From 3e6f0e63f3027f19a83c6a2ddcf52018d30f2751 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Thu, 7 Mar 2024 16:21:06 +0100
Subject: [PATCH] sixel: don't try to emit a sixel if we're outside the image's
 boundaries

Closes #1634
---
 sixel.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sixel.c b/sixel.c
index f3d57fb2..7684e657 100644
--- a/sixel.c
+++ b/sixel.c
@@ -1549,6 +1549,9 @@ sixel_add_one_ar_11(struct terminal *term, uint8_t c)
         resize_horizontally(term, col + count);
         width = term->sixel.image.width;
         count = min(count, max(width - col, 0));
+
+        if (unlikely(count == 0))
+            return;
     }
 
     sixel_add_ar_11(term, term->sixel.image.p, width, term->sixel.color, c);