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Diffstat (limited to 'src/libexif/pentax/exif-mnote-data-pentax.c')
-rw-r--r--src/libexif/pentax/exif-mnote-data-pentax.c209
1 files changed, 209 insertions, 0 deletions
diff --git a/src/libexif/pentax/exif-mnote-data-pentax.c b/src/libexif/pentax/exif-mnote-data-pentax.c
new file mode 100644
index 0000000..cc2cc12
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+++ b/src/libexif/pentax/exif-mnote-data-pentax.c
@@ -0,0 +1,209 @@
+/* exif-mnote-data-pentax.c
+ *
+ * Copyright © 2002, 2003 Lutz Mueller <lutz@users.sourceforge.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "config.h"
+#include "exif-mnote-data-pentax.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <libexif/exif-byte-order.h>
+#include <libexif/exif-utils.h>
+
+/* #define DEBUG */
+
+static void
+exif_mnote_data_pentax_clear (ExifMnoteDataPentax *n)
+{
+ ExifMnoteData *d = (ExifMnoteData *) n;
+ unsigned int i;
+
+ if (!n) return;
+
+ if (n->entries) {
+ for (i = 0; i < n->count; i++)
+ if (n->entries[i].data) {
+ exif_mem_free (d->mem, n->entries[i].data);
+ n->entries[i].data = NULL;
+ }
+ exif_mem_free (d->mem, n->entries);
+ n->entries = NULL;
+ n->count = 0;
+ }
+}
+
+static void
+exif_mnote_data_pentax_free (ExifMnoteData *n)
+{
+ if (!n) return;
+
+ exif_mnote_data_pentax_clear ((ExifMnoteDataPentax *) n);
+}
+
+static char *
+exif_mnote_data_pentax_get_value (ExifMnoteData *d, unsigned int i, char *val, unsigned int maxlen)
+{
+ ExifMnoteDataPentax *n = (ExifMnoteDataPentax *) d;
+
+ if (!n) return NULL;
+ if (n->count <= i) return NULL;
+ return mnote_pentax_entry_get_value (&n->entries[i], val, maxlen);
+}
+
+static void
+exif_mnote_data_pentax_load (ExifMnoteData *en,
+ const unsigned char *buf, unsigned int buf_size)
+{
+ ExifMnoteDataPentax *n = (ExifMnoteDataPentax *) en;
+ unsigned int i, o, s;
+ ExifShort c;
+
+ /* Number of entries */
+ if (buf_size < 2) return;
+ c = exif_get_short (buf + 6 + n->offset, n->order);
+ n->entries = exif_mem_alloc (en->mem, sizeof (MnotePentaxEntry) * c);
+ if (!n->entries) return;
+
+ for (i = 0; i < c; i++) {
+ o = 6 + 2 + n->offset + 12 * i;
+ if (o + 8 > buf_size) return;
+
+ n->count = i + 1;
+ n->entries[i].tag = exif_get_short (buf + o + 0, n->order);
+ n->entries[i].format = exif_get_short (buf + o + 2, n->order);
+ n->entries[i].components = exif_get_long (buf + o + 4, n->order);
+ n->entries[i].order = n->order;
+
+ /*
+ * Size? If bigger than 4 bytes, the actual data is not
+ * in the entry but somewhere else (offset).
+ */
+ s = exif_format_get_size (n->entries[i].format) *
+ n->entries[i].components;
+ if (!s) return;
+ o += 8;
+ if (s > 4) o = exif_get_long (buf + o, n->order) + 6;
+ if (o + s > buf_size) return;
+
+ /* Sanity check */
+ n->entries[i].data = exif_mem_alloc (en->mem, sizeof (char) * s);
+ if (!n->entries[i].data) return;
+ n->entries[i].size = s;
+ memcpy (n->entries[i].data, buf + o, s);
+ }
+}
+
+static unsigned int
+exif_mnote_data_pentax_count (ExifMnoteData *n)
+{
+ return n ? ((ExifMnoteDataPentax *) n)->count : 0;
+}
+
+static unsigned int
+exif_mnote_data_pentax_get_id (ExifMnoteData *d, unsigned int n)
+{
+ ExifMnoteDataPentax *note = (ExifMnoteDataPentax *) d;
+
+ if (!note) return 0;
+ if (note->count <= n) return 0;
+ return note->entries[n].tag;
+}
+
+static const char *
+exif_mnote_data_pentax_get_name (ExifMnoteData *d, unsigned int n)
+{
+ ExifMnoteDataPentax *note = (ExifMnoteDataPentax *) d;
+
+ if (!note) return NULL;
+ if (note->count <= n) return NULL;
+ return mnote_pentax_tag_get_name (note->entries[n].tag);
+}
+
+static const char *
+exif_mnote_data_pentax_get_title (ExifMnoteData *d, unsigned int n)
+{
+ ExifMnoteDataPentax *note = (ExifMnoteDataPentax *) d;
+
+ if (!note) return NULL;
+ if (note->count <= n) return NULL;
+ return mnote_pentax_tag_get_title (note->entries[n].tag);
+}
+
+static const char *
+exif_mnote_data_pentax_get_description (ExifMnoteData *d, unsigned int n)
+{
+ ExifMnoteDataPentax *note = (ExifMnoteDataPentax *) d;
+
+ if (!note) return NULL;
+ if (note->count <= n) return NULL;
+ return mnote_pentax_tag_get_description (note->entries[n].tag);
+}
+
+static void
+exif_mnote_data_pentax_set_offset (ExifMnoteData *d, unsigned int o)
+{
+ if (d) ((ExifMnoteDataPentax *) d)->offset = o;
+}
+
+static void
+exif_mnote_data_pentax_set_byte_order (ExifMnoteData *d, ExifByteOrder o)
+{
+ ExifByteOrder o_orig;
+ ExifMnoteDataPentax *n = (ExifMnoteDataPentax *) d;
+ unsigned int i;
+
+ if (!n) return;
+
+ o_orig = n->order;
+ n->order = o;
+ for (i = 0; i < n->count; i++) {
+ n->entries[i].order = o;
+ exif_array_set_byte_order (n->entries[i].format, n->entries[i].data,
+ n->entries[i].components, o_orig, o);
+ }
+}
+
+ExifMnoteData *
+exif_mnote_data_pentax_new (ExifMem *mem)
+{
+ ExifMnoteData *d;
+
+ if (!mem) return NULL;
+
+ d = exif_mem_alloc (mem, sizeof (ExifMnoteDataPentax));
+ if (!d) return NULL;
+
+ exif_mnote_data_construct (d, mem);
+
+ /* Set up function pointers */
+ d->methods.free = exif_mnote_data_pentax_free;
+ d->methods.set_byte_order = exif_mnote_data_pentax_set_byte_order;
+ d->methods.set_offset = exif_mnote_data_pentax_set_offset;
+ d->methods.load = exif_mnote_data_pentax_load;
+ d->methods.count = exif_mnote_data_pentax_count;
+ d->methods.get_id = exif_mnote_data_pentax_get_id;
+ d->methods.get_name = exif_mnote_data_pentax_get_name;
+ d->methods.get_title = exif_mnote_data_pentax_get_title;
+ d->methods.get_description = exif_mnote_data_pentax_get_description;
+ d->methods.get_value = exif_mnote_data_pentax_get_value;
+
+ return d;
+}
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