1 /*
2 * Mesa 3-D graphics library
3 * Version: 5.1
4 *
5 * Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /*
27 * Matrix/vertex/vector transformation stuff
28 *
29 *
30 * NOTES:
31 * 1. 4x4 transformation matrices are stored in memory in column major order.
32 * 2. Points/vertices are to be thought of as column vectors.
33 * 3. Transformation of a point p by a matrix M is: p' = M * p
34 */
35
36 #include "main/glheader.h"
37 #include "main/macros.h"
38
39 #include "m_eval.h"
40 #include "m_matrix.h"
41 #include "m_translate.h"
42 #include "m_xform.h"
43
44
45 #ifdef DEBUG_MATH
46 #include "m_debug.h"
47 #endif
48
49 #ifdef USE_X86_ASM
50 #include "x86/common_x86_asm.h"
51 #endif
52
53 #ifdef USE_X86_64_ASM
54 #include "x86-64/x86-64.h"
55 #endif
56
57 #ifdef USE_SPARC_ASM
58 #include "sparc/sparc.h"
59 #endif
60
61 clip_func _mesa_clip_tab[5];
62 clip_func _mesa_clip_np_tab[5];
63 dotprod_func _mesa_dotprod_tab[5];
64 vec_copy_func _mesa_copy_tab[0x10];
65 normal_func _mesa_normal_tab[0xf];
66 transform_func *_mesa_transform_tab[5];
67
68
69 /* Raw data format used for:
70 * - Object-to-eye transform prior to culling, although this too
71 * could be culled under some circumstances.
72 * - Eye-to-clip transform (via the function above).
73 * - Cliptesting
74 * - And everything else too, if culling happens to be disabled.
75 *
76 * GH: It's used for everything now, as clipping/culling is done
77 * elsewhere (most often by the driver itself).
78 */
79 #define TAG(x) x
80 #define TAG2(x,y) x##y
81 #define STRIDE_LOOP for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) )
82 #define LOOP for ( i = 0 ; i < n ; i++ )
83 #define ARGS
84 #include "m_xform_tmp.h"
85 #include "m_clip_tmp.h"
86 #include "m_norm_tmp.h"
87 #include "m_dotprod_tmp.h"
88 #include "m_copy_tmp.h"
89 #undef TAG
90 #undef TAG2
91 #undef LOOP
92 #undef ARGS
93
94
95 /*
96 * This is called only once. It initializes several tables with pointers
97 * to optimized transformation functions. This is where we can test for
98 * AMD 3Dnow! capability, Intel SSE, etc. and hook in the right code.
99 */
100 void
_math_init_transformation(void)101 _math_init_transformation( void )
102 {
103 init_c_transformations();
104 init_c_norm_transform();
105 init_c_cliptest();
106 init_copy0();
107 init_dotprod();
108
109 #ifdef DEBUG_MATH
110 _math_test_all_transform_functions( "default" );
111 _math_test_all_normal_transform_functions( "default" );
112 _math_test_all_cliptest_functions( "default" );
113 #endif
114
115 #ifdef USE_X86_ASM
116 _mesa_init_all_x86_transform_asm();
117 #elif defined( USE_SPARC_ASM )
118 _mesa_init_all_sparc_transform_asm();
119 #elif defined( USE_X86_64_ASM )
120 _mesa_init_all_x86_64_transform_asm();
121 #endif
122 }
123