feat: 改进配置方式，重写逻辑。

src-tauri/Cargo.lock

@@ -573,6 +573,7 @@ dependencies = [
  "base64",
  "bmp",
  "color_space",
+ "futures",
  "hex",
  "once_cell",
  "paris",

src-tauri/Cargo.toml

@@ -31,6 +31,7 @@ hex = "0.4.3"
 rumqttc = "0.17.0"
 time = { version = "0.3.17", features = ["formatting"] }
 color_space = "0.5.3"
+futures = "0.3.25"
 
 [features]
 # by default Tauri runs in production mode

src-tauri/src/core/core.rs

@@ -1,16 +1,23 @@
+use futures::{future::join_all, stream::FuturesUnordered, StreamExt};
 use once_cell::sync::OnceCell;
 use paris::info;
 use serde::{Deserialize, Serialize};
-use std::{sync::Arc, time::Duration};
+use serde_json::value::Index;
+use std::{collections::HashMap, iter::Map, sync::Arc, thread, time::Duration};
 use tauri::async_runtime::RwLock;
 use tokio::{
+    join,
+    sync::mpsc,
     task,
     time::{sleep, Instant},
 };
 use tracing::warn;
 
 use crate::{
-    picker::{led_color::LedColor, manager::Picker},
+    picker::{
+        config::DisplayConfig, display_picker::DisplayPicker, led_color::LedColor, manager::Picker,
+        screenshot::Screenshot,
+    },
     rpc,
 };
 
@@ -84,51 +91,100 @@ impl CoreManager {
     }
 
     pub async fn play_follow(&self) -> anyhow::Result<()> {
-        {
-            let lock = self.ambient_light_mode.read().await;
-            if let AmbientLightMode::Follow = *lock {
-                Picker::global().refresh_displays().await?;
-            } else {
-                return Ok(());
+        let lock = self.ambient_light_mode.read().await;
+        let mut futs = vec![];
+        if let AmbientLightMode::Follow = *lock {
+            drop(lock);
+            let configs = Picker::global().display_configs.lock().await;
+
+            let (tx, mut rx) = mpsc::channel(10);
+
+            for config in configs.to_owned() {
+                let tx = tx.clone();
+                let fut = tokio::spawn(async move {
+                    match Self::follow_display_by_config(config, tx).await {
+                        Ok(_) => {}
+                        Err(error) => {
+                            warn!("following failed. {}", error);
+                        }
+                    }
+                });
+                futs.push(fut);
             }
-        };
+
+            let configs = configs.clone();
+
+            tokio::spawn(async move {
+                let mut global_colors = HashMap::new();
+                while let Some(screenshot) = rx.recv().await {
+                    let start_at = Instant::now();
+                    match screenshot.get_top_colors().await {
+                        Ok(colors) => {
+                            let start = screenshot.get_top_of_led_strip_range().min().unwrap_or(0);
+
+                            let colors_len = colors.len();
+                            for (index, color) in colors.into_iter().enumerate() {
+                                global_colors.insert(index + start, color);
+                            }
+
+                            if global_colors.len() == 60 {
+                                let mut colors = vec![];
+                                for index in 0..global_colors.len() {
+                                    colors.push(*global_colors.get(&index).unwrap());
+                                }
+                                global_colors = HashMap::new();
+                                match rpc::manager::Manager::global()
+                                    .publish_led_colors(&colors)
+                                    .await
+                                {
+                                    Ok(_) => {
+                                        info!("publish successful",);
+                                    }
+                                    Err(error) => {
+                                        warn!("publish led colors failed. {}", error);
+                                    }
+                                }
+                            }
+                        }
+                        Err(_) => {}
+                    };
+                }
+            });
+
+            join_all(futs).await;
+        } else {
+            drop(lock);
+            return Ok(());
+        }
+
+        Ok(())
+    }
+
+    async fn follow_display_by_config(
+        config: DisplayConfig,
+        tx: mpsc::Sender<Screenshot>,
+    ) -> anyhow::Result<()> {
+        let mut picker = DisplayPicker::from_config(config)?;
 
         loop {
             let start = Instant::now();
             let next_tick = start + Duration::from_millis(16);
-            info!("Following");
-            let lock = self.ambient_light_mode.read().await;
+            let lock = Self::global().ambient_light_mode.read().await;
             if let AmbientLightMode::Follow = *lock {
-                task::spawn(async {
-                    let start = Instant::now();
-                    match Self::follow_once().await {
-                        Ok(_) => {}
-                        Err(error) => {
-                            warn!("take screenshots failed. {}", error);
-                        }
-                    };
-                    println!(
-                        "Time elapsed in expensive_function() is: {:?}",
-                        start.elapsed()
-                    );
-                });
+                drop(lock);
+                let screenshot = picker.take_screenshot()?;
+                // info!("Take Screenshot Spend: {:?}", start.elapsed());
+                tx.send(screenshot).await;
             } else {
                 break;
             }
             tokio::time::sleep_until(next_tick).await;
         }
 
-        Ok(())
-    }
+        // // Picker::global().take_screenshots_for_all().await?;
+        // // let colors = Picker::global().get_led_strip_colors().await?;
 
-    async fn follow_once() -> anyhow::Result<()> {
-        Picker::global().take_screenshots_for_all().await?;
-        let colors = Picker::global().get_led_strip_colors().await?;
-
-        let colors = colors.into_iter().rev().collect();
-        rpc::manager::Manager::global()
-            .publish_led_colors(&colors)
-            .await?;
+        // // let colors = colors.into_iter().rev().collect();
         Ok(())
     }
 }

src-tauri/src/main.rs

@@ -7,12 +7,12 @@ mod core;
 mod picker;
 mod rpc;
 
-use crate::core::CoreManager;
 use crate::core::AmbientLightMode;
+use crate::core::CoreManager;
 use paris::*;
 use picker::led_color::LedColor;
 use picker::manager::Picker;
-use std::time::Instant;
+use std::vec;
 
 #[tauri::command]
 async fn refresh_displays() {
@@ -26,24 +26,22 @@ async fn refresh_displays() {
 
 #[tauri::command]
 async fn take_snapshot() -> Vec<String> {
-    let start = Instant::now();
     let manager = Picker::global();
 
-    match manager.take_screenshots_for_all().await {
-        Ok(screenshots) => {
-            info!("screenshots len: {}", screenshots.len());
-            let mut futures = Vec::new();
-            for screenshot in screenshots {
-                let future = screenshot.to_webp_base64().await;
-                futures.push(future);
-            }
-            futures
+    let start = time::Instant::now();
+    let base64_bitmap_list = match manager.list_displays().await {
+        Ok(base64_bitmap_list) => {
+            info!("screenshots len: {}", base64_bitmap_list.len());
+            base64_bitmap_list
         }
         Err(error) => {
             error!("can not take screenshots for all. {}", error);
+
             vec![]
         }
-    }
+    };
+    info!("截图花费 {} s", start.elapsed().as_seconds_f32());
+    base64_bitmap_list
 }
 
 #[tauri::command]

src-tauri/src/picker/config.rs

@@ -0,0 +1,58 @@
+#[derive(Clone, Copy)]
+pub struct LedStripConfig {
+    pub index: usize,
+    pub global_start_position: usize,
+    pub global_end_position: usize,
+}
+
+#[derive(Clone, Copy)]
+pub struct DisplayConfig {
+    pub index_of_display: usize,
+    pub display_width: usize,
+    pub display_height: usize,
+    pub top_led_strip: LedStripConfig,
+    pub bottom_led_strip: LedStripConfig,
+    pub left_led_strip: LedStripConfig,
+    pub right_led_strip: LedStripConfig,
+}
+
+#[derive(Clone, Copy)]
+pub enum LedFlowX {
+    LR, // from left to right
+    RL, // from right to left
+}
+#[derive(Clone, Copy)]
+pub enum LedFlowY {
+    TB, // from top to bottom
+    BT, // from bottom to top
+}
+
+impl DisplayConfig {
+    pub fn default(index_of_display: usize, display_width: usize, display_height: usize) -> Self {
+        Self {
+            index_of_display,
+            display_width,
+            display_height,
+            top_led_strip: LedStripConfig {
+                index: 0,
+                global_start_position: 0,
+                global_end_position: 0,
+            },
+            bottom_led_strip: LedStripConfig {
+                index: 0,
+                global_start_position: 0,
+                global_end_position: 0,
+            },
+            left_led_strip: LedStripConfig {
+                index: 0,
+                global_start_position: 0,
+                global_end_position: 0,
+            },
+            right_led_strip: LedStripConfig {
+                index: 0,
+                global_start_position: 0,
+                global_end_position: 0,
+            },
+        }
+    }
+}

src-tauri/src/picker/display_picker.rs

@@ -0,0 +1,51 @@
+use paris::info;
+use scrap::{Capturer, Display};
+
+use super::{config::DisplayConfig, screen::Screen, screenshot::Screenshot};
+
+pub struct DisplayPicker {
+    pub screen: Screen,
+    pub config: DisplayConfig,
+}
+
+impl DisplayPicker {
+    pub fn new(screen: Screen, config: DisplayConfig) -> Self {
+        Self { screen, config }
+    }
+
+    pub fn from_config(config: DisplayConfig) -> anyhow::Result<Self> {
+        let displays = Display::all()
+            .map_err(|error| anyhow::anyhow!("Can not get all of displays. {}", error))?;
+        let display = displays
+            .into_iter()
+            .skip(config.index_of_display)
+            .next();
+
+        match display {
+            Some(display) => {
+                let height = display.height();
+                let width = display.width();
+                info!("dw: {}, cw: {}", width, config.display_height);
+                assert_eq!(width, config.display_width);
+                let capturer = Capturer::new(display)?;
+                let screen = Screen::new(capturer, width, height);
+
+                Ok(Self { screen, config })
+            }
+            None => {
+                anyhow::bail!("Index out of displays range.")
+            }
+        }
+    }
+
+    pub fn take_screenshot(&mut self) -> anyhow::Result<Screenshot> {
+        let bitmap = self
+            .screen
+            .take()
+            .map_err(|error| anyhow::anyhow!("take screenshot for display failed. {}", error))?;
+
+        // info!("bitmap size {}", bitmap.len());
+        let screenshot = Screenshot::new(bitmap, self.config);
+        Ok(screenshot)
+    }
+}

src-tauri/src/picker/manager.rs

@@ -1,16 +1,24 @@
+use futures::{stream::FuturesUnordered, StreamExt};
 use once_cell::sync::OnceCell;
-use paris::*;
-use scrap::{Capturer, Display};
+use paris::info;
+use scrap::Display;
 use std::sync::Arc;
-use tokio::sync::Mutex;
+use tokio::{sync::Mutex, task};
 
-use crate::picker::screen::Screen;
+use crate::picker::{
+    config::{LedFlowX, LedFlowY, LedStripConfig},
+    screen::Screen,
+};
 
-use super::{led_color::LedColor, screenshot::Screenshot};
+use super::{
+    config::DisplayConfig, display_picker::DisplayPicker, led_color::LedColor,
+    screenshot::Screenshot,
+};
 
 pub struct Picker {
     pub screens: Arc<Mutex<Vec<Screen>>>,
     pub screenshots: Arc<Mutex<Vec<Screenshot>>>,
+    pub display_configs: Arc<Mutex<Vec<DisplayConfig>>>,
 }
 
 impl Picker {
@@ -20,46 +28,144 @@ impl Picker {
         SCREEN_COLOR_PICKER.get_or_init(|| Picker {
             screens: Arc::new(Mutex::new(vec![])),
             screenshots: Arc::new(Mutex::new(vec![])),
+            display_configs: Arc::new(Mutex::new(vec![
+                DisplayConfig {
+                    index_of_display: 1,
+                    display_width: 1920,
+                    display_height: 1200,
+                    top_led_strip: LedStripConfig {
+                        index: 1,
+                        global_start_position: 32,
+                        global_end_position: 60,
+                    },
+                    bottom_led_strip: LedStripConfig {
+                        index: 0,
+                        global_start_position: 0,
+                        global_end_position: 0,
+                    },
+                    left_led_strip: LedStripConfig {
+                        index: 0,
+                        global_start_position: 0,
+                        global_end_position: 0,
+                    },
+                    right_led_strip: LedStripConfig {
+                        index: 0,
+                        global_start_position: 0,
+                        global_end_position: 0,
+                    },
+                },
+                DisplayConfig {
+                    index_of_display: 0,
+                    display_width: 3008,
+                    display_height: 1692,
+                    top_led_strip: LedStripConfig {
+                        index: 0,
+                        global_start_position: 0,
+                        global_end_position: 32,
+                    },
+                    bottom_led_strip: LedStripConfig {
+                        index: 0,
+                        global_start_position: 0,
+                        global_end_position: 0,
+                    },
+                    left_led_strip: LedStripConfig {
+                        index: 0,
+                        global_start_position: 0,
+                        global_end_position: 0,
+                    },
+                    right_led_strip: LedStripConfig {
+                        index: 0,
+                        global_start_position: 0,
+                        global_end_position: 0,
+                    },
+                },
+            ])),
         })
     }
 
-    pub async fn refresh_displays(&self) -> anyhow::Result<()> {
+    pub async fn list_displays(&self) -> anyhow::Result<Vec<String>> {
+        let mut configs = self.display_configs.lock().await;
+        let screenshots = self.screenshots.lock().await;
+
         let displays = Display::all()
             .map_err(|error| anyhow::anyhow!("Can not get all of displays. {}", error))?;
-        let mut screens = self.screens.lock().await;
-        let mut screenshots = self.screenshots.lock().await;
-        screens.clear();
-        info!("number of displays: {}", displays.len());
-        for display in displays {
+
+        configs.clear();
+        let mut futs = FuturesUnordered::new();
+
+        for (index, display) in displays.iter().enumerate() {
             let height = display.height();
             let width = display.width();
-            match Capturer::new(display) {
-                Ok(capturer) => screens.push(Screen::new(capturer, width, height)),
-                Err(error) => screens.push(Screen::new_failed(
-                    anyhow::anyhow!("{}", error),
-                    width,
-                    height,
-                )),
-            };
-            screenshots.push(Screenshot::new(width, height));
+            let config = DisplayConfig::default(index, width, height);
+            configs.push(config);
         }
 
-        screens.reverse();
-        screenshots.reverse();
-        screenshots[0].set_number_of_leds(22, 0);
-        screenshots[1].set_number_of_leds(38, 0);
+        for (index, display) in displays.iter().enumerate() {
+            let height = display.height();
+            let width = display.width();
+            let config = configs[index];
+            futs.push(async move {
+                let join = task::spawn(Self::preview_display_by_config(config));
+                join.await?
+            });
+        }
+        let mut bitmap_string_list = vec![];
+        while let Some(bitmap_string) = futs.next().await {
+            match bitmap_string {
+                Ok(bitmap_string) => {
+                    bitmap_string_list.push(bitmap_string);
+                }
+                Err(error) => {
+                    anyhow::bail!("can not convert to base64 image. {}", error);
+                }
+            }
+        }
+        Ok(bitmap_string_list)
+    }
+
+    pub async fn preview_display_by_config(config: DisplayConfig) -> anyhow::Result<String> {
+        let start = time::Instant::now();
+        let mut picker = DisplayPicker::from_config(config)?;
+        let screenshot = picker.take_screenshot()?;
+        info!("Take Screenshot Spend: {}", start.elapsed());
+
+        anyhow::Ok(screenshot.to_webp_base64().await)
+    }
+
+    pub async fn refresh_displays(&self) -> anyhow::Result<()> {
+        // let displays = Display::all()
+        //     .map_err(|error| anyhow::anyhow!("Can not get all of displays. {}", error))?;
+        // let mut screens = self.screens.lock().await;
+        // let mut screenshots = self.screenshots.lock().await;
+        // screens.clear();
+        // info!("number of displays: {}", displays.len());
+        // for display in displays {
+        //     let height = display.height();
+        //     let width = display.width();
+        //     match Capturer::new(display) {
+        //         Ok(capturer) => screens.push(Screen::new(capturer, width, height)),
+        //         Err(error) => screens.push(Screen::new_failed(
+        //             anyhow::anyhow!("{}", error),
+        //             width,
+        //             height,
+        //         )),
+        //     };
+        //     screenshots.push(Screenshot::new(width, height));
+        // }
+
+        // screens.reverse();
+        // screenshots.reverse();
 
         Ok(())
     }
 
     pub async fn take_screenshots_for_all(&self) -> anyhow::Result<Vec<Screenshot>> {
         let mut screens = self.screens.lock().await;
-        let mut screenshots = self.screenshots.lock().await;
+        let screenshots = self.screenshots.lock().await;
         for (index, screen) in screens.iter_mut().enumerate() {
             let bitmap = screen.take().map_err(|error| {
                 anyhow::anyhow!("take screenshot for display failed. {}", error)
             })?;
-            screenshots[index].set_bitmap(bitmap).await
         }
         Ok(screenshots.to_vec())
     }

src-tauri/src/picker/mod.rs

@@ -1,4 +1,6 @@
 pub mod led_color;
 pub mod screen;
 pub mod manager;
-pub mod screenshot;
+pub mod screenshot;
+pub mod display_picker;
+pub mod config;

src-tauri/src/picker/screen.rs

@@ -1,5 +1,5 @@
-
 use scrap::Capturer;
+use std::{io::ErrorKind::WouldBlock, time::Duration, thread};
 
 pub struct Screen {
     capturer: Option<Capturer>,
@@ -29,15 +29,24 @@ impl Screen {
 
     pub fn take(&mut self) -> anyhow::Result<Vec<u8>> {
         match self.capturer.as_mut() {
-            Some(capturer) => {
-                let buffer = capturer
-                    .frame()
-                    .map_err(|error| anyhow::anyhow!("failed to frame of display. {}", error))?;
-                anyhow::Ok(buffer.to_vec())
-            }
+            Some(capturer) => loop {
+                match capturer.frame() {
+                    Ok(buffer) => {
+                        return anyhow::Ok(buffer.to_vec());
+                    }
+                    Err(error) => {
+                        if error.kind() == WouldBlock {
+                            thread::sleep(Duration::from_millis(16));
+                            continue;
+                        } else {
+                            anyhow::bail!("failed to frame of display. {}", error);
+                        }
+                    }
+                }
+            },
             None => anyhow::bail!("Do not initialized"),
         }
     }
 }
 
-unsafe impl Send for Screen {}
+unsafe impl Send for Screen {}

src-tauri/src/picker/screenshot.rs

@@ -1,126 +1,106 @@
-use color_space::{Hsv, Rgb};
-use paris::info;
-use std::sync::Arc;
-use tokio::sync::Mutex;
 
-use super::led_color::LedColor;
+use std::ops::Range;
+
+use color_space::{Hsv, Rgb};
+
+use super::{
+    config::{DisplayConfig, LedStripConfig},
+    led_color::LedColor,
+};
 
 #[derive(Clone)]
 pub struct Screenshot {
-    bitmap: Arc<Mutex<Option<Vec<u8>>>>,
-    width: usize,
-    height: usize,
-    led_number_of_x: usize,
-    led_number_of_y: usize,
+    bitmap: Vec<u8>,
+    config: DisplayConfig,
 }
 
 impl Screenshot {
-    pub fn new(width: usize, height: usize) -> Self {
-        Self {
-            bitmap: Arc::new(Mutex::new(None)),
-            led_number_of_x: 0,
-            led_number_of_y: 0,
-            width,
-            height,
-        }
+    pub fn new(bitmap: Vec<u8>, config: DisplayConfig) -> Self {
+        Self { bitmap, config }
     }
 
-    pub fn get_size(&self) -> (usize, usize) {
-        (self.width, self.height)
-    }
-
-    pub fn get_number_of_leds(&self) -> (usize, usize) {
-        (self.led_number_of_x, self.led_number_of_y)
-    }
-
-    pub fn set_number_of_leds(&mut self, led_number_of_x: usize, led_number_of_y: usize) {
-        self.led_number_of_x = led_number_of_x;
-        self.led_number_of_y = led_number_of_y;
-    }
     pub async fn get_top_colors(&self) -> anyhow::Result<Vec<LedColor>> {
-        self.get_x_colors(XPosition::Top).await
+        self.get_x_colors(XPosition::Top, self.config.top_led_strip)
+            .await
     }
     pub async fn get_bottom_colors(&self) -> anyhow::Result<Vec<LedColor>> {
-        self.get_x_colors(XPosition::Bottom).await
+        self.get_x_colors(XPosition::Bottom, self.config.bottom_led_strip)
+            .await
     }
 
-    async fn get_x_colors(&self, position: XPosition) -> anyhow::Result<Vec<LedColor>> {
-        if self.led_number_of_x == 0 {
-            return Ok(vec![]);
-        }
+    pub fn get_top_of_led_strip_range(&self) -> Range<usize> {
+        self.config.top_led_strip.global_start_position
+            ..self.config.top_led_strip.global_end_position
+    }
 
-        let bitmap = self.bitmap.lock().await;
-        match bitmap.as_ref() {
-            Some(bitmap) => {
-                let cell_size_x = self.width / self.led_number_of_x;
-                let cell_size_y = self.height / 8;
-                let cell_size = cell_size_x * cell_size_y;
-                let y_range = match position {
-                    XPosition::Top => 20..cell_size_y + 20,
-                    XPosition::Bottom => self.height - 20 - cell_size_y..self.height - 20,
-                };
-
-                let mut colors = Vec::new();
-                let stride = bitmap.len() / self.height;
-
-                for pos in 0..self.led_number_of_x {
-                    let mut r = 0.0;
-                    let mut g = 0.0;
-                    let mut b = 0.0;
-                    for x in pos * cell_size_x..(pos + 1) * cell_size_x {
-                        for y in y_range.to_owned() {
-                            let i = stride * y + 4 * x;
-                            r += bitmap[i + 2] as f64;
-                            g += bitmap[i + 1] as f64;
-                            b += bitmap[i] as f64;
-                        }
-                    }
-                    let rgb = Rgb::new(
-                        r / cell_size as f64,
-                        g / cell_size as f64,
-                        b / cell_size as f64,
-                    );
-                    let hsv = Hsv::from(rgb);
-                    // info!("HSV: {:?}", [hsv.h, hsv.s, hsv.v]);
-                    let color = LedColor::from_hsv(hsv.h, hsv.s, hsv.v);
-                    // info!("color: {:?}", color.get_rgb());
-                    colors.push(color);
-                }
-                return Ok(colors);
+    async fn get_x_colors(
+        &self,
+        position: XPosition,
+        strip_config: LedStripConfig,
+    ) -> anyhow::Result<Vec<LedColor>> {
+        let bitmap = &self.bitmap;
+        let number_of_leds = strip_config
+            .global_start_position
+            .abs_diff(strip_config.global_end_position);
+        let cell_size_x = self.config.display_width / number_of_leds;
+        let cell_size_y = self.config.display_height / 8;
+        let cell_size = cell_size_x * cell_size_y;
+        let y_range = match position {
+            XPosition::Top => 20..cell_size_y + 20,
+            XPosition::Bottom => {
+                self.config.display_height - 20 - cell_size_y..self.config.display_height - 20
             }
-            None => Ok(vec![]),
-        }
-    }
+        };
 
-    pub async fn set_bitmap(&mut self, bitmap: Vec<u8>) {
-        let mut self_bitmap = self.bitmap.lock().await;
-        *self_bitmap = Some(bitmap);
+        let mut colors = Vec::new();
+        let stride = bitmap.len() / self.config.display_height;
+
+        for pos in strip_config.global_start_position..strip_config.global_end_position {
+            let mut r = 0.0;
+            let mut g = 0.0;
+            let mut b = 0.0;
+            for x in pos * cell_size_x..(pos + 1) * cell_size_x {
+                for y in y_range.to_owned() {
+                    let i = stride * y + 4 * x;
+                    r += bitmap[i + 2] as f64;
+                    g += bitmap[i + 1] as f64;
+                    b += bitmap[i] as f64;
+                }
+            }
+            let rgb = Rgb::new(
+                r / cell_size as f64,
+                g / cell_size as f64,
+                b / cell_size as f64,
+            );
+            let hsv = Hsv::from(rgb);
+            // info!("HSV: {:?}", [hsv.h, hsv.s, hsv.v]);
+            let color = LedColor::from_hsv(hsv.h, hsv.s, hsv.v);
+            // info!("color: {:?}", color.get_rgb());
+            colors.push(color);
+        }
+        return Ok(colors);
     }
 
     pub async fn to_webp_base64(&self) -> String {
-        let bitmap = self.bitmap.lock().await;
-        match bitmap.to_owned() {
-            Some(bitmap) => {
-                let mut bitflipped = Vec::with_capacity(self.width * self.height * 3);
-                let stride = bitmap.len() / self.height;
+        let bitmap = &self.bitmap;
+        let mut bitflipped =
+            Vec::with_capacity(self.config.display_width * self.config.display_height * 3);
+        let stride = bitmap.len() / self.config.display_height;
 
-                for y in 0..self.height {
-                    for x in 0..self.width {
-                        let i = stride * y + 4 * x;
-                        bitflipped.extend_from_slice(&[bitmap[i + 2], bitmap[i + 1], bitmap[i]]);
-                    }
-                }
-
-                let webp_memory = webp::Encoder::from_rgb(
-                    bitflipped.as_slice(),
-                    self.width as u32,
-                    self.height as u32,
-                )
-                .encode(100.0);
-                return base64::encode(&*webp_memory);
+        for y in 0..self.config.display_height {
+            for x in 0..self.config.display_width {
+                let i = stride * y + 4 * x;
+                bitflipped.extend_from_slice(&[bitmap[i + 2], bitmap[i + 1], bitmap[i]]);
             }
-            None => "".to_owned(),
         }
+
+        let webp_memory = webp::Encoder::from_rgb(
+            bitflipped.as_slice(),
+            self.config.display_width as u32,
+            self.config.display_height as u32,
+        )
+        .encode(100.0);
+        return base64::encode(&*webp_memory);
     }
 }