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 
bbf_L04Dns2x2Ftr_init(struct bbs_Context * cpA,struct bbf_L04Dns2x2Ftr * ptrA)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 
bbf_L04Dns2x2Ftr_exit(struct bbs_Context * cpA,struct bbf_L04Dns2x2Ftr * ptrA)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 
bbf_L04Dns2x2Ftr_copy(struct bbs_Context * cpA,struct bbf_L04Dns2x2Ftr * ptrA,const struct bbf_L04Dns2x2Ftr * srcPtrA)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 
bbf_L04Dns2x2Ftr_equal(struct bbs_Context * cpA,const struct bbf_L04Dns2x2Ftr * ptrA,const struct bbf_L04Dns2x2Ftr * srcPtrA)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 
bbf_L04Dns2x2Ftr_memSize(struct bbs_Context * cpA,const struct bbf_L04Dns2x2Ftr * ptrA)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 
bbf_L04Dns2x2Ftr_memWrite(struct bbs_Context * cpA,const struct bbf_L04Dns2x2Ftr * ptrA,uint16 * memPtrA)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 
bbf_L04Dns2x2Ftr_memRead(struct bbs_Context * cpA,struct bbf_L04Dns2x2Ftr * ptrA,const uint16 * memPtrA,struct bbs_MemTbl * mtpA)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 
bbf_L04Dns2x2Ftr_activity(const struct bbf_Feature * ptrA,const uint32 * patchA)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