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fix: _origChannel tránh channel bị ghi đè bởi mappedCh

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Line 378: 'if (channel===undefined) channel=ch' gán channel = FluidSynth
channel (2), sau đó _activeNotes key dùng channel (2) thay vì MIDI
channel (0). stopNote lookup bằng 0 → key mismatch.
Fix: _origChannel = channel ngay đầu hàm, dùng _origChannel cho key.
This commit is contained in:
3dtours
2026-07-27 15:54:06 +07:00
parent 987ecffc6c
commit ce7d23c351
1 changed files with 4 additions and 4 deletions
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app/static/js/services/soundfontPlayer.js
+4 -4
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@@ -356,6 +356,7 @@
var midiVel = Math.min(127, Math.max(1, Math.floor(
typeof velocity === 'number' ? (velocity > 1 ? velocity : velocity * 127) : 100
)));
var _origChannel = channel;
var ch = channel;
var usedBank = 0, usedProg = 0;
if (synthEngine) {
@@ -375,7 +376,6 @@
try {
_fluidModule._fluid_synth_program_change(_synthPtr, ch, usedProg);
} catch (e) {}
if (channel === undefined) channel = ch;
} else if (program !== undefined) {
usedProg = program;
if (ch === undefined) ch = 0;
@@ -394,13 +394,13 @@
try {
console.log("[SonicSF] noteOn ch:", ch, "pitch:", midiPitch, "vel:", midiVel);
_fluidModule._fluid_synth_noteon(_synthPtr, ch, midiPitch, midiVel);
_activeNotes[(channel !== undefined ? channel : 0) + ':' + midiPitch] = ch;
var noteMapKey = (channel !== undefined ? channel : 0) + ':' + midiPitch;
_activeNotes[(_origChannel !== undefined ? _origChannel : 0) + ':' + midiPitch] = ch;
var noteMapKey = (_origChannel !== undefined ? _origChannel : 0) + ':' + midiPitch;
if (durationMs > 0 && durationMs < 60000) {
scheduledNote.off = setTimeout(function () {
try {
_fluidModule._fluid_synth_noteoff(_synthPtr, ch, midiPitch);
delete _activeNotes[noteMapKey];
delete _activeNotes[(_origChannel !== undefined ? _origChannel : 0) + ':' + midiPitch];
} catch (e) {}
}, durSec * 1000);
}