Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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_ */ |