// 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" | |
CBC_CommonBitArray::CBC_CommonBitArray(CBC_CommonBitArray* array) | |
{ | |
m_size = array->GetSize(); | |
m_bits.Copy(array->GetBits()); | |
} | |
CBC_CommonBitArray::CBC_CommonBitArray() | |
{ | |
m_bits.SetSize(1); | |
m_size = 0; | |
} | |
CBC_CommonBitArray::CBC_CommonBitArray(FX_INT32 size) | |
{ | |
m_bits.SetSize((size + 31) >> 5); | |
m_size = size; | |
} | |
CBC_CommonBitArray::~CBC_CommonBitArray() | |
{ | |
m_size = 0; | |
} | |
FX_INT32 CBC_CommonBitArray::GetSize() | |
{ | |
return m_size; | |
} | |
CFX_Int32Array& CBC_CommonBitArray::GetBits() | |
{ | |
return m_bits; | |
} | |
FX_INT32 CBC_CommonBitArray::GetSizeInBytes() | |
{ | |
return (m_size + 7) >> 3; | |
} | |
FX_BOOL CBC_CommonBitArray::Get(FX_INT32 i) | |
{ | |
return (m_bits[i >> 5] & (1 << (i & 0x1f))) != 0; | |
} | |
void CBC_CommonBitArray::Set(FX_INT32 i) | |
{ | |
m_bits[i >> 5] |= 1 << (i & 0x1F); | |
} | |
void CBC_CommonBitArray::Flip(FX_INT32 i) | |
{ | |
m_bits[i >> 5] ^= 1 << (i & 0x1F); | |
} | |
void CBC_CommonBitArray::SetBulk(FX_INT32 i, FX_INT32 newBits) | |
{ | |
m_bits[i >> 5] = newBits; | |
} | |
void CBC_CommonBitArray::Clear() | |
{ | |
FXSYS_memset32(&m_bits[0], 0x00, m_bits.GetSize() * sizeof(FX_INT32)); | |
} | |
FX_BOOL CBC_CommonBitArray::IsRange(FX_INT32 start, FX_INT32 end, FX_BOOL value, FX_INT32 &e) | |
{ | |
if (end < start) { | |
e = BCExceptionEndLessThanStart; | |
return FALSE; | |
} | |
if (end == start) { | |
return TRUE; | |
} | |
end--; | |
FX_INT32 firstInt = start >> 5; | |
FX_INT32 lastInt = end >> 5; | |
FX_INT32 i; | |
for (i = firstInt; i <= lastInt; i++) { | |
FX_INT32 firstBit = i > firstInt ? 0 : start & 0x1F; | |
FX_INT32 lastBit = i < lastInt ? 31 : end & 0x1F; | |
FX_INT32 mask; | |
if (firstBit == 0 && lastBit == 31) { | |
mask = -1; | |
} else { | |
mask = 0; | |
for (FX_INT32 j = firstBit; j <= lastBit; j++) { | |
mask |= 1 << j; | |
} | |
} | |
if ((m_bits[i] & mask) != (value ? mask : 0)) { | |
return FALSE; | |
} | |
} | |
return TRUE; | |
} | |
FX_INT32* CBC_CommonBitArray::GetBitArray() | |
{ | |
return &m_bits[0]; | |
} | |
void CBC_CommonBitArray::Reverse() | |
{ | |
FX_INT32* newBits = FX_Alloc(FX_INT32, m_bits.GetSize()); | |
FXSYS_memset32(newBits, 0x00, m_bits.GetSize() * sizeof(FX_INT32)); | |
FX_INT32 size = m_size; | |
FX_INT32 i; | |
for (i = 0; i < size; i++) { | |
if (Get(size - i - 1)) { | |
newBits[i >> 5] |= 1 << (i & 0x1F); | |
} | |
} | |
FXSYS_memcpy32(&m_bits[0], newBits, m_bits.GetSize() * sizeof(FX_INT32)); | |
FX_Free(newBits); | |
} |