PublicUtility/CAComponentDescription.cpp

/*
     File: CAComponentDescription.cpp 
 Abstract:  CAComponentDescription.h  
  Version: 1.01 
  
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*/
#include "CAComponentDescription.h"
#include "CAStreamBasicDescription.h"
#include <ctype.h>
 
void CAShowComponentDescription(const AudioComponentDescription *desc)
{
    CAComponentDescription::_CAShowComponentDescription (desc, stdout);
}
 
void    CAComponentDescription::_CAShowComponentDescription(const AudioComponentDescription *desc, FILE* file)
{
    if (desc)
    {
        char str[24];
        fprintf (file, "AudioComponentDescription: %s - ", CAStringForOSType(desc->componentType, str));
        fprintf (file, "%s - ", CAStringForOSType(desc->componentSubType, str));
        fprintf (file, "%s", CAStringForOSType(desc->componentManufacturer, str));      
        fprintf (file, ", 0x%X, 0x%X\n", (int)desc->componentFlags, (int)desc->componentFlagsMask);
    }
}
 
CAComponentDescription::CAComponentDescription (OSType inType, OSType inSubtype, OSType inManu)
{
    componentType = inType;
    componentSubType = inSubtype;
    componentManufacturer = inManu;
    componentFlags = 0;
    componentFlagsMask = 0;
}
 
bool    CAComponentDescription::IsAU () const 
{ 
    bool flag = IsEffect() || IsMusicDevice() || IsOffline();
    if (flag) return true;
    
    switch (componentType) {
        case kAudioUnitType_Output:
        case kAudioUnitType_FormatConverter:
        case kAudioUnitType_Mixer:
            return true;
    }
    return false;
}
 
inline bool _MatchTest (const OSType &inTypeA, const OSType &inTypeB)
{
    return ((inTypeA == inTypeB) || (!inTypeA && !inTypeB) || (inTypeA && !inTypeB) || (!inTypeA && inTypeB)); 
}
 
bool    CAComponentDescription::Matches (const AudioComponentDescription &desc) const
{
    bool matches = false;
        
        // see if the type matches
    matches = _MatchTest (componentType, desc.componentType);
    
    if (matches)
        matches = _MatchTest (componentSubType, desc.componentSubType);
    
    if (matches)
        matches = _MatchTest (componentManufacturer, desc.componentManufacturer);
    
    return matches;
}