[Mesa-dev] [PATCH] i965: Disallow fast blit paths for CopyTexImage with PixelTransfer ops

Chris Wilson chris at chris-wilson.co.uk
Wed Sep 9 09:44:39 PDT 2015


On Tue, Sep 08, 2015 at 01:16:11PM -0700, Ian Romanick wrote:
> On 09/06/2015 09:37 AM, Chris Wilson wrote:
> > glCopyTexImage behaves similarly to glReadPixels with respect to the
> > pixel transfer operations. Therefore if any are set we cannot use the
> > simply blit fast paths.
> 
> Do we have any test cases that hit these paths?  If not, we should
> probably con someone into writing some...

It looks like piglit should have coverage of PixelZoom in
tests/fbo/fbo-copypix.c, but only it ever uses a zoom of (1, 1). I could
not spot any of the other transfer operations being set for
glCopyTex*Image.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre


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