Index: xfa/src/fxbarcode/oned/BC_OneDReader.cpp |
diff --git a/xfa/src/fxbarcode/oned/BC_OneDReader.cpp b/xfa/src/fxbarcode/oned/BC_OneDReader.cpp |
deleted file mode 100644 |
index 9ecb20e67152355841cccbdf76b1a377c94e908b..0000000000000000000000000000000000000000 |
--- a/xfa/src/fxbarcode/oned/BC_OneDReader.cpp |
+++ /dev/null |
@@ -1,175 +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/src/fxbarcode/BC_BinaryBitmap.h" |
-#include "xfa/src/fxbarcode/BC_Reader.h" |
-#include "xfa/src/fxbarcode/common/BC_CommonBitArray.h" |
-#include "xfa/src/fxbarcode/oned/BC_OneDReader.h" |
-#include "xfa/src/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::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; |
-} |