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LibTaud: off-by-one error on BPM parsing

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minjaesong
2026-05-14 15:27:13 +09:00
parent f3ece28a10
commit 70d953a784
2 changed files with 5 additions and 5 deletions
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6
assets/disk0/tvdos/include/taud.mjs
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@@ -118,7 +118,7 @@ function uploadTaudFile(inFile, songIndex, playhead) {
let patBinCompSize = _peekU32LE(filePtr, entryOff + 18)
let cueSheetCompSize = _peekU32LE(filePtr, entryOff + 22)
let bpm = bpmStored + 24
let bpm = bpmStored + 25
let patsToLoad = numPatsLo | (numPatsHi << 8)
// -- 6. Decompress + upload patterns --------------------------------------
@@ -210,7 +210,7 @@ function captureTrackerDataToFile(outFile) {
// -- 3. BPM / tick-rate / volumes from playhead 0 -------------------------
let bpm = audio.getBPM(0) || 125
let tickRate = audio.getTickRate(0) || 6
let bpmStored = (bpm - 24) & 0xFF
let bpmStored = (bpm - 25) & 0xFF
let songGlobalVolume = audio.getSongGlobalVolume(0)
let songMixingVolume = audio.getSongMixingVolume(0)
if (songGlobalVolume === undefined || songGlobalVolume === null) songGlobalVolume = 0x80
@@ -272,7 +272,7 @@ function captureTrackerDataToFile(outFile) {
(songOffset >>> 24) & 0xFF,
20, // numVoices
numPats & 0xFF, (numPats >>> 8) & 0xFF, // numPatterns Uint16 LE
bpmStored, // BPM with −24 bias
bpmStored, // BPM with −25 bias
tickRate, // initial tick-rate
0x00,0xA0, // basenote (0xA000 -- C9)
0x00,0xAC,0x02,0x46, // basefreq (8363 Hz)