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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 *****
* iff.c
*
* $Id$
*/
#include "BLI_blenlib.h"
#include "imbuf.h"
#include "imbuf_patch.h"
#include "IMB_imbuf_types.h"
#include "IMB_iff.h"
unsigned short imb_start_iff(struct ImBuf *ibuf, int file)
{
unsigned int *point, size, *buf;
if ((point=buf=(unsigned int *)malloc(32768))==0) return FALSE;
*point++ = FORM; /* FORMxxxxILBM in buffer */
*point++ = 0;
if (IS_amiga(ibuf)){
struct BitMapHeader *bmhd;
*point++ = ILBM;
*point++ = CAMG;
*point++ = 4;
*point++ = (ibuf->ftype & 0xffff);
*point++=BMHD;
*point++=sizeof(struct BitMapHeader);
bmhd=(struct BitMapHeader *)point; /* bmhd wijst naar plek waar bmhd moet komen */
point=(unsigned int *)((char *)point+sizeof(struct BitMapHeader)); /* pointer alvast verder zetten */
bmhd->w=ibuf->x;
bmhd->h=ibuf->y;
bmhd->pageWidth=ibuf->x;
bmhd->pageHeight=ibuf->y;
bmhd->x=0;
bmhd->y=0;
bmhd->nPlanes=ibuf->depth;
bmhd->masking=0;
if (ibuf->flags & IB_vert){
bmhd->compression=2;
}
else{
bmhd->compression=1;
}
bmhd->pad1=0;
bmhd->transparentColor=0;
bmhd->xAspect=1;
bmhd->yAspect=1;
} else if (IS_anim(ibuf)){
struct Adat *adat;
extern float adat_gamma;
extern float adat_distort;
*point++ = ANIM;
*point++ = ADAT;
*point++ = BIG_LONG(sizeof(struct Adat));
adat = (struct Adat *)point;
point = (unsigned int *)((char *)point+sizeof(struct Adat)); /* pointer alvast verder zetten */
adat->w = BIG_SHORT(ibuf->x);
adat->h = BIG_SHORT(ibuf->y);
adat->type = BIG_SHORT(ibuf->ftype);
adat->xorig = BIG_SHORT(ibuf->xorig);
adat->yorig = BIG_SHORT(ibuf->yorig);
adat->pad = 0;
adat->gamma = adat_gamma;
adat->distort = adat_distort;
}
size=((uchar *)point-(uchar *)buf);
if (write(file,buf,size)!=size){
free(buf);
return (FALSE);
}
if (ibuf->cmap){
if (IS_anim(ibuf)){
size = ibuf->maxcol * sizeof(int);
buf[0] = CMAP;
buf[1] = BIG_LONG(size);
if (write(file,buf,8) != 8){
free(buf);
return (FALSE);
}
if (write(file,ibuf->cmap,size) != size){
free(buf);
return (FALSE);
}
} else{
uchar *cpoint,*cols;
unsigned int i,bits;
point = buf;
if (IS_amiga(ibuf)){
*(point++) = CMAP;
*(point++) = BIG_LONG(3*ibuf->maxcol);
}
cpoint = (uchar *) point;
cols = (uchar *)ibuf->cmap;
if ((ibuf->cbits > 0) && (ibuf->cbits < 8)){
bits = ~((1 << (8-ibuf->cbits)) - 1);
} else bits = -1;
if (IS_ham(ibuf)) bits = -1;
for (i=0 ; i<ibuf->maxcol ; i++){
*(cpoint++) = cols[0] & bits;
*(cpoint++) = cols[1] & bits;
*(cpoint++) = cols[2] & bits;
cols += 4;
}
if (ibuf->maxcol & 1) *(cpoint++)=0;
size=(cpoint-(uchar *)buf);
if (write(file,buf,size)!=size){
free(buf);
return (FALSE);
}
}
}
if (IS_amiga(ibuf)) buf[0] = BODY;
if (IS_anim(ibuf)) buf[0] = BODY;
buf[1]=0;
if (write(file,buf,8)!=8){
free(buf);
return(FALSE);
}
free(buf);
return (TRUE);
}
unsigned short imb_update_iff(int file, int code)
{
int buf[2], filelen, skip;
uchar nop;
if (file<=0) return (FALSE);
filelen = BLI_filesize(file)-8; /* filelengte berekenen */
lseek(file,0L,2); /* seek end */
if (filelen & 1){ /* lengte even maken */
switch(code){
case BODY:
nop = IFFNOP;
break;
}
if (write(file,&nop,1)!=1) return (FALSE);
filelen++;
}
lseek(file,4L,0);
buf[0] = BIG_LONG(filelen);
if (write(file, buf, 4) != 4) return (FALSE);
if (code == 0) return (TRUE);
filelen-=4;
lseek(file,4L,1);
while (filelen>0){ /* zoek BODY op */
read(file, buf, 8);
filelen -= 8;
if (buf[0] == code) break;
skip = BIG_LONG(buf[1]) + 1 & ~1;
filelen -= skip;
lseek(file, skip, 1);
}
if (filelen <= 0) {
printf("update_iff: couldn't find chunk\n");
return (FALSE);
}
lseek(file, -4L, 1);
buf[0] = BIG_LONG(filelen);
if (write(file, buf, 4)!=4) return (FALSE);
return (TRUE);
}
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