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// Copyright (c) 2006-2008 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_COMMAND_BUFFER_H_
#define GPU_COMMAND_BUFFER_SERVICE_COMMAND_BUFFER_H_
#include <set>
#include <vector>
#include "base/linked_ptr.h"
#include "base/scoped_ptr.h"
#include "base/shared_memory.h"
#include "base/task.h"
#include "gpu/command_buffer/common/command_buffer.h"
#include "gpu/np_utils/default_np_object.h"
#include "gpu/np_utils/np_dispatcher.h"
namespace command_buffer {
// An NPObject that implements a shared memory command buffer and a synchronous
// API to manage the put and get pointers.
class CommandBufferService : public CommandBuffer {
public:
CommandBufferService();
virtual ~CommandBufferService();
// Overrides CommandBuffer.
virtual bool Initialize(::base::SharedMemory* ring_buffer);
// Overrides CommandBuffer.
virtual ::base::SharedMemory* GetRingBuffer();
virtual int32 GetSize();
// Overrides CommandBuffer.
virtual int32 SyncOffsets(int32 put_offset);
// Overrides CommandBuffer.
virtual int32 GetGetOffset();
// Overrides CommandBuffer.
virtual void SetGetOffset(int32 get_offset);
// Overrides CommandBuffer.
virtual int32 GetPutOffset();
// Overrides CommandBuffer.
virtual void SetPutOffsetChangeCallback(Callback0::Type* callback);
// Overrides CommandBuffer.
virtual int32 CreateTransferBuffer(size_t size);
// Overrides CommandBuffer.
virtual void DestroyTransferBuffer(int32 id);
// Overrides CommandBuffer.
virtual ::base::SharedMemory* GetTransferBuffer(int32 handle);
// Overrides CommandBuffer.
virtual int32 GetToken();
// Overrides CommandBuffer.
virtual void SetToken(int32 token);
// Overrides CommandBuffer.
virtual int32 ResetParseError();
// Overrides CommandBuffer.
virtual void SetParseError(int32 parse_error);
// Overrides CommandBuffer.
virtual bool GetErrorStatus();
// Overrides CommandBuffer.
virtual void RaiseErrorStatus();
private:
scoped_ptr< ::base::SharedMemory> ring_buffer_;
int32 size_;
int32 get_offset_;
int32 put_offset_;
scoped_ptr<Callback0::Type> put_offset_change_callback_;
std::vector<linked_ptr< ::base::SharedMemory> > registered_objects_;
std::set<int32> unused_registered_object_elements_;
int32 token_;
int32 parse_error_;
bool error_status_;
};
} // namespace command_buffer
#endif // GPU_COMMAND_BUFFER_SERVICE_COMMAND_BUFFER_H_
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