Re: opengl: Sync a dibsection to its pixmap before drawing to it via opengl

[Lionel Ulmer]

On Fri, Jan 27, 2006 at 03:48:00PM +0000, Huw D M Davies wrote:
>     Huw Davies <[e-mail]>
>     opengl: Sync a dibsection to its pixmap before drawing to it via opengl

Was some benchmarks done to see if this change negatively impacted the
performance of applications doing only 'in-window' drawings (e.g. games) and
not 'in-dib' drawings ?

Lionel (in catch-up mode after coming back from vacation so sorry if
             this point was already raised later in the week :-) )

opengl: Sync a dibsection to its pixmap before drawing to it via opengl

[Huw D M Davies]

On Sun, Jan 29, 2006 at 07:45:39PM +0100, Lionel Ulmer wrote:
> On Fri, Jan 27, 2006 at 03:48:00PM +0000, Huw D M Davies wrote:
> >     Huw Davies <[e-mail]>
> >     opengl: Sync a dibsection to its pixmap before drawing to it via opengl
>
> Was some benchmarks done to see if this change negatively impacted the
> performance of applications doing only 'in-window' drawings (e.g. games) and
> not 'in-dib' drawings ?

In a word, 'no'.  However it shouldn't be too bad, the 'in-window' path
calls glXGetCurrentContext, get_context_from_GLXContext and
GetObjectType.  The first and last of these should be quick, as should
the second unless there are loads of contexts floating about.

Huw.