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 
xyarray__new(int xlen,int ylen,size_t entry_size)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 
xyarray__reset(struct xyarray * xy)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 
xyarray__delete(struct xyarray * xy)30 void xyarray__delete(struct xyarray *xy)
31 {
32 	free(xy);
33 }
34