imagesize/formats/
dds.rs

1use std::io::{BufRead, Seek, SeekFrom};
2
3use crate::{
4    util::{read_u32, Endian},
5    ImageResult, ImageSize,
6};
7
8pub fn size<R: BufRead + Seek>(reader: &mut R) -> ImageResult<ImageSize> {
9    reader.seek(SeekFrom::Start(12))?;
10    let height = read_u32(reader, &Endian::Little)? as usize;
11    let width = read_u32(reader, &Endian::Little)? as usize;
12    Ok(ImageSize { width, height })
13}
14
15pub fn matches(header: &[u8]) -> bool {
16    header.starts_with(b"DDS ")
17}