35 lines
786 B
Rust
35 lines
786 B
Rust
|
//! Image loading and caching
|
||
|
|
|
||
|
|
use std::fmt::Debug;
|
||
|
|
|
||
|
|
#[cfg(feature = "image_rs")]
|
||
|
|
pub mod raster;
|
||
|
|
|
||
|
|
#[cfg(feature = "svg")]
|
||
|
|
pub mod vector;
|
||
|
|
|
||
|
|
/// Entry in the texture store
|
||
|
|
pub trait TextureStoreEntry: Debug {
|
||
|
|
/// Width and height of the entry
|
||
|
|
fn size(&self) -> (u32, u32);
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Stores cached image data for use in rendering
|
||
|
|
pub trait TextureStore {
|
||
|
|
/// Entry in the texture store
|
||
|
|
type Entry: TextureStoreEntry;
|
||
|
|
/// State passed to upload/remove
|
||
|
|
type State<'a>;
|
||
|
|
|
||
|
|
/// Upload image data
|
||
|
|
fn upload(
|
||
|
|
&mut self,
|
||
|
|
width: u32,
|
||
|
|
height: u32,
|
||
|
|
data: &[u8],
|
||
|
|
state: &mut Self::State<'_>,
|
||
|
|
) -> Option<Self::Entry>;
|
||
|
|
/// Remome image from store
|
||
|
|
fn remove(&mut self, entry: &Self::Entry, state: &mut Self::State<'_>);
|
||
|
|
}
|