/*
	obj_file.h

	object file support

	Copyright (C) 2002 Bill Currie <bill@taniwha.org>

	Author: Bill Currie <bill@taniwha.org>
	Date: 2002/6/16

	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.

	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:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

#ifndef __obj_file_h
#define __obj_file_h

#include "QF/pr_comp.h"
#include "QF/pr_debug.h"

#define QFO			"QFO"
#define QFO_VERSION 0x00001003		// MMmmmRRR 0.001.002 (hex)

typedef struct qfo_header_s {
	char        qfo[4];
	int         version;
	int         code_size;
	int         data_size;
	int         far_data_size;
	int         strings_size;
	int         num_relocs;
	int         num_defs;
	int         num_functions;
	int         num_lines;
	int         types_size;
} qfo_header_t;

typedef struct qfo_def_s {
	etype_t     basic_type;
	string_t    full_type;
	string_t    name;
	int         ofs;

	int         relocs;
	int         num_relocs;

	unsigned    flags;

	string_t    file;
	int         line;
} qfo_def_t;

#define QFOD_INITIALIZED	(1u<<0)
#define QFOD_CONSTANT		(1u<<1)
#define QFOD_ABSOLUTE		(1u<<2)
#define QFOD_GLOBAL			(1u<<3)
#define QFOD_EXTERNAL		(1u<<4)
#define QFOD_LOCAL			(1u<<5)

typedef struct qfo_function_s {
	string_t    name;
	string_t    file;
	int         line;

	int         builtin;
	int         code;

	int         def;

	int         locals_size;
	int         local_defs;
	int         num_local_defs;

	int         line_info;

	int         num_parms;
	byte        parm_size[MAX_PARMS];

	int         relocs;
	int         num_relocs;
} qfo_function_t;

typedef struct qfo_reloc_s {
	int         ofs;
	int         type;
	int         def;
} qfo_reloc_t;

typedef struct qfo_s {
	dstatement_t *code;
	int         code_size;
	pr_type_t  *data;
	int         data_size;
	pr_type_t  *far_data;
	int         far_data_size;
	char       *strings;
	int         strings_size;
	qfo_reloc_t *relocs;
	int         num_relocs;
	qfo_def_t  *defs;
	int         num_defs;
	qfo_function_t *functions;
	int         num_functions;
	pr_lineno_t *lines;
	int         num_lines;
	char       *types;
	int         types_size;
} qfo_t;

#define QFO_var(q, t, o)	((q)->data[o].t##_var)
#define	QFO_FLOAT(q, o)		QFO_var (q, float, o)
#define	QFO_INT(q, o)		QFO_var (q, integer, o)
#define	QFO_VECTOR(q, o)	QFO_var (q, vector, o)
#define	QFO_STRING(q, o)	G_GETSTR (QFO_var (q, string, o))
#define	QFO_FUNCTION(q, o)	QFO_var (q, func, o)
#define QFO_POINTER(q, t,o)	((t *)((q)->data + o))
#define QFO_STRUCT(q, t,o)	(*QFO_POINTER (q, t, o))

struct pr_info_s;

qfo_t *qfo_from_progs (struct pr_info_s *pr);
int qfo_write (qfo_t *qfo, const char *filename);
qfo_t *qfo_read (const char *filename);
int qfo_to_progs (qfo_t *qfo, struct pr_info_s *pr);

qfo_t *qfo_new (void);
void qfo_add_code (qfo_t *qfo, dstatement_t *code, int code_size);
void qfo_add_data (qfo_t *qfo, pr_type_t *data, int data_size);
void qfo_add_far_data (qfo_t *qfo, pr_type_t *far_data, int far_data_size);
void qfo_add_strings (qfo_t *qfo, const char *strings, int strings_size);
void qfo_add_relocs (qfo_t *qfo, qfo_reloc_t *relocs, int num_relocs);
void qfo_add_defs (qfo_t *qfo, qfo_def_t *defs, int num_defs);
void qfo_add_functions (qfo_t *qfo, qfo_function_t *functions, int num_functions);
void qfo_add_lines (qfo_t *qfo, pr_lineno_t *lines, int num_lines);
void qfo_add_types (qfo_t *qfo, const char *types, int types_size);
void qfo_delete (qfo_t *qfo);

#endif//__obj_file_h