cc/RenderSurfaceChromium.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 RenderSurfaceChromium_h
   7 #define RenderSurfaceChromium_h
   8
   9 #if USE(ACCELERATED_COMPOSITING)
  10
  11 #include "FloatRect.h"
  12 #include "IntRect.h"
  13 #include <public/WebTransformationMatrix.h>
  14 #include <wtf/Noncopyable.h>
  15
  16 namespace WebCore {
  17
  18 class LayerChromium;
  19
  20 class RenderSurfaceChromium {
  21     WTF_MAKE_NONCOPYABLE(RenderSurfaceChromium);
  22 public:
  23     explicit RenderSurfaceChromium(LayerChromium*);
  24     ~RenderSurfaceChromium();
  25
  26     // Returns the rect that encloses the RenderSurface including any reflection.
  27     FloatRect drawableContentRect() const;
  28
  29     const IntRect& contentRect() const { return m_contentRect; }
  30     void setContentRect(const IntRect& contentRect) { m_contentRect = contentRect; }
  31
  32     float drawOpacity() const { return m_drawOpacity; }
  33     void setDrawOpacity(float drawOpacity) { m_drawOpacity = drawOpacity; }
  34
  35     bool drawOpacityIsAnimating() const { return m_drawOpacityIsAnimating; }
  36     void setDrawOpacityIsAnimating(bool drawOpacityIsAnimating) { m_drawOpacityIsAnimating = drawOpacityIsAnimating; }
  37
  38     // This goes from content space with the origin in the center of the rect being transformed to the target space with the origin in the top left of the
  39     // rect being transformed. Position the rect so that the origin is in the center of it before applying this transform.
  40     const WebKit::WebTransformationMatrix& drawTransform() const { return m_drawTransform; }
  41     void setDrawTransform(const WebKit::WebTransformationMatrix& drawTransform) { m_drawTransform = drawTransform; }
  42
  43     const WebKit::WebTransformationMatrix& screenSpaceTransform() const { return m_screenSpaceTransform; }
  44     void setScreenSpaceTransform(const WebKit::WebTransformationMatrix& screenSpaceTransform) { m_screenSpaceTransform = screenSpaceTransform; }
  45
  46     const WebKit::WebTransformationMatrix& replicaDrawTransform() const { return m_replicaDrawTransform; }
  47     void setReplicaDrawTransform(const WebKit::WebTransformationMatrix& replicaDrawTransform) { m_replicaDrawTransform = replicaDrawTransform; }
  48
  49     const WebKit::WebTransformationMatrix& replicaScreenSpaceTransform() const { return m_replicaScreenSpaceTransform; }
  50     void setReplicaScreenSpaceTransform(const WebKit::WebTransformationMatrix& replicaScreenSpaceTransform) { m_replicaScreenSpaceTransform = replicaScreenSpaceTransform; }
  51
  52     bool targetSurfaceTransformsAreAnimating() const { return m_targetSurfaceTransformsAreAnimating; }
  53     void setTargetSurfaceTransformsAreAnimating(bool animating) { m_targetSurfaceTransformsAreAnimating = animating; }
  54     bool screenSpaceTransformsAreAnimating() const { return m_screenSpaceTransformsAreAnimating; }
  55     void setScreenSpaceTransformsAreAnimating(bool animating) { m_screenSpaceTransformsAreAnimating = animating; }
  56
  57     const IntRect& clipRect() const { return m_clipRect; }
  58     void setClipRect(const IntRect& clipRect) { m_clipRect = clipRect; }
  59
  60     void clearLayerList() { m_layerList.clear(); }
  61     Vector<RefPtr<LayerChromium> >& layerList() { return m_layerList; }
  62
  63     void setNearestAncestorThatMovesPixels(RenderSurfaceChromium* surface) { m_nearestAncestorThatMovesPixels = surface; }
  64     const RenderSurfaceChromium* nearestAncestorThatMovesPixels() const { return m_nearestAncestorThatMovesPixels; }
  65
  66 private:
  67     LayerChromium* m_owningLayer;
  68
  69     // Uses this surface's space.
  70     IntRect m_contentRect;
  71
  72     float m_drawOpacity;
  73     bool m_drawOpacityIsAnimating;
  74     WebKit::WebTransformationMatrix m_drawTransform;
  75     WebKit::WebTransformationMatrix m_screenSpaceTransform;
  76     WebKit::WebTransformationMatrix m_replicaDrawTransform;
  77     WebKit::WebTransformationMatrix m_replicaScreenSpaceTransform;
  78     bool m_targetSurfaceTransformsAreAnimating;
  79     bool m_screenSpaceTransformsAreAnimating;
  80
  81     // Uses the space of the surface's target surface.
  82     IntRect m_clipRect;
  83
  84     Vector<RefPtr<LayerChromium> > m_layerList;
  85
  86     // The nearest ancestor target surface that will contain the contents of this surface, and that is going
  87     // to move pixels within the surface (such as with a blur). This can point to itself.
  88     RenderSurfaceChromium* m_nearestAncestorThatMovesPixels;
  89
  90     // For CCLayerIteratorActions
  91     int m_targetRenderSurfaceLayerIndexHistory;
  92     int m_currentLayerIndexHistory;
  93     friend struct CCLayerIteratorActions;
  94 };
  95
  96 }
  97 #endif // USE(ACCELERATED_COMPOSITING)
  98
  99 #endif