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69aad6f1 ACM |
1 | #ifndef _PERF_XYARRAY_H_ |
2 | #define _PERF_XYARRAY_H_ 1 | |
3 | ||
4 | #include <sys/types.h> | |
5 | ||
6 | struct xyarray { | |
7 | size_t row_size; | |
8 | size_t entry_size; | |
b45f65e8 | 9 | size_t entries; |
69aad6f1 ACM |
10 | char contents[]; |
11 | }; | |
12 | ||
13 | struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size); | |
14 | void xyarray__delete(struct xyarray *xy); | |
b45f65e8 | 15 | void xyarray__reset(struct xyarray *xy); |
69aad6f1 ACM |
16 | |
17 | static inline void *xyarray__entry(struct xyarray *xy, int x, int y) | |
18 | { | |
19 | return &xy->contents[x * xy->row_size + y * xy->entry_size]; | |
20 | } | |
21 | ||
22 | #endif /* _PERF_XYARRAY_H_ */ |