blob: fe3fae28153e37e4c80c2fc4b2457a45ad567623 [file] [log] [blame]
James Robinsona9763132014-10-06 11:18:13 -07001// Copyright 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 GIN_ARRAY_BUFFER_H_
6#define GIN_ARRAY_BUFFER_H_
7
8#include "base/basictypes.h"
9#include "base/compiler_specific.h"
10#include "base/memory/ref_counted.h"
11#include "gin/converter.h"
12#include "gin/gin_export.h"
13#include "v8/include/v8.h"
14
15namespace gin {
16
17class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
18 public:
James Robinson30d547e2014-10-23 18:20:06 -070019 void* Allocate(size_t length) override;
20 void* AllocateUninitialized(size_t length) override;
21 void Free(void* data, size_t length) override;
James Robinsona9763132014-10-06 11:18:13 -070022
23 GIN_EXPORT static ArrayBufferAllocator* SharedInstance();
24};
25
26class GIN_EXPORT ArrayBuffer {
27 public:
28 ArrayBuffer();
29 ArrayBuffer(v8::Isolate* isolate, v8::Handle<v8::ArrayBuffer> buffer);
30 ~ArrayBuffer();
31 ArrayBuffer& operator=(const ArrayBuffer& other);
32
33 void* bytes() const { return bytes_; }
34 size_t num_bytes() const { return num_bytes_; }
35
36 private:
37 class Private;
38
39 scoped_refptr<Private> private_;
40 void* bytes_;
41 size_t num_bytes_;
42
43 DISALLOW_COPY(ArrayBuffer);
44};
45
46template<>
47struct GIN_EXPORT Converter<ArrayBuffer> {
48 static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
49 ArrayBuffer* out);
50};
51
52class GIN_EXPORT ArrayBufferView {
53 public:
54 ArrayBufferView();
55 ArrayBufferView(v8::Isolate* isolate, v8::Handle<v8::ArrayBufferView> view);
56 ~ArrayBufferView();
57 ArrayBufferView& operator=(const ArrayBufferView& other);
58
59 void* bytes() const {
60 return static_cast<uint8_t*>(array_buffer_.bytes()) + offset_;
61 }
62 size_t num_bytes() const { return num_bytes_; }
63
64 private:
65 ArrayBuffer array_buffer_;
66 size_t offset_;
67 size_t num_bytes_;
68
69 DISALLOW_COPY(ArrayBufferView);
70};
71
72template<>
73struct GIN_EXPORT Converter<ArrayBufferView> {
74 static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val,
75 ArrayBufferView* out);
76};
77
78} // namespace gin
79
80#endif // GIN_ARRAY_BUFFER_H_