/usr/include/qpdf/Pl_RunLength.hh is in libqpdf-dev 8.0.2-3~16.04.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | // Copyright (c) 2005-2018 Jay Berkenbilt
//
// This file is part of qpdf.
//
// 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.
//
// Versions of qpdf prior to version 7 were released under the terms
// of version 2.0 of the Artistic License. At your option, you may
// continue to consider qpdf to be licensed under those terms. Please
// see the manual for additional information.
#ifndef __PL_RUNLENGTH_HH__
#define __PL_RUNLENGTH_HH__
#include <qpdf/Pipeline.hh>
class Pl_RunLength: public Pipeline
{
public:
enum action_e { a_encode, a_decode };
QPDF_DLL
Pl_RunLength(char const* identifier, Pipeline* next,
action_e action);
QPDF_DLL
virtual ~Pl_RunLength();
QPDF_DLL
virtual void write(unsigned char* data, size_t len);
QPDF_DLL
virtual void finish();
private:
void encode(unsigned char* data, size_t len);
void decode(unsigned char* data, size_t len);
void flush_encode();
enum state_e { st_top, st_copying, st_run };
action_e action;
state_e state;
unsigned char buf[128];
unsigned int length;
};
#endif // __PL_RUNLENGTH_HH__
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