vp9/common/vp9_common_data.c

/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */


#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_common_data.h"

// Log 2 conversion lookup tables for block width and height
const int b_width_log2_lookup[BLOCK_SIZE_TYPES] =
  {0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4};
const int b_height_log2_lookup[BLOCK_SIZE_TYPES] =
  {0, 1, 0, 1, 2, 1, 2, 3, 2, 3, 4, 3, 4};
const int num_4x4_blocks_wide_lookup[BLOCK_SIZE_TYPES] =
  {1, 1, 2, 2, 2, 4, 4, 4, 8, 8, 8, 16, 16};
const int num_4x4_blocks_high_lookup[BLOCK_SIZE_TYPES] =
  {1, 2, 1, 2, 4, 2, 4, 8, 4, 8, 16, 8, 16};
// Log 2 conversion lookup tables for modeinfo width and height
const int mi_width_log2_lookup[BLOCK_SIZE_TYPES] =
  {0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3};
const int num_8x8_blocks_wide_lookup[BLOCK_SIZE_TYPES] =
  {1, 1, 1, 1, 1, 2, 2, 2, 4, 4, 4, 8, 8};
const int mi_height_log2_lookup[BLOCK_SIZE_TYPES] =
  {0, 0, 0, 0, 1, 0, 1, 2, 1, 2, 3, 2, 3};
const int num_8x8_blocks_high_lookup[BLOCK_SIZE_TYPES] =
  {1, 1, 1, 1, 2, 1, 2, 4, 2, 4, 8, 4, 8};

const PARTITION_TYPE partition_lookup[][BLOCK_SIZE_TYPES] = {
  {  // 4X4
    // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
    PARTITION_NONE, PARTITION_INVALID, PARTITION_INVALID,
    PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
    PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
    PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
    PARTITION_INVALID
  }, {  // 8X8
  // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
    PARTITION_SPLIT, PARTITION_VERT, PARTITION_HORZ, PARTITION_NONE,
    PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
    PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
    PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID
  }, {  // 16X16
  // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
    PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT,
    PARTITION_VERT, PARTITION_HORZ, PARTITION_NONE, PARTITION_INVALID,
    PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID,
    PARTITION_INVALID, PARTITION_INVALID
  }, {  // 32X32
  // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
    PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT,
    PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_VERT,
    PARTITION_HORZ, PARTITION_NONE, PARTITION_INVALID,
    PARTITION_INVALID, PARTITION_INVALID
  }, {  // 64X64
  // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64
    PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT,
    PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT,
    PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_VERT, PARTITION_HORZ,
    PARTITION_NONE
  }
};

const BLOCK_SIZE_TYPE subsize_lookup[PARTITION_TYPES][BLOCK_SIZE_TYPES] = {
  {     // PARTITION_NONE
    BLOCK_SIZE_AB4X4, BLOCK_SIZE_SB4X8, BLOCK_SIZE_SB8X4,
    BLOCK_SIZE_SB8X8, BLOCK_SIZE_SB8X16, BLOCK_SIZE_SB16X8,
    BLOCK_SIZE_MB16X16, BLOCK_SIZE_SB16X32, BLOCK_SIZE_SB32X16,
    BLOCK_SIZE_SB32X32, BLOCK_SIZE_SB32X64, BLOCK_SIZE_SB64X32,
    BLOCK_SIZE_SB64X64,
  }, {  // PARTITION_HORZ
    BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB8X4, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB16X8, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB32X16, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB64X32,
  }, {  // PARTITION_VERT
    BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB4X8, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB8X16, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB16X32, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB32X64,
  }, {  // PARTITION_SPLIT
    BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_AB4X4, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB8X8, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_MB16X16, BLOCK_SIZE_TYPES, BLOCK_SIZE_TYPES,
    BLOCK_SIZE_SB32X32,
  }
};

const TX_SIZE max_txsize_lookup[BLOCK_SIZE_TYPES] = {
  TX_4X4, TX_4X4, TX_4X4,
  TX_8X8, TX_8X8, TX_8X8,
  TX_16X16, TX_16X16, TX_16X16,
  TX_32X32, TX_32X32, TX_32X32, TX_32X32
};
const TX_SIZE max_uv_txsize_lookup[BLOCK_SIZE_TYPES] = {
  TX_4X4, TX_4X4, TX_4X4,
  TX_4X4, TX_4X4, TX_4X4,
  TX_8X8, TX_8X8, TX_8X8,
  TX_16X16, TX_16X16, TX_16X16, TX_32X32
};

const BLOCK_SIZE_TYPE bsize_from_dim_lookup[5][5] = {
  {BLOCK_SIZE_AB4X4,   BLOCK_SIZE_SB4X8,   BLOCK_SIZE_SB4X8,
    BLOCK_SIZE_SB4X8,   BLOCK_SIZE_SB4X8},
  {BLOCK_SIZE_SB8X4,   BLOCK_SIZE_SB8X8,   BLOCK_SIZE_SB8X16,
    BLOCK_SIZE_SB8X16,  BLOCK_SIZE_SB8X16},
  {BLOCK_SIZE_SB16X8,  BLOCK_SIZE_SB16X8,  BLOCK_SIZE_MB16X16,
    BLOCK_SIZE_SB16X32, BLOCK_SIZE_SB16X32},
  {BLOCK_SIZE_SB32X16, BLOCK_SIZE_SB32X16, BLOCK_SIZE_SB32X16,
    BLOCK_SIZE_SB32X32, BLOCK_SIZE_SB32X64},
  {BLOCK_SIZE_SB64X32, BLOCK_SIZE_SB64X32, BLOCK_SIZE_SB64X32,
    BLOCK_SIZE_SB64X32, BLOCK_SIZE_SB64X64}
};