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 <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "cc/cc_export.h"
  14 #include "ui/gfx/rect.h"
  15 #include "ui/gfx/rect_f.h"
  16 #include "ui/gfx/transform.h"
  17
  18 namespace cc {
  19
  20 class Layer;
  21
  22 class CC_EXPORT RenderSurface {
  23 public:
  24     explicit RenderSurface(Layer*);
  25     ~RenderSurface();
  26
  27     // Returns the rect that encloses the RenderSurfaceImpl including any reflection.
  28     gfx::RectF drawableContentRect() const;
  29
  30     const gfx::Rect& contentRect() const { return m_contentRect; }
  31     void setContentRect(const gfx::Rect& contentRect) { m_contentRect = contentRect; }
  32
  33     float drawOpacity() const { return m_drawOpacity; }
  34     void setDrawOpacity(float drawOpacity) { m_drawOpacity = drawOpacity; }
  35
  36     bool drawOpacityIsAnimating() const { return m_drawOpacityIsAnimating; }
  37     void setDrawOpacityIsAnimating(bool drawOpacityIsAnimating) { m_drawOpacityIsAnimating = drawOpacityIsAnimating; }
  38
  39     // 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
  40     // rect being transformed. Position the rect so that the origin is in the center of it before applying this transform.
  41     const gfx::Transform& drawTransform() const { return m_drawTransform; }
  42     void setDrawTransform(const gfx::Transform& drawTransform) { m_drawTransform = drawTransform; }
  43
  44     const gfx::Transform& screenSpaceTransform() const { return m_screenSpaceTransform; }
  45     void setScreenSpaceTransform(const gfx::Transform& screenSpaceTransform) { m_screenSpaceTransform = screenSpaceTransform; }
  46
  47     const gfx::Transform& replicaDrawTransform() const { return m_replicaDrawTransform; }
  48     void setReplicaDrawTransform(const gfx::Transform& replicaDrawTransform) { m_replicaDrawTransform = replicaDrawTransform; }
  49
  50     const gfx::Transform& replicaScreenSpaceTransform() const { return m_replicaScreenSpaceTransform; }
  51     void setReplicaScreenSpaceTransform(const gfx::Transform& replicaScreenSpaceTransform) { m_replicaScreenSpaceTransform = replicaScreenSpaceTransform; }
  52
  53     bool targetSurfaceTransformsAreAnimating() const { return m_targetSurfaceTransformsAreAnimating; }
  54     void setTargetSurfaceTransformsAreAnimating(bool animating) { m_targetSurfaceTransformsAreAnimating = animating; }
  55     bool screenSpaceTransformsAreAnimating() const { return m_screenSpaceTransformsAreAnimating; }
  56     void setScreenSpaceTransformsAreAnimating(bool animating) { m_screenSpaceTransformsAreAnimating = animating; }
  57
  58     bool isClipped() const { return m_isClipped; }
  59     void setIsClipped(bool isClipped) { m_isClipped = isClipped; }
  60
  61     const gfx::Rect& clipRect() const { return m_clipRect; }
  62     void setClipRect(const gfx::Rect& clipRect) { m_clipRect = clipRect; }
  63
  64     typedef std::vector<scoped_refptr<Layer> > LayerList;
  65     LayerList& layerList() { return m_layerList; }
  66     // A no-op since DelegatedRendererLayers on the main thread don't have any
  67     // RenderPasses so they can't contribute to a surface.
  68     void addContributingDelegatedRenderPassLayer(Layer*) { }
  69     void clearLayerLists() { m_layerList.clear(); }
  70
  71     void setNearestAncestorThatMovesPixels(RenderSurface* surface) { m_nearestAncestorThatMovesPixels = surface; }
  72     const RenderSurface* nearestAncestorThatMovesPixels() const { return m_nearestAncestorThatMovesPixels; }
  73
  74 private:
  75     friend struct LayerIteratorActions;
  76
  77     Layer* m_owningLayer;
  78
  79     // Uses this surface's space.
  80     gfx::Rect m_contentRect;
  81
  82     float m_drawOpacity;
  83     bool m_drawOpacityIsAnimating;
  84     gfx::Transform m_drawTransform;
  85     gfx::Transform m_screenSpaceTransform;
  86     gfx::Transform m_replicaDrawTransform;
  87     gfx::Transform m_replicaScreenSpaceTransform;
  88     bool m_targetSurfaceTransformsAreAnimating;
  89     bool m_screenSpaceTransformsAreAnimating;
  90
  91     bool m_isClipped;
  92
  93     // Uses the space of the surface's target surface.
  94     gfx::Rect m_clipRect;
  95
  96     LayerList m_layerList;
  97
  98     // The nearest ancestor target surface that will contain the contents of this surface, and that is going
  99     // to move pixels within the surface (such as with a blur). This can point to itself.
 100     RenderSurface* m_nearestAncestorThatMovesPixels;
 101
 102     // For LayerIteratorActions
 103     int m_targetRenderSurfaceLayerIndexHistory;
 104     int m_currentLayerIndexHistory;
 105
 106     DISALLOW_COPY_AND_ASSIGN(RenderSurface);
 107 };
 108
 109 }
 110 #endif  // CC_RENDER_SURFACE_H_