auto import from //depot/cupcake/@135843
[android/platform/external/neven.git] / Embedded / common / src / b_BitFeatureEm / I04Dns2x2Ftr.c
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/I04Dns2x2Ftr.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
41 void bbf_I04Dns2x2Ftr_init( struct bbs_Context* cpA,
42                                                     struct bbf_I04Dns2x2Ftr* ptrA )
43 {
44         bbf_Feature_init( cpA, &ptrA->baseE );
45         ptrA->baseE.typeE = ( uint32 )bbf_FT_I04_DNS_2X2_FTR;
46         ptrA->baseE.vpActivityE = bbf_I04Dns2x2Ftr_activity;
47         bbs_UInt32Arr_init( cpA, &ptrA->ptnArrE );
48         bbs_Int16Arr_init( cpA, &ptrA->tableE );
49         ptrA->activityFactorE = 0;
50 }
51
52 /* ------------------------------------------------------------------------- */
53
54 void bbf_I04Dns2x2Ftr_exit( struct bbs_Context* cpA,
55                                                     struct bbf_I04Dns2x2Ftr* ptrA )
56 {
57         bbf_Feature_exit( cpA, &ptrA->baseE );
58         bbs_UInt32Arr_exit( cpA, &ptrA->ptnArrE );
59         bbs_Int16Arr_exit( cpA, &ptrA->tableE );
60         ptrA->activityFactorE = 0;
61 }
62
63 /* ------------------------------------------------------------------------- */
64
65 /* ========================================================================= */
66 /*                                                                           */
67 /* ---- \ghd{ operators } -------------------------------------------------- */
68 /*                                                                           */
69 /* ========================================================================= */
70
71 /* ------------------------------------------------------------------------- */
72
73 void bbf_I04Dns2x2Ftr_copy( struct bbs_Context* cpA,
74                                                     struct bbf_I04Dns2x2Ftr* ptrA, 
75                                                     const struct bbf_I04Dns2x2Ftr* srcPtrA )
76 {
77         bbf_Feature_copy( cpA, &ptrA->baseE, &srcPtrA->baseE );
78         bbs_UInt32Arr_copy( cpA, &ptrA->ptnArrE, &srcPtrA->ptnArrE );
79         bbs_Int16Arr_copy( cpA, &ptrA->tableE, &srcPtrA->tableE );
80         ptrA->activityFactorE = srcPtrA->activityFactorE;
81 }
82
83 /* ------------------------------------------------------------------------- */
84
85 flag bbf_I04Dns2x2Ftr_equal( struct bbs_Context* cpA,
86                                                      const struct bbf_I04Dns2x2Ftr* ptrA, 
87                                                      const struct bbf_I04Dns2x2Ftr* srcPtrA )
88 {
89         if( !bbf_Feature_equal( cpA, &ptrA->baseE, &srcPtrA->baseE ) ) return FALSE;
90         if( !bbs_UInt32Arr_equal( cpA, &ptrA->ptnArrE, &srcPtrA->ptnArrE ) ) return FALSE;
91         if( !bbs_Int16Arr_equal( cpA, &ptrA->tableE, &srcPtrA->tableE ) ) 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         
122 uint32 bbf_I04Dns2x2Ftr_memSize( struct bbs_Context* cpA,
123                                                              const struct bbf_I04Dns2x2Ftr* 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->ptnArrE );
130         memSizeL += bbs_Int16Arr_memSize( cpA, &ptrA->tableE );
131         memSizeL += bbs_SIZEOF16( ptrA->activityFactorE );
132
133         return memSizeL; 
134 }
135
136 /* ------------------------------------------------------------------------- */
137         
138 uint32 bbf_I04Dns2x2Ftr_memWrite( struct bbs_Context* cpA,
139                                                               const struct bbf_I04Dns2x2Ftr* ptrA, 
140                                                                   uint16* memPtrA )
141 {
142         uint32 memSizeL = bbf_I04Dns2x2Ftr_memSize( cpA, ptrA );
143         memPtrA += bbs_memWrite32( &memSizeL, memPtrA );
144         memPtrA += bbs_memWriteUInt32( bbf_I04_DNS_2X2_FTR_VERSION, memPtrA );
145         memPtrA += bbf_Feature_memWrite( cpA, &ptrA->baseE, memPtrA );
146         memPtrA += bbs_UInt32Arr_memWrite( cpA, &ptrA->ptnArrE, memPtrA );
147         memPtrA += bbs_Int16Arr_memWrite( cpA, &ptrA->tableE, memPtrA );
148         memPtrA += bbs_memWrite32( &ptrA->activityFactorE, memPtrA );
149         return memSizeL;
150 }
151
152 /* ------------------------------------------------------------------------- */
153
154 uint32 bbf_I04Dns2x2Ftr_memRead( struct bbs_Context* cpA,
155                                                              struct bbf_I04Dns2x2Ftr* 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_I04_DNS_2X2_FTR_VERSION, memPtrA );
165         memPtrA += bbf_Feature_memRead( cpA, &ptrA->baseE, memPtrA );
166         memPtrA += bbs_UInt32Arr_memRead( cpA, &ptrA->ptnArrE, memPtrA, espL );
167         memPtrA += bbs_Int16Arr_memRead( cpA, &ptrA->tableE, memPtrA, espL );
168         memPtrA += bbs_memRead32( &ptrA->activityFactorE, memPtrA );
169         if( memSizeL != bbf_I04Dns2x2Ftr_memSize( cpA, ptrA ) )
170         {
171                 bbs_ERR0( bbs_ERR_CORRUPT_DATA, "uint32 bbf_I04Dns2x2Ftr_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
189 int32 bbf_I04Dns2x2Ftr_activity( const struct bbf_Feature* ptrA, const uint32* patchA )
190 {
191         const struct bbf_I04Dns2x2Ftr* ptrL = ( struct bbf_I04Dns2x2Ftr* )ptrA;
192
193         uint32 iL;
194
195         const uint32* ptnPtrL = ptrL->ptnArrE.arrPtrE;
196         const int16*  tableL  = ptrL->tableE.arrPtrE;
197         const uint32* patchL = patchA;
198
199         int32 sumL = 0;
200
201         uint32 wL = ptrL->baseE.patchWidthE - 1;
202         uint32 hL = ptrL->baseE.patchHeightE - 1;
203
204         uint32 borderMaskL = ( ( uint32 )1 << hL ) - 1;
205
206         uint32 blocksL = ptrL->baseE.patchHeightE >> 2; /* number of 4 bit blocks */
207
208         if( hL == 31 )
209         {
210                 for( iL = 0; iL < wL; iL++ )
211                 {
212                         uint32 vL = (   patchL[ 0 ]        ^ ptnPtrL[ 0 ] ) & 
213                                             ( ( patchL[ 0 ] >> 1 ) ^ ptnPtrL[ 1 ] ) &
214                                             ( ( patchL[ 1 ]      ) ^ ptnPtrL[ 2 ] ) &
215                                             ( ( patchL[ 1 ] >> 1 ) ^ ptnPtrL[ 3 ] ) & borderMaskL;
216
217                         patchL++;
218
219                         ptnPtrL += 4;
220
221                         sumL += tableL[         ( vL       ) & 0x0F   ];
222                         sumL += tableL[  16 + ( ( vL >>  4 ) & 0x0F ) ];
223                         sumL += tableL[  32 + ( ( vL >>  8 ) & 0x0F ) ];
224                         sumL += tableL[  48 + ( ( vL >> 12 ) & 0x0F ) ];
225                         sumL += tableL[  64 + ( ( vL >> 16 ) & 0x0F ) ];
226                         sumL += tableL[  80 + ( ( vL >> 20 ) & 0x0F ) ];
227                         sumL += tableL[  96 + ( ( vL >> 24 ) & 0x0F ) ];
228                         sumL += tableL[ 112 + ( ( vL >> 28 ) & 0x0F ) ];
229                         tableL += 128;
230                 }
231         }
232         else
233         {
234                 for( iL = 0; iL < wL; iL++ )
235                 {
236                         uint32 jL;
237                         uint32 vL = (   patchL[ 0 ]        ^ ptnPtrL[ 0 ] ) & 
238                                             ( ( patchL[ 0 ] >> 1 ) ^ ptnPtrL[ 1 ] ) &
239                                             ( ( patchL[ 1 ]      ) ^ ptnPtrL[ 2 ] ) &
240                                             ( ( patchL[ 1 ] >> 1 ) ^ ptnPtrL[ 3 ] ) & borderMaskL;
241
242                         patchL++;
243                         ptnPtrL += 4;
244
245                         for( jL = 0; jL < blocksL; jL++ )
246                         {
247                                 sumL += tableL[ vL & 0x0F ];
248                                 vL >>= 4;
249                                 tableL += 16;
250                         }
251                 }
252         }
253
254         return sumL * ( ptrL->activityFactorE >> 8 ) + ( ( sumL * ( int32 )( ptrL->activityFactorE & 0x0FF ) ) >> 8 );
255 }
256
257 /* ------------------------------------------------------------------------- */
258
259 /* ========================================================================= */
260