From 5605b4ee70bc82b82535f0af8b3b74ee5c23eca2 Mon Sep 17 00:00:00 2001
From: Ani <ani-leo@outlook.com>
Date: Thu, 16 Feb 2017 16:47:18 +0000
Subject: [PATCH] Fixes #2399

Defaults dGPU on NVIDIA Optimus systems and requests High Performance
mode on AMD systems.
---
 rpcs3/Emu/RSX/GL/OpenGL.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/rpcs3/Emu/RSX/GL/OpenGL.cpp b/rpcs3/Emu/RSX/GL/OpenGL.cpp
index 56a21dd6f8..58be31dac6 100644
--- a/rpcs3/Emu/RSX/GL/OpenGL.cpp
+++ b/rpcs3/Emu/RSX/GL/OpenGL.cpp
@@ -17,6 +17,14 @@ void gl::init()
 }
 
 #ifdef _WIN32
+
+extern "C" {
+	// NVIDIA Optimus: Default dGPU instead of iGPU (Driver: 302+)
+	_declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
+	// AMD: Request dGPU High Performance (Driver: 13.35+)
+	_declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
+}
+
 #define OPENGL_PROC(p, n) p gl##n = nullptr
 #define OPENGL_PROC2(p, n, tn) OPENGL_PROC(p, n)
 	#include "GLProcTable.h"