Cli to convert between image formats and qoi. Attempt to port qoi.h to rust-lang.
```bash $ cargo install qoiconv-rs $ qoiconv-rs -i input.png -o output.qoi # convert form image to qoi $ qoiconv-rs -i input.qoi -o output.png # convert from qoi to image
```
Copy qoi.rs to your source file and add it as a mod.
Example of decoding pixels from .qoi file:
```rust use std::fs::File; use std::io::BufReader; mod qoi; use qoi::*;
fn main() {
// load file and get bytes (use BufReader to speed up reads)
let file = File::open("wikipedia_008.qoi").unwrap();
let mut bytes = BufReader::new(file);
// get pixels and descriptor
let (data, desc) = qoi_decode(bytes, None).unwrap();
}
```
Example of encoding pixels into .qoi file:
```rust
use std::fs::File;
use std::io::Write;
mod qoi;
use qoi::*;
fn main() {
// get pixels and make valid descriptor
// pixels must be laid out in order RGB(A)
let pixels = [255, 0, 0, 15, 1, 255, 255, 255, 191, 255, 0, 0, 15, 1, 74];
let desc = QoiDescriptor {
width: pixels.len() / 3,
height: 1,
channels: ChanelMode::Rgb,
colorspace: Colorspace::Linear,
};
let bytes = qoi_encode(&pixels, &desc).unwrap();
let mut f = File::create("example.qoi").unwrap();
f.write_all(bytes.as_slice()).unwrap();
} ```
Use cargo to test and fuzz the program (you'll need to install cargo-fuzz): ```bash cargo test
cargo install cargo-fuzzcargo fuzz run qoi-test-pixels ``` To run benches against c test program run:
TODO implement new benchmark to compare against c
This implementation is 2x slower then c implementation probably due to smaller buffer size of BufReader.