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