src/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/rect.h"
  16 #include "ui/gfx/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(gfx::Rect content_rect) { content_rect_ = content_rect; }
  33   gfx::Rect content_rect() const { return content_rect_; }
  34
  35   void SetDrawOpacity(float opacity) { draw_opacity_ = opacity; }
  36   float draw_opacity() const { return draw_opacity_; }
  37
  38   void SetDrawOpacityIsAnimating(bool draw_opacity_is_animating) {
  39     draw_opacity_is_animating_ = draw_opacity_is_animating;
  40   }
  41   bool draw_opacity_is_animating() const { return draw_opacity_is_animating_; }
  42
  43   void SetDrawTransform(const gfx::Transform& draw_transform) {
  44     draw_transform_ = draw_transform;
  45   }
  46   const gfx::Transform& draw_transform() const { return draw_transform_; }
  47
  48   void SetScreenSpaceTransform(const gfx::Transform& screen_space_transform) {
  49     screen_space_transform_ = screen_space_transform;
  50   }
  51   const gfx::Transform& screen_space_transform() const {
  52     return screen_space_transform_;
  53   }
  54
  55   void SetReplicaDrawTransform(const gfx::Transform& replica_draw_transform) {
  56     replica_draw_transform_ = replica_draw_transform;
  57   }
  58   const gfx::Transform& replica_draw_transform() const {
  59     return replica_draw_transform_;
  60   }
  61
  62   void SetReplicaScreenSpaceTransform(
  63       const gfx::Transform& replica_screen_space_transform) {
  64     replica_screen_space_transform_ = replica_screen_space_transform;
  65   }
  66   const gfx::Transform& replica_screen_space_transform() const {
  67     return replica_screen_space_transform_;
  68   }
  69
  70   void SetTargetSurfaceTransformsAreAnimating(bool animating) {
  71     target_surface_transforms_are_animating_ = animating;
  72   }
  73   bool target_surface_transforms_are_animating() const {
  74     return target_surface_transforms_are_animating_;
  75   }
  76   void SetScreenSpaceTransformsAreAnimating(bool animating) {
  77     screen_space_transforms_are_animating_ = animating;
  78   }
  79   bool screen_space_transforms_are_animating() const {
  80     return screen_space_transforms_are_animating_;
  81   }
  82
  83   bool is_clipped() const { return is_clipped_; }
  84   void SetIsClipped(bool is_clipped) { is_clipped_ = is_clipped; }
  85
  86   gfx::Rect clip_rect() const { return clip_rect_; }
  87   void SetClipRect(gfx::Rect clip_rect) { clip_rect_ = clip_rect; }
  88
  89   // When false, the RenderSurface does not contribute to another target
  90   // RenderSurface that is being drawn for the current frame. It could still be
  91   // drawn to as a target, but its output will not be a part of any other
  92   // surface.
  93   bool contributes_to_drawn_surface() const {
  94     return contributes_to_drawn_surface_;
  95   }
  96   void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
  97     contributes_to_drawn_surface_ = contributes_to_drawn_surface;
  98   }
  99
 100   RenderSurfaceLayerList& layer_list() { return layer_list_; }
 101   // A no-op since DelegatedRendererLayers on the main thread don't have any
 102   // RenderPasses so they can't contribute to a surface.
 103   void AddContributingDelegatedRenderPassLayer(Layer* layer) {}
 104
 105   void SetNearestAncestorThatMovesPixels(RenderSurface* surface) {
 106     nearest_ancestor_that_moves_pixels_ = surface;
 107   }
 108   const RenderSurface* nearest_ancestor_that_moves_pixels() const {
 109     return nearest_ancestor_that_moves_pixels_;
 110   }
 111
 112  private:
 113   friend struct LayerIteratorActions;
 114
 115   Layer* owning_layer_;
 116
 117   // Uses this surface's space.
 118   gfx::Rect content_rect_;
 119
 120   float draw_opacity_;
 121   bool draw_opacity_is_animating_;
 122   gfx::Transform draw_transform_;
 123   gfx::Transform screen_space_transform_;
 124   gfx::Transform replica_draw_transform_;
 125   gfx::Transform replica_screen_space_transform_;
 126   bool target_surface_transforms_are_animating_;
 127   bool screen_space_transforms_are_animating_;
 128
 129   bool is_clipped_;
 130   bool contributes_to_drawn_surface_;
 131
 132   // Uses the space of the surface's target surface.
 133   gfx::Rect clip_rect_;
 134
 135   RenderSurfaceLayerList layer_list_;
 136
 137   // The nearest ancestor target surface that will contain the contents of this
 138   // surface, and that is going to move pixels within the surface (such as with
 139   // a blur). This can point to itself.
 140   RenderSurface* nearest_ancestor_that_moves_pixels_;
 141
 142   // For LayerIteratorActions
 143   int target_render_surface_layer_index_history_;
 144   int current_layer_index_history_;
 145
 146   DISALLOW_COPY_AND_ASSIGN(RenderSurface);
 147 };
 148
 149 }  // namespace cc
 150 #endif  // CC_LAYERS_RENDER_SURFACE_H_