From 8c0b0853e4d1d3a2e37480a63b9d086ffed32802 Mon Sep 17 00:00:00 2001
From: DeFiDude <59237470+DeFiDude@users.noreply.github.com>
Date: Mon, 23 Mar 2026 17:57:34 -0600
Subject: [PATCH] Fix GT911 touch coordinate axes for T-Deck Plus display
 orientation

Swap X/Y axes and invert Y so (0, 0) maps to the top-left corner,
matching the physical display orientation on the T-Deck Plus.
Patch suggested by scotty007 in PR #10.
---
 src/hal/TouchInput.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hal/TouchInput.cpp b/src/hal/TouchInput.cpp
index 52fd561..f5dc065 100644
--- a/src/hal/TouchInput.cpp
+++ b/src/hal/TouchInput.cpp
@@ -79,10 +79,11 @@ bool TouchInput::readGT911() {
     }
 
     uint8_t trackId = Wire.read();
-    _x = Wire.read() | (Wire.read() << 8);
     _y = Wire.read() | (Wire.read() << 8);
+    _x = Wire.read() | (Wire.read() << 8);
     Wire.read() | (Wire.read() << 8); // size (unused)
 
+    _y = TFT_HEIGHT - 1 - _y;
     _touched = true;
 
     // Clear buffer status