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Man Pages


Manual Reference Pages  -  VGA_COPYTOPLANE (3)

NAME

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

CONTENTS

Synopsis
Description
See Also
Author

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_copytoplanar16(3), vga_copytoplanar256(3), vga_drawscanline(3), vga_drawscansegment(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.

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Svgalib (>= 1.2.11) VGA_COPYTOPLANE (3) 27 July 1997

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