From 474484d249ffca0d2b0a19f14cd2bc212bb430be Mon Sep 17 00:00:00 2001
From: cepetr <petr@cerninovi.cz>
Date: Mon, 19 Feb 2024 11:41:42 +0100
Subject: [PATCH] feat(core): introduce new toif functions

[no changelog]
---
 core/embed/rust/src/ui/display/toif.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/core/embed/rust/src/ui/display/toif.rs b/core/embed/rust/src/ui/display/toif.rs
index b39dd94eed..1f2bcff8d6 100644
--- a/core/embed/rust/src/ui/display/toif.rs
+++ b/core/embed/rust/src/ui/display/toif.rs
@@ -271,6 +271,14 @@ impl<'i> Toif<'i> {
         Offset::new(self.width(), self.height())
     }
 
+    pub fn stride(&self) -> usize {
+        if self.is_grayscale() {
+            (self.width() + 1) as usize / 2
+        } else {
+            self.width() as usize * 2
+        }
+    }
+
     pub fn zdata(&self) -> &'i [u8] {
         &self.data[TOIF_HEADER_LENGTH..]
     }