cc/ContentLayerChromium.h

   1 // Copyright 2010 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
   6 #ifndef ContentLayerChromium_h
   7 #define ContentLayerChromium_h
   8
   9 #if USE(ACCELERATED_COMPOSITING)
  10
  11 #include "LayerPainterChromium.h"
  12 #include "TiledLayerChromium.h"
  13
  14 class SkCanvas;
  15
  16 namespace WebCore {
  17
  18 class ContentLayerChromiumClient;
  19 class FloatRect;
  20 class IntRect;
  21 class LayerTextureUpdater;
  22
  23 class ContentLayerPainter : public LayerPainterChromium {
  24     WTF_MAKE_NONCOPYABLE(ContentLayerPainter);
  25 public:
  26     static PassOwnPtr<ContentLayerPainter> create(ContentLayerChromiumClient*);
  27
  28     virtual void paint(SkCanvas*, const IntRect& contentRect, FloatRect& opaque) OVERRIDE;
  29
  30 private:
  31     explicit ContentLayerPainter(ContentLayerChromiumClient*);
  32
  33     ContentLayerChromiumClient* m_client;
  34 };
  35
  36 // A layer that renders its contents into an SkCanvas.
  37 class ContentLayerChromium : public TiledLayerChromium {
  38 public:
  39     static PassRefPtr<ContentLayerChromium> create(ContentLayerChromiumClient*);
  40
  41     virtual ~ContentLayerChromium();
  42
  43     void clearClient() { m_client = 0; }
  44
  45     virtual bool drawsContent() const OVERRIDE;
  46     virtual void setTexturePriorities(const CCPriorityCalculator&) OVERRIDE;
  47     virtual void update(CCTextureUpdateQueue&, const CCOcclusionTracker*, CCRenderingStats&) OVERRIDE;
  48     virtual bool needMoreUpdates() OVERRIDE;
  49
  50     virtual void setOpaque(bool) OVERRIDE;
  51
  52 protected:
  53     explicit ContentLayerChromium(ContentLayerChromiumClient*);
  54
  55
  56 private:
  57     virtual LayerTextureUpdater* textureUpdater() const OVERRIDE { return m_textureUpdater.get(); }
  58     virtual void createTextureUpdaterIfNeeded() OVERRIDE;
  59
  60     ContentLayerChromiumClient* m_client;
  61     RefPtr<LayerTextureUpdater> m_textureUpdater;
  62 };
  63
  64 }
  65 #endif // USE(ACCELERATED_COMPOSITING)
  66
  67 #endif