improve delays created by vicon drawing locks, reset_cache segv fix, gang track toolt...

[goodguy/cinelerra.git] / cinelerra-5.1 / cinelerra / canvas.h

diff --git a/cinelerra-5.1/cinelerra/canvas.h b/cinelerra-5.1/cinelerra/canvas.h
index dd3b574d05952f4b9c638ddaace21b0abecc9bb0..51b7a2010d769f0614ce7fc28dd7fcb91207c5a9 100644 (file)
--- a/cinelerra-5.1/cinelerra/canvas.h
+++ b/cinelerra-5.1/cinelerra/canvas.h
@@ -126,6 +126,10 @@ public:
 // Redraws the refresh_frame
        virtual void draw_refresh(int flush = 1) {};
        virtual void clear(int flash=1);
+// draw scope
+       virtual int scope_on() { return 0; }
+       virtual void draw_scope(VFrame *frame, int refresh) {}
+       void process_scope(VideoDevice *video, VFrame *frame);
 
 // Get top left offset of canvas relative to output.
 // Normally negative.  Can be positive if output is smaller than canvas.