diff options
Diffstat (limited to 'libs/appleutility/CoreAudio/PublicUtility/CAAudioTimeStamp.cpp')
| -rw-r--r-- | libs/appleutility/CoreAudio/PublicUtility/CAAudioTimeStamp.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/libs/appleutility/CoreAudio/PublicUtility/CAAudioTimeStamp.cpp b/libs/appleutility/CoreAudio/PublicUtility/CAAudioTimeStamp.cpp new file mode 100644 index 0000000000..0200ec9b79 --- /dev/null +++ b/libs/appleutility/CoreAudio/PublicUtility/CAAudioTimeStamp.cpp @@ -0,0 +1,135 @@ +/* + File: CAAudioTimeStamp.cpp + Abstract: CAAudioTimeStamp.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. + +*/ +//============================================================================= +// Includes +//============================================================================= + +#include "CAAudioTimeStamp.h" + +//============================================================================= +// CAAudioTimeStamp +//============================================================================= + +const AudioTimeStamp CAAudioTimeStamp::kZero = { 0.0, 0, 0.0, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 0, 0 }; + +bool operator<(const AudioTimeStamp& x, const AudioTimeStamp& y) +{ + bool isLessThan = false; + bool isDone = false; + + // check the sample time + if(!isDone) + { + if((x.mFlags & kAudioTimeStampSampleTimeValid) && (y.mFlags & kAudioTimeStampSampleTimeValid)) + { + isLessThan = x.mSampleTime < y.mSampleTime; + isDone = true; + } + } + + // check the host time + if(!isDone) + { + if((x.mFlags & kAudioTimeStampHostTimeValid) && (y.mFlags & kAudioTimeStampHostTimeValid)) + { + isLessThan = x.mHostTime < y.mHostTime; + isDone = true; + } + } + + // check the word clock time + if(!isDone) + { + if((x.mFlags & kAudioTimeStampWordClockTimeValid) && (y.mFlags & kAudioTimeStampWordClockTimeValid)) + { + isLessThan = x.mWordClockTime < y.mWordClockTime; + // commented out to prevent this from being flagged as a dead store by the static analyzer + //isDone = true; + } + } + + return isLessThan; +} + +bool operator==(const AudioTimeStamp& x, const AudioTimeStamp& y) +{ + bool isEqual = false; + bool isDone = false; + + // check the sample time + if(!isDone) + { + if((x.mFlags & kAudioTimeStampSampleTimeValid) && (y.mFlags & kAudioTimeStampSampleTimeValid)) + { + isEqual = x.mSampleTime == y.mSampleTime; + isDone = true; + } + } + + // check the host time + if(!isDone) + { + if((x.mFlags & kAudioTimeStampHostTimeValid) && (y.mFlags & kAudioTimeStampHostTimeValid)) + { + isEqual = x.mHostTime == y.mHostTime; + isDone = true; + } + } + + // check the word clock time + if(!isDone) + { + if((x.mFlags & kAudioTimeStampWordClockTimeValid) && (y.mFlags & kAudioTimeStampWordClockTimeValid)) + { + isEqual = x.mWordClockTime == y.mWordClockTime; + // commented out to prevent this from being flagged as a dead store by the static analyzer + //isDone = true; + } + } + + return isEqual; +} |