feat: add (non-animated) image support

Cargo.toml

@@ -51,4 +51,5 @@ serde_json = { version = "1.0.140", optional = true }
 time = "0.3.41"
 toml = { version = "0.9.0", optional = true }
 zerocopy = { version = "0.8.14", features = ["derive"] }
-u8g2-fonts = { version = "0.7.1", features = ["embedded_graphics_textstyle"], optional = true }
+u8g2-fonts = { version = "0.7.1", features = ["embedded_graphics_textstyle"], optional = true }
+image = "0.25.6"

src/main.rs

@@ -17,6 +17,7 @@ use embedded_graphics::{
     text::Text,
     Drawable, Pixel,
 };
+use image::{imageops::FilterType, ImageReader};
 use serde::Deserialize;
 use std::{fs, path::PathBuf};
 #[cfg(feature = "u8g2-fonts")]
@@ -97,6 +98,7 @@ enum Content {
     Bitstring { bitstring: String },
     BitmapBase64 { width: u32, bitmap_base64: String },
     BitmapFile { width: u32, bitmap_file: PathBuf },
+    ImageFile { img_file: PathBuf },
 }
 
 fn main() -> Result<()> {
@@ -233,6 +235,23 @@ fn generate_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)?;
+                        }
+                    }
+                }
+            }
         }
     }