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////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Nestopia is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#ifndef NST_DIRECTX_H
#define NST_DIRECTX_H
#pragma once
#include "NstSystemGuid.hpp"
namespace Nestopia
{
namespace DirectX
{
struct BaseAdapter
{
bool operator == (const BaseAdapter& a) const { return guid == a.guid; }
bool operator < (const BaseAdapter& a) const { return guid < a.guid; }
bool operator == (const System::Guid& g) const { return guid == g; }
System::Guid guid;
HeapString name;
};
template<typename T>
class ComInterface : public ImplicitBool< ComInterface<T> >
{
T* com;
public:
ComInterface()
: com(NULL) {}
~ComInterface()
{
if (com)
com->Release();
}
ulong Release()
{
if (T* const p = com)
{
com = NULL;
return p->Release();
}
return 0;
}
bool operator ! () const
{
return com == NULL;
}
T* operator * () const
{
return com;
}
T* operator -> () const
{
NST_ASSERT( com );
return com;
}
T** operator & ()
{
NST_VERIFY( !com );
return &com;
}
};
}
}
#endif
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