subsurface/core/picture.h
Berthold Stoeger 408b31b6ce core: default initialize units-type objects to 0
Makes the code much nicer to read.

Default initialize cylinder_t to the empty cylinder.

This produces lots of warnings, because most structure are now
not PODs anymore and shouldn't be erased using memset().

These memset()s will be removed one-by-one and replaced by
proper constructors.

The whole ordeal made it necessary to add a constructor to
struct event. To simplify things the whole optimization of
the variable-size event names was removed. In upcoming commits
this will be replaced by std::string anyway.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-08-13 19:28:30 +02:00

47 lines
1.7 KiB
C

// 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
struct dive;
struct picture {
char *filename = nullptr;
offset_t offset;
location_t location;
};
/* loop through all pictures of a dive */
#define FOR_EACH_PICTURE(_dive) \
if ((_dive) && (_dive)->pictures.nr) \
for (struct picture *picture = (_dive)->pictures.pictures; \
picture < (_dive)->pictures.pictures + (_dive)->pictures.nr; \
picture++)
/* 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 *);
extern struct picture *create_picture(const char *filename, timestamp_t shift_time, bool match_all, struct dive **dive);
extern bool picture_check_valid_time(timestamp_t timestamp, timestamp_t shift_time);
#endif // PICTURE_H