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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 CompositingReasons_h | 5 #ifndef CompositingReasons_h |
6 #define CompositingReasons_h | 6 #define CompositingReasons_h |
7 | 7 |
8 #include "platform/PlatformExport.h" | 8 #include "platform/PlatformExport.h" |
9 #include "wtf/Allocator.h" | 9 #include "wtf/Allocator.h" |
10 #include <stdint.h> | 10 #include <stdint.h> |
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77 << 37; | 77 << 37; |
78 const uint64_t CompositingReasonLayerForScrollCorner = UINT64_C(1) << 38; | 78 const uint64_t CompositingReasonLayerForScrollCorner = UINT64_C(1) << 38; |
79 const uint64_t CompositingReasonLayerForScrollingContents = UINT64_C(1) << 39; | 79 const uint64_t CompositingReasonLayerForScrollingContents = UINT64_C(1) << 39; |
80 const uint64_t CompositingReasonLayerForScrollingContainer = UINT64_C(1) << 40; | 80 const uint64_t CompositingReasonLayerForScrollingContainer = UINT64_C(1) << 40; |
81 const uint64_t CompositingReasonLayerForSquashingContents = UINT64_C(1) << 41; | 81 const uint64_t CompositingReasonLayerForSquashingContents = UINT64_C(1) << 41; |
82 const uint64_t CompositingReasonLayerForSquashingContainer = UINT64_C(1) << 42; | 82 const uint64_t CompositingReasonLayerForSquashingContainer = UINT64_C(1) << 42; |
83 const uint64_t CompositingReasonLayerForForeground = UINT64_C(1) << 43; | 83 const uint64_t CompositingReasonLayerForForeground = UINT64_C(1) << 43; |
84 const uint64_t CompositingReasonLayerForBackground = UINT64_C(1) << 44; | 84 const uint64_t CompositingReasonLayerForBackground = UINT64_C(1) << 44; |
85 const uint64_t CompositingReasonLayerForMask = UINT64_C(1) << 45; | 85 const uint64_t CompositingReasonLayerForMask = UINT64_C(1) << 45; |
86 const uint64_t CompositingReasonLayerForClippingMask = UINT64_C(1) << 46; | 86 const uint64_t CompositingReasonLayerForClippingMask = UINT64_C(1) << 46; |
87 const uint64_t CompositingReasonLayerForAncestorClippingMask = UINT64_C(1) | |
88 << 47; | |
89 const uint64_t CompositingReasonLayerForScrollingBlockSelection = UINT64_C(1) | 87 const uint64_t CompositingReasonLayerForScrollingBlockSelection = UINT64_C(1) |
90 << 48; | 88 << 47; |
91 // Composited layer painted on top of all other layers as decoration | 89 // Composited layer painted on top of all other layers as decoration |
92 const uint64_t CompositingReasonLayerForDecoration = UINT64_C(1) << 49; | 90 const uint64_t CompositingReasonLayerForDecoration = UINT64_C(1) << 48; |
93 | 91 |
94 // Composited elements with inline transforms trigger assumed overlap so that | 92 // Composited elements with inline transforms trigger assumed overlap so that |
95 // we can update their transforms quickly. | 93 // we can update their transforms quickly. |
96 const uint64_t CompositingReasonInlineTransform = UINT64_C(1) << 50; | 94 const uint64_t CompositingReasonInlineTransform = UINT64_C(1) << 49; |
97 | 95 |
98 const uint64_t CompositingReasonCompositorProxy = UINT64_C(1) << 51; | 96 const uint64_t CompositingReasonCompositorProxy = UINT64_C(1) << 50; |
99 | 97 |
100 // Various combinations of compositing reasons are defined here also, for more | 98 // Various combinations of compositing reasons are defined here also, for more |
101 // intutive and faster bitwise logic. | 99 // intutive and faster bitwise logic. |
102 const uint64_t CompositingReasonComboAllDirectReasons = | 100 const uint64_t CompositingReasonComboAllDirectReasons = |
103 CompositingReason3DTransform | CompositingReasonVideo | | 101 CompositingReason3DTransform | CompositingReasonVideo | |
104 CompositingReasonCanvas | CompositingReasonPlugin | | 102 CompositingReasonCanvas | CompositingReasonPlugin | |
105 CompositingReasonIFrame | CompositingReasonBackfaceVisibilityHidden | | 103 CompositingReasonIFrame | CompositingReasonBackfaceVisibilityHidden | |
106 CompositingReasonActiveAnimation | CompositingReasonTransitionProperty | | 104 CompositingReasonActiveAnimation | CompositingReasonTransitionProperty | |
107 CompositingReasonScrollDependentPosition | | 105 CompositingReasonScrollDependentPosition | |
108 CompositingReasonOverflowScrollingTouch | | 106 CompositingReasonOverflowScrollingTouch | |
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180 const char* description; | 178 const char* description; |
181 }; | 179 }; |
182 | 180 |
183 PLATFORM_EXPORT extern const CompositingReasonStringMap | 181 PLATFORM_EXPORT extern const CompositingReasonStringMap |
184 kCompositingReasonStringMap[]; | 182 kCompositingReasonStringMap[]; |
185 PLATFORM_EXPORT extern const size_t kNumberOfCompositingReasons; | 183 PLATFORM_EXPORT extern const size_t kNumberOfCompositingReasons; |
186 | 184 |
187 } // namespace blink | 185 } // namespace blink |
188 | 186 |
189 #endif // CompositingReasons_h | 187 #endif // CompositingReasons_h |
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