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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../include.h"
#include "common.h"
int (*file_ext(char *file))(struct blob *, struct userdata *) {
size_t len = strlen(file);
#define ext(extension) memcmp(file + len - sizeof (extension) + 1, extension, sizeof (extension))
if ((ext(".mptm") && ext(".mod") && ext(".MOD") && ext(".xm") && ext(".s3m") && ext(".it")) == 0) {
return module_openmpt;
} else if ((ext(".mid") && ext(".MID") && ext(".midi")) == 0) {
return module_fluidsynth;
}
#undef ext
return NULL;
}
struct blob load_file(char const *const name) {
const size_t START_SIZE = 8192;
FILE *file = fopen(name, "rb");
if (file == NULL) {
return (struct blob) {.data = NULL};
}
void *data = malloc(START_SIZE);
size_t allocated = START_SIZE;
size_t used = 0;
while (1) {
size_t read = fread(data + used, 1, allocated - used, file);
if (read != allocated - used) {
used += read;
break;
}
used += read;
allocated *= 2;
void *const newdata = realloc(data, allocated);
if (newdata == NULL) {
goto realloc_error;
}
data = newdata;
}
void *const newdata = realloc(data, used);
if (newdata == NULL && used != 0) {
goto realloc_error;
}
fclose(file);
return (struct blob) {.data = newdata, .size = used};
realloc_error:
free(data);
fclose(file);
return (struct blob) {.data = NULL};
}
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