cc/layers/render_surface.h

   1 // Copyright 2010 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
   6 #ifndef CC_LAYERS_RENDER_SURFACE_H_
   7 #define CC_LAYERS_RENDER_SURFACE_H_
   8
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "cc/base/cc_export.h"
  14 #include "cc/layers/layer_lists.h"
  15 #include "ui/gfx/geometry/rect.h"
  16 #include "ui/gfx/geometry/rect_f.h"
  17 #include "ui/gfx/transform.h"
  18
  19 namespace cc {
  20
  21 class Layer;
  22
  23 class CC_EXPORT RenderSurface {
  24  public:
  25   explicit RenderSurface(Layer* owning_layer);
  26   ~RenderSurface();
  27
  28   // Returns the rect that encloses the RenderSurfaceImpl including any
  29   // reflection.
  30   gfx::RectF DrawableContentRect() const;
  31
  32   void SetContentRect(const gfx::Rect& content_rect) {
  33       content_rect_ = content_rect;
  34   }
  35   gfx::Rect content_rect() const { return content_rect_; }
  36
  37   void SetDrawOpacity(float opacity) { draw_opacity_ = opacity; }
  38   float draw_opacity() const { return draw_opacity_; }
  39
  40   void SetDrawOpacityIsAnimating(bool draw_opacity_is_animating) {
  41     draw_opacity_is_animating_ = draw_opacity_is_animating;
  42   }
  43   bool draw_opacity_is_animating() const { return draw_opacity_is_animating_; }
  44
  45   void SetDrawTransform(const gfx::Transform& draw_transform) {
  46     draw_transform_ = draw_transform;
  47   }
  48   const gfx::Transform& draw_transform() const { return draw_transform_; }
  49
  50   void SetScreenSpaceTransform(const gfx::Transform& screen_space_transform) {
  51     screen_space_transform_ = screen_space_transform;
  52   }
  53   const gfx::Transform& screen_space_transform() const {
  54     return screen_space_transform_;
  55   }
  56
  57   void SetReplicaDrawTransform(const gfx::Transform& replica_draw_transform) {
  58     replica_draw_transform_ = replica_draw_transform;
  59   }
  60   const gfx::Transform& replica_draw_transform() const {
  61     return replica_draw_transform_;
  62   }
  63
  64   void SetReplicaScreenSpaceTransform(
  65       const gfx::Transform& replica_screen_space_transform) {
  66     replica_screen_space_transform_ = replica_screen_space_transform;
  67   }
  68   const gfx::Transform& replica_screen_space_transform() const {
  69     return replica_screen_space_transform_;
  70   }
  71
  72   void SetTargetSurfaceTransformsAreAnimating(bool animating) {
  73     target_surface_transforms_are_animating_ = animating;
  74   }
  75   bool target_surface_transforms_are_animating() const {
  76     return target_surface_transforms_are_animating_;
  77   }
  78   void SetScreenSpaceTransformsAreAnimating(bool animating) {
  79     screen_space_transforms_are_animating_ = animating;
  80   }
  81   bool screen_space_transforms_are_animating() const {
  82     return screen_space_transforms_are_animating_;
  83   }
  84
  85   bool is_clipped() const { return is_clipped_; }
  86   void SetIsClipped(bool is_clipped) { is_clipped_ = is_clipped; }
  87
  88   gfx::Rect clip_rect() const { return clip_rect_; }
  89   void SetClipRect(const gfx::Rect& clip_rect) { clip_rect_ = clip_rect; }
  90
  91   // When false, the RenderSurface does not contribute to another target
  92   // RenderSurface that is being drawn for the current frame. It could still be
  93   // drawn to as a target, but its output will not be a part of any other
  94   // surface.
  95   bool contributes_to_drawn_surface() const {
  96     return contributes_to_drawn_surface_;
  97   }
  98   void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
  99     contributes_to_drawn_surface_ = contributes_to_drawn_surface;
 100   }
 101
 102   LayerList& layer_list() { return layer_list_; }
 103   // A no-op since DelegatedRendererLayers on the main thread don't have any
 104   // RenderPasses so they can't contribute to a surface.
 105   void AddContributingDelegatedRenderPassLayer(Layer* layer) {}
 106
 107   void SetNearestOcclusionImmuneAncestor(RenderSurface* surface) {
 108     nearest_occlusion_immune_ancestor_ = surface;
 109   }
 110   const RenderSurface* nearest_occlusion_immune_ancestor() const {
 111     return nearest_occlusion_immune_ancestor_;
 112   }
 113
 114   void ClearLayerLists();
 115
 116  private:
 117   Layer* owning_layer_;
 118
 119   // Uses this surface's space.
 120   gfx::Rect content_rect_;
 121
 122   float draw_opacity_;
 123   bool draw_opacity_is_animating_;
 124   gfx::Transform draw_transform_;
 125   gfx::Transform screen_space_transform_;
 126   gfx::Transform replica_draw_transform_;
 127   gfx::Transform replica_screen_space_transform_;
 128   bool target_surface_transforms_are_animating_;
 129   bool screen_space_transforms_are_animating_;
 130
 131   bool is_clipped_;
 132   bool contributes_to_drawn_surface_;
 133
 134   // Uses the space of the surface's target surface.
 135   gfx::Rect clip_rect_;
 136
 137   LayerList layer_list_;
 138
 139   // The nearest ancestor target surface that will contain the contents of this
 140   // surface, and that ignores outside occlusion. This can point to itself.
 141   RenderSurface* nearest_occlusion_immune_ancestor_;
 142
 143   // For LayerIteratorActions
 144   int target_render_surface_layer_index_history_;
 145   size_t current_layer_index_history_;
 146
 147   DISALLOW_COPY_AND_ASSIGN(RenderSurface);
 148 };
 149
 150 }  // namespace cc
 151 #endif  // CC_LAYERS_RENDER_SURFACE_H_