[Mesa-dev] [PATCH 0/5 v3] Enable GL_ARB_internalformat_query

[Ian Romanick]

I made fairly substantive changes to patch 4, so I wanted to resend the
series.  Based on discussions in the ARB, we decided that the
NUM_SAMPLE_COUNTS query in this extension should behave the same way as
in the GL_ARB_internalformat_query2 extension.  The change is that 0 can
be returned if the format is not renderable.

This gives us a way forward for SNORM (and other) formats: drivers that
can render to them return at least 1, and drivers that cannot render to
them return 0.

I will post updates to the piglit tests on Monday or Tuesday.