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/******************************************************************************
*
* Copyright (C) 2018 The Android Open Source Project
*
* 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.
*
*****************************************************************************
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
*/
/*!
******************************************************************************
* \file convert_float_to_fix.c
*
* \brief
* This file contain float to fix and fix to float conversion function
*
* \date
*
* \author
* ittiam
*
******************************************************************************
*/
/*****************************************************************************/
/* File Includes */
/*****************************************************************************/
/* System include files */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#include <string.h>
/* User include files */
#include "ia_type_def.h"
/* #include "num_struct.h" */
#include "var_q_operator.h"
#define ABS(x) (((x) > 0) ? (x) : (-(x)))
void convert_float_to_fix(float a_f, number_t *a)
{
double log_a_f;
if(a_f != 0)
{
log_a_f = log(ABS(a_f)) / log(2);
a->e = 30 - (WORD32)ceil(log_a_f);
a->sm = (WORD32)(a_f * pow(2, a->e));
}
else
{
a->e = 0;
a->sm = 0;
}
}
void convert_fix_to_float(number_t a, float *a_f)
{
*a_f = (float)(a.sm / pow(2, a.e));
}
#ifdef ITT_C6678
#pragma CODE_SECTION(convert_fix_to_float, "itt_varq_l1pram");
#pragma CODE_SECTION(convert_float_to_fix, "itt_varq_l1pram");
#endif
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