1062 lines
7.1 KiB
C++
1062 lines
7.1 KiB
C++
/**************************************************************************/
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/* betsy_bc1.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef BETSY_BC1_H
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#define BETSY_BC1_H
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constexpr const float dxt1_encoding_table[1024] = {
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0,
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0,
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0,
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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,
|
|
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|
|
21,
|
|
18,
|
|
20,
|
|
20,
|
|
21,
|
|
19,
|
|
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|
|
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|
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|
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19,
|
|
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|
|
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|
|
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|
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|
|
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|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
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|
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|
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|
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|
|
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|
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|
|
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|
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|
|
23,
|
|
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|
|
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|
|
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|
|
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|
|
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|
|
23,
|
|
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|
|
24,
|
|
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|
|
24,
|
|
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|
|
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|
|
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|
|
24,
|
|
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|
|
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|
|
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|
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|
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|
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|
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|
|
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|
|
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|
|
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|
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|
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|
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|
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|
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|
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|
|
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|
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|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
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|
|
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|
|
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|
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|
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|
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|
|
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|
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|
|
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|
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|
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|
|
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|
|
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|
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|
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|
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|
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|
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|
|
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|
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|
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|
|
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|
|
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|
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|
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|
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|
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|
|
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|
|
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|
|
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|
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|
|
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|
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|
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|
|
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|
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|
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|
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|
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|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
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|
|
32,
|
|
31,
|
|
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|
|
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
|