1 files changed, 83 insertions, 0 deletions
diff --git a/libs/appleutility/CoreAudio/PublicUtility/CACFNumber.cpp b/libs/appleutility/CoreAudio/PublicUtility/CACFNumber.cpp
new file mode 100644
index 0000000000..36d1c2e2e2
--- /dev/null
+++ b/libs/appleutility/CoreAudio/PublicUtility/CACFNumber.cpp
@@ -0,0 +1,83 @@
+/*
+     File: CACFNumber.cpp
+ Abstract: CACFNumber.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 "CACFNumber.h"
+
+//=============================================================================
+//	CACFNumber
+//=============================================================================
+
+Float32	CACFNumber::GetFixed32() const
+{
+	SInt32 theFixedValue = GetSInt32();
+	
+	//	this is a 16.16 value so convert it to a float
+	Float32 theSign = theFixedValue < 0 ? -1.0f : 1.0f;
+	theFixedValue *= (SInt32)theSign;
+	Float32 theWholePart = (theFixedValue & 0x7FFF0000) >> 16;
+	Float32 theFractPart = theFixedValue & 0x0000FFFF;
+	theFractPart /= 65536.0f;
+	
+	return theSign * (theWholePart + theFractPart);
+}
+
+Float64	CACFNumber::GetFixed64() const
+{
+	SInt64 theFixedValue = GetSInt64();
+	
+	//	this is a 32.32 value so convert it to a double
+	Float64 theSign = theFixedValue < 0 ? -1.0 : 1.0;
+	theFixedValue *= (SInt64)theSign;
+	Float64 theWholePart = (theFixedValue & 0x7FFFFFFF00000000LL) >> 32;
+	Float64 theFractPart = theFixedValue & 0x00000000FFFFFFFFLL;
+	theFractPart /= 4294967296.0;
+	
+	return theSign * (theWholePart + theFractPart);
+}