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cd_pockettunes.cpp

/* 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: /cvsroot/scummvm/scummvm/backends/PalmOS/Src/cd_pockettunes.cpp,v 1.2 2004/09/28 20:19:21 fingolfin Exp $
 *
 */
#include "stdafx.h"
#include "common/system.h"
#include "common/config-manager.h"

#include "cd_pockettunes.h"

PckTunesCDPlayer::PckTunesCDPlayer(OSystem *sys) {
      _sys = sys;
      StrCopy(gameP, ConfMan.getActiveDomain().c_str());
}

bool PckTunesCDPlayer::init() {
      PocketTunesStart();
      _isInitialized = PocketTunesIsRunning();
      _isPlaying = false;
      return _isInitialized;
}

void PckTunesCDPlayer::release() {
      // self delete
      PocketTunesStop();
      delete this;
}

UInt32 PckTunesCDPlayer::getStatus() {
      if (!_isPlaying)
            return kPtunesStopped;

      EventType e;
      UInt32 status;
      
      PocketTunesAction *pAction = (PocketTunesAction*)MemPtrNew (sizeof(PocketTunesAction));
      if (!pAction)
            return kPtunesStopped;

      pAction->action = kPocketTunesActionGetStatus;
      EvtGetEvent(&e, evtNoWait);
      if (PocketTunesCallSynch(pAction) == errNone)
            status = pAction->data.getStatusAction.status;
      else
            status = kPtunesStopped;
      
      MemPtrFree(pAction);
      return status;    
}

UInt32 PckTunesCDPlayer::getPosition(UInt32 deflt) {
      if (!_isPlaying)
            return deflt;

      EventType e;
      UInt32 value;

      PocketTunesAction *pAction = (PocketTunesAction*)MemPtrNew (sizeof(PocketTunesAction));
      if (!pAction)
            return deflt;

      pAction->action = kPocketTunesActionGetValue;
      pAction->data.getValueAction.which = kPtunesValueSongPosition;
      
      EvtGetEvent(&e, evtNoWait);
      if (PocketTunesCallSynch(pAction) == errNone)
            value = pAction->data.getValueAction.value;
      else
            value = deflt;

      MemPtrFree(pAction);
      return value;
}

void PckTunesCDPlayer::setPosition(UInt32 value) {
      if (!_isPlaying)
            return;

      EventType e;
      PocketTunesAction *pAction = AllocateAsynchronousActionStruct();
      if (!pAction)
            return;

      pAction->action = kPocketTunesActionSetValue;
      pAction->data.getValueAction.which = kPtunesValueSongPosition;
      pAction->data.getValueAction.value = value;

      EvtGetEvent(&e, evtNoWait);
      PocketTunesCall(pAction);
}

UInt32 PckTunesCDPlayer::getDuration() {
      if (!_isPlaying)
            return gVars->CD.defaultTrackLength;

      EventType e;
      UInt32 value;
      
      PocketTunesAction *pAction = (PocketTunesAction*)MemPtrNew (sizeof(PocketTunesAction));
      if (!pAction)
            return gVars->CD.defaultTrackLength;

      pAction->action = kPocketTunesActionGetValue;
      pAction->data.getValueAction.which = kPtunesValueSongDuration;
      
      EvtGetEvent(&e, evtNoWait);
      if (PocketTunesCallSynch(pAction) == errNone)
            value = pAction->data.getValueAction.value;
      else
            value = gVars->CD.defaultTrackLength;
      
      MemPtrFree(pAction);
      return value;     
}

bool PckTunesCDPlayer::poll() {
      return (_pckLoops != 0 && (getPosition(_pckTrackEndFrame) < _pckTrackEndFrame || getStatus() != kPtunesStopped));
}

void PckTunesCDPlayer::update() {

      // stop replay upon request of stopCD()
      if (_pckStopTime != 0 && _sys->getMillis() >= _pckStopTime) {
            PocketTunesStop();
            _pckLoops = 0;
            _pckStopTime = 0;
            _pckTrackEndFrame = 0;
            return;
      }

      // not fully played
//    if (_sys->getMillis() < _pckTrackEndFrame)
//          return;
      if (getPosition(_pckTrackEndFrame) < _pckTrackEndFrame)
            return;

      PocketTunesStop();

      if (_pckLoops == 0)
            return;

      // loop again ?
      if (_pckLoops > 0)
            _pckLoops--;

      // loop if needed
      if (_pckLoops != 0 && _isPlaying) {
            PocketTunesPlay();

            if (_pckTrackStartFrame == 0 && _pckTrackDuration == 0) {
                  setPosition(0);
            } else {
                  setPosition(_pckTrackStartFrame);
            }
//          _pckTrackEndFrame = _pckTrackStartFrame + _pckTrackDuration;
      }
}

void PckTunesCDPlayer::stop() {     /* Stop CD Audio in 1/10th of a second */
      _pckStopTime = _sys->getMillis() + 100;
      _pckLoops = 0;
      return;
}

void PckTunesCDPlayer::play(int track, int num_loops, int start_frame, int duration) {
      if (!num_loops && !start_frame)
            return;

      EventType e;
      Char nameP[256], fileP[100];
      Char *ext[] = { "mp3", "ogg" };
      
//    if (duration > 0)
//          duration += 5;

      _pckTrack = track;
      _pckLoops = num_loops;
      _pckTrackStartFrame = TO_MSECS(start_frame);
      _pckTrackDuration = TO_MSECS(duration);

      // stop current play if any
      VFSVolumeGetLabel(gVars->volRefNum, nameP, 256);
      
      StrPrintF(fileP, "/Palm/Programs/ScummVM/Audio/%s_%03ld.%s", gameP, (track + gVars->CD.firstTrack - 1), ext[gVars->CD.format]);
      
      if (PocketTunesOpenFile(nameP, fileP, 0) == errNone) {
            EvtGetEvent(&e, evtNoWait);
            PocketTunesPauseIfPlaying();
            _isPlaying = true;

            if (_pckTrackStartFrame == 0 && _pckTrackDuration == 0) {
                  _pckTrackDuration = getDuration();
            } else {
                  setPosition(_pckTrackStartFrame);
                  if (_pckTrackDuration == 0)
                        _pckTrackDuration = getDuration() - _pckTrackStartFrame;
            }

            PocketTunesPlay();

      } else {
            _isPlaying = false;
            _pckTrackDuration = gVars->CD.defaultTrackLength * 1000;
      }

      _pckStopTime = 0;
      _pckTrackEndFrame = _pckTrackStartFrame + _pckTrackDuration;
}

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