// 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 2007 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_CommonBitArray.h"
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#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
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#include "xfa/fxbarcode/utils.h"
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CBC_CommonBitMatrix::CBC_CommonBitMatrix() {
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m_width = 0;
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m_height = 0;
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m_rowSize = 0;
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m_bits = nullptr;
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}
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void CBC_CommonBitMatrix::Init(int32_t dimension) {
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m_width = dimension;
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m_height = dimension;
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int32_t rowSize = (m_height + 31) >> 5;
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m_rowSize = rowSize;
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m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height);
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FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
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}
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void CBC_CommonBitMatrix::Init(int32_t width, int32_t height) {
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m_width = width;
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m_height = height;
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int32_t rowSize = (width + 31) >> 5;
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m_rowSize = rowSize;
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m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height);
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FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
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}
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CBC_CommonBitMatrix::~CBC_CommonBitMatrix() {
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FX_Free(m_bits);
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}
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FX_BOOL CBC_CommonBitMatrix::Get(int32_t x, int32_t y) {
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int32_t offset = y * m_rowSize + (x >> 5);
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if (offset >= m_rowSize * m_height || offset < 0) {
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return false;
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}
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return ((((uint32_t)m_bits[offset]) >> (x & 0x1f)) & 1) != 0;
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}
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int32_t* CBC_CommonBitMatrix::GetBits() {
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return m_bits;
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}
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void CBC_CommonBitMatrix::Set(int32_t x, int32_t y) {
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int32_t offset = y * m_rowSize + (x >> 5);
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if (offset >= m_rowSize * m_height || offset < 0) {
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return;
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}
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m_bits[offset] |= 1 << (x & 0x1f);
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}
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void CBC_CommonBitMatrix::Flip(int32_t x, int32_t y) {
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int32_t offset = y * m_rowSize + (x >> 5);
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m_bits[offset] ^= 1 << (x & 0x1f);
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}
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void CBC_CommonBitMatrix::Clear() {
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FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
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}
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void CBC_CommonBitMatrix::SetRegion(int32_t left,
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int32_t top,
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int32_t width,
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int32_t height,
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int32_t& e) {
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if (top < 0 || left < 0) {
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e = BCExceptionLeftAndTopMustBeNonnegative;
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return;
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}
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if (height < 1 || width < 1) {
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e = BCExceptionHeightAndWidthMustBeAtLeast1;
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return;
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}
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int32_t right = left + width;
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int32_t bottom = top + height;
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if (m_height < bottom || m_width < right) {
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e = BCExceptionRegionMustFitInsideMatrix;
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return;
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}
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int32_t y;
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for (y = top; y < bottom; y++) {
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int32_t offset = y * m_rowSize;
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int32_t x;
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for (x = left; x < right; x++) {
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m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f);
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}
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}
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}
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CBC_CommonBitArray* CBC_CommonBitMatrix::GetRow(int32_t y,
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CBC_CommonBitArray* row) {
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CBC_CommonBitArray* rowArray = nullptr;
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if (!row || row->GetSize() < m_width) {
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rowArray = new CBC_CommonBitArray(m_width);
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} else {
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rowArray = new CBC_CommonBitArray(row);
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}
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int32_t offset = y * m_rowSize;
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int32_t x;
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for (x = 0; x < m_rowSize; x++) {
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rowArray->SetBulk(x << 5, m_bits[offset + x]);
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}
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return rowArray;
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}
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void CBC_CommonBitMatrix::SetRow(int32_t y, CBC_CommonBitArray* row) {
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int32_t l = y * m_rowSize;
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for (int32_t i = 0; i < m_rowSize; i++) {
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m_bits[l] = row->GetBitArray()[i];
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l++;
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}
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}
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void CBC_CommonBitMatrix::SetCol(int32_t y, CBC_CommonBitArray* col) {
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for (int32_t i = 0; i < col->GetBits().GetSize(); i++) {
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m_bits[i * m_rowSize + y] = col->GetBitArray()[i];
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}
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}
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int32_t CBC_CommonBitMatrix::GetWidth() {
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return m_width;
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}
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int32_t CBC_CommonBitMatrix::GetHeight() {
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return m_height;
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}
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int32_t CBC_CommonBitMatrix::GetRowSize() {
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return m_rowSize;
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}
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int32_t CBC_CommonBitMatrix::GetDimension(int32_t& e) {
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if (m_width != m_height) {
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e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix;
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return 0;
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}
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return m_width;
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}
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