Added Tinsel engine to main repos (no news item for it ON PURPOSE)

svn-id: r33230

1 files changed, 110 insertions, 0 deletions

diff --git a/engines/tinsel/heapmem.h b/engines/tinsel/heapmem.h
new file mode 100644
index 0000000000..c5d022b7f9
--- /dev/null
+++ b/engines/tinsel/heapmem.h
@@ -0,0 +1,110 @@
+/* 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.
+ *
+ * $URL$
+ * $Id$
+ *
+ * This file contains the handle based Memory Manager defines
+ */
+
+#ifndef TINSEL_HEAPMEM_H
+#define TINSEL_HEAPMEM_H
+
+#include "tinsel/dw.h"		// new data types
+
+namespace Tinsel {
+
+#define	NUM_MNODES	192	// the number of memory management nodes (was 128, then 192)
+
+struct MEM_NODE {
+	MEM_NODE *pNext;	// link to the next node in the list
+	MEM_NODE *pPrev;	// link to the previous node in the list
+	uint8 *pBaseAddr;	// base address of the memory object
+	long size;		// size of the memory object
+	uint32 lruTime;		// time when memory object was last accessed
+	int flags;		// allocation attributes
+};
+typedef MEM_NODE *PMEM_NODE;
+
+// allocation flags for the MemoryAlloc function
+#define	DWM_FIXED	0x0001	// allocates fixed memory
+#define	DWM_MOVEABLE	0x0002	// allocates movable memory
+#define	DWM_DISCARDABLE	0x0004	// allocates discardable memory
+#define	DWM_NOALLOC	0x0008	// when used with discardable memory - allocates a discarded block
+#define	DWM_NOCOMPACT	0x0010	// does not discard memory to satisfy the allocation request
+#define	DWM_ZEROINIT	0x0020	// initialises memory contents to zero
+#define	DWM_SOUND	0x0040	// allocate from the sound pool
+#define	DWM_GRAPHIC	0x0080	// allocate from the graphics pool
+
+// return value from the MemoryFlags function
+#define	DWM_DISCARDED	0x0100	// the objects memory block has been discarded
+
+// internal allocation flags
+#define	DWM_LOCKED	0x0200	// the objects memory block is locked
+#define	DWM_SENTINEL	0x0400	// the objects memory block is a sentinel
+
+
+/*----------------------------------------------------------------------*\
+|*			Memory Function Prototypes			*|
+\*----------------------------------------------------------------------*/
+
+void MemoryInit(void);		// initialises the memory manager
+
+#ifdef	DEBUG
+void MemoryStats(void);		// Shows the maximum number of mnodes used at once
+#endif
+
+PMEM_NODE MemoryAlloc(		// allocates the specified number of bytes from the heap
+	int flags,		// allocation attributes
+	long size);		// number of bytes to allocate
+
+void MemoryDiscard(		// discards the specified memory object
+	PMEM_NODE pMemNode);	// node of the memory object
+
+int MemoryFlags(		// returns information about the specified memory object
+	PMEM_NODE pMemNode);	// node of the memory object
+
+void MemoryFree(		// frees the specified memory object and invalidates its node
+	PMEM_NODE pMemNode);	// node of the memory object
+
+PMEM_NODE MemoryHandle(		// Retrieves the mnode associated with the specified pointer to a memory object
+	void *pMem);		// address of memory object
+
+void *MemoryLock(		// locks a memory object and returns a pointer to the first byte of the objects memory block
+	PMEM_NODE pMemNode);	// node of the memory object
+
+PMEM_NODE MemoryReAlloc(	// changes the size or attributes of a specified memory object
+	PMEM_NODE pMemNode,	// node of the memory object
+	long size,		// new size of block
+	int flags);		// how to reallocate the object
+
+long MemorySize(		// returns the size, in bytes, of the specified memory object
+	PMEM_NODE pMemNode);	// node of the memory object
+
+void MemoryUnlock(		// unlocks a memory object
+	PMEM_NODE pMemNode);	// node of the memory object
+
+bool HeapCompact(		// Allocates the specified number of bytes from the specified heap
+	long size,		// number of bytes to free up
+	bool bDiscard);		// when set - will discard blocks to fullfill the request
+
+} // end of namespace Tinsel
+
+#endif