AURORA: Add a writer for TheWitcherSave files

src/aurora/rules.mk

@@ -68,6 +68,7 @@ src_aurora_libaurora_la_SOURCES += \
     src/aurora/ltrfile.h \
     src/aurora/textureatlasfile.h \
     src/aurora/thewitchersavefile.h \
+    src/aurora/thewitchersavewriter.h \
     src/aurora/sacfile.h \
     src/aurora/fevfile.h \
     $(EMPTY)
@@ -114,6 +115,7 @@ src_aurora_libaurora_la_SOURCES += \
     src/aurora/ltrfile.cpp \
     src/aurora/textureatlasfile.cpp \
     src/aurora/thewitchersavefile.cpp \
+    src/aurora/thewitchersavewriter.cpp \
     src/aurora/sacfile.cpp \
     src/aurora/fevfile.cpp \
     $(EMPTY)

src/aurora/thewitchersavewriter.cpp

@@ -0,0 +1,94 @@
+/* xoreos - A reimplementation of BioWare's Aurora engine
+ *
+ * xoreos is the legal property of its developers, whose names
+ * can be found in the AUTHORS file distributed with this source
+ * distribution.
+ *
+ * xoreos 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.
+ *
+ * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file
+ *  Writer for writing TheWitcherSave files.
+ */
+
+#include "src/common/encoding.h"
+
+#include "src/aurora/thewitchersavewriter.h"
+
+namespace Aurora {
+
+static const uint32 kRGMHID = MKTAG('R', 'G', 'M', 'H');
+
+TheWitcherSaveWriter::TheWitcherSaveWriter(const Common::UString &areaName, Common::SeekableWriteStream &stream) :
+		_stream(stream), _finished(false) {
+	// Write the magic id
+	stream.writeUint32BE(kRGMHID);
+
+	// Write the version 1
+	stream.writeUint32LE(1);
+
+	// Write the constant header length
+	stream.writeUint64LE(8232);
+
+	// Write some zeros
+	stream.writeZeros(8);
+
+	// Write some values, which are always the same
+	stream.writeUint32LE(0xEE7C4A60);
+	stream.writeUint32LE(0x459E4568);
+	stream.writeUint32LE(0x10D3DBBD);
+	stream.writeUint32LE(0x1CBCF20B);
+
+	// Write Lightning Storm
+	Common::writeStringFixed(stream, "Lightning Storm", Common::kEncodingUTF16LE, 2048);
+
+	// Write the current area name two times
+	Common::writeStringFixed(stream, areaName, Common::kEncodingUTF16LE, 2048);
+	Common::writeStringFixed(stream, areaName, Common::kEncodingUTF16LE, 2048);
+
+	// Write 2048 zeros
+	stream.writeZeros(2048);
+}
+
+void TheWitcherSaveWriter::add(const Common::UString &fileName, Common::ReadStream &stream) {
+	if (_finished)
+		throw Common::Exception("TheWitcherSave::add() Archive is already finished");
+
+	Resource resource;
+	resource.name = fileName;
+	resource.offset = _stream.pos();
+	resource.size = _stream.writeStream(stream);
+
+	_resources.push_back(resource);
+}
+
+void TheWitcherSaveWriter::finish() {
+	if (_finished)
+		throw Common::Exception("TheWitcherSave::finish() Archive is already finished");
+
+	const size_t resourceTableOffset = _stream.pos();
+
+	for (size_t i = 0; i < _resources.size(); ++i) {
+		const Resource &r = _resources[i];
+		_stream.writeUint32LE(r.name.size());
+		Common::writeString(_stream, r.name, Common::kEncodingASCII, false);
+		_stream.writeUint32LE(r.size);
+		_stream.writeUint32LE(r.offset);
+	}
+
+	_stream.writeUint32LE(resourceTableOffset);
+	_stream.writeUint32LE(_resources.size());
+}
+
+} // End of namespace Aurora

src/aurora/thewitchersavewriter.h

@@ -0,0 +1,69 @@
+/* xoreos - A reimplementation of BioWare's Aurora engine
+ *
+ * xoreos is the legal property of its developers, whose names
+ * can be found in the AUTHORS file distributed with this source
+ * distribution.
+ *
+ * xoreos 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.
+ *
+ * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file
+ *  Writer for writing TheWitcherSave files.
+ */
+
+#ifndef AURORA_THEWITCHERSAVEWRITER_H
+#define AURORA_THEWITCHERSAVEWRITER_H
+
+#include "src/common/writestream.h"
+
+namespace Aurora {
+
+class TheWitcherSaveWriter {
+public:
+	/** Create a new TheWitcherSave writer.
+	 *
+	 *  @param areaName Set the area name which should be written
+	 *  into the header.
+	 *  @param stream The stream to write the file to.
+	 */
+	TheWitcherSaveWriter(const Common::UString &areaName, Common::SeekableWriteStream &stream);
+
+	/** Add a file to this TheWitcherSave archive.
+	 *
+	 *  @param fileName The filename of the stream to write
+	 *  @param stream The stream of the
+	 */
+	void add(const Common::UString &fileName, Common::ReadStream &stream);
+
+	/** Finish the stream and write the file table at the
+	 *  end of the stream, and set the finished flag to prevent
+	 *  further adds.
+	 */
+	void finish();
+
+private:
+	struct Resource {
+		Common::UString name;
+		size_t size, offset;
+	};
+
+	Common::SeekableWriteStream &_stream;
+
+	bool _finished;
+	std::vector<Resource> _resources;
+};
+
+} // End of namespace Aurora
+
+#endif // AURORA_THEWITCHERSAVEWRITER_H