cc/render_surface.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 CC_RENDER_SURFACE_H_
   7 #define CC_RENDER_SURFACE_H_
   8
   9 #include "base/basictypes.h"
  10 #include "base/memory/ref_counted.h"
  11 #include "ui/gfx/rect.h"
  12 #include "ui/gfx/rect_f.h"
  13 #include <public/WebTransformationMatrix.h>
  14 #include <vector>
  15 #include "cc/cc_export.h"
  16
  17 namespace cc {
  18
  19 class Layer;
  20
  21 class CC_EXPORT RenderSurface {
  22 public:
  23     explicit RenderSurface(Layer*);
  24     ~RenderSurface();
  25
  26     // Returns the rect that encloses the RenderSurfaceImpl including any reflection.
  27     gfx::RectF drawableContentRect() const;
  28
  29     const gfx::Rect& contentRect() const { return m_contentRect; }
  30     void setContentRect(const gfx::Rect& 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 gfx::Rect& clipRect() const { return m_clipRect; }
  58     void setClipRect(const gfx::Rect& clipRect) { m_clipRect = clipRect; }
  59
  60     typedef std::vector<scoped_refptr<Layer> > LayerList;
  61     LayerList& layerList() { return m_layerList; }
  62     // A no-op since DelegatedRendererLayers on the main thread don't have any
  63     // RenderPasses so they can't contribute to a surface.
  64     void addContributingDelegatedRenderPassLayer(Layer*) { }
  65     void clearLayerLists() { m_layerList.clear(); }
  66
  67     void setNearestAncestorThatMovesPixels(RenderSurface* surface) { m_nearestAncestorThatMovesPixels = surface; }
  68     const RenderSurface* nearestAncestorThatMovesPixels() const { return m_nearestAncestorThatMovesPixels; }
  69
  70 private:
  71     friend struct LayerIteratorActions;
  72
  73     Layer* m_owningLayer;
  74
  75     // Uses this surface's space.
  76     gfx::Rect m_contentRect;
  77
  78     float m_drawOpacity;
  79     bool m_drawOpacityIsAnimating;
  80     WebKit::WebTransformationMatrix m_drawTransform;
  81     WebKit::WebTransformationMatrix m_screenSpaceTransform;
  82     WebKit::WebTransformationMatrix m_replicaDrawTransform;
  83     WebKit::WebTransformationMatrix m_replicaScreenSpaceTransform;
  84     bool m_targetSurfaceTransformsAreAnimating;
  85     bool m_screenSpaceTransformsAreAnimating;
  86
  87     // Uses the space of the surface's target surface.
  88     gfx::Rect m_clipRect;
  89
  90     LayerList m_layerList;
  91
  92     // The nearest ancestor target surface that will contain the contents of this surface, and that is going
  93     // to move pixels within the surface (such as with a blur). This can point to itself.
  94     RenderSurface* m_nearestAncestorThatMovesPixels;
  95
  96     // For LayerIteratorActions
  97     int m_targetRenderSurfaceLayerIndexHistory;
  98     int m_currentLayerIndexHistory;
  99
 100     DISALLOW_COPY_AND_ASSIGN(RenderSurface);
 101 };
 102
 103 }
 104 #endif  // CC_RENDER_SURFACE_H_