1 files changed, 127 insertions, 0 deletions
diff --git a/awe/serializer.cpp b/awe/serializer.cpp
new file mode 100644
index 0000000000..aec79d6995
--- /dev/null
+++ b/awe/serializer.cpp
@@ -0,0 +1,127 @@
+/* AWE - Another World Engine
+ * Copyright (C) 2004 Gregory Montoir
+ * Copyright (C) 2004 The ScummVM project
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include "stdafx.h"
+
+#include "serializer.h"
+#include "file.h"
+#include "util.h"
+
+namespace Awe {
+
+Serializer::Serializer(File *stream, Mode mode, uint8 *ptrBlock, uint16 saveVer)
+	: _stream(stream), _mode(mode), _ptrBlock(ptrBlock), _saveVer(saveVer) {
+}
+
+void Serializer::saveOrLoadEntries(Entry *entry) {
+	switch (_mode) {
+	case SM_SAVE:
+		saveEntries(entry);
+		break;
+	case SM_LOAD:
+		loadEntries(entry);
+		break;	
+	}
+}
+
+void Serializer::saveEntries(Entry *entry) {
+	for (; entry->type != SET_END; ++entry) {
+		if (entry->maxVer == CUR_VER) {
+			switch (entry->type) {
+			case SET_INT:
+				saveInt(entry->size, entry->data);
+				break;
+			case SET_ARRAY:
+				if (entry->size == Serializer::SES_INT8) {
+					_stream->write(entry->data, entry->n);
+				} else {
+					uint8 *p = (uint8 *)entry->data;
+					for (int i = 0; i < entry->n; ++i) {
+						saveInt(entry->size, p);
+						p += entry->size;
+					}
+				}
+				break;
+			case SET_PTR:
+				_stream->writeUint32BE(*(uint8 **)(entry->data) - _ptrBlock);
+				break;
+			case SET_END:
+				break;
+			}
+		}
+	}
+}
+
+void Serializer::loadEntries(Entry *entry) {
+	for (; entry->type != SET_END; ++entry) {
+		if (_saveVer >= entry->minVer && _saveVer <= entry->maxVer) {
+			switch (entry->type) {
+			case SET_INT:
+				loadInt(entry->size, entry->data);
+				break;
+			case SET_ARRAY:
+				if (entry->size == Serializer::SES_INT8) {
+					_stream->read(entry->data, entry->n);
+				} else {
+					uint8 *p = (uint8 *)entry->data;
+					for (int i = 0; i < entry->n; ++i) {
+						loadInt(entry->size, p);
+						p += entry->size;
+					}
+				}
+				break;
+			case SET_PTR:
+				*(uint8 **)(entry->data) = _ptrBlock + _stream->readUint32BE();
+				break;
+			case SET_END:
+				break;				
+			}
+		}
+	}
+}
+
+void Serializer::saveInt(uint8 es, void *p) {
+	switch (es) {
+	case SES_INT8:
+		_stream->writeByte(*(uint8 *)p);
+		break;
+	case SES_INT16:
+		_stream->writeUint16BE(*(uint16 *)p);
+		break;
+	case SES_INT32:
+		_stream->writeUint32BE(*(uint32 *)p);
+		break;
+	}
+}
+
+void Serializer::loadInt(uint8 es, void *p) {
+	switch (es) {
+	case SES_INT8:
+		*(uint8 *)p = _stream->readByte();
+		break;
+	case SES_INT16:
+		*(uint16 *)p = _stream->readUint16BE();
+		break;
+	case SES_INT32:
+		*(uint32 *)p = _stream->readUint32BE();
+		break;
+	}
+}
+
+}