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bunch of minor code cleanup

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This commit is contained in:
Mark Borgerding
2004-02-27 03:45:12 +00:00
parent 0fd8da731a
commit e3fe1598f0
17 changed files with 161 additions and 130 deletions
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48
tools/psdpng.c
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@ -22,8 +22,8 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
#include "kiss_fft.h"
#include "kiss_fftr.h"
int nfft=1024;
int nfreqs=0;
size_t nfft=1024;
size_t nfreqs=0;
int repeat=0;
int window=0;
int colors=256;
@ -37,6 +37,7 @@ int remove_dc=1;
size_t nrows=0;
float * vals=NULL;
static
void config(int argc,char** argv)
{
while (1) {
@ -45,7 +46,7 @@ void config(int argc,char** argv)
break;
switch (c) {
case 'n':
nfft=atoi(optarg);
nfft=(size_t)atoi(optarg);
case '?':
fprintf (stderr, "usage options:\n"
"\t-n d: fft dimension(s) default = 1024\n"
@ -83,45 +84,43 @@ typedef struct
png_byte b;
} rgb_t;
rgb_t val2rgb(float x)
static
void val2rgb(float x,rgb_t *p)
{
const double pi = 3.14159265358979;
rgb_t p;
p.g = (int)(255*sin(x*pi));
p.r = (int)(255*abs(sin(x*pi*3/2)));
p.b = (int)(255*abs(sin(x*pi*5/2)));
return p;
p->g = (int)(255*sin(x*pi));
p->r = (int)(255*abs(sin(x*pi*3/2)));
p->b = (int)(255*abs(sin(x*pi*5/2)));
}
void cpx2pixels(rgb_t * res,const float * fbuf,size_t nfreqs)
static
void cpx2pixels(rgb_t * res,const float * fbuf,size_t n)
{
int i;
size_t i;
float minval,maxval,valrange;
minval=maxval=fbuf[0];
for (i = 0; i < nfreqs; ++i) {
for (i = 0; i < n; ++i) {
if (fbuf[i] > maxval) maxval = fbuf[i];
if (fbuf[i] < minval) minval = fbuf[i];
}
valrange = maxval-minval;
for (i = 0; i < nfreqs; ++i)
res[i] = val2rgb( (fbuf[i] - minval)/valrange );
for (i = 0; i < n; ++i)
val2rgb( (fbuf[i] - minval)/valrange , res+i );
}
void transform_signal()
static
void transform_signal(void)
{
short *inbuf;
void * cfg=NULL;
kiss_fftr_cfg cfg=NULL;
kiss_fft_scalar *tbuf;
kiss_fft_cpx *fbuf;
kiss_fft_cpx *avgbuf;
size_t i;
int n;
size_t n;
int avgctr=0;
nfreqs=nfft/2+1;
@ -132,7 +131,11 @@ void transform_signal()
CHECKNULL( fbuf=(kiss_fft_cpx*)malloc(sizeof(kiss_fft_cpx)*nfreqs ) );
CHECKNULL( avgbuf=(kiss_fft_cpx*)malloc(sizeof(kiss_fft_cpx)*nfreqs ) );
while ( ( n = fread(inbuf,sizeof(short)*2,nfft,fin) ) == nfft ) {
while (1){
n = fread(inbuf,sizeof(short)*2,nfft,fin);
if (n != nfft )
break;
/* pack the shorts */
for (i=0;i<nfft;++i){
tbuf[i] = inbuf[2*i] + inbuf[2*i+1];
@ -172,7 +175,8 @@ void transform_signal()
free(avgbuf);
}
void make_png()
static
void make_png(void)
{
png_bytepp row_pointers=NULL;
rgb_t * row_data=NULL;