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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_LAYER_MAC_H_
#define CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_LAYER_MAC_H_
#import <Cocoa/Cocoa.h>
#include "base/mac/scoped_cftyperef.h"
#include "base/memory/ref_counted.h"
namespace content {
class CompositingIOSurfaceContext;
class RenderWidgetHostViewMac;
}
// The CoreAnimation layer for drawing accelerated content.
@interface CompositingIOSurfaceLayer : CAOpenGLLayer {
@private
content::RenderWidgetHostViewMac* renderWidgetHostView_;
scoped_refptr<content::CompositingIOSurfaceContext> context_;
// Used to track when canDrawInCGLContext should return YES. This can be
// in response to receiving a new compositor frame, or from any of the events
// that cause setNeedsDisplay to be called on the layer.
BOOL needsDisplay_;
}
- (id)initWithRenderWidgetHostViewMac:(content::RenderWidgetHostViewMac*)r;
// Remove this layer from the layer heirarchy, and mark that
// |renderWidgetHostView_| is no longer valid and may no longer be dereferenced.
- (void)disableCompositing;
// Called when a new frame is received.
- (void)gotNewFrame;
// Called when it has been a while since a new frame has been received, and the
// layer should become not-asynchronous.
- (void)timerSinceGotNewFrameFired;
@end
#endif // CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_LAYER_MAC_H_
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