x86_xform.c revision 20d289eb2d32851030de6c28bba945eb4057a857 
1
2/*
3 * Mesa 3-D graphics library
4 * Version:  3.5
5 *
6 * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26/*
27 * Intel x86 assembly code by Josh Vanderhoof
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 "x86.h"
36#include "common_x86_macros.h"
37#include "common_x86_asm.h"
38
39#ifdef DEBUG_MATH
40#include "math/m_debug.h"
41#endif
42
43
44#ifdef USE_X86_ASM
45DECLARE_XFORM_GROUP( x86, 2 )
46DECLARE_XFORM_GROUP( x86, 3 )
47DECLARE_XFORM_GROUP( x86, 4 )
48
49
50extern GLvector4f * _ASMAPI
51_mesa_x86_cliptest_points4( GLvector4f *clip_vec,
52			    GLvector4f *proj_vec,
53			    GLubyte clipMask[],
54			    GLubyte *orMask,
55			    GLubyte *andMask );
56
57extern GLvector4f * _ASMAPI
58_mesa_x86_cliptest_points4_np( GLvector4f *clip_vec,
59			       GLvector4f *proj_vec,
60			       GLubyte clipMask[],
61			       GLubyte *orMask,
62			       GLubyte *andMask );
63
64extern void _ASMAPI
65_mesa_v16_x86_cliptest_points4( GLfloat *first_vert,
66				GLfloat *last_vert,
67				GLubyte *or_mask,
68				GLubyte *and_mask,
69				GLubyte *clip_mask );
70
71extern void _ASMAPI
72_mesa_v16_x86_general_xform( GLfloat *dest,
73			     const GLfloat *m,
74			     const GLfloat *src,
75			     GLuint src_stride,
76			     GLuint count );
77#endif
78
79
80void _mesa_init_x86_transform_asm( void )
81{
82#ifdef USE_X86_ASM
83   ASSIGN_XFORM_GROUP( x86, 2 );
84   ASSIGN_XFORM_GROUP( x86, 3 );
85   ASSIGN_XFORM_GROUP( x86, 4 );
86
87   _mesa_clip_tab[4] = _mesa_x86_cliptest_points4;
88   _mesa_clip_np_tab[4] = _mesa_x86_cliptest_points4_np;
89
90#ifdef DEBUG_MATH
91   _math_test_all_transform_functions( "x86" );
92   _math_test_all_cliptest_functions( "x86" );
93#endif
94#endif
95}
96
97
98void _mesa_init_all_x86_transform_asm( void )
99{
100   _mesa_get_x86_features();
101
102#ifdef USE_X86_ASM
103   if ( _mesa_x86_cpu_features ) {
104      _mesa_init_x86_transform_asm();
105   }
106
107#ifdef USE_MMX_ASM
108   if ( cpu_has_mmx ) {
109      if ( _mesa_getenv( "MESA_NO_MMX" ) == 0 ) {
110         _mesa_debug(NULL, "MMX cpu detected.\n");
111      } else {
112         _mesa_x86_cpu_features &= ~(X86_FEATURE_MMX);
113      }
114   }
115#endif
116
117#ifdef USE_3DNOW_ASM
118   if ( cpu_has_3dnow ) {
119      if ( _mesa_getenv( "MESA_NO_3DNOW" ) == 0 ) {
120         _mesa_debug(NULL, "3DNow! cpu detected.\n");
121         _mesa_init_3dnow_transform_asm();
122      } else {
123         _mesa_x86_cpu_features &= ~(X86_FEATURE_3DNOW);
124      }
125   }
126#endif
127
128#ifdef USE_SSE_ASM
129   if ( cpu_has_xmm ) {
130      if ( _mesa_getenv( "MESA_NO_SSE" ) == 0 ) {
131         _mesa_debug(NULL, "SSE cpu detected.\n");
132         if ( _mesa_getenv( "MESA_FORCE_SSE" ) == 0 ) {
133            _mesa_check_os_sse_support();
134         }
135         if ( cpu_has_xmm ) {
136            _mesa_init_sse_transform_asm();
137         }
138      } else {
139         _mesa_debug(NULL, "SSE cpu detected, but switched off by user.\n");
140         _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
141      }
142   }
143#endif
144#endif
145}
146