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/* ScummVM - Scumm Interpreter
* 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.
*
* $Header$
*/
#include "stdafx.h"
#include "common/timer.h"
#include "scumm/actor.h"
#include "scumm/scumm.h"
#include "scumm/sound.h"
#include "scumm/imuse_digi/dimuse.h"
#include "scumm/imuse_digi/dimuse_bndmgr.h"
#include "sound/audiostream.h"
#include "sound/mixer.h"
namespace Scumm {
void IMuseDigital::allocSlot(int priority) {
int l;
int lower_priority = 127;
bool found_free = false;
for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if (!_track[l]->used && !_track[l]->handle.isActive())
found_free = true;
}
if (!found_free) {
warning("IMuseDigital::startSound(): All slots are full");
for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if (_track[l]->used && _track[l]->handle.isActive() &&
(lower_priority > _track[l]->priority) && (!_track[l]->stream2))
lower_priority = _track[l]->priority;
}
if (lower_priority <= priority) {
int track_id = -1;
for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if (_track[l]->used && _track[l]->handle.isActive() &&
(lower_priority == _track[l]->priority) && (!_track[l]->stream2)) {
track_id = l;
}
}
assert(track_id != -1);
#ifndef ENABLE_PULLMETHOD
_track[track_id]->stream->finish();
_track[track_id]->stream = NULL;
_vm->_mixer->stopHandle(_track[track_id]->handle);
#else
_vm->_mixer->stopHandle(_track[track_id]->handle);
_track[track_id]->stream = NULL;
#endif
_sound->closeSound(_track[track_id]->soundHandle);
_track[track_id]->used = false;
assert(!_track[track_id]->handle.isActive());
warning("IMuseDigital::startSound(): Removed sound %d from track %d", _track[track_id]->soundId, track_id);
} else {
warning("IMuseDigital::startSound(): Priority sound too low");
return;
}
}
}
void IMuseDigital::startSound(int soundId, const char *soundName, int soundType, int volGroupId, AudioStream *input, int hookId, int volume, int priority) {
Common::StackLock lock(_mutex, "IMuseDigital::startSound()");
debug(5, "IMuseDigital::startSound(%d)", soundId);
int l;
allocSlot(priority);
for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if (!_track[l]->used && !_track[l]->handle.isActive()) {
_track[l]->pan = 64;
_track[l]->vol = volume * 1000;
_track[l]->volFadeDest = 0;
_track[l]->volFadeStep = 0;
_track[l]->volFadeDelay = 0;
_track[l]->volFadeUsed = false;
_track[l]->soundId = soundId;
_track[l]->started = false;
_track[l]->volGroupId = volGroupId;
_track[l]->curHookId = hookId;
_track[l]->priority = priority;
_track[l]->curRegion = -1;
_track[l]->dataOffset = 0;
_track[l]->regionOffset = 0;
_track[l]->trackOffset = 0;
_track[l]->mod = 0;
_track[l]->mixerFlags = 0;
_track[l]->mixerPan = 0;
_track[l]->mixerVol = volume;
_track[l]->toBeRemoved = false;
int bits = 0, freq = 0, channels = 0;
if (input) {
_track[l]->iteration = 1; // ?
// Do nothing here, we already have an audio stream
} else {
_track[l]->soundHandle = _sound->openSound(soundId, soundName, soundType, volGroupId);
if (_track[l]->soundHandle == NULL)
return;
bits = _sound->getBits(_track[l]->soundHandle);
channels = _sound->getChannels(_track[l]->soundHandle);
freq = _sound->getFreq(_track[l]->soundHandle);
if ((soundId == kTalkSoundID) && (soundType == IMUSE_BUNDLE)) {
if (_vm->_actorToPrintStrFor != 0xFF && _vm->_actorToPrintStrFor != 0) {
Actor *a = _vm->derefActor(_vm->_actorToPrintStrFor, "IMuseDigital::startSound");
freq = (freq * a->talkFrequency) / 256;
_track[l]->pan = a->talkPan;
_track[l]->vol = a->talkVolume * 1000;
}
}
assert(bits == 8 || bits == 12 || bits == 16);
assert(channels == 1 || channels == 2);
assert(0 < freq && freq <= 65535);
// Round the frequency to a multiple of 25. This is done to
// ensure we don't run into data under-/overflows (this is a
// design limitation of the current IMuseDigital code, which
// pushes data 'blindly' into the mixer, instead of providing
// a pull based interface, i.e. a custom AudioInputStream
// subclass).
freq -= (freq % 25);
_track[l]->iteration = freq * channels;
#ifndef ENABLE_PULLMETHOD
_track[l]->pullSize = _track[l]->iteration;
#endif
if (channels == 2)
_track[l]->mixerFlags = SoundMixer::FLAG_STEREO | SoundMixer::FLAG_REVERSE_STEREO;
if ((bits == 12) || (bits == 16)) {
_track[l]->mixerFlags |= SoundMixer::FLAG_16BITS;
_track[l]->iteration *= 2;
#ifndef ENABLE_PULLMETHOD
_track[l]->pullSize = _track[l]->iteration;
#endif
} else if (bits == 8) {
_track[l]->mixerFlags |= SoundMixer::FLAG_UNSIGNED;
} else
error("IMuseDigital::startSound(): Can't handle %d bit samples", bits);
#ifndef ENABLE_PULLMETHOD
_track[l]->pullSize /= 25; // We want a "frame rate" of 25 audio blocks per second
#endif
}
if (input) {
_track[l]->stream2 = input;
_track[l]->stream = NULL;
_track[l]->started = false;
} else {
_track[l]->stream2 = NULL;
#ifndef ENABLE_PULLMETHOD
_track[l]->stream = makeAppendableAudioStream(freq, _track[l]->mixerFlags, 100000);
#else
_track[l]->stream = new CustomProcInputStream(freq, _track[l]->mixerFlags, (CustomProcInputStream::CustomInputProc)pullProcCallback, this);
#endif
_vm->_mixer->playInputStream(&_track[l]->handle, _track[l]->stream, false, _track[l]->vol / 1000, _track[l]->pan, -1);
_track[l]->started = true;
}
_track[l]->used = true;
return;
}
}
error("IMuseDigital::startSound(): We should never get here");
}
void IMuseDigital::setPriority(int soundId, int priority) {
Common::StackLock lock(_mutex, "IMuseDigital::setPriority()");
debug(5, "IMuseDigital::setPriority(%d, %d)", soundId, priority);
assert ((priority >= 0) && (priority <= 127));
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if ((_track[l]->soundId == soundId) && _track[l]->used) {
_track[l]->priority = priority;
}
}
}
void IMuseDigital::setVolume(int soundId, int volume) {
Common::StackLock lock(_mutex, "IMuseDigital::setVolume()");
debug(5, "IMuseDigital::setVolume(%d, %d)", soundId, volume);
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if ((_track[l]->soundId == soundId) && _track[l]->used) {
_track[l]->vol = volume * 1000;
}
}
}
void IMuseDigital::setPan(int soundId, int pan) {
Common::StackLock lock(_mutex, "IMuseDigital::setPan()");
debug(5, "IMuseDigital::setPan(%d, %d)", soundId, pan);
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if ((_track[l]->soundId == soundId) && _track[l]->used) {
_track[l]->pan = pan;
}
}
}
void IMuseDigital::selectVolumeGroup(int soundId, int volGroupId) {
Common::StackLock lock(_mutex, "IMuseDigital::setGroupVolume()");
debug(5, "IMuseDigital::setGroupVolume(%d, %d)", soundId, volGroupId);
assert((volGroupId >= 1) && (volGroupId <= 4));
if (volGroupId == 4)
volGroupId = 3;
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if ((_track[l]->soundId == soundId) && _track[l]->used) {
_track[l]->volGroupId = volGroupId;
}
}
}
void IMuseDigital::setFade(int soundId, int destVolume, int delay60HzTicks) {
Common::StackLock lock(_mutex, "IMuseDigital::setFade()");
debug(5, "IMuseDigital::setFade(%d, %d, %d)", soundId, destVolume, delay60HzTicks);
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if ((_track[l]->soundId == soundId) && _track[l]->used) {
_track[l]->volFadeDelay = delay60HzTicks;
_track[l]->volFadeDest = destVolume * 1000;
_track[l]->volFadeStep = (_track[l]->volFadeDest - _track[l]->vol) * 60 * 40 / (1000 * delay60HzTicks);
_track[l]->volFadeUsed = true;
}
}
}
void IMuseDigital::fadeOutMusic(int fadeDelay) {
Common::StackLock lock(_mutex, "IMuseDigital::fadeOutMusic()");
debug(5, "IMuseDigital::fadeOutMusic");
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if ((_track[l]->used) && (_track[l]->volGroupId == IMUSE_VOLGRP_MUSIC)) {
cloneToFadeOutTrack(l, fadeDelay, true);
}
}
}
int IMuseDigital::cloneToFadeOutTrack(int track, int fadeDelay, int killNormalTrack) {
Common::StackLock lock(_mutex, "IMuseDigital::cloneToFadeOutTrack()");
debug(5, "IMuseDigital::cloneToFadeOutTrack(%d, %d)", track, fadeDelay);
int fadeTrack = -1;
for (int l = MAX_DIGITAL_TRACKS; l < MAX_DIGITAL_TRACKS + MAX_DIGITAL_FADETRACKS; l++) {
if (!_track[l]->used) {
fadeTrack = l;
break;
}
}
if (fadeTrack == -1)
error("IMuseDigital::cloneToFadeTrack() Can't find free fade track");
// swap track to fade track
Track *tmpTrack = _track[track];
_track[track] = _track[fadeTrack];
_track[fadeTrack] = tmpTrack;
// copy track params from swaped fade track to new track
_track[track]->pan = _track[fadeTrack]->pan;
_track[track]->vol = _track[fadeTrack]->vol;
_track[track]->volGroupId = _track[fadeTrack]->volGroupId;
_track[track]->volFadeDelay = _track[fadeTrack]->volFadeDelay;
_track[track]->volFadeDest = _track[fadeTrack]->volFadeDest;
_track[track]->volFadeStep = _track[fadeTrack]->volFadeStep;
_track[track]->volFadeUsed = _track[fadeTrack]->volFadeUsed;
_track[track]->priority = _track[fadeTrack]->priority;
_track[track]->soundId = _track[fadeTrack]->soundId;
_track[track]->dataOffset = _track[fadeTrack]->dataOffset;
_track[track]->regionOffset = _track[fadeTrack]->regionOffset;
_track[track]->trackOffset = _track[fadeTrack]->trackOffset;
_track[track]->curRegion = _track[fadeTrack]->curRegion;
_track[track]->curHookId = _track[fadeTrack]->curHookId;
_track[track]->iteration = _track[fadeTrack]->iteration;
_track[track]->mixerFlags = _track[fadeTrack]->mixerFlags;
_track[track]->mixerVol = _track[fadeTrack]->mixerVol;
_track[track]->mixerPan = _track[fadeTrack]->mixerPan;
_track[track]->mod = _track[fadeTrack]->mod;
#ifndef ENABLE_PULLMETHOD
_track[track]->pullSize = _track[fadeTrack]->pullSize;
#endif
_track[track]->used = _track[fadeTrack]->used;
_track[track]->toBeRemoved = _track[fadeTrack]->toBeRemoved;
_track[track]->started = _track[fadeTrack]->started;
_track[track]->stream2 = _track[fadeTrack]->stream2;
_track[track]->soundHandle = NULL;
_track[track]->stream = NULL;
_track[fadeTrack]->volFadeDelay = fadeDelay;
_track[fadeTrack]->volFadeDest = 0;
_track[fadeTrack]->volFadeStep = (_track[fadeTrack]->volFadeDest - _track[fadeTrack]->vol) * 60 * 40 / (1000 * fadeDelay);
_track[fadeTrack]->volFadeUsed = true;
if (killNormalTrack) {
_track[track]->used = false;
} else {
_track[track]->soundHandle = _sound->cloneSound(_track[fadeTrack]->soundHandle);
#ifndef ENABLE_PULLMETHOD
_track[track]->stream = makeAppendableAudioStream(_sound->getFreq(_track[track]->soundHandle), _track[track]->mixerFlags, 100000);
#else
_track[track]->stream = new CustomProcInputStream(_sound->getFreq(_track[track]->soundHandle), _track[track]->mixerFlags, (CustomProcInputStream::CustomInputProc)pullProcCallback, this);
#endif
_vm->_mixer->playInputStream(&_track[track]->handle, _track[track]->stream, false, _track[track]->vol / 1000, _track[track]->pan, -1);
_track[track]->started = true;
}
return fadeTrack;
}
} // End of namespace Scumm
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