diff options
Diffstat (limited to 'xfa/fxbarcode/oned/BC_OneDReader.cpp')
| -rw-r--r-- | xfa/fxbarcode/oned/BC_OneDReader.cpp | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/xfa/fxbarcode/oned/BC_OneDReader.cpp b/xfa/fxbarcode/oned/BC_OneDReader.cpp deleted file mode 100644 index 53ff9a480c..0000000000 --- a/xfa/fxbarcode/oned/BC_OneDReader.cpp +++ /dev/null @@ -1,181 +0,0 @@ -// 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 <algorithm> -#include <memory> - -#include "xfa/fxbarcode/BC_BinaryBitmap.h" -#include "xfa/fxbarcode/BC_Reader.h" -#include "xfa/fxbarcode/common/BC_CommonBitArray.h" -#include "xfa/fxbarcode/oned/BC_OneDReader.h" -#include "xfa/fxbarcode/utils.h" - -CBC_OneDReader::CBC_OneDReader() {} -CBC_OneDReader::~CBC_OneDReader() {} -CFX_ByteString CBC_OneDReader::Decode(CBC_BinaryBitmap* image, int32_t& e) { - CFX_ByteString strtemp = Decode(image, 0, e); - BC_EXCEPTION_CHECK_ReturnValue(e, ""); - return strtemp; -} -CFX_ByteString CBC_OneDReader::Decode(CBC_BinaryBitmap* image, - int32_t hints, - int32_t& e) { - CFX_ByteString strtemp = DeDecode(image, hints, e); - BC_EXCEPTION_CHECK_ReturnValue(e, ""); - return strtemp; -} -CFX_ByteString CBC_OneDReader::DecodeRow(int32_t rowNumber, - CBC_CommonBitArray* row, - int32_t hints, - int32_t& e) { - return ""; -} -CFX_ByteString CBC_OneDReader::DeDecode(CBC_BinaryBitmap* image, - int32_t hints, - int32_t& e) { - int32_t height = image->GetHeight(); - int32_t middle = height >> 1; - FX_BOOL tryHarder = FALSE; - int32_t rowStep = std::max(1, height >> (tryHarder ? 8 : 5)); - int32_t maxLines; - if (tryHarder) { - maxLines = height; - } else { - maxLines = 15; - } - for (int32_t x = 0; x < maxLines; x++) { - int32_t rowStepsAboveOrBelow = (x + 1) >> 1; - const bool isAbove = (x & 0x01) == 0; - int32_t rowNumber = - middle + - rowStep * (isAbove ? rowStepsAboveOrBelow : -rowStepsAboveOrBelow); - if (rowNumber < 0 || rowNumber >= height) { - break; - } - std::unique_ptr<CBC_CommonBitArray> row( - image->GetBlackRow(rowNumber, nullptr, e)); - if (e != BCExceptionNO) { - e = BCExceptionNO; - continue; - } - for (int32_t attempt = 0; attempt < 2; attempt++) { - if (attempt == 1) { - row->Reverse(); - } - CFX_ByteString result = DecodeRow(rowNumber, row.get(), hints, e); - if (e != BCExceptionNO) { - e = BCExceptionNO; - continue; - } - return result; - } - } - e = BCExceptionNotFound; - return ""; -} -void CBC_OneDReader::RecordPattern(CBC_CommonBitArray* row, - int32_t start, - CFX_Int32Array* counters, - int32_t& e) { - int32_t numCounters = counters->GetSize(); - for (int32_t i = 0; i < numCounters; i++) { - (*counters)[i] = 0; - } - int32_t end = row->GetSize(); - if (start >= end) { - e = BCExceptionNotFound; - return; - } - FX_BOOL isWhite = !row->Get(start); - int32_t counterPosition = 0; - int32_t j = start; - while (j < end) { - FX_BOOL pixel = row->Get(j); - if (pixel ^ isWhite) { - (*counters)[counterPosition]++; - } else { - counterPosition++; - if (counterPosition == numCounters) { - break; - } else { - (*counters)[counterPosition] = 1; - isWhite = !isWhite; - } - } - j++; - } - if (!(counterPosition == numCounters || - (counterPosition == numCounters - 1 && j == end))) { - e = BCExceptionNotFound; - return; - } -} -void CBC_OneDReader::RecordPatternInReverse(CBC_CommonBitArray* row, - int32_t start, - CFX_Int32Array* counters, - int32_t& e) { - int32_t numTransitionsLeft = counters->GetSize(); - FX_BOOL last = row->Get(start); - while (start > 0 && numTransitionsLeft >= 0) { - if (row->Get(--start) != last) { - numTransitionsLeft--; - last = !last; - } - } - if (numTransitionsLeft >= 0) { - e = BCExceptionNotFound; - return; - } - RecordPattern(row, start + 1, counters, e); - BC_EXCEPTION_CHECK_ReturnVoid(e); -} -int32_t CBC_OneDReader::PatternMatchVariance(CFX_Int32Array* counters, - const int32_t* pattern, - int32_t maxIndividualVariance) { - int32_t numCounters = counters->GetSize(); - int32_t total = 0; - int32_t patternLength = 0; - for (int32_t i = 0; i < numCounters; i++) { - total += (*counters)[i]; - patternLength += pattern[i]; - } - if (total < patternLength) { -#undef max - return FXSYS_IntMax; - } - int32_t unitBarWidth = (total << INTEGER_MATH_SHIFT) / patternLength; - maxIndividualVariance = - (maxIndividualVariance * unitBarWidth) >> INTEGER_MATH_SHIFT; - int32_t totalVariance = 0; - for (int32_t x = 0; x < numCounters; x++) { - int32_t counter = (*counters)[x] << INTEGER_MATH_SHIFT; - int32_t scaledPattern = pattern[x] * unitBarWidth; - int32_t variance = counter > scaledPattern ? counter - scaledPattern - : scaledPattern - counter; - if (variance > maxIndividualVariance) { -#undef max - return FXSYS_IntMax; - } - totalVariance += variance; - } - return totalVariance / total; -} |