优化bug

2025-11-15 15:42:26 +08:00
parent 1d42f6b74b
commit ff5c511eca
2 changed files with 16 additions and 0 deletions
@@ -649,11 +649,19 @@
                            }
                        }
                    }
+                    // 如果没有找到任何非透明像素，直接返回，不进行裁剪
+                    if (pix.x.length === 0 || pix.y.length === 0) {
+                        return;
+                    }
                    pix.x.sort(fn);
                    pix.y.sort(fn);
                    n = pix.x.length - 1;
                    w = pix.x[n] - pix.x[0];
                    h = pix.y[n] - pix.y[0];
+                    // 确保宽度和高度是有效的正数
+                    if (w <= 0 || h <= 0 || isNaN(w) || isNaN(h)) {
+                        return;
+                    }
                    var cut = ctx.getImageData(pix.x[0], pix.y[0], w, h);
                    canvas.width = w;
                    canvas.height = h;