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1 // Copyright (c) 2012 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 PPAPI_WEBKIT_PLUGINS_PPAPI_HOST_ARRAY_BUFFER_VAR_H_ | |
6 #define PPAPI_WEBKIT_PLUGINS_PPAPI_HOST_ARRAY_BUFFER_VAR_H_ | |
7 | |
8 #include "base/memory/shared_memory.h" | |
9 #include "ppapi/c/pp_instance.h" | |
10 #include "ppapi/shared_impl/host_resource.h" | |
11 #include "ppapi/shared_impl/var.h" | |
12 #include "third_party/WebKit/public/platform/WebArrayBuffer.h" | |
13 | |
14 namespace webkit { | |
15 namespace ppapi { | |
16 | |
17 // Represents a host-side ArrayBufferVar. | |
18 class HostArrayBufferVar : public ::ppapi::ArrayBufferVar { | |
19 public: | |
20 explicit HostArrayBufferVar(uint32 size_in_bytes); | |
21 explicit HostArrayBufferVar(const WebKit::WebArrayBuffer& buffer); | |
22 explicit HostArrayBufferVar(uint32 size_in_bytes, | |
23 base::SharedMemoryHandle handle); | |
24 virtual ~HostArrayBufferVar(); | |
25 | |
26 // ArrayBufferVar implementation. | |
27 virtual void* Map() OVERRIDE; | |
28 virtual void Unmap() OVERRIDE; | |
29 virtual uint32 ByteLength() OVERRIDE; | |
30 virtual bool CopyToNewShmem( | |
31 PP_Instance instance, | |
32 int* host_shm_handle_id, | |
33 base::SharedMemoryHandle* plugin_shm_handle) OVERRIDE; | |
34 | |
35 WebKit::WebArrayBuffer& webkit_buffer() { return buffer_; } | |
36 | |
37 private: | |
38 WebKit::WebArrayBuffer buffer_; | |
39 // Tracks whether the data in the buffer is valid. | |
40 bool valid_; | |
41 | |
42 DISALLOW_COPY_AND_ASSIGN(HostArrayBufferVar); | |
43 }; | |
44 | |
45 } // namespace ppapi | |
46 } // namespace webkit | |
47 | |
48 #endif // PPAPI_WEBKIT_PLUGINS_PPAPI_HOST_ARRAY_BUFFER_VAR_H_ | |
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