From d5b4f78abf5e7d8d152f1905479c39d0ad1f13e9 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Thu, 21 Nov 2024 10:55:53 +0000
Subject: [PATCH] Add option to block nvapi

---
 renderdoc/driver/ihv/nv/nvapi_hooks.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/renderdoc/driver/ihv/nv/nvapi_hooks.cpp b/renderdoc/driver/ihv/nv/nvapi_hooks.cpp
index e2a72165d..055f164bf 100644
--- a/renderdoc/driver/ihv/nv/nvapi_hooks.cpp
+++ b/renderdoc/driver/ihv/nv/nvapi_hooks.cpp
@@ -25,6 +25,7 @@
 #include <unordered_map>
 #include "common/formatting.h"
 #include "core/core.h"
+#include "core/settings.h"
 #include "driver/d3d11/d3d11_hooks.h"
 #include "hooks/hooks.h"
 #include "nvapi_wrapper.h"
@@ -34,6 +35,9 @@
 
 #include "official/nvapi/nvapi.h"
 
+RDOC_CONFIG(bool, NV_BlockNVAPI, false,
+            "Completely block nvapi from activating, pretend no NV GPU is present");
+
 namespace
 {
 #include "official/nvapi/nvapi_interface.h"
@@ -503,6 +507,9 @@ private:
 
   static NvAPI_Status __cdecl NvAPI_Initialize_hook()
   {
+    if(NV_BlockNVAPI())
+      return NVAPI_NVIDIA_DEVICE_NOT_FOUND;
+
     NvAPI_Status ret = nvhooks.NvAPI_Initialize()();
 
     if(ret == NVAPI_OK)