src/demos/glinfo.c

   1
   2 /*
   3  * Print GL, GLU and GLUT version and extension info
   4  *
   5  * Brian Paul  This file in public domain.
   6  * October 3, 1997
   7  */
   8
   9
  10 #include <stdio.h>
  11 #include "glut_wrap.h"
  12
  13
  14 int main( int argc, char *argv[] )
  15 {
  16    glutInit( &argc, argv );
  17    glutInitDisplayMode( GLUT_RGB );
  18    glutCreateWindow(argv[0]);
  19
  20    printf("GL_VERSION: %s\n", (char *) glGetString(GL_VERSION));
  21    printf("GL_RENDERER: %s\n", (char *) glGetString(GL_RENDERER));
  22    printf("GL_VENDOR: %s\n", (char *) glGetString(GL_VENDOR));
  23    printf("GL_EXTENSIONS: %s\n", (char *) glGetString(GL_EXTENSIONS));
  24
  25 #ifdef GL_VERSION_2_0
  26    {
  27       const GLubyte *v = glGetString(GL_VERSION);
  28       if (v[0] * 10 + v[2] >= 20) {
  29          const GLubyte *slv = glGetString(GL_SHADING_LANGUAGE_VERSION);
  30          printf("GL_SHADING_LANGUAGE_VERSION = %s\n", slv);
  31       }
  32    }
  33 #endif
  34
  35    printf("GLU_VERSION: %s\n", (char *) gluGetString(GLU_VERSION));
  36    printf("GLU_EXTENSIONS: %s\n", (char *) gluGetString(GLU_EXTENSIONS));
  37    printf("GLUT_API_VERSION: %d\n", GLUT_API_VERSION);
  38 #ifdef GLUT_XLIB_IMPLEMENTATION
  39    printf("GLUT_XLIB_IMPLEMENTATION: %d\n", GLUT_XLIB_IMPLEMENTATION);
  40 #endif
  41
  42    return 0;
  43 }