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Add support for BC4

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This commit is contained in:
ppiastucki 2017-04-26 22:32:37 +02:00
parent c7110588a4
commit 8a55e1e5a5
1 changed files with 6 additions and 0 deletions
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6
stb_dxt.h
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@ -36,6 +36,7 @@ extern "C" {
#endif
void stb_compress_dxt_block(unsigned char *dest, const unsigned char *src_rgba_four_bytes_per_pixel, int alpha, int mode);
void stb_compress_bc4_block(unsigned char *dest, const unsigned char *src_r_one_byte_per_pixel);
void stb_compress_bc5_block(unsigned char *dest, const unsigned char *src_rg_two_byte_per_pixel);
#ifdef __cplusplus
@ -636,6 +637,11 @@ void stb_compress_dxt_block(unsigned char *dest, const unsigned char *src, int a
stb__CompressColorBlock(dest,(unsigned char*) src,mode);
}
void stb_compress_bc4_block(unsigned char *dest, const unsigned char *src)
{
stb__CompressAlphaBlock(dest,(unsigned char*) src, 1);
}
void stb_compress_bc5_block(unsigned char *dest, const unsigned char *src)
{
stb__CompressAlphaBlock(dest,(unsigned char*) src,2);