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 #ifndef bts_ALT_EM_H
18 #define bts_ALT_EM_H
19 
20 /* ---- includes ----------------------------------------------------------- */
21 
22 #include "b_BasicEm/Context.h"
23 #include "b_BasicEm/Basic.h"
24 #include "b_BasicEm/MemTbl.h"
25 #include "b_TensorEm/VectorMap.h"
26 #include "b_TensorEm/CompactAlt.h"
27 
28 /* ---- related objects  --------------------------------------------------- */
29 
30 /* ---- typedefs ----------------------------------------------------------- */
31 
32 /* ---- constants ---------------------------------------------------------- */
33 
34 /** data format version number */
35 #define bts_ALT_VERSION 100
36 
37 /* ---- object definition -------------------------------------------------- */
38 
39 /** applies affine linear transformation to vector */
40 struct bts_Alt
41 {
42 	/* ---- public data ---------------------------------------------------- */
43 
44 	/** base element (must be first element) */
45 	struct bts_VectorMap baseE;
46 
47 	/* ---- private data --------------------------------------------------- */
48 
49 	/* ---- public data ---------------------------------------------------- */
50 
51 	/* affine linear transformation */
52 	struct bts_CompactAlt altE;
53 
54 };
55 
56 /* ---- associated objects ------------------------------------------------- */
57 
58 /* ---- external functions ------------------------------------------------- */
59 
60 /* ---- \ghd{ constructor/destructor } ------------------------------------- */
61 
62 /** initializes bts_Alt  */
63 void bts_Alt_init( struct bbs_Context* cpA,
64 				   struct bts_Alt* ptrA );
65 
66 /** resets bts_Alt  */
67 void bts_Alt_exit( struct bbs_Context* cpA,
68 				   struct bts_Alt* ptrA );
69 
70 /* ---- \ghd{ operators } -------------------------------------------------- */
71 
72 /** copy operator */
73 void bts_Alt_copy( struct bbs_Context* cpA,
74  				   struct bts_Alt* ptrA,
75 				   const struct bts_Alt* srcPtrA );
76 
77 /** equal operator */
78 flag bts_Alt_equal( struct bbs_Context* cpA,
79 					const struct bts_Alt* ptrA,
80 					const struct bts_Alt* srcPtrA );
81 
82 /* ---- \ghd{ query functions } -------------------------------------------- */
83 
84 /* ---- \ghd{ modify functions } ------------------------------------------- */
85 
86 /* ---- \ghd{ memory I/O } ------------------------------------------------- */
87 
88 /** word size (16-bit) object needs when written to memory */
89 uint32 bts_Alt_memSize( struct bbs_Context* cpA,
90 				        const struct bts_Alt* ptrA );
91 
92 /** writes object to memory; returns number of words (16-bit) written */
93 uint32 bts_Alt_memWrite( struct bbs_Context* cpA,
94 					     const struct bts_Alt* ptrA, uint16* memPtrA );
95 
96 /** reads object from memory; returns number of words (16-bit) read */
97 uint32 bts_Alt_memRead( struct bbs_Context* cpA,
98 						struct bts_Alt* ptrA,
99 						const uint16* memPtrA,
100 						struct bbs_MemTbl* mtpA );
101 
102 /* ---- \ghd{ exec functions } --------------------------------------------- */
103 
104 /** Vector map operation.
105  *  Maps vector inVec to outVec (overflow-safe)
106  *  Memory areas of vectors may not overlap
107  */
108 void bts_Alt_map( struct bbs_Context* cpA,
109 				  const struct bts_VectorMap* ptrA,
110 				  const struct bts_Flt16Vec* inVecPtrA,
111 				  struct bts_Flt16Vec* outVecPtrA );
112 
113 #endif /* bts_ALT_EM_H */
114 
115