From 3df3c876cca14dbc5f5b1b91d3831f45c7e79326 Mon Sep 17 00:00:00 2001
From: Ben Meadors <benmmeadors@gmail.com>
Date: Fri, 5 Sep 2025 06:22:21 -0500
Subject: [PATCH] TFTDisplay destructor

---
 src/graphics/TFTDisplay.cpp | 9 +++++++++
 src/graphics/TFTDisplay.h   | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/src/graphics/TFTDisplay.cpp b/src/graphics/TFTDisplay.cpp
index b1814005e..37ea9b94a 100644
--- a/src/graphics/TFTDisplay.cpp
+++ b/src/graphics/TFTDisplay.cpp
@@ -1128,6 +1128,15 @@ TFTDisplay::TFTDisplay(uint8_t address, int sda, int scl, OLEDDISPLAY_GEOMETRY g
 #endif
 }
 
+TFTDisplay::~TFTDisplay()
+{
+    // Clean up allocated line pixel buffer to prevent memory leak
+    if (linePixelBuffer != nullptr) {
+        free(linePixelBuffer);
+        linePixelBuffer = nullptr;
+    }
+}
+
 // Write the buffer to the display memory
 void TFTDisplay::display(bool fromBlank)
 {
diff --git a/src/graphics/TFTDisplay.h b/src/graphics/TFTDisplay.h
index 27672ad29..a64922d23 100644
--- a/src/graphics/TFTDisplay.h
+++ b/src/graphics/TFTDisplay.h
@@ -20,6 +20,9 @@ class TFTDisplay : public OLEDDisplay
     */
     TFTDisplay(uint8_t, int, int, OLEDDISPLAY_GEOMETRY, HW_I2C);
 
+    // Destructor to clean up allocated memory
+    ~TFTDisplay();
+
     // Write the buffer to the display memory
     virtual void display() override { display(false); };
     virtual void display(bool fromBlank);