osc multi arguments

apps/LoopThroughWithOpenGLCompositing/OscServer.cpp

@@ -42,6 +42,7 @@ std::vector<std::string> SplitAddress(const std::string& address)
 	}
 	return parts;
 }
+
 }
 
 OscServer::OscServer()
@@ -147,55 +148,35 @@ bool OscServer::DecodeMessage(const char* data, int byteCount, OscMessage& messa
 		return false;
 	}
 
-	const char valueType = typeTags[1];
-	if (valueType == 'f')
+	std::vector<std::string> values;
+	for (std::size_t index = 1; index < typeTags.size(); ++index)
 	{
-		double value = 0.0;
-		if (!ReadFloat32(data, byteCount, offset, value))
+		std::string valueJson;
+		if (!DecodeArgument(data, byteCount, offset, typeTags[index], valueJson))
+		{
+			error = "Unsupported or malformed OSC value type.";
 			return false;
-		std::ostringstream stream;
-		stream << std::setprecision(9) << value;
-		message.valueJson = stream.str();
-		return true;
+		}
+		values.push_back(valueJson);
 	}
 
-	if (valueType == 'd')
+	if (values.size() == 1)
 	{
-		double value = 0.0;
-		if (!ReadFloat64(data, byteCount, offset, value))
-			return false;
-		std::ostringstream stream;
-		stream << std::setprecision(17) << value;
-		message.valueJson = stream.str();
+		message.valueJson = values.front();
 		return true;
 	}
 
-	if (valueType == 'i')
+	std::ostringstream arrayJson;
+	arrayJson << "[";
+	for (std::size_t index = 0; index < values.size(); ++index)
 	{
-		int value = 0;
-		if (!ReadInt32(data, byteCount, offset, value))
-			return false;
-		message.valueJson = std::to_string(value);
-		return true;
+		if (index > 0)
+			arrayJson << ",";
+		arrayJson << values[index];
 	}
-
-	if (valueType == 's')
-	{
-		std::string value;
-		if (!ReadPaddedString(data, byteCount, offset, value))
-			return false;
-		message.valueJson = BuildJsonString(value);
-		return true;
-	}
-
-	if (valueType == 'T' || valueType == 'F')
-	{
-		message.valueJson = valueType == 'T' ? "true" : "false";
-		return true;
-	}
-
-	error = "Unsupported OSC value type.";
-	return false;
+	arrayJson << "]";
+	message.valueJson = arrayJson.str();
+	return true;
 }
 
 bool OscServer::DispatchMessage(const OscMessage& message, std::string& error) const
@@ -211,6 +192,57 @@ bool OscServer::DispatchMessage(const OscMessage& message, std::string& error) c
 		mCallbacks.updateParameter(parts[1], parts[2], message.valueJson, error);
 }
 
+bool OscServer::DecodeArgument(const char* data, int byteCount, int& offset, char valueType, std::string& valueJson)
+{
+	if (valueType == 'f')
+	{
+		double value = 0.0;
+		if (!ReadFloat32(data, byteCount, offset, value))
+			return false;
+		std::ostringstream stream;
+		stream << std::setprecision(9) << value;
+		valueJson = stream.str();
+		return true;
+	}
+
+	if (valueType == 'd')
+	{
+		double value = 0.0;
+		if (!ReadFloat64(data, byteCount, offset, value))
+			return false;
+		std::ostringstream stream;
+		stream << std::setprecision(17) << value;
+		valueJson = stream.str();
+		return true;
+	}
+
+	if (valueType == 'i')
+	{
+		int value = 0;
+		if (!ReadInt32(data, byteCount, offset, value))
+			return false;
+		valueJson = std::to_string(value);
+		return true;
+	}
+
+	if (valueType == 's')
+	{
+		std::string value;
+		if (!ReadPaddedString(data, byteCount, offset, value))
+			return false;
+		valueJson = BuildJsonString(value);
+		return true;
+	}
+
+	if (valueType == 'T' || valueType == 'F')
+	{
+		valueJson = valueType == 'T' ? "true" : "false";
+		return true;
+	}
+
+	return false;
+}
+
 bool OscServer::ReadPaddedString(const char* data, int byteCount, int& offset, std::string& value)
 {
 	if (offset < 0 || offset >= byteCount)