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Mark a few methods as inline in header mod

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This commit is contained in:
Ivan Smirnov 2021-12-01 17:07:32 +00:00
parent 7446a0f171
commit 4067d83829
1 changed files with 6 additions and 0 deletions
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6
src/header.rs
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@ -13,6 +13,7 @@ pub struct Header {
} }
impl Default for Header { impl Default for Header {
#[inline]
fn default() -> Self { fn default() -> Self {
Self { Self {
magic: QOI_MAGIC, magic: QOI_MAGIC,
@ -24,6 +25,7 @@ impl Default for Header {
} }
} }
#[inline(always)]
const fn u32_to_be(v: u32) -> [u8; 4] { const fn u32_to_be(v: u32) -> [u8; 4] {
[ [
((0xff000000 & v) >> 24) as u8, ((0xff000000 & v) >> 24) as u8,
@ -33,6 +35,7 @@ const fn u32_to_be(v: u32) -> [u8; 4] {
] ]
} }
#[inline(always)]
const fn u32_from_be(v: &[u8]) -> u32 { const fn u32_from_be(v: &[u8]) -> u32 {
((v[0] as u32) << 24) | ((v[1] as u32) << 16) | ((v[2] as u32) << 8) | (v[3] as u32) ((v[0] as u32) << 24) | ((v[1] as u32) << 16) | ((v[2] as u32) << 8) | (v[3] as u32)
} }
@ -40,6 +43,7 @@ const fn u32_from_be(v: &[u8]) -> u32 {
impl Header { impl Header {
pub const SIZE: usize = QOI_HEADER_SIZE; pub const SIZE: usize = QOI_HEADER_SIZE;
#[inline]
pub(crate) fn to_bytes(&self) -> [u8; QOI_HEADER_SIZE] { pub(crate) fn to_bytes(&self) -> [u8; QOI_HEADER_SIZE] {
let mut out = [0; QOI_HEADER_SIZE]; let mut out = [0; QOI_HEADER_SIZE];
out[..4].copy_from_slice(&u32_to_be(self.magic)); out[..4].copy_from_slice(&u32_to_be(self.magic));
@ -50,6 +54,7 @@ impl Header {
out out
} }
#[inline]
pub(crate) fn from_bytes(v: [u8; QOI_HEADER_SIZE]) -> Self { pub(crate) fn from_bytes(v: [u8; QOI_HEADER_SIZE]) -> Self {
let mut out = Self::default(); let mut out = Self::default();
out.magic = u32_from_be(&v[..4]); out.magic = u32_from_be(&v[..4]);
@ -60,6 +65,7 @@ impl Header {
out out
} }
#[inline]
pub const fn n_pixels(&self) -> usize { pub const fn n_pixels(&self) -> usize {
(self.width as usize).saturating_mul(self.height as usize) (self.width as usize).saturating_mul(self.height as usize)
} }