3dtours
5a49d2012b
- Add controllerChange forwarder for all CC messages (cmd 0xB) - Add pitchBend method to SonicSF + MIDI handler (cmd 0xE) - CCs routed to _synthInstance.controllerChange(ch, cc, val) - Pitch bend routed to _synthInstance.pitchBend(ch, 14bit-val)
323 lines
15 KiB
JavaScript
323 lines
15 KiB
JavaScript
(function () {
|
|
'use strict';
|
|
|
|
const activeOscillators = {};
|
|
let __gainNode = null;
|
|
|
|
const getCtx = () => {
|
|
if (typeof getAudioContext === 'function') {
|
|
const ctx = getAudioContext();
|
|
if (!__gainNode) {
|
|
__gainNode = ctx.createGain();
|
|
__gainNode.gain.value = 0.3;
|
|
__gainNode.connect(ctx.destination);
|
|
}
|
|
return ctx;
|
|
}
|
|
if (!window.__sharedAudioCtx) {
|
|
window.__sharedAudioCtx = new (window.AudioContext || window.webkitAudioContext)();
|
|
}
|
|
if (window.__sharedAudioCtx.state === 'suspended') {
|
|
window.__sharedAudioCtx.resume();
|
|
}
|
|
if (!__gainNode) {
|
|
__gainNode = window.__sharedAudioCtx.createGain();
|
|
__gainNode.gain.value = 0.3;
|
|
__gainNode.connect(window.__sharedAudioCtx.destination);
|
|
}
|
|
return window.__sharedAudioCtx;
|
|
};
|
|
|
|
const _channels = Array.from({ length: 16 }, () => ({ bank: 0, program: 0, isPercussion: false }));
|
|
let _nextMelodicChannel = 0;
|
|
|
|
let _synthInstance = null;
|
|
let _initialized = false;
|
|
let _initPromise = null;
|
|
let _currentSfId = null;
|
|
const _scheduledNotes = [];
|
|
|
|
const SonicSF = {
|
|
loadedFonts: {},
|
|
|
|
init: async function (audioContext) {
|
|
if (_initialized && _synthInstance) return;
|
|
if (_initPromise) return _initPromise;
|
|
_initPromise = (async () => {
|
|
if (!window.SpessaSynthClass || !window.__SpessaSynthCDN) {
|
|
console.warn("[SonicSF] SpessaSynth CDN not available. Retrying on next select.");
|
|
_initPromise = null;
|
|
return;
|
|
}
|
|
try {
|
|
if (audioContext.state === 'suspended') await audioContext.resume();
|
|
const procUrl = window.__SpessaSynthCDN + "spessasynth_processor.min.js";
|
|
await audioContext.audioWorklet.addModule(procUrl);
|
|
_synthInstance = new window.SpessaSynthClass(audioContext);
|
|
_synthInstance.connect(audioContext.destination);
|
|
await _synthInstance.isReady;
|
|
_initialized = true;
|
|
} catch (e) {
|
|
console.warn("[SonicSF] SpessaSynth init failed:", e);
|
|
_initPromise = null;
|
|
}
|
|
})();
|
|
return _initPromise;
|
|
},
|
|
|
|
loadSoundFont: async function (sfId) {
|
|
if (!_initialized || !_synthInstance) return false;
|
|
if (_currentSfId === sfId) return true;
|
|
// Check if already loaded (SpessaSynth can hold multiple banks)
|
|
const already = _synthInstance.soundBankManager?.soundBankList?.some(b => b.id === sfId);
|
|
if (already) {
|
|
_currentSfId = sfId;
|
|
return true;
|
|
}
|
|
try {
|
|
const cache = window.SonicSFStorage;
|
|
let buf = cache ? await cache.getBuffer(sfId) : null;
|
|
if (!buf) {
|
|
const url = "/api/v1/plugins/soundfonts/download/" + encodeURIComponent(sfId) + "?t=" + Date.now();
|
|
const resp = await fetch(url);
|
|
if (!resp.ok) {
|
|
console.warn("[SonicSF] SoundFont not found on server:", sfId);
|
|
return false;
|
|
}
|
|
buf = await resp.arrayBuffer();
|
|
if (cache) await cache.saveBuffer(sfId, buf);
|
|
}
|
|
await _synthInstance.soundBankManager.addSoundBank(buf.slice(0), sfId);
|
|
await _synthInstance.isReady;
|
|
_currentSfId = sfId;
|
|
return true;
|
|
} catch (e) {
|
|
console.warn("[SonicSF] loadSoundFont failed:", e);
|
|
return false;
|
|
}
|
|
},
|
|
|
|
selectInstrument: async function (channel, bank, program, sfId) {
|
|
if (!_initialized || !_synthInstance) {
|
|
const ctx = new (window.AudioContext || window.webkitAudioContext)();
|
|
await this.init(ctx);
|
|
}
|
|
if (sfId) {
|
|
const ok = await this.loadSoundFont(sfId);
|
|
if (!ok) return;
|
|
}
|
|
try { _synthInstance.controllerChange(channel, 0, bank); } catch (e) {}
|
|
try { _synthInstance.controllerChange(channel, 32, 0); } catch (e) {}
|
|
try { _synthInstance.programChange(channel, program); } catch (e) {}
|
|
this.controllerChange(channel, 0, bank);
|
|
this.programChange(channel, program);
|
|
},
|
|
|
|
controllerChange: function (channel, controller, value) {
|
|
if (channel < 0 || channel > 15) return;
|
|
if (_initialized && _synthInstance) {
|
|
try { _synthInstance.controllerChange(channel, controller, value); } catch (e) {}
|
|
}
|
|
if (controller === 0) {
|
|
_channels[channel].bank = value;
|
|
_channels[channel].isPercussion = (value === 128);
|
|
}
|
|
},
|
|
|
|
programChange: function (channel, program) {
|
|
if (channel < 0 || channel > 15) return;
|
|
if (_initialized && _synthInstance) {
|
|
try { _synthInstance.programChange(channel, program); } catch (e) {}
|
|
}
|
|
_channels[channel].program = program;
|
|
},
|
|
|
|
allocateChannel: function (bank) {
|
|
if (bank === 128) return 9;
|
|
const ch = _nextMelodicChannel % 9;
|
|
_nextMelodicChannel = (_nextMelodicChannel + 1) % 9;
|
|
return ch;
|
|
},
|
|
|
|
applyAITrackInstrument: function (bank, program, synthEngine) {
|
|
if (synthEngine) {
|
|
bank = bank !== undefined ? bank : (synthEngine.soundfont_bank || 0);
|
|
program = program !== undefined ? program : (synthEngine.soundfont_program || 0);
|
|
}
|
|
const channel = this.allocateChannel(bank);
|
|
this.selectInstrument(channel, bank, program, synthEngine?.soundfont_id);
|
|
return channel;
|
|
},
|
|
|
|
getChannelState: function (channel) {
|
|
if (channel < 0 || channel > 15) return null;
|
|
return { ..._channels[channel] };
|
|
},
|
|
|
|
pitchBend: function (channel, value) {
|
|
if (channel < 0 || channel > 15) return;
|
|
if (_initialized && _synthInstance) {
|
|
try { _synthInstance.pitchBend(channel, value); } catch (e) {}
|
|
}
|
|
},
|
|
|
|
playNote: function (note, velocity, durationMs, startTime, program, destinationNode, channel, synthEngine) {
|
|
if (_initialized && _synthInstance) {
|
|
this._playNoteSpessa(note, velocity, durationMs, startTime, program, channel, synthEngine);
|
|
return;
|
|
}
|
|
this._playNoteOsc(note, velocity, durationMs, startTime, program, destinationNode, channel, synthEngine);
|
|
},
|
|
|
|
_playNoteSpessa: function (note, velocity, durationMs, startTime, program, channel, synthEngine) {
|
|
const ctx = getCtx();
|
|
const midiPitch = Math.min(127, Math.max(0, parseInt(note) || 60));
|
|
const midiVel = Math.min(127, Math.max(1, Math.floor(
|
|
typeof velocity === 'number' ? (velocity > 1 ? velocity : velocity * 127) : 100
|
|
)));
|
|
if (synthEngine) {
|
|
const ch = channel !== undefined ? channel : (synthEngine.soundfont_bank === 128 ? 9 : 0);
|
|
try { _synthInstance.controllerChange(ch, 0, synthEngine.soundfont_bank || 0); } catch (e) {}
|
|
try { _synthInstance.controllerChange(ch, 32, 0); } catch (e) {}
|
|
try { _synthInstance.programChange(ch, synthEngine.soundfont_program || 0); } catch (e) {}
|
|
if (channel === undefined) channel = ch;
|
|
}
|
|
if (channel === undefined) channel = 0;
|
|
const durSec = durationMs / 1000;
|
|
const now = ctx.currentTime;
|
|
const delay = (typeof startTime === 'number' && startTime > now) ? (startTime - now) : 0;
|
|
const noteId = { on: null, off: null };
|
|
_scheduledNotes.push(noteId);
|
|
const doNote = () => {
|
|
try {
|
|
_synthInstance.noteOn(channel, midiPitch, midiVel);
|
|
noteId.off = setTimeout(() => {
|
|
try { _synthInstance.noteOff(channel, midiPitch); } catch (e) {}
|
|
const idx = _scheduledNotes.indexOf(noteId);
|
|
if (idx >= 0) _scheduledNotes.splice(idx, 1);
|
|
}, durSec * 1000);
|
|
} catch (e) {
|
|
console.warn("[SonicSF] SpessaSynth noteOn error:", e);
|
|
this._playNoteOsc(note, velocity, durationMs, startTime, program, null, channel, synthEngine);
|
|
}
|
|
};
|
|
if (delay > 0) {
|
|
noteId.on = setTimeout(doNote, delay * 1000);
|
|
} else {
|
|
doNote();
|
|
const idx = _scheduledNotes.indexOf(noteId);
|
|
if (idx >= 0) _scheduledNotes.splice(idx, 1);
|
|
}
|
|
},
|
|
|
|
_playNoteOsc: function (note, velocity, durationMs, startTime, program, destinationNode, channel, synthEngine) {
|
|
const ctx = getCtx();
|
|
const freq = 440 * Math.pow(2, (note - 69) / 12);
|
|
if (freq <= 0 || isNaN(freq)) return null;
|
|
|
|
if (synthEngine) {
|
|
const ch = channel !== undefined ? channel : (synthEngine.soundfont_bank === 128 ? 9 : 0);
|
|
this.controllerChange(ch, 0, synthEngine.soundfont_bank || 0);
|
|
this.programChange(ch, synthEngine.soundfont_program || 0);
|
|
if (channel === undefined) channel = ch;
|
|
if (program === undefined) program = synthEngine.soundfont_program;
|
|
}
|
|
|
|
const osc = ctx.createOscillator();
|
|
const noteGain = ctx.createGain();
|
|
let oscType = 'triangle';
|
|
let attackTime = 0.03, decayTime = 0.1, sustainLevel = 0.5, releaseTime = 0.2, volFactor = 0.25;
|
|
|
|
let prog = program !== undefined ? parseInt(program) : 0;
|
|
if (channel !== undefined && channel >= 0 && channel < 16) {
|
|
const chState = _channels[channel];
|
|
prog = chState.program || prog;
|
|
}
|
|
if (prog >= 0 && prog <= 7) {
|
|
oscType = 'sine'; decayTime = 0.3; sustainLevel = 0.1; releaseTime = 0.2;
|
|
} else if (prog >= 8 && prog <= 15) {
|
|
oscType = 'sine'; decayTime = 0.1; sustainLevel = 0.0; releaseTime = 0.1;
|
|
} else if (prog >= 16 && prog <= 23) {
|
|
oscType = 'sine'; attackTime = 0.05; sustainLevel = 0.8; releaseTime = 0.1;
|
|
} else if (prog >= 24 && prog <= 31) {
|
|
oscType = 'triangle'; decayTime = 0.4; sustainLevel = 0.2; releaseTime = 0.3;
|
|
} else if (prog >= 32 && prog <= 39) {
|
|
oscType = 'triangle'; attackTime = 0.02; decayTime = 0.2; sustainLevel = 0.6; releaseTime = 0.2;
|
|
} else if (prog >= 40 && prog <= 47) {
|
|
oscType = 'sawtooth'; attackTime = 0.15; sustainLevel = 0.8; releaseTime = 0.5; volFactor = 0.15;
|
|
} else if (prog >= 48 && prog <= 55) {
|
|
oscType = 'sawtooth'; attackTime = 0.2; sustainLevel = 0.8; releaseTime = 0.6; volFactor = 0.12;
|
|
} else if (prog >= 56 && prog <= 63) {
|
|
oscType = 'sawtooth'; attackTime = 0.08; sustainLevel = 0.7; releaseTime = 0.3; volFactor = 0.15;
|
|
} else if (prog >= 64 && prog <= 71) {
|
|
oscType = 'square'; attackTime = 0.05; sustainLevel = 0.6; releaseTime = 0.2; volFactor = 0.15;
|
|
} else if (prog >= 72 && prog <= 79) {
|
|
oscType = 'sine'; attackTime = 0.1; sustainLevel = 0.7; releaseTime = 0.3; volFactor = 0.2;
|
|
} else if (prog >= 80 && prog <= 119) {
|
|
oscType = 'sawtooth'; attackTime = 0.05; sustainLevel = 0.6; releaseTime = 0.4; volFactor = 0.15;
|
|
}
|
|
|
|
osc.type = oscType;
|
|
osc.frequency.setValueAtTime(freq, 0);
|
|
const startAt = startTime !== undefined ? startTime : ctx.currentTime;
|
|
const durSec = durationMs / 1000;
|
|
const vel = typeof velocity === 'number' ? (velocity > 1 ? velocity / 127 : velocity) : 0.8;
|
|
const targetGain = vel * volFactor;
|
|
|
|
noteGain.gain.setValueAtTime(0, startAt);
|
|
noteGain.gain.linearRampToValueAtTime(targetGain, startAt + attackTime);
|
|
noteGain.gain.linearRampToValueAtTime(targetGain * sustainLevel, startAt + attackTime + decayTime);
|
|
const releaseStart = startAt + Math.max(attackTime + decayTime, durSec);
|
|
noteGain.gain.linearRampToValueAtTime(targetGain * sustainLevel, releaseStart);
|
|
noteGain.gain.linearRampToValueAtTime(0, releaseStart + releaseTime);
|
|
|
|
osc.connect(noteGain);
|
|
noteGain.connect(destinationNode || __gainNode || ctx.destination);
|
|
osc.start(startAt);
|
|
const stopAt = releaseStart + releaseTime + 0.02;
|
|
osc.stop(stopAt);
|
|
|
|
const oscId = `${note}_${Date.now()}_${Math.random()}`;
|
|
activeOscillators[oscId] = { osc, gain: noteGain };
|
|
setTimeout(() => { delete activeOscillators[oscId]; }, (stopAt - ctx.currentTime) * 1000 + 100);
|
|
return osc;
|
|
},
|
|
|
|
stopAll: function () {
|
|
if (_initialized && _synthInstance) {
|
|
try { for (let ch = 0; ch < 16; ch++) _synthInstance.allNotesOff(ch); } catch (e) {}
|
|
}
|
|
// Cancel all scheduled future notes
|
|
while (_scheduledNotes.length > 0) {
|
|
const n = _scheduledNotes.pop();
|
|
if (n.on) { clearTimeout(n.on); n.on = null; }
|
|
if (n.off) { clearTimeout(n.off); n.off = null; }
|
|
}
|
|
const ctx = getCtx();
|
|
const now = ctx.currentTime;
|
|
Object.values(activeOscillators).forEach(entry => {
|
|
try {
|
|
if (entry.gain) { entry.gain.gain.cancelScheduledValues(now); entry.gain.gain.setValueAtTime(0, now); }
|
|
if (entry.osc) try { entry.osc.stop(now); } catch (e) { }
|
|
} catch (e) { }
|
|
});
|
|
Object.keys(activeOscillators).forEach(k => delete activeOscillators[k]);
|
|
},
|
|
|
|
saveToIndexedDB: async function (name, arrayBuffer) {
|
|
if (window.SonicStorage && window.SonicStorage.saveToIndexedDB) {
|
|
await window.SonicStorage.saveToIndexedDB('soundfont_' + name, arrayBuffer);
|
|
}
|
|
},
|
|
|
|
loadFromIndexedDB: async function (name) {
|
|
if (window.SonicStorage && window.SonicStorage.loadFromIndexedDB) {
|
|
return await window.SonicStorage.loadFromIndexedDB('soundfont_' + name);
|
|
}
|
|
return null;
|
|
}
|
|
};
|
|
|
|
window.SonicSF = SonicSF;
|
|
})();
|