1 files changed, 297 insertions, 0 deletions
diff --git a/src/libexif/fuji/exif-mnote-data-fuji.c b/src/libexif/fuji/exif-mnote-data-fuji.c
new file mode 100644
index 0000000..b7b311b
--- /dev/null
+++ b/src/libexif/fuji/exif-mnote-data-fuji.c
@@ -0,0 +1,297 @@
+/* exif-mnote-data-fuji.c
+ *
+ * Copyright (c) 2002 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 <stdlib.h>
+#include <string.h>
+
+
+#include <config.h>
+#include <libexif/exif-byte-order.h>
+#include <libexif/exif-utils.h>
+
+#include "exif-mnote-data-fuji.h"
+
+struct _MNoteFujiDataPrivate {
+	ExifByteOrder order;
+};
+
+static void
+exif_mnote_data_fuji_clear (ExifMnoteDataFuji *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_fuji_free (ExifMnoteData *n)
+{
+	if (!n) return;
+
+	exif_mnote_data_fuji_clear ((ExifMnoteDataFuji *) n);
+}
+
+static char *
+exif_mnote_data_fuji_get_value (ExifMnoteData *d, unsigned int i, char *val, unsigned int maxlen)
+{
+	ExifMnoteDataFuji *n = (ExifMnoteDataFuji *) d;
+
+	if (!d || !val) return NULL;
+	if (i > n->count -1) return NULL;
+	exif_log (d->log, EXIF_LOG_CODE_DEBUG, "ExifMnoteDataFuji",
+		  "Querying value for tag '%s'...",
+		  mnote_fuji_tag_get_name (n->entries[i].tag));
+	return mnote_fuji_entry_get_value (&n->entries[i], val, maxlen);
+}
+
+static void
+exif_mnote_data_fuji_save (ExifMnoteData *ne, unsigned char **buf,
+			   unsigned int *buf_size)
+{
+	ExifMnoteDataFuji *n = (ExifMnoteDataFuji *) ne;
+	size_t i, o, s, doff;
+	unsigned char *t;
+	size_t ts;
+
+	if (!n || !buf || !buf_size) return;
+
+	/*
+	 * Allocate enough memory for all entries and the number
+	 * of entries.
+	 */
+	*buf_size = 8 + 4 + 2 + n->count * 12 + 4;
+	*buf = exif_mem_alloc (ne->mem, *buf_size);
+	if (!*buf) {
+		*buf_size = 0;
+		return;
+	}
+
+	/*
+	 * Header: "FUJIFILM" and 4 bytes offset to the first entry.
+	 * As the first entry will start right thereafter, the offset is 12.
+	 */
+	memcpy (*buf, "FUJIFILM", 8);
+	exif_set_long (*buf + 8, n->order, 12);
+
+	/* Save the number of entries */
+	exif_set_short (*buf + 8 + 4, n->order, (ExifShort) n->count);
+	
+	/* Save each entry */
+	for (i = 0; i < n->count; i++) {
+		o = 8 + 4 + 2 + i * 12;
+		exif_set_short (*buf + o + 0, n->order, (ExifShort) n->entries[i].tag);
+		exif_set_short (*buf + o + 2, n->order, (ExifShort) n->entries[i].format);
+		exif_set_long  (*buf + o + 4, n->order, n->entries[i].components);
+		o += 8;
+		s = exif_format_get_size (n->entries[i].format) *
+						n->entries[i].components;
+		if (s > 65536) {
+			/* Corrupt data: EXIF data size is limited to the
+			 * maximum size of a JPEG segment (64 kb).
+			 */
+			continue;
+		}
+		if (s > 4) {
+			ts = *buf_size + s;
+
+			/* Ensure even offsets. Set padding bytes to 0. */
+			if (s & 1) ts += 1;
+			t = exif_mem_realloc (ne->mem, *buf, ts);
+			if (!t) {
+				return;
+			}
+			*buf = t;
+			*buf_size = ts;
+			doff = *buf_size - s;
+			if (s & 1) { doff--; *(*buf + *buf_size - 1) = '\0'; }
+			exif_set_long (*buf + o, n->order, doff);
+		} else
+			doff = o;
+
+		/*
+		 * Write the data. Fill unneeded bytes with 0. Do not
+		 * crash if data is NULL.
+		 */
+		if (!n->entries[i].data) memset (*buf + doff, 0, s);
+		else memcpy (*buf + doff, n->entries[i].data, s);
+	}
+}
+
+static void
+exif_mnote_data_fuji_load (ExifMnoteData *en,
+	const unsigned char *buf, unsigned int buf_size)
+{
+	ExifMnoteDataFuji *n = (ExifMnoteDataFuji*) en;
+	ExifLong c;
+	size_t i, o, s, datao = 6 + n->offset;
+	MnoteFujiEntry *t;
+
+	if (!n || !buf || !buf_size || (buf_size < datao + 12)) return;
+
+	/* Read the number of entries and remove old ones. */
+	n->order = EXIF_BYTE_ORDER_INTEL;
+	datao += exif_get_long (buf + datao + 8, EXIF_BYTE_ORDER_INTEL);
+	c = exif_get_short (buf + datao, EXIF_BYTE_ORDER_INTEL);
+	datao += 2;
+	exif_mnote_data_fuji_clear (n);
+
+	/* Parse the entries */
+	for (i = 0; i < c; i++) {
+		o = datao + 12 * i;
+		if (datao + 12 > buf_size) return;
+
+		t = exif_mem_realloc (en->mem, n->entries,
+				sizeof (MnoteFujiEntry) * (i + 1));
+		if (!t) return;
+		n->count = i + 1;
+		n->entries = t;
+		memset (&n->entries[i], 0, sizeof (MnoteFujiEntry));
+		n->entries[i].tag        = exif_get_short (buf + o, 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 + n->offset;
+		if (o + s > buf_size) return;
+
+		/* Sanity check */
+		n->entries[i].data = exif_mem_alloc (en->mem, 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_fuji_count (ExifMnoteData *n)
+{
+	return n ? ((ExifMnoteDataFuji *) n)->count : 0;
+}
+
+static unsigned int
+exif_mnote_data_fuji_get_id (ExifMnoteData *d, unsigned int n)
+{
+	ExifMnoteDataFuji *note = (ExifMnoteDataFuji *) d;
+
+	if (!note) return 0;
+	if (note->count <= n) return 0;
+	return note->entries[n].tag;
+}
+
+static const char *
+exif_mnote_data_fuji_get_name (ExifMnoteData *d, unsigned int i)
+{
+	ExifMnoteDataFuji *n = (ExifMnoteDataFuji *) d;
+
+	if (!n) return NULL;
+	if (i >= n->count) return NULL;
+	return mnote_fuji_tag_get_name (n->entries[i].tag);
+}
+
+static const char *
+exif_mnote_data_fuji_get_title (ExifMnoteData *d, unsigned int i)
+{
+	ExifMnoteDataFuji *n = (ExifMnoteDataFuji *) d;
+	
+	if (!n) return NULL;
+	if (i >= n->count) return NULL;
+        return mnote_fuji_tag_get_title (n->entries[i].tag);
+}
+
+static const char *
+exif_mnote_data_fuji_get_description (ExifMnoteData *d, unsigned int i)
+{
+	ExifMnoteDataFuji *n = (ExifMnoteDataFuji *) d;
+	
+	if (!n) return NULL;
+	if (i >= n->count) return NULL;
+        return mnote_fuji_tag_get_description (n->entries[i].tag);
+}
+
+static void
+exif_mnote_data_fuji_set_byte_order (ExifMnoteData *d, ExifByteOrder o)
+{
+	ExifByteOrder o_orig;
+	ExifMnoteDataFuji *n = (ExifMnoteDataFuji *) 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);
+	}
+}
+
+static void
+exif_mnote_data_fuji_set_offset (ExifMnoteData *n, unsigned int o)
+{
+	if (n) ((ExifMnoteDataFuji *) n)->offset = o;
+}
+
+ExifMnoteData *
+exif_mnote_data_fuji_new (ExifMem *mem)
+{
+	ExifMnoteData *d;
+
+	if (!mem) return NULL;
+
+	d = exif_mem_alloc (mem, sizeof (ExifMnoteDataFuji));
+	if (!d) return NULL;
+
+	exif_mnote_data_construct (d, mem);
+
+	/* Set up function pointers */
+	d->methods.free            = exif_mnote_data_fuji_free;
+	d->methods.set_byte_order  = exif_mnote_data_fuji_set_byte_order;
+	d->methods.set_offset      = exif_mnote_data_fuji_set_offset;
+	d->methods.load            = exif_mnote_data_fuji_load;
+	d->methods.save            = exif_mnote_data_fuji_save;
+	d->methods.count           = exif_mnote_data_fuji_count;
+	d->methods.get_id          = exif_mnote_data_fuji_get_id;
+	d->methods.get_name        = exif_mnote_data_fuji_get_name;
+	d->methods.get_title       = exif_mnote_data_fuji_get_title;
+	d->methods.get_description = exif_mnote_data_fuji_get_description;
+	d->methods.get_value       = exif_mnote_data_fuji_get_value;
+
+	return d;
+}