1 | // SPDX-License-Identifier: GPL-2.0 |
2 | #include <internal/xyarray.h> |
3 | #include <linux/zalloc.h> |
4 | #include <stdlib.h> |
5 | #include <string.h> |
6 | |
7 | struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size) |
8 | { |
9 | size_t row_size = ylen * entry_size; |
10 | struct xyarray *xy = zalloc(sizeof(*xy) + xlen * row_size); |
11 | |
12 | if (xy != NULL) { |
13 | xy->entry_size = entry_size; |
14 | xy->row_size = row_size; |
15 | xy->entries = xlen * ylen; |
16 | xy->max_x = xlen; |
17 | xy->max_y = ylen; |
18 | } |
19 | |
20 | return xy; |
21 | } |
22 | |
23 | void xyarray__reset(struct xyarray *xy) |
24 | { |
25 | size_t n = xy->entries * xy->entry_size; |
26 | |
27 | memset(xy->contents, 0, n); |
28 | } |
29 | |
30 | void xyarray__delete(struct xyarray *xy) |
31 | { |
32 | free(xy); |
33 | } |
34 | |