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#include "util.h"
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
UNUSED
long
read_entire_file (const char *file_name, char **str)
{
long file_size = 0;
FILE *file = fopen(file_name, "r");
if (!file) {
fprintf(stderr, "Cannot open file \"%s\": ", file_name);
perror(NULL);
return 0;
}
fseek(file, 0, SEEK_END);
file_size = ftell(file);
fseek(file, 0, SEEK_SET);
*str = (char*)realloc(*str, file_size+1);
*((*str)+file_size) = 0;
fread(*str, sizeof(char), file_size, file);
fclose(file);
return file_size;
}
UC_ATTR
LENT
max(const LENT a, const LENT b)
{
return (a < b) ? b : a;
}
U_ATTR
LENT
min(LENT a, LENT b)
{
return (a < b) ? a : b;
}
U_ATTR
WaveFrag
mix_waves(WaveFrag *frags, LENT len)
{
WaveFrag wf = (WaveFrag) { NULL, 0 };
LENT max_len = 0;
Pulse p = 0.0f;
for (LENT i = 0; i < len; i++)
max_len = max(max_len, (frags+i)->n);
wf.n = max_len;
wf.w = MYALLOC(Pulse, max_len);
for (LENT i = 0; i < max_len; i++) {
p = 0.0f;
for (LENT j = 0; j < len; j++)
if (i < (frags+j)->n) p += *((frags+j)->w+i);
*(wf.w+i) = p / (float) len;
}
return wf;
}
HC_ATTR
Hertz
stoh(const Semitones st)
{
return STDP * pow(STD_BASE, st);
}
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