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This commit is contained in:
JotaChina 2025-12-25 15:14:38 -03:00
parent 8d2380c704
commit 942793f267
3 changed files with 31 additions and 20 deletions
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24
assets/js/creations/file.js
View File

@ -268,16 +268,24 @@ function parseInstrumentNode(
const ticksPerStep = 12;
patternNode.querySelectorAll("note").forEach((noteNode) => {
const pos = parseInt(noteNode.getAttribute("pos"), 10);
const len = parseInt(noteNode.getAttribute("len"), 10);
const vol = parseInt(noteNode.getAttribute("vol"), 10);
const pan = parseInt(noteNode.getAttribute("pan"), 10);
const key = parseInt(noteNode.getAttribute("key"), 10);
const pos = parseInt(noteNode.getAttribute("pos"), 10) || 0;
notes.push({ pos, len, key, vol, pan });
const rawLen = parseInt(noteNode.getAttribute("len"), 10) || 0;
// Calcula qual step acender
const stepIndex = Math.floor(pos / ticksPerStep);
// ✅ LMMS costuma salvar one-shots com len negativo (ex: -192).
// Na nossa DAW, tratamos isso como 1 step (1/16) = 12 ticks.
const len = rawLen < 0 ? TICKS_PER_STEP : rawLen;
notes.push({
pos,
len,
key: parseInt(noteNode.getAttribute("key"), 10),
vol: parseInt(noteNode.getAttribute("vol"), 10),
pan: parseInt(noteNode.getAttribute("pan"), 10),
});
// stepIndex também deve usar 12 (você já corrigiu isso antes)
const stepIndex = Math.floor(pos / TICKS_PER_STEP);
if (stepIndex < patternSteps) steps[stepIndex] = true;
});

21
assets/js/creations/pattern/pattern_audio.js
View File

@ -275,24 +275,25 @@ function schedulePianoRoll() {
track.instrument
) {
// Converte notas para eventos Tone.js
const events = pattern.notes.map((note) => {
// --- CORREÇÃO DE TEMPO (PPQ) ---
// LMMS usa 192 ticks por batida. Tone.js também usa 192 por padrão.
// Precisamos converter o 'pos' (ticks absolutos) para tempo musical
const bpm = parseInt(document.getElementById("bpm-input")?.value, 10) || 120;
const stepSec = 60 / (bpm * 4); // 1/16
// 1 Beat = 192 ticks
// Tone.Time("0:0:0").toTicks()
const events = pattern.notes.map((note) => {
const posSteps = (note.pos || 0) / TICKS_PER_STEP;
const rawLen = note.len || 0;
const lenTicks = rawLen < 0 ? TICKS_PER_STEP : rawLen; // defesa extra
const lenSteps = Math.max(1, lenTicks / TICKS_PER_STEP);
return {
// Passamos 'ticks' diretamente. O Tone converte baseado no BPM.
time:
0 + (note.pos * (Tone.Transport.PPQ / 192)) / Tone.Transport.PPQ,
time: posSteps * stepSec, // segundos
midi: note.key,
duration: note.len / 192 + "n", // Converte duração baseada em semínimas (192)
duration: lenSteps * stepSec, // segundos
velocity: (note.vol || 100) / 100,
};
});
const part = new Tone.Part((time, value) => {
if (track.muted) return;
const freq = Tone.Frequency(value.midi, "midi");

4
creation.html
View File

@ -809,7 +809,9 @@
CONSTANTS.TOTAL_KEYS - 1 - (note.key - CONSTANTS.START_NOTE);
const y = keyIndex * CONSTANTS.NOTE_HEIGHT;
const x = note.pos / CONSTANTS.TICKS_PER_PIXEL;
const width = note.len / CONSTANTS.TICKS_PER_PIXEL;
const lenTicks = note.len < 0 ? 12 : note.len;
const width = lenTicks / CONSTANTS.TICKS_PER_PIXEL;
gridCtx.fillRect(x + 1, y + 1, width - 2, CONSTANTS.NOTE_HEIGHT - 2);
gridCtx.strokeRect(