1gl_enablepageflipping(3)      Svgalib User Manual     gl_enablepageflipping(3)
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NAME

6       gl_enablepageflipping - enables automatic page flipping
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SYNOPSIS

10       #include <vgagl.h>
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12       int gl_enablepageflipping(GraphicsContext *gc);
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DESCRIPTION

16       Enable  page  flipping  or  triple buffering in gl_copyscreen(3) if the
17       physical context gc can do it.
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19       Returns 3 if triple buffering will be used, 2 for page flipping,  0  if
20       page flipping is not possible (due to video memory/mode limitations).
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22       When  pageflipping  is  enabled,  the  gl_screenoffset(3) is ignored in
23       gl_copyscreen(3).
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25       The idea is that you draw your picture in gc and copy it to the  screen
26       by consecutive gl_copyscreen(3) calls. Each of these will choose a free
27       buffer in the screen and adjust the display start accourdingly.
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29       The current context must by the VGA when gl_copyscreen(3) is called  in
30       this situation.
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SEE ALSO

34       svgalib(7),   vgagl(7),   svgalib.conf(5),   threedkit(7),   testgl(1),
35       plane(1),   wrapdemo(1),    gl_copybox(3),    gl_copyboxfromcontext(3),
36       gl_copyboxtocontext(3),  gl_copyscreen(3),  gl_getbox(3), gl_putbox(3),
37       gl_setcontext(3), gl_setcontextheight(3), gl_setcontextvga(3),  gl_set‐
38       contextvgavirtual(3), gl_setcontextvirtual(3), gl_setcontextwidth(3).
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AUTHOR

42       This  manual  page  was  edited by Michael Weller <eowmob@exp-math.uni-
43       essen.de>. The exact source of the referenced demo as well  as  of  the
44       original documentation is unknown.
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46       It is very likely that both are at least to some extent are due to Harm
47       Hanemaayer <H.Hanemaayer@inter.nl.net>.
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49       Occasionally this might be wrong. I hereby asked to be excused  by  the
50       original author and will happily accept any additions or corrections to
51       this first version of the svgalib manual.
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55Svgalib (>= 1.2.11)               2 Aug 1997          gl_enablepageflipping(3)