✨ feat(main): 优化图像处理逻辑

src/main.rs

@@ -3,6 +3,7 @@ use fltk::{
     app::App,
     enums::ColorDepth,
     frame::Frame,
+    image::RgbImage,
     prelude::{GroupExt, WidgetBase, WidgetExt},
     window::Window,
 };
@@ -32,6 +33,8 @@ 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
@@ -39,14 +42,12 @@ fn main() {
                 Ok(data) => {
                     let img = image::load_from_memory(&data).unwrap();
                     let rgb_data = img.to_rgb8();
-
-                    let fltk_image = fltk::image::RgbImage::new(
-                        &rgb_data.as_raw(),
-                        rgb_data.width() as i32,
-                        rgb_data.height() as i32,
-                        ColorDepth::Rgb8,
-                    )
-                    .unwrap();
+                    if w == 0 {
+                        w = rgb_data.width() as i32;
+                        h = rgb_data.height() as i32;
+                    }
+                    let fltk_image =
+                        RgbImage::new(&rgb_data.as_raw(), w, h, ColorDepth::Rgb8).unwrap();
                     frame.set_image(Some(fltk_image));
                     frame.redraw();
                 }