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#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "miniz.h"
#include "ubox_debug.h"
#include "ubox_assets.h"
#define EXT "pak"
static char *base = NULL;
static uint8_t has_zip = 0;
static mz_zip_archive zip;
uint8_t ubox_assets_init(const char *dirname)
{
char buff[256];
base = (char *)calloc(strlen(dirname) + 1, 1);
if (!base)
return 0;
strcpy(base, dirname);
UBOX_DEBUG_LOG("%s: resources base\n", base);
snprintf(buff, 255, "%s." EXT, base);
memset(&zip, 0, sizeof(zip));
if (mz_zip_reader_init_file(&zip, buff, 0))
has_zip = 1;
UBOX_DEBUG_LOG("%s: open %d\n", buff, has_zip);
return 1;
}
uint8_t ubox_assets_read(const char *name, uint8_t **data, size_t *data_size)
{
char buff[256];
FILE *fd;
/* check directory first */
snprintf(buff, 255, "%s/%s", base, name);
fd = fopen(buff, "rb");
if (fd)
{
UBOX_DEBUG_LOG("%s: file resource\n", buff);
fseek(fd, 0, SEEK_END);
*data_size = ftell(fd);
(*data) = (uint8_t *)calloc(*data_size, 1);
if (!(*data))
goto error_close;
fseek(fd, 0, SEEK_SET);
if (fread(*data, 1, *data_size, fd) == *data_size)
{
UBOX_DEBUG_LOG("%s: %li bytes\n", buff, *data_size);
return 1;
}
free(*data);
error_close:
(*data) = NULL;
*data_size = 0;
fclose(fd);
}
/* then check the archive if open */
if (has_zip)
{
*data = mz_zip_reader_extract_file_to_heap(&zip, name, data_size, 0);
if (*data)
{
UBOX_DEBUG_LOG("%s: " EXT " resource, %li bytes\n", buff, *data_size);
return 1;
}
}
return 0;
}
void ubox_assets_free()
{
if (base)
{
free(base);
base = NULL;
}
if (has_zip)
{
mz_zip_reader_end(&zip);
has_zip = 0;
}
}
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