rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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_ */ |