vp9_blockd.h 28.3 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
#define BLOCK_SIZE_GROUPS   4
25 26
#define MAX_MB_SEGMENTS     8
#define MB_SEG_TREE_PROBS   (MAX_MB_SEGMENTS-1)
27

Ronald S. Bultje's avatar
Ronald S. Bultje committed
28
#define PREDICTION_PROBS 3
29

30 31
#define MBSKIP_CONTEXTS 3

John Koleszar's avatar
John Koleszar committed
32
#define MAX_REF_LF_DELTAS       4
33
#define MAX_MODE_LF_DELTAS      2
John Koleszar's avatar
John Koleszar committed
34

35
/* Segment Feature Masks */
John Koleszar's avatar
John Koleszar committed
36 37
#define SEGMENT_DELTADATA   0
#define SEGMENT_ABSDATA     1
Paul Wilkins's avatar
Paul Wilkins committed
38
#define MAX_MV_REF_CANDIDATES 2
John Koleszar's avatar
John Koleszar committed
39

Ronald S. Bultje's avatar
Ronald S. Bultje committed
40 41 42 43
#define INTRA_INTER_CONTEXTS 4
#define COMP_INTER_CONTEXTS 5
#define REF_CONTEXTS 5

Dmitry Kovalev's avatar
Dmitry Kovalev committed
44
typedef enum {
45
  PLANE_TYPE_Y_WITH_DC,
46
  PLANE_TYPE_UV,
47
} PLANE_TYPE;
Scott LaVarnway's avatar
Scott LaVarnway committed
48

49
typedef char ENTROPY_CONTEXT;
John Koleszar's avatar
John Koleszar committed
50

51 52
typedef char PARTITION_CONTEXT;

53 54 55 56
static INLINE int combine_entropy_contexts(ENTROPY_CONTEXT a,
                                           ENTROPY_CONTEXT b) {
  return (a != 0) + (b != 0);
}
John Koleszar's avatar
John Koleszar committed
57

John Koleszar's avatar
John Koleszar committed
58 59
typedef enum {
  KEY_FRAME = 0,
60 61
  INTER_FRAME = 1,
  NUM_FRAME_TYPES,
John Koleszar's avatar
John Koleszar committed
62 63
} FRAME_TYPE;

Dmitry Kovalev's avatar
Dmitry Kovalev committed
64
typedef enum {
Adrian Grange's avatar
Adrian Grange committed
65 66 67 68
  EIGHTTAP_SMOOTH,
  EIGHTTAP,
  EIGHTTAP_SHARP,
  BILINEAR,
69 70 71
  SWITCHABLE  /* should be the last one */
} INTERPOLATIONFILTERTYPE;

Dmitry Kovalev's avatar
Dmitry Kovalev committed
72
typedef enum {
73 74 75 76 77 78 79 80 81 82
  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
John Koleszar's avatar
John Koleszar committed
83 84 85 86 87
  NEARESTMV,
  NEARMV,
  ZEROMV,
  NEWMV,
  MB_MODE_COUNT
John Koleszar's avatar
John Koleszar committed
88 89
} MB_PREDICTION_MODE;

90
static INLINE int is_inter_mode(MB_PREDICTION_MODE mode) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
91
  return mode >= NEARESTMV && mode <= NEWMV;
92 93
}

Paul Wilkins's avatar
Paul Wilkins committed
94
// Segment level features.
John Koleszar's avatar
John Koleszar committed
95 96 97 98
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
99
  SEG_LVL_SKIP = 3,                // Optional Segment (0,0) + skip mode
Paul Wilkins's avatar
Paul Wilkins committed
100
  SEG_LVL_MAX = 4                  // Number of MB level features supported
Paul Wilkins's avatar
Paul Wilkins committed
101
} SEG_LVL_FEATURES;
John Koleszar's avatar
John Koleszar committed
102

Paul Wilkins's avatar
Paul Wilkins committed
103
// Segment level features.
John Koleszar's avatar
John Koleszar committed
104
typedef enum {
Yaowu Xu's avatar
Yaowu Xu committed
105 106 107
  TX_4X4 = 0,                      // 4x4 dct transform
  TX_8X8 = 1,                      // 8x8 dct transform
  TX_16X16 = 2,                    // 16x16 dct transform
Ronald S. Bultje's avatar
Ronald S. Bultje committed
108
  TX_32X32 = 3,                    // 32x32 dct transform
Yaowu Xu's avatar
Yaowu Xu committed
109
  TX_SIZE_MAX_SB,                  // Number of transforms available to SBs
Paul Wilkins's avatar
Paul Wilkins committed
110 111
} TX_SIZE;

Jingning Han's avatar
Jingning Han committed
112 113
typedef enum {
  DCT_DCT   = 0,                      // DCT  in both horizontal and vertical
114 115
  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
116 117 118
  ADST_ADST = 3                       // ADST in both directions
} TX_TYPE;

119
#define VP9_INTRA_MODES (TM_PRED + 1)
John Koleszar's avatar
John Koleszar committed
120

121
#define VP9_INTER_MODES (1 + NEWMV - NEARESTMV)
John Koleszar's avatar
John Koleszar committed
122

Yaowu Xu's avatar
Yaowu Xu committed
123
#define WHT_UPSCALE_FACTOR 2
124

125 126
#define TX_SIZE_PROBS  6  // (TX_SIZE_MAX_SB * (TX_SIZE_MAX_SB - 1) / 2)

127 128 129 130
#define get_tx_probs(c, b) ((b) < BLOCK_SIZE_MB16X16 ? \
                            (c)->fc.tx_probs_8x8p :    \
                            (b) < BLOCK_SIZE_SB32X32 ? \
                            (c)->fc.tx_probs_16x16p : (c)->fc.tx_probs_32x32p)
131

John Koleszar's avatar
John Koleszar committed
132 133 134 135
/* 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
136 137
union b_mode_info {
  struct {
138
    MB_PREDICTION_MODE first;
John Koleszar's avatar
John Koleszar committed
139
  } as_mode;
140
  int_mv as_mv[2];  // first, second inter predictor motion vectors
141
};
John Koleszar's avatar
John Koleszar committed
142

John Koleszar's avatar
John Koleszar committed
143
typedef enum {
144
  NONE = -1,
John Koleszar's avatar
John Koleszar committed
145 146 147 148 149
  INTRA_FRAME = 0,
  LAST_FRAME = 1,
  GOLDEN_FRAME = 2,
  ALTREF_FRAME = 3,
  MAX_REF_FRAMES = 4
John Koleszar's avatar
John Koleszar committed
150 151
} MV_REFERENCE_FRAME;

152
static INLINE int b_width_log2(BLOCK_SIZE_TYPE sb_type) {
153
  switch (sb_type) {
154
    case BLOCK_SIZE_SB4X8:
155
    case BLOCK_SIZE_AB4X4: return 0;
156
    case BLOCK_SIZE_SB8X4:
157 158
    case BLOCK_SIZE_SB8X8:
    case BLOCK_SIZE_SB8X16: return 1;
159
    case BLOCK_SIZE_SB16X8:
160
    case BLOCK_SIZE_MB16X16:
161
    case BLOCK_SIZE_SB16X32: return 2;
162
    case BLOCK_SIZE_SB32X16:
163 164
    case BLOCK_SIZE_SB32X32:
    case BLOCK_SIZE_SB32X64: return 3;
165
    case BLOCK_SIZE_SB64X32:
166
    case BLOCK_SIZE_SB64X64: return 4;
167
    default: assert(0);
168
      return -1;
169 170 171
  }
}

172
static INLINE int b_height_log2(BLOCK_SIZE_TYPE sb_type) {
173
  switch (sb_type) {
174
    case BLOCK_SIZE_SB8X4:
175
    case BLOCK_SIZE_AB4X4: return 0;
176
    case BLOCK_SIZE_SB4X8:
177 178
    case BLOCK_SIZE_SB8X8:
    case BLOCK_SIZE_SB16X8: return 1;
179
    case BLOCK_SIZE_SB8X16:
180
    case BLOCK_SIZE_MB16X16:
181
    case BLOCK_SIZE_SB32X16: return 2;
182
    case BLOCK_SIZE_SB16X32:
183 184
    case BLOCK_SIZE_SB32X32:
    case BLOCK_SIZE_SB64X32: return 3;
185
    case BLOCK_SIZE_SB32X64:
186
    case BLOCK_SIZE_SB64X64: return 4;
187
    default: assert(0);
188
      return -1;
189 190
  }
}
Ronald S. Bultje's avatar
Ronald S. Bultje committed
191

192 193
static INLINE int mi_width_log2(BLOCK_SIZE_TYPE sb_type) {
  int a = b_width_log2(sb_type) - 1;
194 195 196
  // align 4x4 block to mode_info
  if (a < 0)
    a = 0;
197 198
  assert(a >= 0);
  return a;
199 200
}

201 202
static INLINE int mi_height_log2(BLOCK_SIZE_TYPE sb_type) {
  int a = b_height_log2(sb_type) - 1;
203 204
  if (a < 0)
    a = 0;
205 206
  assert(a >= 0);
  return a;
207 208
}

John Koleszar's avatar
John Koleszar committed
209 210
typedef struct {
  MB_PREDICTION_MODE mode, uv_mode;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
211
  MV_REFERENCE_FRAME ref_frame[2];
John Koleszar's avatar
John Koleszar committed
212
  TX_SIZE txfm_size;
213
  int_mv mv[2]; // for each reference frame used
Paul Wilkins's avatar
Paul Wilkins committed
214
  int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
Deb Mukherjee's avatar
Deb Mukherjee committed
215
  int_mv best_mv, best_second_mv;
Paul Wilkins's avatar
Paul Wilkins committed
216

Paul Wilkins's avatar
Paul Wilkins committed
217 218
  int mb_mode_context[MAX_REF_FRAMES];

John Koleszar's avatar
John Koleszar committed
219 220 221
  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;
222
  unsigned char segment_id;           // Segment id for current frame
John Koleszar's avatar
John Koleszar committed
223 224 225 226 227 228 229 230

  // Flags used for prediction status of various bistream signals
  unsigned char seg_id_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;
231

232
  INTERPOLATIONFILTERTYPE interp_filter;
233

Ronald S. Bultje's avatar
Ronald S. Bultje committed
234
  BLOCK_SIZE_TYPE sb_type;
John Koleszar's avatar
John Koleszar committed
235 236
} MB_MODE_INFO;

John Koleszar's avatar
John Koleszar committed
237 238
typedef struct {
  MB_MODE_INFO mbmi;
239
  union b_mode_info bmi[4];
John Koleszar's avatar
John Koleszar committed
240 241
} MODE_INFO;

242 243 244 245
struct scale_factors {
  int x_num;
  int x_den;
  int x_offset_q4;
246
  int x_step_q4;
247 248 249
  int y_num;
  int y_den;
  int y_offset_q4;
250
  int y_step_q4;
251 252 253 254

  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);
255 256 257
  int_mv32 (*scale_mv_q3_to_q4)(const int_mv *src_mv,
                                const struct scale_factors *scale);
  int32_t (*scale_mv_component_q4)(int mv_q4, int num, int den, int offset_q4);
258

259
  convolve_fn_t predict[2][2][2];  // horiz, vert, avg
260 261
};

262 263 264
#if CONFIG_ALPHA
enum { MAX_MB_PLANE = 4 };
#else
265
enum { MAX_MB_PLANE = 3 };
266
#endif
267

268 269 270 271 272
struct buf_2d {
  uint8_t *buf;
  int stride;
};

273
struct macroblockd_plane {
274 275
  DECLARE_ALIGNED(16, int16_t,  qcoeff[64 * 64]);
  DECLARE_ALIGNED(16, int16_t,  dqcoeff[64 * 64]);
John Koleszar's avatar
John Koleszar committed
276
  DECLARE_ALIGNED(16, uint16_t, eobs[256]);
277 278 279
  PLANE_TYPE plane_type;
  int subsampling_x;
  int subsampling_y;
280 281
  struct buf_2d dst;
  struct buf_2d pre[2];
282
  int16_t *dequant;
283 284
  ENTROPY_CONTEXT *above_context;
  ENTROPY_CONTEXT *left_context;
285 286 287 288
};

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

Jim Bankoski's avatar
Jim Bankoski committed
289
typedef struct macroblockd {
290
  struct macroblockd_plane plane[MAX_MB_PLANE];
291

292 293
  struct scale_factors scale_factor[2];
  struct scale_factors scale_factor_uv[2];
John Koleszar's avatar
John Koleszar committed
294

John Koleszar's avatar
John Koleszar committed
295 296 297
  MODE_INFO *prev_mode_info_context;
  MODE_INFO *mode_info_context;
  int mode_info_stride;
John Koleszar's avatar
John Koleszar committed
298

John Koleszar's avatar
John Koleszar committed
299
  FRAME_TYPE frame_type;
John Koleszar's avatar
John Koleszar committed
300

John Koleszar's avatar
John Koleszar committed
301 302
  int up_available;
  int left_available;
303
  int right_available;
John Koleszar's avatar
John Koleszar committed
304

305 306 307 308
  // partition contexts
  PARTITION_CONTEXT *above_seg_context;
  PARTITION_CONTEXT *left_seg_context;

309
  /* 0 (disable) 1 (enable) segmentation */
John Koleszar's avatar
John Koleszar committed
310
  unsigned char segmentation_enabled;
John Koleszar's avatar
John Koleszar committed
311

John Koleszar's avatar
John Koleszar committed
312 313
  /* 0 (do not update) 1 (update) the macroblock segmentation map. */
  unsigned char update_mb_segmentation_map;
John Koleszar's avatar
John Koleszar committed
314

John Koleszar's avatar
John Koleszar committed
315 316
  /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
  unsigned char update_mb_segmentation_data;
John Koleszar's avatar
John Koleszar committed
317

John Koleszar's avatar
John Koleszar committed
318 319
  /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
  unsigned char mb_segment_abs_delta;
John Koleszar's avatar
John Koleszar committed
320

John Koleszar's avatar
John Koleszar committed
321 322
  /* 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 */
323

John Koleszar's avatar
John Koleszar committed
324
  // Probability Tree used to code Segment number
325
  vp9_prob mb_segment_tree_probs[MB_SEG_TREE_PROBS];
326

John Koleszar's avatar
John Koleszar committed
327
  // Segment features
328
  int16_t segment_feature_data[MAX_MB_SEGMENTS][SEG_LVL_MAX];
John Koleszar's avatar
John Koleszar committed
329
  unsigned int segment_feature_mask[MAX_MB_SEGMENTS];
John Koleszar's avatar
John Koleszar committed
330

John Koleszar's avatar
John Koleszar committed
331 332 333 334 335
  /* 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
336 337 338 339
  /* 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];
340
  /* 0 = ZERO_MV, MV */
Yaowu Xu's avatar
Yaowu Xu committed
341
  signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS];
342
  /* 0 = ZERO_MV, MV */
Yaowu Xu's avatar
Yaowu Xu committed
343
  signed char mode_lf_deltas[MAX_MODE_LF_DELTAS];
John Koleszar's avatar
John Koleszar committed
344 345 346 347 348 349 350 351 352

  /* 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;
353

Yaowu Xu's avatar
Yaowu Xu committed
354
  int lossless;
355
  /* Inverse transform function pointers. */
Scott LaVarnway's avatar
Scott LaVarnway committed
356 357
  void (*inv_txm4x4_1_add)(int16_t *input, uint8_t *dest, int stride);
  void (*inv_txm4x4_add)(int16_t *input, uint8_t *dest, int stride);
358 359 360 361 362
  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);
363

364
  struct subpix_fn_table  subpix;
365

John Koleszar's avatar
John Koleszar committed
366
  int allow_high_precision_mv;
John Koleszar's avatar
John Koleszar committed
367

John Koleszar's avatar
John Koleszar committed
368
  int corrupted;
369

370 371 372
  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
373
  int ab_index;   // index of 4x4 block inside the 8x8 block
Jingning Han's avatar
Jingning Han committed
374 375
  int q_index;

John Koleszar's avatar
John Koleszar committed
376 377
} MACROBLOCKD;

378 379
static int *get_sb_index(MACROBLOCKD *xd, BLOCK_SIZE_TYPE subsize) {
  switch (subsize) {
380
    case BLOCK_SIZE_SB64X64:
381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402
    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;
    case BLOCK_SIZE_SB8X4:
    case BLOCK_SIZE_SB4X8:
    case BLOCK_SIZE_AB4X4:
      return &xd->ab_index;
    default:
      assert(0);
      return NULL;
  }
}

403 404 405
static INLINE void update_partition_context(MACROBLOCKD *xd,
                                            BLOCK_SIZE_TYPE sb_type,
                                            BLOCK_SIZE_TYPE sb_size) {
406 407 408 409
  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;
410
  int i;
411

412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441
  // 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) {
442
  int bsl = mi_width_log2(sb_type), bs = 1 << bsl;
443
  int above = 0, left = 0, i;
444
  int boffset = mi_width_log2(BLOCK_SIZE_SB64X64) - bsl;
445

446
  assert(mi_width_log2(sb_type) == mi_height_log2(sb_type));
447 448 449 450 451 452 453 454 455 456 457
  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);

458
  return (left * 2 + above) + bsl * PARTITION_PLOFFSET;
459 460
}

461 462 463 464 465 466 467 468 469 470 471 472 473 474
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;
475 476
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_SB8X4;
477 478 479 480 481 482 483 484 485 486
      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;
487 488
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_SB4X8;
489 490 491 492 493 494 495 496 497 498
      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;
499 500
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_AB4X4;
501 502 503 504 505 506 507 508 509
      else
        assert(0);
      break;
    default:
      assert(0);
  }
  return subsize;
}

510
// transform mapping
511
static TX_TYPE txfm_map(MB_PREDICTION_MODE bmode) {
512
  switch (bmode) {
513 514
    case TM_PRED :
    case D135_PRED :
Dmitry Kovalev's avatar
Dmitry Kovalev committed
515
      return ADST_ADST;
516

517 518 519
    case V_PRED :
    case D117_PRED :
    case D63_PRED:
Dmitry Kovalev's avatar
Dmitry Kovalev committed
520
      return ADST_DCT;
521

522 523 524
    case H_PRED :
    case D153_PRED :
    case D27_PRED :
Dmitry Kovalev's avatar
Dmitry Kovalev committed
525
      return DCT_ADST;
526

Dmitry Kovalev's avatar
Dmitry Kovalev committed
527 528
    default:
      return DCT_DCT;
529
  }
Deb Mukherjee's avatar
Deb Mukherjee committed
530 531
}

532
static TX_TYPE get_tx_type_4x4(const MACROBLOCKD *xd, int ib) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
533 534 535
  TX_TYPE tx_type;
  MODE_INFO *mi = xd->mode_info_context;
  MB_MODE_INFO *const mbmi = &mi->mbmi;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
536
  if (xd->lossless || mbmi->ref_frame[0] != INTRA_FRAME)
Yaowu Xu's avatar
Yaowu Xu committed
537
    return DCT_DCT;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
538 539 540 541 542
  if (mbmi->sb_type < BLOCK_SIZE_SB8X8) {
    tx_type = txfm_map(mi->bmi[ib].as_mode.first);
  } else {
    assert(mbmi->mode <= TM_PRED);
    tx_type = txfm_map(mbmi->mode);
Deb Mukherjee's avatar
Deb Mukherjee committed
543 544 545 546
  }
  return tx_type;
}

547
static TX_TYPE get_tx_type_8x8(const MACROBLOCKD *xd, int ib) {
Deb Mukherjee's avatar
Deb Mukherjee committed
548
  TX_TYPE tx_type = DCT_DCT;
549
  if (xd->mode_info_context->mbmi.mode <= TM_PRED) {
Yaowu Xu's avatar
Yaowu Xu committed
550
    tx_type = txfm_map(xd->mode_info_context->mbmi.mode);
Deb Mukherjee's avatar
Deb Mukherjee committed
551 552
  }
  return tx_type;
553
}
554

555
static TX_TYPE get_tx_type_16x16(const MACROBLOCKD *xd, int ib) {
Deb Mukherjee's avatar
Deb Mukherjee committed
556
  TX_TYPE tx_type = DCT_DCT;
557
  if (xd->mode_info_context->mbmi.mode <= TM_PRED) {
Yaowu Xu's avatar
Yaowu Xu committed
558
    tx_type = txfm_map(xd->mode_info_context->mbmi.mode);
Deb Mukherjee's avatar
Deb Mukherjee committed
559 560 561 562
  }
  return tx_type;
}

563 564
void vp9_setup_block_dptrs(MACROBLOCKD *xd,
                           int subsampling_x, int subsampling_y);
John Koleszar's avatar
John Koleszar committed
565

566
static TX_SIZE get_uv_tx_size(const MACROBLOCKD *xd) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
567 568 569 570 571 572
  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;
573 574
    case BLOCK_SIZE_SB64X32:
    case BLOCK_SIZE_SB32X64:
Dmitry Kovalev's avatar
Dmitry Kovalev committed
575 576 577 578 579
    case BLOCK_SIZE_SB32X32:
      if (size == TX_32X32)
        return TX_16X16;
      else
        return size;
580 581 582 583 584 585 586 587 588
    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;
589
  }
Dmitry Kovalev's avatar
Dmitry Kovalev committed
590 591

  return size;
592
}
593

594 595 596 597 598 599 600
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
601
static INLINE struct plane_block_idx plane_block_idx(int y_blocks,
602
                                                     int b_idx) {
John Koleszar's avatar
John Koleszar committed
603
  const int v_offset = y_blocks * 5 / 4;
604 605
  struct plane_block_idx res;

John Koleszar's avatar
John Koleszar committed
606
  if (b_idx < y_blocks) {
607 608 609 610
    res.plane = 0;
    res.block = b_idx;
  } else if (b_idx < v_offset) {
    res.plane = 1;
John Koleszar's avatar
John Koleszar committed
611
    res.block = b_idx - y_blocks;
612
  } else {
John Koleszar's avatar
John Koleszar committed
613
    assert(b_idx < y_blocks * 3 / 2);
614 615 616 617 618 619
    res.plane = 2;
    res.block = b_idx - v_offset;
  }
  return res;
}

620 621 622 623 624 625 626 627 628 629
static INLINE int plane_block_width(BLOCK_SIZE_TYPE bsize,
                                    const struct macroblockd_plane* plane) {
  return 4 << (b_width_log2(bsize) - plane->subsampling_x);
}

static INLINE int plane_block_height(BLOCK_SIZE_TYPE bsize,
                                     const struct macroblockd_plane* plane) {
  return 4 << (b_height_log2(bsize) - plane->subsampling_y);
}

John Koleszar's avatar
John Koleszar committed
630
typedef void (*foreach_transformed_block_visitor)(int plane, int block,
631
                                                  BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
632 633
                                                  int ss_txfrm_size,
                                                  void *arg);
Jingning Han's avatar
Jingning Han committed
634

John Koleszar's avatar
John Koleszar committed
635
static INLINE void foreach_transformed_block_in_plane(
636
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize, int plane,
637
    foreach_transformed_block_visitor visit, void *arg) {
638 639
  const int bw = b_width_log2(bsize), bh = b_height_log2(bsize);

John Koleszar's avatar
John Koleszar committed
640 641
  // 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
642
  // transform size varies per plane, look it up in a common way.
643 644
  const TX_SIZE tx_size =
      plane ? get_uv_tx_size(xd) : xd->mode_info_context->mbmi.txfm_size;
645
  const int block_size_b = bw + bh;
John Koleszar's avatar
John Koleszar committed
646 647 648
  const int txfrm_size_b = tx_size * 2;

  // subsampled size of the block
649 650
  const int ss_sum = xd->plane[plane].subsampling_x
      + xd->plane[plane].subsampling_y;
John Koleszar's avatar
John Koleszar committed
651 652
  const int ss_block_size = block_size_b - ss_sum;

John Koleszar's avatar
John Koleszar committed
653
  const int step = 1 << txfrm_size_b;
John Koleszar's avatar
John Koleszar committed
654 655 656 657

  int i;

  assert(txfrm_size_b <= block_size_b);
John Koleszar's avatar
John Koleszar committed
658
  assert(txfrm_size_b <= ss_block_size);
659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694

  // If mb_to_right_edge is < 0 we are in a situation in which
  // the current block size extends into the UMV and we won't
  // visit the sub blocks that are wholly within the UMV.
  if (xd->mb_to_right_edge < 0 || xd->mb_to_bottom_edge < 0) {
    int r, c;
    const int sw = bw - xd->plane[plane].subsampling_x;
    const int sh = bh - xd->plane[plane].subsampling_y;
    int max_blocks_wide = 1 << sw;
    int max_blocks_high = 1 << sh;

    // xd->mb_to_right_edge is in units of pixels * 8.  This converts
    // it to 4x4 block sizes.
    if (xd->mb_to_right_edge < 0)
      max_blocks_wide +=
          + (xd->mb_to_right_edge >> (5 + xd->plane[plane].subsampling_x));

    if (xd->mb_to_bottom_edge < 0)
      max_blocks_high +=
          + (xd->mb_to_bottom_edge >> (5 + xd->plane[plane].subsampling_y));

    i = 0;
    // Unlike the normal case - in here we have to keep track of the
    // row and column of the blocks we use so that we know if we are in
    // the unrestricted motion border..
    for (r = 0; r < (1 << sh); r += (1 << tx_size)) {
      for (c = 0; c < (1 << sw); c += (1 << tx_size)) {
        if (r < max_blocks_high && c < max_blocks_wide)
          visit(plane, i, bsize, txfrm_size_b, arg);
        i += step;
      }
    }
  } else {
    for (i = 0; i < (1 << ss_block_size); i += step) {
      visit(plane, i, bsize, txfrm_size_b, arg);
    }
John Koleszar's avatar
John Koleszar committed
695 696 697 698
  }
}

static INLINE void foreach_transformed_block(
699
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
700 701 702 703
    foreach_transformed_block_visitor visit, void *arg) {
  int plane;

  for (plane = 0; plane < MAX_MB_PLANE; plane++) {
704
    foreach_transformed_block_in_plane(xd, bsize, plane,
John Koleszar's avatar
John Koleszar committed
705 706 707
                                       visit, arg);
  }
}
708

709
static INLINE void foreach_transformed_block_uv(
710
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize,
711 712 713 714
    foreach_transformed_block_visitor visit, void *arg) {
  int plane;

  for (plane = 1; plane < MAX_MB_PLANE; plane++) {
715
    foreach_transformed_block_in_plane(xd, bsize, plane,
716 717 718 719
                                       visit, arg);
  }
}

720 721 722 723 724 725 726 727 728 729
// 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) {
730
  int i, x, y;
731 732 733 734

  // 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
735 736
  const int bwl = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
  const int bhl = b_height_log2(bsize) - xd->plane[plane].subsampling_y;
737 738

  // size of the predictor to use.
739 740
  int pred_w, pred_h;

Ronald S. Bultje's avatar
Ronald S. Bultje committed
741 742
  if (xd->mode_info_context->mbmi.sb_type < BLOCK_SIZE_SB8X8) {
    assert(bsize == BLOCK_SIZE_SB8X8);
743 744
    pred_w = 0;
    pred_h = 0;
745
  } else {
746 747
    pred_w = bwl;
    pred_h = bhl;
748
  }
749 750
  assert(pred_w <= bwl);
  assert(pred_h <= bhl);
751 752 753

  // visit each subblock in raster order
  i = 0;
754 755
  for (y = 0; y < 1 << bhl; y += 1 << pred_h) {
    for (x = 0; x < 1 << bwl; x += 1 << pred_w) {
756 757 758
      visit(plane, i, bsize, pred_w, pred_h, arg);
      i += 1 << pred_w;
    }
759
    i += (1 << (bwl + pred_h)) - (1 << bwl);
760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779
  }
}
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);
  }
}
780
static int raster_block_offset(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
781
                               int plane, int block, int stride) {
782 783 784 785 786 787 788
  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) {
789
  const int stride = plane_block_width(bsize, &xd->plane[plane]);
John Koleszar's avatar
John Koleszar committed
790 791 792 793 794 795 796
  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);
797
}
798

John Koleszar's avatar
John Koleszar committed
799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825
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);
}
826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910

static void extend_for_intra(MACROBLOCKD* const xd, int plane, int block,
                             BLOCK_SIZE_TYPE bsize, int ss_txfrm_size) {
  const int bw = plane_block_width(bsize, &xd->plane[plane]);
  const int bh = plane_block_height(bsize, &xd->plane[plane]);
  int x, y;
  txfrm_block_to_raster_xy(xd, bsize, plane, block, ss_txfrm_size, &x, &y);
  x = x * 4 - 1;
  y = y * 4 - 1;
  // Copy a pixel into the umv if we are in a situation where the block size
  // extends into the UMV.
  // TODO(JBB): Should be able to do the full extend in place so we don't have
  // to do this multiple times.
  if (xd->mb_to_right_edge < 0) {
    int umv_border_start = bw
        + (xd->mb_to_right_edge >> (3 + xd->plane[plane].subsampling_x));

    if (x + bw > umv_border_start)
      vpx_memset(
          xd->plane[plane].dst.buf + y * xd->plane[plane].dst.stride
              + umv_border_start,
          *(xd->plane[plane].dst.buf + y * xd->plane[plane].dst.stride
              + umv_border_start - 1),
          bw);
  }
  if (xd->mb_to_bottom_edge < 0) {
    int umv_border_start = bh
        + (xd->mb_to_bottom_edge >> (3 + xd->plane[plane].subsampling_y));
    int i;
    uint8_t c = *(xd->plane[plane].dst.buf
        + (umv_border_start - 1) * xd->plane[plane].dst.stride + x);

    uint8_t *d = xd->plane[plane].dst.buf
        + umv_border_start * xd->plane[plane].dst.stride + x;

    if (y + bh > umv_border_start)
      for (i = 0; i < bh; i++, d += xd->plane[plane].dst.stride)
        *d = c;
  }
}
static void set_contexts_on_border(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize,
                                   int plane, int ss_tx_size, int eob, int aoff,
                                   int loff, ENTROPY_CONTEXT *A,
                                   ENTROPY_CONTEXT *L) {
  const int bw = b_width_log2(bsize), bh = b_height_log2(bsize);
  const int sw = bw - xd->plane[plane].subsampling_x;
  const int sh = bh - xd->plane[plane].subsampling_y;
  int mi_blocks_wide = 1 << sw;
  int mi_blocks_high = 1 << sh;
  int tx_size_in_blocks = (1 << ss_tx_size);
  int above_contexts = tx_size_in_blocks;
  int left_contexts = tx_size_in_blocks;
  int pt;

  // xd->mb_to_right_edge is in units of pixels * 8.  This converts
  // it to 4x4 block sizes.
  if (xd->mb_to_right_edge < 0) {
    mi_blocks_wide += (xd->mb_to_right_edge
        >> (5 + xd->plane[plane].subsampling_x));
  }

  // this code attempts to avoid copying into contexts that are outside
  // our border.  Any blocks that do are set to 0...
  if (above_contexts + aoff > mi_blocks_wide)
    above_contexts = mi_blocks_wide - aoff;

  if (xd->mb_to_bottom_edge < 0) {
    mi_blocks_high += (xd->mb_to_bottom_edge
        >> (5 + xd->plane[plane].subsampling_y));
  }
  if (left_contexts + loff > mi_blocks_high) {
    left_contexts = mi_blocks_high - loff;
  }

  for (pt = 0; pt < above_contexts; pt++)
    A[pt] = eob > 0;
  for (pt = above_contexts; pt < (1 << ss_tx_size); pt++)
    A[pt] = 0;
  for (pt = 0; pt < left_contexts; pt++)
    L[pt] = eob > 0;
  for (pt = left_contexts; pt < (1 << ss_tx_size); pt++)
    L[pt] = 0;
}


911
#endif  // VP9_COMMON_VP9_BLOCKD_H_