diff options
| author | Bo Xu <bo_xu@foxitsoftware.com> | 2015-01-09 17:27:21 -0800 |
|---|---|---|
| committer | Bo Xu <bo_xu@foxitsoftware.com> | 2015-01-09 17:27:21 -0800 |
| commit | a902979f7c6a39fbdd8e9fc1b2ce00553b655eeb (patch) | |
| tree | 854a51dbf1577ee8493db769ba7c8ab07cc72140 /xfa/src/fxbarcode/oned/BC_OnedCode128Reader.cpp | |
| parent | 5f21e9ddd181fc344f8d6070351858f98a25547e (diff) | |
| download | pdfium-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/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;
+}
|