1 files changed, 159 insertions, 0 deletions
diff --git a/source/blender/imbuf/intern/metadata.c b/source/blender/imbuf/intern/metadata.c
new file mode 100644
index 00000000000..38ffa2fe2fa
--- /dev/null
+++ b/source/blender/imbuf/intern/metadata.c
@@ -0,0 +1,159 @@
+/**
+ * $Id$
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. 
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2005 Blender Foundation
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): Austin Benesh. Ton Roosendaal.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "BLI_blenlib.h"
+#include "MEM_guardedalloc.h"
+
+#include "IMB_imbuf_types.h"
+#include "IMB_imbuf.h"
+
+#include "IMB_metadata.h"
+
+
+
+void IMB_metadata_free(struct ImBuf* img)
+{
+	ImMetaData *info;
+
+	if (!img)
+		return;
+	if (!img->metadata) {
+		return;
+	}
+	info = img->metadata;
+	while (info) {
+		ImMetaData* next = info->next;
+		MEM_freeN(info->key);
+		MEM_freeN(info->value);
+		MEM_freeN(info);
+		info = next;
+	}
+}
+
+int IMB_metadata_get_field(struct ImBuf* img, const char* key, char* field, int len)
+{
+	ImMetaData *info;
+	int retval = 0;
+
+	if (!img)
+		return 0;
+	if (!img->metadata) {
+		return 0;
+	}
+	info = img->metadata;
+	while (info) {
+		if (strcmp(key, info->key) == 0) {
+			BLI_strncpy(field, info->value, len);
+			retval = 1;
+			break;
+		}
+		info = info->next;
+	}
+	return retval;
+}
+
+int IMB_metadata_add_field(struct ImBuf* img, const char* key, const char* field)
+{
+	ImMetaData *info;
+	ImMetaData *last;
+
+	if (!img)
+		return 0;
+
+	if (!img->metadata) {
+		img->metadata = MEM_callocN(sizeof(ImMetaData), "ImMetaData");
+		info = img->metadata;
+	} else {
+		info = img->metadata;
+		last = info;
+		while (info) {
+			last = info;
+			info = info->next;
+		}
+		info = MEM_callocN(sizeof(ImMetaData), "ImMetaData");
+		last->next = info;
+	}
+	info->key = BLI_strdup(key);
+	info->value = BLI_strdup(field);
+	return 1;
+}
+
+int IMB_metadata_del_field(struct ImBuf *img, const char *key)
+{
+	ImMetaData *p, *p1;
+
+	if ((!img) || (!img->metadata))
+		return (0);
+
+	p = img->metadata;
+	p1 = NULL;
+	while (p) {
+		if (!strcmp (key, p->key)) {
+			if (p1)
+				p1->next = p->next;
+			else
+				img->metadata = p->next;
+
+			MEM_freeN(p->key);
+			MEM_freeN(p->value);
+			MEM_freeN(p);
+			return (1);
+		}
+		p1 = p;
+		p = p->next;
+	}
+	return (0);
+}
+
+int IMB_metadata_change_field(struct ImBuf *img, const char *key, const char *field)
+{
+	ImMetaData *p;
+
+	if (!img)
+		return (0);
+
+	if (!img->metadata)
+		return (IMB_metadata_add_field (img, key, field));
+
+	p = img->metadata;
+	while (p) {
+		if (!strcmp (key, p->key)) {
+			MEM_freeN (p->value);
+			p->value = BLI_strdup (field);
+			return (1);
+		}
+		p = p->next;
+	}
+
+	return (IMB_metadata_add_field (img, key, field));
+}
+