From 6d59bc6c66ac4793500980d939a1f6cb28cad081 Mon Sep 17 00:00:00 2001
From: Hermet Park <hermet@lottiefiles.com>
Date: Fri, 17 Nov 2023 21:18:31 +0900
Subject: [PATCH] gif/saver: fix a invalid memory access

---
 src/savers/gif/tvgGifSaver.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/savers/gif/tvgGifSaver.cpp b/src/savers/gif/tvgGifSaver.cpp
index 1c7f4e2a..fe549094 100644
--- a/src/savers/gif/tvgGifSaver.cpp
+++ b/src/savers/gif/tvgGifSaver.cpp
@@ -41,6 +41,8 @@ void GifSaver::run(unsigned tid)
     buffer = (uint32_t*)realloc(buffer, sizeof(uint32_t) * w * h);
     canvas->target(buffer, w, w, h, tvg::SwCanvas::ABGR8888S);
     canvas->push(cast(bg));
+    bg = nullptr;
+
     canvas->push(cast(animation->picture()));
 
     //use the default fps
@@ -75,8 +77,6 @@ void GifSaver::run(unsigned tid)
     }
 
     if (!gifEnd(&writer)) TVGERR("GIF_SAVER", "Failed gif encoding");
-
-    this->bg = nullptr;
 }