1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 /* ---- includes ----------------------------------------------------------- */
18
19 #include "b_TensorEm/Int16Vec3D.h"
20 #include "b_BasicEm/Functions.h"
21 #include "b_BasicEm/Math.h"
22 #include "b_BasicEm/Memory.h"
23
24 /* ------------------------------------------------------------------------- */
25
26 /* ========================================================================= */
27 /* */
28 /* ---- \ghd{ auxiliary functions } ---------------------------------------- */
29 /* */
30 /* ========================================================================= */
31
32 /* ------------------------------------------------------------------------- */
33
34 /* ========================================================================= */
35 /* */
36 /* ---- \ghd{ constructor / destructor } ----------------------------------- */
37 /* */
38 /* ========================================================================= */
39
40 /* ------------------------------------------------------------------------- */
41
42 /* ========================================================================= */
43 /* */
44 /* ---- \ghd{ operators } -------------------------------------------------- */
45 /* */
46 /* ========================================================================= */
47
48 /* ------------------------------------------------------------------------- */
49
50 /* ========================================================================= */
51 /* */
52 /* ---- \ghd{ query functions } -------------------------------------------- */
53 /* */
54 /* ========================================================================= */
55
56 /* ------------------------------------------------------------------------- */
57
58 /* ========================================================================= */
59 /* */
60 /* ---- \ghd{ modify functions } ------------------------------------------- */
61 /* */
62 /* ========================================================================= */
63
64 /* ------------------------------------------------------------------------- */
65
66 /* ========================================================================= */
67 /* */
68 /* ---- \ghd{ I/O } -------------------------------------------------------- */
69 /* */
70 /* ========================================================================= */
71
72 /* ------------------------------------------------------------------------- */
73
bts_Int16Vec3D_memSize(struct bbs_Context * cpA,const struct bts_Int16Vec3D * ptrA)74 uint32 bts_Int16Vec3D_memSize( struct bbs_Context* cpA,
75 const struct bts_Int16Vec3D *ptrA )
76 {
77 return bbs_SIZEOF16( struct bts_Int16Vec3D );
78 }
79
80 /* ------------------------------------------------------------------------- */
81
bts_Int16Vec3D_memWrite(struct bbs_Context * cpA,const struct bts_Int16Vec3D * ptrA,uint16 * memPtrA)82 uint32 bts_Int16Vec3D_memWrite( struct bbs_Context* cpA,
83 const struct bts_Int16Vec3D* ptrA,
84 uint16* memPtrA )
85 {
86 memPtrA += bbs_memWrite16( &ptrA->xE, memPtrA );
87 memPtrA += bbs_memWrite16( &ptrA->yE, memPtrA );
88 memPtrA += bbs_memWrite16( &ptrA->zE, memPtrA );
89 return bbs_SIZEOF16( *ptrA );
90 }
91
92 /* ------------------------------------------------------------------------- */
93
bts_Int16Vec3D_memRead(struct bbs_Context * cpA,struct bts_Int16Vec3D * ptrA,const uint16 * memPtrA)94 uint32 bts_Int16Vec3D_memRead( struct bbs_Context* cpA,
95 struct bts_Int16Vec3D* ptrA,
96 const uint16* memPtrA )
97 {
98 if( bbs_Context_error( cpA ) ) return 0;
99 memPtrA += bbs_memRead16( &ptrA->xE, memPtrA );
100 memPtrA += bbs_memRead16( &ptrA->yE, memPtrA );
101 memPtrA += bbs_memRead16( &ptrA->zE, memPtrA );
102 return bbs_SIZEOF16( *ptrA );
103 }
104
105 /* ------------------------------------------------------------------------- */
106
107 /* ========================================================================= */
108 /* */
109 /* ---- \ghd{ exec functions } --------------------------------------------- */
110 /* */
111 /* ========================================================================= */
112
113 /* ------------------------------------------------------------------------- */
114
bts_Int16Vec3D_norm2(const struct bts_Int16Vec3D * ptrA)115 uint32 bts_Int16Vec3D_norm2( const struct bts_Int16Vec3D* ptrA )
116 {
117 return ( int32 ) ptrA->xE * ptrA->xE +
118 ( int32 ) ptrA->yE * ptrA->yE +
119 ( int32 ) ptrA->zE * ptrA->zE;
120 }
121
122 /* ------------------------------------------------------------------------- */
123
bts_Int16Vec3D_norm(const struct bts_Int16Vec3D * ptrA)124 uint16 bts_Int16Vec3D_norm( const struct bts_Int16Vec3D* ptrA )
125 {
126 return bbs_sqrt32( ( int32 ) ptrA->xE * ptrA->xE +
127 ( int32 ) ptrA->yE * ptrA->yE +
128 ( int32 ) ptrA->zE * ptrA->zE );
129 }
130
131 /* ------------------------------------------------------------------------- */
132
bts_Int16Vec3D_normalize(struct bts_Int16Vec3D * ptrA,int32 bbpA)133 void bts_Int16Vec3D_normalize( struct bts_Int16Vec3D* ptrA, int32 bbpA )
134 {
135 int32 normL = bbs_sqrt32( ( int32 ) ptrA->xE * ptrA->xE +
136 ( int32 ) ptrA->yE * ptrA->yE +
137 ( int32 ) ptrA->zE * ptrA->zE );
138
139 int32 xL = ( ( int32 )ptrA->xE << 16 ) / normL;
140 int32 yL = ( ( int32 )ptrA->yE << 16 ) / normL;
141 int32 zL = ( ( int32 )ptrA->zE << 16 ) / normL;
142 ptrA->xE = xL >> ( 16 - bbpA );
143 ptrA->yE = yL >> ( 16 - bbpA );
144 ptrA->zE = zL >> ( 16 - bbpA );
145 }
146
147 /* ------------------------------------------------------------------------- */
148
bts_Int16Vec3D_normalized(const struct bts_Int16Vec3D * ptrA,int32 bbpA)149 struct bts_Int16Vec3D bts_Int16Vec3D_normalized( const struct bts_Int16Vec3D* ptrA, int32 bbpA )
150 {
151 struct bts_Int16Vec3D vecL = *ptrA;
152 bts_Int16Vec3D_normalize( &vecL, bbpA );
153 return vecL;
154 }
155
156 /* ------------------------------------------------------------------------- */
157
158 /* ========================================================================= */
159
160