Jamoma API  0.6.0.a19
CACFNumber.cpp
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41 //=============================================================================
42 // Includes
43 //=============================================================================
44 
45 #include "CACFNumber.h"
46 
47 //=============================================================================
48 // CACFNumber
49 //=============================================================================
50 
51 Float32 CACFNumber::GetFixed32() const
52 {
53  SInt32 theFixedValue = GetSInt32();
54 
55  // this is a 16.16 value so convert it to a float
56  Float32 theSign = theFixedValue < 0 ? -1.0f : 1.0f;
57  theFixedValue *= (SInt32)theSign;
58  Float32 theWholePart = (theFixedValue & 0x7FFF0000) >> 16;
59  Float32 theFractPart = theFixedValue & 0x0000FFFF;
60  theFractPart /= 65536.0f;
61 
62  return theSign * (theWholePart + theFractPart);
63 }
64 
65 Float64 CACFNumber::GetFixed64() const
66 {
67  SInt64 theFixedValue = GetSInt64();
68 
69  // this is a 32.32 value so convert it to a double
70  Float64 theSign = theFixedValue < 0 ? -1.0 : 1.0;
71  theFixedValue *= (SInt64)theSign;
72  Float64 theWholePart = (theFixedValue & 0x7FFFFFFF00000000LL) >> 32;
73  Float64 theFractPart = theFixedValue & 0x00000000FFFFFFFFLL;
74  theFractPart /= 4294967296.0;
75 
76  return theSign * (theWholePart + theFractPart);
77 }