fix(windows): prefer discrete GPU on hybrid graphics systems, Add NvOptimusEnablement and AmdPowerXpressRequestHighPerformance exports to hint the NVIDIA/AMD driver to select the discrete GPU on Windows hybrid graphics system (#218)

Signed-off-by: Vikas Kendre <vikaskendre1989@gmail.com>

Author: VIKASKENDRE

src/launch/xstudio/src/xstudio.cpp

@@ -1,5 +1,12 @@
 // SPDX-License-Identifier: Apache-2.0
 
+#ifdef _WIN32
+extern "C" {
+    __declspec(dllexport) unsigned long NvOptimusEnablement = 0x00000001;        // NVIDIA
+    __declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;          // AMD
+}
+#endif
+
 #include <args/args.hxx>
 #include <chrono>
 #include <csignal>