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Issue 1739893006: Skip PaintLayer empty paint phases if it previously painted nothing (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 4 years, 9 months ago
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1 /* 1 /*
2 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved. 2 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
3 * 3 *
4 * Portions are Copyright (C) 1998 Netscape Communications Corporation. 4 * Portions are Copyright (C) 1998 Netscape Communications Corporation.
5 * 5 *
6 * Other contributors: 6 * Other contributors:
7 * Robert O'Callahan <roc+@cs.cmu.edu> 7 * Robert O'Callahan <roc+@cs.cmu.edu>
8 * David Baron <dbaron@fas.harvard.edu> 8 * David Baron <dbaron@fas.harvard.edu>
9 * Christian Biesinger <cbiesinger@web.de> 9 * Christian Biesinger <cbiesinger@web.de>
10 * Randall Jesup <rjesup@wgate.com> 10 * Randall Jesup <rjesup@wgate.com>
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91 #include "wtf/text/CString.h" 91 #include "wtf/text/CString.h"
92 92
93 namespace blink { 93 namespace blink {
94 94
95 namespace { 95 namespace {
96 96
97 static CompositingQueryMode gCompositingQueryMode = 97 static CompositingQueryMode gCompositingQueryMode =
98 CompositingQueriesAreOnlyAllowedInCertainDocumentLifecyclePhases; 98 CompositingQueriesAreOnlyAllowedInCertainDocumentLifecyclePhases;
99 99
100 struct SameSizeAsPaintLayer : DisplayItemClient { 100 struct SameSizeAsPaintLayer : DisplayItemClient {
101 int bitFields; 101 uint32_t bitFields1, bitFields2;
102 void* pointers[9]; 102 void* pointers[9];
103 LayoutUnit layoutUnits[4]; 103 LayoutUnit layoutUnits[4];
104 IntSize size; 104 IntSize size;
105 OwnPtrWillBePersistent<PaintLayerScrollableArea> scrollableArea; 105 OwnPtrWillBePersistent<PaintLayerScrollableArea> scrollableArea;
106 struct { 106 struct {
107 IntRect rect; 107 IntRect rect;
108 void* pointers[2]; 108 void* pointers[2];
109 } ancestorCompositingInputs; 109 } ancestorCompositingInputs;
110 struct { 110 struct {
111 IntSize size; 111 IntSize size;
(...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after
153 , m_needsAncestorDependentCompositingInputsUpdate(true) 153 , m_needsAncestorDependentCompositingInputsUpdate(true)
154 , m_needsDescendantDependentCompositingInputsUpdate(true) 154 , m_needsDescendantDependentCompositingInputsUpdate(true)
155 , m_childNeedsCompositingInputsUpdate(true) 155 , m_childNeedsCompositingInputsUpdate(true)
156 , m_hasCompositingDescendant(false) 156 , m_hasCompositingDescendant(false)
157 , m_hasNonCompositedChild(false) 157 , m_hasNonCompositedChild(false)
158 , m_shouldIsolateCompositedDescendants(false) 158 , m_shouldIsolateCompositedDescendants(false)
159 , m_lostGroupedMapping(false) 159 , m_lostGroupedMapping(false)
160 , m_needsRepaint(false) 160 , m_needsRepaint(false)
161 , m_previousPaintResult(PaintLayerPainter::FullyPainted) 161 , m_previousPaintResult(PaintLayerPainter::FullyPainted)
162 , m_needsPaintPhaseDescendantOutlines(false) 162 , m_needsPaintPhaseDescendantOutlines(false)
163 , m_previousPaintPhaseDescendantOutlinesWasEmpty(false)
163 , m_needsPaintPhaseFloat(false) 164 , m_needsPaintPhaseFloat(false)
165 , m_previousPaintPhaseFloatWasEmpty(false)
164 , m_needsPaintPhaseDescendantBlockBackgrounds(false) 166 , m_needsPaintPhaseDescendantBlockBackgrounds(false)
167 , m_previousPaintPhaseDescendantBlockBackgroundsWasEmpty(false)
165 , m_hasDescendantWithClipPath(false) 168 , m_hasDescendantWithClipPath(false)
166 , m_hasNonIsolatedDescendantWithBlendMode(false) 169 , m_hasNonIsolatedDescendantWithBlendMode(false)
167 , m_hasAncestorWithClipPath(false) 170 , m_hasAncestorWithClipPath(false)
168 , m_layoutObject(layoutObject) 171 , m_layoutObject(layoutObject)
169 , m_parent(0) 172 , m_parent(0)
170 , m_previous(0) 173 , m_previous(0)
171 , m_next(0) 174 , m_next(0)
172 , m_first(0) 175 , m_first(0)
173 , m_last(0) 176 , m_last(0)
174 , m_staticInlinePosition(0) 177 , m_staticInlinePosition(0)
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2836 2839
2837 void showLayerTree(const blink::LayoutObject* layoutObject) 2840 void showLayerTree(const blink::LayoutObject* layoutObject)
2838 { 2841 {
2839 if (!layoutObject) { 2842 if (!layoutObject) {
2840 fprintf(stderr, "Cannot showLayerTree. Root is (nil)\n"); 2843 fprintf(stderr, "Cannot showLayerTree. Root is (nil)\n");
2841 return; 2844 return;
2842 } 2845 }
2843 showLayerTree(layoutObject->enclosingLayer()); 2846 showLayerTree(layoutObject->enclosingLayer());
2844 } 2847 }
2845 #endif 2848 #endif
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