Re: [PATCH 3/5] wined3d: Temporarily remove surface PBO support.

[Henri Verbeet]

On 25 November 2013 19:23, Stefan Dösinger  wrote:
> You know the AMD GPU and r600g driver pretty well. Is there anything
> in the hw or driver that suggests that the usage really matters and/or
> that using a PBO for PACK_BUFFER and UNPACK_BUFFER causes problems?

The Mesa Gallium drivers just care about the STATIC/DYNAMIC/DRAW part
of the usage hint, and not so much about READ/DRAW/COPY. I can't say
if that will necessarily always stay that way though. I know the
proprietary NVIDIA driver does at least complain through
ARB_debug_output if the detected usage doesn't match the usage hint.