void lib3ds_util_insert_array(void ***ptr, int *n, int *size, void *element, int index) {
int i;
assert(ptr && n && size && element);
i = ((index >= 0) && (index < *n)) ? index : *n;
if (i >= *size) {
int new_size = 2 * (*size);
#ifdef _DEBUG
if (new_size < 1) {
new_size = 1;
}
#else
if (new_size < 32) {
new_size = 32;
}
#endif
lib3ds_util_reserve_array(ptr, n, size, new_size, FALSE, NULL);
}
assert(*ptr);
if (i < *n) {
memmove(&(*ptr)[i+1], &(*ptr)[i], sizeof(void*) * (*n - i));
}
(*ptr)[i] = element;
*n = *n + 1;
}
void
lib3ds_file_reserve_cameras(Lib3dsFile *file, int size, int force) {
assert(file);
lib3ds_util_reserve_array((void***)&file->cameras, &file->ncameras, &file->cameras_size,
size, force, (Lib3dsFreeFunc)lib3ds_camera_free);
}
void
lib3ds_file_reserve_lights(Lib3dsFile *file, int size, int force) {
assert(file);
lib3ds_util_reserve_array((void***)&file->lights, &file->nlights, &file->lights_size,
size, force, (Lib3dsFreeFunc)lib3ds_light_free);
}
void lib3ds_file_reserve_materials(Lib3dsFile *file, int size, int force) {
assert(file);
lib3ds_util_reserve_array((void***)&file->materials, &file->nmaterials, &file->materials_size,
size, force, (Lib3dsFreeFunc)lib3ds_material_free);
}