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authorDan Sinclair <dsinclair@chromium.org>2017-03-29 15:18:41 -0400
committerChromium commit bot <commit-bot@chromium.org>2017-03-29 21:01:07 +0000
commite778668fe92b8c60e0537ee48f79d5af6c1a2f1e (patch)
treece7ce115b6f7306a6363f4a3d26d0de2c5646aea /fxbarcode/datamatrix/BC_ErrorCorrection.cpp
parentb929ab0886a2b0ceb701989ef126e5b0cabf6997 (diff)
downloadpdfium-e778668fe92b8c60e0537ee48f79d5af6c1a2f1e.tar.xz
Move xfa/fxbarcode fxbarcode/
Nothing in fxbarcode/ depends on XFA code. This CL moves xfa/fxbarcode to be fxbarcode/ and creates a static_library for fxbarcode which is depend on by the xfa library. Change-Id: I0b708737b07efb94b769a5238d92af92bc62880d Reviewed-on: https://pdfium-review.googlesource.com/3291 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: dsinclair <dsinclair@chromium.org>
Diffstat (limited to 'fxbarcode/datamatrix/BC_ErrorCorrection.cpp')
-rw-r--r--fxbarcode/datamatrix/BC_ErrorCorrection.cpp209
1 files changed, 209 insertions, 0 deletions
diff --git a/fxbarcode/datamatrix/BC_ErrorCorrection.cpp b/fxbarcode/datamatrix/BC_ErrorCorrection.cpp
new file mode 100644
index 0000000000..72ce8fcdf3
--- /dev/null
+++ b/fxbarcode/datamatrix/BC_ErrorCorrection.cpp
@@ -0,0 +1,209 @@
+// 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 <vector>
+
+#include "fxbarcode/datamatrix/BC_Encoder.h"
+#include "fxbarcode/datamatrix/BC_ErrorCorrection.h"
+#include "fxbarcode/datamatrix/BC_SymbolInfo.h"
+#include "fxbarcode/datamatrix/BC_SymbolShapeHint.h"
+
+namespace {
+
+const uint8_t FACTOR_SETS[] = {5, 7, 10, 11, 12, 14, 18, 20,
+ 24, 28, 36, 42, 48, 56, 62, 68};
+
+const uint8_t FACTORS_0[5] = {228, 48, 15, 111, 62};
+const uint8_t FACTORS_1[7] = {23, 68, 144, 134, 240, 92, 254};
+const uint8_t FACTORS_2[10] = {28, 24, 185, 166, 223, 248, 116, 255, 110, 61};
+const uint8_t FACTORS_3[11] = {175, 138, 205, 12, 194, 168,
+ 39, 245, 60, 97, 120};
+
+const uint8_t FACTORS_4[12] = {41, 153, 158, 91, 61, 42,
+ 142, 213, 97, 178, 100, 242};
+
+const uint8_t FACTORS_5[14] = {156, 97, 192, 252, 95, 9, 157,
+ 119, 138, 45, 18, 186, 83, 185};
+
+const uint8_t FACTORS_6[18] = {83, 195, 100, 39, 188, 75, 66, 61, 241,
+ 213, 109, 129, 94, 254, 225, 48, 90, 188};
+
+const uint8_t FACTORS_7[20] = {15, 195, 244, 9, 233, 71, 168, 2, 188, 160,
+ 153, 145, 253, 79, 108, 82, 27, 174, 186, 172};
+
+const uint8_t FACTORS_8[24] = {52, 190, 88, 205, 109, 39, 176, 21,
+ 155, 197, 251, 223, 155, 21, 5, 172,
+ 254, 124, 12, 181, 184, 96, 50, 193};
+
+const uint8_t FACTORS_9[28] = {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};
+
+const uint8_t FACTORS_10[36] = {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};
+
+const uint8_t FACTORS_11[42] = {
+ 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};
+
+const uint8_t FACTORS_12[48] = {
+ 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};
+
+const uint8_t FACTORS_13[56] = {
+ 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};
+
+const uint8_t FACTORS_14[62] = {
+ 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};
+
+const uint8_t FACTORS_15[68] = {
+ 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};
+
+const uint8_t* const FACTORS[16] = {
+ FACTORS_0, FACTORS_1, FACTORS_2, FACTORS_3, FACTORS_4, FACTORS_5,
+ FACTORS_6, FACTORS_7, FACTORS_8, FACTORS_9, FACTORS_10, FACTORS_11,
+ FACTORS_12, FACTORS_13, FACTORS_14, FACTORS_15};
+
+} // namespace
+
+int32_t CBC_ErrorCorrection::MODULO_VALUE = 0x12D;
+int32_t CBC_ErrorCorrection::LOG[256] = {0};
+int32_t CBC_ErrorCorrection::ALOG[256] = {0};
+void CBC_ErrorCorrection::Initialize() {
+ int32_t p = 1;
+ for (int32_t 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,
+ int32_t& e) {
+ if (codewords.GetLength() != symbolInfo->m_dataCapacity) {
+ e = BCExceptionIllegalArgument;
+ return CFX_WideString();
+ }
+ CFX_WideString sb;
+ sb += codewords;
+ int32_t blockCount = symbolInfo->getInterleavedBlockCount();
+ if (blockCount == 1) {
+ CFX_WideString ecc =
+ createECCBlock(codewords, symbolInfo->m_errorCodewords, e);
+ if (e != BCExceptionNO)
+ return CFX_WideString();
+ sb += ecc;
+ } else {
+ std::vector<int32_t> dataSizes(blockCount);
+ std::vector<int32_t> errorSizes(blockCount);
+ std::vector<int32_t> startPos(blockCount);
+ for (int32_t 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 (int32_t block = 0; block < blockCount; block++) {
+ CFX_WideString temp;
+ for (int32_t d = block; d < symbolInfo->m_dataCapacity; d += blockCount) {
+ temp += (wchar_t)codewords.GetAt(d);
+ }
+ CFX_WideString ecc = createECCBlock(temp, errorSizes[block], e);
+ if (e != BCExceptionNO)
+ return CFX_WideString();
+ int32_t pos = 0;
+ for (int32_t 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,
+ int32_t numECWords,
+ int32_t& e) {
+ return createECCBlock(codewords, 0, codewords.GetLength(), numECWords, e);
+}
+CFX_WideString CBC_ErrorCorrection::createECCBlock(CFX_WideString codewords,
+ int32_t start,
+ int32_t len,
+ int32_t numECWords,
+ int32_t& e) {
+ static const size_t kFactorTableNum = sizeof(FACTOR_SETS) / sizeof(int32_t);
+ size_t table = 0;
+ while (table < kFactorTableNum && FACTOR_SETS[table] != numECWords)
+ table++;
+
+ if (table >= kFactorTableNum) {
+ e = BCExceptionIllegalArgument;
+ return CFX_WideString();
+ }
+ uint16_t* ecc = FX_Alloc(uint16_t, numECWords);
+ FXSYS_memset(ecc, 0, numECWords * sizeof(uint16_t));
+ for (int32_t l = start; l < start + len; l++) {
+ uint16_t m = ecc[numECWords - 1] ^ codewords.GetAt(l);
+ for (int32_t k = numECWords - 1; k > 0; k--) {
+ if (m != 0 && FACTORS[table][k] != 0) {
+ ecc[k] = (uint16_t)(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] = (uint16_t)ALOG[(LOG[m] + LOG[FACTORS[table][0]]) % 255];
+ } else {
+ ecc[0] = 0;
+ }
+ }
+ CFX_WideString strecc;
+ for (int32_t j = 0; j < numECWords; j++) {
+ strecc += (wchar_t)ecc[numECWords - j - 1];
+ }
+ FX_Free(ecc);
+ return strecc;
+}