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

1 files changed, 472 insertions, 0 deletions

diff --git a/xfa/src/fxbarcode/datamatrix/BC_DataMatrixDecodedBitStreamParser.cpp b/xfa/src/fxbarcode/datamatrix/BC_DataMatrixDecodedBitStreamParser.cpp
new file mode 100644
index 0000000000..e934d9313d
--- /dev/null
+++ b/xfa/src/fxbarcode/datamatrix/BC_DataMatrixDecodedBitStreamParser.cpp
@@ -0,0 +1,472 @@
+// 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 "../common/BC_CommonDecoderResult.h"

+#include "../common/BC_CommonBitSource.h"

+#include "BC_DataMatrixDecodedBitStreamParser.h"

+const FX_CHAR CBC_DataMatrixDecodedBitStreamParser::C40_BASIC_SET_CHARS[] = {

+    '*', '*', '*', ' ', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',

+    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',

+    'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'

+};

+const FX_CHAR CBC_DataMatrixDecodedBitStreamParser::C40_SHIFT2_SET_CHARS[] = {

+    '!', '"', '#', '$', '%', '&', '\'', '(', ')', '*',  '+', ',', '-', '.',

+    '/', ':', ';', '<', '=', '>', '?',  '@', '[', '\\', ']', '^', '_'

+};

+const FX_CHAR CBC_DataMatrixDecodedBitStreamParser::TEXT_BASIC_SET_CHARS[] = {

+    '*', '*', '*', ' ', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',

+    'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',

+    'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'

+};

+const FX_CHAR CBC_DataMatrixDecodedBitStreamParser::TEXT_SHIFT3_SET_CHARS[] = {

+    '\'', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N',

+    'O',  'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '{', '|', '}', '~', (FX_CHAR) 127

+};

+const FX_INT32 CBC_DataMatrixDecodedBitStreamParser::PAD_ENCODE = 0;

+const FX_INT32 CBC_DataMatrixDecodedBitStreamParser::ASCII_ENCODE = 1;

+const FX_INT32 CBC_DataMatrixDecodedBitStreamParser::C40_ENCODE = 2;

+const FX_INT32 CBC_DataMatrixDecodedBitStreamParser::TEXT_ENCODE = 3;

+const FX_INT32 CBC_DataMatrixDecodedBitStreamParser::ANSIX12_ENCODE = 4;

+const FX_INT32 CBC_DataMatrixDecodedBitStreamParser::EDIFACT_ENCODE = 5;

+const FX_INT32 CBC_DataMatrixDecodedBitStreamParser::BASE256_ENCODE = 6;

+CBC_DataMatrixDecodedBitStreamParser::CBC_DataMatrixDecodedBitStreamParser()

+{

+}

+CBC_DataMatrixDecodedBitStreamParser::~CBC_DataMatrixDecodedBitStreamParser()

+{

+}

+CBC_CommonDecoderResult *CBC_DataMatrixDecodedBitStreamParser::Decode(CFX_ByteArray &bytes, FX_INT32 &e)

+{

+    CBC_CommonBitSource bits(&bytes);

+    CFX_ByteString result;

+    CFX_ByteString resultTrailer;

+    CFX_Int32Array byteSegments;

+    FX_INT32 mode = ASCII_ENCODE;

+    do {

+        if (mode == 1) {

+            mode = DecodeAsciiSegment(&bits, result, resultTrailer, e);

+            BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+        } else {

+            switch (mode) {

+                case 2:

+                    DecodeC40Segment(&bits, result, e);

+                    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+                    break;

+                case 3:

+                    DecodeTextSegment(&bits, result, e);

+                    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+                    break;

+                case 4:

+                    DecodeAnsiX12Segment(&bits, result, e);

+                    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+                    break;

+                case 5:

+                    DecodeEdifactSegment(&bits, result, e);

+                    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+                    break;

+                case 6:

+                    DecodeBase256Segment(&bits, result, byteSegments, e);

+                    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+                    break;

+                default:

+                    NULL;

+                    e = BCExceptionFormatException;

+                    return NULL;

+            }

+            mode = ASCII_ENCODE;

+        }

+    } while (mode != PAD_ENCODE && bits.Available() > 0);

+    if (resultTrailer.GetLength() > 0) {

+        result += resultTrailer;

+    }

+    CBC_CommonDecoderResult *tempCp =  FX_NEW CBC_CommonDecoderResult();

+    tempCp->Init(bytes, result, (byteSegments.GetSize() <= 0) ? CFX_Int32Array() : byteSegments, NULL, e);

+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

+    return tempCp;

+}

+FX_INT32 CBC_DataMatrixDecodedBitStreamParser::DecodeAsciiSegment(CBC_CommonBitSource *bits, CFX_ByteString &result, CFX_ByteString &resultTrailer, FX_INT32 &e)

+{

+    FX_CHAR buffer[128];

+    FX_BOOL upperShift = FALSE;

+    do {

+        FX_INT32 oneByte = bits->ReadBits(8, e);

+        BC_EXCEPTION_CHECK_ReturnValue(e, 0);

+        if (oneByte == 0) {

+            e = BCExceptionFormatException;

+            return 0;

+        } else if (oneByte <= 128) {

+            oneByte = upperShift ? oneByte + 128 : oneByte;

+            upperShift = FALSE;

+            result += ((FX_CHAR) (oneByte - 1));

+            return ASCII_ENCODE;

+        } else if (oneByte == 129) {

+            return PAD_ENCODE;

+        } else if (oneByte <= 229) {

+            FX_INT32 value = oneByte - 130;

+#if defined(_FX_WINAPI_PARTITION_APP_)

+            memset(buffer, 0, sizeof(FX_CHAR) * 128);

+            _itoa_s(value, buffer, 128, 10);

+#else

+            FXSYS_itoa(value, buffer, 10);

+#endif

+            if (value < 10) {

+                result += '0';

+                buffer[1] = '\0';

+            } else {

+                buffer[2] = '\0';

+            }

+            result += buffer;

+        } else if (oneByte == 230) {

+            return C40_ENCODE;

+        } else if (oneByte == 231) {

+            return BASE256_ENCODE;

+        } else if (oneByte == 232 || oneByte == 233 || oneByte == 234) {

+        } else if (oneByte == 235) {

+            upperShift = TRUE;

+        } else if (oneByte == 236) {

+            result += "[)>";

+            result += 0x1E;

+            result += "05";

+            result += 0x1D;

+            resultTrailer.Insert(0, 0x1E);

+            resultTrailer.Insert(0 + 1, 0x04);

+        } else if (oneByte == 237) {

+            result += "[)>";

+            result += 0x1E;

+            result += "06";

+            result += 0x1D;

+            resultTrailer.Insert(0, 0x1E);

+            resultTrailer.Insert(0 + 1, 0x04);

+        } else if (oneByte == 238) {

+            return ANSIX12_ENCODE;

+        } else if (oneByte == 239) {

+            return TEXT_ENCODE;

+        } else if (oneByte == 240) {

+            return EDIFACT_ENCODE;

+        } else if (oneByte == 241) {

+        } else if (oneByte >= 242) {

+            if (oneByte == 254 && bits->Available() == 0) {

+            } else {

+                e = BCExceptionFormatException;

+                return 0;

+            }

+        }

+    } while (bits->Available() > 0);

+    return ASCII_ENCODE;

+}

+void CBC_DataMatrixDecodedBitStreamParser::DecodeC40Segment(CBC_CommonBitSource *bits, CFX_ByteString &result, FX_INT32 &e)

+{

+    FX_BOOL upperShift = FALSE;

+    CFX_Int32Array cValues;

+    cValues.SetSize(3);

+    do {

+        if (bits->Available() == 8) {

+            return;

+        }

+        FX_INT32 firstByte = bits->ReadBits(8, e);

+        BC_EXCEPTION_CHECK_ReturnVoid(e);

+        if (firstByte == 254) {

+            return;

+        }

+        FX_INT32 tempp = bits->ReadBits(8, e);

+        BC_EXCEPTION_CHECK_ReturnVoid(e);

+        ParseTwoBytes(firstByte, tempp, cValues);

+        FX_INT32 shift = 0;

+        FX_INT32 i;

+        for (i = 0; i < 3; i++) {

+            FX_INT32 cValue = cValues[i];

+            switch (shift) {

+                case 0:

+                    if (cValue < 3) {

+                        shift = cValue + 1;

+                    } else if (cValue < 27) {

+                        FX_CHAR c40char = C40_BASIC_SET_CHARS[cValue];

+                        if (upperShift) {

+                            result += (FX_CHAR) (c40char + 128);

+                            upperShift = FALSE;

+                        } else {

+                            result += c40char;

+                        }

+                    } else {

+                        e = BCExceptionFormatException;

+                        return ;

+                    }

+                    break;

+                case 1:

+                    if (upperShift) {

+                        result += (FX_CHAR) (cValue + 128);

+                        upperShift = FALSE;

+                    } else {

+                        result += cValue;

+                    }

+                    shift = 0;

+                    break;

+                case 2:

+                    if (cValue < 27) {

+                        FX_CHAR c40char = C40_SHIFT2_SET_CHARS[cValue];

+                        if (upperShift) {

+                            result += (FX_CHAR) (c40char + 128);

+                            upperShift = FALSE;

+                        } else {

+                            result += c40char;

+                        }

+                    } else if (cValue == 27) {

+                        e = BCExceptionFormatException;

+                        return;

+                    } else if (cValue == 30) {

+                        upperShift = TRUE;

+                    } else {

+                        e = BCExceptionFormatException;

+                        return;

+                    }

+                    shift = 0;

+                    break;

+                case 3:

+                    if (upperShift) {

+                        result += (FX_CHAR) (cValue + 224);

+                        upperShift = FALSE;

+                    } else {

+                        result += (FX_CHAR) (cValue + 96);

+                    }

+                    shift = 0;

+                    break;

+                default:

+                    break;

+                    e = BCExceptionFormatException;

+                    return;

+            }

+        }

+    } while (bits->Available() > 0);

+}

+void CBC_DataMatrixDecodedBitStreamParser::DecodeTextSegment(CBC_CommonBitSource *bits, CFX_ByteString &result, FX_INT32 &e)

+{

+    FX_BOOL upperShift = FALSE;

+    CFX_Int32Array cValues;

+    cValues.SetSize(3);

+    FX_INT32 shift = 0;

+    do {

+        if (bits->Available() == 8) {

+            return;

+        }

+        FX_INT32 firstByte = bits->ReadBits(8, e);

+        BC_EXCEPTION_CHECK_ReturnVoid(e);

+        if (firstByte == 254) {

+            return;

+        }

+        FX_INT32 inTp = bits->ReadBits(8, e);

+        BC_EXCEPTION_CHECK_ReturnVoid(e);

+        ParseTwoBytes(firstByte, inTp, cValues);

+        for (FX_INT32 i = 0; i < 3; i++) {

+            FX_INT32 cValue = cValues[i];

+            switch (shift) {

+                case 0:

+                    if (cValue < 3) {

+                        shift = cValue + 1;

+                    } else if (cValue < 40) {

+                        FX_CHAR textChar = TEXT_BASIC_SET_CHARS[cValue];

+                        if (upperShift) {

+                            result += (FX_CHAR) (textChar + 128);

+                            upperShift = FALSE;

+                        } else {

+                            result += textChar;

+                        }

+                    } else {

+                        e = BCExceptionFormatException;

+                        return;

+                    }

+                    break;

+                case 1:

+                    if (upperShift) {

+                        result += (FX_CHAR) (cValue + 128);

+                        upperShift = FALSE;

+                    } else {

+                        result += cValue;

+                    }

+                    shift = 0;

+                    break;

+                case 2:

+                    if (cValue < 27) {

+                        FX_CHAR c40char = C40_SHIFT2_SET_CHARS[cValue];

+                        if (upperShift) {

+                            result += (FX_CHAR) (c40char + 128);

+                            upperShift = FALSE;

+                        } else {

+                            result += c40char;

+                        }

+                    } else if (cValue == 27) {

+                        e = BCExceptionFormatException;

+                        return;

+                    } else if (cValue == 30) {

+                        upperShift = TRUE;

+                    } else {

+                        e = BCExceptionFormatException;

+                        return;

+                    }

+                    shift = 0;

+                    break;

+                case 3:

+                    if (cValue < 19) {

+                        FX_CHAR textChar = TEXT_SHIFT3_SET_CHARS[cValue];

+                        if (upperShift) {

+                            result += (FX_CHAR) (textChar + 128);

+                            upperShift = FALSE;

+                        } else {

+                            result += textChar;

+                        }

+                        shift = 0;

+                    } else {

+                        e = BCExceptionFormatException;

+                        return;

+                    }

+                    break;

+                default:

+                    break;

+                    e = BCExceptionFormatException;

+                    return;

+            }

+        }

+    } while (bits->Available() > 0);

+}

+void CBC_DataMatrixDecodedBitStreamParser::DecodeAnsiX12Segment(CBC_CommonBitSource *bits, CFX_ByteString &result, FX_INT32 &e)

+{

+    CFX_Int32Array cValues;

+    cValues.SetSize(3);

+    do {

+        if (bits->Available() == 8) {

+            return;

+        }

+        FX_INT32 firstByte = bits->ReadBits(8, e);

+        BC_EXCEPTION_CHECK_ReturnVoid(e);

+        if (firstByte == 254) {

+            return;

+        }

+        FX_INT32 iTemp1 = bits->ReadBits(8, e);

+        BC_EXCEPTION_CHECK_ReturnVoid(e);

+        ParseTwoBytes(firstByte, iTemp1, cValues);

+        FX_INT32 i;

+        for (i = 0; i < 3; i++) {

+            FX_INT32 cValue = cValues[i];

+            if (cValue == 0) {

+                BC_FX_ByteString_Append(result, 1, '\r');

+            } else if (cValue == 1) {

+                BC_FX_ByteString_Append(result, 1, '*');

+            } else if (cValue == 2) {

+                BC_FX_ByteString_Append(result, 1, '>');

+            } else if (cValue == 3) {

+                BC_FX_ByteString_Append(result, 1, ' ');

+            } else if (cValue < 14) {

+                BC_FX_ByteString_Append(result, 1, (FX_CHAR) (cValue + 44));

+            } else if (cValue < 40) {

+                BC_FX_ByteString_Append(result, 1, (FX_CHAR) (cValue + 51));

+            } else {

+                e = BCExceptionFormatException;

+                return;

+            }

+        }

+    } while (bits->Available() > 0);

+}

+void CBC_DataMatrixDecodedBitStreamParser::ParseTwoBytes(FX_INT32 firstByte, FX_INT32 secondByte, CFX_Int32Array &result)

+{

+    FX_INT32 fullBitValue = (firstByte << 8) + secondByte - 1;

+    FX_INT32 temp = fullBitValue / 1600;

+    result[0] = temp;

+    fullBitValue -= temp * 1600;

+    temp = fullBitValue / 40;

+    result[1] = temp;

+    result[2] = fullBitValue - temp * 40;

+}

+void CBC_DataMatrixDecodedBitStreamParser::DecodeEdifactSegment(CBC_CommonBitSource *bits, CFX_ByteString &result, FX_INT32 &e)

+{

+    FX_CHAR buffer[128];

+    FX_BOOL unlatch = FALSE;

+    do {

+        if (bits->Available() <= 16) {

+            return;

+        }

+        FX_INT32 i;

+        for (i = 0; i < 4; i++) {

+            FX_INT32 edifactValue = bits->ReadBits(6, e);

+            BC_EXCEPTION_CHECK_ReturnVoid(e);

+            if (edifactValue == 0x1F) {

+                unlatch = TRUE;

+            }

+            if (!unlatch) {

+                if ((edifactValue & 32) == 0) {

+                    edifactValue |= 64;

+                }

+#if defined(_FX_WINAPI_PARTITION_APP_)

+                memset(buffer, 0, sizeof(FX_CHAR) * 128);

+                _itoa_s(edifactValue, buffer, 128, 10);

+                result += buffer;

+#else

+                result += FXSYS_itoa(edifactValue, buffer, 10);

+#endif

+            }

+        }

+    } while (!unlatch && bits->Available() > 0);

+}

+void CBC_DataMatrixDecodedBitStreamParser::DecodeBase256Segment(CBC_CommonBitSource *bits, CFX_ByteString &result, CFX_Int32Array &byteSegments, FX_INT32 &e)

+{

+    FX_INT32 codewordPosition = 1 + bits->getByteOffset();

+    FX_INT32 iTmp =  bits->ReadBits(8, e);

+    BC_EXCEPTION_CHECK_ReturnVoid(e);

+    FX_INT32 d1 = Unrandomize255State(iTmp, codewordPosition++);

+    FX_INT32 count;

+    if (d1 == 0) {

+        count = bits->Available() / 8;

+    } else if (d1 < 250) {

+        count = d1;

+    } else {

+        FX_INT32 iTmp3 = bits->ReadBits(8, e);

+        BC_EXCEPTION_CHECK_ReturnVoid(e);

+        count = 250 * (d1 - 249) + Unrandomize255State(iTmp3, codewordPosition++);

+    }

+    if (count < 0) {

+        e = BCExceptionFormatException;

+        return;

+    }

+    CFX_ByteArray *bytes = FX_NEW CFX_ByteArray();

+    bytes->SetSize(count);

+    FX_INT32 i;

+    for (i = 0; i < count; i++) {

+        if (bits->Available() < 8) {

+            e  = BCExceptionFormatException;

+            delete bytes;

+            return;

+        }

+        FX_INT32 iTemp5 = bits->ReadBits(8, e);

+        if (e != BCExceptionNO) {

+            delete bytes;

+            return;

+        }

+        bytes->SetAt(i, Unrandomize255State(iTemp5, codewordPosition++));

+    }

+    BC_FX_ByteString_Append(result, *bytes);

+    delete bytes;

+}

+FX_BYTE CBC_DataMatrixDecodedBitStreamParser::Unrandomize255State(FX_INT32 randomizedBase256Codeword, FX_INT32 base256CodewordPosition)

+{

+    FX_INT32 pseudoRandomNumber = ((149 * base256CodewordPosition) % 255) + 1;

+    FX_INT32 tempVariable = randomizedBase256Codeword - pseudoRandomNumber;

+    return (FX_BYTE) (tempVariable >= 0 ? tempVariable : tempVariable + 256);

+}