Big-endian support (#909)

ZAPDTR/ZAPDUtils/Utils/BinaryWriter.cpp

@@ -10,6 +10,11 @@ BinaryWriter::BinaryWriter(std::shared_ptr<Stream> nStream)
 	stream = nStream;
 }
 
+void BinaryWriter::SetEndianness(Endianness endianness)
+{
+	this->endianness = endianness;
+}
+
 void BinaryWriter::Close()
 {
 	stream->Close();
@@ -47,16 +52,25 @@ void BinaryWriter::Write(uint8_t value)
 
 void BinaryWriter::Write(int16_t value)
 {
+	if (endianness != Endianness::Native)
+		value = BSWAP16(value);
+
 	stream->Write((char*)&value, sizeof(int16_t));
 }
 
 void BinaryWriter::Write(uint16_t value)
 {
+	if (endianness != Endianness::Native)
+		value = BSWAP16(value);
+
 	stream->Write((char*)&value, sizeof(uint16_t));
 }
 
 void BinaryWriter::Write(int32_t value)
 {
+	if (endianness != Endianness::Native)
+		value = BSWAP32(value);
+
 	stream->Write((char*)&value, sizeof(int32_t));
 }
 
@@ -68,33 +82,48 @@ void BinaryWriter::Write(int32_t valueA, int32_t valueB)
 
 void BinaryWriter::Write(uint32_t value)
 {
+	if (endianness != Endianness::Native)
+		value = BSWAP32(value);
+
 	stream->Write((char*)&value, sizeof(uint32_t));
 }
 
 void BinaryWriter::Write(int64_t value)
 {
+	if (endianness != Endianness::Native)
+		value = BSWAP64(value);
+
 	stream->Write((char*)&value, sizeof(int64_t));
 }
 
 void BinaryWriter::Write(uint64_t value)
 {
+	if (endianness != Endianness::Native)
+		value = BSWAP64(value);
+
 	stream->Write((char*)&value, sizeof(uint64_t));
 }
 
 void BinaryWriter::Write(float value)
 {
+	if (endianness != Endianness::Native)
+		value = BitConverter::ToFloatBE((uint8_t*)&value, 0);
+
 	stream->Write((char*)&value, sizeof(float));
 }
 
 void BinaryWriter::Write(double value)
 {
+	if (endianness != Endianness::Native)
+		value = BitConverter::ToDoubleBE((uint8_t*)&value, 0);
+
 	stream->Write((char*)&value, sizeof(double));
 }
 
 void BinaryWriter::Write(const std::string& str)
 {
 	int strLen = str.size();
-	stream->Write((char*)&strLen, sizeof(int));
+	Write(strLen);
 
 	for (char c : str)
 		stream->WriteByte(c);