sky/engine/core/rendering/compositing/CompositingLayerAssigner.h - Issue 709623002: Remove sparsity tolerance check when considering squashing layers

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Side by Side Diff: sky/engine/core/rendering/compositing/CompositingLayerAssigner.h

Issue 709623002: Remove sparsity tolerance check when considering squashing layers (Closed) Base URL: https://github.com/domokit/mojo.git@master

Patch Set: Created 6 years, 1 month 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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74 // The absolute bounding rect of all the squashed layers.	74 // The absolute bounding rect of all the squashed layers.

75 IntRect boundingRect;	75 IntRect boundingRect;

76	76

77 // This is simply the sum of the areas of the squashed rects. This can b e very skewed if the rects overlap,	77 // This is simply the sum of the areas of the squashed rects. This can b e very skewed if the rects overlap,

78 // but should be close enough to drive a heuristic.	78 // but should be close enough to drive a heuristic.

79 uint64_t totalAreaOfSquashedRects;	79 uint64_t totalAreaOfSquashedRects;

80 };	80 };

81	81

82 void assignLayersToBackingsInternal(RenderLayer, SquashingState&, Vector<Re nderLayer>& layersNeedingPaintInvalidation);	82 void assignLayersToBackingsInternal(RenderLayer, SquashingState&, Vector<Re nderLayer>& layersNeedingPaintInvalidation);

83 CompositingReasons getReasonsPreventingSquashing(const RenderLayer*, const S quashingState&);	83 CompositingReasons getReasonsPreventingSquashing(const RenderLayer*, const S quashingState&);

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

85 void updateSquashingAssignment(RenderLayer, SquashingState&, CompositingSta teTransitionType, Vector<RenderLayer>& layersNeedingPaintInvalidation);	84 void updateSquashingAssignment(RenderLayer, SquashingState&, CompositingSta teTransitionType, Vector<RenderLayer>& layersNeedingPaintInvalidation);

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

87	86

88 RenderLayerCompositor* m_compositor;	87 RenderLayerCompositor* m_compositor;

89 bool m_layerSquashingEnabled;	88 bool m_layerSquashingEnabled;

90 bool m_layersChanged;	89 bool m_layersChanged;

91 };	90 };

92	91

93 } // namespace blink	92 } // namespace blink

94	93

95 #endif // CompositingLayerAssigner_h	94 #endif // CompositingLayerAssigner_h

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