From d451c304b76ce525cf9dfc9e2e2fee13f1b0f135 Mon Sep 17 00:00:00 2001
From: gennyble <gen@nyble.dev>
Date: Mon, 11 Sep 2023 20:09:33 -0500
Subject: ahh2

---
 prism/src/rotate.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 prism/src/rotate.rs

(limited to 'prism/src/rotate.rs')

diff --git a/prism/src/rotate.rs b/prism/src/rotate.rs
new file mode 100644
index 0000000..82f29d1
--- /dev/null
+++ b/prism/src/rotate.rs
@@ -0,0 +1,11 @@
+pub fn rotate_180<T: Copy>(data: &mut [T]) {
+	let mut rat = vec![data[0]; data.len()];
+
+	for (idx, px) in data.chunks(3).rev().enumerate() {
+		rat[idx * 3] = px[0];
+		rat[idx * 3 + 1] = px[1];
+		rat[idx * 3 + 2] = px[2];
+	}
+
+	data.copy_from_slice(&rat);
+}
-- 
cgit 1.4.1-3-g733a5