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, 352 insertions, 0 deletions

diff --git a/xfa/fxbarcode/pdf417/BC_PDF417Detector.cpp b/xfa/fxbarcode/pdf417/BC_PDF417Detector.cpp
new file mode 100644
index 0000000000..cfd52e56dc
--- /dev/null
+++ b/xfa/fxbarcode/pdf417/BC_PDF417Detector.cpp
@@ -0,0 +1,352 @@
+// 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 2009 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/BC_BinaryBitmap.h"
+#include "xfa/fxbarcode/BC_ResultPoint.h"
+#include "xfa/fxbarcode/common/BC_CommonBitArray.h"
+#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
+#include "xfa/fxbarcode/pdf417/BC_PDF417Detector.h"
+#include "xfa/fxbarcode/pdf417/BC_PDF417DetectorResult.h"
+#include "xfa/fxbarcode/utils.h"
+
+#define INTEGER_MAX 2147483647
+
+int32_t CBC_Detector::INDEXES_START_PATTERN[] = {0, 4, 1, 5};
+int32_t CBC_Detector::INDEXES_STOP_PATTERN[] = {6, 2, 7, 3};
+int32_t CBC_Detector::INTEGER_MATH_SHIFT = 8;
+int32_t CBC_Detector::PATTERN_MATCH_RESULT_SCALE_FACTOR = 1
+                                                          << INTEGER_MATH_SHIFT;
+int32_t CBC_Detector::MAX_AVG_VARIANCE =
+    (int32_t)(PATTERN_MATCH_RESULT_SCALE_FACTOR * 0.42f);
+int32_t CBC_Detector::MAX_INDIVIDUAL_VARIANCE =
+    (int32_t)(PATTERN_MATCH_RESULT_SCALE_FACTOR * 0.8f);
+int32_t CBC_Detector::START_PATTERN[] = {8, 1, 1, 1, 1, 1, 1, 3};
+int32_t CBC_Detector::STOP_PATTERN[] = {7, 1, 1, 3, 1, 1, 1, 2, 1};
+int32_t CBC_Detector::MAX_PIXEL_DRIFT = 3;
+int32_t CBC_Detector::MAX_PATTERN_DRIFT = 5;
+int32_t CBC_Detector::SKIPPED_ROW_COUNT_MAX = 25;
+int32_t CBC_Detector::ROW_STEP = 5;
+int32_t CBC_Detector::BARCODE_MIN_HEIGHT = 10;
+
+CBC_Detector::CBC_Detector() {}
+CBC_Detector::~CBC_Detector() {}
+CBC_PDF417DetectorResult* CBC_Detector::detect(CBC_BinaryBitmap* image,
+                                               int32_t hints,
+                                               FX_BOOL multiple,
+                                               int32_t& e) {
+  CBC_CommonBitMatrix* bitMatrix = image->GetBlackMatrix(e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CFX_PtrArray* barcodeCoordinates = detect(multiple, bitMatrix);
+  if (barcodeCoordinates->GetSize() == 0) {
+    rotate180(bitMatrix);
+    barcodeCoordinates = detect(multiple, bitMatrix);
+  }
+  if (barcodeCoordinates->GetSize() == 0) {
+    e = BCExceptionUnSupportedBarcode;
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  CBC_PDF417DetectorResult* detectorResult =
+      new CBC_PDF417DetectorResult(bitMatrix, barcodeCoordinates);
+  return detectorResult;
+}
+void CBC_Detector::rotate180(CBC_CommonBitMatrix* bitMatrix) {
+  int32_t width = bitMatrix->GetWidth();
+  int32_t height = bitMatrix->GetHeight();
+  CBC_CommonBitArray* firstRowBitArray = new CBC_CommonBitArray(width);
+  CBC_CommonBitArray* secondRowBitArray = new CBC_CommonBitArray(width);
+  CBC_CommonBitArray* tmpBitArray = new CBC_CommonBitArray(width);
+  for (int32_t y = 0; y<(height + 1)>> 1; y++) {
+    CBC_CommonBitArray* temp =
+        bitMatrix->GetRow(height - 1 - y, secondRowBitArray);
+    CBC_CommonBitArray* tempfirstRow = firstRowBitArray;
+    firstRowBitArray = bitMatrix->GetRow(y, tempfirstRow);
+    delete tempfirstRow;
+    CBC_CommonBitArray* row = mirror(temp, tmpBitArray);
+    delete temp;
+    bitMatrix->SetRow(y, row);
+    delete row;
+    CBC_CommonBitArray* rowfirstRow = mirror(firstRowBitArray, tmpBitArray);
+    bitMatrix->SetRow(height - 1 - y, rowfirstRow);
+    delete rowfirstRow;
+  }
+  delete tmpBitArray;
+  delete firstRowBitArray;
+  delete secondRowBitArray;
+}
+CBC_CommonBitArray* CBC_Detector::mirror(CBC_CommonBitArray* input,
+                                         CBC_CommonBitArray* result) {
+  CBC_CommonBitArray* array = new CBC_CommonBitArray(result->GetSize());
+  array->Clear();
+  int32_t size = input->GetSize();
+  for (int32_t i = 0; i < size; i++) {
+    if (input->Get(i)) {
+      array->Set(size - 1 - i);
+    }
+  }
+  return array;
+}
+CFX_PtrArray* CBC_Detector::detect(FX_BOOL multiple,
+                                   CBC_CommonBitMatrix* bitMatrix) {
+  CFX_PtrArray* barcodeCoordinates = new CFX_PtrArray;
+  int32_t row = 0;
+  int32_t column = 0;
+  FX_BOOL foundBarcodeInRow = FALSE;
+  while (row < bitMatrix->GetHeight()) {
+    CFX_PtrArray* vertices = findVertices(bitMatrix, row, column);
+    if (vertices->GetAt(0) == NULL && vertices->GetAt(3) == NULL) {
+      if (!foundBarcodeInRow) {
+        if (vertices) {
+          delete (vertices);
+        }
+        break;
+      }
+      foundBarcodeInRow = FALSE;
+      column = 0;
+      for (int32_t i = 0; i < barcodeCoordinates->GetSize(); i++) {
+        CFX_PtrArray* barcodeCoordinate =
+            (CFX_PtrArray*)barcodeCoordinates->GetAt(i);
+        if (barcodeCoordinate->GetAt(1)) {
+          row = row > ((CBC_ResultPoint*)barcodeCoordinate->GetAt(1))->GetY();
+        }
+        if (barcodeCoordinate->GetAt(3)) {
+          row = row > ((CBC_ResultPoint*)barcodeCoordinate->GetAt(3))->GetY();
+        }
+      }
+      row += ROW_STEP;
+      if (vertices) {
+        delete (vertices);
+      }
+      continue;
+    }
+    foundBarcodeInRow = TRUE;
+    barcodeCoordinates->Add(vertices);
+    if (!multiple) {
+      break;
+    }
+    if (vertices->GetAt(2)) {
+      column = (int32_t)((CBC_ResultPoint*)vertices->GetAt(2))->GetX();
+      row = (int32_t)((CBC_ResultPoint*)vertices->GetAt(2))->GetY();
+    } else {
+      column = (int32_t)((CBC_ResultPoint*)vertices->GetAt(4))->GetX();
+      row = (int32_t)((CBC_ResultPoint*)vertices->GetAt(4))->GetY();
+    }
+  }
+  return barcodeCoordinates;
+}
+CFX_PtrArray* CBC_Detector::findVertices(CBC_CommonBitMatrix* matrix,
+                                         int32_t startRow,
+                                         int32_t startColumn) {
+  int32_t height = matrix->GetHeight();
+  int32_t width = matrix->GetWidth();
+  CFX_PtrArray* result = new CFX_PtrArray;
+  result->SetSize(8);
+  CFX_PtrArray* startptr = findRowsWithPattern(
+      matrix, height, width, startRow, startColumn, START_PATTERN,
+      sizeof(START_PATTERN) / sizeof(START_PATTERN[0]));
+  copyToResult(
+      result, startptr, INDEXES_START_PATTERN,
+      sizeof(INDEXES_START_PATTERN) / sizeof(INDEXES_START_PATTERN[0]));
+  startptr->RemoveAll();
+  delete startptr;
+  if (result->GetAt(4)) {
+    startColumn = (int32_t)((CBC_ResultPoint*)result->GetAt(4))->GetX();
+    startRow = (int32_t)((CBC_ResultPoint*)result->GetAt(4))->GetY();
+  }
+  CFX_PtrArray* stopptr = findRowsWithPattern(
+      matrix, height, width, startRow, startColumn, STOP_PATTERN,
+      sizeof(STOP_PATTERN) / sizeof(STOP_PATTERN[0]));
+  copyToResult(result, stopptr, INDEXES_STOP_PATTERN,
+               sizeof(INDEXES_STOP_PATTERN) / sizeof(INDEXES_STOP_PATTERN[0]));
+  stopptr->RemoveAll();
+  delete stopptr;
+  return result;
+}
+void CBC_Detector::copyToResult(CFX_PtrArray* result,
+                                CFX_PtrArray* tmpResult,
+                                int32_t* destinationIndexes,
+                                int32_t destinationLength) {
+  for (int32_t i = 0; i < destinationLength; i++) {
+    result->SetAt(destinationIndexes[i], tmpResult->GetAt(i));
+  }
+}
+CFX_PtrArray* CBC_Detector::findRowsWithPattern(CBC_CommonBitMatrix* matrix,
+                                                int32_t height,
+                                                int32_t width,
+                                                int32_t startRow,
+                                                int32_t startColumn,
+                                                int32_t* pattern,
+                                                int32_t patternLength) {
+  CFX_PtrArray* result = new CFX_PtrArray;
+  result->SetSize(4);
+  FX_BOOL found = FALSE;
+  CFX_Int32Array counters;
+  counters.SetSize(patternLength);
+  for (; startRow < height; startRow += ROW_STEP) {
+    CFX_Int32Array* loc =
+        findGuardPattern(matrix, startColumn, startRow, width, FALSE, pattern,
+                         patternLength, counters);
+    if (loc) {
+      while (startRow > 0) {
+        CFX_Int32Array* previousRowLoc =
+            findGuardPattern(matrix, startColumn, --startRow, width, FALSE,
+                             pattern, patternLength, counters);
+        if (previousRowLoc) {
+          delete loc;
+          loc = previousRowLoc;
+        } else {
+          startRow++;
+          break;
+        }
+      }
+      result->SetAt(
+          0, new CBC_ResultPoint((FX_FLOAT)loc->GetAt(0), (FX_FLOAT)startRow));
+      result->SetAt(
+          1, new CBC_ResultPoint((FX_FLOAT)loc->GetAt(1), (FX_FLOAT)startRow));
+      found = TRUE;
+      delete loc;
+      break;
+    }
+  }
+  int32_t stopRow = startRow + 1;
+  if (found) {
+    int32_t skippedRowCount = 0;
+    CFX_Int32Array previousRowLoc;
+    previousRowLoc.Add((int32_t)((CBC_ResultPoint*)result->GetAt(0))->GetX());
+    previousRowLoc.Add((int32_t)((CBC_ResultPoint*)result->GetAt(1))->GetX());
+    for (; stopRow < height; stopRow++) {
+      CFX_Int32Array* loc =
+          findGuardPattern(matrix, previousRowLoc[0], stopRow, width, FALSE,
+                           pattern, patternLength, counters);
+      if (loc && abs(previousRowLoc[0] - loc->GetAt(0)) < MAX_PATTERN_DRIFT &&
+          abs(previousRowLoc[1] - loc->GetAt(1)) < MAX_PATTERN_DRIFT) {
+        previousRowLoc.Copy(*loc);
+        skippedRowCount = 0;
+      } else {
+        if (skippedRowCount > SKIPPED_ROW_COUNT_MAX) {
+          delete loc;
+          break;
+        } else {
+          skippedRowCount++;
+        }
+      }
+      delete loc;
+    }
+    stopRow -= skippedRowCount + 1;
+    result->SetAt(2, new CBC_ResultPoint((FX_FLOAT)previousRowLoc.GetAt(0),
+                                         (FX_FLOAT)stopRow));
+    result->SetAt(3, new CBC_ResultPoint((FX_FLOAT)previousRowLoc.GetAt(1),
+                                         (FX_FLOAT)stopRow));
+  }
+  if (stopRow - startRow < BARCODE_MIN_HEIGHT) {
+    for (int32_t i = 0; i < result->GetSize(); i++) {
+      result->SetAt(i, NULL);
+    }
+  }
+  return result;
+}
+CFX_Int32Array* CBC_Detector::findGuardPattern(CBC_CommonBitMatrix* matrix,
+                                               int32_t column,
+                                               int32_t row,
+                                               int32_t width,
+                                               FX_BOOL whiteFirst,
+                                               int32_t* pattern,
+                                               int32_t patternLength,
+                                               CFX_Int32Array& counters) {
+  for (int32_t i = 0; i < counters.GetSize(); i++) {
+    counters.SetAt(i, 0);
+  }
+  FX_BOOL isWhite = whiteFirst;
+  int32_t patternStart = column;
+  int32_t pixelDrift = 0;
+  CFX_Int32Array* intarray = new CFX_Int32Array;
+  while (matrix->Get(patternStart, row) && patternStart > 0 &&
+         pixelDrift++ < MAX_PIXEL_DRIFT) {
+    patternStart--;
+  }
+  int32_t x = patternStart;
+  int32_t counterPosition = 0;
+  for (; x < width; x++) {
+    FX_BOOL pixel = matrix->Get(x, row);
+    if (pixel ^ isWhite) {
+      counters[counterPosition]++;
+    } else {
+      if (counterPosition == patternLength - 1) {
+        if (patternMatchVariance(counters, pattern, MAX_INDIVIDUAL_VARIANCE) <
+            MAX_AVG_VARIANCE) {
+          intarray->Add(patternStart);
+          intarray->Add(x);
+          return intarray;
+        }
+        patternStart += counters[0] + counters[1];
+        for (int32_t l = 2, k = 0; l < patternLength; l++, k++) {
+          counters.SetAt(k, counters.GetAt(l));
+        }
+        counters.SetAt(patternLength - 2, 0);
+        counters.SetAt(patternLength - 1, 0);
+        counterPosition--;
+      } else {
+        counterPosition++;
+      }
+      counters[counterPosition] = 1;
+      isWhite = !isWhite;
+    }
+  }
+  if (counterPosition == patternLength - 1) {
+    if (patternMatchVariance(counters, pattern, MAX_INDIVIDUAL_VARIANCE) <
+        MAX_AVG_VARIANCE) {
+      intarray->Add(patternStart);
+      intarray->Add(x - 1);
+      return intarray;
+    }
+  }
+  delete intarray;
+  return NULL;
+}
+int32_t CBC_Detector::patternMatchVariance(CFX_Int32Array& counters,
+                                           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) {
+    return INTEGER_MAX;
+  }
+  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) {
+      return INTEGER_MAX;
+    }
+    totalVariance += variance;
+  }
+  return totalVariance / total;
+}