cc/layers/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_LAYERS_RENDER_SURFACE_H_
   7 #define CC_LAYERS_RENDER_SURFACE_H_
   8
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "cc/base/cc_export.h"
  14 #include "cc/layers/layer_lists.h"
  15 #include "ui/gfx/geometry/rect.h"
  16 #include "ui/gfx/geometry/rect_f.h"
  17 #include "ui/gfx/transform.h"
  18
  19 namespace cc {
  20
  21 class Layer;
  22 template <typename LayerType>
  23 class LayerIterator;
  24
  25 class CC_EXPORT RenderSurface {
  26  public:
  27   explicit RenderSurface(Layer* owning_layer);
  28   ~RenderSurface();
  29
  30   // Returns the rect that encloses the RenderSurfaceImpl including any
  31   // reflection.
  32   gfx::RectF DrawableContentRect() const;
  33
  34   void SetContentRect(const gfx::Rect& content_rect) {
  35       content_rect_ = content_rect;
  36   }
  37   gfx::Rect content_rect() const { return content_rect_; }
  38
  39   void SetDrawOpacity(float opacity) { draw_opacity_ = opacity; }
  40   float draw_opacity() const { return draw_opacity_; }
  41
  42   void SetDrawOpacityIsAnimating(bool draw_opacity_is_animating) {
  43     draw_opacity_is_animating_ = draw_opacity_is_animating;
  44   }
  45   bool draw_opacity_is_animating() const { return draw_opacity_is_animating_; }
  46
  47   void SetDrawTransform(const gfx::Transform& draw_transform) {
  48     draw_transform_ = draw_transform;
  49   }
  50   const gfx::Transform& draw_transform() const { return draw_transform_; }
  51
  52   void SetScreenSpaceTransform(const gfx::Transform& screen_space_transform) {
  53     screen_space_transform_ = screen_space_transform;
  54   }
  55   const gfx::Transform& screen_space_transform() const {
  56     return screen_space_transform_;
  57   }
  58
  59   void SetReplicaDrawTransform(const gfx::Transform& replica_draw_transform) {
  60     replica_draw_transform_ = replica_draw_transform;
  61   }
  62   const gfx::Transform& replica_draw_transform() const {
  63     return replica_draw_transform_;
  64   }
  65
  66   void SetReplicaScreenSpaceTransform(
  67       const gfx::Transform& replica_screen_space_transform) {
  68     replica_screen_space_transform_ = replica_screen_space_transform;
  69   }
  70   const gfx::Transform& replica_screen_space_transform() const {
  71     return replica_screen_space_transform_;
  72   }
  73
  74   void SetTargetSurfaceTransformsAreAnimating(bool animating) {
  75     target_surface_transforms_are_animating_ = animating;
  76   }
  77   bool target_surface_transforms_are_animating() const {
  78     return target_surface_transforms_are_animating_;
  79   }
  80   void SetScreenSpaceTransformsAreAnimating(bool animating) {
  81     screen_space_transforms_are_animating_ = animating;
  82   }
  83   bool screen_space_transforms_are_animating() const {
  84     return screen_space_transforms_are_animating_;
  85   }
  86
  87   bool is_clipped() const { return is_clipped_; }
  88   void SetIsClipped(bool is_clipped) { is_clipped_ = is_clipped; }
  89
  90   gfx::Rect clip_rect() const { return clip_rect_; }
  91   void SetClipRect(const gfx::Rect& clip_rect) { clip_rect_ = clip_rect; }
  92
  93   // When false, the RenderSurface does not contribute to another target
  94   // RenderSurface that is being drawn for the current frame. It could still be
  95   // drawn to as a target, but its output will not be a part of any other
  96   // surface.
  97   bool contributes_to_drawn_surface() const {
  98     return contributes_to_drawn_surface_;
  99   }
 100   void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
 101     contributes_to_drawn_surface_ = contributes_to_drawn_surface;
 102   }
 103
 104   LayerList& layer_list() { return layer_list_; }
 105   // A no-op since DelegatedRendererLayers on the main thread don't have any
 106   // RenderPasses so they can't contribute to a surface.
 107   void AddContributingDelegatedRenderPassLayer(Layer* layer) {}
 108
 109   void SetNearestOcclusionImmuneAncestor(RenderSurface* surface) {
 110     nearest_occlusion_immune_ancestor_ = surface;
 111   }
 112   const RenderSurface* nearest_occlusion_immune_ancestor() const {
 113     return nearest_occlusion_immune_ancestor_;
 114   }
 115
 116   void ClearLayerLists();
 117
 118  private:
 119   friend class LayerIterator<Layer>;
 120
 121   Layer* owning_layer_;
 122
 123   // Uses this surface's space.
 124   gfx::Rect content_rect_;
 125
 126   float draw_opacity_;
 127   bool draw_opacity_is_animating_;
 128   gfx::Transform draw_transform_;
 129   gfx::Transform screen_space_transform_;
 130   gfx::Transform replica_draw_transform_;
 131   gfx::Transform replica_screen_space_transform_;
 132   bool target_surface_transforms_are_animating_;
 133   bool screen_space_transforms_are_animating_;
 134
 135   bool is_clipped_;
 136   bool contributes_to_drawn_surface_;
 137
 138   // Uses the space of the surface's target surface.
 139   gfx::Rect clip_rect_;
 140
 141   LayerList layer_list_;
 142
 143   // The nearest ancestor target surface that will contain the contents of this
 144   // surface, and that ignores outside occlusion. This can point to itself.
 145   RenderSurface* nearest_occlusion_immune_ancestor_;
 146
 147   // For LayerIteratorActions
 148   int target_render_surface_layer_index_history_;
 149   int current_layer_index_history_;
 150
 151   DISALLOW_COPY_AND_ASSIGN(RenderSurface);
 152 };
 153
 154 }  // namespace cc
 155 #endif  // CC_LAYERS_RENDER_SURFACE_H_