Пример #1
0
        private void SetupPositionAdjustPattern()
        {
            var pos = QRUtil.GetPatternPosition(m_typeNumber);

            for (var i = 0; i < pos.Length; i++)
            {
                for (var j = 0; j < pos.Length; j++)
                {
                    var row = pos[i];
                    var col = pos[j];

                    if (this.m_modules[row][col] != null)
                    {
                        continue;
                    }

                    for (var r = -2; r <= 2; r++)
                    {
                        for (var c = -2; c <= 2; c++)
                        {
                            if (r == -2 || r == 2 || c == -2 || c == 2 ||
                                (r == 0 && c == 0))
                            {
                                this.m_modules[row + r][col + c] = true;
                            }
                            else
                            {
                                this.m_modules[row + r][col + c] = false;
                            }
                        }
                    }
                }
            }
        }
Пример #2
0
        private void MapData(DataCache data, QRMaskPattern maskPattern)
        {
            int inc       = -1;
            int row       = (int)this.m_moduleCount - 1;
            int bitIndex  = 7;
            int byteIndex = 0;

            for (var col = this.m_moduleCount - 1; col > 0; col -= 2)
            {
                if (col == 6)
                {
                    col--;
                }

                while (true)
                {
                    for (int c = 0; c < 2; c++)
                    {
                        if (this.m_modules[row][col - c] == null)
                        {
                            bool dark = false;

                            if (byteIndex < data.Count)
                            {
                                dark = (((Convert.ToUInt32(data[byteIndex]) >> bitIndex) & 1) == 1);
                            }

                            bool mask = QRUtil.GetMask(maskPattern, (int)row, col - c);

                            if (mask)
                            {
                                dark = !dark;
                            }

                            this.m_modules[row][col - c] = dark;
                            bitIndex--;

                            if (bitIndex == -1)
                            {
                                byteIndex++;
                                bitIndex = 7;
                            }
                        }
                    }

                    row += inc;

                    if (row < 0 || this.m_moduleCount <= row)
                    {
                        row -= inc;
                        inc  = -inc;
                        break;
                    }
                }
            }
        }
Пример #3
0
        internal static int GetBCHTypeNumber(int data)
        {
            int d = data << 12;

            while (QRUtil.GetBCHDigit(d) - QRUtil.GetBCHDigit(QRUtil.G18) >= 0)
            {
                d ^= (QRUtil.G18 << (QRUtil.GetBCHDigit(d) - QRUtil.GetBCHDigit(QRUtil.G18)));
            }
            return((data << 12) | d);
        }
Пример #4
0
        internal static int GetBCHTypeInfo(int data)
        {
            int d = (data << 10);
            int s = 0;

            while ((s = (int)(QRUtil.GetBCHDigit(d) - QRUtil.GetBCHDigit(QRUtil.G15))) >= 0)
            {
                d ^= (Convert.ToInt32(QRUtil.G15) << s);
            }
            return((int)((data << 10) | d) ^ QRUtil.G15_MASK);
        }
Пример #5
0
        private void setupTypeNumber(bool test)
        {
            var bits = QRUtil.GetBCHTypeNumber(m_typeNumber);

            for (var i = 0; i < 18; i++)
            {
                var mod = (!test && ((bits >> i) & 1) == 1);
                this.m_modules[(int)Math.Floor(i / 3)][i % 3 + this.m_moduleCount - 8 - 3] = mod;
            }

            for (var i = 0; i < 18; i++)
            {
                var mod = (!test && ((bits >> i) & 1) == 1);
                this.m_modules[i % 3 + this.m_moduleCount - 8 - 3][(int)Math.Floor(i / 3)] = mod;
            }
        }
Пример #6
0
        private void setupTypeInfo(bool test, QRMaskPattern maskPattern)
        {
            var data = ((int)this.m_errorCorrectLevel << 3) | (int)maskPattern;
            var bits = QRUtil.GetBCHTypeInfo(data);

            // vertical
            for (var i = 0; i < 15; i++)
            {
                var mod = (!test && ((bits >> i) & 1) == 1);

                if (i < 6)
                {
                    this.m_modules[i][8] = mod;
                }
                else if (i < 8)
                {
                    this.m_modules[i + 1][8] = mod;
                }
                else
                {
                    this.m_modules[this.m_moduleCount - 15 + i][8] = mod;
                }
            }

            // horizontal
            for (var i = 0; i < 15; i++)
            {
                var mod = (!test && ((bits >> i) & 1) == 1);

                if (i < 8)
                {
                    this.m_modules[8][this.m_moduleCount - i - 1] = mod;
                }
                else if (i < 9)
                {
                    this.m_modules[8][15 - i - 1 + 1] = mod;
                }
                else
                {
                    this.m_modules[8][15 - i - 1] = mod;
                }
            }

            // fixed module
            this.m_modules[this.m_moduleCount - 8][8] = (!test);
        }
Пример #7
0
        private QRMaskPattern GetBestMaskPattern()
        {
            double        minLostPoint = 0;
            QRMaskPattern pattern      = 0;

            for (int i = 0; i < 8; i++)
            {
                this.MakeImpl(true, (QRMaskPattern)i);

                double lostPoint = QRUtil.GetLostPoint(this);

                if (i == 0 || minLostPoint > lostPoint)
                {
                    minLostPoint = lostPoint;
                    pattern      = (QRMaskPattern)i;
                }
            }

            return(pattern);
        }
Пример #8
0
        private DataCache CreateBytes(QRBitBuffer buffer, List <QRRSBlock> rsBlocks)
        {
            int offset = 0;

            int maxDcCount = 0;
            int maxEcCount = 0;

            var dcdata = new DataCache[(rsBlocks.Count)];
            var ecdata = new DataCache[(rsBlocks.Count)];

            for (int r = 0; r < rsBlocks.Count; r++)
            {
                int dcCount = rsBlocks[(int)r].DataCount;
                int ecCount = rsBlocks[(int)r].TotalCount - dcCount;

                maxDcCount = Math.Max(maxDcCount, dcCount);
                maxEcCount = Math.Max(maxEcCount, ecCount);

                dcdata[r] = new DataCache(dcCount);

                for (int i = 0; i < dcdata[r].Count; i++)
                {
                    dcdata[r][i] = 0xff & buffer.m_buffer[(int)(i + offset)];
                }
                offset += dcCount;

                QRPolynomial rsPoly  = QRUtil.GetErrorCorrectPolynomial(ecCount);
                QRPolynomial rawPoly = new QRPolynomial(dcdata[r], rsPoly.GetLength() - 1);

                var modPoly = rawPoly.Mod(rsPoly);
                ecdata[r] = new DataCache(rsPoly.GetLength() - 1);
                for (int i = 0; i < ecdata[r].Count; i++)
                {
                    int modIndex = i + modPoly.GetLength() - (int)ecdata[r].Count;
                    ecdata[r][i] = (modIndex >= 0) ? modPoly.Get(modIndex) : 0;
                }
            }

            int totalCodeCount = 0;

            for (int i = 0; i < rsBlocks.Count; i++)
            {
                totalCodeCount += rsBlocks[(int)i].TotalCount;
            }

            var data  = new DataCache(totalCodeCount);
            int index = 0;

            for (int i = 0; i < maxDcCount; i++)
            {
                for (int r = 0; r < rsBlocks.Count; r++)
                {
                    if (i < dcdata[r].Count)
                    {
                        data[index++] = dcdata[r][i];
                    }
                }
            }

            for (int i = 0; i < maxEcCount; i++)
            {
                for (int r = 0; r < rsBlocks.Count; r++)
                {
                    if (i < ecdata[r].Count)
                    {
                        data[index++] = ecdata[r][i];
                    }
                }
            }

            return(data);
        }
Пример #9
0
        private DataCache CreateData(int typeNumber, QRErrorCorrectLevel errorCorrectLevel, List <QR8bitByte> dataList)
        {
            List <QRRSBlock> rsBlocks = QRRSBlock.GetRSBlocks(typeNumber, errorCorrectLevel);

            var buffer = new QRBitBuffer();

            for (int i = 0; i < dataList.Count; i++)
            {
                QR8bitByte data = dataList[i];

                buffer.Put((int)data.Mode, 4);
                buffer.Put(data.Length, QRUtil.GetLengthInBits(data.Mode, typeNumber));
                data.Write(buffer);
            }

            // calc num max data.
            int totalDataCount = 0;

            for (var i = 0; i < rsBlocks.Count; i++)
            {
                totalDataCount += rsBlocks[i].DataCount;
            }

            if (buffer.GetLengthInBits() > totalDataCount * 8)
            {
                throw new Error("code length overflow. ("
                                + buffer.GetLengthInBits()
                                + ">"
                                + totalDataCount * 8
                                + ")");
            }

            // end code
            if (buffer.GetLengthInBits() + 4 <= totalDataCount * 8)
            {
                buffer.Put(0, 4);
            }

            // padding
            while (buffer.GetLengthInBits() % 8 != 0)
            {
                buffer.PutBit(false);
            }

            // padding
            while (true)
            {
                if (buffer.GetLengthInBits() >= totalDataCount * 8)
                {
                    break;
                }
                buffer.Put(QRCode.PAD0, 8);

                if (buffer.GetLengthInBits() >= totalDataCount * 8)
                {
                    break;
                }
                buffer.Put(QRCode.PAD1, 8);
            }

            return(CreateBytes(buffer, rsBlocks));
        }