use lazy_static::lazy_static;
use std::collections::HashMap;
use std::sync::{Arc, Mutex};
use vello::peniko::{Blob, Extend, Format, Image as PenikoImage};
lazy_static! {
static ref IMAGE_CACHE: Mutex<HashMap<String, Arc<PenikoImage>>> = Mutex::new(HashMap::new());
}
pub struct ImageManager;
impl ImageManager {
pub fn get_image(path: &str) -> Option<Arc<PenikoImage>> {
let mut cache = IMAGE_CACHE.lock().unwrap();
if let Some(img) = cache.get(path) {
return Some(img.clone());
}
#[cfg(feature = "svg")]
if path.ends_with(".svg") {
let svg_data = std::fs::read(path).ok()?;
let opt = usvg::Options::default();
let tree = usvg::Tree::from_data(&svg_data, &opt).ok()?;
let size = tree.size();
let mut pixmap =
resvg::tiny_skia::Pixmap::new(size.width() as u32, size.height() as u32)?;
resvg::render(
&tree,
resvg::tiny_skia::Transform::default(),
&mut pixmap.as_mut(),
);
let data = Arc::new(pixmap.take());
let peniko_img = Arc::new(PenikoImage {
data: Blob::new(data),
format: vello::peniko::Format::Rgba8,
width: size.width() as u32,
height: size.height() as u32,
extend: vello::peniko::Extend::Pad,
});
cache.insert(path.to_string(), peniko_img.clone());
return Some(peniko_img);
}
#[cfg(not(feature = "svg"))]
if path.ends_with(".svg") {
eprintln!(
"Error: SVG support is disabled. Enable the 'svg' feature to load '{}'",
path
);
return None;
}
#[cfg(feature = "image")]
match image::open(path) {
Ok(img) => {
let rgba = img.to_rgba8();
let (width, height) = rgba.dimensions();
let data = Arc::new(rgba.into_raw());
let peniko_img = Arc::new(PenikoImage {
data: Blob::new(data),
format: Format::Rgba8,
width,
height,
extend: Extend::Pad,
});
cache.insert(path.to_string(), peniko_img.clone());
return Some(peniko_img);
}
Err(e) => {
eprintln!("Error: Failed to load image at '{}': {}", path, e);
}
}
None
}
}