1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2003 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 /*
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 "c99_math.h"
37 #include "main/glheader.h"
38 #include "main/macros.h"
39
40 #include "m_eval.h"
41 #include "m_matrix.h"
42 #include "m_translate.h"
43 #include "m_xform.h"
44
45
46 #ifdef DEBUG_MATH
47 #include "m_debug.h"
48 #endif
49
50 #ifdef USE_X86_ASM
51 #include "x86/common_x86_asm.h"
52 #endif
53
54 #ifdef USE_X86_64_ASM
55 #include "x86-64/x86-64.h"
56 #endif
57
58 #ifdef USE_SPARC_ASM
59 #include "sparc/sparc.h"
60 #endif
61
62 clip_func _mesa_clip_tab[5];
63 clip_func _mesa_clip_np_tab[5];
64 dotprod_func _mesa_dotprod_tab[5];
65 vec_copy_func _mesa_copy_tab[0x10];
66 normal_func _mesa_normal_tab[0xf];
67 transform_func *_mesa_transform_tab[5];
68
69
70 /* Raw data format used for:
71 * - Object-to-eye transform prior to culling, although this too
72 * could be culled under some circumstances.
73 * - Eye-to-clip transform (via the function above).
74 * - Cliptesting
75 * - And everything else too, if culling happens to be disabled.
76 *
77 * GH: It's used for everything now, as clipping/culling is done
78 * elsewhere (most often by the driver itself).
79 */
80 #define TAG(x) x
81 #define TAG2(x,y) x##y
82 #define STRIDE_LOOP for ( i = 0 ; i < count ; i++, STRIDE_F(from, stride) )
83 #define LOOP for ( i = 0 ; i < n ; i++ )
84 #define ARGS
85 #include "m_xform_tmp.h"
86 #include "m_clip_tmp.h"
87 #include "m_norm_tmp.h"
88 #include "m_dotprod_tmp.h"
89 #include "m_copy_tmp.h"
90 #undef TAG
91 #undef TAG2
92 #undef LOOP
93 #undef ARGS
94
95
96 /*
97 * This is called only once. It initializes several tables with pointers
98 * to optimized transformation functions. This is where we can test for
99 * AMD 3Dnow! capability, Intel SSE, etc. and hook in the right code.
100 */
101 void
_math_init_transformation(void)102 _math_init_transformation( void )
103 {
104 init_c_transformations();
105 init_c_norm_transform();
106 init_c_cliptest();
107 init_copy0();
108 init_dotprod();
109
110 #ifdef DEBUG_MATH
111 _math_test_all_transform_functions( "default" );
112 _math_test_all_normal_transform_functions( "default" );
113 _math_test_all_cliptest_functions( "default" );
114 #endif
115
116 #ifdef USE_X86_ASM
117 _mesa_init_all_x86_transform_asm();
118 #elif defined( USE_SPARC_ASM )
119 _mesa_init_all_sparc_transform_asm();
120 #elif defined( USE_X86_64_ASM )
121 _mesa_init_all_x86_64_transform_asm();
122 #endif
123 }
124