ladybird/Userland/Libraries/LibVideo/VP9/LookupTables.h

/*
 * Copyright (c) 2021, Hunter Salyer <thefalsehonesty@gmail.com>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include "Enums.h"
#include "Symbols.h"

namespace Video::VP9 {

static constexpr InterpolationFilter literal_to_type[4] = { EightTapSmooth, EightTap, EightTapSharp, Bilinear };
static constexpr TXSize tx_mode_to_biggest_tx_size[TX_MODES] = { TX4x4, TX8x8, TX16x16, TX32x32, TX32x32 };
static constexpr u8 segmentation_feature_bits[SEG_LVL_MAX] = { 8, 6, 2, 0 };
static constexpr bool segmentation_feature_signed[SEG_LVL_MAX] = { true, true, false, false };
static constexpr u8 inv_map_table[MAX_PROB] = {
    7, 20, 33, 46, 59, 72, 85, 98, 111, 124, 137, 150, 163, 176, 189, 202, 215, 228, 241, 254,
    1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27,
    28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52,
    53, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77,
    78, 79, 80, 81, 82, 83, 84, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 99, 100, 101, 102,
    103, 104, 105, 106, 107, 108, 109, 110, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122,
    123, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 138, 139, 140, 141, 142, 143,
    144, 145, 146, 147, 148, 149, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 164,
    165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 177, 178, 179, 180, 181, 182, 183, 184,
    185, 186, 187, 188, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 203, 204, 205,
    206, 207, 208, 209, 210, 211, 212, 213, 214, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225,
    226, 227, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 242, 243, 244, 245, 246,
    247, 248, 249, 250, 251, 252, 253, 253
};
static constexpr u8 num_8x8_blocks_wide_lookup[BLOCK_SIZES] = { 1, 1, 1, 1, 1, 2, 2, 2, 4, 4, 4, 8, 8 };
static constexpr BlockSubsize subsize_lookup[PARTITION_TYPES][BLOCK_SIZES] = {
    {
        // PARTITION_NONE
        Block_4x4,
        Block_4x8,
        Block_8x4,
        Block_8x8,
        Block_8x16,
        Block_16x8,
        Block_16x16,
        Block_16x32,
        Block_32x16,
        Block_32x32,
        Block_32x64,
        Block_64x32,
        Block_64x64,
    },
    {
        // PARTITION_HORZ
        Block_Invalid,
        Block_Invalid,
        Block_Invalid,
        Block_8x4,
        Block_Invalid,
        Block_Invalid,
        Block_16x8,
        Block_Invalid,
        Block_Invalid,
        Block_32x16,
        Block_Invalid,
        Block_Invalid,
        Block_64x32,
    },
    {
        // PARTITION_VERT
        Block_Invalid,
        Block_Invalid,
        Block_Invalid,
        Block_4x8,
        Block_Invalid,
        Block_Invalid,
        Block_8x16,
        Block_Invalid,
        Block_Invalid,
        Block_16x32,
        Block_Invalid,
        Block_Invalid,
        Block_32x64,
    },
    {
        // PARTITION_SPLIT
        Block_Invalid,
        Block_Invalid,
        Block_Invalid,
        Block_4x4,
        Block_Invalid,
        Block_Invalid,
        Block_8x8,
        Block_Invalid,
        Block_Invalid,
        Block_16x16,
        Block_Invalid,
        Block_Invalid,
        Block_32x32,
    }
};

}