Optimize LatentSync resync for VRR displays

SpecialKO · Nov 4, 2024 · 060a998 · 060a998
1 parent 57b0010
commit 060a998
Showing 1 changed file with 12 additions and 7 deletions.
diff --git a/src/framerate.cpp b/src/framerate.cpp
@@ -2060,13 +2060,18 @@ SK::Framerate::Limiter::wait (void)
 
     bool bSync = false;
 
-    static int                     iTry  = 0; // First time signals resync
-    if (                           iTry == 0 || (rb.gsync_state.active == false && (
-      config.render.framerate.latent_sync.scanline_resync != 0 &&
-                                  (iTry++ %
-        config.render.framerate.latent_sync.scanline_resync) == 0
-                                                 ))
-       )                                bSync = true;
+    static int iSkips = 0;
+    static int                       iTry  = 0; // First time signals resync
+    if (                             iTry == 0 || (rb.gsync_state.active == false || (++iSkips % 50) == 0) && (
+        config.render.framerate.latent_sync.scanline_resync  != 0 &&
+                                    (iTry++ %
+        config.render.framerate.latent_sync.scanline_resync) == 0 )
+       )
+    {
+      bSync  = true;
+      iSkips = 0;
+    }
+
     if (D3DKMTGetScanLine != nullptr && bSync)
     {
       __scanline.lock.requestResync ();