feat: VSTi live playback 100% client-side (không Carla) — autosample SF2 backend (pedalboard) → FluidSynth WASM qua masterBus → mastering → main out; SonicVstiAutosample ensure+dedup+cooldown; runtime gating __enableCarlaLivePlayback; âm bắt qua ensureMidiCapture → clientSideExport

2026-08-11 14:28:42 +07:00
parent 7293d7ac7e
commit cadb5402a3
12 changed files with 676 additions and 44 deletions
@@ -0,0 +1,101 @@
+// SonicForge VSTi Autosample Service
+// Live playback 100% client-side (không Carla): VSTi note → SF2 autosampled
+// (backend pedalboard, render 1 lần / plugin+preset) → FluidSynth WASM qua
+// masterBus → mastering → main out. ensure() dedup in-flight request + cooldown
+// lỗi (404/501/no pedalboard) để không spam server.
+window.SonicVstiAutosample = window.SonicVstiAutosample || {};
+
+(function () {
+    var LS_MAP_KEY = 'sf_vsti_autosample_map';
+    var LS_FAIL_KEY = 'sf_vsti_autosample_fail';
+    var FAIL_COOLDOWN_MS = 60000;
+
+    function readMap() {
+        try { return JSON.parse(localStorage.getItem(LS_MAP_KEY) || '{}') || {}; } catch (e) { return {}; }
+    }
+    function writeMap(map) {
+        try { localStorage.setItem(LS_MAP_KEY, JSON.stringify(map)); } catch (e) {}
+    }
+    function readFails() {
+        try { return JSON.parse(localStorage.getItem(LS_FAIL_KEY) || '{}') || {}; } catch (e) { return {}; }
+    }
+
+    // Key = plugin + preset → autosample lại khi đổi preset (âm preset mới).
+    function keyFor(synthEngine) {
+        if (!synthEngine) return '';
+        return String(synthEngine.plugin_id || '') + '|' + String(synthEngine.preset_id || synthEngine.presetId || '');
+    }
+
+    // SF id đã autosample cho engine (cache localStorage) — đồng bộ, không request.
+    function sfIdFor(synthEngine) {
+        var k = keyFor(synthEngine);
+        if (!k) return null;
+        var map = readMap();
+        return (map[k] && map[k].sf_id) ? map[k].sf_id : null;
+    }
+
+    function entryFor(synthEngine) {
+        var k = keyFor(synthEngine);
+        if (!k) return null;
+        return readMap()[k] || null;
+    }
+
+    var _inFlight = {}; // key → Promise<sf_id|null> — nhiều note cùng lúc chỉ 1 request
+
+    // Đảm bảo SF2 autosampled tồn tại. Trả Promise<sf_id|null>; null =
+    // không autosample được → caller fallback (oscillator / không phát).
+    function ensure(synthEngine) {
+        var k = keyFor(synthEngine);
+        if (!k) return Promise.resolve(null);
+        var cached = sfIdFor(synthEngine);
+        if (cached) return Promise.resolve(cached);
+        if (_inFlight[k]) return _inFlight[k];
+        var fails = readFails();
+        if (fails[k] && (Date.now() - fails[k]) < FAIL_COOLDOWN_MS) {
+            return Promise.resolve(null);
+        }
+        if (!window.SonicAPI || !window.SonicAPI.autosampleVsti) {
+            return Promise.resolve(null);
+        }
+        _inFlight[k] = new Promise(function (resolve) {
+            var payload = {
+                instrument_id: synthEngine.plugin_id,
+                preset_id: synthEngine.preset_id || synthEngine.presetId || null,
+                preset_path: synthEngine.preset_path || null,
+                preset_data: synthEngine.preset_data || null
+            };
+            window.SonicAPI.autosampleVsti(payload).then(function (res) {
+                delete _inFlight[k];
+                if (res && res.success && res.sf_id) {
+                    var map = readMap();
+                    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() };
+                    writeMap(map);
+                    resolve(res.sf_id);
+                } else {
+                    resolve(null);
+                }
+            }).catch(function () {
+                delete _inFlight[k];
+                var fails2 = readFails();
+                fails2[k] = Date.now();
+                try { localStorage.setItem(LS_FAIL_KEY, JSON.stringify(fails2)); } catch (e) {}
+                resolve(null);
+            });
+        });
+        return _inFlight[k];
+    }
+
+    // Xoá cache + cooldown — cho phép re-sample (đổi preset/plugin hoặc debug).
+    function clearCache() {
+        try { localStorage.removeItem(LS_MAP_KEY); } catch (e) {}
+        try { localStorage.removeItem(LS_FAIL_KEY); } catch (e) {}
+    }
+
+    window.SonicVstiAutosample = {
+        keyFor: keyFor,
+        sfIdFor: sfIdFor,
+        entryFor: entryFor,
+        ensure: ensure,
+        clearCache: clearCache
+    };
+})();