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Unified Diff: xfa/src/fxbarcode/src/BC_QRAlignmentPatternFinder.cpp

Issue 842043002: Organize barcode codes into modules. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa
Patch Set: rebase Created 5 years, 11 months ago
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Index: xfa/src/fxbarcode/src/BC_QRAlignmentPatternFinder.cpp
diff --git a/xfa/src/fxbarcode/src/BC_QRAlignmentPatternFinder.cpp b/xfa/src/fxbarcode/src/BC_QRAlignmentPatternFinder.cpp
deleted file mode 100644
index 59ae4aad0448f64e003eb878f08d5f2959560e48..0000000000000000000000000000000000000000
--- a/xfa/src/fxbarcode/src/BC_QRAlignmentPatternFinder.cpp
+++ /dev/null
@@ -1,187 +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 "barcode.h"
-#include "include/BC_ResultPoint.h"
-#include "include/BC_QRAlignmentPattern.h"
-#include "include/BC_QRAlignmentPatternFinder.h"
-#include "include/BC_CommonBitMatrix.h"
-CBC_QRAlignmentPatternFinder::CBC_QRAlignmentPatternFinder(CBC_CommonBitMatrix *image,
- FX_INT32 startX,
- FX_INT32 startY,
- FX_INT32 width,
- FX_INT32 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 (FX_INT32 i = 0; i < m_possibleCenters.GetSize(); i++) {
- delete (CBC_QRAlignmentPattern*)m_possibleCenters[i];
- }
- m_possibleCenters.RemoveAll();
-}
-CBC_QRAlignmentPattern *CBC_QRAlignmentPatternFinder::Find(FX_INT32 &e)
-{
- FX_INT32 startX = m_startX;
- FX_INT32 height = m_height;
- FX_INT32 maxJ = startX + m_width;
- FX_INT32 middleI = m_startY + (height >> 1);
- CFX_Int32Array stateCount;
- stateCount.SetSize(3);
- for (FX_INT32 iGen = 0; iGen < height; iGen++) {
- FX_INT32 i = middleI + ((iGen & 0x01) == 0 ? ((iGen + 1) >> 1) : -((iGen + 1) >> 1));
- stateCount[0] = 0;
- stateCount[1] = 0;
- stateCount[2] = 0;
- FX_INT32 j = startX;
- while (j < maxJ && !m_image->Get(j, i)) {
- j++;
- }
- FX_INT32 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 != NULL) {
- 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 != NULL) {
- return confirmed;
- }
- }
- }
- if (m_possibleCenters.GetSize() != 0) {
- return ((CBC_QRAlignmentPattern*) (m_possibleCenters[0]) )->Clone();
- }
- e = BCExceptionRead;
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- return NULL;
-}
-FX_FLOAT CBC_QRAlignmentPatternFinder::CenterFromEnd(const CFX_Int32Array &stateCount, FX_INT32 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 (FX_INT32 i = 0; i < 3; i++) {
- if (fabs(moduleSize - stateCount[i]) >= maxVariance) {
- return false;
- }
- }
- return TRUE;
-}
-FX_FLOAT CBC_QRAlignmentPatternFinder::CrossCheckVertical(FX_INT32 startI, FX_INT32 centerJ, FX_INT32 maxCount, FX_INT32 originalStateCountTotal)
-{
- CBC_CommonBitMatrix *image = m_image;
- FX_INT32 maxI = m_image->GetHeight();
- CFX_Int32Array stateCount;
- stateCount.Copy(m_crossCheckStateCount);
- stateCount[0] = 0;
- stateCount[1] = 0;
- stateCount[2] = 0;
- FX_INT32 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();
- }
- FX_INT32 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, FX_INT32 i, FX_INT32 j)
-{
- FX_INT32 stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2];
- FX_FLOAT centerJ = CenterFromEnd(stateCount, j);
- FX_FLOAT centerI = CrossCheckVertical(i, (FX_INT32) centerJ, 2 * stateCount[1], stateCountTotal);
- if (!FXSYS_isnan(centerI)) {
- FX_FLOAT estimatedModuleSize = (FX_FLOAT) (stateCount[0] + stateCount[1] + stateCount[2]) / 3.0f;
- FX_INT32 max = m_possibleCenters.GetSize();
- for (FX_INT32 index = 0; index < max; index++) {
- CBC_QRAlignmentPattern *center = (CBC_QRAlignmentPattern *)(m_possibleCenters[index]);
- if (center->AboutEquals(estimatedModuleSize, centerI, centerJ)) {
- return FX_NEW CBC_QRAlignmentPattern(centerJ, centerI, estimatedModuleSize);
- }
- }
- m_possibleCenters.Add(FX_NEW CBC_QRAlignmentPattern(centerJ, centerI, estimatedModuleSize));
- }
- return NULL;
-}
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