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gerrit-public.fairphone.software / platform / external / neven / 30957f56b33a18c5a4af787f25b9f145f2803634 / . / Embedded / common / src / b_BitFeatureEm / L04Dns2x2Ftr.c
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The Android Open Source Project30957f52008-10-21 07:00:00 -0700[diff] [blame^]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_BasicEm/Functions.h"
20#include "b_BasicEm/Math.h"
21#include "b_BitFeatureEm/L04Dns2x2Ftr.h"
22
23/* ------------------------------------------------------------------------- */
24
25/* ========================================================================= */
26/* */
27/* ---- \ghd{ auxiliary functions } ---------------------------------------- */
28/* */
29/* ========================================================================= */
30
31/* ------------------------------------------------------------------------- */
32
33/* ========================================================================= */
34/* */
35/* ---- \ghd{ constructor / destructor } ----------------------------------- */
36/* */
37/* ========================================================================= */
38
39/* ------------------------------------------------------------------------- */
40
41void bbf_L04Dns2x2Ftr_init( struct bbs_Context* cpA,
42 struct bbf_L04Dns2x2Ftr* ptrA )
43{
44 bbf_Feature_init( cpA, &ptrA->baseE );
45 ptrA->baseE.typeE = ( uint32 )bbf_FT_L04_DNS_2X2_FTR;
46 ptrA->baseE.vpActivityE = bbf_L04Dns2x2Ftr_activity;
47 bbs_UInt32Arr_init( cpA, &ptrA->dataArrE );
48 ptrA->wShiftE = 0;
49 ptrA->activityFactorE = 0;
50}
51
52/* ------------------------------------------------------------------------- */
53
54void bbf_L04Dns2x2Ftr_exit( struct bbs_Context* cpA,
55 struct bbf_L04Dns2x2Ftr* ptrA )
56{
57 bbf_Feature_exit( cpA, &ptrA->baseE );
58 bbs_UInt32Arr_exit( cpA, &ptrA->dataArrE );
59 ptrA->wShiftE = 0;
60 ptrA->activityFactorE = 0;
61}
62
63/* ------------------------------------------------------------------------- */
64
65/* ========================================================================= */
66/* */
67/* ---- \ghd{ operators } -------------------------------------------------- */
68/* */
69/* ========================================================================= */
70
71/* ------------------------------------------------------------------------- */
72
73void bbf_L04Dns2x2Ftr_copy( struct bbs_Context* cpA,
74 struct bbf_L04Dns2x2Ftr* ptrA,
75 const struct bbf_L04Dns2x2Ftr* srcPtrA )
76{
77 bbf_Feature_copy( cpA, &ptrA->baseE, &srcPtrA->baseE );
78 bbs_UInt32Arr_copy( cpA, &ptrA->dataArrE, &srcPtrA->dataArrE );
79 ptrA->wShiftE = srcPtrA->wShiftE;
80 ptrA->activityFactorE = srcPtrA->activityFactorE;
81}
82
83/* ------------------------------------------------------------------------- */
84
85flag bbf_L04Dns2x2Ftr_equal( struct bbs_Context* cpA,
86 const struct bbf_L04Dns2x2Ftr* ptrA,
87 const struct bbf_L04Dns2x2Ftr* srcPtrA )
88{
89 if( !bbf_Feature_equal( cpA, &ptrA->baseE, &srcPtrA->baseE ) ) return FALSE;
90 if( !bbs_UInt32Arr_equal( cpA, &ptrA->dataArrE, &srcPtrA->dataArrE ) ) return FALSE;
91 if( ptrA->wShiftE != srcPtrA->wShiftE ) return FALSE;
92 if( ptrA->activityFactorE != srcPtrA->activityFactorE ) return FALSE;
93 return TRUE;
94}
95
96/* ------------------------------------------------------------------------- */
97
98/* ========================================================================= */
99/* */
100/* ---- \ghd{ query functions } -------------------------------------------- */
101/* */
102/* ========================================================================= */
103
104/* ------------------------------------------------------------------------- */
105
106/* ========================================================================= */
107/* */
108/* ---- \ghd{ modify functions } ------------------------------------------- */
109/* */
110/* ========================================================================= */
111
112/* ------------------------------------------------------------------------- */
113
114/* ========================================================================= */
115/* */
116/* ---- \ghd{ I/O } -------------------------------------------------------- */
117/* */
118/* ========================================================================= */
119
120/* ------------------------------------------------------------------------- */
121
122uint32 bbf_L04Dns2x2Ftr_memSize( struct bbs_Context* cpA,
123 const struct bbf_L04Dns2x2Ftr* ptrA )
124{
125 uint32 memSizeL = bbs_SIZEOF16( uint32 ) +
126 bbs_SIZEOF16( uint32 ); /* version */
127
128 memSizeL += bbf_Feature_memSize( cpA, &ptrA->baseE );
129 memSizeL += bbs_UInt32Arr_memSize( cpA, &ptrA->dataArrE );
130 memSizeL += bbs_SIZEOF16( ptrA->wShiftE );
131 memSizeL += bbs_SIZEOF16( ptrA->activityFactorE );
132
133 return memSizeL;
134}
135
136/* ------------------------------------------------------------------------- */
137
138uint32 bbf_L04Dns2x2Ftr_memWrite( struct bbs_Context* cpA,
139 const struct bbf_L04Dns2x2Ftr* ptrA,
140 uint16* memPtrA )
141{
142 uint32 memSizeL = bbf_L04Dns2x2Ftr_memSize( cpA, ptrA );
143 memPtrA += bbs_memWrite32( &memSizeL, memPtrA );
144 memPtrA += bbs_memWriteUInt32( bbf_L04_DNS_2X2_FTR_VERSION, memPtrA );
145 memPtrA += bbf_Feature_memWrite( cpA, &ptrA->baseE, memPtrA );
146 memPtrA += bbs_UInt32Arr_memWrite( cpA, &ptrA->dataArrE, memPtrA );
147 memPtrA += bbs_memWrite32( &ptrA->wShiftE, memPtrA );
148 memPtrA += bbs_memWrite32( &ptrA->activityFactorE, memPtrA );
149 return memSizeL;
150}
151
152/* ------------------------------------------------------------------------- */
153
154uint32 bbf_L04Dns2x2Ftr_memRead( struct bbs_Context* cpA,
155 struct bbf_L04Dns2x2Ftr* ptrA,
156 const uint16* memPtrA,
157 struct bbs_MemTbl* mtpA )
158{
159 uint32 memSizeL, versionL;
160 struct bbs_MemTbl memTblL = *mtpA;
161 struct bbs_MemSeg* espL = bbs_MemTbl_fastestSegPtr( cpA, &memTblL, 0 );
162 if( bbs_Context_error( cpA ) ) return 0;
163 memPtrA += bbs_memRead32( &memSizeL, memPtrA );
164 memPtrA += bbs_memReadVersion32( cpA, &versionL, bbf_L04_DNS_2X2_FTR_VERSION, memPtrA );
165 memPtrA += bbf_Feature_memRead( cpA, &ptrA->baseE, memPtrA );
166 memPtrA += bbs_UInt32Arr_memRead( cpA, &ptrA->dataArrE, memPtrA, espL );
167 memPtrA += bbs_memRead32( &ptrA->wShiftE, memPtrA );
168 memPtrA += bbs_memRead32( &ptrA->activityFactorE, memPtrA );
169 if( memSizeL != bbf_L04Dns2x2Ftr_memSize( cpA, ptrA ) )
170 {
171 bbs_ERR0( bbs_ERR_CORRUPT_DATA, "uint32 bbf_L04Dns2x2Ftr_memRead( struct bem_ScanGradientMove* ptrA, const uint16* memPtrA ):\n"
172 "size mismatch" );
173 return 0;
174 }
175
176 return memSizeL;
177}
178
179/* ------------------------------------------------------------------------- */
180
181/* ========================================================================= */
182/* */
183/* ---- \ghd{ exec functions } --------------------------------------------- */
184/* */
185/* ========================================================================= */
186
187/* ------------------------------------------------------------------------- */
188
189int32 bbf_L04Dns2x2Ftr_activity( const struct bbf_Feature* ptrA, const uint32* patchA )
190{
191 const struct bbf_L04Dns2x2Ftr* ptrL = ( struct bbf_L04Dns2x2Ftr* )ptrA;
192
193 uint32 wL = ptrL->baseE.patchWidthE - 1;
194 uint32 hL = ptrL->baseE.patchHeightE - 1;
195
196 const uint32* dataPtrL = ptrL->dataArrE.arrPtrE;
197 uint32 iL;
198
199 uint32 borderMaskL = ( ( uint32 )1 << hL ) - 1;
200 const uint32* patchL = patchA;
201 int32 sumL = 0;
202
203 uint32 bL[ 4 ] = { 0, 0, 0, 0 }; /* bit sum */
204
205 for( iL = 0; iL < wL; iL++ )
206 {
207 uint32 vL = ( patchL[ 0 ] ^ dataPtrL[ 0 ] ) &
208 ( ( patchL[ 0 ] >> 1 ) ^ dataPtrL[ 1 ] ) &
209 ( ( patchL[ 1 ] ) ^ dataPtrL[ 2 ] ) &
210 ( ( patchL[ 1 ] >> 1 ) ^ dataPtrL[ 3 ] ) & borderMaskL;
211
212
213 {
214 uint32 vmL;
215 vmL = vL & dataPtrL[ 4 ];
216 bL[ 0 ] += bbf_BIT_SUM_32( vmL );
217 vmL = vL & dataPtrL[ 5 ];
218 bL[ 1 ] += bbf_BIT_SUM_32( vmL);
219 vmL = vL & dataPtrL[ 6 ];
220 bL[ 2 ] += bbf_BIT_SUM_32( vmL );
221 vmL = vL & dataPtrL[ 7 ];
222 bL[ 3 ] += bbf_BIT_SUM_32( vmL );
223 }
224
225 sumL += bbf_BIT_SUM_32( vL );
226
227 patchL++;
228 dataPtrL += 8;
229 }
230
231 /* compute final activity */
232 {
233 uint32 actL = ( ( bL[ 0 ] << 3 ) + ( bL[ 1 ] << 2 ) + ( bL[ 2 ] << 1 ) + bL[ 3 ] );
234 return actL * ptrL->activityFactorE + sumL * ptrL->wShiftE;
235 }
236}
237
238/* ------------------------------------------------------------------------- */
239
240/* ========================================================================= */
241