From 3fb4b5e26c0125dda68b3858e8c3d9589244c211 Mon Sep 17 00:00:00 2001
From: Tillsunset <35825944+Tillsunset@users.noreply.github.com>
Date: Thu, 29 Sep 2022 04:36:27 -0500
Subject: [PATCH] MacOS+Linux: Use CLOCK_MONOTONIC_RAW over CLOCK_MONOTONIC
 (#313)

On MacOS this fixes the framerate being too high due to discontinuities in the timer that drives the emulated vsync. It also fixes behavior of the GetTickCount() wrapper.
---
 src/Common/unix/platform.cpp                         | 2 +-
 src/util/highresolutiontimer/HighResolutionTimer.cpp | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/Common/unix/platform.cpp b/src/Common/unix/platform.cpp
index d97f4e65..a111a625 100644
--- a/src/Common/unix/platform.cpp
+++ b/src/Common/unix/platform.cpp
@@ -4,6 +4,6 @@
 uint32_t GetTickCount()
 {
         struct timespec ts;
-	clock_gettime(CLOCK_MONOTONIC, &ts);
+	clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
         return (1000 * ts.tv_sec + ts.tv_nsec / 1000000);
 }
\ No newline at end of file
diff --git a/src/util/highresolutiontimer/HighResolutionTimer.cpp b/src/util/highresolutiontimer/HighResolutionTimer.cpp
index 21cabff5..510fdfa5 100644
--- a/src/util/highresolutiontimer/HighResolutionTimer.cpp
+++ b/src/util/highresolutiontimer/HighResolutionTimer.cpp
@@ -9,7 +9,7 @@ HighResolutionTimer HighResolutionTimer::now()
 	return HighResolutionTimer(pc.QuadPart);
 #else
     timespec pc;
-    clock_gettime(CLOCK_MONOTONIC, &pc);
+    clock_gettime(CLOCK_MONOTONIC_RAW, &pc);
     uint64 nsec = (uint64)pc.tv_sec * (uint64)1000000000 + (uint64)pc.tv_nsec;
     return HighResolutionTimer(nsec);
 #endif
@@ -28,7 +28,7 @@ uint64 HighResolutionTimer::m_freq = []() -> uint64 {
 	return (uint64)(freq.QuadPart);
 #else
     timespec pc;
-    clock_getres(CLOCK_MONOTONIC, &pc);
+    clock_getres(CLOCK_MONOTONIC_RAW, &pc);
     return (uint64)1000000000 / (uint64)pc.tv_nsec;
 #endif
 }();