https://bugs.freedesktop.org/show_bug.cgi?id=27841
--- Comment #6 from b...@o-hand.com <b...@o-hand.com> 2010-05-27 09:31:05 PDT
---
(In reply to comment #5)
> (In reply to comment #3)
> > What about discarding other aux buffers (stencil, depth etc)?
>
> GL_EXT_discard_framebuffer can already do that:
>
> const GLenum attachments[] = { GL_COLOR_EXT, GL_DEPTH_EXT, GL_STENCIL_EXT };
> glDiscardFramebufferEXT(GL_FRAMEBUFFER, attachments, 3);
>
> It sounds like we want GL_EXT_discard_framebuffer and some other extension
> that
> enables multiple sub-buffer copy behavior.
Something thing that occurred to me the other day is that glXCopySubBuffer
isn't integrated with the concept of a SwapInterval which upsets Clutter quite
a bit when we start taking advantage of it because it allows applications to
break out of the framerate throttling we try to impose on applications.
This suggests that actually having a new extension that lets us copy a region +
end the frame + integrate with the swap interval in one go could be more ideal
for us.
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