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  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 _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.