src/mesa/x86/x86.c

   1 /* $Id: x86.c,v 1.12 2000/11/19 02:18:33 gareth Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999  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 "types.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_xform.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 gl_##pfx##_transform_points##sz##_general_##masked( XFORM_ARGS );      \
  55  extern void _ASMAPI gl_##pfx##_transform_points##sz##_identity_##masked( XFORM_ARGS );     \
  56  extern void _ASMAPI gl_##pfx##_transform_points##sz##_3d_no_rot_##masked( XFORM_ARGS );    \
  57  extern void _ASMAPI gl_##pfx##_transform_points##sz##_perspective_##masked( XFORM_ARGS );  \
  58  extern void _ASMAPI gl_##pfx##_transform_points##sz##_2d_##masked( XFORM_ARGS );           \
  59  extern void _ASMAPI gl_##pfx##_transform_points##sz##_2d_no_rot_##masked( XFORM_ARGS );    \
  60  extern void _ASMAPI gl_##pfx##_transform_points##sz##_3d_##masked( XFORM_ARGS );
  61
  62
  63 #define ASSIGN_XFORM_GROUP( pfx, cma, sz, masked )                      \
  64    gl_transform_tab[cma][sz][MATRIX_GENERAL] =                          \
  65       gl_##pfx##_transform_points##sz##_general_##masked;               \
  66    gl_transform_tab[cma][sz][MATRIX_IDENTITY] =                         \
  67       gl_##pfx##_transform_points##sz##_identity_##masked;              \
  68    gl_transform_tab[cma][sz][MATRIX_3D_NO_ROT] =                        \
  69       gl_##pfx##_transform_points##sz##_3d_no_rot_##masked;             \
  70    gl_transform_tab[cma][sz][MATRIX_PERSPECTIVE] =                      \
  71       gl_##pfx##_transform_points##sz##_perspective_##masked;           \
  72    gl_transform_tab[cma][sz][MATRIX_2D] =                               \
  73       gl_##pfx##_transform_points##sz##_2d_##masked;                    \
  74    gl_transform_tab[cma][sz][MATRIX_2D_NO_ROT] =                        \
  75       gl_##pfx##_transform_points##sz##_2d_no_rot_##masked;             \
  76    gl_transform_tab[cma][sz][MATRIX_3D] =                               \
  77       gl_##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 gl_x86_cliptest_points4( GLvector4f *clip_vec,
  90                                                      GLvector4f *proj_vec,
  91                                                      GLubyte clipMask[],
  92                                                      GLubyte *orMask,
  93                                                      GLubyte *andMask );
  94
  95
  96 extern void _ASMAPI gl_v16_x86_cliptest_points4( GLfloat *first_vert,
  97                                                  GLfloat *last_vert,
  98                                                  GLubyte *or_mask,
  99                                                  GLubyte *and_mask,
 100                                                  GLubyte *clip_mask );
 101
 102
 103 extern void _ASMAPI gl_v16_x86_general_xform( GLfloat *dest,
 104                                               const GLfloat *m,
 105                                               const GLfloat *src,
 106                                               GLuint src_stride,
 107                                               GLuint count );
 108 #endif
 109
 110
 111 void gl_init_x86_transform_asm( void )
 112 {
 113 #ifdef USE_X86_ASM
 114    ASSIGN_XFORM_GROUP( x86, 0, 2, raw );
 115    ASSIGN_XFORM_GROUP( x86, 0, 3, raw );
 116    ASSIGN_XFORM_GROUP( x86, 0, 4, raw );
 117
 118    ASSIGN_XFORM_GROUP( x86, CULL_MASK_ACTIVE, 2, masked );
 119    ASSIGN_XFORM_GROUP( x86, CULL_MASK_ACTIVE, 3, masked );
 120    ASSIGN_XFORM_GROUP( x86, CULL_MASK_ACTIVE, 4, masked );
 121
 122    /* XXX this function has been found to cause FP overflow exceptions */
 123    gl_clip_tab[4] = gl_x86_cliptest_points4;
 124
 125 #ifdef DEBUG
 126    gl_test_all_transform_functions( "x86" );
 127 #endif
 128 #endif
 129 }
 130
 131 void gl_init_x86_vertex_asm( void )
 132 {
 133 #ifdef USE_X86_ASM
 134    gl_xform_points3_v16_general = gl_v16_x86_general_xform;
 135    gl_cliptest_points4_v16      = gl_v16_x86_cliptest_points4;
 136
 137 #ifdef DEBUG_NOT
 138    gl_test_all_vertex_functions( "x86" );
 139 #endif
 140 #endif
 141 }