Upgrade dependencies and use fast_image_resize

Cargo.toml

@@ -7,14 +7,15 @@ edition = "2021"
 anyhow = "1.0"
 log = "0.4"
 simplelog = "0.12"
-wry = "0.20"
+wry = "0.27"
 native-dialog = "0.6"
 rust-embed = "6"
-base64 = "0.13"
-directories = "4"
-clap = "3"
+base64 = "0.21"
+directories = "5"
+clap = "4"
 warp = "0.3"
 tokio = { version = "1", features = ["full"] }
 image = "0.24"
-rexiv2 = "0.9"
-tempfile = "3"
+rexiv2 = "0.10"
+tempfile = "3"
+fast_image_resize = "2"

src/main.rs

@@ -1,14 +1,15 @@
 #![windows_subsystem = "windows"]
 
 use anyhow::{anyhow, Result};
+use base64::Engine;
 use clap::{Arg, Command};
-use image::{imageops::FilterType, io::Reader as ImageReader};
+use image::{io::Reader as ImageReader, DynamicImage};
 use log::info;
 use native_dialog::{FileDialog, MessageDialog};
 use rexiv2::Metadata;
 use rust_embed::RustEmbed;
 use simplelog::{ColorChoice, ConfigBuilder, LevelFilter, TermLogger, TerminalMode};
-use std::{fs::File, io::BufWriter, path::PathBuf, thread::JoinHandle};
+use std::{fs::File, io::BufWriter, path::PathBuf, thread::JoinHandle, num::NonZeroU32};
 use tempfile::tempdir;
 use warp::Filter;
 use wry::{
@@ -19,6 +20,7 @@ use wry::{
     },
     webview::WebViewBuilder,
 };
+use fast_image_resize as fr;
 
 #[derive(RustEmbed)]
 #[folder = "embed/"]
@@ -39,15 +41,11 @@ fn main() -> Result<()> {
     let tmp_dir = tempdir()?;
 
     let cmd = Command::new("Simple panorama viewer")
-        .arg(
-            Arg::new("filename")
-                .allow_invalid_utf8(true)
-                .help("Image path"),
-        )
+        .arg(Arg::new("filename").value_parser(clap::value_parser!(PathBuf)).help("Image path"))
         .get_matches();
 
-    let img_path = if let Some(img_path) = cmd.value_of_os("filename") {
-        PathBuf::from(img_path)
+    let img_path = if let Some(img_path) = cmd.get_one::<PathBuf>("filename") {
+        img_path.clone()
     } else {
         let user_dirs = directories::UserDirs::new().unwrap();
         let dir = if let Some(img_dir) = user_dirs.picture_dir() {
@@ -72,7 +70,7 @@ fn main() -> Result<()> {
     const MAX_IMG_SIZE: u32 = 20_000_000;
     let img_data_path = if height * width > MAX_IMG_SIZE {
         // @todo Option pas de resize / taille en ligne de commande
-        // @todo Option pas de resize / taille dans une config
+        // @todo Option pas de resize / taille dans une config (confy)
         // @todo Icon
         let ratio = (height * width) as f64 / MAX_IMG_SIZE as f64;
         let new_height = (height as f64 / ratio.sqrt()) as u32;
@@ -80,13 +78,16 @@ fn main() -> Result<()> {
 
         if MessageDialog::new()
             .set_title("Resize")
-            .set_text(&format!("Resize the file to {} × {}", new_width, new_height))
+            .set_text(&format!(
+                "Resize the file to {} × {}",
+                new_width, new_height
+            ))
             .show_confirm()?
         {
             // Resize image
             let img = ImageReader::open(&img_path)?.decode()?;
             info!("Resize image to {} × {}", new_width, new_height);
-            let image_resized = img.resize(new_width, new_height, FilterType::Triangle);
+            let image_resized = fast_image_resize(&img, new_width, new_height)?;
 
             // Save file and add metadata
             let tmp_img_path = tmp_dir.path().join("img.jpg");
@@ -105,7 +106,7 @@ fn main() -> Result<()> {
     };
     let img_data = std::fs::read(&img_data_path)?;
     tmp_dir.close()?;
-    let img_base_64 = base64::encode(img_data);
+    let img_base_64 = base64::engine::general_purpose::STANDARD.encode(img_data);
 
     info!("Generate HTML");
     let html = std::str::from_utf8(Embed::get("index.html").unwrap().data.as_ref())?
@@ -150,3 +151,49 @@ fn run_server(html: String) -> JoinHandle<()> {
         async_runtime.block_on(warp::serve(hello).run(([127, 0, 0, 1], 62371)));
     })
 }
+
+/// Fast resize
+pub fn fast_image_resize(
+    img: &DynamicImage,
+    max_width: u32,
+    max_height: u32,
+) -> Result<DynamicImage> {
+    // Create source image
+    let width = NonZeroU32::new(img.width()).unwrap();
+    let height = NonZeroU32::new(img.height()).unwrap();
+    let src_image =
+        fr::Image::from_vec_u8(width, height, img.to_rgb8().into_raw(), fr::PixelType::U8x3)?;
+    let mut src_view = src_image.view();
+
+    // Create container for data of destination image
+    let (dst_width, dst_height) = if width > height {
+        (
+            NonZeroU32::new(max_width).unwrap(),
+            NonZeroU32::new((max_width * img.height()) / img.width()).unwrap(),
+        )
+    } else {
+        (
+            NonZeroU32::new((max_height * img.width()) / img.height()).unwrap(),
+            NonZeroU32::new(max_height).unwrap(),
+        )
+    };
+    src_view.set_crop_box_to_fit_dst_size(dst_width, dst_height, None);
+    let mut dst_image = fr::Image::new(dst_width, dst_height, src_view.pixel_type());
+
+    // Get mutable view of destination image data
+    let mut dst_view = dst_image.view_mut();
+
+    // Create Resizer instance and resize source image into buffer of destination image
+    let mut resizer = fr::Resizer::new(fr::ResizeAlg::Convolution(fr::FilterType::Lanczos3));
+    resizer.resize(&src_view, &mut dst_view)?;
+
+    // Create Dynamic image
+    let img_buffer = image::RgbImage::from_raw(
+        dst_image.width().get(),
+        dst_image.height().get(),
+        dst_image.into_vec(),
+    )
+    .unwrap();
+
+    Ok(img_buffer.into())
+}