From a85f16b8965908bbdb9d41493ef4dbf44025579f Mon Sep 17 00:00:00 2001
From: stevstrong <stevestrong@online.de>
Date: Thu, 1 Sep 2016 14:11:13 +0200
Subject: [PATCH] ILI9325/8 bug: negative X2 coordinate

ILI9325/8: When values 1 or 3 are passed to function setRotation(), the function setAddrWindow() will produce negative X2 coordinate.
---
 Adafruit_TFTLCD.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Adafruit_TFTLCD.cpp b/Adafruit_TFTLCD.cpp
index 69f6a83..a97d05c 100644
--- a/Adafruit_TFTLCD.cpp
+++ b/Adafruit_TFTLCD.cpp
@@ -393,6 +393,7 @@ void Adafruit_TFTLCD::setAddrWindow(int x1, int y1, int x2, int y2) {
      case 1:
       t  = y1;
       y1 = x1;
+      if ( y2>(TFTWIDTH-1) ) y2 = (TFTWIDTH-1);
       x1 = TFTWIDTH  - 1 - y2;
       y2 = x2;
       x2 = TFTWIDTH  - 1 - t;
@@ -413,6 +414,7 @@ void Adafruit_TFTLCD::setAddrWindow(int x1, int y1, int x2, int y2) {
       t  = x1;
       x1 = y1;
       y1 = TFTHEIGHT - 1 - x2;
+      if ( y2>(TFTWIDTH-1) ) y2 = (TFTWIDTH-1);
       x2 = y2;
       y2 = TFTHEIGHT - 1 - t;
       x  = x1;