From 5ee774f4ecda6ab312239b0d2ab1d7849ff535b0 Mon Sep 17 00:00:00 2001
From: Andrey Kleshchev <andreykproductengine@lindenlab.com>
Date: Wed, 26 Oct 2022 22:40:16 +0300
Subject: SL-18446 Support "multiple textures" in Live material overrides

---
 indra/newview/llmaterialeditor.cpp | 35 +++++++++++++++++++++++++++--------
 1 file changed, 27 insertions(+), 8 deletions(-)

(limited to 'indra')

diff --git a/indra/newview/llmaterialeditor.cpp b/indra/newview/llmaterialeditor.cpp
index 58804a901f..a6d2729dfa 100644
--- a/indra/newview/llmaterialeditor.cpp
+++ b/indra/newview/llmaterialeditor.cpp
@@ -334,6 +334,7 @@ void LLMaterialEditor::setBaseColorId(const LLUUID& id)
 {
     mBaseColorTextureCtrl->setValue(id);
     mBaseColorTextureCtrl->setDefaultImageAssetID(id);
+    mBaseColorTextureCtrl->setTentative(FALSE);
 }
 
 void LLMaterialEditor::setBaseColorUploadId(const LLUUID& id)
@@ -409,6 +410,7 @@ void LLMaterialEditor::setMetallicRoughnessId(const LLUUID& id)
 {
     mMetallicTextureCtrl->setValue(id);
     mMetallicTextureCtrl->setDefaultImageAssetID(id);
+    mMetallicTextureCtrl->setTentative(FALSE);
 }
 
 void LLMaterialEditor::setMetallicRoughnessUploadId(const LLUUID& id)
@@ -452,6 +454,7 @@ void LLMaterialEditor::setEmissiveId(const LLUUID& id)
 {
     mEmissiveTextureCtrl->setValue(id);
     mEmissiveTextureCtrl->setDefaultImageAssetID(id);
+    mEmissiveTextureCtrl->setTentative(FALSE);
 }
 
 void LLMaterialEditor::setEmissiveUploadId(const LLUUID& id)
@@ -485,6 +488,7 @@ void LLMaterialEditor::setNormalId(const LLUUID& id)
 {
     mNormalTextureCtrl->setValue(id);
     mNormalTextureCtrl->setDefaultImageAssetID(id);
+    mNormalTextureCtrl->setTentative(FALSE);
 }
 
 void LLMaterialEditor::setNormalUploadId(const LLUUID& id)
@@ -2188,25 +2192,40 @@ bool LLMaterialEditor::setFromSelection()
 {
     struct LLSelectedTEGetGLTFRenderMaterial : public LLSelectedTEGetFunctor<LLPointer<LLGLTFMaterial> >
     {
-        LLPointer<LLGLTFMaterial> get(LLViewerObject* object, S32 te_index)
+        LLPointer<LLGLTFMaterial> get(LLViewerObject* objectp, S32 te_index)
         {
-            return object->getTE(te_index)->getGLTFRenderMaterial(); // present user with combined override + asset
+            if (!objectp)
+            {
+                return nullptr;
+            }
+            LLTextureEntry *tep = objectp->getTE(te_index);
+            if (!tep)
+            {
+                return nullptr;
+            }
+            return tep->getGLTFRenderMaterial(); // present user with combined override + asset
         }
     } func;
 
     LLPointer<LLGLTFMaterial> mat;
-    LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue(&func, mat);
+    bool identical = LLSelectMgr::getInstance()->getSelection()->getSelectedTEValue(&func, mat);
     if (mat.notNull())
     {
         setFromGLTFMaterial(mat);
-        return true;
+    }
+    else
+    {
+        // pick defaults from a blank material;
+        LLGLTFMaterial blank_mat;
+        setFromGLTFMaterial(&blank_mat);
     }
 
-    // pick defaults from a blank material;
-    LLGLTFMaterial blank_mat;
-    setFromGLTFMaterial(&blank_mat);
+    mBaseColorTextureCtrl->setTentative(!identical);
+    mMetallicTextureCtrl->setTentative(!identical);
+    mEmissiveTextureCtrl->setTentative(!identical);
+    mNormalTextureCtrl->setTentative(!identical);
 
-    return false;
+    return mat.notNull();
 }
 
 
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