[squeak-dev] Re: OpenCL and OpenGL interop

Josh Gargus josh at schwa.ca
Tue Jun 8 05:59:40 UTC 2010

wglGetCurrentContext() does not create a context, it merely answers the context that was most recently made current.  

Take a peek in sqWin32OpenGL.c in the B3DAcceleratorPlugin source code.  It's hiding a lot of tedious stuff; "creating a context" is about a lot more than wrapping a single API call.  The B3D plugin nicely abstracts this away so you can use the same setup code across platforms (and can also use Direct 3D as a backend, although Croquet-OpenGL doesn't use this).


On Jun 7, 2010, at 8:50 PM, askoh wrote:

> I am curious why Croquet uses a primitive to create an opengl context 
> instead of a straight call to wglGetCurrentContext()? 
> Aik-Siong 
> On Mon, 7 Jun 2010 13:28:11 -0700 (PDT), "Josh Gargus [via Smalltalk]"  wrote: 
> Ah, you've got me there (I don't really use WGL directly).  You should 
> be able to do that without any new primitives. 
>   > 
>   > Cheers, 
>   > Josh 
>   > 
> View this message in context: Re: OpenCL and OpenGL interop
> Sent from the Squeak - Dev mailing list archive at Nabble.com.

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