From 4e5eb884ed482c9be21e290622d85c4b7798d69a Mon Sep 17 00:00:00 2001
From: wheremyfoodat <44909372+wheremyfoodat@users.noreply.github.com>
Date: Thu, 6 Jul 2023 01:38:20 +0300
Subject: [PATCH] Ask Windows to give us a dGPU instead of an iGPU

---
 src/emulator.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/emulator.cpp b/src/emulator.cpp
index 76a10698..d675e66f 100644
--- a/src/emulator.cpp
+++ b/src/emulator.cpp
@@ -1,5 +1,15 @@
 #include "emulator.hpp"
 
+#ifdef _WIN32
+#include <windows.h>
+
+// Gently ask to use the discrete Nvidia/AMD GPU if possible instead of integrated graphics
+extern "C" {
+_declspec(dllexport) DWORD NvOptimusEnablement = 1;
+_declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 1;
+}
+#endif
+
 Emulator::Emulator() : kernel(cpu, memory, gpu), cpu(memory, kernel), gpu(memory, gl), memory(cpu.getTicksRef()) {
 	if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS) < 0) {
 		Helpers::panic("Failed to initialize SDL2");