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code from QJC for CoreAudio device enumeration

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git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@2307 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Paul Davis 2007-08-15 18:30:02 +00:00
parent 8b290ad742
commit f810616e1d
1 changed files with 70 additions and 4 deletions
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74
gtk2_ardour/engine_dialog.cc
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@ -4,6 +4,11 @@
#include <glibmm.h>
#ifdef __APPLE__
#include <CoreAudio/CoreAudio.h>
#include <CoreFoundation/CFString.h>
#endif __APPLE__
#include <ardour/profile.h>
#include <jack/jack.h>
@ -76,7 +81,7 @@ EngineControl::EngineControl ()
basic_packer.set_spacings (6);
strings.clear ();
#ifndef __APPLE
#ifndef __APPLE__
strings.push_back (X_("ALSA"));
strings.push_back (X_("OSS"));
strings.push_back (X_("FFADO"));
@ -166,7 +171,7 @@ EngineControl::EngineControl ()
realtime_button.signal_toggled().connect (mem_fun (*this, &EngineControl::realtime_changed));
realtime_changed ();
#ifndef __APPLE
#ifndef __APPLE__
options_packer.attach (no_memory_lock_button, 0, 1, 2, 3, FILL|EXPAND, (AttachOptions) 0);
options_packer.attach (unlock_memory_button, 0, 1, 3, 4, FILL|EXPAND, (AttachOptions) 0);
options_packer.attach (soft_mode_button, 0, 1, 4, 5, FILL|EXPAND, (AttachOptions) 0);
@ -460,7 +465,7 @@ EngineControl::enumerate_devices ()
{
/* note: case matters for the map keys */
#ifdef __APPLE
#ifdef __APPLE__
devices["CoreAudio"] = enumerate_coreaudio_devices ();
#else
devices["ALSA"] = enumerate_alsa_devices ();
@ -471,11 +476,72 @@ EngineControl::enumerate_devices ()
#endif
}
#ifdef __APPLE
#ifdef __APPLE__
vector<string>
EngineControl::enumerate_coreaudio_devices ()
{
vector<string> devs;
// Find out how many Core Audio devices are there, if any...
// (code snippet gently "borrowed" from St?hane Letz jackdmp;)
OSStatus err;
bool isWritable;
size_t outSize = sizeof(isWritable);
err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices,
&outSize, &isWritable);
if (err == noErr) {
// Calculate the number of device available...
int numCoreDevices = outSize / sizeof(AudioDeviceID);
// Make space for the devices we are about to get...
AudioDeviceID *coreDeviceIDs = new AudioDeviceID [numCoreDevices];
err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices,
&outSize, (void *) coreDeviceIDs);
if (err == noErr) {
// Look for the CoreAudio device name...
char coreDeviceName[256];
size_t nameSize = sizeof (coreDeviceName);
for (int i = 0; i < numCoreDevices; i++) {
err = AudioDeviceGetPropertyInfo(coreDeviceIDs[i],
0, true, kAudioDevicePropertyDeviceName,
&outSize, &isWritable);
if (err == noErr) {
err = AudioDeviceGetProperty(coreDeviceIDs[i],
0, true, kAudioDevicePropertyDeviceName,
&nameSize, (void *) coreDeviceName);
if (err == noErr) {
char drivername[128];
// this returns the unique id for the device
// that must be used on the commandline for jack
if (getDeviceUIDFromID(coreDeviceIDs[i], drivername, sizeof (drivername)) == noErr) {
sName = drivername;
} else {
sName = "Error";
}
devs.push_back (sName);
#if 0
coreaudioIdMap[sName] = coreDeviceIDs[i];
// TODO: hide this ugly ID from the user,
// only show human readable name
// humanreadable \t UID
sText = QString(coreDeviceName) + '\t' + sName;
pAction = menu.addAction(sText);
pAction->setCheckable(true);
pAction->setChecked(sCurName == sName);
++iCards;
#endif
}
}
}
}
delete [] coreDeviceIDs;
}
return devs;
}
#else