diff options
Diffstat (limited to 'xfa/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.cpp')
| -rw-r--r-- | xfa/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.cpp | 491 |
1 files changed, 0 insertions, 491 deletions
diff --git a/xfa/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.cpp b/xfa/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.cpp deleted file mode 100644 index 30632a494a..0000000000 --- a/xfa/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.cpp +++ /dev/null @@ -1,491 +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 2009 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/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.h" - -#include <stdlib.h> - -#include "third_party/bigint/BigIntegerLibrary.hh" -#include "xfa/fxbarcode/common/BC_CommonDecoderResult.h" -#include "xfa/fxbarcode/pdf417/BC_PDF417ResultMetadata.h" -#include "xfa/fxbarcode/utils.h" - -#define TEXT_COMPACTION_MODE_LATCH 900 -#define BYTE_COMPACTION_MODE_LATCH 901 -#define NUMERIC_COMPACTION_MODE_LATCH 902 -#define BYTE_COMPACTION_MODE_LATCH_6 924 -#define BEGIN_MACRO_PDF417_CONTROL_BLOCK 928 -#define BEGIN_MACRO_PDF417_OPTIONAL_FIELD 923 -#define MACRO_PDF417_TERMINATOR 922 -#define MODE_SHIFT_TO_BYTE_COMPACTION_MODE 913 - -int32_t CBC_DecodedBitStreamPaser::MAX_NUMERIC_CODEWORDS = 15; -int32_t CBC_DecodedBitStreamPaser::NUMBER_OF_SEQUENCE_CODEWORDS = 2; -int32_t CBC_DecodedBitStreamPaser::PL = 25; -int32_t CBC_DecodedBitStreamPaser::LL = 27; -int32_t CBC_DecodedBitStreamPaser::AS = 27; -int32_t CBC_DecodedBitStreamPaser::ML = 28; -int32_t CBC_DecodedBitStreamPaser::AL = 28; -int32_t CBC_DecodedBitStreamPaser::PS = 29; -int32_t CBC_DecodedBitStreamPaser::PAL = 29; -FX_CHAR CBC_DecodedBitStreamPaser::PUNCT_CHARS[29] = { - ';', '<', '>', '@', '[', '\\', '}', '_', '`', '~', - '!', '\r', '\t', ',', ':', '\n', '-', '.', '$', '/', - '"', '|', '*', '(', ')', '?', '{', '}', '\''}; -FX_CHAR CBC_DecodedBitStreamPaser::MIXED_CHARS[30] = { - '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '&', '\r', '\t', - ',', ':', '#', '-', '.', '$', '/', '+', '%', '*', '=', '^'}; - -void CBC_DecodedBitStreamPaser::Initialize() {} -void CBC_DecodedBitStreamPaser::Finalize() {} -CBC_DecodedBitStreamPaser::CBC_DecodedBitStreamPaser() {} -CBC_DecodedBitStreamPaser::~CBC_DecodedBitStreamPaser() {} -CBC_CommonDecoderResult* CBC_DecodedBitStreamPaser::decode( - CFX_Int32Array& codewords, - CFX_ByteString ecLevel, - int32_t& e) { - CFX_ByteString result; - int32_t codeIndex = 1; - int32_t code = codewords.GetAt(codeIndex); - codeIndex++; - CBC_PDF417ResultMetadata* resultMetadata = new CBC_PDF417ResultMetadata; - while (codeIndex < codewords[0]) { - switch (code) { - case TEXT_COMPACTION_MODE_LATCH: - codeIndex = textCompaction(codewords, codeIndex, result); - break; - case BYTE_COMPACTION_MODE_LATCH: - codeIndex = byteCompaction(code, codewords, codeIndex, result); - break; - case NUMERIC_COMPACTION_MODE_LATCH: - codeIndex = numericCompaction(codewords, codeIndex, result, e); - BC_EXCEPTION_CHECK_ReturnValue(e, nullptr); - break; - case MODE_SHIFT_TO_BYTE_COMPACTION_MODE: - codeIndex = byteCompaction(code, codewords, codeIndex, result); - break; - case BYTE_COMPACTION_MODE_LATCH_6: - codeIndex = byteCompaction(code, codewords, codeIndex, result); - break; - case BEGIN_MACRO_PDF417_CONTROL_BLOCK: - codeIndex = decodeMacroBlock(codewords, codeIndex, resultMetadata, e); - if (e != BCExceptionNO) { - delete resultMetadata; - return nullptr; - } - break; - default: - codeIndex--; - codeIndex = textCompaction(codewords, codeIndex, result); - break; - } - if (codeIndex < codewords.GetSize()) { - code = codewords[codeIndex++]; - } else { - e = BCExceptionFormatInstance; - delete resultMetadata; - return nullptr; - } - } - if (result.GetLength() == 0) { - e = BCExceptionFormatInstance; - delete resultMetadata; - return nullptr; - } - CFX_ByteArray rawBytes; - CBC_CommonDecoderResult* tempCd = new CBC_CommonDecoderResult(); - tempCd->Init(rawBytes, result, ecLevel, e); - if (e != BCExceptionNO) { - delete resultMetadata; - return nullptr; - } - tempCd->setOther(resultMetadata); - return tempCd; -} -int32_t CBC_DecodedBitStreamPaser::decodeMacroBlock( - CFX_Int32Array& codewords, - int32_t codeIndex, - CBC_PDF417ResultMetadata* resultMetadata, - int32_t& e) { - if (codeIndex + NUMBER_OF_SEQUENCE_CODEWORDS > codewords[0]) { - e = BCExceptionFormatInstance; - return -1; - } - CFX_Int32Array segmentIndexArray; - segmentIndexArray.SetSize(NUMBER_OF_SEQUENCE_CODEWORDS); - for (int32_t i = 0; i < NUMBER_OF_SEQUENCE_CODEWORDS; i++, codeIndex++) { - segmentIndexArray.SetAt(i, codewords[codeIndex]); - } - CFX_ByteString str = - decodeBase900toBase10(segmentIndexArray, NUMBER_OF_SEQUENCE_CODEWORDS, e); - BC_EXCEPTION_CHECK_ReturnValue(e, -1); - resultMetadata->setSegmentIndex(atoi(str.GetBuffer(str.GetLength()))); - CFX_ByteString fileId; - codeIndex = textCompaction(codewords, codeIndex, fileId); - resultMetadata->setFileId(fileId); - if (codewords[codeIndex] == BEGIN_MACRO_PDF417_OPTIONAL_FIELD) { - codeIndex++; - CFX_Int32Array additionalOptionCodeWords; - additionalOptionCodeWords.SetSize(codewords[0] - codeIndex); - int32_t additionalOptionCodeWordsIndex = 0; - FX_BOOL end = FALSE; - while ((codeIndex < codewords[0]) && !end) { - int32_t code = codewords[codeIndex++]; - if (code < TEXT_COMPACTION_MODE_LATCH) { - additionalOptionCodeWords[additionalOptionCodeWordsIndex++] = code; - } else { - switch (code) { - case MACRO_PDF417_TERMINATOR: - resultMetadata->setLastSegment(TRUE); - codeIndex++; - end = TRUE; - break; - default: - e = BCExceptionFormatInstance; - return -1; - } - } - } - CFX_Int32Array array; - array.SetSize(additionalOptionCodeWordsIndex); - array.Copy(additionalOptionCodeWords); - resultMetadata->setOptionalData(array); - } else if (codewords[codeIndex] == MACRO_PDF417_TERMINATOR) { - resultMetadata->setLastSegment(TRUE); - codeIndex++; - } - return codeIndex; -} -int32_t CBC_DecodedBitStreamPaser::textCompaction(CFX_Int32Array& codewords, - int32_t codeIndex, - CFX_ByteString& result) { - CFX_Int32Array textCompactionData; - textCompactionData.SetSize((codewords[0] - codeIndex) << 1); - CFX_Int32Array byteCompactionData; - byteCompactionData.SetSize((codewords[0] - codeIndex) << 1); - int32_t index = 0; - FX_BOOL end = FALSE; - while ((codeIndex < codewords[0]) && !end) { - int32_t code = codewords[codeIndex++]; - if (code < TEXT_COMPACTION_MODE_LATCH) { - textCompactionData[index] = code / 30; - textCompactionData[index + 1] = code % 30; - index += 2; - } else { - switch (code) { - case TEXT_COMPACTION_MODE_LATCH: - textCompactionData[index++] = TEXT_COMPACTION_MODE_LATCH; - break; - case BYTE_COMPACTION_MODE_LATCH: - codeIndex--; - end = TRUE; - break; - case NUMERIC_COMPACTION_MODE_LATCH: - codeIndex--; - end = TRUE; - break; - case BEGIN_MACRO_PDF417_CONTROL_BLOCK: - codeIndex--; - end = TRUE; - break; - case BEGIN_MACRO_PDF417_OPTIONAL_FIELD: - codeIndex--; - end = TRUE; - break; - case MACRO_PDF417_TERMINATOR: - codeIndex--; - end = TRUE; - break; - case MODE_SHIFT_TO_BYTE_COMPACTION_MODE: - textCompactionData[index] = MODE_SHIFT_TO_BYTE_COMPACTION_MODE; - code = codewords[codeIndex++]; - byteCompactionData[index] = code; - index++; - break; - case BYTE_COMPACTION_MODE_LATCH_6: - codeIndex--; - end = TRUE; - break; - } - } - } - decodeTextCompaction(textCompactionData, byteCompactionData, index, result); - return codeIndex; -} -void CBC_DecodedBitStreamPaser::decodeTextCompaction( - CFX_Int32Array& textCompactionData, - CFX_Int32Array& byteCompactionData, - int32_t length, - CFX_ByteString& result) { - Mode subMode = ALPHA; - Mode priorToShiftMode = ALPHA; - int32_t i = 0; - while (i < length) { - int32_t subModeCh = textCompactionData[i]; - FX_CHAR ch = 0; - switch (subMode) { - case ALPHA: - if (subModeCh < 26) { - ch = (FX_CHAR)('A' + subModeCh); - } else { - if (subModeCh == 26) { - ch = ' '; - } else if (subModeCh == LL) { - subMode = LOWER; - } else if (subModeCh == ML) { - subMode = MIXED; - } else if (subModeCh == PS) { - priorToShiftMode = subMode; - subMode = PUNCT_SHIFT; - } else if (subModeCh == MODE_SHIFT_TO_BYTE_COMPACTION_MODE) { - result += (FX_CHAR)byteCompactionData[i]; - } else if (subModeCh == TEXT_COMPACTION_MODE_LATCH) { - subMode = ALPHA; - } - } - break; - case LOWER: - if (subModeCh < 26) { - ch = (FX_CHAR)('a' + subModeCh); - } else { - if (subModeCh == 26) { - ch = ' '; - } else if (subModeCh == AS) { - priorToShiftMode = subMode; - subMode = ALPHA_SHIFT; - } else if (subModeCh == ML) { - subMode = MIXED; - } else if (subModeCh == PS) { - priorToShiftMode = subMode; - subMode = PUNCT_SHIFT; - } else if (subModeCh == MODE_SHIFT_TO_BYTE_COMPACTION_MODE) { - result += (FX_CHAR)byteCompactionData[i]; - } else if (subModeCh == TEXT_COMPACTION_MODE_LATCH) { - subMode = ALPHA; - } - } - break; - case MIXED: - if (subModeCh < PL) { - ch = MIXED_CHARS[subModeCh]; - } else { - if (subModeCh == PL) { - subMode = PUNCT; - } else if (subModeCh == 26) { - ch = ' '; - } else if (subModeCh == LL) { - subMode = LOWER; - } else if (subModeCh == AL) { - subMode = ALPHA; - } else if (subModeCh == PS) { - priorToShiftMode = subMode; - subMode = PUNCT_SHIFT; - } else if (subModeCh == MODE_SHIFT_TO_BYTE_COMPACTION_MODE) { - result += (FX_CHAR)byteCompactionData[i]; - } else if (subModeCh == TEXT_COMPACTION_MODE_LATCH) { - subMode = ALPHA; - } - } - break; - case PUNCT: - if (subModeCh < PAL) { - ch = PUNCT_CHARS[subModeCh]; - } else { - if (subModeCh == PAL) { - subMode = ALPHA; - } else if (subModeCh == MODE_SHIFT_TO_BYTE_COMPACTION_MODE) { - result += (FX_CHAR)byteCompactionData[i]; - } else if (subModeCh == TEXT_COMPACTION_MODE_LATCH) { - subMode = ALPHA; - } - } - break; - case ALPHA_SHIFT: - subMode = priorToShiftMode; - if (subModeCh < 26) { - ch = (FX_CHAR)('A' + subModeCh); - } else { - if (subModeCh == 26) { - ch = ' '; - } else if (subModeCh == TEXT_COMPACTION_MODE_LATCH) { - subMode = ALPHA; - } - } - break; - case PUNCT_SHIFT: - subMode = priorToShiftMode; - if (subModeCh < PAL) { - ch = PUNCT_CHARS[subModeCh]; - } else { - if (subModeCh == PAL) { - subMode = ALPHA; - } else if (subModeCh == MODE_SHIFT_TO_BYTE_COMPACTION_MODE) { - result += (FX_CHAR)byteCompactionData[i]; - } else if (subModeCh == TEXT_COMPACTION_MODE_LATCH) { - subMode = ALPHA; - } - } - break; - } - if (ch != 0) { - result += ch; - } - i++; - } -} -int32_t CBC_DecodedBitStreamPaser::byteCompaction(int32_t mode, - CFX_Int32Array& codewords, - int32_t codeIndex, - CFX_ByteString& result) { - if (mode == BYTE_COMPACTION_MODE_LATCH) { - int32_t count = 0; - int64_t value = 0; - uint16_t* decodedData = FX_Alloc(uint16_t, 6); - CFX_Int32Array byteCompactedCodewords; - byteCompactedCodewords.SetSize(6); - FX_BOOL end = FALSE; - int32_t nextCode = codewords[codeIndex++]; - while ((codeIndex < codewords[0]) && !end) { - byteCompactedCodewords[count++] = nextCode; - value = 900 * value + nextCode; - nextCode = codewords[codeIndex++]; - if (nextCode == TEXT_COMPACTION_MODE_LATCH || - nextCode == BYTE_COMPACTION_MODE_LATCH || - nextCode == NUMERIC_COMPACTION_MODE_LATCH || - nextCode == BYTE_COMPACTION_MODE_LATCH_6 || - nextCode == BEGIN_MACRO_PDF417_CONTROL_BLOCK || - nextCode == BEGIN_MACRO_PDF417_OPTIONAL_FIELD || - nextCode == MACRO_PDF417_TERMINATOR) { - codeIndex--; - end = TRUE; - } else { - if ((count % 5 == 0) && (count > 0)) { - int32_t j = 0; - for (; j < 6; ++j) { - decodedData[5 - j] = (uint16_t)(value % 256); - value >>= 8; - } - for (j = 0; j < 6; ++j) { - result += (FX_CHAR)decodedData[j]; - } - count = 0; - } - } - } - FX_Free(decodedData); - if (codeIndex == codewords[0] && nextCode < TEXT_COMPACTION_MODE_LATCH) { - byteCompactedCodewords[count++] = nextCode; - } - for (int32_t i = 0; i < count; i++) { - result += (FX_CHAR)(uint16_t)byteCompactedCodewords[i]; - } - } else if (mode == BYTE_COMPACTION_MODE_LATCH_6) { - int32_t count = 0; - int64_t value = 0; - FX_BOOL end = FALSE; - while (codeIndex < codewords[0] && !end) { - int32_t code = codewords[codeIndex++]; - if (code < TEXT_COMPACTION_MODE_LATCH) { - count++; - value = 900 * value + code; - } else { - if (code == TEXT_COMPACTION_MODE_LATCH || - code == BYTE_COMPACTION_MODE_LATCH || - code == NUMERIC_COMPACTION_MODE_LATCH || - code == BYTE_COMPACTION_MODE_LATCH_6 || - code == BEGIN_MACRO_PDF417_CONTROL_BLOCK || - code == BEGIN_MACRO_PDF417_OPTIONAL_FIELD || - code == MACRO_PDF417_TERMINATOR) { - codeIndex--; - end = TRUE; - } - } - if ((count % 5 == 0) && (count > 0)) { - uint16_t* decodedData = FX_Alloc(uint16_t, 6); - int32_t j = 0; - for (; j < 6; ++j) { - decodedData[5 - j] = (uint16_t)(value & 0xFF); - value >>= 8; - } - for (j = 0; j < 6; ++j) { - result += (FX_CHAR)decodedData[j]; - } - count = 0; - FX_Free(decodedData); - } - } - } - return codeIndex; -} -int32_t CBC_DecodedBitStreamPaser::numericCompaction(CFX_Int32Array& codewords, - int32_t codeIndex, - CFX_ByteString& result, - int32_t& e) { - int32_t count = 0; - FX_BOOL end = FALSE; - CFX_Int32Array numericCodewords; - numericCodewords.SetSize(MAX_NUMERIC_CODEWORDS); - while (codeIndex < codewords[0] && !end) { - int32_t code = codewords[codeIndex++]; - if (codeIndex == codewords[0]) { - end = TRUE; - } - if (code < TEXT_COMPACTION_MODE_LATCH) { - numericCodewords[count] = code; - count++; - } else { - if (code == TEXT_COMPACTION_MODE_LATCH || - code == BYTE_COMPACTION_MODE_LATCH || - code == BYTE_COMPACTION_MODE_LATCH_6 || - code == BEGIN_MACRO_PDF417_CONTROL_BLOCK || - code == BEGIN_MACRO_PDF417_OPTIONAL_FIELD || - code == MACRO_PDF417_TERMINATOR) { - codeIndex--; - end = TRUE; - } - } - if (count % MAX_NUMERIC_CODEWORDS == 0 || - code == NUMERIC_COMPACTION_MODE_LATCH || end) { - CFX_ByteString s = decodeBase900toBase10(numericCodewords, count, e); - BC_EXCEPTION_CHECK_ReturnValue(e, -1); - result += s; - count = 0; - } - } - return codeIndex; -} -CFX_ByteString CBC_DecodedBitStreamPaser::decodeBase900toBase10( - CFX_Int32Array& codewords, - int32_t count, - int32_t& e) { - BigInteger result = 0; - BigInteger nineHundred(900); - for (int32_t i = 0; i < count; i++) { - result = result * nineHundred + BigInteger(codewords[i]); - } - CFX_ByteString resultString(bigIntegerToString(result).c_str()); - if (resultString.GetAt(0) != '1') { - e = BCExceptionFormatInstance; - return ' '; - } - return resultString.Mid(1, resultString.GetLength() - 1); -} |