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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 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 PaintChunker_h | 5 #ifndef PaintChunker_h |
6 #define PaintChunker_h | 6 #define PaintChunker_h |
7 | 7 |
8 #include "platform/PlatformExport.h" | 8 #include "platform/PlatformExport.h" |
9 #include "platform/graphics/paint/DisplayItem.h" | 9 #include "platform/graphics/paint/DisplayItem.h" |
10 #include "platform/graphics/paint/PaintChunk.h" | 10 #include "platform/graphics/paint/PaintChunk.h" |
11 #include "platform/graphics/paint/PaintChunkProperties.h" | 11 #include "platform/graphics/paint/PaintChunkProperties.h" |
12 #include "wtf/Allocator.h" | 12 #include "wtf/Allocator.h" |
13 #include "wtf/AutoReset.h" | |
14 #include "wtf/Noncopyable.h" | 13 #include "wtf/Noncopyable.h" |
15 #include "wtf/Vector.h" | 14 #include "wtf/Vector.h" |
16 | 15 |
17 namespace blink { | 16 namespace blink { |
18 | 17 |
19 // Accepts information about changes to |PaintChunkProperties| as drawings are | 18 // Accepts information about changes to |PaintChunkProperties| as drawings are |
20 // accumulated, and produces a series of paint chunks: contiguous ranges of the | 19 // accumulated, and produces a series of paint chunks: contiguous ranges of the |
21 // display list with identical |PaintChunkProperties|. | 20 // display list with identical |PaintChunkProperties|. |
22 class PLATFORM_EXPORT PaintChunker final { | 21 class PLATFORM_EXPORT PaintChunker final { |
23 DISALLOW_NEW(); | 22 DISALLOW_NEW(); |
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68 // Item requires its own paint chunk. | 67 // Item requires its own paint chunk. |
69 RequiresSeparateChunk, | 68 RequiresSeparateChunk, |
70 }; | 69 }; |
71 | 70 |
72 Vector<PaintChunk> m_chunks; | 71 Vector<PaintChunk> m_chunks; |
73 Vector<ItemBehavior> m_chunkBehavior; | 72 Vector<ItemBehavior> m_chunkBehavior; |
74 Optional<PaintChunk::Id> m_currentChunkId; | 73 Optional<PaintChunk::Id> m_currentChunkId; |
75 PaintChunkProperties m_currentProperties; | 74 PaintChunkProperties m_currentProperties; |
76 }; | 75 }; |
77 | 76 |
78 #if DCHECK_IS_ON() | |
79 class DisableNullPaintPropertyChecks { | |
80 STACK_ALLOCATED(); | |
81 WTF_MAKE_NONCOPYABLE(DisableNullPaintPropertyChecks); | |
82 | |
83 public: | |
84 DisableNullPaintPropertyChecks(); | |
85 | |
86 private: | |
87 AutoReset<bool> m_disabler; | |
88 }; | |
89 #endif // DCHECK_IS_ON() | |
90 | |
91 } // namespace blink | 77 } // namespace blink |
92 | 78 |
93 #endif // PaintChunker_h | 79 #endif // PaintChunker_h |
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