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main.c
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/*
* main.c
*
* Created on: 08.03.2019
* Author: yukai.shen
*/
#include "fft.h"
short SampleArray_Real[FFTSIZE];
short SampleArray_Imag[FFTSIZE];
short W_Real[FFTSIZE/2];
short W_Imag[FFTSIZE/2];
int main()
{
int i;
FILE *inpFile;
FILE *outFile;
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Input Generate //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
for(i=0; i<FFTSIZE; i++){
SampleArray_Imag[i] = 0;
SampleArray_Real[i] = 1000*cos(2*PI*i/FFTSIZE);
}
inpFile = fopen("input", "w");
if(inpFile != NULL){
//Write DIT Results in a file
for(i=0; i<FFTSIZE; i++)
fprintf(inpFile,"Input[%d]: real:%d\timag:%d\n", i, SampleArray_Real[i], SampleArray_Imag[i]);
}
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// FFT without TIE //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//====
// DIT
//====
#if FFT==0
DIT();
outFile = fopen("outputDIT", "w");
if(outFile != NULL){
//Write DIT Results in a file
for(i=0; i<FFTSIZE; i++)
fprintf(outFile,"Output[%d]: real:%d\timag:%d\n", i, SampleArray_Real[i], SampleArray_Imag[i]);
}else
{
printf("\nERROR: Couldn't create file for outputDIT!\n");
return 1;
}
#endif
//====
// DIF
//====
#if FFT==1
DIF();
outFile = fopen("outputDIF", "w");
if(outFile != NULL){
for(i=0; i<FFTSIZE; i++)
fprintf(outFile,"Output[%d]: real:%d\timag:%d\n", i, SampleArray_Real[i], SampleArray_Imag[i]);
}else
{
printf("\nERROR: Couldn't create file for outputDIF!\n");
return 1;
}
#endif
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// FFT with MAC //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//===========
// DIT_macTIE
//===========
#if FFT==2
DIT_macTIE();
outFile = fopen("outputDIT_macTie", "w");
if(outFile != NULL){
for(i=0; i<FFTSIZE; i++)
fprintf(outFile,"Output[%d]: real:%d\timag:%d\n", i, SampleArray_Real[i], SampleArray_Imag[i]);
}else
{
printf("\nERROR: Couldn't create file for outputDIT_macTIE!\n");
return 1;
}
#endif
//===========
// DIF_macTIE
//===========
#if FFT==3
DIF_macTIE();
outFile = fopen("outputDIF_macTie", "w");
if(outFile != NULL){
for(i=0; i<FFTSIZE; i++)
fprintf(outFile,"Output[%d]: real:%d\timag:%d\n", i, SampleArray_Real[i], SampleArray_Imag[i]);
}else
{
printf("\nERROR: Couldn't create file for outputDIF_macTIE!\n");
return 1;
}
#endif
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// FFT with SIMD //
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//============
// DIT_simdTIE
//============
#if FFT==4
DIT_simdTIE();
outFile = fopen("outputDIT_simdTIE", "w");
if(outFile != NULL){
for(i=0; i<FFTSIZE; i++)
fprintf(outFile,"Output[%d]: real:%d\timag:%d\n", i, SampleArray_Real[i], SampleArray_Imag[i]);
}else
{
printf("\nERROR: Couldn't create file for outputDIT_simdTIE!\n");
return 1;
}
#endif
//============
// DIF_simdTIE
//============
#if FFT==5
DIF_simdTIE();
outFile = fopen("outputDIF_simdTIE", "w");
if(outFile != NULL){
for(i=0; i<FFTSIZE; i++)
fprintf(outFile,"Output[%d]: real:%d\timag:%d\n", i, SampleArray_Real[i], SampleArray_Imag[i]);
}else
{
printf("\nERROR: Couldn't create file for outputDIF_simdTIE!\n");
return 1;
}
#endif
return 0;
}