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/L04Dns3x3Ftr.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_L04Dns3x3Ftr_init( struct bbs_Context* cpA, 42 struct bbf_L04Dns3x3Ftr* ptrA ) 43 { 44 bbf_Feature_init( cpA, &ptrA->baseE ); 45 ptrA->baseE.typeE = ( uint32 )bbf_FT_L04_DNS_3X3_FTR; 46 ptrA->baseE.vpActivityE = bbf_L04Dns3x3Ftr_activity; 47 bbs_UInt32Arr_init( cpA, &ptrA->dataArrE ); 48 ptrA->activityFactorE = 0; 49 } 50 51 /* ------------------------------------------------------------------------- */ 52 53 void bbf_L04Dns3x3Ftr_exit( struct bbs_Context* cpA, 54 struct bbf_L04Dns3x3Ftr* 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 71 void bbf_L04Dns3x3Ftr_copy( struct bbs_Context* cpA, 72 struct bbf_L04Dns3x3Ftr* ptrA, 73 const struct bbf_L04Dns3x3Ftr* 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 82 flag bbf_L04Dns3x3Ftr_equal( struct bbs_Context* cpA, 83 const struct bbf_L04Dns3x3Ftr* ptrA, 84 const struct bbf_L04Dns3x3Ftr* 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 /* ------------------------------------------------------------------------- */ 117 118 uint32 bbf_L04Dns3x3Ftr_memSize( struct bbs_Context* cpA, 119 const struct bbf_L04Dns3x3Ftr* 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 /* ------------------------------------------------------------------------- */ 132 133 uint32 bbf_L04Dns3x3Ftr_memWrite( struct bbs_Context* cpA, 134 const struct bbf_L04Dns3x3Ftr* ptrA, 135 uint16* memPtrA ) 136 { 137 uint32 memSizeL = bbf_L04Dns3x3Ftr_memSize( cpA, ptrA ); 138 memPtrA += bbs_memWrite32( &memSizeL, memPtrA ); 139 memPtrA += bbs_memWriteUInt32( bbf_L04_DNS_3X3_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 /* ------------------------------------------------------------------------- */ 147 148 uint32 bbf_L04Dns3x3Ftr_memRead( struct bbs_Context* cpA, 149 struct bbf_L04Dns3x3Ftr* 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_L04_DNS_3X3_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_L04Dns3x3Ftr_memSize( cpA, ptrA ) ) 163 { 164 bbs_ERR0( bbs_ERR_CORRUPT_DATA, "uint32 bbf_L04Dns3x3Ftr_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 /* ------------------------------------------------------------------------- */ 181 182 int32 bbf_L04Dns3x3Ftr_activity( const struct bbf_Feature* ptrA, const uint32* patchA ) 183 { 184 const struct bbf_L04Dns3x3Ftr* ptrL = ( struct bbf_L04Dns3x3Ftr* )ptrA; 185 186 uint32 wL = ptrL->baseE.patchWidthE - 2; 187 uint32 hL = ptrL->baseE.patchHeightE - 2; 188 const uint32* dataPtrL = ptrL->dataArrE.arrPtrE; 189 uint32 iL; 190 191 uint32 borderMaskL = ( ( uint32 )1 << hL ) - 1; 192 193 uint32 sL[ 9 ]; 194 uint32 bL[ 4 ] = { 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 ]; 203 204 /* comparison of pixels with patchHeightE - 3 features */ 205 sL[ 0 ] = ( ( s1L ) ^ dataPtrL[ 0 ] ) & borderMaskL; 206 sL[ 1 ] = ( ( s1L >> 1 ) ^ dataPtrL[ 1 ] ) & borderMaskL; 207 sL[ 2 ] = ( ( s1L >> 2 ) ^ dataPtrL[ 2 ] ) & borderMaskL; 208 209 sL[ 3 ] = ( ( s2L ) ^ dataPtrL[ 3 ] ) & borderMaskL; 210 sL[ 4 ] = ( ( s2L >> 1 ) ^ dataPtrL[ 4 ] ) & borderMaskL; 211 sL[ 5 ] = ( ( s2L >> 2 ) ^ dataPtrL[ 5 ] ) & borderMaskL; 212 213 sL[ 6 ] = ( ( s3L ) ^ dataPtrL[ 6 ] ) & borderMaskL; 214 sL[ 7 ] = ( ( s3L >> 1 ) ^ dataPtrL[ 7 ] ) & borderMaskL; 215 sL[ 8 ] = ( ( s3L >> 2 ) ^ dataPtrL[ 8 ] ) & borderMaskL; 216 217 /* parallel bit counting of patchHeightE - 2 features */ 218 vL = 0; 219 220 mL = ( ( sL[ 0 ] & 0x11111111 ) + ( sL[ 1 ] & 0x11111111 ) + ( sL[ 2 ] & 0x11111111 ) + 221 ( sL[ 3 ] & 0x11111111 ) + ( sL[ 4 ] & 0x11111111 ) + ( sL[ 5 ] & 0x11111111 ) + 222 ( sL[ 6 ] & 0x11111111 ) + ( sL[ 7 ] & 0x11111111 ) + ( sL[ 8 ] & 0x11111111 ) ); 223 224 tL = dataPtrL[ 9 ]; 225 226 /* compare with thresholds and store results in vL */ 227 vL |= ( ( ( mL & 0x0F0F0F0F ) + ( tL & 0x0F0F0F0F ) ) & 0x10101010 ) >> 4; 228 vL |= ( ( ( ( mL >> 4 ) & 0x0F0F0F0F ) + ( ( tL >> 4 ) & 0x0F0F0F0F ) ) & 0x10101010 ); 229 230 /* shift values to prevent overflow in next summation */ 231 sL[ 0 ] >>= 1; sL[ 1 ] >>= 1; sL[ 2 ] >>= 1; 232 sL[ 3 ] >>= 1; sL[ 4 ] >>= 1; sL[ 5 ] >>= 1; 233 sL[ 6 ] >>= 1; sL[ 7 ] >>= 1; sL[ 8 ] >>= 1; 234 235 mL = ( ( sL[ 0 ] & 0x11111111 ) + ( sL[ 1 ] & 0x11111111 ) + ( sL[ 2 ] & 0x11111111 ) + 236 ( sL[ 3 ] & 0x11111111 ) + ( sL[ 4 ] & 0x11111111 ) + ( sL[ 5 ] & 0x11111111 ) + 237 ( sL[ 6 ] & 0x11111111 ) + ( sL[ 7 ] & 0x11111111 ) + ( sL[ 8 ] & 0x11111111 ) ); 238 239 tL = dataPtrL[ 10 ]; 240 241 /* compare with thresholds and store results in vL */ 242 vL |= ( ( ( mL & 0x0F0F0F0F ) + ( tL & 0x0F0F0F0F ) ) & 0x10101010 ) >> 3; 243 vL |= ( ( ( ( mL >> 4 ) & 0x0F0F0F0F ) + ( ( tL >> 4 ) & 0x0F0F0F0F ) ) & 0x10101010 ) << 1; 244 245 mL = ( ( sL[ 0 ] & 0x02222222 ) + ( sL[ 1 ] & 0x02222222 ) + ( sL[ 2 ] & 0x02222222 ) + 246 ( sL[ 3 ] & 0x02222222 ) + ( sL[ 4 ] & 0x02222222 ) + ( sL[ 5 ] & 0x02222222 ) + 247 ( sL[ 6 ] & 0x02222222 ) + ( sL[ 7 ] & 0x02222222 ) + ( sL[ 8 ] & 0x02222222 ) ) >> 1; 248 249 tL = dataPtrL[ 11 ]; 250 251 /* compare with thresholds and store results in vL */ 252 vL |= ( ( ( mL & 0x0F0F0F0F ) + ( tL & 0x0F0F0F0F ) ) & 0x10101010 ) >> 2; 253 vL |= ( ( ( ( mL >> 4 ) & 0x0F0F0F0F ) + ( ( tL >> 4 ) & 0x0F0F0F0F ) ) & 0x10101010 ) << 2; 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 ) ) >> 2; 258 259 tL = dataPtrL[ 12 ]; 260 261 /* compare with thresholds and store results in vL */ 262 vL |= ( ( ( mL & 0x0F0F0F0F ) + ( tL & 0x0F0F0F0F ) ) & 0x10101010 ) >> 1; 263 vL |= ( ( ( ( mL >> 4 ) & 0x0F0F0F0F ) + ( ( tL >> 4 ) & 0x0F0F0F0F ) ) & 0x10101010 ) << 3; 264 265 vL = ~vL; 266 267 /* mask out and count bits */ 268 { 269 uint32 vmL; 270 vmL = vL & dataPtrL[ 13 ]; 271 bL[ 0 ] += bbf_BIT_SUM_32( vmL ); 272 vmL = vL & dataPtrL[ 14 ]; 273 bL[ 1 ] += bbf_BIT_SUM_32( vmL); 274 vmL = vL & dataPtrL[ 15 ]; 275 bL[ 2 ] += bbf_BIT_SUM_32( vmL ); 276 vmL = vL & dataPtrL[ 16 ]; 277 bL[ 3 ] += bbf_BIT_SUM_32( vmL ); 278 } 279 280 dataPtrL += 17; 281 } 282 283 /* compute final activity */ 284 { 285 uint32 actL = ( ( bL[ 0 ] << 3 ) + ( bL[ 1 ] << 2 ) + ( bL[ 2 ] << 1 ) + bL[ 3 ] ); 286 return actL * ptrL->activityFactorE; 287 } 288 } 289 290 /* ------------------------------------------------------------------------- */ 291 292 /* ========================================================================= */ 293 294
