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, 406 insertions, 0 deletions

diff --git a/xfa/fxbarcode/datamatrix/BC_DataMatrixDetector.cpp b/xfa/fxbarcode/datamatrix/BC_DataMatrixDetector.cpp
new file mode 100644
index 0000000000..fd410097cc
--- /dev/null
+++ b/xfa/fxbarcode/datamatrix/BC_DataMatrixDetector.cpp
@@ -0,0 +1,406 @@
+// 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/datamatrix/BC_DataMatrixDetector.h"
+
+#include <algorithm>
+#include <memory>
+
+#include "xfa/fxbarcode/BC_ResultPoint.h"
+#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
+#include "xfa/fxbarcode/common/BC_WhiteRectangleDetector.h"
+#include "xfa/fxbarcode/qrcode/BC_QRDetectorResult.h"
+#include "xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.h"
+#include "xfa/fxbarcode/qrcode/BC_QRGridSampler.h"
+#include "xfa/fxbarcode/utils.h"
+
+const int32_t CBC_DataMatrixDetector::INTEGERS[5] = {0, 1, 2, 3, 4};
+CBC_DataMatrixDetector::CBC_DataMatrixDetector(CBC_CommonBitMatrix* image)
+    : m_image(image), m_rectangleDetector(NULL) {}
+void CBC_DataMatrixDetector::Init(int32_t& e) {
+  m_rectangleDetector = new CBC_WhiteRectangleDetector(m_image);
+  m_rectangleDetector->Init(e);
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+}
+CBC_DataMatrixDetector::~CBC_DataMatrixDetector() {
+  delete m_rectangleDetector;
+}
+inline FX_BOOL ResultPointsAndTransitionsComparator(void* a, void* b) {
+  return ((CBC_ResultPointsAndTransitions*)b)->GetTransitions() >
+         ((CBC_ResultPointsAndTransitions*)a)->GetTransitions();
+}
+CBC_QRDetectorResult* CBC_DataMatrixDetector::Detect(int32_t& e) {
+  CFX_PtrArray* cornerPoints = m_rectangleDetector->Detect(e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_ResultPoint* pointA = (CBC_ResultPoint*)(*cornerPoints)[0];
+  CBC_ResultPoint* pointB = (CBC_ResultPoint*)(*cornerPoints)[1];
+  CBC_ResultPoint* pointC = (CBC_ResultPoint*)(*cornerPoints)[2];
+  CBC_ResultPoint* pointD = (CBC_ResultPoint*)(*cornerPoints)[3];
+  delete cornerPoints;
+  cornerPoints = NULL;
+  CFX_PtrArray transitions;
+  transitions.Add(TransitionsBetween(pointA, pointB));
+  transitions.Add(TransitionsBetween(pointA, pointC));
+  transitions.Add(TransitionsBetween(pointB, pointD));
+  transitions.Add(TransitionsBetween(pointC, pointD));
+  BC_FX_PtrArray_Sort(transitions, &ResultPointsAndTransitionsComparator);
+  delete ((CBC_ResultPointsAndTransitions*)transitions[2]);
+  delete ((CBC_ResultPointsAndTransitions*)transitions[3]);
+  CBC_ResultPointsAndTransitions* lSideOne =
+      (CBC_ResultPointsAndTransitions*)transitions[0];
+  CBC_ResultPointsAndTransitions* lSideTwo =
+      (CBC_ResultPointsAndTransitions*)transitions[1];
+  CFX_MapPtrTemplate<CBC_ResultPoint*, int32_t> pointCount;
+  Increment(pointCount, lSideOne->GetFrom());
+  Increment(pointCount, lSideOne->GetTo());
+  Increment(pointCount, lSideTwo->GetFrom());
+  Increment(pointCount, lSideTwo->GetTo());
+  delete ((CBC_ResultPointsAndTransitions*)transitions[1]);
+  delete ((CBC_ResultPointsAndTransitions*)transitions[0]);
+  transitions.RemoveAll();
+  CBC_ResultPoint* maybeTopLeft = NULL;
+  CBC_ResultPoint* bottomLeft = NULL;
+  CBC_ResultPoint* maybeBottomRight = NULL;
+  FX_POSITION itBegin = pointCount.GetStartPosition();
+  while (itBegin) {
+    CBC_ResultPoint* key = 0;
+    int32_t value = 0;
+    pointCount.GetNextAssoc(itBegin, key, value);
+    if (value == 2) {
+      bottomLeft = key;
+    } else {
+      if (maybeBottomRight == NULL) {
+        maybeBottomRight = key;
+      } else {
+        maybeTopLeft = key;
+      }
+    }
+  }
+  if (maybeTopLeft == NULL || bottomLeft == NULL || maybeBottomRight == NULL) {
+    delete pointA;
+    delete pointB;
+    delete pointC;
+    delete pointD;
+    e = BCExceptionNotFound;
+    return NULL;
+  }
+  CFX_PtrArray corners;
+  corners.SetSize(3);
+  corners[0] = maybeTopLeft;
+  corners[1] = bottomLeft;
+  corners[2] = maybeBottomRight;
+  OrderBestPatterns(&corners);
+  CBC_ResultPoint* bottomRight = (CBC_ResultPoint*)corners[0];
+  bottomLeft = (CBC_ResultPoint*)corners[1];
+  CBC_ResultPoint* topLeft = (CBC_ResultPoint*)corners[2];
+  CBC_ResultPoint* topRight = NULL;
+  int32_t value;
+  if (!pointCount.Lookup(pointA, value)) {
+    topRight = pointA;
+  } else if (!pointCount.Lookup(pointB, value)) {
+    topRight = pointB;
+  } else if (!pointCount.Lookup(pointC, value)) {
+    topRight = pointC;
+  } else {
+    topRight = pointD;
+  }
+  int32_t dimensionTop = std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(topLeft, topRight))
+                             ->GetTransitions();
+  int32_t dimensionRight = std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                               TransitionsBetween(bottomRight, topRight))
+                               ->GetTransitions();
+  if ((dimensionTop & 0x01) == 1) {
+    dimensionTop++;
+  }
+  dimensionTop += 2;
+  if ((dimensionRight & 0x01) == 1) {
+    dimensionRight++;
+  }
+  dimensionRight += 2;
+  std::unique_ptr<CBC_CommonBitMatrix> bits;
+  std::unique_ptr<CBC_ResultPoint> correctedTopRight;
+  if (4 * dimensionTop >= 7 * dimensionRight ||
+      4 * dimensionRight >= 7 * dimensionTop) {
+    correctedTopRight.reset(
+        CorrectTopRightRectangular(bottomLeft, bottomRight, topLeft, topRight,
+                                   dimensionTop, dimensionRight));
+    if (correctedTopRight.get() == NULL) {
+      correctedTopRight.reset(topRight);
+    } else {
+      delete topRight;
+      topRight = NULL;
+    }
+    dimensionTop = std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                       TransitionsBetween(topLeft, correctedTopRight.get()))
+                       ->GetTransitions();
+    dimensionRight =
+        std::unique_ptr<CBC_ResultPointsAndTransitions>(
+            TransitionsBetween(bottomRight, correctedTopRight.get()))
+            ->GetTransitions();
+    if ((dimensionTop & 0x01) == 1) {
+      dimensionTop++;
+    }
+    if ((dimensionRight & 0x01) == 1) {
+      dimensionRight++;
+    }
+    bits.reset(SampleGrid(m_image, topLeft, bottomLeft, bottomRight,
+                          correctedTopRight.get(), dimensionTop, dimensionRight,
+                          e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  } else {
+    int32_t dimension = std::min(dimensionRight, dimensionTop);
+    correctedTopRight.reset(
+        CorrectTopRight(bottomLeft, bottomRight, topLeft, topRight, dimension));
+    if (correctedTopRight.get() == NULL) {
+      correctedTopRight.reset(topRight);
+    } else {
+      delete topRight;
+      topRight = NULL;
+    }
+    int32_t dimensionCorrected =
+        std::max(std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                     TransitionsBetween(topLeft, correctedTopRight.get()))
+                     ->GetTransitions(),
+                 std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                     TransitionsBetween(bottomRight, correctedTopRight.get()))
+                     ->GetTransitions());
+    dimensionCorrected++;
+    if ((dimensionCorrected & 0x01) == 1) {
+      dimensionCorrected++;
+    }
+    bits.reset(SampleGrid(m_image, topLeft, bottomLeft, bottomRight,
+                          correctedTopRight.get(), dimensionCorrected,
+                          dimensionCorrected, e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  CFX_PtrArray* result = new CFX_PtrArray;
+  result->SetSize(4);
+  result->Add(topLeft);
+  result->Add(bottomLeft);
+  result->Add(bottomRight);
+  result->Add(correctedTopRight.release());
+  return new CBC_QRDetectorResult(bits.release(), result);
+}
+CBC_ResultPoint* CBC_DataMatrixDetector::CorrectTopRightRectangular(
+    CBC_ResultPoint* bottomLeft,
+    CBC_ResultPoint* bottomRight,
+    CBC_ResultPoint* topLeft,
+    CBC_ResultPoint* topRight,
+    int32_t dimensionTop,
+    int32_t dimensionRight) {
+  FX_FLOAT corr = Distance(bottomLeft, bottomRight) / (FX_FLOAT)dimensionTop;
+  int32_t norm = Distance(topLeft, topRight);
+  FX_FLOAT cos = (topRight->GetX() - topLeft->GetX()) / norm;
+  FX_FLOAT sin = (topRight->GetY() - topLeft->GetY()) / norm;
+  std::unique_ptr<CBC_ResultPoint> c1(new CBC_ResultPoint(
+      topRight->GetX() + corr * cos, topRight->GetY() + corr * sin));
+  corr = Distance(bottomLeft, topLeft) / (FX_FLOAT)dimensionRight;
+  norm = Distance(bottomRight, topRight);
+  cos = (topRight->GetX() - bottomRight->GetX()) / norm;
+  sin = (topRight->GetY() - bottomRight->GetY()) / norm;
+  std::unique_ptr<CBC_ResultPoint> c2(new CBC_ResultPoint(
+      topRight->GetX() + corr * cos, topRight->GetY() + corr * sin));
+  if (!IsValid(c1.get())) {
+    if (IsValid(c2.get())) {
+      return c2.release();
+    }
+    return NULL;
+  } else if (!IsValid(c2.get())) {
+    return c1.release();
+  }
+  int32_t l1 = FXSYS_abs(dimensionTop -
+                         std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(topLeft, c1.get()))
+                             ->GetTransitions()) +
+               FXSYS_abs(dimensionRight -
+                         std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(bottomRight, c1.get()))
+                             ->GetTransitions());
+  int32_t l2 = FXSYS_abs(dimensionTop -
+                         std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(topLeft, c2.get()))
+                             ->GetTransitions()) +
+               FXSYS_abs(dimensionRight -
+                         std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(bottomRight, c2.get()))
+                             ->GetTransitions());
+  if (l1 <= l2) {
+    return c1.release();
+  }
+  return c2.release();
+}
+CBC_ResultPoint* CBC_DataMatrixDetector::CorrectTopRight(
+    CBC_ResultPoint* bottomLeft,
+    CBC_ResultPoint* bottomRight,
+    CBC_ResultPoint* topLeft,
+    CBC_ResultPoint* topRight,
+    int32_t dimension) {
+  FX_FLOAT corr = Distance(bottomLeft, bottomRight) / (FX_FLOAT)dimension;
+  int32_t norm = Distance(topLeft, topRight);
+  FX_FLOAT cos = (topRight->GetX() - topLeft->GetX()) / norm;
+  FX_FLOAT sin = (topRight->GetY() - topLeft->GetY()) / norm;
+  std::unique_ptr<CBC_ResultPoint> c1(new CBC_ResultPoint(
+      topRight->GetX() + corr * cos, topRight->GetY() + corr * sin));
+  corr = Distance(bottomLeft, bottomRight) / (FX_FLOAT)dimension;
+  norm = Distance(bottomRight, topRight);
+  cos = (topRight->GetX() - bottomRight->GetX()) / norm;
+  sin = (topRight->GetY() - bottomRight->GetY()) / norm;
+  std::unique_ptr<CBC_ResultPoint> c2(new CBC_ResultPoint(
+      topRight->GetX() + corr * cos, topRight->GetY() + corr * sin));
+  if (!IsValid(c1.get())) {
+    if (IsValid(c2.get())) {
+      return c2.release();
+    }
+    return NULL;
+  } else if (!IsValid(c2.get())) {
+    return c1.release();
+  }
+  int32_t l1 = FXSYS_abs(std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(topLeft, c1.get()))
+                             ->GetTransitions() -
+                         std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(bottomRight, c1.get()))
+                             ->GetTransitions());
+  int32_t l2 = FXSYS_abs(std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(topLeft, c2.get()))
+                             ->GetTransitions() -
+                         std::unique_ptr<CBC_ResultPointsAndTransitions>(
+                             TransitionsBetween(bottomRight, c2.get()))
+                             ->GetTransitions());
+  return l1 <= l2 ? c1.release() : c2.release();
+}
+FX_BOOL CBC_DataMatrixDetector::IsValid(CBC_ResultPoint* p) {
+  return p->GetX() >= 0 && p->GetX() < m_image->GetWidth() && p->GetY() > 0 &&
+         p->GetY() < m_image->GetHeight();
+}
+int32_t CBC_DataMatrixDetector::Round(FX_FLOAT d) {
+  return (int32_t)(d + 0.5f);
+}
+int32_t CBC_DataMatrixDetector::Distance(CBC_ResultPoint* a,
+                                         CBC_ResultPoint* b) {
+  return Round(
+      (FX_FLOAT)sqrt((a->GetX() - b->GetX()) * (a->GetX() - b->GetX()) +
+                     (a->GetY() - b->GetY()) * (a->GetY() - b->GetY())));
+}
+void CBC_DataMatrixDetector::Increment(
+    CFX_MapPtrTemplate<CBC_ResultPoint*, int32_t>& table,
+    CBC_ResultPoint* key) {
+  int32_t value;
+  if (table.Lookup(key, value)) {
+    table.SetAt(key, INTEGERS[value + 1]);
+  } else {
+    table.SetAt(key, INTEGERS[1]);
+  }
+}
+CBC_CommonBitMatrix* CBC_DataMatrixDetector::SampleGrid(
+    CBC_CommonBitMatrix* image,
+    CBC_ResultPoint* topLeft,
+    CBC_ResultPoint* bottomLeft,
+    CBC_ResultPoint* bottomRight,
+    CBC_ResultPoint* topRight,
+    int32_t dimensionX,
+    int32_t dimensionY,
+    int32_t& e) {
+  CBC_QRGridSampler& sampler = CBC_QRGridSampler::GetInstance();
+  CBC_CommonBitMatrix* cbm = sampler.SampleGrid(
+      image, dimensionX, dimensionY, 0.5f, 0.5f, dimensionX - 0.5f, 0.5f,
+      dimensionX - 0.5f, dimensionY - 0.5f, 0.5f, dimensionY - 0.5f,
+      topLeft->GetX(), topLeft->GetY(), topRight->GetX(), topRight->GetY(),
+      bottomRight->GetX(), bottomRight->GetY(), bottomLeft->GetX(),
+      bottomLeft->GetY(), e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  return cbm;
+}
+CBC_ResultPointsAndTransitions* CBC_DataMatrixDetector::TransitionsBetween(
+    CBC_ResultPoint* from,
+    CBC_ResultPoint* to) {
+  int32_t fromX = (int32_t)from->GetX();
+  int32_t fromY = (int32_t)from->GetY();
+  int32_t toX = (int32_t)to->GetX();
+  int32_t toY = (int32_t)to->GetY();
+  FX_BOOL steep = FXSYS_abs(toY - fromY) > FXSYS_abs(toX - fromX);
+  if (steep) {
+    int32_t temp = fromX;
+    fromX = fromY;
+    fromY = temp;
+    temp = toX;
+    toX = toY;
+    toY = temp;
+  }
+  int32_t dx = FXSYS_abs(toX - fromX);
+  int32_t dy = FXSYS_abs(toY - fromY);
+  int32_t error = -dx >> 1;
+  int32_t ystep = fromY < toY ? 1 : -1;
+  int32_t xstep = fromX < toX ? 1 : -1;
+  int32_t transitions = 0;
+  FX_BOOL inBlack = m_image->Get(steep ? fromY : fromX, steep ? fromX : fromY);
+  for (int32_t x = fromX, y = fromY; x != toX; x += xstep) {
+    FX_BOOL isBlack = m_image->Get(steep ? y : x, steep ? x : y);
+    if (isBlack != inBlack) {
+      transitions++;
+      inBlack = isBlack;
+    }
+    error += dy;
+    if (error > 0) {
+      if (y == toY) {
+        break;
+      }
+      y += ystep;
+      error -= dx;
+    }
+  }
+  return new CBC_ResultPointsAndTransitions(from, to, transitions);
+}
+void CBC_DataMatrixDetector::OrderBestPatterns(CFX_PtrArray* patterns) {
+  FX_FLOAT abDistance = (FX_FLOAT)Distance((CBC_ResultPoint*)(*patterns)[0],
+                                           (CBC_ResultPoint*)(*patterns)[1]);
+  FX_FLOAT bcDistance = (FX_FLOAT)Distance((CBC_ResultPoint*)(*patterns)[1],
+                                           (CBC_ResultPoint*)(*patterns)[2]);
+  FX_FLOAT acDistance = (FX_FLOAT)Distance((CBC_ResultPoint*)(*patterns)[0],
+                                           (CBC_ResultPoint*)(*patterns)[2]);
+  CBC_ResultPoint *topLeft, *topRight, *bottomLeft;
+  if (bcDistance >= abDistance && bcDistance >= acDistance) {
+    topLeft = (CBC_ResultPoint*)(*patterns)[0];
+    topRight = (CBC_ResultPoint*)(*patterns)[1];
+    bottomLeft = (CBC_ResultPoint*)(*patterns)[2];
+  } else if (acDistance >= bcDistance && acDistance >= abDistance) {
+    topLeft = (CBC_ResultPoint*)(*patterns)[1];
+    topRight = (CBC_ResultPoint*)(*patterns)[0];
+    bottomLeft = (CBC_ResultPoint*)(*patterns)[2];
+  } else {
+    topLeft = (CBC_ResultPoint*)(*patterns)[2];
+    topRight = (CBC_ResultPoint*)(*patterns)[0];
+    bottomLeft = (CBC_ResultPoint*)(*patterns)[1];
+  }
+  if ((bottomLeft->GetY() - topLeft->GetY()) *
+          (topRight->GetX() - topLeft->GetX()) <
+      (bottomLeft->GetX() - topLeft->GetX()) *
+          (topRight->GetY() - topLeft->GetY())) {
+    CBC_ResultPoint* temp = topRight;
+    topRight = bottomLeft;
+    bottomLeft = temp;
+  }
+  (*patterns)[0] = bottomLeft;
+  (*patterns)[1] = topLeft;
+  (*patterns)[2] = topRight;
+}