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// SPDX-License-Identifier: GPL-2.0
#ifndef PICTURE_H
#define PICTURE_H
// picture (more precisely media) related strutures and functions
#include "units.h"
#include <stddef.h> // For NULL
#ifdef __cplusplus
extern "C" {
#endif
struct picture {
char *filename;
offset_t offset;
location_t location;
};
static const struct picture empty_picture = { NULL, { 0 }, { { 0 }, { 0 } } };
/* Table of pictures. Attention: this stores pictures,
* *not* pointers to pictures. This has two crucial consequences:
* 1) Pointers to pictures are not stable. They may be
* invalidated if the table is reallocated.
* 2) add_to_picture_table(), etc. take ownership of the
* picture. Notably of the filename. */
struct picture_table {
int nr, allocated;
struct picture *pictures;
};
/* picture table functions */
extern void clear_picture_table(struct picture_table *);
extern void add_to_picture_table(struct picture_table *, int idx, struct picture pic);
extern void copy_pictures(const struct picture_table *s, struct picture_table *d);
extern void add_picture(struct picture_table *, struct picture newpic);
extern void remove_from_picture_table(struct picture_table *, int idx);
extern int get_picture_idx(const struct picture_table *, const char *filename); /* Return -1 if not found */
extern void sort_picture_table(struct picture_table *);
#ifdef __cplusplus
}
#endif
#endif // PICTURE_H
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