CoreAudio/PublicUtility/CAPropertyAddress.h

/*
     File: CAPropertyAddress.h
 Abstract: Part of CoreAudio Utility Classes
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*/
#if !defined(__CAPropertyAddress_h__)
#define __CAPropertyAddress_h__
 
//==================================================================================================
//  Includes
//==================================================================================================
 
//  PublicUtility Includes
#include "CADebugMacros.h"
 
//  System Includes
#include <CoreAudio/AudioHardware.h>
 
//  Standard Library Includes
#include <algorithm>
#include <functional>
#include <vector>
 
//==================================================================================================
//  CAPropertyAddress
//
//  CAPropertyAddress extends the AudioObjectPropertyAddress structure to C++ including constructors
//  and other utility operations. Note that there is no defined operator< or operator== because the
//  presence of wildcards for the fields make comparisons ambiguous without specifying whether or
//  not to take the wildcards into account. Consequently, if you want to use this struct in an STL
//  data structure, you'll need to specify the approriate function object explicitly in the template
//  declaration.
//==================================================================================================
 
struct CAPropertyAddress
:
    public AudioObjectPropertyAddress
{
 
//  Construction/Destruction
public:
                        CAPropertyAddress()                                                                                                                 : AudioObjectPropertyAddress() { mSelector = 0; mScope = kAudioObjectPropertyScopeGlobal; mElement = kAudioObjectPropertyElementMaster; }
                        CAPropertyAddress(AudioObjectPropertySelector inSelector)                                                                           : AudioObjectPropertyAddress() { mSelector = inSelector; mScope = kAudioObjectPropertyScopeGlobal; mElement = kAudioObjectPropertyElementMaster; }
                        CAPropertyAddress(AudioObjectPropertySelector inSelector, AudioObjectPropertyScope inScope)                                         : AudioObjectPropertyAddress() { mSelector = inSelector; mScope = inScope; mElement = kAudioObjectPropertyElementMaster; }
                        CAPropertyAddress(AudioObjectPropertySelector inSelector, AudioObjectPropertyScope inScope, AudioObjectPropertyElement inElement)   : AudioObjectPropertyAddress() { mSelector = inSelector; mScope = inScope; mElement = inElement; }
                        CAPropertyAddress(const AudioObjectPropertyAddress& inAddress)                                                                      : AudioObjectPropertyAddress(inAddress){}
                        CAPropertyAddress(const CAPropertyAddress& inAddress)                                                                               : AudioObjectPropertyAddress(inAddress){}
    CAPropertyAddress&  operator=(const AudioObjectPropertyAddress& inAddress)                                                                              { AudioObjectPropertyAddress::operator=(inAddress); return *this; }
    CAPropertyAddress&  operator=(const CAPropertyAddress& inAddress)                                                                                       { AudioObjectPropertyAddress::operator=(inAddress); return *this; }
    
//  Operations
public:
    static bool         IsSameAddress(const AudioObjectPropertyAddress& inAddress1, const AudioObjectPropertyAddress& inAddress2)                           { return (inAddress1.mScope == inAddress2.mScope) && (inAddress1.mSelector == inAddress2.mSelector) && (inAddress1.mElement == inAddress2.mElement); }
    static bool         IsLessThanAddress(const AudioObjectPropertyAddress& inAddress1, const AudioObjectPropertyAddress& inAddress2)                       { bool theAnswer = false; if(inAddress1.mScope != inAddress2.mScope) { theAnswer = inAddress1.mScope < inAddress2.mScope; } else if(inAddress1.mSelector != inAddress2.mSelector) { theAnswer = inAddress1.mSelector < inAddress2.mSelector; } else { theAnswer = inAddress1.mElement < inAddress2.mElement; } return theAnswer; }
    static bool         IsCongruentSelector(AudioObjectPropertySelector inSelector1, AudioObjectPropertySelector inSelector2)                               { return (inSelector1 == inSelector2) || (inSelector1 == kAudioObjectPropertySelectorWildcard) || (inSelector2 == kAudioObjectPropertySelectorWildcard); }
    static bool         IsCongruentScope(AudioObjectPropertyScope inScope1, AudioObjectPropertyScope inScope2)                                              { return (inScope1 == inScope2) || (inScope1 == kAudioObjectPropertyScopeWildcard) || (inScope2 == kAudioObjectPropertyScopeWildcard); }
    static bool         IsCongruentElement(AudioObjectPropertyElement inElement1, AudioObjectPropertyElement inElement2)                                    { return (inElement1 == inElement2) || (inElement1 == kAudioObjectPropertyElementWildcard) || (inElement2 == kAudioObjectPropertyElementWildcard); }
    static bool         IsCongruentAddress(const AudioObjectPropertyAddress& inAddress1, const AudioObjectPropertyAddress& inAddress2)                      { return IsCongruentScope(inAddress1.mScope, inAddress2.mScope) && IsCongruentSelector(inAddress1.mSelector, inAddress2.mSelector) && IsCongruentElement(inAddress1.mElement, inAddress2.mElement); }
    static bool         IsCongruentLessThanAddress(const AudioObjectPropertyAddress& inAddress1, const AudioObjectPropertyAddress& inAddress2)              { bool theAnswer = false; if(!IsCongruentScope(inAddress1.mScope, inAddress2.mScope)) { theAnswer = inAddress1.mScope < inAddress2.mScope; } else if(!IsCongruentSelector(inAddress1.mSelector, inAddress2.mSelector)) { theAnswer = inAddress1.mSelector < inAddress2.mSelector; } else if(!IsCongruentElement(inAddress1.mElement, inAddress2.mElement)) { theAnswer = inAddress1.mElement < inAddress2.mElement; } return theAnswer; }
 
//  STL Helpers
public:
    struct EqualTo : public std::binary_function<AudioObjectPropertyAddress, AudioObjectPropertyAddress, bool>
    {
        bool    operator()(const AudioObjectPropertyAddress& inAddress1, const AudioObjectPropertyAddress& inAddress2) const                                { return IsSameAddress(inAddress1, inAddress2); }
    };
 
    struct LessThan : public std::binary_function<AudioObjectPropertyAddress, AudioObjectPropertyAddress, bool>
    {
        bool    operator()(const AudioObjectPropertyAddress& inAddress1, const AudioObjectPropertyAddress& inAddress2) const                                { return IsLessThanAddress(inAddress1, inAddress2); }
    };
 
    struct CongruentEqualTo : public std::binary_function<AudioObjectPropertyAddress, AudioObjectPropertyAddress, bool>
    {
        bool    operator()(const AudioObjectPropertyAddress& inAddress1, const AudioObjectPropertyAddress& inAddress2) const                                { return IsCongruentAddress(inAddress1, inAddress2); }
    };
 
    struct CongruentLessThan : public std::binary_function<AudioObjectPropertyAddress, AudioObjectPropertyAddress, bool>
    {
        bool    operator()(const AudioObjectPropertyAddress& inAddress1, const AudioObjectPropertyAddress& inAddress2) const                                { return IsCongruentLessThanAddress(inAddress1, inAddress2); }
    };
 
};
 
//==================================================================================================
//  CAPropertyAddressList
//
//  An auto-resizing array of CAPropertyAddress structures.
//==================================================================================================
 
class   CAPropertyAddressList
{
 
//  Construction/Destruction
public:
                                            CAPropertyAddressList()                                                                 : mAddressList(), mToken(NULL) {}
    explicit                                CAPropertyAddressList(void* inToken)                                                    : mAddressList(), mToken(inToken) {}
    explicit                                CAPropertyAddressList(uintptr_t inToken)                                                : mAddressList(), mToken(reinterpret_cast<void*>(inToken)) {}
                                            CAPropertyAddressList(const CAPropertyAddressList& inAddressList)                       : mAddressList(inAddressList.mAddressList), mToken(inAddressList.mToken) {}
    CAPropertyAddressList&                  operator=(const CAPropertyAddressList& inAddressList)                                   { mAddressList = inAddressList.mAddressList; mToken = inAddressList.mToken; return *this; }
                                            ~CAPropertyAddressList()                                                                {}
 
//  Operations
public:
    void*                                   GetToken() const                                                                        { return mToken; }
    void                                    SetToken(void* inToken)                                                                 { mToken = inToken; }
    
    uintptr_t                               GetIntToken() const                                                                     { return reinterpret_cast<uintptr_t>(mToken); }
    void                                    SetIntToken(uintptr_t inToken)                                                          { mToken = reinterpret_cast<void*>(inToken); }
    
    AudioObjectID                           GetAudioObjectIDToken() const                                                           { return static_cast<AudioObjectID>(reinterpret_cast<uintptr_t>(mToken)); }
    
    bool                                    IsEmpty() const                                                                         { return mAddressList.empty(); }
    UInt32                                  GetNumberItems() const                                                                  { return ToUInt32(mAddressList.size()); }
    void                                    GetItemByIndex(UInt32 inIndex, AudioObjectPropertyAddress& outAddress) const            { if(inIndex < mAddressList.size()) { outAddress = mAddressList.at(inIndex); } }
    const AudioObjectPropertyAddress*       GetItems() const                                                                        { return &(*mAddressList.begin()); }
    AudioObjectPropertyAddress*             GetItems()                                                                              { return &(*mAddressList.begin()); }
    
    bool                                    HasItem(const AudioObjectPropertyAddress& inAddress) const                              { AddressList::const_iterator theIterator = std::find_if(mAddressList.begin(), mAddressList.end(), std::bind1st(CAPropertyAddress::CongruentEqualTo(), inAddress)); return theIterator != mAddressList.end(); }
    bool                                    HasExactItem(const AudioObjectPropertyAddress& inAddress) const                         { AddressList::const_iterator theIterator = std::find_if(mAddressList.begin(), mAddressList.end(), std::bind1st(CAPropertyAddress::EqualTo(), inAddress)); return theIterator != mAddressList.end(); }
 
    void                                    AppendItem(const AudioObjectPropertyAddress& inAddress)                                 { mAddressList.push_back(inAddress); }
    void                                    AppendUniqueItem(const AudioObjectPropertyAddress& inAddress)                           { if(!HasItem(inAddress)) { mAddressList.push_back(inAddress); } }
    void                                    AppendUniqueExactItem(const AudioObjectPropertyAddress& inAddress)                      { if(!HasExactItem(inAddress)) { mAddressList.push_back(inAddress); } }
    void                                    InsertItemAtIndex(UInt32 inIndex, const AudioObjectPropertyAddress& inAddress)          { if(inIndex < mAddressList.size()) { AddressList::iterator theIterator = mAddressList.begin(); std::advance(theIterator, static_cast<int>(inIndex)); mAddressList.insert(theIterator, inAddress); } else { mAddressList.push_back(inAddress); } }
    void                                    EraseExactItem(const AudioObjectPropertyAddress& inAddress)                             { AddressList::iterator theIterator = std::find_if(mAddressList.begin(), mAddressList.end(), std::bind1st(CAPropertyAddress::EqualTo(), inAddress)); if(theIterator != mAddressList.end()) { mAddressList.erase(theIterator); } }
    void                                    EraseItemAtIndex(UInt32 inIndex)                                                        { if(inIndex < mAddressList.size()) { AddressList::iterator theIterator = mAddressList.begin(); std::advance(theIterator, static_cast<int>(inIndex)); mAddressList.erase(theIterator); } }
    void                                    EraseAllItems()                                                                         { mAddressList.clear(); }
 
//  Implementation
private:
    typedef std::vector<CAPropertyAddress>  AddressList;
 
    AddressList                             mAddressList;
    void*                                   mToken;
    
};
 
//==================================================================================================
//  CAPropertyAddressListVector
//
//  An auto-resizing array of CAPropertyAddressList objects.
//==================================================================================================
 
class   CAPropertyAddressListVector
{
 
//  Construction/Destruction
public:
                                                CAPropertyAddressListVector()                                                       : mAddressListVector() {}
                                                CAPropertyAddressListVector(const CAPropertyAddressListVector& inAddressListVector) : mAddressListVector(inAddressListVector.mAddressListVector) {}
    CAPropertyAddressListVector&                operator=(const CAPropertyAddressListVector& inAddressListVector)                   { mAddressListVector = inAddressListVector.mAddressListVector; return *this; }
                                                ~CAPropertyAddressListVector()                                                      {}
 
//  Operations
public:
    bool                                        IsEmpty() const                                                                     { return mAddressListVector.empty(); }
    bool                                        HasAnyNonEmptyItems() const;
    bool                                        HasAnyItemsWithAddress(const AudioObjectPropertyAddress& inAddress) const;
    bool                                        HasAnyItemsWithExactAddress(const AudioObjectPropertyAddress& inAddress) const;
 
    UInt32                                      GetNumberItems() const                                                              { return ToUInt32(mAddressListVector.size()); }
    const CAPropertyAddressList&                GetItemByIndex(UInt32 inIndex) const                                                { return mAddressListVector.at(inIndex); }
    CAPropertyAddressList&                      GetItemByIndex(UInt32 inIndex)                                                      { return mAddressListVector.at(inIndex); }
    const CAPropertyAddressList*                GetItemByToken(void* inToken) const;
    CAPropertyAddressList*                      GetItemByToken(void* inToken);
    const CAPropertyAddressList*                GetItemByIntToken(uintptr_t inToken) const;
    CAPropertyAddressList*                      GetItemByIntToken(uintptr_t inToken);
    
    void                                        AppendItem(const CAPropertyAddressList& inAddressList)                              { mAddressListVector.push_back(inAddressList); }
    void                                        EraseAllItems()                                                                     { mAddressListVector.clear(); }
    
//  Implementation
private:
    typedef std::vector<CAPropertyAddressList>  AddressListVector;
 
    AddressListVector                           mAddressListVector;
 
};
 
inline bool CAPropertyAddressListVector::HasAnyNonEmptyItems() const
{
    bool theAnswer = false;
    for(AddressListVector::const_iterator theIterator = mAddressListVector.begin(); !theAnswer && (theIterator != mAddressListVector.end()); ++theIterator)
    {
        theAnswer = !theIterator->IsEmpty();
    }
    return theAnswer;
}
 
inline bool CAPropertyAddressListVector::HasAnyItemsWithAddress(const AudioObjectPropertyAddress& inAddress) const
{
    bool theAnswer = false;
    for(AddressListVector::const_iterator theIterator = mAddressListVector.begin(); !theAnswer && (theIterator != mAddressListVector.end()); ++theIterator)
    {
        theAnswer = theIterator->HasItem(inAddress);
    }
    return theAnswer;
}
 
inline bool CAPropertyAddressListVector::HasAnyItemsWithExactAddress(const AudioObjectPropertyAddress& inAddress) const
{
    bool theAnswer = false;
    for(AddressListVector::const_iterator theIterator = mAddressListVector.begin(); !theAnswer && (theIterator != mAddressListVector.end()); ++theIterator)
    {
        theAnswer = theIterator->HasExactItem(inAddress);
    }
    return theAnswer;
}
 
inline const CAPropertyAddressList* CAPropertyAddressListVector::GetItemByToken(void* inToken) const
{
    const CAPropertyAddressList* theAnswer = NULL;
    bool wasFound = false;
    for(AddressListVector::const_iterator theIterator = mAddressListVector.begin(); !wasFound && (theIterator != mAddressListVector.end()); ++theIterator)
    {
        if(theIterator->GetToken() == inToken)
        {
            wasFound = true;
            theAnswer = &(*theIterator);
        }
    }
    return theAnswer;
}
 
inline CAPropertyAddressList*   CAPropertyAddressListVector::GetItemByToken(void* inToken)
{
    CAPropertyAddressList* theAnswer = NULL;
    bool wasFound = false;
    for(AddressListVector::iterator theIterator = mAddressListVector.begin(); !wasFound && (theIterator != mAddressListVector.end()); ++theIterator)
    {
        if(theIterator->GetToken() == inToken)
        {
            wasFound = true;
            theAnswer = &(*theIterator);
        }
    }
    return theAnswer;
}
 
inline const CAPropertyAddressList* CAPropertyAddressListVector::GetItemByIntToken(uintptr_t inToken) const
{
    const CAPropertyAddressList* theAnswer = NULL;
    bool wasFound = false;
    for(AddressListVector::const_iterator theIterator = mAddressListVector.begin(); !wasFound && (theIterator != mAddressListVector.end()); ++theIterator)
    {
        if(theIterator->GetIntToken() == inToken)
        {
            wasFound = true;
            theAnswer = &(*theIterator);
        }
    }
    return theAnswer;
}
 
inline CAPropertyAddressList*   CAPropertyAddressListVector::GetItemByIntToken(uintptr_t inToken)
{
    CAPropertyAddressList* theAnswer = NULL;
    bool wasFound = false;
    for(AddressListVector::iterator theIterator = mAddressListVector.begin(); !wasFound && (theIterator != mAddressListVector.end()); ++theIterator)
    {
        if(theIterator->GetIntToken() == inToken)
        {
            wasFound = true;
            theAnswer = &(*theIterator);
        }
    }
    return theAnswer;
}
 
#endif