From: svgalib@Spamann.de
Date: Mon 18 Jun 2001 - 15:25:12 IDT
Hi there,
I would be very thankful for a description on, or an example of the use
of gl_enablepageflipping in vgagl.
As I understand it, one should use gl_enablepageflipping on a
GraphicsContext that points to a buffer in video memory. The only way to
get such a GraphicsContext seems to be a call to gl_setcontextvga(). So,
if I want 2 pages, I would create the first with a call to
setcontextvga(), enable pageflipping on it with gl_enablepageflipping
and afterwards create the second page:
GraphicsContext *page1, page2;
page1 = gl_allocatecontext();
page1 = gl_getcontext();
gl_enablepageflipping(page1);
page2 = gl_allocatecontext();
How do I continue? I cannot fill page2 by a call to gl_getcontext as
that would leave me with page1 and page2 referring to the same context,
i.e. the physical screen. I tried different things but they all amount
to mere guessing ... (yes, gl_enablepageflipping returns 3, so it should
work)
Thanks a lot!
Axel
Axel Spamann
University of Cologne
Axel@Spamann.de
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