✨ feat(main): 使用 `crossbeam` 库优化图像处理流程，提升性能

Cargo.lock

@@ -183,6 +183,19 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "crossbeam"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1137cd7e7fc0fb5d3c5a8678be38ec56e819125d8d7907411fe24ccb943faca8"
+dependencies = [
+ "crossbeam-channel",
+ "crossbeam-deque",
+ "crossbeam-epoch",
+ "crossbeam-queue",
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.13"
@@ -211,6 +224,15 @@ dependencies = [
  "crossbeam-utils",
 ]
 
+[[package]]
+name = "crossbeam-queue"
+version = "0.3.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df0346b5d5e76ac2fe4e327c5fd1118d6be7c51dfb18f9b7922923f287471e35"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-utils"
 version = "0.8.20"
@@ -772,6 +794,8 @@ dependencies = [
 name = "rust_v4l2"
 version = "0.1.0"
 dependencies = [
+ "crossbeam",
+ "crossbeam-channel",
  "fltk",
  "image",
  "rscam",

Cargo.toml

@@ -4,6 +4,8 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+crossbeam = "0.8.4"
+crossbeam-channel = "0.5.13"
 fltk = "1.4.36"
 image = "0.25.5"
 rscam = "0.5.5"

src/main.rs

@@ -46,8 +46,8 @@ fn main() {
             eprint!("Open Camera Error:{}", e)
         }
     }
-    let mut w = 0 as i32;
+    let mut w = 0;
-    let mut h = 0 as i32;
+    let mut h = 0;
     if camera_open {
         loop {
             // 捕获一帧图像
@@ -61,23 +61,31 @@ fn main() {
                         w = l_data.width() as i32;
                         h = l_data.height() as i32;
                     }
-                    for tmp_x in 0..30 {
+                    crossbeam::scope(|_| {
-                        for tmp_y in 0..60 {
+                        for tmp_x in 0..30 {
-                            rgb_data.put_pixel(tmp_x, tmp_y, Rgb([102, 204, 255]));
+                            for tmp_y in 0..60 {
+                                rgb_data.put_pixel(tmp_x, tmp_y, Rgb([102, 204, 255]));
+                            }
                         }
-                    }
+                        let fltk_rgb_image =
-                    let fltk_l_image =
+                            RgbImage::new(rgb_data.as_raw(), w, h, ColorDepth::Rgb8).unwrap();
-                        RgbImage::new(l_data.as_raw(), w, h, ColorDepth::L8).unwrap();
+                        color_frame.set_image(Some(fltk_rgb_image));
-                    let fltk_rgb_image =
+                        color_frame.set_size(w, h);
-                        RgbImage::new(rgb_data.as_raw(), w, h, ColorDepth::Rgb8).unwrap();
+                        color_frame.redraw();
-                    camera_frame.set_image(Some(fltk_l_image));
+                        let duration = start.elapsed();
-                    color_frame.set_image(Some(fltk_rgb_image));
+                        println!("L8 Frame Draw use time: {:?}", duration);
-                    // 通过重新调整尺寸从而刷新图像
+                    })
-                    color_frame.set_size(w, h);
+                    .unwrap();
-                    camera_frame.redraw();
+                    crossbeam::scope(|_| {
-                    color_frame.redraw();
+                        let fltk_l_image =
-                    let duration = start.elapsed();
+                            RgbImage::new(l_data.as_raw(), w, h, ColorDepth::L8).unwrap();
-                    println!("Time elapsed in DrawImage is: {:?}", duration);
+                        camera_frame.set_image(Some(fltk_l_image));
+                        // 通过重新调整尺寸从而刷新图像
+                        camera_frame.redraw();
+                        let duration = start.elapsed();
+                        println!("RGB8 Frame Draw use time: {:?}", duration);
+                    })
+                    .unwrap();
                 }
                 Err(e) => {
                     eprintln!("捕获错误: {}", e);