UniformRandomLCG.h

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// UniformRandomLCG.h:
// ------------
//

#ifndef __IPSDKUTIL_INSTRUCTIONSET_UNIFORMRANDOMLCG_H__
#define __IPSDKUTIL_INSTRUCTIONSET_UNIFORMRANDOMLCG_H__

#include <IPSDKUtil/IPSDKUtilExports.h>
#include <IPSDKUtil/InstructionSet/detail/UniformRandomLCGPack.h>
#include <IPSDKUtil/InstructionSet/detail/UniformRandomLCGReg.h>
#include <IPSDKUtil/InstructionSet/detail/BasePackDecl.h>
#include <IPSDKUtil/Tools/ForceInline.h>

namespace ipsdk {
namespace simd {



template <eInstructionSet::domain instructionSet, typename T>
class UniformRandomLCG {
public:
    UniformRandomLCG(T tmin, T tmax);

    UniformRandomLCG(T tmin, T tmax, ipUInt32 nSeed);

    IPSDK_FORCEINLINE BasePack<IS2PackType<instructionSet>::_packType, T> operator()()
    {
        return detail::UniformRandomLCGPack<instructionSet, T>::act(
            _rRangeMultiplier, _rRangeOffset, _seed);
    }

protected:
    typedef typename RegType<instructionSet,
        typename detail::UniformRandomLCGReg<
        instructionSet, T>::FloatType>::Type            RegFloat;

    typename RegType<instructionSet, ipUInt32>::Type    _seed;
    RegFloat                                            _rRangeMultiplier;
    RegFloat                                            _rRangeOffset;
    
};


} // end of namespace simd
} // end of namespace ipsdk

#endif // __IPSDKUTIL_INSTRUCTIONSET_UNIFORMRANDOMLCG_H__