/*

     File: CAHALAudioObject.cpp

 Abstract: CAHALAudioObject.h

  Version: 1.1

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*/

//==================================================================================================

//  Includes

//==================================================================================================

//  Self Include

#include "CAHALAudioObject.h"

//  PublicUtility Includes

#include "CAAutoDisposer.h"

#include "CADebugMacros.h"

#include "CAException.h"

#include "CAPropertyAddress.h"

//==================================================================================================

//  CAHALAudioObject

//==================================================================================================

CAHALAudioObject::CAHALAudioObject(AudioObjectID inObjectID)

:

    mObjectID(inObjectID)

{

}

CAHALAudioObject::~CAHALAudioObject()

{

}

AudioObjectID   CAHALAudioObject::GetObjectID() const

{

    return mObjectID;

}

void    CAHALAudioObject::SetObjectID(AudioObjectID inObjectID)

{

    mObjectID = inObjectID;

}

AudioClassID    CAHALAudioObject::GetClassID() const

{

    //  set up the return value

    AudioClassID theAnswer = 0;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyClass);

    //  make sure the property exists

    if(HasProperty(theAddress))

    {

        UInt32 theSize = sizeof(AudioClassID);

        GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);

    }

    return theAnswer;

}

AudioObjectID   CAHALAudioObject::GetOwnerObjectID() const

{

    //  set up the return value

    AudioObjectID theAnswer = 0;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyOwner);

    //  make sure the property exists

    if(HasProperty(theAddress))

    {

        //  get the property data

        UInt32 theSize = sizeof(AudioObjectID);

        GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);

    }

    return theAnswer;

}

CFStringRef CAHALAudioObject::CopyOwningPlugInBundleID() const

{

    //  set up the return value

    CFStringRef theAnswer = NULL;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyCreator);

    //  make sure the property exists

    if(HasProperty(theAddress))

    {

        //  get the property data

        UInt32 theSize = sizeof(CFStringRef);

        GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);

    }

    return theAnswer;

}

CFStringRef CAHALAudioObject::CopyName() const

{

    //  set up the return value

    CFStringRef theAnswer = NULL;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyName);

    //  make sure the property exists

    if(HasProperty(theAddress))

    {

        //  get the property data

        UInt32 theSize = sizeof(CFStringRef);

        GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);

    }

    return theAnswer;

}

CFStringRef CAHALAudioObject::CopyManufacturer() const

{

    //  set up the return value

    CFStringRef theAnswer = NULL;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyManufacturer);

    //  make sure the property exists

    if(HasProperty(theAddress))

    {

        //  get the property data

        UInt32 theSize = sizeof(CFStringRef);

        GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);

    }

    return theAnswer;

}

CFStringRef CAHALAudioObject::CopyNameForElement(AudioObjectPropertyScope inScope, AudioObjectPropertyElement inElement) const

{

    //  set up the return value

    CFStringRef theAnswer = NULL;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyElementName, inScope, inElement);

    //  make sure the property exists

    if(HasProperty(theAddress))

    {

        //  get the property data

        UInt32 theSize = sizeof(CFStringRef);

        GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);

    }

    return theAnswer;

}

CFStringRef CAHALAudioObject::CopyCategoryNameForElement(AudioObjectPropertyScope inScope, AudioObjectPropertyElement inElement) const

{

    //  set up the return value

    CFStringRef theAnswer = NULL;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyElementCategoryName, inScope, inElement);

    //  make sure the property exists

    if(HasProperty(theAddress))

    {

        //  get the property data

        UInt32 theSize = sizeof(CFStringRef);

        GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);

    }

    return theAnswer;

}

CFStringRef CAHALAudioObject::CopyNumberNameForElement(AudioObjectPropertyScope inScope, AudioObjectPropertyElement inElement) const

{

    //  set up the return value

    CFStringRef theAnswer = NULL;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyElementNumberName, inScope, inElement);

    //  make sure the property exists

    if(HasProperty(theAddress))

    {

        //  get the property data

        UInt32 theSize = sizeof(CFStringRef);

        GetPropertyData(theAddress, 0, NULL, theSize, &theAnswer);

    }

    return theAnswer;

}

bool    CAHALAudioObject::ObjectExists(AudioObjectID inObjectID)

{

    Boolean isSettable;

    CAPropertyAddress theAddress(kAudioObjectPropertyClass);

    return (inObjectID == 0) || (AudioObjectIsPropertySettable(inObjectID, &theAddress, &isSettable) != 0);

}

UInt32  CAHALAudioObject::GetNumberOwnedObjects(AudioClassID inClass) const

{

    //  set up the return value

    UInt32 theAnswer = 0;

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyOwnedObjects);

    //  figure out the qualifier

    UInt32 theQualifierSize = 0;

    void* theQualifierData = NULL;

    if(inClass != 0)

    {

        theQualifierSize = sizeof(AudioObjectID);

        theQualifierData = &inClass;

    }

    //  get the property data size

    theAnswer = GetPropertyDataSize(theAddress, theQualifierSize, theQualifierData);

    //  calculate the number of object IDs

    theAnswer /= SizeOf32(AudioObjectID);

    return theAnswer;

}

void    CAHALAudioObject::GetAllOwnedObjects(AudioClassID inClass, UInt32& ioNumberObjects, AudioObjectID* ioObjectIDs) const

{

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyOwnedObjects);

    //  figure out the qualifier

    UInt32 theQualifierSize = 0;

    void* theQualifierData = NULL;

    if(inClass != 0)

    {

        theQualifierSize = sizeof(AudioObjectID);

        theQualifierData = &inClass;

    }

    //  get the property data

    UInt32 theDataSize = ioNumberObjects * SizeOf32(AudioClassID);

    GetPropertyData(theAddress, theQualifierSize, theQualifierData, theDataSize, ioObjectIDs);

    //  set the number of object IDs being returned

    ioNumberObjects = theDataSize / SizeOf32(AudioObjectID);

}

AudioObjectID   CAHALAudioObject::GetOwnedObjectByIndex(AudioClassID inClass, UInt32 inIndex)

{

    //  set up the property address

    CAPropertyAddress theAddress(kAudioObjectPropertyOwnedObjects);

    //  figure out the qualifier

    UInt32 theQualifierSize = 0;

    void* theQualifierData = NULL;

    if(inClass != 0)

    {

        theQualifierSize = sizeof(AudioObjectID);

        theQualifierData = &inClass;

    }

    //  figure out how much space to allocate

    UInt32 theDataSize = GetPropertyDataSize(theAddress, theQualifierSize, theQualifierData);

    UInt32 theNumberObjectIDs = theDataSize / SizeOf32(AudioObjectID);

    //  set up the return value

    AudioObjectID theAnswer = 0;

    //  maker sure the index is in range

    if(inIndex < theNumberObjectIDs)

    {

        //  allocate it

        CAAutoArrayDelete<AudioObjectID> theObjectList(theDataSize / sizeof(AudioObjectID));

        //  get the property data

        GetPropertyData(theAddress, theQualifierSize, theQualifierData, theDataSize, theObjectList);

        //  get the return value

        theAnswer = theObjectList[inIndex];

    }

    return theAnswer;

}

bool    CAHALAudioObject::HasProperty(const AudioObjectPropertyAddress& inAddress) const

{

    return AudioObjectHasProperty(mObjectID, &inAddress);

}

bool    CAHALAudioObject::IsPropertySettable(const AudioObjectPropertyAddress& inAddress) const

{

    Boolean isSettable = false;

    OSStatus theError = AudioObjectIsPropertySettable(mObjectID, &inAddress, &isSettable);

    ThrowIfError(theError, CAException(theError), "CAHALAudioObject::IsPropertySettable: got an error getting info about a property");

    return isSettable != 0;

}

UInt32  CAHALAudioObject::GetPropertyDataSize(const AudioObjectPropertyAddress& inAddress, UInt32 inQualifierDataSize, const void* inQualifierData) const

{

    UInt32 theDataSize = 0;

    OSStatus theError = AudioObjectGetPropertyDataSize(mObjectID, &inAddress, inQualifierDataSize, inQualifierData, &theDataSize);

    ThrowIfError(theError, CAException(theError), "CAHALAudioObject::GetPropertyDataSize: got an error getting the property data size");

    return theDataSize;

}

void    CAHALAudioObject::GetPropertyData(const AudioObjectPropertyAddress& inAddress, UInt32 inQualifierDataSize, const void* inQualifierData, UInt32& ioDataSize, void* outData) const

{

    OSStatus theError = AudioObjectGetPropertyData(mObjectID, &inAddress, inQualifierDataSize, inQualifierData, &ioDataSize, outData);

    ThrowIfError(theError, CAException(theError), "CAHALAudioObject::GetPropertyData: got an error getting the property data");

}

void    CAHALAudioObject::SetPropertyData(const AudioObjectPropertyAddress& inAddress, UInt32 inQualifierDataSize, const void* inQualifierData, UInt32 inDataSize, const void* inData)

{

    OSStatus theError = AudioObjectSetPropertyData(mObjectID, &inAddress, inQualifierDataSize, inQualifierData, inDataSize, inData);

    ThrowIfError(theError, CAException(theError), "CAHALAudioObject::SetPropertyData: got an error setting the property data");

}

void    CAHALAudioObject::AddPropertyListener(const AudioObjectPropertyAddress& inAddress, AudioObjectPropertyListenerProc inListenerProc, void* inClientData)

{

    OSStatus theError = AudioObjectAddPropertyListener(mObjectID, &inAddress, inListenerProc, inClientData);

    ThrowIfError(theError, CAException(theError), "CAHALAudioObject::AddPropertyListener: got an error adding a property listener");

}

void    CAHALAudioObject::RemovePropertyListener(const AudioObjectPropertyAddress& inAddress, AudioObjectPropertyListenerProc inListenerProc, void* inClientData)

{

    OSStatus theError = AudioObjectRemovePropertyListener(mObjectID, &inAddress, inListenerProc, inClientData);

    ThrowIfError(theError, CAException(theError), "CAHALAudioObject::RemovePropertyListener: got an error removing a property listener");

}