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livetrax/libs/appleutility/CoreAudio/PublicUtility/CAComponentDescription.h

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/*
File: CAComponentDescription.h
Abstract: Part of CoreAudio Utility Classes
Version: 1.1
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
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expressly stated in this notice, no other rights or licenses, express or
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Copyright (C) 2014 Apple Inc. All Rights Reserved.
*/
#ifndef __CAComponentDescription_h__
#define __CAComponentDescription_h__
#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
#include <AudioUnit/AudioUnit.h>
#else
#include <ConditionalMacros.h>
#include <AudioUnit.h>
#endif
#include "CACFDictionary.h"
#include <stdio.h>
#include <string.h>
void CAShowComponentDescription(const AudioComponentDescription *desc);
// ____________________________________________________________________________
//
// CAComponentDescription
class CAComponentDescription : public AudioComponentDescription {
public:
CAComponentDescription() { memset (this, 0, sizeof (AudioComponentDescription)); }
CAComponentDescription (OSType inType, OSType inSubtype = 0, OSType inManu = 0);
CAComponentDescription(const AudioComponentDescription& desc) { memcpy (this, &desc, sizeof (AudioComponentDescription)); }
// _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
//
// interrogation
bool IsAU () const;
bool IsAUFX() const { return componentType == kAudioUnitType_Effect; }
bool IsAUFM() const { return componentType == kAudioUnitType_MusicEffect; }
bool IsAUMI() const { return componentType == 'aumi' /*kAudioUnitType_MIDIProcessor*/; }
bool IsAUAX () const { return componentType == 'auax' /*kAudioUnitType_Auxiliary*/; }
bool IsEffect () const { return IsAUFX() || IsAUFM() || IsPanner(); }
bool IsOffline () const { return componentType == 'auol' /*kAudioUnitType_Offline*/; }
bool IsFConv () const { return componentType == kAudioUnitType_FormatConverter; }
bool IsPanner () const { return componentType == kAudioUnitType_Panner; }
bool IsMusicDevice () const { return componentType == kAudioUnitType_MusicDevice; }
#ifndef MAC_OS_X_VERSION_10_4
bool IsGenerator () const { return componentType =='augn'; }
#else
bool IsGenerator () const { return componentType ==kAudioUnitType_Generator; }
#endif
bool IsOutput () const { return componentType == kAudioUnitType_Output; }
bool IsSource () const { return IsMusicDevice() || IsGenerator(); }
OSType Type () const { return componentType; }
OSType SubType () const { return componentSubType; }
OSType Manu () const { return componentManufacturer; }
int Count() const { return AudioComponentCount(const_cast<CAComponentDescription*>(this)); }
// does a semantic match where "wild card" values for type, subtype, manu will match
bool Matches (const AudioComponentDescription &desc) const;
// _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
//
// other
void Print(FILE* file = stdout) const { _CAShowComponentDescription (this, file); }
OSStatus Save (CFPropertyListRef *outData) const;
OSStatus Restore (CFPropertyListRef &inData);
private:
static void _CAShowComponentDescription (const AudioComponentDescription *desc, FILE* file);
friend void CAShowComponentDescription (const AudioComponentDescription *desc);
};
inline bool operator< (const AudioComponentDescription& x, const AudioComponentDescription& y)
{
return memcmp (&x, &y, offsetof (AudioComponentDescription, componentFlags)) < 0;
}
inline bool operator== (const AudioComponentDescription& x, const AudioComponentDescription& y)
{
return !memcmp (&x, &y, offsetof (AudioComponentDescription, componentFlags));
}
inline bool operator!= (const AudioComponentDescription& x, const AudioComponentDescription& y)
{
return !(x == y);
}
#endif