On 01/14/2013 09:50 AM, Brian Paul wrote:
On 01/12/2013 05:29 PM, srol...@vmware.com wrote:
From: Roland Scheidegger<srol...@vmware.com>
Cast back the fake floats to ints, and make sure we don't try to do
scaling
in format conversion (which only makes sense with normalized values).
Also need to disable blending and alpha test (as per spec) for such
buffers.
This makes fbo-blending from the piglit ext_texture_integer tests work
for most
formats (some crash, and the luminance and intensity variants have the
GB or
GBA channels respectively wrong).
The code looks OK, but I wonder if it should be the state tracker's
responsibility to disable blending and alpha test when using integer
color buffers?
I was wondering about that as well (in fact it took me a long time to
figure out why the test didn't work as I thought for some reason the
state tracker would already do this) but I think the reason it's not
done is that the blend state is independent of the actual bound
renderbuffers.
Roland
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