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diff --git a/engines/sci/gui/gui_memmgr.h b/engines/sci/gui/gui_memmgr.h
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+++ b/engines/sci/gui/gui_memmgr.h
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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 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#ifndef SCI_MEMMGR_H
+#define SCI_MEMMGR_H
+
+#include "common/savefile.h"
+#include "common/endian.h"
+#include "common/hashmap.h"
+
+/*
+ Memory management functions for SCI engine;
+ All fuctions are simplified as there is no 16-bit limitations as in
+ original SCI. Although it may cause problems.
+
+ SCI Heap functionality.
+ Heap size is limited to 65535 bytes to be consistent with SCI scripts
+ Free block header is [wBlockSize][wNextFree]
+ Used block header is [wBlockSize][data.....]
+ ^-----returned HEAPHANDLE
+ */
+
+namespace Sci {
+
+typedef uint16 SCIHANDLE;
+typedef uint16 HEAPHANDLE;
+
+enum {
+	HEAP_SIZE	= 0x10000l,
+	HEAP_START	= 2
+};
+
+struct tagHandle {
+	byte *ptr; // data pointer
+	uint32 size; // memory block size
+	uint32 resId; // associated resource
+};
+//---------------------------------------------
+// for debugger
+enum kDataType {
+	kDataUnknown = 0,
+	kDataClass,
+	kDataObject,
+	kDataRect,
+	kDataWindow,
+	kDataPort,
+	kDataString,
+	kDataListHdr,
+	kDataListNode,
+	kDataCast,
+	kDataPalette,
+	kDataScript,
+	kDataFile
+};
+
+struct tagHeapInfo {
+	kDataType type;
+	char info[21];
+};
+
+void setHeapInfo(HEAPHANDLE hnd, kDataType type, const char *info = 0);
+
+bool InitMem(int16 max_handles);
+void FreeMem(void);
+
+// hunk functions
+SCIHANDLE hunkNeedHandle(uint16 size, uint32 resId = 0xFFFFFFFF);
+void hunkDisposeHandle(SCIHANDLE handle);
+
+byte *hunk2Ptr(SCIHANDLE handle);
+SCIHANDLE ptr2hunk(byte *ptr);
+uint32 hunkHandleSize(SCIHANDLE handle);
+int16 hunkResourceNum(SCIHANDLE handle);
+void hunkDump();
+uint32 hunkUsed();
+
+// heap functions
+HEAPHANDLE heapNewPtr(uint16 size, kDataType type/*=kDataUnknown*/,
+		const char *info = 0);
+void heapDisposePtr(HEAPHANDLE handle);
+void heapDisposePtr(byte *ptr);
+byte *heap2Ptr(HEAPHANDLE ptr);
+HEAPHANDLE ptr2heap(byte *ptr);
+uint16 heapGetBlockSize(HEAPHANDLE ptr);
+uint16 heapGetDataSize(HEAPHANDLE ptr);
+void heapFillPtr(HEAPHANDLE ptr, byte filler);
+void heapClearPtr(HEAPHANDLE ptr);
+void heapDump();
+uint16 heapFreeSize();
+uint16 heapLargestFreeSize();
+
+void heapSetBlockSize(HEAPHANDLE ptr, uint16 nbytes);
+HEAPHANDLE heapGetBlockNext(HEAPHANDLE ptr);
+void heapSetBlockNext(HEAPHANDLE ptr, SCIHANDLE next);
+
+bool saveMemState(Common::OutSaveFile *pFile);
+bool restoreMemState(Common::InSaveFile *pFile);
+
+} // end of namespace SCI
+
+#endif