From 755325d6c8faa897ee686452831cb544d6c72d75 Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Tue, 7 Mar 2023 21:52:04 +0100
Subject: more magic

---
 lvc/src/diff.rs | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'lvc/src/diff.rs')

diff --git a/lvc/src/diff.rs b/lvc/src/diff.rs
index 354f146..fbb6b0a 100644
--- a/lvc/src/diff.rs
+++ b/lvc/src/diff.rs
@@ -1,4 +1,4 @@
-use crate::{Frame, Ref, View, P2};
+use crate::{Frame, Pixel, Ref, View, P2};
 
 // 4ms
 pub fn diff([frame1, frame2]: [&Frame; 2], view: View, rp: Ref) -> u32 {
@@ -8,14 +8,17 @@ pub fn diff([frame1, frame2]: [&Frame; 2], view: View, rp: Ref) -> u32 {
             let pos = P2 { x, y };
             let p1 = frame1[pos + rp.pos_off] + rp.color_off;
             let p2 = frame2[pos];
-            k += p1.r.abs_diff(p2.r) as u32
-                + p1.g.abs_diff(p2.g) as u32
-                + p1.b.abs_diff(p2.b) as u32;
+            k += pixel_diff(p1, p2)
         }
     }
     k
 }
 
+#[inline(always)]
+pub fn pixel_diff(p1: Pixel, p2: Pixel) -> u32 {
+    p1.r.abs_diff(p2.r) as u32 + p1.g.abs_diff(p2.g) as u32 + p1.b.abs_diff(p2.b) as u32
+}
+
 // pub fn fast_diff([frame1, frame2]: [&Frame; 2], view: View, rp: Ref) -> u32 {
 //     assert!(view.size().x % 5 == 0);
 
-- 
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