https://github.com/vixalien/gvips
Vips for GJS
https://github.com/vixalien/gvips
Last synced: 2 months ago
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Vips for GJS
- Host: GitHub
- URL: https://github.com/vixalien/gvips
- Owner: vixalien
- License: mit
- Created: 2023-05-11T07:50:25.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2023-08-28T12:30:50.000Z (almost 2 years ago)
- Last Synced: 2025-02-05T01:29:48.561Z (4 months ago)
- Language: TypeScript
- Size: 818 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# GVIPS: libvips for GJS
This is a GJS binding for [libvips]. It allows running the highly performant
image processing library under GJS.
> Note: This is a work in progress. It is not ready for use.
## Installation
### From NPM
```bash
npm install gvips
```
### From Source
- [libvips] and make sure you also have the development files (e.g.
`libvips-dev` on Debian/Ubuntu or `vips-devel` on Fedora/CentOS).
- GJS
- Meson and Ninja
- Yarn
### Building
The build system relies on Meson (and ninja) and Yarn. By building GVIPS, you
also build **Gvips-Ext**, which is a thin wrapper that provides functions that
are not exposed by libvips' GObject Introspection data.
```sh
meson setup build
ninja -C build
ninja yarn_build -C build
```
## Usage
To use the library, do:
```js
import Vips from "gi://Vips";
import { initWrappers } from "gvips/dist/wrapper";
import { vips_image_write_to_file } from "gvips/dist/image";
// convenience wrappers for vips operations
initWrappers();
const image = Vips.Image.black(100, 100);
const [output, meta] = image.autorot({
output: ["angle", "flip"],
});
console.log(
"image was rotated " + meta.angle + " degrees. flipped: " + meta.flip,
);
vips_image_write_to_file(output, "test.png");
```
or you can let gvips initialise the wrappers for you by directly importing from
`gvips`.
```js
import Vips from "gvips";
const image = Vips.Image.black(100, 100);
// ...
```
## Testing your code
You can use the file `test/main.ts` to write test code, then run the following
file to compile and execute the code.
```sh
yarn test
```
## License
This project is licensed under the MIT Licence - see the [LICENCE](LICENCE) file
for details.
[libvips]: https://libvips.org/
[LICENCE]: ./LICENCE