CoreAudio/PublicUtility/CACFData.h
/* |
File: CACFData.h |
Abstract: Part of CoreAudio Utility Classes |
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. |
*/ |
#if !defined(__CACFData_h__) |
#define __CACFData_h__ |
//============================================================================= |
// Includes |
//============================================================================= |
#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__) |
#include <CoreAudio/CoreAudioTypes.h> |
#include <CoreFoundation/CFData.h> |
#else |
#include <CoreAudioTypes.h> |
#include <CFData.h> |
#endif |
#include "CADebugMacros.h" |
//============================================================================= |
// CACFData |
//============================================================================= |
class CACFData |
{ |
// Construction/Destruction |
public: |
explicit CACFData(CFDataRef inCFData) : mCFData(inCFData), mWillRelease(true) {} |
CACFData(CFDataRef inCFData, bool inWillRelease) : mCFData(inCFData), mWillRelease(inWillRelease) {} |
CACFData(const void* inData, UInt32 inDataSize) : mCFData(NULL), mWillRelease(true) { mCFData = CFDataCreate(NULL, static_cast<const UInt8*>(inData), static_cast<CFIndex>(inDataSize)); } |
~CACFData() { Release(); } |
CACFData(const CACFData& inNumber) : mCFData(inNumber.mCFData), mWillRelease(inNumber.mWillRelease) { Retain(); } |
CACFData& operator=(const CACFData& inNumber) { Release(); mCFData = inNumber.mCFData; mWillRelease = inNumber.mWillRelease; Retain(); return *this; } |
CACFData& operator=(CFDataRef inCFData) { Release(); mCFData = inCFData; mWillRelease = true; return *this; } |
private: |
void Retain() { if(mWillRelease && (mCFData != NULL)) { CFRetain(mCFData); } } |
void Release() { if(mWillRelease && (mCFData != NULL)) { CFRelease(mCFData); } } |
CFDataRef mCFData; |
bool mWillRelease; |
// Operations |
public: |
void AllowRelease() { mWillRelease = true; } |
void DontAllowRelease() { mWillRelease = false; } |
bool IsValid() { return mCFData != NULL; } |
// Value Access |
public: |
CFDataRef GetCFData() const { return mCFData; } |
CFDataRef CopyCFData() const { if(mCFData != NULL) { CFRetain(mCFData); } return mCFData; } |
UInt32 GetSize() const { return ToUInt32(CFDataGetLength(mCFData)); } |
const void* GetDataPtr() const { return CFDataGetBytePtr(mCFData); } |
void CopyData(UInt32 inStartOffset, void* outData, UInt32 inDataSize) const { CFRange theRange = { static_cast<CFIndex>(inStartOffset), static_cast<CFIndex>(inDataSize) }; CFDataGetBytes(mCFData, theRange, static_cast<UInt8*>(outData)); } |
SInt32 GetSInt32() const { SInt32 theAnswer = 0; CopyData(0, &theAnswer, SizeOf32(SInt32)); return theAnswer; } |
Float32 GetFloat32() const { Float32 theAnswer = 0; CopyData(0, &theAnswer, SizeOf32(Float32)); return theAnswer; } |
}; |
#endif |
Copyright © 2014 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2014-07-08