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; 9 size_t entries; 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); 15 void xyarray__reset(struct xyarray *xy); 16 xyarray__entry(struct xyarray * xy,int x,int y)17static 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_ */ 23