I8sinc.c
593 Bytes
/*
* create 8-bit I, one-D texture
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define ABS(x) ((x) < 0 ? -(x) : (x))
float
func1(int i)
{
return(ABS(cos((float)i*0.150) * exp(-0.015*i)));
}
main(int argc, char **argv)
{
int i;
#ifndef GNU_PLOT
printf("static Gfx I8sinc_C_dummy_aligner[] = { gsSPEndDisplayList() };\n");
printf("unsigned char I8sinc[256] = {\n");
for(i = 0; i < 256; i++)
{
printf("%d,\n", (int) (255 * func1(i)) );
}
printf("};\n");
#else
for(i = 0; i < 256; i++)
{
printf("%d\n", (int) (255 * func1(i));
}
#endif
}