On 14.04.2013 13:50, Jose Fonseca wrote: > ----- Original Message ----- > >> Not to mention the sheer insanity, ugliness and emotional pain incurred >> when writing that code when it COULD be so easy and simple in the state >> tracker where you know that textures and samplers are tightly coupled, >> while in gallium I cannot assume that to be the case. > Also, will this still be true when Mesa state tracker implements > GL_ARB_texture_view ?
I dare say yes. GL texture views do NOT decouple textures from samplers, they just decouple gallium sampler views from OpenGL textures. There may be an issue if we wanted (and we don't) to use a single sampler for all the OpenGL texture views of a single texture. However, that ONLY works if the shaders are changed as well, and since the texture/sampler combinations are not predictable, this is a very bad idea as it would mean frequent shader recompilations. As to whether there will ever be an OpenGL extension that adds separation of views and samplers to shaders ... I'm hoping for NV to add some clause to the spec to solve the border colour trouble, like forbidding texture swizzle in such cases (and I'm sure AMD would be inclined to agree). > Jose _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
