From 7aea5cb88f9a8cc9f9ca52ecd4d13cfd7ab16e69 Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Sat, 22 Jan 2022 20:20:43 +0100
Subject: [PATCH] Enable high-res timers on Windows

This should fix issues like #11891, caused by the fps limiting
code being unable to operate correctly.
---
 src/CMakeLists.txt | 2 +-
 src/porting.cpp    | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index ed0929564..7f207244c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -268,7 +268,7 @@ if(WIN32)
 	else() # Probably MinGW = GCC
 		set(PLATFORM_LIBS "")
 	endif()
-	set(PLATFORM_LIBS ws2_32.lib version.lib shlwapi.lib ${PLATFORM_LIBS})
+	set(PLATFORM_LIBS ws2_32.lib version.lib shlwapi.lib winmm.lib ${PLATFORM_LIBS})
 
 	set(EXTRA_DLL "" CACHE FILEPATH "Optional paths to additional DLLs that should be packaged")
 
diff --git a/src/porting.cpp b/src/porting.cpp
index 4c87bddee..f78de39ad 100644
--- a/src/porting.cpp
+++ b/src/porting.cpp
@@ -35,6 +35,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	#include <algorithm>
 	#include <shlwapi.h>
 	#include <shellapi.h>
+	#include <mmsystem.h>
 #endif
 #if !defined(_WIN32)
 	#include <unistd.h>
@@ -766,6 +767,9 @@ bool open_directory(const std::string &path)
 
 inline double get_perf_freq()
 {
+	// Also use this opportunity to enable high-res timers
+	timeBeginPeriod(1);
+
 	LARGE_INTEGER freq;
 	QueryPerformanceFrequency(&freq);
 	return freq.QuadPart;
-- 
2.44.0