diff options
Diffstat (limited to 'xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp | 430 |
1 files changed, 430 insertions, 0 deletions
diff --git a/xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp b/xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp new file mode 100644 index 0000000000..9dd9f629cf --- /dev/null +++ b/xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp @@ -0,0 +1,430 @@ +// 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 2008 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 "../barcode.h"
+#include "../BC_Reader.h"
+#include "../common/BC_CommonBitArray.h"
+#include "BC_OneDReader.h"
+#include "BC_OnedCode128Reader.h"
+const FX_INT32 CBC_OnedCode128Reader::CODE_PATTERNS[107][7] = {
+ {2, 1, 2, 2, 2, 2, 0},
+ {2, 2, 2, 1, 2, 2, 0},
+ {2, 2, 2, 2, 2, 1, 0},
+ {1, 2, 1, 2, 2, 3, 0},
+ {1, 2, 1, 3, 2, 2, 0},
+ {1, 3, 1, 2, 2, 2, 0},
+ {1, 2, 2, 2, 1, 3, 0},
+ {1, 2, 2, 3, 1, 2, 0},
+ {1, 3, 2, 2, 1, 2, 0},
+ {2, 2, 1, 2, 1, 3, 0},
+ {2, 2, 1, 3, 1, 2, 0},
+ {2, 3, 1, 2, 1, 2, 0},
+ {1, 1, 2, 2, 3, 2, 0},
+ {1, 2, 2, 1, 3, 2, 0},
+ {1, 2, 2, 2, 3, 1, 0},
+ {1, 1, 3, 2, 2, 2, 0},
+ {1, 2, 3, 1, 2, 2, 0},
+ {1, 2, 3, 2, 2, 1, 0},
+ {2, 2, 3, 2, 1, 1, 0},
+ {2, 2, 1, 1, 3, 2, 0},
+ {2, 2, 1, 2, 3, 1, 0},
+ {2, 1, 3, 2, 1, 2, 0},
+ {2, 2, 3, 1, 1, 2, 0},
+ {3, 1, 2, 1, 3, 1, 0},
+ {3, 1, 1, 2, 2, 2, 0},
+ {3, 2, 1, 1, 2, 2, 0},
+ {3, 2, 1, 2, 2, 1, 0},
+ {3, 1, 2, 2, 1, 2, 0},
+ {3, 2, 2, 1, 1, 2, 0},
+ {3, 2, 2, 2, 1, 1, 0},
+ {2, 1, 2, 1, 2, 3, 0},
+ {2, 1, 2, 3, 2, 1, 0},
+ {2, 3, 2, 1, 2, 1, 0},
+ {1, 1, 1, 3, 2, 3, 0},
+ {1, 3, 1, 1, 2, 3, 0},
+ {1, 3, 1, 3, 2, 1, 0},
+ {1, 1, 2, 3, 1, 3, 0},
+ {1, 3, 2, 1, 1, 3, 0},
+ {1, 3, 2, 3, 1, 1, 0},
+ {2, 1, 1, 3, 1, 3, 0},
+ {2, 3, 1, 1, 1, 3, 0},
+ {2, 3, 1, 3, 1, 1, 0},
+ {1, 1, 2, 1, 3, 3, 0},
+ {1, 1, 2, 3, 3, 1, 0},
+ {1, 3, 2, 1, 3, 1, 0},
+ {1, 1, 3, 1, 2, 3, 0},
+ {1, 1, 3, 3, 2, 1, 0},
+ {1, 3, 3, 1, 2, 1, 0},
+ {3, 1, 3, 1, 2, 1, 0},
+ {2, 1, 1, 3, 3, 1, 0},
+ {2, 3, 1, 1, 3, 1, 0},
+ {2, 1, 3, 1, 1, 3, 0},
+ {2, 1, 3, 3, 1, 1, 0},
+ {2, 1, 3, 1, 3, 1, 0},
+ {3, 1, 1, 1, 2, 3, 0},
+ {3, 1, 1, 3, 2, 1, 0},
+ {3, 3, 1, 1, 2, 1, 0},
+ {3, 1, 2, 1, 1, 3, 0},
+ {3, 1, 2, 3, 1, 1, 0},
+ {3, 3, 2, 1, 1, 1, 0},
+ {3, 1, 4, 1, 1, 1, 0},
+ {2, 2, 1, 4, 1, 1, 0},
+ {4, 3, 1, 1, 1, 1, 0},
+ {1, 1, 1, 2, 2, 4, 0},
+ {1, 1, 1, 4, 2, 2, 0},
+ {1, 2, 1, 1, 2, 4, 0},
+ {1, 2, 1, 4, 2, 1, 0},
+ {1, 4, 1, 1, 2, 2, 0},
+ {1, 4, 1, 2, 2, 1, 0},
+ {1, 1, 2, 2, 1, 4, 0},
+ {1, 1, 2, 4, 1, 2, 0},
+ {1, 2, 2, 1, 1, 4, 0},
+ {1, 2, 2, 4, 1, 1, 0},
+ {1, 4, 2, 1, 1, 2, 0},
+ {1, 4, 2, 2, 1, 1, 0},
+ {2, 4, 1, 2, 1, 1, 0},
+ {2, 2, 1, 1, 1, 4, 0},
+ {4, 1, 3, 1, 1, 1, 0},
+ {2, 4, 1, 1, 1, 2, 0},
+ {1, 3, 4, 1, 1, 1, 0},
+ {1, 1, 1, 2, 4, 2, 0},
+ {1, 2, 1, 1, 4, 2, 0},
+ {1, 2, 1, 2, 4, 1, 0},
+ {1, 1, 4, 2, 1, 2, 0},
+ {1, 2, 4, 1, 1, 2, 0},
+ {1, 2, 4, 2, 1, 1, 0},
+ {4, 1, 1, 2, 1, 2, 0},
+ {4, 2, 1, 1, 1, 2, 0},
+ {4, 2, 1, 2, 1, 1, 0},
+ {2, 1, 2, 1, 4, 1, 0},
+ {2, 1, 4, 1, 2, 1, 0},
+ {4, 1, 2, 1, 2, 1, 0},
+ {1, 1, 1, 1, 4, 3, 0},
+ {1, 1, 1, 3, 4, 1, 0},
+ {1, 3, 1, 1, 4, 1, 0},
+ {1, 1, 4, 1, 1, 3, 0},
+ {1, 1, 4, 3, 1, 1, 0},
+ {4, 1, 1, 1, 1, 3, 0},
+ {4, 1, 1, 3, 1, 1, 0},
+ {1, 1, 3, 1, 4, 1, 0},
+ {1, 1, 4, 1, 3, 1, 0},
+ {3, 1, 1, 1, 4, 1, 0},
+ {4, 1, 1, 1, 3, 1, 0},
+ {2, 1, 1, 4, 1, 2, 0},
+ {2, 1, 1, 2, 1, 4, 0},
+ {2, 1, 1, 2, 3, 2, 0},
+ {2, 3, 3, 1, 1, 1, 2}
+};
+const FX_INT32 CBC_OnedCode128Reader::MAX_AVG_VARIANCE = (FX_INT32) (256 * 0.25f);
+const FX_INT32 CBC_OnedCode128Reader::MAX_INDIVIDUAL_VARIANCE = (FX_INT32) (256 * 0.7f);
+const FX_INT32 CBC_OnedCode128Reader::CODE_SHIFT = 98;
+const FX_INT32 CBC_OnedCode128Reader::CODE_CODE_C = 99;
+const FX_INT32 CBC_OnedCode128Reader::CODE_CODE_B = 100;
+const FX_INT32 CBC_OnedCode128Reader::CODE_CODE_A = 101;
+const FX_INT32 CBC_OnedCode128Reader::CODE_FNC_1 = 102;
+const FX_INT32 CBC_OnedCode128Reader::CODE_FNC_2 = 97;
+const FX_INT32 CBC_OnedCode128Reader::CODE_FNC_3 = 96;
+const FX_INT32 CBC_OnedCode128Reader::CODE_FNC_4_A = 101;
+const FX_INT32 CBC_OnedCode128Reader::CODE_FNC_4_B = 100;
+const FX_INT32 CBC_OnedCode128Reader::CODE_START_A = 103;
+const FX_INT32 CBC_OnedCode128Reader::CODE_START_B = 104;
+const FX_INT32 CBC_OnedCode128Reader::CODE_START_C = 105;
+const FX_INT32 CBC_OnedCode128Reader::CODE_STOP = 106;
+CBC_OnedCode128Reader::CBC_OnedCode128Reader()
+{
+}
+CBC_OnedCode128Reader::~CBC_OnedCode128Reader()
+{
+}
+CFX_Int32Array *CBC_OnedCode128Reader::FindStartPattern(CBC_CommonBitArray *row, FX_INT32 &e)
+{
+ FX_INT32 width = row->GetSize();
+ FX_INT32 rowOffset = 0;
+ while (rowOffset < width) {
+ if (row->Get(rowOffset)) {
+ break;
+ }
+ rowOffset++;
+ }
+ FX_INT32 counterPosition = 0;
+ CFX_Int32Array counters;
+ counters.SetSize(6);
+ FX_INT32 patternStart = rowOffset;
+ FX_BOOL isWhite = FALSE;
+ FX_INT32 patternLength = counters.GetSize();
+ for (FX_INT32 i = rowOffset; i < width; i++) {
+ FX_BOOL pixel = row->Get(i);
+ if (pixel ^ isWhite) {
+ counters[counterPosition]++;
+ } else {
+ if (counterPosition == patternLength - 1) {
+ FX_INT32 bestVariance = MAX_AVG_VARIANCE;
+ FX_INT32 bestMatch = -1;
+ for (FX_INT32 startCode = CODE_START_A; startCode <= CODE_START_C; startCode++) {
+ FX_INT32 variance = PatternMatchVariance(&counters, &CODE_PATTERNS[startCode][0], MAX_INDIVIDUAL_VARIANCE);
+ if (variance < bestVariance) {
+ bestVariance = variance;
+ bestMatch = startCode;
+ }
+ }
+ if (bestMatch >= 0) {
+ FX_BOOL btemp2 = row->IsRange(FX_MAX(0, patternStart - (i - patternStart) / 2), patternStart, FALSE, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ if (btemp2) {
+ CFX_Int32Array *result = FX_NEW CFX_Int32Array;
+ result->SetSize(3);
+ (*result)[0] = patternStart;
+ (*result)[1] = i;
+ (*result)[2] = bestMatch;
+ return result;
+ }
+ }
+ patternStart += counters[0] + counters[1];
+ for (FX_INT32 y = 2; y < patternLength; y++) {
+ counters[y - 2] = counters[y];
+ }
+ counters[patternLength - 2] = 0;
+ counters[patternLength - 1] = 0;
+ counterPosition--;
+ } else {
+ counterPosition++;
+ }
+ counters[counterPosition] = 1;
+ isWhite = !isWhite;
+ }
+ }
+ e = BCExceptionNotFound;
+ return NULL;
+}
+FX_INT32 CBC_OnedCode128Reader::DecodeCode(CBC_CommonBitArray *row, CFX_Int32Array *counters, FX_INT32 rowOffset, FX_INT32 &e)
+{
+ RecordPattern(row, rowOffset, counters, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+ FX_INT32 bestVariance = MAX_AVG_VARIANCE;
+ FX_INT32 bestMatch = -1;
+ for (FX_INT32 d = 0; d < 107; d++) {
+ FX_INT32 variance = PatternMatchVariance(counters, &CODE_PATTERNS[d][0], MAX_INDIVIDUAL_VARIANCE);
+ if (variance < bestVariance) {
+ bestVariance = variance;
+ bestMatch = d;
+ }
+ }
+ if (bestMatch >= 0) {
+ return bestMatch;
+ } else {
+ e = BCExceptionNotFound;
+ return 0;
+ }
+ return 0;
+}
+CFX_ByteString CBC_OnedCode128Reader::DecodeRow(FX_INT32 rowNumber, CBC_CommonBitArray *row, FX_INT32 hints, FX_INT32 &e)
+{
+ CFX_Int32Array *startPatternInfo = FindStartPattern(row, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, "");
+ FX_INT32 startCode = (*startPatternInfo)[2];
+ FX_INT32 codeSet;
+ switch (startCode) {
+ case 103:
+ codeSet = CODE_CODE_A;
+ break;
+ case 104:
+ codeSet = CODE_CODE_B;
+ break;
+ case 105:
+ codeSet = CODE_CODE_C;
+ break;
+ default:
+ if(startPatternInfo != NULL) {
+ startPatternInfo->RemoveAll();
+ delete startPatternInfo;
+ startPatternInfo = NULL;
+ }
+ e = BCExceptionFormatException;
+ return "";
+ }
+ FX_BOOL done = FALSE;
+ FX_BOOL isNextShifted = FALSE;
+ CFX_ByteString result;
+ FX_INT32 lastStart = (*startPatternInfo)[0];
+ FX_INT32 nextStart = (*startPatternInfo)[1];
+ if(startPatternInfo != NULL) {
+ startPatternInfo->RemoveAll();
+ delete startPatternInfo;
+ startPatternInfo = NULL;
+ }
+ CFX_Int32Array counters;
+ counters.SetSize(6);
+ FX_INT32 lastCode = 0;
+ FX_INT32 code = 0;
+ FX_INT32 checksumTotal = startCode;
+ FX_INT32 multiplier = 0;
+ FX_BOOL lastCharacterWasPrintable = TRUE;
+ while (!done) {
+ FX_BOOL unshift = isNextShifted;
+ isNextShifted = FALSE;
+ lastCode = code;
+ code = DecodeCode(row, &counters, nextStart, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, "");
+ if (code != CODE_STOP) {
+ lastCharacterWasPrintable = TRUE;
+ }
+ if (code != CODE_STOP) {
+ multiplier++;
+ checksumTotal += multiplier * code;
+ }
+ lastStart = nextStart;
+ for (FX_INT32 i = 0; i < counters.GetSize(); i++) {
+ nextStart += counters[i];
+ }
+ switch (code) {
+ case 103:
+ case 104:
+ case 105:
+ e = BCExceptionFormatException;
+ return "";
+ }
+ switch (codeSet) {
+ case 101:
+ if (code < 64) {
+ result += (FX_CHAR) (' ' + code);
+ } else if (code < 96) {
+ result += (FX_CHAR) (code - 64);
+ } else {
+ if (code != CODE_STOP) {
+ lastCharacterWasPrintable = FALSE;
+ }
+ switch (code) {
+ case 102:
+ case 97:
+ case 96:
+ case 101:
+ break;
+ case 98:
+ isNextShifted = TRUE;
+ codeSet = CODE_CODE_B;
+ break;
+ case 100:
+ codeSet = CODE_CODE_B;
+ break;
+ case 99:
+ codeSet = CODE_CODE_C;
+ break;
+ case 106:
+ done = TRUE;
+ break;
+ }
+ }
+ break;
+ case 100:
+ if (code < 96) {
+ result += (FX_CHAR) (' ' + code);
+ } else {
+ if (code != CODE_STOP) {
+ lastCharacterWasPrintable = FALSE;
+ }
+ switch (code) {
+ case 102:
+ case 97:
+ case 96:
+ case 100:
+ break;
+ case 98:
+ isNextShifted = TRUE;
+ codeSet = CODE_CODE_A;
+ break;
+ case 101:
+ codeSet = CODE_CODE_A;
+ break;
+ case 99:
+ codeSet = CODE_CODE_C;
+ break;
+ case 106:
+ done = TRUE;
+ break;
+ }
+ }
+ break;
+ case 99:
+ if (code < 100) {
+ if (code < 10) {
+ result += '0';
+ }
+ FX_CHAR temp[128];
+#if defined(_FX_WINAPI_PARTITION_APP_)
+ sprintf_s(temp, 128, "%d", code);
+#else
+ sprintf(temp, "%d", code);
+#endif
+ result += temp;
+ } else {
+ if (code != CODE_STOP) {
+ lastCharacterWasPrintable = FALSE;
+ }
+ switch (code) {
+ case 102:
+ break;
+ case 101:
+ codeSet = CODE_CODE_A;
+ break;
+ case 100:
+ codeSet = CODE_CODE_B;
+ break;
+ case 106:
+ done = TRUE;
+ break;
+ }
+ }
+ break;
+ }
+ if (unshift) {
+ codeSet = codeSet == CODE_CODE_A ? CODE_CODE_B : CODE_CODE_A;
+ }
+ }
+ FX_INT32 width = row->GetSize();
+ while (nextStart < width && row->Get(nextStart)) {
+ nextStart++;
+ }
+ FX_BOOL boolT1 = row->IsRange(nextStart, FX_MIN(width, nextStart + (nextStart - lastStart) / 2), FALSE, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, "");
+ if (!boolT1) {
+ e = BCExceptionNotFound;
+ return "";
+ }
+ checksumTotal -= multiplier * lastCode;
+ if (checksumTotal % 103 != lastCode) {
+ e = BCExceptionChecksumException;
+ return "";
+ }
+ FX_INT32 resultLength = result.GetLength();
+ if (resultLength > 0 && lastCharacterWasPrintable) {
+ if (codeSet == CODE_CODE_C) {
+ result = result.Mid(0, result.GetLength() - 2);
+ } else {
+ result = result.Mid(0, result.GetLength() - 1);
+ }
+ }
+ if (result.GetLength() == 0) {
+ e = BCExceptionFormatException;
+ return "";
+ }
+ return result;
+}
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