src/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   std::string Name() const;
  37
  38   gfx::PointF ContentRectCenter() const {
  39     return gfx::RectF(content_rect_).CenterPoint();
  40   }
  41
  42   // Returns the rect that encloses the RenderSurfaceImpl including any
  43   // reflection.
  44   gfx::RectF DrawableContentRect() const;
  45
  46   void SetDrawOpacity(float opacity) { draw_opacity_ = opacity; }
  47   float draw_opacity() const { return draw_opacity_; }
  48
  49   void SetNearestAncestorThatMovesPixels(RenderSurfaceImpl* surface) {
  50     nearest_ancestor_that_moves_pixels_ = surface;
  51   }
  52   const RenderSurfaceImpl* nearest_ancestor_that_moves_pixels() const {
  53     return nearest_ancestor_that_moves_pixels_;
  54   }
  55
  56   void SetDrawOpacityIsAnimating(bool draw_opacity_is_animating) {
  57     draw_opacity_is_animating_ = draw_opacity_is_animating;
  58   }
  59   bool draw_opacity_is_animating() const { return draw_opacity_is_animating_; }
  60
  61   void SetDrawTransform(const gfx::Transform& draw_transform) {
  62     draw_transform_ = draw_transform;
  63   }
  64   const gfx::Transform& draw_transform() const { return draw_transform_; }
  65
  66   void SetScreenSpaceTransform(const gfx::Transform& screen_space_transform) {
  67     screen_space_transform_ = screen_space_transform;
  68   }
  69   const gfx::Transform& screen_space_transform() const {
  70     return screen_space_transform_;
  71   }
  72
  73   void SetReplicaDrawTransform(const gfx::Transform& replica_draw_transform) {
  74     replica_draw_transform_ = replica_draw_transform;
  75   }
  76   const gfx::Transform& replica_draw_transform() const {
  77     return replica_draw_transform_;
  78   }
  79
  80   void SetReplicaScreenSpaceTransform(
  81       const gfx::Transform& replica_screen_space_transform) {
  82     replica_screen_space_transform_ = replica_screen_space_transform;
  83   }
  84   const gfx::Transform& replica_screen_space_transform() const {
  85     return replica_screen_space_transform_;
  86   }
  87
  88   void SetTargetSurfaceTransformsAreAnimating(bool animating) {
  89     target_surface_transforms_are_animating_ = animating;
  90   }
  91   bool target_surface_transforms_are_animating() const {
  92     return target_surface_transforms_are_animating_;
  93   }
  94   void SetScreenSpaceTransformsAreAnimating(bool animating) {
  95     screen_space_transforms_are_animating_ = animating;
  96   }
  97   bool screen_space_transforms_are_animating() const {
  98     return screen_space_transforms_are_animating_;
  99   }
 100
 101   void SetIsClipped(bool is_clipped) { is_clipped_ = is_clipped; }
 102   bool is_clipped() const { return is_clipped_; }
 103
 104   void SetClipRect(gfx::Rect clip_rect);
 105   gfx::Rect clip_rect() const { return clip_rect_; }
 106
 107   // When false, the RenderSurface does not contribute to another target
 108   // RenderSurface that is being drawn for the current frame. It could still be
 109   // drawn to as a target, but its output will not be a part of any other
 110   // surface.
 111   bool contributes_to_drawn_surface() const {
 112     return contributes_to_drawn_surface_;
 113   }
 114   void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
 115     contributes_to_drawn_surface_ = contributes_to_drawn_surface;
 116   }
 117
 118   bool ContentsChanged() const;
 119
 120   void SetContentRect(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   RenderPass::Id RenderPassId();
 136
 137   void AppendRenderPasses(RenderPassSink* pass_sink);
 138   void AppendQuads(QuadSink* quad_sink,
 139                    AppendQuadsData* append_quads_data,
 140                    bool for_replica,
 141                    RenderPass::Id render_pass_id);
 142
 143  private:
 144   LayerImpl* owning_layer_;
 145
 146   // Uses this surface's space.
 147   gfx::Rect content_rect_;
 148   bool surface_property_changed_;
 149
 150   float draw_opacity_;
 151   bool draw_opacity_is_animating_;
 152   gfx::Transform draw_transform_;
 153   gfx::Transform screen_space_transform_;
 154   gfx::Transform replica_draw_transform_;
 155   gfx::Transform replica_screen_space_transform_;
 156   bool target_surface_transforms_are_animating_;
 157   bool screen_space_transforms_are_animating_;
 158
 159   bool is_clipped_;
 160   bool contributes_to_drawn_surface_;
 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
 169   // The nearest ancestor target surface that will contain the contents of this
 170   // surface, and that is going to move pixels within the surface (such as with
 171   // a blur). This can point to itself.
 172   RenderSurfaceImpl* nearest_ancestor_that_moves_pixels_;
 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 struct LayerIteratorActions;
 181
 182   DISALLOW_COPY_AND_ASSIGN(RenderSurfaceImpl);
 183 };
 184
 185 }  // namespace cc
 186 #endif  // CC_LAYERS_RENDER_SURFACE_IMPL_H_