native/libjsound/PLATFORM_API_MacOSX_Ports.cpp

107 void RemoveChangeListeners(PortMixer *mixer);   // forward declaration
112     PortMixer *mixer = (PortMixer *)inClientData;
133                         if (devices[j] == mixer->deviceID) {
147             err = GetAudioObjectPropertySize(mixer->deviceID, kAudioObjectPropertyScopeGlobal,
152                 err = GetAudioObjectProperty(mixer->deviceID, kAudioObjectPropertyScopeGlobal,
155                     for (PortControl *ctrl = mixer->portControls; ctrl != NULL; ctrl = ctrl->next) {
176         TRACE1("PortMixer (deviceID=0x%x) becomes invalid", (int)mixer->deviceID);
178         for (int i=0; i<mixer->deviceControlCount; i++) {
179             mixer->deviceControls[i].controlID = 0;
181         RemoveChangeListeners(mixer);
194 void AddChangeListeners(PortMixer *mixer) {
195     if (!mixer->listenersInstalled) {
197             AudioObjectAddPropertyListener(mixer->deviceID, &changeListenersAddresses[i], ChangeListenerProc, mixer);
199         mixer->listenersInstalled = true;
203 void RemoveChangeListeners(PortMixer *mixer) {
204     if (mixer->listenersInstalled) {
206             AudioObjectRemovePropertyListener(mixer->deviceID, &changeListenersAddresses[i], ChangeListenerProc, mixer);
208         mixer->listenersInstalled = false;
231     PortMixer *mixer = (PortMixer *)calloc(1, sizeof(PortMixer));
233     mixer->deviceID = deviceCache.GetDeviceID(mixerIndex);
234     if (mixer->deviceID != 0) {
235         mixer->deviceControlCount = -1; // not initialized
236         // fill mixer->ports (and mixer->portCount)
243             err = GetAudioObjectPropertySize(mixer->deviceID, scope, kAudioDevicePropertyStreams, &size);
250                 err = GetAudioObjectProperty(mixer->deviceID, scope, kAudioDevicePropertyStreams,
255                 mixer->ports[mixer->portCount].streamID = streamID;
258                 mixer->ports[mixer->portCount].streamID = 0;
260             mixer->ports[mixer->portCount].scope = scope;
261             mixer->portCount++;
265     TRACE2("<<PORT_Open (mixerIndex=%d) %p\n", mixerIndex, mixer);
266     return mixer;
272     PortMixer *mixer = (PortMixer *)id;
274     if (mixer) {
275         RemoveChangeListeners(mixer);
276         while (mixer->portControls != NULL) {
277             PortControl *control2delete = mixer->portControls;
278             mixer->portControls = control2delete->next;
285         if (mixer->deviceControls) {
286             free(mixer->deviceControls);
288         free(mixer);
290     TRACE1("<<PORT_Close %p\n", mixer);
294     PortMixer *mixer = (PortMixer *)id;
296     int result = mixer->portCount;
303     PortMixer *mixer = (PortMixer *)id;
306     if (portIndex < 0 || portIndex >= mixer->portCount) {
311     AudioObjectPropertyScope scope = mixer->ports[portIndex].scope;
312     AudioStreamID streamID = mixer->ports[portIndex].streamID;
360     PortMixer *mixer = (PortMixer *)id;
364     if (portIndex < 0 || portIndex >= mixer->portCount) {
369     AudioStreamID streamID = mixer->ports[portIndex].streamID;
383         OSStatus err = GetAudioObjectProperty(mixer->deviceID, kAudioObjectPropertyScopeGlobal,
413 static void* CreatePortControl(PortMixer *mixer, PortControlCreator *creator, PortControl::ControlType type,
443     // add the control to mixer control list;
444     control->next = mixer->portControls;
445     mixer->portControls = control;
451     PortMixer *mixer = (PortMixer *)id;
455     if (portIndex < 0 || portIndex >= mixer->portCount) {
460     PortLine *port = &(mixer->ports[portIndex]);
462     if (mixer->deviceControlCount < 0) {    // not initialized
467         err = GetAudioObjectPropertySize(mixer->deviceID, kAudioObjectPropertyScopeGlobal,
473             mixer->deviceControlCount = size / sizeof(AudioObjectID);
474             TRACE1("  PORT_GetControls: detected %d owned objects\n", mixer->deviceControlCount);
476             AudioObjectID controlIDs[mixer->deviceControlCount];
478             err = GetAudioObjectProperty(mixer->deviceID, kAudioObjectPropertyScopeGlobal,
484                 mixer->deviceControls = (AudioControl *)calloc(mixer->deviceControlCount, sizeof(AudioControl));
486                 for (int i = 0; i < mixer->deviceControlCount; i++) {
487                     AudioControl *control = &mixer->deviceControls[i];
509     if (mixer->deviceControlCount <= 0) {
514     int totalChannels = GetChannelCount(mixer->deviceID, port->scope == kAudioDevicePropertyScopeOutput ? 1 : 0);
522     for (int i=0; i<mixer->deviceControlCount; i++) {
523         AudioControl *control = &mixer->deviceControls[i];
558         masterVolume = CreatePortControl(mixer, creator, PortControl::Volume, volumeControls, 0, 1);
562             masterVolume = CreatePortControl(mixer, creator, PortControl::Volume, volumeControls, 1, totalChannels);
570         masterMute = CreatePortControl(mixer, creator, PortControl::Mute, muteControls, 0, 1);
574             masterMute = CreatePortControl(mixer, creator, PortControl::Mute, muteControls, 1, totalChannels);
584             masterBalance = CreatePortControl(mixer, creator, PortControl::Balance, volumeControls, 1, totalChannels);
614                 OSStatus err = AudioObjectGetPropertyData(mixer->deviceID, &address, 0, NULL, &size, &cfname);
628                     jControls[controlCount++] = CreatePortControl(mixer, creator, PortControl::Volume, volumeControls, ch, 1);
631                     jControls[controlCount++] = CreatePortControl(mixer, creator, PortControl::Mute, muteControls, ch, 1);
643     AddChangeListeners(mixer);