From e33b5c5e6c8db1759e34db43ea9defc5455ab6c7 Mon Sep 17 00:00:00 2001
From: Maxim Nikolenko <maximnproductengine@lindenlab.com>
Date: Wed, 17 Sep 2025 15:56:08 +0300
Subject: #4432 Change graphics quality via a debug setting

---
 indra/newview/app_settings/settings.xml | 15 +++++++++++++--
 indra/newview/llappviewer.cpp           |  1 +
 indra/newview/llfloaterpreference.cpp   |  1 +
 indra/newview/llviewercontrol.cpp       | 18 ++++++++++++++++++
 4 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index aa6a28f137..e1be629f15 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -9111,7 +9111,7 @@
     <key>RenderQualityPerformance</key>
     <map>
       <key>Comment</key>
-      <string>Which graphics settings you've chosen</string>
+      <string>Which graphics settings you've chosen. Don't use this setting to change quality directly from debug settings.</string>
       <key>Persist</key>
       <integer>1</integer>
       <key>Type</key>
@@ -9119,7 +9119,18 @@
       <key>Value</key>
       <integer>1</integer>
     </map>
-  
+    <key>DebugQualityPerformance</key>
+    <map>
+        <key>Comment</key>
+        <string>Allows to change performance quality directly from debug settings.</string>
+        <key>Persist</key>
+        <integer>1</integer>
+        <key>Type</key>
+        <string>U32</string>
+        <key>Value</key>
+        <integer>1</integer>
+    </map>
+
   <key>RenderReflectionDetail</key>
     <map>
       <key>Comment</key>
diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index 62a1aa9fb6..b7852d8549 100644
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -1263,6 +1263,7 @@ bool LLAppViewer::init()
     LLViewerCamera::createInstance();
     LL::GLTFSceneManager::createInstance();
 
+    gSavedSettings.setU32("DebugQualityPerformance", gSavedSettings.getU32("RenderQualityPerformance"));
 
 #if LL_WINDOWS
     if (!mSecondInstance)
diff --git a/indra/newview/llfloaterpreference.cpp b/indra/newview/llfloaterpreference.cpp
index 734cc73331..5a39d41478 100644
--- a/indra/newview/llfloaterpreference.cpp
+++ b/indra/newview/llfloaterpreference.cpp
@@ -1367,6 +1367,7 @@ void LLFloaterPreference::onChangeQuality(const LLSD& data)
     }
     mLastQualityLevel = level;
     LLFeatureManager::getInstance()->setGraphicsLevel(level, true);
+    gSavedSettings.setU32("DebugQualityPerformance", level);
     refreshEnabledGraphics();
     refresh();
 }
diff --git a/indra/newview/llviewercontrol.cpp b/indra/newview/llviewercontrol.cpp
index d39805f4c7..75cc76fee6 100644
--- a/indra/newview/llviewercontrol.cpp
+++ b/indra/newview/llviewercontrol.cpp
@@ -68,6 +68,8 @@
 #include "llrender.h"
 #include "llnavigationbar.h"
 #include "llnotificationsutil.h"
+#include "llfloaterpreference.h"
+#include "llfloaterreg.h"
 #include "llfloatertools.h"
 #include "llpaneloutfitsinventory.h"
 #include "llpanellogin.h"
@@ -149,6 +151,21 @@ static bool handleDebugAvatarJointsChanged(const LLSD& newvalue)
     return true;
 }
 
+static bool handleDebugQualityPerformanceChanged(const LLSD& newvalue)
+{
+    // control was set directly or after adjusting Preference setting, no need to update
+    if (gSavedSettings.getU32("RenderQualityPerformance") != gSavedSettings.getU32("DebugQualityPerformance"))
+    {
+        LLFloaterPreference* instance = LLFloaterReg::getTypedInstance<LLFloaterPreference>("preferences");
+        if (instance)
+        {
+            gSavedSettings.setU32("RenderQualityPerformance", newvalue.asInteger());
+            instance->onChangeQuality(newvalue);
+        }
+    }
+    return true;
+}
+
 static bool handleAvatarHoverOffsetChanged(const LLSD& newvalue)
 {
     if (isAgentAvatarValid())
@@ -946,6 +963,7 @@ void settings_setup_listeners()
     setting_setup_signal_listener(gSavedSettings, "SpellCheckDictionary", handleSpellCheckChanged);
     setting_setup_signal_listener(gSavedSettings, "LoginLocation", handleLoginLocationChanged);
     setting_setup_signal_listener(gSavedSettings, "DebugAvatarJoints", handleDebugAvatarJointsChanged);
+    setting_setup_signal_listener(gSavedSettings, "DebugQualityPerformance", handleDebugQualityPerformanceChanged);
 
     setting_setup_signal_listener(gSavedSettings, "TargetFPS", handleTargetFPSChanged);
     setting_setup_signal_listener(gSavedSettings, "AutoTuneFPS", handleAutoTuneFPSChanged);
-- 
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