[Mesa-dev] [PATCH] Add GPU BLIT of texture image to PBO in Intel driver

Matt Turner mattst88 at gmail.com
Mon Feb 24 14:55:19 PST 2014


On Mon, Feb 24, 2014 at 2:04 PM, Jon Ashburn <jon at lunarg.com> wrote:
> Add Intel driver hook for glGetTexImage to accelerate the case of reading
> texture image into a PBO.  This case gets huge performance gains by using
> GPU BLIT directly to PBO rather than GPU BLIT to temporary texture followed
> by memcpy.
>
> No regressions on Piglit tests  with Intel driver.

Patch summary should be prefixed with "i965:" and the commit message
should contain some performance data.


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