render_surface_impl.h revision 7dbb3d5cf0c15f500944d211057644d6a2f37371 
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
21namespace cc {
22
23class DamageTracker;
24class DelegatedRendererLayerImpl;
25class QuadSink;
26class RenderPassSink;
27class LayerImpl;
28
29struct AppendQuadsData;
30
31class 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_
187