src/mesa/x86/sse.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /*
  26  * PentiumIII-SIMD (SSE) optimizations contributed by
  27  * Andre Werthmann <wertmann@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 _mesa_sse_transform_normals_no_rot( NORM_ARGS );
  50 extern void _mesa_sse_transform_rescale_normals( NORM_ARGS );
  51 extern void _mesa_sse_transform_rescale_normals_no_rot( NORM_ARGS );
  52
  53 extern void _mesa_sse_transform_points4_general( XFORM_ARGS );
  54 extern void _mesa_sse_transform_points4_3d( XFORM_ARGS );
  55 /* XXX this function segfaults, see below */
  56 extern void _mesa_sse_transform_points4_identity( XFORM_ARGS );
  57 /* XXX this one works, see below */
  58 extern void _mesa_x86_transform_points4_identity( XFORM_ARGS );
  59 #else
  60 DECLARE_NORM_GROUP( sse )
  61 #endif
  62
  63
  64 extern void
  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
  72 _mesa_sse_project_vertices( GLfloat *first,
  73                             GLfloat *last,
  74                             const GLfloat *m,
  75                             GLuint stride );
  76
  77 extern void
  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