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/**
*
* ***** 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);
}
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