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https://github.com/libretro/scummvm.git
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249 lines
7.5 KiB
C++
249 lines
7.5 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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IMuseDigital::Track::Track()
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: soundId(-1), used(false), stream(NULL) {
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}
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void IMuseDigital::timer_handler(void *refCon) {
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IMuseDigital *imuseDigital = (IMuseDigital *)refCon;
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imuseDigital->callback();
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}
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IMuseDigital::IMuseDigital(ScummEngine *scumm)
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: _vm(scumm) {
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_mutex = g_system->createMutex();
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_pause = false;
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_sound = new ImuseDigiSndMgr(_vm);
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_volVoice = 0;
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_volSfx = 0;
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_volMusic = 0;
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resetState();
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_vm->_timer->installTimerProc(timer_handler, 1000000 / 25, this);
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}
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IMuseDigital::~IMuseDigital() {
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stopAllSounds(true);
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{
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Common::StackLock lock(_mutex, "IMuseDigital::~IMuseDigital()");
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_vm->_timer->removeTimerProc(timer_handler);
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}
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delete _sound;
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g_system->deleteMutex(_mutex);
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}
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void IMuseDigital::resetState() {
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_curMusicState = 0;
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_curMusicSeq = 0;
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_curMusicCue = 0;
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memset(_attributes, 0, sizeof(_attributes));
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_nextSeqToPlay = 0;
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}
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void IMuseDigital::callback() {
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Common::StackLock lock(_mutex, "IMuseDigital::callback()");
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int l = 0;
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if (_pause || !_vm)
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return;
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for (l = 0; l < MAX_DIGITAL_TRACKS;l ++) {
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if (_track[l].used) {
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if (_track[l].stream2) {
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if (!_track[l].handle.isActive() && _track[l].started) {
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debug(5, "IMuseDigital::callback(): stoped sound: %d", _track[l].soundId);
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delete _track[l].stream2;
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_track[l].stream2 = NULL;
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_track[l].used = false;
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continue;
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}
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} else if (_track[l].stream) {
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if (_track[l].toBeRemoved) {
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debug(5, "IMuseDigital::callback(): stoped sound: %d", _track[l].soundId);
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_track[l].stream->finish();
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_track[l].stream = NULL;
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_sound->closeSound(_track[l].soundHandle);
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_track[l].used = false;
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continue;
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}
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}
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if (_track[l].volFadeUsed) {
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if (_track[l].volFadeStep < 0) {
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if (_track[l].vol > _track[l].volFadeDest) {
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_track[l].vol += _track[l].volFadeStep;
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if (_track[l].vol < _track[l].volFadeDest) {
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_track[l].vol = _track[l].volFadeDest;
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_track[l].volFadeUsed = false;
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}
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if (_track[l].vol == 0) {
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_track[l].toBeRemoved = true;
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}
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}
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} else if (_track[l].volFadeStep > 0) {
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if (_track[l].vol < _track[l].volFadeDest) {
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_track[l].vol += _track[l].volFadeStep;
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if (_track[l].vol > _track[l].volFadeDest) {
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_track[l].vol = _track[l].volFadeDest;
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_track[l].volFadeUsed = false;
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}
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}
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}
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debug(5, "Fade: sound(%d), Vol(%d)", _track[l].soundId, _track[l].vol / 1000);
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}
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int pan = (_track[l].pan != 64) ? 2 * _track[l].pan - 127 : 0;
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int vol = _track[l].vol / 1000;
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if (_track[l].volGroupId == 1)
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vol = (vol * _volVoice) / 128;
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if (_track[l].volGroupId == 2)
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vol = (vol * _volSfx) / 128;
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if (_track[l].volGroupId == 3)
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vol = (vol * _volMusic) / 128;
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if (_vm->_mixer->isReady()) {
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if (_track[l].stream2) {
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if (!_track[l].started) {
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_track[l].started = true;
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_vm->_mixer->playInputStream(&_track[l].handle, _track[l].stream2, false, _track[l].vol / 1000, _track[l].pan, -1, false);
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} else {
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_vm->_mixer->setChannelVolume(_track[l].handle, vol);
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_vm->_mixer->setChannelBalance(_track[l].handle, pan);
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}
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continue;
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}
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}
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if (_track[l].stream) {
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int32 mixer_size = _track[l].pullSize;
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byte *data = NULL;
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int32 result = 0;
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if (_track[l].stream->endOfData()) {
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mixer_size *= 2;
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}
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if (_track[l].curRegion == -1)
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switchToNextRegion(l);
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int bits = _sound->getBits(_track[l].soundHandle);
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do {
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if (bits == 12) {
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byte *ptr = NULL;
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mixer_size += _track[l].mod;
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int mixer_size_12 = (mixer_size * 3) / 4;
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int length = (mixer_size_12 / 3) * 4;
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_track[l].mod = mixer_size - length;
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int32 offset = (_track[l].regionOffset * 3) / 4;
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int result2 = _sound->getDataFromRegion(_track[l].soundHandle, _track[l].curRegion, &ptr, offset, mixer_size_12);
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result = BundleCodecs::decode12BitsSample(ptr, &data, result2);
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free(ptr);
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} else if (bits == 16) {
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result = _sound->getDataFromRegion(_track[l].soundHandle, _track[l].curRegion, &data, _track[l].regionOffset, mixer_size);
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if (_sound->getChannels(_track[l].soundHandle) == 1) {
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result &= ~1;
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}
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if (_sound->getChannels(_track[l].soundHandle) == 2) {
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if (result & 2)
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result &= ~2;
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}
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} else if (bits == 8) {
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result = _sound->getDataFromRegion(_track[l].soundHandle, _track[l].curRegion, &data, _track[l].regionOffset, mixer_size);
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if (_sound->getChannels(_track[l].soundHandle) == 2) {
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result &= ~1;
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}
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}
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if (result > mixer_size)
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result = mixer_size;
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if (_vm->_mixer->isReady()) {
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_vm->_mixer->setChannelVolume(_track[l].handle, vol);
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_vm->_mixer->setChannelBalance(_track[l].handle, pan);
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_track[l].stream->append(data, result);
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_track[l].regionOffset += result;
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_track[l].trackOffset += result;
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free(data);
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}
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if (_sound->isEndOfRegion(_track[l].soundHandle, _track[l].curRegion)) {
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switchToNextRegion(l);
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if (_track[l].toBeRemoved)
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break;
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}
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mixer_size -= result;
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assert(mixer_size >= 0);
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} while (mixer_size != 0);
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}
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}
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}
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}
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void IMuseDigital::switchToNextRegion(int track) {
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int num_regions = _sound->getNumRegions(_track[track].soundHandle);
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if (++_track[track].curRegion == num_regions) {
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_track[track].toBeRemoved = true;
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return;
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}
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int jumpId = _sound->getJumpIdByRegion(_track[track].soundHandle, _track[track].curRegion);
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if (jumpId != -1) {
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int region = _sound->getRegionIdByJumpId(_track[track].soundHandle, jumpId);
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assert(region != -1);
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int sampleHookId = _sound->getJumpHookId(_track[track].soundHandle, jumpId);
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assert(sampleHookId != -1);
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if (sampleHookId != 0) {
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if (_track[track].curHookId == sampleHookId) {
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_track[track].curRegion = region;
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debug(5, "switchToNextRegion-sound(%d) jump to %d region, curHookId: %d", _track[track].soundId, _track[track].curRegion, _track[track].curHookId);
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_track[track].curHookId = 0;
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}
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} else {
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_track[track].curRegion = region;
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debug(5, "switchToNextRegion-sound(%d) jump to %d region, curHookId: %d", _track[track].soundId, _track[track].curRegion, _track[track].curHookId);
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}
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}
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debug(5, "switchToNextRegion-sound(%d) select %d region, curHookId: %d", _track[track].soundId, _track[track].curRegion, _track[track].curHookId);
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_track[track].dataOffset = _sound->getRegionOffset(_track[track].soundHandle, _track[track].curRegion);
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_track[track].regionOffset = 0;
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}
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} // End of namespace Scumm
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