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windows: prefer discrete GPU on hybrid-graphics systems

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Andrei Alexeyev 2017-10-09 10:00:59 +03:00
parent f4b3178eae
commit 0dbd045a31
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GPG key ID: 363707CD4C7FE8A4
2 changed files with 26 additions and 0 deletions
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1
src/CMakeLists.txt
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@ -123,6 +123,7 @@ set(SRCs
if(WIN32)
set(SRCs ${SRCs}
windows_misc.c
vfs/syspath_win32.c)
else()
set(SRCs ${SRCs}

25
src/windows_misc.c Normal file
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@ -0,0 +1,25 @@
/*
* This software is licensed under the terms of the MIT-License
* See COPYING for further information.
* ---
* Copyright (c) 2011-2017, Lukas Weber <laochailan@web.de>.
* Copyright (c) 2012-2017, Andrei Alexeyev <akari@alienslab.net>.
*/
#include <windows.h>
/*
* This is here for Windows laptops with hybrid graphics.
* We tell the driver to prefer the fast GPU over the integrated one by default.
*/
// Nvidia:
// http://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf
__declspec(dllexport) DWORD NvOptimusEnablement = 0x00000001;
// AMD:
// https://community.amd.com/thread/169965
// https://stackoverflow.com/questions/17458803/amd-equivalent-to-nvoptimusenablement
__declspec(dllexport) DWORD AmdPowerXpressRequestHighPerformance = 0x00000001;