From 604e090372f47bcc1fa537bf01df5b79259b2032 Mon Sep 17 00:00:00 2001
From: reuk <reuk@users.noreply.github.com>
Date: Thu, 25 May 2023 20:12:38 +0100
Subject: [PATCH] VST3 Host: Update host parameter values when only plugin
 AudioProcessor reports changes

---
 .../format_types/juce_VST3PluginFormat.cpp               | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/modules/juce_audio_processors/format_types/juce_VST3PluginFormat.cpp b/modules/juce_audio_processors/format_types/juce_VST3PluginFormat.cpp
index 2e0bfc54f6..701eae8eb1 100644
--- a/modules/juce_audio_processors/format_types/juce_VST3PluginFormat.cpp
+++ b/modules/juce_audio_processors/format_types/juce_VST3PluginFormat.cpp
@@ -2225,7 +2225,7 @@ public:
         for (const auto* item : queues)
         {
             auto* ptr = item->ptr.get();
-            callback (ptr->getParameterIndex(), ptr->get());
+            callback (ptr->getParameterIndex(), ptr->getParameterId(), ptr->get());
         }
     }
 
@@ -2734,9 +2734,12 @@ public:
 
         processor->process (data);
 
-        outputParameterChanges->forEach ([&] (Steinberg::int32 index, float value)
+        outputParameterChanges->forEach ([&] (Steinberg::int32 index, Vst::ParamID id, float value)
         {
-            parameterDispatcher.push (index, value);
+            cachedParamValues.setWithoutNotifying (index, value);
+
+            if (auto* param = getParameterForID (id))
+                param->setValueWithoutUpdatingProcessor (value);
         });
 
         midiMessages.clear();