cc/layers/render_surface_impl.h

   1 // Copyright 2011 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 #ifndef CC_LAYERS_RENDER_SURFACE_IMPL_H_
   6 #define CC_LAYERS_RENDER_SURFACE_IMPL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "cc/base/cc_export.h"
  14 #include "cc/layers/layer_lists.h"
  15 #include "cc/quads/render_pass.h"
  16 #include "cc/quads/shared_quad_state.h"
  17 #include "ui/gfx/geometry/rect.h"
  18 #include "ui/gfx/geometry/rect_f.h"
  19 #include "ui/gfx/transform.h"
  20
  21 namespace cc {
  22
  23 class DamageTracker;
  24 class DelegatedRendererLayerImpl;
  25 template <typename LayerType>
  26 class OcclusionTracker;
  27 class RenderPassId;
  28 class RenderPassSink;
  29 class LayerImpl;
  30 template <typename LayerType>
  31 class LayerIterator;
  32
  33 struct AppendQuadsData;
  34
  35 class CC_EXPORT RenderSurfaceImpl {
  36  public:
  37   explicit RenderSurfaceImpl(LayerImpl* owning_layer);
  38   virtual ~RenderSurfaceImpl();
  39
  40   gfx::PointF ContentRectCenter() const {
  41     return gfx::RectF(content_rect_).CenterPoint();
  42   }
  43
  44   // Returns the rect that encloses the RenderSurfaceImpl including any
  45   // reflection.
  46   gfx::RectF DrawableContentRect() const;
  47
  48   void SetDrawOpacity(float opacity) { draw_opacity_ = opacity; }
  49   float draw_opacity() const { return draw_opacity_; }
  50
  51   void SetNearestOcclusionImmuneAncestor(RenderSurfaceImpl* surface) {
  52     nearest_occlusion_immune_ancestor_ = surface;
  53   }
  54   const RenderSurfaceImpl* nearest_occlusion_immune_ancestor() const {
  55     return nearest_occlusion_immune_ancestor_;
  56   }
  57
  58   void SetDrawOpacityIsAnimating(bool draw_opacity_is_animating) {
  59     draw_opacity_is_animating_ = draw_opacity_is_animating;
  60   }
  61   bool draw_opacity_is_animating() const { return draw_opacity_is_animating_; }
  62
  63   void SetDrawTransform(const gfx::Transform& draw_transform) {
  64     draw_transform_ = draw_transform;
  65   }
  66   const gfx::Transform& draw_transform() const { return draw_transform_; }
  67
  68   void SetScreenSpaceTransform(const gfx::Transform& screen_space_transform) {
  69     screen_space_transform_ = screen_space_transform;
  70   }
  71   const gfx::Transform& screen_space_transform() const {
  72     return screen_space_transform_;
  73   }
  74
  75   void SetReplicaDrawTransform(const gfx::Transform& replica_draw_transform) {
  76     replica_draw_transform_ = replica_draw_transform;
  77   }
  78   const gfx::Transform& replica_draw_transform() const {
  79     return replica_draw_transform_;
  80   }
  81
  82   void SetReplicaScreenSpaceTransform(
  83       const gfx::Transform& replica_screen_space_transform) {
  84     replica_screen_space_transform_ = replica_screen_space_transform;
  85   }
  86   const gfx::Transform& replica_screen_space_transform() const {
  87     return replica_screen_space_transform_;
  88   }
  89
  90   void SetTargetSurfaceTransformsAreAnimating(bool animating) {
  91     target_surface_transforms_are_animating_ = animating;
  92   }
  93   bool target_surface_transforms_are_animating() const {
  94     return target_surface_transforms_are_animating_;
  95   }
  96   void SetScreenSpaceTransformsAreAnimating(bool animating) {
  97     screen_space_transforms_are_animating_ = animating;
  98   }
  99   bool screen_space_transforms_are_animating() const {
 100     return screen_space_transforms_are_animating_;
 101   }
 102
 103   void SetIsClipped(bool is_clipped) { is_clipped_ = is_clipped; }
 104   bool is_clipped() const { return is_clipped_; }
 105
 106   void SetClipRect(const gfx::Rect& clip_rect);
 107   gfx::Rect clip_rect() const { return clip_rect_; }
 108
 109   // When false, the RenderSurface does not contribute to another target
 110   // RenderSurface that is being drawn for the current frame. It could still be
 111   // drawn to as a target, but its output will not be a part of any other
 112   // surface.
 113   bool contributes_to_drawn_surface() const {
 114     return contributes_to_drawn_surface_;
 115   }
 116   void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
 117     contributes_to_drawn_surface_ = contributes_to_drawn_surface;
 118   }
 119
 120   void SetContentRect(const gfx::Rect& content_rect);
 121   gfx::Rect content_rect() const { return content_rect_; }
 122
 123   LayerImplList& layer_list() { return layer_list_; }
 124   void AddContributingDelegatedRenderPassLayer(LayerImpl* layer);
 125   void ClearLayerLists();
 126
 127   int OwningLayerId() const;
 128
 129   void ResetPropertyChangedFlag() { surface_property_changed_ = false; }
 130   bool SurfacePropertyChanged() const;
 131   bool SurfacePropertyChangedOnlyFromDescendant() const;
 132
 133   DamageTracker* damage_tracker() const { return damage_tracker_.get(); }
 134
 135   RenderPassId GetRenderPassId();
 136
 137   void AppendRenderPasses(RenderPassSink* pass_sink);
 138   void AppendQuads(RenderPass* render_pass,
 139                    const OcclusionTracker<LayerImpl>& occlusion_tracker,
 140                    AppendQuadsData* append_quads_data,
 141                    bool for_replica,
 142                    RenderPassId render_pass_id);
 143
 144  private:
 145   LayerImpl* owning_layer_;
 146
 147   // Uses this surface's space.
 148   gfx::Rect content_rect_;
 149   bool surface_property_changed_ : 1;
 150   bool draw_opacity_is_animating_ : 1;
 151   bool target_surface_transforms_are_animating_ : 1;
 152   bool screen_space_transforms_are_animating_ : 1;
 153
 154   bool is_clipped_ : 1;
 155   bool contributes_to_drawn_surface_ : 1;
 156
 157   float draw_opacity_;
 158   gfx::Transform draw_transform_;
 159   gfx::Transform screen_space_transform_;
 160   gfx::Transform replica_draw_transform_;
 161   gfx::Transform replica_screen_space_transform_;
 162
 163   // Uses the space of the surface's target surface.
 164   gfx::Rect clip_rect_;
 165
 166   LayerImplList layer_list_;
 167   std::vector<DelegatedRendererLayerImpl*>
 168       contributing_delegated_render_pass_layer_list_;
 169
 170   // The nearest ancestor target surface that will contain the contents of this
 171   // surface, and that ignores outside occlusion. This can point to itself.
 172   RenderSurfaceImpl* nearest_occlusion_immune_ancestor_;
 173
 174   scoped_ptr<DamageTracker> damage_tracker_;
 175
 176   // For LayerIteratorActions
 177   int target_render_surface_layer_index_history_;
 178   int current_layer_index_history_;
 179
 180   friend class LayerIterator<LayerImpl>;
 181
 182   DISALLOW_COPY_AND_ASSIGN(RenderSurfaceImpl);
 183 };
 184
 185 }  // namespace cc
 186 #endif  // CC_LAYERS_RENDER_SURFACE_IMPL_H_