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/*
SuperCollider real time audio synthesis system
Copyright (c) 2002 James McCartney. All rights reserved.
http://www.audiosynth.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <CoreAudio/AudioHardware.h>
#include "SCBase.h"
#include "VMGlobals.h"
#include "PyrKernel.h"
#include "PyrPrimitive.h"
#include "GC.h"
enum
{
OUT = 0,
IN,
BOTH
};
int listDevices(struct VMGlobals *g, int type)
{
int numDevices, num = 0;
PyrSlot *a = g->sp-2;
AudioObjectPropertyAddress propertyAddress;
propertyAddress.mSelector = kAudioHardwarePropertyDevices;
propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
propertyAddress.mElement = kAudioObjectPropertyElementMaster;
// unsigned long count;
UInt32 count;
// OSStatus err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices, &count, 0);
OSStatus err = AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &count);
AudioDeviceID *devices = (AudioDeviceID*)malloc(count);
// err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices, &count, devices);
err = AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &count, devices);
if (err!=kAudioHardwareNoError)
{
free(devices);
return 0;
}
numDevices = count / sizeof(AudioDeviceID);
int i;
if (type<BOTH)
{
if(type < IN)
{
propertyAddress.mScope = kAudioDevicePropertyScopeOutput;
} else {
propertyAddress.mScope = kAudioDevicePropertyScopeInput;
}
for (i=0; i<numDevices; i++)
{
Boolean writeable;
propertyAddress.mSelector = kAudioDevicePropertyStreams;
// err = AudioDeviceGetPropertyInfo(devices[i], 0, type, kAudioDevicePropertyStreams, &count, &writeable);
err = AudioObjectGetPropertyDataSize(devices[i], &propertyAddress, 0, NULL, &count);
if (err!=kAudioHardwareNoError)
{
free(devices);
return 0;
}
err = AudioObjectIsPropertySettable(devices[i], &propertyAddress, &writeable);
if (err!=kAudioHardwareNoError)
{
free(devices);
return 0;
}
if (!count) devices[i] = 0;
else num++;
}
}
else num = numDevices;
PyrObject* devArray = newPyrArray(g->gc, num * sizeof(PyrObject), 0, true);
SetObject(a, devArray);
int j = 0;
for (i=0; i<numDevices; i++)
{
if (!devices[i]) continue;
propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
propertyAddress.mSelector = kAudioDevicePropertyDeviceName;
// err = AudioDeviceGetPropertyInfo(devices[i], 0, false, kAudioDevicePropertyDeviceName, &count, 0);
err = AudioObjectGetPropertyDataSize(devices[i], &propertyAddress, 0, NULL, &count);
if (err != kAudioHardwareNoError)
{
break;
}
char *name = (char*)malloc(count);
// err = AudioDeviceGetProperty(devices[i], 0, false, kAudioDevicePropertyDeviceName, &count, name);
err = AudioObjectGetPropertyData(devices[i], &propertyAddress, 0, NULL, &count, name);
if (err != kAudioHardwareNoError)
{
free(name);
break;
}
PyrString *string = newPyrString(g->gc, name, 0, true);
SetObject(devArray->slots+j, string);
devArray->size++;
g->gc->GCWriteNew(devArray, (PyrObject*)string); // we know array is white so we can use GCWriteNew
free(name);
j++;
}
free(devices);
return 1;
}
int prListAudioDevices(struct VMGlobals *g, int numArgsPushed)
{
int in = 0;
int out = 0;
slotIntVal(g->sp, &out);
slotIntVal(g->sp-1, &in);
int type;
if (in && out) type = BOTH;
else if (in) type = IN;
else type = OUT;
if (listDevices(g, type)) return errNone;
return errFailed;
}
void initCoreAudioPrimitives()
{
definePrimitive(nextPrimitiveIndex(), 0, "_ListAudioDevices", prListAudioDevices, 3, 0);
}
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