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 "cc/trees/occlusion.h"
  18 #include "ui/gfx/geometry/rect.h"
  19 #include "ui/gfx/geometry/rect_f.h"
  20 #include "ui/gfx/transform.h"
  21
  22 namespace cc {
  23
  24 class DamageTracker;
  25 class DelegatedRendererLayerImpl;
  26 class Occlusion;
  27 class RenderPassId;
  28 class RenderPassSink;
  29 class LayerImpl;
  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   SkColor GetDebugBorderColor() const;
  58   SkColor GetReplicaDebugBorderColor() const;
  59
  60   float GetDebugBorderWidth() const;
  61   float GetReplicaDebugBorderWidth() const;
  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 SetIsClipped(bool is_clipped) { is_clipped_ = is_clipped; }
  91   bool is_clipped() const { return is_clipped_; }
  92
  93   void SetClipRect(const gfx::Rect& clip_rect);
  94   gfx::Rect clip_rect() const { return clip_rect_; }
  95
  96   // When false, the RenderSurface does not contribute to another target
  97   // RenderSurface that is being drawn for the current frame. It could still be
  98   // drawn to as a target, but its output will not be a part of any other
  99   // surface.
 100   bool contributes_to_drawn_surface() const {
 101     return contributes_to_drawn_surface_;
 102   }
 103   void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
 104     contributes_to_drawn_surface_ = contributes_to_drawn_surface;
 105   }
 106
 107   void SetContentRect(const gfx::Rect& content_rect);
 108   gfx::Rect content_rect() const { return content_rect_; }
 109
 110   const Occlusion& occlusion_in_content_space() const {
 111     return occlusion_in_content_space_;
 112   }
 113   void set_occlusion_in_content_space(const Occlusion& occlusion) {
 114     occlusion_in_content_space_ = occlusion;
 115   }
 116
 117   LayerImplList& layer_list() { return layer_list_; }
 118   void AddContributingDelegatedRenderPassLayer(LayerImpl* layer);
 119   void ClearLayerLists();
 120
 121   int OwningLayerId() const;
 122
 123   void ResetPropertyChangedFlag() { surface_property_changed_ = false; }
 124   bool SurfacePropertyChanged() const;
 125   bool SurfacePropertyChangedOnlyFromDescendant() const;
 126
 127   DamageTracker* damage_tracker() const { return damage_tracker_.get(); }
 128
 129   RenderPassId GetRenderPassId();
 130
 131   void AppendRenderPasses(RenderPassSink* pass_sink);
 132   void AppendQuads(RenderPass* render_pass,
 133                    const gfx::Transform& draw_transform,
 134                    const Occlusion& occlusion_in_content_space,
 135                    SkColor debug_border_color,
 136                    float debug_border_width,
 137                    LayerImpl* mask_layer,
 138                    AppendQuadsData* append_quads_data,
 139                    RenderPassId render_pass_id);
 140
 141   int TransformTreeIndex() const;
 142   int ClipTreeIndex() const;
 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 target_surface_transforms_are_animating_ : 1;
 151   bool screen_space_transforms_are_animating_ : 1;
 152
 153   bool is_clipped_ : 1;
 154   bool contributes_to_drawn_surface_ : 1;
 155
 156   float draw_opacity_;
 157   gfx::Transform draw_transform_;
 158   gfx::Transform screen_space_transform_;
 159   gfx::Transform replica_draw_transform_;
 160   gfx::Transform replica_screen_space_transform_;
 161
 162   // Uses the space of the surface's target surface.
 163   gfx::Rect clip_rect_;
 164
 165   LayerImplList layer_list_;
 166   std::vector<DelegatedRendererLayerImpl*>
 167       contributing_delegated_render_pass_layer_list_;
 168   Occlusion occlusion_in_content_space_;
 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   size_t current_layer_index_history_;
 179
 180   friend class LayerIterator;
 181
 182   DISALLOW_COPY_AND_ASSIGN(RenderSurfaceImpl);
 183 };
 184
 185 }  // namespace cc
 186 #endif  // CC_LAYERS_RENDER_SURFACE_IMPL_H_