gameinfo.cc

/*
 * This file is part of the Advance project.
 *
 * Copyright (C) 2003 Andrea Mazzoleni
 *
 * 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 the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "portable.h"

#include "game.h"
#include "strcov.h"
#include "lib/readinfo.h"

using namespace std;

extern "C" int info_ext_get(void* _arg)
{
	istream* arg = static_cast<istream*>(_arg);
	return arg->get();
}

extern "C" void info_ext_unget(void* _arg, char c)
{
	istream* arg = static_cast<istream*>(_arg);
	arg->putback(c);
}

bool gamearchive::load_info_internal()
{
	info_t token = info_token_get();
	while (token!=info_eof) {
		if (token != info_symbol) return false;
		if (strcmp(info_text_get(), "game")==0 || strcmp(info_text_get(), "resource")==0 || strcmp(info_text_get(), "machine")==0) {
			game g;
			g.resource_set(strcmp(info_text_get(), "resource")==0);
			if (info_token_get() != info_open) return false;
			token = info_token_get();
			while (token != info_close) {
				if (token != info_symbol)
					return false;
				if (strcmp(info_text_get(), "name")==0) {
					if (info_token_get() != info_symbol) return false;
					g.name_set(info_text_get());
				} else if (strcmp(info_text_get(), "description")==0) {
					if (info_token_get() != info_string) return false;
					g.description_set(info_text_get());
				} else if (strcmp(info_text_get(), "manufacturer")==0) {
					if (info_token_get() != info_string) return false;
					g.manufacturer_set(info_text_get());
				} else if (strcmp(info_text_get(), "year")==0) {
					if (info_token_get() != info_symbol) return false;
					g.year_set(info_text_get());
				} else if (strcmp(info_text_get(), "cloneof")==0) {
					if (info_token_get() != info_symbol) return false;
					g.cloneof_set(info_text_get());
				} else if (strcmp(info_text_get(), "romof")==0) {
					if (info_token_get() != info_symbol) return false;
					g.romof_set(info_text_get());
				} else if (strcmp(info_text_get(), "sampleof")==0) {
					if (info_token_get() != info_symbol) return false;
					g.sampleof_set(info_text_get());
				} else if (strcmp(info_text_get(), "rom")==0) {
					if (info_token_get() != info_open)  return false;
					rom r;
					token = info_token_get();
					while (token != info_close) {
						if (token != info_symbol) return false;
						if (strcmp(info_text_get(), "name")==0) {
							if (info_token_get() != info_symbol) return false;
							r.name_set(info_text_get());
						} else if (strcmp(info_text_get(), "size")==0) {
							const char* e;
							if (info_token_get() != info_symbol) return false;
							unsigned v = strdec(info_text_get(), &e);
							if (*e != 0)
								return false;
							r.size_set(v);
						} else if (strcmp(info_text_get(), "crc")==0) {
							const char* e;
							const char* n;
							if (info_token_get() != info_symbol) return false;
							n = info_text_get();
							if (n[0] == '0' && n[1] == 'x')
								n += 2;
							unsigned v = strhex(n, &e);
							if (*e != 0)
								return false;
							r.crc_set(v);
						} else if (strcmp(info_text_get(), "flags")==0) {
							if (info_token_get() != info_symbol) return false;
							if (strcmp(info_text_get(), "nodump")==0)
								r.nodump_set(true);
						} else {
							if (info_skip_value() == info_error) return false;
						}
						token = info_token_get();
					}
					g.rs_get().insert(r);
				} else if (strcmp(info_text_get(), "driver")==0) {
					if (info_token_get() != info_open)  return false;
					token = info_token_get();
					while (token != info_close) {
						if (token != info_symbol) return false;
						if (strcmp(info_text_get(), "status")==0) {
							if (info_token_get() != info_symbol) return false;
							if (strcmp(info_text_get(), "preliminary") == 0)
								g.working_set(false);
						} else {
							if (info_skip_value() == info_error) return false;
						}
						token = info_token_get();
					}
				} else if (strcmp(info_text_get(), "sample")==0) {
					if (info_token_get() != info_symbol) return false;
					sample s(info_text_get());
					g.ss_get().insert(s);
				} else {
					if (info_skip_value() == info_error) return false;
				}
				token = info_token_get();
			}
			map.insert(g);
		} else {
			if (info_skip_value() == info_error) return false;
		}
		token = info_token_get();
	}

	return true;
}

void gamearchive::load_info(istream& f)
{
	info_init(info_ext_get, info_ext_unget, &f);

	bool r = load_info_internal();

	if (!r) {
		unsigned row = info_row_get()+1;
		unsigned col = info_col_get()+1;
		info_done();
		throw error() << "Invalid data at row " << row << " at column " << col << ".";
	}

	info_done();
}