Ilia Mirkin <[email protected]> writes: > Is there a way to read back the image once it's compressed that > ensures that software would be used to unpack it? If so, just compare > that using the texture in a shader == reading it back post > compression.
I don't think there is a way to do that for the normalized formats because glGetTexImage is actually implemented using a render via the Mesa meta code so it's effectively always decompressed using a render. For the half-float modes it would work to use glGetTexImage to invoke the software decompressor because for some reason the meta code disables itself for non-normalized formats. However it's probably not very good to rely on this because we should really fix the meta code path to work for non-normalized formats too. - Neil _______________________________________________ Piglit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/piglit
