1 files changed, 115 insertions, 0 deletions
diff --git a/engines/lastexpress/data/archive.cpp b/engines/lastexpress/data/archive.cpp
new file mode 100644
index 0000000000..1a5b6905a3
--- /dev/null
+++ b/engines/lastexpress/data/archive.cpp
@@ -0,0 +1,115 @@
+/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+// Based on the Xentax Wiki documentation:
+// http://wiki.xentax.com/index.php/The_Last_Express_SND
+
+#include "lastexpress/data/archive.h"
+
+#include "lastexpress/debug.h"
+
+#include "common/debug.h"
+#include "common/file.h"
+
+namespace LastExpress {
+
+HPFArchive::HPFArchive(const Common::String &path) {
+	_filename = path;
+
+	// Open a stream to the archive
+	Common::SeekableReadStream *archive = SearchMan.createReadStreamForMember(_filename);
+	if (!archive) {
+		debugC(2, kLastExpressDebugResource, "Error opening file: %s", path.c_str());
+		return;
+	}
+
+	debugC(2, kLastExpressDebugResource, "Opened archive: %s", path.c_str());
+
+	// Read header to get the number of files
+	uint32 numFiles = archive->readUint32LE();
+	debugC(3, kLastExpressDebugResource, "Number of files in archive: %d", numFiles);
+
+	// Read the list of files
+	for (unsigned int i = 0; i < numFiles; ++i) {
+		char name[13];
+		HPFEntry entry;
+
+		archive->read(&name, sizeof(char) * _archiveNameSize);
+		entry.offset = archive->readUint32LE();
+		entry.size = archive->readUint32LE();
+		entry.isOnHD = archive->readUint16LE();
+
+		// Terminate string
+		name[12] = '\0';
+
+		Common::String filename(name);
+		filename.toLowercase();
+
+		_files[filename] = entry;
+
+		//debugC(9, kLastExpressDebugResource, "File entry: %s (offset:%d - Size: %d - HD: %u)", &name, entry.offset, entry.size, entry.isOnHD);
+	}
+
+	// Close stream
+	delete archive;
+}
+
+bool HPFArchive::hasFile(const Common::String &name) {
+	return (_files.find(name) != _files.end());
+}
+
+int HPFArchive::listMembers(Common::ArchiveMemberList &list) {
+	int numMembers = 0;
+
+	for (FileMap::const_iterator i = _files.begin(); i != _files.end(); ++i) {
+		list.push_back(Common::ArchiveMemberList::value_type(new Common::GenericArchiveMember(i->_key, this)));
+		numMembers++;
+	}
+
+	return numMembers;
+}
+
+Common::ArchiveMemberPtr HPFArchive::getMember(const Common::String &name) {
+	if (!hasFile(name))
+		return Common::ArchiveMemberPtr();
+
+	return Common::ArchiveMemberPtr(new Common::GenericArchiveMember(name, this));
+}
+
+Common::SeekableReadStream *HPFArchive::createReadStreamForMember(const Common::String &name) const {
+	FileMap::const_iterator fDesc = _files.find(name);
+	if (fDesc == _files.end())
+		return NULL;
+
+	Common::File *archive = new Common::File();
+	if (!archive->open(_filename)) {
+		delete archive;
+		return NULL;
+	}
+
+	return new Common::SeekableSubReadStream(archive, fDesc->_value.offset * _archiveSectorSize, fDesc->_value.offset * _archiveSectorSize + fDesc->_value.size * _archiveSectorSize, DisposeAfterUse::YES);
+}
+
+} // End of namespace LastExpress