rom_thumbnails/
lib.rs

1//! This crate contains decoding functions for the embedded icons of
2//! several video game console ROM formats.
3//!
4//! The main use-case is to write thumbnailers for file managers.
5use camino::Utf8PathBuf;
6
7pub mod error;
8pub mod image;
9pub mod nds;
10
11/// Extracts the thumbnail for a given `path` as an `image::RgbaImage`.
12///
13/// # Errors
14/// All errors are contained in variants of the [`ThumbnailerError`] enum.
15///
16/// [`ThumbnailerError`]: error/enum.ThumbnailerError.html
17///
18pub fn extract_thumbnail(path: &str) -> Result<image::Image, error::ThumbnailerError> {
19    let path = Utf8PathBuf::from(path);
20    match path.extension() {
21        None => Err(error::ThumbnailerError::NoExtension),
22        Some(ext) => match ext {
23            "nds" => nds::extract_thumbnail(&path),
24            _ => Err(error::ThumbnailerError::UnsupportedExtension),
25        },
26    }
27}