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/* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup bli
* \brief Helper functions for BLI_array_store API.
*/
#include "MEM_guardedalloc.h"
#include "BLI_utildefines.h"
#include "BLI_array_store.h"
#include "BLI_array_store_utils.h" /* own include */
#include "BLI_math_base.h"
BArrayStore *BLI_array_store_at_size_ensure(struct BArrayStore_AtSize *bs_stride,
const int stride,
const int chunk_size)
{
if (bs_stride->stride_table_len < stride) {
bs_stride->stride_table_len = stride;
bs_stride->stride_table = MEM_recallocN(bs_stride->stride_table,
sizeof(*bs_stride->stride_table) * stride);
}
BArrayStore **bs_p = &bs_stride->stride_table[stride - 1];
if ((*bs_p) == NULL) {
/* calculate best chunk-count to fit a power of two */
unsigned int chunk_count = chunk_size;
{
unsigned int size = chunk_count * stride;
size = power_of_2_max_u(size);
size = MEM_SIZE_OPTIMAL(size);
chunk_count = size / stride;
}
(*bs_p) = BLI_array_store_create(stride, chunk_count);
}
return *bs_p;
}
BArrayStore *BLI_array_store_at_size_get(struct BArrayStore_AtSize *bs_stride, const int stride)
{
BLI_assert(stride > 0 && stride <= bs_stride->stride_table_len);
return bs_stride->stride_table[stride - 1];
}
void BLI_array_store_at_size_clear(struct BArrayStore_AtSize *bs_stride)
{
for (int i = 0; i < bs_stride->stride_table_len; i += 1) {
if (bs_stride->stride_table[i]) {
BLI_array_store_destroy(bs_stride->stride_table[i]);
}
}
MEM_freeN(bs_stride->stride_table);
bs_stride->stride_table = NULL;
bs_stride->stride_table_len = 0;
}
void BLI_array_store_at_size_calc_memory_usage(struct BArrayStore_AtSize *bs_stride,
size_t *r_size_expanded,
size_t *r_size_compacted)
{
size_t size_compacted = 0;
size_t size_expanded = 0;
for (int i = 0; i < bs_stride->stride_table_len; i++) {
BArrayStore *bs = bs_stride->stride_table[i];
if (bs) {
size_compacted += BLI_array_store_calc_size_compacted_get(bs);
size_expanded += BLI_array_store_calc_size_expanded_get(bs);
}
}
*r_size_expanded = size_expanded;
*r_size_compacted = size_compacted;
}
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