func NewSource(client Client, name string) (source Source, err error) {
var endpointRef C.MIDIEndpointRef
stringToCFString(name, func(cfName C.CFStringRef) {
osStatus := C.MIDISourceCreate(client.client, cfName, &endpointRef)
if osStatus != C.noErr {
err = errors.New(fmt.Sprintf("%d: failed to create a source", int(osStatus)))
} else {
source = Source{endpointRef, &Object{C.MIDIObjectRef(endpointRef)}}
}
})
return
}
func (entity Entity) Destinations() (destinations []Destination, err error) {
numberOfDestinations := int(C.ItemCount(C.MIDIEntityGetNumberOfDestinations(entity.entity)))
destinations = make([]Destination, numberOfDestinations)
for i := range destinations {
destination := C.MIDIEntityGetDestination(entity.entity, C.ItemCount(i))
if destination == (C.MIDIEndpointRef)(0) {
err = errors.New("failed to get destination")
return
}
destinations[i] = Destination{destination, &Object{C.MIDIObjectRef(destination)}}
}
return
}
func (device Device) Entities() (entities []Entity, err error) {
numberOfEntitiles := int(C.ItemCount(C.MIDIDeviceGetNumberOfEntities(device.device)))
entities = make([]Entity, numberOfEntitiles)
for i := range entities {
entity := C.MIDIDeviceGetEntity(device.device, C.ItemCount(i))
if entity == (C.MIDIEntityRef)(0) {
err = errors.New("failed to get entity")
return
}
entities[i] = Entity{entity, &Object{C.MIDIObjectRef(entity)}}
}
return
}
func (entity Entity) Sources() (sources []Source, err error) {
numberOfSources := int(C.ItemCount(C.MIDIEntityGetNumberOfSources(entity.entity)))
sources = make([]Source, numberOfSources)
for i := range sources {
source := C.MIDIEntityGetSource(entity.entity, C.ItemCount(i))
if source == (C.MIDIEndpointRef)(0) {
err = errors.New("failed to get source")
return
}
sources[i] = Source{source, &Object{C.MIDIObjectRef(source)}}
}
return
}
func AllDevices() (devices []Device, err error) {
numberOfDevices := numberOfDevices()
devices = make([]Device, numberOfDevices)
for i := range devices {
device := C.MIDIGetDevice(C.ItemCount(i))
if device == (C.MIDIDeviceRef)(0) {
err = errors.New("failed to get device")
return
}
devices[i] = Device{
device,
&Object{C.MIDIObjectRef(device)}}
}
return
}