105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program 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
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "common/stdafx.h"
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#include "common/system.h"
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#include "cd_default.h"
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DefaultCDPlayer::DefaultCDPlayer(OSystem *sys) {
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_sys = sys;
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}
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bool DefaultCDPlayer::init() {
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_isInitialized = true;
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return _isInitialized;
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}
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void DefaultCDPlayer::release() {
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// self delete
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delete this;
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}
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bool DefaultCDPlayer::poll() {
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return (_defLoops != 0 && _sys->getMillis() < _defTrackEndFrame);
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}
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void DefaultCDPlayer::update() {
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// stop replay upon request of stopCD()
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if (_defStopTime != 0 && _sys->getMillis() >= _defStopTime) {
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_defLoops = 0;
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_defStopTime = 0;
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_defTrackEndFrame = 0;
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return;
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}
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// not fully played
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if (_sys->getMillis() < _defTrackEndFrame)
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return;
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if (_defLoops == 0)
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return;
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// loop again ?
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if (_defLoops > 0)
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_defLoops--;
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// loop if needed
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if (_defLoops != 0) {
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_defTrackEndFrame = _sys->getMillis() + _defTrackLength;
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}
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}
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void DefaultCDPlayer::stop() { /* Stop CD Audio in 1/10th of a second */
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_defStopTime = _sys->getMillis() + 100;
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_defLoops = 0;
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return;
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}
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void DefaultCDPlayer::play(int track, int num_loops, int start_frame, int duration) {
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if (!num_loops && !start_frame)
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return;
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UInt32 fullLength;
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_defLoops = num_loops;
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start_frame = TO_MSECS(start_frame);
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duration = TO_MSECS(duration);
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// frame in milli-seconds
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_defStopTime = 0;
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fullLength = start_frame + gVars->CD.defaultTrackLength * 1000;
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if (duration > 0) {
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_defTrackLength = duration;
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} else if (start_frame > 0) {
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_defTrackLength = fullLength;
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_defTrackLength -= start_frame;
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} else {
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_defTrackLength = fullLength;
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}
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// try to play the track
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_defTrackEndFrame = _sys->getMillis() + _defTrackLength;
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}
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