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// 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 2007 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 "fxbarcode/common/BC_CommonBitMatrix.h"
#include <algorithm>
#include <iterator>
#include "fxbarcode/common/BC_CommonBitArray.h"
#include "fxbarcode/utils.h"
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
CBC_CommonBitMatrix::CBC_CommonBitMatrix() {}
void CBC_CommonBitMatrix::Init(int32_t dimension) {
m_width = dimension;
m_height = dimension;
int32_t rowSize = (m_height + 31) >> 5;
m_rowSize = rowSize;
m_bits = pdfium::Vector2D<int32_t>(m_rowSize, m_height);
}
void CBC_CommonBitMatrix::Init(int32_t width, int32_t height) {
m_width = width;
m_height = height;
int32_t rowSize = (width + 31) >> 5;
m_rowSize = rowSize;
m_bits = pdfium::Vector2D<int32_t>(m_rowSize, m_height);
}
CBC_CommonBitMatrix::~CBC_CommonBitMatrix() = default;
bool CBC_CommonBitMatrix::Get(int32_t x, int32_t y) const {
int32_t offset = y * m_rowSize + (x >> 5);
if (offset >= m_rowSize * m_height || offset < 0)
return false;
return ((((uint32_t)m_bits[offset]) >> (x & 0x1f)) & 1) != 0;
}
void CBC_CommonBitMatrix::Set(int32_t x, int32_t y) {
int32_t offset = y * m_rowSize + (x >> 5);
if (offset >= m_rowSize * m_height || offset < 0)
return;
m_bits[offset] |= 1 << (x & 0x1f);
}
void CBC_CommonBitMatrix::Flip(int32_t x, int32_t y) {
int32_t offset = y * m_rowSize + (x >> 5);
m_bits[offset] ^= 1 << (x & 0x1f);
}
void CBC_CommonBitMatrix::Clear() {
std::fill(std::begin(m_bits), std::end(m_bits), 0);
}
bool CBC_CommonBitMatrix::SetRegion(int32_t left,
int32_t top,
int32_t width,
int32_t height) {
if (top < 0 || left < 0 || height < 1 || width < 1)
return false;
int32_t right = left + width;
int32_t bottom = top + height;
if (m_height < bottom || m_width < right)
return false;
for (int32_t y = top; y < bottom; y++) {
int32_t offset = y * m_rowSize;
for (int32_t x = left; x < right; x++)
m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f);
}
return true;
}
void CBC_CommonBitMatrix::SetRow(int32_t y, CBC_CommonBitArray* row) {
int32_t l = y * m_rowSize;
for (int32_t i = 0; i < m_rowSize; i++) {
m_bits[l] = row->GetBitArray()[i];
l++;
}
}
void CBC_CommonBitMatrix::SetCol(int32_t y, CBC_CommonBitArray* col) {
for (size_t i = 0; i < col->GetBits().size(); ++i)
m_bits[i * m_rowSize + y] = col->GetBitArray()[i];
}
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