Source/core/rendering/compositing/CompositingReasonFinder.h - Issue 270383002: Remove will-change: contents GPU rasterization hint

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Issue 270383002: Remove will-change: contents GPU rasterization hint (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Created 6 years, 7 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 = 0) const;	24 CompositingReasons directReasons(const RenderLayer, bool needToRecomputeCo mpositingRequirements = 0) const;

25	25

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

27

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

29	27

30 bool hasOverflowScrollTrigger() const;	28 bool hasOverflowScrollTrigger() const;

31 bool hasLegacyOverflowScrollTrigger() const;	29 bool hasLegacyOverflowScrollTrigger() const;

32	30

33 bool requiresCompositingForScrollableFrame() const;	31 bool requiresCompositingForScrollableFrame() const;

34 bool requiresCompositingForPosition(RenderObject, const RenderLayer, Rende rLayer::ViewportConstrainedNotCompositedReason, bool needToRecomputeCompositin gRequirements) const;	32 bool requiresCompositingForPosition(RenderObject, const RenderLayer, Rende rLayer::ViewportConstrainedNotCompositedReason, bool needToRecomputeCompositin gRequirements) const;

35	33

36 static bool isViewportConstrainedFixedOrStickyLayer(const RenderLayer*);	34 static bool isViewportConstrainedFixedOrStickyLayer(const RenderLayer*);

37	35

38 private:	36 private:

39 bool isMainFrame() const;	37 bool isMainFrame() const;

40	38

41 CompositingReasons nonStyleDeterminedDirectReasons(const RenderLayer, bool needToRecomputeCompositingRequirements) const;	39 CompositingReasons nonStyleDeterminedDirectReasons(const RenderLayer, bool needToRecomputeCompositingRequirements) const;

42	40

43 bool requiresCompositingForAnimation(RenderObject*) const;	41 bool requiresCompositingForAnimation(RenderObject*) const;

44 bool requiresCompositingForTransform(RenderObject*) const;	42 bool requiresCompositingForTransform(RenderObject*) const;

45 bool requiresCompositingForBackfaceVisibilityHidden(RenderObject*) const;	43 bool requiresCompositingForBackfaceVisibilityHidden(RenderObject*) const;

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

47 bool requiresCompositingForOverflowScrollingParent(const RenderLayer*) const ;	45 bool requiresCompositingForOverflowScrollingParent(const RenderLayer*) const ;

48 bool requiresCompositingForOutOfFlowClipping(const RenderLayer*) const;	46 bool requiresCompositingForOutOfFlowClipping(const RenderLayer*) const;

49 bool requiresCompositingForOverflowScrolling(const RenderLayer*) const;	47 bool requiresCompositingForOverflowScrolling(const RenderLayer*) const;

50 bool requiresCompositingForPositionSticky(RenderObject, const RenderLayer) const;	48 bool requiresCompositingForPositionSticky(RenderObject, const RenderLayer) const;

51 bool requiresCompositingForPositionFixed(RenderObject, const RenderLayer, RenderLayer::ViewportConstrainedNotCompositedReason, bool needToRecomputeCompo sitingRequirements) const;	49 bool requiresCompositingForPositionFixed(RenderObject, const RenderLayer, RenderLayer::ViewportConstrainedNotCompositedReason, bool needToRecomputeCompo sitingRequirements) const;

52 bool requiresCompositingForWillChangeCompositingHint(const RenderObject*) co nst;	50 bool requiresCompositingForWillChangeCompositingHint(const RenderObject*) co nst;

53 bool requiresCompositingForWillChangeGpuRasterizationHint(const RenderObject *) const;

54	51

55 RenderView& m_renderView;	52 RenderView& m_renderView;

56 CompositingTriggerFlags m_compositingTriggers;	53 CompositingTriggerFlags m_compositingTriggers;

57 };	54 };

58	55

59 } // namespace WebCore	56 } // namespace WebCore

60	57

61 #endif // CompositingReasonFinder_h	58 #endif // CompositingReasonFinder_h

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