From e575d122a16cb6ab2da76bcb769ddccc87486a33 Mon Sep 17 00:00:00 2001
From: Malte Langermann <malte@langermann.net>
Date: Wed, 19 Jan 2022 21:11:51 +0100
Subject: [PATCH] use the lvgl canvas buffer to directly draw on

---
 radio/src/thirdparty/libopenui/src/mainwindow.cpp | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/radio/src/thirdparty/libopenui/src/mainwindow.cpp b/radio/src/thirdparty/libopenui/src/mainwindow.cpp
index 8300bc18f..f8e211c15 100644
--- a/radio/src/thirdparty/libopenui/src/mainwindow.cpp
+++ b/radio/src/thirdparty/libopenui/src/mainwindow.cpp
@@ -193,15 +193,13 @@ void MainWindow::invalidate(const rect_t & rect)
 }
 #include "lvgl/lvgl.h"
 extern lv_obj_t * canvas;
-extern BitmapBuffer lcdBackup;
+extern BitmapBuffer canBuf;
 bool MainWindow::refresh()
 {
   if (invalidatedRect.w) {
-    lcdBackup.setOffset(0, 0);
-    lcdBackup.setClippingRect(0,LCD_W,0, LCD_H);
-    fullPaint(&lcdBackup);
-    lv_canvas_copy_buf(canvas, lcdBackup.getData(), 0, 0, LCD_W, LCD_H);
-    lv_img_cache_invalidate_src(lcdBackup.getData());
+    canBuf.setOffset(0, 0);
+    canBuf.setClippingRect(0,LCD_W,0, LCD_H);
+    fullPaint(&canBuf);
     lv_obj_invalidate(canvas);
   }
   return false;