vbagx/source/vba/common/SoundDriver.h

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2009-01-10 03:41:39 +01:00
// VisualBoyAdvance - Nintendo Gameboy/GameboyAdvance (TM) emulator.
// Copyright (C) 2008 VBA-M development team
// This program 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, or(at your option)
// any later version.
//
// This program 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 this program; if not, write to the Free Software Foundation,
// Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#ifndef __VBA_SOUND_DRIVER_H__
#define __VBA_SOUND_DRIVER_H__
#include "Types.h"
/**
* Sound driver abstract interface for the core to use to output sound.
* Subclass this to implement a new sound driver.
*/
class SoundDriver
{
public:
/**
* Destructor. Free the resources allocated by the sound driver.
*/
virtual ~SoundDriver() { };
/**
* Initialize the sound driver.
* @param sampleRate In Hertz
*/
virtual bool init(long sampleRate) = 0;
/**
* Tell the driver that the sound stream has paused
*/
virtual void pause() = 0;
/**
* Reset the sound driver
*/
virtual void reset() = 0;
/**
* Tell the driver that the sound stream has resumed
*/
virtual void resume() = 0;
/**
* Write length bytes of data from the finalWave buffer to the driver output buffer.
*/
virtual void write(u16 * finalWave, int length) = 0;
virtual void setThrottle(unsigned short throttle) { };
};
#endif // __VBA_SOUND_DRIVER_H__