✨ feat(main): 添加时间测量功能

src/main.rs

@@ -1,8 +1,11 @@
 extern crate rscam;
+use std::time::Instant;
+
 use fltk::{
     app::App,
     enums::ColorDepth,
     frame::Frame,
+    image::RgbImage,
     prelude::{GroupExt, WidgetBase, WidgetExt},
     window::Window,
 };
@@ -22,8 +25,8 @@ fn main() {
     // 配置摄像头参数
     match camera.start(&Config {
         // use command 'v4l2-ctl --list-formats-ext' see more...
-        interval: (1, 30),      // 设置帧率为 30fps
+        interval: (1, 210),     // 设置帧率为 30fps
-        resolution: (640, 480), // 设置分辨率为 640x480
+        resolution: (640, 400), // 设置分辨率为 640x480
         format: b"MJPG",        // 设置图像格式为 MJPG
         ..Default::default()
     }) {
@@ -32,23 +35,26 @@ fn main() {
             eprint!("Open Camera Error:{}", e)
         }
     }
+    let mut w = 0 as i32;
+    let mut h = 0 as i32;
     if camera_open {
         loop {
             // 捕获一帧图像
             match camera.capture() {
                 Ok(data) => {
+                    let start = Instant::now();
                     let img = image::load_from_memory(&data).unwrap();
                     let rgb_data = img.to_rgb8();
-
+                    if w == 0 {
-                    let fltk_image = fltk::image::RgbImage::new(
+                        w = rgb_data.width() as i32;
-                        &rgb_data.as_raw(),
+                        h = rgb_data.height() as i32;
-                        rgb_data.width() as i32,
+                    }
-                        rgb_data.height() as i32,
+                    let fltk_image =
-                        ColorDepth::Rgb8,
+                        RgbImage::new(&rgb_data.as_raw(), w, h, ColorDepth::Rgb8).unwrap();
-                    )
-                    .unwrap();
                     frame.set_image(Some(fltk_image));
                     frame.redraw();
+                    let duration = start.elapsed();
+                    println!("Time elapsed in DrawImage is: {:?}", duration);
                 }
                 Err(e) => {
                     eprintln!("捕获错误: {}", e);

src/window.glade

@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<interface>
-  <requires lib="gtk+" version="3.0"/>
-  <object class="GtkWindow" id="window">
-    <property name="title">摄像头视频流</property>
-    <property name="default-width">640</property>
-    <property name="default-height">480</property>
-    <child>
-      <object class="GtkImage" id="image"/>
-    </child>
-  </object>
-</interface>
-