/* * 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 };