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// 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
#ifndef XFA_SRC_FXBARCODE_QRCODE_BC_QRDETECTOR_H_
#define XFA_SRC_FXBARCODE_QRCODE_BC_QRDETECTOR_H_
#include "core/include/fxcrt/fx_basic.h"
class CBC_ResultPoint;
class CBC_CommonBitMatrix;
class CBC_QRDetectorResult;
class CBC_QRFinderPatternInfo;
class CBC_QRAlignmentPattern;
class CBC_QRDetector {
private:
CBC_CommonBitMatrix* m_image;
public:
CBC_QRDetector(CBC_CommonBitMatrix* image);
virtual ~CBC_QRDetector();
CBC_CommonBitMatrix* GetImage();
CBC_QRDetectorResult* Detect(int32_t hints, int32_t& e);
CBC_QRDetectorResult* ProcessFinderPatternInfo(CBC_QRFinderPatternInfo* info,
int32_t& e);
FX_FLOAT CalculateModuleSize(CBC_ResultPoint* topLeft,
CBC_ResultPoint* topRight,
CBC_ResultPoint* bottomLeft);
FX_FLOAT CalculateModuleSizeOneWay(CBC_ResultPoint* pattern,
CBC_ResultPoint* otherPattern);
FX_FLOAT SizeOfBlackWhiteBlackRunBothWays(int32_t fromX,
int32_t fromY,
int32_t toX,
int32_t toY);
FX_FLOAT SizeOfBlackWhiteBlackRun(int32_t fromX,
int32_t fromY,
int32_t toX,
int32_t toY);
CBC_QRAlignmentPattern* FindAlignmentInRegion(FX_FLOAT overallEstModuleSize,
int32_t estAlignmentX,
int32_t estAlignmentY,
FX_FLOAT allowanceFactor,
int32_t& e);
static int32_t Round(FX_FLOAT d);
static int32_t ComputeDimension(CBC_ResultPoint* topLeft,
CBC_ResultPoint* topRight,
CBC_ResultPoint* bottomLeft,
FX_FLOAT moduleSize,
int32_t& e);
static CBC_CommonBitMatrix* SampleGrid(CBC_CommonBitMatrix* image,
CBC_ResultPoint* topLeft,
CBC_ResultPoint* topRight,
CBC_ResultPoint* bottomLeft,
CBC_ResultPoint* alignmentPattern,
int32_t dimension,
int32_t& e);
};
#endif // XFA_SRC_FXBARCODE_QRCODE_BC_QRDETECTOR_H_
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