Extract Manchester decoder, formatter.

firmware/application/ui_receiver.cpp

@@ -497,81 +497,6 @@ ReceiverView::~ReceiverView() {
 	receiver_model.disable();
 }
 
-class ManchesterDecoder {
-public:
-	struct DecodedSymbol {
-		uint_fast8_t value;
-		uint_fast8_t error;
-	};
-
-	constexpr ManchesterDecoder(
-		const std::bitset<1024>& encoded,
-		const size_t count,
-		const size_t sense = 0
-	) : encoded { encoded },
-		count { count },
-		sense { sense }
-	{
-	}
-
-	DecodedSymbol operator[](const size_t index) const {
-		const size_t encoded_index = index * 2;
-		if( (encoded_index + 1) < count ) {
-			const auto value = encoded[encoded_index + sense];
-			const auto error = encoded[encoded_index + 0] == encoded[encoded_index + 1];
-			return { value, error };
-		} else {
-			return { 0, 1 };
-		}
-	}
-
-	size_t symbols_count() const {
-		return count / 2;
-	}
-
-private:
-	const std::bitset<1024>& encoded;
-	const size_t count;
-	const size_t sense;
-};
-
-struct ManchesterFormatted {
-	const std::string data;
-	const std::string errors;
-};
-
-static ManchesterFormatted format_manchester(
-	const ManchesterDecoder& decoder
-) {
-	const size_t payload_length_decoded = decoder.symbols_count();
-	const size_t payload_length_hex_characters = (payload_length_decoded + 3) / 4;
-	const size_t payload_length_symbols_rounded = payload_length_hex_characters * 4;
-
-	std::string hex_data;
-	std::string hex_error;
-	hex_data.reserve(payload_length_hex_characters);
-	hex_error.reserve(payload_length_hex_characters);
-
-	uint_fast8_t data = 0;
-	uint_fast8_t error = 0;
-	for(size_t i=0; i<payload_length_symbols_rounded; i++) {
-		const auto symbol = decoder[i];
-
-		data <<= 1;
-		data |= symbol.value;
-
-		error <<= 1;
-		error |= symbol.error;
-
-		if( (i & 3) == 3 ) {
-			hex_data += to_string_hex(data & 0xf, 1);
-			hex_error += to_string_hex(error & 0xf, 1);
-		}
-	}
-
-	return { hex_data, hex_error };
-}
-
 class AnalogAudioModel {
 public:
 	AnalogAudioModel(ReceiverModel::Mode mode) {