Move xfa/src up to xfa/.

This CL moves the xfa/src files up to the xfa/ directory and fixes the includes,
include guards, and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1803723002 .

1 files changed, 219 insertions, 0 deletions

diff --git a/xfa/fxbarcode/oned/BC_OneDimReader.cpp b/xfa/fxbarcode/oned/BC_OneDimReader.cpp
new file mode 100644
index 0000000000..5187c34af9
--- /dev/null
+++ b/xfa/fxbarcode/oned/BC_OneDimReader.cpp
@@ -0,0 +1,219 @@
+// 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 = NULL;
+  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, NULL);
+    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, NULL);
+      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, NULL);
+  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, NULL);
+  return NULL;
+}
+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;
+  } else {
+    e = BCExceptionNotFound;
+    return 0;
+  }
+  return 0;
+}