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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 "wtf/MathExtras.h" | 8 #include "wtf/MathExtras.h" |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
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22 const uint64_t CompositingReasonBackfaceVisibilityHidden = UINT64_
C(1) << 5; | 22 const uint64_t CompositingReasonBackfaceVisibilityHidden = UINT64_
C(1) << 5; |
23 const uint64_t CompositingReasonActiveAnimation = UINT64_
C(1) << 6; | 23 const uint64_t CompositingReasonActiveAnimation = UINT64_
C(1) << 6; |
24 const uint64_t CompositingReasonTransitionProperty = UINT64_
C(1) << 7; | 24 const uint64_t CompositingReasonTransitionProperty = UINT64_
C(1) << 7; |
25 const uint64_t CompositingReasonFilters = UINT64_
C(1) << 8; | 25 const uint64_t CompositingReasonFilters = UINT64_
C(1) << 8; |
26 const uint64_t CompositingReasonPositionFixed = UINT64_
C(1) << 9; | 26 const uint64_t CompositingReasonPositionFixed = UINT64_
C(1) << 9; |
27 const uint64_t CompositingReasonPositionSticky = UINT64_
C(1) << 10; | 27 const uint64_t CompositingReasonPositionSticky = UINT64_
C(1) << 10; |
28 const uint64_t CompositingReasonOverflowScrollingTouch = UINT64_
C(1) << 11; | 28 const uint64_t CompositingReasonOverflowScrollingTouch = UINT64_
C(1) << 11; |
29 const uint64_t CompositingReasonOverflowScrollingParent = UINT64_
C(1) << 12; | 29 const uint64_t CompositingReasonOverflowScrollingParent = UINT64_
C(1) << 12; |
30 const uint64_t CompositingReasonOutOfFlowClipping = UINT64_
C(1) << 13; | 30 const uint64_t CompositingReasonOutOfFlowClipping = UINT64_
C(1) << 13; |
31 const uint64_t CompositingReasonVideoOverlay = UINT64_
C(1) << 14; | 31 const uint64_t CompositingReasonVideoOverlay = UINT64_
C(1) << 14; |
32 const uint64_t CompositingReasonWillChange = UINT64_
C(1) << 15; | 32 const uint64_t CompositingReasonWillChangeCompositingHint = UINT64_
C(1) << 15; |
| 33 const uint64_t CompositingReasonWillChangeGpuRasterizationHint = UINT64_
C(1) << 16; |
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 = UINT64_
C(1) << 16; | 36 const uint64_t CompositingReasonAssumedOverlap = UINT64_
C(1) << 17; |
36 const uint64_t CompositingReasonOverlap = UINT64_
C(1) << 17; | 37 const uint64_t CompositingReasonOverlap = UINT64_
C(1) << 18; |
37 const uint64_t CompositingReasonNegativeZIndexChildren = UINT64_
C(1) << 18; | 38 const uint64_t CompositingReasonNegativeZIndexChildren = UINT64_
C(1) << 19; |
38 const uint64_t CompositingReasonNoSquashingTargetFound = UINT64_
C(1) << 19; | 39 const uint64_t CompositingReasonNoSquashingTargetFound = UINT64_
C(1) << 20; |
39 | 40 |
40 // Subtree reasons that require knowing what the status of your subtree is befor
e knowing the answer | 41 // Subtree reasons that require knowing what the status of your subtree is befor
e knowing the answer |
41 const uint64_t CompositingReasonTransformWithCompositedDescendants = UINT64_
C(1) << 20; | 42 const uint64_t CompositingReasonTransformWithCompositedDescendants = UINT64_
C(1) << 21; |
42 const uint64_t CompositingReasonOpacityWithCompositedDescendants = UINT64_
C(1) << 21; | 43 const uint64_t CompositingReasonOpacityWithCompositedDescendants = UINT64_
C(1) << 22; |
43 const uint64_t CompositingReasonMaskWithCompositedDescendants = UINT64_
C(1) << 22; | 44 const uint64_t CompositingReasonMaskWithCompositedDescendants = UINT64_
C(1) << 23; |
44 const uint64_t CompositingReasonReflectionWithCompositedDescendants = UINT64_
C(1) << 23; | 45 const uint64_t CompositingReasonReflectionWithCompositedDescendants = UINT64_
C(1) << 24; |
45 const uint64_t CompositingReasonFilterWithCompositedDescendants = UINT64_
C(1) << 24; | 46 const uint64_t CompositingReasonFilterWithCompositedDescendants = UINT64_
C(1) << 25; |
46 const uint64_t CompositingReasonBlendingWithCompositedDescendants = UINT64_
C(1) << 25; | 47 const uint64_t CompositingReasonBlendingWithCompositedDescendants = UINT64_
C(1) << 26; |
47 const uint64_t CompositingReasonClipsCompositingDescendants = UINT64_
C(1) << 26; | 48 const uint64_t CompositingReasonClipsCompositingDescendants = UINT64_
C(1) << 27; |
48 const uint64_t CompositingReasonPerspectiveWith3DDescendants = UINT64_
C(1) << 27; | 49 const uint64_t CompositingReasonPerspectiveWith3DDescendants = UINT64_
C(1) << 28; |
49 const uint64_t CompositingReasonPreserve3DWith3DDescendants = UINT64_
C(1) << 28; | 50 const uint64_t CompositingReasonPreserve3DWith3DDescendants = UINT64_
C(1) << 29; |
50 const uint64_t CompositingReasonReflectionOfCompositedParent = UINT64_
C(1) << 29; | 51 const uint64_t CompositingReasonReflectionOfCompositedParent = UINT64_
C(1) << 30; |
51 const uint64_t CompositingReasonIsolateCompositedDescendants = UINT64_
C(1) << 30; | 52 const uint64_t CompositingReasonIsolateCompositedDescendants = UINT64_
C(1) << 31; |
52 | 53 |
53 // The root layer is a special case that may be forced to be a layer, but also i
t needs to be | 54 // The root layer is a special case that may be forced to be a layer, but also i
t needs to be |
54 // a layer if anything else in the subtree is composited. | 55 // a layer if anything else in the subtree is composited. |
55 const uint64_t CompositingReasonRoot = UINT64_
C(1) << 31; | 56 const uint64_t CompositingReasonRoot = UINT64_
C(1) << 32; |
56 | 57 |
57 // CompositedLayerMapping internal hierarchy reasons | 58 // CompositedLayerMapping internal hierarchy reasons |
58 const uint64_t CompositingReasonLayerForAncestorClip = UINT64_
C(1) << 32; | 59 const uint64_t CompositingReasonLayerForAncestorClip = UINT64_
C(1) << 33; |
59 const uint64_t CompositingReasonLayerForDescendantClip = UINT64_
C(1) << 33; | 60 const uint64_t CompositingReasonLayerForDescendantClip = UINT64_
C(1) << 34; |
60 const uint64_t CompositingReasonLayerForPerspective = UINT64_
C(1) << 34; | 61 const uint64_t CompositingReasonLayerForPerspective = UINT64_
C(1) << 35; |
61 const uint64_t CompositingReasonLayerForHorizontalScrollbar = UINT64_
C(1) << 35; | 62 const uint64_t CompositingReasonLayerForHorizontalScrollbar = UINT64_
C(1) << 36; |
62 const uint64_t CompositingReasonLayerForVerticalScrollbar = UINT64_
C(1) << 36; | 63 const uint64_t CompositingReasonLayerForVerticalScrollbar = UINT64_
C(1) << 37; |
63 const uint64_t CompositingReasonLayerForScrollCorner = UINT64_
C(1) << 37; | 64 const uint64_t CompositingReasonLayerForScrollCorner = UINT64_
C(1) << 38; |
64 const uint64_t CompositingReasonLayerForScrollingContents = UINT64_
C(1) << 38; | 65 const uint64_t CompositingReasonLayerForScrollingContents = UINT64_
C(1) << 39; |
65 const uint64_t CompositingReasonLayerForScrollingContainer = UINT64_
C(1) << 39; | 66 const uint64_t CompositingReasonLayerForScrollingContainer = UINT64_
C(1) << 40; |
66 const uint64_t CompositingReasonLayerForSquashingContents = UINT64_
C(1) << 40; | 67 const uint64_t CompositingReasonLayerForSquashingContents = UINT64_
C(1) << 41; |
67 const uint64_t CompositingReasonLayerForSquashingContainer = UINT64_
C(1) << 41; | 68 const uint64_t CompositingReasonLayerForSquashingContainer = UINT64_
C(1) << 42; |
68 const uint64_t CompositingReasonLayerForForeground = UINT64_
C(1) << 42; | 69 const uint64_t CompositingReasonLayerForForeground = UINT64_
C(1) << 43; |
69 const uint64_t CompositingReasonLayerForBackground = UINT64_
C(1) << 43; | 70 const uint64_t CompositingReasonLayerForBackground = UINT64_
C(1) << 44; |
70 const uint64_t CompositingReasonLayerForMask = UINT64_
C(1) << 44; | 71 const uint64_t CompositingReasonLayerForMask = UINT64_
C(1) << 45; |
71 const uint64_t CompositingReasonLayerForClippingMask = UINT64_
C(1) << 45; | 72 const uint64_t CompositingReasonLayerForClippingMask = UINT64_
C(1) << 46; |
72 | 73 |
73 // Various combinations of compositing reasons are defined here also, for more i
ntutive and faster bitwise logic. | 74 // Various combinations of compositing reasons are defined here also, for more i
ntutive and faster bitwise logic. |
74 const uint64_t CompositingReasonComboAllDirectReasons = | 75 const uint64_t CompositingReasonComboAllDirectReasons = |
75 CompositingReason3DTransform | 76 CompositingReason3DTransform |
76 | CompositingReasonVideo | 77 | CompositingReasonVideo |
77 | CompositingReasonCanvas | 78 | CompositingReasonCanvas |
78 | CompositingReasonPlugin | 79 | CompositingReasonPlugin |
79 | CompositingReasonIFrame | 80 | CompositingReasonIFrame |
80 | CompositingReasonBackfaceVisibilityHidden | 81 | CompositingReasonBackfaceVisibilityHidden |
81 | CompositingReasonActiveAnimation | 82 | CompositingReasonActiveAnimation |
82 | CompositingReasonTransitionProperty | 83 | CompositingReasonTransitionProperty |
83 | CompositingReasonFilters | 84 | CompositingReasonFilters |
84 | CompositingReasonPositionFixed | 85 | CompositingReasonPositionFixed |
85 | CompositingReasonPositionSticky | 86 | CompositingReasonPositionSticky |
86 | CompositingReasonOverflowScrollingTouch | 87 | CompositingReasonOverflowScrollingTouch |
87 | CompositingReasonOverflowScrollingParent | 88 | CompositingReasonOverflowScrollingParent |
88 | CompositingReasonOutOfFlowClipping | 89 | CompositingReasonOutOfFlowClipping |
89 | CompositingReasonVideoOverlay | 90 | CompositingReasonVideoOverlay |
90 | CompositingReasonWillChange; | 91 | CompositingReasonWillChangeCompositingHint |
| 92 | CompositingReasonWillChangeGpuRasterizationHint; |
91 | 93 |
92 const uint64_t CompositingReasonComboAllStyleDeterminedReasons = | 94 const uint64_t CompositingReasonComboAllStyleDeterminedReasons = |
93 CompositingReason3DTransform | 95 CompositingReason3DTransform |
94 | CompositingReasonBackfaceVisibilityHidden | 96 | CompositingReasonBackfaceVisibilityHidden |
95 | CompositingReasonActiveAnimation | 97 | CompositingReasonActiveAnimation |
96 | CompositingReasonTransitionProperty | 98 | CompositingReasonTransitionProperty |
97 | CompositingReasonFilters | 99 | CompositingReasonFilters |
98 | CompositingReasonWillChange; | 100 | CompositingReasonWillChangeCompositingHint |
| 101 | CompositingReasonWillChangeGpuRasterizationHint; |
99 | 102 |
100 const uint64_t CompositingReasonComboReasonsThatRequireOwnBacking = | 103 const uint64_t CompositingReasonComboReasonsThatRequireOwnBacking = |
101 CompositingReasonComboAllDirectReasons | 104 CompositingReasonComboAllDirectReasons |
102 | CompositingReasonOverlap | 105 | CompositingReasonOverlap |
103 | CompositingReasonAssumedOverlap | 106 | CompositingReasonAssumedOverlap |
104 | CompositingReasonNegativeZIndexChildren | 107 | CompositingReasonNegativeZIndexChildren |
105 | CompositingReasonNoSquashingTargetFound | 108 | CompositingReasonNoSquashingTargetFound |
106 | CompositingReasonTransformWithCompositedDescendants | 109 | CompositingReasonTransformWithCompositedDescendants |
107 | CompositingReasonOpacityWithCompositedDescendants | 110 | CompositingReasonOpacityWithCompositedDescendants |
108 | CompositingReasonMaskWithCompositedDescendants | 111 | CompositingReasonMaskWithCompositedDescendants |
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180 "Is a scrollable overflow element" }, | 183 "Is a scrollable overflow element" }, |
181 { CompositingReasonOverflowScrollingParent, | 184 { CompositingReasonOverflowScrollingParent, |
182 "overflowScrollingParent", | 185 "overflowScrollingParent", |
183 "Scroll parent is not an ancestor" }, | 186 "Scroll parent is not an ancestor" }, |
184 { CompositingReasonOutOfFlowClipping, | 187 { CompositingReasonOutOfFlowClipping, |
185 "outOfFlowClipping", | 188 "outOfFlowClipping", |
186 "Has clipping ancestor" }, | 189 "Has clipping ancestor" }, |
187 { CompositingReasonVideoOverlay, | 190 { CompositingReasonVideoOverlay, |
188 "videoOverlay", | 191 "videoOverlay", |
189 "Is overlay controls for video" }, | 192 "Is overlay controls for video" }, |
190 { CompositingReasonWillChange, | 193 { CompositingReasonWillChangeCompositingHint, |
191 "willChange", | 194 "willChange", |
192 "Has a will-change compositing hint" }, | 195 "Has a will-change compositing hint" }, |
| 196 { CompositingReasonWillChangeGpuRasterizationHint, |
| 197 "willChange", |
| 198 "Has a will-change GPU-rasterization hint" }, |
193 { CompositingReasonAssumedOverlap, | 199 { CompositingReasonAssumedOverlap, |
194 "assumedOverlap", | 200 "assumedOverlap", |
195 "Might overlap other composited content" }, | 201 "Might overlap other composited content" }, |
196 { CompositingReasonOverlap, | 202 { CompositingReasonOverlap, |
197 "overlap", | 203 "overlap", |
198 "Overlaps other composited content" }, | 204 "Overlaps other composited content" }, |
199 { CompositingReasonNegativeZIndexChildren, | 205 { CompositingReasonNegativeZIndexChildren, |
200 "negativeZIndexChildren", | 206 "negativeZIndexChildren", |
201 "Parent with composited negative z-index content" }, | 207 "Parent with composited negative z-index content" }, |
202 { CompositingReasonNoSquashingTargetFound, | 208 { CompositingReasonNoSquashingTargetFound, |
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278 "layerForMask", | 284 "layerForMask", |
279 "Secondary layer, to contain the mask contents" }, | 285 "Secondary layer, to contain the mask contents" }, |
280 { CompositingReasonLayerForClippingMask, | 286 { CompositingReasonLayerForClippingMask, |
281 "layerForClippingMask", | 287 "layerForClippingMask", |
282 "Secondary layer, for clipping mask" } | 288 "Secondary layer, for clipping mask" } |
283 }; | 289 }; |
284 | 290 |
285 } // namespace WebCore | 291 } // namespace WebCore |
286 | 292 |
287 #endif // CompositingReasons_h | 293 #endif // CompositingReasons_h |
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