Logo Search packages:      
Sourcecode: scummvm version File versions  Download package

sound.cpp

/* 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: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-0-11-1/engines/saga/sound.cpp $
 * $Id: sound.cpp 30944 2008-02-23 22:50:18Z sev $
 *
 */
#include "saga/saga.h"

#include "saga/sound.h"

#include "sound/audiostream.h"
#include "sound/mixer.h"
#include "sound/adpcm.h"

namespace Saga {

Sound::Sound(SagaEngine *vm, Audio::Mixer *mixer, int volume) :
      _vm(vm), _mixer(mixer), _voxStream(0) {

      for (int i = 0; i < SOUND_HANDLES; i++)
            _handles[i].type = kFreeHandle;

      setVolume(volume == 10 ? 255 : volume * 25);
}

Sound::~Sound() {
      delete _voxStream;
}

SndHandle *Sound::getHandle() {
      for (int i = 0; i < SOUND_HANDLES; i++) {
            if (_handles[i].type == kFreeHandle)
                  return &_handles[i];

            if (!_mixer->isSoundHandleActive(_handles[i].handle)) {
                  _handles[i].type = kFreeHandle;
                  return &_handles[i];
            }
      }

      error("Sound::getHandle(): Too many sound handles");

      return NULL;
}

void Sound::playSoundBuffer(Audio::SoundHandle *handle, SoundBuffer &buffer, int volume, bool loop) {
      byte flags;

      flags = Audio::Mixer::FLAG_AUTOFREE;

      if (loop)
            flags |= Audio::Mixer::FLAG_LOOP;

      if (buffer.sampleBits == 16) {
            flags |= Audio::Mixer::FLAG_16BITS;

            if (!buffer.isBigEndian)
                  flags |= Audio::Mixer::FLAG_LITTLE_ENDIAN;
      }
      if (buffer.stereo)
            flags |= Audio::Mixer::FLAG_STEREO;
      if (!buffer.isSigned)
            flags |= Audio::Mixer::FLAG_UNSIGNED;

      if (!(_vm->getFeatures() & GF_COMPRESSED_SOUNDS)) {
            _mixer->playRaw(Audio::Mixer::kSFXSoundType, handle, buffer.buffer, buffer.size, buffer.frequency, flags, -1, volume);
      } else {
            Audio::AudioStream *stream = NULL;
            MemoryReadStream *tmp = NULL;

            switch (buffer.soundType) {
#ifdef USE_MAD
                  case kSoundMP3:
                        debug(1, "Playing MP3 compressed sound");
                        buffer.soundFile->seek((long)buffer.fileOffset, SEEK_SET);
                        tmp = buffer.soundFile->readStream(buffer.size);
                        assert(tmp);
                        stream = Audio::makeMP3Stream(tmp, true);
                        break;
#endif
#ifdef USE_VORBIS
                  case kSoundOGG:
                        debug(1, "Playing OGG compressed sound");
                        buffer.soundFile->seek((long)buffer.fileOffset, SEEK_SET);
                        tmp = buffer.soundFile->readStream(buffer.size);
                        assert(tmp);
                        stream = Audio::makeVorbisStream(tmp, true);
                        break;
#endif
#ifdef USE_FLAC
                  case kSoundFLAC:
                        debug(1, "Playing FLAC compressed sound");
                        buffer.soundFile->seek((long)buffer.fileOffset, SEEK_SET);
                        tmp = buffer.soundFile->readStream(buffer.size);
                        assert(tmp);
                        stream = Audio::makeFlacStream(tmp, true);
                        break;
#endif
                  default:
                        // No compression, play it as raw sound
                        _mixer->playRaw(Audio::Mixer::kSFXSoundType, handle, buffer.buffer, buffer.size, buffer.frequency, flags, -1, volume);
                        break;
            }

            if (stream != NULL)
                  _mixer->playInputStream(Audio::Mixer::kSFXSoundType, handle, stream, -1, volume, 0, true, false);
      }
}

void Sound::playSound(SoundBuffer &buffer, int volume, bool loop) {
      SndHandle *handle = getHandle();

      handle->type = kEffectHandle;
      playSoundBuffer(&handle->handle, buffer, 2 * volume, loop);
}

void Sound::pauseSound() {
      for (int i = 0; i < SOUND_HANDLES; i++)
            if (_handles[i].type == kEffectHandle)
                  _mixer->pauseHandle(_handles[i].handle, true);
}

void Sound::resumeSound() {
      for (int i = 0; i < SOUND_HANDLES; i++)
            if (_handles[i].type == kEffectHandle)
                  _mixer->pauseHandle(_handles[i].handle, false);
}

void Sound::stopSound() {
      for (int i = 0; i < SOUND_HANDLES; i++)
            if (_handles[i].type == kEffectHandle) {
                  _mixer->stopHandle(_handles[i].handle);
                  _handles[i].type = kFreeHandle;
            }
}

void Sound::playVoice(SoundBuffer &buffer) {
      SndHandle *handle = getHandle();

      handle->type = kVoiceHandle;
      playSoundBuffer(&handle->handle, buffer, 255, false);
}

void Sound::pauseVoice() {
      for (int i = 0; i < SOUND_HANDLES; i++)
            if (_handles[i].type == kVoiceHandle)
                  _mixer->pauseHandle(_handles[i].handle, true);
}

void Sound::resumeVoice() {
      for (int i = 0; i < SOUND_HANDLES; i++)
            if (_handles[i].type == kVoiceHandle)
                  _mixer->pauseHandle(_handles[i].handle, false);
}

void Sound::stopVoice() {
      for (int i = 0; i < SOUND_HANDLES; i++)
            if (_handles[i].type == kVoiceHandle) {
                  _mixer->stopHandle(_handles[i].handle);
                  _handles[i].type = kFreeHandle;
            }
}

void Sound::stopAll() {
      stopVoice();
      stopSound();
}

void Sound::setVolume(int volume) {
      _mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, volume);
      _mixer->setVolumeForSoundType(Audio::Mixer::kSpeechSoundType, volume);
}

} // End of namespace Saga

Generated by  Doxygen 1.6.0   Back to index