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Use 'div_ceil' to make clippy happy #129

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May 15, 2025
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Use 'div_ceil' to make clippy happy #129

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16 changes: 8 additions & 8 deletions src/vp8.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -804,11 +804,11 @@ pub struct Frame {
impl Frame {
/// Chroma plane is half the size of the Luma plane
const fn chroma_width(&self) -> u16 {
(self.width + 1) / 2
self.width.div_ceil(2)
}

const fn chroma_height(&self) -> u16 {
(self.height + 1) / 2
self.height.div_ceil(2)
}

/// Fills an rgb buffer with the image
Expand Down Expand Up @@ -1136,7 +1136,7 @@ impl<R: Read> Vp8Decoder<R> {
.expect("Reading from &[u8] can't fail and the chunk is complete");

let size = size as usize;
let mut buf = vec![[0; 4]; (size + 3) / 4];
let mut buf = vec![[0; 4]; size.div_ceil(4)];
let bytes: &mut [u8] = buf.as_mut_slice().as_flattened_mut();
self.r.read_exact(&mut bytes[..size])?;
self.partitions[i].init(buf, size)?;
Expand All @@ -1146,7 +1146,7 @@ impl<R: Read> Vp8Decoder<R> {
let mut buf = Vec::new();
self.r.read_to_end(&mut buf)?;
let size = buf.len();
let mut chunks = vec![[0; 4]; (size + 3) / 4];
let mut chunks = vec![[0; 4]; size.div_ceil(4)];
chunks.as_mut_slice().as_flattened_mut()[..size].copy_from_slice(&buf);
self.partitions[n - 1].init(chunks, size)?;

Expand Down Expand Up @@ -1293,8 +1293,8 @@ impl<R: Read> Vp8Decoder<R> {
// Almost always the first macro block, except when non exists (i.e. `width == 0`)
self.left = self.top.first().copied().unwrap_or_default();

self.mbwidth = (self.frame.width + 15) / 16;
self.mbheight = (self.frame.height + 15) / 16;
self.mbwidth = self.frame.width.div_ceil(16);
self.mbheight = self.frame.height.div_ceil(16);

self.frame.ybuf = vec![0u8; self.frame.width as usize * self.frame.height as usize];
self.frame.ubuf =
Expand All @@ -1307,7 +1307,7 @@ impl<R: Read> Vp8Decoder<R> {
}

let size = first_partition_size as usize;
let mut buf = vec![[0; 4]; (size + 3) / 4];
let mut buf = vec![[0; 4]; size.div_ceil(4)];
let bytes: &mut [u8] = buf.as_mut_slice().as_flattened_mut();
self.r.read_exact(&mut bytes[..size])?;

Expand Down Expand Up @@ -2215,7 +2215,7 @@ impl IntraMode {
}

fn init_top_macroblocks(width: usize) -> Vec<MacroBlock> {
let mb_width = (width + 15) / 16;
let mb_width = width.div_ceil(16);

let mb = MacroBlock {
// Section 11.3 #3
Expand Down
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