Decode textures using TextureUtils
Shut compiler up about missing return value (unsure)
Revert "Shut compiler up about missing return value (unsure)"
This reverts commit db43ba448776e6c0d6c90909b4037b6f698a545c.
Change some functions in rsx::gl::texture to static.
Replace large switch block in gl::textures::mandates_expansion with simple if tests