[PATCH] wined3d/resource: Performance improvement

[Patrick Rudolph]

On 2016-07-03 11:55 AM, Stefan Dösinger wrote:
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> Am 2016-07-03 um 10:04 schrieb Henri Verbeet:
>> Finally, there the possibility that Windows filters invalid flag
>> combinations like Wine currently does, and picking either DISCARD
>> or NOOVERWRITE will break an application that depends on that.
> When I originally added support for dynamic buffers in 2010 or so I
> just forwarded the flags to the driver. That did break some
> applications. I'll try to find out which one it was, I believe I put
> some details in the patch description.
> 
> It's also possible that there are some differences between textures
> and buffers. In d3d <= 9, D3DLOCK_NOOVERWRITE is not supported on
> textures. So it might be filtered out, and DISCARD prevails. But my
> understanding is that Unigine uses the questionable combination on
> buffers, not textures.
> 
It uses both flags on buffers in d3d9 mode.
I'm going to add tests for it.

Regards,
Patrick
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> 
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