Bochs/bochs/iodev/speaker.h
Volker Ruppert 5c0bd188ed - check the beep output interface and report the one to be used in the reset()
method. This makes sure that the lowlevel sound interface is reported correctly.
2012-05-24 18:06:40 +00:00

54 lines
1.7 KiB
C++

/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright 2003 by David N. Welton <davidw@dedasys.com>.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
/*
* This file defines a class to deal with the speaker.
* This class also tries to play beeps on the console
* (linux only) and also forwards beeps to the gui
* so we have the possiblity to signal the beep
*/
#ifndef BX_PC_SPEAKER_H
#define BX_PC_SPEAKER_H
class bx_speaker_c : public bx_speaker_stub_c {
public:
bx_speaker_c();
virtual ~bx_speaker_c();
virtual void init(void);
virtual void reset(unsigned int);
void beep_on(float frequency);
void beep_off();
private:
float beep_frequency; // 0 : beep is off
bx_bool outputinit;
#ifdef __linux__
/* Do we have access? If not, just skip everything else. */
signed int consolefd;
const static unsigned int clock_tick_rate = 1193180;
#elif defined(WIN32)
Bit64u usec_start;
#endif
};
#endif