Initial commit

engines/sword25/kernel/outputpersistenceblock.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/>.
+ *
+ */
+
+/*
+ * This code is based on Broken Sword 2.5 engine
+ *
+ * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
+ *
+ * Licensed under GNU GPL v2
+ *
+ */
+
+#include "sword25/kernel/outputpersistenceblock.h"
+
+namespace {
+const uint INITIAL_BUFFER_SIZE = 1024 * 64;
+}
+
+namespace Sword25 {
+
+OutputPersistenceBlock::OutputPersistenceBlock() {
+	_data.reserve(INITIAL_BUFFER_SIZE);
+}
+
+void OutputPersistenceBlock::write(const void *data, uint32 size) {
+	writeMarker(BLOCK_MARKER);
+
+	write(size);
+	rawWrite(data, size);
+}
+
+void OutputPersistenceBlock::write(int32 value) {
+	writeMarker(SINT_MARKER);
+	value = TO_LE_32(value);
+	rawWrite(&value, sizeof(value));
+}
+
+void OutputPersistenceBlock::write(uint32 value) {
+	writeMarker(UINT_MARKER);
+	value = TO_LE_32(value);
+	rawWrite(&value, sizeof(value));
+}
+
+void OutputPersistenceBlock::write(float value) {
+	writeMarker(FLOAT_MARKER);
+	uint32 tmp[1];
+
+	((float *)tmp)[0] = value;
+	tmp[0] = TO_LE_32(tmp[0]);
+
+	rawWrite(&value, sizeof(value));
+}
+
+void OutputPersistenceBlock::write(bool value) {
+	writeMarker(BOOL_MARKER);
+
+	uint uintBool = value ? 1 : 0;
+	uintBool = TO_LE_32(uintBool);
+	rawWrite(&uintBool, sizeof(uintBool));
+}
+
+void OutputPersistenceBlock::writeString(const Common::String &string) {
+	writeMarker(STRING_MARKER);
+
+	write((uint32)string.size());
+	rawWrite(string.c_str(), string.size());
+}
+
+void OutputPersistenceBlock::writeByteArray(Common::Array<byte> &value) {
+	writeMarker(BLOCK_MARKER);
+
+	write((uint32)value.size());
+	rawWrite(&value[0], value.size());
+}
+
+void OutputPersistenceBlock::writeMarker(byte marker) {
+	_data.push_back(marker);
+}
+
+void OutputPersistenceBlock::rawWrite(const void *dataPtr, size_t size) {
+	if (size > 0) {
+		uint oldSize = _data.size();
+		_data.resize(oldSize + size);
+		memcpy(&_data[oldSize], dataPtr, size);
+	}
+}
+
+} // End of namespace Sword25