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Thread: Compressed Textures, Tiling Merged For RadeonSI

  1. #11
    Join Date
    Mar 2013


    Quote Originally Posted by ChrisXY View Post
    glxinfo shows GL_ARB_texture_compression but not GL_S3_s3tc nor GL_EXT_texture_compression_s3tc.

    Probably because
    bool enable_s3tc = rscreen->info.drm_minor >= 31;
    (Not sure how I can see my driver's version.)
    I think this refers to KMS_DRIVER_MINOR in the kernel drivers/gpu/drm/radeon/radeon_drv.c.
    The original patch "drm/radeon: add si tile mode array query" increased it to 31.
    So it looks like it will not be supported before 3.10.

    (In the actual merging to agd5f/drm-next-3.10 KMS_DRIVER_MINOR was increased to 33, so I guess the detection will be slightly wrong)

  2. #12
    Join Date
    Jun 2010
    ฿ 16LDJ6Hrd1oN3nCoFL7BypHSEYL84ca1JR


    Thanks, that sounds right.

    But it does seem to work with 3.9 when I simply set it to true. xonotic would complain that texture compression is not supported without it, but with it it doesn't complain and renders completely fine. Does it not work in every case?

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