// 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 "../barcode.h" | |
#include "BC_CommonBitArray.h" | |
#include "BC_CommonBitMatrix.h" | |
CBC_CommonBitMatrix::CBC_CommonBitMatrix() | |
{ | |
m_width = 0; | |
m_height = 0; | |
m_rowSize = 0; | |
m_bits = NULL; | |
} | |
void CBC_CommonBitMatrix::Init(FX_INT32 dimension) | |
{ | |
m_width = dimension; | |
m_height = dimension; | |
FX_INT32 rowSize = (m_height + 31) >> 5; | |
m_rowSize = rowSize; | |
m_bits = FX_Alloc(FX_INT32, m_rowSize * m_height); | |
FXSYS_memset32(m_bits, 0, m_rowSize * m_height * sizeof(FX_INT32)); | |
} | |
void CBC_CommonBitMatrix::Init(FX_INT32 width, FX_INT32 height) | |
{ | |
m_width = width; | |
m_height = height; | |
FX_INT32 rowSize = (width + 31) >> 5; | |
m_rowSize = rowSize; | |
m_bits = FX_Alloc(FX_INT32, m_rowSize * m_height); | |
FXSYS_memset32(m_bits, 0, m_rowSize * m_height * sizeof(FX_INT32)); | |
} | |
CBC_CommonBitMatrix::~CBC_CommonBitMatrix() | |
{ | |
if (m_bits != NULL) { | |
FX_Free(m_bits); | |
} | |
m_bits = NULL; | |
m_height = m_width = m_rowSize = 0; | |
} | |
FX_BOOL CBC_CommonBitMatrix::Get(FX_INT32 x, FX_INT32 y) | |
{ | |
FX_INT32 offset = y * m_rowSize + (x >> 5); | |
if (offset >= m_rowSize * m_height || offset < 0) { | |
return false; | |
} | |
return ((((FX_DWORD)m_bits[offset]) >> (x & 0x1f)) & 1) != 0; | |
} | |
FX_INT32* CBC_CommonBitMatrix::GetBits() | |
{ | |
return m_bits; | |
} | |
void CBC_CommonBitMatrix::Set(FX_INT32 x, FX_INT32 y) | |
{ | |
FX_INT32 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(FX_INT32 x, FX_INT32 y) | |
{ | |
FX_INT32 offset = y * m_rowSize + (x >> 5); | |
m_bits[offset] ^= 1 << (x & 0x1f); | |
} | |
void CBC_CommonBitMatrix::Clear() | |
{ | |
FXSYS_memset32(m_bits, 0, m_rowSize * m_height * sizeof(FX_INT32)); | |
} | |
void CBC_CommonBitMatrix::SetRegion(FX_INT32 left, FX_INT32 top, FX_INT32 width, FX_INT32 height, FX_INT32 &e) | |
{ | |
if (top < 0 || left < 0) { | |
e = BCExceptionLeftAndTopMustBeNonnegative; | |
return; | |
} | |
if (height < 1 || width < 1) { | |
e = BCExceptionHeightAndWidthMustBeAtLeast1; | |
return; | |
} | |
FX_INT32 right = left + width; | |
FX_INT32 bottom = top + height; | |
if (m_height < bottom || m_width < right) { | |
e = BCExceptionRegionMustFitInsideMatrix; | |
return; | |
} | |
FX_INT32 y; | |
for (y = top; y < bottom; y++) { | |
FX_INT32 offset = y * m_rowSize; | |
FX_INT32 x; | |
for (x = left; x < right; x++) { | |
m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f); | |
} | |
} | |
} | |
CBC_CommonBitArray* CBC_CommonBitMatrix::GetRow(FX_INT32 y, CBC_CommonBitArray* row) | |
{ | |
CBC_CommonBitArray* rowArray = NULL; | |
if (row == NULL || row->GetSize() < m_width) { | |
rowArray = FX_NEW CBC_CommonBitArray(m_width); | |
} else { | |
rowArray = FX_NEW CBC_CommonBitArray(row); | |
} | |
FX_INT32 offset = y * m_rowSize; | |
FX_INT32 x; | |
for (x = 0; x < m_rowSize; x++) { | |
rowArray->SetBulk(x << 5, m_bits[offset + x]); | |
} | |
return rowArray; | |
} | |
void CBC_CommonBitMatrix::SetRow(FX_INT32 y, CBC_CommonBitArray* row) | |
{ | |
FX_INT32 l = y * m_rowSize; | |
for (FX_INT32 i = 0; i < m_rowSize; i++) { | |
m_bits[l] = row->GetBitArray()[i]; | |
l++; | |
} | |
} | |
void CBC_CommonBitMatrix::SetCol(FX_INT32 y, CBC_CommonBitArray* col) | |
{ | |
for (FX_INT32 i = 0; i < col->GetBits().GetSize(); i++) { | |
m_bits[i * m_rowSize + y] = col->GetBitArray()[i]; | |
} | |
} | |
FX_INT32 CBC_CommonBitMatrix::GetWidth() | |
{ | |
return m_width; | |
} | |
FX_INT32 CBC_CommonBitMatrix::GetHeight() | |
{ | |
return m_height; | |
} | |
FX_INT32 CBC_CommonBitMatrix::GetRowSize() | |
{ | |
return m_rowSize; | |
} | |
FX_INT32 CBC_CommonBitMatrix::GetDimension(FX_INT32 &e) | |
{ | |
if (m_width != m_height) { | |
e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix; | |
return 0; | |
} | |
return m_width; | |
} |