From ce763e0c4b7048ef562320d521116cd0581c17c6 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Mon, 10 Feb 2025 17:02:55 +0530
Subject: [PATCH] Cleaner handling of negative y

---
 kitty/decorations.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kitty/decorations.c b/kitty/decorations.c
index 54e79da0d..27530d42e 100644
--- a/kitty/decorations.c
+++ b/kitty/decorations.c
@@ -128,9 +128,9 @@ add_dashed_underline(uint8_t *buf, FontCellMetrics fcm) {
 }
 
 static unsigned
-add_intensity(uint8_t *buf, unsigned x, unsigned y, uint8_t val, unsigned max_y, unsigned position, unsigned cell_width) {
+add_intensity(uint8_t *buf, unsigned x, int y, uint8_t val, unsigned max_y, unsigned position, unsigned cell_width) {
     y += position;
-    y = min(y, max_y);
+    y = min(MAX(0, y), max_y);
     unsigned idx = cell_width * y + x;
     buf[idx] = min(255, buf[idx] + val);
     return y;