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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
69aad6f1 | 2 | #include "xyarray.h" |
72f7c4d2 ACM |
3 | #include <stdlib.h> |
4 | #include <string.h> | |
7f7c536f | 5 | #include <linux/zalloc.h> |
69aad6f1 ACM |
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; | |
b45f65e8 | 15 | xy->entries = xlen * ylen; |
d74be476 AK |
16 | xy->max_x = xlen; |
17 | xy->max_y = ylen; | |
69aad6f1 ACM |
18 | } |
19 | ||
20 | return xy; | |
21 | } | |
22 | ||
b45f65e8 JO |
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 | ||
69aad6f1 ACM |
30 | void xyarray__delete(struct xyarray *xy) |
31 | { | |
32 | free(xy); | |
33 | } |