PKGBUILD fix libva/vdpau deps

[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / cwindowgui.C

diff --git a/cinelerra-5.1/cinelerra/cwindowgui.C b/cinelerra-5.1/cinelerra/cwindowgui.C
index 2491571d0adb712a035f049f8967c5bb9628e42a..b62bd09bba03219887937855380c35394a8ed27d 100644 (file)
--- a/cinelerra-5.1/cinelerra/cwindowgui.C
+++ b/cinelerra-5.1/cinelerra/cwindowgui.C
@@ -1131,7 +1131,17 @@ void CWindowCanvas::draw_refresh(int flush)
                        get_canvas()->unlock_window();
                        get_canvas()->flush();
                        get_canvas()->sync_display();
-                       mwindow->playback_3d->finish_output();
+// this code is to idle rendering before drawing overlays on refresh frame
+// if this is not done, occationally opengl finishs late, and overwrites
+// the x11 refresh frame and the overlay is not visible.  Rarely happens.
+// bug in gl libs may segv if glfinish is called, workaround is no finish
+                       static int cin_finish = -1;
+                       if( cin_finish < 0 ) {
+                               const char *cp = getenv("CIN_FINISH");
+                               cin_finish = !cp ? 1 : atoi(cp);
+                       }
+                       if( cin_finish )
+                               mwindow->playback_3d->finish_output();
                        get_canvas()->lock_window("CWindowCanvas::draw_refresh");
                }
                if( refresh_frame && refresh_frame->get_w()>0 && refresh_frame->get_h()>0 ) {