Bump version to 0.4.17, update README.md

Stores use "Ordering::Release", loads use "Ordering::Acquire", and swaps
use "Ordering::AcqRel".

Cargo.toml

@@ -1,21 +1,23 @@
 [package]
 name = "mpd_info_screen"
-version = "0.3.7"
+version = "0.4.17"
-edition = "2018"
+edition = "2021"
 description = "Displays info on currently playing music from an MPD daemon"
 license = "MIT"
 repository = "https://github.com/Stephen-Seo/mpd_info_screen"
+resolver = "2"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-structopt = "0.3"
+clap = { version = "4.5", features = ["derive"] }
-image = "0.24"
+image = "0.25"
-ggez = "0.7"
+ggez = "0.9.3"
 freetype = { version = "0.7", optional = true }
+wgpu-types = "0.16"
 
 [build-dependencies]
-bindgen = { version = "0.53", optional = true }
+bindgen = { version = "0.69", optional = true }
 
 [features]
 unicode_support = ["dep:freetype", "dep:bindgen"]

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2021-2022 Stephen Seo
+Copyright (c) 2021-2024 Stephen Seo
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -12,6 +12,11 @@ A Rust program that displays info about the currently running MPD server.
 The window shows albumart (may be embedded in the audio file, or is a "cover.jpg" in the same directory as the song file), a "time-remaining"
 counter, and the filename currently being played
 
+## Known Bugs ❗❗
+
+Currently there are no known bugs. Please report any bugs you find to the
+[issue tracker](https://github.com/Stephen-Seo/mpd_info_screen/issues).
+
 ## Unicode Support
 
 By default, unicode characters will not display properly. Build the project with
@@ -23,32 +28,50 @@ installed already).
 
     cargo build --release --features unicode_support
 
+or through crates.io:
+
+    cargo install --features unicode_support mpd_info_screen
+
 # Usage
 
 
-    mpd_info_screen 0.3.7
+    Displays info on currently playing music from an MPD daemon
     
-    USAGE:
+    Usage: mpd_info_screen [OPTIONS] <HOST> [PORT]
-        mpd_info_screen [FLAGS] [OPTIONS] <host> [port]
     
-    FLAGS:
+    Arguments:
-            --disable-show-album       disable album display
+      <HOST>
-            --disable-show-artist      disable artist display
+      [PORT]  [default: 6600]
-            --disable-show-filename    disable filename display
-            --disable-show-title       disable title display
-            --no-scale-fill            don't scale-fill the album art to the window
-            --pprompt                  input password via prompt
-        -h, --help                     Prints help information
-        -V, --version                  Prints version information
     
-    OPTIONS:
+    Options:
-        -l, --log-level <log-level>                 [default: Error]  [possible values: Error, Warning, Debug, Verbose]
+      -p <PASSWORD>
-        -p <password>
-        -t, --text-bg-opacity <text-bg-opacity>    sets the opacity of the text background (0-255) [default: 190]
     
-    ARGS:
+          --disable-show-title
-        <host>
+              disable title display
-        <port>     [default: 6600]
+          --disable-show-artist
+              disable artist display
+          --disable-show-album
+              disable album display
+          --disable-show-filename
+              disable filename display
+          --disable-show-percentage
+              disable percentage display
+          --force-text-height-scale <FORCE_TEXT_HEIGHT_SCALE>
+              force-set text height relative to window height as a ratio (default 0.12)
+          --pprompt
+              input password via prompt
+          --pfile <PASSWORD_FILE>
+              read password from file
+          --no-scale-fill
+              don't scale-fill the album art to the window
+      -l, --log-level <LOG_LEVEL>
+              [default: error] [possible values: error, warning, debug, verbose]
+      -t, --text-bg-opacity <TEXT_BG_OPACITY>
+              sets the opacity of the text background (0-255) [default: 190]
+      -h, --help
+              Print help
+      -V, --version
+              Print version
 
 
 Note that presing the Escape key when the window is focused closes the program.
@@ -77,8 +100,8 @@ MIT license.
 Uses dependency [image](https://crates.io/crates/image) which is licensed under
 MIT license.
 
-Uses dependency [structopt](https://crates.io/crates/structopt) which is
+Uses dependency [clap](https://crates.io/crates/clap) which is licensed under
-licensed under Apache-2.0 or MIT licenses.
+Apache-2.0 or MIT licenses.
 
 ## Unicode Support Dependencies
 

build.rs

@@ -14,7 +14,7 @@ fn main() {
 
     let bindings = bindgen::Builder::default()
         .header("src/bindgen_wrapper.h")
-        .parse_callbacks(Box::new(bindgen::CargoCallbacks))
+        .parse_callbacks(Box::new(bindgen::CargoCallbacks::new()))
         .generate()
         .expect("Unable to generate bindings");
 

src/debug_log.rs

@@ -1,7 +1,7 @@
+use clap::ValueEnum;
 use std::fmt::Display;
-use structopt::clap::arg_enum;
 
-#[derive(Copy, Clone, Debug, PartialEq)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub enum LogState {
     Error,
     Warning,
@@ -9,15 +9,13 @@ pub enum LogState {
     Verbose,
 }
 
-arg_enum! {
+#[derive(ValueEnum, Copy, Clone, Debug, PartialEq, Eq)]
-    #[derive(Copy, Clone, Debug, PartialEq)]
 pub enum LogLevel {
     Error,
     Warning,
     Debug,
     Verbose,
 }
-}
 
 pub fn log<T>(msg: T, state: LogState, level: LogLevel)
 where
@@ -46,26 +44,26 @@ pub fn log_error<T>(msg: T)
 where
     T: Display,
 {
-    println!("Error: {}", msg);
+    println!("Error: {msg}");
 }
 
 pub fn log_warning<T>(msg: T)
 where
     T: Display,
 {
-    println!("Warning: {}", msg);
+    println!("Warning: {msg}");
 }
 
 pub fn log_debug<T>(msg: T)
 where
     T: Display,
 {
-    println!("Debug: {}", msg);
+    println!("Debug: {msg}");
 }
 
 pub fn log_verbose<T>(msg: T)
 where
     T: Display,
 {
-    println!("Verbose: {}", msg);
+    println!("Verbose: {msg}");
 }

src/display.rs

@@ -1,13 +1,16 @@
 use crate::debug_log::{self, log};
 use crate::mpd_handler::{InfoFromShared, MPDHandler, MPDHandlerState, MPDPlayState};
 use crate::Opt;
-use ggez::event::{self, EventHandler};
+use ggez::event::EventHandler;
 use ggez::graphics::{
-    self, Color, DrawMode, DrawParam, Drawable, Font, Image, Mesh, MeshBuilder, PxScale, Rect,
+    self, Color, DrawMode, DrawParam, Drawable, Image, Mesh, MeshBuilder, PxScale, Rect, Text,
-    Text, TextFragment, Transform,
+    TextFragment, Transform,
 };
-use ggez::{timer, Context, GameError, GameResult};
+use ggez::input::keyboard::{self, KeyInput};
-use image::io::Reader as ImageReader;
+use ggez::mint::Vector2;
+use ggez::{Context, GameError, GameResult};
+use image::DynamicImage;
+use image::ImageReader;
 use std::io::Cursor;
 use std::path::PathBuf;
 use std::sync::atomic::AtomicBool;
@@ -16,14 +19,16 @@ use std::thread;
 use std::time::{Duration, Instant};
 
 const POLL_TIME: Duration = Duration::from_millis(333);
-const INIT_FONT_SIZE_X: f32 = 24.0;
+const INIT_FONT_SIZE_RATIO: f32 = 1.4167;
-const INIT_FONT_SIZE_Y: f32 = 34.0;
+const INIT_FONT_SIZE_X: f32 = 36.0;
+const INIT_FONT_SIZE_Y: f32 = INIT_FONT_SIZE_X * INIT_FONT_SIZE_RATIO;
 const TEXT_X_OFFSET: f32 = 0.3;
 const TEXT_OFFSET_Y_SPACING: f32 = 0.4;
-const TEXT_HEIGHT_SCALE: f32 = 0.1;
+const TEXT_HEIGHT_SCALE: f32 = 0.12;
-const ARTIST_HEIGHT_SCALE: f32 = 0.08;
+const ARTIST_HEIGHT_SCALE: f32 = 0.12;
-const ALBUM_HEIGHT_SCALE: f32 = 0.08;
+const ALBUM_HEIGHT_SCALE: f32 = 0.12;
-const TIMER_HEIGHT_SCALE: f32 = 0.07;
+const TIMER_HEIGHT_SCALE_RATIO: f32 = 0.875;
+const TIMER_HEIGHT_SCALE: f32 = TEXT_HEIGHT_SCALE * TIMER_HEIGHT_SCALE_RATIO;
 const MIN_WIDTH_RATIO: f32 = 4.0 / 5.0;
 const INCREASE_AMT: f32 = 6.0 / 5.0;
 const DECREASE_AMT: f32 = 5.0 / 6.0;
@@ -51,11 +56,15 @@ fn seconds_to_time(seconds: f64) -> String {
     result
 }
 
+fn time_to_percentage(total: f64, current: f64) -> String {
+    ((100.0f64 * current / total).round() as i32).to_string() + "%"
+}
+
 #[cfg(not(feature = "unicode_support"))]
 #[allow(clippy::ptr_arg)]
 fn string_to_text(
     string: String,
-    _loaded_fonts: &mut Vec<(PathBuf, Font)>,
+    _loaded_fonts: &mut Vec<(PathBuf, String)>,
     _ctx: &mut Context,
 ) -> Text {
     Text::new(TextFragment::from(string))
@@ -64,7 +73,7 @@ fn string_to_text(
 #[cfg(feature = "unicode_support")]
 fn string_to_text(
     string: String,
-    loaded_fonts: &mut Vec<(PathBuf, Font)>,
+    loaded_fonts: &mut Vec<(PathBuf, String)>,
     ctx: &mut Context,
 ) -> Text {
     use super::unicode_support;
@@ -79,7 +88,7 @@ fn string_to_text(
     }
 
     let find_font =
-        |c: char, loaded_fonts: &mut Vec<(PathBuf, Font)>, ctx: &mut Context| -> Option<usize> {
+        |c: char, loaded_fonts: &mut Vec<(PathBuf, String)>, ctx: &mut Context| -> Option<usize> {
             for (idx, (path, _)) in loaded_fonts.iter().enumerate() {
                 let result = unicode_support::font_has_char(c, path);
                 if result.is_ok() && result.unwrap() {
@@ -89,9 +98,16 @@ fn string_to_text(
 
             let find_result = unicode_support::get_matching_font_from_char(c);
             if let Ok(path) = find_result {
-                let new_font = Font::new(ctx, &path);
+                let new_font = ggez::graphics::FontData::from_path(ctx, &path);
                 if let Ok(font) = new_font {
-                    loaded_fonts.push((path, font));
+                    let font_name: String = path
+                        .file_name()
+                        .expect("Should be valid filename at end of Font path.")
+                        .to_str()
+                        .expect("Font filename should be valid unicode.")
+                        .to_owned();
+                    ctx.gfx.add_font(&font_name, font);
+                    loaded_fonts.push((path, font_name));
                     return Some(loaded_fonts.len() - 1);
                 } else {
                     log(
@@ -102,7 +118,7 @@ fn string_to_text(
                 }
             } else {
                 log(
-                    format!("Failed to find font for {}", c),
+                    format!("Failed to find font for {c}"),
                     debug_log::LogState::Error,
                     debug_log::LogLevel::Error,
                 );
@@ -132,13 +148,13 @@ fn string_to_text(
                         text.add(current_fragment);
                         current_fragment = Default::default();
                     }
-                    let (_, font) = loaded_fonts[idx];
+                    let (_, font) = &loaded_fonts[idx];
-                    current_fragment.font = Some(font);
+                    current_fragment.font = Some(font.clone());
                 }
                 current_fragment.text.push(c);
             } else if let Some(idx) = idx_opt {
-                let font = loaded_fonts[idx].1;
+                let font = &loaded_fonts[idx].1;
-                if let Some(current_font) = current_fragment.font {
+                if let Some(current_font) = current_fragment.font.as_ref() {
                     if current_font == font {
                         current_fragment.text.push(c);
                     } else {
@@ -147,17 +163,17 @@ fn string_to_text(
                             current_fragment = Default::default();
                         }
                         current_fragment.text.push(c);
-                        current_fragment.font = Some(font);
+                        current_fragment.font = Some(font.clone());
                     }
                 } else if current_fragment.text.is_empty() {
                     current_fragment.text.push(c);
-                    current_fragment.font = Some(font);
+                    current_fragment.font = Some(font.clone());
                 } else {
                     text.add(current_fragment);
                     current_fragment = Default::default();
 
                     current_fragment.text.push(c);
-                    current_fragment.font = Some(font);
+                    current_fragment.font = Some(font.clone());
                 }
             } else {
                 if !current_fragment.text.is_empty() && current_fragment.font.is_some() {
@@ -203,16 +219,23 @@ pub struct MPDDisplay {
     album_string_cache: String,
     album_transform: Transform,
     timer_text: Text,
+    timer_text_len: usize,
     timer_transform: Transform,
     timer_x: f32,
     timer_y: f32,
     timer: f64,
     length: f64,
+    cached_filename_y: f32,
+    cached_album_y: f32,
+    cached_artist_y: f32,
+    cached_title_y: f32,
+    cached_timer_y: f32,
     text_bg_mesh: Option<Mesh>,
     hide_text: bool,
     tried_album_art_in_dir: bool,
+    prev_mpd_play_state: MPDPlayState,
     mpd_play_state: MPDPlayState,
-    loaded_fonts: Vec<(PathBuf, Font)>,
+    loaded_fonts: Vec<(PathBuf, String)>,
 }
 
 impl MPDDisplay {
@@ -224,7 +247,7 @@ impl MPDDisplay {
             is_initialized: false,
             is_authenticated: false,
             notice_text: Text::default(),
-            poll_instant: Instant::now() - POLL_TIME,
+            poll_instant: Instant::now().checked_sub(POLL_TIME).unwrap(),
             shared: None,
             password_entered: false,
             dirty_flag: None,
@@ -237,14 +260,21 @@ impl MPDDisplay {
             title_text: Text::default(),
             title_transform: Transform::default(),
             timer_text: Text::new("0"),
+            timer_text_len: 0,
             timer_transform: Transform::default(),
             timer_x: INIT_FONT_SIZE_X,
             timer_y: INIT_FONT_SIZE_Y,
             timer: 0.0,
             length: 0.0,
+            cached_filename_y: 0.0f32,
+            cached_album_y: 0.0f32,
+            cached_artist_y: 0.0f32,
+            cached_title_y: 0.0f32,
+            cached_timer_y: 0.0f32,
             text_bg_mesh: None,
             hide_text: false,
             tried_album_art_in_dir: false,
+            prev_mpd_play_state: MPDPlayState::Playing,
             mpd_play_state: MPDPlayState::Playing,
             loaded_fonts: Vec::new(),
             filename_string_cache: String::new(),
@@ -291,24 +321,24 @@ impl MPDDisplay {
     fn get_album_art_transform(&mut self, ctx: &mut Context, fill_scaled: bool) {
         if fill_scaled {
             if let Some(image) = &self.album_art {
-                let screen_coords: Rect = graphics::screen_coordinates(ctx);
+                let drawable_size = ctx.gfx.drawable_size();
-                let art_rect: Rect = image.dimensions();
+                let art_rect: Rect = image.dimensions(ctx).expect("Image should have dimensions");
 
                 // try to fit to width first
-                let mut x_scale = screen_coords.w / art_rect.w;
+                let mut x_scale = drawable_size.0 / art_rect.w;
                 let mut y_scale = x_scale;
                 let mut new_width = art_rect.w * x_scale;
                 let mut new_height = art_rect.h * y_scale;
-                if new_height > screen_coords.h.abs() {
+                if new_height > drawable_size.1.abs() {
                     // fit to height instead
-                    y_scale = screen_coords.h.abs() / art_rect.h;
+                    y_scale = drawable_size.1.abs() / art_rect.h;
                     x_scale = y_scale;
                     new_width = art_rect.w * x_scale;
                     new_height = art_rect.h * y_scale;
                 }
 
-                let offset_x: f32 = (screen_coords.w.abs() - new_width) / 2.0f32;
+                let offset_x: f32 = (drawable_size.0.abs() - new_width) / 2.0f32;
-                let offset_y: f32 = (screen_coords.h.abs() - new_height) / 2.0f32;
+                let offset_y: f32 = (drawable_size.1.abs() - new_height) / 2.0f32;
 
                 self.album_art_draw_transform = Some(Transform::Values {
                     dest: [offset_x, offset_y].into(),
@@ -320,10 +350,10 @@ impl MPDDisplay {
                 self.album_art_draw_transform = None;
             }
         } else if let Some(image) = &self.album_art {
-            let screen_coords: Rect = graphics::screen_coordinates(ctx);
+            let drawable_size = ctx.gfx.drawable_size();
-            let art_rect: Rect = image.dimensions();
+            let art_rect: Rect = image.dimensions(ctx).expect("Image should have dimensions");
-            let offset_x: f32 = (screen_coords.w.abs() - art_rect.w.abs()) / 2.0f32;
+            let offset_x: f32 = (drawable_size.0.abs() - art_rect.w.abs()) / 2.0f32;
-            let offset_y: f32 = (screen_coords.h.abs() - art_rect.h.abs()) / 2.0f32;
+            let offset_y: f32 = (drawable_size.1.abs() - art_rect.h.abs()) / 2.0f32;
             self.album_art_draw_transform = Some(Transform::Values {
                 dest: [offset_x, offset_y].into(),
                 rotation: 0.0f32,
@@ -398,20 +428,23 @@ impl MPDDisplay {
         }
 
         let img_result = if is_unknown_format {
-            let mut reader = ImageReader::new(Cursor::new(&image_ref));
+            let reader = ImageReader::new(Cursor::new(image_ref));
-            reader = reader
+            let guessed_reader = reader
                 .with_guessed_format()
-                .map_err(|e| format!("Error: Failed to guess format of album art image: {}", e))?;
+                .map_err(|e| format!("Error: Failed to guess format of album art image: {e}"));
+            if let Ok(reader) = guessed_reader {
                 reader.decode().map_err(|e| {
-                format!(
+                    format!("Error: Failed to decode album art image (guessed format): {e}")
-                    "Error: Failed to decode album art image (guessed format): {}",
-                    e
-                )
                 })
             } else {
-            ImageReader::with_format(Cursor::new(&image_ref), image_format)
+                // Convert Ok(_) to Ok(DynamicImage) which will never be used
+                // since the if statement covers it.
+                guessed_reader.map(|_| -> DynamicImage { unreachable!() })
+            }
+        } else {
+            ImageReader::with_format(Cursor::new(image_ref), image_format)
                 .decode()
-                .map_err(|e| format!("Error: Failed to decode album art image: {}", e))
+                .map_err(|e| format!("Error: Failed to decode album art image: {e}"))
         };
         if img_result.is_err() && !self.tried_album_art_in_dir {
             return try_second_art_fetch_method(
@@ -423,13 +456,13 @@ impl MPDDisplay {
         }
         let img = img_result?;
         let rgba8 = img.to_rgba8();
-        let ggez_img = Image::from_rgba8(
+        let ggez_img = Image::from_pixels(
             ctx,
-            rgba8.width() as u16,
-            rgba8.height() as u16,
             rgba8.as_raw(),
-        )
+            wgpu_types::TextureFormat::Rgba8UnormSrgb,
-        .map_err(|e| format!("Error: Failed to load album art image in ggez Image: {}", e))?;
+            rgba8.width(),
+            rgba8.height(),
+        );
 
         self.album_art = Some(ggez_img);
 
@@ -437,20 +470,31 @@ impl MPDDisplay {
     }
 
     fn refresh_text_transforms(&mut self, ctx: &mut Context) -> GameResult<()> {
-        let screen_coords: Rect = graphics::screen_coordinates(ctx);
+        let drawable_size = ctx.gfx.drawable_size();
 
-        let text_height_limit = TEXT_HEIGHT_SCALE * screen_coords.h.abs();
+        let text_height_scale: f32;
-        let album_height_limit = ALBUM_HEIGHT_SCALE * screen_coords.h.abs();
+        let album_height_scale: f32;
-        let artist_height_limit = ARTIST_HEIGHT_SCALE * screen_coords.h.abs();
+        let artist_height_scale: f32;
-        let timer_height = TIMER_HEIGHT_SCALE * screen_coords.h.abs();
+        let timer_height_scale: f32;
 
-        let mut offset_y: f32 = screen_coords.h;
+        if let Some(forced_scale) = &self.opts.force_text_height_scale {
+            text_height_scale = *forced_scale;
+            album_height_scale = *forced_scale;
+            artist_height_scale = *forced_scale;
+            timer_height_scale = *forced_scale * TIMER_HEIGHT_SCALE_RATIO;
+        } else {
+            text_height_scale = TEXT_HEIGHT_SCALE;
+            album_height_scale = ALBUM_HEIGHT_SCALE;
+            artist_height_scale = ARTIST_HEIGHT_SCALE;
+            timer_height_scale = TIMER_HEIGHT_SCALE;
+        }
 
-        let mut filename_y: f32 = 0.0;
+        let text_height_limit = text_height_scale * drawable_size.1.abs();
-        let mut album_y: f32 = 0.0;
+        let album_height_limit = album_height_scale * drawable_size.1.abs();
-        let mut artist_y: f32 = 0.0;
+        let artist_height_limit = artist_height_scale * drawable_size.1.abs();
-        let mut title_y: f32 = 0.0;
+        let timer_height = timer_height_scale * drawable_size.1.abs();
-        let mut timer_y: f32 = 0.0;
+
+        let mut offset_y: f32 = drawable_size.1;
 
         let set_transform = |text: &mut Text,
                              transform: &mut Transform,
@@ -463,8 +507,7 @@ impl MPDDisplay {
                              timer_y: &mut f32| {
             let mut current_x = INIT_FONT_SIZE_X;
             let mut current_y = INIT_FONT_SIZE_Y;
-            let mut width: f32;
+            let mut width_height: Vector2<f32> = Vector2 { x: 0.0, y: 0.0 };
-            let mut height: f32 = 0.0;
             let mut iteration_count: u8 = 0;
             loop {
                 iteration_count += 1;
@@ -478,12 +521,13 @@ impl MPDDisplay {
                         y: current_y,
                     });
                 }
-                width = text.width(ctx);
+                width_height = text
-                height = text.height(ctx);
+                    .measure(ctx)
+                    .expect("Should be able to get width/height of text.");
 
                 if is_string {
-                    if screen_coords.w < width
+                    if drawable_size.0 < width_height.x
-                        || height
+                        || width_height.y
                             >= (if is_artist {
                                 artist_height_limit
                             } else if is_album {
@@ -495,7 +539,7 @@ impl MPDDisplay {
                         current_x *= DECREASE_AMT;
                         current_y *= DECREASE_AMT;
                         continue;
-                    } else if screen_coords.w * MIN_WIDTH_RATIO > width {
+                    } else if drawable_size.0 * MIN_WIDTH_RATIO > width_height.x {
                         current_x *= INCREASE_AMT;
                         current_y *= INCREASE_AMT;
                         continue;
@@ -503,7 +547,7 @@ impl MPDDisplay {
                         break;
                     }
                 } else {
-                    let diff_scale_y = current_y / height * timer_height;
+                    let diff_scale_y = current_y / width_height.y * timer_height;
                     let current_x = current_x * diff_scale_y / current_y;
                     for fragment in text.fragments_mut() {
                         fragment.scale = Some(PxScale {
@@ -514,20 +558,23 @@ impl MPDDisplay {
                     *timer_x = current_x;
                     *timer_y = diff_scale_y;
                     // width = text.width(ctx); // not really used after this
-                    height = text.height(ctx);
+                    width_height.y = text
+                        .measure(ctx)
+                        .expect("Should be able to get width/height of text.")
+                        .y;
                     break;
                 }
             }
 
-            *y = *offset_y - height;
+            *y = *offset_y - width_height.y;
             *transform = Transform::Values {
-                dest: [TEXT_X_OFFSET, *offset_y - height].into(),
+                dest: [TEXT_X_OFFSET, *offset_y - width_height.y].into(),
                 rotation: 0.0,
                 scale: [1.0, 1.0].into(),
                 offset: [0.0, 0.0].into(),
             };
 
-            *offset_y -= height + TEXT_OFFSET_Y_SPACING;
+            *offset_y -= width_height.y + TEXT_OFFSET_Y_SPACING;
         };
 
         if !self.filename_text.contents().is_empty() && !self.opts.disable_show_filename {
@@ -535,7 +582,7 @@ impl MPDDisplay {
                 &mut self.filename_text,
                 &mut self.filename_transform,
                 &mut offset_y,
-                &mut filename_y,
+                &mut self.cached_filename_y,
                 true,
                 false,
                 false,
@@ -555,7 +602,7 @@ impl MPDDisplay {
                 &mut self.album_text,
                 &mut self.album_transform,
                 &mut offset_y,
-                &mut album_y,
+                &mut self.cached_album_y,
                 true,
                 false,
                 true,
@@ -569,7 +616,7 @@ impl MPDDisplay {
                 &mut self.artist_text,
                 &mut self.artist_transform,
                 &mut offset_y,
-                &mut artist_y,
+                &mut self.cached_artist_y,
                 true,
                 true,
                 false,
@@ -589,7 +636,7 @@ impl MPDDisplay {
                 &mut self.title_text,
                 &mut self.title_transform,
                 &mut offset_y,
-                &mut title_y,
+                &mut self.cached_title_y,
                 true,
                 false,
                 false,
@@ -608,7 +655,7 @@ impl MPDDisplay {
             &mut self.timer_text,
             &mut self.timer_transform,
             &mut offset_y,
-            &mut timer_y,
+            &mut self.cached_timer_y,
             false,
             false,
             false,
@@ -616,11 +663,32 @@ impl MPDDisplay {
             &mut self.timer_y,
         );
 
-        let filename_dimensions = self.filename_text.dimensions(ctx);
+        self.update_bg_mesh(ctx)?;
-        let album_dimensions = self.album_text.dimensions(ctx);
+
-        let artist_dimensions = self.artist_text.dimensions(ctx);
+        Ok(())
-        let title_dimensions = self.title_text.dimensions(ctx);
+    }
-        let timer_dimensions = self.timer_text.dimensions(ctx);
+
+    fn update_bg_mesh(&mut self, ctx: &mut Context) -> GameResult<()> {
+        let filename_dimensions = self
+            .filename_text
+            .dimensions(ctx)
+            .expect("Should be able to get dimensions of Text.");
+        let album_dimensions = self
+            .album_text
+            .dimensions(ctx)
+            .expect("Should be able to get dimensions of Text.");
+        let artist_dimensions = self
+            .artist_text
+            .dimensions(ctx)
+            .expect("Should be able to get dimensions of Text.");
+        let title_dimensions = self
+            .title_text
+            .dimensions(ctx)
+            .expect("Should be able to get dimensions of Text.");
+        let timer_dimensions = self
+            .timer_text
+            .dimensions(ctx)
+            .expect("Should be able to get dimensions of Text.");
 
         let mut mesh_builder: MeshBuilder = MeshBuilder::new();
         if !self.opts.disable_show_filename {
@@ -628,7 +696,7 @@ impl MPDDisplay {
                 DrawMode::fill(),
                 Rect {
                     x: TEXT_X_OFFSET,
-                    y: filename_y,
+                    y: self.cached_filename_y,
                     w: filename_dimensions.w,
                     h: filename_dimensions.h,
                 },
@@ -640,7 +708,7 @@ impl MPDDisplay {
                 DrawMode::fill(),
                 Rect {
                     x: TEXT_X_OFFSET,
-                    y: album_y,
+                    y: self.cached_album_y,
                     w: album_dimensions.w,
                     h: album_dimensions.h,
                 },
@@ -652,7 +720,7 @@ impl MPDDisplay {
                 DrawMode::fill(),
                 Rect {
                     x: TEXT_X_OFFSET,
-                    y: artist_y,
+                    y: self.cached_artist_y,
                     w: artist_dimensions.w,
                     h: artist_dimensions.h,
                 },
@@ -664,25 +732,26 @@ impl MPDDisplay {
                 DrawMode::fill(),
                 Rect {
                     x: TEXT_X_OFFSET,
-                    y: title_y,
+                    y: self.cached_title_y,
                     w: title_dimensions.w,
                     h: title_dimensions.h,
                 },
                 Color::from_rgba(0, 0, 0, self.opts.text_bg_opacity),
             )?;
         }
-        let mesh: Mesh = mesh_builder
+        if self.mpd_play_state == MPDPlayState::Playing {
-            .rectangle(
+            mesh_builder.rectangle(
                 DrawMode::fill(),
                 Rect {
                     x: TEXT_X_OFFSET,
-                    y: timer_y,
+                    y: self.cached_timer_y,
                     w: timer_dimensions.w,
                     h: timer_dimensions.h,
                 },
                 Color::from_rgba(0, 0, 0, self.opts.text_bg_opacity),
-            )?
+            )?;
-            .build(ctx)?;
+        }
+        let mesh: Mesh = Mesh::from_data(ctx, mesh_builder.build());
 
         self.text_bg_mesh = Some(mesh);
 
@@ -695,8 +764,7 @@ impl EventHandler for MPDDisplay {
         if !self.is_valid {
             if let Err(mpd_handler_error) = &self.mpd_handler {
                 return Err(GameError::EventLoopError(format!(
-                    "Failed to initialize MPDHandler: {}",
+                    "Failed to initialize MPDHandler: {mpd_handler_error}"
-                    mpd_handler_error
                 )));
             } else {
                 return Err(GameError::EventLoopError(
@@ -752,6 +820,8 @@ impl EventHandler for MPDDisplay {
             }
         }
 
+        self.prev_mpd_play_state = self.mpd_play_state;
+
         if self.is_valid && self.is_initialized && self.poll_instant.elapsed() > POLL_TIME {
             self.poll_instant = Instant::now();
             if self.dirty_flag.is_some()
@@ -759,7 +829,7 @@ impl EventHandler for MPDDisplay {
                     .dirty_flag
                     .as_ref()
                     .unwrap()
-                    .swap(false, Ordering::Relaxed)
+                    .swap(false, Ordering::AcqRel)
             {
                 log(
                     "dirty_flag cleared, acquiring shared data...",
@@ -807,7 +877,7 @@ impl EventHandler for MPDDisplay {
                             self.dirty_flag
                                 .as_ref()
                                 .unwrap()
-                                .store(true, Ordering::Relaxed);
+                                .store(true, Ordering::Release);
                         }
                         if !shared.artist.is_empty() {
                             if shared.artist != self.artist_string_cache {
@@ -822,7 +892,7 @@ impl EventHandler for MPDDisplay {
                             self.dirty_flag
                                 .as_ref()
                                 .unwrap()
-                                .store(true, Ordering::Relaxed);
+                                .store(true, Ordering::Release);
                         }
                         if !shared.album.is_empty() {
                             if shared.album != self.album_string_cache {
@@ -837,7 +907,7 @@ impl EventHandler for MPDDisplay {
                             self.dirty_flag
                                 .as_ref()
                                 .unwrap()
-                                .store(true, Ordering::Relaxed);
+                                .store(true, Ordering::Release);
                         }
                         if !shared.filename.is_empty() {
                             if shared.filename != self.filename_string_cache {
@@ -856,7 +926,7 @@ impl EventHandler for MPDDisplay {
                             self.dirty_flag
                                 .as_ref()
                                 .unwrap()
-                                .store(true, Ordering::Relaxed);
+                                .store(true, Ordering::Release);
                         }
                         self.timer = shared.pos;
                         self.length = shared.length;
@@ -882,102 +952,111 @@ impl EventHandler for MPDDisplay {
             }
         }
 
-        let delta = timer::delta(ctx);
+        let delta = ctx.time.delta();
         self.timer += delta.as_secs_f64();
-        let timer_diff = seconds_to_time(self.length - self.timer);
+        let mut timer_diff = seconds_to_time(self.length - self.timer);
+        if !self.opts.disable_show_percentage {
+            timer_diff = timer_diff + " " + &time_to_percentage(self.length, self.timer);
+        }
+        let timer_diff_len = timer_diff.len();
         self.timer_text = Text::new(timer_diff);
-        self.timer_text.set_font(
+        self.timer_text.set_scale(PxScale {
-            Font::default(),
-            PxScale {
             x: self.timer_x,
             y: self.timer_y,
-            },
+        });
-        );
+        if timer_diff_len != self.timer_text_len {
+            self.timer_text_len = timer_diff_len;
+            self.update_bg_mesh(ctx)?;
+        } else if self.mpd_play_state != MPDPlayState::Playing
+            && self.prev_mpd_play_state == MPDPlayState::Playing
+        {
+            self.update_bg_mesh(ctx)?;
+        }
 
         Ok(())
     }
 
     fn draw(&mut self, ctx: &mut ggez::Context) -> Result<(), GameError> {
-        graphics::clear(ctx, Color::BLACK);
+        let mut canvas = graphics::Canvas::from_frame(ctx, Color::BLACK);
 
         if self.mpd_play_state != MPDPlayState::Stopped
             && self.album_art.is_some()
             && self.album_art_draw_transform.is_some()
         {
-            self.album_art.as_ref().unwrap().draw(
+            canvas.draw(
-                ctx,
+                self.album_art.as_ref().unwrap(),
                 DrawParam {
-                    trans: self.album_art_draw_transform.unwrap(),
+                    transform: self.album_art_draw_transform.unwrap(),
                     ..Default::default()
                 },
-            )?;
+            );
         }
 
         if !self.hide_text {
-            self.notice_text.draw(ctx, DrawParam::default())?;
+            canvas.draw(&self.notice_text, DrawParam::default());
 
             if self.mpd_play_state != MPDPlayState::Stopped && self.is_valid && self.is_initialized
             {
                 if let Some(mesh) = &self.text_bg_mesh {
-                    mesh.draw(ctx, DrawParam::default())?;
+                    canvas.draw(mesh, DrawParam::default());
                 }
 
                 if !self.opts.disable_show_filename {
-                    self.filename_text.draw(
+                    canvas.draw(
-                        ctx,
+                        &self.filename_text,
                         DrawParam {
-                            trans: self.filename_transform,
+                            transform: self.filename_transform,
                             ..Default::default()
                         },
-                    )?;
+                    );
                 }
 
                 if !self.opts.disable_show_album {
-                    self.album_text.draw(
+                    canvas.draw(
-                        ctx,
+                        &self.album_text,
                         DrawParam {
-                            trans: self.album_transform,
+                            transform: self.album_transform,
                             ..Default::default()
                         },
-                    )?;
+                    );
                 }
 
                 if !self.opts.disable_show_artist {
-                    self.artist_text.draw(
+                    canvas.draw(
-                        ctx,
+                        &self.artist_text,
                         DrawParam {
-                            trans: self.artist_transform,
+                            transform: self.artist_transform,
                             ..Default::default()
                         },
-                    )?;
+                    );
                 }
 
                 if !self.opts.disable_show_title {
-                    self.title_text.draw(
+                    canvas.draw(
-                        ctx,
+                        &self.title_text,
                         DrawParam {
-                            trans: self.title_transform,
+                            transform: self.title_transform,
                             ..Default::default()
                         },
-                    )?;
+                    );
                 }
 
                 if self.mpd_play_state == MPDPlayState::Playing {
-                    self.timer_text.draw(
+                    canvas.draw(
-                        ctx,
+                        &self.timer_text,
                         DrawParam {
-                            trans: self.timer_transform,
+                            transform: self.timer_transform,
                             ..Default::default()
                         },
-                    )?;
+                    );
                 }
             }
         }
 
-        graphics::present(ctx)
+        canvas.finish(ctx)
     }
 
-    fn text_input_event(&mut self, _ctx: &mut Context, character: char) {
+    fn text_input_event(&mut self, _ctx: &mut Context, character: char) -> Result<(), GameError> {
         if !self.is_initialized && self.opts.enable_prompt_password && !character.is_control() {
             if self.opts.password.is_none() {
                 let s = String::from(character);
@@ -988,17 +1067,18 @@ impl EventHandler for MPDDisplay {
                 self.notice_text.add('*');
             }
         }
+
+        Ok(())
     }
 
     fn key_down_event(
         &mut self,
         _ctx: &mut Context,
-        keycode: event::KeyCode,
+        input: KeyInput,
-        _keymods: event::KeyMods,
         _repeat: bool,
-    ) {
+    ) -> Result<(), GameError> {
         if !self.is_initialized && self.opts.enable_prompt_password {
-            if keycode == event::KeyCode::Back {
+            if input.keycode == Some(keyboard::KeyCode::Back) {
                 let s: String = self.notice_text.contents();
 
                 if s.ends_with('*') {
@@ -1008,28 +1088,34 @@ impl EventHandler for MPDDisplay {
                 if let Some(input_p) = &mut self.opts.password {
                     input_p.pop();
                 }
-            } else if keycode == event::KeyCode::Return {
+            } else if input.keycode == Some(keyboard::KeyCode::Return) {
                 self.password_entered = true;
             }
-        } else if keycode == event::KeyCode::H {
+        } else if input.keycode == Some(keyboard::KeyCode::H) {
             self.hide_text = true;
         }
+
+        Ok(())
     }
 
-    fn key_up_event(
+    fn key_up_event(&mut self, _ctx: &mut Context, input: KeyInput) -> Result<(), GameError> {
-        &mut self,
+        if input.keycode == Some(keyboard::KeyCode::H) {
-        _ctx: &mut Context,
-        keycode: event::KeyCode,
-        _keymods: event::KeyMods,
-    ) {
-        if keycode == event::KeyCode::H {
             self.hide_text = false;
         }
+
+        Ok(())
     }
 
-    fn resize_event(&mut self, ctx: &mut Context, _width: f32, _height: f32) {
+    fn resize_event(
+        &mut self,
+        ctx: &mut Context,
+        _width: f32,
+        _height: f32,
+    ) -> Result<(), GameError> {
         self.get_album_art_transform(ctx, !self.opts.do_not_fill_scale_album_art);
         self.refresh_text_transforms(ctx)
             .expect("Failed to set text transforms");
+
+        Ok(())
     }
 }

src/main.rs

@@ -4,52 +4,56 @@ mod mpd_handler;
 #[cfg(feature = "unicode_support")]
 mod unicode_support;
 
+use clap::Parser;
 use ggez::conf::{WindowMode, WindowSetup};
 use ggez::event::winit_event::{ElementState, KeyboardInput, ModifiersState};
 use ggez::event::{self, ControlFlow, EventHandler};
-use ggez::filesystem::mount;
+use ggez::input::keyboard::{self, KeyInput};
-use ggez::graphics::{self, Rect};
 use ggez::{ContextBuilder, GameError};
+use std::fs::File;
+use std::io::Read;
 use std::net::Ipv4Addr;
 use std::path::PathBuf;
 use std::thread;
 use std::time::{Duration, Instant};
-use structopt::StructOpt;
 
 use debug_log::log;
 
-#[derive(StructOpt, Debug, Clone)]
+#[derive(Parser, Debug, Clone)]
-#[structopt(name = "mpd_info_screen")]
+#[command(author, version, about, long_about = None)]
 pub struct Opt {
     host: Ipv4Addr,
-    #[structopt(default_value = "6600")]
+    #[arg(default_value = "6600")]
     port: u16,
-    #[structopt(short = "p")]
+    #[arg(short = 'p')]
     password: Option<String>,
-    #[structopt(long = "disable-show-title", help = "disable title display")]
+    #[arg(long = "disable-show-title", help = "disable title display")]
     disable_show_title: bool,
-    #[structopt(long = "disable-show-artist", help = "disable artist display")]
+    #[arg(long = "disable-show-artist", help = "disable artist display")]
     disable_show_artist: bool,
-    #[structopt(long = "disable-show-album", help = "disable album display")]
+    #[arg(long = "disable-show-album", help = "disable album display")]
     disable_show_album: bool,
-    #[structopt(long = "disable-show-filename", help = "disable filename display")]
+    #[arg(long = "disable-show-filename", help = "disable filename display")]
     disable_show_filename: bool,
-    #[structopt(long = "pprompt", help = "input password via prompt")]
+    #[arg(long = "disable-show-percentage", help = "disable percentage display")]
+    disable_show_percentage: bool,
+    #[arg(
+        long = "force-text-height-scale",
+        help = "force-set text height relative to window height as a ratio (default 0.12)"
+    )]
+    force_text_height_scale: Option<f32>,
+    #[arg(long = "pprompt", help = "input password via prompt")]
     enable_prompt_password: bool,
-    #[structopt(
+    #[arg(long = "pfile", help = "read password from file")]
+    password_file: Option<PathBuf>,
+    #[arg(
         long = "no-scale-fill",
         help = "don't scale-fill the album art to the window"
     )]
     do_not_fill_scale_album_art: bool,
-    #[structopt(
+    #[arg(short = 'l', long = "log-level", default_value = "error")]
-        short = "l",
-        long = "log-level",
-        possible_values = &debug_log::LogLevel::variants(),
-        default_value = "Error",
-        case_insensitive = true,
-    )]
     log_level: debug_log::LogLevel,
-    #[structopt(
+    #[arg(
         short,
         long,
         help = "sets the opacity of the text background (0-255)",
@@ -59,9 +63,35 @@ pub struct Opt {
 }
 
 fn main() -> Result<(), String> {
-    let opt = Opt::from_args();
+    let mut opt = Opt::parse();
+    if let Some(forced_scale) = &mut opt.force_text_height_scale {
+        if *forced_scale < 0.01 {
+            *forced_scale = 0.01;
+            println!("WARNING: Clamped \"force-text-height-scale\" to minimum of 0.01!");
+        } else if *forced_scale > 0.5 {
+            *forced_scale = 0.5;
+            println!("WARNING: Clamped \"force-text-height-scale\" to maximum of 0.5!");
+        }
+    }
     println!("Got host addr == {}, port == {}", opt.host, opt.port);
 
+    // Read password from file if exists, error otherwise.
+    if let Some(psswd_file_path) = opt.password_file.as_ref() {
+        let mut file = File::open(psswd_file_path).expect("pfile/password_file should exist");
+        let mut content: String = String::new();
+
+        file.read_to_string(&mut content)
+            .expect("Should be able to read from pfile/password_file");
+
+        if content.ends_with("\r\n") {
+            content.truncate(content.len() - 2);
+        } else if content.ends_with('\n') {
+            content.truncate(content.len() - 1);
+        }
+
+        opt.password = Some(content);
+    }
+
     let (mut ctx, event_loop) = ContextBuilder::new("mpd_info_screen", "Stephen Seo")
         .window_setup(WindowSetup {
             title: "mpd info screen".into(),
@@ -69,20 +99,21 @@ fn main() -> Result<(), String> {
         })
         .window_mode(WindowMode {
             resizable: true,
+            resize_on_scale_factor_change: true,
             ..Default::default()
         })
         .build()
         .expect("Failed to create ggez context");
 
     // mount "/" read-only so that fonts can be loaded via absolute paths
-    mount(&mut ctx, &PathBuf::from("/"), true);
+    ctx.fs.mount(&PathBuf::from("/"), true);
 
     let mut display = display::MPDDisplay::new(&mut ctx, opt.clone());
 
     let mut modifiers_state: ModifiersState = ModifiersState::default();
 
     event_loop.run(move |mut event, _window_target, control_flow| {
-        if !ctx.continuing {
+        if !ctx.continuing || ctx.quit_requested {
             *control_flow = ControlFlow::Exit;
             return;
         }
@@ -94,7 +125,7 @@ fn main() -> Result<(), String> {
         event::process_event(ctx, &mut event);
         match event {
             event::winit_event::Event::WindowEvent { event, .. } => match event {
-                event::winit_event::WindowEvent::CloseRequested => event::quit(ctx),
+                event::winit_event::WindowEvent::CloseRequested => ctx.request_quit(),
                 event::winit_event::WindowEvent::ModifiersChanged(state) => {
                     modifiers_state = state;
                 }
@@ -108,40 +139,37 @@ fn main() -> Result<(), String> {
                         },
                     is_synthetic: _,
                 } => {
-                    if keycode == event::KeyCode::Escape {
+                    if keycode == keyboard::KeyCode::Escape {
                         *control_flow = ControlFlow::Exit;
                         return;
                     }
+                    let ki = KeyInput {
+                        scancode: 0,
+                        keycode: Some(keycode),
+                        mods: From::from(modifiers_state),
+                    };
                     if state == ElementState::Pressed {
-                        display.key_down_event(ctx, keycode, modifiers_state.into(), false);
+                        display.key_down_event(ctx, ki, false).ok();
                     } else {
-                        display.key_up_event(ctx, keycode, modifiers_state.into());
+                        display.key_up_event(ctx, ki).ok();
                     }
                 }
                 event::winit_event::WindowEvent::Resized(phys_size) => {
-                    graphics::set_screen_coordinates(
+                    display
-                        ctx,
+                        .resize_event(ctx, phys_size.width as f32, phys_size.height as f32)
-                        Rect {
+                        .ok();
-                            x: 0.0,
-                            y: 0.0,
-                            w: phys_size.width as f32,
-                            h: phys_size.height as f32,
-                        },
-                    )
-                    .expect("Failed to handle resizing window");
-                    display.resize_event(ctx, phys_size.width as f32, phys_size.height as f32);
                 }
                 event::winit_event::WindowEvent::ReceivedCharacter(ch) => {
-                    display.text_input_event(ctx, ch);
+                    display.text_input_event(ctx, ch).ok();
                 }
                 x => log(
-                    format!("Other window event fired: {:?}", x),
+                    format!("Other window event fired: {x:?}"),
                     debug_log::LogState::Verbose,
                     opt.log_level,
                 ),
             },
             event::winit_event::Event::MainEventsCleared => {
-                ctx.timer_context.tick();
+                ctx.time.tick();
 
                 let mut game_result: Result<(), GameError> = display.update(ctx);
                 if game_result.is_err() {
@@ -149,21 +177,24 @@ fn main() -> Result<(), String> {
                     *control_flow = ControlFlow::Exit;
                     return;
                 }
+
+                ctx.gfx.begin_frame().unwrap();
                 game_result = display.draw(ctx);
                 if game_result.is_err() {
                     println!("Error draw: {}", game_result.unwrap_err());
                     *control_flow = ControlFlow::Exit;
                     return;
                 }
+                ctx.gfx.end_frame().unwrap();
 
-                ctx.mouse_context.reset_delta();
+                ctx.mouse.reset_delta();
 
                 // sleep to force ~5 fps
                 thread::sleep(Duration::from_millis(200));
                 ggez::timer::yield_now();
             }
             x => log(
-                format!("Device event fired: {:?}", x),
+                format!("Device event fired: {x:?}"),
                 debug_log::LogState::Verbose,
                 opt.log_level,
             ),

src/mpd_handler.rs

@@ -250,6 +250,8 @@ impl MPDHandler {
         )
         .map_err(|_| String::from("Failed to get TCP connection (is MPD running?)"))?;
 
+        let password_is_empty = password.is_empty();
+
         let s = MPDHandler {
             state: Arc::new(RwLock::new(MPDHandlerState {
                 art_data: Vec::new(),
@@ -266,7 +268,7 @@ impl MPDHandler {
                 password,
                 error_text: String::new(),
                 can_authenticate: true,
-                is_authenticated: false,
+                is_authenticated: password_is_empty,
                 can_get_album_art: true,
                 can_get_album_art_in_dir: true,
                 can_get_status: true,
@@ -274,9 +276,9 @@ impl MPDHandler {
                 did_check_overtime: false,
                 force_get_status: false,
                 force_get_current_song: false,
-                song_title_get_time: Instant::now() - Duration::from_secs(10),
+                song_title_get_time: Instant::now().checked_sub(Duration::from_secs(10)).unwrap(),
-                song_pos_get_time: Instant::now() - Duration::from_secs(10),
+                song_pos_get_time: Instant::now().checked_sub(Duration::from_secs(10)).unwrap(),
-                song_length_get_time: Instant::now() - Duration::from_secs(10),
+                song_length_get_time: Instant::now().checked_sub(Duration::from_secs(10)).unwrap(),
                 self_thread: None,
                 dirty_flag: Arc::new(AtomicBool::new(true)),
                 stop_flag: Arc::new(AtomicBool::new(false)),
@@ -330,7 +332,7 @@ impl MPDHandler {
     #[allow(dead_code)]
     pub fn is_dirty(&self) -> Result<bool, ()> {
         if let Ok(write_lock) = self.state.try_write() {
-            return Ok(write_lock.dirty_flag.swap(false, Ordering::Relaxed));
+            return Ok(write_lock.dirty_flag.swap(false, Ordering::AcqRel));
         }
 
         Err(())
@@ -370,7 +372,7 @@ impl MPDHandler {
 
     pub fn stop_thread(&self) -> Result<(), ()> {
         let read_handle = self.state.try_read().map_err(|_| ())?;
-        read_handle.stop_flag.store(true, Ordering::Relaxed);
+        read_handle.stop_flag.store(true, Ordering::Release);
         Ok(())
     }
 
@@ -426,20 +428,20 @@ impl MPDHandler {
 
             if let Err(err_string) = self.handler_read_block(&mut buf, &mut saved, &mut saved_str) {
                 log(
-                    format!("read_block error: {}", err_string),
+                    format!("read_block error: {err_string}"),
                     LogState::Warning,
                     log_level,
                 );
             } else if let Err(err_string) = self.handler_write_block() {
                 log(
-                    format!("write_block error: {}", err_string),
+                    format!("write_block error: {err_string}"),
                     LogState::Warning,
                     log_level,
                 );
             }
 
             if let Ok(read_handle) = self.state.try_read() {
-                if read_handle.stop_flag.load(Ordering::Relaxed) || !read_handle.can_authenticate {
+                if read_handle.stop_flag.load(Ordering::Acquire) || !read_handle.can_authenticate {
                     break 'main;
                 }
             }
@@ -477,7 +479,7 @@ impl MPDHandler {
         let read_result = write_handle.stream.read(buf);
         if let Err(io_err) = read_result {
             if io_err.kind() != io::ErrorKind::WouldBlock {
-                return Err(format!("TCP stream error: {}", io_err));
+                return Err(format!("TCP stream error: {io_err}"));
             } else {
                 return Ok(());
             }
@@ -509,7 +511,7 @@ impl MPDHandler {
                         write_handle.log_level,
                     );
                     if write_handle.art_data.len() == write_handle.art_data_size {
-                        write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                        write_handle.dirty_flag.store(true, Ordering::Release);
                     }
                 } else {
                     write_handle.art_data.extend_from_slice(&buf_vec);
@@ -524,7 +526,7 @@ impl MPDHandler {
                         write_handle.log_level,
                     );
                     if write_handle.art_data.len() == write_handle.art_data_size {
-                        write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                        write_handle.dirty_flag.store(true, Ordering::Release);
                     }
                     break 'handle_buf;
                 }
@@ -559,7 +561,7 @@ impl MPDHandler {
                         PollState::ReadPicture => {
                             if write_handle.art_data.is_empty() {
                                 write_handle.can_get_album_art = false;
-                                write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                                write_handle.dirty_flag.store(true, Ordering::Release);
                                 log(
                                     "No embedded album art",
                                     LogState::Warning,
@@ -570,7 +572,7 @@ impl MPDHandler {
                         PollState::ReadPictureInDir => {
                             if write_handle.art_data.is_empty() {
                                 write_handle.can_get_album_art_in_dir = false;
-                                write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                                write_handle.dirty_flag.store(true, Ordering::Release);
                                 log(
                                     "No album art in dir",
                                     LogState::Warning,
@@ -587,13 +589,13 @@ impl MPDHandler {
                     match write_handle.poll_state {
                         PollState::Password => {
                             write_handle.can_authenticate = false;
-                            write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                            write_handle.dirty_flag.store(true, Ordering::Release);
                             write_handle.error_text = "Failed to authenticate to MPD".into();
-                            write_handle.stop_flag.store(true, Ordering::Relaxed);
+                            write_handle.stop_flag.store(true, Ordering::Release);
                         }
                         PollState::CurrentSong | PollState::Status => {
                             write_handle.can_get_status = false;
-                            write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                            write_handle.dirty_flag.store(true, Ordering::Release);
                             write_handle.error_text = "Failed to get MPD status".into();
                             if line.contains("don't have permission") {
                                 write_handle.can_authenticate = false;
@@ -602,7 +604,7 @@ impl MPDHandler {
                         }
                         PollState::ReadPicture => {
                             write_handle.can_get_album_art = false;
-                            write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                            write_handle.dirty_flag.store(true, Ordering::Release);
                             log(
                                 "Failed to get readpicture",
                                 LogState::Warning,
@@ -613,7 +615,7 @@ impl MPDHandler {
                         }
                         PollState::ReadPictureInDir => {
                             write_handle.can_get_album_art_in_dir = false;
-                            write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                            write_handle.dirty_flag.store(true, Ordering::Release);
                             log(
                                 "Failed to get albumart",
                                 LogState::Warning,
@@ -649,9 +651,9 @@ impl MPDHandler {
                             MPDPlayState::Paused
                         };
                         write_handle.error_text.clear();
-                        write!(&mut write_handle.error_text, "MPD has {:?}", got_mpd_state).ok();
+                        write!(&mut write_handle.error_text, "MPD has {got_mpd_state:?}").ok();
                         log(
-                            format!("MPD is {:?}", got_mpd_state),
+                            format!("MPD is {got_mpd_state:?}"),
                             LogState::Warning,
                             write_handle.log_level,
                         );
@@ -675,13 +677,13 @@ impl MPDHandler {
                         write_handle.force_get_status = true;
                         write_handle.error_text.clear();
                     }
-                    write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                    write_handle.dirty_flag.store(true, Ordering::Release);
                     write_handle.song_title_get_time = Instant::now();
                 } else if line.starts_with("elapsed: ") {
                     let parse_pos_result = f64::from_str(&line.split_off(9));
                     if let Ok(value) = parse_pos_result {
                         write_handle.current_song_position = value;
-                        write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                        write_handle.dirty_flag.store(true, Ordering::Release);
                         write_handle.song_pos_get_time = Instant::now();
                     } else {
                         log(
@@ -694,7 +696,7 @@ impl MPDHandler {
                     let parse_pos_result = f64::from_str(&line.split_off(10));
                     if let Ok(value) = parse_pos_result {
                         write_handle.current_song_length = value;
-                        write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                        write_handle.dirty_flag.store(true, Ordering::Release);
                         write_handle.song_length_get_time = Instant::now();
                     } else {
                         log(
@@ -707,7 +709,7 @@ impl MPDHandler {
                     let parse_artsize_result = usize::from_str(&line.split_off(6));
                     if let Ok(value) = parse_artsize_result {
                         write_handle.art_data_size = value;
-                        write_handle.dirty_flag.store(true, Ordering::Relaxed);
+                        write_handle.dirty_flag.store(true, Ordering::Release);
                     } else {
                         log(
                             "Failed to parse album art byte size",
@@ -736,7 +738,7 @@ impl MPDHandler {
                     write_handle.art_data_type = line.split_off(6);
                 } else {
                     log(
-                        format!("Got unrecognized/ignored line: {}", line),
+                        format!("Got unrecognized/ignored line: {line}"),
                         LogState::Warning,
                         write_handle.log_level,
                     );
@@ -760,7 +762,7 @@ impl MPDHandler {
         } // 'handle_buf: loop
 
         if got_mpd_state != write_handle.mpd_play_state {
-            write_handle.dirty_flag.store(true, Ordering::Relaxed);
+            write_handle.dirty_flag.store(true, Ordering::Release);
             if got_mpd_state == MPDPlayState::Playing {
                 write_handle.error_text.clear();
             }
@@ -799,12 +801,12 @@ impl MPDHandler {
                 let p = write_handle.password.clone();
                 let write_result = write_handle
                     .stream
-                    .write(format!("password {}\n", p).as_bytes());
+                    .write(format!("password {p}\n").as_bytes());
                 if write_result.is_ok() {
                     write_handle.poll_state = PollState::Password;
                 } else if let Err(e) = write_result {
                     log(
-                        format!("Failed to send password for authentication: {}", e),
+                        format!("Failed to send password for authentication: {e}"),
                         LogState::Error,
                         write_handle.log_level,
                     );
@@ -820,7 +822,7 @@ impl MPDHandler {
                     write_handle.poll_state = PollState::CurrentSong;
                 } else if let Err(e) = write_result {
                     log(
-                        format!("Failed to request song info over stream: {}", e),
+                        format!("Failed to request song info over stream: {e}"),
                         LogState::Error,
                         write_handle.log_level,
                     );
@@ -836,7 +838,7 @@ impl MPDHandler {
                     write_handle.poll_state = PollState::Status;
                 } else if let Err(e) = write_result {
                     log(
-                        format!("Failed to request status over stream: {}", e),
+                        format!("Failed to request status over stream: {e}"),
                         LogState::Error,
                         write_handle.log_level,
                     );
@@ -848,14 +850,14 @@ impl MPDHandler {
                 let title = write_handle.current_song_filename.clone();
                 let art_data_length = write_handle.art_data.len();
                 if write_handle.can_get_album_art {
-                    let write_result = write_handle.stream.write(
+                    let write_result = write_handle
-                        format!("readpicture \"{}\" {}\n", title, art_data_length).as_bytes(),
+                        .stream
-                    );
+                        .write(format!("readpicture \"{title}\" {art_data_length}\n").as_bytes());
                     if write_result.is_ok() {
                         write_handle.poll_state = PollState::ReadPicture;
                     } else if let Err(e) = write_result {
                         log(
-                            format!("Failed to request album art: {}", e),
+                            format!("Failed to request album art: {e}"),
                             LogState::Error,
                             write_handle.log_level,
                         );
@@ -863,12 +865,12 @@ impl MPDHandler {
                 } else if write_handle.can_get_album_art_in_dir {
                     let write_result = write_handle
                         .stream
-                        .write(format!("albumart \"{}\" {}\n", title, art_data_length).as_bytes());
+                        .write(format!("albumart \"{title}\" {art_data_length}\n").as_bytes());
                     if write_result.is_ok() {
                         write_handle.poll_state = PollState::ReadPictureInDir;
                     } else if let Err(e) = write_result {
                         log(
-                            format!("Failed to request album art in dir: {}", e),
+                            format!("Failed to request album art in dir: {e}"),
                             LogState::Error,
                             write_handle.log_level,
                         );

src/unicode_support/fontconfig.rs

@@ -67,8 +67,7 @@ mod ffi {
                         return Err(String::from("Failed to FcFontMatch (FcResult is not FcResultMatch; result_pattern is not null)"));
                     } else {
                         return Err(format!(
-                            "Failed to FcFontMatch (FcResult is not FcResultMatch; {:?})",
+                            "Failed to FcFontMatch (FcResult is not FcResultMatch; {result:?})"
-                            result
                         ));
                     }
                 } else if result_pattern.is_null() {