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sound.cpp

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2003-2004 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/queen/sound.cpp,v 1.47.2.1 2004/12/19 12:48:11 cyx Exp $
 *
 */

#include "stdafx.h"
#include "queen/sound.h"

#include "queen/input.h"
#include "queen/music.h"
#include "queen/queen.h"
#include "queen/resource.h"

#include "sound/flac.h"
#include "sound/mp3.h"
#include "sound/vorbis.h"

#define     SB_HEADER_SIZE    110
#define     STOP_MUSIC  -1

namespace Queen {

Sound::Sound(SoundMixer *mixer, QueenEngine *vm) : 
      _mixer(mixer), _vm(vm), _sfxToggle(true), _speechToggle(true), _musicToggle(true), _lastOverride(0) {
}

Sound::~Sound() {
}

Sound *Sound::giveSound(SoundMixer *mixer, QueenEngine *vm, uint8 compression) {
      if (!mixer->isReady())
            return new SilentSound(mixer, vm);
      
      switch(compression) {
            case COMPRESSION_NONE:
                        return new SBSound(mixer, vm);
                        break;
            case COMPRESSION_MP3:
                        #ifndef USE_MAD
                              warning("Using MP3 compressed datafile, but MP3 support not compiled in");
                              return new SilentSound(mixer, vm);
                        #else
                              return new MP3Sound(mixer, vm);
                        #endif
                        break;
            case COMPRESSION_OGG:
                        #ifndef USE_VORBIS
                              warning("Using OGG compressed datafile, but OGG support not compiled in");
                              return new SilentSound(mixer, vm);
                        #else
                              return new OGGSound(mixer, vm);
                        #endif
                        break;
            case COMPRESSION_FLAC:
                        #ifndef USE_FLAC
                              warning("Using FLAC compressed datafile, but FLAC support not compiled in");
                              return new SilentSound(mixer, vm);
                        #else
                              return new FLACSound(mixer, vm);
                        #endif
                        break;
            default:
                        warning("Unknown compression type");
                        return new SilentSound(mixer, vm);
      }
}

void Sound::waitFinished(bool isSpeech) {
      if (isSpeech)
            while (_speechHandle.isActive())
                  _vm->input()->delay(10);
      else
            while (_sfxHandle.isActive())
                  _vm->input()->delay(10);
}

void Sound::playSfx(uint16 sfx, bool isSpeech) {
      if (isSpeech && !speechOn()) return;
      else if (!sfxOn()) return;

      if (sfx != 0) {
            char name[13];
#ifndef __PALM_OS__
            strcpy(name, _sfxName[sfx - 1]);
#else
            strncpy(name, _sfxName + 10 * (sfx - 1), 10);   // saved as 8char + /0/0
#endif
            strcat(name, ".SB");
            waitFinished(isSpeech);
            if (_vm->resource()->fileExists(name)) {
                  sfxPlay(name, isSpeech);
                  _speechSfxExists = isSpeech;
            } else {
                  _speechSfxExists = false;
            }
      }
}

void Sound::playSfx(const char *base, bool isSpeech) {
      if (isSpeech && !speechOn()) return;
      else if (!sfxOn()) return;
      
      char name[13];
      strcpy(name, base);
      // alter filename to add zeros and append ".SB"
      for (int i = 0; i < 8; i++) {
            if (name[i] == ' ')
                  name[i] = '0';
      }
      strcat(name, ".SB");
      waitFinished(isSpeech);
      if (_vm->resource()->fileExists(name)) {
            sfxPlay(name, isSpeech);
            _speechSfxExists = isSpeech;
      } else {
            _speechSfxExists = false;
      }
}

void Sound::playSong(int16 songNum) {
      if (songNum <= 0) {
            _vm->music()->stopSong();
            return;
      }
      
      int16 newTune;
      if (_vm->resource()->isDemo()) {
            if (songNum == 17) {
                  _vm->music()->stopSong();
                  return;
            }
            newTune = _songDemo[songNum - 1].tuneList[0] - 1;
      } else {
            newTune = _song[songNum - 1].tuneList[0] - 1;
      }

      if (_tune[newTune].sfx[0]) {
            if (sfxOn())
                  playSfx(_tune[newTune].sfx[0], false);
            return;
      }

      if (!musicOn())
            return;

      int override = (_vm->resource()->isDemo()) ? _songDemo[songNum - 1].override : _song[songNum - 1].override;
      switch (override) {
            // Override all songs
            case  1:
                  break;
            // Alter song settings (such as volume) and exit
            case  2:
                  _vm->music()->toggleVChange();
            default:
                  return;
                  break;
      }
      
      _lastOverride = songNum;
      
      _vm->music()->queueTuneList(newTune);
      _vm->music()->playMusic();
}

void Sound::saveState(byte *&ptr) {
      WRITE_BE_UINT16(ptr, _lastOverride); ptr += 2;
}

void Sound::loadState(uint32 ver, byte *&ptr) {
      _lastOverride = (int16)READ_BE_INT16(ptr); ptr += 2;
}

void SBSound::playSound(byte *sound, uint32 size, bool isSpeech) {
      byte flags = SoundMixer::FLAG_UNSIGNED | SoundMixer::FLAG_AUTOFREE;
      _mixer->playRaw(isSpeech ? &_speechHandle : &_sfxHandle, sound, size, 11025, flags);
}

void SBSound::sfxPlay(const char *name, bool isSpeech) {
      uint32 size;
      uint8 *buf = _vm->resource()->loadFile(name, SB_HEADER_SIZE, &size, true);
      playSound(buf, size, isSpeech);
}

#ifdef USE_MAD
void MP3Sound::sfxPlay(const char *name, bool isSpeech) {
      uint32 size;
      File *f = _vm->resource()->giveCompressedSound(name, &size);
      _mixer->playInputStream(isSpeech ? &_speechHandle : &_sfxHandle, makeMP3Stream(f, size), false);
}
#endif

#ifdef USE_VORBIS
void OGGSound::sfxPlay(const char *name, bool isSpeech) {
      uint32 size;
      File *f = _vm->resource()->giveCompressedSound(name, &size);            
      _mixer->playInputStream(isSpeech ? &_speechHandle : &_sfxHandle, makeVorbisStream(f, size), false);
}
#endif

#ifdef USE_FLAC
void FLACSound::sfxPlay(const char *name, bool isSpeech) {
      uint32 size;
      File *f = _vm->resource()->giveCompressedSound(name, &size);            
      _mixer->playInputStream(isSpeech ? &_speechHandle : &_sfxHandle, makeFlacStream(f, size), false);
}
#endif

} //End of namespace Queen

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