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Diffstat (limited to 'libs/appleutility/CoreAudio/PublicUtility/CAComponent.cpp')
-rw-r--r-- | libs/appleutility/CoreAudio/PublicUtility/CAComponent.cpp | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/libs/appleutility/CoreAudio/PublicUtility/CAComponent.cpp b/libs/appleutility/CoreAudio/PublicUtility/CAComponent.cpp new file mode 100644 index 0000000000..04eae545cf --- /dev/null +++ b/libs/appleutility/CoreAudio/PublicUtility/CAComponent.cpp @@ -0,0 +1,182 @@ +/* + 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); +} |