[Mesa-stable] [Mesa-dev] [PATCH] mesa: do depth/stencil format conversion in glGetTexImage

[Eric Anholt]

Brian Paul <brianp at vmware.com> writes:

> glGetTexImage(GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8) was just
> using memcpy() instead of _mesa_unpack_uint_24_8_depth_stencil_row()
> to convert texels from the hardware format to the GL format.
>
> Fixes issue reported by David Meng at Intel.  The new piglit
> ext_packed_depth_stencil-getteximage test checks for this bug.
>
> Also, add some format/type assertions.  We don't yet handle the
> GL_FLOAT_32_UNSIGNED_INT_24_8_REV type.  That should be fixed in
> a follow-on patch.

Reviewed-by: Eric Anholt <eric at anholt.net>
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