From 42bf617798a9cd096046d7a9fca3b7b4d23a7a6a Mon Sep 17 00:00:00 2001
From: Brian Whitman <brian@variogr.am>
Date: Sun, 16 Jun 2024 11:18:12 -0400
Subject: [PATCH] .

---
 tulip/linux/main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tulip/linux/main.c b/tulip/linux/main.c
index 98e82aa6d..821c07e3d 100644
--- a/tulip/linux/main.c
+++ b/tulip/linux/main.c
@@ -907,6 +907,12 @@ int main(int argc, char **argv) {
     while(c>=0) {
         // unix_display_draw returns -1 if the window was quit
         c = unix_display_draw();
+        if(c>=0) {
+            // Figure out how long to sleep. ticks has the amount of time already spent for this frame
+            // so let's fill in the rest with a usleep.
+            int sleep_ms_for_frame = (int) ((1000.0/TARGET_DESKTOP_FPS) - ticks);
+            if(sleep_ms_for_frame > 0) usleep(1000*sleep_ms_for_frame);
+        }
     }
     if(c==-2) {
         // signal to restart display after a timing change