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/* pdfobj.h
Copyright 2009-2011 Taco Hoekwater <taco@luatex.org>
This file is part of LuaTeX.
LuaTeX 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.
LuaTeX 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 Lesser General Public
License for more details.
You should have received a copy of the GNU General Public License along
with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */
/* $Id: pdfobj.h 4184 2011-04-19 21:15:22Z hhenkel $ */
#ifndef PDFOBJ_H
# define PDFOBJ_H
/* data structure for \.{\\pdfobj} and \.{\\pdfrefobj} */
# define set_pdf_obj_objnum(A, B) pdf_obj_objnum(A) = (B)
# define pdfmem_obj_size 5 /* size of memory in |mem| which |obj_data_ptr| holds */
# define obj_obj_data(pdf, A) pdf->mem[obj_data_ptr((pdf), (A)) + 0] /* object data */
# define obj_obj_stream_attr(pdf, A) pdf->mem[obj_data_ptr((pdf), (A)) + 1] /* additional attributes into stream dict */
# define obj_obj_flags(pdf, A) pdf->mem[obj_data_ptr((pdf), (A)) + 2] /* stream/file flags */
# define obj_obj_pdfcompresslevel(pdf, A) pdf->mem[obj_data_ptr((pdf), (A)) + 3] /* overrides \pdfcompresslevel */
# define obj_obj_objstm_threshold(pdf, A) pdf->mem[obj_data_ptr((pdf), (A)) + 4] /* for object stream compression */
/* define set_obj_obj_data(pdf, A, B) obj_obj_data((pdf), (A)) = (B) */
/* define set_obj_obj_flags(pdf, A, B) obj_obj_flags((pdf), (A)) = (B) */
/* define set_obj_obj_stream_attr(pdf, A, B) obj_obj_stream_attr((pdf), (A)) = (B) */
/* define set_obj_obj_pdfcompresslevel(pdf, A, B) obj_obj_pdfcompresslevel((pdf), (A)) = (B) */
/* define set_obj_obj_objstm_threshold(pdf, A, B) obj_obj_objstm_threshold((pdf), (A)) = (B) */
/**********************************************************************/
# define OBJ_FLAG_ISSTREAM (1 << 0)
# define OBJ_FLAG_ISFILE (1 << 1)
# define obj_obj_is_stream(pdf,A) ((obj_obj_flags((pdf), (A)) & OBJ_FLAG_ISSTREAM) != 0)
# define set_obj_obj_is_stream(pdf,A) ((obj_obj_flags((pdf), (A)) |= OBJ_FLAG_ISSTREAM))
# define unset_obj_obj_is_stream(pdf,A) ((obj_obj_flags((pdf), (A)) &= ~OBJ_FLAG_ISSTREAM))
# define obj_obj_is_file(pdf,A) ((obj_obj_flags((pdf), (A)) & OBJ_FLAG_ISFILE) != 0)
# define set_obj_obj_is_file(pdf,A) ((obj_obj_flags((pdf), (A)) |= OBJ_FLAG_ISFILE))
# define unset_obj_obj_is_file(pdf,A) ((obj_obj_flags((pdf), (A)) &= ~OBJ_FLAG_ISFILE))
/**********************************************************************/
extern int pdf_last_obj;
extern void init_obj_obj(PDF pdf, int k);
extern void pdf_write_obj(PDF pdf, int n);
extern void scan_obj(PDF pdf);
extern void scan_refobj(PDF pdf);
extern void scan_refobj_lua(PDF pdf, int k);
extern void pdf_ref_obj(PDF pdf, halfword p);
extern void pdf_ref_obj_lua(PDF pdf, int k);
#endif
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