From b5db671f7c28eb2a9f9974df1c34cf8c025fb8cc Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Tue, 29 Nov 2022 09:15:02 -0600
Subject: SL-18682 WIP -- Add debug settings that aid in emulating low end
 hardware.

---
 indra/newview/app_settings/settings.xml | 33 +++++++++++++++++++++++++++++++++
 indra/newview/llviewerobjectlist.cpp    |  3 ++-
 indra/newview/llviewerwindow.cpp        | 10 +++++++++-
 3 files changed, 44 insertions(+), 2 deletions(-)

(limited to 'indra/newview')

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 9f10e5cac5..8c96ccd107 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -9221,6 +9221,28 @@
       <key>Value</key>
       <integer>0</integer>
     </map>
+  <key>RenderMaxOpenGLVersion</key>
+  <map>
+    <key>Comment</key>
+    <string>Maximum OpenGL version to attempt use (minimum 3.2 maximum 4.6).  Requires restart.</string>
+    <key>Persist</key>
+    <integer>1</integer>
+    <key>Type</key>
+    <string>F32</string>
+    <key>Value</key>
+    <real>4.6</real>
+  </map>
+  <key>RenderMaxVRAMBudget</key>
+  <map>
+    <key>Comment</key>
+    <string>Maximum amount of texture memory to budget for, or 0 for autodetect.  Requires restart.</string>
+    <key>Persist</key>
+    <integer>1</integer>
+    <key>Type</key>
+    <string>U32</string>
+    <key>Value</key>
+    <integer>0</integer>
+  </map>
   <key>RenderMaxTextureIndex</key>
   <map>
     <key>Comment</key>
@@ -16901,5 +16923,16 @@
     <key>Value</key>
     <string></string>
   </map>
+  <key>EmulateCoreCount</key>
+  <map>
+    <key>Comment</key>
+    <string>For debugging -- number of cores to restrict the main process to, or 0 for no limit.  Requires restart.</string>
+    <key>Persist</key>
+    <integer>1</integer>
+    <key>Type</key>
+    <string>U32</string>
+    <key>Value</key>
+    <integer>0</integer>
+  </map>
 </map>
 </llsd>
diff --git a/indra/newview/llviewerobjectlist.cpp b/indra/newview/llviewerobjectlist.cpp
index 955979e605..dc0785f990 100644
--- a/indra/newview/llviewerobjectlist.cpp
+++ b/indra/newview/llviewerobjectlist.cpp
@@ -789,7 +789,7 @@ void LLViewerObjectList::updateApparentAngles(LLAgent &agent)
 		max_value = llmin((S32) mObjects.size(), mCurLazyUpdateIndex + num_updates);
 	}
 
-
+#if 0
 	// Slam priorities for textures that we care about (hovered, selected, and focused)
 	// Hovered
 	// Assumes only one level deep of parenting
@@ -820,6 +820,7 @@ void LLViewerObjectList::updateApparentAngles(LLAgent &agent)
 		}
 	} func;
 	LLSelectMgr::getInstance()->getSelection()->applyToRootObjects(&func);
+#endif
 
 	// Iterate through some of the objects and lazy update their texture priorities
 	for (i = mCurLazyUpdateIndex; i < max_value; i++)
diff --git a/indra/newview/llviewerwindow.cpp b/indra/newview/llviewerwindow.cpp
index 88058d1137..5bbb18ed30 100644
--- a/indra/newview/llviewerwindow.cpp
+++ b/indra/newview/llviewerwindow.cpp
@@ -1878,6 +1878,11 @@ LLViewerWindow::LLViewerWindow(const Params& p)
 	U32 fsaa_samples)
 	*/
 	// create window
+
+    U32 max_core_count = gSavedSettings.getU32("EmulateCoreCount");
+    U32 max_vram = gSavedSettings.getU32("RenderMaxVRAMBudget");
+    F32 max_gl_version = gSavedSettings.getF32("RenderMaxOpenGLVersion");
+    
 	mWindow = LLWindowManager::createWindow(this,
 		p.title, p.name, p.x, p.y, p.width, p.height, 0,
 		p.fullscreen, 
@@ -1885,7 +1890,10 @@ LLViewerWindow::LLViewerWindow(const Params& p)
 		gSavedSettings.getBOOL("RenderVSyncEnable"),
 		!gHeadlessClient,
 		p.ignore_pixel_depth,
-		0); //don't use window level anti-aliasing
+		0,
+        max_core_count,
+        max_vram,
+        max_gl_version); //don't use window level anti-aliasing
 
 	if (NULL == mWindow)
 	{
-- 
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