1/* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11#include "vp9/common/vp9_common_data.h" 12#include "vpx_dsp/vpx_dsp_common.h" 13 14// Log 2 conversion lookup tables for block width and height 15const uint8_t b_width_log2_lookup[BLOCK_SIZES] = 16 {0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4}; 17const uint8_t b_height_log2_lookup[BLOCK_SIZES] = 18 {0, 1, 0, 1, 2, 1, 2, 3, 2, 3, 4, 3, 4}; 19const uint8_t num_4x4_blocks_wide_lookup[BLOCK_SIZES] = 20 {1, 1, 2, 2, 2, 4, 4, 4, 8, 8, 8, 16, 16}; 21const uint8_t num_4x4_blocks_high_lookup[BLOCK_SIZES] = 22 {1, 2, 1, 2, 4, 2, 4, 8, 4, 8, 16, 8, 16}; 23// Log 2 conversion lookup tables for modeinfo width and height 24const uint8_t mi_width_log2_lookup[BLOCK_SIZES] = 25 {0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3}; 26const uint8_t num_8x8_blocks_wide_lookup[BLOCK_SIZES] = 27 {1, 1, 1, 1, 1, 2, 2, 2, 4, 4, 4, 8, 8}; 28const uint8_t num_8x8_blocks_high_lookup[BLOCK_SIZES] = 29 {1, 1, 1, 1, 2, 1, 2, 4, 2, 4, 8, 4, 8}; 30 31// VPXMIN(3, VPXMIN(b_width_log2(bsize), b_height_log2(bsize))) 32const uint8_t size_group_lookup[BLOCK_SIZES] = 33 {0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3}; 34 35const uint8_t num_pels_log2_lookup[BLOCK_SIZES] = 36 {4, 5, 5, 6, 7, 7, 8, 9, 9, 10, 11, 11, 12}; 37 38const PARTITION_TYPE partition_lookup[][BLOCK_SIZES] = { 39 { // 4X4 40 // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64 41 PARTITION_NONE, PARTITION_INVALID, PARTITION_INVALID, 42 PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, 43 PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, 44 PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, 45 PARTITION_INVALID 46 }, { // 8X8 47 // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64 48 PARTITION_SPLIT, PARTITION_VERT, PARTITION_HORZ, PARTITION_NONE, 49 PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, 50 PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, 51 PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID 52 }, { // 16X16 53 // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64 54 PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, 55 PARTITION_VERT, PARTITION_HORZ, PARTITION_NONE, PARTITION_INVALID, 56 PARTITION_INVALID, PARTITION_INVALID, PARTITION_INVALID, 57 PARTITION_INVALID, PARTITION_INVALID 58 }, { // 32X32 59 // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64 60 PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, 61 PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_VERT, 62 PARTITION_HORZ, PARTITION_NONE, PARTITION_INVALID, 63 PARTITION_INVALID, PARTITION_INVALID 64 }, { // 64X64 65 // 4X4, 4X8,8X4,8X8,8X16,16X8,16X16,16X32,32X16,32X32,32X64,64X32,64X64 66 PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, 67 PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_SPLIT, 68 PARTITION_SPLIT, PARTITION_SPLIT, PARTITION_VERT, PARTITION_HORZ, 69 PARTITION_NONE 70 } 71}; 72 73const BLOCK_SIZE subsize_lookup[PARTITION_TYPES][BLOCK_SIZES] = { 74 { // PARTITION_NONE 75 BLOCK_4X4, BLOCK_4X8, BLOCK_8X4, 76 BLOCK_8X8, BLOCK_8X16, BLOCK_16X8, 77 BLOCK_16X16, BLOCK_16X32, BLOCK_32X16, 78 BLOCK_32X32, BLOCK_32X64, BLOCK_64X32, 79 BLOCK_64X64, 80 }, { // PARTITION_HORZ 81 BLOCK_INVALID, BLOCK_INVALID, BLOCK_INVALID, 82 BLOCK_8X4, BLOCK_INVALID, BLOCK_INVALID, 83 BLOCK_16X8, BLOCK_INVALID, BLOCK_INVALID, 84 BLOCK_32X16, BLOCK_INVALID, BLOCK_INVALID, 85 BLOCK_64X32, 86 }, { // PARTITION_VERT 87 BLOCK_INVALID, BLOCK_INVALID, BLOCK_INVALID, 88 BLOCK_4X8, BLOCK_INVALID, BLOCK_INVALID, 89 BLOCK_8X16, BLOCK_INVALID, BLOCK_INVALID, 90 BLOCK_16X32, BLOCK_INVALID, BLOCK_INVALID, 91 BLOCK_32X64, 92 }, { // PARTITION_SPLIT 93 BLOCK_INVALID, BLOCK_INVALID, BLOCK_INVALID, 94 BLOCK_4X4, BLOCK_INVALID, BLOCK_INVALID, 95 BLOCK_8X8, BLOCK_INVALID, BLOCK_INVALID, 96 BLOCK_16X16, BLOCK_INVALID, BLOCK_INVALID, 97 BLOCK_32X32, 98 } 99}; 100 101const TX_SIZE max_txsize_lookup[BLOCK_SIZES] = { 102 TX_4X4, TX_4X4, TX_4X4, 103 TX_8X8, TX_8X8, TX_8X8, 104 TX_16X16, TX_16X16, TX_16X16, 105 TX_32X32, TX_32X32, TX_32X32, TX_32X32 106}; 107 108const BLOCK_SIZE txsize_to_bsize[TX_SIZES] = { 109 BLOCK_4X4, // TX_4X4 110 BLOCK_8X8, // TX_8X8 111 BLOCK_16X16, // TX_16X16 112 BLOCK_32X32, // TX_32X32 113}; 114 115const TX_SIZE tx_mode_to_biggest_tx_size[TX_MODES] = { 116 TX_4X4, // ONLY_4X4 117 TX_8X8, // ALLOW_8X8 118 TX_16X16, // ALLOW_16X16 119 TX_32X32, // ALLOW_32X32 120 TX_32X32, // TX_MODE_SELECT 121}; 122 123const BLOCK_SIZE ss_size_lookup[BLOCK_SIZES][2][2] = { 124// ss_x == 0 ss_x == 0 ss_x == 1 ss_x == 1 125// ss_y == 0 ss_y == 1 ss_y == 0 ss_y == 1 126 {{BLOCK_4X4, BLOCK_INVALID}, {BLOCK_INVALID, BLOCK_INVALID}}, 127 {{BLOCK_4X8, BLOCK_4X4}, {BLOCK_INVALID, BLOCK_INVALID}}, 128 {{BLOCK_8X4, BLOCK_INVALID}, {BLOCK_4X4, BLOCK_INVALID}}, 129 {{BLOCK_8X8, BLOCK_8X4}, {BLOCK_4X8, BLOCK_4X4}}, 130 {{BLOCK_8X16, BLOCK_8X8}, {BLOCK_INVALID, BLOCK_4X8}}, 131 {{BLOCK_16X8, BLOCK_INVALID}, {BLOCK_8X8, BLOCK_8X4}}, 132 {{BLOCK_16X16, BLOCK_16X8}, {BLOCK_8X16, BLOCK_8X8}}, 133 {{BLOCK_16X32, BLOCK_16X16}, {BLOCK_INVALID, BLOCK_8X16}}, 134 {{BLOCK_32X16, BLOCK_INVALID}, {BLOCK_16X16, BLOCK_16X8}}, 135 {{BLOCK_32X32, BLOCK_32X16}, {BLOCK_16X32, BLOCK_16X16}}, 136 {{BLOCK_32X64, BLOCK_32X32}, {BLOCK_INVALID, BLOCK_16X32}}, 137 {{BLOCK_64X32, BLOCK_INVALID}, {BLOCK_32X32, BLOCK_32X16}}, 138 {{BLOCK_64X64, BLOCK_64X32}, {BLOCK_32X64, BLOCK_32X32}}, 139}; 140 141// Generates 4 bit field in which each bit set to 1 represents 142// a blocksize partition 1111 means we split 64x64, 32x32, 16x16 143// and 8x8. 1000 means we just split the 64x64 to 32x32 144const struct { 145 PARTITION_CONTEXT above; 146 PARTITION_CONTEXT left; 147} partition_context_lookup[BLOCK_SIZES]= { 148 {15, 15}, // 4X4 - {0b1111, 0b1111} 149 {15, 14}, // 4X8 - {0b1111, 0b1110} 150 {14, 15}, // 8X4 - {0b1110, 0b1111} 151 {14, 14}, // 8X8 - {0b1110, 0b1110} 152 {14, 12}, // 8X16 - {0b1110, 0b1100} 153 {12, 14}, // 16X8 - {0b1100, 0b1110} 154 {12, 12}, // 16X16 - {0b1100, 0b1100} 155 {12, 8 }, // 16X32 - {0b1100, 0b1000} 156 {8, 12}, // 32X16 - {0b1000, 0b1100} 157 {8, 8 }, // 32X32 - {0b1000, 0b1000} 158 {8, 0 }, // 32X64 - {0b1000, 0b0000} 159 {0, 8 }, // 64X32 - {0b0000, 0b1000} 160 {0, 0 }, // 64X64 - {0b0000, 0b0000} 161}; 162