diff options
Diffstat (limited to 'xfa/fxbarcode/qrcode/BC_QRCoderMatrixUtil.cpp')
| -rw-r--r-- | xfa/fxbarcode/qrcode/BC_QRCoderMatrixUtil.cpp | 474 |
1 files changed, 474 insertions, 0 deletions
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderMatrixUtil.cpp b/xfa/fxbarcode/qrcode/BC_QRCoderMatrixUtil.cpp new file mode 100644 index 0000000000..65cf0365cb --- /dev/null +++ b/xfa/fxbarcode/qrcode/BC_QRCoderMatrixUtil.cpp @@ -0,0 +1,474 @@ +// 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 "xfa/fxbarcode/common/BC_CommonByteMatrix.h" +#include "xfa/fxbarcode/qrcode/BC_QRCoder.h" +#include "xfa/fxbarcode/qrcode/BC_QRCoderBitVector.h" +#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h" +#include "xfa/fxbarcode/qrcode/BC_QRCoderMaskUtil.h" +#include "xfa/fxbarcode/qrcode/BC_QRCoderMatrixUtil.h" +#include "xfa/fxbarcode/utils.h" + +const int32_t 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 int32_t CBC_QRCoderMatrixUtil::HORIZONTAL_SEPARATION_PATTERN[1][8] = { + {0, 0, 0, 0, 0, 0, 0, 0}}; +const int32_t CBC_QRCoderMatrixUtil::VERTICAL_SEPARATION_PATTERN[7][1] = { + {0}, {0}, {0}, {0}, {0}, {0}, {0}}; +const int32_t 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 int32_t + CBC_QRCoderMatrixUtil::POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[40][7] = + // NOLINTNEXTLINE + { + {-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 int32_t 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 int32_t CBC_QRCoderMatrixUtil::VERSION_INFO_POLY = 0x1f25; +const int32_t CBC_QRCoderMatrixUtil::TYPE_INFO_POLY = 0x0537; +const int32_t CBC_QRCoderMatrixUtil::TYPE_INFO_MASK_PATTERN = 0x5412; + +void CBC_QRCoderMatrixUtil::ClearMatrix(CBC_CommonByteMatrix* matrix, + int32_t& e) { + if (matrix == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + matrix->clear((uint8_t)-1); +} +void CBC_QRCoderMatrixUtil::BuildMatrix( + CBC_QRCoderBitVector* dataBits, + CBC_QRCoderErrorCorrectionLevel* ecLevel, + int32_t version, + int32_t maskPattern, + CBC_CommonByteMatrix* matrix, + int32_t& 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(int32_t version, + CBC_CommonByteMatrix* matrix, + int32_t& 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, + int32_t maskPattern, + CBC_CommonByteMatrix* matrix, + int32_t& 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 (int32_t i = 0; i < typeInfoBits.Size(); i++) { + int32_t bit = typeInfoBits.At(typeInfoBits.Size() - 1 - i, e); + BC_EXCEPTION_CHECK_ReturnVoid(e); + int32_t x1 = TYPE_INFO_COORDINATES[i][0]; + int32_t y1 = TYPE_INFO_COORDINATES[i][1]; + matrix->Set(x1, y1, bit); + if (i < 8) { + int32_t x2 = matrix->GetWidth() - i - 1; + int32_t y2 = 8; + matrix->Set(x2, y2, bit); + } else { + int32_t x2 = 8; + int32_t y2 = matrix->GetHeight() - 7 + (i - 8); + matrix->Set(x2, y2, bit); + } + } +} +void CBC_QRCoderMatrixUtil::MaybeEmbedVersionInfo(int32_t version, + CBC_CommonByteMatrix* matrix, + int32_t& 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); + int32_t bitIndex = 6 * 3 - 1; + for (int32_t i = 0; i < 6; i++) { + for (int32_t j = 0; j < 3; j++) { + int32_t 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, + int32_t maskPattern, + CBC_CommonByteMatrix* matrix, + int32_t& e) { + if (matrix == NULL || dataBits == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + int32_t bitIndex = 0; + int32_t direction = -1; + int32_t x = matrix->GetWidth() - 1; + int32_t 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 (int32_t i = 0; i < 2; i++) { + int32_t xx = x - i; + if (!IsEmpty(matrix->Get(xx, y))) { + continue; + } + int32_t 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; + } +} +int32_t CBC_QRCoderMatrixUtil::CalculateBCHCode(int32_t value, int32_t poly) { + int32_t msbSetInPoly = FindMSBSet(poly); + value <<= msbSetInPoly - 1; + while (FindMSBSet(value) >= msbSetInPoly) { + value ^= poly << (FindMSBSet(value) - msbSetInPoly); + } + return value; +} +void CBC_QRCoderMatrixUtil::MakeTypeInfoBits( + CBC_QRCoderErrorCorrectionLevel* ecLevel, + int32_t maskPattern, + CBC_QRCoderBitVector* bits, + int32_t& e) { + if (bits == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + if (!CBC_QRCoder::IsValidMaskPattern(maskPattern)) { + e = BCExceptionBadMask; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + int32_t typeInfo = (ecLevel->GetBits() << 3) | maskPattern; + BC_EXCEPTION_CHECK_ReturnVoid(e); + bits->AppendBits(typeInfo, 5, e); + int32_t 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(int32_t version, + CBC_QRCoderBitVector* bits, + int32_t& e) { + if (bits == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + bits->AppendBits(version, 6, e); + BC_EXCEPTION_CHECK_ReturnVoid(e); + int32_t 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(int32_t value) { + return (uint8_t)value == 0xff; +} +FX_BOOL CBC_QRCoderMatrixUtil::IsValidValue(int32_t value) { + return ((uint8_t)value == 0xff || (uint8_t)value == 0x00 || + (uint8_t)value == 0x01); +} +void CBC_QRCoderMatrixUtil::EmbedTimingPatterns(CBC_CommonByteMatrix* matrix, + int32_t& e) { + if (matrix == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + for (int32_t i = 8; i < matrix->GetWidth() - 8; i++) { + int32_t 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, + int32_t& 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( + int32_t xStart, + int32_t yStart, + CBC_CommonByteMatrix* matrix, + int32_t& e) { + if (matrix == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + for (int32_t 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( + int32_t xStart, + int32_t yStart, + CBC_CommonByteMatrix* matrix, + int32_t& e) { + if (matrix == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + for (int32_t 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( + int32_t xStart, + int32_t yStart, + CBC_CommonByteMatrix* matrix, + int32_t& e) { + if (matrix == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + for (int32_t y = 0; y < 5; y++) { + for (int32_t 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( + int32_t xStart, + int32_t yStart, + CBC_CommonByteMatrix* matrix, + int32_t& e) { + if (matrix == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + for (int32_t y = 0; y < 7; y++) { + for (int32_t 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, + int32_t& e) { + if (matrix == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + int32_t 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); + int32_t 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); + int32_t 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( + int32_t version, + CBC_CommonByteMatrix* matrix, + int32_t& e) { + if (matrix == NULL) { + e = BCExceptionNullPointer; + BC_EXCEPTION_CHECK_ReturnVoid(e); + } + if (version < 2) { + return; + } + int32_t index = version - 1; + int32_t const* coordinates = + &(POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[index][0]); + int32_t numCoordinate = 7; + for (int32_t i = 0; i < numCoordinate; i++) { + for (int32_t j = 0; j < numCoordinate; j++) { + int32_t y = coordinates[i]; + int32_t 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); + } + } + } +} +int32_t CBC_QRCoderMatrixUtil::FindMSBSet(int32_t value) { + int32_t numDigits = 0; + while (value != 0) { + value >>= 1; + ++numDigits; + } + return numDigits; +} +CBC_QRCoderMatrixUtil::CBC_QRCoderMatrixUtil() {} +CBC_QRCoderMatrixUtil::~CBC_QRCoderMatrixUtil() {} |