mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-23 00:02:38 -05:00
68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
/*
|
|
===============================================================================
|
|
|
|
PROGRAMMERS:
|
|
|
|
martin.isenburg@rapidlasso.com - http://rapidlasso.com
|
|
uday.karan@gmail.com - Hobu, Inc.
|
|
andrew.bell.ia@gmail.com - Hobu Inc.
|
|
|
|
COPYRIGHT:
|
|
|
|
(c) 2007-2014, martin isenburg, rapidlasso - tools to catch reality
|
|
(c) 2014, Uday Verma, Hobu, Inc.
|
|
|
|
This is free software; you can redistribute and/or modify it under the
|
|
terms of the GNU Lesser General Licence as published by the Free Software
|
|
Foundation. See the COPYING file for more information.
|
|
|
|
This software is distributed WITHOUT ANY WARRANTY and without even the
|
|
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
#include <deque>
|
|
|
|
namespace lazperf
|
|
{
|
|
namespace detail
|
|
{
|
|
|
|
class Byte10Base
|
|
{
|
|
protected:
|
|
Byte10Base(size_t count);
|
|
|
|
size_t count_;
|
|
bool have_last_;
|
|
std::vector<uint8_t> lasts_;
|
|
std::vector<uint8_t> diffs_;
|
|
std::deque<models::arithmetic> models_;
|
|
};
|
|
|
|
class Byte10Compressor : public Byte10Base
|
|
{
|
|
public:
|
|
Byte10Compressor(encoders::arithmetic<OutCbStream>& encoder, size_t count);
|
|
|
|
const char *compress(const char *buf);
|
|
|
|
private:
|
|
encoders::arithmetic<OutCbStream>& enc_;
|
|
};
|
|
|
|
class Byte10Decompressor : public Byte10Base
|
|
{
|
|
public:
|
|
Byte10Decompressor(decoders::arithmetic<InCbStream>& decoder, size_t count);
|
|
|
|
char *decompress(char *buf);
|
|
|
|
private:
|
|
decoders::arithmetic<InCbStream>& dec_;
|
|
};
|
|
|
|
} // namespace detail
|
|
} // namespace lazperf
|