From 7fbffb2930be25a800e779da7fc44912fcc12696 Mon Sep 17 00:00:00 2001
From: Matthew <wakinchau@msn.com>
Date: Mon, 24 Feb 2025 19:18:44 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E9=94=99=E8=AF=AF=E4=BF=9D?=
 =?UTF-8?q?=E6=8A=A4?=
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---
 app/src/main/cpp/PhoneDevice.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/app/src/main/cpp/PhoneDevice.cpp b/app/src/main/cpp/PhoneDevice.cpp
index 025930fa..c389b26b 100644
--- a/app/src/main/cpp/PhoneDevice.cpp
+++ b/app/src/main/cpp/PhoneDevice.cpp
@@ -2171,6 +2171,10 @@ void visualize(const char* filename, const ncnn::Mat& m)
 
 void DrawOutlineText(cv::Ptr<cv::ft::FreeType2> ft2, cv::Mat& mat, const std::string& str, cv::Point startPoint, int fontSize, cv::Scalar clr, int thickness)
 {
+    if (mat.empty())
+    {
+        return;
+    }
     std::vector<std::string> lines = split(str, "\n");
     int lineHeight = 0;
     cv::Point pt = startPoint;