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diff --git a/transform.h b/transform.h
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+/* $Xorg: transform.h,v 1.4 2001/02/09 02:05:33 xorgcvs Exp $ */
+/*
+
+Copyright 1993, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice 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 NONINFRINGEMENT.
+IN NO EVENT SHALL THE OPEN GROUP 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.
+
+Except as contained in this notice, the name of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+
+/*
+ * header file for transformed coordinate system.  No rotations
+ * supported, as elipses cannot be rotated in X.
+ */
+
+typedef struct _transform {
+	double	mx, bx;
+	double	my, by;
+} Transform;
+
+typedef struct _TPoint {
+	double	x, y;
+} TPoint;
+
+typedef struct _TRectangle {
+	double	x, y, width, height;
+} TRectangle;
+
+# define Xx(x,y,t)	((int)((t)->mx * (x) + (t)->bx + 0.5))
+# define Xy(x,y,t)	((int)((t)->my * (y) + (t)->by + 0.5))
+# define Xwidth(w,h,t)	((int)((t)->mx * (w) + 0.5))
+# define Xheight(w,h,t)	((int)((t)->my * (h) + 0.5))
+# define Tx(x,y,t)	((((double) (x)) - (t)->bx) / (t)->mx)
+# define Ty(x,y,t)	((((double) (y)) - (t)->by) / (t)->my)
+# define Twidth(w,h,t)	(((double) (w)) / (t)->mx)
+# define Theight(w,h,t)	(((double) (h)) / (t)->my)