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, 175 insertions, 0 deletions

diff --git a/xfa/fxbarcode/oned/BC_OneDReader.cpp b/xfa/fxbarcode/oned/BC_OneDReader.cpp
new file mode 100644
index 0000000000..c66ec0bebd
--- /dev/null
+++ b/xfa/fxbarcode/oned/BC_OneDReader.cpp
@@ -0,0 +1,175 @@
+// 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 <memory>
+
+#include "xfa/fxbarcode/BC_BinaryBitmap.h"
+#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"
+
+CBC_OneDReader::CBC_OneDReader() {}
+CBC_OneDReader::~CBC_OneDReader() {}
+CFX_ByteString CBC_OneDReader::Decode(CBC_BinaryBitmap* image, int32_t& e) {
+  CFX_ByteString strtemp = Decode(image, 0, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, "");
+  return strtemp;
+}
+CFX_ByteString CBC_OneDReader::Decode(CBC_BinaryBitmap* image,
+                                      int32_t hints,
+                                      int32_t& e) {
+  CFX_ByteString strtemp = DeDecode(image, hints, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, "");
+  return strtemp;
+}
+CFX_ByteString CBC_OneDReader::DeDecode(CBC_BinaryBitmap* image,
+                                        int32_t hints,
+                                        int32_t& e) {
+  int32_t height = image->GetHeight();
+  int32_t middle = height >> 1;
+  FX_BOOL tryHarder = FALSE;
+  int32_t rowStep = std::max(1, height >> (tryHarder ? 8 : 5));
+  int32_t maxLines;
+  if (tryHarder) {
+    maxLines = height;
+  } else {
+    maxLines = 15;
+  }
+  for (int32_t x = 0; x < maxLines; x++) {
+    int32_t rowStepsAboveOrBelow = (x + 1) >> 1;
+    const bool isAbove = (x & 0x01) == 0;
+    int32_t rowNumber =
+        middle +
+        rowStep * (isAbove ? rowStepsAboveOrBelow : -rowStepsAboveOrBelow);
+    if (rowNumber < 0 || rowNumber >= height) {
+      break;
+    }
+    std::unique_ptr<CBC_CommonBitArray> row(
+        image->GetBlackRow(rowNumber, nullptr, e));
+    if (e != BCExceptionNO) {
+      e = BCExceptionNO;
+      continue;
+    }
+    for (int32_t attempt = 0; attempt < 2; attempt++) {
+      if (attempt == 1) {
+        row->Reverse();
+      }
+      CFX_ByteString result = DecodeRow(rowNumber, row.get(), hints, e);
+      if (e != BCExceptionNO) {
+        e = BCExceptionNO;
+        continue;
+      }
+      return result;
+    }
+  }
+  e = BCExceptionNotFound;
+  return "";
+}
+void CBC_OneDReader::RecordPattern(CBC_CommonBitArray* row,
+                                   int32_t start,
+                                   CFX_Int32Array* counters,
+                                   int32_t& e) {
+  int32_t numCounters = counters->GetSize();
+  for (int32_t i = 0; i < numCounters; i++) {
+    (*counters)[i] = 0;
+  }
+  int32_t end = row->GetSize();
+  if (start >= end) {
+    e = BCExceptionNotFound;
+    return;
+  }
+  FX_BOOL isWhite = !row->Get(start);
+  int32_t counterPosition = 0;
+  int32_t j = start;
+  while (j < end) {
+    FX_BOOL pixel = row->Get(j);
+    if (pixel ^ isWhite) {
+      (*counters)[counterPosition]++;
+    } else {
+      counterPosition++;
+      if (counterPosition == numCounters) {
+        break;
+      } else {
+        (*counters)[counterPosition] = 1;
+        isWhite = !isWhite;
+      }
+    }
+    j++;
+  }
+  if (!(counterPosition == numCounters ||
+        (counterPosition == numCounters - 1 && j == end))) {
+    e = BCExceptionNotFound;
+    return;
+  }
+}
+void CBC_OneDReader::RecordPatternInReverse(CBC_CommonBitArray* row,
+                                            int32_t start,
+                                            CFX_Int32Array* counters,
+                                            int32_t& e) {
+  int32_t numTransitionsLeft = counters->GetSize();
+  FX_BOOL last = row->Get(start);
+  while (start > 0 && numTransitionsLeft >= 0) {
+    if (row->Get(--start) != last) {
+      numTransitionsLeft--;
+      last = !last;
+    }
+  }
+  if (numTransitionsLeft >= 0) {
+    e = BCExceptionNotFound;
+    return;
+  }
+  RecordPattern(row, start + 1, counters, e);
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+}
+int32_t CBC_OneDReader::PatternMatchVariance(CFX_Int32Array* counters,
+                                             const int32_t* pattern,
+                                             int32_t maxIndividualVariance) {
+  int32_t numCounters = counters->GetSize();
+  int32_t total = 0;
+  int32_t patternLength = 0;
+  for (int32_t i = 0; i < numCounters; i++) {
+    total += (*counters)[i];
+    patternLength += pattern[i];
+  }
+  if (total < patternLength) {
+#undef max
+    return FXSYS_IntMax;
+  }
+  int32_t unitBarWidth = (total << INTEGER_MATH_SHIFT) / patternLength;
+  maxIndividualVariance =
+      (maxIndividualVariance * unitBarWidth) >> INTEGER_MATH_SHIFT;
+  int32_t totalVariance = 0;
+  for (int32_t x = 0; x < numCounters; x++) {
+    int32_t counter = (*counters)[x] << INTEGER_MATH_SHIFT;
+    int32_t scaledPattern = pattern[x] * unitBarWidth;
+    int32_t variance = counter > scaledPattern ? counter - scaledPattern
+                                               : scaledPattern - counter;
+    if (variance > maxIndividualVariance) {
+#undef max
+      return FXSYS_IntMax;
+    }
+    totalVariance += variance;
+  }
+  return totalVariance / total;
+}