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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 GPU_COMMAND_BUFFER_SERVICE_TRANSFER_BUFFER_MANAGER_H_
#define GPU_COMMAND_BUFFER_SERVICE_TRANSFER_BUFFER_MANAGER_H_
#include <set>
#include <vector>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/shared_memory.h"
#include "gpu/command_buffer/common/command_buffer_shared.h"
namespace gpu {
class GPU_EXPORT TransferBufferManagerInterface {
public:
virtual ~TransferBufferManagerInterface();
virtual int32 CreateTransferBuffer(size_t size, int32 id_request) = 0;
virtual int32 RegisterTransferBuffer(
base::SharedMemory* shared_memory,
size_t size,
int32 id_request) = 0;
virtual void DestroyTransferBuffer(int32 id) = 0;
virtual Buffer GetTransferBuffer(int32 handle) = 0;
};
class GPU_EXPORT TransferBufferManager
: public TransferBufferManagerInterface {
public:
TransferBufferManager();
bool Initialize();
virtual int32 CreateTransferBuffer(size_t size, int32 id_request) OVERRIDE;
virtual int32 RegisterTransferBuffer(
base::SharedMemory* shared_memory,
size_t size,
int32 id_request) OVERRIDE;
virtual void DestroyTransferBuffer(int32 id) OVERRIDE;
virtual Buffer GetTransferBuffer(int32 handle) OVERRIDE;
private:
virtual ~TransferBufferManager();
std::set<int32> unused_registered_object_elements_;
std::vector<Buffer> registered_objects_;
size_t shared_memory_bytes_allocated_;
DISALLOW_COPY_AND_ASSIGN(TransferBufferManager);
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_TRANSFER_BUFFER_MANAGER_H_
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