Use actual image dimensions

diff --git a/src/main.rs b/src/main.rs
index 9d1bd4496d5b6a7d87329c2929a62b2c1d03d610..68a40341e989cbdd76e01bd5745d0e40471ad8fc 100644 (file)
--- a/src/main.rs
+++ b/src/main.rs
@@ -187,14 +187,14 @@ async fn img_pgen0(req: HttpRequest, canvas0: web::Data<Arc<Mutex<Option<Canvas>
     let data = req.uri().path().split("/").skip(3).next().unwrap();
     let mut cursor = Cursor::new(Vec::new());
     let scale = 16;
-    let tdim_x = 32 * scale;
-    let tdim_y = 32 * scale;
     let img: RgbImage = {
         let canvas_option = &mut *canvas0.lock().unwrap();
         let canvas = canvas_option.take().ok_or(CanvasError::NotExists)?;
         let canvas = rgb_encode_to_canvas(canvas, percent_decode_str(&data).into_iter().borrow_mut())?;
         canvas_option.insert(canvas).img.clone()
     };
+    let (tdim_x, tdim_y) = img.dimensions();
+    let (tdim_x, tdim_y) = (tdim_x * scale, tdim_y * scale);
     let img = resize(&img, tdim_x, tdim_y, FilterType::Nearest);
     to_imageresult(write_buffer_with_format(&mut cursor, &img, tdim_x, tdim_y, ColorType::Rgb8, Png))?;
     Ok(HttpResponse::build(StatusCode::OK)