nestopia/source/core/api/NstApiRewinder.cpp
2012-09-02 13:13:55 -04:00

103 lines
2.6 KiB
C++

////////////////////////////////////////////////////////////////////////////////////////
//
// 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 <new>
#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
}
}