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/* $Id: m_dotprod_tmp.h,v 1.1 2003-02-28 11:48:05 pj Exp $ */
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/*
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 * Mesa 3-D graphics library
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 * Version:  3.5
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 *
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 * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included
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 * in all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 */
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/*
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 * New (3.1) transformation code written by Keith Whitwell.
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 */
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/* Note - respects the stride of the output vector.
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 */
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static void TAG(dotprod_vec2)( GLfloat *out,
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                               GLuint outstride,
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                               const GLvector4f *coord_vec,
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                               const GLfloat plane[4] )
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{
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   GLuint stride = coord_vec->stride;
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   GLfloat *coord = coord_vec->start;
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   GLuint count = coord_vec->count;
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   GLuint i;
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   const GLfloat plane0 = plane[0], plane1 = plane[1], plane3 = plane[3];
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   for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
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      *out = (coord[0] * plane0 +
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              coord[1] * plane1 +
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              plane3);
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   }
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}
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static void TAG(dotprod_vec3)( GLfloat *out,
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                               GLuint outstride,
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                               const GLvector4f *coord_vec,
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                               const GLfloat plane[4] )
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{
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   GLuint stride = coord_vec->stride;
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   GLfloat *coord = coord_vec->start;
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   GLuint count = coord_vec->count;
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   GLuint i;
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   const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2];
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   const GLfloat plane3 = plane[3];
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   for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
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      *out = (coord[0] * plane0 +
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              coord[1] * plane1 +
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              coord[2] * plane2 +
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              plane3);
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   }
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}
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static void TAG(dotprod_vec4)( GLfloat *out,
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                               GLuint outstride,
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                               const GLvector4f *coord_vec,
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                               const GLfloat plane[4] )
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{
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   GLuint stride = coord_vec->stride;
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   GLfloat *coord = coord_vec->start;
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   GLuint count = coord_vec->count;
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   GLuint i;
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   const GLfloat plane0 = plane[0], plane1 = plane[1], plane2 = plane[2];
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   const GLfloat plane3 = plane[3];
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   for (i=0;i<count;i++,STRIDE_F(coord,stride),STRIDE_F(out,outstride)) {
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      *out = (coord[0] * plane0 +
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              coord[1] * plane1 +
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              coord[2] * plane2 +
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              coord[3] * plane3);
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   }
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}
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static void TAG(init_dotprod)( void )
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{
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   _mesa_dotprod_tab[2] = TAG(dotprod_vec2);
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   _mesa_dotprod_tab[3] = TAG(dotprod_vec3);
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   _mesa_dotprod_tab[4] = TAG(dotprod_vec4);
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}