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https://github.com/levydsa/qoiz
QOI image format decoder/encoder.
https://github.com/levydsa/qoiz
qoi-format zig ziglang
Last synced: about 1 month ago
JSON representation
QOI image format decoder/encoder.
- Host: GitHub
- URL: https://github.com/levydsa/qoiz
- Owner: levydsa
- License: mit
- Created: 2023-11-21T19:45:10.000Z (about 1 year ago)
- Default Branch: master
- Last Pushed: 2024-07-15T19:02:49.000Z (5 months ago)
- Last Synced: 2024-11-15T11:36:23.987Z (about 1 month ago)
- Topics: qoi-format, zig, ziglang
- Language: Zig
- Homepage:
- Size: 2.73 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: readme.md
- License: LICENSE
Awesome Lists containing this project
- awesome-zig - qoiz🗒️A simple and fast implementation of the QOI image format decoder and encoder.
README
A simple and fast implementation of the QOI image format decoder and encoder.
## Examples
```zig
const qoiz = @import("qoiz");
test "image init reader" {
const file = try fs.cwd().openFile("src/bench/data/dice.qoi", .{});
defer file.close();
const image = try qoiz.Image(.rgb).initReader(testing.allocator, file.reader());
defer image.deinit();
}
```
## Benchmark
```console
$ zig build bench --release=fast -- qoiz 1028
dice : dec. 1.182ms ±σ 0.046ms | enc. 2.258ms ±σ 1.181ms
edgecase : dec. 0.015ms ±σ 0.001ms | enc. 0.038ms ±σ 0.015ms
kodim10 : dec. 3.760ms ±σ 0.136ms | enc. 7.463ms ±σ 3.744ms
kodim23 : dec. 3.696ms ±σ 0.035ms | enc. 7.384ms ±σ 3.695ms
qoi_logo : dec. 0.078ms ±σ 0.002ms | enc. 0.188ms ±σ 0.078ms
testcard : dec. 0.123ms ±σ 0.004ms | enc. 0.255ms ±σ 0.123ms
testcard_rgba : dec. 0.132ms ±σ 0.004ms | enc. 0.271ms ±σ 0.132ms
wikipedia_008 : dec. 9.707ms ±σ 0.167ms | enc. 19.508ms ±σ 9.680ms
zero : dec. 0.378ms ±σ 0.023ms | enc. 0.772ms ±σ 0.378ms
```
Another library for zig made by @ikskuh
```console
$ zig build bench --release=fast -- zigqoi 1028
dice : dec. 2.477ms ±σ 0.086ms | enc. 2.617ms ±σ 2.471ms
edgecase : dec. 0.019ms ±σ 0.001ms | enc. 0.064ms ±σ 0.019ms
kodim10 : dec. 4.468ms ±σ 0.082ms | enc. 6.644ms ±σ 4.462ms
kodim23 : dec. 4.502ms ±σ 0.131ms | enc. 6.668ms ±σ 4.486ms
qoi_logo : dec. 0.117ms ±σ 0.004ms | enc. 0.333ms ±σ 0.117ms
testcard : dec. 0.162ms ±σ 0.005ms | enc. 0.321ms ±σ 0.162ms
testcard_rgba : dec. 0.178ms ±σ 0.004ms | enc. 0.309ms ±σ 0.178ms
wikipedia_008 : dec. 12.448ms ±σ 0.251ms | enc. 16.965ms ±σ 12.387ms
zero : dec. 0.542ms ±σ 0.011ms | enc. 1.062ms ±σ 0.542ms
```
Reference implementation in C
```console
$ zig build bench --release=fast -- reference 1028
dice : dec. 1.236ms ±σ 0.046ms | enc. 1.535ms ±σ 1.235ms
edgecase : dec. 0.027ms ±σ 0.002ms | enc. 0.037ms ±σ 0.027ms
kodim10 : dec. 3.230ms ±σ 0.065ms | enc. 3.157ms ±σ 3.226ms
kodim23 : dec. 3.165ms ±σ 0.055ms | enc. 3.021ms ±σ 3.162ms
qoi_logo : dec. 0.148ms ±σ 0.005ms | enc. 0.246ms ±σ 0.148ms
testcard : dec. 0.139ms ±σ 0.005ms | enc. 0.191ms ±σ 0.139ms
testcard_rgba : dec. 0.146ms ±σ 0.005ms | enc. 0.204ms ±σ 0.146ms
wikipedia_008 : dec. 8.343ms ±σ 0.123ms | enc. 9.346ms ±σ 8.329ms
zero : dec. 0.496ms ±σ 0.015ms | enc. 0.766ms ±σ 0.496ms
```