clear-repeat: print fps, use 300x300 window size
diff --git a/progs/trivial/clear-repeat.c b/progs/trivial/clear-repeat.c
index 2b3873e..9c618d4 100644
--- a/progs/trivial/clear-repeat.c
+++ b/progs/trivial/clear-repeat.c
@@ -72,6 +72,24 @@
glClearColor((sin(f)+1)/2.0,(cos(f)+1)/2.0,0.5,1);
glClear(GL_COLOR_BUFFER_BIT);
glutSwapBuffers();
+
+ {
+ static GLint T0 = 0;
+ static GLint Frames = 0;
+ GLint t = glutGet(GLUT_ELAPSED_TIME);
+
+ Frames++;
+
+ if (t - T0 >= 5000) {
+ GLfloat seconds = (t - T0) / 1000.0;
+ GLfloat fps = Frames / seconds;
+ printf("%d frames in %6.3f seconds = %6.3f FPS\n", Frames, seconds, fps);
+ fflush(stdout);
+ T0 = t;
+ Frames = 0;
+ }
+ }
+
}
glutPostRedisplay();
}
@@ -91,7 +109,7 @@
exit(1);
}
- glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+ glutInitWindowPosition(0, 0); glutInitWindowSize( 300, 300);
type = GLUT_RGB | GLUT_ALPHA;
type |= GLUT_DOUBLE;