diff options
Diffstat (limited to 'xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp b/xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp new file mode 100644 index 0000000000..cfb676b0a7 --- /dev/null +++ b/xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.cpp @@ -0,0 +1,366 @@ +// 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 2007 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_CommonBitMatrix.h"
+#include "BC_DataMatrixVersion.h"
+#include "BC_DataMatrixBitMatrixParser.h"
+CBC_DataMatrixBitMatrixParser::CBC_DataMatrixBitMatrixParser()
+{
+ m_mappingBitMatrix = NULL;
+ m_version = NULL;
+ m_readMappingMatrix = NULL;
+}
+void CBC_DataMatrixBitMatrixParser::Init(CBC_CommonBitMatrix *bitMatrix, FX_INT32 &e)
+{
+ FX_INT32 dimension = bitMatrix->GetHeight();
+ if (dimension < 8 || dimension > 144 || (dimension & 0x01) != 0) {
+ e = BCExceptionFormatException;
+ return;
+ }
+ m_version = ReadVersion(bitMatrix, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ m_mappingBitMatrix = ExtractDataRegion(bitMatrix, e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ m_readMappingMatrix = FX_NEW CBC_CommonBitMatrix();
+ m_readMappingMatrix->Init(m_mappingBitMatrix->GetWidth(), m_mappingBitMatrix->GetHeight());
+}
+CBC_DataMatrixBitMatrixParser::~CBC_DataMatrixBitMatrixParser()
+{
+ if(m_mappingBitMatrix != NULL) {
+ delete m_mappingBitMatrix;
+ }
+ m_mappingBitMatrix = NULL;
+ if(m_readMappingMatrix != NULL) {
+ delete m_readMappingMatrix;
+ }
+ m_readMappingMatrix = NULL;
+}
+CBC_DataMatrixVersion *CBC_DataMatrixBitMatrixParser::GetVersion()
+{
+ return m_version;
+}
+CBC_DataMatrixVersion *CBC_DataMatrixBitMatrixParser::ReadVersion(CBC_CommonBitMatrix *bitMatrix, FX_INT32 &e)
+{
+ FX_INT32 rows = bitMatrix->GetHeight();
+ FX_INT32 columns = bitMatrix->GetWidth();
+ CBC_DataMatrixVersion *temp = CBC_DataMatrixVersion::GetVersionForDimensions(rows, columns, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ return temp;
+}
+CFX_ByteArray *CBC_DataMatrixBitMatrixParser::ReadCodewords(FX_INT32 &e)
+{
+ CBC_AutoPtr<CFX_ByteArray> result(FX_NEW CFX_ByteArray());
+ result->SetSize(m_version->GetTotalCodewords());
+ FX_INT32 resultOffset = 0;
+ FX_INT32 row = 4;
+ FX_INT32 column = 0;
+ FX_INT32 numRows = m_mappingBitMatrix->GetHeight();
+ FX_INT32 numColumns = m_mappingBitMatrix->GetWidth();
+ FX_BOOL corner1Read = FALSE;
+ FX_BOOL corner2Read = FALSE;
+ FX_BOOL corner3Read = FALSE;
+ FX_BOOL corner4Read = FALSE;
+ do {
+ if ((row == numRows) && (column == 0) && !corner1Read) {
+ (*result)[resultOffset++] = (FX_BYTE) ReadCorner1(numRows, numColumns);
+ row -= 2;
+ column += 2;
+ corner1Read = TRUE;
+ } else if ((row == numRows - 2) && (column == 0) && ((numColumns & 0x03) != 0) && !corner2Read) {
+ (*result)[resultOffset++] = (FX_BYTE) ReadCorner2(numRows, numColumns);
+ row -= 2;
+ column += 2;
+ corner2Read = TRUE;
+ } else if ((row == numRows + 4) && (column == 2) && ((numColumns & 0x07) == 0) && !corner3Read) {
+ (*result)[resultOffset++] = (FX_BYTE) ReadCorner3(numRows, numColumns);
+ row -= 2;
+ column += 2;
+ corner3Read = TRUE;
+ } else if ((row == numRows - 2) && (column == 0) && ((numColumns & 0x07) == 4) && !corner4Read) {
+ (*result)[resultOffset++] = (FX_BYTE) ReadCorner4(numRows, numColumns);
+ row -= 2;
+ column += 2;
+ corner4Read = TRUE;
+ } else {
+ do {
+ if ((row < numRows) && (column >= 0) && !m_readMappingMatrix->Get(column, row)) {
+ if (resultOffset < (*result).GetSize() ) {
+ (*result)[resultOffset++] = (FX_BYTE) ReadUtah(row, column, numRows, numColumns);
+ }
+ }
+ row -= 2;
+ column += 2;
+ } while ((row >= 0) && (column < numColumns));
+ row += 1;
+ column += 3;
+ do {
+ if ((row >= 0) && (column < numColumns) && !m_readMappingMatrix->Get(column, row)) {
+ if (resultOffset < (*result).GetSize() ) {
+ (*result)[resultOffset++] = (FX_BYTE) ReadUtah(row, column, numRows, numColumns);
+ }
+ }
+ row += 2;
+ column -= 2;
+ } while ((row < numRows) && (column >= 0));
+ row += 3;
+ column += 1;
+ }
+ } while ((row < numRows) || (column < numColumns));
+ if (resultOffset != m_version->GetTotalCodewords()) {
+ e = BCExceptionFormatException;
+ return NULL;
+ }
+ return result.release();
+}
+FX_BOOL CBC_DataMatrixBitMatrixParser::ReadModule(FX_INT32 row, FX_INT32 column, FX_INT32 numRows, FX_INT32 numColumns)
+{
+ if (row < 0) {
+ row += numRows;
+ column += 4 - ((numRows + 4) & 0x07);
+ }
+ if (column < 0) {
+ column += numColumns;
+ row += 4 - ((numColumns + 4) & 0x07);
+ }
+ m_readMappingMatrix->Set(column, row);
+ return m_mappingBitMatrix->Get(column, row);
+}
+FX_INT32 CBC_DataMatrixBitMatrixParser::ReadUtah(FX_INT32 row, FX_INT32 column, FX_INT32 numRows, FX_INT32 numColumns)
+{
+ FX_INT32 currentByte = 0;
+ if (ReadModule(row - 2, column - 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(row - 2, column - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(row - 1, column - 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(row - 1, column - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(row - 1, column, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(row, column - 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(row, column - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(row, column, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ return currentByte;
+}
+FX_INT32 CBC_DataMatrixBitMatrixParser::ReadCorner1(FX_INT32 numRows, FX_INT32 numColumns)
+{
+ FX_INT32 currentByte = 0;
+ if (ReadModule(numRows - 1, 0, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(numRows - 1, 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(numRows - 1, 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(1, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(2, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(3, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ return currentByte;
+}
+FX_INT32 CBC_DataMatrixBitMatrixParser::ReadCorner2(FX_INT32 numRows, FX_INT32 numColumns)
+{
+ FX_INT32 currentByte = 0;
+ if (ReadModule(numRows - 3, 0, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(numRows - 2, 0, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(numRows - 1, 0, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 4, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 3, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(1, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ return currentByte;
+}
+FX_INT32 CBC_DataMatrixBitMatrixParser::ReadCorner3(FX_INT32 numRows, FX_INT32 numColumns)
+{
+ FX_INT32 currentByte = 0;
+ if (ReadModule(numRows - 1, 0, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(numRows - 1, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 3, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(1, numColumns - 3, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(1, numColumns - 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(1, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ return currentByte;
+}
+FX_INT32 CBC_DataMatrixBitMatrixParser::ReadCorner4(FX_INT32 numRows, FX_INT32 numColumns)
+{
+ FX_INT32 currentByte = 0;
+ if (ReadModule(numRows - 3, 0, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(numRows - 2, 0, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(numRows - 1, 0, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 2, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(0, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(1, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(2, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ currentByte <<= 1;
+ if (ReadModule(3, numColumns - 1, numRows, numColumns)) {
+ currentByte |= 1;
+ }
+ return currentByte;
+}
+CBC_CommonBitMatrix *CBC_DataMatrixBitMatrixParser::ExtractDataRegion(CBC_CommonBitMatrix *bitMatrix , FX_INT32 &e)
+{
+ FX_INT32 symbolSizeRows = m_version->GetSymbolSizeRows();
+ FX_INT32 symbolSizeColumns = m_version->GetSymbolSizeColumns();
+ if (bitMatrix->GetHeight() != symbolSizeRows) {
+ e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix;
+ return NULL;
+ }
+ FX_INT32 dataRegionSizeRows = m_version->GetDataRegionSizeRows();
+ FX_INT32 dataRegionSizeColumns = m_version->GetDataRegionSizeColumns();
+ FX_INT32 numDataRegionsRow = symbolSizeRows / dataRegionSizeRows;
+ FX_INT32 numDataRegionsColumn = symbolSizeColumns / dataRegionSizeColumns;
+ FX_INT32 sizeDataRegionRow = numDataRegionsRow * dataRegionSizeRows;
+ FX_INT32 sizeDataRegionColumn = numDataRegionsColumn * dataRegionSizeColumns;
+ CBC_CommonBitMatrix *bitMatrixWithoutAlignment = FX_NEW CBC_CommonBitMatrix();
+ bitMatrixWithoutAlignment->Init(sizeDataRegionColumn, sizeDataRegionRow);
+ FX_INT32 dataRegionRow;
+ for (dataRegionRow = 0; dataRegionRow < numDataRegionsRow; ++dataRegionRow) {
+ FX_INT32 dataRegionRowOffset = dataRegionRow * dataRegionSizeRows;
+ FX_INT32 dataRegionColumn;
+ for (dataRegionColumn = 0; dataRegionColumn < numDataRegionsColumn; ++dataRegionColumn) {
+ FX_INT32 dataRegionColumnOffset = dataRegionColumn * dataRegionSizeColumns;
+ FX_INT32 i;
+ for (i = 0; i < dataRegionSizeRows; ++i) {
+ FX_INT32 readRowOffset = dataRegionRow * (dataRegionSizeRows + 2) + 1 + i;
+ FX_INT32 writeRowOffset = dataRegionRowOffset + i;
+ FX_INT32 j;
+ for (j = 0; j < dataRegionSizeColumns; ++j) {
+ FX_INT32 readColumnOffset = dataRegionColumn * (dataRegionSizeColumns + 2) + 1 + j;
+ if (bitMatrix->Get(readColumnOffset, readRowOffset)) {
+ FX_INT32 writeColumnOffset = dataRegionColumnOffset + j;
+ bitMatrixWithoutAlignment->Set(writeColumnOffset, writeRowOffset);
+ }
+ }
+ }
+ }
+ }
+ return bitMatrixWithoutAlignment;
+}
|