vp9_blockd.h 26.1 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"
23
#include "vp9/common/vp9_common_data.h"
John Koleszar's avatar
John Koleszar committed
24

25
#define BLOCK_SIZE_GROUPS   4
26 27
#define MAX_MB_SEGMENTS     8
#define MB_SEG_TREE_PROBS   (MAX_MB_SEGMENTS-1)
28

Ronald S. Bultje's avatar
Ronald S. Bultje committed
29
#define PREDICTION_PROBS 3
30

31 32
#define MBSKIP_CONTEXTS 3

John Koleszar's avatar
John Koleszar committed
33
#define MAX_REF_LF_DELTAS       4
34
#define MAX_MODE_LF_DELTAS      2
John Koleszar's avatar
John Koleszar committed
35

36
/* Segment Feature Masks */
John Koleszar's avatar
John Koleszar committed
37 38
#define SEGMENT_DELTADATA   0
#define SEGMENT_ABSDATA     1
Paul Wilkins's avatar
Paul Wilkins committed
39
#define MAX_MV_REF_CANDIDATES 2
John Koleszar's avatar
John Koleszar committed
40

Ronald S. Bultje's avatar
Ronald S. Bultje committed
41 42 43 44
#define INTRA_INTER_CONTEXTS 4
#define COMP_INTER_CONTEXTS 5
#define REF_CONTEXTS 5

Dmitry Kovalev's avatar
Dmitry Kovalev committed
45
typedef enum {
46
  PLANE_TYPE_Y_WITH_DC,
47
  PLANE_TYPE_UV,
48
} PLANE_TYPE;
Scott LaVarnway's avatar
Scott LaVarnway committed
49

50
typedef char ENTROPY_CONTEXT;
John Koleszar's avatar
John Koleszar committed
51

52 53
typedef char PARTITION_CONTEXT;

54 55 56 57
static INLINE int combine_entropy_contexts(ENTROPY_CONTEXT a,
                                           ENTROPY_CONTEXT b) {
  return (a != 0) + (b != 0);
}
John Koleszar's avatar
John Koleszar committed
58

John Koleszar's avatar
John Koleszar committed
59 60
typedef enum {
  KEY_FRAME = 0,
61 62
  INTER_FRAME = 1,
  NUM_FRAME_TYPES,
John Koleszar's avatar
John Koleszar committed
63 64
} FRAME_TYPE;

Dmitry Kovalev's avatar
Dmitry Kovalev committed
65
typedef enum {
Adrian Grange's avatar
Adrian Grange committed
66 67 68 69
  EIGHTTAP_SMOOTH,
  EIGHTTAP,
  EIGHTTAP_SHARP,
  BILINEAR,
70 71 72
  SWITCHABLE  /* should be the last one */
} INTERPOLATIONFILTERTYPE;

Dmitry Kovalev's avatar
Dmitry Kovalev committed
73
typedef enum {
74 75 76 77 78 79 80 81 82 83
  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
84 85 86 87 88
  NEARESTMV,
  NEARMV,
  ZEROMV,
  NEWMV,
  MB_MODE_COUNT
John Koleszar's avatar
John Koleszar committed
89 90
} MB_PREDICTION_MODE;

91
static INLINE int is_inter_mode(MB_PREDICTION_MODE mode) {
Ronald S. Bultje's avatar
Ronald S. Bultje committed
92
  return mode >= NEARESTMV && mode <= NEWMV;
93 94
}

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
  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
109
  TX_32X32 = 3,                    // 32x32 dct transform
Yaowu Xu's avatar
Yaowu Xu committed
110
  TX_SIZE_MAX_SB,                  // Number of transforms available to SBs
Paul Wilkins's avatar
Paul Wilkins committed
111 112
} TX_SIZE;

Jingning Han's avatar
Jingning Han committed
113 114
typedef enum {
  DCT_DCT   = 0,                      // DCT  in both horizontal and vertical
115 116
  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
117 118 119
  ADST_ADST = 3                       // ADST in both directions
} TX_TYPE;

120
#define VP9_INTRA_MODES (TM_PRED + 1)
John Koleszar's avatar
John Koleszar committed
121

122
#define VP9_INTER_MODES (1 + NEWMV - NEARESTMV)
John Koleszar's avatar
John Koleszar committed
123

Yaowu Xu's avatar
Yaowu Xu committed
124
#define WHT_UPSCALE_FACTOR 2
125

John Koleszar's avatar
John Koleszar committed
126 127 128 129
/* 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
130
union b_mode_info {
131
  MB_PREDICTION_MODE as_mode;
132
  int_mv as_mv[2];  // first, second inter predictor motion vectors
133
};
John Koleszar's avatar
John Koleszar committed
134

John Koleszar's avatar
John Koleszar committed
135
typedef enum {
136
  NONE = -1,
John Koleszar's avatar
John Koleszar committed
137 138 139 140 141
  INTRA_FRAME = 0,
  LAST_FRAME = 1,
  GOLDEN_FRAME = 2,
  ALTREF_FRAME = 3,
  MAX_REF_FRAMES = 4
John Koleszar's avatar
John Koleszar committed
142 143
} MV_REFERENCE_FRAME;

144
static INLINE int b_width_log2(BLOCK_SIZE_TYPE sb_type) {
145
  return b_width_log2_lookup[sb_type];
146
}
147
static INLINE int b_height_log2(BLOCK_SIZE_TYPE sb_type) {
148
  return b_height_log2_lookup[sb_type];
149
}
Ronald S. Bultje's avatar
Ronald S. Bultje committed
150

151 152
static INLINE int mi_width_log2(BLOCK_SIZE_TYPE sb_type) {
  int a = b_width_log2(sb_type) - 1;
153 154 155
  // align 4x4 block to mode_info
  if (a < 0)
    a = 0;
156 157
  assert(a >= 0);
  return a;
158 159
}

160 161
static INLINE int mi_height_log2(BLOCK_SIZE_TYPE sb_type) {
  int a = b_height_log2(sb_type) - 1;
162 163
  if (a < 0)
    a = 0;
164 165
  assert(a >= 0);
  return a;
166 167
}

John Koleszar's avatar
John Koleszar committed
168 169
typedef struct {
  MB_PREDICTION_MODE mode, uv_mode;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
170
  MV_REFERENCE_FRAME ref_frame[2];
John Koleszar's avatar
John Koleszar committed
171
  TX_SIZE txfm_size;
172
  int_mv mv[2]; // for each reference frame used
Paul Wilkins's avatar
Paul Wilkins committed
173
  int_mv ref_mvs[MAX_REF_FRAMES][MAX_MV_REF_CANDIDATES];
Deb Mukherjee's avatar
Deb Mukherjee committed
174
  int_mv best_mv, best_second_mv;
Paul Wilkins's avatar
Paul Wilkins committed
175

176
  uint8_t mb_mode_context[MAX_REF_FRAMES];
Paul Wilkins's avatar
Paul Wilkins committed
177

John Koleszar's avatar
John Koleszar committed
178
  unsigned char mb_skip_coeff;                                /* does this mb has coefficients at all, 1=no coefficients, 0=need decode tokens */
179
  unsigned char segment_id;           // Segment id for current frame
John Koleszar's avatar
John Koleszar committed
180 181 182 183 184 185 186 187

  // 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;
188

189
  INTERPOLATIONFILTERTYPE interp_filter;
190

Ronald S. Bultje's avatar
Ronald S. Bultje committed
191
  BLOCK_SIZE_TYPE sb_type;
John Koleszar's avatar
John Koleszar committed
192 193
} MB_MODE_INFO;

John Koleszar's avatar
John Koleszar committed
194 195
typedef struct {
  MB_MODE_INFO mbmi;
196
  union b_mode_info bmi[4];
John Koleszar's avatar
John Koleszar committed
197 198
} MODE_INFO;

199 200 201 202 203
enum mv_precision {
  MV_PRECISION_Q3,
  MV_PRECISION_Q4
};

204
#define VP9_REF_SCALE_SHIFT 14
205
struct scale_factors {
206 207
  int x_scale_fp;   // horizontal fixed point scale factor
  int y_scale_fp;   // vertical fixed point scale factor
208
  int x_offset_q4;
209
  int x_step_q4;
210
  int y_offset_q4;
211
  int y_step_q4;
212 213 214 215

  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);
216 217
  MV32 (*scale_mv_q3_to_q4)(const MV *mv, const struct scale_factors *scale);
  MV32 (*scale_mv_q4)(const MV *mv, const struct scale_factors *scale);
218

219
  convolve_fn_t predict[2][2][2];  // horiz, vert, avg
220 221
};

222 223 224
#if CONFIG_ALPHA
enum { MAX_MB_PLANE = 4 };
#else
225
enum { MAX_MB_PLANE = 3 };
226
#endif
227

228 229 230 231 232
struct buf_2d {
  uint8_t *buf;
  int stride;
};

233
struct macroblockd_plane {
234 235
  DECLARE_ALIGNED(16, int16_t,  qcoeff[64 * 64]);
  DECLARE_ALIGNED(16, int16_t,  dqcoeff[64 * 64]);
John Koleszar's avatar
John Koleszar committed
236
  DECLARE_ALIGNED(16, uint16_t, eobs[256]);
237 238 239
  PLANE_TYPE plane_type;
  int subsampling_x;
  int subsampling_y;
240 241
  struct buf_2d dst;
  struct buf_2d pre[2];
242
  int16_t *dequant;
243 244
  ENTROPY_CONTEXT *above_context;
  ENTROPY_CONTEXT *left_context;
245 246 247 248
};

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

Jim Bankoski's avatar
Jim Bankoski committed
249
typedef struct macroblockd {
250
  struct macroblockd_plane plane[MAX_MB_PLANE];
251

252 253
  struct scale_factors scale_factor[2];
  struct scale_factors scale_factor_uv[2];
John Koleszar's avatar
John Koleszar committed
254

John Koleszar's avatar
John Koleszar committed
255 256 257
  MODE_INFO *prev_mode_info_context;
  MODE_INFO *mode_info_context;
  int mode_info_stride;
John Koleszar's avatar
John Koleszar committed
258

John Koleszar's avatar
John Koleszar committed
259
  FRAME_TYPE frame_type;
John Koleszar's avatar
John Koleszar committed
260

John Koleszar's avatar
John Koleszar committed
261 262
  int up_available;
  int left_available;
263
  int right_available;
John Koleszar's avatar
John Koleszar committed
264

265 266 267 268
  // partition contexts
  PARTITION_CONTEXT *above_seg_context;
  PARTITION_CONTEXT *left_seg_context;

269
  /* 0 (disable) 1 (enable) segmentation */
John Koleszar's avatar
John Koleszar committed
270
  unsigned char segmentation_enabled;
John Koleszar's avatar
John Koleszar committed
271

John Koleszar's avatar
John Koleszar committed
272 273
  /* 0 (do not update) 1 (update) the macroblock segmentation map. */
  unsigned char update_mb_segmentation_map;
John Koleszar's avatar
John Koleszar committed
274

John Koleszar's avatar
John Koleszar committed
275 276
  /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
  unsigned char update_mb_segmentation_data;
John Koleszar's avatar
John Koleszar committed
277

John Koleszar's avatar
John Koleszar committed
278 279
  /* 0 (do not update) 1 (update) the macroblock segmentation feature data. */
  unsigned char mb_segment_abs_delta;
John Koleszar's avatar
John Koleszar committed
280

John Koleszar's avatar
John Koleszar committed
281 282
  /* 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 */
283

John Koleszar's avatar
John Koleszar committed
284
  // Probability Tree used to code Segment number
285
  vp9_prob mb_segment_tree_probs[MB_SEG_TREE_PROBS];
286

John Koleszar's avatar
John Koleszar committed
287
  // Segment features
288
  int16_t segment_feature_data[MAX_MB_SEGMENTS][SEG_LVL_MAX];
John Koleszar's avatar
John Koleszar committed
289
  unsigned int segment_feature_mask[MAX_MB_SEGMENTS];
John Koleszar's avatar
John Koleszar committed
290

John Koleszar's avatar
John Koleszar committed
291 292 293 294 295
  /* 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
296 297 298 299
  /* 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];
300

301
  /* 0 = ZERO_MV, MV */
Yaowu Xu's avatar
Yaowu Xu committed
302
  signed char last_mode_lf_deltas[MAX_MODE_LF_DELTAS];
303
  /* 0 = ZERO_MV, MV */
Yaowu Xu's avatar
Yaowu Xu committed
304
  signed char mode_lf_deltas[MAX_MODE_LF_DELTAS];
John Koleszar's avatar
John Koleszar committed
305 306 307 308 309 310 311 312 313

  /* 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;
314

Yaowu Xu's avatar
Yaowu Xu committed
315
  int lossless;
316
  /* Inverse transform function pointers. */
Scott LaVarnway's avatar
Scott LaVarnway committed
317 318
  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);
319
  void (*itxm_add)(int16_t *input, uint8_t *dest, int stride, int eob);
320

321
  struct subpix_fn_table  subpix;
322

John Koleszar's avatar
John Koleszar committed
323
  int allow_high_precision_mv;
John Koleszar's avatar
John Koleszar committed
324

John Koleszar's avatar
John Koleszar committed
325
  int corrupted;
326

327 328 329
  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
330
  int ab_index;   // index of 4x4 block inside the 8x8 block
Jingning Han's avatar
Jingning Han committed
331 332
  int q_index;

John Koleszar's avatar
John Koleszar committed
333 334
} MACROBLOCKD;

335 336
static int *get_sb_index(MACROBLOCKD *xd, BLOCK_SIZE_TYPE subsize) {
  switch (subsize) {
337
    case BLOCK_SIZE_SB64X64:
338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359
    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;
  }
}

360 361 362
static INLINE void update_partition_context(MACROBLOCKD *xd,
                                            BLOCK_SIZE_TYPE sb_type,
                                            BLOCK_SIZE_TYPE sb_size) {
James Zern's avatar
James Zern committed
363 364 365 366 367 368 369
  const int bsl = b_width_log2(sb_size), bs = (1 << bsl) / 2;
  const int bwl = b_width_log2(sb_type);
  const int bhl = b_height_log2(sb_type);
  const int boffset = b_width_log2(BLOCK_SIZE_SB64X64) - bsl;
  const char pcval0 = ~(0xe << boffset);
  const char pcval1 = ~(0xf << boffset);
  const char pcvalue[2] = {pcval0, pcval1};
370 371

  assert(MAX(bwl, bhl) <= bsl);
372

373 374 375
  // 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.
376 377
  vpx_memset(xd->above_seg_context, pcvalue[bwl == bsl], bs);
  vpx_memset(xd->left_seg_context, pcvalue[bhl == bsl], bs);
378 379 380 381
}

static INLINE int partition_plane_context(MACROBLOCKD *xd,
                                          BLOCK_SIZE_TYPE sb_type) {
382
  int bsl = mi_width_log2(sb_type), bs = 1 << bsl;
383
  int above = 0, left = 0, i;
384
  int boffset = mi_width_log2(BLOCK_SIZE_SB64X64) - bsl;
385

386
  assert(mi_width_log2(sb_type) == mi_height_log2(sb_type));
387 388 389 390 391 392 393 394 395 396 397
  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);

398
  return (left * 2 + above) + bsl * PARTITION_PLOFFSET;
399 400
}

401 402 403 404 405 406 407 408 409 410 411 412 413 414
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;
415 416
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_SB8X4;
417 418 419 420 421 422 423 424 425 426
      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;
427 428
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_SB4X8;
429 430 431 432 433 434 435 436 437 438
      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;
439 440
      else if (bsize == BLOCK_SIZE_SB8X8)
        subsize = BLOCK_SIZE_AB4X4;
441 442 443 444 445 446 447 448 449
      else
        assert(0);
      break;
    default:
      assert(0);
  }
  return subsize;
}

450
extern const TX_TYPE mode2txfm_map[MB_MODE_COUNT];
451

452
static INLINE TX_TYPE get_tx_type_4x4(const MACROBLOCKD *xd, int ib) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
453
  MODE_INFO *const mi = xd->mode_info_context;
Ronald S. Bultje's avatar
Ronald S. Bultje committed
454
  MB_MODE_INFO *const mbmi = &mi->mbmi;
Dmitry Kovalev's avatar
Dmitry Kovalev committed
455

Ronald S. Bultje's avatar
Ronald S. Bultje committed
456
  if (xd->lossless || mbmi->ref_frame[0] != INTRA_FRAME)
Yaowu Xu's avatar
Yaowu Xu committed
457
    return DCT_DCT;
Dmitry Kovalev's avatar
Dmitry Kovalev committed
458

459
  return mode2txfm_map[mbmi->sb_type < BLOCK_SIZE_SB8X8 ?
460
                       mi->bmi[ib].as_mode : mbmi->mode];
Deb Mukherjee's avatar
Deb Mukherjee committed
461 462
}

463 464
static INLINE TX_TYPE get_tx_type_8x8(const MACROBLOCKD *xd) {
  return mode2txfm_map[xd->mode_info_context->mbmi.mode];
465
}
466

467 468
static INLINE TX_TYPE get_tx_type_16x16(const MACROBLOCKD *xd) {
  return  mode2txfm_map[xd->mode_info_context->mbmi.mode];
Deb Mukherjee's avatar
Deb Mukherjee committed
469 470
}

471 472 473 474 475 476 477 478 479 480 481 482 483 484 485
static void setup_block_dptrs(MACROBLOCKD *xd, int ss_x, int ss_y) {
  int i;

  for (i = 0; i < MAX_MB_PLANE; i++) {
    xd->plane[i].plane_type = i ? PLANE_TYPE_UV : PLANE_TYPE_Y_WITH_DC;
    xd->plane[i].subsampling_x = i ? ss_x : 0;
    xd->plane[i].subsampling_y = i ? ss_y : 0;
  }
#if CONFIG_ALPHA
  // TODO(jkoleszar): Using the Y w/h for now
  mb->plane[3].subsampling_x = 0;
  mb->plane[3].subsampling_y = 0;
#endif
}

John Koleszar's avatar
John Koleszar committed
486

487
static TX_SIZE get_uv_tx_size(const MB_MODE_INFO *mbmi) {
Dmitry Kovalev's avatar
Dmitry Kovalev committed
488 489 490 491 492
  const TX_SIZE size = mbmi->txfm_size;

  switch (mbmi->sb_type) {
    case BLOCK_SIZE_SB64X64:
      return size;
493 494
    case BLOCK_SIZE_SB64X32:
    case BLOCK_SIZE_SB32X64:
Dmitry Kovalev's avatar
Dmitry Kovalev committed
495 496 497 498 499
    case BLOCK_SIZE_SB32X32:
      if (size == TX_32X32)
        return TX_16X16;
      else
        return size;
500 501 502 503 504 505 506 507 508
    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;
509
  }
Dmitry Kovalev's avatar
Dmitry Kovalev committed
510 511

  return size;
512
}
513

514 515 516 517 518 519 520
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
521
static INLINE struct plane_block_idx plane_block_idx(int y_blocks,
522
                                                     int b_idx) {
John Koleszar's avatar
John Koleszar committed
523
  const int v_offset = y_blocks * 5 / 4;
524 525
  struct plane_block_idx res;

John Koleszar's avatar
John Koleszar committed
526
  if (b_idx < y_blocks) {
527 528 529 530
    res.plane = 0;
    res.block = b_idx;
  } else if (b_idx < v_offset) {
    res.plane = 1;
John Koleszar's avatar
John Koleszar committed
531
    res.block = b_idx - y_blocks;
532
  } else {
John Koleszar's avatar
John Koleszar committed
533
    assert(b_idx < y_blocks * 3 / 2);
534 535 536 537 538 539
    res.plane = 2;
    res.block = b_idx - v_offset;
  }
  return res;
}

540 541 542 543 544 545 546 547 548 549
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
550
typedef void (*foreach_transformed_block_visitor)(int plane, int block,
551
                                                  BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
552 553
                                                  int ss_txfrm_size,
                                                  void *arg);
Jingning Han's avatar
Jingning Han committed
554

John Koleszar's avatar
John Koleszar committed
555
static INLINE void foreach_transformed_block_in_plane(
556
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize, int plane,
557
    foreach_transformed_block_visitor visit, void *arg) {
558 559
  const int bw = b_width_log2(bsize), bh = b_height_log2(bsize);

John Koleszar's avatar
John Koleszar committed
560 561
  // 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
562
  // transform size varies per plane, look it up in a common way.
563 564 565
  const MB_MODE_INFO* mbmi = &xd->mode_info_context->mbmi;
  const TX_SIZE tx_size = plane ? get_uv_tx_size(mbmi)
                                : mbmi->txfm_size;
566
  const int block_size_b = bw + bh;
John Koleszar's avatar
John Koleszar committed
567 568 569
  const int txfrm_size_b = tx_size * 2;

  // subsampled size of the block
570 571
  const int ss_sum = xd->plane[plane].subsampling_x
      + xd->plane[plane].subsampling_y;
John Koleszar's avatar
John Koleszar committed
572 573
  const int ss_block_size = block_size_b - ss_sum;

John Koleszar's avatar
John Koleszar committed
574
  const int step = 1 << txfrm_size_b;
John Koleszar's avatar
John Koleszar committed
575 576 577 578

  int i;

  assert(txfrm_size_b <= block_size_b);
John Koleszar's avatar
John Koleszar committed
579
  assert(txfrm_size_b <= ss_block_size);
580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615

  // 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
616 617 618 619
  }
}

static INLINE void foreach_transformed_block(
620
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
621 622 623 624
    foreach_transformed_block_visitor visit, void *arg) {
  int plane;

  for (plane = 0; plane < MAX_MB_PLANE; plane++) {
625
    foreach_transformed_block_in_plane(xd, bsize, plane,
John Koleszar's avatar
John Koleszar committed
626 627 628
                                       visit, arg);
  }
}
629

630
static INLINE void foreach_transformed_block_uv(
631
    const MACROBLOCKD* const xd, BLOCK_SIZE_TYPE bsize,
632 633 634 635
    foreach_transformed_block_visitor visit, void *arg) {
  int plane;

  for (plane = 1; plane < MAX_MB_PLANE; plane++) {
636
    foreach_transformed_block_in_plane(xd, bsize, plane,
637 638 639 640
                                       visit, arg);
  }
}

641 642 643 644 645 646 647 648 649 650
// 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) {
651
  int i, x, y;
652 653 654 655

  // 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
656 657
  const int bwl = b_width_log2(bsize) - xd->plane[plane].subsampling_x;
  const int bhl = b_height_log2(bsize) - xd->plane[plane].subsampling_y;
658 659

  // size of the predictor to use.
660 661
  int pred_w, pred_h;

Ronald S. Bultje's avatar
Ronald S. Bultje committed
662 663
  if (xd->mode_info_context->mbmi.sb_type < BLOCK_SIZE_SB8X8) {
    assert(bsize == BLOCK_SIZE_SB8X8);
664 665
    pred_w = 0;
    pred_h = 0;
666
  } else {
667 668
    pred_w = bwl;
    pred_h = bhl;
669
  }
670 671
  assert(pred_w <= bwl);
  assert(pred_h <= bhl);
672 673 674

  // visit each subblock in raster order
  i = 0;
675 676
  for (y = 0; y < 1 << bhl; y += 1 << pred_h) {
    for (x = 0; x < 1 << bwl; x += 1 << pred_w) {
677 678 679
      visit(plane, i, bsize, pred_w, pred_h, arg);
      i += 1 << pred_w;
    }
680
    i += (1 << (bwl + pred_h)) - (1 << bwl);
681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700
  }
}
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);
  }
}
701
static int raster_block_offset(MACROBLOCKD *xd, BLOCK_SIZE_TYPE bsize,
John Koleszar's avatar
John Koleszar committed
702
                               int plane, int block, int stride) {
703 704 705 706 707 708 709
  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) {
710
  const int stride = plane_block_width(bsize, &xd->plane[plane]);
John Koleszar's avatar
John Koleszar committed
711 712 713 714 715 716 717
  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);
718
}
719

John Koleszar's avatar
John Koleszar committed
720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746
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);
}
747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831

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;
}


832
#endif  // VP9_COMMON_VP9_BLOCKD_H_