File: NstApiTapeRecorder.cpp

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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
//
////////////////////////////////////////////////////////////////////////////////////////

#include "../NstMachine.hpp"
#include "../input/NstInpDevice.hpp"
#include "../input/NstInpFamilyKeyboard.hpp"
#include "NstApiTapeRecorder.hpp"
#include "NstApiMachine.hpp"

namespace Nes
{
	namespace Api
	{
		#ifdef NST_MSVC_OPTIMIZE
		#pragma optimize("s", on)
		#endif

		TapeRecorder::EventCaller TapeRecorder::eventCallback;

		Core::Input::FamilyKeyboard* TapeRecorder::Query() const
		{
			if (emulator.expPort->GetType() == Input::FAMILYKEYBOARD)
				return static_cast<Core::Input::FamilyKeyboard*>(emulator.expPort);
			else
				return NULL;
		}

		bool TapeRecorder::IsPlaying() const throw()
		{
			if (Core::Input::FamilyKeyboard* const familyKeyboard = Query())
				return familyKeyboard->IsTapePlaying();

			return false;
		}

		bool TapeRecorder::IsRecording() const throw()
		{
			if (Core::Input::FamilyKeyboard* const familyKeyboard = Query())
				return familyKeyboard->IsTapeRecording();

			return false;
		}

		bool TapeRecorder::IsStopped() const throw()
		{
			if (Core::Input::FamilyKeyboard* const familyKeyboard = Query())
				return familyKeyboard->IsTapeStopped();

			return true;
		}

		bool TapeRecorder::IsPlayable() const throw()
		{
			if (Core::Input::FamilyKeyboard* const familyKeyboard = Query())
				return familyKeyboard->IsTapePlayable();

			return false;
		}

		Result TapeRecorder::Play() throw()
		{
			if (Core::Input::FamilyKeyboard* const familyKeyboard = Query())
			{
				if (emulator.Is(Machine::ON) && !emulator.tracker.IsLocked())
					return emulator.tracker.TryResync( familyKeyboard->PlayTape() );
			}

			return RESULT_ERR_NOT_READY;
		}

		Result TapeRecorder::Record() throw()
		{
			if (Core::Input::FamilyKeyboard* const familyKeyboard = Query())
			{
				if (emulator.Is(Machine::ON) && !emulator.tracker.IsLocked())
					return emulator.tracker.TryResync( familyKeyboard->RecordTape() );
			}

			return RESULT_ERR_NOT_READY;
		}

		Result TapeRecorder::Stop() throw()
		{
			if (Core::Input::FamilyKeyboard* const familyKeyboard = Query())
			{
				if (familyKeyboard->IsTapePlaying() || familyKeyboard->IsTapeRecording())
				{
					if (emulator.tracker.IsLocked())
						return RESULT_ERR_NOT_READY;

					return emulator.tracker.TryResync( familyKeyboard->StopTape() );
				}
			}

			return RESULT_NOP;
		}

		#ifdef NST_MSVC_OPTIMIZE
		#pragma optimize("", on)
		#endif
	}
}