(experimental) loop2 to get fresh audio just before drawing

* introducing usermod::loop2() - runs just before strip.service()
--> expecting to reduce lagging between audio and visual to an absolute minimum.

usermods/audioreactive/audio_reactive.h

@@ -2352,6 +2352,11 @@ class AudioReactive : public Usermod {
 #endif
     }
 
+#if defined(_MoonModules_WLED_) && defined(WLEDMM_FASTPATH)
+    void loop2(void) { 
+      loop();
+    }
+#endif
 
     bool getUMData(um_data_t **data)
     {

wled00/fcn_declare.h

@@ -299,6 +299,7 @@ class Usermod {
     virtual ~Usermod() { if (um_data) delete um_data; }
     virtual void setup() = 0; // pure virtual, has to be overriden
     virtual void loop() = 0;  // pure virtual, has to be overriden
+    virtual void loop2() {}                                                  // WLEDMM called just before effects will be processed
     virtual void handleOverlayDraw() {}                                      // called after all effects have been processed, just before strip.show()
     virtual bool handleButton(uint8_t b) { return false; }                   // button overrides are possible here
     virtual bool getUMData(um_data_t **data) { if (data) *data = nullptr; return false; }; // usermod data exchange [see examples for audio effects]
@@ -329,6 +330,7 @@ class UsermodManager {
 
   public:
     void loop();
+    void loop2();   // WLEDMM loop just before drawing effects (presets and everything already handled)
     void handleOverlayDraw();
     bool handleButton(uint8_t b);
     bool getUMData(um_data_t **um_data, uint8_t mod_id = USERMOD_ID_RESERVED); // USERMOD_ID_RESERVED will poll all usermods

wled00/um_manager.cpp

@@ -9,6 +9,7 @@ void UsermodManager::connected()         { for (byte i = 0; i < numMods; i++) um
 void UsermodManager::loop()              { for (byte i = 0; i < numMods; i++) ums[i]->loop();  }
 void UsermodManager::handleOverlayDraw() { for (byte i = 0; i < numMods; i++) ums[i]->handleOverlayDraw(); }
 // void UsermodManager::appendConfigData()  { for (byte i = 0; i < numMods; i++) ums[i]->appendConfigData(); } //WLEDMM not used
+void UsermodManager::loop2()             { for (unsigned i = 0; i < numMods; i++) ums[i]->loop2(); }
 bool UsermodManager::handleButton(uint8_t b) {
   bool overrideIO = false;
   for (byte i = 0; i < numMods; i++) {

wled00/wled.cpp

@@ -213,6 +213,19 @@ void WLED::loop()
     handlePresets();
     yield();
 
+#if defined(_MoonModules_WLED_) && defined(WLEDMM_FASTPATH)
+    #ifdef WLED_DEBUG
+    unsigned long usermod2Millis = millis();
+    #endif
+    usermods.loop2();
+    #ifdef WLED_DEBUG
+    usermod2Millis = millis() - usermod2Millis;
+    avgUsermodMillis += usermod2Millis;
+    if (usermod2Millis > maxUsermodMillis) maxUsermodMillis = usermod2Millis;
+    #endif
+    yield();
+#endif
+
     #ifdef WLED_DEBUG
     unsigned long stripMillis = millis();
     #endif

wled00/wled.h

@@ -8,7 +8,7 @@
  */
 
 // version code in format yymmddb (b = daily build)
-#define VERSION 2409060
+#define VERSION 2409210
 
 // WLEDMM  - you can check for this define in usermods, to only enabled WLEDMM specific code in the "right" fork. Its not defined in AC WLED.
 #define _MoonModules_WLED_