SVGALib

SVGAlib was an open-source low-level graphics library which ran on Linux and FreeBSD and allowed programs to change video mode and display full-screen graphics. Some popular games like Quake and Doom have been ported to use SVGAlib.

History

The library was popular in mid-1990s. Toward 2000, many applications that used it migrated to X11 and SDL, which itself can make use of SVGAlib as a video driver.

Sample

A sample of SVGAlib code is shown below:

#include <stdlib.h> #include <unistd.h> #include <vga.h> int main(void) { int color = 4; int x = 10; int y = 10; unsigned int seconds = 5; /* detect the chipset and give up supervisor rights */ if (vga_init < 0) return EXIT_FAILURE; vga_setmode(G320x200x256); vga_setcolor(color); vga_drawpixel(x, y); sleep(seconds); /* restore textmode and fall back to ordinary text console handling */ vga_setmode(TEXT); return EXIT_SUCCESS; } 

See also

• DirectFB
• General Graphics Interface (GGI)
• Linux framebuffer

External links

• SVGAlib
• svgalib windows