Initial commit

engines/qdengine/parser/xml_parser.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "common/file.h"
+#include "common/textconsole.h"
+
+#include "qdengine/qd_fwd.h"
+#include "qdengine/parser/xml_parser.h"
+
+namespace QDEngine {
+
+namespace xml {
+
+parser::parser() : _cur_level(0), _skip_mode(false), _binary_script(false) {
+	_root_tag.set_data(&_data_pool);
+}
+
+parser::~parser() {
+}
+
+void parser::clear() {
+	_root_tag.clear();
+	while (!_tag_stack.empty()) _tag_stack.pop();
+
+	_cur_level = 0;
+	_skip_mode = false;
+
+	_data_pool.clear();
+	Std::vector<char>(_data_pool).swap(_data_pool);
+}
+
+bool parser::parse_file(const char *fname) {
+	if (is_script_binary(fname))
+		return read_binary_script(fname);
+
+	return false;
+}
+
+
+bool tag::readTag(Common::SeekableReadStream *ff, tag &tg) {
+	uint32 id = ff->readUint32LE();
+	uint32 data_format = ff->readUint32LE();
+	uint32 data_size = ff->readUint32LE();
+	uint32 data_offset = ff->readUint32LE();
+
+	tg = tag(tag(id, tag::tag_data_format(data_format), data_size, data_offset));
+
+	uint32 num_subtags = ff->readUint32LE();
+
+	for (uint32 i = 0; i < num_subtags; i++) {
+		tag stg;
+		readTag(ff, stg);
+
+		tg.add_subtag(stg);
+	}
+
+	return true;
+}
+
+bool parser::read_binary_script(const char *fname) {
+	Common::File ff;
+	ff.open(fname);
+
+	_binary_script = true;
+
+	/* uint32 v = */ff.readUint32LE();
+	uint32 size = ff.readUint32LE();
+
+	if (_data_pool.size() < size)
+		_data_pool.resize(size);
+
+	ff.read(&*_data_pool.begin(), size);
+
+	_root_tag.clear();
+	_root_tag.readTag(&ff, _root_tag);
+
+	_root_tag.set_data(&_data_pool);
+
+	ff.close();
+
+	return true;
+}
+
+bool parser::is_script_binary(const char *fname) const {
+	Common::File ff;
+	ff.open(fname);
+
+	uint32 v = ff.readUint32LE();
+
+	if (v == 8383) return true;
+
+	return false;
+}
+
+} /* namespace xml */
+
+} // namespace QDEngine