R600g & RadeonSI Now Support BPTC Texture Compression
Written by Michael Larabel in Mesa on 15 August 2014 at 12:08 AM EDT. Add A Comment
Earlier this week Intel pushed their BPTC texture compression support into mainline Mesa and now following in those foot steps are the R600g and RadeonSI driver enablement.

Patches have been outstanding on the mailing list for a while but as of Thursday the support landed for these two modern Radeon Gallium3D drivers to take advantage of BPTC texture compression. The GL_ARB_texture_compress_bptc extension is required by the OpenGL 4.2 specification. This support for the open-source Linux drivers will be part of the upcoming Mesa 10.3 release.

For the R600g driver a Evergreen/Cayman (Radeon HD 5000 series and newer) is required for this GL 4.2 extension per this commit while obviously all current GCN GPUs supported by RadeonSI are supported for this texture compression method.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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