xfa/src/fxbarcode/qrcode/BC_QRCoderMatrixUtil.cpp - pdfium - Git at Google

 // 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 "../barcode.h"
 #include "../common/BC_CommonByteMatrix.h"
 #include "BC_QRCoderErrorCorrectionLevel.h"
 #include "BC_QRCoder.h"
 #include "BC_QRCoderMaskUtil.h"
 #include "BC_QRCoderMatrixUtil.h"
 #include "BC_QRCoderBitVector.h"
 const FX_INT32 CBC_QRCoderMatrixUtil::POSITION_DETECTION_PATTERN[7][7] = {
     1, 1, 1, 1, 1, 1, 1,
     1, 0, 0, 0, 0, 0, 1,
     1, 0, 1, 1, 1, 0, 1,
     1, 0, 1, 1, 1, 0, 1,
     1, 0, 1, 1, 1, 0, 1,
     1, 0, 0, 0, 0, 0, 1,
     1, 1, 1, 1, 1, 1, 1
 };
 const FX_INT32 CBC_QRCoderMatrixUtil::HORIZONTAL_SEPARATION_PATTERN[1][8] = {
     0, 0, 0, 0, 0, 0, 0, 0
 };
 const FX_INT32 CBC_QRCoderMatrixUtil::VERTICAL_SEPARATION_PATTERN[7][1] = {
     0, 0, 0, 0, 0, 0, 0
 };
 const FX_INT32 CBC_QRCoderMatrixUtil::POSITION_ADJUSTMENT_PATTERN[5][5] = {
     1, 1, 1, 1, 1,
     1, 0, 0, 0, 1,
     1, 0, 1, 0, 1,
     1, 0, 0, 0, 1,
     1, 1, 1, 1, 1
 };
 const FX_INT32 CBC_QRCoderMatrixUtil::POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[40][7] = {
     { -1, -1, -1, -1,  -1,  -1,  -1},
     { 6, 18, -1, -1,  -1,  -1,  -1},
     { 6, 22, -1, -1,  -1,  -1,  -1},
     { 6, 26, -1, -1,  -1,  -1,  -1},
     { 6, 30, -1, -1,  -1,  -1,  -1},
     { 6, 34, -1, -1,  -1,  -1,  -1},
     { 6, 22, 38, -1,  -1,  -1,  -1},
     { 6, 24, 42, -1,  -1,  -1,  -1},
     { 6, 26, 46, -1,  -1,  -1,  -1},
     { 6, 28, 50, -1,  -1,  -1,  -1},
     { 6, 30, 54, -1,  -1,  -1,  -1},
     { 6, 32, 58, -1,  -1,  -1,  -1},
     { 6, 34, 62, -1,  -1,  -1,  -1},
     { 6, 26, 46, 66,  -1,  -1,  -1},
     { 6, 26, 48, 70,  -1,  -1,  -1},
     { 6, 26, 50, 74,  -1,  -1,  -1},
     { 6, 30, 54, 78,  -1,  -1,  -1},
     { 6, 30, 56, 82,  -1,  -1,  -1},
     { 6, 30, 58, 86,  -1,  -1,  -1},
     { 6, 34, 62, 90,  -1,  -1,  -1},
     { 6, 28, 50, 72,  94,  -1,  -1},
     { 6, 26, 50, 74,  98,  -1,  -1},
     { 6, 30, 54, 78, 102,  -1,  -1},
     { 6, 28, 54, 80, 106,  -1,  -1},
     { 6, 32, 58, 84, 110,  -1,  -1},
     { 6, 30, 58, 86, 114,  -1,  -1},
     { 6, 34, 62, 90, 118,  -1,  -1},
     { 6, 26, 50, 74,  98, 122,  -1},
     { 6, 30, 54, 78, 102, 126,  -1},
     { 6, 26, 52, 78, 104, 130,  -1},
     { 6, 30, 56, 82, 108, 134,  -1},
     { 6, 34, 60, 86, 112, 138,  -1},
     { 6, 30, 58, 86, 114, 142,  -1},
     { 6, 34, 62, 90, 118, 146,  -1},
     { 6, 30, 54, 78, 102, 126, 150},
     { 6, 24, 50, 76, 102, 128, 154},
     { 6, 28, 54, 80, 106, 132, 158},
     { 6, 32, 58, 84, 110, 136, 162},
     { 6, 26, 54, 82, 110, 138, 166},
     { 6, 30, 58, 86, 114, 142, 170},
 };
 const FX_INT32 CBC_QRCoderMatrixUtil::TYPE_INFO_COORDINATES[15][2] = {
     {8, 0},
     {8, 1},
     {8, 2},
     {8, 3},
     {8, 4},
     {8, 5},
     {8, 7},
     {8, 8},
     {7, 8},
     {5, 8},
     {4, 8},
     {3, 8},
     {2, 8},
     {1, 8},
     {0, 8},
 };
 const FX_INT32 CBC_QRCoderMatrixUtil::VERSION_INFO_POLY = 0x1f25;
 const FX_INT32 CBC_QRCoderMatrixUtil::TYPE_INFO_POLY = 0x0537;
 const FX_INT32 CBC_QRCoderMatrixUtil::TYPE_INFO_MASK_PATTERN = 0x5412;
 void CBC_QRCoderMatrixUtil::ClearMatrix(CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     matrix->clear((FX_BYTE) - 1);
 }
 void CBC_QRCoderMatrixUtil::BuildMatrix(CBC_QRCoderBitVector* dataBits,
                                         CBC_QRCoderErrorCorrectionLevel* ecLevel,
                                         FX_INT32 version, FX_INT32 maskPattern,
                                         CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     ClearMatrix(matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedBasicPatterns(version, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedTypeInfo(ecLevel, maskPattern, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     MaybeEmbedVersionInfo(version, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedDataBits(dataBits, maskPattern, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
 }
 void CBC_QRCoderMatrixUtil::EmbedBasicPatterns(FX_INT32 version, CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     EmbedPositionDetectionPatternsAndSeparators(matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedDarkDotAtLeftBottomCorner(matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     MaybeEmbedPositionAdjustmentPatterns(version, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedTimingPatterns(matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
 }
 void CBC_QRCoderMatrixUtil::EmbedTypeInfo(CBC_QRCoderErrorCorrectionLevel* ecLevel,
         FX_INT32 maskPattern, CBC_CommonByteMatrix *matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     CBC_QRCoderBitVector typeInfoBits;
     typeInfoBits.Init();
     MakeTypeInfoBits(ecLevel, maskPattern, &typeInfoBits, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     for(FX_INT32 i = 0; i < typeInfoBits.Size(); i++) {
         FX_INT32 bit = typeInfoBits.At(typeInfoBits.Size() - 1 - i, e);
         BC_EXCEPTION_CHECK_ReturnVoid(e);
         FX_INT32 x1 = TYPE_INFO_COORDINATES[i][0];
         FX_INT32 y1 = TYPE_INFO_COORDINATES[i][1];
         matrix->Set(x1, y1, bit);
         if(i < 8) {
             FX_INT32 x2 = matrix->GetWidth() - i - 1;
             FX_INT32 y2 = 8;
             matrix->Set(x2, y2, bit);
         } else {
             FX_INT32 x2 = 8;
             FX_INT32 y2 = matrix->GetHeight() - 7 + (i - 8);
             matrix->Set(x2, y2, bit);
         }
     }
 }
 void CBC_QRCoderMatrixUtil::MaybeEmbedVersionInfo(FX_INT32 version, CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     if(version < 7) {
         return;
     }
     CBC_QRCoderBitVector versionInfoBits;
     versionInfoBits.Init();
     MakeVersionInfoBits(version, &versionInfoBits, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     FX_INT32 bitIndex = 6 * 3 - 1;
     for(FX_INT32 i = 0; i < 6; i++) {
         for(FX_INT32 j = 0; j < 3; j++) {
             FX_INT32 bit = versionInfoBits.At(bitIndex, e);
             BC_EXCEPTION_CHECK_ReturnVoid(e);
             bitIndex--;
             matrix->Set(i, matrix->GetHeight() - 11 + j, bit);
             matrix->Set(matrix->GetHeight() - 11 + j, i, bit);
         }
     }
 }
 void CBC_QRCoderMatrixUtil::EmbedDataBits(CBC_QRCoderBitVector* dataBits,
         FX_INT32 maskPattern, CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL || dataBits == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     FX_INT32 bitIndex = 0;
     FX_INT32 direction = -1;
     FX_INT32 x = matrix->GetWidth() - 1;
     FX_INT32 y = matrix->GetHeight() - 1;
     while(x > 0) {
         if (x == 6) {
             x -= 1;
         }
         while(y >= 0 && y < matrix->GetHeight()) {
             if (y == 6) {
                 y += direction;
                 continue;
             }
             for(FX_INT32 i = 0; i < 2; i++) {
                 FX_INT32 xx = x - i;
                 if(!IsEmpty(matrix->Get(xx, y))) {
                     continue;
                 }
                 FX_INT32 bit;
                 if(bitIndex < dataBits->Size()) {
                     bit = dataBits->At(bitIndex, e);
                     BC_EXCEPTION_CHECK_ReturnVoid(e);
                     bitIndex++;
                 } else {
                     bit = 0;
                 }
                 if( maskPattern != -1) {
                     FX_BOOL bol = CBC_QRCoderMaskUtil::GetDataMaskBit(maskPattern, xx, y, e);
                     BC_EXCEPTION_CHECK_ReturnVoid(e);
                     if(bol) {
                         bit ^= 0x01;
                     }
                 }
                 matrix->Set(xx, y, bit);
             }
             y += direction;
         }
         direction = -direction;
         y += direction;
         x -= 2;
     }
     if(bitIndex != dataBits->Size()) {
         return;
     }
 }
 FX_INT32 CBC_QRCoderMatrixUtil::CalculateBCHCode(FX_INT32 value, FX_INT32 poly)
 {
     FX_INT32 msbSetInPoly = FindMSBSet(poly);
     value <<= msbSetInPoly - 1;
     while(FindMSBSet(value) >= msbSetInPoly) {
         value ^= poly << (FindMSBSet(value) - msbSetInPoly);
     }
     return value;
 }
 void CBC_QRCoderMatrixUtil::MakeTypeInfoBits(CBC_QRCoderErrorCorrectionLevel* ecLevel,
         FX_INT32 maskPattern, CBC_QRCoderBitVector* bits, FX_INT32 &e)
 {
     if(bits == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     if(!CBC_QRCoder::IsValidMaskPattern(maskPattern)) {
         e = BCExceptionBadMask;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     FX_INT32 typeInfo = (ecLevel->GetBits() << 3) | maskPattern;
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     bits->AppendBits(typeInfo, 5, e);
     FX_INT32 bchCode = CalculateBCHCode(typeInfo, TYPE_INFO_POLY);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     bits->AppendBits(bchCode, 10, e);
     CBC_QRCoderBitVector maskBits;
     maskBits.Init();
     maskBits.AppendBits(TYPE_INFO_MASK_PATTERN, 15, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     bits->XOR(&maskBits, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     if(bits->Size() != 15) {
         e = BCExceptionBitSizeNot15;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
 }
 void CBC_QRCoderMatrixUtil::MakeVersionInfoBits(FX_INT32 version, CBC_QRCoderBitVector* bits, FX_INT32 &e)
 {
     if(bits == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     bits->AppendBits(version, 6, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     FX_INT32 bchCode = CalculateBCHCode(version, VERSION_INFO_POLY);
     bits->AppendBits(bchCode, 12, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     if(bits->Size() != 18) {
         e = BCExceptionBitSizeNot18;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
 }
 FX_BOOL CBC_QRCoderMatrixUtil::IsEmpty(FX_INT32 value)
 {
     return (FX_BYTE)value == 0xff;
 }
 FX_BOOL CBC_QRCoderMatrixUtil::IsValidValue(FX_INT32 value)
 {
     return ((FX_BYTE)value == 0xff || (FX_BYTE)value == 0x00 || (FX_BYTE)value == 0x01);
 }
 void CBC_QRCoderMatrixUtil::EmbedTimingPatterns(CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     for(FX_INT32 i = 8; i < matrix->GetWidth() - 8; i++) {
         FX_INT32 bit = (i + 1) % 2;
         if(!IsValidValue(matrix->Get(i, 6))) {
             e = BCExceptionInvalidateImageData;
             BC_EXCEPTION_CHECK_ReturnVoid(e);
         }
         if(IsEmpty(matrix->Get(i , 6))) {
             matrix->Set(i, 6, bit);
         }
         if(!IsValidValue(matrix->Get(6, i))) {
             e = BCExceptionInvalidateImageData;
             BC_EXCEPTION_CHECK_ReturnVoid(e);
         }
         if(IsEmpty(matrix->Get(6, i))) {
             matrix->Set(6, i, bit);
         }
     }
 }
 void CBC_QRCoderMatrixUtil::EmbedDarkDotAtLeftBottomCorner(CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     if(matrix->Get(8, matrix->GetHeight() - 8) == 0) {
         e = BCExceptionHeight_8BeZero;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     matrix->Set(8, matrix->GetHeight() - 8, 1);
 }
 void CBC_QRCoderMatrixUtil::EmbedHorizontalSeparationPattern(FX_INT32 xStart, FX_INT32 yStart,
         CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     for(FX_INT32 x = 0; x < 8; x++) {
         if(!IsEmpty(matrix->Get(xStart + x, yStart))) {
             e = BCExceptionInvalidateData;
             BC_EXCEPTION_CHECK_ReturnVoid(e)
         }
         matrix->Set(xStart + x, yStart, HORIZONTAL_SEPARATION_PATTERN[0][x]);
     }
 }
 void CBC_QRCoderMatrixUtil::EmbedVerticalSeparationPattern(FX_INT32 xStart, FX_INT32 yStart,
         CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     for(FX_INT32 y = 0; y < 7; y++) {
         if(!IsEmpty(matrix->Get(xStart, yStart + y))) {
             e = BCExceptionInvalidateData;
             BC_EXCEPTION_CHECK_ReturnVoid(e);
         }
         matrix->Set(xStart, yStart + y, VERTICAL_SEPARATION_PATTERN[y][0]);
     }
 }
 void CBC_QRCoderMatrixUtil::EmbedPositionAdjustmentPattern(FX_INT32 xStart, FX_INT32 yStart,
         CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e  = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     for(FX_INT32 y = 0; y < 5; y++) {
         for(FX_INT32 x = 0; x < 5; x++) {
             if(!IsEmpty(matrix->Get(xStart + x, y + yStart))) {
                 e = BCExceptionInvalidateData;
                 BC_EXCEPTION_CHECK_ReturnVoid(e);
             }
             matrix->Set(xStart + x, yStart + y, POSITION_ADJUSTMENT_PATTERN[y][x]);
         }
     }
 }
 void CBC_QRCoderMatrixUtil::EmbedPositionDetectionPattern (FX_INT32 xStart, FX_INT32 yStart,
         CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     for(FX_INT32 y = 0; y < 7; y++) {
         for(FX_INT32 x = 0; x < 7; x++) {
             if(!IsEmpty(matrix->Get(xStart + x, yStart + y))) {
                 e = BCExceptionInvalidateData;
                 BC_EXCEPTION_CHECK_ReturnVoid(e);
             }
             matrix->Set(xStart + x, yStart + y, POSITION_DETECTION_PATTERN[y][x]);
         }
     }
 }
 void CBC_QRCoderMatrixUtil::EmbedPositionDetectionPatternsAndSeparators(CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     FX_INT32 pdpWidth = 7;
     EmbedPositionDetectionPattern(0, 0, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedPositionDetectionPattern(matrix->GetWidth() - pdpWidth, 0, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedPositionDetectionPattern(0, matrix->GetWidth() - pdpWidth, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     FX_INT32 hspWidth = 8;
     EmbedHorizontalSeparationPattern(0, hspWidth - 1, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedHorizontalSeparationPattern(matrix->GetWidth() - hspWidth, hspWidth - 1, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedHorizontalSeparationPattern(0, matrix->GetWidth() - hspWidth, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     FX_INT32 vspSize = 7;
     EmbedVerticalSeparationPattern(vspSize, 0, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedVerticalSeparationPattern(matrix->GetHeight() - vspSize - 1, 0, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
     EmbedVerticalSeparationPattern(vspSize, matrix->GetHeight() - vspSize, matrix, e);
     BC_EXCEPTION_CHECK_ReturnVoid(e);
 }
 void CBC_QRCoderMatrixUtil::MaybeEmbedPositionAdjustmentPatterns(FX_INT32 version, CBC_CommonByteMatrix* matrix, FX_INT32 &e)
 {
     if(matrix == NULL) {
         e = BCExceptionNullPointer;
         BC_EXCEPTION_CHECK_ReturnVoid(e);
     }
     if(version < 2) {
         return;
     }
     FX_INT32 index = version - 1;
     FX_INT32 const* coordinates = &(POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[index][0]);
     FX_INT32 numCoordinate = 7;
     for(FX_INT32 i = 0; i < numCoordinate; i++) {
         for(FX_INT32 j = 0; j < numCoordinate; j++) {
             FX_INT32 y = coordinates[i];
             FX_INT32 x = coordinates[j];
             if(x == -1 || y == -1) {
                 continue;
             }
             if(IsEmpty(matrix->Get(x, y))) {
                 EmbedPositionAdjustmentPattern(x - 2, y - 2, matrix, e);
                 BC_EXCEPTION_CHECK_ReturnVoid(e);
             }
         }
     }
 }
 FX_INT32 CBC_QRCoderMatrixUtil::FindMSBSet(FX_INT32 value)
 {
     FX_INT32 numDigits = 0;
     while(value != 0) {
         value >>= 1;
         ++numDigits;
     }
     return numDigits;
 }
 CBC_QRCoderMatrixUtil::CBC_QRCoderMatrixUtil()
 {
 }
 CBC_QRCoderMatrixUtil::~CBC_QRCoderMatrixUtil()
 {
 }
	// 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 "../barcode.h"
	#include "../common/BC_CommonByteMatrix.h"
	#include "BC_QRCoderErrorCorrectionLevel.h"
	#include "BC_QRCoder.h"
	#include "BC_QRCoderMaskUtil.h"
	#include "BC_QRCoderMatrixUtil.h"
	#include "BC_QRCoderBitVector.h"
	const FX_INT32 CBC_QRCoderMatrixUtil::POSITION_DETECTION_PATTERN[7][7] = {
	1, 1, 1, 1, 1, 1, 1,
	1, 0, 0, 0, 0, 0, 1,
	1, 0, 1, 1, 1, 0, 1,
	1, 0, 1, 1, 1, 0, 1,
	1, 0, 1, 1, 1, 0, 1,
	1, 0, 0, 0, 0, 0, 1,
	1, 1, 1, 1, 1, 1, 1
	};
	const FX_INT32 CBC_QRCoderMatrixUtil::HORIZONTAL_SEPARATION_PATTERN[1][8] = {
	0, 0, 0, 0, 0, 0, 0, 0
	};
	const FX_INT32 CBC_QRCoderMatrixUtil::VERTICAL_SEPARATION_PATTERN[7][1] = {
	0, 0, 0, 0, 0, 0, 0
	};
	const FX_INT32 CBC_QRCoderMatrixUtil::POSITION_ADJUSTMENT_PATTERN[5][5] = {
	1, 1, 1, 1, 1,
	1, 0, 0, 0, 1,
	1, 0, 1, 0, 1,
	1, 0, 0, 0, 1,
	1, 1, 1, 1, 1
	};
	const FX_INT32 CBC_QRCoderMatrixUtil::POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[40][7] = {
	{ -1, -1, -1, -1, -1, -1, -1},
	{ 6, 18, -1, -1, -1, -1, -1},
	{ 6, 22, -1, -1, -1, -1, -1},
	{ 6, 26, -1, -1, -1, -1, -1},
	{ 6, 30, -1, -1, -1, -1, -1},
	{ 6, 34, -1, -1, -1, -1, -1},
	{ 6, 22, 38, -1, -1, -1, -1},
	{ 6, 24, 42, -1, -1, -1, -1},
	{ 6, 26, 46, -1, -1, -1, -1},
	{ 6, 28, 50, -1, -1, -1, -1},
	{ 6, 30, 54, -1, -1, -1, -1},
	{ 6, 32, 58, -1, -1, -1, -1},
	{ 6, 34, 62, -1, -1, -1, -1},
	{ 6, 26, 46, 66, -1, -1, -1},
	{ 6, 26, 48, 70, -1, -1, -1},
	{ 6, 26, 50, 74, -1, -1, -1},
	{ 6, 30, 54, 78, -1, -1, -1},
	{ 6, 30, 56, 82, -1, -1, -1},
	{ 6, 30, 58, 86, -1, -1, -1},
	{ 6, 34, 62, 90, -1, -1, -1},
	{ 6, 28, 50, 72, 94, -1, -1},
	{ 6, 26, 50, 74, 98, -1, -1},
	{ 6, 30, 54, 78, 102, -1, -1},
	{ 6, 28, 54, 80, 106, -1, -1},
	{ 6, 32, 58, 84, 110, -1, -1},
	{ 6, 30, 58, 86, 114, -1, -1},
	{ 6, 34, 62, 90, 118, -1, -1},
	{ 6, 26, 50, 74, 98, 122, -1},
	{ 6, 30, 54, 78, 102, 126, -1},
	{ 6, 26, 52, 78, 104, 130, -1},
	{ 6, 30, 56, 82, 108, 134, -1},
	{ 6, 34, 60, 86, 112, 138, -1},
	{ 6, 30, 58, 86, 114, 142, -1},
	{ 6, 34, 62, 90, 118, 146, -1},
	{ 6, 30, 54, 78, 102, 126, 150},
	{ 6, 24, 50, 76, 102, 128, 154},
	{ 6, 28, 54, 80, 106, 132, 158},
	{ 6, 32, 58, 84, 110, 136, 162},
	{ 6, 26, 54, 82, 110, 138, 166},
	{ 6, 30, 58, 86, 114, 142, 170},
	};
	const FX_INT32 CBC_QRCoderMatrixUtil::TYPE_INFO_COORDINATES[15][2] = {
	{8, 0},
	{8, 1},
	{8, 2},
	{8, 3},
	{8, 4},
	{8, 5},
	{8, 7},
	{8, 8},
	{7, 8},
	{5, 8},
	{4, 8},
	{3, 8},
	{2, 8},
	{1, 8},
	{0, 8},
	};
	const FX_INT32 CBC_QRCoderMatrixUtil::VERSION_INFO_POLY = 0x1f25;
	const FX_INT32 CBC_QRCoderMatrixUtil::TYPE_INFO_POLY = 0x0537;
	const FX_INT32 CBC_QRCoderMatrixUtil::TYPE_INFO_MASK_PATTERN = 0x5412;
	void CBC_QRCoderMatrixUtil::ClearMatrix(CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	matrix->clear((FX_BYTE) - 1);
	}
	void CBC_QRCoderMatrixUtil::BuildMatrix(CBC_QRCoderBitVector* dataBits,
	CBC_QRCoderErrorCorrectionLevel* ecLevel,
	FX_INT32 version, FX_INT32 maskPattern,
	CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	ClearMatrix(matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedBasicPatterns(version, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedTypeInfo(ecLevel, maskPattern, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	MaybeEmbedVersionInfo(version, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedDataBits(dataBits, maskPattern, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	void CBC_QRCoderMatrixUtil::EmbedBasicPatterns(FX_INT32 version, CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	EmbedPositionDetectionPatternsAndSeparators(matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedDarkDotAtLeftBottomCorner(matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	MaybeEmbedPositionAdjustmentPatterns(version, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedTimingPatterns(matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	void CBC_QRCoderMatrixUtil::EmbedTypeInfo(CBC_QRCoderErrorCorrectionLevel* ecLevel,
	FX_INT32 maskPattern, CBC_CommonByteMatrix *matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	CBC_QRCoderBitVector typeInfoBits;
	typeInfoBits.Init();
	MakeTypeInfoBits(ecLevel, maskPattern, &typeInfoBits, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	for(FX_INT32 i = 0; i < typeInfoBits.Size(); i++) {
	FX_INT32 bit = typeInfoBits.At(typeInfoBits.Size() - 1 - i, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	FX_INT32 x1 = TYPE_INFO_COORDINATES[i][0];
	FX_INT32 y1 = TYPE_INFO_COORDINATES[i][1];
	matrix->Set(x1, y1, bit);
	if(i < 8) {
	FX_INT32 x2 = matrix->GetWidth() - i - 1;
	FX_INT32 y2 = 8;
	matrix->Set(x2, y2, bit);
	} else {
	FX_INT32 x2 = 8;
	FX_INT32 y2 = matrix->GetHeight() - 7 + (i - 8);
	matrix->Set(x2, y2, bit);
	}
	}
	}
	void CBC_QRCoderMatrixUtil::MaybeEmbedVersionInfo(FX_INT32 version, CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	if(version < 7) {
	return;
	}
	CBC_QRCoderBitVector versionInfoBits;
	versionInfoBits.Init();
	MakeVersionInfoBits(version, &versionInfoBits, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	FX_INT32 bitIndex = 6 * 3 - 1;
	for(FX_INT32 i = 0; i < 6; i++) {
	for(FX_INT32 j = 0; j < 3; j++) {
	FX_INT32 bit = versionInfoBits.At(bitIndex, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	bitIndex--;
	matrix->Set(i, matrix->GetHeight() - 11 + j, bit);
	matrix->Set(matrix->GetHeight() - 11 + j, i, bit);
	}
	}
	}
	void CBC_QRCoderMatrixUtil::EmbedDataBits(CBC_QRCoderBitVector* dataBits,
	FX_INT32 maskPattern, CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL \|\| dataBits == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	FX_INT32 bitIndex = 0;
	FX_INT32 direction = -1;
	FX_INT32 x = matrix->GetWidth() - 1;
	FX_INT32 y = matrix->GetHeight() - 1;
	while(x > 0) {
	if (x == 6) {
	x -= 1;
	}
	while(y >= 0 && y < matrix->GetHeight()) {
	if (y == 6) {
	y += direction;
	continue;
	}
	for(FX_INT32 i = 0; i < 2; i++) {
	FX_INT32 xx = x - i;
	if(!IsEmpty(matrix->Get(xx, y))) {
	continue;
	}
	FX_INT32 bit;
	if(bitIndex < dataBits->Size()) {
	bit = dataBits->At(bitIndex, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	bitIndex++;
	} else {
	bit = 0;
	}
	if( maskPattern != -1) {
	FX_BOOL bol = CBC_QRCoderMaskUtil::GetDataMaskBit(maskPattern, xx, y, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	if(bol) {
	bit ^= 0x01;
	}
	}
	matrix->Set(xx, y, bit);
	}
	y += direction;
	}
	direction = -direction;
	y += direction;
	x -= 2;
	}
	if(bitIndex != dataBits->Size()) {
	return;
	}
	}
	FX_INT32 CBC_QRCoderMatrixUtil::CalculateBCHCode(FX_INT32 value, FX_INT32 poly)
	{
	FX_INT32 msbSetInPoly = FindMSBSet(poly);
	value <<= msbSetInPoly - 1;
	while(FindMSBSet(value) >= msbSetInPoly) {
	value ^= poly << (FindMSBSet(value) - msbSetInPoly);
	}
	return value;
	}
	void CBC_QRCoderMatrixUtil::MakeTypeInfoBits(CBC_QRCoderErrorCorrectionLevel* ecLevel,
	FX_INT32 maskPattern, CBC_QRCoderBitVector* bits, FX_INT32 &e)
	{
	if(bits == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	if(!CBC_QRCoder::IsValidMaskPattern(maskPattern)) {
	e = BCExceptionBadMask;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	FX_INT32 typeInfo = (ecLevel->GetBits() << 3) \| maskPattern;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	bits->AppendBits(typeInfo, 5, e);
	FX_INT32 bchCode = CalculateBCHCode(typeInfo, TYPE_INFO_POLY);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	bits->AppendBits(bchCode, 10, e);
	CBC_QRCoderBitVector maskBits;
	maskBits.Init();
	maskBits.AppendBits(TYPE_INFO_MASK_PATTERN, 15, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	bits->XOR(&maskBits, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	if(bits->Size() != 15) {
	e = BCExceptionBitSizeNot15;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	}
	void CBC_QRCoderMatrixUtil::MakeVersionInfoBits(FX_INT32 version, CBC_QRCoderBitVector* bits, FX_INT32 &e)
	{
	if(bits == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	bits->AppendBits(version, 6, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	FX_INT32 bchCode = CalculateBCHCode(version, VERSION_INFO_POLY);
	bits->AppendBits(bchCode, 12, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	if(bits->Size() != 18) {
	e = BCExceptionBitSizeNot18;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	}
	FX_BOOL CBC_QRCoderMatrixUtil::IsEmpty(FX_INT32 value)
	{
	return (FX_BYTE)value == 0xff;
	}
	FX_BOOL CBC_QRCoderMatrixUtil::IsValidValue(FX_INT32 value)
	{
	return ((FX_BYTE)value == 0xff \|\| (FX_BYTE)value == 0x00 \|\| (FX_BYTE)value == 0x01);
	}
	void CBC_QRCoderMatrixUtil::EmbedTimingPatterns(CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	for(FX_INT32 i = 8; i < matrix->GetWidth() - 8; i++) {
	FX_INT32 bit = (i + 1) % 2;
	if(!IsValidValue(matrix->Get(i, 6))) {
	e = BCExceptionInvalidateImageData;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	if(IsEmpty(matrix->Get(i , 6))) {
	matrix->Set(i, 6, bit);
	}
	if(!IsValidValue(matrix->Get(6, i))) {
	e = BCExceptionInvalidateImageData;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	if(IsEmpty(matrix->Get(6, i))) {
	matrix->Set(6, i, bit);
	}
	}
	}
	void CBC_QRCoderMatrixUtil::EmbedDarkDotAtLeftBottomCorner(CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	if(matrix->Get(8, matrix->GetHeight() - 8) == 0) {
	e = BCExceptionHeight_8BeZero;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	matrix->Set(8, matrix->GetHeight() - 8, 1);
	}
	void CBC_QRCoderMatrixUtil::EmbedHorizontalSeparationPattern(FX_INT32 xStart, FX_INT32 yStart,
	CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	for(FX_INT32 x = 0; x < 8; x++) {
	if(!IsEmpty(matrix->Get(xStart + x, yStart))) {
	e = BCExceptionInvalidateData;
	BC_EXCEPTION_CHECK_ReturnVoid(e)
	}
	matrix->Set(xStart + x, yStart, HORIZONTAL_SEPARATION_PATTERN[0][x]);
	}
	}
	void CBC_QRCoderMatrixUtil::EmbedVerticalSeparationPattern(FX_INT32 xStart, FX_INT32 yStart,
	CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	for(FX_INT32 y = 0; y < 7; y++) {
	if(!IsEmpty(matrix->Get(xStart, yStart + y))) {
	e = BCExceptionInvalidateData;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	matrix->Set(xStart, yStart + y, VERTICAL_SEPARATION_PATTERN[y][0]);
	}
	}
	void CBC_QRCoderMatrixUtil::EmbedPositionAdjustmentPattern(FX_INT32 xStart, FX_INT32 yStart,
	CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	for(FX_INT32 y = 0; y < 5; y++) {
	for(FX_INT32 x = 0; x < 5; x++) {
	if(!IsEmpty(matrix->Get(xStart + x, y + yStart))) {
	e = BCExceptionInvalidateData;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	matrix->Set(xStart + x, yStart + y, POSITION_ADJUSTMENT_PATTERN[y][x]);
	}
	}
	}
	void CBC_QRCoderMatrixUtil::EmbedPositionDetectionPattern (FX_INT32 xStart, FX_INT32 yStart,
	CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	for(FX_INT32 y = 0; y < 7; y++) {
	for(FX_INT32 x = 0; x < 7; x++) {
	if(!IsEmpty(matrix->Get(xStart + x, yStart + y))) {
	e = BCExceptionInvalidateData;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	matrix->Set(xStart + x, yStart + y, POSITION_DETECTION_PATTERN[y][x]);
	}
	}
	}
	void CBC_QRCoderMatrixUtil::EmbedPositionDetectionPatternsAndSeparators(CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	FX_INT32 pdpWidth = 7;
	EmbedPositionDetectionPattern(0, 0, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedPositionDetectionPattern(matrix->GetWidth() - pdpWidth, 0, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedPositionDetectionPattern(0, matrix->GetWidth() - pdpWidth, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	FX_INT32 hspWidth = 8;
	EmbedHorizontalSeparationPattern(0, hspWidth - 1, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedHorizontalSeparationPattern(matrix->GetWidth() - hspWidth, hspWidth - 1, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedHorizontalSeparationPattern(0, matrix->GetWidth() - hspWidth, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	FX_INT32 vspSize = 7;
	EmbedVerticalSeparationPattern(vspSize, 0, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedVerticalSeparationPattern(matrix->GetHeight() - vspSize - 1, 0, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	EmbedVerticalSeparationPattern(vspSize, matrix->GetHeight() - vspSize, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	void CBC_QRCoderMatrixUtil::MaybeEmbedPositionAdjustmentPatterns(FX_INT32 version, CBC_CommonByteMatrix* matrix, FX_INT32 &e)
	{
	if(matrix == NULL) {
	e = BCExceptionNullPointer;
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	if(version < 2) {
	return;
	}
	FX_INT32 index = version - 1;
	FX_INT32 const* coordinates = &(POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[index][0]);
	FX_INT32 numCoordinate = 7;
	for(FX_INT32 i = 0; i < numCoordinate; i++) {
	for(FX_INT32 j = 0; j < numCoordinate; j++) {
	FX_INT32 y = coordinates[i];
	FX_INT32 x = coordinates[j];
	if(x == -1 \|\| y == -1) {
	continue;
	}
	if(IsEmpty(matrix->Get(x, y))) {
	EmbedPositionAdjustmentPattern(x - 2, y - 2, matrix, e);
	BC_EXCEPTION_CHECK_ReturnVoid(e);
	}
	}
	}
	}
	FX_INT32 CBC_QRCoderMatrixUtil::FindMSBSet(FX_INT32 value)
	{
	FX_INT32 numDigits = 0;
	while(value != 0) {
	value >>= 1;
	++numDigits;
	}
	return numDigits;
	}
	CBC_QRCoderMatrixUtil::CBC_QRCoderMatrixUtil()
	{
	}
	CBC_QRCoderMatrixUtil::~CBC_QRCoderMatrixUtil()
	{
	}