mirror of
https://github.com/libretro/scummvm.git
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314 lines
11 KiB
C++
314 lines
11 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2001-2004 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*/
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#include "stdafx.h"
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#include "common/timer.h"
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#include "scumm/actor.h"
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#include "scumm/scumm.h"
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#include "scumm/sound.h"
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#include "scumm/imuse_digi/dimuse.h"
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#include "scumm/imuse_digi/dimuse_bndmgr.h"
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#include "sound/audiostream.h"
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#include "sound/mixer.h"
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namespace Scumm {
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void IMuseDigital::allocSlot(int priority) {
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int l;
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int lower_priority = 127;
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bool found_free = false;
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for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if (!_track[l]->used && !_track[l]->handle.isActive())
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found_free = true;
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}
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if (!found_free) {
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warning("IMuseDigital::startSound(): All slots are full");
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for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if (_track[l]->used && _track[l]->handle.isActive() &&
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(lower_priority > _track[l]->priority) && (!_track[l]->stream2))
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lower_priority = _track[l]->priority;
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}
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if (lower_priority <= priority) {
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int track_id = -1;
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for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if (_track[l]->used && _track[l]->handle.isActive() &&
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(lower_priority == _track[l]->priority) && (!_track[l]->stream2)) {
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track_id = l;
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}
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}
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assert(track_id != -1);
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_track[track_id]->stream->finish();
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_track[track_id]->stream = NULL;
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_vm->_mixer->stopHandle(_track[track_id]->handle);
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_sound->closeSound(_track[track_id]->soundHandle);
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_track[track_id]->used = false;
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assert(!_track[track_id]->handle.isActive());
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warning("IMuseDigital::startSound(): Removed sound %d from track %d", _track[track_id]->soundId, track_id);
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} else {
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warning("IMuseDigital::startSound(): Priority sound too low");
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return;
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}
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}
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}
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void IMuseDigital::startSound(int soundId, const char *soundName, int soundType, int volGroupId, AudioStream *input, int hookId, int volume, int priority) {
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Common::StackLock lock(_mutex, "IMuseDigital::startSound()");
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debug(5, "IMuseDigital::startSound(%d)", soundId);
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int l;
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allocSlot(priority);
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for (l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if (!_track[l]->used && !_track[l]->handle.isActive()) {
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_track[l]->pan = 64;
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_track[l]->vol = volume * 1000;
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_track[l]->volFadeDest = 0;
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_track[l]->volFadeStep = 0;
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_track[l]->volFadeDelay = 0;
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_track[l]->volFadeUsed = false;
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_track[l]->soundId = soundId;
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_track[l]->started = false;
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_track[l]->volGroupId = volGroupId;
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_track[l]->curHookId = hookId;
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_track[l]->priority = priority;
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_track[l]->curRegion = -1;
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_track[l]->dataOffset = 0;
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_track[l]->regionOffset = 0;
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_track[l]->trackOffset = 0;
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_track[l]->mod = 0;
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_track[l]->mixerFlags = 0;
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_track[l]->mixerPan = 0;
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_track[l]->mixerVol = volume;
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_track[l]->toBeRemoved = false;
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int bits = 0, freq = 0, channels = 0;
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if (input) {
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_track[l]->iteration = 1; // ?
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// Do nothing here, we already have an audio stream
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} else {
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_track[l]->soundHandle = _sound->openSound(soundId, soundName, soundType, volGroupId);
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if (_track[l]->soundHandle == NULL)
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return;
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bits = _sound->getBits(_track[l]->soundHandle);
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channels = _sound->getChannels(_track[l]->soundHandle);
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freq = _sound->getFreq(_track[l]->soundHandle);
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if ((soundId == kTalkSoundID) && (soundType == IMUSE_BUNDLE)) {
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if (_vm->_actorToPrintStrFor != 0xFF && _vm->_actorToPrintStrFor != 0) {
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Actor *a = _vm->derefActor(_vm->_actorToPrintStrFor, "IMuseDigital::startSound");
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freq = (freq * a->talkFrequency) / 256;
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_track[l]->pan = a->talkPan;
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_track[l]->vol = a->talkVolume * 1000;
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}
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}
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assert(bits == 8 || bits == 12 || bits == 16);
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assert(channels == 1 || channels == 2);
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assert(0 < freq && freq <= 65535);
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// Round the frequency to a multiple of 25. This is done to
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// ensure we don't run into data under-/overflows (this is a
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// design limitation of the current IMuseDigital code, which
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// pushes data 'blindly' into the mixer, instead of providing
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// a pull based interface, i.e. a custom AudioInputStream
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// subclass).
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freq -= (freq % 25);
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_track[l]->iteration = freq * channels;
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_track[l]->pullSize = _track[l]->iteration;
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if (channels == 2)
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_track[l]->mixerFlags = SoundMixer::FLAG_STEREO | SoundMixer::FLAG_REVERSE_STEREO;
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if ((bits == 12) || (bits == 16)) {
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_track[l]->mixerFlags |= SoundMixer::FLAG_16BITS;
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_track[l]->iteration *= 2;
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_track[l]->pullSize = _track[l]->iteration;
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} else if (bits == 8) {
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_track[l]->mixerFlags |= SoundMixer::FLAG_UNSIGNED;
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} else
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error("IMuseDigital::startSound(): Can't handle %d bit samples", bits);
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_track[l]->pullSize /= 25; // We want a "frame rate" of 25 audio blocks per second
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}
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if (input) {
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_track[l]->stream2 = input;
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_track[l]->stream = NULL;
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_track[l]->started = false;
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} else {
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_track[l]->stream2 = NULL;
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_track[l]->stream = makeAppendableAudioStream(freq, _track[l]->mixerFlags, 100000);
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_vm->_mixer->playInputStream(&_track[l]->handle, _track[l]->stream, false, _track[l]->vol / 1000, _track[l]->pan, -1);
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_track[l]->started = true;
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}
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_track[l]->used = true;
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return;
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}
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}
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error("IMuseDigital::startSound(): We should never get here");
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}
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void IMuseDigital::setPriority(int soundId, int priority) {
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Common::StackLock lock(_mutex, "IMuseDigital::setPriority()");
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debug(5, "IMuseDigital::setPriority(%d, %d)", soundId, priority);
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assert ((priority >= 0) && (priority <= 127));
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for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if ((_track[l]->soundId == soundId) && _track[l]->used) {
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_track[l]->priority = priority;
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}
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}
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}
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void IMuseDigital::setVolume(int soundId, int volume) {
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Common::StackLock lock(_mutex, "IMuseDigital::setVolume()");
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debug(5, "IMuseDigital::setVolume(%d, %d)", soundId, volume);
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for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if ((_track[l]->soundId == soundId) && _track[l]->used) {
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_track[l]->vol = volume * 1000;
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}
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}
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}
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void IMuseDigital::setPan(int soundId, int pan) {
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Common::StackLock lock(_mutex, "IMuseDigital::setPan()");
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debug(5, "IMuseDigital::setPan(%d, %d)", soundId, pan);
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for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if ((_track[l]->soundId == soundId) && _track[l]->used) {
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_track[l]->pan = pan;
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}
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}
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}
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void IMuseDigital::selectVolumeGroup(int soundId, int volGroupId) {
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Common::StackLock lock(_mutex, "IMuseDigital::setGroupVolume()");
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debug(5, "IMuseDigital::setGroupVolume(%d, %d)", soundId, volGroupId);
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assert((volGroupId >= 1) && (volGroupId <= 4));
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if (volGroupId == 4)
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volGroupId = 3;
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for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if ((_track[l]->soundId == soundId) && _track[l]->used) {
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_track[l]->volGroupId = volGroupId;
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}
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}
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}
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void IMuseDigital::setFade(int soundId, int destVolume, int delay60HzTicks) {
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Common::StackLock lock(_mutex, "IMuseDigital::setFade()");
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debug(5, "IMuseDigital::setFade(%d, %d, %d)", soundId, destVolume, delay60HzTicks);
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for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if ((_track[l]->soundId == soundId) && _track[l]->used) {
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_track[l]->volFadeDelay = delay60HzTicks;
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_track[l]->volFadeDest = destVolume * 1000;
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_track[l]->volFadeStep = (_track[l]->volFadeDest - _track[l]->vol) * 60 * 40 / (1000 * delay60HzTicks);
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_track[l]->volFadeUsed = true;
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}
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}
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}
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void IMuseDigital::fadeOutMusic(int fadeDelay) {
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Common::StackLock lock(_mutex, "IMuseDigital::fadeOutMusic()");
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debug(5, "IMuseDigital::fadeOutMusic");
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for (int l = 0; l < MAX_DIGITAL_TRACKS; l++) {
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if ((_track[l]->used) && (_track[l]->volGroupId == IMUSE_VOLGRP_MUSIC)) {
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cloneToFadeOutTrack(l, fadeDelay, true);
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}
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}
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}
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int IMuseDigital::cloneToFadeOutTrack(int track, int fadeDelay, int killNormalTrack) {
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Common::StackLock lock(_mutex, "IMuseDigital::cloneToFadeOutTrack()");
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debug(5, "IMuseDigital::cloneToFadeOutTrack(%d, %d)", track, fadeDelay);
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int fadeTrack = -1;
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for (int l = MAX_DIGITAL_TRACKS; l < MAX_DIGITAL_TRACKS + MAX_DIGITAL_FADETRACKS; l++) {
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if (!_track[l]->used) {
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fadeTrack = l;
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break;
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}
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}
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if (fadeTrack == -1)
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error("IMuseDigital::cloneToFadeTrack() Can't find free fade track");
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// swap track to fade track
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Track *tmpTrack = _track[track];
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_track[track] = _track[fadeTrack];
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_track[fadeTrack] = tmpTrack;
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// copy track params from swaped fade track to new track
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_track[track]->pan = _track[fadeTrack]->pan;
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_track[track]->vol = _track[fadeTrack]->vol;
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_track[track]->volGroupId = _track[fadeTrack]->volGroupId;
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_track[track]->volFadeDelay = _track[fadeTrack]->volFadeDelay;
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_track[track]->volFadeDest = _track[fadeTrack]->volFadeDest;
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_track[track]->volFadeStep = _track[fadeTrack]->volFadeStep;
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_track[track]->volFadeUsed = _track[fadeTrack]->volFadeUsed;
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_track[track]->priority = _track[fadeTrack]->priority;
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_track[track]->soundId = _track[fadeTrack]->soundId;
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_track[track]->dataOffset = _track[fadeTrack]->dataOffset;
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_track[track]->regionOffset = _track[fadeTrack]->regionOffset;
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_track[track]->trackOffset = _track[fadeTrack]->trackOffset;
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_track[track]->curRegion = _track[fadeTrack]->curRegion;
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_track[track]->curHookId = _track[fadeTrack]->curHookId;
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_track[track]->iteration = _track[fadeTrack]->iteration;
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_track[track]->mixerFlags = _track[fadeTrack]->mixerFlags;
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_track[track]->mixerVol = _track[fadeTrack]->mixerVol;
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_track[track]->mixerPan = _track[fadeTrack]->mixerPan;
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_track[track]->mod = _track[fadeTrack]->mod;
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_track[track]->pullSize = _track[fadeTrack]->pullSize;
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_track[track]->used = _track[fadeTrack]->used;
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_track[track]->toBeRemoved = _track[fadeTrack]->toBeRemoved;
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_track[track]->started = _track[fadeTrack]->started;
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_track[track]->stream2 = _track[fadeTrack]->stream2;
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_track[track]->soundHandle = NULL;
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_track[track]->stream = NULL;
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_track[fadeTrack]->volFadeDelay = fadeDelay;
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_track[fadeTrack]->volFadeDest = 0;
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_track[fadeTrack]->volFadeStep = (_track[fadeTrack]->volFadeDest - _track[fadeTrack]->vol) * 60 * 40 / (1000 * fadeDelay);
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_track[fadeTrack]->volFadeUsed = true;
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if (killNormalTrack) {
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_track[track]->used = false;
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} else {
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_track[track]->soundHandle = _sound->cloneSound(_track[fadeTrack]->soundHandle);
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_track[track]->stream = makeAppendableAudioStream(_sound->getFreq(_track[track]->soundHandle), _track[track]->mixerFlags, 100000);
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_vm->_mixer->playInputStream(&_track[track]->handle, _track[track]->stream, false, _track[track]->vol / 1000, _track[track]->pan, -1);
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_track[track]->started = true;
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}
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return fadeTrack;
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}
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} // End of namespace Scumm
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