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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 #include "platform/graphics/paint/DrawingDisplayItem.h" | 5 #include "platform/graphics/paint/DrawingDisplayItem.h" |
6 | 6 |
7 #include "platform/graphics/GraphicsContext.h" | 7 #include "platform/graphics/GraphicsContext.h" |
8 #include "platform/graphics/paint/PaintCanvas.h" | 8 #include "platform/graphics/paint/PaintCanvas.h" |
9 #include "public/platform/WebDisplayItemList.h" | 9 #include "public/platform/WebDisplayItemList.h" |
10 #include "third_party/skia/include/core/SkBitmap.h" | 10 #include "third_party/skia/include/core/SkBitmap.h" |
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76 } | 76 } |
77 | 77 |
78 static bool BitmapsEqual(sk_sp<const PaintRecord> record1, | 78 static bool BitmapsEqual(sk_sp<const PaintRecord> record1, |
79 sk_sp<const PaintRecord> record2) { | 79 sk_sp<const PaintRecord> record2) { |
80 SkRect rect = record1->cullRect(); | 80 SkRect rect = record1->cullRect(); |
81 if (rect != record2->cullRect()) | 81 if (rect != record2->cullRect()) |
82 return false; | 82 return false; |
83 | 83 |
84 SkBitmap bitmap1 = RecordToBitmap(record1); | 84 SkBitmap bitmap1 = RecordToBitmap(record1); |
85 SkBitmap bitmap2 = RecordToBitmap(record2); | 85 SkBitmap bitmap2 = RecordToBitmap(record2); |
86 bitmap1.lockPixels(); | |
87 bitmap2.lockPixels(); | |
88 int mismatch_count = 0; | 86 int mismatch_count = 0; |
89 const int kMaxMismatches = 10; | 87 const int kMaxMismatches = 10; |
90 for (int y = 0; y < rect.height() && mismatch_count < kMaxMismatches; ++y) { | 88 for (int y = 0; y < rect.height() && mismatch_count < kMaxMismatches; ++y) { |
91 for (int x = 0; x < rect.width() && mismatch_count < kMaxMismatches; ++x) { | 89 for (int x = 0; x < rect.width() && mismatch_count < kMaxMismatches; ++x) { |
92 SkColor pixel1 = bitmap1.getColor(x, y); | 90 SkColor pixel1 = bitmap1.getColor(x, y); |
93 SkColor pixel2 = bitmap2.getColor(x, y); | 91 SkColor pixel2 = bitmap2.getColor(x, y); |
94 if (pixel1 != pixel2) { | 92 if (pixel1 != pixel2) { |
95 LOG(ERROR) << "x=" << x << " y=" << y << " " << std::hex << pixel1 | 93 LOG(ERROR) << "x=" << x << " y=" << y << " " << std::hex << pixel1 |
96 << " vs " << std::hex << pixel2; | 94 << " vs " << std::hex << pixel2; |
97 ++mismatch_count; | 95 ++mismatch_count; |
98 } | 96 } |
99 } | 97 } |
100 } | 98 } |
101 bitmap1.unlockPixels(); | |
102 bitmap2.unlockPixels(); | |
103 return !mismatch_count; | 99 return !mismatch_count; |
104 } | 100 } |
105 | 101 |
106 bool DrawingDisplayItem::Equals(const DisplayItem& other) const { | 102 bool DrawingDisplayItem::Equals(const DisplayItem& other) const { |
107 if (!DisplayItem::Equals(other)) | 103 if (!DisplayItem::Equals(other)) |
108 return false; | 104 return false; |
109 | 105 |
110 const sk_sp<const PaintRecord>& record = this->GetPaintRecord(); | 106 const sk_sp<const PaintRecord>& record = this->GetPaintRecord(); |
111 const sk_sp<const PaintRecord>& other_record = | 107 const sk_sp<const PaintRecord>& other_record = |
112 static_cast<const DrawingDisplayItem&>(other).GetPaintRecord(); | 108 static_cast<const DrawingDisplayItem&>(other).GetPaintRecord(); |
113 | 109 |
114 if (!record && !other_record) | 110 if (!record && !other_record) |
115 return true; | 111 return true; |
116 if (!record || !other_record) | 112 if (!record || !other_record) |
117 return false; | 113 return false; |
118 | 114 |
119 if (RecordsEqual(record, other_record)) | 115 if (RecordsEqual(record, other_record)) |
120 return true; | 116 return true; |
121 | 117 |
122 // Sometimes the client may produce different records for the same visual | 118 // Sometimes the client may produce different records for the same visual |
123 // result, which should be treated as equal. | 119 // result, which should be treated as equal. |
124 return BitmapsEqual(std::move(record), std::move(other_record)); | 120 return BitmapsEqual(std::move(record), std::move(other_record)); |
125 } | 121 } |
126 | 122 |
127 } // namespace blink | 123 } // namespace blink |
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