axmol/thirdparty/astc/astcenc_quantization.cpp

// SPDX-License-Identifier: Apache-2.0
// ----------------------------------------------------------------------------
// Copyright 2011-2021 Arm Limited
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at:
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
// ----------------------------------------------------------------------------

/**
 * @brief Functions and data tables for numeric quantization..
 */

#include "astcenc_internal.h"

#if !defined(ASTCENC_DECOMPRESS_ONLY)

const uint8_t color_quant_tables[21][256] = {
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
	},
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
	},
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
	},
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4
	},
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
	},
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
		0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6,
		6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
		6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7,
		7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7
	},
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 6, 6, 6, 6, 6, 6, 6, 6, 6,
		6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
		6, 6, 6, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
		8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
		9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
		9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7,
		7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
		7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
	},
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
		8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
		2, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
		6, 6, 6, 6, 6, 6, 6, 6, 6, 10, 10, 10, 10, 10, 10, 10,
		10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
		11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
		11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7,
		7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
		9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
	},
	{
		0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1,
		1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6,
		6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7,
		7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
		8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
		8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
		9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10,
		10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11,
		11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
		12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13,
		13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
		14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15
	},
	{
		0, 0, 0, 0, 0, 0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 4,
		4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
		8, 8, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,
		16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 6, 6, 6, 6, 6, 6,
		6, 6, 6, 6, 6, 6, 6, 6, 10, 10, 10, 10, 10, 10, 10, 10,
		10, 10, 10, 10, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14,
		14, 14, 14, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
		19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 15, 15, 15,
		15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 11, 11, 11, 11, 11,
		11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7,
		7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
		13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9,
		9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 5, 5, 5, 5, 5,
		5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1
	},
	{
		0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
		8, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 2, 2, 2, 2,
		2, 2, 2, 2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 10, 10,
		10, 10, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 4, 4, 12, 12, 12, 12, 12, 12, 12, 12,
		12, 12, 12, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 6, 6,
		6, 6, 6, 6, 6, 6, 6, 6, 6, 14, 14, 14, 14, 14, 14, 14,
		14, 14, 14, 14, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22,
		23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 15, 15, 15, 15,
		15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7,
		7, 7, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 13, 13, 13,
		13, 13, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5,
		5, 5, 5, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 11, 11,
		11, 11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3,
		3, 3, 3, 3, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 9,
		9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1
	},
	{
		0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2,
		2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4,
		4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6,
		6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8,
		8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10,
		10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12,
		12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13,
		14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15,
		16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17,
		18, 18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19,
		19, 20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21,
		21, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23,
		23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25,
		25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27,
		27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29,
		29, 29, 29, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31
	},
	{
		0, 0, 0, 0, 8, 8, 8, 8, 8, 8, 16, 16, 16, 16, 16, 16,
		16, 24, 24, 24, 24, 24, 24, 32, 32, 32, 32, 32, 32, 32, 2, 2,
		2, 2, 2, 2, 10, 10, 10, 10, 10, 10, 10, 18, 18, 18, 18, 18,
		18, 26, 26, 26, 26, 26, 26, 26, 34, 34, 34, 34, 34, 34, 4, 4,
		4, 4, 4, 4, 4, 12, 12, 12, 12, 12, 12, 20, 20, 20, 20, 20,
		20, 20, 28, 28, 28, 28, 28, 28, 36, 36, 36, 36, 36, 36, 36, 6,
		6, 6, 6, 6, 6, 14, 14, 14, 14, 14, 14, 14, 22, 22, 22, 22,
		22, 22, 30, 30, 30, 30, 30, 30, 30, 38, 38, 38, 38, 38, 38, 38,
		39, 39, 39, 39, 39, 39, 39, 31, 31, 31, 31, 31, 31, 31, 23, 23,
		23, 23, 23, 23, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7,
		7, 37, 37, 37, 37, 37, 37, 37, 29, 29, 29, 29, 29, 29, 21, 21,
		21, 21, 21, 21, 21, 13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5,
		5, 5, 35, 35, 35, 35, 35, 35, 27, 27, 27, 27, 27, 27, 27, 19,
		19, 19, 19, 19, 19, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3,
		3, 3, 33, 33, 33, 33, 33, 33, 33, 25, 25, 25, 25, 25, 25, 17,
		17, 17, 17, 17, 17, 17, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1
	},
	{
		0, 0, 0, 16, 16, 16, 16, 16, 16, 32, 32, 32, 32, 32, 2, 2,
		2, 2, 2, 18, 18, 18, 18, 18, 18, 34, 34, 34, 34, 34, 4, 4,
		4, 4, 4, 4, 20, 20, 20, 20, 20, 36, 36, 36, 36, 36, 6, 6,
		6, 6, 6, 6, 22, 22, 22, 22, 22, 38, 38, 38, 38, 38, 38, 8,
		8, 8, 8, 8, 24, 24, 24, 24, 24, 24, 40, 40, 40, 40, 40, 10,
		10, 10, 10, 10, 26, 26, 26, 26, 26, 26, 42, 42, 42, 42, 42, 12,
		12, 12, 12, 12, 12, 28, 28, 28, 28, 28, 44, 44, 44, 44, 44, 14,
		14, 14, 14, 14, 14, 30, 30, 30, 30, 30, 46, 46, 46, 46, 46, 46,
		47, 47, 47, 47, 47, 47, 31, 31, 31, 31, 31, 15, 15, 15, 15, 15,
		15, 45, 45, 45, 45, 45, 29, 29, 29, 29, 29, 13, 13, 13, 13, 13,
		13, 43, 43, 43, 43, 43, 27, 27, 27, 27, 27, 27, 11, 11, 11, 11,
		11, 41, 41, 41, 41, 41, 25, 25, 25, 25, 25, 25, 9, 9, 9, 9,
		9, 39, 39, 39, 39, 39, 39, 23, 23, 23, 23, 23, 7, 7, 7, 7,
		7, 7, 37, 37, 37, 37, 37, 21, 21, 21, 21, 21, 5, 5, 5, 5,
		5, 5, 35, 35, 35, 35, 35, 19, 19, 19, 19, 19, 19, 3, 3, 3,
		3, 3, 33, 33, 33, 33, 33, 17, 17, 17, 17, 17, 17, 1, 1, 1
	},
	{
		0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4,
		4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8,
		8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 11, 12,
		12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16,
		16, 16, 16, 16, 17, 17, 17, 17, 18, 18, 18, 18, 19, 19, 19, 19,
		20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 23, 23, 23, 23,
		24, 24, 24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 27, 27, 27, 27,
		28, 28, 28, 28, 29, 29, 29, 29, 30, 30, 30, 30, 31, 31, 31, 31,
		32, 32, 32, 32, 33, 33, 33, 33, 34, 34, 34, 34, 35, 35, 35, 35,
		36, 36, 36, 36, 37, 37, 37, 37, 38, 38, 38, 38, 39, 39, 39, 39,
		40, 40, 40, 40, 41, 41, 41, 41, 42, 42, 42, 42, 43, 43, 43, 43,
		44, 44, 44, 44, 45, 45, 45, 45, 46, 46, 46, 46, 47, 47, 47, 47,
		47, 48, 48, 48, 48, 49, 49, 49, 49, 50, 50, 50, 50, 51, 51, 51,
		51, 52, 52, 52, 52, 53, 53, 53, 53, 54, 54, 54, 54, 55, 55, 55,
		55, 56, 56, 56, 56, 57, 57, 57, 57, 58, 58, 58, 58, 59, 59, 59,
		59, 60, 60, 60, 60, 61, 61, 61, 61, 62, 62, 62, 62, 63, 63, 63
	},
	{
		0, 0, 16, 16, 16, 32, 32, 32, 48, 48, 48, 48, 64, 64, 64, 2,
		2, 2, 18, 18, 18, 34, 34, 34, 50, 50, 50, 50, 66, 66, 66, 4,
		4, 4, 20, 20, 20, 36, 36, 36, 36, 52, 52, 52, 68, 68, 68, 6,
		6, 6, 22, 22, 22, 38, 38, 38, 38, 54, 54, 54, 70, 70, 70, 8,
		8, 8, 24, 24, 24, 24, 40, 40, 40, 56, 56, 56, 72, 72, 72, 10,
		10, 10, 26, 26, 26, 26, 42, 42, 42, 58, 58, 58, 74, 74, 74, 12,
		12, 12, 12, 28, 28, 28, 44, 44, 44, 60, 60, 60, 76, 76, 76, 14,
		14, 14, 14, 30, 30, 30, 46, 46, 46, 62, 62, 62, 78, 78, 78, 78,
		79, 79, 79, 79, 63, 63, 63, 47, 47, 47, 31, 31, 31, 15, 15, 15,
		15, 77, 77, 77, 61, 61, 61, 45, 45, 45, 29, 29, 29, 13, 13, 13,
		13, 75, 75, 75, 59, 59, 59, 43, 43, 43, 27, 27, 27, 27, 11, 11,
		11, 73, 73, 73, 57, 57, 57, 41, 41, 41, 25, 25, 25, 25, 9, 9,
		9, 71, 71, 71, 55, 55, 55, 39, 39, 39, 39, 23, 23, 23, 7, 7,
		7, 69, 69, 69, 53, 53, 53, 37, 37, 37, 37, 21, 21, 21, 5, 5,
		5, 67, 67, 67, 51, 51, 51, 51, 35, 35, 35, 19, 19, 19, 3, 3,
		3, 65, 65, 65, 49, 49, 49, 49, 33, 33, 33, 17, 17, 17, 1, 1
	},
	{
		0, 0, 32, 32, 64, 64, 64, 2, 2, 2, 34, 34, 66, 66, 66, 4,
		4, 4, 36, 36, 68, 68, 68, 6, 6, 6, 38, 38, 70, 70, 70, 8,
		8, 8, 40, 40, 40, 72, 72, 10, 10, 10, 42, 42, 42, 74, 74, 12,
		12, 12, 44, 44, 44, 76, 76, 14, 14, 14, 46, 46, 46, 78, 78, 16,
		16, 16, 48, 48, 48, 80, 80, 80, 18, 18, 50, 50, 50, 82, 82, 82,
		20, 20, 52, 52, 52, 84, 84, 84, 22, 22, 54, 54, 54, 86, 86, 86,
		24, 24, 56, 56, 56, 88, 88, 88, 26, 26, 58, 58, 58, 90, 90, 90,
		28, 28, 60, 60, 60, 92, 92, 92, 30, 30, 62, 62, 62, 94, 94, 94,
		95, 95, 95, 63, 63, 63, 31, 31, 93, 93, 93, 61, 61, 61, 29, 29,
		91, 91, 91, 59, 59, 59, 27, 27, 89, 89, 89, 57, 57, 57, 25, 25,
		87, 87, 87, 55, 55, 55, 23, 23, 85, 85, 85, 53, 53, 53, 21, 21,
		83, 83, 83, 51, 51, 51, 19, 19, 81, 81, 81, 49, 49, 49, 17, 17,
		17, 79, 79, 47, 47, 47, 15, 15, 15, 77, 77, 45, 45, 45, 13, 13,
		13, 75, 75, 43, 43, 43, 11, 11, 11, 73, 73, 41, 41, 41, 9, 9,
		9, 71, 71, 71, 39, 39, 7, 7, 7, 69, 69, 69, 37, 37, 5, 5,
		5, 67, 67, 67, 35, 35, 3, 3, 3, 65, 65, 65, 33, 33, 1, 1
	},
	{
		0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7,
		8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15,
		16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23,
		24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31,
		32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39,
		40, 40, 41, 41, 42, 42, 43, 43, 44, 44, 45, 45, 46, 46, 47, 47,
		48, 48, 49, 49, 50, 50, 51, 51, 52, 52, 53, 53, 54, 54, 55, 55,
		56, 56, 57, 57, 58, 58, 59, 59, 60, 60, 61, 61, 62, 62, 63, 63,
		64, 64, 65, 65, 66, 66, 67, 67, 68, 68, 69, 69, 70, 70, 71, 71,
		72, 72, 73, 73, 74, 74, 75, 75, 76, 76, 77, 77, 78, 78, 79, 79,
		80, 80, 81, 81, 82, 82, 83, 83, 84, 84, 85, 85, 86, 86, 87, 87,
		88, 88, 89, 89, 90, 90, 91, 91, 92, 92, 93, 93, 94, 94, 95, 95,
		96, 96, 97, 97, 98, 98, 99, 99, 100, 100, 101, 101, 102, 102, 103, 103,
		104, 104, 105, 105, 106, 106, 107, 107, 108, 108, 109, 109, 110, 110, 111, 111,
		112, 112, 113, 113, 114, 114, 115, 115, 116, 116, 117, 117, 118, 118, 119, 119,
		120, 120, 121, 121, 122, 122, 123, 123, 124, 124, 125, 125, 126, 126, 127, 127
	},
	{
		0, 32, 32, 64, 96, 96, 128, 128, 2, 34, 34, 66, 98, 98, 130, 130,
		4, 36, 36, 68, 100, 100, 132, 132, 6, 38, 38, 70, 102, 102, 134, 134,
		8, 40, 40, 72, 104, 104, 136, 136, 10, 42, 42, 74, 106, 106, 138, 138,
		12, 44, 44, 76, 108, 108, 140, 140, 14, 46, 46, 78, 110, 110, 142, 142,
		16, 48, 48, 80, 112, 112, 144, 144, 18, 50, 50, 82, 114, 114, 146, 146,
		20, 52, 52, 84, 116, 116, 148, 148, 22, 54, 54, 86, 118, 118, 150, 150,
		24, 56, 56, 88, 120, 120, 152, 152, 26, 58, 58, 90, 122, 122, 154, 154,
		28, 60, 60, 92, 124, 124, 156, 156, 30, 62, 62, 94, 126, 126, 158, 158,
		159, 159, 127, 127, 95, 63, 63, 31, 157, 157, 125, 125, 93, 61, 61, 29,
		155, 155, 123, 123, 91, 59, 59, 27, 153, 153, 121, 121, 89, 57, 57, 25,
		151, 151, 119, 119, 87, 55, 55, 23, 149, 149, 117, 117, 85, 53, 53, 21,
		147, 147, 115, 115, 83, 51, 51, 19, 145, 145, 113, 113, 81, 49, 49, 17,
		143, 143, 111, 111, 79, 47, 47, 15, 141, 141, 109, 109, 77, 45, 45, 13,
		139, 139, 107, 107, 75, 43, 43, 11, 137, 137, 105, 105, 73, 41, 41, 9,
		135, 135, 103, 103, 71, 39, 39, 7, 133, 133, 101, 101, 69, 37, 37, 5,
		131, 131, 99, 99, 67, 35, 35, 3, 129, 129, 97, 97, 65, 33, 33, 1
	},
	{
		0, 64, 128, 128, 2, 66, 130, 130, 4, 68, 132, 132, 6, 70, 134, 134,
		8, 72, 136, 136, 10, 74, 138, 138, 12, 76, 140, 140, 14, 78, 142, 142,
		16, 80, 144, 144, 18, 82, 146, 146, 20, 84, 148, 148, 22, 86, 150, 150,
		24, 88, 152, 152, 26, 90, 154, 154, 28, 92, 156, 156, 30, 94, 158, 158,
		32, 96, 160, 160, 34, 98, 162, 162, 36, 100, 164, 164, 38, 102, 166, 166,
		40, 104, 168, 168, 42, 106, 170, 170, 44, 108, 172, 172, 46, 110, 174, 174,
		48, 112, 176, 176, 50, 114, 178, 178, 52, 116, 180, 180, 54, 118, 182, 182,
		56, 120, 184, 184, 58, 122, 186, 186, 60, 124, 188, 188, 62, 126, 190, 190,
		191, 191, 127, 63, 189, 189, 125, 61, 187, 187, 123, 59, 185, 185, 121, 57,
		183, 183, 119, 55, 181, 181, 117, 53, 179, 179, 115, 51, 177, 177, 113, 49,
		175, 175, 111, 47, 173, 173, 109, 45, 171, 171, 107, 43, 169, 169, 105, 41,
		167, 167, 103, 39, 165, 165, 101, 37, 163, 163, 99, 35, 161, 161, 97, 33,
		159, 159, 95, 31, 157, 157, 93, 29, 155, 155, 91, 27, 153, 153, 89, 25,
		151, 151, 87, 23, 149, 149, 85, 21, 147, 147, 83, 19, 145, 145, 81, 17,
		143, 143, 79, 15, 141, 141, 77, 13, 139, 139, 75, 11, 137, 137, 73, 9,
		135, 135, 71, 7, 133, 133, 69, 5, 131, 131, 67, 3, 129, 129, 65, 1
	},
	{
		0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
		16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
		32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
		48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
		64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
		80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
		96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
		112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
		128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
		144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
		160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
		176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
		192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
		208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
		224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
		240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
	}
};

#endif

const uint8_t color_unquant_tables[21][256] = {
	{
		0, 255
	},
	{
		0, 128, 255
	},
	{
		0, 85, 170, 255
	},
	{
		0, 64, 128, 192, 255
	},
	{
		0, 255, 51, 204, 102, 153
	},
	{
		0, 36, 73, 109, 146, 182, 219, 255
	},
	{
		0, 255, 28, 227, 56, 199, 84, 171, 113, 142
	},
	{
		0, 255, 69, 186, 23, 232, 92, 163, 46, 209, 116, 139
	},
	{
		0, 17, 34, 51, 68, 85, 102, 119, 136, 153, 170, 187, 204, 221, 238, 255
	},
	{
		0, 255, 67, 188, 13, 242, 80, 175, 27, 228, 94, 161, 40, 215, 107, 148,
		54, 201, 121, 134
	},
	{
		0, 255, 33, 222, 66, 189, 99, 156, 11, 244, 44, 211, 77, 178, 110, 145,
		22, 233, 55, 200, 88, 167, 121, 134
	},
	{
		0, 8, 16, 24, 33, 41, 49, 57, 66, 74, 82, 90, 99, 107, 115, 123,
		132, 140, 148, 156, 165, 173, 181, 189, 198, 206, 214, 222, 231, 239, 247, 255
	},
	{
		0, 255, 32, 223, 65, 190, 97, 158, 6, 249, 39, 216, 71, 184, 104, 151,
		13, 242, 45, 210, 78, 177, 110, 145, 19, 236, 52, 203, 84, 171, 117, 138,
		26, 229, 58, 197, 91, 164, 123, 132
	},
	{
		0, 255, 16, 239, 32, 223, 48, 207, 65, 190, 81, 174, 97, 158, 113, 142,
		5, 250, 21, 234, 38, 217, 54, 201, 70, 185, 86, 169, 103, 152, 119, 136,
		11, 244, 27, 228, 43, 212, 59, 196, 76, 179, 92, 163, 108, 147, 124, 131
	},
	{
		0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60,
		65, 69, 73, 77, 81, 85, 89, 93, 97, 101, 105, 109, 113, 117, 121, 125,
		130, 134, 138, 142, 146, 150, 154, 158, 162, 166, 170, 174, 178, 182, 186, 190,
		195, 199, 203, 207, 211, 215, 219, 223, 227, 231, 235, 239, 243, 247, 251, 255
	},
	{
		0, 255, 16, 239, 32, 223, 48, 207, 64, 191, 80, 175, 96, 159, 112, 143,
		3, 252, 19, 236, 35, 220, 51, 204, 67, 188, 83, 172, 100, 155, 116, 139,
		6, 249, 22, 233, 38, 217, 54, 201, 71, 184, 87, 168, 103, 152, 119, 136,
		9, 246, 25, 230, 42, 213, 58, 197, 74, 181, 90, 165, 106, 149, 122, 133,
		13, 242, 29, 226, 45, 210, 61, 194, 77, 178, 93, 162, 109, 146, 125, 130
	},
	{
		0, 255, 8, 247, 16, 239, 24, 231, 32, 223, 40, 215, 48, 207, 56, 199,
		64, 191, 72, 183, 80, 175, 88, 167, 96, 159, 104, 151, 112, 143, 120, 135,
		2, 253, 10, 245, 18, 237, 26, 229, 35, 220, 43, 212, 51, 204, 59, 196,
		67, 188, 75, 180, 83, 172, 91, 164, 99, 156, 107, 148, 115, 140, 123, 132,
		5, 250, 13, 242, 21, 234, 29, 226, 37, 218, 45, 210, 53, 202, 61, 194,
		70, 185, 78, 177, 86, 169, 94, 161, 102, 153, 110, 145, 118, 137, 126, 129
	},
	{
		0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30,
		32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62,
		64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94,
		96, 98, 100, 102, 104, 106, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126,
		129, 131, 133, 135, 137, 139, 141, 143, 145, 147, 149, 151, 153, 155, 157, 159,
		161, 163, 165, 167, 169, 171, 173, 175, 177, 179, 181, 183, 185, 187, 189, 191,
		193, 195, 197, 199, 201, 203, 205, 207, 209, 211, 213, 215, 217, 219, 221, 223,
		225, 227, 229, 231, 233, 235, 237, 239, 241, 243, 245, 247, 249, 251, 253, 255
	},
	{
		0, 255, 8, 247, 16, 239, 24, 231, 32, 223, 40, 215, 48, 207, 56, 199,
		64, 191, 72, 183, 80, 175, 88, 167, 96, 159, 104, 151, 112, 143, 120, 135,
		1, 254, 9, 246, 17, 238, 25, 230, 33, 222, 41, 214, 49, 206, 57, 198,
		65, 190, 73, 182, 81, 174, 89, 166, 97, 158, 105, 150, 113, 142, 121, 134,
		3, 252, 11, 244, 19, 236, 27, 228, 35, 220, 43, 212, 51, 204, 59, 196,
		67, 188, 75, 180, 83, 172, 91, 164, 99, 156, 107, 148, 115, 140, 123, 132,
		4, 251, 12, 243, 20, 235, 28, 227, 36, 219, 44, 211, 52, 203, 60, 195,
		68, 187, 76, 179, 84, 171, 92, 163, 100, 155, 108, 147, 116, 139, 124, 131,
		6, 249, 14, 241, 22, 233, 30, 225, 38, 217, 46, 209, 54, 201, 62, 193,
		70, 185, 78, 177, 86, 169, 94, 161, 102, 153, 110, 145, 118, 137, 126, 129
	},
	{
		0, 255, 4, 251, 8, 247, 12, 243, 16, 239, 20, 235, 24, 231, 28, 227,
		32, 223, 36, 219, 40, 215, 44, 211, 48, 207, 52, 203, 56, 199, 60, 195,
		64, 191, 68, 187, 72, 183, 76, 179, 80, 175, 84, 171, 88, 167, 92, 163,
		96, 159, 100, 155, 104, 151, 108, 147, 112, 143, 116, 139, 120, 135, 124, 131,
		1, 254, 5, 250, 9, 246, 13, 242, 17, 238, 21, 234, 25, 230, 29, 226,
		33, 222, 37, 218, 41, 214, 45, 210, 49, 206, 53, 202, 57, 198, 61, 194,
		65, 190, 69, 186, 73, 182, 77, 178, 81, 174, 85, 170, 89, 166, 93, 162,
		97, 158, 101, 154, 105, 150, 109, 146, 113, 142, 117, 138, 121, 134, 125, 130,
		2, 253, 6, 249, 10, 245, 14, 241, 18, 237, 22, 233, 26, 229, 30, 225,
		34, 221, 38, 217, 42, 213, 46, 209, 50, 205, 54, 201, 58, 197, 62, 193,
		66, 189, 70, 185, 74, 181, 78, 177, 82, 173, 86, 169, 90, 165, 94, 161,
		98, 157, 102, 153, 106, 149, 110, 145, 114, 141, 118, 137, 122, 133, 126, 129
	},
	{
		0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
		16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
		32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
		48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63,
		64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
		80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95,
		96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111,
		112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127,
		128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143,
		144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
		160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175,
		176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191,
		192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207,
		208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223,
		224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239,
		240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255
	}
};

// The quant_mode_table[integercount/2][bits] gives us the quantization level for a given integer
// count and number of bits that the integer may fit into.
int8_t quant_mode_table[17][128];

/* See header for documentation. */
void init_quant_mode_table()
{
	for (unsigned int i = 0; i <= 16; i++)
	{
		for (unsigned int j = 0; j < 128; j++)
		{
			quant_mode_table[i][j] = -1;
		}
	}

	for (unsigned int i = 0; i < 21; i++)
	{
		for (unsigned int j = 1; j <= 16; j++)
		{
			unsigned int p = get_ise_sequence_bitcount(2 * j, (quant_method)i);
			if (p < 128)
			{
				quant_mode_table[j][p] = i;
			}
		}
	}

	for (int i = 0; i <= 16; i++)
	{
		int largest_value_so_far = -1;
		for (unsigned int j = 0; j < 128; j++)
		{
			if (quant_mode_table[i][j] > largest_value_so_far)
			{
				largest_value_so_far = quant_mode_table[i][j];
			}
			else
			{
				quant_mode_table[i][j] = largest_value_so_far;
			}
		}
	}
}