On 17 Jan 2010, at 19:59, vade wrote:
> Very quickly. Are you locking your contexts before rendering to them? Both qc
> gl context and cgbitmaps? Webkit uses gl/core animation to render things, so
> you may be drawing to or from the " wrong context" sobriety speak. Try
> throwing some cgllockcontexts() around? No idea if that's it though!
Thanks for the advice... I tried locking, and also copying then restoring
GL_ALL_ATTRIB_BITS too, but that's not changed the behaviour... also saving and
restoring the graphics state (via both NSGraphicsContext and
CGContextSaveGState) but I'm not seeing any change :-(
[NSGraphicsContext saveGraphicsState];
CGLContextObj tmp;
CGLCopyContext(cgl_ctx, tmp, GL_ALL_ATTRIB_BITS);
// Perform WebKit heavy stuff...
CGLCopyContext(tmp, cgl_ctx, GL_ALL_ATTRIB_BITS);
[NSGraphicsContext restoreGraphicsState];
Is there any specific technique for locking CGContextRef?
A.
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