void BLI_endian_switch_int64_array(int64_t *val, const int size)
{
if (size > 0) {
int i = size;
val = val + (size - 1);
while (i--) {
BLI_endian_switch_int64(val--);
}
}
}
struct anim_index *IMB_indexer_open(const char *name)
{
char header[13];
struct anim_index *idx;
FILE *fp = BLI_fopen(name, "rb");
int i;
if (!fp) {
return NULL;
}
if (fread(header, 12, 1, fp) != 1) {
fclose(fp);
return NULL;
}
header[12] = 0;
if (memcmp(header, magic, 8) != 0) {
fclose(fp);
return NULL;
}
if (atoi(header + 9) != INDEX_FILE_VERSION) {
fclose(fp);
return NULL;
}
idx = MEM_callocN(sizeof(struct anim_index), "anim_index");
BLI_strncpy(idx->name, name, sizeof(idx->name));
fseek(fp, 0, SEEK_END);
idx->num_entries = (ftell(fp) - 12) /
(sizeof(int) + /* framepos */
sizeof(unsigned long long) + /* seek_pos */
sizeof(unsigned long long) + /* seek_pos_dts */
sizeof(unsigned long long) /* pts */
);
fseek(fp, 12, SEEK_SET);
idx->entries = MEM_callocN(sizeof(struct anim_index_entry) *
idx->num_entries, "anim_index_entries");
for (i = 0; i < idx->num_entries; i++) {
fread(&idx->entries[i].frameno,
sizeof(int), 1, fp);
fread(&idx->entries[i].seek_pos,
sizeof(unsigned long long), 1, fp);
fread(&idx->entries[i].seek_pos_dts,
sizeof(unsigned long long), 1, fp);
fread(&idx->entries[i].pts,
sizeof(unsigned long long), 1, fp);
}
if (((ENDIAN_ORDER == B_ENDIAN) != (header[8] == 'V'))) {
for (i = 0; i < idx->num_entries; i++) {
BLI_endian_switch_int32(&idx->entries[i].frameno);
BLI_endian_switch_int64((int64_t *)&idx->entries[i].seek_pos);
BLI_endian_switch_int64((int64_t *)&idx->entries[i].seek_pos_dts);
BLI_endian_switch_int64((int64_t *)&idx->entries[i].pts);
}
}
fclose(fp);
return idx;
}
