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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/rendering/compositing/CompositingReasonFinder.h" | 6 #include "core/rendering/compositing/CompositingReasonFinder.h" |
7 | 7 |
8 #include "CSSPropertyNames.h" | 8 #include "CSSPropertyNames.h" |
9 #include "HTMLNames.h" | 9 #include "HTMLNames.h" |
10 #include "core/frame/FrameView.h" | 10 #include "core/frame/FrameView.h" |
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52 if (settings.acceleratedCompositingForCanvasEnabled()) | 52 if (settings.acceleratedCompositingForCanvasEnabled()) |
53 m_compositingTriggers |= CanvasTrigger; | 53 m_compositingTriggers |= CanvasTrigger; |
54 if (settings.acceleratedCompositingForAnimationEnabled()) | 54 if (settings.acceleratedCompositingForAnimationEnabled()) |
55 m_compositingTriggers |= AnimationTrigger; | 55 m_compositingTriggers |= AnimationTrigger; |
56 if (settings.compositedScrollingForFramesEnabled()) | 56 if (settings.compositedScrollingForFramesEnabled()) |
57 m_compositingTriggers |= ScrollableInnerFrameTrigger; | 57 m_compositingTriggers |= ScrollableInnerFrameTrigger; |
58 if (settings.acceleratedCompositingForFiltersEnabled()) | 58 if (settings.acceleratedCompositingForFiltersEnabled()) |
59 m_compositingTriggers |= FilterTrigger; | 59 m_compositingTriggers |= FilterTrigger; |
60 if (settings.acceleratedCompositingForGpuRasterizationHintEnabled()) | 60 if (settings.acceleratedCompositingForGpuRasterizationHintEnabled()) |
61 m_compositingTriggers |= GPURasterizationTrigger; | 61 m_compositingTriggers |= GPURasterizationTrigger; |
62 if (settings.acceleratedCompositingForOverflowScrollEnabled()) | 62 |
63 m_compositingTriggers |= LegacyOverflowScrollTrigger; | 63 // We map both these settings to universal overlow scrolling. |
64 if (settings.compositorDrivenAcceleratedScrollingEnabled()) | 64 // FIXME: Replace these settings with a generic compositing setting for High
DPI. |
| 65 if (settings.acceleratedCompositingForOverflowScrollEnabled() || settings.co
mpositorDrivenAcceleratedScrollingEnabled()) |
65 m_compositingTriggers |= OverflowScrollTrigger; | 66 m_compositingTriggers |= OverflowScrollTrigger; |
| 67 |
66 // FIXME: acceleratedCompositingForFixedPositionEnabled should be renamed ac
celeratedCompositingForViewportConstrainedPositionEnabled(). | 68 // FIXME: acceleratedCompositingForFixedPositionEnabled should be renamed ac
celeratedCompositingForViewportConstrainedPositionEnabled(). |
67 // Or the sticky and fixed position elements should be behind different flag
s. | 69 // Or the sticky and fixed position elements should be behind different flag
s. |
68 if (settings.acceleratedCompositingForFixedPositionEnabled()) | 70 if (settings.acceleratedCompositingForFixedPositionEnabled()) |
69 m_compositingTriggers |= ViewportConstrainedPositionedTrigger; | 71 m_compositingTriggers |= ViewportConstrainedPositionedTrigger; |
70 | |
71 // FIXME: This monkeying with the accelerated triggers is temporary and shou
ld | |
72 // be removed once the feature ships. | |
73 | |
74 // Currently, we must have the legacy path enabled to use the new path. | |
75 if (!(m_compositingTriggers & LegacyOverflowScrollTrigger)) | |
76 m_compositingTriggers &= ~OverflowScrollTrigger; | |
77 | |
78 // Enable universal overflow scrolling (and only universal overflow scrollin
g) | |
79 // on the new bleeding edge path. The above requirement (having legacy enabl
ed) | |
80 // was only necessary to avoid explosions; the legacy path created far fewer | |
81 // layers. In the world of squashing, this doesn't make sense. We never want | |
82 // to use the old path in that case. | |
83 if (RuntimeEnabledFeatures::bleedingEdgeFastPathsEnabled()) { | |
84 m_compositingTriggers |= OverflowScrollTrigger; | |
85 m_compositingTriggers &= ~LegacyOverflowScrollTrigger; | |
86 } | |
87 } | 72 } |
88 | 73 |
89 bool CompositingReasonFinder::has3DTransformTrigger() const | 74 bool CompositingReasonFinder::has3DTransformTrigger() const |
90 { | 75 { |
91 return m_compositingTriggers & ThreeDTransformTrigger; | 76 return m_compositingTriggers & ThreeDTransformTrigger; |
92 } | 77 } |
93 | 78 |
94 bool CompositingReasonFinder::hasAnimationTrigger() const | 79 bool CompositingReasonFinder::hasAnimationTrigger() const |
95 { | 80 { |
96 return m_compositingTriggers & AnimationTrigger; | 81 return m_compositingTriggers & AnimationTrigger; |
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380 *needToRecomputeCompositingRequirements = true; | 365 *needToRecomputeCompositingRequirements = true; |
381 } | 366 } |
382 return false; | 367 return false; |
383 } | 368 } |
384 } | 369 } |
385 | 370 |
386 return true; | 371 return true; |
387 } | 372 } |
388 | 373 |
389 } | 374 } |
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