| 1 |
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| 2 | #ifndef __LIBPERF_INTERNAL_XYARRAY_H
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| 3 | #define __LIBPERF_INTERNAL_XYARRAY_H
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| 4 |
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| 5 | #include <linux/compiler.h>
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| 6 | #include <sys/types.h>
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| 7 |
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| 8 | struct xyarray {
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| 9 | size_t row_size;
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| 10 | size_t entry_size;
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| 11 | size_t entries;
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| 12 | size_t max_x;
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| 13 | size_t max_y;
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| 14 | char contents[] __aligned(8);
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| 15 | };
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| 16 |
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| 17 | struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size);
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| 18 | void xyarray__delete(struct xyarray *xy);
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| 19 | void xyarray__reset(struct xyarray *xy);
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| 20 |
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| 21 | static inline void *__xyarray__entry(struct xyarray *xy, int x, int y)
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| 22 | {
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| 23 | return &xy->contents[x * xy->row_size + y * xy->entry_size];
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| 24 | }
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| 25 |
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| 26 | static inline void *xyarray__entry(struct xyarray *xy, size_t x, size_t y)
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| 27 | {
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| 28 | if (x >= xy->max_x || y >= xy->max_y)
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| 29 | return NULL;
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| 30 | return __xyarray__entry(xy, x, y);
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| 31 | }
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| 32 |
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| 33 | static inline int xyarray__max_y(struct xyarray *xy)
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| 34 | {
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| 35 | return xy->max_y;
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| 36 | }
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| 37 |
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| 38 | static inline int xyarray__max_x(struct xyarray *xy)
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| 39 | {
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| 40 | return xy->max_x;
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| 41 | }
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| 42 |
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| 43 | #endif
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