CE_Precision.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * NAME:        CE_Precision.h (VEX Library, C++)
 *
 * COMMENTS:
 */

#ifndef __CE_Precision__
#define __CE_Precision__

#include <SYS/SYS_Types.h>

#include <climits>

enum class CE_Precision
{
    CE_16,
    CE_32,
    CE_64,
};
constexpr CE_Precision CE_16 = CE_Precision::CE_16;
constexpr CE_Precision CE_32 = CE_Precision::CE_32;
constexpr CE_Precision CE_64 = CE_Precision::CE_64;

template <CE_Precision PREC> class CE_PrecisionResolver;

template <>
class CE_PrecisionResolver<CE_Precision::CE_16>
{
public:
    using host_int_type = int16;
    using host_float_type = fpreal16;
    using device_int_type = cl_short;
    using device_float_type = cl_half;
    static constexpr int bitsize = 16;
    static constexpr int bytesize = bitsize / CHAR_BIT;
};

template <>
class CE_PrecisionResolver<CE_Precision::CE_32>
{
public:
    using host_int_type = int32;
    using host_float_type = fpreal32;
    using device_int_type = cl_int;
    using device_float_type = cl_float;
    static constexpr int bitsize = 32;
    static constexpr int bytesize = bitsize / CHAR_BIT;
};

template <>
class CE_PrecisionResolver<CE_Precision::CE_64>
{
public:
    using host_int_type = int64;
    using host_float_type = fpreal64;
    using device_int_type = cl_long;
    using device_float_type = cl_double;
    static constexpr int bitsize = 64;
    static constexpr int bytesize = bitsize / CHAR_BIT;
};

template <CE_Precision P> using CEfloatH = typename CE_PrecisionResolver<P>::host_float_type;
template <CE_Precision P> using CEintH = typename CE_PrecisionResolver<P>::host_int_type;
template <CE_Precision P> using CEfloatD = typename CE_PrecisionResolver<P>::device_float_type;
template <CE_Precision P> using CEintD = typename CE_PrecisionResolver<P>::device_int_type;

#endif