Phoronix: Mesa Now Supports S3TC Texture Compression With sRGB Color Components

Since the notorious S3TC patent expired at the end of 2017, this common texture compression implementation for OpenGL has been supported by mainline Mesa. It's now been extended to also support sRGB non-linear color components...

http://www.phoronix.com/scan.php?pag...C-sRGB-Support