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Fix FormatIsDXT() check

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there are lots of values between
GL_COMPRESSED_RGBA_S3TC_DXT5_EXT (0x83F3) and
GL_COMPRESSED_RGBA_BPTC_UNORM (0x8E8C). We don't support them as valid
compressed formats.

(strictly speaking BPTC is not DXT so the function name doesn't fit 100%
 anymore, but DXT1-5 is now BC1-3 and BPTC is BC7 so.. close enough.)
This commit is contained in:
Daniel Gibson 2025-03-06 06:37:09 +01:00
parent 8fd317ab4c
commit 06d919b410
1 changed files with 3 additions and 2 deletions

5
neo/renderer/Image_load.cpp
View file

@ -37,8 +37,9 @@ PROBLEM: compressed textures may break the zero clamp rule!
*/
static bool FormatIsDXT( int internalFormat ) {
if ( internalFormat < GL_COMPRESSED_RGB_S3TC_DXT1_EXT
|| internalFormat > GL_COMPRESSED_RGBA_BPTC_UNORM ) {
if ( (internalFormat < GL_COMPRESSED_RGB_S3TC_DXT1_EXT
|| internalFormat > GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
&& internalFormat != GL_COMPRESSED_RGBA_BPTC_UNORM ) {
return false;
}
return true;