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Unified Diff: xfa/src/fxbarcode/src/BC_PDF417DecodedBitStreamParser.cpp

Issue 842043002: Organize barcode codes into modules. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa
Patch Set: rebase Created 5 years, 11 months ago
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Index: xfa/src/fxbarcode/src/BC_PDF417DecodedBitStreamParser.cpp
diff --git a/xfa/src/fxbarcode/src/BC_PDF417DecodedBitStreamParser.cpp b/xfa/src/fxbarcode/src/BC_PDF417DecodedBitStreamParser.cpp
deleted file mode 100644
index e3583bcddcd7e93a06252deb0b219173a732bca8..0000000000000000000000000000000000000000
--- a/xfa/src/fxbarcode/src/BC_PDF417DecodedBitStreamParser.cpp
+++ /dev/null
@@ -1,485 +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 <stdlib.h>
-#include "barcode.h"
-#include "include/BC_DecoderResult.h"
-#include "include/BC_PDF417ResultMetadata.h"
-#include "include/BC_CommonDecoderResult.h"
-#include "include/BC_PDF417DecodedBitStreamParser.h"
-#include "../../../../third_party/bigint/BigIntegerLibrary.hh"
-#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
-
-FX_INT32 CBC_DecodedBitStreamPaser::MAX_NUMERIC_CODEWORDS = 15;
-FX_INT32 CBC_DecodedBitStreamPaser::NUMBER_OF_SEQUENCE_CODEWORDS = 2;
-FX_INT32 CBC_DecodedBitStreamPaser::PL = 25;
-FX_INT32 CBC_DecodedBitStreamPaser::LL = 27;
-FX_INT32 CBC_DecodedBitStreamPaser::AS = 27;
-FX_INT32 CBC_DecodedBitStreamPaser::ML = 28;
-FX_INT32 CBC_DecodedBitStreamPaser::AL = 28;
-FX_INT32 CBC_DecodedBitStreamPaser::PS = 29;
-FX_INT32 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, FX_INT32 &e)
-{
- CFX_ByteString result;
- FX_INT32 codeIndex = 1;
- FX_INT32 code = codewords.GetAt(codeIndex);
- codeIndex++;
- CBC_PDF417ResultMetadata* resultMetadata = FX_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, NULL);
- 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 NULL;
- }
- break;
- default:
- codeIndex--;
- codeIndex = textCompaction(codewords, codeIndex, result);
- break;
- }
- if (codeIndex < codewords.GetSize()) {
- code = codewords[codeIndex++];
- } else {
- e = BCExceptionFormatInstance;
- delete resultMetadata;
- return NULL;
- }
- }
- if (result.GetLength() == 0) {
- e = BCExceptionFormatInstance;
- delete resultMetadata;
- return NULL;
- }
- CFX_ByteArray rawBytes;
- CFX_PtrArray byteSegments;
- CBC_CommonDecoderResult *tempCd = FX_NEW CBC_CommonDecoderResult();
- tempCd->Init(rawBytes, result, byteSegments, ecLevel, e);
- if (e != BCExceptionNO) {
- delete resultMetadata;
- return NULL;
- }
- tempCd->setOther(resultMetadata);
- return tempCd;
-}
-FX_INT32 CBC_DecodedBitStreamPaser::decodeMacroBlock(CFX_Int32Array &codewords, FX_INT32 codeIndex, CBC_PDF417ResultMetadata* resultMetadata, FX_INT32 &e)
-{
- if (codeIndex + NUMBER_OF_SEQUENCE_CODEWORDS > codewords[0]) {
- e = BCExceptionFormatInstance;
- return -1;
- }
- CFX_Int32Array segmentIndexArray;
- segmentIndexArray.SetSize(NUMBER_OF_SEQUENCE_CODEWORDS);
- for (FX_INT32 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);
- FX_INT32 additionalOptionCodeWordsIndex = 0;
- FX_BOOL end = FALSE;
- while ((codeIndex < codewords[0]) && !end) {
- FX_INT32 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;
-}
-FX_INT32 CBC_DecodedBitStreamPaser::textCompaction(CFX_Int32Array &codewords, FX_INT32 codeIndex, CFX_ByteString &result)
-{
- CFX_Int32Array textCompactionData;
- textCompactionData.SetSize((codewords[0] - codeIndex) << 1);
- CFX_Int32Array byteCompactionData;
- byteCompactionData.SetSize((codewords[0] - codeIndex) << 1);
- FX_INT32 index = 0;
- FX_BOOL end = FALSE;
- while ((codeIndex < codewords[0]) && !end) {
- FX_INT32 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, FX_INT32 length, CFX_ByteString &result)
-{
- Mode subMode = ALPHA;
- Mode priorToShiftMode = ALPHA;
- FX_INT32 i = 0;
- while (i < length) {
- FX_INT32 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++;
- }
-}
-FX_INT32 CBC_DecodedBitStreamPaser::byteCompaction(FX_INT32 mode, CFX_Int32Array &codewords, FX_INT32 codeIndex, CFX_ByteString &result)
-{
- if (mode == BYTE_COMPACTION_MODE_LATCH) {
- FX_INT32 count = 0;
- FX_INT64 value = 0;
- FX_WORD* decodedData = FX_Alloc(FX_WORD, 6 * sizeof(FX_WORD));
- CFX_Int32Array byteCompactedCodewords;
- byteCompactedCodewords.SetSize(6);
- FX_BOOL end = FALSE;
- FX_INT32 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)) {
- FX_INT32 j = 0;
- for (; j < 6; ++j) {
- decodedData[5 - j] = (FX_WORD) (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 (FX_INT32 i = 0; i < count; i++) {
- result += (FX_CHAR)(FX_WORD) byteCompactedCodewords[i];
- }
- } else if (mode == BYTE_COMPACTION_MODE_LATCH_6) {
- FX_INT32 count = 0;
- FX_INT64 value = 0;
- FX_BOOL end = FALSE;
- while (codeIndex < codewords[0] && !end) {
- FX_INT32 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)) {
- FX_WORD* decodedData = FX_Alloc(FX_WORD, 6 * sizeof(FX_WORD));
- FX_INT32 j = 0;
- for (; j < 6; ++j) {
- decodedData[5 - j] = (FX_WORD) (value & 0xFF);
- value >>= 8;
- }
- for (j = 0; j < 6; ++j) {
- result += (FX_CHAR)decodedData[j];
- }
- count = 0;
- FX_Free(decodedData);
- }
- }
- }
- return codeIndex;
-}
-FX_INT32 CBC_DecodedBitStreamPaser::numericCompaction(CFX_Int32Array &codewords, FX_INT32 codeIndex, CFX_ByteString &result, FX_INT32 &e)
-{
- FX_INT32 count = 0;
- FX_BOOL end = FALSE;
- CFX_Int32Array numericCodewords;
- numericCodewords.SetSize(MAX_NUMERIC_CODEWORDS);
- while (codeIndex < codewords[0] && !end) {
- FX_INT32 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, FX_INT32 count, FX_INT32 &e)
-{
- BigInteger result = 0;
- BigInteger nineHundred(900);
- for (FX_INT32 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);
-}
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