void Loudspeaker::init_from_xml(const xmlpp::Element* nodeElement){
// this node will need to establish a jack stream via the jack system, it should kill the port when done
ObjectId id = get_attribute_string(nodeElement,"id");
connectionName_ = get_attribute_string(nodeElement,"port");
port_ = new JackPort(id, JackPortIsOutput ,&SESSION());
port_->connect(connectionName_);
type_ = get_optional_attribute_string(nodeElement,"type");
pos_.x = get_optional_attribute_float(nodeElement,"x");
pos_.y = get_optional_attribute_float(nodeElement,"y");
pos_.z = get_optional_attribute_float(nodeElement,"z");
az_ = get_optional_attribute_float(nodeElement,"az");
el_ = get_optional_attribute_float(nodeElement,"el");
gain_ = get_optional_attribute_float(nodeElement,"gain",1.0);
std::cout << "Loudspeaker " << id << " type=" << type_ << std::endl;
jack_nframes_t s = SESSION().get_buffer_size();
buffer_.allocate(s);
// register the buffer
BufferRef ref;
std::stringstream str;
str << "bus." << id;
ref.id = str.str();
ref.isAlias = false;
ref.isBus = true;
ref.creator = id;
ref.buffer = &buffer_;
SESSION().register_buffer(ref);
DynamicObject::init_from_xml(nodeElement);
}
Behaviour* ResoundSession::create_behaviour_from_node(const xmlpp::Node* node){
assert(node);
const xmlpp::Element* nodeElement = get_element(node);
ObjectId id = get_attribute_string(nodeElement,"id");
std::string factoryName = get_attribute_string(nodeElement,"class");
BehaviourFactoryMap::iterator it = behaviourFactories_.find(factoryName);
if(it != behaviourFactories_.end()){
Behaviour* p = (it->second)(); // implicity registers the dynamic object
return p;
} else {
throw Exception("factory not found");
}
}
void DynamicObject::init_from_xml(const xmlpp::Element* nodeElement){
assert(nodeElement);
std::string name = nodeElement->get_name();
id_ = get_attribute_string(nodeElement,"id");
// attempt to register
SESSION().register_dynamic_object(id_, this);
}
void AliasSet::init_from_xml(const xmlpp::Element* nodeElement){
ObjectId id = get_attribute_string(nodeElement,"id");
// look for aliases
xmlpp::Node::NodeList nodes;
nodes = nodeElement->get_children();
xmlpp::Node::NodeList::iterator it;
for(it = nodes.begin(); it != nodes.end(); ++it){
const xmlpp::Element* child = dynamic_cast<const xmlpp::Element*>(*it);
if(child){
std::string name = child->get_name();
if(name=="alias"){
Alias* alias = new Alias(child,id);
ObjectId id = alias->get_id();
AliasMap::iterator it = aliases_.find(id);
if(it == aliases_.end()){
aliases_[id] = alias;
std::cout << "Alias found " << id << std::endl;
} else {
throw Exception("non-unique name for alias within AliasSet");
}
}
}
}
// for( AliasMap::iterator it = aliases_.begin(); it != aliases_.end(); ++it){ }
DynamicObject::init_from_xml(nodeElement);
}
Alias::Alias(const xmlpp::Node* node, ObjectId parent){
const xmlpp::Element* nodeElement = get_element(node);
id_= get_attribute_string(nodeElement,"id");
ref_= get_attribute_string(nodeElement,"ref");
BufferRefVector v = SESSION().lookup_buffer(ref_);
if(v.size() == 1){
BufferRef bref = v[0];
bref.id = parent + std::string(".") + id_;
bref.isAlias = true;
bref.creator = parent ;
SESSION().register_buffer(bref);
} else {
throw Exception("Alias could not find a reference to the buffer requested.");
}
}
float xml_data_node::get_attribute_float(const char *attribute, float defvalue) const
{
char const *const string = get_attribute_string(attribute, nullptr);
float value;
if (string == nullptr || sscanf(string, "%f", &value) != 1)
return defvalue;
return value;
}
xml_data_node::int_format xml_data_node::get_attribute_int_format(const char *attribute) const
{
char const *const string = get_attribute_string(attribute, nullptr);
if (!string)
return int_format::DECIMAL;
else if (string[0] == '$')
return int_format::HEX_DOLLAR;
else if (string[0] == '0' && string[1] == 'x')
return int_format::HEX_C;
if (string[0] == '#')
return int_format::DECIMAL_HASH;
else
return int_format::DECIMAL;
}
int xml_data_node::get_attribute_int(const char *attribute, int defvalue) const
{
char const *const string = get_attribute_string(attribute, nullptr);
int value;
unsigned int uvalue;
if (string == nullptr)
return defvalue;
if (string[0] == '$')
return (sscanf(&string[1], "%X", &uvalue) == 1) ? uvalue : defvalue;
if (string[0] == '0' && string[1] == 'x')
return (sscanf(&string[2], "%X", &uvalue) == 1) ? uvalue : defvalue;
if (string[0] == '#')
return (sscanf(&string[1], "%d", &value) == 1) ? value : defvalue;
return (sscanf(&string[0], "%d", &value) == 1) ? value : defvalue;
}
