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+/*
+ File: CAComponent.cpp
+ Abstract: CAComponent.h
+ Version: 1.1
+
+ Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
+ Inc. ("Apple") in consideration of your agreement to the following
+ terms, and your use, installation, modification or redistribution of
+ this Apple software constitutes acceptance of these terms. If you do
+ not agree with these terms, please do not use, install, modify or
+ redistribute this Apple software.
+
+ In consideration of your agreement to abide by the following terms, and
+ subject to these terms, Apple grants you a personal, non-exclusive
+ license, under Apple's copyrights in this original Apple software (the
+ "Apple Software"), to use, reproduce, modify and redistribute the Apple
+ Software, with or without modifications, in source and/or binary forms;
+ provided that if you redistribute the Apple Software in its entirety and
+ without modifications, you must retain this notice and the following
+ text and disclaimers in all such redistributions of the Apple Software.
+ Neither the name, trademarks, service marks or logos of Apple Inc. may
+ be used to endorse or promote products derived from the Apple Software
+ without specific prior written permission from Apple. Except as
+ expressly stated in this notice, no other rights or licenses, express or
+ implied, are granted by Apple herein, including but not limited to any
+ patent rights that may be infringed by your derivative works or by other
+ works in which the Apple Software may be incorporated.
+
+ The Apple Software is provided by Apple on an "AS IS" basis. APPLE
+ MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
+ THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
+ FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
+ OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+
+ IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
+ MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
+ AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
+ STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ Copyright (C) 2014 Apple Inc. All Rights Reserved.
+
+*/
+#include "CAComponent.h"
+#include "CAComponentDescription.h"
+#include "CACFDictionary.h"
+#include <stdlib.h>
+#include "CAAutoDisposer.h"
+
+CAComponent::CAComponent (const AudioComponentDescription& inDesc, CAComponent* next)
+ : mManuName(0), mAUName(0), mCompName(0)
+{
+ mComp = AudioComponentFindNext ((next ? next->Comp() : NULL), &inDesc);
+ if (mComp)
+ AudioComponentGetDescription(Comp(), &mDesc);
+ else
+ memcpy (&mDesc, &inDesc, sizeof(AudioComponentDescription));
+}
+
+CAComponent::CAComponent (const AudioComponent& comp)
+ : mComp (comp),
+ mManuName(0),
+ mAUName(0),
+ mCompName(0)
+{
+ AudioComponentGetDescription (Comp(), &mDesc);
+}
+
+CAComponent::CAComponent (const AudioComponentInstance& compInst)
+ : mComp (NULL),
+ mManuName(0),
+ mAUName(0),
+ mCompName(0)
+{
+ mComp = AudioComponentInstanceGetComponent (compInst);
+ AudioComponentGetDescription (Comp(), &mDesc);
+}
+
+CAComponent::CAComponent (OSType inType, OSType inSubtype, OSType inManu)
+ : mDesc (inType, inSubtype, inManu),
+ mManuName(0), mAUName(0), mCompName(0)
+{
+ mComp = AudioComponentFindNext (NULL, &mDesc);
+ AudioComponentGetDescription (Comp(), &mDesc);
+}
+
+CAComponent::~CAComponent ()
+{
+ Clear();
+}
+
+OSStatus CAComponent::GetVersion (UInt32 &outVersion) const
+{
+ return AudioComponentGetVersion (mComp, &outVersion);
+}
+
+void CAComponent::Clear ()
+{
+ if (mManuName) { CFRelease (mManuName); mManuName = 0; }
+ if (mAUName) { CFRelease (mAUName); mAUName = 0; }
+ if (mCompName) { CFRelease (mCompName); mCompName = 0; }
+}
+
+CAComponent& CAComponent::operator= (const CAComponent& y)
+{
+ Clear();
+
+ mComp = y.mComp;
+ mDesc = y.mDesc;
+
+ if (y.mManuName) { mManuName = y.mManuName; CFRetain (mManuName); }
+ if (y.mAUName) { mAUName = y.mAUName; CFRetain (mAUName); }
+ if (y.mCompName) { mCompName = y.mCompName; CFRetain (mCompName); }
+
+ return *this;
+}
+
+void CAComponent::SetCompNames () const
+{
+ if (!mCompName) {
+
+ CFStringRef compName;
+ OSStatus result = AudioComponentCopyName (Comp(), &compName);
+ if (result) return;
+
+ const_cast<CAComponent*>(this)->mCompName = compName;
+ if (compName)
+ {
+ CFArrayRef splitStrArray = CFStringCreateArrayBySeparatingStrings(NULL, compName, CFSTR(":"));
+
+ // we need to retain these values so the strings are not lost when the array is released
+ const_cast<CAComponent*>(this)->mManuName = (CFStringRef)CFArrayGetValueAtIndex(splitStrArray, 0);
+ CFRetain(this->mManuName);
+ if (CFArrayGetCount(splitStrArray) > 1)
+ {
+ CFStringRef str = (CFStringRef)CFArrayGetValueAtIndex(splitStrArray, 1);
+
+ CFMutableStringRef mstr = CFStringCreateMutableCopy (NULL, CFStringGetLength(str), str);
+
+ // this needs to trim out white space:
+
+ CFStringTrimWhitespace (mstr);
+
+ const_cast<CAComponent*>(this)->mAUName = mstr;
+ } else
+ const_cast<CAComponent*>(this)->mAUName = NULL;
+
+ CFRelease(splitStrArray);
+ }
+ }
+}
+
+static void _ShowCF (FILE* file, CFStringRef str)
+{
+ if (CFGetTypeID(str) != CFStringGetTypeID()) {
+ CFShow(str);
+ return;
+ }
+
+ CFIndex len = CFStringGetLength(str);
+ char* chars = (char*)CA_malloc (len * 2); // give us plenty of room for unichar chars
+ if (CFStringGetCString (str, chars, len * 2, kCFStringEncodingUTF8))
+ fprintf (file, "%s", chars);
+ else
+ CFShow (str);
+
+ free (chars);
+}
+
+void CAComponent::Print(FILE* file) const
+{
+ fprintf (file, "CAComponent: %p", Comp());
+ if (mManuName) {
+ fprintf (file, ", Manu:"); _ShowCF (file, mManuName);
+ if (mAUName) fprintf (file, ", Name:"); _ShowCF (file, mAUName);
+ }
+ fprintf (file, ", ");
+ Desc ().Print(file);
+}