scummvm/engines/scumm/imuse_digi/dimuse_track.cpp
Max Horn 1194495ad3 cleanup
svn-id: r30284
2008-01-06 00:09:05 +00:00

325 lines
9.9 KiB
C++

/* 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/timer.h"
#include "scumm/actor.h"
#include "scumm/intern.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 {
int IMuseDigital::allocSlot(int priority) {
int l, lowest_priority = 127;
int trackId = -1;
for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
if (!_track[l]->used) {
trackId = l;
break;
}
}
if (trackId == -1) {
debug(5, "IMuseDigital::allocSlot(): All slots are full");
for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved &&
(lowest_priority > track->soundPriority) && !track->souStreamUsed) {
lowest_priority = track->soundPriority;
trackId = l;
}
}
if (lowest_priority <= priority) {
assert(trackId != -1);
Track *track = _track[trackId];
// Stop the track immediately
_mixer->stopHandle(track->mixChanHandle);
if (!track->soundDesc) {
_sound->closeSound(track->soundDesc);
}
// Mark it as unused
memset(track, 0, sizeof(Track));
debug(5, "IMuseDigital::allocSlot(): Removed sound %d from track %d", _track[trackId]->soundId, trackId);
} else {
debug(5, "IMuseDigital::allocSlot(): Priority sound too low");
return -1;
}
}
return trackId;
}
void IMuseDigital::startSound(int soundId, const char *soundName, int soundType, int volGroupId, Audio::AudioStream *input, int hookId, int volume, int priority) {
Common::StackLock lock(_mutex, "IMuseDigital::startSound()");
debug(5, "IMuseDigital::startSound(%d)", soundId);
int l = allocSlot(priority);
if (l == -1) {
warning("IMuseDigital::startSound() Can't start sound - no free slots");
return;
}
Track *track = _track[l];
// Reset the track
memset(track, 0, sizeof(Track));
track->pan = 64;
track->vol = volume * 1000;
track->soundId = soundId;
track->volGroupId = volGroupId;
track->curHookId = hookId;
track->soundPriority = priority;
track->curRegion = -1;
track->soundType = soundType;
int bits = 0, freq = 0, channels = 0;
track->souStreamUsed = (input != 0);
if (track->souStreamUsed) {
_mixer->playInputStream(track->getType(), &track->mixChanHandle, input, -1, track->getVol(), track->getPan());
} else {
strcpy(track->soundName, soundName);
track->soundDesc = _sound->openSound(soundId, soundName, soundType, volGroupId, -1);
if (track->soundDesc == NULL)
return;
track->sndDataExtComp = _sound->isSndDataExtComp(track->soundDesc);
bits = _sound->getBits(track->soundDesc);
channels = _sound->getChannels(track->soundDesc);
freq = _sound->getFreq(track->soundDesc);
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->pan = a->_talkPan;
track->vol = a->_talkVolume * 1000;
}
}
assert(bits == 8 || bits == 12 || bits == 16);
assert(channels == 1 || channels == 2);
assert(0 < freq && freq <= 65535);
track->feedSize = freq * channels;
if (channels == 2)
track->mixerFlags = kFlagStereo | kFlagReverseStereo;
if ((bits == 12) || (bits == 16)) {
track->mixerFlags |= kFlag16Bits;
track->feedSize *= 2;
} else if (bits == 8) {
track->mixerFlags |= kFlagUnsigned;
} else
error("IMuseDigital::startSound(): Can't handle %d bit samples", bits);
#ifdef SCUMM_LITTLE_ENDIAN
if (track->sndDataExtComp)
track->mixerFlags |= kFlagLittleEndian;
#endif
track->stream = Audio::makeAppendableAudioStream(freq, makeMixerFlags(track->mixerFlags));
_mixer->playInputStream(track->getType(), &track->mixChanHandle, track->stream, -1, track->getVol(), track->getPan());
}
track->used = true;
}
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++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->soundId == soundId)) {
track->soundPriority = 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++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->soundId == soundId)) {
track->vol = volume * 1000;
}
}
}
void IMuseDigital::setHookId(int soundId, int hookId) {
Common::StackLock lock(_mutex, "IMuseDigital::setHookId()");
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->soundId == soundId)) {
track->curHookId = hookId;
}
}
}
int IMuseDigital::getCurMusicSoundId() {
Common::StackLock lock(_mutex, "IMuseDigital::getCurMusicSoundId()");
int soundId = -1;
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->volGroupId == IMUSE_VOLGRP_MUSIC)) {
soundId = track->soundId;
}
}
return soundId;
}
char *IMuseDigital::getCurMusicSoundName() {
Common::StackLock lock(_mutex, "IMuseDigital::getCurMusicSoundName()");
char *soundName = NULL;
for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->volGroupId == IMUSE_VOLGRP_MUSIC)) {
soundName = track->soundName;
}
}
return soundName;
}
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++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->soundId == soundId)) {
track->pan = pan;
}
}
}
void IMuseDigital::selectVolumeGroup(int soundId, int volGroupId) {
Common::StackLock lock(_mutex, "IMuseDigital::selectVolumeGroup()");
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++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->soundId == soundId)) {
track->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++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->soundId == soundId)) {
track->volFadeDelay = delay60HzTicks;
track->volFadeDest = destVolume * 1000;
track->volFadeStep = (track->volFadeDest - track->vol) * 60 * (1000 / _callbackFps) / (1000 * delay60HzTicks);
track->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++) {
Track *track = _track[l];
if (track->used && !track->toBeRemoved && (track->volGroupId == IMUSE_VOLGRP_MUSIC)) {
cloneToFadeOutTrack(track, fadeDelay);
flushTrack(track);
}
}
}
IMuseDigital::Track *IMuseDigital::cloneToFadeOutTrack(Track *track, int fadeDelay) {
assert(track);
Track *fadeTrack = 0;
debug(0, "IMuseDigital::cloneToFadeOutTrack(%d, %d)", track->trackId, fadeDelay);
if (track->toBeRemoved) {
error("IMuseDigital::cloneToFadeOutTrack: Tried to clone a track to be removed");
return NULL;
}
if (_track[track->trackId + MAX_DIGITAL_TRACKS]->used) {
warning("IMuseDigital::cloneToFadeOutTrack: No free fade track");
return NULL;
}
fadeTrack = _track[track->trackId + MAX_DIGITAL_TRACKS];
// Clone the settings of the given track
memcpy(fadeTrack, track, sizeof(Track));
// Clone the sound. We use the original sound in the fadeTrack,
// and the cloned sound in the original track. This fixes bug #1635361.
assert(fadeTrack->soundDesc);
track->soundDesc = _sound->cloneSound(fadeTrack->soundDesc);
assert(track->soundDesc);
// Set the volume fading parameters to indicate a fade out
fadeTrack->volFadeDelay = fadeDelay;
fadeTrack->volFadeDest = 0;
fadeTrack->volFadeStep = (fadeTrack->volFadeDest - fadeTrack->vol) * 60 * (1000 / _callbackFps) / (1000 * fadeDelay);
fadeTrack->volFadeUsed = true;
// Create an appendable output buffer
fadeTrack->stream = Audio::makeAppendableAudioStream(_sound->getFreq(fadeTrack->soundDesc), makeMixerFlags(fadeTrack->mixerFlags));
_mixer->playInputStream(track->getType(), &fadeTrack->mixChanHandle, fadeTrack->stream, -1, fadeTrack->getVol(), fadeTrack->getPan());
fadeTrack->used = true;
return fadeTrack;
}
} // End of namespace Scumm