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
  25 @property(nonatomic, readonly)
  26     scoped_refptr<content::CompositingIOSurfaceContext> context;
  27
  28 - (id)initWithRenderWidgetHostViewMac:(content::RenderWidgetHostViewMac*)r;
  29
  30 // Update the scale factor of the layer to match the scale factor of the
  31 // IOSurface.
  32 - (void)updateScaleFactor;
  33
  34 // Remove this layer from the layer heirarchy, and mark that
  35 // |renderWidgetHostView_| is no longer valid and may no longer be dereferenced.
  36 - (void)disableCompositing;
  37
  38 @end
  39
  40 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_LAYER_MAC_H_