James Robinson | a976313 | 2014-10-06 11:18:13 -0700 | [diff] [blame] | 1 | // 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 | |
| 15 | namespace gin { |
| 16 | |
| 17 | class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator { |
| 18 | public: |
James Robinson | 30d547e | 2014-10-23 18:20:06 -0700 | [diff] [blame] | 19 | void* Allocate(size_t length) override; |
| 20 | void* AllocateUninitialized(size_t length) override; |
| 21 | void Free(void* data, size_t length) override; |
James Robinson | a976313 | 2014-10-06 11:18:13 -0700 | [diff] [blame] | 22 | |
| 23 | GIN_EXPORT static ArrayBufferAllocator* SharedInstance(); |
| 24 | }; |
| 25 | |
| 26 | class 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 | |
| 46 | template<> |
| 47 | struct GIN_EXPORT Converter<ArrayBuffer> { |
| 48 | static bool FromV8(v8::Isolate* isolate, v8::Handle<v8::Value> val, |
| 49 | ArrayBuffer* out); |
| 50 | }; |
| 51 | |
| 52 | class 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 | |
| 72 | template<> |
| 73 | struct 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_ |