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/* $Id: 3dnow.h,v 1.1 1999/08/19 00:55:42 jtg Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.1
*
* Copyright (C) 1999 Brian Paul 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, 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 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
* BRIAN PAUL 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.
*/
/*
* 3DNow! optimizations contributed by
* Holger Waechtler <holger@akaflieg.extern.tu-berlin.de>
*/
#ifndef _3dnow_h
#define _3dnow_h
#include "xform.h"
void gl_init_3dnow_asm_transforms (void);
#if 0
GLvector4f *gl_project_points( GLvector4f *proj_vec,
const GLvector4f *clip_vec )
{
__asm__ (
" femms \n"
" \n"
" movq (%0), %%mm0 # x1 | x0 \n"
" movq 8(%0), %%mm1 # oow | x2 \n"
" \n"
"1: movq %%mm1, %%mm2 # oow | x2 \n"
" addl %2, %0 # next point \n"
" \n"
" punpckhdq %%mm2, %%mm2 # oow | oow \n"
" addl $16, %1 # next point \n"
" \n"
" pfrcp %%mm2, %%mm3 # 1/oow | 1/oow \n"
" decl %3 \n"
" \n"
" pfmul %%mm3, %%mm0 # x1/oow | x0/oow \n"
" movq %%mm0, -16(%1) # write r0, r1 \n"
" \n"
" pfmul %%mm3, %%mm1 # 1 | x2/oow \n"
" movq (%0), %%mm0 # x1 | x0 \n"
" \n"
" movd %%mm1, 8(%1) # write r2 \n"
" movd %%mm3, 12(%1) # write r3 \n"
" \n"
" movq 8(%0), %%mm1 # oow | x2 \n"
" ja 1b \n"
" \n"
" femms \n"
" "
::"a" (clip_vec->start),
"c" (proj_vec->start),
"g" (clip_vec->stride),
"d" (clip_vec->count)
);
proj_vec->flags |= VEC_SIZE_4;
proj_vec->size = 3;
proj_vec->count = clip_vec->count;
return proj_vec;
}
#endif
#endif
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