diff options
Diffstat (limited to 'xfa/src/fxbarcode/qrcode/BC_QRDetector.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/qrcode/BC_QRDetector.cpp | 441 |
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;
}
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