Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_ErrorCorrection.cpp

-// 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 2006 Jeremias Maerki.
- *
- * 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 "include/BC_Encoder.h"
-#include "include/BC_SymbolShapeHint.h"
-#include "include/BC_SymbolInfo.h"
-#include "include/BC_ErrorCorrection.h"
-FX_INT32 CBC_ErrorCorrection::FACTOR_SETS[] = {5, 7, 10, 11, 12, 14, 18, 20, 24, 28, 36, 42, 48, 56, 62, 68};
-FX_INT32 CBC_ErrorCorrection::FACTORS[][100] = {
-    {228, 48, 15, 111, 62},
-    {23, 68, 144, 134, 240, 92, 254},
-    {28, 24, 185, 166, 223, 248, 116, 255, 110, 61},
-    {175, 138, 205, 12, 194, 168, 39, 245, 60, 97, 120},
-    {41, 153, 158, 91, 61, 42, 142, 213, 97, 178, 100, 242},
-    {156, 97, 192, 252, 95, 9, 157, 119, 138, 45, 18, 186, 83, 185},
-    {83, 195, 100, 39, 188, 75, 66, 61, 241, 213, 109, 129, 94, 254, 225, 48, 90, 188},
-    {15, 195, 244, 9, 233, 71, 168, 2, 188, 160, 153, 145, 253, 79, 108, 82, 27, 174, 186, 172},
-    {
-        52, 190, 88, 205, 109, 39, 176, 21, 155, 197, 251, 223, 155, 21, 5, 172,
-        254, 124, 12, 181, 184, 96, 50, 193
-    },
-    {
-        211, 231, 43, 97, 71, 96, 103, 174, 37, 151, 170, 53, 75, 34, 249, 121,
-        17, 138, 110, 213, 141, 136, 120, 151, 233, 168, 93, 255
-    },
-    {
-        245, 127, 242, 218, 130, 250, 162, 181, 102, 120, 84, 179, 220, 251, 80, 182,
-        229, 18, 2, 4, 68, 33, 101, 137, 95, 119, 115, 44, 175, 184, 59, 25,
-        225, 98, 81, 112
-    },
-    {
-        77, 193, 137, 31, 19, 38, 22, 153, 247, 105, 122, 2, 245, 133, 242, 8,
-        175, 95, 100, 9, 167, 105, 214, 111, 57, 121, 21, 1, 253, 57, 54, 101,
-        248, 202, 69, 50, 150, 177, 226, 5, 9, 5
-    },
-    {
-        245, 132, 172, 223, 96, 32, 117, 22, 238, 133, 238, 231, 205, 188, 237, 87,
-        191, 106, 16, 147, 118, 23, 37, 90, 170, 205, 131, 88, 120, 100, 66, 138,
-        186, 240, 82, 44, 176, 87, 187, 147, 160, 175, 69, 213, 92, 253, 225, 19
-    },
-    {
-        175, 9, 223, 238, 12, 17, 220, 208, 100, 29, 175, 170, 230, 192, 215, 235,
-        150, 159, 36, 223, 38, 200, 132, 54, 228, 146, 218, 234, 117, 203, 29, 232,
-        144, 238, 22, 150, 201, 117, 62, 207, 164, 13, 137, 245, 127, 67, 247, 28,
-        155, 43, 203, 107, 233, 53, 143, 46
-    },
-    {
-        242, 93, 169, 50, 144, 210, 39, 118, 202, 188, 201, 189, 143, 108, 196, 37,
-        185, 112, 134, 230, 245, 63, 197, 190, 250, 106, 185, 221, 175, 64, 114, 71,
-        161, 44, 147, 6, 27, 218, 51, 63, 87, 10, 40, 130, 188, 17, 163, 31,
-        176, 170, 4, 107, 232, 7, 94, 166, 224, 124, 86, 47, 11, 204
-    },
-    {
-        220, 228, 173, 89, 251, 149, 159, 56, 89, 33, 147, 244, 154, 36, 73, 127,
-        213, 136, 248, 180, 234, 197, 158, 177, 68, 122, 93, 213, 15, 160, 227, 236,
-        66, 139, 153, 185, 202, 167, 179, 25, 220, 232, 96, 210, 231, 136, 223, 239,
-        181, 241, 59, 52, 172, 25, 49, 232, 211, 189, 64, 54, 108, 153, 132, 63,
-        96, 103, 82, 186
-    }
-};
-FX_INT32 CBC_ErrorCorrection::MODULO_VALUE = 0x12D;
-FX_INT32 CBC_ErrorCorrection::LOG[256] = {0};
-FX_INT32 CBC_ErrorCorrection::ALOG[256] = {0};
-void CBC_ErrorCorrection::Initialize()
-{
-    FX_INT32 p = 1;
-    for (FX_INT32 i = 0; i < 255; i++) {
-        ALOG[i] = p;
-        LOG[p] = i;
-        p <<= 1;
-        if (p >= 256) {
-            p ^= MODULO_VALUE;
-        }
-    }
-}
-void CBC_ErrorCorrection::Finalize()
-{
-}
-CBC_ErrorCorrection::CBC_ErrorCorrection()
-{
-}
-CBC_ErrorCorrection::~CBC_ErrorCorrection()
-{
-}
-CFX_WideString CBC_ErrorCorrection::encodeECC200(CFX_WideString codewords, CBC_SymbolInfo* symbolInfo, FX_INT32 &e)
-{
-    if (codewords.GetLength() != symbolInfo->m_dataCapacity) {
-        e = BCExceptionIllegalArgument;
-        return (FX_LPWSTR)"";
-    }
-    CFX_WideString sb;
-    sb += codewords;
-    FX_INT32 blockCount = symbolInfo->getInterleavedBlockCount();
-    if (blockCount == 1) {
-        CFX_WideString ecc = createECCBlock(codewords, symbolInfo->m_errorCodewords, e);
-        BC_EXCEPTION_CHECK_ReturnValue(e, (FX_LPWSTR)"");
-        sb += ecc;
-    } else {
-        CFX_Int32Array dataSizes;
-        dataSizes.SetSize(blockCount);
-        CFX_Int32Array errorSizes;
-        errorSizes.SetSize(blockCount);
-        CFX_Int32Array startPos;
-        startPos.SetSize(blockCount);
-        for (FX_INT32 i = 0; i < blockCount; i++) {
-            dataSizes[i] = symbolInfo->getDataLengthForInterleavedBlock(i + 1);
-            errorSizes[i] = symbolInfo->getErrorLengthForInterleavedBlock(i + 1);
-            startPos[i] = 0;
-            if (i > 0) {
-                startPos[i] = startPos[i - 1] + dataSizes[i];
-            }
-        }
-        for (FX_INT32 block = 0; block < blockCount; block++) {
-            CFX_WideString temp;
-            for (FX_INT32 d = block; d < symbolInfo->m_dataCapacity; d += blockCount) {
-                temp += (FX_WCHAR)codewords.GetAt(d);
-            }
-            CFX_WideString ecc = createECCBlock(temp, errorSizes[block], e);
-            BC_EXCEPTION_CHECK_ReturnValue(e, (FX_LPWSTR)"");
-            FX_INT32 pos = 0;
-            for (FX_INT32 l = block; l < errorSizes[block] * blockCount; l += blockCount) {
-                sb.SetAt(symbolInfo->m_dataCapacity + l, ecc.GetAt(pos++));
-            }
-        }
-    }
-    return sb;
-}
-CFX_WideString CBC_ErrorCorrection::createECCBlock(CFX_WideString codewords, FX_INT32 numECWords, FX_INT32 &e)
-{
-    return createECCBlock(codewords, 0, codewords.GetLength(), numECWords, e);
-}
-CFX_WideString CBC_ErrorCorrection::createECCBlock(CFX_WideString codewords, FX_INT32 start, FX_INT32 len, FX_INT32 numECWords, FX_INT32 &e)
-{
-    FX_INT32 table = -1;
-    for (FX_INT32 i = 0; i < sizeof(FACTOR_SETS) / sizeof(FX_INT32); i++) {
-        if (FACTOR_SETS[i] == numECWords) {
-            table = i;
-            break;
-        }
-    }
-    if (table < 0) {
-        e = BCExceptionIllegalArgument;
-        return (FX_LPWSTR)"";
-    }
-    FX_WORD* ecc = FX_Alloc(FX_WORD, numECWords);
-    FXSYS_memset32(ecc, 0, numECWords * sizeof(FX_WORD));
-    for (FX_INT32 l = start; l < start + len; l++) {
-        FX_BYTE A = (FX_BYTE)codewords.GetAt(l);
-        FX_WORD B = ecc[numECWords - 1];
-        FX_WORD m = ecc[numECWords - 1] ^ codewords.GetAt(l);
-        for (FX_INT32 k = numECWords - 1; k > 0; k--) {
-            if (m != 0 && FACTORS[table][k] != 0) {
-                FX_INT32 a = LOG[FACTORS[table][k]];
-                FX_INT32 b = ALOG[(LOG[m] + LOG[FACTORS[table][k]]) % 255];
-                FX_WORD c = ecc[k - 1];
-                FX_WORD D = (ecc[k - 1] ^ ALOG[(LOG[m] + LOG[FACTORS[table][k]]) % 255]);
-                ecc[k] = (FX_WORD ) (ecc[k - 1] ^ ALOG[(LOG[m] + LOG[FACTORS[table][k]]) % 255]);
-            } else {
-                ecc[k] = ecc[k - 1];
-            }
-        }
-        if (m != 0 && FACTORS[table][0] != 0) {
-            ecc[0] = (FX_WORD) ALOG[(LOG[m] + LOG[FACTORS[table][0]]) % 255];
-        } else {
-            ecc[0] = 0;
-        }
-    }
-    CFX_WideString strecc;
-    for (FX_INT32 j = 0; j < numECWords; j++) {
-        strecc += (FX_WCHAR)ecc[numECWords - j - 1];
-    }
-    FX_Free(ecc);
-    return strecc;
-}