content/browser/renderer_host/compositing_iosurface_layer_mac.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_LAYER_MAC_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_LAYER_MAC_H_
   7
   8 #import <Cocoa/Cocoa.h>
   9
  10 #include "base/mac/scoped_cftyperef.h"
  11 #include "base/memory/ref_counted.h"
  12
  13 namespace content {
  14 class CompositingIOSurfaceContext;
  15 class RenderWidgetHostViewMac;
  16 }
  17
  18 // The CoreAnimation layer for drawing accelerated content.
  19 @interface CompositingIOSurfaceLayer : CAOpenGLLayer {
  20  @private
  21   content::RenderWidgetHostViewMac* renderWidgetHostView_;
  22   scoped_refptr<content::CompositingIOSurfaceContext> context_;
  23
  24   // Used to track when canDrawInCGLContext should return YES. This can be
  25   // in response to receiving a new compositor frame, or from any of the events
  26   // that cause setNeedsDisplay to be called on the layer.
  27   BOOL needsDisplay_;
  28 }
  29
  30 - (id)initWithRenderWidgetHostViewMac:(content::RenderWidgetHostViewMac*)r;
  31
  32 // Remove this layer from the layer heirarchy, and mark that
  33 // |renderWidgetHostView_| is no longer valid and may no longer be dereferenced.
  34 - (void)disableCompositing;
  35
  36 // Called when a new frame is received.
  37 - (void)gotNewFrame;
  38
  39 // Called when it has been a while since a new frame has been received, and the
  40 // layer should become not-asynchronous.
  41 - (void)timerSinceGotNewFrameFired;
  42
  43 @end
  44
  45 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_LAYER_MAC_H_