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