/usr/include/synfig-1.0/synfig/zstreambuf.h is in libsynfig-dev 1.2.1-0ubuntu4.
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 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | /* === S Y N F I G ========================================================= */
/*! \file zstreambuf.h
** \brief zstreambuf
**
** $Id$
**
** \legal
** ......... ... 2013 Ivan Mahonin
**
** This package is free software; you can redistribute it and/or
** modify it under the terms of the GNU General Public License as
** published by the Free Software Foundation; either version 2 of
** the License, or (at your option) any later version.
**
** This package is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** General Public License for more details.
** \endlegal
*/
/* ========================================================================= */
/* === S T A R T =========================================================== */
#ifndef __SYNFIG_ZSTREAMBUF_H
#define __SYNFIG_ZSTREAMBUF_H
/* === H E A D E R S ======================================================= */
#include <streambuf>
#include <istream>
#include <ostream>
#include <vector>
#include <zlib.h>
#include "filesystem.h"
/* === M A C R O S ========================================================= */
/* === T Y P E D E F S ===================================================== */
/* === C L A S S E S & S T R U C T S ======================================= */
namespace synfig {
class zstreambuf : public std::streambuf
{
public:
enum {
option_bufsize = 4096,
option_method = Z_DEFLATED,
option_compression_level = Z_BEST_COMPRESSION,
option_window_bits = 16+MAX_WBITS,
option_mem_level = 9,
option_strategy = Z_DEFAULT_STRATEGY,
fast_option_compression_level = Z_BEST_SPEED,
fast_option_mem_level = 9,
fast_option_strategy = Z_FIXED
};
private:
std::streambuf *buf_;
bool inflate_initialized;
z_stream inflate_stream_;
std::vector<char> read_buffer_;
bool deflate_initialized;
z_stream deflate_stream_;
std::vector<char> write_buffer_;
bool inflate_buf();
bool deflate_buf(bool flush);
public:
explicit zstreambuf(std::streambuf *buf);
virtual ~zstreambuf();
protected:
virtual int sync();
virtual int underflow();
virtual int overflow(int c = EOF);
public:
static bool pack(std::vector<char> &dest, const void *src, size_t size, bool fast = false);
static size_t pack(void *dest, size_t dest_size, const void *src, size_t size, bool fast = false);
static bool unpack(std::vector<char> &dest, const void *src, size_t size);
static size_t unpack(void *dest, size_t dest_size, const void *src, size_t src_size);
};
class ZReadStream : public FileSystem::ReadStream
{
public:
typedef etl::handle<ZReadStream> Handle;
private:
FileSystem::ReadStream::Handle stream_;
zstreambuf buf_;
std::istream istream_;
protected:
virtual size_t internal_read(void *buffer, size_t size)
{ return (size_t)istream_.read((char*)buffer, size).gcount(); }
public:
ZReadStream(FileSystem::ReadStream::Handle stream):
FileSystem::ReadStream(stream->file_system()),
stream_(stream),
buf_(stream_->rdbuf()),
istream_(&buf_)
{ }
};
class ZWriteStream : public FileSystem::WriteStream
{
public:
typedef etl::handle<ZWriteStream> Handle;
private:
FileSystem::WriteStream::Handle stream_;
zstreambuf buf_;
std::ostream ostream_;
protected:
virtual size_t internal_write(const void *buffer, size_t size)
{
for(size_t i = 0; i < size; i++)
if (!ostream_.put(((const char*)buffer)[i]).good())
return i;
return size;
}
public:
ZWriteStream(FileSystem::WriteStream::Handle stream):
FileSystem::WriteStream(stream->file_system()),
stream_(stream),
buf_(stream_->rdbuf()),
ostream_(&buf_)
{ }
};
}
/* === E N D =============================================================== */
#endif
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