gl_line3
Draw a line
Usage
#include <vgagl.h>
void gl_line(int x1, int y1, int x2, int y2, int c);
Overview
Draw a line from point (x1, y1) to (x2, y2) inclusively in color c.
You should not assume that the same drawing trajectory is used when you exchange start and end points.
To use this program one first sets up a mode with a regular vga_setmode call and vga_setpage(0), with possibly a vga_setlinearaddressing call. Then a call to gl_setcontextvga(mode) is made. This makes the information about the mode available to gl_line.
The pixels are placed directly into video memory using inline coded commands.
Releases
Unchanged in 5 releases since Debian 3.1 (Sarge).