From 971e91238a303134d6ea97367fcccf411475c692 Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Sat, 31 Jul 2021 16:19:55 +1000
Subject: [PATCH] [client] main: bump the minimum fps to 60fps when showing the
 overlay

---
 client/src/main.c | 7 ++++++-
 client/src/main.h | 3 ++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/client/src/main.c b/client/src/main.c
index 6ff0144d..cf0891d2 100644
--- a/client/src/main.c
+++ b/client/src/main.c
@@ -174,7 +174,8 @@ static int renderThread(void * unused)
       {
         /* only update the time if we woke up early */
         clock_gettime(CLOCK_MONOTONIC, &time);
-        tsAdd(&time, g_state.frameTime);
+        tsAdd(&time, g_state.overlayInput ?
+            g_state.overlayFrameTime : g_state.frameTime);
       }
     }
 
@@ -945,6 +946,10 @@ static int lg_run(void)
     g_state.frameTime = 1000000000ULL / (unsigned long long)g_params.fpsMin;
   }
 
+  // when the overlay is shown we should run at a minimum of 60 fps for
+  // interactivity.
+  g_state.overlayFrameTime = min(g_state.frameTime, 1000000000ULL / 60ULL);
+
   keybind_register();
 
   // setup the startup condition
diff --git a/client/src/main.h b/client/src/main.h
index 18ea70fd..68df03fc 100644
--- a/client/src/main.h
+++ b/client/src/main.h
@@ -109,7 +109,8 @@ struct AppState
   LGEvent             * frameEvent;
   atomic_bool           invalidateWindow;
   bool                  formatValid;
-  atomic_uint_least64_t frameTime;
+  uint64_t              frameTime;
+  uint64_t              overlayFrameTime;
   uint64_t              lastFrameTime;
   bool                  lastFrameTimeValid;
   uint64_t              lastRenderTime;