| // 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 2009 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 <limits> |
| #include <memory> |
| |
| #include "xfa/fxbarcode/BC_BinaryBitmap.h" |
| #include "xfa/fxbarcode/BC_BinaryBitmap.h" |
| #include "xfa/fxbarcode/BC_Reader.h" |
| #include "xfa/fxbarcode/BC_ResultPoint.h" |
| #include "xfa/fxbarcode/common/BC_CommonBitArray.h" |
| #include "xfa/fxbarcode/common/BC_CommonBitMatrix.h" |
| #include "xfa/fxbarcode/common/BC_CommonBitMatrix.h" |
| #include "xfa/fxbarcode/common/BC_CommonDecoderResult.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417BarcodeMetadata.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417BarcodeValue.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417BoundingBox.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417Codeword.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417CodewordDecoder.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417Common.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417DecodedBitStreamParser.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417DetectionResult.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417DetectionResultColumn.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417DetectionResultRowIndicatorColumn.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417Detector.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417DetectorResult.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417DetectorResult.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417ECErrorCorrection.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417ECModulusGF.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417ECModulusPoly.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417Reader.h" |
| #include "xfa/fxbarcode/pdf417/BC_PDF417ScanningDecoder.h" |
| #include "xfa/fxbarcode/utils.h" |
| |
| CBC_PDF417Reader::CBC_PDF417Reader() {} |
| CBC_PDF417Reader::~CBC_PDF417Reader() {} |
| |
| CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image, int32_t& e) { |
| return Decode(image, 0, e); |
| } |
| CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image, |
| FX_BOOL multiple, |
| int32_t hints, |
| int32_t& e) { |
| CFX_ByteString results; |
| std::unique_ptr<CBC_PDF417DetectorResult> detectorResult( |
| CBC_Detector::detect(image, hints, multiple, e)); |
| BC_EXCEPTION_CHECK_ReturnValue(e, ""); |
| for (int32_t i = 0; i < detectorResult->getPoints()->GetSize(); i++) { |
| CBC_ResultPointArray* points = detectorResult->getPoints()->GetAt(i); |
| std::unique_ptr<CBC_CommonDecoderResult> ResultTemp( |
| CBC_PDF417ScanningDecoder::decode( |
| detectorResult->getBits(), points->GetAt(4), points->GetAt(5), |
| points->GetAt(6), points->GetAt(7), getMinCodewordWidth(*points), |
| getMaxCodewordWidth(*points), e)); |
| if (!ResultTemp) { |
| e = BCExceptiontNotFoundInstance; |
| return CFX_ByteString(); |
| } |
| results += ResultTemp->GetText(); |
| } |
| return results; |
| } |
| |
| CFX_ByteString CBC_PDF417Reader::Decode(CBC_BinaryBitmap* image, |
| int32_t hints, |
| int32_t& e) { |
| CFX_ByteString bs = Decode(image, FALSE, 0, e); |
| BC_EXCEPTION_CHECK_ReturnValue(e, ""); |
| return bs; |
| } |
| int32_t CBC_PDF417Reader::getMaxWidth(CBC_ResultPoint* p1, |
| CBC_ResultPoint* p2) { |
| if (!p1 || !p2) |
| return 0; |
| return (int32_t)FXSYS_fabs(p1->GetX() - p2->GetX()); |
| } |
| int32_t CBC_PDF417Reader::getMinWidth(CBC_ResultPoint* p1, |
| CBC_ResultPoint* p2) { |
| if (!p1 || !p2) |
| return std::numeric_limits<int32_t>::max(); |
| return (int32_t)FXSYS_fabs(p1->GetX() - p2->GetX()); |
| } |
| |
| int32_t CBC_PDF417Reader::getMaxCodewordWidth( |
| const CFX_ArrayTemplate<CBC_ResultPoint*>& p) { |
| int32_t a = getMaxWidth(p.GetAt(6), p.GetAt(2)) * |
| CBC_PDF417Common::MODULES_IN_CODEWORD / |
| CBC_PDF417Common::MODULES_IN_STOP_PATTERN; |
| int32_t b = getMaxWidth(p.GetAt(7), p.GetAt(3)) * |
| CBC_PDF417Common::MODULES_IN_CODEWORD / |
| CBC_PDF417Common::MODULES_IN_STOP_PATTERN; |
| int32_t c = std::min(a, getMaxWidth(p.GetAt(0), p.GetAt(4))); |
| int32_t d = std::min(b, getMaxWidth(p.GetAt(1), p.GetAt(5))); |
| return std::min(c, d); |
| } |
| |
| int32_t CBC_PDF417Reader::getMinCodewordWidth( |
| const CFX_ArrayTemplate<CBC_ResultPoint*>& p) { |
| int32_t a = getMinWidth(p.GetAt(6), p.GetAt(2)) * |
| CBC_PDF417Common::MODULES_IN_CODEWORD / |
| CBC_PDF417Common::MODULES_IN_STOP_PATTERN; |
| int32_t b = getMinWidth(p.GetAt(7), p.GetAt(3)) * |
| CBC_PDF417Common::MODULES_IN_CODEWORD / |
| CBC_PDF417Common::MODULES_IN_STOP_PATTERN; |
| int32_t c = std::min(a, getMinWidth(p.GetAt(0), p.GetAt(4))); |
| int32_t d = std::min(b, getMinWidth(p.GetAt(1), p.GetAt(5))); |
| return std::min(c, d); |
| } |