progs/demos: add fps output to cubemap

[mesa.git] / progs / demos / clearspd.c

diff --git a/progs/demos/clearspd.c b/progs/demos/clearspd.c
index e06a28e08f2e1665250fd9d6d31a7df5ae3773ce..42953f6675e01bd5fa3458f19d5e1515925c6437 100644 (file)
--- a/progs/demos/clearspd.c
+++ b/progs/demos/clearspd.c
@@ -1,36 +1,9 @@
-/* $Id: clearspd.c,v 1.3 2000/12/07 21:50:39 brianp Exp $ */
 
 /*
  * Simple GLUT program to measure glClear() and glutSwapBuffers() speed.
  * Brian Paul  February 15, 1997  This file in public domain.
  */
 
-/*
- * $Log: clearspd.c,v $
- * Revision 1.3  2000/12/07 21:50:39  brianp
- * call glFinish() before getting t1 time
- *
- * Revision 1.2  2000/04/10 16:25:15  brianp
- * fixed visual selection and reporting results
- *
- * Revision 1.1.1.1  1999/08/19 00:55:40  jtg
- * Imported sources
- *
- * Revision 3.3  1999/03/28 18:18:33  brianp
- * minor clean-up
- *
- * Revision 3.2  1999/03/18 08:16:34  joukj
- *
- *     cmpstr needs string.h to included to avoid warnings
- *
- * Revision 3.1  1998/06/29 02:38:30  brianp
- * removed unneeded includes
- *
- * Revision 3.0  1998/02/14 18:42:29  brianp
- * initial rev
- *
- */
-
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -87,6 +60,12 @@ static void Display( void )
       glutSwapBuffers();
    }
 
+   /* NOTE: If clearspd doesn't map it's window immediately on
+    * starting, swaps will be istantaneous, so this will send Loops
+    * towards infinity.  When a window is finally mapped, it may be
+    * minutes before the first call to glutSwapBuffers, making it look
+    * like there's a driver bug.
+    */
    if (t1-t0 < MinPeriod) {
       /* Next time do more clears to get longer elapsed time */
       Loops *= 2;