x86_xform.c revision 34e77493ce451e888a5c4292e3b5d49063d6d0a6 
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_xform.h"
36#include "common_x86_asm.h"
37
38#ifdef USE_X86_ASM
39#ifdef USE_3DNOW_ASM
40#include "3dnow.h"
41#endif
42#ifdef USE_SSE_ASM
43#include "sse.h"
44#endif
45#endif
46
47#ifdef DEBUG_MATH
48#include "math/m_debug.h"
49#endif
50
51
52#ifdef USE_X86_ASM
53DECLARE_XFORM_GROUP( x86, 2 )
54DECLARE_XFORM_GROUP( x86, 3 )
55DECLARE_XFORM_GROUP( x86, 4 )
56
57
58extern GLvector4f * _ASMAPI
59_mesa_x86_cliptest_points4( GLvector4f *clip_vec,
60			    GLvector4f *proj_vec,
61			    GLubyte clipMask[],
62			    GLubyte *orMask,
63			    GLubyte *andMask );
64
65extern GLvector4f * _ASMAPI
66_mesa_x86_cliptest_points4_np( GLvector4f *clip_vec,
67			       GLvector4f *proj_vec,
68			       GLubyte clipMask[],
69			       GLubyte *orMask,
70			       GLubyte *andMask );
71
72extern void _ASMAPI
73_mesa_v16_x86_cliptest_points4( GLfloat *first_vert,
74				GLfloat *last_vert,
75				GLubyte *or_mask,
76				GLubyte *and_mask,
77				GLubyte *clip_mask );
78
79extern void _ASMAPI
80_mesa_v16_x86_general_xform( GLfloat *dest,
81			     const GLfloat *m,
82			     const GLfloat *src,
83			     GLuint src_stride,
84			     GLuint count );
85#endif
86
87
88#ifdef USE_X86_ASM
89static void _mesa_init_x86_transform_asm( void )
90{
91   ASSIGN_XFORM_GROUP( x86, 2 );
92   ASSIGN_XFORM_GROUP( x86, 3 );
93   ASSIGN_XFORM_GROUP( x86, 4 );
94
95   _mesa_clip_tab[4] = _mesa_x86_cliptest_points4;
96   _mesa_clip_np_tab[4] = _mesa_x86_cliptest_points4_np;
97
98#ifdef DEBUG_MATH
99   _math_test_all_transform_functions( "x86" );
100   _math_test_all_cliptest_functions( "x86" );
101#endif
102}
103#endif
104
105
106void _mesa_init_all_x86_transform_asm( void )
107{
108   _mesa_get_x86_features();
109
110#ifdef USE_X86_ASM
111   if ( _mesa_x86_cpu_features ) {
112      _mesa_init_x86_transform_asm();
113   }
114
115#ifdef USE_MMX_ASM
116   if ( cpu_has_mmx ) {
117      if ( _mesa_getenv( "MESA_NO_MMX" ) == 0 ) {
118         _mesa_debug(NULL, "MMX cpu detected.\n");
119      } else {
120         _mesa_x86_cpu_features &= ~(X86_FEATURE_MMX);
121      }
122   }
123#endif
124
125#ifdef USE_3DNOW_ASM
126   if ( cpu_has_3dnow ) {
127      if ( _mesa_getenv( "MESA_NO_3DNOW" ) == 0 ) {
128         _mesa_debug(NULL, "3DNow! cpu detected.\n");
129         _mesa_init_3dnow_transform_asm();
130      } else {
131         _mesa_x86_cpu_features &= ~(X86_FEATURE_3DNOW);
132      }
133   }
134#endif
135
136#ifdef USE_SSE_ASM
137   if ( cpu_has_xmm ) {
138      if ( _mesa_getenv( "MESA_NO_SSE" ) == 0 ) {
139         _mesa_debug(NULL, "SSE cpu detected.\n");
140         if ( _mesa_getenv( "MESA_FORCE_SSE" ) == 0 ) {
141            _mesa_check_os_sse_support();
142         }
143         if ( cpu_has_xmm ) {
144            _mesa_init_sse_transform_asm();
145         }
146      } else {
147         _mesa_debug(NULL, "SSE cpu detected, but switched off by user.\n");
148         _mesa_x86_cpu_features &= ~(X86_FEATURE_XMM);
149      }
150   }
151#endif
152#endif
153}
154