XFA: clang-format all pdfium code.

No behavior change.

Generated by:
  find . -name '*.cpp' -o -name '*.h' | \
  grep -E -v 'third_party|thirdparties|lpng_v163|tiff_v403' | \
  xargs ../../buildtools/mac/clang-format -i
Then manually merged https://codereview.chromium.org/1269223002/

See thread "tabs vs spaces" on pdfium@googlegroups.com for discussion.

BUG=none

1 files changed, 226 insertions, 215 deletions

diff --git a/xfa/src/fxbarcode/qrcode/BC_QRDetector.cpp b/xfa/src/fxbarcode/qrcode/BC_QRDetector.cpp
index 0b75da7bec..0a95ddc1be 100644
--- a/xfa/src/fxbarcode/qrcode/BC_QRDetector.cpp
+++ b/xfa/src/fxbarcode/qrcode/BC_QRDetector.cpp
@@ -31,234 +31,245 @@
 #include "BC_QRFinderPatternFinder.h"

 #include "BC_QRDetectorResult.h"

 #include "BC_QRDetector.h"

-CBC_QRDetector::CBC_QRDetector(CBC_CommonBitMatrix *image): m_image(image)

-{

+CBC_QRDetector::CBC_QRDetector(CBC_CommonBitMatrix* image) : m_image(image) {}

+CBC_QRDetector::~CBC_QRDetector() {}

+CBC_QRDetectorResult* CBC_QRDetector::Detect(int32_t hints, int32_t& e) {

+  CBC_QRFinderPatternFinder finder(m_image);

+  CBC_QRFinderPatternInfo* qpi = finder.Find(hints, e);

+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+  CBC_AutoPtr<CBC_QRFinderPatternInfo> info(qpi);

+  CBC_QRDetectorResult* qdr = ProcessFinderPatternInfo(info.get(), e);

+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+  return qdr;

 }

-CBC_QRDetector::~CBC_QRDetector()

-{

-}

-CBC_QRDetectorResult *CBC_QRDetector::Detect(int32_t hints, int32_t &e)

-{

-    CBC_QRFinderPatternFinder finder(m_image);

-    CBC_QRFinderPatternInfo* qpi = finder.Find(hints, e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CBC_AutoPtr<CBC_QRFinderPatternInfo> info(qpi);

-    CBC_QRDetectorResult* qdr = ProcessFinderPatternInfo(info.get(), e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    return qdr;

-}

-CBC_QRDetectorResult* CBC_QRDetector::ProcessFinderPatternInfo(CBC_QRFinderPatternInfo *info, int32_t &e)

-{

-    CBC_AutoPtr<CBC_QRFinderPattern> topLeft(info->GetTopLeft());

-    CBC_AutoPtr<CBC_QRFinderPattern> topRight(info->GetTopRight());

-    CBC_AutoPtr<CBC_QRFinderPattern> bottomLeft(info->GetBottomLeft());

-    FX_FLOAT moduleSize = CalculateModuleSize(topLeft.get(), topRight.get(), bottomLeft.get());

-    if(moduleSize < 1.0f) {

-        e = BCExceptionRead;

-        BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    }

-    int32_t dimension = ComputeDimension(topLeft.get(), topRight.get(), bottomLeft.get(), moduleSize, e);

+CBC_QRDetectorResult* CBC_QRDetector::ProcessFinderPatternInfo(

+    CBC_QRFinderPatternInfo* info,

+    int32_t& e) {

+  CBC_AutoPtr<CBC_QRFinderPattern> topLeft(info->GetTopLeft());

+  CBC_AutoPtr<CBC_QRFinderPattern> topRight(info->GetTopRight());

+  CBC_AutoPtr<CBC_QRFinderPattern> bottomLeft(info->GetBottomLeft());

+  FX_FLOAT moduleSize =

+      CalculateModuleSize(topLeft.get(), topRight.get(), bottomLeft.get());

+  if (moduleSize < 1.0f) {

+    e = BCExceptionRead;

     BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CBC_QRCoderVersion *provisionalVersion = CBC_QRCoderVersion::GetProvisionalVersionForDimension(dimension, e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    int32_t modulesBetweenFPCenters = provisionalVersion->GetDimensionForVersion() - 7;

-    CBC_QRAlignmentPattern * alignmentPattern = NULL;

-    if(provisionalVersion->GetAlignmentPatternCenters()->GetSize() > 0) {

-        FX_FLOAT  bottomRightX = topRight->GetX() - topLeft->GetX() + bottomLeft->GetX();

-        FX_FLOAT bottomRightY = topRight->GetY() - topLeft->GetY() + bottomLeft->GetY();

-        FX_FLOAT correctionToTopLeft = 1.0f - 3.0f / (FX_FLOAT) modulesBetweenFPCenters;

-        FX_FLOAT xtemp = (topLeft->GetX() + correctionToTopLeft * (bottomRightX - topLeft->GetX()));

-        int32_t estAlignmentX = (int32_t)xtemp ;

-        FX_FLOAT ytemp =  (topLeft->GetY() + correctionToTopLeft * (bottomRightY - topLeft->GetY()));

-        int32_t estAlignmentY = (int32_t)ytemp;

-        for(int32_t i = 4; i <= 16; i <<= 1) {

-            CBC_QRAlignmentPattern *temp = FindAlignmentInRegion(moduleSize, estAlignmentX, estAlignmentY, (FX_FLOAT) i, e);

-            alignmentPattern = temp;

-            break;

-        }

+  }

+  int32_t dimension = ComputeDimension(topLeft.get(), topRight.get(),

+                                       bottomLeft.get(), moduleSize, e);

+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+  CBC_QRCoderVersion* provisionalVersion =

+      CBC_QRCoderVersion::GetProvisionalVersionForDimension(dimension, e);

+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+  int32_t modulesBetweenFPCenters =

+      provisionalVersion->GetDimensionForVersion() - 7;

+  CBC_QRAlignmentPattern* alignmentPattern = NULL;

+  if (provisionalVersion->GetAlignmentPatternCenters()->GetSize() > 0) {

+    FX_FLOAT bottomRightX =

+        topRight->GetX() - topLeft->GetX() + bottomLeft->GetX();

+    FX_FLOAT bottomRightY =

+        topRight->GetY() - topLeft->GetY() + bottomLeft->GetY();

+    FX_FLOAT correctionToTopLeft =

+        1.0f - 3.0f / (FX_FLOAT)modulesBetweenFPCenters;

+    FX_FLOAT xtemp = (topLeft->GetX() +

+                      correctionToTopLeft * (bottomRightX - topLeft->GetX()));

+    int32_t estAlignmentX = (int32_t)xtemp;

+    FX_FLOAT ytemp = (topLeft->GetY() +

+                      correctionToTopLeft * (bottomRightY - topLeft->GetY()));

+    int32_t estAlignmentY = (int32_t)ytemp;

+    for (int32_t i = 4; i <= 16; i <<= 1) {

+      CBC_QRAlignmentPattern* temp = FindAlignmentInRegion(

+          moduleSize, estAlignmentX, estAlignmentY, (FX_FLOAT)i, e);

+      alignmentPattern = temp;

+      break;

     }

-    CBC_CommonBitMatrix *bits = SampleGrid(m_image, topLeft.get(), topRight.get(), bottomLeft.get(), (CBC_ResultPoint*)(alignmentPattern), dimension, e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CFX_PtrArray *points = FX_NEW CFX_PtrArray;

-    if(alignmentPattern == NULL) {

-        points->Add(bottomLeft.release());

-        points->Add(topLeft.release());

-        points->Add(topRight.release());

-    } else {

-        points->Add(bottomLeft.release());

-        points->Add(topLeft.release());

-        points->Add(topRight.release());

-        points->Add(alignmentPattern);

-    }

-    return FX_NEW CBC_QRDetectorResult(bits, points);

+  }

+  CBC_CommonBitMatrix* bits =

+      SampleGrid(m_image, topLeft.get(), topRight.get(), bottomLeft.get(),

+                 (CBC_ResultPoint*)(alignmentPattern), dimension, e);

+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+  CFX_PtrArray* points = FX_NEW CFX_PtrArray;

+  if (alignmentPattern == NULL) {

+    points->Add(bottomLeft.release());

+    points->Add(topLeft.release());

+    points->Add(topRight.release());

+  } else {

+    points->Add(bottomLeft.release());

+    points->Add(topLeft.release());

+    points->Add(topRight.release());

+    points->Add(alignmentPattern);

+  }

+  return FX_NEW CBC_QRDetectorResult(bits, points);

 }

-CBC_CommonBitMatrix *CBC_QRDetector::SampleGrid(CBC_CommonBitMatrix *image, CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight,

-        CBC_ResultPoint *bottomLeft, CBC_ResultPoint* alignmentPattern,

-        int32_t dimension, int32_t &e)

-{

-    FX_FLOAT dimMinusThree = (FX_FLOAT) dimension - 3.5f;

-    FX_FLOAT bottomRightX;

-    FX_FLOAT bottomRightY;

-    FX_FLOAT sourceBottomRightX;

-    FX_FLOAT sourceBottomRightY;

-    if (alignmentPattern != NULL) {

-        bottomRightX = alignmentPattern->GetX();

-        bottomRightY = alignmentPattern->GetY();

-        sourceBottomRightX = sourceBottomRightY = dimMinusThree - 3.0f;

-    } else {

-        bottomRightX = (topRight->GetX() - topLeft->GetX()) + bottomLeft->GetX();

-        bottomRightY = (topRight->GetY() - topLeft->GetY()) + bottomLeft->GetY();

-        sourceBottomRightX = sourceBottomRightY = dimMinusThree;

-    }

-    CBC_QRGridSampler &sampler = CBC_QRGridSampler::GetInstance();

-    CBC_CommonBitMatrix* cbm = sampler.SampleGrid(image,

-                               dimension, dimension,

-                               3.5f,

-                               3.5f,

-                               dimMinusThree,

-                               3.5f,

-                               sourceBottomRightX,

-                               sourceBottomRightY,

-                               3.5f,

-                               dimMinusThree,

-                               topLeft->GetX(),

-                               topLeft->GetY(),

-                               topRight->GetX(),

-                               topRight->GetY(),

-                               bottomRightX,

-                               bottomRightY,

-                               bottomLeft->GetX(),

-                               bottomLeft->GetY(), e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    return cbm;

+CBC_CommonBitMatrix* CBC_QRDetector::SampleGrid(

+    CBC_CommonBitMatrix* image,

+    CBC_ResultPoint* topLeft,

+    CBC_ResultPoint* topRight,

+    CBC_ResultPoint* bottomLeft,

+    CBC_ResultPoint* alignmentPattern,

+    int32_t dimension,

+    int32_t& e) {

+  FX_FLOAT dimMinusThree = (FX_FLOAT)dimension - 3.5f;

+  FX_FLOAT bottomRightX;

+  FX_FLOAT bottomRightY;

+  FX_FLOAT sourceBottomRightX;

+  FX_FLOAT sourceBottomRightY;

+  if (alignmentPattern != NULL) {

+    bottomRightX = alignmentPattern->GetX();

+    bottomRightY = alignmentPattern->GetY();

+    sourceBottomRightX = sourceBottomRightY = dimMinusThree - 3.0f;

+  } else {

+    bottomRightX = (topRight->GetX() - topLeft->GetX()) + bottomLeft->GetX();

+    bottomRightY = (topRight->GetY() - topLeft->GetY()) + bottomLeft->GetY();

+    sourceBottomRightX = sourceBottomRightY = dimMinusThree;

+  }

+  CBC_QRGridSampler& sampler = CBC_QRGridSampler::GetInstance();

+  CBC_CommonBitMatrix* cbm = sampler.SampleGrid(

+      image, dimension, dimension, 3.5f, 3.5f, dimMinusThree, 3.5f,

+      sourceBottomRightX, sourceBottomRightY, 3.5f, dimMinusThree,

+      topLeft->GetX(), topLeft->GetY(), topRight->GetX(), topRight->GetY(),

+      bottomRightX, bottomRightY, bottomLeft->GetX(), bottomLeft->GetY(), e);

+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+  return cbm;

 }

-int32_t CBC_QRDetector::ComputeDimension(CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight,

-        CBC_ResultPoint *bottomLeft, FX_FLOAT moduleSize, int32_t &e)

-{

-    int32_t tltrCentersDimension = Round(CBC_QRFinderPatternFinder::Distance(topLeft, topRight) / moduleSize);

-    int32_t tlblCentersDimension = Round(CBC_QRFinderPatternFinder::Distance(topLeft, bottomLeft) / moduleSize);

-    int32_t dimension = ((tltrCentersDimension + tlblCentersDimension) >> 1) + 7;

-    switch(dimension & 0x03) {

-        case 0:

-            dimension++;

-            break;

-        case 2:

-            dimension--;

-            break;

-        case 3: {

-                e = BCExceptionRead;

-                BC_EXCEPTION_CHECK_ReturnValue(e, 0);

-            }

+int32_t CBC_QRDetector::ComputeDimension(CBC_ResultPoint* topLeft,

+                                         CBC_ResultPoint* topRight,

+                                         CBC_ResultPoint* bottomLeft,

+                                         FX_FLOAT moduleSize,

+                                         int32_t& e) {

+  int32_t tltrCentersDimension = Round(

+      CBC_QRFinderPatternFinder::Distance(topLeft, topRight) / moduleSize);

+  int32_t tlblCentersDimension = Round(

+      CBC_QRFinderPatternFinder::Distance(topLeft, bottomLeft) / moduleSize);

+  int32_t dimension = ((tltrCentersDimension + tlblCentersDimension) >> 1) + 7;

+  switch (dimension & 0x03) {

+    case 0:

+      dimension++;

+      break;

+    case 2:

+      dimension--;

+      break;

+    case 3: {

+      e = BCExceptionRead;

+      BC_EXCEPTION_CHECK_ReturnValue(e, 0);

     }

-    return dimension;

+  }

+  return dimension;

 }

-FX_FLOAT CBC_QRDetector::CalculateModuleSize(CBC_ResultPoint *topLeft, CBC_ResultPoint *topRight, CBC_ResultPoint *bottomLeft)

-{

-    return (CalculateModuleSizeOneWay(topLeft, topRight) + CalculateModuleSizeOneWay(topLeft, bottomLeft)) / 2.0f;

+FX_FLOAT CBC_QRDetector::CalculateModuleSize(CBC_ResultPoint* topLeft,

+                                             CBC_ResultPoint* topRight,

+                                             CBC_ResultPoint* bottomLeft) {

+  return (CalculateModuleSizeOneWay(topLeft, topRight) +

+          CalculateModuleSizeOneWay(topLeft, bottomLeft)) /

+         2.0f;

 }

-FX_FLOAT CBC_QRDetector::CalculateModuleSizeOneWay(CBC_ResultPoint *pattern, CBC_ResultPoint *otherPattern)

-{

-    FX_FLOAT moduleSizeEst1 = SizeOfBlackWhiteBlackRunBothWays((int32_t) pattern->GetX(),

-                              (int32_t) pattern->GetY(),

-                              (int32_t) otherPattern->GetX(),

-                              (int32_t) otherPattern->GetY());

-    FX_FLOAT moduleSizeEst2 = SizeOfBlackWhiteBlackRunBothWays((int32_t) otherPattern->GetX(),

-                              (int32_t) otherPattern->GetY(),

-                              (int32_t) pattern->GetX(),

-                              (int32_t) pattern->GetY());

-    if (FXSYS_isnan(moduleSizeEst1)) {

-        return moduleSizeEst2;

-    }

-    if (FXSYS_isnan(moduleSizeEst2)) {

-        return moduleSizeEst1;

-    }

-    return (moduleSizeEst1 + moduleSizeEst2) / 14.0f;

+FX_FLOAT CBC_QRDetector::CalculateModuleSizeOneWay(

+    CBC_ResultPoint* pattern,

+    CBC_ResultPoint* otherPattern) {

+  FX_FLOAT moduleSizeEst1 = SizeOfBlackWhiteBlackRunBothWays(

+      (int32_t)pattern->GetX(), (int32_t)pattern->GetY(),

+      (int32_t)otherPattern->GetX(), (int32_t)otherPattern->GetY());

+  FX_FLOAT moduleSizeEst2 = SizeOfBlackWhiteBlackRunBothWays(

+      (int32_t)otherPattern->GetX(), (int32_t)otherPattern->GetY(),

+      (int32_t)pattern->GetX(), (int32_t)pattern->GetY());

+  if (FXSYS_isnan(moduleSizeEst1)) {

+    return moduleSizeEst2;

+  }

+  if (FXSYS_isnan(moduleSizeEst2)) {

+    return moduleSizeEst1;

+  }

+  return (moduleSizeEst1 + moduleSizeEst2) / 14.0f;

 }

-int32_t CBC_QRDetector::Round(FX_FLOAT d)

-{

-    return (int32_t)(d + 0.5f);

+int32_t CBC_QRDetector::Round(FX_FLOAT d) {

+  return (int32_t)(d + 0.5f);

 }

-FX_FLOAT CBC_QRDetector::SizeOfBlackWhiteBlackRunBothWays(int32_t fromX, int32_t fromY, int32_t toX, int32_t toY)

-{

-    FX_FLOAT result = SizeOfBlackWhiteBlackRun(fromX, fromY, toX, toY);

-    int32_t otherToX = fromX - (toX - fromX);

-    if (otherToX < 0) {

-        otherToX = -1;

-    } else if (otherToX >= m_image->GetWidth()) {

-        otherToX = m_image->GetWidth();

-    }

-    int32_t otherToY = fromY - (toY - fromY);

-    if (otherToY < 0) {

-        otherToY = -1;

-    } else if (otherToY >= m_image->GetHeight()) {

-        otherToY = m_image->GetHeight();

-    }

-    result += SizeOfBlackWhiteBlackRun(fromX, fromY, otherToX, otherToY);

-    return result - 1.0f;

+FX_FLOAT CBC_QRDetector::SizeOfBlackWhiteBlackRunBothWays(int32_t fromX,

+                                                          int32_t fromY,

+                                                          int32_t toX,

+                                                          int32_t toY) {

+  FX_FLOAT result = SizeOfBlackWhiteBlackRun(fromX, fromY, toX, toY);

+  int32_t otherToX = fromX - (toX - fromX);

+  if (otherToX < 0) {

+    otherToX = -1;

+  } else if (otherToX >= m_image->GetWidth()) {

+    otherToX = m_image->GetWidth();

+  }

+  int32_t otherToY = fromY - (toY - fromY);

+  if (otherToY < 0) {

+    otherToY = -1;

+  } else if (otherToY >= m_image->GetHeight()) {

+    otherToY = m_image->GetHeight();

+  }

+  result += SizeOfBlackWhiteBlackRun(fromX, fromY, otherToX, otherToY);

+  return result - 1.0f;

 }

-FX_FLOAT CBC_QRDetector::SizeOfBlackWhiteBlackRun(int32_t fromX, int32_t fromY, int32_t toX, int32_t toY)

-{

-    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;

+FX_FLOAT CBC_QRDetector::SizeOfBlackWhiteBlackRun(int32_t fromX,

+                                                  int32_t fromY,

+                                                  int32_t toX,

+                                                  int32_t toY) {

+  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 state = 0;

+  for (int32_t x = fromX, y = fromY; x != toX; x += xstep) {

+    int32_t realX = steep ? y : x;

+    int32_t realY = steep ? x : y;

+    if (state == 1) {

+      if (m_image->Get(realX, realY)) {

+        state++;

+      }

+    } else {

+      if (!m_image->Get(realX, realY)) {

+        state++;

+      }

     }

-    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 state = 0;

-    for (int32_t x = fromX, y = fromY; x != toX; x += xstep) {

-        int32_t realX = steep ? y : x;

-        int32_t realY = steep ? x : y;

-        if (state == 1) {

-            if (m_image->Get(realX, realY)) {

-                state++;

-            }

-        } else {

-            if (!m_image->Get(realX, realY)) {

-                state++;

-            }

-        }

-        if (state == 3) {

-            int32_t diffX = x - fromX;

-            int32_t diffY = y - fromY;

-            return (FX_FLOAT) sqrt((double) (diffX * diffX + diffY * diffY));

-        }

-        error += dy;

-        if (error > 0) {

-            y += ystep;

-            error -= dx;

-        }

+    if (state == 3) {

+      int32_t diffX = x - fromX;

+      int32_t diffY = y - fromY;

+      return (FX_FLOAT)sqrt((double)(diffX * diffX + diffY * diffY));

     }

-    int32_t diffX = toX - fromX;

-    int32_t diffY = toY - fromY;

-    return (FX_FLOAT) sqrt((double) (diffX * diffX + diffY * diffY));

-}

-CBC_QRAlignmentPattern *CBC_QRDetector::FindAlignmentInRegion(FX_FLOAT overallEstModuleSize, int32_t estAlignmentX,

-        int32_t estAlignmentY, FX_FLOAT allowanceFactor, int32_t &e)

-{

-    int32_t allowance = (int32_t) (allowanceFactor * overallEstModuleSize);

-    int32_t alignmentAreaLeftX = FX_MAX(0, estAlignmentX - allowance);

-    int32_t alignmentAreaRightX = FX_MIN(m_image->GetWidth() - 1, estAlignmentX + allowance);

-    if (alignmentAreaRightX - alignmentAreaLeftX < overallEstModuleSize * 3) {

-        e = BCExceptionRead;

-        BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+    error += dy;

+    if (error > 0) {

+      y += ystep;

+      error -= dx;

     }

-    int32_t alignmentAreaTopY = FX_MAX(0, estAlignmentY - allowance);

-    int32_t alignmentAreaBottomY = FX_MIN(m_image->GetHeight() - 1, estAlignmentY + allowance);

-    CBC_QRAlignmentPatternFinder alignmentFinder(m_image,

-            alignmentAreaLeftX,

-            alignmentAreaTopY,

-            alignmentAreaRightX - alignmentAreaLeftX,

-            alignmentAreaBottomY - alignmentAreaTopY,

-            overallEstModuleSize);

-    CBC_QRAlignmentPattern *qap = alignmentFinder.Find(e);

+  }

+  int32_t diffX = toX - fromX;

+  int32_t diffY = toY - fromY;

+  return (FX_FLOAT)sqrt((double)(diffX * diffX + diffY * diffY));

+}

+CBC_QRAlignmentPattern* CBC_QRDetector::FindAlignmentInRegion(

+    FX_FLOAT overallEstModuleSize,

+    int32_t estAlignmentX,

+    int32_t estAlignmentY,

+    FX_FLOAT allowanceFactor,

+    int32_t& e) {

+  int32_t allowance = (int32_t)(allowanceFactor * overallEstModuleSize);

+  int32_t alignmentAreaLeftX = FX_MAX(0, estAlignmentX - allowance);

+  int32_t alignmentAreaRightX =

+      FX_MIN(m_image->GetWidth() - 1, estAlignmentX + allowance);

+  if (alignmentAreaRightX - alignmentAreaLeftX < overallEstModuleSize * 3) {

+    e = BCExceptionRead;

     BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    return qap;

+  }

+  int32_t alignmentAreaTopY = FX_MAX(0, estAlignmentY - allowance);

+  int32_t alignmentAreaBottomY =

+      FX_MIN(m_image->GetHeight() - 1, estAlignmentY + allowance);

+  CBC_QRAlignmentPatternFinder alignmentFinder(

+      m_image, alignmentAreaLeftX, alignmentAreaTopY,

+      alignmentAreaRightX - alignmentAreaLeftX,

+      alignmentAreaBottomY - alignmentAreaTopY, overallEstModuleSize);

+  CBC_QRAlignmentPattern* qap = alignmentFinder.Find(e);

+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+  return qap;

 }