Avoiding flashing effects in the OSD of full featured DVB cards by explicitly clearing the OSD windows before opening them

1 files changed, 9 insertions, 1 deletions

diff --git a/dvbosd.c b/dvbosd.c
index 8056499f..39032fd7 100644
--- a/dvbosd.c
+++ b/dvbosd.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbosd.c 1.23 2004/06/12 13:10:03 kls Exp $
+ * $Id: dvbosd.c 1.24 2004/07/18 10:20:05 kls Exp $
  */
 
 #include "dvbosd.h"
@@ -39,6 +39,14 @@ cDvbOsd::cDvbOsd(int Left, int Top, int OsdDev)
   shown = false;
   if (osdDev < 0)
      esyslog("ERROR: illegal OSD device handle (%d)!", osdDev);
+  else {
+     // must clear all windows here to avoid flashing effects - doesn't work if done
+     // in Flush() only for the windows that are actually used...
+     for (int i = 0; i < MAXNUMWINDOWS; i++) {
+         Cmd(OSD_SetWindow, 0, i + 1);
+         Cmd(OSD_Clear);
+         }
+     }
 }
 
 cDvbOsd::~cDvbOsd()