M5: capture editor state -> preset_b64 khi đóng GUI native (JuceFxLoop ghi <job>.preset.json + /fx-gui/close poll)

2026-09-04 11:49:42 +07:00
parent 14fd794e6d
commit 014b9ac460
3 changed files with 88 additions and 1 deletions
@@ -484,6 +484,39 @@ class FxRealtimeSession:
                return i
        return None

+    def capture_editor_preset(self, slot, timeout=3.0):
+        """M5: capture state editor của CHÍNH instance DSP (ed.capture) → C++
+        ghi file JSON cạnh job: <jobPath>.preset.json {slot, preset_b64} (xem
+        JuceFxLoop.cpp) → đọc + xoá file → trả preset_b64 ("" nếu plugin không
+        có state / bridge chết / timeout). Không cần editor đang mở — state
+        đọc từ processor sống trong graph; gọi TRƯỚC ed.close khi đóng GUI."""
+        cap_path = (self._job_path or "") + ".preset.json"
+        if cap_path and os.path.exists(cap_path):
+            try:
+                os.remove(cap_path)
+            except Exception:
+                pass
+        if not self.send_editor_cmd("capture", slot=slot):
+            return ""
+        deadline = time.time() + timeout
+        while time.time() < deadline:
+            if not self.alive():
+                return ""
+            if cap_path and os.path.exists(cap_path):
+                try:
+                    with open(cap_path, "r", encoding="utf-8") as f:
+                        data = json.load(f)
+                    os.remove(cap_path)
+                    return data.get("preset_b64", "")
+                except Exception:
+                    try:
+                        os.remove(cap_path)
+                    except Exception:
+                        pass
+                    return ""
+            time.sleep(0.05)
+        return ""
+
    def _watch_loop(self):
        """M4.5 watchdog — thread riêng (ngoài audio). Proc chết ngoài ý muốn
        (crash view/plugin/loop) → AUTO restart tối đa FXRT_MAX_RESTARTS lần,