www.pudn.com > Nestopia137src.zip > NstApiTapeRecorder.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 "../NstMachine.hpp" 
#include "../NstImage.hpp" 
#include "../NstFile.hpp" 
#include "../NstPrpDataRecorder.hpp" 
#include "NstApiMachine.hpp" 
#include "NstApiTapeRecorder.hpp" 
 
namespace Nes 
{ 
	namespace Api 
	{ 
		#ifdef NST_MSVC_OPTIMIZE 
		#pragma optimize("s", on) 
		#endif 
 
		TapeRecorder::EventCaller TapeRecorder::eventCallback; 
 
		Core::Peripherals::DataRecorder* TapeRecorder::Query() const 
		{ 
			if (emulator.image) 
			{ 
				if (Core::Image::ExternalDevice device = emulator.image->QueryExternalDevice( Core::Image::EXT_DATA_RECORDER )) 
					return static_cast(device); 
			} 
 
			return NULL; 
		} 
 
		bool TapeRecorder::IsPlaying() const throw() 
		{ 
			if (Core::Peripherals::DataRecorder* const dataRecorder = Query()) 
				return dataRecorder->IsPlaying(); 
 
			return false; 
		} 
 
		bool TapeRecorder::IsRecording() const throw() 
		{ 
			if (Core::Peripherals::DataRecorder* const dataRecorder = Query()) 
				return dataRecorder->IsRecording(); 
 
			return false; 
		} 
 
		bool TapeRecorder::IsStopped() const throw() 
		{ 
			if (Core::Peripherals::DataRecorder* const dataRecorder = Query()) 
				return dataRecorder->IsStopped(); 
 
			return true; 
		} 
 
		bool TapeRecorder::IsPlayable() const throw() 
		{ 
			if (Core::Peripherals::DataRecorder* const dataRecorder = Query()) 
				return dataRecorder->Playable(); 
 
			return false; 
		} 
 
		Result TapeRecorder::Play() throw() 
		{ 
			if (Core::Peripherals::DataRecorder* const dataRecorder = Query()) 
			{ 
				if (emulator.Is(Machine::ON) && !emulator.tracker.IsLocked()) 
					return emulator.tracker.TryResync( dataRecorder->Play() ); 
			} 
 
			return RESULT_ERR_NOT_READY; 
		} 
 
		Result TapeRecorder::Record() throw() 
		{ 
			if (Core::Peripherals::DataRecorder* const dataRecorder = Query()) 
			{ 
				if (emulator.Is(Machine::ON) && !emulator.tracker.IsLocked()) 
					return emulator.tracker.TryResync( dataRecorder->Record() ); 
			} 
 
			return RESULT_ERR_NOT_READY; 
		} 
 
		Result TapeRecorder::Stop() throw() 
		{ 
			if (Core::Peripherals::DataRecorder* const dataRecorder = Query()) 
			{ 
				if (dataRecorder->IsPlaying()) 
				{ 
					if (emulator.tracker.IsLocked()) 
						return RESULT_ERR_NOT_READY; 
 
					return emulator.tracker.TryResync( dataRecorder->Stop() ); 
				} 
			} 
 
			return RESULT_NOP; 
		} 
 
		#ifdef NST_MSVC_OPTIMIZE 
		#pragma optimize("", on) 
		#endif 
	} 
}