works

1 files changed, 3 insertions, 4 deletions

diff --git a/test2/src/main.rs b/test2/src/main.rs
index 0b69026..aca978e 100644
--- a/test2/src/main.rs
+++ b/test2/src/main.rs
@@ -43,6 +43,7 @@ impl Frame {
             buf.extend(&self.data[y_off as usize..(y_off + BLOCK_SIZE) as usize]);
         }
     }
+    #[allow(unused)]
     fn import_block(&mut self, off: IVec2, buf: &[u8]) -> usize {
         let mut p = 0;
         // Luma
@@ -68,8 +69,7 @@ impl Frame {
             let y_off = off.x + (y + off.y) * self.res.x;
             let i = y * BLOCK_SIZE;
             for x in 0..BLOCK_SIZE {
-                self.data[(y_off + x) as usize] = self.data[(y_off + x) as usize]
-                    .saturating_add_signed(buf[(i + x) as usize] as i8 - 127);
+                self.data[(y_off + x) as usize] += buf[(i + x) as usize] as u8;
             }
         }
         // Chroma
@@ -78,8 +78,7 @@ impl Frame {
             let y_off = uvplane_off + (off.x & !1) + (y + off.y / 2) * self.res.x;
             let i = BLOCK_SIZE * BLOCK_SIZE + y * BLOCK_SIZE;
             for x in 0..BLOCK_SIZE {
-                self.data[(y_off + x) as usize] = self.data[(y_off + x) as usize]
-                    .saturating_add_signed(buf[(i + x) as usize] as i8 - 127);
+                self.data[(y_off + x) as usize] += buf[(i + x) as usize] as u8;
             }
         }
         (BLOCK_SIZE * BLOCK_SIZE + BLOCK_SIZE * BLOCK_SIZE / 2) as usize