| 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,
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| - 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,
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| - int32_t hints,
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| - int32_t& e) {
|
| - int32_t height = image->GetHeight();
|
| - int32_t middle = height >> 1;
|
| - FX_BOOL tryHarder = FALSE;
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| - int32_t rowStep = std::max(1, height >> (tryHarder ? 8 : 5));
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| - int32_t maxLines;
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| - if (tryHarder) {
|
| - maxLines = height;
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| - } else {
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| - maxLines = 15;
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| - }
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| - 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;
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| - continue;
|
| - }
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| - return result;
|
| - }
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| - }
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| - e = BCExceptionNotFound;
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| - return "";
|
| -}
|
| -void CBC_OneDReader::RecordPattern(CBC_CommonBitArray* row,
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| - int32_t start,
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| - CFX_Int32Array* counters,
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| - int32_t& e) {
|
| - int32_t numCounters = counters->GetSize();
|
| - for (int32_t i = 0; i < numCounters; i++) {
|
| - (*counters)[i] = 0;
|
| - }
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| - int32_t end = row->GetSize();
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| - if (start >= end) {
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| - e = BCExceptionNotFound;
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| - return;
|
| - }
|
| - FX_BOOL isWhite = !row->Get(start);
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| - int32_t counterPosition = 0;
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| - int32_t j = start;
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| - while (j < end) {
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| - FX_BOOL pixel = row->Get(j);
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| - if (pixel ^ isWhite) {
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| - (*counters)[counterPosition]++;
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| - } else {
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| - counterPosition++;
|
| - if (counterPosition == numCounters) {
|
| - break;
|
| - } else {
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| - (*counters)[counterPosition] = 1;
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| - isWhite = !isWhite;
|
| - }
|
| - }
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| - j++;
|
| - }
|
| - if (!(counterPosition == numCounters ||
|
| - (counterPosition == numCounters - 1 && j == end))) {
|
| - e = BCExceptionNotFound;
|
| - return;
|
| - }
|
| -}
|
| -void CBC_OneDReader::RecordPatternInReverse(CBC_CommonBitArray* row,
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| - int32_t start,
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| - CFX_Int32Array* counters,
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| - int32_t& e) {
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| - int32_t numTransitionsLeft = counters->GetSize();
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| - FX_BOOL last = row->Get(start);
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| - while (start > 0 && numTransitionsLeft >= 0) {
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| - if (row->Get(--start) != last) {
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| - numTransitionsLeft--;
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| - last = !last;
|
| - }
|
| - }
|
| - if (numTransitionsLeft >= 0) {
|
| - e = BCExceptionNotFound;
|
| - return;
|
| - }
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| - RecordPattern(row, start + 1, counters, e);
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| - 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;
|
| -}
|
|
|