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diff --git a/src/gallium/state_trackers/wgl/stw_device.h b/src/gallium/state_trackers/wgl/stw_device.h
new file mode 100644
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+++ b/src/gallium/state_trackers/wgl/stw_device.h
@@ -0,0 +1,80 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#ifndef STW_DEVICE_H_
+#define STW_DEVICE_H_
+
+
+#include "pipe/p_compiler.h"
+#include "pipe/p_thread.h"
+#include "util/u_handle_table.h"
+#include "stw_icd.h"
+#include "stw_pixelformat.h"
+
+
+#define STW_MAX_PIXELFORMATS   256
+
+
+struct pipe_screen;
+struct stw_framebuffer;
+
+struct stw_device
+{
+   const struct stw_winsys *stw_winsys;
+   
+   struct pipe_screen *screen;
+   
+#ifdef DEBUG
+   boolean trace_running;
+#endif
+
+   LUID AdapterLuid;
+
+   struct stw_pixelformat_info pixelformats[STW_MAX_PIXELFORMATS];
+   unsigned pixelformat_count;
+   unsigned pixelformat_extended_count;
+
+   GLCALLBACKTABLE callbacks;
+
+   pipe_mutex ctx_mutex;
+   struct handle_table *ctx_table;
+   
+   pipe_mutex fb_mutex;
+   struct stw_framebuffer *fb_head;
+   
+#ifdef DEBUG
+   unsigned long memdbg_no;
+#endif
+};
+
+struct stw_context *
+stw_lookup_context_locked( DHGLRC hglrc );
+
+extern struct stw_device *stw_dev;
+
+
+#endif /* STW_DEVICE_H_ */