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vga_copytoplane(3)	      Svgalib User Manual	    vga_copytoplane(3)

NAME
       vga_copytoplane	-  copy	 linear	 pixmap to some planes of VGA 16 color
       mode video memory

SYNOPSIS
       #include <vga.h>

       void vga_copytoplane(unsigned char *virtual, int	 pitch,	 int  voffset,
       int vpitch, int w, int h, int plane);

DESCRIPTION
       Similar	to vga_copytoplanar16(3), but copies only a subset of the four
       16-color mode planes (plane should be in the range 0 .. 15).  The  bits
       set in plane select which of the four 16-color mode planes to modify.

       Assumes	pixels stored in consecutive bytes ranging from 0 to 15 in the
       virtual screen.

       Copies part of a linear virtual screen in system memory at *virtual  to
       VGA  16	mode  video memory.  pitch is the logical width of the virtual
       screen (in pixels (which are one byte large)), voffset is  the  address
       offset  into  video memory, vpitch is the logical scanline width of the
       screen.	(w, h) is the size of the area to copy in pixels  (width  must
       be multiple of 4).

SEE ALSO
       svgalib(7),  vgagl(7),  libvga.config(5),  vga_accel(3), vga_copytopla‐
       nar16(3), vga_copytoplanar256(3), vga_drawscanline(3), vga_drawscanseg‐
       ment(3),	 vga_getmodeinfo(3),  vga_setlogicalwidth(3), vga_imageblt(3),
       vga_setmodeX(3),

AUTHOR
       This manual page was edited  by	Michael	 Weller	 <eowmob@exp-math.uni-
       essen.de>.  The	exact  source of the referenced function 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)		 27 July 1997		    vga_copytoplane(3)
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