3 Abstract: Part of CoreAudio Utility Classes
6 Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
7 Inc. ("Apple") in consideration of your agreement to the following
8 terms, and your use, installation, modification or redistribution of
9 this Apple software constitutes acceptance of these terms. If you do
10 not agree with these terms, please do not use, install, modify or
11 redistribute this Apple software.
13 In consideration of your agreement to abide by the following terms, and
14 subject to these terms, Apple grants you a personal, non-exclusive
15 license, under Apple's copyrights in this original Apple software (the
16 "Apple Software"), to use, reproduce, modify and redistribute the Apple
17 Software, with or without modifications, in source and/or binary forms;
18 provided that if you redistribute the Apple Software in its entirety and
19 without modifications, you must retain this notice and the following
20 text and disclaimers in all such redistributions of the Apple Software.
21 Neither the name, trademarks, service marks or logos of Apple Inc. may
22 be used to endorse or promote products derived from the Apple Software
23 without specific prior written permission from Apple. Except as
24 expressly stated in this notice, no other rights or licenses, express or
25 implied, are granted by Apple herein, including but not limited to any
26 patent rights that may be infringed by your derivative works or by other
27 works in which the Apple Software may be incorporated.
29 The Apple Software is provided by Apple on an "AS IS" basis. APPLE
30 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
31 THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
32 FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
33 OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
35 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
36 OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
37 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
38 INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
39 MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
40 AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
41 STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
42 POSSIBILITY OF SUCH DAMAGE.
44 Copyright (C) 2014 Apple Inc. All Rights Reserved.
47 #ifndef __CAComponent_h__
48 #define __CAComponent_h__
50 #if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
52 #include <ConditionalMacros.h>
55 #include "CAComponentDescription.h"
61 : mComp (0), mDesc(), mManuName(0), mAUName(0), mCompName(0) {}
63 // if next is specifed that is used to find the next component after that one
64 CAComponent (const AudioComponentDescription& inDesc, CAComponent* next = 0);
66 CAComponent (const CAComponent& y)
67 : mComp (0), mDesc(), mManuName(0), mAUName(0), mCompName(0) { *this = y; }
69 CAComponent (const AudioComponent& comp);
71 CAComponent (const AudioComponentInstance& compInst);
73 CAComponent (OSType inType, OSType inSubtype = 0, OSType inManu = 0);
77 CAComponent& operator= (const CAComponent& y);
79 // returns true if this object references a valid component
80 bool IsValid () const { return Comp() != 0; }
82 bool HasAUStrings() const { SetCompNames (); return mManuName != 0; }
84 // CFStringRef should be retained by caller if needed beyond lifetime of this object
86 // Can return NULL if component doesn't follow AU naming conventions
87 CFStringRef GetAUManu () const { SetCompNames (); return mManuName; }
88 CFStringRef GetAUName () const { SetCompNames (); return mAUName ? mAUName : mCompName; }
90 // Return value of NULL indicates a problem getting that information from the component
91 CFStringRef GetCompName () const { SetCompNames(); return mCompName; }
93 const CAComponentDescription& Desc () const { return mDesc; }
95 OSStatus Open (AudioComponentInstance& outInst) const
97 return AudioComponentInstanceNew (Comp(), &outInst);
100 OSStatus GetVersion (UInt32 &outVersion) const;
102 const AudioComponent& Comp() const { return mComp; }
104 void Print(FILE* file = stdout) const;
106 OSStatus Save (CFPropertyListRef *outData) const;
108 OSStatus Restore (CFPropertyListRef &inData);
111 AudioComponent mComp;
112 CAComponentDescription mDesc;
114 CFStringRef mManuName, mAUName, mCompName;
116 void SetCompNames () const;
117 void SetCompInfo () const;