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use std::{fmt, str};
#[derive(Debug, Default, Copy, Clone, Eq)]
pub struct FourCC {
pub repr: [u8; 4],
}
impl FourCC {
#[allow(clippy::trivially_copy_pass_by_ref)]
pub fn new(repr: &[u8; 4]) -> FourCC {
FourCC { repr: *repr }
}
pub fn str(&self) -> Result<&str, str::Utf8Error> {
str::from_utf8(&self.repr)
}
}
impl fmt::Display for FourCC {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let string = str::from_utf8(&self.repr);
if let Ok(string) = string {
write!(f, "{}", string)?;
}
Ok(())
}
}
impl PartialEq for FourCC {
fn eq(&self, other: &FourCC) -> bool {
self.repr.iter().zip(other.repr.iter()).all(|(a, b)| a == b)
}
}
impl From<u32> for FourCC {
fn from(code: u32) -> Self {
let mut repr: [u8; 4] = [0; 4];
repr[0] = (code & 0xff) as u8;
repr[1] = ((code >> 8) & 0xff) as u8;
repr[2] = ((code >> 16) & 0xff) as u8;
repr[3] = ((code >> 24) & 0xff) as u8;
FourCC::new(&repr)
}
}
impl Into<u32> for FourCC {
fn into(self: FourCC) -> u32 {
let mut code: u32;
code = self.repr[0] as u32;
code |= (self.repr[1] as u32) << 8;
code |= (self.repr[2] as u32) << 16;
code |= (self.repr[3] as u32) << 24;
code
}
}