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authorBo Xu <bo_xu@foxitsoftware.com>2015-01-09 17:27:21 -0800
committerBo Xu <bo_xu@foxitsoftware.com>2015-01-09 17:27:21 -0800
commita902979f7c6a39fbdd8e9fc1b2ce00553b655eeb (patch)
tree854a51dbf1577ee8493db769ba7c8ab07cc72140 /xfa/src/fxbarcode/pdf417/BC_PDF417ScanningDecoder.h
parent5f21e9ddd181fc344f8d6070351858f98a25547e (diff)
downloadpdfium-a902979f7c6a39fbdd8e9fc1b2ce00553b655eeb.tar.xz
Organize barcode codes into modules.
Previously all the files in barcode are lumped together. The naming of some files are inconsistent, leading to difficult understanding of the structure. Now files are grouped based on different barcode type like in zxing. This also matches what it looks like in other xfa folders. The file names in each folder could be further modified to be consistent. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/842043002
Diffstat (limited to 'xfa/src/fxbarcode/pdf417/BC_PDF417ScanningDecoder.h')
-rw-r--r--xfa/src/fxbarcode/pdf417/BC_PDF417ScanningDecoder.h61
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