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506 lines
16 KiB
506 lines
16 KiB
// Copyright 2014 PDFium Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
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// Original code is licensed as follows: |
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/* |
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* Copyright 2008 ZXing authors |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#include "xfa/fxbarcode/common/BC_CommonByteMatrix.h" |
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#include "xfa/fxbarcode/qrcode/BC_QRCoder.h" |
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#include "xfa/fxbarcode/qrcode/BC_QRCoderBitVector.h" |
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#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h" |
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#include "xfa/fxbarcode/qrcode/BC_QRCoderMaskUtil.h" |
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#include "xfa/fxbarcode/qrcode/BC_QRCoderMatrixUtil.h" |
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#include "xfa/fxbarcode/utils.h" |
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const int32_t CBC_QRCoderMatrixUtil::POSITION_DETECTION_PATTERN[7][7] = { |
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{1, 1, 1, 1, 1, 1, 1}, {1, 0, 0, 0, 0, 0, 1}, {1, 0, 1, 1, 1, 0, 1}, |
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{1, 0, 1, 1, 1, 0, 1}, {1, 0, 1, 1, 1, 0, 1}, {1, 0, 0, 0, 0, 0, 1}, |
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{1, 1, 1, 1, 1, 1, 1}}; |
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const int32_t CBC_QRCoderMatrixUtil::HORIZONTAL_SEPARATION_PATTERN[1][8] = { |
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{0, 0, 0, 0, 0, 0, 0, 0}}; |
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const int32_t CBC_QRCoderMatrixUtil::VERTICAL_SEPARATION_PATTERN[7][1] = { |
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{0}, {0}, {0}, {0}, {0}, {0}, {0}}; |
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const int32_t CBC_QRCoderMatrixUtil::POSITION_ADJUSTMENT_PATTERN[5][5] = { |
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{1, 1, 1, 1, 1}, |
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{1, 0, 0, 0, 1}, |
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{1, 0, 1, 0, 1}, |
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{1, 0, 0, 0, 1}, |
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{1, 1, 1, 1, 1}}; |
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const int32_t |
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CBC_QRCoderMatrixUtil::POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[40][7] = |
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// NOLINTNEXTLINE |
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{ |
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{-1, -1, -1, -1, -1, -1, -1}, {6, 18, -1, -1, -1, -1, -1}, |
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{6, 22, -1, -1, -1, -1, -1}, {6, 26, -1, -1, -1, -1, -1}, |
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{6, 30, -1, -1, -1, -1, -1}, {6, 34, -1, -1, -1, -1, -1}, |
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{6, 22, 38, -1, -1, -1, -1}, {6, 24, 42, -1, -1, -1, -1}, |
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{6, 26, 46, -1, -1, -1, -1}, {6, 28, 50, -1, -1, -1, -1}, |
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{6, 30, 54, -1, -1, -1, -1}, {6, 32, 58, -1, -1, -1, -1}, |
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{6, 34, 62, -1, -1, -1, -1}, {6, 26, 46, 66, -1, -1, -1}, |
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{6, 26, 48, 70, -1, -1, -1}, {6, 26, 50, 74, -1, -1, -1}, |
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{6, 30, 54, 78, -1, -1, -1}, {6, 30, 56, 82, -1, -1, -1}, |
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{6, 30, 58, 86, -1, -1, -1}, {6, 34, 62, 90, -1, -1, -1}, |
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{6, 28, 50, 72, 94, -1, -1}, {6, 26, 50, 74, 98, -1, -1}, |
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{6, 30, 54, 78, 102, -1, -1}, {6, 28, 54, 80, 106, -1, -1}, |
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{6, 32, 58, 84, 110, -1, -1}, {6, 30, 58, 86, 114, -1, -1}, |
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{6, 34, 62, 90, 118, -1, -1}, {6, 26, 50, 74, 98, 122, -1}, |
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{6, 30, 54, 78, 102, 126, -1}, {6, 26, 52, 78, 104, 130, -1}, |
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{6, 30, 56, 82, 108, 134, -1}, {6, 34, 60, 86, 112, 138, -1}, |
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{6, 30, 58, 86, 114, 142, -1}, {6, 34, 62, 90, 118, 146, -1}, |
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{6, 30, 54, 78, 102, 126, 150}, {6, 24, 50, 76, 102, 128, 154}, |
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{6, 28, 54, 80, 106, 132, 158}, {6, 32, 58, 84, 110, 136, 162}, |
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{6, 26, 54, 82, 110, 138, 166}, {6, 30, 58, 86, 114, 142, 170}, |
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}; |
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const int32_t CBC_QRCoderMatrixUtil::TYPE_INFO_COORDINATES[15][2] = { |
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{8, 0}, {8, 1}, {8, 2}, {8, 3}, {8, 4}, {8, 5}, {8, 7}, {8, 8}, |
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{7, 8}, {5, 8}, {4, 8}, {3, 8}, {2, 8}, {1, 8}, {0, 8}, |
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}; |
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const int32_t CBC_QRCoderMatrixUtil::VERSION_INFO_POLY = 0x1f25; |
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const int32_t CBC_QRCoderMatrixUtil::TYPE_INFO_POLY = 0x0537; |
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const int32_t CBC_QRCoderMatrixUtil::TYPE_INFO_MASK_PATTERN = 0x5412; |
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void CBC_QRCoderMatrixUtil::ClearMatrix(CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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matrix->clear((uint8_t)-1); |
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} |
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void CBC_QRCoderMatrixUtil::BuildMatrix( |
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CBC_QRCoderBitVector* dataBits, |
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CBC_QRCoderErrorCorrectionLevel* ecLevel, |
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int32_t version, |
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int32_t maskPattern, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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ClearMatrix(matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedBasicPatterns(version, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedTypeInfo(ecLevel, maskPattern, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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MaybeEmbedVersionInfo(version, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedDataBits(dataBits, maskPattern, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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} |
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void CBC_QRCoderMatrixUtil::EmbedBasicPatterns(int32_t version, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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EmbedPositionDetectionPatternsAndSeparators(matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedDarkDotAtLeftBottomCorner(matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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MaybeEmbedPositionAdjustmentPatterns(version, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedTimingPatterns(matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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} |
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void CBC_QRCoderMatrixUtil::EmbedTypeInfo( |
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CBC_QRCoderErrorCorrectionLevel* ecLevel, |
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int32_t maskPattern, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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CBC_QRCoderBitVector typeInfoBits; |
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typeInfoBits.Init(); |
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MakeTypeInfoBits(ecLevel, maskPattern, &typeInfoBits, e); |
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if (e != BCExceptionNO) |
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return; |
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for (int32_t i = 0; i < typeInfoBits.Size(); i++) { |
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int32_t bit = typeInfoBits.At(typeInfoBits.Size() - 1 - i, e); |
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if (e != BCExceptionNO) |
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return; |
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int32_t x1 = TYPE_INFO_COORDINATES[i][0]; |
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int32_t y1 = TYPE_INFO_COORDINATES[i][1]; |
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matrix->Set(x1, y1, bit); |
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if (i < 8) { |
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int32_t x2 = matrix->GetWidth() - i - 1; |
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int32_t y2 = 8; |
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matrix->Set(x2, y2, bit); |
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} else { |
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int32_t x2 = 8; |
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int32_t y2 = matrix->GetHeight() - 7 + (i - 8); |
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matrix->Set(x2, y2, bit); |
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} |
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} |
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} |
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void CBC_QRCoderMatrixUtil::MaybeEmbedVersionInfo(int32_t version, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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if (version < 7) { |
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return; |
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} |
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CBC_QRCoderBitVector versionInfoBits; |
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versionInfoBits.Init(); |
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MakeVersionInfoBits(version, &versionInfoBits, e); |
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if (e != BCExceptionNO) |
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return; |
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int32_t bitIndex = 6 * 3 - 1; |
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for (int32_t i = 0; i < 6; i++) { |
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for (int32_t j = 0; j < 3; j++) { |
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int32_t bit = versionInfoBits.At(bitIndex, e); |
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if (e != BCExceptionNO) |
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return; |
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bitIndex--; |
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matrix->Set(i, matrix->GetHeight() - 11 + j, bit); |
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matrix->Set(matrix->GetHeight() - 11 + j, i, bit); |
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} |
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} |
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} |
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void CBC_QRCoderMatrixUtil::EmbedDataBits(CBC_QRCoderBitVector* dataBits, |
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int32_t maskPattern, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix || !dataBits) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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int32_t bitIndex = 0; |
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int32_t direction = -1; |
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int32_t x = matrix->GetWidth() - 1; |
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int32_t y = matrix->GetHeight() - 1; |
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while (x > 0) { |
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if (x == 6) { |
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x -= 1; |
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} |
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while (y >= 0 && y < matrix->GetHeight()) { |
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if (y == 6) { |
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y += direction; |
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continue; |
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} |
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for (int32_t i = 0; i < 2; i++) { |
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int32_t xx = x - i; |
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if (!IsEmpty(matrix->Get(xx, y))) { |
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continue; |
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} |
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int32_t bit; |
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if (bitIndex < dataBits->Size()) { |
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bit = dataBits->At(bitIndex, e); |
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if (e != BCExceptionNO) |
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return; |
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bitIndex++; |
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} else { |
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bit = 0; |
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} |
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if (maskPattern != -1) { |
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bool bol = CBC_QRCoderMaskUtil::GetDataMaskBit(maskPattern, xx, y, e); |
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if (e != BCExceptionNO) |
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return; |
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if (bol) { |
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bit ^= 0x01; |
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} |
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} |
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matrix->Set(xx, y, bit); |
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} |
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y += direction; |
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} |
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direction = -direction; |
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y += direction; |
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x -= 2; |
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} |
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if (bitIndex != dataBits->Size()) { |
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return; |
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} |
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} |
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int32_t CBC_QRCoderMatrixUtil::CalculateBCHCode(int32_t value, int32_t poly) { |
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int32_t msbSetInPoly = FindMSBSet(poly); |
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value <<= msbSetInPoly - 1; |
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while (FindMSBSet(value) >= msbSetInPoly) { |
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value ^= poly << (FindMSBSet(value) - msbSetInPoly); |
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} |
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return value; |
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} |
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void CBC_QRCoderMatrixUtil::MakeTypeInfoBits( |
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CBC_QRCoderErrorCorrectionLevel* ecLevel, |
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int32_t maskPattern, |
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CBC_QRCoderBitVector* bits, |
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int32_t& e) { |
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if (!bits) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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if (!CBC_QRCoder::IsValidMaskPattern(maskPattern)) { |
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e = BCExceptionBadMask; |
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return; |
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} |
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int32_t typeInfo = (ecLevel->GetBits() << 3) | maskPattern; |
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if (e != BCExceptionNO) |
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return; |
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bits->AppendBits(typeInfo, 5, e); |
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int32_t bchCode = CalculateBCHCode(typeInfo, TYPE_INFO_POLY); |
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if (e != BCExceptionNO) |
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return; |
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bits->AppendBits(bchCode, 10, e); |
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CBC_QRCoderBitVector maskBits; |
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maskBits.Init(); |
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maskBits.AppendBits(TYPE_INFO_MASK_PATTERN, 15, e); |
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if (e != BCExceptionNO) |
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return; |
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bits->XOR(&maskBits, e); |
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if (e != BCExceptionNO) |
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return; |
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if (bits->Size() != 15) |
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e = BCExceptionBitSizeNot15; |
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} |
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void CBC_QRCoderMatrixUtil::MakeVersionInfoBits(int32_t version, |
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CBC_QRCoderBitVector* bits, |
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int32_t& e) { |
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if (!bits) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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bits->AppendBits(version, 6, e); |
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if (e != BCExceptionNO) |
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return; |
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int32_t bchCode = CalculateBCHCode(version, VERSION_INFO_POLY); |
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bits->AppendBits(bchCode, 12, e); |
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if (e != BCExceptionNO) |
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return; |
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if (bits->Size() != 18) |
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e = BCExceptionBitSizeNot18; |
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} |
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bool CBC_QRCoderMatrixUtil::IsEmpty(int32_t value) { |
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return (uint8_t)value == 0xff; |
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} |
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bool CBC_QRCoderMatrixUtil::IsValidValue(int32_t value) { |
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return ((uint8_t)value == 0xff || (uint8_t)value == 0x00 || |
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(uint8_t)value == 0x01); |
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} |
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void CBC_QRCoderMatrixUtil::EmbedTimingPatterns(CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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for (int32_t i = 8; i < matrix->GetWidth() - 8; i++) { |
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int32_t bit = (i + 1) % 2; |
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if (!IsValidValue(matrix->Get(i, 6))) { |
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e = BCExceptionInvalidateImageData; |
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return; |
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} |
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if (IsEmpty(matrix->Get(i, 6))) { |
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matrix->Set(i, 6, bit); |
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} |
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if (!IsValidValue(matrix->Get(6, i))) { |
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e = BCExceptionInvalidateImageData; |
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return; |
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} |
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if (IsEmpty(matrix->Get(6, i))) { |
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matrix->Set(6, i, bit); |
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} |
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} |
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} |
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void CBC_QRCoderMatrixUtil::EmbedDarkDotAtLeftBottomCorner( |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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if (matrix->Get(8, matrix->GetHeight() - 8) == 0) { |
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e = BCExceptionHeight_8BeZero; |
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return; |
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} |
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matrix->Set(8, matrix->GetHeight() - 8, 1); |
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} |
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void CBC_QRCoderMatrixUtil::EmbedHorizontalSeparationPattern( |
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int32_t xStart, |
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int32_t yStart, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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for (int32_t x = 0; x < 8; x++) { |
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if (!IsEmpty(matrix->Get(xStart + x, yStart))) { |
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e = BCExceptionInvalidateData; |
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return; |
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} |
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matrix->Set(xStart + x, yStart, HORIZONTAL_SEPARATION_PATTERN[0][x]); |
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} |
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} |
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void CBC_QRCoderMatrixUtil::EmbedVerticalSeparationPattern( |
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int32_t xStart, |
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int32_t yStart, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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for (int32_t y = 0; y < 7; y++) { |
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if (!IsEmpty(matrix->Get(xStart, yStart + y))) { |
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e = BCExceptionInvalidateData; |
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return; |
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} |
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matrix->Set(xStart, yStart + y, VERTICAL_SEPARATION_PATTERN[y][0]); |
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} |
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} |
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void CBC_QRCoderMatrixUtil::EmbedPositionAdjustmentPattern( |
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int32_t xStart, |
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int32_t yStart, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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if (e != BCExceptionNO) |
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return; |
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} |
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for (int32_t y = 0; y < 5; y++) { |
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for (int32_t x = 0; x < 5; x++) { |
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if (!IsEmpty(matrix->Get(xStart + x, y + yStart))) { |
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e = BCExceptionInvalidateData; |
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return; |
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} |
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matrix->Set(xStart + x, yStart + y, POSITION_ADJUSTMENT_PATTERN[y][x]); |
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} |
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} |
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} |
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void CBC_QRCoderMatrixUtil::EmbedPositionDetectionPattern( |
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int32_t xStart, |
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int32_t yStart, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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for (int32_t y = 0; y < 7; y++) { |
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for (int32_t x = 0; x < 7; x++) { |
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if (!IsEmpty(matrix->Get(xStart + x, yStart + y))) { |
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e = BCExceptionInvalidateData; |
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return; |
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} |
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matrix->Set(xStart + x, yStart + y, POSITION_DETECTION_PATTERN[y][x]); |
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} |
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} |
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} |
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void CBC_QRCoderMatrixUtil::EmbedPositionDetectionPatternsAndSeparators( |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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int32_t pdpWidth = 7; |
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EmbedPositionDetectionPattern(0, 0, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedPositionDetectionPattern(matrix->GetWidth() - pdpWidth, 0, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedPositionDetectionPattern(0, matrix->GetWidth() - pdpWidth, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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int32_t hspWidth = 8; |
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EmbedHorizontalSeparationPattern(0, hspWidth - 1, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedHorizontalSeparationPattern(matrix->GetWidth() - hspWidth, hspWidth - 1, |
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matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedHorizontalSeparationPattern(0, matrix->GetWidth() - hspWidth, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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int32_t vspSize = 7; |
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EmbedVerticalSeparationPattern(vspSize, 0, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedVerticalSeparationPattern(matrix->GetHeight() - vspSize - 1, 0, matrix, |
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e); |
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if (e != BCExceptionNO) |
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return; |
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EmbedVerticalSeparationPattern(vspSize, matrix->GetHeight() - vspSize, matrix, |
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e); |
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if (e != BCExceptionNO) |
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return; |
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} |
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void CBC_QRCoderMatrixUtil::MaybeEmbedPositionAdjustmentPatterns( |
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int32_t version, |
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CBC_CommonByteMatrix* matrix, |
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int32_t& e) { |
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if (!matrix) { |
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e = BCExceptionNullPointer; |
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return; |
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} |
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if (version < 2) { |
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return; |
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} |
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int32_t index = version - 1; |
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int32_t const* coordinates = |
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&(POSITION_ADJUSTMENT_PATTERN_COORDINATE_TABLE[index][0]); |
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int32_t numCoordinate = 7; |
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for (int32_t i = 0; i < numCoordinate; i++) { |
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for (int32_t j = 0; j < numCoordinate; j++) { |
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int32_t y = coordinates[i]; |
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int32_t x = coordinates[j]; |
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if (x == -1 || y == -1) { |
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continue; |
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} |
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if (IsEmpty(matrix->Get(x, y))) { |
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EmbedPositionAdjustmentPattern(x - 2, y - 2, matrix, e); |
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if (e != BCExceptionNO) |
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return; |
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} |
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} |
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} |
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} |
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int32_t CBC_QRCoderMatrixUtil::FindMSBSet(int32_t value) { |
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int32_t numDigits = 0; |
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while (value != 0) { |
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value >>= 1; |
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++numDigits; |
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} |
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return numDigits; |
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} |
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CBC_QRCoderMatrixUtil::CBC_QRCoderMatrixUtil() {} |
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CBC_QRCoderMatrixUtil::~CBC_QRCoderMatrixUtil() {}
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