compute reasonable animate rate (Marcelo Magallon)
diff --git a/progs/samples/stretch.c b/progs/samples/stretch.c
index 9efa8e1..1fd015d 100644
--- a/progs/samples/stretch.c
+++ b/progs/samples/stretch.c
@@ -265,6 +265,17 @@
void Animate(void)
{
+ static double t0 = -1.;
+ double t, dt;
+ t = glutGet(GLUT_ELAPSED_TIME) / 1000.;
+ if (t0 < 0.)
+ t0 = t;
+ dt = t - t0;
+
+ if (dt < 1./60.)
+ return;
+
+ t0 = t;
switch (op) {
case OP_STRETCH:
@@ -307,6 +318,10 @@
return GL_TRUE;
}
+#if !defined(GLUTCALLBACK)
+#define GLUTCALLBACK
+#endif
+
void GLUTCALLBACK glut_post_redisplay_p(void)
{
glutPostRedisplay();