Speed of gdi vs opengl DirectDrawRenderer

[Ken Thomases]

On Feb 20, 2015, at 5:49 PM, Ken Thomases <ken at codeweavers.com> wrote:

> On Feb 20, 2015, at 4:16 PM, Jonas Maebe <jonas.maebe at elis.ugent.be> wrote:
> 
>> On 19/02/15 21:45, Ken Thomases wrote:
>> [snip]
>>> Basically, GDI32 and USER32 can overdrive the drawing loop without having to wait for the GPU or the refresh cycle.
>> 
>> Great, thanks for the explanation! That's indeed exactly what this game
>> seems to need. It generates and tries to display a new screen per game
>> step, but there's no need to display them all.
> 
> If that's the case, then maybe there are unnecessary calls to glFlush() or even glFinish() that can/should be skipped.

There is one more thing you could try along these lines, but it's a long shot.  Try setting:

[HKEY_CURRENT_USER\Software\Wine\Mac Driver]
"SkipSingleBufferFlushes"="y"

-Ken