1// Copyright 2014 PDFium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6// Original code is licensed as follows:
7/*
8 * Copyright 2008 ZXing authors
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 *      http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 */
22
23#include "xfa/fxbarcode/BC_Dimension.h"
24#include "xfa/fxbarcode/BC_TwoDimWriter.h"
25#include "xfa/fxbarcode/BC_UtilCodingConvert.h"
26#include "xfa/fxbarcode/BC_Writer.h"
27#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
28#include "xfa/fxbarcode/common/BC_CommonByteMatrix.h"
29#include "xfa/fxbarcode/datamatrix/BC_ASCIIEncoder.h"
30#include "xfa/fxbarcode/datamatrix/BC_Base256Encoder.h"
31#include "xfa/fxbarcode/datamatrix/BC_C40Encoder.h"
32#include "xfa/fxbarcode/datamatrix/BC_DataMatrixSymbolInfo144.h"
33#include "xfa/fxbarcode/datamatrix/BC_DataMatrixWriter.h"
34#include "xfa/fxbarcode/datamatrix/BC_DefaultPlacement.h"
35#include "xfa/fxbarcode/datamatrix/BC_EdifactEncoder.h"
36#include "xfa/fxbarcode/datamatrix/BC_Encoder.h"
37#include "xfa/fxbarcode/datamatrix/BC_EncoderContext.h"
38#include "xfa/fxbarcode/datamatrix/BC_ErrorCorrection.h"
39#include "xfa/fxbarcode/datamatrix/BC_HighLevelEncoder.h"
40#include "xfa/fxbarcode/datamatrix/BC_SymbolInfo.h"
41#include "xfa/fxbarcode/datamatrix/BC_SymbolShapeHint.h"
42#include "xfa/fxbarcode/datamatrix/BC_TextEncoder.h"
43#include "xfa/fxbarcode/datamatrix/BC_X12Encoder.h"
44
45CBC_DataMatrixWriter::CBC_DataMatrixWriter() {}
46CBC_DataMatrixWriter::~CBC_DataMatrixWriter() {}
47bool CBC_DataMatrixWriter::SetErrorCorrectionLevel(int32_t level) {
48  m_iCorrectLevel = level;
49  return true;
50}
51uint8_t* CBC_DataMatrixWriter::Encode(const CFX_WideString& contents,
52                                      int32_t& outWidth,
53                                      int32_t& outHeight,
54                                      int32_t& e) {
55  if (outWidth < 0 || outHeight < 0) {
56    e = BCExceptionHeightAndWidthMustBeAtLeast1;
57    return nullptr;
58  }
59  CBC_SymbolShapeHint::SymbolShapeHint shape =
60      CBC_SymbolShapeHint::FORCE_SQUARE;
61  CBC_Dimension* minSize = nullptr;
62  CBC_Dimension* maxSize = nullptr;
63  CFX_WideString ecLevel;
64  CFX_WideString encoded = CBC_HighLevelEncoder::encodeHighLevel(
65      contents, ecLevel, shape, minSize, maxSize, e);
66  if (e != BCExceptionNO)
67    return nullptr;
68  CBC_SymbolInfo* symbolInfo = CBC_SymbolInfo::lookup(
69      encoded.GetLength(), shape, minSize, maxSize, true, e);
70  if (e != BCExceptionNO)
71    return nullptr;
72  CFX_WideString codewords =
73      CBC_ErrorCorrection::encodeECC200(encoded, symbolInfo, e);
74  if (e != BCExceptionNO)
75    return nullptr;
76  CBC_DefaultPlacement* placement =
77      new CBC_DefaultPlacement(codewords, symbolInfo->getSymbolDataWidth(e),
78                               symbolInfo->getSymbolDataHeight(e));
79  if (e != BCExceptionNO)
80    return nullptr;
81  placement->place();
82  CBC_CommonByteMatrix* bytematrix = encodeLowLevel(placement, symbolInfo, e);
83  if (e != BCExceptionNO)
84    return nullptr;
85  outWidth = bytematrix->GetWidth();
86  outHeight = bytematrix->GetHeight();
87  uint8_t* result = FX_Alloc2D(uint8_t, outWidth, outHeight);
88  FXSYS_memcpy(result, bytematrix->GetArray(), outWidth * outHeight);
89  delete bytematrix;
90  delete placement;
91  return result;
92}
93CBC_CommonByteMatrix* CBC_DataMatrixWriter::encodeLowLevel(
94    CBC_DefaultPlacement* placement,
95    CBC_SymbolInfo* symbolInfo,
96    int32_t& e) {
97  int32_t symbolWidth = symbolInfo->getSymbolDataWidth(e);
98  if (e != BCExceptionNO)
99    return nullptr;
100  int32_t symbolHeight = symbolInfo->getSymbolDataHeight(e);
101  if (e != BCExceptionNO)
102    return nullptr;
103  CBC_CommonByteMatrix* matrix = new CBC_CommonByteMatrix(
104      symbolInfo->getSymbolWidth(e), symbolInfo->getSymbolHeight(e));
105  if (e != BCExceptionNO)
106    return nullptr;
107  matrix->Init();
108  int32_t matrixY = 0;
109  for (int32_t y = 0; y < symbolHeight; y++) {
110    int32_t matrixX;
111    if ((y % symbolInfo->m_matrixHeight) == 0) {
112      matrixX = 0;
113      for (int32_t x = 0; x < symbolInfo->getSymbolWidth(e); x++) {
114        matrix->Set(matrixX, matrixY, (x % 2) == 0);
115        matrixX++;
116      }
117      matrixY++;
118    }
119    matrixX = 0;
120    for (int32_t x = 0; x < symbolWidth; x++) {
121      if ((x % symbolInfo->m_matrixWidth) == 0) {
122        matrix->Set(matrixX, matrixY, true);
123        matrixX++;
124      }
125      matrix->Set(matrixX, matrixY, placement->getBit(x, y));
126      matrixX++;
127      if ((x % symbolInfo->m_matrixWidth) == symbolInfo->m_matrixWidth - 1) {
128        matrix->Set(matrixX, matrixY, (y % 2) == 0);
129        matrixX++;
130      }
131    }
132    matrixY++;
133    if ((y % symbolInfo->m_matrixHeight) == symbolInfo->m_matrixHeight - 1) {
134      matrixX = 0;
135      for (int32_t x = 0; x < symbolInfo->getSymbolWidth(e); x++) {
136        matrix->Set(matrixX, matrixY, true);
137        matrixX++;
138      }
139      matrixY++;
140    }
141  }
142  return matrix;
143}
144