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      1 /*
      2  * Mesa 3-D graphics library
      3  * Version:  6.0
      4  *
      5  * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the "Software"),
      9  * to deal in the Software without restriction, including without limitation
     10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     11  * and/or sell copies of the Software, and to permit persons to whom the
     12  * Software is furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice shall be included
     15  * in all copies or substantial portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 
     25 /*
     26  * PentiumIII-SIMD (SSE) optimizations contributed by
     27  * Andre Werthmann <wertmann (at) cs.uni-potsdam.de>
     28  */
     29 
     30 #include "main/glheader.h"
     31 #include "main/context.h"
     32 #include "math/m_xform.h"
     33 #include "tnl/t_context.h"
     34 
     35 #include "sse.h"
     36 #include "x86_xform.h"
     37 
     38 #ifdef DEBUG_MATH
     39 #include "math/m_debug.h"
     40 #endif
     41 
     42 
     43 #ifdef USE_SSE_ASM
     44 DECLARE_XFORM_GROUP( sse, 2 )
     45 DECLARE_XFORM_GROUP( sse, 3 )
     46 
     47 #if 1
     48 /* Some functions are not written in SSE-assembly, because the fpu ones are faster */
     49 extern void _ASMAPI _mesa_sse_transform_normals_no_rot( NORM_ARGS );
     50 extern void _ASMAPI _mesa_sse_transform_rescale_normals( NORM_ARGS );
     51 extern void _ASMAPI _mesa_sse_transform_rescale_normals_no_rot( NORM_ARGS );
     52 
     53 extern void _ASMAPI _mesa_sse_transform_points4_general( XFORM_ARGS );
     54 extern void _ASMAPI _mesa_sse_transform_points4_3d( XFORM_ARGS );
     55 /* XXX this function segfaults, see below */
     56 extern void _ASMAPI _mesa_sse_transform_points4_identity( XFORM_ARGS );
     57 /* XXX this one works, see below */
     58 extern void _ASMAPI _mesa_x86_transform_points4_identity( XFORM_ARGS );
     59 #else
     60 DECLARE_NORM_GROUP( sse )
     61 #endif
     62 
     63 
     64 extern void _ASMAPI
     65 _mesa_v16_sse_general_xform( GLfloat *first_vert,
     66 			     const GLfloat *m,
     67 			     const GLfloat *src,
     68 			     GLuint src_stride,
     69 			     GLuint count );
     70 
     71 extern void _ASMAPI
     72 _mesa_sse_project_vertices( GLfloat *first,
     73 			    GLfloat *last,
     74 			    const GLfloat *m,
     75 			    GLuint stride );
     76 
     77 extern void _ASMAPI
     78 _mesa_sse_project_clipped_vertices( GLfloat *first,
     79 				    GLfloat *last,
     80 				    const GLfloat *m,
     81 				    GLuint stride,
     82 				    const GLubyte *clipmask );
     83 #endif
     84 
     85 
     86 void _mesa_init_sse_transform_asm( void )
     87 {
     88 #ifdef USE_SSE_ASM
     89    ASSIGN_XFORM_GROUP( sse, 2 );
     90    ASSIGN_XFORM_GROUP( sse, 3 );
     91 
     92 #if 1
     93    /* TODO: Finish these off.
     94     */
     95    _mesa_transform_tab[4][MATRIX_GENERAL] =
     96       _mesa_sse_transform_points4_general;
     97    _mesa_transform_tab[4][MATRIX_3D] =
     98       _mesa_sse_transform_points4_3d;
     99    /* XXX NOTE: _mesa_sse_transform_points4_identity segfaults with the
    100       conformance tests, so use the x86 version.
    101    */
    102    _mesa_transform_tab[4][MATRIX_IDENTITY] =
    103       _mesa_x86_transform_points4_identity;/*_mesa_sse_transform_points4_identity;*/
    104 
    105    _mesa_normal_tab[NORM_TRANSFORM_NO_ROT] =
    106       _mesa_sse_transform_normals_no_rot;
    107    _mesa_normal_tab[NORM_TRANSFORM | NORM_RESCALE] =
    108       _mesa_sse_transform_rescale_normals;
    109    _mesa_normal_tab[NORM_TRANSFORM_NO_ROT | NORM_RESCALE] =
    110       _mesa_sse_transform_rescale_normals_no_rot;
    111 #else
    112    ASSIGN_XFORM_GROUP( sse, 4 );
    113 
    114    ASSIGN_NORM_GROUP( sse );
    115 #endif
    116 
    117 #ifdef DEBUG_MATH
    118    _math_test_all_transform_functions( "SSE" );
    119    _math_test_all_normal_transform_functions( "SSE" );
    120 #endif
    121 #endif
    122 }
    123 
    124