Source/core/rendering/compositing/CompositingLayerAssigner.h - Issue 331203003: Improve the compositing reasons when squashing fails

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Issue 331203003: Improve the compositing reasons when squashing fails (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Created 6 years, 6 months ago

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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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72 // The absolute bounding rect of all the squashed layers.	72 // The absolute bounding rect of all the squashed layers.

73 IntRect boundingRect;	73 IntRect boundingRect;

74	74

75 // This is simply the sum of the areas of the squashed rects. This can b e very skewed if the rects overlap,	75 // This is simply the sum of the areas of the squashed rects. This can b e very skewed if the rects overlap,

76 // but should be close enough to drive a heuristic.	76 // but should be close enough to drive a heuristic.

77 uint64_t totalAreaOfSquashedRects;	77 uint64_t totalAreaOfSquashedRects;

78 };	78 };

79	79

80 void assignLayersToBackingsInternal(RenderLayer, SquashingState&, bool& lay ersChanged, Vector<RenderLayer>& layersNeedingRepaint);	80 void assignLayersToBackingsInternal(RenderLayer, SquashingState&, bool& lay ersChanged, Vector<RenderLayer>& layersNeedingRepaint);

81 void assignLayersToBackingsForReflectionLayer(RenderLayer* reflectionLayer, bool& layersChanged, Vector<RenderLayer*>& layersNeedingRepaint);	81 void assignLayersToBackingsForReflectionLayer(RenderLayer* reflectionLayer, bool& layersChanged, Vector<RenderLayer*>& layersNeedingRepaint);

82 bool canSquashIntoCurrentSquashingOwner(const RenderLayer*, const SquashingS tate&);	82 CompositingReasons getReasonsPreventingSquashing(const RenderLayer*, const S quashingState&);

83 bool squashingWouldExceedSparsityTolerance(const RenderLayer* candidate, con st SquashingState&);	83 bool squashingWouldExceedSparsityTolerance(const RenderLayer* candidate, con st SquashingState&);

84 bool updateSquashingAssignment(RenderLayer, SquashingState&, CompositingSta teTransitionType, Vector<RenderLayer>& layersNeedingRepaint);	84 bool updateSquashingAssignment(RenderLayer, SquashingState&, CompositingSta teTransitionType, Vector<RenderLayer>& layersNeedingRepaint);

85 bool needsOwnBacking(const RenderLayer*) const;	85 bool needsOwnBacking(const RenderLayer*) const;

86	86

87 RenderLayerCompositor* m_compositor;	87 RenderLayerCompositor* m_compositor;

88 bool m_layerSquashingEnabled;	88 bool m_layerSquashingEnabled;

89 };	89 };

90	90

91 } // namespace WebCore	91 } // namespace WebCore

92	92

93 #endif // CompositingLayerAssigner_h	93 #endif // CompositingLayerAssigner_h

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