102 lines
4.1 KiB
JavaScript
102 lines
4.1 KiB
JavaScript
// SonicForge VSTi Autosample Service
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// Live playback 100% client-side (không Carla): VSTi note → SF2 autosampled
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// (backend pedalboard, render 1 lần / plugin+preset) → FluidSynth WASM qua
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// masterBus → mastering → main out. ensure() dedup in-flight request + cooldown
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// lỗi (404/501/no pedalboard) để không spam server.
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window.SonicVstiAutosample = window.SonicVstiAutosample || {};
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(function () {
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var LS_MAP_KEY = 'sf_vsti_autosample_map';
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var LS_FAIL_KEY = 'sf_vsti_autosample_fail';
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var FAIL_COOLDOWN_MS = 60000;
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function readMap() {
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try { return JSON.parse(localStorage.getItem(LS_MAP_KEY) || '{}') || {}; } catch (e) { return {}; }
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}
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function writeMap(map) {
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try { localStorage.setItem(LS_MAP_KEY, JSON.stringify(map)); } catch (e) {}
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}
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function readFails() {
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try { return JSON.parse(localStorage.getItem(LS_FAIL_KEY) || '{}') || {}; } catch (e) { return {}; }
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}
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// Key = plugin + preset → autosample lại khi đổi preset (âm preset mới).
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function keyFor(synthEngine) {
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if (!synthEngine) return '';
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return String(synthEngine.plugin_id || '') + '|' + String(synthEngine.preset_id || synthEngine.presetId || '');
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}
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// SF id đã autosample cho engine (cache localStorage) — đồng bộ, không request.
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function sfIdFor(synthEngine) {
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var k = keyFor(synthEngine);
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if (!k) return null;
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var map = readMap();
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return (map[k] && map[k].sf_id) ? map[k].sf_id : null;
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}
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function entryFor(synthEngine) {
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var k = keyFor(synthEngine);
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if (!k) return null;
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return readMap()[k] || null;
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}
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var _inFlight = {}; // key → Promise<sf_id|null> — nhiều note cùng lúc chỉ 1 request
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// Đảm bảo SF2 autosampled tồn tại. Trả Promise<sf_id|null>; null =
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// không autosample được → caller fallback (oscillator / không phát).
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function ensure(synthEngine) {
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var k = keyFor(synthEngine);
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if (!k) return Promise.resolve(null);
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var cached = sfIdFor(synthEngine);
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if (cached) return Promise.resolve(cached);
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if (_inFlight[k]) return _inFlight[k];
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var fails = readFails();
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if (fails[k] && (Date.now() - fails[k]) < FAIL_COOLDOWN_MS) {
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return Promise.resolve(null);
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}
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if (!window.SonicAPI || !window.SonicAPI.autosampleVsti) {
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return Promise.resolve(null);
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}
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_inFlight[k] = new Promise(function (resolve) {
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var payload = {
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instrument_id: synthEngine.plugin_id,
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preset_id: synthEngine.preset_id || synthEngine.presetId || null,
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preset_path: synthEngine.preset_path || null,
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preset_data: synthEngine.preset_data || null
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};
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window.SonicAPI.autosampleVsti(payload).then(function (res) {
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delete _inFlight[k];
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if (res && res.success && res.sf_id) {
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var map = readMap();
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map[k] = { sf_id: res.sf_id, size_bytes: res.size_bytes || 0, note_count: res.note_count || 0, plugin_id: synthEngine.plugin_id, preset_id: synthEngine.preset_id || synthEngine.presetId || '', ts: Date.now() };
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writeMap(map);
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resolve(res.sf_id);
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} else {
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resolve(null);
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}
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}).catch(function () {
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delete _inFlight[k];
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var fails2 = readFails();
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fails2[k] = Date.now();
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try { localStorage.setItem(LS_FAIL_KEY, JSON.stringify(fails2)); } catch (e) {}
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resolve(null);
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});
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});
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return _inFlight[k];
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}
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// Xoá cache + cooldown — cho phép re-sample (đổi preset/plugin hoặc debug).
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function clearCache() {
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try { localStorage.removeItem(LS_MAP_KEY); } catch (e) {}
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try { localStorage.removeItem(LS_FAIL_KEY); } catch (e) {}
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}
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window.SonicVstiAutosample = {
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keyFor: keyFor,
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sfIdFor: sfIdFor,
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entryFor: entryFor,
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ensure: ensure,
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clearCache: clearCache
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};
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})();
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