[Bug 89314] [HSW, regression, bisected] i965/pixel_read: Use meta_pbo_GetTexSubImage for PBO ReadPixels (ef0499af255ecd)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89314

--- Comment #17 from Matt Turner <mattst88 at gmail.com> ---
(In reply to Gavin Hindman from comment #15)
> Though shouldn't we just be fixing:"The weird part is that we round
> differently depending on whether the application uses a PBO or not." Or is
> that variance in HW rather than SW?

Right, my understanding is that we're using the GPU hardware to do the
conversions in the PBO case and that the conversion the hardware does is
rounding in a slightly strange (but apparently okay by the spec) way.

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