www.pudn.com > Nestopia137src.zip > NstApiRewinder.cpp

//////////////////////////////////////////////////////////////////////////////////////// 
// 
// Nestopia - NES/Famicom emulator written in C++ 
// 
// Copyright (C) 2003-2007 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 
// 
//////////////////////////////////////////////////////////////////////////////////////// 
 
#include  
#include "../NstMachine.hpp" 
#include "NstApiMachine.hpp" 
#include "NstApiRewinder.hpp" 
 
namespace Nes 
{ 
	namespace Api 
	{ 
		#ifdef NST_MSVC_OPTIMIZE 
		#pragma optimize("s", on) 
		#endif 
 
		Rewinder::StateCaller Rewinder::stateCallback; 
 
		Result Rewinder::Enable(bool enable) throw() 
		{ 
			try 
			{ 
				return emulator.tracker.EnableRewinder( enable ? &emulator : NULL ); 
			} 
			catch (Result result) 
			{ 
				return result; 
			} 
			catch (const std::bad_alloc&) 
			{ 
				return RESULT_ERR_OUT_OF_MEMORY; 
			} 
			catch (...) 
			{ 
				return RESULT_ERR_GENERIC; 
			} 
		} 
 
		bool Rewinder::IsEnabled() const throw() 
		{ 
			return emulator.tracker.IsRewinderEnabled(); 
		} 
 
		bool Rewinder::IsSoundEnabled() const throw() 
		{ 
			return emulator.tracker.IsRewinderSoundEnabled(); 
		} 
 
		void Rewinder::EnableSound(bool enable) throw() 
		{ 
			emulator.tracker.EnableRewinderSound( enable ); 
		} 
 
		Rewinder::Direction Rewinder::GetDirection() const throw() 
		{ 
			return emulator.tracker.IsRewinding() ? BACKWARD : FORWARD; 
		} 
 
		Result Rewinder::SetDirection(Direction dir) throw() 
		{ 
			if (emulator.Is(Machine::GAME,Machine::ON)) 
			{ 
				if (dir == BACKWARD) 
					return emulator.tracker.StartRewinding(); 
				else 
					return emulator.tracker.StopRewinding(); 
			} 
 
			return RESULT_ERR_NOT_READY; 
		} 
 
		void Rewinder::Reset() throw() 
		{ 
			if (emulator.Is(Machine::GAME,Machine::ON)) 
				emulator.tracker.ResetRewinder(); 
		} 
 
		#ifdef NST_MSVC_OPTIMIZE 
		#pragma optimize("", on) 
		#endif 
	} 
}