From 4e9f6500d0e541c6aa4377499e1d23c62b13f36b Mon Sep 17 00:00:00 2001
From: Quentin Bazin <quent42340@gmail.com>
Date: Sun, 26 Jan 2020 15:54:59 +0900
Subject: [PATCH] [client/main] Added some code to use dedicated GPU on Windows
 (thanks to Hopson).

---
 client/source/main.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/client/source/main.cpp b/client/source/main.cpp
index b7f43ff7..8b763727 100644
--- a/client/source/main.cpp
+++ b/client/source/main.cpp
@@ -13,6 +13,19 @@
  */
 #include "ClientApplication.hpp"
 
+// Use discrete GPU by default in Windows
+// from https://gist.github.com/statico/6809850727c708f08458
+// Thanks to Hopson for pointing this out
+#ifdef _WIN32
+extern "C" {
+	// http://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf
+	__declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
+
+	// https://gpuopen.com/amdpowerxpressrequesthighperformance/
+	__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
+}
+#endif
+
 int main(int argc, char **argv) {
 	ClientApplication app(argc, argv);
 	app.run();