1 files changed, 181 insertions, 0 deletions
diff --git a/libs/appleutility/CoreAudio/PublicUtility/CAHALAudioSystemObject.cpp b/libs/appleutility/CoreAudio/PublicUtility/CAHALAudioSystemObject.cpp
new file mode 100644
index 0000000000..404dd98498
--- /dev/null
+++ b/libs/appleutility/CoreAudio/PublicUtility/CAHALAudioSystemObject.cpp
@@ -0,0 +1,181 @@
+/*
+     File: CAHALAudioSystemObject.cpp
+ Abstract: CAHALAudioSystemObject.h
+  Version: 1.1
+ 
+ Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
+ Inc. ("Apple") in consideration of your agreement to the following
+ terms, and your use, installation, modification or redistribution of
+ this Apple software constitutes acceptance of these terms.  If you do
+ not agree with these terms, please do not use, install, modify or
+ redistribute this Apple software.
+ 
+ In consideration of your agreement to abide by the following terms, and
+ subject to these terms, Apple grants you a personal, non-exclusive
+ license, under Apple's copyrights in this original Apple software (the
+ "Apple Software"), to use, reproduce, modify and redistribute the Apple
+ Software, with or without modifications, in source and/or binary forms;
+ provided that if you redistribute the Apple Software in its entirety and
+ without modifications, you must retain this notice and the following
+ text and disclaimers in all such redistributions of the Apple Software.
+ Neither the name, trademarks, service marks or logos of Apple Inc. may
+ be used to endorse or promote products derived from the Apple Software
+ without specific prior written permission from Apple.  Except as
+ expressly stated in this notice, no other rights or licenses, express or
+ implied, are granted by Apple herein, including but not limited to any
+ patent rights that may be infringed by your derivative works or by other
+ works in which the Apple Software may be incorporated.
+ 
+ The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
+ MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
+ THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
+ FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
+ OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+ 
+ IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
+ MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
+ AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
+ STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+ 
+ Copyright (C) 2014 Apple Inc. All Rights Reserved.
+ 
+*/
+//==================================================================================================
+//	Includes
+//==================================================================================================
+
+//	Self Include
+#include "CAHALAudioSystemObject.h"
+
+//	PublicUtility Includes
+#include "CAAutoDisposer.h"
+#include "CACFString.h"
+#include "CAHALAudioDevice.h"
+#include "CAPropertyAddress.h"
+
+//==================================================================================================
+//	CAHALAudioSystemObject
+//==================================================================================================
+
+CAHALAudioSystemObject::CAHALAudioSystemObject()
+:
+	CAHALAudioObject(kAudioObjectSystemObject)
+{
+}
+
+CAHALAudioSystemObject::~CAHALAudioSystemObject()
+{
+}
+
+UInt32	CAHALAudioSystemObject::GetNumberAudioDevices() const
+{
+	CAPropertyAddress theAddress(kAudioHardwarePropertyDevices);
+	UInt32 theAnswer = GetPropertyDataSize(theAddress, 0, NULL);
+	theAnswer /= SizeOf32(AudioObjectID);
+	return theAnswer;
+}
+
+void	CAHALAudioSystemObject::GetAudioDevices(UInt32& ioNumberAudioDevices, AudioObjectID* outAudioDevices) const
+{
+	CAPropertyAddress theAddress(kAudioHardwarePropertyDevices);
+	UInt32 theSize = ioNumberAudioDevices * SizeOf32(AudioObjectID);
+	GetPropertyData(theAddress, 0, NULL, theSize, outAudioDevices);
+	ioNumberAudioDevices = theSize / SizeOf32(AudioObjectID);
+}
+
+AudioObjectID	CAHALAudioSystemObject::GetAudioDeviceAtIndex(UInt32 inIndex) const
+{
+	AudioObjectID theAnswer = kAudioObjectUnknown;
+	UInt32 theNumberDevices = GetNumberAudioDevices();
+	if((theNumberDevices > 0) && (inIndex < theNumberDevices))
+	{
+		CAAutoArrayDelete<AudioObjectID> theDeviceList(theNumberDevices);
+		GetAudioDevices(theNumberDevices, theDeviceList);
+		if((theNumberDevices > 0) && (inIndex < theNumberDevices))
+		{
+			theAnswer = theDeviceList[inIndex];
+		}
+	}
+	return theAnswer;
+}
+
+AudioObjectID	CAHALAudioSystemObject::GetAudioDeviceForUID(CFStringRef inUID) const
+{
+	AudioObjectID theAnswer = kAudioObjectUnknown;
+	AudioValueTranslation theValue = { &inUID, sizeof(CFStringRef), &theAnswer, sizeof(AudioObjectID) };
+	CAPropertyAddress theAddress(kAudioHardwarePropertyDeviceForUID);
+	UInt32 theSize = sizeof(AudioValueTranslation);
+	GetPropertyData(theAddress, 0, NULL, theSize, &theValue);
+	return theAnswer;
+}
+
+void	CAHALAudioSystemObject::LogBasicDeviceInfo()
+{
+	UInt32 theNumberDevices = GetNumberAudioDevices();
+	CAAutoArrayDelete<AudioObjectID> theDeviceList(theNumberDevices);
+	GetAudioDevices(theNumberDevices, theDeviceList);
+	DebugMessageN1("CAHALAudioSystemObject::LogBasicDeviceInfo: %d devices", (int)theNumberDevices);
+	for(UInt32 theDeviceIndex = 0; theDeviceIndex < theNumberDevices; ++theDeviceIndex)
+	{
+		char theCString[256];
+		UInt32 theCStringSize = sizeof(theCString);
+		DebugMessageN1("CAHALAudioSystemObject::LogBasicDeviceInfo: Device %d", (int)theDeviceIndex);
+		
+		CAHALAudioDevice theDevice(theDeviceList[theDeviceIndex]);
+		DebugMessageN1("CAHALAudioSystemObject::LogBasicDeviceInfo:   Object ID: %d", (int)theDeviceList[theDeviceIndex]);
+		
+		CACFString theDeviceName(theDevice.CopyName());
+		theCStringSize = sizeof(theCString);
+		theDeviceName.GetCString(theCString, theCStringSize);
+		DebugMessageN1("CAHALAudioSystemObject::LogBasicDeviceInfo:   Name:      %s", theCString);
+		
+		CACFString theDeviceUID(theDevice.CopyDeviceUID());
+		theCStringSize = sizeof(theCString);
+		theDeviceUID.GetCString(theCString, theCStringSize);
+		DebugMessageN1("CAHALAudioSystemObject::LogBasicDeviceInfo:   UID:       %s", theCString);
+	}
+}
+
+static inline AudioObjectPropertySelector	CAHALAudioSystemObject_CalculateDefaultDeviceProperySelector(bool inIsInput, bool inIsSystem)
+{
+	AudioObjectPropertySelector theAnswer = kAudioHardwarePropertyDefaultOutputDevice;
+	if(inIsInput)
+	{
+		theAnswer = kAudioHardwarePropertyDefaultInputDevice;
+	}
+	else if(inIsSystem)
+	{
+		theAnswer = kAudioHardwarePropertyDefaultSystemOutputDevice;
+	}
+	return theAnswer;
+}
+
+AudioObjectID	CAHALAudioSystemObject::GetDefaultAudioDevice(bool inIsInput, bool inIsSystem) const
+{
+	AudioObjectID theAnswer = kAudioObjectUnknown;
+	CAPropertyAddress theAddress(CAHALAudioSystemObject_CalculateDefaultDeviceProperySelector(inIsInput, inIsSystem));
+	UInt32 theSize = sizeof(AudioObjectID);
+	GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);
+	return theAnswer;
+}
+
+void	CAHALAudioSystemObject::SetDefaultAudioDevice(bool inIsInput, bool inIsSystem, AudioObjectID inNewDefaultDevice)
+{
+	CAPropertyAddress theAddress(CAHALAudioSystemObject_CalculateDefaultDeviceProperySelector(inIsInput, inIsSystem));
+	UInt32 theSize = sizeof(AudioObjectID);
+	SetPropertyData(theAddress, 0, NULL, theSize, &inNewDefaultDevice);
+}
+
+AudioObjectID	CAHALAudioSystemObject::GetAudioPlugInForBundleID(CFStringRef inUID) const
+{
+	AudioObjectID theAnswer = kAudioObjectUnknown;
+	AudioValueTranslation theValue = { &inUID, sizeof(CFStringRef), &theAnswer, sizeof(AudioObjectID) };
+	CAPropertyAddress theAddress(kAudioHardwarePropertyPlugInForBundleID);
+	UInt32 theSize = sizeof(AudioValueTranslation);
+	GetPropertyData(theAddress, 0, NULL, theSize, &theValue);
+	return theAnswer;
+}