diff options
Diffstat (limited to 'engines/parallaction/music.cpp')
| -rw-r--r-- | engines/parallaction/music.cpp | 195 |
1 files changed, 126 insertions, 69 deletions
diff --git a/engines/parallaction/music.cpp b/engines/parallaction/music.cpp index 8b0aa35262..3cc3be5a3a 100644 --- a/engines/parallaction/music.cpp +++ b/engines/parallaction/music.cpp @@ -20,68 +20,34 @@ * */ +#include "common/stdafx.h" #include "common/file.h" #include "parallaction/parallaction.h" -namespace Parallaction { - -// NOTE: these two guys are never changed. -static int16 _musicFlag2 = 1; -static int16 _musicFlag1 = 1; - -static bool _allocated = false; -static bool _playing = false; -// UNUSED -// static char byte_14D22[10] = { 0 }; -static const char *_musicFilesNames[] = { "intro", "dino", "donna", "nuts", "soft", "boogie2" }; -static uint16 _musicFilesSizes[] = { 18805, 5486, 6195, 13006, 15818, 7507 }; -static byte *_musicBits = NULL; - -// TODO -// move this into a proper midi driver and decode the numeric commands -void _music_command(const void*, const void*, const void*, const void*) { - -} +#include "common/stream.h" -void stopMusic() { +#include "sound/midiparser.h" - if (_musicFlag1 == 0 && _musicFlag2 == 0) return; - if (_playing == false) return; - if (_allocated == false) return; +#include "parallaction/music.h" - _music_command((const void*)4, (const void*)0, (const void*)0, (const void*)0); // stop - _music_command((const void*)5, (const void*)0, (const void*)0, (const void*)0); // reset timer - memFree(_musicBits); +namespace Parallaction { - _allocated = false; - _playing = false; +MidiPlayer::MidiPlayer(MidiDriver *driver) + : _driver(driver), _parser(0), _midiData(0), _isLooping(false), _isPlaying(false), _masterVolume(0) { + assert(_driver); + memset(_channelsTable, 0, sizeof(_channelsTable)); + memset(_channelsVolume, 0, sizeof(_channelsVolume)); - return; + open(); } -void playMusic() { - - if (_musicFlag1 == 0 && _musicFlag2 == 0) return; - if (_playing == true) return; - if (_allocated == false) return; - - _music_command(0, 0, 0, 0); // init driver - _music_command((const void*)1, 0, 0, 0); // init timer - _music_command((const void*)17, (const void*)1, 0, 0); // set source segment - _music_command((const void*)7, (const void*)1, 0, 0); // set source offset and do SOMETHING - - // FIXME: casting pointer to uint32 - _music_command((const void*)2, (const void*)_musicBits, 0, 0); // play - - _playing = true; - - return; +MidiPlayer::~MidiPlayer() { + close(); } -void loadMusic(const char *filename) { - - uint16 _di = 0; +void MidiPlayer::play(const char *filename) { + stop(); if (!scumm_strnicmp(_location, "museo", 5)) return; if (!scumm_strnicmp(_location, "intgrottadopo", 13)) return; @@ -90,20 +56,6 @@ void loadMusic(const char *filename) { if (!scumm_strnicmp(_location, "plaza1", 6)) return; if (!scumm_strnicmp(_location, "endtgz", 6)) return; - if (_musicFlag1 == 0 && _musicFlag2 == 0) return; - if (_allocated == true) return; - -// UNUSED -// strcpy(byte_14D22, filename); - - for (uint16 _si = 0; _si < 6; _si++) { - if (!strcmp(filename, _musicFilesNames[_si])) { - _di = _musicFilesSizes[_si]; - } - } - - if (_di == 0 ) return; - char path[PATH_LEN]; sprintf(path, "%s.mid", filename); @@ -112,15 +64,120 @@ void loadMusic(const char *filename) { if (!stream.open(path)) return; - _musicBits = (byte*)memAlloc(_di); - if (!_musicBits) return; + int size = stream.size(); + + _midiData = (uint8 *)malloc(size); + if (_midiData) { + stream.read(_midiData, size); + _mutex.lock(); + _parser->loadMusic(_midiData, size); + _parser->setTrack(0); + _isLooping = true; + _isPlaying = true; + _mutex.unlock(); + } +} + +void MidiPlayer::stop() { + _mutex.lock(); + if (_isPlaying) { + _isPlaying = false; + _parser->unloadMusic(); + free(_midiData); + _midiData = 0; + } + _mutex.unlock(); +} + +void MidiPlayer::updateTimer() { + _mutex.lock(); + if (_isPlaying) { + _parser->onTimer(); + } + _mutex.unlock(); +} + +void MidiPlayer::adjustVolume(int diff) { + setVolume(_masterVolume + diff); +} + +void MidiPlayer::setVolume(int volume) { + _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(); +} + +int MidiPlayer::open() { + int ret = _driver->open(); + if (ret == 0) { + _parser = MidiParser::createParser_SMF(); + _parser->setMidiDriver(this); + _parser->setTimerRate(_driver->getBaseTempo()); + _driver->setTimerCallback(this, &timerCallback); + } + return ret; +} + +void MidiPlayer::close() { + stop(); + _mutex.lock(); + _driver->setTimerCallback(NULL, NULL); + _driver->close(); + _driver = 0; + _parser->setMidiDriver(NULL); + delete _parser; + _mutex.unlock(); +} + +void MidiPlayer::send(uint32 b) { + byte volume, ch = (byte)(b & 0xF); + switch (b & 0xFFF0) { + case 0x07B0: // volume change + volume = (byte)((b >> 16) & 0x7F); + _channelsVolume[ch] = volume; + volume = volume * _masterVolume / 255; + b = (b & 0xFF00FFFF) | (volume << 16); + break; + case 0x7BB0: // all notes off + 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]) { + _channelsTable[ch]->send(b); + } +} - stream.read(_musicBits, _di); - stream.close(); +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; + } +} - _allocated = true; +void MidiPlayer::timerCallback(void *p) { + MidiPlayer *player = (MidiPlayer *)p; - return; + player->updateTimer(); } } // namespace Parallaction |