tools/perf/util/xyarray.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _PERF_XYARRAY_H_
   3 #define _PERF_XYARRAY_H_ 1
   4
   5 #include <linux/compiler.h>
   6 #include <sys/types.h>
   7
   8 struct xyarray {
   9         size_t row_size;
  10         size_t entry_size;
  11         size_t entries;
  12         size_t max_x;
  13         size_t max_y;
  14         char contents[] __aligned(8);
  15 };
  16
  17 struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);
  18 void xyarray__delete(struct xyarray *xy);
  19 void xyarray__reset(struct xyarray *xy);
  20
  21 static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
  22 {
  23         return &xy->contents[x * xy->row_size + y * xy->entry_size];
  24 }
  25
  26 static inline int xyarray__max_y(struct xyarray *xy)
  27 {
  28         return xy->max_y;
  29 }
  30
  31 static inline int xyarray__max_x(struct xyarray *xy)
  32 {
  33         return xy->max_x;
  34 }
  35
  36 #endif /* _PERF_XYARRAY_H_ */