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1 /* | 1 /* |
2 * Copyright (C) 2009, 2010 Apple Inc. All rights reserved. | 2 * Copyright (C) 2009, 2010 Apple Inc. All rights reserved. |
3 * Copyright (C) 2014 Google Inc. All rights reserved. | 3 * Copyright (C) 2014 Google Inc. All rights reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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45 | 45 |
46 bool layersChanged() const { return m_layersChanged; } | 46 bool layersChanged() const { return m_layersChanged; } |
47 | 47 |
48 // FIXME: This function should be private. We should remove the one caller | 48 // FIXME: This function should be private. We should remove the one caller |
49 // once we've fixed the compositing chicken/egg issues. | 49 // once we've fixed the compositing chicken/egg issues. |
50 CompositingStateTransitionType computeCompositedLayerUpdate(DeprecatedPaintL
ayer*); | 50 CompositingStateTransitionType computeCompositedLayerUpdate(DeprecatedPaintL
ayer*); |
51 | 51 |
52 private: | 52 private: |
53 struct SquashingState { | 53 struct SquashingState { |
54 SquashingState() | 54 SquashingState() |
55 : mostRecentMapping(0) | 55 : mostRecentMapping(nullptr) |
56 , hasMostRecentMapping(false) | 56 , hasMostRecentMapping(false) |
57 , haveAssignedBackingsToEntireSquashingLayerSubtree(false) | 57 , haveAssignedBackingsToEntireSquashingLayerSubtree(false) |
58 , nextSquashedLayerIndex(0) | 58 , nextSquashedLayerIndex(0) |
59 , totalAreaOfSquashedRects(0) { } | 59 , totalAreaOfSquashedRects(0) { } |
60 | 60 |
61 void updateSquashingStateForNewMapping(CompositedDeprecatedPaintLayerMap
ping*, bool hasNewCompositedDeprecatedPaintLayerMapping); | 61 void updateSquashingStateForNewMapping(CompositedDeprecatedPaintLayerMap
ping*, bool hasNewCompositedDeprecatedPaintLayerMapping); |
62 | 62 |
63 // The most recent composited backing that the layer should squash onto
if needed. | 63 // The most recent composited backing that the layer should squash onto
if needed. |
64 CompositedDeprecatedPaintLayerMapping* mostRecentMapping; | 64 CompositedDeprecatedPaintLayerMapping* mostRecentMapping; |
65 bool hasMostRecentMapping; | 65 bool hasMostRecentMapping; |
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87 void updateSquashingAssignment(DeprecatedPaintLayer*, SquashingState&, Compo
sitingStateTransitionType, Vector<DeprecatedPaintLayer*>& layersNeedingPaintInva
lidation); | 87 void updateSquashingAssignment(DeprecatedPaintLayer*, SquashingState&, Compo
sitingStateTransitionType, Vector<DeprecatedPaintLayer*>& layersNeedingPaintInva
lidation); |
88 bool needsOwnBacking(const DeprecatedPaintLayer*) const; | 88 bool needsOwnBacking(const DeprecatedPaintLayer*) const; |
89 | 89 |
90 DeprecatedPaintLayerCompositor* m_compositor; | 90 DeprecatedPaintLayerCompositor* m_compositor; |
91 bool m_layersChanged; | 91 bool m_layersChanged; |
92 }; | 92 }; |
93 | 93 |
94 } // namespace blink | 94 } // namespace blink |
95 | 95 |
96 #endif // CompositingLayerAssigner_h | 96 #endif // CompositingLayerAssigner_h |
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