From 9b44f2eaea136cae30543ecbad96827af7ff579c Mon Sep 17 00:00:00 2001
From: Simon Hausmann <simon.hausmann@slint.dev>
Date: Wed, 6 Sep 2023 17:05:17 +0200
Subject: [PATCH] bugfix: Fix length of returned buffer on x11 when using the
 wire-transferred buffer

total_len() computes the number of bytes, while the wire Vec holds u32.
---
 CHANGELOG.md | 4 ++++
 src/x11.rs   | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index eb3ff80..0ed55f4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# UNRELEASED
+
+* On X11, fix the length of the returned buffer when using the wire-transferred buffer.
+
 # 0.3.0
 
 * On MacOS, the contents scale is updated when set_buffer() is called, to adapt when the window is on a new screen (#68).
diff --git a/src/x11.rs b/src/x11.rs
index e8b273c..c9e546f 100644
--- a/src/x11.rs
+++ b/src/x11.rs
@@ -486,7 +486,7 @@ impl Buffer {
         match self {
             Buffer::Shm(ref mut shm) => shm.alloc_segment(conn, total_len(width, height)),
             Buffer::Wire(wire) => {
-                wire.resize(total_len(width, height), 0);
+                wire.resize(total_len(width, height) / 4, 0);
                 Ok(())
             }
         }