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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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