Renderer: Add NAZARA_REQUEST_DEDICATED_GPU macro

include/Nazara/Renderer.hpp

@@ -36,6 +36,7 @@
 #include <Nazara/Renderer/DebugDrawer.hpp>
 #include <Nazara/Renderer/Enums.hpp>
 #include <Nazara/Renderer/Framebuffer.hpp>
+#include <Nazara/Renderer/GpuSwitch.hpp>
 #include <Nazara/Renderer/RenderBuffer.hpp>
 #include <Nazara/Renderer/RenderBufferView.hpp>
 #include <Nazara/Renderer/RenderDevice.hpp>

include/Nazara/Renderer/GpuSwitch.hpp

@@ -0,0 +1,20 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Renderer module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Prerequisites.hpp>
+
+#ifdef NAZARA_PLATFORM_WINDOWS
+
+#define NAZARA_REQUEST_DEDICATED_GPU() \
+extern "C" \
+{ \
+	NAZARA_EXPORT unsigned long NvOptimusEnablement = 1; \
+	NAZARA_EXPORT unsigned long AmdPowerXpressRequestHighPerformance = 1; \
+}
+
+#else
+
+#define NAZARA_REQUEST_DEDICATED_GPU()
+
+#endif