On 10/31/2013 10:21 AM, Marek Olšák wrote: > On Thu, Oct 31, 2013 at 6:19 PM, Ian Romanick <i...@freedesktop.org> wrote: >> On 10/31/2013 08:42 AM, Marek Olšák wrote: >>> From: Marek Olšák <marek.ol...@amd.com> >>> >>> Cc: mesa-sta...@lists.freedesktop.org >> >> This is not correct. GL_COMPRESSED_TEXTURE_FORMATS is only supposed to >> return texture formats "suitable for general-purpose usage." Since >> GL_COMPRESSED_RGBA_S3TC_DXT1_EXT only has 1 bit for alpha, it's not >> suitable for general-purpose usage. As far as I'm aware, nobody else >> returns that format either... and I think we have a piglit test. > > Yes, we have a piglit test which expects 4 formats, not 3.
tests/spec/arb_texture_compression/invalid-formats.c expects that GL_COMPRESSED_RGBA_S3TC_DXT1_EXT is not included in GL_COMPRESSED_TEXTURE_FORMATS. It looks like tests/spec/gl-3.1/minmax.c expects GL_NUM_COMPRESSED_TEXTURE_FORMATS be at least 4, but I have no idea what it's expecting GL_COMPRESSED_TEXTURE_FORMATS will be. There are no general-purpose compression formats part of the spec (only RGTC formats), so... I think that's also a spec bug, and I've submitted a Khronos bug for that too. Ugh. :( > Marek _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
