34 lines
		
	
	
		
			656 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			656 B
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0
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| #include <internal/xyarray.h>
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| #include <linux/zalloc.h>
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| #include <stdlib.h>
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| #include <string.h>
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| 
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| struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size)
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| {
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| 	size_t row_size = ylen * entry_size;
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| 	struct xyarray *xy = zalloc(sizeof(*xy) + xlen * row_size);
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| 
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| 	if (xy != NULL) {
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| 		xy->entry_size = entry_size;
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| 		xy->row_size   = row_size;
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| 		xy->entries    = xlen * ylen;
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| 		xy->max_x      = xlen;
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| 		xy->max_y      = ylen;
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| 	}
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| 
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| 	return xy;
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| }
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| 
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| void xyarray__reset(struct xyarray *xy)
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| {
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| 	size_t n = xy->entries * xy->entry_size;
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| 
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| 	memset(xy->contents, 0, n);
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| }
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| 
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| void xyarray__delete(struct xyarray *xy)
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| {
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| 	free(xy);
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| }
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