/* * Test Linux 8-bit SVGA/Mesa color index mode * * Compile with: gcc vindex.c -I../include -L../lib -lMesaGL -lX11 -lXext * -lvga -lm -o vindex * * This program is in the public domain. * Brian Paul, January 1996 */ #include <vga.h> #include "GL/svgamesa.h" #include "GL/gl.h" static GLint width = 640, height = 480; static void display( void ) { int i, j; int w, h; glViewport( 0, 0, width, height ); glMatrixMode( GL_PROJECTION ); glLoadIdentity(); glOrtho( 0.0, (GLfloat) width, 0.0, (GLfloat) height, -1.0, 1.0 ); glClear( GL_COLOR_BUFFER_BIT ); w = width / 16; h = height / 16; for (i=0;i<16;i++) { for (j=0;j<16;j++) { glIndexi( i*16+j ); glRecti( i*w, j*h, i*w+w, j*h+h ); } } } int main( int argc, char *argv[] ) { SVGAMesaContext vmc; int i; vga_init(); vga_setmode( G640x480x256 ); vmc = SVGAMesaCreateContext( GL_FALSE ); SVGAMesaMakeCurrent( vmc ); display(); sleep(3); SVGAMesaDestroyContext( vmc ); vga_setmode( TEXT ); return 0; }