Remove barcode reading code.

We never read barcodes, we only write them. Remove code related to barcode
reading.

Review-Url: https://codereview.chromium.org/2071633002

1 files changed, 0 insertions, 217 deletions

diff --git a/xfa/fxbarcode/oned/BC_OneDimReader.cpp b/xfa/fxbarcode/oned/BC_OneDimReader.cpp
deleted file mode 100644
index e413adb6a4..0000000000
--- a/xfa/fxbarcode/oned/BC_OneDimReader.cpp
+++ /dev/null
@@ -1,217 +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 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 "xfa/fxbarcode/oned/BC_OneDimReader.h"
-
-#include <memory>
-
-#include "xfa/fxbarcode/BC_Reader.h"
-#include "xfa/fxbarcode/common/BC_CommonBitArray.h"
-#include "xfa/fxbarcode/oned/BC_OneDReader.h"
-#include "xfa/fxbarcode/utils.h"
-
-const int32_t CBC_OneDimReader::START_END_PATTERN[3] = {1, 1, 1};
-const int32_t CBC_OneDimReader::MIDDLE_PATTERN[5] = {1, 1, 1, 1, 1};
-const int32_t CBC_OneDimReader::L_PATTERNS[10][4] = {
-    {3, 2, 1, 1}, {2, 2, 2, 1}, {2, 1, 2, 2}, {1, 4, 1, 1}, {1, 1, 3, 2},
-    {1, 2, 3, 1}, {1, 1, 1, 4}, {1, 3, 1, 2}, {1, 2, 1, 3}, {3, 1, 1, 2}};
-const int32_t CBC_OneDimReader::L_AND_G_PATTERNS[20][4] = {
-    {3, 2, 1, 1}, {2, 2, 2, 1}, {2, 1, 2, 2}, {1, 4, 1, 1}, {1, 1, 3, 2},
-    {1, 2, 3, 1}, {1, 1, 1, 4}, {1, 3, 1, 2}, {1, 2, 1, 3}, {3, 1, 1, 2},
-    {1, 1, 2, 3}, {1, 2, 2, 2}, {2, 2, 1, 2}, {1, 1, 4, 1}, {2, 3, 1, 1},
-    {1, 3, 2, 1}, {4, 1, 1, 1}, {2, 1, 3, 1}, {3, 1, 2, 1}, {2, 1, 1, 3}};
-
-CBC_OneDimReader::CBC_OneDimReader() {}
-CBC_OneDimReader::~CBC_OneDimReader() {}
-CFX_Int32Array* CBC_OneDimReader::FindStartGuardPattern(CBC_CommonBitArray* row,
-                                                        int32_t& e) {
-  FX_BOOL foundStart = FALSE;
-  CFX_Int32Array* startRange = nullptr;
-  CFX_Int32Array startEndPattern;
-  startEndPattern.SetSize(3);
-  startEndPattern[0] = START_END_PATTERN[0];
-  startEndPattern[1] = START_END_PATTERN[1];
-  startEndPattern[2] = START_END_PATTERN[2];
-  int32_t nextStart = 0;
-  while (!foundStart) {
-    delete startRange;
-    startRange = FindGuardPattern(row, nextStart, FALSE, &startEndPattern, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-    int32_t start = (*startRange)[0];
-    nextStart = (*startRange)[1];
-    if (start <= 1) {
-      break;
-    }
-    int32_t quietStart = start - (nextStart - start);
-    if (quietStart >= 0) {
-      FX_BOOL booT = row->IsRange(quietStart, start, FALSE, e);
-      BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-      foundStart = booT;
-    }
-  }
-  return startRange;
-}
-CFX_ByteString CBC_OneDimReader::DecodeRow(int32_t rowNumber,
-                                           CBC_CommonBitArray* row,
-                                           int32_t hints,
-                                           int32_t& e) {
-  std::unique_ptr<CFX_Int32Array> result(FindStartGuardPattern(row, e));
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  CFX_ByteString temp = DecodeRow(rowNumber, row, result.get(), hints, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  return temp;
-}
-CFX_ByteString CBC_OneDimReader::DecodeRow(int32_t rowNumber,
-                                           CBC_CommonBitArray* row,
-                                           CFX_Int32Array* startGuardRange,
-                                           int32_t hints,
-                                           int32_t& e) {
-  CFX_ByteString result;
-  DecodeMiddle(row, startGuardRange, result, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  FX_BOOL b = CheckChecksum(result, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  if (!b) {
-    e = BCExceptionChecksumException;
-    return "";
-  }
-  return result;
-}
-FX_BOOL CBC_OneDimReader::CheckChecksum(CFX_ByteString& s, int32_t& e) {
-  FX_BOOL temp = CheckStandardUPCEANChecksum(s, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, FALSE);
-  return temp;
-}
-FX_BOOL CBC_OneDimReader::CheckStandardUPCEANChecksum(CFX_ByteString& s,
-                                                      int32_t& e) {
-  int32_t length = s.GetLength();
-  if (length == 0) {
-    return FALSE;
-  }
-  int32_t sum = 0;
-  for (int32_t i = length - 2; i >= 0; i -= 2) {
-    int32_t digit = (int32_t)s[i] - (int32_t)'0';
-    if (digit < 0 || digit > 9) {
-      e = BCExceptionFormatException;
-      return FALSE;
-    }
-    sum += digit;
-  }
-  sum *= 3;
-  for (int32_t j = length - 1; j >= 0; j -= 2) {
-    int32_t digit = (int32_t)s[j] - (int32_t)'0';
-    if (digit < 0 || digit > 9) {
-      e = BCExceptionFormatException;
-      return FALSE;
-    }
-    sum += digit;
-  }
-  return sum % 10 == 0;
-}
-CFX_Int32Array* CBC_OneDimReader::DecodeEnd(CBC_CommonBitArray* row,
-                                            int32_t endStart,
-                                            int32_t& e) {
-  CFX_Int32Array startEndPattern;
-  startEndPattern.Add(START_END_PATTERN[0]);
-  startEndPattern.Add(START_END_PATTERN[1]);
-  startEndPattern.Add(START_END_PATTERN[2]);
-  CFX_Int32Array* FindGuard =
-      FindGuardPattern(row, endStart, FALSE, &startEndPattern, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return FindGuard;
-}
-CFX_Int32Array* CBC_OneDimReader::FindGuardPattern(CBC_CommonBitArray* row,
-                                                   int32_t rowOffset,
-                                                   FX_BOOL whiteFirst,
-                                                   CFX_Int32Array* pattern,
-                                                   int32_t& e) {
-  int32_t patternLength = pattern->GetSize();
-  CFX_Int32Array counters;
-  counters.SetSize(patternLength);
-  int32_t width = row->GetSize();
-  FX_BOOL isWhite = FALSE;
-  while (rowOffset < width) {
-    isWhite = !row->Get(rowOffset);
-    if (whiteFirst == isWhite) {
-      break;
-    }
-    rowOffset++;
-  }
-  int32_t counterPosition = 0;
-  int32_t patternStart = rowOffset;
-  for (int32_t x = rowOffset; x < width; x++) {
-    FX_BOOL pixel = row->Get(x);
-    if (pixel ^ isWhite) {
-      counters[counterPosition]++;
-    } else {
-      if (counterPosition == patternLength - 1) {
-        if (PatternMatchVariance(&counters, &(*pattern)[0],
-                                 MAX_INDIVIDUAL_VARIANCE) < MAX_AVG_VARIANCE) {
-          CFX_Int32Array* result = new CFX_Int32Array();
-          result->SetSize(2);
-          (*result)[0] = patternStart;
-          (*result)[1] = x;
-          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;
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return nullptr;
-}
-int32_t CBC_OneDimReader::DecodeDigit(CBC_CommonBitArray* row,
-                                      CFX_Int32Array* counters,
-                                      int32_t rowOffset,
-                                      const int32_t* patterns,
-                                      int32_t patternLength,
-                                      int32_t& e) {
-  RecordPattern(row, rowOffset, counters, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-  int32_t bestVariance = MAX_AVG_VARIANCE;
-  int32_t bestMatch = -1;
-  int32_t max = patternLength;
-  for (int32_t i = 0; i < max; i++) {
-    int32_t variance = PatternMatchVariance(counters, &patterns[i * 4],
-                                            MAX_INDIVIDUAL_VARIANCE);
-    if (variance < bestVariance) {
-      bestVariance = variance;
-      bestMatch = i;
-    }
-  }
-  if (bestMatch >= 0) {
-    return bestMatch;
-  }
-  e = BCExceptionNotFound;
-  return 0;
-}