48f9f0bfdd
This adds the new glGetTextureSubImage() and glGetCompressedTextureSubImage() functions. Also update the dispatch sanity test program. v2: remove stray brace, move xi:include line in gl_API.xml, fix extension number typo, s/program/texture/ in xml file. Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>