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Side by Side Diff: Source/core/layout/compositing/CompositingReasonFinder.cpp

Issue 1279483005: Rename REF::SlimmingPaintCompositorLayerization to SlimmingPaintV2 (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 5 years, 4 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 #include "config.h" 5 #include "config.h"
6 #include "core/layout/compositing/CompositingReasonFinder.h" 6 #include "core/layout/compositing/CompositingReasonFinder.h"
7 7
8 #include "core/CSSPropertyNames.h" 8 #include "core/CSSPropertyNames.h"
9 #include "core/dom/Document.h" 9 #include "core/dom/Document.h"
10 #include "core/frame/FrameView.h" 10 #include "core/frame/FrameView.h"
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40 } 40 }
41 41
42 bool CompositingReasonFinder::isMainFrame() const 42 bool CompositingReasonFinder::isMainFrame() const
43 { 43 {
44 // FIXME: LocalFrame::isMainFrame() is probably better. 44 // FIXME: LocalFrame::isMainFrame() is probably better.
45 return !m_layoutView.document().ownerElement(); 45 return !m_layoutView.document().ownerElement();
46 } 46 }
47 47
48 CompositingReasons CompositingReasonFinder::directReasons(const DeprecatedPaintL ayer* layer) const 48 CompositingReasons CompositingReasonFinder::directReasons(const DeprecatedPaintL ayer* layer) const
49 { 49 {
50 if (RuntimeEnabledFeatures::slimmingPaintCompositorLayerizationEnabled()) 50 if (RuntimeEnabledFeatures::slimmingPaintV2Enabled())
51 return CompositingReasonNone; 51 return CompositingReasonNone;
52 52
53 ASSERT(potentialCompositingReasonsFromStyle(layer->layoutObject()) == layer- >potentialCompositingReasonsFromStyle()); 53 ASSERT(potentialCompositingReasonsFromStyle(layer->layoutObject()) == layer- >potentialCompositingReasonsFromStyle());
54 CompositingReasons styleDeterminedDirectCompositingReasons = layer->potentia lCompositingReasonsFromStyle() & CompositingReasonComboAllDirectStyleDeterminedR easons; 54 CompositingReasons styleDeterminedDirectCompositingReasons = layer->potentia lCompositingReasonsFromStyle() & CompositingReasonComboAllDirectStyleDeterminedR easons;
55 55
56 // Apply optimizations for scroll-blocks-on which require comparing style be tween objects. 56 // Apply optimizations for scroll-blocks-on which require comparing style be tween objects.
57 if ((styleDeterminedDirectCompositingReasons & CompositingReasonScrollBlocks On) && !requiresCompositingForScrollBlocksOn(layer->layoutObject())) 57 if ((styleDeterminedDirectCompositingReasons & CompositingReasonScrollBlocks On) && !requiresCompositingForScrollBlocksOn(layer->layoutObject()))
58 styleDeterminedDirectCompositingReasons &= ~CompositingReasonScrollBlock sOn; 58 styleDeterminedDirectCompositingReasons &= ~CompositingReasonScrollBlock sOn;
59 59
60 return styleDeterminedDirectCompositingReasons | nonStyleDeterminedDirectRea sons(layer); 60 return styleDeterminedDirectCompositingReasons | nonStyleDeterminedDirectRea sons(layer);
61 } 61 }
62 62
63 // This information doesn't appear to be incorporated into CompositingReasons. 63 // This information doesn't appear to be incorporated into CompositingReasons.
64 bool CompositingReasonFinder::requiresCompositingForScrollableFrame() const 64 bool CompositingReasonFinder::requiresCompositingForScrollableFrame() const
65 { 65 {
66 // Need this done first to determine overflow. 66 // Need this done first to determine overflow.
67 ASSERT(!m_layoutView.needsLayout()); 67 ASSERT(!m_layoutView.needsLayout());
68 if (isMainFrame()) 68 if (isMainFrame())
69 return false; 69 return false;
70 70
71 if (!(m_compositingTriggers & ScrollableInnerFrameTrigger)) 71 if (!(m_compositingTriggers & ScrollableInnerFrameTrigger))
72 return false; 72 return false;
73 73
74 return m_layoutView.frameView()->isScrollable(); 74 return m_layoutView.frameView()->isScrollable();
75 } 75 }
76 76
77 CompositingReasons CompositingReasonFinder::potentialCompositingReasonsFromStyle (LayoutObject* layoutObject) const 77 CompositingReasons CompositingReasonFinder::potentialCompositingReasonsFromStyle (LayoutObject* layoutObject) const
78 { 78 {
79 if (RuntimeEnabledFeatures::slimmingPaintCompositorLayerizationEnabled()) 79 if (RuntimeEnabledFeatures::slimmingPaintV2Enabled())
80 return CompositingReasonNone; 80 return CompositingReasonNone;
81 81
82 CompositingReasons reasons = CompositingReasonNone; 82 CompositingReasons reasons = CompositingReasonNone;
83 83
84 const ComputedStyle& style = layoutObject->styleRef(); 84 const ComputedStyle& style = layoutObject->styleRef();
85 85
86 if (requiresCompositingForTransform(layoutObject)) 86 if (requiresCompositingForTransform(layoutObject))
87 reasons |= CompositingReason3DTransform; 87 reasons |= CompositingReason3DTransform;
88 88
89 if (style.backfaceVisibility() == BackfaceVisibilityHidden) 89 if (style.backfaceVisibility() == BackfaceVisibilityHidden)
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230 // Either way, we don't need to require compositing for scroll block s on. This avoids 230 // Either way, we don't need to require compositing for scroll block s on. This avoids
231 // enabling compositing by default, and avoids cluttering the root l ayers compositing reasons. 231 // enabling compositing by default, and avoids cluttering the root l ayers compositing reasons.
232 return false; 232 return false;
233 } 233 }
234 } 234 }
235 235
236 return true; 236 return true;
237 } 237 }
238 238
239 } 239 }
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