Source/core/rendering/compositing/CompositingReasonFinder.h - Issue 233063004: Suppress layer creation for descendants of GPU-rasterized layers

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Issue 233063004: Suppress layer creation for descendants of GPU-rasterized layers (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Move assert disabler in ~CompositedLayerMapping Created 6 years, 8 months ago

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1 // Copyright 2014 The Chromium Authors. All rights reserved.	1 // Copyright 2014 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 CompositingReasonFinder_h	5 #ifndef CompositingReasonFinder_h

6 #define CompositingReasonFinder_h	6 #define CompositingReasonFinder_h

7	7

8 #include "core/rendering/RenderLayer.h"	8 #include "core/rendering/RenderLayer.h"

9 #include "core/rendering/compositing/CompositingTriggers.h"	9 #include "core/rendering/compositing/CompositingTriggers.h"

10 #include "platform/graphics/CompositingReasons.h"	10 #include "platform/graphics/CompositingReasons.h"

11	11

12 namespace WebCore {	12 namespace WebCore {

13	13

14 class RenderLayer;	14 class RenderLayer;

15 class RenderObject;	15 class RenderObject;

16 class RenderView;	16 class RenderView;

17	17

18 class CompositingReasonFinder {	18 class CompositingReasonFinder {

19 WTF_MAKE_NONCOPYABLE(CompositingReasonFinder);	19 WTF_MAKE_NONCOPYABLE(CompositingReasonFinder);

20 public:	20 public:

21 explicit CompositingReasonFinder(RenderView&);	21 explicit CompositingReasonFinder(RenderView&);

22	22

23 CompositingReasons styleDeterminedReasons(RenderObject*) const;	23 CompositingReasons styleDeterminedReasons(RenderObject*) const;

24 CompositingReasons directReasons(const RenderLayer, bool needToRecomputeCo mpositingRequirements) const;	24 CompositingReasons directReasons(const RenderLayer, bool needToRecomputeCo mpositingRequirements) const;

25	25

	26 CompositingReasons suppressWillChangeAndAnimationForGpuRasterization(const R enderLayer*, CompositingReasons styleReasons) const;

	27

26 void updateTriggers();	28 void updateTriggers();

27 bool hasTriggers() const { return m_compositingTriggers; }	29 bool hasTriggers() const { return m_compositingTriggers; }

28	30

29 bool has3DTransformTrigger() const;	31 bool has3DTransformTrigger() const;

30 bool hasAnimationTrigger() const;	32 bool hasAnimationTrigger() const;

31 bool hasOverflowScrollTrigger() const;	33 bool hasOverflowScrollTrigger() const;

32 bool hasLegacyOverflowScrollTrigger() const;	34 bool hasLegacyOverflowScrollTrigger() const;

33	35

34 bool requiresCompositingForScrollableFrame() const;	36 bool requiresCompositingForScrollableFrame() const;

35 bool requiresCompositingForPosition(RenderObject, const RenderLayer, Rende rLayer::ViewportConstrainedNotCompositedReason, bool needToRecomputeCompositin gRequirements) const;	37 bool requiresCompositingForPosition(RenderObject, const RenderLayer, Rende rLayer::ViewportConstrainedNotCompositedReason, bool needToRecomputeCompositin gRequirements) const;

36	38

37 static bool isViewportConstrainedFixedOrStickyLayer(const RenderLayer*);	39 static bool isViewportConstrainedFixedOrStickyLayer(const RenderLayer*);

38	40

39 private:	41 private:

40 bool isMainFrame() const;	42 bool isMainFrame() const;

41	43

42 CompositingReasons nonStyleDeterminedDirectReasons(const RenderLayer, bool needToRecomputeCompositingRequirements) const;	44 CompositingReasons nonStyleDeterminedDirectReasons(const RenderLayer, bool needToRecomputeCompositingRequirements) const;

43	45

44 bool requiresCompositingForAnimation(RenderObject*) const;	46 bool requiresCompositingForAnimation(RenderObject*) const;

45 bool requiresCompositingForTransform(RenderObject*) const;	47 bool requiresCompositingForTransform(RenderObject*) const;

46 bool requiresCompositingForBackfaceVisibilityHidden(RenderObject*) const;	48 bool requiresCompositingForBackfaceVisibilityHidden(RenderObject*) const;

47 bool requiresCompositingForFilters(RenderObject*) const;	49 bool requiresCompositingForFilters(RenderObject*) const;

48 bool requiresCompositingForOverflowScrollingParent(const RenderLayer*) const ;	50 bool requiresCompositingForOverflowScrollingParent(const RenderLayer*) const ;

49 bool requiresCompositingForOutOfFlowClipping(const RenderLayer*) const;	51 bool requiresCompositingForOutOfFlowClipping(const RenderLayer*) const;

50 bool requiresCompositingForOverflowScrolling(const RenderLayer*) const;	52 bool requiresCompositingForOverflowScrolling(const RenderLayer*) const;

51 bool requiresCompositingForPositionSticky(RenderObject, const RenderLayer) const;	53 bool requiresCompositingForPositionSticky(RenderObject, const RenderLayer) const;

52 bool requiresCompositingForPositionFixed(RenderObject, const RenderLayer, RenderLayer::ViewportConstrainedNotCompositedReason, bool needToRecomputeCompo sitingRequirements) const;	54 bool requiresCompositingForPositionFixed(RenderObject, const RenderLayer, RenderLayer::ViewportConstrainedNotCompositedReason, bool needToRecomputeCompo sitingRequirements) const;

53 bool requiresCompositingForWillChange(const RenderObject*) const;	55 bool requiresCompositingForWillChangeCompositingHint(const RenderObject*) co nst;

	56 bool requiresCompositingForWillChangeGpuRasterizationHint(const RenderObject *) const;

54	57

55 RenderView& m_renderView;	58 RenderView& m_renderView;

56 CompositingTriggerFlags m_compositingTriggers;	59 CompositingTriggerFlags m_compositingTriggers;

57 };	60 };

58	61

59 } // namespace WebCore	62 } // namespace WebCore

60	63

61 #endif // CompositingReasonFinder_h	64 #endif // CompositingReasonFinder_h

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