| 1 | |
| 2 | #include <internal/xyarray.h>
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| 3 | #include <linux/zalloc.h>
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| 4 | #include <stdlib.h>
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| 5 | #include <string.h>
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| 6 |
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| 7 | struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size)
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| 8 | {
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| 9 | size_t row_size = ylen * entry_size;
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| 10 | struct xyarray *xy = zalloc(sizeof(*xy) + xlen * row_size);
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| 11 |
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| 12 | if (xy != NULL) {
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| 13 | xy->entry_size = entry_size;
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| 14 | xy->row_size = row_size;
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| 15 | xy->entries = xlen * ylen;
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| 16 | xy->max_x = xlen;
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| 17 | xy->max_y = ylen;
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| 18 | }
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| 19 |
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| 20 | return xy;
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| 21 | }
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| 22 |
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| 23 | void xyarray__reset(struct xyarray *xy)
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| 24 | {
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| 25 | size_t n = xy->entries * xy->entry_size;
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| 26 |
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| 27 | memset(xy->contents, 0, n);
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| 28 | }
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| 29 |
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| 30 | void xyarray__delete(struct xyarray *xy)
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| 31 | {
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| 32 | free(xy);
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| 33 | }
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