virtualx-engine/modules/betsy/betsy_bc1.h

/**************************************************************************/
/*  betsy_bc1.h                                                           */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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/* a copy of this software and associated documentation files (the        */
/* "Software"), to deal in the Software without restriction, including    */
/* without limitation the rights to use, copy, modify, merge, publish,    */
/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
/* the following conditions:                                              */
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/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
/*                                                                        */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
/**************************************************************************/

#ifndef BETSY_BC1_H
#define BETSY_BC1_H

constexpr const float dxt1_encoding_table[1024] = {
	0,
	0,
	0,
	0,
	0,
	1,
	0,
	1,
	1,
	0,
	1,
	0,
	1,
	0,
	1,
	1,
	1,
	1,
	2,
	0,
	2,
	0,
	0,
	4,
	2,
	1,
	2,
	1,
	2,
	1,
	3,
	0,
	3,
	0,
	3,
	0,
	3,
	1,
	1,
	5,
	3,
	2,
	3,
	2,
	4,
	0,
	4,
	0,
	4,
	1,
	4,
	1,
	4,
	2,
	4,
	2,
	4,
	2,
	3,
	5,
	5,
	1,
	5,
	1,
	5,
	2,
	4,
	4,
	5,
	3,
	5,
	3,
	5,
	3,
	6,
	2,
	6,
	2,
	6,
	2,
	6,
	3,
	5,
	5,
	6,
	4,
	6,
	4,
	4,
	8,
	7,
	3,
	7,
	3,
	7,
	3,
	7,
	4,
	7,
	4,
	7,
	4,
	7,
	5,
	5,
	9,
	7,
	6,
	7,
	6,
	8,
	4,
	8,
	4,
	8,
	5,
	8,
	5,
	8,
	6,
	8,
	6,
	8,
	6,
	7,
	9,
	9,
	5,
	9,
	5,
	9,
	6,
	8,
	8,
	9,
	7,
	9,
	7,
	9,
	7,
	10,
	6,
	10,
	6,
	10,
	6,
	10,
	7,
	9,
	9,
	10,
	8,
	10,
	8,
	8,
	12,
	11,
	7,
	11,
	7,
	11,
	7,
	11,
	8,
	11,
	8,
	11,
	8,
	11,
	9,
	9,
	13,
	11,
	10,
	11,
	10,
	12,
	8,
	12,
	8,
	12,
	9,
	12,
	9,
	12,
	10,
	12,
	10,
	12,
	10,
	11,
	13,
	13,
	9,
	13,
	9,
	13,
	10,
	12,
	12,
	13,
	11,
	13,
	11,
	13,
	11,
	14,
	10,
	14,
	10,
	14,
	10,
	14,
	11,
	13,
	13,
	14,
	12,
	14,
	12,
	12,
	16,
	15,
	11,
	15,
	11,
	15,
	11,
	15,
	12,
	15,
	12,
	15,
	12,
	15,
	13,
	13,
	17,
	15,
	14,
	15,
	14,
	16,
	12,
	16,
	12,
	16,
	13,
	16,
	13,
	16,
	14,
	16,
	14,
	16,
	14,
	15,
	17,
	17,
	13,
	17,
	13,
	17,
	14,
	16,
	16,
	17,
	15,
	17,
	15,
	17,
	15,
	18,
	14,
	18,
	14,
	18,
	14,
	18,
	15,
	17,
	17,
	18,
	16,
	18,
	16,
	16,
	20,
	19,
	15,
	19,
	15,
	19,
	15,
	19,
	16,
	19,
	16,
	19,
	16,
	19,
	17,
	17,
	21,
	19,
	18,
	19,
	18,
	20,
	16,
	20,
	16,
	20,
	17,
	20,
	17,
	20,
	18,
	20,
	18,
	20,
	18,
	19,
	21,
	21,
	17,
	21,
	17,
	21,
	18,
	20,
	20,
	21,
	19,
	21,
	19,
	21,
	19,
	22,
	18,
	22,
	18,
	22,
	18,
	22,
	19,
	21,
	21,
	22,
	20,
	22,
	20,
	20,
	24,
	23,
	19,
	23,
	19,
	23,
	19,
	23,
	20,
	23,
	20,
	23,
	20,
	23,
	21,
	21,
	25,
	23,
	22,
	23,
	22,
	24,
	20,
	24,
	20,
	24,
	21,
	24,
	21,
	24,
	22,
	24,
	22,
	24,
	22,
	23,
	25,
	25,
	21,
	25,
	21,
	25,
	22,
	24,
	24,
	25,
	23,
	25,
	23,
	25,
	23,
	26,
	22,
	26,
	22,
	26,
	22,
	26,
	23,
	25,
	25,
	26,
	24,
	26,
	24,
	24,
	28,
	27,
	23,
	27,
	23,
	27,
	23,
	27,
	24,
	27,
	24,
	27,
	24,
	27,
	25,
	25,
	29,
	27,
	26,
	27,
	26,
	28,
	24,
	28,
	24,
	28,
	25,
	28,
	25,
	28,
	26,
	28,
	26,
	28,
	26,
	27,
	29,
	29,
	25,
	29,
	25,
	29,
	26,
	28,
	28,
	29,
	27,
	29,
	27,
	29,
	27,
	30,
	26,
	30,
	26,
	30,
	26,
	30,
	27,
	29,
	29,
	30,
	28,
	30,
	28,
	30,
	28,
	31,
	27,
	31,
	27,
	31,
	27,
	31,
	28,
	31,
	28,
	31,
	28,
	31,
	29,
	31,
	29,
	31,
	30,
	31,
	30,
	31,
	30,
	31,
	31,
	31,
	31,
	0,
	0,
	0,
	1,
	1,
	0,
	1,
	0,
	1,
	1,
	2,
	0,
	2,
	1,
	3,
	0,
	3,
	0,
	3,
	1,
	4,
	0,
	4,
	0,
	4,
	1,
	5,
	0,
	5,
	1,
	6,
	0,
	6,
	0,
	6,
	1,
	7,
	0,
	7,
	0,
	7,
	1,
	8,
	0,
	8,
	1,
	8,
	1,
	8,
	2,
	9,
	1,
	9,
	2,
	9,
	2,
	9,
	3,
	10,
	2,
	10,
	3,
	10,
	3,
	10,
	4,
	11,
	3,
	11,
	4,
	11,
	4,
	11,
	5,
	12,
	4,
	12,
	5,
	12,
	5,
	12,
	6,
	13,
	5,
	13,
	6,
	8,
	16,
	13,
	7,
	14,
	6,
	14,
	7,
	9,
	17,
	14,
	8,
	15,
	7,
	15,
	8,
	11,
	16,
	15,
	9,
	15,
	10,
	16,
	8,
	16,
	9,
	16,
	10,
	15,
	13,
	17,
	9,
	17,
	10,
	17,
	11,
	15,
	16,
	18,
	10,
	18,
	11,
	18,
	12,
	16,
	16,
	19,
	11,
	19,
	12,
	19,
	13,
	17,
	17,
	20,
	12,
	20,
	13,
	20,
	14,
	19,
	16,
	21,
	13,
	21,
	14,
	21,
	15,
	20,
	17,
	22,
	14,
	22,
	15,
	25,
	10,
	22,
	16,
	23,
	15,
	23,
	16,
	26,
	11,
	23,
	17,
	24,
	16,
	24,
	17,
	27,
	12,
	24,
	18,
	25,
	17,
	25,
	18,
	28,
	13,
	25,
	19,
	26,
	18,
	26,
	19,
	29,
	14,
	26,
	20,
	27,
	19,
	27,
	20,
	30,
	15,
	27,
	21,
	28,
	20,
	28,
	21,
	28,
	21,
	28,
	22,
	29,
	21,
	29,
	22,
	24,
	32,
	29,
	23,
	30,
	22,
	30,
	23,
	25,
	33,
	30,
	24,
	31,
	23,
	31,
	24,
	27,
	32,
	31,
	25,
	31,
	26,
	32,
	24,
	32,
	25,
	32,
	26,
	31,
	29,
	33,
	25,
	33,
	26,
	33,
	27,
	31,
	32,
	34,
	26,
	34,
	27,
	34,
	28,
	32,
	32,
	35,
	27,
	35,
	28,
	35,
	29,
	33,
	33,
	36,
	28,
	36,
	29,
	36,
	30,
	35,
	32,
	37,
	29,
	37,
	30,
	37,
	31,
	36,
	33,
	38,
	30,
	38,
	31,
	41,
	26,
	38,
	32,
	39,
	31,
	39,
	32,
	42,
	27,
	39,
	33,
	40,
	32,
	40,
	33,
	43,
	28,
	40,
	34,
	41,
	33,
	41,
	34,
	44,
	29,
	41,
	35,
	42,
	34,
	42,
	35,
	45,
	30,
	42,
	36,
	43,
	35,
	43,
	36,
	46,
	31,
	43,
	37,
	44,
	36,
	44,
	37,
	44,
	37,
	44,
	38,
	45,
	37,
	45,
	38,
	40,
	48,
	45,
	39,
	46,
	38,
	46,
	39,
	41,
	49,
	46,
	40,
	47,
	39,
	47,
	40,
	43,
	48,
	47,
	41,
	47,
	42,
	48,
	40,
	48,
	41,
	48,
	42,
	47,
	45,
	49,
	41,
	49,
	42,
	49,
	43,
	47,
	48,
	50,
	42,
	50,
	43,
	50,
	44,
	48,
	48,
	51,
	43,
	51,
	44,
	51,
	45,
	49,
	49,
	52,
	44,
	52,
	45,
	52,
	46,
	51,
	48,
	53,
	45,
	53,
	46,
	53,
	47,
	52,
	49,
	54,
	46,
	54,
	47,
	57,
	42,
	54,
	48,
	55,
	47,
	55,
	48,
	58,
	43,
	55,
	49,
	56,
	48,
	56,
	49,
	59,
	44,
	56,
	50,
	57,
	49,
	57,
	50,
	60,
	45,
	57,
	51,
	58,
	50,
	58,
	51,
	61,
	46,
	58,
	52,
	59,
	51,
	59,
	52,
	62,
	47,
	59,
	53,
	60,
	52,
	60,
	53,
	60,
	53,
	60,
	54,
	61,
	53,
	61,
	54,
	61,
	54,
	61,
	55,
	62,
	54,
	62,
	55,
	62,
	55,
	62,
	56,
	63,
	55,
	63,
	56,
	63,
	56,
	63,
	57,
	63,
	58,
	63,
	59,
	63,
	59,
	63,
	60,
	63,
	61,
	63,
	62,
	63,
	62,
	63,
	63,
};

#endif // BETSY_BC1_H