Add support for image and GIF rendering

Cargo.toml

@@ -50,3 +50,4 @@ serde_json = { version = "1.0.140", optional = true }
 time = "0.3.41"
 toml = { version = "0.9.2", optional = true }
 zerocopy = { version = "0.8.26", features = ["derive"] }
+image = "0.25.6"

src/main.rs

@@ -1,14 +1,9 @@
 #![warn(clippy::all, clippy::pedantic)]
 #![allow(clippy::unnecessary_debug_formatting)]
 
-use std::{fs, path::PathBuf};
+use std::{fs, fs::File, io::BufReader, path::PathBuf};
 
 use anyhow::{Context, Result};
-use badgemagic::{
-    ble::Device as BleDevice,
-    protocol::{Mode, PayloadBuffer, Speed, Style},
-    usb_hid::Device as UsbDevice,
-};
 use base64::Engine;
 use clap::{Parser, ValueEnum};
 use embedded_graphics::{
@@ -20,6 +15,15 @@ use embedded_graphics::{
     Drawable, Pixel,
 };
 use serde::Deserialize;
+use image::{
+    codecs::gif::GifDecoder, imageops::FilterType, AnimationDecoder, ImageReader, Pixel as iPixel,
+};
+
+use badgemagic::{
+    ble::Device as BleDevice,
+    protocol::{Mode, PayloadBuffer, Speed, Style},
+    usb_hid::Device as UsbDevice,
+};
 
 #[derive(Parser)]
 /// Upload a configuration with up to 8 messages to an LED badge
@@ -92,8 +96,8 @@ enum Content {
     Bitstring { bitstring: String },
     BitmapBase64 { width: u32, bitmap_base64: String },
     BitmapFile { width: u32, bitmap_file: PathBuf },
-    // TODO: implement png
-    // PngFile { png_file: PathBuf },
+    ImageFile { img_file: PathBuf },
+    GifFile { gif_file: PathBuf },
 }
 
 fn main() -> Result<()> {
@@ -103,7 +107,7 @@ fn main() -> Result<()> {
         return list_devices(&args.transport);
     }
 
-    let payload = gnerate_payload(&mut args)?;
+    let payload = generate_payload(&mut args)?;
 
     write_payload(&args.transport, payload)
 }
@@ -129,7 +133,7 @@ fn list_devices(transport: &TransportProtocol) -> Result<()> {
     Ok(())
 }
 
-fn gnerate_payload(args: &mut Args) -> Result<PayloadBuffer> {
+fn generate_payload(args: &mut Args) -> Result<PayloadBuffer> {
     let config_path = args.config.take().unwrap_or_default();
     let config = fs::read_to_string(&config_path)
         .with_context(|| format!("load config: {config_path:?}"))?;
@@ -224,6 +228,53 @@ fn gnerate_payload(args: &mut Args) -> Result<PayloadBuffer> {
                 let image = Image::new(&image_raw, Point::zero());
                 payload.add_message_drawable(style, &image);
             }
+            Content::ImageFile { img_file } => {
+                let img_reader = ImageReader::open(img_file)?;
+                let img = img_reader
+                    .decode()?
+                    .resize(u32::MAX, 11, FilterType::Nearest)
+                    .into_luma8();
+                let (width, height) = img.dimensions();
+                let mut buffer = payload.add_message(style, (width as usize + 7) / 8);
+                for y in 0..height {
+                    for x in 0..width {
+                        if img.get_pixel(x, y).0 > [31] {
+                            Pixel(Point::new(x.try_into()?, y.try_into()?), BinaryColor::On)
+                                .draw(&mut buffer)?;
+                        }
+                    }
+                }
+            }
+            Content::GifFile { gif_file } => {
+                let file_in = BufReader::new(File::open(gif_file)?);
+                let frames = GifDecoder::new(file_in)?
+                    .into_frames()
+                    .collect_frames()
+                    .expect("error decoding gif");
+
+                let frame_count = frames.len();
+                let (width, height) = frames.first().unwrap().buffer().dimensions();
+                if height != 11 || width != 44 {
+                    anyhow::bail!("Expected 44x11 pixel gif file");
+                }
+
+                let mut buffer = payload.add_message(style, (48 * frame_count + 7) / 8);
+
+                for (i, frame) in frames.iter().enumerate() {
+                    let buf = frame.buffer();
+                    for y in 0..11 {
+                        for x in 0..44 {
+                            if buf.get_pixel(x, y).to_luma().0 > [31] {
+                                Pixel(
+                                    Point::new((x as usize + i * 48).try_into()?, y.try_into()?),
+                                    BinaryColor::On,
+                                )
+                                .draw(&mut buffer)?;
+                            }
+                        }
+                    }
+                }
+            }
         }
     }