85 lines
3.0 KiB
C
85 lines
3.0 KiB
C
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#ifndef __BIT_MATRIX_PARSER__PDF_H__
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#define __BIT_MATRIX_PARSER__PDF_H__
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/*
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* BitMatrixParser.h / PDF417
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* zxing
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*
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* Copyright 2010 ZXing authors All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <zxing/ReaderException.h>
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#include <zxing/FormatException.h>
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#include <zxing/common/BitMatrix.h>
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#include <zxing/common/Counted.h>
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#include <zxing/common/Array.h>
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#include <stdint.h>
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namespace zxing {
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namespace pdf417 {
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namespace decoder {
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class BitMatrixParser : public Counted {
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private:
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static const int MAX_ROWS;
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// Maximum Codewords (Data + Error)
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static const int MAX_CW_CAPACITY;
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static const int MODULES_IN_SYMBOL;
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Ref<BitMatrix> bitMatrix_;
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int rows_; /* = 0 */
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int leftColumnECData_; /* = 0 */
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int rightColumnECData_; /* = 0 */
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/* added 2012-06-22 HFN */
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int aLeftColumnTriple_[3];
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int aRightColumnTriple_[3];
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int eraseCount_; /* = 0 */
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ArrayRef<int> erasures_;
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int ecLevel_; /* = -1 */
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public:
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static const int SYMBOL_TABLE[];
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static const int SYMBOL_TABLE_LENGTH;
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static const int CODEWORD_TABLE[];
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public:
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BitMatrixParser(Ref<BitMatrix> bitMatrix);
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ArrayRef<int> getErasures() const { return erasures_; }
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int getECLevel() const { return ecLevel_; }
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int getEraseCount() const { return eraseCount_; }
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ArrayRef<int> readCodewords(); /* throw(FormatException) */
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static int getCodeword(int64_t symbol, int* pi = NULL);
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private:
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bool VerifyOuterColumns(int rownumber);
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static ArrayRef<int> trimArray(ArrayRef<int> array, int size);
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static int findCodewordIndex(int64_t symbol);
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int processRow(int rowNumber,
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ArrayRef<int> codewords, int next);
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int processRow(ArrayRef<int> rowCounters, int rowNumber, int rowHeight,
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ArrayRef<int> codewords, int next); /* throw(FormatException) */
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protected:
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bool IsEqual(int& a, int& b, int rownumber);
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};
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}
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}
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}
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#endif // __BIT_MATRIX_PARSER__PDF_H__
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