54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright 2003 by David N. Welton <davidw@dedasys.com>.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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/*
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* This file defines a class to deal with the speaker.
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* This class also tries to play beeps on the console
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* (linux only) and also forwards beeps to the gui
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* so we have the possiblity to signal the beep
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*/
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#ifndef BX_PC_SPEAKER_H
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#define BX_PC_SPEAKER_H
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class bx_speaker_c : public bx_speaker_stub_c {
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public:
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bx_speaker_c();
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virtual ~bx_speaker_c();
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virtual void init(void);
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virtual void reset(unsigned int);
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void beep_on(float frequency);
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void beep_off();
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private:
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float beep_frequency; // 0 : beep is off
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bx_bool outputinit;
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#ifdef __linux__
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/* Do we have access? If not, just skip everything else. */
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signed int consolefd;
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const static unsigned int clock_tick_rate = 1193180;
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#elif defined(WIN32)
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Bit64u usec_start;
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#endif
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};
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#endif
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