1 /* 2 File: CAAudioValueRange.h 3 Abstract: Part of CoreAudio Utility Classes 4 Version: 1.1 5 6 Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple 7 Inc. ("Apple") in consideration of your agreement to the following 8 terms, and your use, installation, modification or redistribution of 9 this Apple software constitutes acceptance of these terms. 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APPLE 30 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION 31 THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS 32 FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND 33 OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. 34 35 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL 36 OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 37 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 38 INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, 39 MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED 40 AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), 41 STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE 42 POSSIBILITY OF SUCH DAMAGE. 43 44 Copyright (C) 2014 Apple Inc. All Rights Reserved. 45 46 */ 47 #if !defined(__CAAudioValueRange_h__) 48 #define __CAAudioValueRange_h__ 49 50 //============================================================================= 51 // Includes 52 //============================================================================= 53 54 // System Includes 55 #if !defined(__COREAUDIO_USE_FLAT_INCLUDES__) 56 #include <CoreAudio/CoreAudioTypes.h> 57 #else 58 #include <CoreAudioTypes.h> 59 #endif 60 // Standard Library Includes 61 #include <functional> 62 #include <vector> 63 64 //============================================================================= 65 // CAAudioValueRange 66 //============================================================================= 67 68 struct CAAudioValueRange 69 : 70 public AudioValueRange 71 { 72 73 // Construction/Destruction 74 public: CAAudioValueRangeCAAudioValueRange75 CAAudioValueRange() { mMinimum = 0.0; mMaximum = 0.0; } CAAudioValueRangeCAAudioValueRange76 CAAudioValueRange(const AudioValueRange& v) { mMinimum = v.mMinimum; mMaximum = v.mMaximum; } CAAudioValueRangeCAAudioValueRange77 CAAudioValueRange(Float64 inMinimum, Float64 inMaximum) { mMinimum = inMinimum; mMaximum = inMaximum; } 78 79 // Assignment 80 public: 81 CAAudioValueRange& operator=(const AudioValueRange& v) { mMinimum = v.mMinimum; mMaximum = v.mMaximum; return *this; } 82 83 // Operations 84 public: ContainsValueCAAudioValueRange85 static bool ContainsValue(const AudioValueRange& inRange, Float64 inValue) { return (inValue >= inRange.mMinimum) && (inValue <= inRange.mMaximum); } 86 static Float64 BoundValue(const AudioValueRange& inRange, Float64 inValue); 87 static Float64 PickCommonSampleRate(const AudioValueRange& inRange); IsStrictlyLessThanCAAudioValueRange88 static bool IsStrictlyLessThan(const AudioValueRange& x, const AudioValueRange& y) { return x.mMaximum < y.mMinimum; } IsStrictlyGreaterThanCAAudioValueRange89 static bool IsStrictlyGreaterThan(const AudioValueRange& x, const AudioValueRange& y) { return x.mMinimum > y.mMaximum; } IsStrictlyContainedByCAAudioValueRange90 static bool IsStrictlyContainedBy(const AudioValueRange& x, const AudioValueRange& y) { return (x.mMinimum >= y.mMinimum) && (x.mMaximum <= y.mMaximum); } OverlapsLowCAAudioValueRange91 static bool OverlapsLow(const AudioValueRange& x, const AudioValueRange& y) { return (x.mMinimum < y.mMinimum) && (x.mMaximum >= y.mMinimum) && (x.mMaximum <= y.mMaximum); } OverlapsHighCAAudioValueRange92 static bool OverlapsHigh(const AudioValueRange& x, const AudioValueRange& y) { return (x.mMinimum >= y.mMinimum) && (x.mMinimum <= y.mMaximum) && (x.mMaximum > y.mMaximum); } 93 static bool Intersection(const AudioValueRange& x, const AudioValueRange& y, AudioValueRange& outRange); 94 static bool Union(const AudioValueRange& x, const AudioValueRange& y, AudioValueRange& outRange); 95 96 // STL Helpers 97 public: 98 struct LessThan 99 : 100 public std::binary_function<AudioValueRange, AudioValueRange, bool> 101 { operatorCAAudioValueRange::LessThan102 bool operator()(const AudioValueRange& x, const AudioValueRange& y) const 103 { 104 return x.mMinimum < y.mMinimum; 105 } 106 }; 107 108 }; 109 110 inline bool operator<(const AudioValueRange& x, const AudioValueRange& y) { return x.mMinimum < y.mMinimum; } 111 inline bool operator==(const AudioValueRange& x, const AudioValueRange& y) { return (x.mMinimum == y.mMinimum) && (x.mMaximum == y.mMaximum); } 112 inline bool operator!=(const AudioValueRange& x, const AudioValueRange& y) { return !(x == y); } 113 inline bool operator<=(const AudioValueRange& x, const AudioValueRange& y) { return (x < y) || (x == y); } 114 inline bool operator>=(const AudioValueRange& x, const AudioValueRange& y) { return !(x < y); } 115 inline bool operator>(const AudioValueRange& x, const AudioValueRange& y) { return !((x < y) || (x == y)); } 116 117 typedef std::vector<CAAudioValueRange> CAAudioValueRangeList; 118 void CAAudioValueRange_ComputeUnion(const AudioValueRange& inRange, const CAAudioValueRangeList& inRangeList, CAAudioValueRangeList& outUnion); 119 void CAAudioValueRange_ComputeIntersection(UInt32 inNumberRangeList1Items, AudioValueRange inRangeList1[], const CAAudioValueRangeList& inRangeList2, CAAudioValueRangeList& outIntersections); 120 121 #endif 122