一些小优化

utils/Common.js

@@ -462,5 +462,30 @@ export default {
 			url='https://www.pgyer.com/xhwl';
 		}
 		return {os:os,url:url};
+	},
+	
+	
+	//将点阵数据转换成RGB565
+	convertToRGB565(pixels, type) {
+		if (!type) {
+			type = 'rgb';
+		}
+		const result = new Uint16Array(pixels.length / 4);
+		let index = 0;
+		for (let i = 0; i < pixels.length; i += 4) {
+			let r = pixels[i];
+			let g = pixels[i + 1];
+			let b = pixels[i + 2];
+			let a = pixels[i + 3];
+	
+			if (type == 'bgr') {
+				result[index++] = ((b & 0xF8) << 8) | ((g & 0xFC) << 3) | (r >> 3);
+			} else {
+				result[index++] = ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
+			}
+	
+		}
+	
+		return result;
 	}
 }