perf: cache Cocoa software MTLBuffer and optimize Wayland output/focus loops

1 files changed, 14 insertions, 11 deletions

diff --git a/src/wayland/buffer.c b/src/wayland/buffer.c
index 0561da3..4cddfa5 100644
--- a/src/wayland/buffer.c
+++ b/src/wayland/buffer.c
@@ -200,24 +200,27 @@ static const struct wp_fractional_scale_v1_listener frac_scale_listener = {
     .preferred_scale = fractional_preferred_scale,
 };
 
-static void surface_follow_refresh(struct wayland_surface *w)
+void surface_follow_outputs(struct wayland_surface *w)
 {
     uint32_t refresh = 0;
-    for (const struct wl_conn_output *o = w->conn->outputs; o; o = o->next)
-        if ((o->mask & w->outputs) && o->refresh_ns &&
-            (!refresh || o->refresh_ns < refresh))
-            refresh = o->refresh_ns;
+    int32_t max_scale = 0;
+    bool need_scale = !w->frac_scale && !surface_gets_preferred_scale(w->surface);
+
+    for (const struct wl_conn_output *o = w->conn->outputs; o; o = o->next) {
+        if (o->mask & w->outputs) {
+            if (o->refresh_ns && (!refresh || o->refresh_ns < refresh))
+                refresh = o->refresh_ns;
+            if (need_scale && o->scale > max_scale)
+                max_scale = o->scale;
+        }
+    }
     if (!refresh && w->conn->outputs)
         refresh = w->conn->outputs->refresh_ns;
     if (refresh)
         w->clock.refresh_ns = refresh;
-}
 
-void surface_follow_outputs(struct wayland_surface *w)
-{
-    surface_follow_refresh(w);
-    if (!w->frac_scale && !surface_gets_preferred_scale(w->surface))
-        surface_request_scale(w, conn_output_scale_120(w->conn, w->outputs));
+    if (need_scale)
+        surface_request_scale(w, (uint32_t)max_scale * YASL_SCALE_UNIT);
 }
 
 static void surface_enter(void *data, struct wl_surface *surface, struct wl_output *output)