feat: make Flutgrid implement image

Cargo.toml

@@ -5,5 +5,6 @@ edition = "2021"
 
 [dependencies]
 axum = { version = "0.7.5" }
+image = "0.25.1"
 tokio = { version = "1.38", features = ["full"] }
 tokio-test = "*"

src/main.rs

@@ -3,12 +3,13 @@
 
 use std::{
     cell::SyncUnsafeCell,
-    io::{self, Error, ErrorKind},
+    io::{self, Cursor, Error, ErrorKind},
     iter::once,
     sync::Arc,
 };
 
 use axum::{http::StatusCode, routing::get, Router};
+use image::{GenericImage, GenericImageView, Rgba};
 use tokio::{
     io::{AsyncReadExt, AsyncWriteExt, BufReader, BufWriter},
     net::TcpListener,
@@ -52,6 +53,21 @@ impl<T> FlutGrid<T> {
     }
 }
 
+impl GenericImageView for FlutGrid<u32> {
+    type Pixel = Rgba<u8>;
+
+    fn dimensions(&self) -> (u32, u32) {
+        return (self.size_x as u32, self.size_y as u32);
+    }
+
+    fn get_pixel(&self, x: u32, y: u32) -> Self::Pixel {
+        match self.get(x as u16, y as u16) {
+            None => todo!("out of bounds for images not supported"),
+            Some(color) => return Rgba(color.to_be_bytes()),
+        }
+    }
+}
+
 impl<T> Grid<u16, T> for FlutGrid<T> {
     fn get(&self, x: u16, y: u16) -> Option<&T> {
         match self.index(x, y) {
@@ -266,6 +282,11 @@ async fn main() -> io::Result<()> {
     let web_listener = TcpListener::bind("0.0.0.0:7792").await?;
     println!("bound web listener");
 
+    let img_asuc = asuc.clone();
+    tokio::spawn(async move {
+        let img_grids = unsafe { img_asuc.get().as_ref().unwrap() };
+    });
+
     let app = Router::new().route("/", get(root));
     tokio::spawn(async move { axum::serve(web_listener, app).await });
     println!("web server started");