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diff --git a/i965_drv_video/shaders/render/exa_wm_xy.g4a b/i965_drv_video/shaders/render/exa_wm_xy.g4a
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+/*
+ * Copyright © 2006 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 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 SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Wang Zhenyu <zhenyu.z.wang@intel.com>
+ * Keith Packard <keithp@keithp.com>
+ */
+
+/*
+ * Register assignments:
+ *
+ * x g6/g7
+ * y g8/g9
+ *
+ * temp x g10/g11
+ * temp y g12/g13
+ *
+ * src w g14/g15
+ * src u m1/m2
+ * src v m3/m4
+ */
+
+/* Fragment to compute per-pixel XY values */
+
+include(`exa_wm.g4i')
+
+ /* Load X and Y coordinates and compute per-pixel coordinates */
+add (16) temp_x_uw<1>UW dst_x_uw 0x10101010V { align1 };
+add (16) temp_y_uw<1>UW dst_y_uw 0x11001100V { align1 };
+
+ /* subtract screen-space origin of vertex 0 */
+add (16) dst_x<1>F temp_x_uw<8,8,1>UW -screen_x0 { compr align1 };
+add (16) dst_y<1>F temp_y_uw<8,8,1>UW -screen_y0 { compr align1 };