OLD | NEW |
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/MathExtras.h" | 9 #include "wtf/MathExtras.h" |
10 #include <stdint.h> | 10 #include <stdint.h> |
11 | 11 |
12 namespace blink { | 12 namespace blink { |
13 | 13 |
14 const uint64_t CompositingReasonNone = 0; | 14 const uint64_t CompositingReasonNone = 0; |
15 const uint64_t CompositingReasonAll = ~stat
ic_cast<uint64_t>(0); | 15 const uint64_t CompositingReasonAll = ~stat
ic_cast<uint64_t>(0); |
16 | 16 |
17 // Intrinsic reasons that can be known right away by the layer | 17 // Intrinsic reasons that can be known right away by the layer |
18 const uint64_t CompositingReason3DTransform = UINT6
4_C(1) << 0; | 18 const uint64_t CompositingReason3DTransform = UINT6
4_C(1) << 0; |
19 const uint64_t CompositingReasonVideo = UINT6
4_C(1) << 1; | 19 const uint64_t CompositingReasonVideo = UINT6
4_C(1) << 1; |
20 const uint64_t CompositingReasonCanvas = UINT6
4_C(1) << 2; | 20 const uint64_t CompositingReasonCanvas = UINT6
4_C(1) << 2; |
21 const uint64_t CompositingReasonPlugin = UINT6
4_C(1) << 3; | 21 const uint64_t CompositingReasonPlugin = UINT6
4_C(1) << 3; |
22 const uint64_t CompositingReasonIFrame = UINT6
4_C(1) << 4; | 22 const uint64_t CompositingReasonIFrame = UINT6
4_C(1) << 4; |
23 const uint64_t CompositingReasonBackfaceVisibilityHidden = UINT6
4_C(1) << 5; | 23 const uint64_t CompositingReasonBackfaceVisibilityHidden = UINT6
4_C(1) << 5; |
24 const uint64_t CompositingReasonActiveAnimation = UINT6
4_C(1) << 6; | 24 const uint64_t CompositingReasonActiveAnimation = UINT6
4_C(1) << 6; |
25 const uint64_t CompositingReasonTransitionProperty = UINT6
4_C(1) << 7; | 25 const uint64_t CompositingReasonTransitionProperty = UINT6
4_C(1) << 7; |
26 const uint64_t CompositingReasonPositionFixed = UINT6
4_C(1) << 8; | 26 const uint64_t CompositingReasonPositionFixed = UINT6
4_C(1) << 8; |
27 const uint64_t CompositingReasonOverflowScrollingTouch = UINT6
4_C(1) << 9; | 27 const uint64_t CompositingReasonPositionSticky = UINT6
4_C(1) << 9; |
28 const uint64_t CompositingReasonOverflowScrollingParent = UINT6
4_C(1) << 10; | 28 const uint64_t CompositingReasonOverflowScrollingTouch = UINT6
4_C(1) << 10; |
29 const uint64_t CompositingReasonOutOfFlowClipping = UINT6
4_C(1) << 11; | 29 const uint64_t CompositingReasonOverflowScrollingParent = UINT6
4_C(1) << 11; |
30 const uint64_t CompositingReasonVideoOverlay = UINT6
4_C(1) << 12; | 30 const uint64_t CompositingReasonOutOfFlowClipping = UINT6
4_C(1) << 12; |
31 const uint64_t CompositingReasonWillChangeCompositingHint = UINT6
4_C(1) << 13; | 31 const uint64_t CompositingReasonVideoOverlay = UINT6
4_C(1) << 13; |
32 const uint64_t CompositingReasonBackdropFilter = UINT6
4_C(1) << 14; | 32 const uint64_t CompositingReasonWillChangeCompositingHint = UINT6
4_C(1) << 14; |
| 33 const uint64_t CompositingReasonBackdropFilter = UINT6
4_C(1) << 15; |
33 | 34 |
34 // Overlap reasons that require knowing what's behind you in paint-order before
knowing the answer | 35 // Overlap reasons that require knowing what's behind you in paint-order before
knowing the answer |
35 const uint64_t CompositingReasonAssumedOverlap = UINT6
4_C(1) << 15; | 36 const uint64_t CompositingReasonAssumedOverlap = UINT6
4_C(1) << 16; |
36 const uint64_t CompositingReasonOverlap = UINT6
4_C(1) << 16; | 37 const uint64_t CompositingReasonOverlap = UINT6
4_C(1) << 17; |
37 const uint64_t CompositingReasonNegativeZIndexChildren = UINT6
4_C(1) << 17; | 38 const uint64_t CompositingReasonNegativeZIndexChildren = UINT6
4_C(1) << 18; |
38 const uint64_t CompositingReasonScrollsWithRespectToSquashingLayer = UINT6
4_C(1) << 18; | 39 const uint64_t CompositingReasonScrollsWithRespectToSquashingLayer = UINT6
4_C(1) << 19; |
39 const uint64_t CompositingReasonSquashingSparsityExceeded = UINT6
4_C(1) << 19; | 40 const uint64_t CompositingReasonSquashingSparsityExceeded = UINT6
4_C(1) << 20; |
40 const uint64_t CompositingReasonSquashingClippingContainerMismatch = UINT6
4_C(1) << 20; | 41 const uint64_t CompositingReasonSquashingClippingContainerMismatch = UINT6
4_C(1) << 21; |
41 const uint64_t CompositingReasonSquashingOpacityAncestorMismatch = UINT6
4_C(1) << 21; | 42 const uint64_t CompositingReasonSquashingOpacityAncestorMismatch = UINT6
4_C(1) << 22; |
42 const uint64_t CompositingReasonSquashingTransformAncestorMismatch = UINT6
4_C(1) << 22; | 43 const uint64_t CompositingReasonSquashingTransformAncestorMismatch = UINT6
4_C(1) << 23; |
43 const uint64_t CompositingReasonSquashingFilterMismatch = UINT6
4_C(1) << 23; | 44 const uint64_t CompositingReasonSquashingFilterMismatch = UINT6
4_C(1) << 24; |
44 const uint64_t CompositingReasonSquashingWouldBreakPaintOrder = UINT6
4_C(1) << 24; | 45 const uint64_t CompositingReasonSquashingWouldBreakPaintOrder = UINT6
4_C(1) << 25; |
45 const uint64_t CompositingReasonSquashingVideoIsDisallowed = UINT6
4_C(1) << 25; | 46 const uint64_t CompositingReasonSquashingVideoIsDisallowed = UINT6
4_C(1) << 26; |
46 const uint64_t CompositingReasonSquashedLayerClipsCompositingDescendants = UINT6
4_C(1) << 26; | 47 const uint64_t CompositingReasonSquashedLayerClipsCompositingDescendants = UINT6
4_C(1) << 27; |
47 const uint64_t CompositingReasonSquashingLayoutPartIsDisallowed = UINT6
4_C(1) << 27; | 48 const uint64_t CompositingReasonSquashingLayoutPartIsDisallowed = UINT6
4_C(1) << 28; |
48 const uint64_t CompositingReasonSquashingReflectionIsDisallowed = UINT6
4_C(1) << 28; | 49 const uint64_t CompositingReasonSquashingReflectionIsDisallowed = UINT6
4_C(1) << 29; |
49 const uint64_t CompositingReasonSquashingBlendingIsDisallowed = UINT6
4_C(1) << 29; | 50 const uint64_t CompositingReasonSquashingBlendingIsDisallowed = UINT6
4_C(1) << 30; |
50 const uint64_t CompositingReasonSquashingNearestFixedPositionMismatch = UINT6
4_C(1) << 30; | 51 const uint64_t CompositingReasonSquashingNearestFixedPositionMismatch = UINT6
4_C(1) << 31; |
51 const uint64_t CompositingReasonScrollChildWithCompositedDescendants = UINT6
4_C(1) << 31; | 52 const uint64_t CompositingReasonScrollChildWithCompositedDescendants = UINT6
4_C(1) << 32; |
52 | 53 |
53 // Subtree reasons that require knowing what the status of your subtree is befor
e knowing the answer | 54 // Subtree reasons that require knowing what the status of your subtree is befor
e knowing the answer |
54 const uint64_t CompositingReasonTransformWithCompositedDescendants = UINT6
4_C(1) << 32; | 55 const uint64_t CompositingReasonTransformWithCompositedDescendants = UINT6
4_C(1) << 33; |
55 const uint64_t CompositingReasonOpacityWithCompositedDescendants = UINT6
4_C(1) << 33; | 56 const uint64_t CompositingReasonOpacityWithCompositedDescendants = UINT6
4_C(1) << 34; |
56 const uint64_t CompositingReasonMaskWithCompositedDescendants = UINT6
4_C(1) << 34; | 57 const uint64_t CompositingReasonMaskWithCompositedDescendants = UINT6
4_C(1) << 35; |
57 const uint64_t CompositingReasonReflectionWithCompositedDescendants = UINT6
4_C(1) << 35; | 58 const uint64_t CompositingReasonReflectionWithCompositedDescendants = UINT6
4_C(1) << 36; |
58 const uint64_t CompositingReasonFilterWithCompositedDescendants = UINT6
4_C(1) << 36; | 59 const uint64_t CompositingReasonFilterWithCompositedDescendants = UINT6
4_C(1) << 37; |
59 const uint64_t CompositingReasonBlendingWithCompositedDescendants = UINT6
4_C(1) << 37; | 60 const uint64_t CompositingReasonBlendingWithCompositedDescendants = UINT6
4_C(1) << 38; |
60 const uint64_t CompositingReasonClipsCompositingDescendants = UINT6
4_C(1) << 38; | 61 const uint64_t CompositingReasonClipsCompositingDescendants = UINT6
4_C(1) << 39; |
61 const uint64_t CompositingReasonPerspectiveWith3DDescendants = UINT6
4_C(1) << 39; | 62 const uint64_t CompositingReasonPerspectiveWith3DDescendants = UINT6
4_C(1) << 40; |
62 const uint64_t CompositingReasonPreserve3DWith3DDescendants = UINT6
4_C(1) << 40; | 63 const uint64_t CompositingReasonPreserve3DWith3DDescendants = UINT6
4_C(1) << 41; |
63 const uint64_t CompositingReasonReflectionOfCompositedParent = UINT6
4_C(1) << 41; | 64 const uint64_t CompositingReasonReflectionOfCompositedParent = UINT6
4_C(1) << 42; |
64 const uint64_t CompositingReasonIsolateCompositedDescendants = UINT6
4_C(1) << 42; | 65 const uint64_t CompositingReasonIsolateCompositedDescendants = UINT6
4_C(1) << 43; |
65 | 66 |
66 // The root layer is a special case that may be forced to be a layer, but also i
t needs to be | 67 // The root layer is a special case that may be forced to be a layer, but also i
t needs to be |
67 // a layer if anything else in the subtree is composited. | 68 // a layer if anything else in the subtree is composited. |
68 const uint64_t CompositingReasonRoot = UINT6
4_C(1) << 43; | 69 const uint64_t CompositingReasonRoot = UINT6
4_C(1) << 44; |
69 | 70 |
70 // CompositedLayerMapping internal hierarchy reasons | 71 // CompositedLayerMapping internal hierarchy reasons |
71 const uint64_t CompositingReasonLayerForAncestorClip = UINT6
4_C(1) << 44; | 72 const uint64_t CompositingReasonLayerForAncestorClip = UINT6
4_C(1) << 45; |
72 const uint64_t CompositingReasonLayerForDescendantClip = UINT6
4_C(1) << 45; | 73 const uint64_t CompositingReasonLayerForDescendantClip = UINT6
4_C(1) << 46; |
73 const uint64_t CompositingReasonLayerForPerspective = UINT6
4_C(1) << 46; | 74 const uint64_t CompositingReasonLayerForPerspective = UINT6
4_C(1) << 47; |
74 const uint64_t CompositingReasonLayerForHorizontalScrollbar = UINT6
4_C(1) << 47; | 75 const uint64_t CompositingReasonLayerForHorizontalScrollbar = UINT6
4_C(1) << 48; |
75 const uint64_t CompositingReasonLayerForVerticalScrollbar = UINT6
4_C(1) << 48; | 76 const uint64_t CompositingReasonLayerForVerticalScrollbar = UINT6
4_C(1) << 49; |
76 const uint64_t CompositingReasonLayerForOverflowControlsHost = UINT6
4_C(1) << 49; | 77 const uint64_t CompositingReasonLayerForOverflowControlsHost = UINT6
4_C(1) << 50; |
77 const uint64_t CompositingReasonLayerForScrollCorner = UINT6
4_C(1) << 50; | 78 const uint64_t CompositingReasonLayerForScrollCorner = UINT6
4_C(1) << 51; |
78 const uint64_t CompositingReasonLayerForScrollingContents = UINT6
4_C(1) << 51; | 79 const uint64_t CompositingReasonLayerForScrollingContents = UINT6
4_C(1) << 52; |
79 const uint64_t CompositingReasonLayerForScrollingContainer = UINT6
4_C(1) << 52; | 80 const uint64_t CompositingReasonLayerForScrollingContainer = UINT6
4_C(1) << 53; |
80 const uint64_t CompositingReasonLayerForSquashingContents = UINT6
4_C(1) << 53; | 81 const uint64_t CompositingReasonLayerForSquashingContents = UINT6
4_C(1) << 54; |
81 const uint64_t CompositingReasonLayerForSquashingContainer = UINT6
4_C(1) << 54; | 82 const uint64_t CompositingReasonLayerForSquashingContainer = UINT6
4_C(1) << 55; |
82 const uint64_t CompositingReasonLayerForForeground = UINT6
4_C(1) << 55; | 83 const uint64_t CompositingReasonLayerForForeground = UINT6
4_C(1) << 56; |
83 const uint64_t CompositingReasonLayerForBackground = UINT6
4_C(1) << 56; | 84 const uint64_t CompositingReasonLayerForBackground = UINT6
4_C(1) << 57; |
84 const uint64_t CompositingReasonLayerForMask = UINT6
4_C(1) << 57; | 85 const uint64_t CompositingReasonLayerForMask = UINT6
4_C(1) << 58; |
85 const uint64_t CompositingReasonLayerForClippingMask = UINT6
4_C(1) << 58; | 86 const uint64_t CompositingReasonLayerForClippingMask = UINT6
4_C(1) << 59; |
86 const uint64_t CompositingReasonLayerForScrollingBlockSelection = UINT6
4_C(1) << 59; | 87 const uint64_t CompositingReasonLayerForScrollingBlockSelection = UINT6
4_C(1) << 60; |
87 | 88 |
88 // Composited elements with inline transforms trigger assumed overlap so that | 89 // Composited elements with inline transforms trigger assumed overlap so that |
89 // we can update their transforms quickly. | 90 // we can update their transforms quickly. |
90 const uint64_t CompositingReasonInlineTransform = UINT6
4_C(1) << 60; | 91 const uint64_t CompositingReasonInlineTransform = UINT6
4_C(1) << 61; |
91 | 92 |
92 const uint64_t CompositingReasonCompositorProxy = UINT6
4_C(1) << 61; | 93 const uint64_t CompositingReasonCompositorProxy = UINT6
4_C(1) << 62; |
93 | 94 |
94 // Various combinations of compositing reasons are defined here also, for more i
ntutive and faster bitwise logic. | 95 // Various combinations of compositing reasons are defined here also, for more i
ntutive and faster bitwise logic. |
95 const uint64_t CompositingReasonComboAllDirectReasons = | 96 const uint64_t CompositingReasonComboAllDirectReasons = |
96 CompositingReason3DTransform | 97 CompositingReason3DTransform |
97 | CompositingReasonVideo | 98 | CompositingReasonVideo |
98 | CompositingReasonCanvas | 99 | CompositingReasonCanvas |
99 | CompositingReasonPlugin | 100 | CompositingReasonPlugin |
100 | CompositingReasonIFrame | 101 | CompositingReasonIFrame |
101 | CompositingReasonBackfaceVisibilityHidden | 102 | CompositingReasonBackfaceVisibilityHidden |
102 | CompositingReasonActiveAnimation | 103 | CompositingReasonActiveAnimation |
103 | CompositingReasonTransitionProperty | 104 | CompositingReasonTransitionProperty |
104 | CompositingReasonPositionFixed | 105 | CompositingReasonPositionFixed |
| 106 | CompositingReasonPositionSticky |
105 | CompositingReasonOverflowScrollingTouch | 107 | CompositingReasonOverflowScrollingTouch |
106 | CompositingReasonOverflowScrollingParent | 108 | CompositingReasonOverflowScrollingParent |
107 | CompositingReasonOutOfFlowClipping | 109 | CompositingReasonOutOfFlowClipping |
108 | CompositingReasonVideoOverlay | 110 | CompositingReasonVideoOverlay |
109 | CompositingReasonWillChangeCompositingHint | 111 | CompositingReasonWillChangeCompositingHint |
110 | CompositingReasonCompositorProxy | 112 | CompositingReasonCompositorProxy |
111 | CompositingReasonBackdropFilter; | 113 | CompositingReasonBackdropFilter; |
112 | 114 |
113 const uint64_t CompositingReasonComboAllDirectStyleDeterminedReasons = | 115 const uint64_t CompositingReasonComboAllDirectStyleDeterminedReasons = |
114 CompositingReason3DTransform | 116 CompositingReason3DTransform |
(...skipping 76 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
191 const char* shortName; | 193 const char* shortName; |
192 const char* description; | 194 const char* description; |
193 }; | 195 }; |
194 | 196 |
195 PLATFORM_EXPORT extern const CompositingReasonStringMap kCompositingReasonString
Map[]; | 197 PLATFORM_EXPORT extern const CompositingReasonStringMap kCompositingReasonString
Map[]; |
196 PLATFORM_EXPORT extern size_t kNumberOfCompositingReasons; | 198 PLATFORM_EXPORT extern size_t kNumberOfCompositingReasons; |
197 | 199 |
198 } // namespace blink | 200 } // namespace blink |
199 | 201 |
200 #endif // CompositingReasons_h | 202 #endif // CompositingReasons_h |
OLD | NEW |