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 41 void 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 54 void 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 73 void 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 85 flag 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 /* ------------------------------------------------------------------------- */ 121 122 uint32 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 /* ------------------------------------------------------------------------- */ 137 138 uint32 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 /* ------------------------------------------------------------------------- */ 153 154 uint32 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 /* ------------------------------------------------------------------------- */ 188 189 int32 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 /* ========================================================================= */ 241 242
