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https://github.com/chinedufn/psd
A Rust API for parsing and working with PSD files.
https://github.com/chinedufn/psd
Last synced: 12 days ago
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A Rust API for parsing and working with PSD files.
- Host: GitHub
- URL: https://github.com/chinedufn/psd
- Owner: chinedufn
- License: apache-2.0
- Created: 2019-02-24T05:18:08.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2024-08-21T04:48:35.000Z (3 months ago)
- Last Synced: 2024-10-18T07:11:08.808Z (25 days ago)
- Language: Rust
- Homepage: https://chinedufn.github.io/psd
- Size: 3.42 MB
- Stars: 267
- Watchers: 4
- Forks: 40
- Open Issues: 29
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE-APACHE
Awesome Lists containing this project
- awesome-list - psd
README
psd
===
[](https://circleci.com/gh/chinedufn/psd) [](https://docs.rs/psd)
> A Rust API for parsing and working with PSD files.
## Live Demo
The `psd` crate can be compiled to WebAssembly and used in a browser.
[In the live demo you can visualize a PSD in the browser](https://chinedufn.github.io/psd/drag-drop-demo/),
toggle layers on and off and drag and drop a new PSD into the demo.
Check out the [examples/drag-drop-browser](examples/drag-drop-browser) directory for instructions on running the demo locally.
## The Psd Book
The _WIP_ [The Psd Book](https://chinedufn.github.io/psd) will contain information about getting started with the `psd` crate,
a description of the architecture and information on how to get started.
## API Docs
Check out the [API documentation](https://chinedufn.github.io/psd/api/psd) to see everything that you can currently access.
## Background / Initial Motivation
I'm working on a game and part of my asset compilation process was a script that did the following:
1. Iterate over all PSD files
2. Export every PSD into a PNG, ignoring any layers that begin with an `_`
3. Combine PNGs into a texture atlas
For a couple of years I was using `imagemagick` to power step 2, but after getting a new laptop and upgrading `imagemagick` versions it stopped working.
After a bit of Googling I couldn't land on a solution for my problem so I decided to make this crate.
My approach was to support as much of the PSD spec as I needed, so there might be bits of information that you'd like to make use of that aren't currently supported.
That said, if there's anything missing that you need [please feel very free to open an issue](https://github.com/chinedufn/psd/issues)!
## Usage
```rust
use psd::{ColorMode, Psd, PsdChannelCompression};
fn main () {
// .. Get a byte slice of PSD file data somehow ..
let psd = include_bytes!("./my-psd-file.psd");
let psd = Psd::from_bytes(psd).unwrap();
assert_eq!(psd.color_mode(), ColorMode::Rgb);
// For this PSD the final combined image is RleCompressed
assert_eq!(psd.compression(), &PsdChannelCompression::RleCompressed);
assert_eq!(psd.width(), 500);
assert_eq!(psd.height(), 500);
// Get the combined final image for the PSD.
let final_image: Vec = psd.rgba();
for layer in psd.layers().iter() {
let name = layer.name();
let pixels: Vec = layer.rgba().unwrap();
}
let green_layer = psd.layer_by_name("Green Layer").unwrap();
// In this layer the red channel is uncompressed
assert_eq!(green_layer.compression(&PsdChannelKind::Red).unwrap(), PsdChannelCompression::RawData);
// In this layer the green channel is RLE compressed
assert_eq!(green_layer.compression(&PsdChannelKind::Green).unwrap(), PsdChannelCompression::RleCompressed);
// Combine the PSD layers top to bottom, ignoring any layers that begin with an `_`
let pixels: Vec = psd.flatten_layers_rgba(&|(_idx, layer)| {
!layer.name().starts_with("_")
}).unwrap();
}
```
## See Also
- [PSD specification](https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/) - the basis of our API
## License
MIT