rework bcresources static vframe initializers, add CIN_XSYNCH

[goodguy/history.git] / cinelerra-5.1 / guicast / bcwindowbase.C

diff --git a/cinelerra-5.1/guicast/bcwindowbase.C b/cinelerra-5.1/guicast/bcwindowbase.C
index 006bca30343734bfee60f3d9e7b1828772d7cbcc..fae98cb186b9315572190fa6abd940e3d2f84a0b 100644 (file)
--- a/cinelerra-5.1/guicast/bcwindowbase.C
+++ b/cinelerra-5.1/guicast/bcwindowbase.C
@@ -684,6 +684,15 @@ Display* BC_WindowBase::init_display(const char *display_name)
                        }
                }
        }
+
+       static int xsynch = -1;
+       if( xsynch < 0 ) {
+               const char *cp = getenv("CIN_XSYNCH");
+               xsynch = !cp ? 0 : atoi(cp);
+       }
+       if( xsynch > 0 )
+               XSynchronize(display, True);
+
        return display;
 }