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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2004 The ScummVM project
*
* 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
* of the License, 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.
*
* $Header$
*
*/
#include "stdafx.h"
#include "common/system.h"
#include "cd_default.h"
DefaultCDPlayer::DefaultCDPlayer(OSystem *sys) {
_sys = sys;
}
bool DefaultCDPlayer::init() {
_isInitialized = true;
return _isInitialized;
}
void DefaultCDPlayer::release() {
// self delete
delete this;
}
bool DefaultCDPlayer::poll() {
return (_defLoops != 0 && _sys->get_msecs() < _defTrackEndFrame);
}
void DefaultCDPlayer::update() {
// stop replay upon request of stop_cdrom()
if (_defStopTime != 0 && _sys->get_msecs() >= _defStopTime) {
_defLoops = 0;
_defStopTime = 0;
_defTrackEndFrame = 0;
return;
}
// not fully played
if (_sys->get_msecs() < _defTrackEndFrame)
return;
if (_defLoops == 0)
return;
// loop again ?
if (_defLoops > 0)
_defLoops--;
// loop if needed
if (_defLoops != 0) {
_defTrackEndFrame = _sys->get_msecs() + _defTrackLength;
}
}
void DefaultCDPlayer::stop() { /* Stop CD Audio in 1/10th of a second */
_defStopTime = _sys->get_msecs() + 100;
_defLoops = 0;
return;
}
void DefaultCDPlayer::play(int track, int num_loops, int start_frame, int duration) {
if (!num_loops && !start_frame)
return;
UInt32 fullLength;
_defLoops = num_loops;
start_frame = TO_MSECS(start_frame);
duration = TO_MSECS(duration);
// frame in milli-seconds
_defStopTime = 0;
fullLength = start_frame + gVars->CD.defaultTrackLength * 1000;
if (duration > 0) {
_defTrackLength = duration;
} else if (start_frame > 0) {
_defTrackLength = fullLength;
_defTrackLength -= start_frame;
} else {
_defTrackLength = fullLength;
}
// try to play the track
_defTrackEndFrame = _sys->get_msecs() + _defTrackLength;
}
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