release

lib/webserver/setup-ui/data/build/stringConverter.js

@@ -0,0 +1,48 @@
+var stringConverter = {
+  convertByte: function (oneByte, bytesPerPixel) {
+    var stringByte = '0x' + oneByte.toString(16).padStart(bytesPerPixel * 2, '0');
+    return stringByte;
+  },
+  convert: function (dataLength, bytesPerPixel, multiLine, colNumber, data) {
+    var resultString = '';
+    for (var i = 0; i < dataLength; i++) {
+      var stringByte = '';
+      // need to use bigint, so we can use 32bit integers (4byte per pixel)
+      let combinedByte = BigInt("0b00000000000000000000000000000000");
+      for (let j = 0; j < bytesPerPixel; j++) {
+        let pixelByte = BigInt(data[(i * bytesPerPixel) + j]);
+        if (j != 0) {
+          combinedByte = combinedByte << BigInt(8);
+        }
+        combinedByte = combinedByte | pixelByte;
+      }
+      stringByte = this.convertByte(combinedByte, bytesPerPixel) + ', ';
+      if (multiLine && ((i + 1) % colNumber == 0)) {
+        stringByte += '\n  ';
+      }
+      resultString += stringByte;
+    }
+    resultString = resultString.substr(0, resultString.lastIndexOf(',')).trim();
+    // add the array definition
+    return resultString;
+  }
+};
+
+
+module.exports = {
+
+  toString : function(data, colNum) {
+    console.log('Converting data to string');
+
+    var dataLength = data.byteLength;
+    console.log('actualDataLength: ' + dataLength);
+
+    var resultString = '#define SETUP_HTML_SIZE ';
+    resultString += dataLength + '\n'
+    resultString += 'const char SETUP_HTML[] PROGMEM = {\n  ';
+    resultString += stringConverter.convert(dataLength, 1, true, 16, data);
+    resultString += '\n};';
+    return resultString;
+  }
+
+}