int main(int argc, const char *argv[])
{
glutInitDisplayString("rgba>=8 depth double");
glutInitWindowSize(500, 500);
glutInit( &argc, (char **) argv);
glutCreateWindow("dreamtorus");
// Regal workaround for OSX GLUT
#ifdef __APPLE__
RegalMakeCurrent(CGLGetCurrentContext());
#endif
RegalSetErrorCallback(myError);
// Exercise REGAL_extension_query extension
if (glIsSupportedREGAL("GL_REGAL_extension_query"))
{
printf("GL_REGAL_extension_query is supported.\n");
if (glIsSupportedREGAL("GL_EXT_debug_marker"))
printf("GL_EXT_debug_marker is supported.\n");
else
printf("GL_EXT_debug_marker is not supported.\n");
if (glIsSupportedREGAL("GL_EXT_framebuffer_object"))
printf("GL_EXT_framebuffer_object is supported.\n");
else
printf("GL_EXT_framebuffer_object is not supported.\n");
if (glIsSupportedREGAL("GL_EXT_direct_state_access"))
printf("GL_EXT_direct_state_access is supported.\n");
else
printf("GL_EXT_direct_state_access is not supported.\n");
if (glIsSupportedREGAL("GL_NV_path_rendering"))
printf("GL_NV_path_rendering is supported.\n");
else
printf("GL_NV_path_rendering is not supported.\n");
}
glutTimerFunc(16, myTick, 0);
glutDisplayFunc(myDisplay);
glutReshapeFunc(reshape);
glutKeyboardFunc(myKeyboard);
glutMainLoop();
return 0;
}
void dreamTorusDisplay( bool clear )
{
static float r = 0.0f;
static int count = 0;
if( count == 0 ) {
init();
}
glPushGroupMarkerEXT(0, "display");
#if 1
if( count == 0 ) {
RegalSetErrorCallback( regalerr );
} else if( count == 11 ) {
RegalSetErrorCallback( NULL );
}
count++;
#endif
glUseProgram( 0 );
if( clear ) {
glClearDepth( 1.0 );
glClearColor( r / 400.f, 0, 0, 0);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
}
glEnable( GL_DEPTH_TEST );
for( int i = 0; i < 8; i++ ) {
glActiveTexture( GL_TEXTURE0 + i );
glDisable( GL_TEXTURE_2D );
}
glBindMultiTextureEXT( texunit, GL_TEXTURE_2D, tex );
glActiveTexture( texunit );
glEnable( GL_TEXTURE_2D );
float sc = 2.0f * fabs( ( count % 800 ) / 400.0f - 1.0f ) + 1.0f;
glMatrixLoadIdentityEXT( texunit );
glMatrixScalefEXT( texunit, sc, 1, 1 );
float osc = sc * 0.5f;
glEnable( GL_FOG );
if( ( count % 7 ) == 0 || ( count % 17 ) == 0 ) {
glDisable( GL_NORMALIZE );
glEnable( GL_RESCALE_NORMAL );
glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
glMatrixMode( GL_MODELVIEW );
glPushMatrix();
glRotatef( (float) count, -1.0f, 1.0f, 0.0f );
glScalef( osc, osc, osc );
drawAnObject();
glPopMatrix();
} else {
glEnable( GL_NORMALIZE );
glDisable( GL_RESCALE_NORMAL );
glMultiTexEnviEXT( texunit, GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
glMatrixPushEXT( GL_MODELVIEW );
glMatrixRotatefEXT( GL_MODELVIEW, (float) count, -1.0f, 1.0f, 0.0f );
glMatrixScalefEXT( GL_MODELVIEW, osc, osc, osc );
drawAnObject();
glMatrixPopEXT( GL_MODELVIEW );
}
r += 1.0f;
if( r > 399 ) {
r = 0.0f;
}
glPopGroupMarkerEXT();
//printf( "Draw with r=%f\n", r );
}
int main(int argc, const char *argv[])
{
glutInitDisplayString("rgba>=8 depth double");
glutInitWindowSize(500, 500);
glutInit( &argc, (char **) argv);
glutCreateWindow("dreamtorus");
glLogMessageCallbackREGAL(myOutput);
// Regal workaround for OSX GLUT
#ifdef __APPLE__
RegalMakeCurrent(CGLGetCurrentContext());
#endif
// Regal workaround for Emscripten GLUT emulation
#ifdef EMSCRIPTEN
RegalMakeCurrent((RegalSystemContext)1);
#endif
RegalSetErrorCallback(myError);
// Exercise REGAL_extension_query extension
if (glIsSupportedREGAL("GL_REGAL_extension_query"))
{
printf("GL_REGAL_extension_query is supported.\n");
if (glIsSupportedREGAL("GL_EXT_debug_marker"))
printf("GL_EXT_debug_marker is supported.\n");
else
printf("GL_EXT_debug_marker is not supported.\n");
if (glIsSupportedREGAL("GL_EXT_framebuffer_object"))
printf("GL_EXT_framebuffer_object is supported.\n");
else
printf("GL_EXT_framebuffer_object is not supported.\n");
if (glIsSupportedREGAL("GL_EXT_direct_state_access"))
printf("GL_EXT_direct_state_access is supported.\n");
else
printf("GL_EXT_direct_state_access is not supported.\n");
if (glIsSupportedREGAL("GL_NV_path_rendering"))
printf("GL_NV_path_rendering is supported.\n");
else
printf("GL_NV_path_rendering is not supported.\n");
}
printf("\n");
printf("E - Toggle GL error checking.\n");
printf("D - Toggle debug checking.\n");
printf("L - Toggle driver logging.\n");
printf("M - Toggle emulation.\n");
printf("R - Toggle driver calls.\n");
printf("\n");
glutTimerFunc(16, myTick, 0);
glutDisplayFunc(myDisplay);
glutReshapeFunc(dreamTorusReshape);
glutKeyboardFunc(myKeyboard);
glutMainLoop();
return 0;
}