1 /*
2  * Copyright (C) 2013 Google Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *
8  *     * Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  *     * Redistributions in binary form must reproduce the above
11  * copyright notice, this list of conditions and the following disclaimer
12  * in the documentation and/or other materials provided with the
13  * distribution.
14  *     * Neither the name of Google Inc. nor the names of its
15  * contributors may be used to endorse or promote products derived from
16  * this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30 
31 #ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_LOGGING_CANVAS_H_
32 #define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_LOGGING_CANVAS_H_
33 
34 #include <memory>
35 #include "third_party/blink/renderer/platform/graphics/intercepting_canvas.h"
36 #include "third_party/blink/renderer/platform/json/json_values.h"
37 
38 namespace blink {
39 
40 class LoggingCanvas : public InterceptingCanvasBase {
41  public:
42   LoggingCanvas();
43 
44   // Returns a snapshot of the current log data.
45   std::unique_ptr<JSONArray> Log();
46 
47   void onDrawPaint(const SkPaint&) override;
48   void onDrawPoints(PointMode,
49                     size_t count,
50                     const SkPoint pts[],
51                     const SkPaint&) override;
52   void onDrawRect(const SkRect&, const SkPaint&) override;
53   void onDrawOval(const SkRect&, const SkPaint&) override;
54   void onDrawRRect(const SkRRect&, const SkPaint&) override;
55   void onDrawPath(const SkPath&, const SkPaint&) override;
56   void onDrawImage(const SkImage*, SkScalar, SkScalar, const SkPaint*) override;
57   void onDrawImageRect(const SkImage*,
58                        const SkRect* src,
59                        const SkRect& dst,
60                        const SkPaint*,
61                        SrcRectConstraint) override;
62   void onDrawVerticesObject(const SkVertices*,
63                             SkBlendMode bmode,
64                             const SkPaint&) override;
65 
66   void onDrawDRRect(const SkRRect& outer,
67                     const SkRRect& inner,
68                     const SkPaint&) override;
69   void onDrawTextBlob(const SkTextBlob*,
70                       SkScalar x,
71                       SkScalar y,
72                       const SkPaint&) override;
73   void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
74   void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
75   void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
76   void onClipRegion(const SkRegion&, SkClipOp) override;
77   void onDrawPicture(const SkPicture*,
78                      const SkMatrix*,
79                      const SkPaint*) override;
80   void didSetMatrix(const SkMatrix&) override;
81   void didConcat44(const SkScalar[16]) override;
82   void didConcat(const SkMatrix&) override;
83   void didScale(SkScalar, SkScalar) override;
84   void didTranslate(SkScalar, SkScalar) override;
85   void willSave() override;
86   SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
87   void willRestore() override;
88 
89  private:
90   friend class AutoLogger;
91 
92   std::unique_ptr<JSONArray> log_;
93 };
94 
95 PLATFORM_EXPORT std::unique_ptr<JSONArray> RecordAsJSON(const PaintRecord&);
96 PLATFORM_EXPORT String RecordAsDebugString(const PaintRecord&);
97 PLATFORM_EXPORT void ShowPaintRecord(const PaintRecord&);
98 PLATFORM_EXPORT std::unique_ptr<JSONArray> SkPictureAsJSON(const SkPicture&);
99 PLATFORM_EXPORT String SkPictureAsDebugString(const SkPicture&);
100 PLATFORM_EXPORT void ShowSkPicture(const SkPicture&);
101 
102 }  // namespace blink
103 
104 #endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_LOGGING_CANVAS_H_
105