opengl: wglMakeCurrent should call glflush before proceeding

[Jérôme Gardou]

Chris Robinson a écrit :
> On Saturday 21 February 2009 2:00:26 pm Jérôme Gardou wrote:
>   
>> according to
>> http://msdn.microsoft.com/en-us/library/dd374387(VS.85).aspx,
>> wglMakeCurrent proceeds a flush before switching.
>>     
> glXMakeCurrent also forces a flush:
> http://www.opengl.org/documentation/specs/man_pages/hardcopy/GL/html/glx/xmakecurrent.html
>
> If it needs a wglFlush, it should call X11DRV_wglFlush (and only if there's a 
> current context; you can't call gl* functions without one set). It can be an 
> exceptionally costly call though, especially if it's going to be flushed again 
> immediately after, so unless it's needed to fix some bug, I'd recommend not 
> flushing explicitly.
>
>
>   
Good catch. I read this page before sending, searching for this piece of 
information, but for some reason I did not see it... It seems that I 
needed some sleep yesterday.
Thanks.