--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graphicscomposition/openwfcompositionengine/common/include/owfobject.h	Tue Feb 02 01:47:50 2010 +0200
@@ -0,0 +1,106 @@
+/* Copyright (c) 2009 The Khronos Group Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and/or associated documentation files (the
+ * "Materials"), to deal in the Materials without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Materials, and to
+ * permit persons to whom the Materials are furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Materials.
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+ */
+
+#ifndef OWFOBJECT_H_
+#define OWFOBJECT_H_
+
+#include <stdlib.h>
+
+#include "owftypes.h"
+#include "owfdebug.h"
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+typedef void (*DESTRUCTOR)(void*);
+typedef void (*CONSTRUCTOR)(void*);
+
+typedef struct {
+    const char*             type;
+    DESTRUCTOR              destructor;
+    OWFuint32               referenceCount;
+    void*                   payload;
+} OWF_OBJECT;
+
+#define TYPE(x)             "" # x "_type"
+
+/*! returns field offset within structure */
+#define FOFF(x,y)           ((OWFuint32) &(((x*) 0x1000)->y) - 0x1000)
+
+/*! returns pointer to wrapper object which holds object x */
+#define _O(x)               ((OWF_OBJECT*) ((OWFuint32)(x) -\
+                                           FOFF(OWF_OBJECT,payload)))
+
+/*! create new object instance */
+#define CREATE(x)           (x*) OWF_Object_Construct(sizeof(x), TYPE(x), \
+                                                      & x##_Ctor, & x##_Dtor)
+
+#define REFCOUNT(x)         ((x) ? _O(x)->referenceCount : 0xFFFFFFFF)
+
+/*! get the type of the contained object  */
+#define TYPEOF(x)           (_O(x)->type)
+
+/*! increment object reference count  */
+#define ADDREF(x,y) \
+    if (y) {\
+         _O(y)->referenceCount++; \
+         DPRINT(("ADDREF: ref count of %s(%p) is now %d\n", TYPEOF(y), y, \
+                 REFCOUNT(y)));\
+    }\
+    x = y;
+
+/*! decrement object reference count, call destructor if count reaches zero  */
+#define REMREF(x) \
+    if (x) {\
+        --_O(x)->referenceCount; \
+        DPRINT(("REMREF: ref count of %s(%p) is now %d\n", TYPEOF(x), x, \
+                REFCOUNT(x))); \
+        if (0 == _O(x)->referenceCount) {\
+            if (_O(x)->destructor) {\
+                _O(x)->destructor(x);\
+            }\
+            xfree(_O(x));\
+        }\
+        x = NULL;\
+    }
+
+#define DESTROY(x) \
+    REMREF(x); \
+    x = NULL;
+
+OWF_API_CALL void*
+OWF_Object_Construct(size_t size,
+                     const char* type,
+                     CONSTRUCTOR ctor,
+                     DESTRUCTOR dtor);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* OWFOBJECT_H_ */