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