96 lines
2.7 KiB
C
96 lines
2.7 KiB
C
/**
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*
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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* util.c
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*
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* $Id$
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*/
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#include "BLI_blenlib.h"
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#include "imbuf.h"
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#include "imbuf_patch.h"
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#include "IMB_imbuf_types.h"
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#include "IMB_imbuf.h"
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#include "IMB_targa.h"
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#include "IMB_png.h"
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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/* from misc_util: flip the bytes from x */
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#define GS(x) (((unsigned char *)(x))[0] << 8 | ((unsigned char *)(x))[1])
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/* this one is only def-ed once, strangely... */
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#define GSS(x) (((uchar *)(x))[1] << 8 | ((uchar *)(x))[0])
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int IMB_ispic(char *name)
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{
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struct stat st;
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int fp, buf[64];
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int ofs = 0;
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if (ib_stat(name,&st) == -1) return(0);
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if (((st.st_mode) & S_IFMT) == S_IFREG){
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if ((fp = open(name,O_BINARY|O_RDONLY)) >= 0){
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if (read(fp,buf,64)==64){
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close(fp);
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if (buf[ofs] == CAT) ofs += 3;
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if (buf[ofs] == FORM){
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if (buf[ofs + 2] == ILBM) return(AMI);
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if (buf[ofs + 2] == ANIM){
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if (buf[ofs + 3] == FORM){
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return(ANIM);
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}else{
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return(Anim);
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}
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}
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} else {
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if (GS(buf) == IMAGIC) return(IMAGIC);
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if (GSS(buf) == IMAGIC) return(IMAGIC);
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if ((BIG_LONG(buf[0]) & 0xfffffff0) == 0xffd8ffe0) return(JPG);
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/* at windows there are ".ffl" files with the same magic numnber...
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besides that, tim images are not really important anymore! */
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/* if ((BIG_LONG(buf[0]) == 0x10000000) && ((BIG_LONG(buf[1]) & 0xf0ffffff) == 0)) return(TIM); */
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}
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if (imb_is_a_png(buf)) return(PNG);
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if (imb_is_a_targa(buf)) return(TGA);
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if (imb_is_a_bmp(buf)) return(BMP);
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return(FALSE);
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}
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close(fp);
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}
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}
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return(FALSE);
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}
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