1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #import "MIDIEndpoint.h" 18 19 @interface MIDIEndpoint () 20 @property (readwrite, nonatomic, assign) MIDIEndpointRef endpoint; 21 @end 22 23 @implementation MIDIEndpoint 24 - (NSString *)name { 25 CFStringRef result = CFSTR(""); 26 MIDIObjectGetStringProperty(self.endpoint, kMIDIPropertyDisplayName, &result); 27 return CFBridgingRelease(result); 28 } 29 30 - (BOOL)isOnline { 31 SInt32 result = 1; 32 MIDIObjectGetIntegerProperty(self.endpoint, kMIDIPropertyOffline, &result); 33 return (result == 0 ? YES : NO); 34 } 35 @end 36 37 @implementation MIDIDestination 38 + (NSArray *)allDestinations { 39 NSMutableArray<MIDIDestination *> *destinations = 40 [[NSMutableArray<MIDIDestination *> alloc] init]; 41 42 ItemCount destinationCount = MIDIGetNumberOfDestinations(); 43 for (ItemCount i = 0; i < destinationCount; ++i) { 44 MIDIEndpointRef endpoint = MIDIGetDestination(i); 45 if (endpoint) { 46 MIDIDestination *destination = [[MIDIDestination alloc] init]; 47 destination.endpoint = endpoint; 48 [destinations addObject:destination]; 49 } else { 50 NSLog(@"Error getting destination at index %lud, skipping.", i); 51 } 52 } 53 54 return destinations; 55 } 56 @end 57 58 @implementation MIDISource 59 + (NSArray *)allSources { 60 NSMutableArray<MIDISource *> *sources = [[NSMutableArray<MIDISource *> alloc] init]; 61 62 ItemCount sourceCount = MIDIGetNumberOfSources(); 63 for (ItemCount i = 0; i < sourceCount; ++i) { 64 MIDIEndpointRef endpoint = MIDIGetSource(i); 65 if (endpoint) { 66 MIDISource *source = [[MIDISource alloc] init]; 67 source.endpoint = endpoint; 68 [sources addObject:source]; 69 } else { 70 NSLog(@"Error getting source at index %lud, skipping.", i); 71 } 72 } 73 74 return sources; 75 } 76 @end 77
