1 files changed, 183 insertions, 0 deletions
diff --git a/libs/appleutility/CoreAudio/PublicUtility/CAStreamRangedDescription.cpp b/libs/appleutility/CoreAudio/PublicUtility/CAStreamRangedDescription.cpp
new file mode 100644
index 0000000000..9b72054101
--- /dev/null
+++ b/libs/appleutility/CoreAudio/PublicUtility/CAStreamRangedDescription.cpp
@@ -0,0 +1,183 @@
+/*
+     File: CAStreamRangedDescription.cpp
+ Abstract: CAStreamRangedDescription.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
+//==================================================================================================
+
+//	Self Include
+#include "CAStreamRangedDescription.h"
+#include "CAMath.h"
+
+//==================================================================================================
+//	CAStreamRangedDescription
+//==================================================================================================
+
+const AudioStreamRangedDescription	CAStreamRangedDescription::sEmpty = { { 0.0, 0, 0, 0, 0, 0, 0, 0, 0 }, { 0.0, 0.0 } };
+
+#if CoreAudio_Debug
+#include "CALogMacros.h"
+
+void	CAStreamRangedDescription::PrintToLog(const AudioStreamRangedDescription& inDesc)
+{
+	PrintFloat		("  Sample Rate:        ", inDesc.mFormat.mSampleRate);
+	PrintFloat		("  Max Sample Rate:    ", inDesc.mSampleRateRange.mMaximum);
+	PrintFloat		("  Min Sample Rate:    ", inDesc.mSampleRateRange.mMinimum);
+	Print4CharCode	("  Format ID:          ", inDesc.mFormat.mFormatID);
+	PrintHex		("  Format Flags:       ", inDesc.mFormat.mFormatFlags);
+	PrintInt		("  Bytes per Packet:   ", inDesc.mFormat.mBytesPerPacket);
+	PrintInt		("  Frames per Packet:  ", inDesc.mFormat.mFramesPerPacket);
+	PrintInt		("  Bytes per Frame:    ", inDesc.mFormat.mBytesPerFrame);
+	PrintInt		("  Channels per Frame: ", inDesc.mFormat.mChannelsPerFrame);
+	PrintInt		("  Bits per Channel:   ", inDesc.mFormat.mBitsPerChannel);
+}
+#endif
+
+bool	CAStreamRangedDescription::Sorter(const AudioStreamRangedDescription& x, const AudioStreamRangedDescription& y)
+{
+	bool theAnswer = false;
+	bool isDone = false;
+	
+	//	note that if either side is 0, that field is skipped
+	
+	//	format ID is the first order sort
+	if((!isDone) && ((x.mFormat.mFormatID != 0) && (y.mFormat.mFormatID != 0)))
+	{
+		if(x.mFormat.mFormatID != y.mFormat.mFormatID)
+		{
+			//	formats are sorted numerically except that linear
+			//	PCM is always first
+			if(x.mFormat.mFormatID == kAudioFormatLinearPCM)
+			{
+				theAnswer = true;
+			}
+			else if(y.mFormat.mFormatID == kAudioFormatLinearPCM)
+			{
+				theAnswer = false;
+			}
+			else
+			{
+				theAnswer = x.mFormat.mFormatID < y.mFormat.mFormatID;
+			}
+			isDone = true;
+		}
+	}
+	
+	
+	//  mixable is always better than non-mixable for linear PCM and should be the second order sort item
+	if((!isDone) && ((x.mFormat.mFormatID == kAudioFormatLinearPCM) && (y.mFormat.mFormatID == kAudioFormatLinearPCM)))
+	{
+		if(((x.mFormat.mFormatFlags & kIsNonMixableFlag) == 0) && ((y.mFormat.mFormatFlags & kIsNonMixableFlag) != 0))
+		{
+			theAnswer = true;
+			isDone = true;
+		}
+		else if(((x.mFormat.mFormatFlags & kIsNonMixableFlag) != 0) && ((y.mFormat.mFormatFlags & kIsNonMixableFlag) == 0))
+		{
+			theAnswer = false;
+			isDone = true;
+		}
+	}
+	
+	//	floating point vs integer for linear PCM only
+	if((!isDone) && ((x.mFormat.mFormatID == kAudioFormatLinearPCM) && (y.mFormat.mFormatID == kAudioFormatLinearPCM)))
+	{
+		if((x.mFormat.mFormatFlags & kAudioFormatFlagIsFloat) != (y.mFormat.mFormatFlags & kAudioFormatFlagIsFloat))
+		{
+			//	floating point is better than integer
+			theAnswer = y.mFormat.mFormatFlags & kAudioFormatFlagIsFloat;
+			isDone = true;
+		}
+	}
+	
+	//	bit depth
+	if((!isDone) && ((x.mFormat.mBitsPerChannel != 0) && (y.mFormat.mBitsPerChannel != 0)))
+	{
+		if(x.mFormat.mBitsPerChannel != y.mFormat.mBitsPerChannel)
+		{
+			//	deeper bit depths are higher quality
+			theAnswer = x.mFormat.mBitsPerChannel > y.mFormat.mBitsPerChannel;
+			isDone = true;
+		}
+	}
+	
+	//	sample rate range
+	if((!isDone) && fnonzero(x.mSampleRateRange.mMinimum) && fnonzero(x.mSampleRateRange.mMaximum) && fnonzero(y.mSampleRateRange.mMinimum) && fnonzero(y.mSampleRateRange.mMaximum))
+	{
+		if(x.mSampleRateRange != y.mSampleRateRange)
+		{
+			//	higher sample rates are higher quality
+			theAnswer = x.mSampleRateRange > y.mSampleRateRange;
+			isDone = true;
+		}
+	}
+	
+	//	sample rate
+	if((!isDone) && fnonzero(x.mFormat.mSampleRate) && fnonzero(y.mFormat.mSampleRate))
+	{
+		if(fnotequal(x.mFormat.mSampleRate, y.mFormat.mSampleRate))
+		{
+			//	higher sample rates are higher quality
+			theAnswer = x.mFormat.mSampleRate > y.mFormat.mSampleRate;
+			isDone = true;
+		}
+	}
+	
+	//	number of channels
+	if((!isDone) && ((x.mFormat.mChannelsPerFrame != 0) && (y.mFormat.mChannelsPerFrame != 0)))
+	{
+		if(x.mFormat.mChannelsPerFrame != y.mFormat.mChannelsPerFrame)
+		{
+			//	more channels is higher quality
+			theAnswer = x.mFormat.mChannelsPerFrame < y.mFormat.mChannelsPerFrame;
+			//	commented out to prevent this from being flagged as a dead store by the static analyzer
+			//isDone = true;
+		}
+	}
+	
+	return theAnswer;
+}
+