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diff --git a/src/windows/native/sun/java2d/d3d/D3DMaskCache.h b/src/windows/native/sun/java2d/d3d/D3DMaskCache.h
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+++ b/src/windows/native/sun/java2d/d3d/D3DMaskCache.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2007-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+#ifndef D3DMASKCACHE_H
+#define D3DMASKCACHE_H
+
+#include "jni.h"
+#include "D3DContext.h"
+
+/**
+ * Constants that control the size of the texture tile cache used for
+ * mask operations.
+ */
+#define D3D_MASK_CACHE_TILE_WIDTH       32
+#define D3D_MASK_CACHE_TILE_HEIGHT      32
+#define D3D_MASK_CACHE_TILE_SIZE \
+   (D3D_MASK_CACHE_TILE_WIDTH * D3D_MASK_CACHE_TILE_HEIGHT)
+
+#define D3D_MASK_CACHE_WIDTH_IN_TILES   8
+#define D3D_MASK_CACHE_HEIGHT_IN_TILES  4
+
+#define D3D_MASK_CACHE_WIDTH_IN_TEXELS \
+   (D3D_MASK_CACHE_TILE_WIDTH * D3D_MASK_CACHE_WIDTH_IN_TILES)
+#define D3D_MASK_CACHE_HEIGHT_IN_TEXELS \
+   (D3D_MASK_CACHE_TILE_HEIGHT * D3D_MASK_CACHE_HEIGHT_IN_TILES)
+
+/*
+ * We reserve one (fully opaque) tile in the upper-right corner for
+ * operations where the mask is null.
+ */
+#define D3D_MASK_CACHE_MAX_INDEX \
+   ((D3D_MASK_CACHE_WIDTH_IN_TILES * D3D_MASK_CACHE_HEIGHT_IN_TILES) - 1)
+#define D3D_MASK_CACHE_SPECIAL_TILE_X \
+   (D3D_MASK_CACHE_WIDTH_IN_TEXELS - D3D_MASK_CACHE_TILE_WIDTH)
+#define D3D_MASK_CACHE_SPECIAL_TILE_Y \
+   (D3D_MASK_CACHE_HEIGHT_IN_TEXELS - D3D_MASK_CACHE_TILE_HEIGHT)
+
+class D3DContext;
+
+class D3DMaskCache {
+public:
+    HRESULT Init(D3DContext *pCtx);
+    void    ReleaseDefPoolResources() {};
+            ~D3DMaskCache();
+    HRESULT Enable();
+    HRESULT Disable();
+    HRESULT AddMaskQuad(int srcx, int srcy,
+                        int dstx, int dsty,
+                        int width, int height,
+                        int maskscan, void *mask);
+
+static
+    HRESULT CreateInstance(D3DContext *pCtx, D3DMaskCache **ppMaskCache);
+
+private:
+               D3DMaskCache();
+    UINT       maskCacheIndex;
+    D3DContext *pCtx;
+};
+
+#endif // D3DMASKCACHE_H