diff options
Diffstat (limited to 'xfa/src/fxbarcode/datamatrix/BC_DataMatrixDetector.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/datamatrix/BC_DataMatrixDetector.cpp | 406 |
1 files changed, 0 insertions, 406 deletions
diff --git a/xfa/src/fxbarcode/datamatrix/BC_DataMatrixDetector.cpp b/xfa/src/fxbarcode/datamatrix/BC_DataMatrixDetector.cpp deleted file mode 100644 index c29c64862a..0000000000 --- a/xfa/src/fxbarcode/datamatrix/BC_DataMatrixDetector.cpp +++ /dev/null @@ -1,406 +0,0 @@ -// 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/src/fxbarcode/datamatrix/BC_DataMatrixDetector.h" - -#include <algorithm> -#include <memory> - -#include "xfa/src/fxbarcode/BC_ResultPoint.h" -#include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" -#include "xfa/src/fxbarcode/common/BC_WhiteRectangleDetector.h" -#include "xfa/src/fxbarcode/qrcode/BC_QRDetectorResult.h" -#include "xfa/src/fxbarcode/qrcode/BC_QRFinderPatternFinder.h" -#include "xfa/src/fxbarcode/qrcode/BC_QRGridSampler.h" -#include "xfa/src/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; -} |