git ssb

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#ifndef __PNGSPARK_H
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#define __PNGSPARK_H
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#include <stdint.h>
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struct pngspark {
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	size_t num_values;
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	size_t size;
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	size_t height;
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	uint32_t color;
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	double *values;
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	double max_value;
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	double min_value;
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	double scaling;
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};
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int pngspark_init(struct pngspark *, size_t, const char *, double);
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int pngspark_append(struct pngspark *, double);
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int pngspark_write(struct pngspark *, FILE *);
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int pngspark_end(struct pngspark *);
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#endif /* __PNGSPARK_H */
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