int iclose(RGB_IMAGE *image) {
long tablesize, ret;
iflush(image);
img_optseek(image, 0);
if (image->flags&_IOWRT) {
if (image->dorev)
cvtimage((long *)image);
swapImage(image) ;
if (img_write(image,(char *)image,sizeof(RGB_IMAGE)) != sizeof(RGB_IMAGE)) {
i_errhdlr("iclose: error on write of image header\n",0,0,0,0);
return EOF;
}
swapImage(image) ;
if (image->dorev)
cvtimage((long *)image);
if (ISRLE(image->type)) {
img_optseek(image, 512L);
tablesize = image->ysize*image->zsize*sizeof(long);
if (image->dorev)
cvtlongs((long *)image->rowstart,(long)tablesize);
if (img_write(image,(char *)(image->rowstart),tablesize) != tablesize) {
i_errhdlr("iclose: error on write of rowstart\n",0,0,0,0);
return EOF;
}
if (image->dorev)
cvtlongs((long *)image->rowsize,tablesize);
if (img_write(image,(char *)(image->rowsize),tablesize) != tablesize) {
i_errhdlr("iclose: error on write of rowsize\n",0,0,0,0);
return EOF;
}
}
}
if (image->base) {
free(image->base);
image->base = 0;
}
if (image->tmpbuf) {
free(image->tmpbuf);
image->tmpbuf = 0;
}
if (ISRLE(image->type)) {
free(image->rowstart);
image->rowstart = 0;
free(image->rowsize);
image->rowsize = 0;
}
ret = close(image->file);
if (ret != 0)
i_errhdlr("iclose: error on close of file\n",0,0,0,0);
free(image);
return ret;
}
unsigned int img_seek(IMAGE *image, unsigned int y, unsigned int z)
{
if(img_badrow(image,y,z)) {
i_errhdlr("img_seek: row number out of range\n");
return EOF;
}
image->x = 0;
image->y = y;
image->z = z;
if(ISVERBATIM(image->type)) {
switch(image->dim) {
case 1:
return img_optseek(image, 512);
case 2:
return img_optseek(image,512+(y*image->xsize)*BPP(image->type));
case 3:
return img_optseek(image,
512+(y*image->xsize+z*image->xsize*image->ysize)*
BPP(image->type));
default:
i_errhdlr("img_seek: weird dim\n");
break;
}
} else if(ISRLE(image->type)) {
switch(image->dim) {
case 1:
return img_optseek(image, image->rowstart[0]);
case 2:
return img_optseek(image, image->rowstart[y]);
case 3:
return img_optseek(image, image->rowstart[y+z*image->ysize]);
default:
i_errhdlr("img_seek: weird dim\n");
break;
}
} else
i_errhdlr("img_seek: weird image type\n");
return((unsigned int)-1);
}
