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/L06Dns4x4Ftr.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
bbf_L06Dns4x4Ftr_init(struct bbs_Context * cpA,struct bbf_L06Dns4x4Ftr * ptrA)41 void bbf_L06Dns4x4Ftr_init( struct bbs_Context* cpA,
42 struct bbf_L06Dns4x4Ftr* ptrA )
43 {
44 bbf_Feature_init( cpA, &ptrA->baseE );
45 ptrA->baseE.typeE = ( uint32 )bbf_FT_L06_DNS_4X4_FTR;
46 ptrA->baseE.vpActivityE = bbf_L06Dns4x4Ftr_activity;
47 bbs_UInt32Arr_init( cpA, &ptrA->dataArrE );
48 ptrA->activityFactorE = 0;
49 }
50
51 /* ------------------------------------------------------------------------- */
52
bbf_L06Dns4x4Ftr_exit(struct bbs_Context * cpA,struct bbf_L06Dns4x4Ftr * ptrA)53 void bbf_L06Dns4x4Ftr_exit( struct bbs_Context* cpA,
54 struct bbf_L06Dns4x4Ftr* ptrA )
55 {
56 bbf_Feature_exit( cpA, &ptrA->baseE );
57 bbs_UInt32Arr_exit( cpA, &ptrA->dataArrE );
58 ptrA->activityFactorE = 0;
59 }
60
61 /* ------------------------------------------------------------------------- */
62
63 /* ========================================================================= */
64 /* */
65 /* ---- \ghd{ operators } -------------------------------------------------- */
66 /* */
67 /* ========================================================================= */
68
69 /* ------------------------------------------------------------------------- */
70
bbf_L06Dns4x4Ftr_copy(struct bbs_Context * cpA,struct bbf_L06Dns4x4Ftr * ptrA,const struct bbf_L06Dns4x4Ftr * srcPtrA)71 void bbf_L06Dns4x4Ftr_copy( struct bbs_Context* cpA,
72 struct bbf_L06Dns4x4Ftr* ptrA,
73 const struct bbf_L06Dns4x4Ftr* srcPtrA )
74 {
75 bbf_Feature_copy( cpA, &ptrA->baseE, &srcPtrA->baseE );
76 bbs_UInt32Arr_copy( cpA, &ptrA->dataArrE, &srcPtrA->dataArrE );
77 ptrA->activityFactorE = srcPtrA->activityFactorE;
78 }
79
80 /* ------------------------------------------------------------------------- */
81
bbf_L06Dns4x4Ftr_equal(struct bbs_Context * cpA,const struct bbf_L06Dns4x4Ftr * ptrA,const struct bbf_L06Dns4x4Ftr * srcPtrA)82 flag bbf_L06Dns4x4Ftr_equal( struct bbs_Context* cpA,
83 const struct bbf_L06Dns4x4Ftr* ptrA,
84 const struct bbf_L06Dns4x4Ftr* srcPtrA )
85 {
86 if( !bbf_Feature_equal( cpA, &ptrA->baseE, &srcPtrA->baseE ) ) return FALSE;
87 if( !bbs_UInt32Arr_equal( cpA, &ptrA->dataArrE, &srcPtrA->dataArrE ) ) return FALSE;
88 if( ptrA->activityFactorE != srcPtrA->activityFactorE ) return FALSE;
89 return TRUE;
90 }
91
92 /* ------------------------------------------------------------------------- */
93
94 /* ========================================================================= */
95 /* */
96 /* ---- \ghd{ query functions } -------------------------------------------- */
97 /* */
98 /* ========================================================================= */
99
100 /* ------------------------------------------------------------------------- */
101
102 /* ========================================================================= */
103 /* */
104 /* ---- \ghd{ modify functions } ------------------------------------------- */
105 /* */
106 /* ========================================================================= */
107
108 /* ------------------------------------------------------------------------- */
109
110 /* ========================================================================= */
111 /* */
112 /* ---- \ghd{ I/O } -------------------------------------------------------- */
113 /* */
114 /* ========================================================================= */
115
116 /* ------------------------------------------------------------------------- */
117
bbf_L06Dns4x4Ftr_memSize(struct bbs_Context * cpA,const struct bbf_L06Dns4x4Ftr * ptrA)118 uint32 bbf_L06Dns4x4Ftr_memSize( struct bbs_Context* cpA,
119 const struct bbf_L06Dns4x4Ftr* ptrA )
120 {
121 uint32 memSizeL = bbs_SIZEOF16( uint32 ) +
122 bbs_SIZEOF16( uint32 ); /* version */
123
124 memSizeL += bbf_Feature_memSize( cpA, &ptrA->baseE );
125 memSizeL += bbs_UInt32Arr_memSize( cpA, &ptrA->dataArrE );
126 memSizeL += bbs_SIZEOF16( ptrA->activityFactorE );
127
128 return memSizeL;
129 }
130
131 /* ------------------------------------------------------------------------- */
132
bbf_L06Dns4x4Ftr_memWrite(struct bbs_Context * cpA,const struct bbf_L06Dns4x4Ftr * ptrA,uint16 * memPtrA)133 uint32 bbf_L06Dns4x4Ftr_memWrite( struct bbs_Context* cpA,
134 const struct bbf_L06Dns4x4Ftr* ptrA,
135 uint16* memPtrA )
136 {
137 uint32 memSizeL = bbf_L06Dns4x4Ftr_memSize( cpA, ptrA );
138 memPtrA += bbs_memWrite32( &memSizeL, memPtrA );
139 memPtrA += bbs_memWriteUInt32( bbf_L06_DNS_4X4_FTR_VERSION, memPtrA );
140 memPtrA += bbf_Feature_memWrite( cpA, &ptrA->baseE, memPtrA );
141 memPtrA += bbs_UInt32Arr_memWrite( cpA, &ptrA->dataArrE, memPtrA );
142 memPtrA += bbs_memWrite32( &ptrA->activityFactorE, memPtrA );
143 return memSizeL;
144 }
145
146 /* ------------------------------------------------------------------------- */
147
bbf_L06Dns4x4Ftr_memRead(struct bbs_Context * cpA,struct bbf_L06Dns4x4Ftr * ptrA,const uint16 * memPtrA,struct bbs_MemTbl * mtpA)148 uint32 bbf_L06Dns4x4Ftr_memRead( struct bbs_Context* cpA,
149 struct bbf_L06Dns4x4Ftr* ptrA,
150 const uint16* memPtrA,
151 struct bbs_MemTbl* mtpA )
152 {
153 uint32 memSizeL, versionL;
154 struct bbs_MemTbl memTblL = *mtpA;
155 struct bbs_MemSeg* espL = bbs_MemTbl_fastestSegPtr( cpA, &memTblL, 0 );
156 if( bbs_Context_error( cpA ) ) return 0;
157 memPtrA += bbs_memRead32( &memSizeL, memPtrA );
158 memPtrA += bbs_memReadVersion32( cpA, &versionL, bbf_L06_DNS_4X4_FTR_VERSION, memPtrA );
159 memPtrA += bbf_Feature_memRead( cpA, &ptrA->baseE, memPtrA );
160 memPtrA += bbs_UInt32Arr_memRead( cpA, &ptrA->dataArrE, memPtrA, espL );
161 memPtrA += bbs_memRead32( &ptrA->activityFactorE, memPtrA );
162 if( memSizeL != bbf_L06Dns4x4Ftr_memSize( cpA, ptrA ) )
163 {
164 bbs_ERR0( bbs_ERR_CORRUPT_DATA, "uint32 bbf_L06Dns4x4Ftr_memRead( struct bem_ScanGradientMove* ptrA, const uint16* memPtrA ):\n"
165 "size mismatch" );
166 return 0;
167 }
168
169 return memSizeL;
170 }
171
172 /* ------------------------------------------------------------------------- */
173
174 /* ========================================================================= */
175 /* */
176 /* ---- \ghd{ exec functions } --------------------------------------------- */
177 /* */
178 /* ========================================================================= */
179
180 /* ------------------------------------------------------------------------- */
181
bbf_L06Dns4x4Ftr_activity(const struct bbf_Feature * ptrA,const uint32 * patchA)182 int32 bbf_L06Dns4x4Ftr_activity( const struct bbf_Feature* ptrA, const uint32* patchA )
183 {
184 const struct bbf_L06Dns4x4Ftr* ptrL = ( struct bbf_L06Dns4x4Ftr* )ptrA;
185
186 uint32 wL = ptrL->baseE.patchWidthE - 3;
187 uint32 hL = ptrL->baseE.patchHeightE - 3;
188 const uint32* dataPtrL = ptrL->dataArrE.arrPtrE;
189 uint32 iL;
190
191 uint32 borderMaskL = ( ( uint32 )1 << hL ) - 1;
192
193 uint32 sL[ 16 ];
194 uint32 bL[ 6 ] = { 0, 0, 0, 0, 0, 0 }; /* bit sum */
195
196 for( iL = 0; iL < wL; iL++ )
197 {
198 uint32 vL, mL, tL; /* bit sum and thresholds */
199
200 uint32 s1L = patchA[ iL ];
201 uint32 s2L = patchA[ iL + 1 ];
202 uint32 s3L = patchA[ iL + 2 ];
203 uint32 s4L = patchA[ iL + 3 ];
204
205 /* comparison of pixels with patchHeightE - 3 features */
206 sL[ 0 ] = ( ( s1L ) ^ dataPtrL[ 0 ] ) & borderMaskL;
207 sL[ 1 ] = ( ( s1L >> 1 ) ^ dataPtrL[ 1 ] ) & borderMaskL;
208 sL[ 2 ] = ( ( s1L >> 2 ) ^ dataPtrL[ 2 ] ) & borderMaskL;
209 sL[ 3 ] = ( ( s1L >> 3 ) ^ dataPtrL[ 3 ] ) & borderMaskL;
210
211 sL[ 4 ] = ( ( s2L ) ^ dataPtrL[ 4 ] ) & borderMaskL;
212 sL[ 5 ] = ( ( s2L >> 1 ) ^ dataPtrL[ 5 ] ) & borderMaskL;
213 sL[ 6 ] = ( ( s2L >> 2 ) ^ dataPtrL[ 6 ] ) & borderMaskL;
214 sL[ 7 ] = ( ( s2L >> 3 ) ^ dataPtrL[ 7 ] ) & borderMaskL;
215
216 sL[ 8 ] = ( ( s3L ) ^ dataPtrL[ 8 ] ) & borderMaskL;
217 sL[ 9 ] = ( ( s3L >> 1 ) ^ dataPtrL[ 9 ] ) & borderMaskL;
218 sL[ 10 ] = ( ( s3L >> 2 ) ^ dataPtrL[ 10 ] ) & borderMaskL;
219 sL[ 11 ] = ( ( s3L >> 3 ) ^ dataPtrL[ 11 ] ) & borderMaskL;
220
221 sL[ 12 ] = ( ( s4L ) ^ dataPtrL[ 12 ] ) & borderMaskL;
222 sL[ 13 ] = ( ( s4L >> 1 ) ^ dataPtrL[ 13 ] ) & borderMaskL;
223 sL[ 14 ] = ( ( s4L >> 2 ) ^ dataPtrL[ 14 ] ) & borderMaskL;
224 sL[ 15 ] = ( ( s4L >> 3 ) ^ dataPtrL[ 15 ] ) & borderMaskL;
225
226 /* parallel bit counting of patchHeightE - 2 features */
227
228 vL = 0;
229
230 mL = ( ( sL[ 0 ] & 0x11111111 ) + ( sL[ 1 ] & 0x11111111 ) + ( sL[ 2 ] & 0x11111111 ) +
231 ( sL[ 3 ] & 0x11111111 ) + ( sL[ 4 ] & 0x11111111 ) + ( sL[ 5 ] & 0x11111111 ) +
232 ( sL[ 6 ] & 0x11111111 ) + ( sL[ 7 ] & 0x11111111 ) + ( sL[ 8 ] & 0x11111111 ) +
233 ( sL[ 9 ] & 0x11111111 ) + ( sL[ 10 ] & 0x11111111 ) + ( sL[ 11 ] & 0x11111111 ) +
234 ( sL[ 12 ] & 0x11111111 ) + ( sL[ 13 ] & 0x11111111 ) + ( sL[ 14 ] & 0x11111111 ) );
235
236 tL = dataPtrL[ 16 ];
237
238 /* compare with thresholds and store results in vL */
239 vL |= ( ( ( mL & 0x0F0F0F0F ) + ( tL & 0x0F0F0F0F ) + ( sL[ 15 ] & 0x01010101 ) ) & 0x10101010 ) >> 4;
240 vL |= ( ( ( ( mL >> 4 ) & 0x0F0F0F0F ) + ( ( tL >> 4 ) & 0x0F0F0F0F ) + ( ( sL[ 15 ] >> 4 ) & 0x01010101 ) ) & 0x10101010 );
241
242 mL = ( ( sL[ 0 ] & 0x02222222 ) + ( sL[ 1 ] & 0x02222222 ) + ( sL[ 2 ] & 0x02222222 ) +
243 ( sL[ 3 ] & 0x02222222 ) + ( sL[ 4 ] & 0x02222222 ) + ( sL[ 5 ] & 0x02222222 ) +
244 ( sL[ 6 ] & 0x02222222 ) + ( sL[ 7 ] & 0x02222222 ) + ( sL[ 8 ] & 0x02222222 ) +
245 ( sL[ 9 ] & 0x02222222 ) + ( sL[ 10 ] & 0x02222222 ) + ( sL[ 11 ] & 0x02222222 ) +
246 ( sL[ 12 ] & 0x02222222 ) + ( sL[ 13 ] & 0x02222222 ) + ( sL[ 14 ] & 0x02222222 ) ) >> 1;
247
248 sL[ 15 ] >>= 1;
249 tL = dataPtrL[ 17 ];
250
251 /* compare with thresholds and store results in vL */
252 vL |= ( ( ( mL & 0x0F0F0F0F ) + ( tL & 0x0F0F0F0F ) + ( sL[ 15 ] & 0x01010101 ) ) & 0x10101010 ) >> 3;
253 vL |= ( ( ( ( mL >> 4 ) & 0x0F0F0F0F ) + ( ( tL >> 4 ) & 0x0F0F0F0F ) + ( ( sL[ 15 ] >> 4 ) & 0x01010101 ) ) & 0x10101010 ) << 1;
254
255 mL = ( ( sL[ 0 ] & 0x04444444 ) + ( sL[ 1 ] & 0x04444444 ) + ( sL[ 2 ] & 0x04444444 ) +
256 ( sL[ 3 ] & 0x04444444 ) + ( sL[ 4 ] & 0x04444444 ) + ( sL[ 5 ] & 0x04444444 ) +
257 ( sL[ 6 ] & 0x04444444 ) + ( sL[ 7 ] & 0x04444444 ) + ( sL[ 8 ] & 0x04444444 ) +
258 ( sL[ 9 ] & 0x04444444 ) + ( sL[ 10 ] & 0x04444444 ) + ( sL[ 11 ] & 0x04444444 ) +
259 ( sL[ 12 ] & 0x04444444 ) + ( sL[ 13 ] & 0x04444444 ) + ( sL[ 14 ] & 0x04444444 ) ) >> 2;
260
261 sL[ 15 ] >>= 1;
262 tL = dataPtrL[ 18 ];
263
264 /* compare with thresholds and store results in vL */
265 vL |= ( ( ( mL & 0x0F0F0F0F ) + ( tL & 0x0F0F0F0F ) + ( sL[ 15 ] & 0x01010101 ) ) & 0x10101010 ) >> 2;
266 vL |= ( ( ( ( mL >> 4 ) & 0x0F0F0F0F ) + ( ( tL >> 4 ) & 0x0F0F0F0F ) + ( ( sL[ 15 ] >> 4 ) & 0x01010101 ) ) & 0x10101010 ) << 2;
267
268 mL = ( ( sL[ 0 ] & 0x08888888 ) + ( sL[ 1 ] & 0x08888888 ) + ( sL[ 2 ] & 0x08888888 ) +
269 ( sL[ 3 ] & 0x08888888 ) + ( sL[ 4 ] & 0x08888888 ) + ( sL[ 5 ] & 0x08888888 ) +
270 ( sL[ 6 ] & 0x08888888 ) + ( sL[ 7 ] & 0x08888888 ) + ( sL[ 8 ] & 0x08888888 ) +
271 ( sL[ 9 ] & 0x08888888 ) + ( sL[ 10 ] & 0x08888888 ) + ( sL[ 11 ] & 0x08888888 ) +
272 ( sL[ 12 ] & 0x08888888 ) + ( sL[ 13 ] & 0x08888888 ) + ( sL[ 14 ] & 0x08888888 ) ) >> 3;
273
274 sL[ 15 ] >>= 1;
275 tL = dataPtrL[ 19 ];
276
277 /* compare with thresholds and store results in vL */
278 vL |= ( ( ( mL & 0x0F0F0F0F ) + ( tL & 0x0F0F0F0F ) + ( sL[ 15 ] & 0x01010101 ) ) & 0x10101010 ) >> 1;
279 vL |= ( ( ( ( mL >> 4 ) & 0x0F0F0F0F ) + ( ( tL >> 4 ) & 0x0F0F0F0F ) + ( ( sL[ 15 ] >> 4 ) & 0x01010101 ) ) & 0x10101010 ) << 3;
280
281 vL = ~vL;
282
283 /* mask out and count bits */
284 {
285 uint32 vmL;
286 vmL = vL & dataPtrL[ 20 ];
287 bL[ 0 ] += bbf_BIT_SUM_32( vmL );
288 vmL = vL & dataPtrL[ 21 ];
289 bL[ 1 ] += bbf_BIT_SUM_32( vmL);
290 vmL = vL & dataPtrL[ 22 ];
291 bL[ 2 ] += bbf_BIT_SUM_32( vmL );
292 vmL = vL & dataPtrL[ 23 ];
293 bL[ 3 ] += bbf_BIT_SUM_32( vmL );
294 vmL = vL & dataPtrL[ 24 ];
295 bL[ 4 ] += bbf_BIT_SUM_32( vmL );
296 vmL = vL & dataPtrL[ 25 ];
297 bL[ 5 ] += bbf_BIT_SUM_32( vmL );
298 }
299
300 dataPtrL += 26;
301 }
302
303 /* compute final activity */
304 {
305 uint32 actL = ( ( bL[ 0 ] << 5 ) + ( bL[ 1 ] << 4 ) + ( bL[ 2 ] << 3 ) +
306 ( bL[ 3 ] << 2 ) + ( bL[ 4 ] << 1 ) + ( bL[ 5 ] ) );
307
308 return actL * ptrL->activityFactorE;
309 }
310 }
311
312 /* ------------------------------------------------------------------------- */
313
314 /* ========================================================================= */
315
316