Slow emulation of StretchBlt

Andrea mariofutire at
Tue Apr 18 13:41:24 CDT 2017

On 18/04/17 06:05, Roderick Colenbrander wrote:
> Depending on source, destination format and some other things it may
> get accelerated e.g. by winex11.drv to xrender. Assuming xrender is
> picked, it could be that your drivers are not accelerating this
> situation.

Is there a way to check this?
It is accelerated by Windows inside VBox on the same hardware.

I have a Haswell i5, and running mesa 13.0.4

> On Mon, Apr 17, 2017 at 8:29 AM, andrea <mariofutire at> wrote:
>> Hi,
>> I am looking at the performance of AppleWin (a 32 bit app) in Wine and have
>> come across this function StretchBlt which seems to be much slower in Wine
>> that in Windows 10.

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