1 files changed, 90 insertions, 0 deletions
diff --git a/source/blender/imbuf/intern/util.c b/source/blender/imbuf/intern/util.c
new file mode 100644
index 00000000000..52a29217bef
--- /dev/null
+++ b/source/blender/imbuf/intern/util.c
@@ -0,0 +1,90 @@
+/**
+ *
+ * ***** BEGIN GPL/BL DUAL 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. The Blender
+ * Foundation also sells licenses for use in proprietary software under
+ * the Blender License.  See http://www.blender.org/BL/ for information
+ * about this.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s): none yet.
+ *
+ * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ * util.c
+ *
+ * $Id$
+ */
+
+#include "BLI_blenlib.h"
+
+#include "imbuf.h"
+#include "imbuf_patch.h"
+#include "IMB_imbuf_types.h"
+#include "IMB_imbuf.h"
+
+#include "IMB_targa.h"
+#include "IMB_png.h"
+
+/* from misc_util: flip the bytes from x  */
+#define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1])
+
+/* this one is only def-ed once, strangely... */
+#define GSS(x) (((uchar *)(x))[1] << 8 | ((uchar *)(x))[0])
+
+int IMB_ispic(char *name)
+{
+	struct stat st;
+	int fp, buf[10];
+	int ofs = 0;
+	
+	if (ib_stat(name,&st) == -1) return(0);
+	if (((st.st_mode) & S_IFMT) == S_IFREG){
+		if ((fp = open(name,O_BINARY|O_RDONLY)) >= 0){
+			if (read(fp,buf,32)==32){
+				close(fp);
+				if (buf[ofs] == CAT) ofs += 3;
+				if (buf[ofs] == FORM){
+					if (buf[ofs + 2] == ILBM) return(AMI);
+					if (buf[ofs + 2] == ANIM){
+						if (buf[ofs + 3] == FORM){
+							return(ANIM);
+						}else{
+							return(Anim);
+						}
+					}
+				} else {
+					if (GS(buf) == IMAGIC) return(IMAGIC);
+					if (GSS(buf) == IMAGIC) return(IMAGIC);
+					if ((BIG_LONG(buf[0]) & 0xfffffff0) == 0xffd8ffe0) return(JPG);
+
+					/* at windows there are ".ffl" files with the same magic numnber... 
+					   besides that,  tim images are not really important anymore! */
+					/* if ((BIG_LONG(buf[0]) == 0x10000000) && ((BIG_LONG(buf[1]) & 0xf0ffffff) == 0)) return(TIM); */
+
+				}
+				if (imb_is_a_png(buf)) return(PNG);
+				if (imb_is_a_targa(buf)) return(TGA);
+				return(FALSE);
+			}
+			close(fp);
+		}
+	}
+	return(FALSE);
+}