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434644b381
The code is rather complex. Firstly, we have different representations of pictures throughout the code. Secondly, this tries to do add the pictures in batches to the divepicture model and that is always rather tricky. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef PICTURE_H
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#define PICTURE_H
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// picture (more precisely media) related strutures and functions
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#include "units.h"
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#include <stddef.h> // For NULL
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct picture {
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char *filename;
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offset_t offset;
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location_t location;
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};
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static const struct picture empty_picture = { NULL, { 0 }, { { 0 }, { 0 } } };
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/* Table of pictures. Attention: this stores pictures,
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* *not* pointers to pictures. This has two crucial consequences:
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* 1) Pointers to pictures are not stable. They may be
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* invalidated if the table is reallocated.
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* 2) add_to_picture_table(), etc. take ownership of the
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* picture. Notably of the filename. */
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struct picture_table {
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int nr, allocated;
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struct picture *pictures;
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};
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/* picture table functions */
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extern void clear_picture_table(struct picture_table *);
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extern void add_to_picture_table(struct picture_table *, int idx, struct picture pic);
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extern void copy_pictures(const struct picture_table *s, struct picture_table *d);
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extern void add_picture(struct picture_table *, struct picture newpic);
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extern void remove_from_picture_table(struct picture_table *, int idx);
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extern int get_picture_idx(const struct picture_table *, const char *filename); /* Return -1 if not found */
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extern void sort_picture_table(struct picture_table *);
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#ifdef __cplusplus
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}
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#endif
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#endif // PICTURE_H
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