[Mesa-dev] [PATCH 19/23] i965 teximage: don't call _mesa_store_teximage if format/type==GL_NONE

[Eric Anholt]

Jordan Justen <jordan.l.justen at intel.com> writes:

> Mesa core's copyteximage calls the driver with format/type==GL_NONE
> to "Allocate texture memory". In this case, we shouldn't call
> _mesa_store_teximage.

I'm not sure if GL_NONE/GL_NONE really makes sense to test for here.  I
bet the actual problem is that the app's pixel unpack state (like having
a PBO bound, and thus pixels == NULL still meaning to upload data) is
leaking into this path through the use of &ctx->Unpack instead of
ctx->DefaultPacking.
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