From c95bc9658502160cfd0a4ace2b9560b7ee347393 Mon Sep 17 00:00:00 2001
From: Riley <Riley@trigon.systems>
Date: Tue, 28 May 2024 00:45:55 -0500
Subject: [PATCH] Add safety checks in core for renderer.

---
 Amalgam/src/Core/Core.cpp | 78 +++++++++++++++++++++++++++------------
 1 file changed, 55 insertions(+), 23 deletions(-)

diff --git a/Amalgam/src/Core/Core.cpp b/Amalgam/src/Core/Core.cpp
index a9075fd..d9aceec 100644
--- a/Amalgam/src/Core/Core.cpp
+++ b/Amalgam/src/Core/Core.cpp
@@ -8,6 +8,31 @@
 #include "../Features/Visuals/Visuals.h"
 #include "../Hooks/Direct3DDevice9_Present.h"
 
+__forceinline bool CheckRenderIsCompatible()
+{
+	// Check for if we are running in DXVK mode.
+	if(GetModuleHandleA("dxvk_d3d9.dll"))
+	{
+		MessageBoxA(nullptr, "You are running with graphics options that Amalgam does not support.\n"
+			"Please remove -vulkan from your launch options and reinject.", "Error", MB_ICONERROR);
+		U::Core.bUnload = true;
+		return false;
+	}
+
+	// Check for if we are running in DirectX 8.
+	auto cvDXLevel = I::CVar->FindVar("mat_dxlevel");
+	auto iLevel = cvDXLevel->GetInt();
+	if(iLevel < 90)
+	{
+		std::string fmt = std::format("You are running with graphics options that Amalgam does not support.\nPlease remove -dxlevel {} from your launch options and reinject.\0", iLevel);
+		MessageBox(nullptr, fmt.c_str(), "Error", MB_ICONERROR);
+		U::Core.bUnload = true;
+		return false;
+	}
+
+	return true;
+}
+
 void CCore::Load()
 {
 	// Check the DirectX version
@@ -15,11 +40,16 @@ void CCore::Load()
 	U::Signatures.Initialize();
 	U::Interfaces.Initialize();
 
+	U::ConVars.Initialize();
+
+	if(!CheckRenderIsCompatible())
+		return;
+
 	MH_Initialize();
 	DirectX::Startup();
 	U::Hooks.Initialize();
 	DirectX::bIsReady.store(true);
-	U::ConVars.Initialize();
+	
 	F::Materials.LoadMaterials();
 	F::Commands.Initialize();
 
@@ -31,32 +61,34 @@ void CCore::Load()
 
 void CCore::Unload()
 {
-	G::Unload = true;
-	DirectX::bIsReady.store(false);
-
-	U::Hooks.Unload();
-	U::ConVars.Unload();
-	F::Materials.UnloadMaterials();
-
-	F::Visuals.RestoreWorldModulation();
-	Vars::Visuals::World::SkyboxChanger.Value = "Off"; // hooks won't run, remove here
-	if (I::Input->CAM_IsThirdPerson())
+	if(!bUnload)
 	{
-		auto pLocal = H::Entities.GetLocal();
-		if (pLocal)
+		G::Unload = true;
+		DirectX::bIsReady.store(false);
+
+		U::Hooks.Unload();
+		U::ConVars.Unload();
+		F::Materials.UnloadMaterials();
+
+		F::Visuals.RestoreWorldModulation();
+		Vars::Visuals::World::SkyboxChanger.Value = "Off"; // hooks won't run, remove here
+		if(I::Input->CAM_IsThirdPerson())
 		{
-			I::Input->CAM_ToFirstPerson();
-			pLocal->ThirdPersonSwitch();
+			auto pLocal = H::Entities.GetLocal();
+			if(pLocal)
+			{
+				I::Input->CAM_ToFirstPerson();
+				pLocal->ThirdPersonSwitch();
+			}
 		}
+		if(auto cl_wpn_sway_interp = U::ConVars.FindVar("cl_wpn_sway_interp"))
+			cl_wpn_sway_interp->SetValue(0.f);
+		if(auto cl_wpn_sway_scale = U::ConVars.FindVar("cl_wpn_sway_scale"))
+			cl_wpn_sway_scale->SetValue(0.f);
+
+		Sleep(250);
 	}
-	if (auto cl_wpn_sway_interp = U::ConVars.FindVar("cl_wpn_sway_interp"))
-		cl_wpn_sway_interp->SetValue(0.f);
-	if (auto cl_wpn_sway_scale = U::ConVars.FindVar("cl_wpn_sway_scale"))
-		cl_wpn_sway_scale->SetValue(0.f);
-
-	Sleep(250);
-
-	SDK::Output("Amalgam", "Unloaded", { 175, 150, 255, 255 });
+	SDK::Output("Amalgam", "Unloaded", {175, 150, 255, 255});
 }
 
 bool CCore::ShouldUnload()