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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 // Original code is licensed as follows: | 6 // Original code is licensed as follows: |
7 /* | 7 /* |
8 * Copyright 2009 ZXing authors | 8 * Copyright 2009 ZXing authors |
9 * | 9 * |
10 * Licensed under the Apache License, Version 2.0 (the "License"); | 10 * Licensed under the Apache License, Version 2.0 (the "License"); |
11 * you may not use this file except in compliance with the License. | 11 * you may not use this file except in compliance with the License. |
12 * You may obtain a copy of the License at | 12 * You may obtain a copy of the License at |
13 * | 13 * |
14 * http://www.apache.org/licenses/LICENSE-2.0 | 14 * http://www.apache.org/licenses/LICENSE-2.0 |
15 * | 15 * |
16 * Unless required by applicable law or agreed to in writing, software | 16 * Unless required by applicable law or agreed to in writing, software |
17 * distributed under the License is distributed on an "AS IS" BASIS, | 17 * distributed under the License is distributed on an "AS IS" BASIS, |
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
19 * See the License for the specific language governing permissions and | 19 * See the License for the specific language governing permissions and |
20 * limitations under the License. | 20 * limitations under the License. |
21 */ | 21 */ |
22 | 22 |
23 #include "barcode.h" | 23 #include "../barcode.h" |
24 #include "include/BC_ResultPoint.h" | 24 #include "../BC_ResultPoint.h" |
25 #include "include/BC_PDF417DetectorResult.h" | 25 #include "../BC_BinaryBitmap.h" |
26 #include "include/BC_BinaryBitmap.h" | 26 #include "../common/BC_CommonBitMatrix.h" |
27 #include "include/BC_CommonBitMatrix.h" | 27 #include "../common/BC_CommonBitArray.h" |
28 #include "include/BC_CommonBitArray.h" | 28 #include "BC_PDF417DetectorResult.h" |
29 #include "include/BC_PDF417Detector.h" | 29 #include "BC_PDF417Detector.h" |
30 #define INTERGER_MAX 2147483647 | 30 #define INTERGER_MAX 2147483647 |
31 FX_INT32 CBC_Detector::INDEXES_START_PATTERN[] = {0, 4, 1, 5}; | 31 FX_INT32 CBC_Detector::INDEXES_START_PATTERN[] = {0, 4, 1, 5}; |
32 FX_INT32 CBC_Detector::INDEXES_STOP_PATTERN[] = {6, 2, 7, 3}; | 32 FX_INT32 CBC_Detector::INDEXES_STOP_PATTERN[] = {6, 2, 7, 3}; |
33 FX_INT32 CBC_Detector::INTEGER_MATH_SHIFT = 8; | 33 FX_INT32 CBC_Detector::INTEGER_MATH_SHIFT = 8; |
34 FX_INT32 CBC_Detector::PATTERN_MATCH_RESULT_SCALE_FACTOR = 1 << INTEGER_MATH_SHI
FT; | 34 FX_INT32 CBC_Detector::PATTERN_MATCH_RESULT_SCALE_FACTOR = 1 << INTEGER_MATH_SHI
FT; |
35 FX_INT32 CBC_Detector::MAX_AVG_VARIANCE = (FX_INT32) (PATTERN_MATCH_RESULT_SCALE
_FACTOR * 0.42f); | 35 FX_INT32 CBC_Detector::MAX_AVG_VARIANCE = (FX_INT32) (PATTERN_MATCH_RESULT_SCALE
_FACTOR * 0.42f); |
36 FX_INT32 CBC_Detector::MAX_INDIVIDUAL_VARIANCE = (FX_INT32) (PATTERN_MATCH_RESUL
T_SCALE_FACTOR * 0.8f); | 36 FX_INT32 CBC_Detector::MAX_INDIVIDUAL_VARIANCE = (FX_INT32) (PATTERN_MATCH_RESUL
T_SCALE_FACTOR * 0.8f); |
37 FX_INT32 CBC_Detector::START_PATTERN[] = {8, 1, 1, 1, 1, 1, 1, 3}; | 37 FX_INT32 CBC_Detector::START_PATTERN[] = {8, 1, 1, 1, 1, 1, 1, 3}; |
38 FX_INT32 CBC_Detector::STOP_PATTERN[] = {7, 1, 1, 3, 1, 1, 1, 2, 1}; | 38 FX_INT32 CBC_Detector::STOP_PATTERN[] = {7, 1, 1, 3, 1, 1, 1, 2, 1}; |
39 FX_INT32 CBC_Detector::MAX_PIXEL_DRIFT = 3; | 39 FX_INT32 CBC_Detector::MAX_PIXEL_DRIFT = 3; |
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302 FX_INT32 scaledPattern = pattern[x] * unitBarWidth; | 302 FX_INT32 scaledPattern = pattern[x] * unitBarWidth; |
303 FX_INT32 variance = counter > scaledPattern ? counter - scaledPattern :
scaledPattern - counter; | 303 FX_INT32 variance = counter > scaledPattern ? counter - scaledPattern :
scaledPattern - counter; |
304 if (variance > maxIndividualVariance) { | 304 if (variance > maxIndividualVariance) { |
305 return INTERGER_MAX; | 305 return INTERGER_MAX; |
306 } | 306 } |
307 totalVariance += variance; | 307 totalVariance += variance; |
308 } | 308 } |
309 return totalVariance / total; | 309 return totalVariance / total; |
310 } | 310 } |
311 | 311 |
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