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/*
* gbsplay is a Gameboy sound player
*
* 2003-2020 (C) by Tobias Diedrich <ranma+gbsplay@tdiedrich.de>
*
* Licensed under GNU GPL v1 or, at your option, any later version.
*/
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include "impulsegen.h"
#define IMPULSE_N_SHIFT 7 /* 128 shifted impulses */
#define IMPULSE_W_SHIFT 5 /* 32 samples per impulse */
#define IMPULSE_CUTOFF 1.0 /* Cutoff at nyquist limit (no cutoff) */
#define IMPULSE_WIDTH (1 << IMPULSE_W_SHIFT)
#define IMPULSE_W_MASK (IMPULSE_WIDTH - 1)
#define IMPULSE_N (1 << IMPULSE_N_SHIFT)
#define IMPULSE_N_MASK (IMPULSE_N - 1)
int main(int argc, char **argv)
{
int32_t *impulsetab = gen_impulsetab(IMPULSE_W_SHIFT, IMPULSE_N_SHIFT, IMPULSE_CUTOFF);
int n = (1 << IMPULSE_N_SHIFT) * (1 << IMPULSE_W_SHIFT);
int i;
if (impulsetab == NULL) {
fprintf(stderr, "Failed to generate impulse table.");
return 1;
}
printf("#define IMPULSE_N_SHIFT %d\n", IMPULSE_N_SHIFT);
printf("#define IMPULSE_W_SHIFT %d\n", IMPULSE_W_SHIFT);
printf("static const int32_t base_impulse[] = {");
for (i=0; i<n; i++) {
if ((i & IMPULSE_W_MASK) == 0) {
printf("\n\t");
}
printf("%9d,", impulsetab[i]);
}
printf("\n};\n");
return 0;
}
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