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/* 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.
*
* $URL$
* $Id$
*
*/
/*
* This code is based on original Hugo Trilogy source code
*
* Copyright (c) 1989-1995 David P. Gray
*
*/
/* sound.c - sound effects and music support */
#include "common/system.h"
#include "common/config-manager.h"
#include "sound/decoders/raw.h"
#include "sound/audiostream.h"
#include "hugo/hugo.h"
#include "hugo/game.h"
#include "hugo/file.h"
#include "hugo/sound.h"
namespace Hugo {
MidiPlayer::MidiPlayer(MidiDriver *driver)
: _driver(driver), _parser(0), _midiData(0), _isLooping(false), _isPlaying(false), _paused(false), _masterVolume(0) {
assert(_driver);
memset(_channelsTable, 0, sizeof(_channelsTable));
for (int i = 0; i < NUM_CHANNELS; i++) {
_channelsVolume[i] = 127;
}
}
MidiPlayer::~MidiPlayer() {
close();
}
void MidiPlayer::play(uint8 *stream, uint16 size) {
debugC(3, kDebugMusic, "MidiPlayer::play");
if (!stream) {
stop();
return;
}
_midiData = (uint8 *)malloc(size);
if (_midiData) {
memcpy(_midiData, stream, size);
_mutex.lock();
syncVolume();
_parser->loadMusic(_midiData, size);
_parser->setTrack(0);
_isLooping = true;
_isPlaying = true;
_mutex.unlock();
}
}
void MidiPlayer::stop() {
debugC(3, kDebugMusic, "MidiPlayer::stop");
_mutex.lock();
if (_isPlaying) {
_isPlaying = false;
_parser->unloadMusic();
free(_midiData);
_midiData = 0;
}
_mutex.unlock();
}
void MidiPlayer::pause(bool p) {
_paused = p;
for (int i = 0; i < NUM_CHANNELS; ++i) {
if (_channelsTable[i]) {
_channelsTable[i]->volume(_paused ? 0 : _channelsVolume[i] * _masterVolume / 255);
}
}
}
void MidiPlayer::updateTimer() {
if (_paused) {
return;
}
_mutex.lock();
if (_isPlaying) {
_parser->onTimer();
}
_mutex.unlock();
}
void MidiPlayer::adjustVolume(int diff) {
debugC(3, kDebugMusic, "MidiPlayer::adjustVolume");
setVolume(_masterVolume + diff);
}
void MidiPlayer::syncVolume() {
int volume = ConfMan.getInt("music_volume");
if (ConfMan.getBool("mute")) {
volume = -1;
}
debugC(2, kDebugMusic, "Syncing music volume to %d", volume);
setVolume(volume);
}
void MidiPlayer::setVolume(int volume) {
debugC(3, kDebugMusic, "MidiPlayer::setVolume");
_masterVolume = CLIP(volume, 0, 255);
_mutex.lock();
for (int i = 0; i < NUM_CHANNELS; ++i) {
if (_channelsTable[i]) {
_channelsTable[i]->volume(_channelsVolume[i] * _masterVolume / 255);
}
}
_mutex.unlock();
}
void MidiPlayer::setChannelVolume(int channel) {
int newVolume = _channelsVolume[channel] * _masterVolume / 255;
debugC(3, kDebugMusic, "Music channel %d: volume %d->%d",
channel, _channelsVolume[channel], newVolume);
_channelsTable[channel]->volume(newVolume);
}
int MidiPlayer::open() {
if (!_driver)
return 255;
int ret = _driver->open();
if (ret)
return ret;
_driver->sendGMReset();
_parser = MidiParser::createParser_SMF();
_parser->setMidiDriver(this);
_parser->setTimerRate(_driver->getBaseTempo());
_driver->setTimerCallback(this, &timerCallback);
return 0;
}
void MidiPlayer::close() {
stop();
_mutex.lock();
_driver->setTimerCallback(0, 0);
_driver->close();
delete _driver;
_driver = 0;
if (_parser)
_parser->setMidiDriver(0);
delete _parser;
_mutex.unlock();
}
void MidiPlayer::send(uint32 b) {
byte volume, ch = (byte)(b & 0xF);
debugC(9, kDebugMusic, "MidiPlayer::send, channel %d (volume is %d)", ch, _channelsVolume[ch]);
switch (b & 0xFFF0) {
case 0x07B0: // volume change
volume = (byte)((b >> 16) & 0x7F);
_channelsVolume[ch] = volume;
volume = volume * _masterVolume / 255;
b = (b & 0xFF00FFFF) | (volume << 16);
debugC(8, kDebugMusic, "Volume change, channel %d volume %d", ch, volume);
break;
case 0x7BB0: // all notes off
debugC(8, kDebugMusic, "All notes off, channel %d", ch);
if (!_channelsTable[ch]) { // channel not yet allocated, no need to send the event
return;
}
break;
}
if (!_channelsTable[ch]) {
_channelsTable[ch] = (ch == 9) ? _driver->getPercussionChannel() : _driver->allocateChannel();
if (_channelsTable[ch])
setChannelVolume(ch);
}
if (_channelsTable[ch]) {
_channelsTable[ch]->send(b);
}
}
void MidiPlayer::metaEvent(byte type, byte *data, uint16 length) {
switch (type) {
case 0x2F: // end of Track
if (_isLooping) {
_parser->jumpToTick(0);
} else {
stop();
}
break;
default:
// warning("Unhandled meta event: %02x", type);
break;
}
}
void MidiPlayer::timerCallback(void *p) {
MidiPlayer *player = (MidiPlayer *)p;
player->updateTimer();
}
SoundHandler::SoundHandler(HugoEngine *vm) : _vm(vm) {
MidiDriver::DeviceHandle dev = MidiDriver::detectDevice(MDT_MIDI | MDT_ADLIB | MDT_PREFER_GM);
MidiDriver *driver = MidiDriver::createMidi(dev);
_midiPlayer = new MidiPlayer(driver);
}
SoundHandler::~SoundHandler() {
delete _midiPlayer;
}
/**
* Set the FM music volume from config.mvolume (0..100%)
*/
void SoundHandler::setMusicVolume() {
_midiPlayer->setVolume(_config.musicVolume * 255 / 100);
}
/**
* Stop any sound that might be playing
*/
void SoundHandler::stopSound() {
_vm->_mixer->stopAll();
}
/**
* Stop any tune that might be playing
*/
void SoundHandler::stopMusic() {
_midiPlayer->stop();
}
/**
* Turn music on and off
*/
void SoundHandler::toggleMusic() {
_config.musicFl = !_config.musicFl;
_midiPlayer->pause(!_config.musicFl);
}
/**
* Turn digitized sound on and off
*/
void SoundHandler::toggleSound() {
_config.soundFl = !_config.soundFl;
}
void SoundHandler::playMIDI(sound_pt seq_p, uint16 size) {
_midiPlayer->play(seq_p, size);
}
/**
* Read a tune sequence from the sound database and start playing it
*/
void SoundHandler::playMusic(int16 tune) {
sound_pt seqPtr; // Sequence data from file
uint16 size; // Size of sequence data
if (_config.musicFl) {
_vm->getGameStatus().song = tune;
seqPtr = _vm->_file->getSound(tune, &size);
playMIDI(seqPtr, size);
free(seqPtr);
}
}
/**
* Produce various sound effects on supplied stereo channel(s)
* Override currently playing sound only if lower or same priority
*/
void SoundHandler::playSound(int16 sound, stereo_t channel, byte priority) {
// uint32 dwVolume; // Left, right volume of sound
sound_pt sound_p; // Sound data
uint16 size; // Size of data
static byte curPriority = 0; // Priority of currently playing sound
//
/* Sound disabled */
if (!_config.soundFl || !_vm->_mixer->isReady())
return;
syncVolume();
//
// // See if last wave still playing - if so, check priority
// if (waveOutUnprepareHeader(hwav, lphdr, sizeof(WAVEHDR)) == WAVERR_STILLPLAYING)
// if (priority < curPriority) // Don't override unless priority >= current
// return;
// else
// Stop_sound();
curPriority = priority;
//
/* Get sound data */
if ((sound_p = _vm->_file->getSound(sound, &size)) == 0)
return;
Audio::AudioStream *stream = Audio::makeRawStream(sound_p, size, 11025, Audio::FLAG_UNSIGNED);
_vm->_mixer->playStream(Audio::Mixer::kSFXSoundType, &_soundHandle, stream);
}
/**
* Initialize for MCI sound and midi
*/
void SoundHandler::initSound() {
_midiPlayer->open();
}
void SoundHandler::syncVolume() {
int soundVolume;
if (ConfMan.getBool("sfx_mute") || ConfMan.getBool("mute"))
soundVolume = -1;
else
soundVolume = MIN(255, ConfMan.getInt("sfx_volume"));
_vm->_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, soundVolume);
_midiPlayer->syncVolume();
}
} // End of namespace Hugo
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