diff options
Diffstat (limited to 'xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.cpp')
| -rw-r--r-- | xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.cpp | 199 |
1 files changed, 0 insertions, 199 deletions
diff --git a/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.cpp b/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.cpp deleted file mode 100644 index efc1014188..0000000000 --- a/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.cpp +++ /dev/null @@ -1,199 +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 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 "xfa/fxbarcode/BC_ResultPoint.h" -#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h" -#include "xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.h" -#include "xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.h" - -CBC_QRAlignmentPatternFinder::CBC_QRAlignmentPatternFinder( - CBC_CommonBitMatrix* image, - int32_t startX, - int32_t startY, - int32_t width, - int32_t height, - FX_FLOAT moduleSize) - : m_image(image), - m_startX(startX), - m_startY(startY), - m_width(width), - m_height(height), - m_moduleSize(moduleSize) { - m_crossCheckStateCount.SetSize(3); -} - -CBC_QRAlignmentPatternFinder::~CBC_QRAlignmentPatternFinder() { - for (int32_t i = 0; i < m_possibleCenters.GetSize(); i++) - delete m_possibleCenters[i]; -} - -CBC_QRAlignmentPattern* CBC_QRAlignmentPatternFinder::Find(int32_t& e) { - int32_t startX = m_startX; - int32_t height = m_height; - int32_t maxJ = startX + m_width; - int32_t middleI = m_startY + (height >> 1); - CFX_Int32Array stateCount; - stateCount.SetSize(3); - for (int32_t iGen = 0; iGen < height; iGen++) { - int32_t i = - middleI + ((iGen & 0x01) == 0 ? ((iGen + 1) >> 1) : -((iGen + 1) >> 1)); - stateCount[0] = 0; - stateCount[1] = 0; - stateCount[2] = 0; - int32_t j = startX; - while (j < maxJ && !m_image->Get(j, i)) { - j++; - } - int32_t currentState = 0; - while (j < maxJ) { - if (m_image->Get(j, i)) { - if (currentState == 1) { - stateCount[currentState]++; - } else { - if (currentState == 2) { - if (FoundPatternCross(stateCount)) { - CBC_QRAlignmentPattern* confirmed = - HandlePossibleCenter(stateCount, i, j); - if (confirmed) { - return confirmed; - } - } - stateCount[0] = stateCount[2]; - stateCount[1] = 1; - stateCount[2] = 0; - currentState = 1; - } else { - stateCount[++currentState]++; - } - } - } else { - if (currentState == 1) { - currentState++; - } - stateCount[currentState]++; - } - j++; - } - if (FoundPatternCross(stateCount)) { - CBC_QRAlignmentPattern* confirmed = - HandlePossibleCenter(stateCount, i, maxJ); - if (confirmed) { - return confirmed; - } - } - } - if (m_possibleCenters.GetSize() != 0) { - return m_possibleCenters[0]->Clone(); - } - e = BCExceptionRead; - BC_EXCEPTION_CHECK_ReturnValue(e, nullptr); - return nullptr; -} -FX_FLOAT CBC_QRAlignmentPatternFinder::CenterFromEnd( - const CFX_Int32Array& stateCount, - int32_t end) { - return (FX_FLOAT)(end - stateCount[2]) - stateCount[1] / 2.0f; -} -FX_BOOL CBC_QRAlignmentPatternFinder::FoundPatternCross( - const CFX_Int32Array& stateCount) { - FX_FLOAT moduleSize = m_moduleSize; - FX_FLOAT maxVariance = moduleSize / 2.0f; - for (int32_t i = 0; i < 3; i++) { - if (fabs(moduleSize - stateCount[i]) >= maxVariance) { - return false; - } - } - return TRUE; -} -FX_FLOAT CBC_QRAlignmentPatternFinder::CrossCheckVertical( - int32_t startI, - int32_t centerJ, - int32_t maxCount, - int32_t originalStateCountTotal) { - int32_t maxI = m_image->GetHeight(); - CFX_Int32Array stateCount; - stateCount.Copy(m_crossCheckStateCount); - stateCount[0] = 0; - stateCount[1] = 0; - stateCount[2] = 0; - int32_t i = startI; - while (i >= 0 && m_image->Get(centerJ, i) && stateCount[1] <= maxCount) { - stateCount[1]++; - i--; - } - if (i < 0 || stateCount[1] > maxCount) { - return FXSYS_nan(); - } - while (i >= 0 && !m_image->Get(centerJ, i) && stateCount[0] <= maxCount) { - stateCount[0]++; - i--; - } - if (stateCount[0] > maxCount) { - return FXSYS_nan(); - } - i = startI + 1; - while (i < maxI && m_image->Get(centerJ, i) && stateCount[1] <= maxCount) { - stateCount[1]++; - i++; - } - if (i == maxI || stateCount[1] > maxCount) { - return FXSYS_nan(); - } - while (i < maxI && !m_image->Get(centerJ, i) && stateCount[2] <= maxCount) { - stateCount[2]++; - i++; - } - if (stateCount[2] > maxCount) { - return FXSYS_nan(); - } - int32_t stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2]; - if (5 * abs(stateCountTotal - originalStateCountTotal) >= - originalStateCountTotal) { - return FXSYS_nan(); - } - return FoundPatternCross(stateCount) ? CenterFromEnd(stateCount, i) - : FXSYS_nan(); -} -CBC_QRAlignmentPattern* CBC_QRAlignmentPatternFinder::HandlePossibleCenter( - const CFX_Int32Array& stateCount, - int32_t i, - int32_t j) { - int32_t stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2]; - FX_FLOAT centerJ = CenterFromEnd(stateCount, j); - FX_FLOAT centerI = CrossCheckVertical(i, (int32_t)centerJ, 2 * stateCount[1], - stateCountTotal); - if (!FXSYS_isnan(centerI)) { - FX_FLOAT estimatedModuleSize = - (FX_FLOAT)(stateCount[0] + stateCount[1] + stateCount[2]) / 3.0f; - int32_t max = m_possibleCenters.GetSize(); - for (int32_t index = 0; index < max; index++) { - CBC_QRAlignmentPattern* center = m_possibleCenters[index]; - if (center->AboutEquals(estimatedModuleSize, centerI, centerJ)) { - return new CBC_QRAlignmentPattern(centerJ, centerI, - estimatedModuleSize); - } - } - m_possibleCenters.Add( - new CBC_QRAlignmentPattern(centerJ, centerI, estimatedModuleSize)); - } - return nullptr; -} |