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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 // Original code is licensed as follows: | |
| 7 /* | |
| 8 * Copyright 2007 ZXing authors | |
| 9 * | |
| 10 * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 11 * you may not use this file except in compliance with the License. | |
| 12 * You may obtain a copy of the License at | |
| 13 * | |
| 14 * http://www.apache.org/licenses/LICENSE-2.0 | |
| 15 * | |
| 16 * Unless required by applicable law or agreed to in writing, software | |
| 17 * distributed under the License is distributed on an "AS IS" BASIS, | |
| 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 19 * See the License for the specific language governing permissions and | |
| 20 * limitations under the License. | |
| 21 */ | |
| 22 | |
| 23 #include "xfa/src/fxbarcode/common/BC_CommonBitArray.h" | |
| 24 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h" | |
| 25 #include "xfa/src/fxbarcode/utils.h" | |
| 26 | |
| 27 CBC_CommonBitMatrix::CBC_CommonBitMatrix() { | |
| 28 m_width = 0; | |
| 29 m_height = 0; | |
| 30 m_rowSize = 0; | |
| 31 m_bits = NULL; | |
| 32 } | |
| 33 void CBC_CommonBitMatrix::Init(int32_t dimension) { | |
| 34 m_width = dimension; | |
| 35 m_height = dimension; | |
| 36 int32_t rowSize = (m_height + 31) >> 5; | |
| 37 m_rowSize = rowSize; | |
| 38 m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height); | |
| 39 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); | |
| 40 } | |
| 41 void CBC_CommonBitMatrix::Init(int32_t width, int32_t height) { | |
| 42 m_width = width; | |
| 43 m_height = height; | |
| 44 int32_t rowSize = (width + 31) >> 5; | |
| 45 m_rowSize = rowSize; | |
| 46 m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height); | |
| 47 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); | |
| 48 } | |
| 49 CBC_CommonBitMatrix::~CBC_CommonBitMatrix() { | |
| 50 FX_Free(m_bits); | |
| 51 } | |
| 52 FX_BOOL CBC_CommonBitMatrix::Get(int32_t x, int32_t y) { | |
| 53 int32_t offset = y * m_rowSize + (x >> 5); | |
| 54 if (offset >= m_rowSize * m_height || offset < 0) { | |
| 55 return false; | |
| 56 } | |
| 57 return ((((FX_DWORD)m_bits[offset]) >> (x & 0x1f)) & 1) != 0; | |
| 58 } | |
| 59 int32_t* CBC_CommonBitMatrix::GetBits() { | |
| 60 return m_bits; | |
| 61 } | |
| 62 void CBC_CommonBitMatrix::Set(int32_t x, int32_t y) { | |
| 63 int32_t offset = y * m_rowSize + (x >> 5); | |
| 64 if (offset >= m_rowSize * m_height || offset < 0) { | |
| 65 return; | |
| 66 } | |
| 67 m_bits[offset] |= 1 << (x & 0x1f); | |
| 68 } | |
| 69 void CBC_CommonBitMatrix::Flip(int32_t x, int32_t y) { | |
| 70 int32_t offset = y * m_rowSize + (x >> 5); | |
| 71 m_bits[offset] ^= 1 << (x & 0x1f); | |
| 72 } | |
| 73 void CBC_CommonBitMatrix::Clear() { | |
| 74 FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t)); | |
| 75 } | |
| 76 void CBC_CommonBitMatrix::SetRegion(int32_t left, | |
| 77 int32_t top, | |
| 78 int32_t width, | |
| 79 int32_t height, | |
| 80 int32_t& e) { | |
| 81 if (top < 0 || left < 0) { | |
| 82 e = BCExceptionLeftAndTopMustBeNonnegative; | |
| 83 return; | |
| 84 } | |
| 85 if (height < 1 || width < 1) { | |
| 86 e = BCExceptionHeightAndWidthMustBeAtLeast1; | |
| 87 return; | |
| 88 } | |
| 89 int32_t right = left + width; | |
| 90 int32_t bottom = top + height; | |
| 91 if (m_height < bottom || m_width < right) { | |
| 92 e = BCExceptionRegionMustFitInsideMatrix; | |
| 93 return; | |
| 94 } | |
| 95 int32_t y; | |
| 96 for (y = top; y < bottom; y++) { | |
| 97 int32_t offset = y * m_rowSize; | |
| 98 int32_t x; | |
| 99 for (x = left; x < right; x++) { | |
| 100 m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f); | |
| 101 } | |
| 102 } | |
| 103 } | |
| 104 CBC_CommonBitArray* CBC_CommonBitMatrix::GetRow(int32_t y, | |
| 105 CBC_CommonBitArray* row) { | |
| 106 CBC_CommonBitArray* rowArray = NULL; | |
| 107 if (row == NULL || row->GetSize() < m_width) { | |
| 108 rowArray = new CBC_CommonBitArray(m_width); | |
| 109 } else { | |
| 110 rowArray = new CBC_CommonBitArray(row); | |
| 111 } | |
| 112 int32_t offset = y * m_rowSize; | |
| 113 int32_t x; | |
| 114 for (x = 0; x < m_rowSize; x++) { | |
| 115 rowArray->SetBulk(x << 5, m_bits[offset + x]); | |
| 116 } | |
| 117 return rowArray; | |
| 118 } | |
| 119 void CBC_CommonBitMatrix::SetRow(int32_t y, CBC_CommonBitArray* row) { | |
| 120 int32_t l = y * m_rowSize; | |
| 121 for (int32_t i = 0; i < m_rowSize; i++) { | |
| 122 m_bits[l] = row->GetBitArray()[i]; | |
| 123 l++; | |
| 124 } | |
| 125 } | |
| 126 void CBC_CommonBitMatrix::SetCol(int32_t y, CBC_CommonBitArray* col) { | |
| 127 for (int32_t i = 0; i < col->GetBits().GetSize(); i++) { | |
| 128 m_bits[i * m_rowSize + y] = col->GetBitArray()[i]; | |
| 129 } | |
| 130 } | |
| 131 int32_t CBC_CommonBitMatrix::GetWidth() { | |
| 132 return m_width; | |
| 133 } | |
| 134 int32_t CBC_CommonBitMatrix::GetHeight() { | |
| 135 return m_height; | |
| 136 } | |
| 137 int32_t CBC_CommonBitMatrix::GetRowSize() { | |
| 138 return m_rowSize; | |
| 139 } | |
| 140 int32_t CBC_CommonBitMatrix::GetDimension(int32_t& e) { | |
| 141 if (m_width != m_height) { | |
| 142 e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix; | |
| 143 return 0; | |
| 144 } | |
| 145 return m_width; | |
| 146 } | |
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