Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_QRBitMatrixParser.cpp

-// 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_CommonBitMatrix.h"
-#include "include/BC_QRCoderVersion.h"
-#include "include/BC_QRCoderFormatInformation.h"
-#include "include/BC_QRDataMask.h"
-#include "include/BC_QRBitMatrixParser.h"
-CBC_QRBitMatrixParser::CBC_QRBitMatrixParser()
-{
-}
-void CBC_QRBitMatrixParser::Init(CBC_CommonBitMatrix *bitMatrix, FX_INT32 &e)
-{
-    m_dimension = bitMatrix->GetDimension(e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    m_tempBitMatrix = bitMatrix;
-    if(m_dimension < 21 || (m_dimension & 0x03) != 1) {
-        e = BCExceptionRead;
-        BC_EXCEPTION_CHECK_ReturnVoid(e);
-    }
-    m_bitMatrix = m_tempBitMatrix;
-    m_parsedFormatInfo = NULL;
-    m_version = NULL;
-}
-CBC_QRBitMatrixParser::~CBC_QRBitMatrixParser()
-{
-    if(m_parsedFormatInfo != NULL) {
-        delete m_parsedFormatInfo;
-        m_parsedFormatInfo = NULL;
-    }
-    m_version = NULL;
-}
-CBC_QRCoderFormatInformation* CBC_QRBitMatrixParser::ReadFormatInformation(FX_INT32 &e)
-{
-    if(m_parsedFormatInfo != NULL) {
-        return m_parsedFormatInfo;
-    }
-    FX_INT32 formatInfoBits = 0;
-    FX_INT32 j;
-    for( j = 0; j < 6; j++) {
-        formatInfoBits = CopyBit(8, j, formatInfoBits);
-    }
-    formatInfoBits = CopyBit(8, 7, formatInfoBits);
-    formatInfoBits = CopyBit(8, 8, formatInfoBits);
-    formatInfoBits = CopyBit(7, 8, formatInfoBits);
-    for(FX_INT32 i = 5; i >= 0; i--) {
-        formatInfoBits = CopyBit(i, 8, formatInfoBits);
-    }
-    m_parsedFormatInfo = CBC_QRCoderFormatInformation::DecodeFormatInformation(formatInfoBits);
-    if(m_parsedFormatInfo != NULL) {
-        return m_parsedFormatInfo;
-    }
-    FX_INT32 dimension = m_bitMatrix->GetDimension(e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    formatInfoBits = 0;
-    FX_INT32 iMin = dimension - 8;
-    for(j = dimension - 1; j >= iMin; j--) {
-        formatInfoBits = CopyBit(j, 8, formatInfoBits);
-    }
-    for(FX_INT32 k = dimension - 7; k < dimension; k++) {
-        formatInfoBits = CopyBit(8, k , formatInfoBits);
-    }
-    m_parsedFormatInfo = CBC_QRCoderFormatInformation::DecodeFormatInformation(formatInfoBits);
-    if(m_parsedFormatInfo != NULL) {
-        return m_parsedFormatInfo;
-    }
-    e = BCExceptionRead;
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return NULL;
-}
-CBC_QRCoderVersion* CBC_QRBitMatrixParser::ReadVersion(FX_INT32 &e)
-{
-    if(m_version != NULL) {
-        return m_version;
-    }
-    FX_INT32 dimension = m_bitMatrix->GetDimension(e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    FX_INT32 provisionVersion = (dimension - 17) >> 2;
-    if(provisionVersion <= 6) {
-        CBC_QRCoderVersion* qrv = CBC_QRCoderVersion::GetVersionForNumber(provisionVersion, e);
-        BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-        return qrv;
-    }
-    FX_INT32 versionBits = 0;
-    for (FX_INT32 i = 5; i >= 0; i--) {
-        FX_INT32 jMin = dimension - 11;
-        for (FX_INT32 j = dimension - 9; j >= jMin; j--) {
-            versionBits = CopyBit(i, j, versionBits);
-        }
-    }
-    m_version = CBC_QRCoderVersion::DecodeVersionInformation(versionBits, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    if (m_version != NULL && m_version->GetDimensionForVersion() == dimension) {
-        return m_version;
-    }
-    versionBits = 0;
-    for (FX_INT32 j = 5; j >= 0; j--) {
-        FX_INT32 iMin = dimension - 11;
-        for (FX_INT32 i = dimension - 9; i >= iMin; i--) {
-            versionBits = CopyBit(i, j, versionBits);
-        }
-    }
-    m_version = CBC_QRCoderVersion::DecodeVersionInformation(versionBits, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    if (m_version != NULL && m_version->GetDimensionForVersion() == dimension) {
-        return m_version;
-    }
-    e = BCExceptionRead;
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return NULL;
-}
-FX_INT32 CBC_QRBitMatrixParser::CopyBit(FX_INT32 i, FX_INT32 j, FX_INT32 versionBits)
-{
-    return m_bitMatrix->Get(j, i) ? (versionBits << 1) | 0x1 : versionBits << 1;
-}
-CFX_ByteArray* CBC_QRBitMatrixParser::ReadCodewords(FX_INT32 &e)
-{
-    CBC_QRCoderFormatInformation *formatInfo   = ReadFormatInformation(e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL)
-    CBC_QRCoderVersion                    *version              = ReadVersion(e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    CBC_QRDataMask                *dataMask             = CBC_QRDataMask::ForReference((FX_INT32)(formatInfo->GetDataMask()), e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    FX_INT32                              dimension             = m_bitMatrix->GetDimension(e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    dataMask->UnmaskBitMatirx(m_bitMatrix, dimension);
-    CBC_CommonBitMatrix* cbm = version->BuildFunctionPattern(e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    CBC_AutoPtr<CBC_CommonBitMatrix > functionPattern(cbm);
-    FX_BOOL                       readingUp             = TRUE;
-    CFX_ByteArray * temp = FX_NEW CFX_ByteArray;
-    temp->SetSize(version->GetTotalCodeWords());
-    CBC_AutoPtr<CFX_ByteArray> result(temp);
-    FX_INT32                               resultOffset = 0;
-    FX_INT32                               currentByte  = 0;
-    FX_INT32                               bitsRead             = 0;
-    for(FX_INT32 j = dimension - 1; j > 0; j -= 2) {
-        if(j == 6) {
-            j--;
-        }
-        for(FX_INT32 count = 0; count < dimension; count++) {
-            FX_INT32 i = readingUp ? dimension - 1 - count : count;
-            for(FX_INT32 col = 0; col < 2; col++) {
-                if(!functionPattern->Get(j - col, i)) {
-                    bitsRead++;
-                    currentByte <<= 1;
-                    if(m_bitMatrix->Get(j - col, i)) {
-                        currentByte |= 1;
-                    }
-                    if(bitsRead == 8) {
-                        (*result)[resultOffset++] = (FX_BYTE) currentByte;
-                        bitsRead = 0;
-                        currentByte = 0;
-                    }
-                }
-            }
-        }
-        readingUp ^= TRUE;
-    }
-    if(resultOffset != version->GetTotalCodeWords()) {
-        e = BCExceptionRead;
-        BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    }
-    return result.release();
-}