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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CC_LAYERS_CONTENT_LAYER_CLIENT_H_ | 5 #ifndef CC_LAYERS_CONTENT_LAYER_CLIENT_H_ |
6 #define CC_LAYERS_CONTENT_LAYER_CLIENT_H_ | 6 #define CC_LAYERS_CONTENT_LAYER_CLIENT_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 | 9 |
10 #include "cc/base/cc_export.h" | 10 #include "cc/base/cc_export.h" |
11 #include "cc/playback/display_item_list.h" | 11 #include "cc/playback/display_item_list.h" |
12 | 12 |
13 namespace gfx { | 13 namespace gfx { |
14 class Rect; | 14 class Rect; |
15 } | 15 } |
16 | 16 |
17 namespace cc { | 17 namespace cc { |
18 | 18 |
19 class CC_EXPORT ContentLayerClient { | 19 class CC_EXPORT ContentLayerClient { |
20 public: | 20 public: |
21 enum PaintingControlSetting { | 21 enum PaintingControlSetting { |
22 PAINTING_BEHAVIOR_NORMAL, | 22 PAINTING_BEHAVIOR_NORMAL, |
23 DISPLAY_LIST_CONSTRUCTION_DISABLED, | 23 DISPLAY_LIST_CONSTRUCTION_DISABLED, |
24 DISPLAY_LIST_CACHING_DISABLED, | 24 DISPLAY_LIST_CACHING_DISABLED, |
25 DISPLAY_LIST_PAINTING_DISABLED | 25 DISPLAY_LIST_PAINTING_DISABLED, |
| 26 SUBSEQUENCE_CACHING_DISABLED, |
26 }; | 27 }; |
27 | 28 |
28 // The paintable region is the rectangular region, within the bounds of the | 29 // The paintable region is the rectangular region, within the bounds of the |
29 // layer this client paints, that the client is capable of painting via | 30 // layer this client paints, that the client is capable of painting via |
30 // paintContents(). Calling paintContents() will return a DisplayItemList | 31 // paintContents(). Calling paintContents() will return a DisplayItemList |
31 // that is guaranteed valid only within this region. | 32 // that is guaranteed valid only within this region. |
32 virtual gfx::Rect PaintableRegion() = 0; | 33 virtual gfx::Rect PaintableRegion() = 0; |
33 | 34 |
34 virtual scoped_refptr<DisplayItemList> PaintContentsToDisplayList( | 35 virtual scoped_refptr<DisplayItemList> PaintContentsToDisplayList( |
35 PaintingControlSetting painting_status) = 0; | 36 PaintingControlSetting painting_status) = 0; |
36 | 37 |
37 // If true the layer may skip clearing the background before rasterizing, | 38 // If true the layer may skip clearing the background before rasterizing, |
38 // because it will cover any uncleared data with content. | 39 // because it will cover any uncleared data with content. |
39 virtual bool FillsBoundsCompletely() const = 0; | 40 virtual bool FillsBoundsCompletely() const = 0; |
40 | 41 |
41 // Returns an estimate of the current memory usage within this object, | 42 // Returns an estimate of the current memory usage within this object, |
42 // excluding memory shared with painting artifacts (i.e., | 43 // excluding memory shared with painting artifacts (i.e., |
43 // DisplayItemList). Should be invoked after PaintContentsToDisplayList, | 44 // DisplayItemList). Should be invoked after PaintContentsToDisplayList, |
44 // so that the result includes data cached internally during painting. | 45 // so that the result includes data cached internally during painting. |
45 virtual size_t GetApproximateUnsharedMemoryUsage() const = 0; | 46 virtual size_t GetApproximateUnsharedMemoryUsage() const = 0; |
46 | 47 |
47 protected: | 48 protected: |
48 virtual ~ContentLayerClient() {} | 49 virtual ~ContentLayerClient() {} |
49 }; | 50 }; |
50 | 51 |
51 } // namespace cc | 52 } // namespace cc |
52 | 53 |
53 #endif // CC_LAYERS_CONTENT_LAYER_CLIENT_H_ | 54 #endif // CC_LAYERS_CONTENT_LAYER_CLIENT_H_ |
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