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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/scummsys.h"
#if defined(SDL_BACKEND)
#include "backends/audiocd/sdl/sdl-audiocd.h"
SdlAudioCDManager::SdlAudioCDManager()
:
_cdrom(0),
_cdTrack(0),
_cdNumLoops(0),
_cdStartFrame(0),
_cdDuration(0),
_cdEndTime(0),
_cdStopTime(0) {
}
SdlAudioCDManager::~SdlAudioCDManager() {
if (_cdrom) {
SDL_CDStop(_cdrom);
SDL_CDClose(_cdrom);
}
}
bool SdlAudioCDManager::openCD(int drive) {
if (SDL_InitSubSystem(SDL_INIT_CDROM) == -1)
_cdrom = NULL;
else {
_cdrom = SDL_CDOpen(drive);
// Did it open? Check if _cdrom is NULL
if (!_cdrom) {
warning("Couldn't open drive: %s", SDL_GetError());
} else {
_cdNumLoops = 0;
_cdStopTime = 0;
_cdEndTime = 0;
}
}
return (_cdrom != NULL);
}
void SdlAudioCDManager::stopCD() {
// Stop CD Audio in 1/10th of a second
_cdStopTime = SDL_GetTicks() + 100;
_cdNumLoops = 0;
}
void SdlAudioCDManager::playCD(int track, int num_loops, int start_frame, int duration) {
if (!num_loops && !start_frame)
return;
if (!_cdrom)
return;
if (duration > 0)
duration += 5;
_cdTrack = track;
_cdNumLoops = num_loops;
_cdStartFrame = start_frame;
SDL_CDStatus(_cdrom);
if (start_frame == 0 && duration == 0)
SDL_CDPlayTracks(_cdrom, track, 0, 1, 0);
else
SDL_CDPlayTracks(_cdrom, track, start_frame, 0, duration);
_cdDuration = duration;
_cdStopTime = 0;
_cdEndTime = SDL_GetTicks() + _cdrom->track[track].length * 1000 / CD_FPS;
}
bool SdlAudioCDManager::pollCD() const {
if (!_cdrom)
return false;
return (_cdNumLoops != 0 && (SDL_GetTicks() < _cdEndTime || SDL_CDStatus(_cdrom) == CD_PLAYING));
}
void SdlAudioCDManager::updateCD() {
if (!_cdrom)
return;
if (_cdStopTime != 0 && SDL_GetTicks() >= _cdStopTime) {
SDL_CDStop(_cdrom);
_cdNumLoops = 0;
_cdStopTime = 0;
return;
}
if (_cdNumLoops == 0 || SDL_GetTicks() < _cdEndTime)
return;
if (_cdNumLoops != 1 && SDL_CDStatus(_cdrom) != CD_STOPPED) {
// Wait another second for it to be done
_cdEndTime += 1000;
return;
}
if (_cdNumLoops > 0)
_cdNumLoops--;
if (_cdNumLoops != 0) {
if (_cdStartFrame == 0 && _cdDuration == 0)
SDL_CDPlayTracks(_cdrom, _cdTrack, 0, 1, 0);
else
SDL_CDPlayTracks(_cdrom, _cdTrack, _cdStartFrame, 0, _cdDuration);
_cdEndTime = SDL_GetTicks() + _cdrom->track[_cdTrack].length * 1000 / CD_FPS;
}
}
#endif
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