Computer Science
gl_putboxmask(3) Svgalib User Manual gl_putboxmask(3)
NAME
gl_putboxmask - copy a masked pixmap to a rectangular
area
SYNOPSIS
#include <vgagl.h>
void gl_putboxmask(int x, int y, int w, int h, void *dp);
DESCRIPTION
Copy the contents of a memory buffer dp to a rectangular
bitmap at position (x, y) with size (w, h).
This function works like gl_putbox, but does not write
pixmap pixels of color zero. If the same pixmap is used
often you should consider using the faster gl_putbox-
maskcompiled(3).
Pixmaps are in row-major order. The source pixmap memory
has the size w * h * BYTESPERPIXEL.
SEE ALSO
svgalib(7), vgagl(7), svgalib(5), threedkit(7),
testgl(1), gl_compileboxmask(3), gl_compiledboxmask-
size(3), gl_copybox(3), gl_copyboxfromcontext(3), gl_copy-
boxtocontext(3), gl_fillbox(3), gl_getbox(3), gl_put-
box(3), gl_putboxmaskcompiled(3), gl_putboxpart(3),
gl_scalebox(3).
AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-
math.uni-essen.de>. The exact source of the referenced
demo as well as of the original documentation is unknown.
It is very likely that both are at least to some extent
are due to Harm Hanemaayer <H.Hanemaayer@inter.nl.net>.
Occasionally this might be wrong. I hereby asked to be
excused by the original author and will happily accept any
additions or corrections to this first version of the
svgalib manual.
Svgalib (>= 1.2.11) 2 Aug 1997 1
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