Re: [2/2] WGL: Sync pixmap after glFlush/glFinish, not before every GL call

[Alexandre Julliard]

Chris Robinson  writes:
> From 95214f29672566796564db30ab7f61a2462e4e50 Mon Sep 17 00:00:00 2001
> From: Chris Robinson 
> Date: Wed, 12 Sep 2007 06:42:05 -0700
> Subject: [PATCH] WGL: Sync pixmap after glFlush/glFinish, not before every GL call

The goal is to sync the pixmap before we start drawing to it, so doing
it at glFlush time is too late.

[2/2] WGL: Sync pixmap after glFlush/glFinish, not before every GL call

[Chris Robinson]

On Thursday 13 September 2007 04:40:03 am Alexandre Julliard wrote:
> Chris Robinson  writes:
> > From 95214f29672566796564db30ab7f61a2462e4e50 Mon Sep 17 00:00:00 2001
> > From: Chris Robinson 
> > Date: Wed, 12 Sep 2007 06:42:05 -0700
> > Subject: [PATCH] WGL: Sync pixmap after glFlush/glFinish, not before
> > every GL call
>
> The goal is to sync the pixmap before we start drawing to it, so doing
> it at glFlush time is too late.

Is the pixmap updated with the DIB memory, or is the DIB memory updated with 
the pixmap? In the latter case, it should be fine.

Also, I'm not even sure a DIB can have a proper GL context, given that GL 
rendering by nature is device-dependant (possibly forgoing generic/software 
rendering, which we don't export). Is there anything which shows this is 
possible, or should I try to make some tests?

[2/2] WGL: Sync pixmap after glFlush/glFinish, not before every GL call

[Alexandre Julliard]

Chris Robinson  writes:
> Is the pixmap updated with the DIB memory, or is the DIB memory updated with 
> the pixmap? In the latter case, it should be fine.

It's supposed to work both ways.
> Also, I'm not even sure a DIB can have a proper GL context, given that GL 
> rendering by nature is device-dependant (possibly forgoing generic/software 
> rendering, which we don't export). Is there anything which shows this is 
> possible, or should I try to make some tests?

Tests would definitely be a good idea.