| 1 | use std::io::{BufRead, Seek, SeekFrom}; |
|---|---|
| 2 | |
| 3 | use crate::{ |
| 4 | util::{read_u32, Endian}, |
| 5 | ImageResult, ImageSize, |
| 6 | }; |
| 7 | |
| 8 | pub fn size<R: BufRead + Seek>(reader: &mut R) -> ImageResult<ImageSize> { |
| 9 | reader.seek(pos:SeekFrom::Start(4))?; |
| 10 | |
| 11 | Ok(ImageSize { |
| 12 | width: read_u32(reader, &Endian::Big)? as usize, |
| 13 | height: read_u32(reader, &Endian::Big)? as usize, |
| 14 | }) |
| 15 | } |
| 16 | |
| 17 | pub fn matches(header: &[u8]) -> bool { |
| 18 | header.starts_with(needle:b"qoif") |
| 19 | } |
| 20 |