progs/xdemos/vtest.c

   1
   2 /*
   3  * Test SVGA/Mesa interface in 32K color mode.
   4  *
   5  * Compile with:  gcc vtest.c -I../include -L../lib -lMesaGL -lX11 -lXext
   6  *   -lvga -lm -o vtest
   7  *
   8  * This program is in the public domain.
   9  * Brian Paul, January 1996
  10  */
  11
  12
  13
  14 #include <vga.h>
  15 #include "GL/svgamesa.h"
  16 #include "GL/gl.h"
  17
  18
  19 SVGAMesaContext vmc;
  20
  21
  22
  23 void setup( void )
  24 {
  25    vga_init();
  26
  27    vga_setmode(G800x600x32K);
  28 /*   gl_setcontextvga(G800x600x32K);*/
  29
  30    vmc = SVGAMesaCreateContext( GL_FALSE );  /* single buffered */
  31    SVGAMesaMakeCurrent( vmc );
  32 }
  33
  34
  35 void test( void )
  36 {
  37    glMatrixMode(GL_PROJECTION);
  38    glLoadIdentity();
  39    glOrtho( -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 );
  40    glMatrixMode(GL_MODELVIEW);
  41
  42    glClear( GL_COLOR_BUFFER_BIT );
  43
  44    glBegin( GL_LINES );
  45    glColor3f( 1.0, 0.0, 0.0 );
  46    glVertex2f( -0.5, 0.5 );
  47    glVertex2f(  0.5, 0.5 );
  48    glColor3f( 0.0, 1.0, 0.0 );
  49    glVertex2f( -0.5, 0.25 );
  50    glVertex2f(  0.5, 0.25 );
  51    glColor3f( 0.0, 0.0, 1.0 );
  52    glVertex2f( -0.5, 0.0 );
  53    glVertex2f(  0.5, 0.0 );
  54    glEnd();
  55
  56    glBegin( GL_POLYGON );
  57    glColor3f( 1.0, 0.0, 0.0 );
  58    glVertex2f( 0.0, 0.7 );
  59    glColor3f( 0.0, 1.0, 0.0 );
  60    glVertex2f( -0.5, -0.5 );
  61    glColor3f( 0.0, 0.0, 1.0 );
  62    glVertex2f(  0.5, -0.5 );
  63    glEnd();
  64
  65    sleep(3);
  66 }
  67
  68 void end( void )
  69 {
  70    SVGAMesaDestroyContext( vmc );
  71
  72    vga_setmode( TEXT );
  73 }
  74
  75
  76 int main( int argc, char *argv[] )
  77 {
  78    setup();
  79    test();
  80    end();
  81    return 0;
  82 }