template<> __device__ __forceinline__ uchar saturate_cast<uchar>(float v)
{
int iv = __float2int_rn(v);
return saturate_cast<uchar>(iv);
}
template<> __device__ __forceinline__ int saturate_cast<int>(float v)
{
return __float2int_rn(v);
}
__device__ short2 convert2s2(const float2 f2O1_){ //can be called from host and device
return make_short2(__float2int_rn(f2O1_.x), __float2int_rn(f2O1_.y));
}
template<> __device__ __forceinline__ short saturate_cast<short>(float v)
{
int iv = __float2int_rn(v);
return saturate_cast<short>(iv);
}
__device__ __forceinline__ elem_type operator ()(float y, float x) const
{
return src(__float2int_rn(y), __float2int_rn(x));
}