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