OSC Startup from Various Unstream Cases (surge-synthesizer#7311)

* OSC Startup from Various Unstream Cases

now the OSC info is in DawExtra we need to start after a load and no earlier
so we do that here by handling it in both the set state and prepare to play
inbound cases. Works with 2 things in reaper muted or un on macos.

Closes surge-synthesizer#7293

src/surge-xt/SurgeSynthEditor.cpp

@@ -142,7 +142,6 @@ SurgeSynthEditor::SurgeSynthEditor(SurgeSynthProcessor &p)
         std::lock_guard<std::mutex> grd(surgeLookAndFeelSetupMutex);
         if (auto sp = surgeLookAndFeelWeakPointer.lock())
         {
-            std::cout << "Re-using shared pointer" << std::endl;
             surgeLF = sp;
         }
         else

src/surge-xt/SurgeSynthProcessor.cpp

@@ -366,14 +366,7 @@ void SurgeSynthProcessor::prepareToPlay(double sr, int samplesPerBlock)
     }
 
     surge->setSamplerate(sr);
-
-#if SURGE_HAS_OSC
-    if ((!oscHandler.listening && surge->storage.oscStartIn && surge->storage.oscPortIn > 0) ||
-        (!oscHandler.sendingOSC && surge->storage.oscStartOut && surge->storage.oscPortOut > 0))
-    {
-        oscHandler.tryOSCStartup();
-    }
-#endif
+    oscCheckStartup = true;
 
     // It used to be we would set audio processing active true here *but* REAPER calls this for
     // inactive muted channels so we didn't load if that was the case. Set it true only
@@ -413,6 +406,14 @@ void SurgeSynthProcessor::processBlock(juce::AudioBuffer<float> &buffer,
         return;
     }
 
+#if SURGE_HAS_OSC
+    if (oscCheckStartup)
+    {
+        tryLazyOscStartupFromStreamedState();
+    }
+
+#endif
+
     priorCallWasProcessBlockNotBypassed = true;
 
     // Make sure we have a main output
@@ -1194,6 +1195,14 @@ void SurgeSynthProcessor::setStateInformation(const void *data, int sizeInBytes)
 
     surge->enqueuePatchForLoad(data, sizeInBytes);
     surge->processAudioThreadOpsWhenAudioEngineUnavailable();
+    if (surge->audio_processing_active)
+    {
+        oscCheckStartup = true;
+    }
+    else
+    {
+        tryLazyOscStartupFromStreamedState();
+    }
 }
 
 void SurgeSynthProcessor::surgeParameterUpdated(const SurgeSynthesizer::ID &id, float f)
@@ -1269,6 +1278,16 @@ juce::AudioProcessorParameter *SurgeSynthProcessor::getBypassParameter() const
 
 void SurgeSynthProcessor::reset() { blockPos = 0; }
 
+void SurgeSynthProcessor::tryLazyOscStartupFromStreamedState()
+{
+    if ((!oscHandler.listening && surge->storage.oscStartIn && surge->storage.oscPortIn > 0) ||
+        (!oscHandler.sendingOSC && surge->storage.oscStartOut && surge->storage.oscPortOut > 0))
+    {
+        oscHandler.tryOSCStartup();
+    }
+    oscCheckStartup = false;
+}
+
 #if HAS_CLAP_JUCE_EXTENSIONS
 
 uint32_t SurgeSynthProcessor::remoteControlsPageCount() noexcept

src/surge-xt/SurgeSynthProcessor.h

@@ -393,6 +393,8 @@ class SurgeSynthProcessor : public juce::AudioProcessor,
     sst::cpputils::SimpleRingBuffer<oscToAudio, 4096> oscRingBuf;
 
     Surge::OSC::OpenSoundControl oscHandler;
+    std::atomic<bool> oscCheckStartup{false};
+    void tryLazyOscStartupFromStreamedState();
 
     bool initOSCIn(int port);
     bool initOSCOut(int port);