1 files changed, 40 insertions, 0 deletions
diff --git a/src/jogl/native/macosx/ContextUpdater.h b/src/jogl/native/macosx/ContextUpdater.h
new file mode 100644
index 000000000..e8b757fac
--- /dev/null
+++ b/src/jogl/native/macosx/ContextUpdater.h
@@ -0,0 +1,40 @@
+/*
+
+Listens to NSViewGlobalFrameDidChangeNotification
+
+This notification is sent whenever an NSView that has an attached NSSurface changes size or changes screens (thus potentially changing graphics hardware drivers.)
+
+*/
+
+#import <Cocoa/Cocoa.h>
+#import <Foundation/Foundation.h>
+#import <AppKit/NSView.h>
+#import <OpenGL/OpenGL.h>
+#import <OpenGL/gl.h>
+
+//#define DEBUG_GL_LOCKS
+
+#ifdef DEBUG_GL_LOCKS
+	#define LOCK_GL(func, line) [ContextUpdater lockInFunction:func atLine:line];
+	#define UNLOCK_GL(func, line) [ContextUpdater unlockInFunction:func atLine:line];
+#else
+	#define LOCK_GL(func, line) [ContextUpdater lock];
+	#define UNLOCK_GL(func, line) [ContextUpdater unlock];
+#endif
+
+// gznote: OpenGL NOT thread safe - need to sync on update and paints
+
+@interface ContextUpdater : NSObject
+{
+}
+
++ (void) lock;
++ (void) lockInFunction:(char *)func atLine:(int)line;
++ (void) unlock;
++ (void) unlockInFunction:(char *)func atLine:(int)line;
+
+- (void) registerFor:(NSOpenGLContext *)context with: (NSView *)window;
+
+- (void) update:(NSNotification *)notification;
+
+@end