Finish encode function for now

Cargo.toml

@@ -6,6 +6,7 @@ edition = "2024"
 [dependencies]
 gtk4 = "0.11.0"
 image = "0.25.10"
+tempfile = "3.27.0"
 
 [package.metadata.bundle]
 name = "VideoStore"

src/encode.rs

@@ -1,5 +1,53 @@
+use image::{ImageBuffer, Rgb};
 use std::path::PathBuf;
+use tempfile::TempDir;
 
-pub async fn encode(path: PathBuf) {
+pub fn encode(path: PathBuf) {
-    println!("{}", path.display());
+    let temp_dir = TempDir::new().unwrap();
+    let temp_path = temp_dir.path();
+    let size = 300;
+
+    let file_data = std::fs::read(&path).unwrap();
+
+    let mut frame_num = 0;
+    let mut byte_index = 0;
+    let mut bit_index = 0;
+
+    loop {
+        let mut img = ImageBuffer::<Rgb<u8>, Vec<u8>>::new(size, size);
+
+        for pixel_idx in 0..(size * size) {
+            let x = (pixel_idx % size) as u32;
+            let y = (pixel_idx / size) as u32;
+
+            if byte_index < file_data.len() {
+                let byte = file_data[byte_index];
+                let bit = (byte >> (7 - bit_index)) & 1;
+
+                let color = if bit == 0 {
+                    Rgb([255, 0, 0])
+                } else {
+                    Rgb([0, 255, 0])
+                };
+                img.put_pixel(x, y, color);
+
+                bit_index += 1;
+                if bit_index == 8 {
+                    bit_index = 0;
+                    byte_index += 1;
+                }
+            } else {
+                img.put_pixel(x, y, Rgb([0, 0, 255]));
+            }
+        }
+
+        let frame_path = temp_path.join(format!("frame_{}.png", frame_num));
+        img.save(&frame_path).unwrap();
+
+        frame_num += 1;
+
+        if byte_index >= file_data.len() {
+            break;
+        }
+    }
 }

src/main.rs

@@ -43,7 +43,7 @@ fn main() {
             move |_| {
                 get_user_selected_file(&window, |file_path| {
                     if let Some(path) = file_path {
-                        spawn_future_local(encode(path));
+                        encode(path);
                     }
                 });
             }