1// Copyright (c) 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CONTENT_RENDERER_SKIA_BENCHMARKING_EXTENSION_H_
6#define CONTENT_RENDERER_SKIA_BENCHMARKING_EXTENSION_H_
7
8#include "base/basictypes.h"
9#include "gin/wrappable.h"
10
11namespace blink {
12class WebFrame;
13}
14
15namespace gin {
16class Arguments;
17}
18
19namespace content {
20
21class SkiaBenchmarking : public gin::Wrappable<SkiaBenchmarking> {
22 public:
23  static gin::WrapperInfo kWrapperInfo;
24  static void Install(blink::WebFrame* frame);
25
26  // Wrapper around SkGraphics::Init that can be invoked multiple times.
27  static void Initialize();
28
29 private:
30  SkiaBenchmarking();
31  virtual ~SkiaBenchmarking();
32
33  // gin::Wrappable.
34  virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
35      v8::Isolate* isolate) OVERRIDE;
36
37  // Rasterizes a Picture JSON-encoded by cc::Picture::AsValue().
38  //
39  // Takes a JSON-encoded cc::Picture and optionally rasterization parameters:
40  //   {
41  //     'scale':    {Number},
42  //     'stop':     {Number},
43  //     'overdraw': {Boolean},
44  //     'clip':     [Number, Number, Number, Number]
45  //   }
46  //
47  // Returns
48  //  {
49  //    'width':    {Number},
50  //    'height':   {Number},
51  //    'data':     {ArrayBuffer}
52  //  }
53  void Rasterize(gin::Arguments* args);
54
55  // Extracts the Skia draw commands from a JSON-encoded cc::Picture.
56  //
57  // Takes a JSON-encoded cc::Picture and returns
58  // [{ 'cmd': {String}, 'info': [String, ...] }, ...]
59  void GetOps(gin::Arguments* args);
60
61  // Returns timing information for the given picture.
62  //
63  // Takes a JSON-encoded cc::Picture and returns
64  // { 'total_time': {Number}, 'cmd_times': [Number, ...] }
65  void GetOpTimings(gin::Arguments* args);
66
67  // Returns meta information for the given picture.
68  //
69  // Takes a base64 encoded SKP and returns
70  // { 'width': {Number}, 'height': {Number} }
71  void GetInfo(gin::Arguments* args);
72
73  DISALLOW_COPY_AND_ASSIGN(SkiaBenchmarking);
74};
75
76}  // namespace content
77
78#endif // CONTENT_RENDERER_SKIA_BENCHMARKING_EXTENSION_H_
79