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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 DrawingDisplayItem_h | 5 #ifndef DrawingDisplayItem_h |
6 #define DrawingDisplayItem_h | 6 #define DrawingDisplayItem_h |
7 | 7 |
8 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
9 #include "platform/PlatformExport.h" | 9 #include "platform/PlatformExport.h" |
10 #include "platform/RuntimeEnabledFeatures.h" | 10 #include "platform/RuntimeEnabledFeatures.h" |
11 #include "platform/geometry/FloatPoint.h" | 11 #include "platform/geometry/FloatRect.h" |
12 #include "platform/graphics/paint/DisplayItem.h" | 12 #include "platform/graphics/paint/DisplayItem.h" |
13 #include "platform/graphics/paint/PaintRecord.h" | 13 #include "platform/graphics/paint/PaintRecord.h" |
14 #include "third_party/skia/include/core/SkRefCnt.h" | 14 #include "third_party/skia/include/core/SkRefCnt.h" |
15 | 15 |
16 namespace blink { | 16 namespace blink { |
17 | 17 |
| 18 // DrawingDisplayItem contains recorded painting operations which can be |
| 19 // replayed to produce a rastered output. |
| 20 // |
| 21 // This class has two notions of the bounds around the content that was recorded |
| 22 // and will be produced by the item. The first is the |record_bounds| which |
| 23 // describes the bounds of all content in the |record| in the space of the |
| 24 // record. The second is the |visual_rect| which should describe the same thing, |
| 25 // but takes into account transforms and clips that would apply to the |
| 26 // PaintRecord, and is in the space of the DisplayItemList. This allows the |
| 27 // visual_rect to be compared between DrawingDisplayItems, and to give bounds |
| 28 // around what the user can actually see from the PaintRecord. |
18 class PLATFORM_EXPORT DrawingDisplayItem final : public DisplayItem { | 29 class PLATFORM_EXPORT DrawingDisplayItem final : public DisplayItem { |
19 public: | 30 public: |
20 DISABLE_CFI_PERF | 31 DISABLE_CFI_PERF |
21 DrawingDisplayItem(const DisplayItemClient& client, | 32 DrawingDisplayItem(const DisplayItemClient& client, |
22 Type type, | 33 Type type, |
23 sk_sp<const PaintRecord> record, | 34 sk_sp<const PaintRecord> record, |
| 35 const FloatRect& record_bounds, |
24 bool known_to_be_opaque = false) | 36 bool known_to_be_opaque = false) |
25 : DisplayItem(client, type, sizeof(*this)), | 37 : DisplayItem(client, type, sizeof(*this)), |
26 record_(record && record->size() ? std::move(record) : nullptr), | 38 record_(record && record->size() ? std::move(record) : nullptr), |
| 39 record_bounds_(record_bounds), |
27 known_to_be_opaque_(known_to_be_opaque) { | 40 known_to_be_opaque_(known_to_be_opaque) { |
28 DCHECK(IsDrawingType(type)); | 41 DCHECK(IsDrawingType(type)); |
29 } | 42 } |
30 | 43 |
31 void Replay(GraphicsContext&) const override; | 44 void Replay(GraphicsContext&) const override; |
32 void AppendToWebDisplayItemList(const IntRect&, | 45 void AppendToWebDisplayItemList(const IntRect& visual_rect, |
33 WebDisplayItemList*) const override; | 46 WebDisplayItemList*) const override; |
34 bool DrawsContent() const override; | 47 bool DrawsContent() const override; |
35 | 48 |
36 const sk_sp<const PaintRecord>& GetPaintRecord() const { return record_; } | 49 const sk_sp<const PaintRecord>& GetPaintRecord() const { return record_; } |
| 50 // This rect is described in the coordinate space relative to the PaintRecord |
| 51 // whose bounds it describes. |
| 52 FloatRect GetPaintRecordBounds() const { return record_bounds_; } |
37 | 53 |
38 bool KnownToBeOpaque() const { | 54 bool KnownToBeOpaque() const { |
39 DCHECK(RuntimeEnabledFeatures::slimmingPaintV2Enabled()); | 55 DCHECK(RuntimeEnabledFeatures::slimmingPaintV2Enabled()); |
40 return known_to_be_opaque_; | 56 return known_to_be_opaque_; |
41 } | 57 } |
42 | 58 |
43 int NumberOfSlowPaths() const override; | 59 int NumberOfSlowPaths() const override; |
44 | 60 |
45 private: | 61 private: |
46 #ifndef NDEBUG | 62 #ifndef NDEBUG |
47 void DumpPropertiesAsDebugString(WTF::StringBuilder&) const override; | 63 void DumpPropertiesAsDebugString(WTF::StringBuilder&) const override; |
48 #endif | 64 #endif |
49 bool Equals(const DisplayItem& other) const final; | 65 bool Equals(const DisplayItem& other) const final; |
50 | 66 |
51 sk_sp<const PaintRecord> record_; | 67 sk_sp<const PaintRecord> record_; |
| 68 FloatRect record_bounds_; |
52 | 69 |
53 // True if there are no transparent areas. Only used for SlimmingPaintV2. | 70 // True if there are no transparent areas. Only used for SlimmingPaintV2. |
54 const bool known_to_be_opaque_; | 71 const bool known_to_be_opaque_; |
55 }; | 72 }; |
56 | 73 |
57 } // namespace blink | 74 } // namespace blink |
58 | 75 |
59 #endif // DrawingDisplayItem_h | 76 #endif // DrawingDisplayItem_h |
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