1 files changed, 61 insertions, 0 deletions
diff --git a/xfa/src/fxbarcode/pdf417/BC_PDF417ScanningDecoder.h b/xfa/src/fxbarcode/pdf417/BC_PDF417ScanningDecoder.h
new file mode 100644
index 0000000000..924e5f798a
--- /dev/null
+++ b/xfa/src/fxbarcode/pdf417/BC_PDF417ScanningDecoder.h
@@ -0,0 +1,61 @@
+// 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 _BC_PDF417SCANNINGDECODER_H_
+#define _BC_PDF417SCANNINGDECODER_H_
+class CBC_CommonDecoderResult;
+class CBC_CommonBitMatrix;
+class CBC_ErrorCorrection;
+class CBC_Codeword;
+class CBC_BoundingBox;
+class CBC_ResultPoint;
+class CBC_BarcodeMetadata;
+class CBC_BarcodeValue;
+class CBC_DetectionResult;
+class CBC_DetectionResultRowIndicatorColumn;
+class CBC_PDF417ScanningDecoder;
+class CBC_PDF417ScanningDecoder  : public CFX_Object
+{
+public:
+    CBC_PDF417ScanningDecoder();
+    virtual ~CBC_PDF417ScanningDecoder();
+    static void Initialize();
+    static void Finalize();
+    static CBC_CommonDecoderResult* decode(CBC_CommonBitMatrix* image, CBC_ResultPoint* imageTopLeft, CBC_ResultPoint* imageBottomLeft, CBC_ResultPoint* imageTopRight,
+                                           CBC_ResultPoint* imageBottomRight, FX_INT32 minCodewordWidth, FX_INT32 maxCodewordWidth, FX_INT32 &e);
+    static CFX_ByteString toString(CFX_PtrArray* barcodeMatrix);
+private:
+    static FX_INT32 CODEWORD_SKEW_SIZE;
+    static FX_INT32 MAX_ERRORS;
+    static FX_INT32 MAX_EC_CODEWORDS;
+    static CBC_PDF417ECErrorCorrection* errorCorrection;
+    static CBC_DetectionResult* merge(CBC_DetectionResultRowIndicatorColumn* leftRowIndicatorColumn, CBC_DetectionResultRowIndicatorColumn* rightRowIndicatorColumn, FX_INT32 &e);
+    static CBC_BoundingBox* adjustBoundingBox(CBC_DetectionResultRowIndicatorColumn* rowIndicatorColumn, FX_INT32 &e);
+    static FX_INT32 getMax(CFX_Int32Array& values);
+    static CBC_BarcodeMetadata* getBarcodeMetadata(CBC_DetectionResultRowIndicatorColumn* leftRowIndicatorColumn, CBC_DetectionResultRowIndicatorColumn* rightRowIndicatorColumn);
+    static CBC_DetectionResultRowIndicatorColumn* getRowIndicatorColumn(CBC_CommonBitMatrix* image, CBC_BoundingBox* boundingBox, CBC_ResultPoint startPoint,
+            FX_BOOL leftToRight, FX_INT32 minCodewordWidth, FX_INT32 maxCodewordWidth);
+    static void adjustCodewordCount(CBC_DetectionResult* detectionResult, CFX_PtrArray* barcodeMatrix, FX_INT32 &e);
+    static CBC_CommonDecoderResult* createDecoderResult(CBC_DetectionResult* detectionResult, FX_INT32 &e);
+    static CBC_CommonDecoderResult* createDecoderResultFromAmbiguousValues(FX_INT32 ecLevel, CFX_Int32Array &codewords, CFX_Int32Array &erasureArray, CFX_Int32Array &ambiguousIndexes,
+            CFX_PtrArray& ambiguousIndexValues, FX_INT32 &e);
+    static CFX_PtrArray* createBarcodeMatrix(CBC_DetectionResult* detectionResult);
+    static FX_BOOL isValidBarcodeColumn(CBC_DetectionResult* detectionResult, FX_INT32 barcodeColumn);
+    static FX_INT32 getStartColumn(CBC_DetectionResult* detectionResult, FX_INT32 barcodeColumn, FX_INT32 imageRow, FX_BOOL leftToRight);
+    static CBC_Codeword* detectCodeword(CBC_CommonBitMatrix* image, FX_INT32 minColumn, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 startColumn,
+                                        FX_INT32 imageRow, FX_INT32 minCodewordWidth, FX_INT32 maxCodewordWidth);
+    static CFX_Int32Array* getModuleBitCount(CBC_CommonBitMatrix* image, FX_INT32 minColumn, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 startColumn, FX_INT32 imageRow);
+    static FX_INT32 getNumberOfECCodeWords(FX_INT32 barcodeECLevel);
+    static FX_INT32 adjustCodewordStartColumn(CBC_CommonBitMatrix* image, FX_INT32 minColumn, FX_INT32 maxColumn, FX_BOOL leftToRight, FX_INT32 codewordStartColumn, FX_INT32 imageRow);
+    static FX_BOOL checkCodewordSkew(FX_INT32 codewordSize, FX_INT32 minCodewordWidth, FX_INT32 maxCodewordWidth);
+    static CBC_CommonDecoderResult* decodeCodewords(CFX_Int32Array &codewords, FX_INT32 ecLevel, CFX_Int32Array &erasures, FX_INT32 &e);
+    static FX_INT32 correctErrors(CFX_Int32Array &codewords, CFX_Int32Array &erasures, FX_INT32 numECCodewords, FX_INT32 &e);
+    static void verifyCodewordCount(CFX_Int32Array &codewords, FX_INT32 numECCodewords, FX_INT32 &e);
+    static CFX_Int32Array* getBitCountForCodeword(FX_INT32 codeword);
+    static FX_INT32 getCodewordBucketNumber(FX_INT32 codeword);
+    static FX_INT32 getCodewordBucketNumber(CFX_Int32Array& moduleBitCount);
+};
+#endif