xref: /xsrc/external/mit/xf86-video-intel/dist/src/render_program/exa_wm_projective.g4i

/*
 * 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>
 */

/********** Compute w *************/

mul (16)	temp_x<1>F	dst_x<8,8,1>F	dw_dx		{ compr align1 };
mul (16)	temp_y<1>F	dst_y<8,8,1>F	dw_dy		{ compr align1 };
add (16)	temp_x<1>F	temp_x<8,8,1>F	temp_y<8,8,1>F	{ compr align1 };
add (16)	temp_x<1>F	temp_x<8,8,1>F	wo		{ compr align1 };
send (8) 0	w_0<1>F		temp_x_0<8,8,1>F math inv mlen 1 rlen 1	{ align1 };
send (8) 0	w_1<1>F		temp_x_1<8,8,1>F math inv mlen 1 rlen 1	{ sechalf align1 };

/********** Compute u *************/

mul (16)	temp_x<1>F	dst_x<8,8,1>F	du_dx		{ compr align1 };
mul (16)	temp_y<1>F	dst_y<8,8,1>F	du_dy		{ compr align1 };
add (16)	temp_x<1>F	temp_x<8,8,1>F	temp_y<8,8,1>F	{ compr align1 };
add (16)	temp_x<1>F	temp_x<8,8,1>F	uo		{ compr align1 };
mul (16)	u<1>F		temp_x<8,8,1>F	w<8,8,1>F	{ compr align1 };

/********** Compute v *************/

mul (16)	temp_x<1>F	dst_x<8,8,1>F	dv_dx		{ compr align1 };
mul (16)	temp_y<1>F	dst_y<8,8,1>F	dv_dy		{ compr align1 };
add (16)	temp_x<1>F	temp_x<8,8,1>F	temp_y<8,8,1>F	{ compr align1 };
add (16)	temp_x<1>F	temp_x<8,8,1>F	vo		{ compr align1 };
mul (16)	v<1>F		temp_x<8,8,1>F	w<8,8,1>F	{ compr align1 };