//
// Copyright (c) 2017 The Khronos Group Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef FUNCTION_LIST_H
#define FUNCTION_LIST_H

#include "harness/compat.h"

#ifndef WIN32
#include <unistd.h>
#endif

#if defined(__APPLE__)
#include <OpenCL/opencl.h>
#else
#include <CL/cl.h>
#endif

#include "harness/mt19937.h"

union fptr {
    void *p;
    double (*f_f)(double);
    double (*f_u)(cl_uint);
    int (*i_f)(double);
    int (*i_f_f)(float);
    float (*f_ff_f)(float, float);
    double (*f_ff)(double, double);
    int (*i_ff)(double, double);
    double (*f_fi)(double, int);
    double (*f_fpf)(double, double *);
    double (*f_fpI)(double, int *);
    double (*f_ffpI)(double, double, int *);
    double (*f_fff)(double, double, double);
    float (*f_fma)(float, float, float, int);
};

union dptr {
    void *p;
    long double (*f_f)(long double);
    long double (*f_u)(cl_ulong);
    int (*i_f)(long double);
    long double (*f_ff)(long double, long double);
    int (*i_ff)(long double, long double);
    long double (*f_fi)(long double, int);
    long double (*f_fpf)(long double, long double *);
    long double (*f_fpI)(long double, int *);
    long double (*f_ffpI)(long double, long double, int *);
    long double (*f_fff)(long double, long double, long double);
};

struct Func;

struct vtbl
{
    const char *type_name;
    int (*TestFunc)(const struct Func *, MTdata, bool);
    int (*DoubleTestFunc)(
        const struct Func *, MTdata,
        bool); // may be NULL if function is single precision only
};

struct Func
{
    const char *name; // common name, to be used as an argument in the shell
    const char *nameInCode; // name as it appears in the __kernel, usually the
                            // same as name, but different for multiplication
    fptr func;
    dptr dfunc;
    fptr rfunc;
    float float_ulps;
    float double_ulps;
    float float_embedded_ulps;
    float relaxed_error;
    float relaxed_embedded_error;
    int ftz;
    int relaxed;
    const vtbl *vtbl_ptr;
};


extern const Func functionList[];

extern const size_t functionListCount;

#endif