mirror of https://gitee.com/openkylin/linux.git
35 lines
674 B
C
35 lines
674 B
C
#ifndef _PERF_XYARRAY_H_
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#define _PERF_XYARRAY_H_ 1
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#include <sys/types.h>
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struct xyarray {
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size_t row_size;
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size_t entry_size;
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size_t entries;
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size_t max_x;
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size_t max_y;
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char contents[];
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};
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struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);
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void xyarray__delete(struct xyarray *xy);
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void xyarray__reset(struct xyarray *xy);
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static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
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{
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return &xy->contents[x * xy->row_size + y * xy->entry_size];
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}
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static inline int xyarray__max_y(struct xyarray *xy)
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{
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return xy->max_x;
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}
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static inline int xyarray__max_x(struct xyarray *xy)
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{
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return xy->max_y;
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}
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#endif /* _PERF_XYARRAY_H_ */
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