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