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 */
40struct 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  */
63void bts_Alt_init( struct bbs_Context* cpA,
64				   struct bts_Alt* ptrA );
65
66/** resets bts_Alt  */
67void bts_Alt_exit( struct bbs_Context* cpA,
68				   struct bts_Alt* ptrA );
69
70/* ---- \ghd{ operators } -------------------------------------------------- */
71
72/** copy operator */
73void bts_Alt_copy( struct bbs_Context* cpA,
74 				   struct bts_Alt* ptrA,
75				   const struct bts_Alt* srcPtrA );
76
77/** equal operator */
78flag 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 */
89uint32 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 */
93uint32 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 */
97uint32 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 */
108void 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