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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PPAPI_CONTENT_RENDERER_PEPPER_HOST_ARRAY_BUFFER_VAR_H_
#define PPAPI_CONTENT_RENDERER_PEPPER_HOST_ARRAY_BUFFER_VAR_H_
#include "base/memory/shared_memory.h"
#include "ppapi/c/pp_instance.h"
#include "ppapi/shared_impl/host_resource.h"
#include "ppapi/shared_impl/var.h"
#include "third_party/WebKit/public/platform/WebArrayBuffer.h"
namespace content {
// Represents a host-side ArrayBufferVar.
class HostArrayBufferVar : public ppapi::ArrayBufferVar {
public:
explicit HostArrayBufferVar(uint32 size_in_bytes);
explicit HostArrayBufferVar(const blink::WebArrayBuffer& buffer);
explicit HostArrayBufferVar(uint32 size_in_bytes,
base::SharedMemoryHandle handle);
// ArrayBufferVar implementation.
virtual void* Map() OVERRIDE;
virtual void Unmap() OVERRIDE;
virtual uint32 ByteLength() OVERRIDE;
virtual bool CopyToNewShmem(
PP_Instance instance,
int* host_shm_handle_id,
base::SharedMemoryHandle* plugin_shm_handle) OVERRIDE;
blink::WebArrayBuffer& webkit_buffer() { return buffer_; }
private:
virtual ~HostArrayBufferVar();
blink::WebArrayBuffer buffer_;
// Tracks whether the data in the buffer is valid.
bool valid_;
DISALLOW_COPY_AND_ASSIGN(HostArrayBufferVar);
};
} // namespace content
#endif // PPAPI_CONTENT_RENDERER_PEPPER_HOST_ARRAY_BUFFER_VAR_H_
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