dmitry Kovalev's avatar
Dmitry Kovalev committed
70
typedef enum {
71
72
73
74
75
76
77
78
79
80
81
  DC_PRED,         // Average of above and left pixels
  V_PRED,          // Vertical
  H_PRED,          // Horizontal
  D45_PRED,        // Directional 45  deg = round(arctan(1/1) * 180/pi)
  D135_PRED,       // Directional 135 deg = 180 - 45
  D117_PRED,       // Directional 117 deg = 180 - 63
  D153_PRED,       // Directional 153 deg = 180 - 27
  D27_PRED,        // Directional 27  deg = round(arctan(1/2) * 180/pi)
  D63_PRED,        // Directional 63  deg = round(arctan(2/1) * 180/pi)
  TM_PRED,         // True-motion
  I4X4_PRED,       // Each 4x4 subblock has its own mode
John Koleszar's avatar
John Koleszar committed
82
83
84
85
86
87
  NEARESTMV,
  NEARMV,
  ZEROMV,
  NEWMV,
  SPLITMV,
  MB_MODE_COUNT
John Koleszar's avatar
John Koleszar committed
88
89
} MB_PREDICTION_MODE;

90
91
92
93
94
static INLINE int is_inter_mode(MB_PREDICTION_MODE mode) {
  return mode >= NEARESTMV && mode <= SPLITMV;
}


Paul Wilkins's avatar
Paul Wilkins committed
95
// Segment level features.
John Koleszar's avatar
John Koleszar committed
96
97
98
99
typedef enum {
  SEG_LVL_ALT_Q = 0,               // Use alternate Quantizer ....
  SEG_LVL_ALT_LF = 1,              // Use alternate loop filter value...
  SEG_LVL_REF_FRAME = 2,           // Optional Segment reference frame
Paul Wilkins's avatar
Paul Wilkins committed
100
  SEG_LVL_SKIP = 3,                // Optional Segment (0,0) + skip mode
Paul Wilkins's avatar
Paul Wilkins committed
101
  SEG_LVL_MAX = 4                  // Number of MB level features supported
Paul Wilkins's avatar
Paul Wilkins committed
102
} SEG_LVL_FEATURES;
John Koleszar's avatar
John Koleszar committed
103

Paul Wilkins's avatar
Paul Wilkins committed
104
// Segment level features.
John Koleszar's avatar
John Koleszar committed
105
typedef enum {
Yaowu Xu's avatar
Yaowu Xu committed
106
107
108
109
110
111
  TX_4X4 = 0,                      // 4x4 dct transform
  TX_8X8 = 1,                      // 8x8 dct transform
  TX_16X16 = 2,                    // 16x16 dct transform
  TX_SIZE_MAX_MB = 3,              // Number of different transforms available
  TX_32X32 = TX_SIZE_MAX_MB,       // 32x32 dct transform
  TX_SIZE_MAX_SB,                  // Number of transforms available to SBs
Paul Wilkins's avatar
Paul Wilkins committed
112
113
} TX_SIZE;

Jingning Han's avatar
Jingning Han committed
114
115
typedef enum {
  DCT_DCT   = 0,                      // DCT  in both horizontal and vertical
116
117
  ADST_DCT  = 1,                      // ADST in vertical, DCT in horizontal
  DCT_ADST  = 2,                      // DCT  in vertical, ADST in horizontal
Jingning Han's avatar
Jingning Han committed
118
119
120
  ADST_ADST = 3                       // ADST in both directions
} TX_TYPE;

Yaowu Xu's avatar
Yaowu Xu committed
121
#define VP9_YMODES  (I4X4_PRED + 1)
122
123
#define VP9_UV_MODES (TM_PRED + 1)
#define VP9_I32X32_MODES (TM_PRED + 1)
John Koleszar's avatar
John Koleszar committed
124

125
#define VP9_MVREFS (1 + SPLITMV - NEARESTMV)
John Koleszar's avatar
John Koleszar committed
126

Yaowu Xu's avatar
Yaowu Xu committed
127
#define WHT_UPSCALE_FACTOR 2
128

John Koleszar's avatar
John Koleszar committed
129
130
typedef enum {
  B_DC_PRED,          /* average of above and left pixels */
Yaowu Xu's avatar
Yaowu Xu committed
131
132
133
134
135
136
137
138
  B_V_PRED,          /* vertical prediction */
  B_H_PRED,          /* horizontal prediction */
  B_D45_PRED,
  B_D135_PRED,
  B_D117_PRED,
  B_D153_PRED,
  B_D27_PRED,
  B_D63_PRED,
John Koleszar's avatar
John Koleszar committed
139
  B_TM_PRED,
John Koleszar's avatar
John Koleszar committed
140

John Koleszar's avatar
John Koleszar committed
141
142
143
144
  LEFT4X4,
  ABOVE4X4,
  ZERO4X4,
  NEW4X4,
John Koleszar's avatar
John Koleszar committed
145

John Koleszar's avatar
John Koleszar committed
146
  B_MODE_COUNT
John Koleszar's avatar
John Koleszar committed
147
148
} B_PREDICTION_MODE;

149
#define VP9_BINTRAMODES (LEFT4X4)
150
#define VP9_SUBMVREFS (1 + NEW4X4 - LEFT4X4)
John Koleszar's avatar
John Koleszar committed
151

152
153
154
#define VP9_KF_BINTRAMODES (VP9_BINTRAMODES)   /* 10 */
#define VP9_NKF_BINTRAMODES (VP9_BINTRAMODES)  /* 10 */

John Koleszar's avatar
John Koleszar committed
155
156
157
158
/* For keyframes, intra block modes are predicted by the (already decoded)
   modes for the Y blocks to the left and above us; for interframes, there
   is a single probability table. */

John Koleszar's avatar
John Koleszar committed
159
160
161
162
union b_mode_info {
  struct {
    B_PREDICTION_MODE first;
  } as_mode;
163
  int_mv as_mv[2];  // first, second inter predictor motion vectors
164
};
John Koleszar's avatar
John Koleszar committed
165

John Koleszar's avatar
John Koleszar committed
166
typedef enum {
167
  NONE = -1,
John Koleszar's avatar
John Koleszar committed
168
169
170
171
172
  INTRA_FRAME = 0,
  LAST_FRAME = 1,
  GOLDEN_FRAME = 2,
  ALTREF_FRAME = 3,
  MAX_REF_FRAMES = 4
John Koleszar's avatar
John Koleszar committed
173
174
} MV_REFERENCE_FRAME;

175
static INLINE int b_width_log2(BLOCK_SIZE_TYPE sb_type) {
176
  switch (sb_type) {
177
178
179
#if CONFIG_AB4X4
    case BLOCK_SIZE_SB4X8:
#endif
180
    case BLOCK_SIZE_AB4X4: return 0;
181
182
183
#if CONFIG_AB4X4
    case BLOCK_SIZE_SB8X4:
#endif
184
185
    case BLOCK_SIZE_SB8X8:
    case BLOCK_SIZE_SB8X16: return 1;
186
    case BLOCK_SIZE_SB16X8:
187
    case BLOCK_SIZE_MB16X16:
188
    case BLOCK_SIZE_SB16X32: return 2;
189
    case BLOCK_SIZE_SB32X16:
190
191
    case BLOCK_SIZE_SB32X32:
    case BLOCK_SIZE_SB32X64: return 3;
192
    case BLOCK_SIZE_SB64X32:
193
    case BLOCK_SIZE_SB64X64: return 4;
194
195
196
197
    default: assert(0);
  }
}

198
static INLINE int b_height_log2(BLOCK_SIZE_TYPE sb_type) {
199
  switch (sb_type) {
200
201
202
#if CONFIG_AB4X4
    case BLOCK_SIZE_SB8X4:
#endif
203
    case BLOCK_SIZE_AB4X4: return 0;
204
205
206
#if CONFIG_AB4X4
    case BLOCK_SIZE_SB4X8:
#endif
207
208
    case BLOCK_SIZE_SB8X8:
    case BLOCK_SIZE_SB16X8: return 1;
209
    case BLOCK_SIZE_SB8X16:
210
    case BLOCK_SIZE_MB16X16:
211
    case BLOCK_SIZE_SB32X16: return 2;
212
    case BLOCK_SIZE_SB16X32:
213
214
    case BLOCK_SIZE_SB32X32:
    case BLOCK_SIZE_SB64X32: return 3;
215
    case BLOCK_SIZE_SB32X64:
216
    case BLOCK_SIZE_SB64X64: return 4;
217
218
219
    default: assert(0);
  }
}
Ronald S. Bultje's avatar
Ronald S. Bultje committed
220

221
222
static INLINE int mi_width_log2(BLOCK_SIZE_TYPE sb_type) {
  int a = b_width_log2(sb_type) - 1;
223
224
225
226
227
#if CONFIG_AB4X4
  // align 4x4 block to mode_info
  if (a < 0)
    a = 0;
#endif
228
229
  assert(a >= 0);
  return a;
230
231
}

232
233
static INLINE int mi_height_log2(BLOCK_SIZE_TYPE sb_type) {
  int a = b_height_log2(sb_type) - 1;
234
235
236
237
#if CONFIG_AB4X4
  if (a < 0)
    a = 0;
#endif
238
239
  assert(a >= 0);
  return a;
240
241
}

John Koleszar's avatar
John Koleszar committed
242
243
244
245
typedef struct {
  MB_PREDICTION_MODE mode, uv_mode;
  MV_REFERENCE_FRAME ref_frame, second_ref_frame;
  TX_SIZE txfm_size;
246
  int_mv mv[2]; // for each reference frame used
Paul Wilkins's avatar
Paul Wilkins committed
247
  int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
Deb Mukherjee's avatar
Deb Mukherjee committed
248
  int_mv best_mv, best_second_mv;
Paul Wilkins's avatar
Paul Wilkins committed
249

Paul Wilkins's avatar
Paul Wilkins committed
250
251
  int mb_mode_context[MAX_REF_FRAMES];

John Koleszar's avatar
John Koleszar committed
252
253
254
  unsigned char mb_skip_coeff;                                /* does this mb has coefficients at all, 1=no coefficients, 0=need decode tokens */
  unsigned char need_to_clamp_mvs;
  unsigned char need_to_clamp_secondmv;
255
  unsigned char segment_id;           // Segment id for current frame
John Koleszar's avatar
John Koleszar committed
256
257
258
259
260
261
262
263
264

  // Flags used for prediction status of various bistream signals
  unsigned char seg_id_predicted;
  unsigned char ref_predicted;

  // Indicates if the mb is part of the image (1) vs border (0)
  // This can be useful in determining whether the MB provides
  // a valid predictor
  unsigned char mb_in_image;
265

266
  INTERPOLATIONFILTERTYPE interp_filter;
267

Ronald S. Bultje's avatar
Ronald S. Bultje committed
268
  BLOCK_SIZE_TYPE sb_type;
John Koleszar's avatar
John Koleszar committed
269
270
} MB_MODE_INFO;

John Koleszar's avatar
John Koleszar committed
271
272
typedef struct {
  MB_MODE_INFO mbmi;
273
  union b_mode_info bmi[16];
John Koleszar's avatar
John Koleszar committed
274
275
} MODE_INFO;

276
277
278
279
struct scale_factors {
  int x_num;
  int x_den;
  int x_offset_q4;
280
  int x_step_q4;
281
282
283
  int y_num;
  int y_den;
  int y_offset_q4;
284
  int y_step_q4;
285
286
287
288
289
290
291
292
293
294
295

  int (*scale_value_x)(int val, const struct scale_factors *scale);
  int (*scale_value_y)(int val, const struct scale_factors *scale);
  void (*set_scaled_offsets)(struct scale_factors *scale, int row, int col);
  int_mv32 (*scale_motion_vector_q3_to_q4)(const int_mv *src_mv,
                                           const struct scale_factors *scale);
  int32_t (*scale_motion_vector_component_q4)(int mv_q4,
                                              int num,
                                              int den,
                                              int offset_q4);

296
  convolve_fn_t predict[2][2][2];  // horiz, vert, avg
297
298
};

299
300
enum { MAX_MB_PLANE = 3 };

301
302
303
304
305
struct buf_2d {
  uint8_t *buf;
  int stride;
};

306
struct macroblockd_plane {
307
308
  DECLARE_ALIGNED(16, int16_t,  qcoeff[64 * 64]);
  DECLARE_ALIGNED(16, int16_t,  dqcoeff[64 * 64]);
John Koleszar's avatar
John Koleszar committed
309
  DECLARE_ALIGNED(16, uint16_t, eobs[256]);
310
  DECLARE_ALIGNED(16, int16_t,  diff[64 * 64]);
311
312
313
  PLANE_TYPE plane_type;
  int subsampling_x;
  int subsampling_y;
314
315
  struct buf_2d dst;
  struct buf_2d pre[2];
316
  int16_t *dequant;
317
318
  ENTROPY_CONTEXT *above_context;
  ENTROPY_CONTEXT *left_context;
319
320
321
322
};

#define BLOCK_OFFSET(x, i, n) ((x) + (i) * (n))

Jim Bankoski's avatar
Jim Bankoski committed
323
typedef struct macroblockd {
324
  struct macroblockd_plane plane[MAX_MB_PLANE];
325

326
327
  struct scale_factors scale_factor[2];
  struct scale_factors scale_factor_uv[2];
John Koleszar's avatar
John Koleszar committed
328

John Koleszar's avatar
John Koleszar committed
329
330
331
  MODE_INFO *prev_mode_info_context;
  MODE_INFO *mode_info_context;
  int mode_info_stride;
John Koleszar's avatar
John Koleszar committed
332

John Koleszar's avatar
John Koleszar committed
333
  FRAME_TYPE frame_type;
John Koleszar's avatar
John Koleszar committed
334

John Koleszar's avatar
John Koleszar committed
335
336
  int up_available;
  int left_available;
337
  int right_available;
John Koleszar's avatar
John Koleszar committed
338

339
340
341
342
  // partition contexts
  PARTITION_CONTEXT *above_seg_context;
  PARTITION_CONTEXT *left_seg_context;

343
  /* 0 (disable) 1 (enable) segmentation */
John Koleszar's avatar
John Koleszar committed
344
  unsigned char segmentation_enabled;
John Koleszar's avatar
John Koleszar committed
345

John Koleszar's avatar
John Koleszar committed
346
347
  /* 0 (do not update) 1 (update) the macroblock segmentation map. */
  unsigned char update_mb_segmentation_map;
John Koleszar's avatar
John Koleszar committed
348

349
350
351
352
#if CONFIG_IMPLICIT_SEGMENTATION
  unsigned char allow_implicit_segment_update;
#endif

John Koleszar's avatar
John Koleszar committed
353
354
  /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
  unsigned char update_mb_segmentation_data;
John Koleszar's avatar
John Koleszar committed
355

John Koleszar's avatar
John Koleszar committed
356
357
  /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
  unsigned char mb_segment_abs_delta;
John Koleszar's avatar
John Koleszar committed
358

John Koleszar's avatar
John Koleszar committed
359
360
  /* Per frame flags that define which MB level features (such as quantizer or loop filter level) */
  /* are enabled and when enabled the proabilities used to decode the per MB flags in MB_MODE_INFO */
361

John Koleszar's avatar
John Koleszar committed
362
  // Probability Tree used to code Segment number
363
  vp9_prob mb_segment_tree_probs[MB_SEG_TREE_PROBS];
364

John Koleszar's avatar
John Koleszar committed
365
366
367
  // Segment features
  signed char segment_feature_data[MAX_MB_SEGMENTS][SEG_LVL_MAX];
  unsigned int segment_feature_mask[MAX_MB_SEGMENTS];
John Koleszar's avatar
John Koleszar committed
368

John Koleszar's avatar
John Koleszar committed
369
370
371
372
373
  /* mode_based Loop filter adjustment */
  unsigned char mode_ref_lf_delta_enabled;
  unsigned char mode_ref_lf_delta_update;

  /* Delta values have the range +/- MAX_LOOP_FILTER */
Yaowu Xu's avatar
Yaowu Xu committed
374
375
376
377
378
379
380
381
  /* 0 = Intra, Last, GF, ARF */
  signed char last_ref_lf_deltas[MAX_REF_LF_DELTAS];
  /* 0 = Intra, Last, GF, ARF */
  signed char ref_lf_deltas[MAX_REF_LF_DELTAS];
  /* 0 = I4X4_PRED, ZERO_MV, MV, SPLIT */
  signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS];
  /* 0 = I4X4_PRED, ZERO_MV, MV, SPLIT */
  signed char mode_lf_deltas[MAX_MODE_LF_DELTAS];
John Koleszar's avatar
John Koleszar committed
382
383
384
385
386
387
388
389
390

  /* Distance of MB away from frame edges */
  int mb_to_left_edge;
  int mb_to_right_edge;
  int mb_to_top_edge;
  int mb_to_bottom_edge;

  unsigned int frames_since_golden;
  unsigned int frames_till_alt_ref_frame;
391

Yaowu Xu's avatar
Yaowu Xu committed
392
  int lossless;
393
  /* Inverse transform function pointers. */
Yaowu Xu's avatar
Yaowu Xu committed
394
395
  void (*inv_txm4x4_1)(int16_t *input, int16_t *output, int pitch);
  void (*inv_txm4x4)(int16_t *input, int16_t *output, int pitch);
396
397
398
399
400
  void (*itxm_add)(int16_t *input, uint8_t *dest, int stride, int eob);
  void (*itxm_add_y_block)(int16_t *q, uint8_t *dst, int stride,
    struct macroblockd *xd);
  void (*itxm_add_uv_block)(int16_t *q, uint8_t *dst, int stride,
    uint16_t *eobs);
401

402
  struct subpix_fn_table  subpix;
403

John Koleszar's avatar
John Koleszar committed
404
  int allow_high_precision_mv;
John Koleszar's avatar
John Koleszar committed
405

John Koleszar's avatar
John Koleszar committed
406
  int corrupted;
407

408
409
410
  int sb_index;   // index of 32x32 block inside the 64x64 block
  int mb_index;   // index of 16x16 block inside the 32x32 block
  int b_index;    // index of 8x8 block inside the 16x16 block
411
412
413
#if CONFIG_AB4X4
  int ab_index;   // index of 4x4 block inside the 8x8 block
#endif
Jingning Han's avatar
Jingning Han committed
414
415
  int q_index;

John Koleszar's avatar
John Koleszar committed
416
417
} MACROBLOCKD;

418
419
static int *get_sb_index(MACROBLOCKD *xd, BLOCK_SIZE_TYPE subsize) {
  switch (subsize) {
420
    case BLOCK_SIZE_SB64X64:
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
    case BLOCK_SIZE_SB64X32:
    case BLOCK_SIZE_SB32X64:
    case BLOCK_SIZE_SB32X32:
      return &xd->sb_index;
    case BLOCK_SIZE_SB32X16:
    case BLOCK_SIZE_SB16X32:
    case BLOCK_SIZE_MB16X16:
      return &xd->mb_index;
    case BLOCK_SIZE_SB16X8:
    case BLOCK_SIZE_SB8X16:
    case BLOCK_SIZE_SB8X8:
      return &xd->b_index;
#if CONFIG_AB4X4
    case BLOCK_SIZE_SB8X4:
    case BLOCK_SIZE_SB4X8:
    case BLOCK_SIZE_AB4X4:
      return &xd->ab_index;
#endif
    default:
      assert(0);
      return NULL;
  }
}

445
446
447
static INLINE void update_partition_context(MACROBLOCKD *xd,
                                            BLOCK_SIZE_TYPE sb_type,
                                            BLOCK_SIZE_TYPE sb_size) {
448
449
450
451
  int bsl = b_width_log2(sb_size), bs = (1 << bsl) / 2;
  int bwl = b_width_log2(sb_type);
  int bhl = b_height_log2(sb_type);
  int boffset = b_width_log2(BLOCK_SIZE_SB64X64) - bsl;
452
  int i;
453
454
455

#if !CONFIG_AB4X4
  // skip 8x8 block partition
456
457
  if (bsl == 0)
    return;
458
#endif
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489

  // update the partition context at the end notes. set partition bits
  // of block sizes larger than the current one to be one, and partition
  // bits of smaller block sizes to be zero.
  if ((bwl == bsl) && (bhl == bsl)) {
    for (i = 0; i < bs; i++)
      xd->left_seg_context[i] = ~(0xf << boffset);
    for (i = 0; i < bs; i++)
      xd->above_seg_context[i] = ~(0xf << boffset);
  } else if ((bwl == bsl) && (bhl < bsl)) {
    for (i = 0; i < bs; i++)
      xd->left_seg_context[i] = ~(0xe << boffset);
    for (i = 0; i < bs; i++)
      xd->above_seg_context[i] = ~(0xf << boffset);
  }  else if ((bwl < bsl) && (bhl == bsl)) {
    for (i = 0; i < bs; i++)
      xd->left_seg_context[i] = ~(0xf << boffset);
    for (i = 0; i < bs; i++)
      xd->above_seg_context[i] = ~(0xe << boffset);
  } else if ((bwl < bsl) && (bhl < bsl)) {
    for (i = 0; i < bs; i++)
      xd->left_seg_context[i] = ~(0xe << boffset);
    for (i = 0; i < bs; i++)
      xd->above_seg_context[i] = ~(0xe << boffset);
  } else {
    assert(0);
  }
}

static INLINE int partition_plane_context(MACROBLOCKD *xd,
                                          BLOCK_SIZE_TYPE sb_type) {
490
  int bsl = mi_width_log2(sb_type), bs = 1 << bsl;
491
  int above = 0, left = 0, i;
492
  int boffset = mi_width_log2(BLOCK_SIZE_SB64X64) - bsl;
493

494
  assert(mi_width_log2(sb_type) == mi_height_log2(sb_type));
495
496
497
498
499
500
501
502
503
504
505
  assert(bsl >= 0);
  assert(boffset >= 0);

  for (i = 0; i < bs; i++)
    above |= (xd->above_seg_context[i] & (1 << boffset));
  for (i = 0; i < bs; i++)
    left |= (xd->left_seg_context[i] & (1 << boffset));

  above = (above > 0);
  left  = (left > 0);

506
507
508
#if CONFIG_AB4X4
  return (left * 2 + above) + bsl * PARTITION_PLOFFSET;
#else
509
  return (left * 2 + above) + (bsl - 1) * PARTITION_PLOFFSET;
510
#endif
511
512
}

513
514
515
516
517
518
519
520
521
522
523
524
525
526
static BLOCK_SIZE_TYPE get_subsize(BLOCK_SIZE_TYPE bsize,
                                   PARTITION_TYPE partition) {
  BLOCK_SIZE_TYPE subsize;
  switch (partition) {
    case PARTITION_NONE:
      subsize = bsize;
      break;
    case PARTITION_HORZ:
      if (bsize == BLOCK_SIZE_SB64X64)
        subsize = BLOCK_SIZE_SB64X32;
      else if (bsize == BLOCK_SIZE_SB32X32)
        subsize = BLOCK_SIZE_SB32X16;
      else if (bsize == BLOCK_SIZE_MB16X16)
        subsize = BLOCK_SIZE_SB16X8;
527
528
529
530
#if CONFIG_AB4X4
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_SB8X4;
#endif
531
532
533
534
535
536
537
538
539
540
      else
        assert(0);
      break;
    case PARTITION_VERT:
      if (bsize == BLOCK_SIZE_SB64X64)
        subsize = BLOCK_SIZE_SB32X64;
      else if (bsize == BLOCK_SIZE_SB32X32)
        subsize = BLOCK_SIZE_SB16X32;
      else if (bsize == BLOCK_SIZE_MB16X16)
        subsize = BLOCK_SIZE_SB8X16;
541
542
543
544
#if CONFIG_AB4X4
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_SB4X8;
#endif
545
546
547
548
549
550
551
552
553
554
      else
        assert(0);
      break;
    case PARTITION_SPLIT:
      if (bsize == BLOCK_SIZE_SB64X64)
        subsize = BLOCK_SIZE_SB32X32;
      else if (bsize == BLOCK_SIZE_SB32X32)
        subsize = BLOCK_SIZE_MB16X16;
      else if (bsize == BLOCK_SIZE_MB16X16)
        subsize = BLOCK_SIZE_SB8X8;
555
556
557
558
#if CONFIG_AB4X4
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_AB4X4;
#endif
559
560
561
562
563
564
565
566
567
      else
        assert(0);
      break;
    default:
      assert(0);
  }
  return subsize;
}

Deb Mukherjee's avatar
Deb Mukherjee committed
568
569
570
// convert MB_PREDICTION_MODE to B_PREDICTION_MODE
static B_PREDICTION_MODE pred_mode_conv(MB_PREDICTION_MODE mode) {
  switch (mode) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
571
    case DC_PRED: return B_DC_PRED;
Yaowu Xu's avatar
Yaowu Xu committed
572
573
    case V_PRED: return B_V_PRED;
    case H_PRED: return B_H_PRED;
Dmitry Kovalev's avatar
Dmitry Kovalev committed
574
    case TM_PRED: return B_TM_PRED;
Yaowu Xu's avatar
Yaowu Xu committed
575
576
577
578
579
580
    case D45_PRED: return B_D45_PRED;
    case D135_PRED: return B_D135_PRED;
    case D117_PRED: return B_D117_PRED;
    case D153_PRED: return B_D153_PRED;
    case D27_PRED: return B_D27_PRED;
    case D63_PRED: return B_D63_PRED;
Dmitry Kovalev's avatar
Dmitry Kovalev committed
581
582
583
    default:
       assert(0);
       return B_MODE_COUNT;  // Dummy value
Deb Mukherjee's avatar
Deb Mukherjee committed
584
585
586
  }
}

587
// transform mapping
Deb Mukherjee's avatar
Deb Mukherjee committed
588
static TX_TYPE txfm_map(B_PREDICTION_MODE bmode) {
589
590
  switch (bmode) {
    case B_TM_PRED :
Yaowu Xu's avatar
Yaowu Xu committed
591
    case B_D135_PRED :
Dmitry Kovalev's avatar
Dmitry Kovalev committed
592
      return ADST_ADST;
593

Yaowu Xu's avatar
Yaowu Xu committed
594
595
    case B_V_PRED :
    case B_D117_PRED :
Yaowu Xu's avatar
Yaowu Xu committed
596
    case B_D63_PRED:
Dmitry Kovalev's avatar
Dmitry Kovalev committed
597
      return ADST_DCT;
598

Yaowu Xu's avatar
Yaowu Xu committed
599
600
601
    case B_H_PRED :
    case B_D153_PRED :
    case B_D27_PRED :
Dmitry Kovalev's avatar
Dmitry Kovalev committed
602
      return DCT_ADST;
603

Dmitry Kovalev's avatar
Dmitry Kovalev committed
604
605
    default:
      return DCT_DCT;
606
  }
Deb Mukherjee's avatar
Deb Mukherjee committed
607
608
}

609
610
#define USE_ADST_FOR_I16X16_8X8   1
#define USE_ADST_FOR_I16X16_4X4   1
611
612
#define USE_ADST_FOR_I8X8_4X4     1
#define USE_ADST_PERIPHERY_ONLY   1
613
614
#define USE_ADST_FOR_SB           1
#define USE_ADST_FOR_REMOTE_EDGE  0
615

616
static TX_TYPE get_tx_type_4x4(const MACROBLOCKD *xd, int ib) {
617
618
  // TODO(debargha): explore different patterns for ADST usage when blocksize
  // is smaller than the prediction size
Deb Mukherjee's avatar
Deb Mukherjee committed
619
  TX_TYPE tx_type = DCT_DCT;
620
  const BLOCK_SIZE_TYPE sb_type = xd->mode_info_context->mbmi.sb_type;
621
  const int wb = b_width_log2(sb_type);
622
#if !USE_ADST_FOR_SB
623
  if (sb_type > BLOCK_SIZE_MB16X16)
624
    return tx_type;
625
#endif
Yaowu Xu's avatar
Yaowu Xu committed
626
  if (xd->lossless)
Yaowu Xu's avatar
Yaowu Xu committed
627
    return DCT_DCT;
628
  if (xd->mode_info_context->mbmi.mode == I4X4_PRED) {
629
    tx_type = txfm_map(
Scott LaVarnway's avatar
Scott LaVarnway committed
630
        xd->mode_info_context->bmi[ib].as_mode.first);
631
  } else if (xd->mode_info_context->mbmi.mode <= TM_PRED) {
632
633
#if USE_ADST_FOR_I16X16_4X4
#if USE_ADST_PERIPHERY_ONLY
634
    const int hmax = 1 << wb;
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
    tx_type = txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode));
#if USE_ADST_FOR_REMOTE_EDGE
    if ((ib & (hmax - 1)) != 0 && ib >= hmax)
      tx_type = DCT_DCT;
#else
    if (ib >= 1 && ib < hmax) {
      if (tx_type == ADST_ADST) tx_type = ADST_DCT;
      else if (tx_type == DCT_ADST) tx_type = DCT_DCT;
    } else if (ib >= 1 && (ib & (hmax - 1)) == 0) {
      if (tx_type == ADST_ADST) tx_type = DCT_ADST;
      else if (tx_type == ADST_DCT) tx_type = DCT_DCT;
    } else if (ib != 0) {
      tx_type = DCT_DCT;
    }
#endif
650
651
652
653
654
655
656
657
#else
    // Use ADST
    tx_type = txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode));
#endif
#else
    // Use 2D DCT
    tx_type = DCT_DCT;
#endif
Deb Mukherjee's avatar
Deb Mukherjee committed
658
659
660
661
  }
  return tx_type;
}

662
static TX_TYPE get_tx_type_8x8(const MACROBLOCKD *xd, int ib) {
663
664
  // TODO(debargha): explore different patterns for ADST usage when blocksize
  // is smaller than the prediction size
Deb Mukherjee's avatar
Deb Mukherjee committed
665
  TX_TYPE tx_type = DCT_DCT;
666
  const BLOCK_SIZE_TYPE sb_type = xd->mode_info_context->mbmi.sb_type;
667
  const int wb = b_width_log2(sb_type), hb = b_height_log2(sb_type);
668
#if !USE_ADST_FOR_SB
669
  if (sb_type > BLOCK_SIZE_MB16X16)
670
    return tx_type;
671
#endif
672
  if (ib >= (1 << (wb + hb)))  // no chroma adst
673
    return tx_type;
674
  if (xd->mode_info_context->mbmi.mode <= TM_PRED) {
675
#if USE_ADST_FOR_I16X16_8X8
676
#if USE_ADST_PERIPHERY_ONLY
677
    const int hmax = 1 << wb;
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
    tx_type = txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode));
#if USE_ADST_FOR_REMOTE_EDGE
    if ((ib & (hmax - 1)) != 0 && ib >= hmax)
      tx_type = DCT_DCT;
#else
    if (ib >= 1 && ib < hmax) {
      if (tx_type == ADST_ADST) tx_type = ADST_DCT;
      else if (tx_type == DCT_ADST) tx_type = DCT_DCT;
    } else if (ib >= 1 && (ib & (hmax - 1)) == 0) {
      if (tx_type == ADST_ADST) tx_type = DCT_ADST;
      else if (tx_type == ADST_DCT) tx_type = DCT_DCT;
    } else if (ib != 0) {
      tx_type = DCT_DCT;
    }
#endif
693
694
695
696
697
698
699
700
#else
    // Use ADST
    tx_type = txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode));
#endif
#else
    // Use 2D DCT
    tx_type = DCT_DCT;
#endif
Deb Mukherjee's avatar
Deb Mukherjee committed
701
702
  }
  return tx_type;
703
}
704

705
static TX_TYPE get_tx_type_16x16(const MACROBLOCKD *xd, int ib) {
Deb Mukherjee's avatar
Deb Mukherjee committed
706
  TX_TYPE tx_type = DCT_DCT;
707
  const BLOCK_SIZE_TYPE sb_type = xd->mode_info_context->mbmi.sb_type;
708
  const int wb = b_width_log2(sb_type), hb = b_height_log2(sb_type);
709
#if !USE_ADST_FOR_SB
710
  if (sb_type > BLOCK_SIZE_MB16X16)
711
712
    return tx_type;
#endif
713
  if (ib >= (1 << (wb + hb)))
714
    return tx_type;
715
  if (xd->mode_info_context->mbmi.mode <= TM_PRED) {
Deb Mukherjee's avatar
Deb Mukherjee committed
716
    tx_type = txfm_map(pred_mode_conv(xd->mode_info_context->mbmi.mode));
717
#if USE_ADST_PERIPHERY_ONLY
718
    if (sb_type > BLOCK_SIZE_MB16X16) {
719
      const int hmax = 1 << wb;
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
#if USE_ADST_FOR_REMOTE_EDGE
      if ((ib & (hmax - 1)) != 0 && ib >= hmax)
        tx_type = DCT_DCT;
#else
      if (ib >= 1 && ib < hmax) {
        if (tx_type == ADST_ADST) tx_type = ADST_DCT;
        else if (tx_type == DCT_ADST) tx_type = DCT_DCT;
      } else if (ib >= 1 && (ib & (hmax - 1)) == 0) {
        if (tx_type == ADST_ADST) tx_type = DCT_ADST;
        else if (tx_type == ADST_DCT) tx_type = DCT_DCT;
      } else if (ib != 0) {
        tx_type = DCT_DCT;
      }
#endif
    }
#endif
Deb Mukherjee's avatar
Deb Mukherjee committed
736
737
738
739
  }
  return tx_type;
}

740
741
void vp9_setup_block_dptrs(MACROBLOCKD *xd,
                           int subsampling_x, int subsampling_y);
John Koleszar's avatar
John Koleszar committed
742

743
static TX_SIZE get_uv_tx_size(const MACROBLOCKD *xd) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
744
745
746
747
748
749
  MB_MODE_INFO *mbmi = &xd->mode_info_context->mbmi;
  const TX_SIZE size = mbmi->txfm_size;

  switch (mbmi->sb_type) {
    case BLOCK_SIZE_SB64X64:
      return size;
750
751
    case BLOCK_SIZE_SB64X32:
    case BLOCK_SIZE_SB32X64:
Dmitry Kovalev's avatar
Dmitry Kovalev committed
752
753
754
755
756
    case BLOCK_SIZE_SB32X32:
      if (size == TX_32X32)
        return TX_16X16;
      else
        return size;
757
758
759
760
761
762
763
764
765
    case BLOCK_SIZE_SB32X16:
    case BLOCK_SIZE_SB16X32:
    case BLOCK_SIZE_MB16X16:
      if (size == TX_16X16)
        return TX_8X8;
      else
        return size;
    default:
      return TX_4X4;
766
  }
Dmitry Kovalev's avatar
Dmitry Kovalev committed
767
768

  return size;
769
}
770

771
772
773
774
775
776
777
struct plane_block_idx {
  int plane;
  int block;
};

// TODO(jkoleszar): returning a struct so it can be used in a const context,
// expect to refactor this further later.
John Koleszar's avatar
John Koleszar committed
778
static INLINE struct plane_block_idx plane_block_idx(int y_blocks,
779
                                                     int b_idx) {
John Koleszar's avatar
John Koleszar committed
780
  const int v_offset = y_blocks * 5 / 4;
781
782
  struct plane_block_idx res;

John Koleszar's avatar
John Koleszar committed
783
  if (b_idx < y_blocks) {
784
785
786
787
    res.plane = 0;
    res.block = b_idx;
  } else if (b_idx < v_offset) {
    res.plane = 1;
John Koleszar's avatar
John Koleszar committed
788
    res.block = b_idx - y_blocks;
789
  } else {
John Koleszar's avatar
John Koleszar committed
790
    assert(b_idx < y_blocks * 3 / 2);
791
792
793
794
795
796
    res.plane = 2;
    res.block = b_idx - v_offset;
  }
  return res;
}

John Koleszar's avatar
John Koleszar committed
797
typedef void (*foreach_transformed_block_visitor)(int plane, int block,
798
                                                  BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
799
800
801
                                                  int ss_txfrm_size,
                                                  void *arg);
static INLINE void foreach_transformed_block_in_plane(
802
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize, int plane,
803
    foreach_transformed_block_visitor visit, void *arg) {
804
805
  const int bw = b_width_log2(bsize), bh = b_height_log2(bsize);

John Koleszar's avatar
John Koleszar committed
806
807
  // block and transform sizes, in number of 4x4 blocks log 2 ("*_b")
  // 4x4=0, 8x8=2, 16x16=4, 32x32=6, 64x64=8
John Koleszar's avatar
John Koleszar committed
808
809
810
  // transform size varies per plane, look it up in a common way.
  const TX_SIZE tx_size = plane ? get_uv_tx_size(xd)
                                : xd->mode_info_context->mbmi.txfm_size;
811
  const int block_size_b = bw + bh;
John Koleszar's avatar
John Koleszar committed
812
813
814
815
816
817
818
  const int txfrm_size_b = tx_size * 2;

  // subsampled size of the block
  const int ss_sum = xd->plane[plane].subsampling_x +
                     xd->plane[plane].subsampling_y;
  const int ss_block_size = block_size_b - ss_sum;

John Koleszar's avatar
John Koleszar committed
819
  const int step = 1 << txfrm_size_b;
John Koleszar's avatar
John Koleszar committed
820
821
822
823

  int i;

  assert(txfrm_size_b <= block_size_b);
John Koleszar's avatar
John Koleszar committed
824
  assert(txfrm_size_b <= ss_block_size);
825
  for (i = 0; i < (1 << ss_block_size); i += step) {
John Koleszar's avatar
John Koleszar committed
826
    visit(plane, i, bsize, txfrm_size_b, arg);
John Koleszar's avatar
John Koleszar committed
827
828
829
830
  }
}

static INLINE void foreach_transformed_block(
831
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
832
833
834
835
    foreach_transformed_block_visitor visit, void *arg) {
  int plane;

  for (plane = 0; plane < MAX_MB_PLANE; plane++) {
836
    foreach_transformed_block_in_plane(xd, bsize, plane,
John Koleszar's avatar
John Koleszar committed
837
838
839
                                       visit, arg);
  }
}
840

841
static INLINE void foreach_transformed_block_uv(
842
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize,
843
844
845
846
    foreach_transformed_block_visitor visit, void *arg) {
  int plane;

  for (plane = 1; plane < MAX_MB_PLANE; plane++) {
847
    foreach_transformed_block_in_plane(xd, bsize, plane,
848
849
850
851
                                       visit, arg);
  }
}

852
853
854
855
856
857
858
859
860
861
// TODO(jkoleszar): In principle, pred_w, pred_h are unnecessary, as we could
// calculate the subsampled BLOCK_SIZE_TYPE, but that type isn't defined for
// sizes smaller than 16x16 yet.
typedef void (*foreach_predicted_block_visitor)(int plane, int block,
                                                BLOCK_SIZE_TYPE bsize,
                                                int pred_w, int pred_h,
                                                void *arg);
static INLINE void foreach_predicted_block_in_plane(
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize, int plane,
    foreach_predicted_block_visitor visit, void *arg) {
862
863
  int i, x, y;
  const MB_PREDICTION_MODE mode = xd->mode_info_context->mbmi.mode;
864
865
866
867

  // block sizes in number of 4x4 blocks log 2 ("*_b")
  // 4x4=0, 8x8=2, 16x16=4, 32x32=6, 64x64=8
  // subsampled size of the block
868
869
  const int bw = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
  const int bh = b_height_log2(bsize) - xd->plane[plane].subsampling_y;
870
871

  // size of the predictor to use.
872
873
874
  int pred_w, pred_h;

  if (mode == SPLITMV) {
875
876
    pred_w = 0;
    pred_h = 0;
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
  } else {
    pred_w = bw;
    pred_h = bh;
  }
  assert(pred_w <= bw);
  assert(pred_h <= bh);

  // visit each subblock in raster order
  i = 0;
  for (y = 0; y < 1 << bh; y += 1 << pred_h) {
    for (x = 0; x < 1 << bw; x += 1 << pred_w) {
      visit(plane, i, bsize, pred_w, pred_h, arg);
      i += 1 << pred_w;
    }
    i -= 1 << bw;
    i += 1 << (bw + pred_h);
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
  }
}
static INLINE void foreach_predicted_block(
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize,
    foreach_predicted_block_visitor visit, void *arg) {
  int plane;

  for (plane = 0; plane < MAX_MB_PLANE; plane++) {
    foreach_predicted_block_in_plane(xd, bsize, plane, visit, arg);
  }
}
static INLINE void foreach_predicted_block_uv(
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize,
    foreach_predicted_block_visitor visit, void *arg) {
  int plane;

  for (plane = 1; plane < MAX_MB_PLANE; plane++) {
    foreach_predicted_block_in_plane(xd, bsize, plane, visit, arg);
  }
}
913
static int raster_block_offset(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
914
                               int plane, int block, int stride) {
915
916
917
918
919
920
921
  const int bw = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
  const int y = 4 * (block >> bw), x = 4 * (block & ((1 << bw) - 1));
  return y * stride + x;
}
static int16_t* raster_block_offset_int16(MACROBLOCKD *xd,
                                         BLOCK_SIZE_TYPE bsize,
                                         int plane, int block, int16_t *base) {
John Koleszar's avatar
John Koleszar committed
922
923
924
925
926
927
928
929
930
  const int bw = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
  const int stride = 4 << bw;
  return base + raster_block_offset(xd, bsize, plane, block, stride);
}
static uint8_t* raster_block_offset_uint8(MACROBLOCKD *xd,
                                         BLOCK_SIZE_TYPE bsize,
                                         int plane, int block,
                                         uint8_t *base, int stride) {
  return base + raster_block_offset(xd, bsize, plane, block, stride);
931
}
932

John Koleszar's avatar
John Koleszar committed
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
static int txfrm_block_to_raster_block(MACROBLOCKD *xd,
                                       BLOCK_SIZE_TYPE bsize,
                                       int plane, int block,
                                       int ss_txfrm_size) {
  const int bwl = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
  const int txwl = ss_txfrm_size / 2;
  const int tx_cols_lg2 = bwl - txwl;
  const int tx_cols = 1 << tx_cols_lg2;
  const int raster_mb = block >> ss_txfrm_size;
  const int x = (raster_mb & (tx_cols - 1)) << (txwl);
  const int y = raster_mb >> tx_cols_lg2 << (txwl);
  return x + (y << bwl);
}

static void txfrm_block_to_raster_xy(MACROBLOCKD *xd,
                                     BLOCK_SIZE_TYPE bsize,
                                     int plane, int block,
                                     int ss_txfrm_size,
                                     int *x, int *y) {
  const int bwl = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
  const int txwl = ss_txfrm_size / 2;
  const int tx_cols_lg2 = bwl - txwl;
  const int tx_cols = 1 << tx_cols_lg2;
  const int raster_mb = block >> ss_txfrm_size;
  *x = (raster_mb & (tx_cols - 1)) << (txwl);
  *y = raster_mb >> tx_cols_lg2 << (txwl);
}

961
#endif  // VP9_COMMON_VP9_BLOCKD_H_