src/mesa/x86/x86.c

   1 /* $Id: x86.c,v 1.19 2001/03/28 20:44:44 gareth Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27 /*
  28  * Intel x86 assembly code by Josh Vanderhoof
  29  */
  30
  31 #include "glheader.h"
  32 #include "context.h"
  33 #include "mtypes.h"
  34 #include "x86.h"
  35
  36 #include "math/m_vertices.h"
  37 #include "math/m_xform.h"
  38
  39 #include "tnl/t_context.h"
  40
  41 #ifdef DEBUG
  42 #include "math/m_debug.h"
  43 #endif
  44
  45
  46 #define XFORM_ARGS      GLvector4f *to_vec,                             \
  47                         const GLfloat m[16],                            \
  48                         const GLvector4f *from_vec,                     \
  49                         const GLubyte *mask,                            \
  50                         const GLubyte flag
  51
  52
  53 #define DECLARE_XFORM_GROUP( pfx, sz, masked ) \
  54 extern void _ASMAPI _mesa_##pfx##_transform_points##sz##_general_##masked( XFORM_ARGS );        \
  55 extern void _ASMAPI _mesa_##pfx##_transform_points##sz##_identity_##masked( XFORM_ARGS );       \
  56 extern void _ASMAPI _mesa_##pfx##_transform_points##sz##_3d_no_rot_##masked( XFORM_ARGS );      \
  57 extern void _ASMAPI _mesa_##pfx##_transform_points##sz##_perspective_##masked( XFORM_ARGS );    \
  58 extern void _ASMAPI _mesa_##pfx##_transform_points##sz##_2d_##masked( XFORM_ARGS );             \
  59 extern void _ASMAPI _mesa_##pfx##_transform_points##sz##_2d_no_rot_##masked( XFORM_ARGS );      \
  60 extern void _ASMAPI _mesa_##pfx##_transform_points##sz##_3d_##masked( XFORM_ARGS );
  61
  62
  63 #define ASSIGN_XFORM_GROUP( pfx, cma, sz, masked )                      \
  64    _mesa_transform_tab[cma][sz][MATRIX_GENERAL] =                       \
  65       _mesa_##pfx##_transform_points##sz##_general_##masked;            \
  66    _mesa_transform_tab[cma][sz][MATRIX_IDENTITY] =                      \
  67       _mesa_##pfx##_transform_points##sz##_identity_##masked;           \
  68    _mesa_transform_tab[cma][sz][MATRIX_3D_NO_ROT] =                     \
  69       _mesa_##pfx##_transform_points##sz##_3d_no_rot_##masked;          \
  70    _mesa_transform_tab[cma][sz][MATRIX_PERSPECTIVE] =                   \
  71       _mesa_##pfx##_transform_points##sz##_perspective_##masked;        \
  72    _mesa_transform_tab[cma][sz][MATRIX_2D] =                            \
  73       _mesa_##pfx##_transform_points##sz##_2d_##masked;                 \
  74    _mesa_transform_tab[cma][sz][MATRIX_2D_NO_ROT] =                     \
  75       _mesa_##pfx##_transform_points##sz##_2d_no_rot_##masked;          \
  76    _mesa_transform_tab[cma][sz][MATRIX_3D] =                            \
  77       _mesa_##pfx##_transform_points##sz##_3d_##masked;
  78
  79
  80 #ifdef USE_X86_ASM
  81 DECLARE_XFORM_GROUP( x86, 2, raw )
  82 DECLARE_XFORM_GROUP( x86, 3, raw )
  83 DECLARE_XFORM_GROUP( x86, 4, raw )
  84 DECLARE_XFORM_GROUP( x86, 2, masked )
  85 DECLARE_XFORM_GROUP( x86, 3, masked )
  86 DECLARE_XFORM_GROUP( x86, 4, masked )
  87
  88
  89 extern GLvector4f * _ASMAPI
  90 _mesa_x86_cliptest_points4( GLvector4f *clip_vec,
  91                             GLvector4f *proj_vec,
  92                             GLubyte clipMask[],
  93                             GLubyte *orMask,
  94                             GLubyte *andMask );
  95
  96 extern GLvector4f * _ASMAPI
  97 _mesa_x86_cliptest_points4_np( GLvector4f *clip_vec,
  98                                GLvector4f *proj_vec,
  99                                GLubyte clipMask[],
 100                                GLubyte *orMask,
 101                                GLubyte *andMask );
 102
 103 extern void _ASMAPI
 104 _mesa_v16_x86_cliptest_points4( GLfloat *first_vert,
 105                                 GLfloat *last_vert,
 106                                 GLubyte *or_mask,
 107                                 GLubyte *and_mask,
 108                                 GLubyte *clip_mask );
 109
 110 extern void _ASMAPI
 111 _mesa_v16_x86_general_xform( GLfloat *dest,
 112                              const GLfloat *m,
 113                              const GLfloat *src,
 114                              GLuint src_stride,
 115                              GLuint count );
 116 #endif
 117
 118
 119 void _mesa_init_x86_transform_asm( void )
 120 {
 121 #ifdef USE_X86_ASM
 122    ASSIGN_XFORM_GROUP( x86, 0, 2, raw );
 123    ASSIGN_XFORM_GROUP( x86, 0, 3, raw );
 124    ASSIGN_XFORM_GROUP( x86, 0, 4, raw );
 125
 126 /*     ASSIGN_XFORM_GROUP( x86, CULL_MASK_ACTIVE, 2, masked ); */
 127 /*     ASSIGN_XFORM_GROUP( x86, CULL_MASK_ACTIVE, 3, masked ); */
 128 /*     ASSIGN_XFORM_GROUP( x86, CULL_MASK_ACTIVE, 4, masked ); */
 129
 130    /* XXX this function has been found to cause FP overflow exceptions */
 131    _mesa_clip_tab[4] = _mesa_x86_cliptest_points4;
 132    _mesa_clip_np_tab[4] = _mesa_x86_cliptest_points4_np;
 133
 134 #ifdef DEBUG
 135    _math_test_all_transform_functions( "x86" );
 136 #endif
 137 #endif
 138 }
 139
 140 void _mesa_init_x86_vertex_asm( void )
 141 {
 142 #ifdef USE_X86_ASM
 143    _mesa_xform_points3_v16_general = _mesa_v16_x86_general_xform;
 144    _mesa_cliptest_points4_v16 = _mesa_v16_x86_cliptest_points4;
 145
 146 #ifdef DEBUG
 147    _math_test_all_vertex_functions( "x86" );
 148 #endif
 149 #endif
 150 }