From ab5db7fde23ef6cd87fa8a7e07973179a80e02d4 Mon Sep 17 00:00:00 2001
From: BobTheBob <32057864+BobTheBob9@users.noreply.github.com>
Date: Sat, 12 Nov 2022 14:16:38 +0000
Subject: allow vmts do be loaded from disk (#292)

---
 NorthstarDLL/NorthstarDLL.vcxproj         |  1 +
 NorthstarDLL/NorthstarDLL.vcxproj.filters |  3 +++
 NorthstarDLL/diskvmtfixes.cpp             | 16 ++++++++++++++++
 3 files changed, 20 insertions(+)
 create mode 100644 NorthstarDLL/diskvmtfixes.cpp

(limited to 'NorthstarDLL')

diff --git a/NorthstarDLL/NorthstarDLL.vcxproj b/NorthstarDLL/NorthstarDLL.vcxproj
index d39fd68b..90dced09 100644
--- a/NorthstarDLL/NorthstarDLL.vcxproj
+++ b/NorthstarDLL/NorthstarDLL.vcxproj
@@ -572,6 +572,7 @@
     <ClCompile Include="clientruihooks.cpp" />
     <ClCompile Include="clientvideooverrides.cpp" />
     <ClCompile Include="concommand.cpp" />
+    <ClCompile Include="diskvmtfixes.cpp" />
     <ClCompile Include="exploitfixes_lzss.cpp" />
     <ClCompile Include="keyvalues.cpp" />
     <ClCompile Include="limits.cpp" />
diff --git a/NorthstarDLL/NorthstarDLL.vcxproj.filters b/NorthstarDLL/NorthstarDLL.vcxproj.filters
index f5d5bd5d..8dfbe685 100644
--- a/NorthstarDLL/NorthstarDLL.vcxproj.filters
+++ b/NorthstarDLL/NorthstarDLL.vcxproj.filters
@@ -1697,6 +1697,9 @@
     <ClCompile Include="scriptdatatables.cpp">
       <Filter>Source Files\Scripted</Filter>
     </ClCompile>
+    <ClCompile Include="diskvmtfixes.cpp">
+      <Filter>Source Files\Client</Filter>
+    </ClCompile>
     <ClCompile Include="keyvalues.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/NorthstarDLL/diskvmtfixes.cpp b/NorthstarDLL/diskvmtfixes.cpp
new file mode 100644
index 00000000..f5f3e2cd
--- /dev/null
+++ b/NorthstarDLL/diskvmtfixes.cpp
@@ -0,0 +1,16 @@
+#include "pch.h"
+
+ON_DLL_LOAD_CLIENT("materialsystem_dx11.dll", DiskVMTFixes, (CModule module))
+{
+	// in retail VMTs will never load if cache read is invalid due to a special case for them in KeyValues::LoadFromFile
+	// this effectively makes it impossible to load them from mods because we invalidate cache for doing this
+	// so uhh, stop that from happening
+
+	// tbh idk why they even changed any of this what's the point it looks like it works fine who cares my god
+
+	// matsystem KeyValues::LoadFromFile: patch special case on cache read failure for vmts
+	module.Offset(0x1281B9).Patch("EB");
+
+	// CMaterialSystem::FindMaterial: don't call function that crashes if previous patch is applied
+	module.Offset(0x5F55A).NOP(5);
+}
-- 
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