From 777441ef0f064dfa38a10919d3f384907adab06b Mon Sep 17 00:00:00 2001
From: "Joakim L. Gilje" <jgilje@jgilje.net>
Date: Mon, 13 Dec 2021 15:19:38 +0100
Subject: [PATCH] when sleeping main emu. thread, take drawits into account
 like in win.c

---
 src/qt/qt_main.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/qt/qt_main.cpp b/src/qt/qt_main.cpp
index 5872b1131..2bb158f9b 100644
--- a/src/qt/qt_main.cpp
+++ b/src/qt/qt_main.cpp
@@ -57,8 +57,13 @@ main_thread_fn()
                 nvr_dosave = 0;
                 frames = 0;
             }
-        } else	/* Just so we dont overload the host OS. */
-            std::this_thread::sleep_for(std::chrono::milliseconds(1));
+        } else {
+            /* Just so we dont overload the host OS. */
+            if (drawits < -1)
+                std::this_thread::sleep_for(std::chrono::milliseconds(1));
+            else
+                std::this_thread::yield();
+        }
 
         /* If needed, handle a screen resize. */
         if (doresize && !video_fullscreen && !is_quit) {