Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_PDF417ScanningDecoder.cpp

Index: xfa/src/fxbarcode/src/BC_PDF417ScanningDecoder.cpp
diff --git a/xfa/src/fxbarcode/src/BC_PDF417ScanningDecoder.cpp b/xfa/src/fxbarcode/src/BC_PDF417ScanningDecoder.cpp
deleted file mode 100644
index 481288380064a872c9e4a80ecf2ea9b06b1f7cab..0000000000000000000000000000000000000000
--- a/xfa/src/fxbarcode/src/BC_PDF417ScanningDecoder.cpp
+++ /dev/null
@@ -1,596 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-// Original code is licensed as follows:
-/*
- * Copyright 2013 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "barcode.h"
-#include "include/BC_DecoderResult.h"
-#include "include/BC_ResultPoint.h"
-#include "include/BC_PDF417Codeword.h"
-#include "include/BC_CommonBitMatrix.h"
-#include "include/BC_PDF417Common.h"
-#include "include/BC_PDF417BarcodeValue.h"
-#include "include/BC_PDF417BarcodeMetadata.h"
-#include "include/BC_PDF417BoundingBox.h"
-#include "include/BC_PDF417DetectionResultColumn.h"
-#include "include/BC_PDF417DetectionResultRowIndicatorColumn.h"
-#include "include/BC_PDF417DetectionResult.h"
-#include "include/BC_PDF417DecodedBitStreamParser.h"
-#include "include/BC_PDF417CodewordDecoder.h"
-#include "include/BC_PDF417DecodedBitStreamParser.h"
-#include "include/BC_PDF417ECModulusPoly.h"
-#include "include/BC_PDF417ECModulusGF.h"
-#include "include/BC_PDF417ECErrorCorrection.h"
-#include "include/BC_PDF417DecodedBitStreamParser.h"
-#include "include/BC_PDF417ScanningDecoder.h"
-FX_INT32 CBC_PDF417ScanningDecoder::CODEWORD_SKEW_SIZE = 2;
-FX_INT32 CBC_PDF417ScanningDecoder::MAX_ERRORS = 3;
-FX_INT32 CBC_PDF417ScanningDecoder::MAX_EC_CODEWORDS = 512;
-CBC_PDF417ECErrorCorrection* CBC_PDF417ScanningDecoder::errorCorrection = NULL;
-CBC_PDF417ScanningDecoder::CBC_PDF417ScanningDecoder()
-{
-}
-CBC_PDF417ScanningDecoder::~CBC_PDF417ScanningDecoder()
-{
-}
-void CBC_PDF417ScanningDecoder::Initialize()
-{
-    errorCorrection = FX_NEW CBC_PDF417ECErrorCorrection;
-}
-void CBC_PDF417ScanningDecoder::Finalize()
-{
-    delete errorCorrection;
-}
-CBC_CommonDecoderResult* CBC_PDF417ScanningDecoder::decode(CBC_CommonBitMatrix* image, CBC_ResultPoint* imageTopLeft, CBC_ResultPoint* imageBottomLeft, CBC_ResultPoint* imageTopRight,
-        CBC_ResultPoint* imageBottomRight, FX_INT32 minCodewordWidth, FX_INT32 maxCodewordWidth, FX_INT32 &e)
-{
-    CBC_BoundingBox* boundingBox = FX_NEW CBC_BoundingBox(image, imageTopLeft, imageBottomLeft, imageTopRight, imageBottomRight, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    CBC_DetectionResultRowIndicatorColumn* leftRowIndicatorColumn = NULL;
-    CBC_DetectionResultRowIndicatorColumn* rightRowIndicatorColumn = NULL;
-    CBC_DetectionResult* detectionResult = NULL;
-    for (FX_INT32 i = 0; i < 2; i++) {
-        if (imageTopLeft != NULL) {
-            leftRowIndicatorColumn = getRowIndicatorColumn(image, boundingBox, *imageTopLeft, TRUE, minCodewordWidth, maxCodewordWidth);
-        }
-        if (imageTopRight != NULL) {
-            rightRowIndicatorColumn = getRowIndicatorColumn(image, boundingBox, *imageTopRight, FALSE, minCodewordWidth, maxCodewordWidth);
-        }
-        detectionResult = merge(leftRowIndicatorColumn, rightRowIndicatorColumn, e);
-        if (e != BCExceptionNO) {
-            e = BCExceptiontNotFoundInstance;
-            delete leftRowIndicatorColumn;
-            delete rightRowIndicatorColumn;
-            delete boundingBox;
-            return NULL;
-        }
-        if (i == 0 && (detectionResult->getBoundingBox()->getMinY() < boundingBox->getMinY() || detectionResult->getBoundingBox()->getMaxY() > boundingBox->getMaxY())) {
-            delete boundingBox;
-            boundingBox = detectionResult->getBoundingBox();
-        } else {
-            detectionResult->setBoundingBox(boundingBox);
-            break;
-        }
-    }
-    FX_INT32 maxBarcodeColumn = detectionResult->getBarcodeColumnCount() + 1;
-    detectionResult->setDetectionResultColumn(0, leftRowIndicatorColumn);
-    detectionResult->setDetectionResultColumn(maxBarcodeColumn, rightRowIndicatorColumn);
-    FX_BOOL leftToRight = leftRowIndicatorColumn != NULL;
-    for (FX_INT32 barcodeColumnCount = 1; barcodeColumnCount <= maxBarcodeColumn; barcodeColumnCount++) {
-        FX_INT32 barcodeColumn = leftToRight ? barcodeColumnCount : maxBarcodeColumn - barcodeColumnCount;
-        if (detectionResult->getDetectionResultColumn(barcodeColumn) != NULL) {
-            continue;
-        }
-        CBC_DetectionResultColumn* detectionResultColumn = NULL;
-        if (barcodeColumn == 0 || barcodeColumn == maxBarcodeColumn) {
-            detectionResultColumn = FX_NEW CBC_DetectionResultRowIndicatorColumn(boundingBox, barcodeColumn == 0);
-        } else {
-            detectionResultColumn = FX_NEW CBC_DetectionResultColumn(boundingBox);
-        }
-        detectionResult->setDetectionResultColumn(barcodeColumn, detectionResultColumn);
-        FX_INT32 startColumn = -1;
-        FX_INT32 previousStartColumn = startColumn;
-        for (FX_INT32 imageRow = boundingBox->getMinY(); imageRow <= boundingBox->getMaxY(); imageRow++) {
-            startColumn = getStartColumn(detectionResult, barcodeColumn, imageRow, leftToRight);
-            if (startColumn < 0 || startColumn > boundingBox->getMaxX()) {
-                if (previousStartColumn == -1) {
-                    continue;
-                }
-                startColumn = previousStartColumn;
-            }
-            CBC_Codeword* codeword = detectCodeword(image, boundingBox->getMinX(), boundingBox->getMaxX(), leftToRight, startColumn, imageRow, minCodewordWidth, maxCodewordWidth);
-            if (codeword != NULL) {
-                detectionResultColumn->setCodeword(imageRow, codeword);
-                previousStartColumn = startColumn;
-                minCodewordWidth = minCodewordWidth < codeword->getWidth() ? minCodewordWidth : codeword->getWidth();
-                maxCodewordWidth = maxCodewordWidth > codeword->getWidth() ? maxCodewordWidth : codeword->getWidth();
-            }
-        }
-    }
-    CBC_CommonDecoderResult* decoderresult = createDecoderResult(detectionResult, e);
-    if (e != BCExceptionNO) {
-        delete detectionResult;
-        return NULL;
-    }
-    return decoderresult;
-}
-CFX_ByteString CBC_PDF417ScanningDecoder::toString(CFX_PtrArray* barcodeMatrix)
-{
-    CFX_ByteString result;
-    for (FX_INT32 row = 0; row < barcodeMatrix->GetSize(); row++) {
-        result += row;
-        FX_INT32 l = 0;
-        for (; l < ((CFX_PtrArray*)barcodeMatrix->GetAt(row))->GetSize(); l++) {
-            CBC_BarcodeValue* barcodeValue = (CBC_BarcodeValue*)((CFX_PtrArray*)barcodeMatrix->GetAt(row))->GetAt(l);
-            if (barcodeValue->getValue()->GetSize() == 0) {
-                result +=  "";
-            } else {
-                result += barcodeValue->getValue()->GetAt(0);
-                result += barcodeValue->getConfidence(barcodeValue->getValue()->GetAt(0));
-            }
-        }
-    }
-    return result;
-}
-CBC_DetectionResult* CBC_PDF417ScanningDecoder::merge(CBC_DetectionResultRowIndicatorColumn* leftRowIndicatorColumn, CBC_DetectionResultRowIndicatorColumn* rightRowIndicatorColumn, FX_INT32 &e)
-{
-    if (leftRowIndicatorColumn == NULL && rightRowIndicatorColumn == NULL) {
-        e = BCExceptionIllegalArgument;
-        return NULL;
-    }
-    CBC_BarcodeMetadata* barcodeMetadata = getBarcodeMetadata(leftRowIndicatorColumn, rightRowIndicatorColumn);
-    if (barcodeMetadata == NULL) {
-        e = BCExceptionCannotMetadata;
-        return NULL;
-    }
-    CBC_BoundingBox* leftboundingBox = adjustBoundingBox(leftRowIndicatorColumn, e);
-    if (e != BCExceptionNO) {
-        delete barcodeMetadata;
-        return NULL;
-    }
-    CBC_BoundingBox* rightboundingBox = adjustBoundingBox(rightRowIndicatorColumn, e);
-    if (e != BCExceptionNO) {
-        delete barcodeMetadata;
-        return NULL;
-    }
-    CBC_BoundingBox* boundingBox = CBC_BoundingBox::merge(leftboundingBox, rightboundingBox, e);
-    if (e != BCExceptionNO) {
-        delete barcodeMetadata;
-        return NULL;
-    }
-    CBC_DetectionResult* detectionresult = FX_NEW CBC_DetectionResult(barcodeMetadata, boundingBox);
-    return detectionresult;
-}
-CBC_BoundingBox* CBC_PDF417ScanningDecoder::adjustBoundingBox(CBC_DetectionResultRowIndicatorColumn* rowIndicatorColumn, FX_INT32 &e)
-{
-    if (rowIndicatorColumn == NULL) {
-        return NULL;
-    }
-    CFX_Int32Array* rowHeights = rowIndicatorColumn->getRowHeights(e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    FX_INT32 maxRowHeight = getMax(*rowHeights);
-    FX_INT32 missingStartRows = 0;
-    for (FX_INT32 i = 0; i < rowHeights->GetSize(); i++) {
-        FX_INT32 rowHeight = rowHeights->GetAt(i);
-        missingStartRows += maxRowHeight - rowHeight;
-        if (rowHeight > 0) {
-            break;
-        }
-    }
-    CFX_PtrArray* codewords = rowIndicatorColumn->getCodewords();
-    for (FX_INT32 row = 0; missingStartRows > 0 && codewords->GetAt(row) == NULL; row++) {
-        missingStartRows--;
-    }
-    FX_INT32 missingEndRows = 0;
-    for (FX_INT32 row1 = rowHeights->GetSize() - 1; row1 >= 0; row1--) {
-        missingEndRows += maxRowHeight - rowHeights->GetAt(row1);
-        if (rowHeights->GetAt(row1) > 0) {
-            break;
-        }
-    }
-    for (FX_INT32 row2 = codewords->GetSize() - 1; missingEndRows > 0 && codewords->GetAt(row2) == NULL; row2--) {
-        missingEndRows--;
-    }
-    CBC_BoundingBox* boundingBox = rowIndicatorColumn->getBoundingBox()->addMissingRows(missingStartRows, missingEndRows, rowIndicatorColumn->isLeft(), e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return boundingBox;
-}
-FX_INT32 CBC_PDF417ScanningDecoder::getMax(CFX_Int32Array& values)
-{
-    FX_INT32 maxValue = -1;
-    for (FX_INT32 i = 0; i < values.GetSize(); i++) {
-        FX_INT32 value = values.GetAt(i);
-        maxValue = maxValue > value ? maxValue : value;
-    }
-    return maxValue;
-}
-CBC_BarcodeMetadata* CBC_PDF417ScanningDecoder::getBarcodeMetadata(CBC_DetectionResultRowIndicatorColumn* leftRowIndicatorColumn,
-        CBC_DetectionResultRowIndicatorColumn* rightRowIndicatorColumn)
-{
-    CBC_BarcodeMetadata* leftBarcodeMetadata = NULL;
-    CBC_BarcodeMetadata* rightBarcodeMetadata = NULL;
-    if (leftRowIndicatorColumn == NULL || (leftBarcodeMetadata = leftRowIndicatorColumn->getBarcodeMetadata()) == NULL) {
-        return rightRowIndicatorColumn == NULL ? NULL : rightRowIndicatorColumn->getBarcodeMetadata();
-    }
-    if (rightRowIndicatorColumn == NULL || (rightBarcodeMetadata = rightRowIndicatorColumn->getBarcodeMetadata()) == NULL) {
-        return leftRowIndicatorColumn == NULL ? NULL : leftRowIndicatorColumn->getBarcodeMetadata();
-    }
-    if (leftBarcodeMetadata->getColumnCount() != rightBarcodeMetadata->getColumnCount() &&
-            leftBarcodeMetadata->getErrorCorrectionLevel() != rightBarcodeMetadata->getErrorCorrectionLevel() &&
-            leftBarcodeMetadata->getRowCount() != rightBarcodeMetadata->getRowCount()) {
-        delete leftBarcodeMetadata;
-        delete rightBarcodeMetadata;
-        return NULL;
-    }
-    delete rightBarcodeMetadata;
-    return leftBarcodeMetadata;
-}
-CBC_DetectionResultRowIndicatorColumn* CBC_PDF417ScanningDecoder::getRowIndicatorColumn(CBC_CommonBitMatrix* image, CBC_BoundingBox* boundingBox, CBC_ResultPoint startPoint,
-        FX_BOOL leftToRight, FX_INT32 minCodewordWidth, FX_INT32 maxCodewordWidth)
-{
-    CBC_DetectionResultRowIndicatorColumn* rowIndicatorColumn = FX_NEW CBC_DetectionResultRowIndicatorColumn(boundingBox, leftToRight);
-    for (FX_INT32 i = 0; i < 2; i++) {
-        FX_INT32 increment = i == 0 ? 1 : -1;
-        FX_INT32 startColumn = (FX_INT32) startPoint.GetX();
-        for (FX_INT32 imageRow = (FX_INT32) startPoint.GetY(); imageRow <= boundingBox->getMaxY() && imageRow >= boundingBox->getMinY(); imageRow += increment) {
-            CBC_Codeword* codeword = detectCodeword(image, 0, image->GetWidth(), leftToRight, startColumn, imageRow, minCodewordWidth, maxCodewordWidth);
-            if (codeword != NULL) {
-                rowIndicatorColumn->setCodeword(imageRow, codeword);
-                if (leftToRight) {
-                    startColumn = codeword->getStartX();
-                } else {
-                    startColumn = codeword->getEndX();
-                }
-            }
-        }
-    }
-    return rowIndicatorColumn;
-}
-void CBC_PDF417ScanningDecoder::adjustCodewordCount(CBC_DetectionResult* detectionResult, CFX_PtrArray* barcodeMatrix, FX_INT32 &e)
-{
-    CFX_Int32Array* numberOfCodewords = ((CBC_BarcodeValue*)((CFX_PtrArray*)barcodeMatrix->GetAt(0))->GetAt(1))->getValue();
-    FX_INT32 calculatedNumberOfCodewords = detectionResult->getBarcodeColumnCount() * detectionResult->getBarcodeRowCount() - getNumberOfECCodeWords(detectionResult->getBarcodeECLevel());
-    if (numberOfCodewords->GetSize() == 0) {
-        if (calculatedNumberOfCodewords < 1 || calculatedNumberOfCodewords > CBC_PDF417Common::MAX_CODEWORDS_IN_BARCODE) {
-            e = BCExceptiontNotFoundInstance;
-            delete numberOfCodewords;
-            BC_EXCEPTION_CHECK_ReturnVoid(e);
-        }
-        ((CBC_BarcodeValue*)((CFX_PtrArray*)barcodeMatrix->GetAt(0))->GetAt(1))->setValue(calculatedNumberOfCodewords);
-    } else if (numberOfCodewords->GetAt(0) != calculatedNumberOfCodewords) {
-        ((CBC_BarcodeValue*)((CFX_PtrArray*)barcodeMatrix->GetAt(0))->GetAt(1))->setValue(calculatedNumberOfCodewords);
-    }
-    delete numberOfCodewords;
-}
-CBC_CommonDecoderResult* CBC_PDF417ScanningDecoder::createDecoderResult(CBC_DetectionResult* detectionResult, FX_INT32 &e)
-{
-    CFX_PtrArray* barcodeMatrix = createBarcodeMatrix(detectionResult);
-    adjustCodewordCount(detectionResult, barcodeMatrix, e);
-    if (e != BCExceptionNO) {
-        for (FX_INT32 i = 0; i < barcodeMatrix->GetSize(); i++) {
-            CFX_PtrArray* temp = (CFX_PtrArray*)barcodeMatrix->GetAt(i);
-            for (FX_INT32 j = 0; j < temp->GetSize(); j++) {
-                delete (CBC_BarcodeValue*)temp->GetAt(j);
-            }
-            temp->RemoveAll();
-            delete temp;
-        }
-        barcodeMatrix->RemoveAll();
-        delete barcodeMatrix;
-        return NULL;
-    }
-    CFX_Int32Array erasures;
-    CFX_Int32Array codewords;
-    codewords.SetSize(detectionResult->getBarcodeRowCount() * detectionResult->getBarcodeColumnCount());
-    CFX_PtrArray ambiguousIndexValuesList;
-    CFX_Int32Array ambiguousIndexesList;
-    for (FX_INT32 row = 0; row < detectionResult->getBarcodeRowCount(); row++) {
-        for (FX_INT32 l = 0; l < detectionResult->getBarcodeColumnCount(); l++) {
-            CFX_Int32Array* values = ((CBC_BarcodeValue*)((CFX_PtrArray*)barcodeMatrix->GetAt(row))->GetAt(l + 1))->getValue();
-            FX_INT32 codewordIndex = row * detectionResult->getBarcodeColumnCount() + l;
-            if (values->GetSize() == 0) {
-                erasures.Add(codewordIndex);
-            } else if (values->GetSize() == 1) {
-                codewords[codewordIndex] = values->GetAt(0);
-            } else {
-                ambiguousIndexesList.Add(codewordIndex);
-                ambiguousIndexValuesList.Add(values);
-            }
-        }
-    }
-    CFX_PtrArray ambiguousIndexValues;
-    ambiguousIndexValues.SetSize(ambiguousIndexValuesList.GetSize());
-    for (FX_INT32 i = 0; i < ambiguousIndexValues.GetSize(); i++) {
-        ambiguousIndexValues.SetAt(i, ambiguousIndexValuesList.GetAt(i));
-    }
-    for (FX_INT32 l = 0; l < barcodeMatrix->GetSize(); l++) {
-        CFX_PtrArray* temp = (CFX_PtrArray*)barcodeMatrix->GetAt(l);
-        for (FX_INT32 j = 0; j < temp->GetSize(); j++) {
-            delete (CBC_BarcodeValue*)temp->GetAt(j);
-        }
-        temp->RemoveAll();
-        delete temp;
-    }
-    barcodeMatrix->RemoveAll();
-    delete barcodeMatrix;
-    CBC_CommonDecoderResult* decoderResult = createDecoderResultFromAmbiguousValues(detectionResult->getBarcodeECLevel(), codewords, erasures, ambiguousIndexesList, ambiguousIndexValues, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return decoderResult;
-}
-CBC_CommonDecoderResult* CBC_PDF417ScanningDecoder::createDecoderResultFromAmbiguousValues(FX_INT32 ecLevel, CFX_Int32Array &codewords, CFX_Int32Array &erasureArray, CFX_Int32Array &ambiguousIndexes,
-        CFX_PtrArray& ambiguousIndexValues, FX_INT32 &e)
-{
-    CFX_Int32Array ambiguousIndexCount;
-    ambiguousIndexCount.SetSize(ambiguousIndexes.GetSize());
-    FX_INT32 tries = 100;
-    while (tries-- > 0) {
-        for (FX_INT32 l = 0; l < ambiguousIndexCount.GetSize(); l++) {
-            codewords[ambiguousIndexes[l]] = ((CFX_Int32Array*)ambiguousIndexValues.GetAt(l))->GetAt(ambiguousIndexCount[l]);
-        }
-        CBC_CommonDecoderResult* decoderResult = decodeCodewords(codewords, ecLevel, erasureArray, e);
-        if (e != BCExceptionNO) {
-            e = BCExceptionNO;
-            continue;
-        } else {
-            return decoderResult;
-        }
-        if (ambiguousIndexCount.GetSize() == 0) {
-            e = BCExceptionChecksumInstance;
-            return NULL;
-        }
-        for (FX_INT32 i = 0; i < ambiguousIndexCount.GetSize(); i++) {
-            if (ambiguousIndexCount[i] < ((CFX_Int32Array*)(ambiguousIndexValues.GetAt(i)))->GetSize() - 1) {
-                ambiguousIndexCount[i]++;
-                break;
-            } else {
-                ambiguousIndexCount[i] = 0;
-                if (i == ambiguousIndexCount.GetSize() - 1) {
-                    e = BCExceptionChecksumInstance;
-                    return NULL;
-                }
-            }
-        }
-    }
-    e = BCExceptionChecksumInstance;
-    return NULL;
-}
-CFX_PtrArray* CBC_PDF417ScanningDecoder::createBarcodeMatrix(CBC_DetectionResult* detectionResult)
-{
-    CFX_PtrArray* barcodeMatrix = FX_NEW CFX_PtrArray;
-    barcodeMatrix->SetSize(detectionResult->getBarcodeRowCount());
-    CFX_PtrArray* temp = NULL;
-    FX_INT32 colume = 0;
-    for (FX_INT32 row = 0; row < barcodeMatrix->GetSize(); row++) {
-        temp = FX_NEW CFX_PtrArray;
-        temp->SetSize(detectionResult->getBarcodeColumnCount() + 2);
-        for (colume = 0; colume < detectionResult->getBarcodeColumnCount() + 2; colume++) {
-            temp->SetAt(colume, FX_NEW CBC_BarcodeValue());
-        }
-        barcodeMatrix->SetAt(row, temp);
-    }
-    colume = -1;
-    for (FX_INT32 i = 0; i < detectionResult->getDetectionResultColumns().GetSize(); i++) {
-        CBC_DetectionResultColumn* detectionResultColumn = (CBC_DetectionResultColumn*) detectionResult->getDetectionResultColumns().GetAt(i);
-        colume++;
-        if (detectionResultColumn == NULL) {
-            continue;
-        }
-        CFX_PtrArray* temp = detectionResultColumn->getCodewords();
-        for (FX_INT32 l = 0; l < temp->GetSize(); l++) {
-            CBC_Codeword* codeword = (CBC_Codeword*) temp->GetAt(l);
-            if (codeword == NULL || codeword->getRowNumber() == -1) {
-                continue;
-            }
-            ((CBC_BarcodeValue*)((CFX_PtrArray*)barcodeMatrix->GetAt(codeword->getRowNumber()))->GetAt(colume))->setValue(codeword->getValue());
-        }
-    }
-    return barcodeMatrix;
-}
-FX_BOOL CBC_PDF417ScanningDecoder::isValidBarcodeColumn(CBC_DetectionResult* detectionResult, FX_INT32 barcodeColumn)
-{
-    return barcodeColumn >= 0 && barcodeColumn <= detectionResult->getBarcodeColumnCount() + 1;
-}
-FX_INT32 CBC_PDF417ScanningDecoder::getStartColumn(CBC_DetectionResult* detectionResult, FX_INT32 barcodeColumn, FX_INT32 imageRow, FX_BOOL leftToRight)
-{
-    FX_INT32 offset = leftToRight ? 1 : -1;
-    CBC_Codeword* codeword = NULL;
-    if (isValidBarcodeColumn(detectionResult, barcodeColumn - offset)) {
-        codeword = detectionResult->getDetectionResultColumn(barcodeColumn - offset)->getCodeword(imageRow);
-    }
-    if (codeword != NULL) {
-        return leftToRight ? codeword->getEndX() : codeword->getStartX();
-    }
-    codeword = detectionResult->getDetectionResultColumn(barcodeColumn)->getCodewordNearby(imageRow);
-    if (codeword != NULL) {
-        return leftToRight ? codeword->getStartX() : codeword->getEndX();
-    }
-    if (isValidBarcodeColumn(detectionResult, barcodeColumn - offset)) {
-        codeword = detectionResult->getDetectionResultColumn(barcodeColumn - offset)->getCodewordNearby(imageRow);
-    }
-    if (codeword != NULL) {
-        return leftToRight ? codeword->getEndX() : codeword->getStartX();
-    }
-    FX_INT32 skippedColumns = 0;
-    while (isValidBarcodeColumn(detectionResult, barcodeColumn - offset)) {
-        barcodeColumn -= offset;
-        for (FX_INT32 i = 0; i < detectionResult->getDetectionResultColumn(barcodeColumn)->getCodewords()->GetSize(); i++) {
-            CBC_Codeword* previousRowCodeword = (CBC_Codeword*) detectionResult->getDetectionResultColumn(barcodeColumn)->getCodewords()->GetAt(i);
-            if (previousRowCodeword != NULL) {
-                return (leftToRight ? previousRowCodeword->getEndX() : previousRowCodeword->getStartX()) +
-                       offset * skippedColumns * (previousRowCodeword->getEndX() - previousRowCodeword->getStartX());
-            }
-        }
-        skippedColumns++;
-    }
-    return leftToRight ? detectionResult->getBoundingBox()->getMinX() : detectionResult->getBoundingBox()->getMaxX();
-}
-CBC_Codeword* CBC_PDF417ScanningDecoder::detectCodeword(CBC_CommonBitMatrix* image, FX_INT32 minColumn, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 startColumn,
-        FX_INT32 imageRow, FX_INT32 minCodewordWidth, FX_INT32 maxCodewordWidth)
-{
-    startColumn = adjustCodewordStartColumn(image, minColumn, maxColumn, leftToRight, startColumn, imageRow);
-    CFX_Int32Array* moduleBitCount = getModuleBitCount(image, minColumn, maxColumn, leftToRight, startColumn, imageRow);
-    if (moduleBitCount == NULL) {
-        return NULL;
-    }
-    FX_INT32 endColumn;
-    FX_INT32 codewordBitCount = CBC_PDF417Common::getBitCountSum(*moduleBitCount);
-    if (leftToRight) {
-        endColumn = startColumn + codewordBitCount;
-    } else {
-        for (FX_INT32 i = 0; i < moduleBitCount->GetSize() >> 1; i++) {
-            FX_INT32 tmpCount = moduleBitCount->GetAt(i);
-            moduleBitCount->SetAt(i, moduleBitCount->GetAt(moduleBitCount->GetSize() - 1 - i));
-            moduleBitCount->SetAt(moduleBitCount->GetSize() - 1 - i, tmpCount);
-        }
-        endColumn = startColumn;
-        startColumn = endColumn - codewordBitCount;
-    }
-    FX_INT32 decodedValue = CBC_PDF417CodewordDecoder::getDecodedValue(*moduleBitCount);
-    FX_INT32 codeword = CBC_PDF417Common::getCodeword(decodedValue);
-    delete moduleBitCount;
-    if (codeword == -1) {
-        return NULL;
-    }
-    return FX_NEW CBC_Codeword(startColumn, endColumn, getCodewordBucketNumber(decodedValue), codeword);
-}
-CFX_Int32Array* CBC_PDF417ScanningDecoder::getModuleBitCount(CBC_CommonBitMatrix* image, FX_INT32 minColumn, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 startColumn, FX_INT32 imageRow)
-{
-    FX_INT32 imageColumn = startColumn;
-    CFX_Int32Array* moduleBitCount = FX_NEW CFX_Int32Array;
-    moduleBitCount->SetSize(8);
-    FX_INT32 moduleNumber = 0;
-    FX_INT32 increment = leftToRight ? 1 : -1;
-    FX_BOOL previousPixelValue = leftToRight;
-    while (((leftToRight && imageColumn < maxColumn) || (!leftToRight && imageColumn >= minColumn)) && moduleNumber < moduleBitCount->GetSize()) {
-        if (image->Get(imageColumn, imageRow) == previousPixelValue) {
-            moduleBitCount->SetAt(moduleNumber, moduleBitCount->GetAt(moduleNumber) + 1);
-            imageColumn += increment;
-        } else {
-            moduleNumber++;
-            previousPixelValue = !previousPixelValue;
-        }
-    }
-    if (moduleNumber == moduleBitCount->GetSize() || (((leftToRight && imageColumn == maxColumn) || (!leftToRight && imageColumn == minColumn)) && moduleNumber == moduleBitCount->GetSize() - 1)) {
-        return moduleBitCount;
-    }
-    delete moduleBitCount;
-    return NULL;
-}
-FX_INT32 CBC_PDF417ScanningDecoder::getNumberOfECCodeWords(FX_INT32 barcodeECLevel)
-{
-    return 2 << barcodeECLevel;
-}
-FX_INT32 CBC_PDF417ScanningDecoder::adjustCodewordStartColumn(CBC_CommonBitMatrix* image, FX_INT32 minColumn, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 codewordStartColumn, FX_INT32 imageRow)
-{
-    FX_INT32 correctedStartColumn = codewordStartColumn;
-    FX_INT32 increment = leftToRight ? -1 : 1;
-    for (FX_INT32 i = 0; i < 2; i++) {
-        FX_BOOL l = image->Get(correctedStartColumn, imageRow);
-        while (((leftToRight && correctedStartColumn >= minColumn) || (!leftToRight && correctedStartColumn < maxColumn)) && leftToRight == image->Get(correctedStartColumn, imageRow)) {
-            if (abs(codewordStartColumn - correctedStartColumn) > CODEWORD_SKEW_SIZE) {
-                return codewordStartColumn;
-            }
-            correctedStartColumn += increment;
-        }
-        increment = -increment;
-        leftToRight = !leftToRight;
-    }
-    return correctedStartColumn;
-}
-FX_BOOL CBC_PDF417ScanningDecoder::checkCodewordSkew(FX_INT32 codewordSize, FX_INT32 minCodewordWidth, FX_INT32 maxCodewordWidth)
-{
-    return minCodewordWidth - CODEWORD_SKEW_SIZE <= codewordSize && codewordSize <= maxCodewordWidth + CODEWORD_SKEW_SIZE;
-}
-CBC_CommonDecoderResult* CBC_PDF417ScanningDecoder::decodeCodewords(CFX_Int32Array &codewords, FX_INT32 ecLevel, CFX_Int32Array &erasures, FX_INT32 &e)
-{
-    if (codewords.GetSize() == 0) {
-        e = BCExceptionFormatInstance;
-        return NULL;
-    }
-    FX_INT32 numECCodewords = 1 << (ecLevel + 1);
-    FX_INT32 correctedErrorsCount = correctErrors(codewords, erasures, numECCodewords, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e , NULL);
-    verifyCodewordCount(codewords, numECCodewords, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    CFX_ByteString bytestring;
-    CBC_CommonDecoderResult* decoderResult = CBC_DecodedBitStreamPaser::decode(codewords, bytestring.FormatInteger(ecLevel), e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return decoderResult;
-}
-FX_INT32 CBC_PDF417ScanningDecoder::correctErrors(CFX_Int32Array &codewords, CFX_Int32Array &erasures, FX_INT32 numECCodewords, FX_INT32 &e)
-{
-    if ((erasures.GetSize() != 0 && erasures.GetSize() > (numECCodewords / 2 + MAX_ERRORS)) || numECCodewords < 0 || numECCodewords > MAX_EC_CODEWORDS) {
-        e = BCExceptionChecksumInstance;
-        return -1;
-    }
-    FX_INT32 result = CBC_PDF417ECErrorCorrection::decode(codewords, numECCodewords, erasures, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, -1);
-    return result;
-}
-void CBC_PDF417ScanningDecoder::verifyCodewordCount(CFX_Int32Array &codewords, FX_INT32 numECCodewords, FX_INT32 &e)
-{
-    if (codewords.GetSize() < 4) {
-        e = BCExceptionFormatInstance;
-        return;
-    }
-    FX_INT32 numberOfCodewords = codewords.GetAt(0);
-    if (numberOfCodewords > codewords.GetSize()) {
-        e = BCExceptionFormatInstance;
-        return;
-    }
-    if (numberOfCodewords == 0) {
-        if (numECCodewords < codewords.GetSize()) {
-            codewords[0] = codewords.GetSize() - numECCodewords;
-        } else {
-            e = BCExceptionFormatInstance;
-            return;
-        }
-    }
-}
-CFX_Int32Array* CBC_PDF417ScanningDecoder::getBitCountForCodeword(FX_INT32 codeword)
-{
-    CFX_Int32Array* result = FX_NEW CFX_Int32Array;
-    result->SetSize(8);
-    FX_INT32 previousValue = 0;
-    FX_INT32 i = result->GetSize() - 1;
-    while (TRUE) {
-        if ((codeword & 0x1) != previousValue) {
-            previousValue = codeword & 0x1;
-            i--;
-            if (i < 0) {
-                break;
-            }
-        }
-        result->SetAt(i, result->GetAt(i) + 1);
-        codeword >>= 1;
-    }
-    return result;
-}
-FX_INT32 CBC_PDF417ScanningDecoder::getCodewordBucketNumber(FX_INT32 codeword)
-{
-    CFX_Int32Array* array = getBitCountForCodeword(codeword);
-    FX_INT32 result = getCodewordBucketNumber(*array);
-    delete array;
-    return result;
-}
-FX_INT32 CBC_PDF417ScanningDecoder::getCodewordBucketNumber(CFX_Int32Array& moduleBitCount)
-{
-    return (moduleBitCount.GetAt(0) - moduleBitCount.GetAt(2) + moduleBitCount.GetAt(4) - moduleBitCount.GetAt(6) + 9) % 9;
-}