54afa6f69f
Bumping the image crate for better support of image formats. The latest version does not have a `BGRA` type it only has `RGBA` it doesn't really matter as the size is the same but the type name is a little confusing as we need it as `BGRA`. Also there is no `into_bgra8` but we can use `into_rgba8` but then it must be converted before creating the `ImageData`. Release Notes: - N/A
76 lines
1.9 KiB
Rust
76 lines
1.9 KiB
Rust
use crate::{size, DevicePixels, Result, SharedString, Size};
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use image::RgbaImage;
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use std::{
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borrow::Cow,
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fmt,
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hash::Hash,
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sync::atomic::{AtomicUsize, Ordering::SeqCst},
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};
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/// A source of assets for this app to use.
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pub trait AssetSource: 'static + Send + Sync {
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/// Load the given asset from the source path.
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fn load(&self, path: &str) -> Result<Option<Cow<'static, [u8]>>>;
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/// List the assets at the given path.
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fn list(&self, path: &str) -> Result<Vec<SharedString>>;
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}
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impl AssetSource for () {
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fn load(&self, _path: &str) -> Result<Option<Cow<'static, [u8]>>> {
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Ok(None)
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}
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fn list(&self, _path: &str) -> Result<Vec<SharedString>> {
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Ok(vec![])
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}
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}
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/// A unique identifier for the image cache
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#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
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pub struct ImageId(usize);
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#[derive(PartialEq, Eq, Hash, Clone)]
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pub(crate) struct RenderImageParams {
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pub(crate) image_id: ImageId,
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}
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/// A cached and processed image.
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pub struct ImageData {
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/// The ID associated with this image
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pub id: ImageId,
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data: RgbaImage,
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}
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impl ImageData {
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/// Create a new image from the given data.
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pub fn new(data: RgbaImage) -> Self {
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static NEXT_ID: AtomicUsize = AtomicUsize::new(0);
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Self {
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id: ImageId(NEXT_ID.fetch_add(1, SeqCst)),
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data,
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}
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}
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/// Convert this image into a byte slice.
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pub fn as_bytes(&self) -> &[u8] {
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&self.data
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}
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/// Get the size of this image, in pixels
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pub fn size(&self) -> Size<DevicePixels> {
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let (width, height) = self.data.dimensions();
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size(width.into(), height.into())
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}
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}
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impl fmt::Debug for ImageData {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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f.debug_struct("ImageData")
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.field("id", &self.id)
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.field("size", &self.data.dimensions())
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.finish()
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}
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}
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