platform/mac/SuperColliderAU/AUSDK/CAVectorUnit.h

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  41 /*=============================================================================
  42         CAVectorUnit.h
  43
  44 =============================================================================*/
  45
  46 #ifndef __CAVectorUnit_h__
  47 #define __CAVectorUnit_h__
  48
  49 #include <TargetConditionals.h>
  50 #include "CAVectorUnitTypes.h"
  51
  52 #if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
  53         #include <CoreServices/CoreServices.h>
  54 #else
  55         #include <MacTypes.h>
  56 #endif
  57
  58 // Unify checks for vector units into a single function.
  59 // Allow setting an environment variable "CA_NoVector" to turn off vectorized code at runtime (very useful for performance testing).
  60
  61 class CAVectorUnit {
  62 public:
  63         static SInt32           GetVectorUnitType() { int x = sVectorUnitType; return (x != kVecUninitialized) ? x : CheckVectorUnit(); }
  64         static bool                     HasVectorUnit() { return GetVectorUnitType() > kVecNone; }
  65         static bool                     HasAltivec() { return GetVectorUnitType() == kVecAltivec; }
  66         static bool                     HasSSE2() { return GetVectorUnitType() >= kVecSSE2; }
  67         static bool                     HasSSE3() { return GetVectorUnitType() == kVecSSE3; }
  68
  69 private:
  70         static SInt32           CheckVectorUnit();
  71
  72         static int sVectorUnitType;
  73 };
  74
  75 #endif // __CAVectorUnit_h__