37 lines
1 KiB
C
37 lines
1 KiB
C
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// SPDX-FileCopyrightText: fabian "ryg" giesen
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// SPDX-License-Identifier: MIT
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// stb_dxt.h - v1.12 - DXT1/DXT5 compressor
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#ifndef STB_INCLUDE_STB_DXT_H
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#define STB_INCLUDE_STB_DXT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef STB_DXT_STATIC
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#define STBDDEF static
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#else
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#define STBDDEF extern
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#endif
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// compression mode (bitflags)
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#define STB_DXT_NORMAL 0
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#define STB_DXT_DITHER 1 // use dithering. was always dubious, now deprecated. does nothing!
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#define STB_DXT_HIGHQUAL \
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2 // high quality mode, does two refinement steps instead of 1. ~30-40% slower.
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STBDDEF void stb_compress_bc1_block(unsigned char* dest,
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const unsigned char* src_rgba_four_bytes_per_pixel, int alpha,
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int mode);
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STBDDEF void stb_compress_bc3_block(unsigned char* dest, const unsigned char* src, int mode);
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#define STB_COMPRESS_DXT_BLOCK
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#ifdef __cplusplus
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}
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#endif
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#endif // STB_INCLUDE_STB_DXT_H
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