From 9e794f358b7d44b4e04346dffbd684b2860d6fcc Mon Sep 17 00:00:00 2001
From: Ivan Chinenov <hjvt@hjvt.dev>
Date: Fri, 14 Feb 2025 08:15:45 +0300
Subject: feat: support for setting tablet calibration matrix; this allows for
 rotating tablet inputs (#1122)

* feat: support for setting tablet calibration matrix

* Change default matrix
---
 src/input/mod.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src/input')

diff --git a/src/input/mod.rs b/src/input/mod.rs
index 8d9e6d82..a2931b85 100644
--- a/src/input/mod.rs
+++ b/src/input/mod.rs
@@ -3451,6 +3451,20 @@ pub fn apply_libinput_settings(config: &niri_config::Input, device: &mut input::
         } else {
             input::SendEventsMode::ENABLED
         });
+
+        #[rustfmt::skip]
+        const IDENTITY_MATRIX: [f32; 6] = [
+            1., 0., 0.,
+            0., 1., 0.,
+        ];
+
+        let _ = device.config_calibration_set_matrix(
+            c.calibration_matrix
+                .as_deref()
+                .and_then(|m| m.try_into().ok())
+                .or(device.config_calibration_default_matrix())
+                .unwrap_or(IDENTITY_MATRIX),
+        );
         let _ = device.config_left_handed_set(c.left_handed);
     }
 }
-- 
cgit