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-rw-r--r--xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp351
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diff --git a/xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp b/xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp
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--- a/xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp
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-// 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 2008 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 <algorithm>
-
-#include "xfa/src/fxbarcode/BC_Reader.h"
-#include "xfa/src/fxbarcode/common/BC_CommonBitArray.h"
-#include "xfa/src/fxbarcode/oned/BC_OneDReader.h"
-#include "xfa/src/fxbarcode/oned/BC_OnedCode128Reader.h"
-#include "xfa/src/fxbarcode/utils.h"
-
-const int32_t CBC_OnedCode128Reader::CODE_PATTERNS[107][7] = {
- {2, 1, 2, 2, 2, 2, 0}, {2, 2, 2, 1, 2, 2, 0}, {2, 2, 2, 2, 2, 1, 0},
- {1, 2, 1, 2, 2, 3, 0}, {1, 2, 1, 3, 2, 2, 0}, {1, 3, 1, 2, 2, 2, 0},
- {1, 2, 2, 2, 1, 3, 0}, {1, 2, 2, 3, 1, 2, 0}, {1, 3, 2, 2, 1, 2, 0},
- {2, 2, 1, 2, 1, 3, 0}, {2, 2, 1, 3, 1, 2, 0}, {2, 3, 1, 2, 1, 2, 0},
- {1, 1, 2, 2, 3, 2, 0}, {1, 2, 2, 1, 3, 2, 0}, {1, 2, 2, 2, 3, 1, 0},
- {1, 1, 3, 2, 2, 2, 0}, {1, 2, 3, 1, 2, 2, 0}, {1, 2, 3, 2, 2, 1, 0},
- {2, 2, 3, 2, 1, 1, 0}, {2, 2, 1, 1, 3, 2, 0}, {2, 2, 1, 2, 3, 1, 0},
- {2, 1, 3, 2, 1, 2, 0}, {2, 2, 3, 1, 1, 2, 0}, {3, 1, 2, 1, 3, 1, 0},
- {3, 1, 1, 2, 2, 2, 0}, {3, 2, 1, 1, 2, 2, 0}, {3, 2, 1, 2, 2, 1, 0},
- {3, 1, 2, 2, 1, 2, 0}, {3, 2, 2, 1, 1, 2, 0}, {3, 2, 2, 2, 1, 1, 0},
- {2, 1, 2, 1, 2, 3, 0}, {2, 1, 2, 3, 2, 1, 0}, {2, 3, 2, 1, 2, 1, 0},
- {1, 1, 1, 3, 2, 3, 0}, {1, 3, 1, 1, 2, 3, 0}, {1, 3, 1, 3, 2, 1, 0},
- {1, 1, 2, 3, 1, 3, 0}, {1, 3, 2, 1, 1, 3, 0}, {1, 3, 2, 3, 1, 1, 0},
- {2, 1, 1, 3, 1, 3, 0}, {2, 3, 1, 1, 1, 3, 0}, {2, 3, 1, 3, 1, 1, 0},
- {1, 1, 2, 1, 3, 3, 0}, {1, 1, 2, 3, 3, 1, 0}, {1, 3, 2, 1, 3, 1, 0},
- {1, 1, 3, 1, 2, 3, 0}, {1, 1, 3, 3, 2, 1, 0}, {1, 3, 3, 1, 2, 1, 0},
- {3, 1, 3, 1, 2, 1, 0}, {2, 1, 1, 3, 3, 1, 0}, {2, 3, 1, 1, 3, 1, 0},
- {2, 1, 3, 1, 1, 3, 0}, {2, 1, 3, 3, 1, 1, 0}, {2, 1, 3, 1, 3, 1, 0},
- {3, 1, 1, 1, 2, 3, 0}, {3, 1, 1, 3, 2, 1, 0}, {3, 3, 1, 1, 2, 1, 0},
- {3, 1, 2, 1, 1, 3, 0}, {3, 1, 2, 3, 1, 1, 0}, {3, 3, 2, 1, 1, 1, 0},
- {3, 1, 4, 1, 1, 1, 0}, {2, 2, 1, 4, 1, 1, 0}, {4, 3, 1, 1, 1, 1, 0},
- {1, 1, 1, 2, 2, 4, 0}, {1, 1, 1, 4, 2, 2, 0}, {1, 2, 1, 1, 2, 4, 0},
- {1, 2, 1, 4, 2, 1, 0}, {1, 4, 1, 1, 2, 2, 0}, {1, 4, 1, 2, 2, 1, 0},
- {1, 1, 2, 2, 1, 4, 0}, {1, 1, 2, 4, 1, 2, 0}, {1, 2, 2, 1, 1, 4, 0},
- {1, 2, 2, 4, 1, 1, 0}, {1, 4, 2, 1, 1, 2, 0}, {1, 4, 2, 2, 1, 1, 0},
- {2, 4, 1, 2, 1, 1, 0}, {2, 2, 1, 1, 1, 4, 0}, {4, 1, 3, 1, 1, 1, 0},
- {2, 4, 1, 1, 1, 2, 0}, {1, 3, 4, 1, 1, 1, 0}, {1, 1, 1, 2, 4, 2, 0},
- {1, 2, 1, 1, 4, 2, 0}, {1, 2, 1, 2, 4, 1, 0}, {1, 1, 4, 2, 1, 2, 0},
- {1, 2, 4, 1, 1, 2, 0}, {1, 2, 4, 2, 1, 1, 0}, {4, 1, 1, 2, 1, 2, 0},
- {4, 2, 1, 1, 1, 2, 0}, {4, 2, 1, 2, 1, 1, 0}, {2, 1, 2, 1, 4, 1, 0},
- {2, 1, 4, 1, 2, 1, 0}, {4, 1, 2, 1, 2, 1, 0}, {1, 1, 1, 1, 4, 3, 0},
- {1, 1, 1, 3, 4, 1, 0}, {1, 3, 1, 1, 4, 1, 0}, {1, 1, 4, 1, 1, 3, 0},
- {1, 1, 4, 3, 1, 1, 0}, {4, 1, 1, 1, 1, 3, 0}, {4, 1, 1, 3, 1, 1, 0},
- {1, 1, 3, 1, 4, 1, 0}, {1, 1, 4, 1, 3, 1, 0}, {3, 1, 1, 1, 4, 1, 0},
- {4, 1, 1, 1, 3, 1, 0}, {2, 1, 1, 4, 1, 2, 0}, {2, 1, 1, 2, 1, 4, 0},
- {2, 1, 1, 2, 3, 2, 0}, {2, 3, 3, 1, 1, 1, 2}};
-
-CBC_OnedCode128Reader::CBC_OnedCode128Reader() {}
-CBC_OnedCode128Reader::~CBC_OnedCode128Reader() {}
-CFX_Int32Array* CBC_OnedCode128Reader::FindStartPattern(CBC_CommonBitArray* row,
- int32_t& e) {
- int32_t width = row->GetSize();
- int32_t rowOffset = 0;
- while (rowOffset < width) {
- if (row->Get(rowOffset)) {
- break;
- }
- rowOffset++;
- }
- int32_t counterPosition = 0;
- CFX_Int32Array counters;
- counters.SetSize(6);
- int32_t patternStart = rowOffset;
- FX_BOOL isWhite = FALSE;
- int32_t patternLength = counters.GetSize();
- for (int32_t i = rowOffset; i < width; i++) {
- FX_BOOL pixel = row->Get(i);
- if (pixel ^ isWhite) {
- counters[counterPosition]++;
- } else {
- if (counterPosition == patternLength - 1) {
- int32_t bestVariance = MAX_AVG_VARIANCE;
- int32_t bestMatch = -1;
- for (int32_t startCode = CODE_START_A; startCode <= CODE_START_C;
- startCode++) {
- int32_t variance = PatternMatchVariance(
- &counters, &CODE_PATTERNS[startCode][0], MAX_INDIVIDUAL_VARIANCE);
- if (variance < bestVariance) {
- bestVariance = variance;
- bestMatch = startCode;
- }
- }
- if (bestMatch >= 0) {
- FX_BOOL btemp2 =
- row->IsRange(std::max(0, patternStart - (i - patternStart) / 2),
- patternStart, FALSE, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- if (btemp2) {
- CFX_Int32Array* result = new CFX_Int32Array;
- result->SetSize(3);
- (*result)[0] = patternStart;
- (*result)[1] = i;
- (*result)[2] = bestMatch;
- return result;
- }
- }
- patternStart += counters[0] + counters[1];
- for (int32_t y = 2; y < patternLength; y++) {
- counters[y - 2] = counters[y];
- }
- counters[patternLength - 2] = 0;
- counters[patternLength - 1] = 0;
- counterPosition--;
- } else {
- counterPosition++;
- }
- counters[counterPosition] = 1;
- isWhite = !isWhite;
- }
- }
- e = BCExceptionNotFound;
- return NULL;
-}
-int32_t CBC_OnedCode128Reader::DecodeCode(CBC_CommonBitArray* row,
- CFX_Int32Array* counters,
- int32_t rowOffset,
- int32_t& e) {
- RecordPattern(row, rowOffset, counters, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, 0);
- int32_t bestVariance = MAX_AVG_VARIANCE;
- int32_t bestMatch = -1;
- for (int32_t d = 0; d < 107; d++) {
- int32_t variance = PatternMatchVariance(counters, &CODE_PATTERNS[d][0],
- MAX_INDIVIDUAL_VARIANCE);
- if (variance < bestVariance) {
- bestVariance = variance;
- bestMatch = d;
- }
- }
- if (bestMatch >= 0) {
- return bestMatch;
- } else {
- e = BCExceptionNotFound;
- return 0;
- }
- return 0;
-}
-CFX_ByteString CBC_OnedCode128Reader::DecodeRow(int32_t rowNumber,
- CBC_CommonBitArray* row,
- int32_t hints,
- int32_t& e) {
- CFX_Int32Array* startPatternInfo = FindStartPattern(row, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, "");
- int32_t startCode = (*startPatternInfo)[2];
- int32_t codeSet;
- switch (startCode) {
- case 103:
- codeSet = CODE_CODE_A;
- break;
- case 104:
- codeSet = CODE_CODE_B;
- break;
- case 105:
- codeSet = CODE_CODE_C;
- break;
- default:
- if (startPatternInfo) {
- startPatternInfo->RemoveAll();
- delete startPatternInfo;
- startPatternInfo = NULL;
- }
- e = BCExceptionFormatException;
- return "";
- }
- FX_BOOL done = FALSE;
- FX_BOOL isNextShifted = FALSE;
- CFX_ByteString result;
- int32_t lastStart = (*startPatternInfo)[0];
- int32_t nextStart = (*startPatternInfo)[1];
- if (startPatternInfo) {
- startPatternInfo->RemoveAll();
- delete startPatternInfo;
- startPatternInfo = NULL;
- }
- CFX_Int32Array counters;
- counters.SetSize(6);
- int32_t lastCode = 0;
- int32_t code = 0;
- int32_t checksumTotal = startCode;
- int32_t multiplier = 0;
- FX_BOOL lastCharacterWasPrintable = TRUE;
- while (!done) {
- FX_BOOL unshift = isNextShifted;
- isNextShifted = FALSE;
- lastCode = code;
- code = DecodeCode(row, &counters, nextStart, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, "");
- if (code != CODE_STOP) {
- lastCharacterWasPrintable = TRUE;
- }
- if (code != CODE_STOP) {
- multiplier++;
- checksumTotal += multiplier * code;
- }
- lastStart = nextStart;
- for (int32_t i = 0; i < counters.GetSize(); i++) {
- nextStart += counters[i];
- }
- switch (code) {
- case 103:
- case 104:
- case 105:
- e = BCExceptionFormatException;
- return "";
- }
- switch (codeSet) {
- case 101:
- if (code < 64) {
- result += (FX_CHAR)(' ' + code);
- } else if (code < 96) {
- result += (FX_CHAR)(code - 64);
- } else {
- if (code != CODE_STOP) {
- lastCharacterWasPrintable = FALSE;
- }
- switch (code) {
- case 102:
- case 97:
- case 96:
- case 101:
- break;
- case 98:
- isNextShifted = TRUE;
- codeSet = CODE_CODE_B;
- break;
- case 100:
- codeSet = CODE_CODE_B;
- break;
- case 99:
- codeSet = CODE_CODE_C;
- break;
- case 106:
- done = TRUE;
- break;
- }
- }
- break;
- case 100:
- if (code < 96) {
- result += (FX_CHAR)(' ' + code);
- } else {
- if (code != CODE_STOP) {
- lastCharacterWasPrintable = FALSE;
- }
- switch (code) {
- case 102:
- case 97:
- case 96:
- case 100:
- break;
- case 98:
- isNextShifted = TRUE;
- codeSet = CODE_CODE_A;
- break;
- case 101:
- codeSet = CODE_CODE_A;
- break;
- case 99:
- codeSet = CODE_CODE_C;
- break;
- case 106:
- done = TRUE;
- break;
- }
- }
- break;
- case 99:
- if (code < 100) {
- if (code < 10) {
- result += '0';
- }
- FX_CHAR temp[128];
- // TODO(dsinclair): Should this be snprintf?
- sprintf(temp, "%d", code);
- result += temp;
- } else {
- if (code != CODE_STOP) {
- lastCharacterWasPrintable = FALSE;
- }
- switch (code) {
- case 102:
- break;
- case 101:
- codeSet = CODE_CODE_A;
- break;
- case 100:
- codeSet = CODE_CODE_B;
- break;
- case 106:
- done = TRUE;
- break;
- }
- }
- break;
- }
- if (unshift) {
- codeSet = codeSet == CODE_CODE_A ? CODE_CODE_B : CODE_CODE_A;
- }
- }
- int32_t width = row->GetSize();
- while (nextStart < width && row->Get(nextStart)) {
- nextStart++;
- }
- FX_BOOL boolT1 = row->IsRange(
- nextStart, std::min(width, nextStart + (nextStart - lastStart) / 2),
- FALSE, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, "");
- if (!boolT1) {
- e = BCExceptionNotFound;
- return "";
- }
- checksumTotal -= multiplier * lastCode;
- if (checksumTotal % 103 != lastCode) {
- e = BCExceptionChecksumException;
- return "";
- }
- int32_t resultLength = result.GetLength();
- if (resultLength > 0 && lastCharacterWasPrintable) {
- if (codeSet == CODE_CODE_C) {
- result = result.Mid(0, result.GetLength() - 2);
- } else {
- result = result.Mid(0, result.GetLength() - 1);
- }
- }
- if (result.GetLength() == 0) {
- e = BCExceptionFormatException;
- return "";
- }
- return result;
-}