From bc66fcb7846f5d7dccaadb9c5a99b5fc9d9c7f50 Mon Sep 17 00:00:00 2001
From: Paul Lemire <paul.lemire@kdab.com>
Date: Thu, 19 Sep 2024 15:46:34 +0200
Subject: [PATCH] SegmentVisitor: fix crash if vertexCount is 0

Change-Id: I97a981f65cad1e2f08f90b72adfbd4945cdc2f8b
Reviewed-by: Mike Krus <mike.krus@kdab.com>
(cherry picked from commit 26577c869f42d51fac29d282469c3ebe71974513)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 5a5b8438f4556d093236ee59e4a7d77844a61050)
---
 src/render/backend/segmentsvisitor.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/render/backend/segmentsvisitor.cpp b/src/render/backend/segmentsvisitor.cpp
index 16fa0ec0e..c6b38da62 100644
--- a/src/render/backend/segmentsvisitor.cpp
+++ b/src/render/backend/segmentsvisitor.cpp
@@ -150,6 +150,9 @@ void traverseSegmentStrip(Vertex *vertices,
 {
     uint i = 0;
 
+    if (vertexInfo.count < 1)
+        return;
+
     const uint verticesStride = vertexInfo.byteStride / sizeof(Vertex);
     const uint maxVerticesDataSize = qMin(vertexInfo.dataSize, 3U);