/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#ifndef __BLI_ARRAY_STORE_H__
#define __BLI_ARRAY_STORE_H__

/** \file
 * \ingroup bli
 * \brief Efficient in-memory storage of multiple similar arrays.
 */

#ifdef __cplusplus
extern "C" {
#endif

typedef struct BArrayState BArrayState;
typedef struct BArrayStore BArrayStore;

BArrayStore *BLI_array_store_create(unsigned int stride, unsigned int chunk_count);
void BLI_array_store_destroy(BArrayStore *bs);
void BLI_array_store_clear(BArrayStore *bs);

/* find the memory used by all states (expanded & real) */
size_t BLI_array_store_calc_size_expanded_get(const BArrayStore *bs);
size_t BLI_array_store_calc_size_compacted_get(const BArrayStore *bs);

BArrayState *BLI_array_store_state_add(BArrayStore *bs,
                                       const void *data,
                                       const size_t data_len,
                                       const BArrayState *state_reference);
void BLI_array_store_state_remove(BArrayStore *bs, BArrayState *state);

size_t BLI_array_store_state_size_get(BArrayState *state);
void BLI_array_store_state_data_get(BArrayState *state, void *data);
void *BLI_array_store_state_data_get_alloc(BArrayState *state, size_t *r_data_len);

/* only for tests */
bool BLI_array_store_is_valid(BArrayStore *bs);

#ifdef __cplusplus
}
#endif

#endif /* __BLI_ARRAY_STORE_H__ */
