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embedded lzo source in repo

This commit is contained in:
Jack Andersen 2015-04-11 23:22:03 -07:00
parent 71bd0b9d76
commit 0e2825efce
132 changed files with 24471 additions and 3 deletions
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AthenaCore.pri
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!contains(ATHENA_PRO, true): { !contains(ATHENA_PRO, true): {
INCLUDEPATH += $$PWD/include INCLUDEPATH += $$PWD/include
mac:INCLUDEPATH += /usr/local/include mac:INCLUDEPATH += /usr/local/include
unix:LIBS += -lz -llzo2 unix:LIBS += -lz
win32:LIBS += -lz -llzo2 mac:LIBS += -L/usr/local/lib -lz
mac:LIBS += -L/usr/local/lib -lz -llzo2
QMAKE_CXXFLAGS += -std=c++11 QMAKE_CXXFLAGS += -std=c++11
mac:QMAKE_CXXFLAGS += -stdlib=libc++ mac:QMAKE_CXXFLAGS += -stdlib=libc++
} }
include(extern/lzo/lzo.pri)
ATHENA_CORE=true ATHENA_CORE=true
SOURCES += \ SOURCES += \

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Authors of the LZO data compression library:
Markus F.X.J. Oberhumer. Invented, designed and implemented LZO.

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============================================================================
LZO -- a real-time data compression library
============================================================================
LZO is free of any known bugs.
Nevertheless LZO has been reported to break the optimizer of some
compilers including gcc 2.7.2 (AIX, IRIX) and Watcom C 9.5.
So if 'lzotest' reports data decompression errors you should recompile
everything without optimizations and see if that fixes the problem.
I'd like to hear about optimizer problems and possible workarounds.
Known compiler problems:
------------------------
some versions of gcc use '-O2 -fno-strength-reduce'
some versions of gcc use '-O2 -fno-schedule-insns -fno-schedule-insns2'
Watcom C 9.5 compile with '-oneax' instead of '-oneatx'

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Sorry, no detailed ChangeLog available yet.
Please see the file NEWS for a list of user visible changes.

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Introduction
============
This installation guide is for POSIX (Autoconf) systems.
For Win32, Win64, DOS and OS/2 please read the file B/00README.TXT.
Quick start
-----------
./configure
make
make check
make test (run a full test)
make install (when logged in as root)
Exotic machines
---------------
Instead of using Autoconf you may want to adapt the simple build
script in B/generic/build.sh.
Shared libraries
----------------
LZO uses Libtool so that shared libraries are supported on many
systems. If want to build shared libraries type you have to type
`./configure --enable-shared' - building shared libraries is not
enabled by default.
Assembler versions
------------------
On Intel i386 systems, the assembler versions of the decompressors are
built and used by default. You can use `./configure --disable-asm' if
for some reason they cause compilation problems on your system.
[ The standard Autoconf installation instructions follow below. ]
Copyright (C) 1994, 1995, 1996, 1999, 2000, 2001, 2002 Free Software
Foundation, Inc.
This file is free documentation; the Free Software Foundation gives
unlimited permission to copy, distribute and modify it.
Basic Installation
==================
These are generic installation instructions.
The `configure' shell script attempts to guess correct values for
various system-dependent variables used during compilation. It uses
those values to create a `Makefile' in each directory of the package.
It may also create one or more `.h' files containing system-dependent
definitions. Finally, it creates a shell script `config.status' that
you can run in the future to recreate the current configuration, and a
file `config.log' containing compiler output (useful mainly for
debugging `configure').
It can also use an optional file (typically called `config.cache'
and enabled with `--cache-file=config.cache' or simply `-C') that saves
the results of its tests to speed up reconfiguring. (Caching is
disabled by default to prevent problems with accidental use of stale
cache files.)
If you need to do unusual things to compile the package, please try
to figure out how `configure' could check whether to do them, and mail
diffs or instructions to the address given in the `README' so they can
be considered for the next release. If you are using the cache, and at
some point `config.cache' contains results you don't want to keep, you
may remove or edit it.
The file `configure.ac' (or `configure.in') is used to create
`configure' by a program called `autoconf'. You only need
`configure.ac' if you want to change it or regenerate `configure' using
a newer version of `autoconf'.
The simplest way to compile this package is:
1. `cd' to the directory containing the package's source code and type
`./configure' to configure the package for your system. If you're
using `csh' on an old version of System V, you might need to type
`sh ./configure' instead to prevent `csh' from trying to execute
`configure' itself.
Running `configure' takes awhile. While running, it prints some
messages telling which features it is checking for.
2. Type `make' to compile the package.
3. Optionally, type `make check' to run any self-tests that come with
the package.
4. Type `make install' to install the programs and any data files and
documentation.
5. You can remove the program binaries and object files from the
source code directory by typing `make clean'. To also remove the
files that `configure' created (so you can compile the package for
a different kind of computer), type `make distclean'. There is
also a `make maintainer-clean' target, but that is intended mainly
for the package's developers. If you use it, you may have to get
all sorts of other programs in order to regenerate files that came
with the distribution.
Compilers and Options
=====================
Some systems require unusual options for compilation or linking that
the `configure' script does not know about. Run `./configure --help'
for details on some of the pertinent environment variables.
You can give `configure' initial values for configuration parameters
by setting variables in the command line or in the environment. Here
is an example:
./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
Compiling For Multiple Architectures
====================================
You can compile the package for more than one kind of computer at the
same time, by placing the object files for each architecture in their
own directory. To do this, you must use a version of `make' that
supports the `VPATH' variable, such as GNU `make'. `cd' to the
directory where you want the object files and executables to go and run
the `configure' script. `configure' automatically checks for the
source code in the directory that `configure' is in and in `..'.
If you have to use a `make' that does not support the `VPATH'
variable, you have to compile the package for one architecture at a
time in the source code directory. After you have installed the
package for one architecture, use `make distclean' before reconfiguring
for another architecture.
Installation Names
==================
By default, `make install' will install the package's files in
`/usr/local/bin', `/usr/local/man', etc. You can specify an
installation prefix other than `/usr/local' by giving `configure' the
option `--prefix=PATH'.
You can specify separate installation prefixes for
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PATH as the prefix for installing programs and libraries.
Documentation and other data files will still use the regular prefix.
In addition, if you use an unusual directory layout you can give
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kinds of files. Run `configure --help' for a list of the directories
you can set and what kinds of files go in them.
If the package supports it, you can cause programs to be installed
with an extra prefix or suffix on their names by giving `configure' the
option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
Optional Features
=================
Some packages pay attention to `--enable-FEATURE' options to
`configure', where FEATURE indicates an optional part of the package.
They may also pay attention to `--with-PACKAGE' options, where PACKAGE
is something like `gnu-as' or `x' (for the X Window System). The
`README' should mention any `--enable-' and `--with-' options that the
package recognizes.
For packages that use the X Window System, `configure' can usually
find the X include and library files automatically, but if it doesn't,
you can use the `configure' options `--x-includes=DIR' and
`--x-libraries=DIR' to specify their locations.
Specifying the System Type
==========================
There may be some features `configure' cannot figure out
automatically, but needs to determine by the type of machine the package
will run on. Usually, assuming the package is built to be run on the
_same_ architectures, `configure' can figure that out, but if it prints
a message saying it cannot guess the machine type, give it the
`--build=TYPE' option. TYPE can either be a short name for the system
type, such as `sun4', or a canonical name which has the form:
CPU-COMPANY-SYSTEM
where SYSTEM can have one of these forms:
OS KERNEL-OS
See the file `config.sub' for the possible values of each field. If
`config.sub' isn't included in this package, then this package doesn't
need to know the machine type.
If you are _building_ compiler tools for cross-compiling, you should
use the `--target=TYPE' option to select the type of system they will
produce code for.
If you want to _use_ a cross compiler, that generates code for a
platform different from the build platform, you should specify the
"host" platform (i.e., that on which the generated programs will
eventually be run) with `--host=TYPE'.
Sharing Defaults
================
If you want to set default values for `configure' scripts to share,
you can create a site shell script called `config.site' that gives
default values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists. Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.
Defining Variables
==================
Variables not defined in a site shell script can be set in the
environment passed to `configure'. However, some packages may run
configure again during the build, and the customized values of these
variables may be lost. In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'. For example:
./configure CC=/usr/local2/bin/gcc
will cause the specified gcc to be used as the C compiler (unless it is
overridden in the site shell script).
`configure' Invocation
======================
`configure' recognizes the following options to control how it
operates.
`--help'
`-h'
Print a summary of the options to `configure', and exit.
`--version'
`-V'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`--cache-file=FILE'
Enable the cache: use and save the results of the tests in FILE,
traditionally `config.cache'. FILE defaults to `/dev/null' to
disable caching.
`--config-cache'
`-C'
Alias for `--cache-file=config.cache'.
`--quiet'
`--silent'
`-q'
Do not print messages saying which checks are being made. To
suppress all normal output, redirect it to `/dev/null' (any error
messages will still be shown).
`--srcdir=DIR'
Look for the package's source code in directory DIR. Usually
`configure' can determine that directory automatically.
`configure' also accepts some other, not widely useful, options. Run
`configure --help' for more details.

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============================================================================
User visible changes for LZO -- a real-time data compression library
============================================================================
Changes in 2.09 (04 Feb 2015)
* Work around gcc bug #64516 that could affect architectures like
armv4, armv5 and sparc.
Changes in 2.08 (29 Jun 2014)
* Updated the Autoconf scripts to fix some reported build problems.
* Added CMake build support.
* Fixed lzo_init() on big-endian architectures like Sparc.
Changes in 2.07 (25 Jun 2014)
* Fixed a potential integer overflow condition in the "safe" decompressor
variants which could result in a possible buffer overrun when
processing maliciously crafted compressed input data.
Fortunately this issue only affects 32-bit systems and also can only happen
if you use uncommonly huge buffer sizes where you have to decompress more
than 16 MiB (> 2^24 bytes) untrusted compressed bytes within a single
function call, so the practical implications are limited.
POTENTIAL SECURITY ISSUE. CVE-2014-4607.
* Removed support for ancient configurations like 16-bit "huge" pointers -
LZO now requires a flat 32-bit or 64-bit memory model.
* Assorted cleanups.
Changes in 2.06 (12 Aug 2011)
* Some minor optimizations for big-endian architectures.
* Fixed overly strict malloc() misalignment check in examples.
Changes in 2.05 (23 Apr 2011)
* Converted the configure system to non-recursive Automake.
* Applied some overdue speed optimizations for modern x86/x64 architectures
and current compilers like gcc 4.6 and MSVC 2010.
Changes in 2.04 (31 Oct 2010)
* Fixed a gcc-4.5 aliasing issue in lzo_init().
* Updated the configure system.
* Assorted cleanups.
Changes in 2.03 (30 Apr 2008)
* Updated the ELF assembler sources to mark the stack as non-executable.
* Fixed a HP-UX 11 build issue with Itanium in ILP32 mode.
* Updated the configure system.
Changes in 2.02 (17 Oct 2005)
* Updated the build and Autoconf scripts to fix some reported
compilation problems.
Changes in 2.01 (27 Jun 2005)
* Changed the configure system to install the LZO library under the
name "liblzo2" so that parallel installation with LZO v1 is possible.
* Improved auto-configuration in miniLZO for some embedded targets like
Blackfin and H8/300 processors.
Changes in 2.00 (30 May 2005)
[Library interface changes]
* The 'lzo_uint' typedef has been changed to match 'size_t', which means
it now is 64 bits on most 64-bit architectures. 32-bit machines
are not affected by this change.
* The formula for maximum expansion of incompressible data has changed.
See doc/LZO.FAQ. This is needed for some upcoming speed improvements,
and also for compatibility with our commercial LZO Professional product.
* The progress indicator callback interface has been revamped.
* All public header files now get installed into a "lzo" subdirectory, so
your applications should use #include <lzo/lzoXXX.h>.
* A number of (internal) macros have been renamed. See LZO_CFG_COMPAT
in <lzo/lzoconf.h> if your code depends on these.
[Speed]
* Small overall speedup by exploiting features like branch prediction
hints and explicit inline control present in modern C/C++ compilers.
* Significant speedup for 64-bit architectures like AMD64.
[Portability]
* LZO now fully supports the LLP64 programming model.
* LZO now fully supports the ILP64 and SILP64 programming models which
are used on some supercomputing architectures.
* Full Win64 support for AMD64 (aka x64) and IA64 (Itanium).
* Full 16-bit support for ancient DOS 286 protected mode, OS/2 1.x
and Windows 3.x.
* The LZO library now compiles and works on completely freestanding or
embedded systems as long as you have <limits.h> and <stddef.h> header
files. See the B/generic/build_freestanding.sh build script.
[Misc]
* The i386 assembler versions of the decompressors are now automatically
built and installed. See also asm/i386/00README.TXT.
* Added include file <lzo/lzo_asm.h> that provides prototypes for all
assembler functions.
* Under MacOS X, the configure script now will use the '-no-cpp-precomp'
compiler option in order to work around bugs in some versions of
Apple's native "smart" preprocessor.
* Worked around a preprocessor bug that is present in all compilers which
are based on the lcc compiler kit.
* Added simple B/generic/build.sh build script family.
* Added lots of new build scripts for various DOS/Windows compilers.
[Upgrade instructions from LZO v1 to LZO v2]
* On 64-bit architectures, revisit all uses of lzo_uint.
* Adapt for the maximum expansion change of incompressible data.
* If you use the progress callback then adapt for the new interface.
* Use #include <lzo/lzoXXX.h> or adjust your include path.
* Check your code for use of deprecated macros. Add a
#define LZO_CFG_COMPAT if necessary.
* Other than that LZO v2 should be fully source-compatible with LZO v1.
Of course, the compressed data is fully compatible as well.
* Re-compile and re-link your application.
* Enjoy the improvements!
----------------------------------------------------------------------------
Changes in 1.08 (12 Jul 2002)
* Much better support for cross compiling.
* Straighten out ANSI-conforming compiler checks.
* Avoid harmless compiler warnings reported by -Wcast-align.
* Fixed some sign extension problems on rather exotic machines where
sizeof(size_t) < sizeof(ptrdiff_t) and sizeof(lzo_uint) == sizeof(size_t)
* Updated the configure system to use the latest Autoconf, Automake
and Libtool versions.
Changes in 1.07 (18 Oct 2000)
* Default to '--disable-shared' (I'm getting tired of Libtool's
shared library build problems, this time AIX was the culprit).
* Avoid some harmless compiler warnings.
Changes in 1.06 (29 Nov 1999)
* Updated the configure system to use Autoconf 2.13, Automake 1.4 and
Libtool 1.3.3. This should hopefully fix the shared-library build
problems that were reported on some machines.
* Enhanced example programs a little bit.
Changes in 1.05 (14 Apr 1998)
* Just a one-line change in the configure script to workaround
a HPUX and IRIX build problem.
Changes in 1.04 (15 Mar 1998)
* Worked around a bug in the cpp preprocessor under HPUX 10.20.
* Adapted for Automake 1.2f and Libtool 1.1.
Changes in 1.03 (18 Jan 1998)
* minor compression ratio improvement
* extended example program to show how to do overlapping compression
* assembler changes, added support for the nasm assembler
* better support for cross compiling
* some cleanups
Changes in 1.02 (07 Dec 1997)
* improved LZO1X-999 and LZO1Y-999 compression ratio a little bit again
* introduced compression levels for LZO1X-999 and LZO1Y-999
* added support for preset dictionaries
* implemented LZO1X-1(12): needs 16 KiB for compression
* new algorithm LZO1Z: this is another variant of LZO1X
* added example program: how to use preset dictionaries
* added example program: how to do in-place decompression
* added a little file-packer example program
* LZO now works cleanly under checkergcc
* strict 16-bit memory model is working (but not officially supported)
* shared libraries are supported on many platforms
* adapted for Automake 1.2d and Libtool 1.0h
Changes in 1.01 (10 Aug 1997)
* improved LZO1X-999 and LZO1Y-999 compression ratio a little bit
* i386+gcc: significant speedup of the C version of the LZO1, LZO1A,
LZO1B and LZO1C decompressors
* added example programs that show how to generate pre-compressed data
* added Makefiles for DOS, Windows and OS/2 targets
Changes in 1.00 (13 Jul 1997)
* added miniLZO - can be easily included in your project
* improved documentation, added LZO.FAQ
* added build scripts for many systems where Autoconf is not available:
Windows 3.1 (LIB+DLL), Windows 95/NT (LIB+DLL), DOS (16+32 bit), OS/2
* adapted for Automake 1.2 and Libtool 1.0
Changes in 0.90 (27 Jun 1997): never released
* LZO now uses GNU Automake 1.0 - lots of configuration changes
* added LZO1X-1(11): this version needs only 8 KiB for compression
* implemented LZO1Y-1
* added i386 assembler decompressors for MASM/TASM/WASM
* the name of some assembler functions changed
* the numeric value of some error codes changed
* portability fixes
Changes in 0.29 (04 May 1997)
* Linux ELF shared library support
* workaround for gcc 2.7.2 optimizer bug under AIX
* added lzo_crc32() checksum
Changes in 0.28 (22 Feb 1997)
* new algorithm LZO1Y: LZO1Y-999 and LZO1Y decompressor
* added lzo1x_optimize() and lzo1y_optimize()
* minor speedup in assembler decompressors (i386+gcc)
* ltest.c rewritten
Changes in 0.27 (19 Jan 1997)
* fixed a bug in LZO1B-999 and LZO1C-999 that could produce
invalid compressed data in very rare cases
Changes in 0.26 (18 Jan 1997): never released
* implemented LZO1B-999
* renamed LZO1D to LZO2A (also updated all docs)
* some cleanups
Changes in 0.25 (28 Dec 1996): never released
* some portability fixes (LZO now works on my old Atari ST :-)
* adapted for Autoconf 2.12
Changes in 0.24 (30 Nov 1996): never released
* improved performance of LZO1X assembler decompressor on a Pentium (i386+gcc)
Changes in 0.23 (23 Nov 1996)
* added LZO1C, LZO1F and LZO1X decompressors in assembler (i386+gcc)
* added corresponding LZO_PUBLIC to all LZO_EXTERN functions
* added support for Microsoft C 7.0 (16-bit DOS)
* introduced lzo_uint32. This could prove useful for a strict 16-bit
version that doesn't use 'huge' pointers.
* all algorithms use incremental hashing now
* some cleanups and portability fixes
Changes in 0.22 (19 Sep 1996)
* LZO1X: minor decompressor speedup, added some checks in safe decompressor
* Autoconf: added detection of gcc strength-reduction bug
* Makefile changes
Changes in 0.21 (08 Sep 1996)
* LZO now uses GNU Autoconf 2.10 - lots of configuration changes
* a few cosmetical changes
Changes in 0.20 (11 Aug 1996)
* new algorithm LZO1X: LZO1X-1, LZO1X-999 and LZO1X decompressor
* significantly speeded up LZO1B, LZO1C and LZO1F decompressors
on CPUs which allow unaligned memory access (e.g. Intel i386)
* greatly speeded up LZO2A-999 compressor at the cost of some memory
* some cleanups, portability fixes and minor speedups
Changes in 0.16 (22 Jul 1996)
* speeded up LZO1F decompressor a little bit
* improved LZO1F-999 compression ratio
Changes in 0.15 (10 Jul 1996)
* new algorithm LZO1F: LZO1F-1, LZO1F-999 and LZO1F decompressor
* improved LZO2A-999 compression ratio
* removed LZO1E as it is dominated by LZO1F
Changes in 0.14 (06 Jul 1996): never released
* experimental algorithms: LZO1E and LZO1F
* added LZO_EXTERN to all prototypes. Useful when building a DLL.
* improved LZO1C-999 and LZO2A-999 compression ratio a little bit
* fixed progress indicator callback (it was called only once)
Changes in 0.13 (20 Jun 1996)
* some speed improvements in LZO1C-999 and LZO2A-999
Changes in 0.12 (18 Jun 1996): never released
* added LZO1C-999, a slow but nearly optimal compressor
intended for generating pre-compressed data
* added tests for lookbehind-overrun in all safe decompressors
* source tree completely rearranged, some filenames changed
* extensions changed: a .ch file is a C source code that is included
for reasons of code sharing
* new algorithm LZO2A: LZO2A-999 and LZO2A decompressor. There is
no fast compressor yet.
* some cleanups
Changes in 0.11 (29 May 1996)
* source tree rearranged
* LZO now compiles fine as a C++ library (interface still has C linkage)
* improved overall compression ratio a little bit
* LZO1B-99/LZO1C-99 now search for longer matches
* incremental hash is working, it's a little bit faster
* Makefile changed
* added lzo_uint and lzo_sizeof in some places
* split LZO1B compressor into even more include-files
Changes in 0.10 (20 May 1996): first public release of the LZO library
* includes LZO1, LZO1A, LZO1B and LZO1C algorithms
(compression levels 1-9 and 99)
14 Mar 1996:
* public release of the LZO1A algorithm
04 Mar 1996:
* public release of the LZO1 algorithm

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============================================================================
LZO -- a real-time data compression library
============================================================================
Please read the file doc/LZO.TXT for an introduction to LZO.
See the file doc/LZO.FAQ for various tidbits of information.
See the file NEWS for a list of major changes in the current release.
See the file INSTALL for compilation and installation instructions.
For a quick start how to use LZO look at examples/lzopack.c.
Directory overview:
-------------------
autoconf Autoconf configuration files (UNIX specific)
B various support files for DOS, Windows, OS/2, ...
doc documentation
examples example programs
include public header files
minilzo a lightweight subset for easy inclusion in your project
src library source
tests more or less exotic test programs
util some utility scripts
Have fun,
Markus
http://www.oberhumer.com/opensource/lzo/

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I want to thank the following people for giving feedback, doing
beta-testing or helping me some other way:
Charles W. Sandmann <sandmann@clio.rice.edu>
Frank Donahoe <fdonahoe@wilkes1.wilkes.edu>
Holger Berger <Holger.Berger@rus.uni-stuttgart.de>
Jean-loup Gailly <jloup@gzip.org>
Laszlo Molnar <ml1050@freemail.c3.hu>
Mark Adler <madler@alumni.caltech.edu>
Paul D. Eccles <pde@sd.inri.com>
Rodolphe Ortalo <ortalo@laas.fr>
William Magro <wmagro@TC.Cornell.EDU>
Wolfgang Lugmayr <W.Lugmayr@infosys.tuwien.ac.at>
Natascha

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/* lzo1.h -- public interface of the LZO1 compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1_H_INCLUDED
#define __LZO1_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1_MEM_COMPRESS ((lzo_uint32_t) (8192L * lzo_sizeof_dict_t))
#define LZO1_MEM_DECOMPRESS (0)
LZO_EXTERN(int)
lzo1_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1_99_MEM_COMPRESS ((lzo_uint32_t) (65536L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1_99_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1a.h -- public interface of the LZO1A compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1A_H_INCLUDED
#define __LZO1A_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1A_MEM_COMPRESS ((lzo_uint32_t) (8192L * lzo_sizeof_dict_t))
#define LZO1A_MEM_DECOMPRESS (0)
LZO_EXTERN(int)
lzo1a_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1a_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1A_99_MEM_COMPRESS ((lzo_uint32_t) (65536L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1a_99_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1b.h -- public interface of the LZO1B compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1B_H_INCLUDED
#define __LZO1B_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1B_MEM_COMPRESS ((lzo_uint32_t) (16384L * lzo_sizeof_dict_t))
#define LZO1B_MEM_DECOMPRESS (0)
/* compression levels */
#define LZO1B_BEST_SPEED 1
#define LZO1B_BEST_COMPRESSION 9
#define LZO1B_DEFAULT_COMPRESSION (-1) /* fastest by default */
LZO_EXTERN(int)
lzo1b_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
int compression_level );
/* decompression */
LZO_EXTERN(int)
lzo1b_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/* safe decompression with overrun testing */
LZO_EXTERN(int)
lzo1b_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
//
************************************************************************/
LZO_EXTERN(int)
lzo1b_1_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_2_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_3_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_4_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_5_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_6_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_7_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_8_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1b_9_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1B_99_MEM_COMPRESS ((lzo_uint32_t) (65536L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1b_99_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#define LZO1B_999_MEM_COMPRESS ((lzo_uint32_t) (3 * 65536L * sizeof(lzo_xint)))
LZO_EXTERN(int)
lzo1b_999_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1c.h -- public interface of the LZO1C compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1C_H_INCLUDED
#define __LZO1C_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1C_MEM_COMPRESS ((lzo_uint32_t) (16384L * lzo_sizeof_dict_t))
#define LZO1C_MEM_DECOMPRESS (0)
/* compression levels */
#define LZO1C_BEST_SPEED 1
#define LZO1C_BEST_COMPRESSION 9
#define LZO1C_DEFAULT_COMPRESSION (-1) /* fastest by default */
LZO_EXTERN(int)
lzo1c_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
int compression_level );
/* decompression */
LZO_EXTERN(int)
lzo1c_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/* safe decompression with overrun testing */
LZO_EXTERN(int)
lzo1c_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
//
************************************************************************/
LZO_EXTERN(int)
lzo1c_1_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1c_2_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1c_3_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1c_4_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1c_5_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1c_6_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1c_7_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1c_8_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
LZO_EXTERN(int)
lzo1c_9_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1C_99_MEM_COMPRESS ((lzo_uint32_t) (65536L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1c_99_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#define LZO1C_999_MEM_COMPRESS ((lzo_uint32_t) (5 * 16384L * sizeof(short)))
LZO_EXTERN(int)
lzo1c_999_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1f.h -- public interface of the LZO1F compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1F_H_INCLUDED
#define __LZO1F_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1F_MEM_COMPRESS ((lzo_uint32_t) (16384L * lzo_sizeof_dict_t))
#define LZO1F_MEM_DECOMPRESS (0)
/* decompression */
LZO_EXTERN(int)
lzo1f_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/* safe decompression with overrun testing */
LZO_EXTERN(int)
lzo1f_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
//
************************************************************************/
LZO_EXTERN(int)
lzo1f_1_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1F_999_MEM_COMPRESS ((lzo_uint32_t) (5 * 16384L * sizeof(short)))
LZO_EXTERN(int)
lzo1f_999_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1x.h -- public interface of the LZO1X compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1X_H_INCLUDED
#define __LZO1X_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1X_MEM_COMPRESS LZO1X_1_MEM_COMPRESS
#define LZO1X_MEM_DECOMPRESS (0)
#define LZO1X_MEM_OPTIMIZE (0)
/* decompression */
LZO_EXTERN(int)
lzo1x_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/* safe decompression with overrun testing */
LZO_EXTERN(int)
lzo1x_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
//
************************************************************************/
#define LZO1X_1_MEM_COMPRESS ((lzo_uint32_t) (16384L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1x_1_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
// special compressor versions
************************************************************************/
/* this version needs only 8 KiB work memory */
#define LZO1X_1_11_MEM_COMPRESS ((lzo_uint32_t) (2048L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1x_1_11_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/* this version needs 16 KiB work memory */
#define LZO1X_1_12_MEM_COMPRESS ((lzo_uint32_t) (4096L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1x_1_12_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/* use this version if you need a little more compression speed */
#define LZO1X_1_15_MEM_COMPRESS ((lzo_uint32_t) (32768L * lzo_sizeof_dict_t))
LZO_EXTERN(int)
lzo1x_1_15_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1X_999_MEM_COMPRESS ((lzo_uint32_t) (14 * 16384L * sizeof(short)))
LZO_EXTERN(int)
lzo1x_999_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
//
************************************************************************/
LZO_EXTERN(int)
lzo1x_999_compress_dict ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len );
LZO_EXTERN(int)
lzo1x_999_compress_level ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len,
lzo_callback_p cb,
int compression_level );
LZO_EXTERN(int)
lzo1x_decompress_dict_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */,
const lzo_bytep dict, lzo_uint dict_len );
/***********************************************************************
// optimize a compressed data block
************************************************************************/
LZO_EXTERN(int)
lzo1x_optimize ( lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1y.h -- public interface of the LZO1Y compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1Y_H_INCLUDED
#define __LZO1Y_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1Y_MEM_COMPRESS ((lzo_uint32_t) (16384L * lzo_sizeof_dict_t))
#define LZO1Y_MEM_DECOMPRESS (0)
#define LZO1Y_MEM_OPTIMIZE (0)
/* decompression */
LZO_EXTERN(int)
lzo1y_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/* safe decompression with overrun testing */
LZO_EXTERN(int)
lzo1y_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
//
************************************************************************/
LZO_EXTERN(int)
lzo1y_1_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1Y_999_MEM_COMPRESS ((lzo_uint32_t) (14 * 16384L * sizeof(short)))
LZO_EXTERN(int)
lzo1y_999_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
//
************************************************************************/
LZO_EXTERN(int)
lzo1y_999_compress_dict ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len );
LZO_EXTERN(int)
lzo1y_999_compress_level ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len,
lzo_callback_p cb,
int compression_level );
LZO_EXTERN(int)
lzo1y_decompress_dict_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */,
const lzo_bytep dict, lzo_uint dict_len );
/***********************************************************************
// optimize a compressed data block
************************************************************************/
LZO_EXTERN(int)
lzo1y_optimize ( lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1z.h -- public interface of the LZO1Z compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO1Z_H_INCLUDED
#define __LZO1Z_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/* Memory required for the wrkmem parameter.
* When the required size is 0, you can also pass a NULL pointer.
*/
#define LZO1Z_MEM_DECOMPRESS (0)
/* decompression */
LZO_EXTERN(int)
lzo1z_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/* safe decompression with overrun testing */
LZO_EXTERN(int)
lzo1z_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO1Z_999_MEM_COMPRESS ((lzo_uint32_t) (14 * 16384L * sizeof(short)))
LZO_EXTERN(int)
lzo1z_999_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
/***********************************************************************
//
************************************************************************/
LZO_EXTERN(int)
lzo1z_999_compress_dict ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len );
LZO_EXTERN(int)
lzo1z_999_compress_level ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len,
lzo_callback_p cb,
int compression_level );
LZO_EXTERN(int)
lzo1z_decompress_dict_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */,
const lzo_bytep dict, lzo_uint dict_len );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo2a.h -- public interface of the LZO2A compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO2A_H_INCLUDED
#define __LZO2A_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
#define LZO2A_MEM_DECOMPRESS (0)
/* decompression */
LZO_EXTERN(int)
lzo2a_decompress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/* safe decompression with overrun testing */
LZO_EXTERN(int)
lzo2a_decompress_safe ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem /* NOT USED */ );
/***********************************************************************
// better compression ratio at the cost of more memory and time
************************************************************************/
#define LZO2A_999_MEM_COMPRESS ((lzo_uint32_t) (8 * 16384L * sizeof(short)))
LZO_EXTERN(int)
lzo2a_999_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo_asm.h -- assembler prototypes for the LZO data compression library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZO_ASM_H_INCLUDED
#define __LZO_ASM_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
// i386 assembly decompressors
//
// NOTE:
// ====
//
// - For reasons of speed all fast assembler decompressors (having '_fast'
// in their name) can access (write to) up to 3 bytes past the end of
// the decompressed ("dst") block. Data past the end of the compressed
// ("src") block is never accessed (read from).
// [ technical note: because data is transferred in 32-bit units ]
//
// - Please also see asm/i386/00README.TXT and doc/LZO.FAQ for more
// important details about the assembler versions.
//
************************************************************************/
LZO_EXTERN(int) lzo1c_decompress_asm
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1c_decompress_asm_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1f_decompress_asm_fast
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1f_decompress_asm_fast_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1x_decompress_asm
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1x_decompress_asm_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1x_decompress_asm_fast
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1x_decompress_asm_fast_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1y_decompress_asm
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1y_decompress_asm_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1y_decompress_asm_fast
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_EXTERN(int) lzo1y_decompress_asm_fast_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
/***********************************************************************
// checksum and misc functions
************************************************************************/
#if 0
LZO_EXTERN(lzo_uint32_t)
lzo_crc32_asm(lzo_uint32_t c, const lzo_bytep buf, lzo_uint len,
const lzo_uint32_tp tab);
LZO_EXTERN(lzo_uint32_t)
lzo_crc32_asm_small(lzo_uint32_t c, const lzo_bytep buf, lzo_uint len);
LZO_EXTERN(int)
lzo_cpuid_asm(lzo_uint32_tp /* lzo_uint32_t info[16] */ );
LZO_EXTERN(lzo_uint32_t)
lzo_rdtsc_asm(lzo_uint32_tp /* lzo_uint32_t ticks[2] */ );
#endif
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzoconf.h -- configuration of the LZO data compression library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZOCONF_H_INCLUDED
#define __LZOCONF_H_INCLUDED 1
#define LZO_VERSION 0x2090
#define LZO_VERSION_STRING "2.09"
#define LZO_VERSION_DATE "Feb 04 2015"
/* internal Autoconf configuration file - only used when building LZO */
#if defined(LZO_HAVE_CONFIG_H)
# include <config.h>
#endif
#include <limits.h>
#include <stddef.h>
/***********************************************************************
// LZO requires a conforming <limits.h>
************************************************************************/
#if !defined(CHAR_BIT) || (CHAR_BIT != 8)
# error "invalid CHAR_BIT"
#endif
#if !defined(UCHAR_MAX) || !defined(USHRT_MAX) || !defined(UINT_MAX) || !defined(ULONG_MAX)
# error "check your compiler installation"
#endif
#if (USHRT_MAX < 1) || (UINT_MAX < 1) || (ULONG_MAX < 1)
# error "your limits.h macros are broken"
#endif
/* get OS and architecture defines */
#ifndef __LZODEFS_H_INCLUDED
#include <lzo/lzodefs.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
// some core defines
************************************************************************/
/* memory checkers */
#if !defined(__LZO_CHECKER)
# if defined(__BOUNDS_CHECKING_ON)
# define __LZO_CHECKER 1
# elif defined(__CHECKER__)
# define __LZO_CHECKER 1
# elif defined(__INSURE__)
# define __LZO_CHECKER 1
# elif defined(__PURIFY__)
# define __LZO_CHECKER 1
# endif
#endif
/***********************************************************************
// integral and pointer types
************************************************************************/
/* lzo_uint must match size_t */
#if !defined(LZO_UINT_MAX)
# if (LZO_ABI_LLP64)
# if (LZO_OS_WIN64)
typedef unsigned __int64 lzo_uint;
typedef __int64 lzo_int;
# define LZO_TYPEOF_LZO_INT LZO_TYPEOF___INT64
# else
typedef lzo_ullong_t lzo_uint;
typedef lzo_llong_t lzo_int;
# define LZO_TYPEOF_LZO_INT LZO_TYPEOF_LONG_LONG
# endif
# define LZO_SIZEOF_LZO_INT 8
# define LZO_UINT_MAX 0xffffffffffffffffull
# define LZO_INT_MAX 9223372036854775807LL
# define LZO_INT_MIN (-1LL - LZO_INT_MAX)
# elif (LZO_ABI_IP32L64) /* MIPS R5900 */
typedef unsigned int lzo_uint;
typedef int lzo_int;
# define LZO_SIZEOF_LZO_INT LZO_SIZEOF_INT
# define LZO_TYPEOF_LZO_INT LZO_TYPEOF_INT
# define LZO_UINT_MAX UINT_MAX
# define LZO_INT_MAX INT_MAX
# define LZO_INT_MIN INT_MIN
# elif (ULONG_MAX >= LZO_0xffffffffL)
typedef unsigned long lzo_uint;
typedef long lzo_int;
# define LZO_SIZEOF_LZO_INT LZO_SIZEOF_LONG
# define LZO_TYPEOF_LZO_INT LZO_TYPEOF_LONG
# define LZO_UINT_MAX ULONG_MAX
# define LZO_INT_MAX LONG_MAX
# define LZO_INT_MIN LONG_MIN
# else
# error "lzo_uint"
# endif
#endif
/* The larger type of lzo_uint and lzo_uint32_t. */
#if (LZO_SIZEOF_LZO_INT >= 4)
# define lzo_xint lzo_uint
#else
# define lzo_xint lzo_uint32_t
#endif
typedef int lzo_bool;
/* sanity checks */
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(lzo_int) == LZO_SIZEOF_LZO_INT)
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(lzo_uint) == LZO_SIZEOF_LZO_INT)
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(lzo_xint) >= sizeof(lzo_uint))
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(lzo_xint) >= sizeof(lzo_uint32_t))
#ifndef __LZO_MMODEL
#define __LZO_MMODEL /*empty*/
#endif
/* no typedef here because of const-pointer issues */
#define lzo_bytep unsigned char __LZO_MMODEL *
#define lzo_charp char __LZO_MMODEL *
#define lzo_voidp void __LZO_MMODEL *
#define lzo_shortp short __LZO_MMODEL *
#define lzo_ushortp unsigned short __LZO_MMODEL *
#define lzo_intp lzo_int __LZO_MMODEL *
#define lzo_uintp lzo_uint __LZO_MMODEL *
#define lzo_xintp lzo_xint __LZO_MMODEL *
#define lzo_voidpp lzo_voidp __LZO_MMODEL *
#define lzo_bytepp lzo_bytep __LZO_MMODEL *
#define lzo_int8_tp lzo_int8_t __LZO_MMODEL *
#define lzo_uint8_tp lzo_uint8_t __LZO_MMODEL *
#define lzo_int16_tp lzo_int16_t __LZO_MMODEL *
#define lzo_uint16_tp lzo_uint16_t __LZO_MMODEL *
#define lzo_int32_tp lzo_int32_t __LZO_MMODEL *
#define lzo_uint32_tp lzo_uint32_t __LZO_MMODEL *
#if defined(lzo_int64_t)
#define lzo_int64_tp lzo_int64_t __LZO_MMODEL *
#define lzo_uint64_tp lzo_uint64_t __LZO_MMODEL *
#endif
/* Older LZO versions used to support ancient systems and memory models
* such as 16-bit MSDOS with __huge pointers or Cray PVP, but these
* obsolete configurations are not supported any longer.
*/
#if defined(__LZO_MMODEL_HUGE)
#error "__LZO_MMODEL_HUGE memory model is unsupported"
#endif
#if (LZO_MM_PVP)
#error "LZO_MM_PVP memory model is unsupported"
#endif
#if (LZO_SIZEOF_INT < 4)
#error "LZO_SIZEOF_INT < 4 is unsupported"
#endif
#if (__LZO_UINTPTR_T_IS_POINTER)
#error "__LZO_UINTPTR_T_IS_POINTER is unsupported"
#endif
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(int) >= 4)
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(lzo_uint) >= 4)
/* Strange configurations where sizeof(lzo_uint) != sizeof(size_t) should
* work but have not received much testing lately, so be strict here.
*/
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(lzo_uint) == sizeof(size_t))
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(lzo_uint) == sizeof(ptrdiff_t))
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(lzo_uint) == sizeof(lzo_uintptr_t))
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(void *) == sizeof(lzo_uintptr_t))
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(char *) == sizeof(lzo_uintptr_t))
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(long *) == sizeof(lzo_uintptr_t))
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(void *) == sizeof(lzo_voidp))
LZO_COMPILE_TIME_ASSERT_HEADER(sizeof(char *) == sizeof(lzo_bytep))
/***********************************************************************
// function types
************************************************************************/
/* name mangling */
#if !defined(__LZO_EXTERN_C)
# ifdef __cplusplus
# define __LZO_EXTERN_C extern "C"
# else
# define __LZO_EXTERN_C extern
# endif
#endif
/* calling convention */
#if !defined(__LZO_CDECL)
# define __LZO_CDECL __lzo_cdecl
#endif
/* DLL export information */
#if !defined(__LZO_EXPORT1)
# define __LZO_EXPORT1 /*empty*/
#endif
#if !defined(__LZO_EXPORT2)
# define __LZO_EXPORT2 /*empty*/
#endif
/* __cdecl calling convention for public C and assembly functions */
#if !defined(LZO_PUBLIC)
# define LZO_PUBLIC(r) __LZO_EXPORT1 r __LZO_EXPORT2 __LZO_CDECL
#endif
#if !defined(LZO_EXTERN)
# define LZO_EXTERN(r) __LZO_EXTERN_C LZO_PUBLIC(r)
#endif
#if !defined(LZO_PRIVATE)
# define LZO_PRIVATE(r) static r __LZO_CDECL
#endif
/* function types */
typedef int
(__LZO_CDECL *lzo_compress_t) ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
typedef int
(__LZO_CDECL *lzo_decompress_t) ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
typedef int
(__LZO_CDECL *lzo_optimize_t) ( lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem );
typedef int
(__LZO_CDECL *lzo_compress_dict_t)(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len );
typedef int
(__LZO_CDECL *lzo_decompress_dict_t)(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len );
/* Callback interface. Currently only the progress indicator ("nprogress")
* is used, but this may change in a future release. */
struct lzo_callback_t;
typedef struct lzo_callback_t lzo_callback_t;
#define lzo_callback_p lzo_callback_t __LZO_MMODEL *
/* malloc & free function types */
typedef lzo_voidp (__LZO_CDECL *lzo_alloc_func_t)
(lzo_callback_p self, lzo_uint items, lzo_uint size);
typedef void (__LZO_CDECL *lzo_free_func_t)
(lzo_callback_p self, lzo_voidp ptr);
/* a progress indicator callback function */
typedef void (__LZO_CDECL *lzo_progress_func_t)
(lzo_callback_p, lzo_uint, lzo_uint, int);
struct lzo_callback_t
{
/* custom allocators (set to 0 to disable) */
lzo_alloc_func_t nalloc; /* [not used right now] */
lzo_free_func_t nfree; /* [not used right now] */
/* a progress indicator callback function (set to 0 to disable) */
lzo_progress_func_t nprogress;
/* INFO: the first parameter "self" of the nalloc/nfree/nprogress
* callbacks points back to this struct, so you are free to store
* some extra info in the following variables. */
lzo_voidp user1;
lzo_xint user2;
lzo_xint user3;
};
/***********************************************************************
// error codes and prototypes
************************************************************************/
/* Error codes for the compression/decompression functions. Negative
* values are errors, positive values will be used for special but
* normal events.
*/
#define LZO_E_OK 0
#define LZO_E_ERROR (-1)
#define LZO_E_OUT_OF_MEMORY (-2) /* [lzo_alloc_func_t failure] */
#define LZO_E_NOT_COMPRESSIBLE (-3) /* [not used right now] */
#define LZO_E_INPUT_OVERRUN (-4)
#define LZO_E_OUTPUT_OVERRUN (-5)
#define LZO_E_LOOKBEHIND_OVERRUN (-6)
#define LZO_E_EOF_NOT_FOUND (-7)
#define LZO_E_INPUT_NOT_CONSUMED (-8)
#define LZO_E_NOT_YET_IMPLEMENTED (-9) /* [not used right now] */
#define LZO_E_INVALID_ARGUMENT (-10)
#define LZO_E_INVALID_ALIGNMENT (-11) /* pointer argument is not properly aligned */
#define LZO_E_OUTPUT_NOT_CONSUMED (-12)
#define LZO_E_INTERNAL_ERROR (-99)
#ifndef lzo_sizeof_dict_t
# define lzo_sizeof_dict_t ((unsigned)sizeof(lzo_bytep))
#endif
/* lzo_init() should be the first function you call.
* Check the return code !
*
* lzo_init() is a macro to allow checking that the library and the
* compiler's view of various types are consistent.
*/
#define lzo_init() __lzo_init_v2(LZO_VERSION,(int)sizeof(short),(int)sizeof(int),\
(int)sizeof(long),(int)sizeof(lzo_uint32_t),(int)sizeof(lzo_uint),\
(int)lzo_sizeof_dict_t,(int)sizeof(char *),(int)sizeof(lzo_voidp),\
(int)sizeof(lzo_callback_t))
LZO_EXTERN(int) __lzo_init_v2(unsigned,int,int,int,int,int,int,int,int,int);
/* version functions (useful for shared libraries) */
LZO_EXTERN(unsigned) lzo_version(void);
LZO_EXTERN(const char *) lzo_version_string(void);
LZO_EXTERN(const char *) lzo_version_date(void);
LZO_EXTERN(const lzo_charp) _lzo_version_string(void);
LZO_EXTERN(const lzo_charp) _lzo_version_date(void);
/* string functions */
LZO_EXTERN(int)
lzo_memcmp(const lzo_voidp a, const lzo_voidp b, lzo_uint len);
LZO_EXTERN(lzo_voidp)
lzo_memcpy(lzo_voidp dst, const lzo_voidp src, lzo_uint len);
LZO_EXTERN(lzo_voidp)
lzo_memmove(lzo_voidp dst, const lzo_voidp src, lzo_uint len);
LZO_EXTERN(lzo_voidp)
lzo_memset(lzo_voidp buf, int c, lzo_uint len);
/* checksum functions */
LZO_EXTERN(lzo_uint32_t)
lzo_adler32(lzo_uint32_t c, const lzo_bytep buf, lzo_uint len);
LZO_EXTERN(lzo_uint32_t)
lzo_crc32(lzo_uint32_t c, const lzo_bytep buf, lzo_uint len);
LZO_EXTERN(const lzo_uint32_tp)
lzo_get_crc32_table(void);
/* misc. */
LZO_EXTERN(int) _lzo_config_check(void);
typedef union {
lzo_voidp a00; lzo_bytep a01; lzo_uint a02; lzo_xint a03; lzo_uintptr_t a04;
void *a05; unsigned char *a06; unsigned long a07; size_t a08; ptrdiff_t a09;
#if defined(lzo_int64_t)
lzo_uint64_t a10;
#endif
} lzo_align_t;
/* align a char pointer on a boundary that is a multiple of 'size' */
LZO_EXTERN(unsigned) __lzo_align_gap(const lzo_voidp p, lzo_uint size);
#define LZO_PTR_ALIGN_UP(p,size) \
((p) + (lzo_uint) __lzo_align_gap((const lzo_voidp)(p),(lzo_uint)(size)))
/***********************************************************************
// deprecated macros - only for backward compatibility
************************************************************************/
/* deprecated - use 'lzo_bytep' instead of 'lzo_byte *' */
#define lzo_byte unsigned char
/* deprecated type names */
#define lzo_int32 lzo_int32_t
#define lzo_uint32 lzo_uint32_t
#define lzo_int32p lzo_int32_t __LZO_MMODEL *
#define lzo_uint32p lzo_uint32_t __LZO_MMODEL *
#define LZO_INT32_MAX LZO_INT32_C(2147483647)
#define LZO_UINT32_MAX LZO_UINT32_C(4294967295)
#if defined(lzo_int64_t)
#define lzo_int64 lzo_int64_t
#define lzo_uint64 lzo_uint64_t
#define lzo_int64p lzo_int64_t __LZO_MMODEL *
#define lzo_uint64p lzo_uint64_t __LZO_MMODEL *
#define LZO_INT64_MAX LZO_INT64_C(9223372036854775807)
#define LZO_UINT64_MAX LZO_UINT64_C(18446744073709551615)
#endif
/* deprecated types */
typedef union { lzo_bytep a; lzo_uint b; } __lzo_pu_u;
typedef union { lzo_bytep a; lzo_uint32_t b; } __lzo_pu32_u;
/* deprecated defines */
#if !defined(LZO_SIZEOF_LZO_UINT)
# define LZO_SIZEOF_LZO_UINT LZO_SIZEOF_LZO_INT
#endif
#if defined(LZO_CFG_COMPAT)
#define __LZOCONF_H 1
#if defined(LZO_ARCH_I086)
# define __LZO_i386 1
#elif defined(LZO_ARCH_I386)
# define __LZO_i386 1
#endif
#if defined(LZO_OS_DOS16)
# define __LZO_DOS 1
# define __LZO_DOS16 1
#elif defined(LZO_OS_DOS32)
# define __LZO_DOS 1
#elif defined(LZO_OS_WIN16)
# define __LZO_WIN 1
# define __LZO_WIN16 1
#elif defined(LZO_OS_WIN32)
# define __LZO_WIN 1
#endif
#define __LZO_CMODEL /*empty*/
#define __LZO_DMODEL /*empty*/
#define __LZO_ENTRY __LZO_CDECL
#define LZO_EXTERN_CDECL LZO_EXTERN
#define LZO_ALIGN LZO_PTR_ALIGN_UP
#define lzo_compress_asm_t lzo_compress_t
#define lzo_decompress_asm_t lzo_decompress_t
#endif /* LZO_CFG_COMPAT */
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzoutil.h -- utility functions for use by applications
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#ifndef __LZOUTIL_H_INCLUDED
#define __LZOUTIL_H_INCLUDED 1
#ifndef __LZOCONF_H_INCLUDED
#include <lzo/lzoconf.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
// LZO-v1 deprecated macros (which were used in the old example programs)
//
// THIS FILE IS DEPRECATED. DO NOT USE.
************************************************************************/
#define lzo_alloc(a,b) (malloc((a)*(b)))
#define lzo_malloc(a) (malloc(a))
#define lzo_free(a) (free(a))
#define lzo_fread(f,b,s) (fread(b,1,s,f))
#define lzo_fwrite(f,b,s) (fwrite(b,1,s,f))
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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SOURCES += \
$$PWD/src/lzo1.c \
$$PWD/src/lzo1_99.c \
$$PWD/src/lzo1a.c \
$$PWD/src/lzo1a_99.c \
$$PWD/src/lzo1b_1.c \
$$PWD/src/lzo1b_2.c \
$$PWD/src/lzo1b_3.c \
$$PWD/src/lzo1b_4.c \
$$PWD/src/lzo1b_5.c \
$$PWD/src/lzo1b_6.c \
$$PWD/src/lzo1b_7.c \
$$PWD/src/lzo1b_8.c \
$$PWD/src/lzo1b_9.c \
$$PWD/src/lzo1b_99.c \
$$PWD/src/lzo1b_9x.c \
$$PWD/src/lzo1b_cc.c \
$$PWD/src/lzo1b_d1.c \
$$PWD/src/lzo1b_d2.c \
$$PWD/src/lzo1b_rr.c \
$$PWD/src/lzo1b_xx.c \
$$PWD/src/lzo1c_1.c \
$$PWD/src/lzo1c_2.c \
$$PWD/src/lzo1c_3.c \
$$PWD/src/lzo1c_4.c \
$$PWD/src/lzo1c_5.c \
$$PWD/src/lzo1c_6.c \
$$PWD/src/lzo1c_7.c \
$$PWD/src/lzo1c_8.c \
$$PWD/src/lzo1c_9.c \
$$PWD/src/lzo1c_99.c \
$$PWD/src/lzo1c_9x.c \
$$PWD/src/lzo1c_cc.c \
$$PWD/src/lzo1c_d1.c \
$$PWD/src/lzo1c_d2.c \
$$PWD/src/lzo1c_rr.c \
$$PWD/src/lzo1c_xx.c \
$$PWD/src/lzo1f_1.c \
$$PWD/src/lzo1f_9x.c \
$$PWD/src/lzo1f_d1.c \
$$PWD/src/lzo1f_d2.c \
$$PWD/src/lzo1x_1.c \
$$PWD/src/lzo1x_1k.c \
$$PWD/src/lzo1x_1l.c \
$$PWD/src/lzo1x_1o.c \
$$PWD/src/lzo1x_9x.c \
$$PWD/src/lzo1x_d1.c \
$$PWD/src/lzo1x_d2.c \
$$PWD/src/lzo1x_d3.c \
$$PWD/src/lzo1x_o.c \
$$PWD/src/lzo1y_1.c \
$$PWD/src/lzo1y_9x.c \
$$PWD/src/lzo1y_d1.c \
$$PWD/src/lzo1y_d2.c \
$$PWD/src/lzo1y_d3.c \
$$PWD/src/lzo1y_o.c \
$$PWD/src/lzo1z_9x.c \
$$PWD/src/lzo1z_d1.c \
$$PWD/src/lzo1z_d2.c \
$$PWD/src/lzo1z_d3.c \
$$PWD/src/lzo2a_9x.c \
$$PWD/src/lzo2a_d1.c \
$$PWD/src/lzo2a_d2.c \
$$PWD/src/lzo_crc.c \
$$PWD/src/lzo_init.c \
$$PWD/src/lzo_ptr.c \
$$PWD/src/lzo_str.c \
$$PWD/src/lzo_util.c
HEADERS += \
$$PWD/include/lzo/lzo1.h \
$$PWD/include/lzo/lzo1x.h \
$$PWD/include/lzo/lzoconf.h \
$$PWD/include/lzo/lzodefs.h \
$$PWD/include/lzo/lzoutil.h
INCLUDEPATH += $$PWD/include

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/* compr1b.h --
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define LZO_NEED_DICT_H 1
#include "config1b.h"
#if !defined(COMPRESS_ID)
#define COMPRESS_ID LZO_PP_ECONCAT2(DD_BITS,CLEVEL)
#endif
#include "lzo1b_c.ch"
/***********************************************************************
//
************************************************************************/
#define LZO_COMPRESS \
LZO_PP_ECONCAT3(lzo1b_,COMPRESS_ID,_compress)
#define LZO_COMPRESS_FUNC \
LZO_PP_ECONCAT3(_lzo1b_,COMPRESS_ID,_compress_func)
/***********************************************************************
//
************************************************************************/
const lzo_compress_t LZO_COMPRESS_FUNC = do_compress;
LZO_PUBLIC(int)
LZO_COMPRESS ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
return _lzo1b_do_compress(in,in_len,out,out_len,wrkmem,do_compress);
}
/* vim:set ts=4 sw=4 et: */

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/* compr1c.h --
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define LZO_NEED_DICT_H 1
#include "config1c.h"
#if !defined(COMPRESS_ID)
#define COMPRESS_ID LZO_PP_ECONCAT2(DD_BITS,CLEVEL)
#endif
#include "lzo1b_c.ch"
/***********************************************************************
//
************************************************************************/
#define LZO_COMPRESS \
LZO_PP_ECONCAT3(lzo1c_,COMPRESS_ID,_compress)
#define LZO_COMPRESS_FUNC \
LZO_PP_ECONCAT3(_lzo1c_,COMPRESS_ID,_compress_func)
/***********************************************************************
//
************************************************************************/
const lzo_compress_t LZO_COMPRESS_FUNC = do_compress;
LZO_PUBLIC(int)
LZO_COMPRESS ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
return _lzo1c_do_compress(in,in_len,out,out_len,wrkmem,do_compress);
}
/* vim:set ts=4 sw=4 et: */

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/* config1.h -- configuration for the LZO1 algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG1_H
#define __LZO_CONFIG1_H 1
#include "lzo_conf.h"
#include <lzo/lzo1.h>
#define LZO_NO_R1 1
#include "config1a.h"
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* config1a.h -- configuration for the LZO1A algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG1A_H
#define __LZO_CONFIG1A_H 1
#include "lzo_conf.h"
#include <lzo/lzo1a.h>
#undef LZO_COLLECT_STATS /* no support for stats here */
/***********************************************************************
// algorithm configuration
************************************************************************/
/* run bits (4 - 5) - the compressor and the decompressor
* must use the same value. */
#if !defined(RBITS)
# define RBITS 5
#endif
/* dictionary depth (0 - 6) - this only affects the compressor.
* 0 is fastest, 6 is best compression ratio */
#if !defined(DDBITS)
# define DDBITS 0
#endif
/* compression level (1 - 9) - this only affects the compressor.
* 1 is fastest, 9 is best compression ratio */
#if !defined(CLEVEL)
# define CLEVEL 1 /* fastest by default */
#endif
/* check configuration */
#if (RBITS < 4 || RBITS > 5)
# error "invalid RBITS"
#endif
#if (DDBITS < 0 || DDBITS > 6)
# error "invalid DDBITS"
#endif
#if (CLEVEL < 1 || CLEVEL > 9)
# error "invalid CLEVEL"
#endif
/***********************************************************************
// internal configuration
************************************************************************/
/* add a special code so that the decompressor can detect the
* end of the compressed data block (overhead is 3 bytes per block) */
#undef LZO_EOF_CODE
/***********************************************************************
// algorithm internal configuration
************************************************************************/
/* choose the hashing strategy */
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
#endif
/* config */
#define R_BITS RBITS
#define DD_BITS DDBITS
#ifndef D_BITS
#define D_BITS 16
#endif
/***********************************************************************
// optimization and debugging
************************************************************************/
/* Collect statistics */
#if 0 && !defined(LZO_COLLECT_STATS)
# define LZO_COLLECT_STATS 1
#endif
/***********************************************************************
//
************************************************************************/
#define M3O_BITS M2O_BITS
#define M3L_BITS CHAR_BIT
#define M3_MAX_LEN (M3_MIN_LEN + LZO_SIZE(M3L_BITS) - 1)
#define _MAX_OFFSET _M2_MAX_OFFSET
#define LZO_NO_M3 1
#include "lzo1b_de.h"
#include "stats1b.h"
#include "lzo1b_cc.h"
/***********************************************************************
// check for total LZO1/LZO1A compatibility
************************************************************************/
#undef M2_MARKER
#define M2_MARKER (1 << M2O_BITS)
#if (R_BITS != 5)
# error
#endif
#if (M2O_BITS != 5)
# error
#endif
#if (M3O_BITS != 5)
# error
#endif
#if (M2_MIN_LEN != 3)
# error
#endif
#if (M2_MAX_LEN != 8)
# error
#endif
#if (M3_MIN_LEN != 9)
# error
#endif
#if (M3_MAX_LEN != 264)
# error
#endif
#if (_M2_MAX_OFFSET != (1u << 13))
# error
#endif
#if (_M2_MAX_OFFSET != _M3_MAX_OFFSET)
# error
#endif
#if (_M2_MAX_OFFSET != _MAX_OFFSET)
# error
#endif
#if (R0MIN != 32)
# error
#endif
#if (R0MAX != 287)
# error
#endif
#if (R0FAST != 280)
# error
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* config1b.h -- configuration for the LZO1B algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG1B_H
#define __LZO_CONFIG1B_H 1
#include "lzo_conf.h"
#include <lzo/lzo1b.h>
/***********************************************************************
// algorithm configuration
************************************************************************/
/* run bits (4 - 5) - the compressor and the decompressor
* must use the same value. */
#if !defined(RBITS)
# define RBITS 5
#endif
/* dictionary depth (0 - 6) - this only affects the compressor.
* 0 is fastest, 6 is best compression ratio */
#if !defined(DDBITS)
# define DDBITS 0
#endif
/* compression level (1 - 9) - this only affects the compressor.
* 1 is fastest, 9 is best compression ratio */
#if !defined(CLEVEL)
# define CLEVEL 1 /* fastest by default */
#endif
/* check configuration */
#if (RBITS < 4 || RBITS > 5)
# error "invalid RBITS"
#endif
#if (DDBITS < 0 || DDBITS > 6)
# error "invalid DDBITS"
#endif
#if (CLEVEL < 1 || CLEVEL > 9)
# error "invalid CLEVEL"
#endif
/***********************************************************************
// internal configuration
************************************************************************/
/* add a special code so that the decompressor can detect the
* end of the compressed data block (overhead is 3 bytes per block) */
#define LZO_EOF_CODE 1
/***********************************************************************
// algorithm internal configuration
************************************************************************/
/* choose the hashing strategy */
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
#endif
/* config */
#define R_BITS RBITS
#define DD_BITS DDBITS
#ifndef D_BITS
#define D_BITS 14
#endif
/***********************************************************************
// optimization and debugging
************************************************************************/
/* Collect statistics */
#if 0 && !defined(LZO_COLLECT_STATS)
# define LZO_COLLECT_STATS 1
#endif
/***********************************************************************
//
************************************************************************/
#include "lzo1b_de.h"
#include "stats1b.h"
#include "lzo1b_cc.h"
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* config1c.h -- configuration for the LZO1C algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG1C_H
#define __LZO_CONFIG1C_H 1
#include "lzo_conf.h"
#include <lzo/lzo1c.h>
/***********************************************************************
// algorithm configuration
************************************************************************/
/* run bits (4 - 5) - the compressor and the decompressor
* must use the same value. */
#if !defined(RBITS)
# define RBITS 5
#endif
/* dictionary depth (0 - 6) - this only affects the compressor.
* 0 is fastest, 6 is best compression ratio */
#if !defined(DDBITS)
# define DDBITS 0
#endif
/* compression level (1 - 9) - this only affects the compressor.
* 1 is fastest, 9 is best compression ratio */
#if !defined(CLEVEL)
# define CLEVEL 1 /* fastest by default */
#endif
/* check configuration */
#if (RBITS < 4 || RBITS > 5)
# error "invalid RBITS"
#endif
#if (DDBITS < 0 || DDBITS > 6)
# error "invalid DDBITS"
#endif
#if (CLEVEL < 1 || CLEVEL > 9)
# error "invalid CLEVEL"
#endif
/***********************************************************************
// internal configuration
************************************************************************/
/* add a special code so that the decompressor can detect the
* end of the compressed data block (overhead is 3 bytes per block) */
#define LZO_EOF_CODE 1
/***********************************************************************
// algorithm internal configuration
************************************************************************/
/* choose the hashing strategy */
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
#endif
/* config */
#define R_BITS RBITS
#define DD_BITS DDBITS
#ifndef D_BITS
#define D_BITS 14
#endif
/***********************************************************************
// optimization and debugging
************************************************************************/
/* Collect statistics */
#if 0 && !defined(LZO_COLLECT_STATS)
# define LZO_COLLECT_STATS 1
#endif
/***********************************************************************
//
************************************************************************/
/* good parameters when using a blocksize of 8kB */
#define M3O_BITS 6
#undef LZO_DETERMINISTIC
#include "lzo1b_de.h"
#include "stats1c.h"
#include "lzo1c_cc.h"
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* config1f.h -- configuration for the LZO1F algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG1F_H
#define __LZO_CONFIG1F_H 1
#include "lzo_conf.h"
#include <lzo/lzo1f.h>
/***********************************************************************
//
************************************************************************/
#define LZO_EOF_CODE 1
#undef LZO_DETERMINISTIC
#define M2_MAX_OFFSET 0x0800
#define M3_MAX_OFFSET 0x3fff
#define M2_MIN_LEN 3
#define M2_MAX_LEN 8
#define M3_MIN_LEN 3
#define M3_MAX_LEN 33
#define M3_MARKER 224
/***********************************************************************
//
************************************************************************/
#ifndef MIN_LOOKAHEAD
#define MIN_LOOKAHEAD (M2_MAX_LEN + 1)
#endif
#if defined(LZO_NEED_DICT_H)
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
#endif
#define DL_MIN_LEN M2_MIN_LEN
#include "lzo_dict.h"
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* config1x.h -- configuration for the LZO1X algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG1X_H
#define __LZO_CONFIG1X_H 1
#if !defined(LZO1X) && !defined(LZO1Y) && !defined(LZO1Z)
# define LZO1X 1
#endif
#include "lzo_conf.h"
#if !defined(__LZO_IN_MINILZO)
#include <lzo/lzo1x.h>
#endif
/***********************************************************************
//
************************************************************************/
#ifndef LZO_EOF_CODE
#define LZO_EOF_CODE 1
#endif
#undef LZO_DETERMINISTIC
#define M1_MAX_OFFSET 0x0400
#ifndef M2_MAX_OFFSET
#define M2_MAX_OFFSET 0x0800
#endif
#define M3_MAX_OFFSET 0x4000
#define M4_MAX_OFFSET 0xbfff
#define MX_MAX_OFFSET (M1_MAX_OFFSET + M2_MAX_OFFSET)
#define M1_MIN_LEN 2
#define M1_MAX_LEN 2
#define M2_MIN_LEN 3
#ifndef M2_MAX_LEN
#define M2_MAX_LEN 8
#endif
#define M3_MIN_LEN 3
#define M3_MAX_LEN 33
#define M4_MIN_LEN 3
#define M4_MAX_LEN 9
#define M1_MARKER 0
#define M2_MARKER 64
#define M3_MARKER 32
#define M4_MARKER 16
/***********************************************************************
//
************************************************************************/
#ifndef MIN_LOOKAHEAD
#define MIN_LOOKAHEAD (M2_MAX_LEN + 1)
#endif
#if defined(LZO_NEED_DICT_H)
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_B
#endif
#define DL_MIN_LEN M2_MIN_LEN
#include "lzo_dict.h"
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* config1y.h -- configuration for the LZO1Y algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG1Y_H
#define __LZO_CONFIG1Y_H 1
#if !defined(LZO1Y)
# define LZO1Y 1
#endif
#include "lzo_conf.h"
#include <lzo/lzo1y.h>
#define M2_MAX_LEN 14
#define M2_MAX_OFFSET 0x0400
#include "config1x.h"
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* config1z.h -- configuration for the LZO1Z algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG1Z_H
#define __LZO_CONFIG1Z_H 1
#if !defined(LZO1Z)
# define LZO1Z 1
#endif
#include "lzo_conf.h"
#include <lzo/lzo1z.h>
#define M2_MAX_OFFSET 0x0700
#include "config1x.h"
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* config2a.h -- configuration for the LZO2A algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_CONFIG2A_H
#define __LZO_CONFIG2A_H 1
#include "lzo_conf.h"
#include <lzo/lzo2a.h>
/***********************************************************************
// algorithm configuration
************************************************************************/
/* dictionary depth (0 - 6) - this only affects the compressor.
* 0 is fastest, 6 is best compression ratio */
#if !defined(DDBITS)
# define DDBITS 0
#endif
/* compression level (1 - 9) - this only affects the compressor.
* 1 is fastest, 9 is best compression ratio */
#if !defined(CLEVEL)
# define CLEVEL 1 /* fastest by default */
#endif
/* check configuration */
#if (DDBITS < 0 || DDBITS > 6)
# error "invalid DDBITS"
#endif
#if (CLEVEL < 1 || CLEVEL > 9)
# error "invalid CLEVEL"
#endif
/***********************************************************************
// internal configuration
************************************************************************/
#if 1
#define SWD_N 8191 /* size of ring buffer */
#else
#define SWD_N 16383 /* size of ring buffer */
#endif
#define M1_MIN_LEN 2
#define M1_MAX_LEN 5
#define M2_MIN_LEN 3
#define M3_MIN_LEN 3
/* add a special code so that the decompressor can detect the
* end of the compressed data block (overhead is 3 bytes per block) */
#define LZO_EOF_CODE 1
#undef LZO_DETERMINISTIC
/***********************************************************************
// algorithm internal configuration
************************************************************************/
/* choose the hashing strategy */
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
#endif
/* config */
#define DD_BITS DDBITS
#ifndef D_BITS
#define D_BITS 14
#endif
/***********************************************************************
// optimization and debugging
************************************************************************/
/* Collect statistics */
#if 0 && !defined(LZO_COLLECT_STATS)
# define LZO_COLLECT_STATS 1
#endif
/***********************************************************************
//
************************************************************************/
/* get bits */
#define _NEEDBITS \
{ _NEEDBYTE; b |= ((lzo_uint32_t) _NEXTBYTE) << k; k += 8; assert(k <= 32); }
#define NEEDBITS(j) { assert((j) < 8); if (k < (j)) _NEEDBITS }
/* set bits */
#define SETBITS(j,x) { b |= ((lzo_uint32_t)(x)) << k; k += (j); assert(k <= 32); }
/* access bits */
#define MASKBITS(j) (b & ((((lzo_uint32_t)1 << (j)) - 1)))
/* drop bits */
#define DUMPBITS(j) { assert(k >= j); b >>= (j); k -= (j); }
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1.c -- implementation of the LZO1 algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo_conf.h"
#include <lzo/lzo1.h>
/***********************************************************************
// The next two defines can be changed to customize LZO1.
// The default version is LZO1-5/1.
************************************************************************/
/* run bits (3 - 5) - the compressor and the decompressor
* must use the same value. */
#if !defined(RBITS)
# define RBITS 5
#endif
/* compression level (1 - 9) - this only affects the compressor.
* 1 is fastest, 9 is best compression ratio */
#if !defined(CLEVEL)
# define CLEVEL 1 /* fastest by default */
#endif
/* check configuration */
#if (RBITS < 3 || RBITS > 5)
# error "invalid RBITS"
#endif
#if (CLEVEL < 1 || CLEVEL > 9)
# error "invalid CLEVEL"
#endif
/***********************************************************************
// You should not have to change anything below this line.
************************************************************************/
/*
Format of the marker byte
76543210
--------
00000000 a long run (a 'R0' run) - there are short and long R0 runs
000rrrrr a short run with len r
mmmooooo a short match (len = 2+m, o = offset low bits)
111ooooo a long match (o = offset low bits)
*/
#define RSIZE (1 << RBITS)
#define RMASK (RSIZE - 1)
#define OBITS RBITS /* offset and run-length use same bits */
#define OSIZE (1 << OBITS)
#define OMASK (OSIZE - 1)
#define MBITS (8 - OBITS)
#define MSIZE (1 << MBITS)
#define MMASK (MSIZE - 1)
/* sanity checks */
#if (OBITS < 3 || OBITS > 5)
# error "invalid OBITS"
#endif
#if (MBITS < 3 || MBITS > 5)
# error "invalid MBITS"
#endif
/***********************************************************************
// some macros to improve readability
************************************************************************/
/* Minimum len of a match */
#define MIN_MATCH 3
#define THRESHOLD (MIN_MATCH - 1)
/* Minimum len of match coded in 2 bytes */
#define MIN_MATCH_SHORT MIN_MATCH
/* Maximum len of match coded in 2 bytes */
#define MAX_MATCH_SHORT (THRESHOLD + (MSIZE - 2))
/* MSIZE - 2: 0 is used to indicate runs,
* MSIZE-1 is used to indicate a long match */
/* Minimum len of match coded in 3 bytes */
#define MIN_MATCH_LONG (MAX_MATCH_SHORT + 1)
/* Maximum len of match coded in 3 bytes */
#define MAX_MATCH_LONG (MIN_MATCH_LONG + 255)
/* Maximum offset of a match */
#define MAX_OFFSET (1 << (8 + OBITS))
/*
RBITS | MBITS MIN THR. MSIZE MAXS MINL MAXL MAXO R0MAX R0FAST
======+===============================================================
3 | 5 3 2 32 32 33 288 2048 263 256
4 | 4 3 2 16 16 17 272 4096 271 264
5 | 3 3 2 8 8 9 264 8192 287 280
*/
/***********************************************************************
// internal configuration
// all of these affect compression only
************************************************************************/
/* choose the hashing strategy */
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
#endif
#define D_INDEX1(d,p) d = DM(DMUL(0x21,DX2(p,5,5)) >> 5)
#define D_INDEX2(d,p) d = d ^ D_MASK
#define DBITS (8 + RBITS)
#include "lzo_dict.h"
#define DVAL_LEN DVAL_LOOKAHEAD
/***********************************************************************
// get algorithm info, return memory required for compression
************************************************************************/
LZO_EXTERN(lzo_uint) lzo1_info ( int *rbits, int *clevel );
LZO_PUBLIC(lzo_uint)
lzo1_info ( int *rbits, int *clevel )
{
if (rbits)
*rbits = RBITS;
if (clevel)
*clevel = CLEVEL;
return D_SIZE * lzo_sizeof(lzo_bytep);
}
/***********************************************************************
// decode a R0 literal run (a long run)
************************************************************************/
#define R0MIN (RSIZE) /* Minimum len of R0 run of literals */
#define R0MAX (R0MIN + 255) /* Maximum len of R0 run of literals */
#define R0FAST (R0MAX & ~7u) /* R0MAX aligned to 8 byte boundary */
#if (R0MAX - R0FAST != 7) || ((R0FAST & 7) != 0)
# error "something went wrong"
#endif
/* 7 special codes from R0FAST+1 .. R0MAX
* these codes mean long R0 runs with lengths
* 512, 1024, 2048, 4096, 8192, 16384, 32768 */
/***********************************************************************
// LZO1 decompress a block of data.
//
// Could be easily translated into assembly code.
************************************************************************/
LZO_PUBLIC(int)
lzo1_decompress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
lzo_bytep op;
const lzo_bytep ip;
const lzo_bytep const ip_end = in + in_len;
lzo_uint t;
LZO_UNUSED(wrkmem);
op = out;
ip = in;
while (ip < ip_end)
{
t = *ip++; /* get marker */
if (t < R0MIN) /* a literal run */
{
if (t == 0) /* a R0 literal run */
{
t = *ip++;
if (t >= R0FAST - R0MIN) /* a long R0 run */
{
t -= R0FAST - R0MIN;
if (t == 0)
t = R0FAST;
else
{
#if 0
t = 256u << ((unsigned) t);
#else
/* help the optimizer */
lzo_uint tt = 256;
do tt <<= 1; while (--t > 0);
t = tt;
#endif
}
MEMCPY8_DS(op,ip,t);
continue;
}
t += R0MIN;
}
MEMCPY_DS(op,ip,t);
}
else /* a match */
{
lzo_uint tt;
/* get match offset */
const lzo_bytep m_pos = op - 1;
m_pos -= (lzo_uint)(t & OMASK) | (((lzo_uint) *ip++) << OBITS);
/* get match len */
if (t >= ((MSIZE - 1) << OBITS)) /* all m-bits set */
tt = (MIN_MATCH_LONG - THRESHOLD) + *ip++; /* a long match */
else
tt = t >> OBITS; /* a short match */
assert(m_pos >= out);
assert(m_pos < op);
/* a half unrolled loop */
*op++ = *m_pos++;
*op++ = *m_pos++;
MEMCPY_DS(op,m_pos,tt);
}
}
*out_len = pd(op, out);
/* the next line is the only check in the decompressor ! */
return (ip == ip_end ? LZO_E_OK :
(ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
}
/***********************************************************************
// code a literal run
************************************************************************/
static
#if LZO_ARCH_AVR
__lzo_noinline
#endif
lzo_bytep
store_run(lzo_bytep op, const lzo_bytep ii, lzo_uint r_len)
{
assert(r_len > 0);
/* code a long R0 run */
if (r_len >= 512)
{
unsigned r_bits = 7; /* 256 << 7 == 32768 */
do {
while (r_len >= (256u << r_bits))
{
r_len -= (256u << r_bits);
*op++ = 0; *op++ = LZO_BYTE((R0FAST - R0MIN) + r_bits);
MEMCPY8_DS(op, ii, (256u << r_bits));
}
} while (--r_bits > 0);
}
while (r_len >= R0FAST)
{
r_len -= R0FAST;
*op++ = 0; *op++ = R0FAST - R0MIN;
MEMCPY8_DS(op, ii, R0FAST);
}
if (r_len >= R0MIN)
{
/* code a short R0 run */
*op++ = 0; *op++ = LZO_BYTE(r_len - R0MIN);
MEMCPY_DS(op, ii, r_len);
}
else if (r_len > 0)
{
/* code a 'normal' run */
*op++ = LZO_BYTE(r_len);
MEMCPY_DS(op, ii, r_len);
}
assert(r_len == 0);
return op;
}
/***********************************************************************
// LZO1 compress a block of data.
//
// Could be translated into assembly code without too much effort.
//
// I apologize for the spaghetti code, but it really helps the optimizer.
************************************************************************/
static int
do_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
const lzo_bytep ip;
#if defined(__LZO_HASH_INCREMENTAL)
lzo_xint dv;
#endif
lzo_bytep op;
const lzo_bytep m_pos;
const lzo_bytep const ip_end = in+in_len - DVAL_LEN - MIN_MATCH_LONG;
const lzo_bytep const in_end = in+in_len - DVAL_LEN;
const lzo_bytep ii;
lzo_dict_p const dict = (lzo_dict_p) wrkmem;
#if !defined(NDEBUG)
const lzo_bytep m_pos_sav;
#endif
op = out;
ip = in;
ii = ip; /* point to start of literal run */
if (in_len <= MIN_MATCH_LONG + DVAL_LEN + 1)
goto the_end;
/* init dictionary */
#if (LZO_DETERMINISTIC)
BZERO8_PTR(wrkmem,sizeof(lzo_dict_t),D_SIZE);
#endif
DVAL_FIRST(dv,ip);
UPDATE_D(dict,0,dv,ip,in);
ip++;
DVAL_NEXT(dv,ip);
do {
LZO_DEFINE_UNINITIALIZED_VAR(lzo_uint, m_off, 0);
lzo_uint dindex;
DINDEX1(dindex,ip);
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS(m_pos,m_off,in,ip,MAX_OFFSET))
goto literal;
if (m_pos[0] == ip[0] && m_pos[1] == ip[1] && m_pos[2] == ip[2])
goto match;
DINDEX2(dindex,ip);
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS(m_pos,m_off,in,ip,MAX_OFFSET))
goto literal;
if (m_pos[0] == ip[0] && m_pos[1] == ip[1] && m_pos[2] == ip[2])
goto match;
goto literal;
literal:
UPDATE_I(dict,0,dindex,ip,in);
if (++ip >= ip_end)
break;
continue;
match:
UPDATE_I(dict,0,dindex,ip,in);
#if !defined(NDEBUG) && (LZO_DICT_USE_PTR)
m_pos_sav = m_pos;
#endif
m_pos += 3;
{
/* we have found a match (of at least length 3) */
#if !defined(NDEBUG) && !(LZO_DICT_USE_PTR)
assert((m_pos_sav = ip - m_off) == (m_pos - 3));
#endif
/* 1) store the current literal run */
if (pd(ip,ii) > 0)
{
lzo_uint t = pd(ip,ii);
#if 1
/* OPTIMIZED: inline the copying of a short run */
if (t < R0MIN)
{
*op++ = LZO_BYTE(t);
MEMCPY_DS(op, ii, t);
}
else
#endif
op = store_run(op,ii,t);
}
/* 2a) compute match len */
ii = ip; /* point to start of current match */
/* we already matched MIN_MATCH bytes,
* m_pos also already advanced MIN_MATCH bytes */
ip += MIN_MATCH;
assert(m_pos < ip);
/* try to match another MIN_MATCH_LONG - MIN_MATCH bytes
* to see if we get a long match */
#define PS *m_pos++ != *ip++
#if (MIN_MATCH_LONG - MIN_MATCH == 2) /* MBITS == 2 */
if (PS || PS)
#elif (MIN_MATCH_LONG - MIN_MATCH == 6) /* MBITS == 3 */
if (PS || PS || PS || PS || PS || PS)
#elif (MIN_MATCH_LONG - MIN_MATCH == 14) /* MBITS == 4 */
if (PS || PS || PS || PS || PS || PS || PS ||
PS || PS || PS || PS || PS || PS || PS)
#elif (MIN_MATCH_LONG - MIN_MATCH == 30) /* MBITS == 5 */
if (PS || PS || PS || PS || PS || PS || PS || PS ||
PS || PS || PS || PS || PS || PS || PS || PS ||
PS || PS || PS || PS || PS || PS || PS || PS ||
PS || PS || PS || PS || PS || PS)
#else
# error "MBITS not yet implemented"
#endif
{
lzo_uint m_len;
/* 2b) code a short match */
assert(pd(ip,m_pos) == m_off);
--ip; /* ran one too far, point back to non-match */
m_len = pd(ip, ii);
assert(m_len >= MIN_MATCH_SHORT);
assert(m_len <= MAX_MATCH_SHORT);
assert(m_off > 0);
assert(m_off <= MAX_OFFSET);
assert(ii-m_off == m_pos_sav);
assert(lzo_memcmp(m_pos_sav,ii,m_len) == 0);
--m_off;
/* code short match len + low offset bits */
*op++ = LZO_BYTE(((m_len - THRESHOLD) << OBITS) |
(m_off & OMASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> OBITS);
/* 2c) Insert phrases (beginning with ii+1) into the dictionary. */
#define SI /* nothing */
#define DI ++ii; DVAL_NEXT(dv,ii); UPDATE_D(dict,0,dv,ii,in);
#define XI assert(ii < ip); ii = ip; DVAL_FIRST(dv,(ip));
#if (CLEVEL == 9) || (CLEVEL >= 7 && MBITS <= 4) || (CLEVEL >= 5 && MBITS <= 3)
/* Insert the whole match (ii+1)..(ip-1) into dictionary. */
++ii;
do {
DVAL_NEXT(dv,ii);
UPDATE_D(dict,0,dv,ii,in);
} while (++ii < ip);
DVAL_NEXT(dv,ii);
assert(ii == ip);
DVAL_ASSERT(dv,ip);
#elif (CLEVEL >= 3)
SI DI DI XI
#elif (CLEVEL >= 2)
SI DI XI
#else
XI
#endif
}
else
{
/* we've found a long match - see how far we can still go */
const lzo_bytep end;
lzo_uint m_len;
assert(ip <= in_end);
assert(ii == ip - MIN_MATCH_LONG);
if (pd(in_end,ip) <= (MAX_MATCH_LONG - MIN_MATCH_LONG))
end = in_end;
else
{
end = ip + (MAX_MATCH_LONG - MIN_MATCH_LONG);
assert(end < in_end);
}
while (ip < end && *m_pos == *ip)
m_pos++, ip++;
assert(ip <= in_end);
/* 2b) code the long match */
m_len = pd(ip, ii);
assert(m_len >= MIN_MATCH_LONG);
assert(m_len <= MAX_MATCH_LONG);
assert(m_off > 0);
assert(m_off <= MAX_OFFSET);
assert(ii-m_off == m_pos_sav);
assert(lzo_memcmp(m_pos_sav,ii,m_len) == 0);
assert(pd(ip,m_pos) == m_off);
--m_off;
/* code long match flag + low offset bits */
*op++ = LZO_BYTE(((MSIZE - 1) << OBITS) | (m_off & OMASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> OBITS);
/* code match len */
*op++ = LZO_BYTE(m_len - MIN_MATCH_LONG);
/* 2c) Insert phrases (beginning with ii+1) into the dictionary. */
#if (CLEVEL == 9)
/* Insert the whole match (ii+1)..(ip-1) into dictionary. */
/* This is not recommended because it is slow. */
++ii;
do {
DVAL_NEXT(dv,ii);
UPDATE_D(dict,0,dv,ii,in);
} while (++ii < ip);
DVAL_NEXT(dv,ii);
assert(ii == ip);
DVAL_ASSERT(dv,ip);
#elif (CLEVEL >= 8)
SI DI DI DI DI DI DI DI DI XI
#elif (CLEVEL >= 7)
SI DI DI DI DI DI DI DI XI
#elif (CLEVEL >= 6)
SI DI DI DI DI DI DI XI
#elif (CLEVEL >= 5)
SI DI DI DI DI XI
#elif (CLEVEL >= 4)
SI DI DI DI XI
#elif (CLEVEL >= 3)
SI DI DI XI
#elif (CLEVEL >= 2)
SI DI XI
#else
XI
#endif
}
/* ii now points to the start of next literal run */
assert(ii == ip);
}
} while (ip < ip_end);
the_end:
assert(ip <= in_end);
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
/* return -1 if op == out to indicate that we
* couldn't compress and didn't copy anything.
*/
if (op == out)
{
*out_len = 0;
return LZO_E_NOT_COMPRESSIBLE;
}
#endif
/* store the final literal run */
if (pd(in_end+DVAL_LEN,ii) > 0)
op = store_run(op,ii,pd(in_end+DVAL_LEN,ii));
*out_len = pd(op, out);
return 0; /* compression went ok */
}
/***********************************************************************
// compress public entry point.
************************************************************************/
LZO_PUBLIC(int)
lzo1_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
int r = LZO_E_OK;
/* don't try to compress a block that's too short */
if (in_len == 0)
*out_len = 0;
else if (in_len <= MIN_MATCH_LONG + DVAL_LEN + 1)
{
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
r = LZO_E_NOT_COMPRESSIBLE;
#else
*out_len = pd(store_run(out,in,in_len), out);
#endif
}
else
r = do_compress(in,in_len,out,out_len,wrkmem);
return r;
}
/* vim:set ts=4 sw=4 et: */

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/* lzo1_99.c -- implementation of the LZO1-99 algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 99
#define DDBITS 3
#define CLEVEL 9
/***********************************************************************
//
************************************************************************/
#define LZO_NEED_DICT_H 1
#include "config1.h"
/***********************************************************************
// compression internal entry point.
************************************************************************/
static int
_lzo1_do_compress ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_compress_t func )
{
int r;
/* don't try to compress a block that's too short */
if (in_len == 0)
{
*out_len = 0;
r = LZO_E_OK;
}
else if (in_len <= MIN_LOOKAHEAD + 1)
{
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
*out_len = 0;
r = LZO_E_NOT_COMPRESSIBLE;
#else
*out_len = pd(STORE_RUN(out,in,in_len), out);
r = (*out_len > in_len) ? LZO_E_OK : LZO_E_ERROR;
#endif
}
else
r = func(in,in_len,out,out_len,wrkmem);
return r;
}
/***********************************************************************
//
************************************************************************/
#if !defined(COMPRESS_ID)
#define COMPRESS_ID _LZO_ECONCAT2(DD_BITS,CLEVEL)
#endif
#define LZO_CODE_MATCH_INCLUDE_FILE "lzo1_cm.ch"
#include "lzo1b_c.ch"
/***********************************************************************
//
************************************************************************/
#define LZO_COMPRESS \
LZO_PP_ECONCAT3(lzo1_,COMPRESS_ID,_compress)
#define LZO_COMPRESS_FUNC \
LZO_PP_ECONCAT3(_lzo1_,COMPRESS_ID,_compress_func)
/***********************************************************************
//
************************************************************************/
LZO_PUBLIC(int)
LZO_COMPRESS ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
return _lzo1_do_compress(in,in_len,out,out_len,wrkmem,do_compress);
}
/* vim:set ts=4 sw=4 et: */

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/* lzo1_cm.ch -- implementation of the LZO1 compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#include "lzo1a_cm.ch"
/* vim:set ts=4 sw=4 et: */

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/* lzo1_d.ch -- common decompression stuff
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#if defined(LZO_TEST_OVERRUN)
# if !defined(LZO_TEST_OVERRUN_INPUT)
# define LZO_TEST_OVERRUN_INPUT 2
# endif
# if !defined(LZO_TEST_OVERRUN_OUTPUT)
# define LZO_TEST_OVERRUN_OUTPUT 2
# endif
# if !defined(LZO_TEST_OVERRUN_LOOKBEHIND)
# define LZO_TEST_OVERRUN_LOOKBEHIND 1
# endif
#endif
/***********************************************************************
// Overrun detection is internally handled by these macros:
//
// TEST_IP test input overrun at loop begin
// NEED_IP test input overrun at every input byte
//
// TEST_OP test output overrun at loop begin
// NEED_OP test output overrun at every output byte
//
// TEST_LB test match position
//
// The fastest decompressor results when testing for no overruns
// and using LZO_EOF_CODE.
************************************************************************/
#undef TEST_IP
#undef TEST_OP
#undef TEST_IP_AND_TEST_OP
#undef TEST_LB
#undef TEST_LBO
#undef NEED_IP
#undef NEED_OP
#undef TEST_IV
#undef TEST_OV
#undef HAVE_TEST_IP
#undef HAVE_TEST_OP
#undef HAVE_NEED_IP
#undef HAVE_NEED_OP
#undef HAVE_ANY_IP
#undef HAVE_ANY_OP
#if defined(LZO_TEST_OVERRUN_INPUT)
# if (LZO_TEST_OVERRUN_INPUT >= 1)
# define TEST_IP (ip < ip_end)
# endif
# if (LZO_TEST_OVERRUN_INPUT >= 2)
# define NEED_IP(x) \
if ((lzo_uint)(ip_end - ip) < (lzo_uint)(x)) goto input_overrun
# define TEST_IV(x) if ((x) > (lzo_uint)0 - (511)) goto input_overrun
# endif
#endif
#if defined(LZO_TEST_OVERRUN_OUTPUT)
# if (LZO_TEST_OVERRUN_OUTPUT >= 1)
# define TEST_OP (op <= op_end)
# endif
# if (LZO_TEST_OVERRUN_OUTPUT >= 2)
# undef TEST_OP /* don't need both of the tests here */
# define NEED_OP(x) \
if ((lzo_uint)(op_end - op) < (lzo_uint)(x)) goto output_overrun
# define TEST_OV(x) if ((x) > (lzo_uint)0 - (511)) goto output_overrun
# endif
#endif
#if defined(LZO_TEST_OVERRUN_LOOKBEHIND)
# define TEST_LB(m_pos) if (PTR_LT(m_pos,out) || PTR_GE(m_pos,op)) goto lookbehind_overrun
# define TEST_LBO(m_pos,o) if (PTR_LT(m_pos,out) || PTR_GE(m_pos,op-(o))) goto lookbehind_overrun
#else
# define TEST_LB(m_pos) ((void) 0)
# define TEST_LBO(m_pos,o) ((void) 0)
#endif
#if !defined(LZO_EOF_CODE) && !defined(TEST_IP)
/* if we have no EOF code, we have to test for the end of the input */
# define TEST_IP (ip < ip_end)
#endif
#if defined(TEST_IP)
# define HAVE_TEST_IP 1
#else
# define TEST_IP 1
#endif
#if defined(TEST_OP)
# define HAVE_TEST_OP 1
#else
# define TEST_OP 1
#endif
#if defined(HAVE_TEST_IP) && defined(HAVE_TEST_OP)
# define TEST_IP_AND_TEST_OP (TEST_IP && TEST_OP)
#elif defined(HAVE_TEST_IP)
# define TEST_IP_AND_TEST_OP TEST_IP
#elif defined(HAVE_TEST_OP)
# define TEST_IP_AND_TEST_OP TEST_OP
#else
# define TEST_IP_AND_TEST_OP 1
#endif
#if defined(NEED_IP)
# define HAVE_NEED_IP 1
#else
# define NEED_IP(x) ((void) 0)
# define TEST_IV(x) ((void) 0)
#endif
#if defined(NEED_OP)
# define HAVE_NEED_OP 1
#else
# define NEED_OP(x) ((void) 0)
# define TEST_OV(x) ((void) 0)
#endif
#if defined(HAVE_TEST_IP) || defined(HAVE_NEED_IP)
# define HAVE_ANY_IP 1
#endif
#if defined(HAVE_TEST_OP) || defined(HAVE_NEED_OP)
# define HAVE_ANY_OP 1
#endif
/* vim:set ts=4 sw=4 et: */

643
extern/lzo/src/lzo1a.c vendored Normal file
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@ -0,0 +1,643 @@
/* lzo1a.c -- implementation of the LZO1A algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo_conf.h"
#include <lzo/lzo1a.h>
/***********************************************************************
// The next two defines can be changed to customize LZO1A.
// The default version is LZO1A-5/1.
************************************************************************/
/* run bits (3 - 5) - the compressor and the decompressor
* must use the same value. */
#if !defined(RBITS)
# define RBITS 5
#endif
/* compression level (1 - 9) - this only affects the compressor.
* 1 is fastest, 9 is best compression ratio
*/
#if !defined(CLEVEL)
# define CLEVEL 1 /* fastest by default */
#endif
/* Collect statistics */
#if 0 && !defined(LZO_COLLECT_STATS)
# define LZO_COLLECT_STATS 1
#endif
/***********************************************************************
// You should not have to change anything below this line.
************************************************************************/
/* check configuration */
#if (RBITS < 3 || RBITS > 5)
# error "invalid RBITS"
#endif
#if (CLEVEL < 1 || CLEVEL > 9)
# error "invalid CLEVEL"
#endif
/***********************************************************************
// internal configuration
// all of these affect compression only
************************************************************************/
/* choose the hashing strategy */
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
#endif
#define D_INDEX1(d,p) d = DM(DMUL(0x21,DX2(p,5,5)) >> 5)
#define D_INDEX2(d,p) d = d ^ D_MASK
#include "lzo1a_de.h"
#include "stats1a.h"
/* check other constants */
#if (LBITS < 5 || LBITS > 8)
# error "invalid LBITS"
#endif
#if (LZO_COLLECT_STATS)
static lzo1a_stats_t lzo_statistics;
lzo1a_stats_t *lzo1a_stats = &lzo_statistics;
# define lzo_stats lzo1a_stats
#endif
/***********************************************************************
// get algorithm info, return memory required for compression
************************************************************************/
LZO_EXTERN(lzo_uint) lzo1a_info ( int *rbits, int *clevel );
LZO_PUBLIC(lzo_uint)
lzo1a_info ( int *rbits, int *clevel )
{
if (rbits)
*rbits = RBITS;
if (clevel)
*clevel = CLEVEL;
return D_SIZE * lzo_sizeof(lzo_bytep);
}
/***********************************************************************
// LZO1A decompress a block of data.
//
// Could be easily translated into assembly code.
************************************************************************/
LZO_PUBLIC(int)
lzo1a_decompress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
lzo_bytep op;
const lzo_bytep ip;
lzo_uint t;
const lzo_bytep m_pos;
const lzo_bytep const ip_end = in + in_len;
LZO_UNUSED(wrkmem);
op = out;
ip = in;
while (ip < ip_end)
{
t = *ip++; /* get marker */
LZO_STATS(lzo_stats->marker[t]++);
if (t == 0) /* a R0 literal run */
{
t = *ip++;
if (t >= R0FAST - R0MIN) /* a long R0 run */
{
t -= R0FAST - R0MIN;
if (t == 0)
t = R0FAST;
else
{
#if 0
t = 256u << ((unsigned) t);
#else
/* help the optimizer */
lzo_uint tt = 256;
do tt <<= 1; while (--t > 0);
t = tt;
#endif
}
MEMCPY8_DS(op,ip,t);
continue;
}
t += R0MIN;
goto literal;
}
else if (t < R0MIN) /* a short literal run */
{
literal:
MEMCPY_DS(op,ip,t);
/* after a literal a match must follow */
while (ip < ip_end)
{
t = *ip++; /* get R1 marker */
if (t >= R0MIN)
goto match;
/* R1 match - a context sensitive 3 byte match + 1 byte literal */
assert((t & OMASK) == t);
m_pos = op - MIN_OFFSET;
m_pos -= t | (((lzo_uint) *ip++) << OBITS);
assert(m_pos >= out); assert(m_pos < op);
*op++ = m_pos[0];
*op++ = m_pos[1];
*op++ = m_pos[2];
*op++ = *ip++;
}
}
else /* a match */
{
match:
/* get match offset */
m_pos = op - MIN_OFFSET;
m_pos -= (t & OMASK) | (((lzo_uint) *ip++) << OBITS);
assert(m_pos >= out); assert(m_pos < op);
/* get match len */
if (t < ((MSIZE - 1) << OBITS)) /* a short match */
{
t >>= OBITS;
*op++ = *m_pos++;
*op++ = *m_pos++;
MEMCPY_DS(op,m_pos,t);
}
else /* a long match */
{
#if (LBITS < 8)
t = (MIN_MATCH_LONG - THRESHOLD) + ((lzo_uint)(*ip++) & LMASK);
#else
t = (MIN_MATCH_LONG - THRESHOLD) + (lzo_uint)(*ip++);
#endif
*op++ = *m_pos++;
*op++ = *m_pos++;
MEMCPY_DS(op,m_pos,t);
#if (LBITS < 8)
/* a very short literal following a long match */
t = ip[-1] >> LBITS;
if (t) do
*op++ = *ip++;
while (--t);
#endif
}
}
}
*out_len = pd(op, out);
/* the next line is the only check in the decompressor */
return (ip == ip_end ? LZO_E_OK :
(ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
}
/***********************************************************************
// LZO1A compress a block of data.
//
// I apologize for the spaghetti code, but it really helps the optimizer.
************************************************************************/
#include "lzo1a_cr.ch"
static int
do_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
const lzo_bytep ip;
#if defined(__LZO_HASH_INCREMENTAL)
lzo_xint dv;
#endif
const lzo_bytep m_pos;
lzo_bytep op;
const lzo_bytep const ip_end = in+in_len - DVAL_LEN - MIN_MATCH_LONG;
const lzo_bytep const in_end = in+in_len - DVAL_LEN;
const lzo_bytep ii;
lzo_dict_p const dict = (lzo_dict_p) wrkmem;
const lzo_bytep r1 = ip_end; /* pointer for R1 match (none yet) */
#if (LBITS < 8)
const lzo_bytep im = ip_end; /* pointer to last match start */
#endif
#if !defined(NDEBUG)
const lzo_bytep m_pos_sav;
#endif
op = out;
ip = in;
ii = ip; /* point to start of current literal run */
/* init dictionary */
#if (LZO_DETERMINISTIC)
BZERO8_PTR(wrkmem,sizeof(lzo_dict_t),D_SIZE);
#endif
DVAL_FIRST(dv,ip); UPDATE_D(dict,0,dv,ip,in); ip++;
DVAL_NEXT(dv,ip);
do {
LZO_DEFINE_UNINITIALIZED_VAR(lzo_uint, m_off, 0);
lzo_uint dindex;
DINDEX1(dindex,ip);
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,MAX_OFFSET))
goto literal;
if (m_pos[0] == ip[0] && m_pos[1] == ip[1] && m_pos[2] == ip[2])
goto match;
DINDEX2(dindex,ip);
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,MAX_OFFSET))
goto literal;
if (m_pos[0] == ip[0] && m_pos[1] == ip[1] && m_pos[2] == ip[2])
goto match;
goto literal;
literal:
UPDATE_I(dict,0,dindex,ip,in);
if (++ip >= ip_end)
break;
continue;
match:
UPDATE_I(dict,0,dindex,ip,in);
#if !defined(NDEBUG) && (LZO_DICT_USE_PTR)
assert(m_pos == NULL || m_pos >= in);
m_pos_sav = m_pos;
#endif
m_pos += 3;
{
/* we have found a match (of at least length 3) */
#if !defined(NDEBUG) && !(LZO_DICT_USE_PTR)
assert((m_pos_sav = ip - m_off) == (m_pos - 3));
#endif
assert(m_pos >= in);
assert(ip < ip_end);
/* 1) store the current literal run */
if (pd(ip,ii) > 0)
{
lzo_uint t = pd(ip,ii);
if (ip - r1 == MIN_MATCH + 1)
{
/* Code a context sensitive R1 match.
* This is tricky and somewhat difficult to explain:
* multiplex a literal run of length 1 into the previous
* short match of length MIN_MATCH.
* The key idea is:
* - after a short run a match MUST follow
* - therefore the value m = 000 in the mmmooooo marker is free
* - use 000ooooo to indicate a MIN_MATCH match (this
* is already coded) plus a 1 byte literal
*/
assert(t == 1);
/* modify marker byte */
assert((op[-2] >> OBITS) == (MIN_MATCH - THRESHOLD));
op[-2] &= OMASK;
assert((op[-2] >> OBITS) == 0);
/* copy 1 literal */
*op++ = *ii;
LZO_STATS(lzo_stats->r1_matches++);
r1 = ip; /* set new R1 pointer */
}
else if (t < R0MIN)
{
/* inline the copying of a short run */
#if (LBITS < 8)
if (t < (1 << (8-LBITS)) && ii - im >= MIN_MATCH_LONG)
{
/* Code a very short literal run into the
* previous long match length byte.
*/
LZO_STATS(lzo_stats->lit_runs_after_long_match++);
LZO_STATS(lzo_stats->lit_run_after_long_match[t]++);
assert(ii - im <= MAX_MATCH_LONG);
assert((op[-1] >> LBITS) == 0);
op[-1] = LZO_BYTE(op[-1] | (t << LBITS));
MEMCPY_DS(op, ii, t);
}
else
#endif
{
LZO_STATS(lzo_stats->lit_runs++);
LZO_STATS(lzo_stats->lit_run[t]++);
*op++ = LZO_BYTE(t);
MEMCPY_DS(op, ii, t);
r1 = ip; /* set new R1 pointer */
}
}
else if (t < R0FAST)
{
/* inline the copying of a short R0 run */
LZO_STATS(lzo_stats->r0short_runs++);
*op++ = 0; *op++ = LZO_BYTE(t - R0MIN);
MEMCPY_DS(op, ii, t);
r1 = ip; /* set new R1 pointer */
}
else
op = store_run(op,ii,t);
}
#if (LBITS < 8)
im = ip;
#endif
/* 2) compute match len */
ii = ip; /* point to start of current match */
/* we already matched MIN_MATCH bytes,
* m_pos also already advanced MIN_MATCH bytes */
ip += MIN_MATCH;
assert(m_pos < ip);
/* try to match another MIN_MATCH_LONG - MIN_MATCH bytes
* to see if we get a long match */
#define PS *m_pos++ != *ip++
#if (MIN_MATCH_LONG - MIN_MATCH == 2) /* MBITS == 2 */
if (PS || PS)
#elif (MIN_MATCH_LONG - MIN_MATCH == 6) /* MBITS == 3 */
if (PS || PS || PS || PS || PS || PS)
#elif (MIN_MATCH_LONG - MIN_MATCH == 14) /* MBITS == 4 */
if (PS || PS || PS || PS || PS || PS || PS ||
PS || PS || PS || PS || PS || PS || PS)
#elif (MIN_MATCH_LONG - MIN_MATCH == 30) /* MBITS == 5 */
if (PS || PS || PS || PS || PS || PS || PS || PS ||
PS || PS || PS || PS || PS || PS || PS || PS ||
PS || PS || PS || PS || PS || PS || PS || PS ||
PS || PS || PS || PS || PS || PS)
#else
# error "MBITS not yet implemented"
#endif
{
/* we've found a short match */
lzo_uint m_len;
/* 2a) compute match parameters */
assert(ip-m_pos == (int)m_off);
--ip; /* ran one too far, point back to non-match */
m_len = pd(ip, ii);
assert(m_len >= MIN_MATCH_SHORT);
assert(m_len <= MAX_MATCH_SHORT);
assert(m_off >= MIN_OFFSET);
assert(m_off <= MAX_OFFSET);
assert(ii-m_off == m_pos_sav);
assert(lzo_memcmp(m_pos_sav,ii,m_len) == 0);
m_off -= MIN_OFFSET;
/* 2b) code a short match */
/* code short match len + low offset bits */
*op++ = LZO_BYTE(((m_len - THRESHOLD) << OBITS) |
(m_off & OMASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> OBITS);
#if (LZO_COLLECT_STATS)
lzo_stats->short_matches++;
lzo_stats->short_match[m_len]++;
if (m_off < OSIZE)
lzo_stats->short_match_offset_osize[m_len]++;
if (m_off < 256)
lzo_stats->short_match_offset_256[m_len]++;
if (m_off < 1024)
lzo_stats->short_match_offset_1024[m_len]++;
#endif
/* 2c) Insert phrases (beginning with ii+1) into the dictionary. */
#define SI /* nothing */
#define DI ++ii; DVAL_NEXT(dv,ii); UPDATE_D(dict,0,dv,ii,in);
#define XI assert(ii < ip); ii = ip; DVAL_FIRST(dv,(ip));
#if (CLEVEL == 9) || (CLEVEL >= 7 && MBITS <= 4) || (CLEVEL >= 5 && MBITS <= 3)
/* Insert the whole match (ii+1)..(ip-1) into dictionary. */
++ii;
do {
DVAL_NEXT(dv,ii);
UPDATE_D(dict,0,dv,ii,in);
} while (++ii < ip);
DVAL_NEXT(dv,ii);
assert(ii == ip);
DVAL_ASSERT(dv,ip);
#elif (CLEVEL >= 3)
SI DI DI XI
#elif (CLEVEL >= 2)
SI DI XI
#else
XI
#endif
}
else
{
/* we've found a long match - see how far we can still go */
const lzo_bytep end;
lzo_uint m_len;
assert(ip <= in_end);
assert(ii == ip - MIN_MATCH_LONG);
if (pd(in_end,ip) <= (MAX_MATCH_LONG - MIN_MATCH_LONG))
end = in_end;
else
{
end = ip + (MAX_MATCH_LONG - MIN_MATCH_LONG);
assert(end < in_end);
}
while (ip < end && *m_pos == *ip)
m_pos++, ip++;
assert(ip <= in_end);
/* 2a) compute match parameters */
m_len = pd(ip, ii);
assert(m_len >= MIN_MATCH_LONG);
assert(m_len <= MAX_MATCH_LONG);
assert(m_off >= MIN_OFFSET);
assert(m_off <= MAX_OFFSET);
assert(ii-m_off == m_pos_sav);
assert(lzo_memcmp(m_pos_sav,ii,m_len) == 0);
assert(pd(ip,m_pos) == m_off);
m_off -= MIN_OFFSET;
/* 2b) code the long match */
/* code long match flag + low offset bits */
*op++ = LZO_BYTE(((MSIZE - 1) << OBITS) | (m_off & OMASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> OBITS);
/* code match len */
*op++ = LZO_BYTE(m_len - MIN_MATCH_LONG);
#if (LZO_COLLECT_STATS)
lzo_stats->long_matches++;
lzo_stats->long_match[m_len]++;
#endif
/* 2c) Insert phrases (beginning with ii+1) into the dictionary. */
#if (CLEVEL == 9)
/* Insert the whole match (ii+1)..(ip-1) into dictionary. */
/* This is not recommended because it is slow. */
++ii;
do {
DVAL_NEXT(dv,ii);
UPDATE_D(dict,0,dv,ii,in);
} while (++ii < ip);
DVAL_NEXT(dv,ii);
assert(ii == ip);
DVAL_ASSERT(dv,ip);
#elif (CLEVEL >= 8)
SI DI DI DI DI DI DI DI DI XI
#elif (CLEVEL >= 7)
SI DI DI DI DI DI DI DI XI
#elif (CLEVEL >= 6)
SI DI DI DI DI DI DI XI
#elif (CLEVEL >= 5)
SI DI DI DI DI XI
#elif (CLEVEL >= 4)
SI DI DI DI XI
#elif (CLEVEL >= 3)
SI DI DI XI
#elif (CLEVEL >= 2)
SI DI XI
#else
XI
#endif
}
/* ii now points to the start of the next literal run */
assert(ii == ip);
}
} while (ip < ip_end);
assert(ip <= in_end);
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
/* return -1 if op == out to indicate that we
* couldn't compress and didn't copy anything.
*/
if (op == out)
{
*out_len = 0;
return LZO_E_NOT_COMPRESSIBLE;
}
#endif
/* store the final literal run */
if (pd(in_end+DVAL_LEN,ii) > 0)
op = store_run(op,ii,pd(in_end+DVAL_LEN,ii));
*out_len = pd(op, out);
return 0; /* compression went ok */
}
/***********************************************************************
// LZO1A compress public entry point.
************************************************************************/
LZO_PUBLIC(int)
lzo1a_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
int r = LZO_E_OK;
#if (LZO_COLLECT_STATS)
lzo_memset(lzo_stats,0,sizeof(*lzo_stats));
lzo_stats->rbits = RBITS;
lzo_stats->clevel = CLEVEL;
lzo_stats->dbits = DBITS;
lzo_stats->lbits = LBITS;
lzo_stats->min_match_short = MIN_MATCH_SHORT;
lzo_stats->max_match_short = MAX_MATCH_SHORT;
lzo_stats->min_match_long = MIN_MATCH_LONG;
lzo_stats->max_match_long = MAX_MATCH_LONG;
lzo_stats->min_offset = MIN_OFFSET;
lzo_stats->max_offset = MAX_OFFSET;
lzo_stats->r0min = R0MIN;
lzo_stats->r0fast = R0FAST;
lzo_stats->r0max = R0MAX;
lzo_stats->in_len = in_len;
#endif
/* don't try to compress a block that's too short */
if (in_len == 0)
*out_len = 0;
else if (in_len <= MIN_MATCH_LONG + DVAL_LEN + 1)
{
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
r = LZO_E_NOT_COMPRESSIBLE;
#else
*out_len = pd(store_run(out,in,in_len), out);
#endif
}
else
r = do_compress(in,in_len,out,out_len,wrkmem);
#if (LZO_COLLECT_STATS)
lzo_stats->short_matches -= lzo_stats->r1_matches;
lzo_stats->short_match[MIN_MATCH] -= lzo_stats->r1_matches;
lzo_stats->out_len = *out_len;
#endif
return r;
}
/* vim:set ts=4 sw=4 et: */

116
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/* lzo1a_99.c -- implementation of the LZO1A-99 algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 99
#define DDBITS 3
#define CLEVEL 9
/***********************************************************************
//
************************************************************************/
#define LZO_NEED_DICT_H 1
#include "config1a.h"
/***********************************************************************
// compression internal entry point.
************************************************************************/
static int
_lzo1a_do_compress ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_compress_t func )
{
int r;
/* don't try to compress a block that's too short */
if (in_len == 0)
{
*out_len = 0;
r = LZO_E_OK;
}
else if (in_len <= MIN_LOOKAHEAD + 1)
{
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
*out_len = 0;
r = LZO_E_NOT_COMPRESSIBLE;
#else
*out_len = pd(STORE_RUN(out,in,in_len), out);
r = (*out_len > in_len) ? LZO_E_OK : LZO_E_ERROR;
#endif
}
else
r = func(in,in_len,out,out_len,wrkmem);
return r;
}
/***********************************************************************
//
************************************************************************/
#if !defined(COMPRESS_ID)
#define COMPRESS_ID _LZO_ECONCAT2(DD_BITS,CLEVEL)
#endif
#define LZO_CODE_MATCH_INCLUDE_FILE "lzo1a_cm.ch"
#include "lzo1b_c.ch"
/***********************************************************************
//
************************************************************************/
#define LZO_COMPRESS \
LZO_PP_ECONCAT3(lzo1a_,COMPRESS_ID,_compress)
#define LZO_COMPRESS_FUNC \
LZO_PP_ECONCAT3(_lzo1a_,COMPRESS_ID,_compress_func)
/***********************************************************************
//
************************************************************************/
LZO_PUBLIC(int)
LZO_COMPRESS ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
return _lzo1a_do_compress(in,in_len,out,out_len,wrkmem,do_compress);
}
/* vim:set ts=4 sw=4 et: */

228
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/* lzo1a_cm.ch -- implementation of the LZO1A compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
/***********************************************************************
// code the match in LZO1 compatible format
************************************************************************/
#define THRESHOLD (M2_MIN_LEN - 1)
#define MSIZE LZO_SIZE(M2L_BITS)
/***********************************************************************
//
************************************************************************/
#if (DD_BITS == 0)
/* we already matched M2_MIN_LEN bytes,
* m_pos also already advanced M2_MIN_LEN bytes */
ip += M2_MIN_LEN;
assert(m_pos < ip);
/* try to match another M2_MAX_LEN + 1 - M2_MIN_LEN bytes
* to see if we get more than a M2 match */
#define M2_OR_M3 (MATCH_M2)
#else /* (DD_BITS == 0) */
/* we already matched m_len bytes */
assert(m_len >= M2_MIN_LEN);
ip += m_len;
assert(ip <= in_end);
#define M2_OR_M3 (m_len <= M2_MAX_LEN)
#endif /* (DD_BITS == 0) */
if (M2_OR_M3)
{
/* we've found a short match */
assert(ip <= in_end);
/* 2a) compute match parameters */
#if (DD_BITS == 0)
assert(pd(ip,m_pos) == m_off);
--ip; /* ran one too far, point back to non-match */
m_len = ip - ii;
#endif
assert(m_len >= M2_MIN_LEN);
assert(m_len <= M2_MAX_LEN);
assert(m_off >= M2_MIN_OFFSET);
assert(m_off <= M2_MAX_OFFSET);
assert(ii-m_off == m_pos_sav);
assert(lzo_memcmp(m_pos_sav,ii,m_len) == 0);
/* 2b) code the match */
m_off -= M2_MIN_OFFSET;
/* code short match len + low offset bits */
*op++ = LZO_BYTE(((m_len - THRESHOLD) << M2O_BITS) |
(m_off & M2O_MASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M2O_BITS);
if (ip >= ip_end)
{
ii = ip;
break;
}
/* 2c) Insert phrases (beginning with ii+1) into the dictionary. */
#if (CLEVEL == 9) || (CLEVEL >= 7 && M2L_BITS <= 4) || (CLEVEL >= 5 && M2L_BITS <= 3)
/* Insert the whole match (ii+1)..(ip-1) into dictionary. */
++ii;
do {
DVAL_NEXT(dv,ii);
#if 0
UPDATE_D(dict,drun,dv,ii,in);
#else
dict[ DINDEX(dv,ii) ] = DENTRY(ii,in);
#endif
MI
} while (++ii < ip);
DVAL_NEXT(dv,ii);
assert(ii == ip);
DVAL_ASSERT(dv,ip);
#elif (CLEVEL >= 3)
SI DI DI XI
#elif (CLEVEL >= 2)
SI DI XI
#else
XI
#endif
}
else
{
/* we've found a long match - see how far we can still go */
const lzo_bytep end;
assert(ip <= in_end);
assert(ii == ip - (M2_MAX_LEN + 1));
assert(lzo_memcmp(m_pos_sav,ii,(lzo_uint)(ip-ii)) == 0);
#if (DD_BITS > 0)
assert(m_len == (lzo_uint)(ip-ii));
m_pos = ip - m_off;
assert(m_pos == m_pos_sav + m_len);
#endif
if (pd(in_end,ip) <= (M3_MAX_LEN - M3_MIN_LEN))
end = in_end;
else
{
end = ip + (M3_MAX_LEN - M3_MIN_LEN);
assert(end < in_end);
}
while (ip < end && *m_pos == *ip)
m_pos++, ip++;
assert(ip <= in_end);
/* 2a) compute match parameters */
m_len = pd(ip, ii);
assert(m_len >= M3_MIN_LEN);
assert(m_len <= M3_MAX_LEN);
assert(m_off >= M3_MIN_OFFSET);
assert(m_off <= M3_MAX_OFFSET);
assert(ii-m_off == m_pos_sav);
assert(lzo_memcmp(m_pos_sav,ii,m_len) == 0);
assert(pd(ip,m_pos) == m_off);
/* 2b) code the match */
m_off -= M3_MIN_OFFSET - M3_EOF_OFFSET;
/* code long match flag + low offset bits */
*op++ = LZO_BYTE(((MSIZE - 1) << M3O_BITS) | (m_off & M3O_MASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M3O_BITS);
/* code match len */
*op++ = LZO_BYTE(m_len - M3_MIN_LEN);
if (ip >= ip_end)
{
ii = ip;
break;
}
/* 2c) Insert phrases (beginning with ii+1) into the dictionary. */
#if (CLEVEL == 9)
/* Insert the whole match (ii+1)..(ip-1) into dictionary. */
/* This is not recommended because it can be slow. */
++ii;
do {
DVAL_NEXT(dv,ii);
#if 0
UPDATE_D(dict,drun,dv,ii,in);
#else
dict[ DINDEX(dv,ii) ] = DENTRY(ii,in);
#endif
MI
} while (++ii < ip);
DVAL_NEXT(dv,ii);
assert(ii == ip);
DVAL_ASSERT(dv,ip);
#elif (CLEVEL >= 8)
SI DI DI DI DI DI DI DI DI XI
#elif (CLEVEL >= 7)
SI DI DI DI DI DI DI DI XI
#elif (CLEVEL >= 6)
SI DI DI DI DI DI DI XI
#elif (CLEVEL >= 5)
SI DI DI DI DI XI
#elif (CLEVEL >= 4)
SI DI DI DI XI
#elif (CLEVEL >= 3)
SI DI DI XI
#elif (CLEVEL >= 2)
SI DI XI
#else
XI
#endif
}
/* ii now points to the start of the next literal run */
assert(ii == ip);
/* vim:set ts=4 sw=4 et: */

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/* lzo1a_cr.ch -- literal run handling for the the LZO1A algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the LZO package and is subject
to change.
*/
#ifndef __LZO1A_CR_H
#define __LZO1A_CR_H 1
/***********************************************************************
// code a literal run
************************************************************************/
static lzo_bytep
store_run(lzo_bytep const oo, const lzo_bytep const ii, lzo_uint r_len)
{
lzo_bytep op;
const lzo_bytep ip;
lzo_uint t;
op = oo;
ip = ii;
assert(r_len > 0);
/* code a long R0 run */
if (r_len >= 512)
{
unsigned r_bits = 6; /* 256 << 6 == 16384 */
lzo_uint tt = 32768u;
while (r_len >= (t = tt))
{
r_len -= t;
*op++ = 0; *op++ = (R0MAX - R0MIN);
MEMCPY8_DS(op, ip, t);
LZO_STATS(lzo_stats->r0long_runs++);
}
tt >>= 1;
do {
if (r_len >= (t = tt))
{
r_len -= t;
*op++ = 0; *op++ = LZO_BYTE((R0FAST - R0MIN) + r_bits);
MEMCPY8_DS(op, ip, t);
LZO_STATS(lzo_stats->r0long_runs++);
}
tt >>= 1;
} while (--r_bits > 0);
}
assert(r_len < 512);
while (r_len >= (t = R0FAST))
{
r_len -= t;
*op++ = 0; *op++ = (R0FAST - R0MIN);
MEMCPY8_DS(op, ip, t);
LZO_STATS(lzo_stats->r0fast_runs++);
}
t = r_len;
if (t >= R0MIN)
{
/* code a short R0 run */
*op++ = 0; *op++ = LZO_BYTE(t - R0MIN);
MEMCPY_DS(op, ip, t);
LZO_STATS(lzo_stats->r0short_runs++);
}
else if (t > 0)
{
/* code a short literal run */
LZO_STATS(lzo_stats->lit_runs++);
LZO_STATS(lzo_stats->lit_run[t]++);
*op++ = LZO_BYTE(t);
MEMCPY_DS(op, ip, t);
}
return op;
}
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1a_de.h -- definitions for the the LZO1A algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the LZO package and is subject
to change.
*/
#ifndef __LZO_DEFS_H
#define __LZO_DEFS_H 1
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/*
Format of the marker byte
76543210
--------
00000000 a long literal run ('R0' run) - there are short and long R0 runs
000rrrrr a short literal run with len r
mmmooooo a short match (len = 2+m, o = offset low bits)
111ooooo a long match (o = offset low bits)
*/
#define RSIZE (1 << RBITS)
#define RMASK (RSIZE - 1)
#define MBITS (8 - OBITS)
#define MSIZE (1 << MBITS)
#define MMASK (MSIZE - 1)
#define OBITS RBITS /* offset and run-length use same bits */
#define OSIZE (1 << OBITS)
#define OMASK (OSIZE - 1)
/* additional bits for coding the length in a long match */
#define LBITS 8
#define LSIZE (1 << LBITS)
#define LMASK (LSIZE - 1)
/***********************************************************************
// some macros to improve readability
************************************************************************/
/* Minimum len of a match */
#define MIN_MATCH 3
#define THRESHOLD (MIN_MATCH - 1)
/* Min-/Maximum len of a match coded in 2 bytes */
#define MIN_MATCH_SHORT (MIN_MATCH)
#define MAX_MATCH_SHORT (MIN_MATCH_SHORT + (MSIZE - 2) - 1)
/* why (MSIZE - 2) ? because 0 is used to mark runs,
* and MSIZE-1 is used to mark a long match */
/* Min-/Maximum len of a match coded in 3 bytes */
#define MIN_MATCH_LONG (MAX_MATCH_SHORT + 1)
#define MAX_MATCH_LONG (MIN_MATCH_LONG + LSIZE - 1)
/* Min-/Maximum offset of a match */
#define MIN_OFFSET 1
#define MAX_OFFSET (1 << (CHAR_BIT + OBITS))
/* R0 literal run (a long run) */
#define R0MIN (RSIZE) /* Minimum len of R0 run of literals */
#define R0MAX (R0MIN + 255) /* Maximum len of R0 run of literals */
#define R0FAST (R0MAX & ~7) /* R0MAX aligned to 8 byte boundary */
#if (R0MAX - R0FAST != 7) || ((R0FAST & 7) != 0)
# error "something went wrong"
#endif
/* 7 special codes from R0FAST+1 .. R0MAX
* these codes mean long R0 runs with lengths
* 512, 1024, 2048, 4096, 8192, 16384, 32768 */
/*
RBITS | MBITS MIN THR. MSIZE MAXS MINL MAXL MAXO R0MAX R0FAST
======+===============================================================
3 | 5 3 2 32 32 33 288 2048 263 256
4 | 4 3 2 16 16 17 272 4096 271 264
5 | 3 3 2 8 8 9 264 8192 287 280
*/
/***********************************************************************
//
************************************************************************/
#define DBITS 13
#include "lzo_dict.h"
#define DVAL_LEN DVAL_LOOKAHEAD
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1b_1.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 1
#define DDBITS 0
#define CLEVEL 1
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1b_2.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 2
#define DDBITS 0
#define CLEVEL 2
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

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extern/lzo/src/lzo1b_3.c vendored Normal file
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/* lzo1b_3.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 3
#define DDBITS 0
#define CLEVEL 3
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1b_4.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 4
#define DDBITS 1
#define CLEVEL 2
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

35
extern/lzo/src/lzo1b_5.c vendored Normal file
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/* lzo1b_5.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 5
#define DDBITS 1
#define CLEVEL 3
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

35
extern/lzo/src/lzo1b_6.c vendored Normal file
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/* lzo1b_6.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 6
#define DDBITS 1
#define CLEVEL 5
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

35
extern/lzo/src/lzo1b_7.c vendored Normal file
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/* lzo1b_7.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 7
#define DDBITS 2
#define CLEVEL 3
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

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extern/lzo/src/lzo1b_8.c vendored Normal file
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/* lzo1b_8.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 8
#define DDBITS 2
#define CLEVEL 8
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

35
extern/lzo/src/lzo1b_9.c vendored Normal file
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/* lzo1b_9.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 9
#define DDBITS 2
#define CLEVEL 9
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

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extern/lzo/src/lzo1b_99.c vendored Normal file
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/* lzo1b_99.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 99
#define DDBITS 3
#define CLEVEL 9
#define D_BITS 16
#define MATCH_IP_END in_end
#include "compr1b.h"
/* vim:set ts=4 sw=4 et: */

350
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/* lzo1b_9x.c -- implementation of the LZO1B-999 compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1b.h"
/***********************************************************************
//
************************************************************************/
#define SWD_N 0xffffL /* size of ring buffer */
#define SWD_THRESHOLD 2 /* lower limit for match length */
#define SWD_F 2048 /* upper limit for match length */
#define LZO1B 1
#define LZO_COMPRESS_T lzo1b_999_t
#define lzo_swd_t lzo1b_999_swd_t
#include "lzo_mchw.ch"
/***********************************************************************
//
************************************************************************/
static lzo_bytep
code_match ( LZO_COMPRESS_T *c, lzo_bytep op, lzo_uint m_len, lzo_uint m_off )
{
if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET)
{
assert(m_len >= M2_MIN_LEN);
assert(m_off >= M2_MIN_OFFSET);
m_off -= M2_MIN_OFFSET;
/* code match len + low offset bits */
*op++ = LZO_BYTE(((m_len - (M2_MIN_LEN - 2)) << M2O_BITS) |
(m_off & M2O_MASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M2O_BITS);
c->m2_m++;
}
else
{
assert(m_len >= M3_MIN_LEN);
assert(m_off <= M3_MAX_OFFSET);
m_off -= M3_MIN_OFFSET - M3_EOF_OFFSET;
/* code match len */
if (m_len <= M3_MAX_LEN)
*op++ = LZO_BYTE(M3_MARKER | (m_len - (M3_MIN_LEN - 1)));
else
{
assert(m_len >= M4_MIN_LEN);
/* code M4 match len flag */
*op++ = M4_MARKER;
/* code match len */
m_len -= M4_MIN_LEN - 1;
while (m_len > 255)
{
m_len -= 255;
*op++ = 0;
}
assert(m_len > 0);
*op++ = LZO_BYTE(m_len);
}
/* code low offset bits */
*op++ = LZO_BYTE(m_off & M3O_MASK);
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M3O_BITS);
c->r1_m_len = 0;
c->m3_m++;
}
return op;
}
/***********************************************************************
// this is a public function, but there is no prototype in a header file
************************************************************************/
LZO_EXTERN(int)
lzo1b_999_compress_callback ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_callback_p cb,
lzo_uint max_chain );
LZO_PUBLIC(int)
lzo1b_999_compress_callback ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_callback_p cb,
lzo_uint max_chain )
{
lzo_bytep op;
const lzo_bytep ii;
lzo_uint lit;
lzo_uint m_len, m_off;
LZO_COMPRESS_T cc;
LZO_COMPRESS_T * const c = &cc;
lzo_swd_p const swd = (lzo_swd_p) wrkmem;
int r;
/* sanity check */
LZO_COMPILE_TIME_ASSERT(LZO1B_999_MEM_COMPRESS >= SIZEOF_LZO_SWD_T)
c->init = 0;
c->ip = c->in = in;
c->in_end = in + in_len;
c->cb = cb;
c->r1_r = c->m3_r = c->m2_m = c->m3_m = 0;
op = out;
ii = c->ip; /* point to start of literal run */
lit = 0;
c->r1_m_len = 0;
r = init_match(c,swd,NULL,0,0);
if (r != 0)
return r;
if (max_chain > 0)
swd->max_chain = max_chain;
r = find_match(c,swd,0,0);
if (r != 0)
return r;
while (c->look > 0)
{
int lazy_match_min_gain = -1;
lzo_uint ahead = 0;
m_len = c->m_len;
m_off = c->m_off;
#if 0
printf("%5ld: %5d len:%3d off:%5d\n", (c->ip-c->look)-in, c->look,
m_len, m_off);
#endif
assert(c->ip - c->look >= in);
if (lit == 0)
ii = c->ip - c->look;
assert(ii + lit == c->ip - c->look);
assert(swd->b_char == *(c->ip - c->look));
if ((m_len < M2_MIN_LEN) ||
(m_len < M3_MIN_LEN && m_off > M2_MAX_OFFSET))
{
m_len = 0;
}
else
{
assert(c->ip - c->look - m_off >= in);
assert(c->ip - c->look - m_off + m_len < c->ip);
assert(lzo_memcmp(c->ip - c->look, c->ip - c->look - m_off,
m_len) == 0);
if (lit > 0)
{
/* we have a current literal run: do not try a lazy match,
if the literal could be coded into a r1 match */
if (lit == 1 && c->r1_m_len == M2_MIN_LEN)
lazy_match_min_gain = -1;
else
lazy_match_min_gain = 1;
#if (M2_MIN_LEN == 2)
if (m_len == 2)
{
/* don't code a match of len 2 if we have to
code a literal run. Code a literal instead. */
m_len = 0;
}
#endif
#if (M2_MIN_LEN == M3_MIN_LEN)
if (m_len == M2_MIN_LEN && m_off > M2_MAX_OFFSET)
{
/* don't code a M3 match of len 3 if we have to
code a literal run. Code a literal instead. */
m_len = 0;
}
#endif
}
else
{
/* no current literal run: only try a lazy match,
if the literal could be coded into a r1 match */
if (c->r1_m_len == M2_MIN_LEN)
lazy_match_min_gain = 0;
else
lazy_match_min_gain = -1;
}
}
/* try a lazy match */
if (m_len == 0)
lazy_match_min_gain = -1;
if (lazy_match_min_gain >= 0 && c->look > m_len)
{
assert(m_len > 0);
r = find_match(c,swd,1,0);
assert(r == 0); LZO_UNUSED(r);
assert(c->look > 0);
if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET &&
c->m_off > M2_MAX_OFFSET)
lazy_match_min_gain += 1;
if (c->m_len >= m_len + lazy_match_min_gain)
{
c->lazy++;
#if !defined(NDEBUG)
m_len = c->m_len;
m_off = c->m_off;
assert(lzo_memcmp(c->ip - c->look, c->ip - c->look - m_off,
m_len) == 0);
#endif
lit++;
assert(ii + lit == c->ip - c->look);
continue;
}
else
{
ahead = 1;
assert(ii + lit + 1 == c->ip - c->look);
}
assert(m_len > 0);
}
assert(ii + lit + ahead == c->ip - c->look);
if (m_len == 0)
{
/* a literal */
lit++;
r = find_match(c,swd,1,0);
assert(r == 0); LZO_UNUSED(r);
}
else
{
/* 1 - store run */
if (lit > 0)
{
/* code current literal run */
if (lit == 1 && c->r1_m_len == M2_MIN_LEN)
{
/* Code a context sensitive R1 match. */
assert((op[-2] >> M2O_BITS) == (M2_MARKER >> M2O_BITS));
op[-2] &= M2O_MASK;
assert((op[-2] >> M2O_BITS) == 0);
/* copy 1 literal */
*op++ = *ii++;
assert(ii + ahead == c->ip - c->look);
c->r1_r++;
}
else
{
op = STORE_RUN(op,ii,lit);
}
if (lit < R0FAST)
c->r1_m_len = m_len;
else
c->r1_m_len = 0;
lit = 0;
}
else
c->r1_m_len = 0;
/* 2 - code match */
op = code_match(c,op,m_len,m_off);
r = find_match(c,swd,m_len,1+ahead);
assert(r == 0); LZO_UNUSED(r);
}
c->codesize = pd(op, out);
}
/* store final run */
if (lit > 0)
op = STORE_RUN(op,ii,lit);
#if defined(LZO_EOF_CODE)
*op++ = M3_MARKER | 1;
*op++ = 0;
*op++ = 0;
#endif
c->codesize = pd(op, out);
assert(c->textsize == in_len);
*out_len = pd(op, out);
if (c->cb && c->cb->nprogress)
(*c->cb->nprogress)(c->cb, c->textsize, c->codesize, 0);
#if 0
printf("%ld %ld -> %ld: %ld %ld %ld %ld %ld\n",
(long) c->textsize, (long)in_len, (long) c->codesize,
c->r1_r, c->m3_r, c->m2_m, c->m3_m, c->lazy);
#endif
return LZO_E_OK;
}
/***********************************************************************
//
************************************************************************/
LZO_PUBLIC(int)
lzo1b_999_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
return lzo1b_999_compress_callback(in,in_len,out,out_len,wrkmem,
(lzo_callback_p) 0, 0);
}
/* vim:set ts=4 sw=4 et: */

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/* lzo1b_c.ch -- implementation of the LZO1B compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/***********************************************************************
//
************************************************************************/
#if !defined(LZO_HAVE_R1) && !defined(LZO_NO_R1)
# define LZO_HAVE_R1 1
#endif
#if !defined(LZO_HAVE_M3) && !defined(LZO_NO_M3)
# if (M3O_BITS < 8)
# define LZO_HAVE_M3 1
# endif
#endif
#define MI /*empty*/
#define SI MI
#if (DD_BITS > 0)
#define DI ++ii; DVAL_NEXT(dv,ii); UPDATE_D(dict,drun,dv,ii,in); MI
#define XI assert(ii < ip); ii = ip; DVAL_FIRST(dv,(ip));
#else
#define DI ++ii; DINDEX1(dindex,ii); UPDATE_I(dict,0,dindex,ii,in); MI
#define XI assert(ii < ip); ii = ip;
#endif
/***********************************************************************
// compress a block of data.
//
// I really apologize for this spaghetti code.
************************************************************************/
#ifdef __cplusplus
extern "C" {
#endif
LZO_PRIVATE(int)
do_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
const lzo_bytep ip;
#if (DD_BITS > 0)
#if defined(__LZO_HASH_INCREMENTAL)
lzo_xint dv;
#endif
unsigned drun = 0;
#endif
lzo_bytep op;
const lzo_bytep const in_end = in + in_len;
const lzo_bytep const ip_end = in + in_len - MIN_LOOKAHEAD;
const lzo_bytep ii;
#if defined(LZO_HAVE_R1)
const lzo_bytep r1 = ip_end; /* pointer for R1 match (none yet) */
#endif
#if defined(LZO_HAVE_M3)
lzo_bytep m3 = out + 1; /* pointer after last m3/m4 match */
#endif
lzo_dict_p const dict = (lzo_dict_p) wrkmem;
#if (LZO_COLLECT_STATS)
lzo_stats->r_bits = R_BITS;
lzo_stats->m3o_bits = M3O_BITS;
lzo_stats->dd_bits = DD_BITS;
lzo_stats->clevel = CLEVEL;
lzo_stats->d_bits = D_BITS;
lzo_stats->min_lookahead = MIN_LOOKAHEAD;
lzo_stats->max_lookbehind = MAX_LOOKBEHIND;
lzo_stats->compress_id = LZO_PP_MACRO_EXPAND(COMPRESS_ID);
#endif
/* init dictionary */
#if (LZO_DETERMINISTIC)
BZERO8_PTR(wrkmem,sizeof(lzo_dict_t),D_SIZE);
#endif
op = out;
ip = in;
ii = ip; /* point to start of current literal run */
#if (DD_BITS > 0)
DVAL_FIRST(dv,ip);
UPDATE_D(dict,drun,dv,ip,in);
ip++;
DVAL_NEXT(dv,ip);
#else
ip++;
#endif
assert(ip < ip_end);
for (;;)
{
const lzo_bytep m_pos;
#if !defined(NDEBUG)
const lzo_bytep m_pos_sav = NULL;
#endif
LZO_DEFINE_UNINITIALIZED_VAR(lzo_uint, m_off, 0);
#if (DD_BITS == 0)
lzo_uint dindex;
#endif
lzo_uint m_len;
/***********************************************************************
// search for a match
************************************************************************/
#if !defined(LZO_SEARCH_MATCH_INCLUDE_FILE)
# define LZO_SEARCH_MATCH_INCLUDE_FILE "lzo1b_sm.ch"
#endif
#include LZO_SEARCH_MATCH_INCLUDE_FILE
#if !defined(LZO_TEST_MATCH_INCLUDE_FILE)
# define LZO_TEST_MATCH_INCLUDE_FILE "lzo1b_tm.ch"
#endif
#include LZO_TEST_MATCH_INCLUDE_FILE
/***********************************************************************
// found a literal
************************************************************************/
/* a literal */
literal:
#if (DD_BITS == 0)
UPDATE_I(dict,0,dindex,ip,in);
#endif
if (++ip >= ip_end)
break;
#if (DD_BITS > 0)
DVAL_NEXT(dv,ip);
#endif
continue;
/***********************************************************************
// found a match
************************************************************************/
match:
#if (DD_BITS == 0)
UPDATE_I(dict,0,dindex,ip,in);
#endif
/* we have found a match of at least M2_MIN_LEN */
#if !defined(LZO_CODE_RUN_INCLUDE_FILE)
# define LZO_CODE_RUN_INCLUDE_FILE "lzo1b_cr.ch"
#endif
#include LZO_CODE_RUN_INCLUDE_FILE
/* ii now points to the start of the current match */
assert(ii == ip);
/***********************************************************************
// code the match
************************************************************************/
#if !defined(LZO_CODE_MATCH_INCLUDE_FILE)
# define LZO_CODE_MATCH_INCLUDE_FILE "lzo1b_cm.ch"
#endif
#include LZO_CODE_MATCH_INCLUDE_FILE
/* ii now points to the start of the next literal run */
assert(ii == ip);
}
/***********************************************************************
// end of block
************************************************************************/
assert(ip <= in_end);
#if (LZO_COLLECT_STATS)
{
lzo_uint i;
const lzo_bytep p;
for (i = 0; i < D_SIZE; i++)
{
p = dict[i];
if (BOUNDS_CHECKING_OFF_IN_EXPR(p == NULL || p < in || p > in_end))
lzo_stats->unused_dict_entries++;
}
lzo_stats->unused_dict_entries_percent =
100.0 * lzo_stats->unused_dict_entries / D_SIZE;
}
#endif
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
/* return if op == out to indicate that we
* couldn't compress and didn't copy anything.
*/
if (op == out)
{
*out_len = 0;
return LZO_E_NOT_COMPRESSIBLE;
}
#endif
/* store the final literal run */
if (pd(in_end,ii) > 0)
{
lzo_uint t = pd(in_end,ii);
op = STORE_RUN(op,ii,t);
}
*out_len = pd(op, out);
return LZO_E_OK; /* compression went ok */
}
#ifdef __cplusplus
} /* extern "C" */
#endif
/* vim:set ts=4 sw=4 et: */

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/* lzo1b_cc.c -- LZO1B compression internal entry point
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define LZO_NEED_DICT_H 1
#include "config1b.h"
/***********************************************************************
// compression internal entry point.
************************************************************************/
LZO_LOCAL_IMPL(int)
_lzo1b_do_compress ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_compress_t func )
{
int r;
#if defined(LZO_TEST_COMPRESS_OVERRUN)
lzo_uint avail_out = *out_len;
#endif
#if (LZO_COLLECT_STATS)
_lzo1b_stats_init(lzo_stats);
lzo_stats->in_len = in_len;
#endif
/* don't try to compress a block that's too short */
if (in_len == 0)
{
*out_len = 0;
r = LZO_E_OK;
}
else if (in_len <= MIN_LOOKAHEAD + 1)
{
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
*out_len = 0;
r = LZO_E_NOT_COMPRESSIBLE;
#else
*out_len = pd(STORE_RUN(out,in,in_len), out);
r = (*out_len > in_len) ? LZO_E_OK : LZO_E_ERROR;
#endif
}
else
r = func(in,in_len,out,out_len,wrkmem);
#if defined(LZO_EOF_CODE)
#if defined(LZO_TEST_COMPRESS_OVERRUN)
if (r == LZO_E_OK && avail_out - *out_len < 3)
r = LZO_E_COMPRESS_OVERRUN;
#endif
if (r == LZO_E_OK)
{
lzo_bytep op = out + *out_len;
op[0] = M3_MARKER | 1;
op[1] = 0;
op[2] = 0;
*out_len += 3;
}
#endif
#if (LZO_COLLECT_STATS)
lzo_stats->out_len = *out_len;
lzo_stats->match_bytes =
1 * lzo_stats->m1_matches + 2 * lzo_stats->m2_matches +
3 * lzo_stats->m3_matches + 4 * lzo_stats->m4_matches;
_lzo1b_stats_calc(lzo_stats);
#endif
return r;
}
/***********************************************************************
// note: this is not thread safe, but as it is used for finetuning only
// we don't care
************************************************************************/
#undef lzo_stats
/* lzo_stats_t is still defined */
#if (LZO_COLLECT_STATS)
static lzo_stats_t lzo_statistics;
lzo_stats_t * const lzo1b_stats = &lzo_statistics;
void _lzo1b_stats_init(lzo_stats_t *lzo_stats)
{
lzo_memset(lzo_stats,0,sizeof(*lzo_stats));
}
void _lzo1b_stats_calc(lzo_stats_t *lzo_stats)
{
lzo_stats->matches =
lzo_stats->m1_matches + lzo_stats->m2_matches +
lzo_stats->m3_matches + lzo_stats->m4_matches;
lzo_stats->literal_overhead = lzo_stats->lit_runs +
2 * (lzo_stats->r0short_runs + lzo_stats->r0fast_runs +
lzo_stats->r0long_runs);
lzo_stats->literal_bytes = lzo_stats->literals +
lzo_stats->literal_overhead;
#if 0
assert(lzo_stats->match_bytes + lzo_stats->literal_bytes ==
lzo_stats->out_len);
#endif
lzo_stats->m2_matches -= lzo_stats->r1_matches;
lzo_stats->m2_match[M2_MIN_LEN] -= lzo_stats->r1_matches;
if (lzo_stats->literals > 0)
lzo_stats->literal_overhead_percent =
100.0 * lzo_stats->literal_overhead / lzo_stats->literals;
}
#endif
/* vim:set ts=4 sw=4 et: */

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/* lzo1b_cc.h -- definitions for the the LZO1B compression driver
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO1B_CC_H
#define __LZO1B_CC_H 1
/***********************************************************************
//
************************************************************************/
extern const lzo_compress_t _lzo1b_1_compress_func;
extern const lzo_compress_t _lzo1b_2_compress_func;
extern const lzo_compress_t _lzo1b_3_compress_func;
extern const lzo_compress_t _lzo1b_4_compress_func;
extern const lzo_compress_t _lzo1b_5_compress_func;
extern const lzo_compress_t _lzo1b_6_compress_func;
extern const lzo_compress_t _lzo1b_7_compress_func;
extern const lzo_compress_t _lzo1b_8_compress_func;
extern const lzo_compress_t _lzo1b_9_compress_func;
extern const lzo_compress_t _lzo1b_99_compress_func;
/***********************************************************************
//
************************************************************************/
LZO_LOCAL_DECL(lzo_bytep )
_lzo1b_store_run ( lzo_bytep const oo, const lzo_bytep const ii,
lzo_uint r_len);
#define STORE_RUN _lzo1b_store_run
LZO_LOCAL_DECL(int)
_lzo1b_do_compress ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_compress_t func );
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

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/* lzo1b_cm.ch -- implementation of the LZO1B compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
/***********************************************************************
// code the match
************************************************************************/
#if (DD_BITS == 0)
/* we already matched M2_MIN_LEN bytes,
* m_pos also already advanced M2_MIN_LEN bytes */
ip += M2_MIN_LEN;
assert(m_pos < ip);
/* try to match another M2_MAX_LEN + 1 - M2_MIN_LEN bytes
* to see if we get more than a M2 match */
#define M2_OR_M3 (MATCH_M2)
#else /* (DD_BITS == 0) */
/* we already matched m_len bytes */
assert(m_len >= M2_MIN_LEN);
ip += m_len;
assert(ip <= in_end);
#define M2_OR_M3 (m_len <= M2_MAX_LEN)
#endif /* (DD_BITS == 0) */
if (M2_OR_M3)
{
/* we've found a M2 or M3 match */
assert(ip <= in_end);
/* 2a) compute match parameters */
#if (DD_BITS == 0)
assert(pd(ip,m_pos) == m_off);
--ip; /* ran one too far, point back to non-match */
m_len = pd(ip, ii);
#endif
/* 2a2) verify match parameters */
assert(m_len >= M2_MIN_LEN);
assert(m_len <= M2_MAX_LEN);
assert(m_len <= M3_MAX_LEN);
assert(m_off >= M2_MIN_OFFSET);
assert(m_off >= M3_MIN_OFFSET);
assert(m_off <= M3_MAX_OFFSET);
assert(ii-m_off == m_pos_sav);
assert(lzo_memcmp(m_pos_sav,ii,m_len) == 0);
/* 2b) code the match */
#if (_M2_MAX_OFFSET != _M3_MAX_OFFSET)
if (m_off <= M2_MAX_OFFSET)
{
#else
assert(m_off <= M2_MAX_OFFSET);
#endif
m_off -= M2_MIN_OFFSET;
/* code match len + low offset bits */
*op++ = LZO_BYTE(((m_len - (M2_MIN_LEN - 2)) << M2O_BITS) |
(m_off & M2O_MASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M2O_BITS);
LZO_STATS(lzo_stats->m2_matches++);
LZO_STATS(lzo_stats->m2_match[m_len]++);
#if (_M2_MAX_OFFSET != _M3_MAX_OFFSET)
}
else
{
#if defined(LZO_HAVE_R1)
#if (M3_MIN_LEN == M2_MIN_LEN)
r1 = ip_end; /* invalidate R1 pointer */
#endif
#endif
assert(m_len >= M3_MIN_LEN);
m_off -= M3_MIN_OFFSET - M3_EOF_OFFSET;
/* code match len */
*op++ = LZO_BYTE(M3_MARKER | (m_len - (M3_MIN_LEN - 1)));
/* code low offset bits */
*op++ = LZO_BYTE(m_off & M3O_MASK);
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M3O_BITS);
LZO_STATS(lzo_stats->m3_matches++);
LZO_STATS(lzo_stats->m3_match[m_len]++);
#if defined(LZO_HAVE_M3)
m3 = op; /* set M3 pointer */
#endif
}
#endif /* (_M2_MAX_OFFSET != _M3_MAX_OFFSET) */
if (ip >= ip_end)
{
ii = ip;
break;
}
/* 2c) Insert phrases (beginning with ii+1) into the dictionary. */
#if (CLEVEL == 9) || (CLEVEL >= 7 && M2L_BITS <= 4) || (CLEVEL >= 5 && M2L_BITS <= 3)
/* Insert the whole match (ii+1)..(ip-1) into dictionary. */
++ii;
do {
DVAL_NEXT(dv,ii);
#if 0
UPDATE_D(dict,drun,dv,ii,in);
#else
dict[ DINDEX(dv,ii) ] = DENTRY(ii,in);
#endif
MI
} while (++ii < ip);
DVAL_NEXT(dv,ii);
assert(ii == ip);
DVAL_ASSERT(dv,ip);
#elif (CLEVEL >= 3)
SI DI DI XI
#elif (CLEVEL >= 2)
SI DI XI
#else
XI
#endif
}
else
{
/* we've found a M3 or M4 match - see how far we can still go */
assert(ip <= in_end);
assert(lzo_memcmp(m_pos_sav,ii,(lzo_uint)(ip-ii)) == 0);
/* 2a) compute match parameters */
#if !defined(MATCH_IP_END)
assert(ii == ip - (M2_MAX_LEN + 1));
#if (DD_BITS > 0)
assert(m_len == (lzo_uint)(ip-ii));
m_pos = ip - m_off;
assert(m_pos == m_pos_sav + m_len);
#endif
{
const lzo_bytep end;
end = in_end;
while (ip < end && *m_pos == *ip)
m_pos++, ip++;
assert(ip <= in_end);
m_len = pd(ip, ii);
}
assert(pd(ip,m_pos) == m_off);
#endif
/* 2a2) verify match parameters */
assert(m_len >= M3_MIN_LEN);
assert(m_off >= M3_MIN_OFFSET);
assert(m_off >= M4_MIN_OFFSET);
assert(m_off <= M3_MAX_OFFSET);
assert(m_off <= M4_MAX_OFFSET);
assert(ii-m_off == m_pos_sav);
assert(lzo_memcmp(m_pos_sav,ii,m_len) == 0);
/* 2b) code the match */
if (m_len <= M3_MAX_LEN)
{
/* code match len */
*op++ = LZO_BYTE(M3_MARKER | (m_len - (M3_MIN_LEN - 1)));
LZO_STATS(lzo_stats->m3_matches++);
LZO_STATS(lzo_stats->m3_match[m_len]++);
}
else
{
assert(m_len >= M4_MIN_LEN);
/* code M4 match len flag */
*op++ = M4_MARKER;
/* code match len */
m_len -= M4_MIN_LEN - 1;
while (m_len > 255)
{
m_len -= 255;
*op++ = 0;
}
assert(m_len > 0);
*op++ = LZO_BYTE(m_len);
LZO_STATS(lzo_stats->m4_matches++);
}
m_off -= M3_MIN_OFFSET - M3_EOF_OFFSET;
/* code low offset bits */
*op++ = LZO_BYTE(m_off & M3O_MASK);
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M3O_BITS);
#if defined(LZO_HAVE_M3)
m3 = op; /* set M3 pointer */
#endif
if (ip >= ip_end)
{
ii = ip;
break;
}
/* 2c) Insert phrases (beginning with ii+1) into the dictionary. */
#if (CLEVEL == 9)
/* Insert the whole match (ii+1)..(ip-1) into dictionary. */
/* This is not recommended because it can be slow. */
++ii;
do {
DVAL_NEXT(dv,ii);
#if 0
UPDATE_D(dict,drun,dv,ii,in);
#else
dict[ DINDEX(dv,ii) ] = DENTRY(ii,in);
#endif
MI
} while (++ii < ip);
DVAL_NEXT(dv,ii);
assert(ii == ip);
DVAL_ASSERT(dv,ip);
#elif (CLEVEL >= 8)
SI DI DI DI DI DI DI DI DI XI
#elif (CLEVEL >= 7)
SI DI DI DI DI DI DI DI XI
#elif (CLEVEL >= 6)
SI DI DI DI DI DI DI XI
#elif (CLEVEL >= 5)
SI DI DI DI DI XI
#elif (CLEVEL >= 4)
SI DI DI DI XI
#elif (CLEVEL >= 3)
SI DI DI XI
#elif (CLEVEL >= 2)
SI DI XI
#else
XI
#endif
}
/* ii now points to the start of the next literal run */
assert(ii == ip);
/* vim:set ts=4 sw=4 et: */

112
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/* lzo1b_cr.ch -- implementation of the LZO1B compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
/***********************************************************************
// store the current literal run
************************************************************************/
assert(ip < ip_end);
if (pd(ip,ii) > 0)
{
lzo_uint t = pd(ip,ii);
#if defined(LZO_HAVE_R1)
if (ip == r1)
{
/* Code a context sensitive R1 match. */
LZO_STATS(lzo_stats->literals += t);
LZO_STATS(lzo_stats->r1_matches++);
assert(t == 1);
/* modify marker byte */
assert((op[-2] >> M2O_BITS) == (M2_MARKER >> M2O_BITS));
op[-2] &= M2O_MASK;
assert((op[-2] >> M2O_BITS) == 0);
/* copy 1 literal */
*op++ = *ii++;
r1 = ip + (M2_MIN_LEN + 1); /* set new R1 pointer */
}
else
#endif
if (t < R0MIN)
{
/* inline the copying of a short run */
LZO_STATS(lzo_stats->literals += t);
LZO_STATS(lzo_stats->lit_runs++);
LZO_STATS(lzo_stats->lit_run[t]++);
#if defined(LZO_HAVE_M3)
if (t < LZO_SIZE(8-M3O_BITS) && op == m3)
{
/* Code a very short literal run into the low offset bits
* of the previous M3/M4 match.
*/
LZO_STATS(lzo_stats->lit_runs_after_m3_match++);
LZO_STATS(lzo_stats->lit_run_after_m3_match[t]++);
assert((m3[-2] >> M3O_BITS) == 0);
m3[-2] = LZO_BYTE(m3[-2] | (t << M3O_BITS));
}
else
#endif
{
*op++ = LZO_BYTE(t);
}
MEMCPY_DS(op, ii, t);
#if defined(LZO_HAVE_R1)
r1 = ip + (M2_MIN_LEN + 1); /* set new R1 pointer */
#endif
}
else if (t < R0FAST)
{
/* inline the copying of a short R0 run */
LZO_STATS(lzo_stats->literals += t);
LZO_STATS(lzo_stats->r0short_runs++);
*op++ = 0; *op++ = LZO_BYTE(t - R0MIN);
MEMCPY_DS(op, ii, t);
#if defined(LZO_HAVE_R1)
r1 = ip + (M2_MIN_LEN + 1); /* set new R1 pointer */
#endif
}
else
{
op = STORE_RUN(op,ii,t);
ii = ip;
}
}
/* ii now points to the start of the current match */
assert(ii == ip);
/* vim:set ts=4 sw=4 et: */

268
extern/lzo/src/lzo1b_d.ch vendored Normal file
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/* lzo1b_d.ch -- implementation of the LZO1B decompression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo1_d.ch"
/***********************************************************************
// decompress a block of data.
************************************************************************/
LZO_PUBLIC(int)
DO_DECOMPRESS ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
lzo_bytep op;
const lzo_bytep ip;
lzo_uint t;
const lzo_bytep m_pos;
const lzo_bytep const ip_end = in + in_len;
#if defined(HAVE_ANY_OP)
lzo_bytep const op_end = out + *out_len;
#endif
LZO_UNUSED(wrkmem);
op = out;
ip = in;
while (TEST_IP_AND_TEST_OP)
{
t = *ip++; /* get marker */
if (t < R0MIN) /* a literal run */
{
if (t == 0) /* a R0 literal run */
{
NEED_IP(1);
t = *ip++;
if (t >= R0FAST - R0MIN) /* a long R0 run */
{
t -= R0FAST - R0MIN;
if (t == 0)
t = R0FAST;
else
{
#if 0
t = 256u << ((unsigned) t);
#else
/* help the optimizer */
lzo_uint tt = 256;
do tt <<= 1; while (--t > 0);
t = tt;
#endif
}
NEED_IP(t); NEED_OP(t);
#if 1 && (LZO_OPT_UNALIGNED32)
do {
UA_COPY4(op+0, ip+0);
UA_COPY4(op+4, ip+4);
op += 8; ip += 8;
t -= 8;
} while (t > 0);
#else
MEMCPY8_DS(op,ip,t);
#endif
continue;
}
t += R0MIN; /* a short R0 run */
}
NEED_IP(t); NEED_OP(t);
/* copy literal run */
#if 1 && (LZO_OPT_UNALIGNED32)
if (t >= 4)
{
do {
UA_COPY4(op, ip);
op += 4; ip += 4; t -= 4;
} while (t >= 4);
if (t > 0) do *op++ = *ip++; while (--t > 0);
}
else
#endif
{
#if (M3O_BITS < 7)
literal1:
#endif
do *op++ = *ip++; while (--t > 0);
}
#if (M3O_BITS == 7)
literal2:
#endif
/* after a literal a match must follow */
while (TEST_IP_AND_TEST_OP)
{
t = *ip++; /* get R1 marker */
if (t >= R0MIN)
goto match;
NEED_IP(2); NEED_OP(M2_MIN_LEN + 1);
/* R1 match - a M2_MIN_LEN match + 1 byte literal */
assert((t & M2O_MASK) == t);
m_pos = op - M2_MIN_OFFSET;
m_pos -= t | (((lzo_uint) *ip++) << M2O_BITS);
assert(m_pos >= out); assert(m_pos < op);
TEST_LB(m_pos);
COPY_M2;
*op++ = *ip++;
}
#if defined(HAVE_TEST_IP) || defined(HAVE_TEST_OP)
break;
#endif
}
match:
if (t >= M2_MARKER) /* a M2 match */
{
/* get match offset */
NEED_IP(1);
m_pos = op - M2_MIN_OFFSET;
m_pos -= (t & M2O_MASK) | (((lzo_uint) *ip++) << M2O_BITS);
assert(m_pos >= out); assert(m_pos < op);
TEST_LB(m_pos);
/* get match len */
t = (t >> M2O_BITS) - 1;
NEED_OP(t + M2_MIN_LEN - 1);
COPY_M2X;
MEMCPY_DS(op,m_pos,t);
}
else /* a M3 or M4 match */
{
/* get match len */
t &= M3L_MASK;
if (t == 0) /* a M4 match */
{
NEED_IP(1);
while (*ip == 0)
{
t += 255;
ip++;
TEST_OV(t);
NEED_IP(1);
}
t += (M4_MIN_LEN - M3_MIN_LEN) + *ip++;
}
/* get match offset */
NEED_IP(2);
m_pos = op - (M3_MIN_OFFSET - M3_EOF_OFFSET);
m_pos -= *ip++ & M3O_MASK;
m_pos -= (lzo_uint)(*ip++) << M3O_BITS;
#if defined(LZO_EOF_CODE)
if (m_pos == op)
goto eof_found;
#endif
/* copy match */
assert(m_pos >= out); assert(m_pos < op);
TEST_LB(m_pos); NEED_OP(t + M3_MIN_LEN - 1);
#if (LZO_OPT_UNALIGNED32)
if (t >= 2 * 4 - (M3_MIN_LEN - 1) && (op - m_pos) >= 4)
{
UA_COPY4(op, m_pos);
op += 4; m_pos += 4; t -= 4 - (M3_MIN_LEN - 1);
do {
UA_COPY4(op, m_pos);
op += 4; m_pos += 4; t -= 4;
} while (t >= 4);
if (t > 0) do *op++ = *m_pos++; while (--t > 0);
}
else
#endif
{
COPY_M3X;
MEMCPY_DS(op,m_pos,t);
}
#if (M3O_BITS < 7)
t = ip[-2] >> M3O_BITS;
if (t)
{
NEED_IP(t); NEED_OP(t);
goto literal1;
}
#elif (M3O_BITS == 7)
/* optimized version */
if (ip[-2] & (1 << M3O_BITS))
{
NEED_IP(1); NEED_OP(1);
*op++ = *ip++;
goto literal2;
}
#endif
}
}
#if defined(LZO_EOF_CODE)
#if defined(HAVE_TEST_IP) || defined(HAVE_TEST_OP)
/* no EOF code was found */
*out_len = pd(op, out);
return LZO_E_EOF_NOT_FOUND;
#endif
eof_found:
assert(t == 1);
#endif
*out_len = pd(op, out);
return (ip == ip_end ? LZO_E_OK :
(ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
#if defined(HAVE_NEED_IP)
input_overrun:
*out_len = pd(op, out);
return LZO_E_INPUT_OVERRUN;
#endif
#if defined(HAVE_NEED_OP)
output_overrun:
*out_len = pd(op, out);
return LZO_E_OUTPUT_OVERRUN;
#endif
#if defined(LZO_TEST_OVERRUN_LOOKBEHIND)
lookbehind_overrun:
*out_len = pd(op, out);
return LZO_E_LOOKBEHIND_OVERRUN;
#endif
}
/* vim:set ts=4 sw=4 et: */

36
extern/lzo/src/lzo1b_d1.c vendored Normal file
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@ -0,0 +1,36 @@
/* lzo1b_d1.c -- LZO1B decompression
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1b.h"
#undef LZO_TEST_OVERRUN
#define DO_DECOMPRESS lzo1b_decompress
#include "lzo1b_d.ch"
/* vim:set ts=4 sw=4 et: */

36
extern/lzo/src/lzo1b_d2.c vendored Normal file
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/* lzo1b_d2.c -- LZO1B decompression with overrun testing
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1b.h"
#define LZO_TEST_OVERRUN 1
#define DO_DECOMPRESS lzo1b_decompress_safe
#include "lzo1b_d.ch"
/* vim:set ts=4 sw=4 et: */

330
extern/lzo/src/lzo1b_de.h vendored Normal file
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/* lzo1b_de.h -- definitions for the the LZO1B/LZO1C algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO_DEFS_H
#define __LZO_DEFS_H 1
#ifdef __cplusplus
extern "C" {
#endif
/***********************************************************************
//
************************************************************************/
/*
Format of the marker byte
76543210
--------
00000000 R0 - a long literal run ('R0' run)
000rrrrr R - a short literal run with len r
00100000 M4 - a very long match
001mmmmm M3 - a long match (len = m+M3_MIN_LEN)
mmmooooo M2 - a short match (len = m+M2_MIN_LEN, o = offset low bits)
M1 is not used !
*/
#ifndef R_BITS
#define R_BITS (5)
#endif
#ifndef M1L_BITS
#define M1L_BITS (0)
#endif
#ifndef M2L_BITS
#define M2L_BITS (CHAR_BIT - M2O_BITS)
#endif
#ifndef M3L_BITS
#define M3L_BITS (R_BITS)
#endif
#ifndef M4L_BITS
#define M4L_BITS (CHAR_BIT)
#endif
#ifndef M1O_BITS
#define M1O_BITS (6)
#endif
#ifndef M2O_BITS
#define M2O_BITS (R_BITS)
#endif
#ifndef M3O_BITS
#define M3O_BITS (CHAR_BIT)
#endif
#ifndef M4O_BITS
#define M4O_BITS (M3O_BITS) /* must be the same */
#endif
#ifndef M1X_BITS
#define M1X_BITS (M1O_BITS)
#endif
#ifndef M2X_BITS
#define M2X_BITS (M2O_BITS + CHAR_BIT)
#endif
#ifndef M3X_BITS
#define M3X_BITS (M3O_BITS + CHAR_BIT)
#endif
#ifndef M4X_BITS
#define M4X_BITS M3X_BITS
#endif
#define __MIN_OFFSET(bits) 1
#define __MAX_OFFSET(bits) LZO_SIZE(bits)
#define M1_MIN_OFFSET __MIN_OFFSET(M1X_BITS)
#define M2_MIN_OFFSET __MIN_OFFSET(M2X_BITS)
#define M3_MIN_OFFSET __MIN_OFFSET(M3X_BITS)
#define M4_MIN_OFFSET M3_MIN_OFFSET
#if defined(LZO_EOF_CODE) && !defined(M3_EOF_OFFSET)
#define M3_EOF_OFFSET 1
#else
#define M3_EOF_OFFSET 0
#endif
#ifndef _M1_MAX_OFFSET
#define _M1_MAX_OFFSET __MAX_OFFSET(M1X_BITS)
#endif
#ifndef _M2_MAX_OFFSET
#define _M2_MAX_OFFSET __MAX_OFFSET(M2X_BITS)
#endif
#ifndef _M3_MAX_OFFSET
#define _M3_MAX_OFFSET (__MAX_OFFSET(M3X_BITS) - M3_EOF_OFFSET)
#endif
#ifndef _M4_MAX_OFFSET
#define _M4_MAX_OFFSET _M3_MAX_OFFSET
#endif
#ifndef _MAX_OFFSET
#define _MAX_OFFSET _M4_MAX_OFFSET
#endif
#if (M3_EOF_OFFSET > 0) && (_M2_MAX_OFFSET == _M3_MAX_OFFSET + M3_EOF_OFFSET)
# undef _M2_MAX_OFFSET
# define _M2_MAX_OFFSET _M3_MAX_OFFSET
#endif
#if (_M2_MAX_OFFSET > _M3_MAX_OFFSET)
# error
#endif
#define M1_MAX_OFFSET ((lzo_uint) _M1_MAX_OFFSET)
#define M2_MAX_OFFSET ((lzo_uint) _M2_MAX_OFFSET)
#define M3_MAX_OFFSET ((lzo_uint) _M3_MAX_OFFSET)
#define M4_MAX_OFFSET ((lzo_uint) _M4_MAX_OFFSET)
#define MAX_OFFSET ((lzo_uint) _MAX_OFFSET)
#ifndef M1_MIN_LEN
#define M1_MIN_LEN (2)
#endif
#ifndef M2_MIN_LEN
#define M2_MIN_LEN (3)
#endif
#ifndef M3_MIN_LEN
#if (M3X_BITS == M2X_BITS)
#define M3_MIN_LEN (M2_MAX_LEN + 1)
#else
#define M3_MIN_LEN (4)
#endif
#endif
#ifndef M4_MIN_LEN
#define M4_MIN_LEN (M3_MAX_LEN + 1)
#endif
#ifndef M1_MAX_LEN
#define M1_MAX_LEN (M1_MIN_LEN + LZO_SIZE(M1L_BITS) - 1)
#endif
#ifndef M2_MAX_LEN
#define M2_MAX_LEN (M2_MIN_LEN + LZO_SIZE(M2L_BITS) - 3)
#endif
#ifndef M3_MAX_LEN
#define M3_MAX_LEN (M3_MIN_LEN + LZO_SIZE(M3L_BITS) - 2)
#endif
#ifndef M4_MAX_LEN
#define M4_MAX_LEN (ULONG_MAX)
#endif
#define M1O_MASK LZO_MASK(M1O_BITS)
#define M1L_MASK LZO_MASK(M1L_BITS)
#define M2O_MASK LZO_MASK(M2O_BITS)
#define M2L_MASK LZO_MASK(M2L_BITS)
#define M3O_MASK LZO_MASK(M3O_BITS)
#define M3L_MASK LZO_MASK(M3L_BITS)
#define M4O_MASK LZO_MASK(M4O_BITS)
#define M4L_MASK LZO_MASK(M4L_BITS)
#define M1_MARKER (1 << M1O_BITS)
#define M2_MARKER (2 << M2O_BITS)
#define M3_MARKER (1 << M3L_BITS)
#define M4_MARKER M3_MARKER
/***********************************************************************
// R0 literal run (a long run)
************************************************************************/
#ifndef R0MIN
#define R0MIN (LZO_SIZE(R_BITS)) /* Minimum len of R0 run of literals */
#endif
#define R0MAX (R0MIN + 256 - 1) /* Maximum len of R0 run of literals */
#if (R0MAX - (R0MAX & ~7u) >= 7)
#define R0FAST (R0MAX & ~7u) /* R0MAX aligned to 8 byte boundary */
#else
#define R0FAST (R0MAX & ~15u) /* R0MAX aligned to 8 byte boundary */
#endif
#if (R0MAX - R0FAST < 7) || ((R0FAST & 7) != 0)
# error "something went wrong"
#endif
#if (R0FAST * 2 < 512)
# error "R0FAST is not big enough"
#endif
/* 7 special codes from R0FAST+1 .. R0MAX
* these codes mean long R0 runs with lengths
* 512, 1024, 2048, 4096, 8192, 16384, 32768
*/
/***********************************************************************
// matching
************************************************************************/
#define PS *m_pos++ != *ip++
/* We already matched M2_MIN_LEN bytes.
* Try to match another M2_MAX_LEN - M2_MIN_LEN bytes. */
#if (M2_MAX_LEN - M2_MIN_LEN == 4)
# define MATCH_M2X (PS || PS || PS || PS)
#elif (M2_MAX_LEN - M2_MIN_LEN == 5)
# define MATCH_M2X (PS || PS || PS || PS || PS)
#elif (M2_MAX_LEN - M2_MIN_LEN == 6)
# define MATCH_M2X (PS || PS || PS || PS || PS || PS)
#elif (M2_MAX_LEN - M2_MIN_LEN == 7)
# define MATCH_M2X (PS || PS || PS || PS || PS || PS || PS)
#elif (M2_MAX_LEN - M2_MIN_LEN == 13)
# define MATCH_M2X (PS || PS || PS || PS || PS || PS || PS || PS || \
PS || PS || PS || PS || PS)
#elif (M2_MAX_LEN - M2_MIN_LEN == 14)
# define MATCH_M2X (PS || PS || PS || PS || PS || PS || PS || PS || \
PS || PS || PS || PS || PS || PS)
#elif (M2_MAX_LEN - M2_MIN_LEN == 16)
# define MATCH_M2X (PS || PS || PS || PS || PS || PS || PS || PS || \
PS || PS || PS || PS || PS || PS || PS || PS)
#elif (M2_MAX_LEN - M2_MIN_LEN == 29)
# define MATCH_M2X (PS || PS || PS || PS || PS || PS || PS || PS || \
PS || PS || PS || PS || PS || PS || PS || PS || \
PS || PS || PS || PS || PS || PS || PS || PS || \
PS || PS || PS || PS || PS)
#else
# error "MATCH_M2X not yet implemented"
#endif
/* We already matched M2_MIN_LEN bytes.
* Try to match another M2_MAX_LEN + 1 - M2_MIN_LEN bytes
* to see if we get more than a M2 match */
#define MATCH_M2 (MATCH_M2X || PS)
/***********************************************************************
// copying
************************************************************************/
#define _CP *op++ = *m_pos++
#if (M2_MIN_LEN == 2)
# define COPY_M2X _CP
#elif (M2_MIN_LEN == 3)
# define COPY_M2X _CP; _CP
#elif (M2_MIN_LEN == 4)
# define COPY_M2X _CP; _CP; _CP
#else
# error "COPY_M2X not yet implemented"
#endif
#if (M3_MIN_LEN == 3)
# define COPY_M3X _CP; _CP
#elif (M3_MIN_LEN == 4)
# define COPY_M3X _CP; _CP; _CP
#elif (M3_MIN_LEN == 9)
# define COPY_M3X _CP; _CP; _CP; _CP; _CP; _CP; _CP; _CP
#else
# error "COPY_M3X not yet implemented"
#endif
#define COPY_M2 COPY_M2X; *op++ = *m_pos++
#define COPY_M3 COPY_M3X; *op++ = *m_pos++
/***********************************************************************
//
************************************************************************/
#if defined(LZO_NEED_DICT_H)
#define DL_MIN_LEN M2_MIN_LEN
#define D_INDEX1(d,p) d = DM(DMUL(0x21,DX3(p,5,5,6)) >> 5)
#define D_INDEX2(d,p) d = (d & (D_MASK & 0x7ff)) ^ (D_HIGH | 0x1f)
#include "lzo_dict.h"
#ifndef MIN_LOOKAHEAD
#define MIN_LOOKAHEAD (M2_MAX_LEN + 1)
#endif
#ifndef MAX_LOOKBEHIND
#define MAX_LOOKBEHIND (MAX_OFFSET)
#endif
#endif /* defined(LZO_NEED_DICT_H) */
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

102
extern/lzo/src/lzo1b_r.ch vendored Normal file
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@ -0,0 +1,102 @@
/* lzo1b_r.ch -- literal run handling for the the LZO1B/LZO1C algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/***********************************************************************
// store a literal run (internal)
************************************************************************/
LZO_LOCAL_IMPL(lzo_bytep )
STORE_RUN ( lzo_bytep const oo, const lzo_bytep const ii, lzo_uint r_len)
{
lzo_bytep op;
const lzo_bytep ip;
lzo_uint t;
LZO_STATS(lzo_stats->literals += r_len);
op = oo;
ip = ii;
assert(r_len > 0);
/* code a long R0 run */
if (r_len >= 512)
{
unsigned r_bits = 6; /* 256 << 6 == 16384 */
lzo_uint tt = 32768u;
while (r_len >= (t = tt))
{
r_len -= t;
*op++ = 0; *op++ = (R0FAST - R0MIN) + 7;
MEMCPY8_DS(op, ip, t);
LZO_STATS(lzo_stats->r0long_runs++);
}
tt >>= 1;
do {
if (r_len >= (t = tt))
{
r_len -= t;
*op++ = 0; *op++ = LZO_BYTE((R0FAST - R0MIN) + r_bits);
MEMCPY8_DS(op, ip, t);
LZO_STATS(lzo_stats->r0long_runs++);
}
tt >>= 1;
} while (--r_bits > 0);
}
assert(r_len < 512);
while (r_len >= (t = R0FAST))
{
r_len -= t;
*op++ = 0; *op++ = (R0FAST - R0MIN);
MEMCPY8_DS(op, ip, t);
LZO_STATS(lzo_stats->r0fast_runs++);
}
t = r_len;
if (t >= R0MIN)
{
/* code a short R0 run */
*op++ = 0; *op++ = LZO_BYTE(t - R0MIN);
MEMCPY_DS(op, ip, t);
LZO_STATS(lzo_stats->r0short_runs++);
}
else if (t > 0)
{
/* code a short literal run */
LZO_STATS(lzo_stats->lit_runs++);
LZO_STATS(lzo_stats->lit_run[t]++);
*op++ = LZO_BYTE(t);
MEMCPY_DS(op, ip, t);
}
return op;
}
/* vim:set ts=4 sw=4 et: */

33
extern/lzo/src/lzo1b_rr.c vendored Normal file
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@ -0,0 +1,33 @@
/* lzo1b_rr.c -- literal run handling
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1b.h"
#include "lzo1b_r.ch"
/* vim:set ts=4 sw=4 et: */

196
extern/lzo/src/lzo1b_sm.ch vendored Normal file
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@ -0,0 +1,196 @@
/* lzo1b_sm.ch -- implementation of the LZO1B compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
/***********************************************************************
// search for a match
************************************************************************/
#if (DD_BITS == 0)
/* search ip in the dictionary */
DINDEX1(dindex,ip);
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,M3_MAX_OFFSET))
goto literal;
#if 1
if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
goto try_match;
DINDEX2(dindex,ip);
#endif
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,M3_MAX_OFFSET))
goto literal;
if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
goto try_match;
goto literal;
#else /* (DD_BITS == 0) */
/* search ip in the deepened dictionary */
{
lzo_dict_p d = &dict [ DINDEX(dv,ip) ];
const lzo_bytep ip_sav;
unsigned j = DD_SIZE;
lzo_uint x_len;
LZO_DEFINE_UNINITIALIZED_VAR(lzo_uint, x_off, 0);
DVAL_ASSERT(dv,ip);
ip_sav = ip;
m_len = 0;
do {
#if !defined(NDEBUG)
const lzo_bytep z_pos = NULL;
#endif
#if (LZO_DICT_USE_PTR)
m_pos = *d;
assert((z_pos = m_pos) == *d);
#if (LZO_DETERMINISTIC)
assert(m_pos == NULL || m_pos >= in);
assert(m_pos == NULL || m_pos < ip);
#endif
#else
x_off = *d;
#endif
assert(ip == ip_sav);
if (LZO_CHECK_MPOS(m_pos,x_off,in,ip,MAX_OFFSET))
#if (CLEVEL == 9)
*d = DENTRY(ip,in);
#else
((void)(0));
#endif
else if (m_pos[m_len] != ip[m_len])
((void)(0));
else if (*m_pos++ == *ip++ && *m_pos++ == *ip++ && *m_pos++ == *ip++)
{
#if !(LZO_DICT_USE_PTR)
assert((z_pos = ip - 3 - x_off) == (m_pos - 3));
#endif
/* a match */
if (MATCH_M2)
{
x_len = pd((ip - 1), ip_sav);
if (x_len > m_len)
{
m_len = x_len;
m_off = x_off;
assert((m_pos_sav = z_pos) != NULL);
}
#if (CLEVEL == 9)
/* try to find a closer match */
else if (x_len == m_len && x_off < m_off)
{
m_off = x_off;
assert((m_pos_sav = z_pos) != NULL);
}
#endif
}
else
{
assert((ip - ip_sav) == M2_MAX_LEN + 1);
#if (CLEVEL == 9)
#if defined(MATCH_IP_END)
{
const lzo_bytep end;
end = MATCH_IP_END;
while (ip < end && *m_pos == *ip)
m_pos++, ip++;
assert(ip <= in_end);
x_len = pd(ip, ip_sav);
}
if (x_len > m_len)
{
m_len = x_len;
m_off = x_off;
assert((m_pos_sav = z_pos) != NULL);
if (ip >= MATCH_IP_END)
{
ip = ip_sav;
#if 0
/* not needed - we are at the end */
d -= DD_SIZE - j;
assert(d == &dict [ DINDEX(dv,ip) ]);
UPDATE_P(d,drun,ip,in);
#endif
goto match;
}
}
else if (x_len == m_len && x_off < m_off)
{
m_off = x_off;
assert((m_pos_sav = z_pos) != NULL);
}
#else
/* try to find a closer match */
if (m_len < M2_MAX_LEN + 1 || x_off < m_off)
{
m_len = M2_MAX_LEN + 1;
m_off = x_off;
assert((m_pos_sav = z_pos) != NULL);
}
#endif
#else
/* don't search for a longer/closer match */
m_len = M2_MAX_LEN + 1;
m_off = x_off;
assert((m_pos_sav = z_pos) != NULL);
ip = ip_sav;
d -= DD_SIZE - j;
assert(d == &dict [ DINDEX(dv,ip) ]);
UPDATE_P(d,drun,ip,in);
goto match;
#endif
}
ip = ip_sav;
}
else
ip = ip_sav;
d++;
} while (--j > 0);
assert(ip == ip_sav);
d -= DD_SIZE;
assert(d == &dict [ DINDEX(dv,ip) ]);
UPDATE_P(d,drun,ip,in);
}
#endif /* (DD_BITS == 0) */
/* vim:set ts=4 sw=4 et: */

84
extern/lzo/src/lzo1b_tm.ch vendored Normal file
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@ -0,0 +1,84 @@
/* lzo1b_tm.ch -- implementation of the LZO1B compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
/***********************************************************************
// test for a potential match
************************************************************************/
#if (DD_BITS == 0)
try_match:
#if !defined(NDEBUG) && (LZO_DICT_USE_PTR)
#if (LZO_DETERMINISTIC)
assert(m_pos == NULL || m_pos >= in);
assert(m_pos == NULL || m_pos < ip);
#endif
m_pos_sav = m_pos;
#endif
if (m_pos[0] == ip[0] && m_pos[1] == ip[1] && m_pos[2] == ip[2])
{
m_pos += 3;
goto match;
}
#else /* (DD_BITS == 0) */
/* test potential match */
if (m_len > M2_MIN_LEN)
goto match;
if (m_len == M2_MIN_LEN)
{
#if (_MAX_OFFSET == _M2_MAX_OFFSET)
goto match;
#else
if (m_off <= M2_MAX_OFFSET)
goto match;
#if 0 && (M3_MIN_LEN == M2_MIN_LEN)
if (ip == ii)
goto match;
#endif
#endif
}
goto literal;
#endif /* (DD_BITS == 0) */
/* vim:set ts=4 sw=4 et: */

82
extern/lzo/src/lzo1b_xx.c vendored Normal file
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@ -0,0 +1,82 @@
/* lzo1b_xx.c -- LZO1B compression public entry point
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1b.h"
/***********************************************************************
//
************************************************************************/
static const lzo_compress_t * const c_funcs [9] =
{
&_lzo1b_1_compress_func,
&_lzo1b_2_compress_func,
&_lzo1b_3_compress_func,
&_lzo1b_4_compress_func,
&_lzo1b_5_compress_func,
&_lzo1b_6_compress_func,
&_lzo1b_7_compress_func,
&_lzo1b_8_compress_func,
&_lzo1b_9_compress_func
};
static lzo_compress_t lzo1b_get_compress_func(int clevel)
{
const lzo_compress_t *f;
if (clevel < LZO1B_BEST_SPEED || clevel > LZO1B_BEST_COMPRESSION)
{
if (clevel == LZO1B_DEFAULT_COMPRESSION)
clevel = LZO1B_BEST_SPEED;
else
return (lzo_compress_t) 0;
}
f = c_funcs[clevel-1];
assert(f && *f);
return *f;
}
LZO_PUBLIC(int)
lzo1b_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
int clevel )
{
lzo_compress_t f;
f = lzo1b_get_compress_func(clevel);
if (!f)
return LZO_E_ERROR;
return _lzo1b_do_compress(src,src_len,dst,dst_len,wrkmem,f);
}
/* vim:set ts=4 sw=4 et: */

35
extern/lzo/src/lzo1c_1.c vendored Normal file
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@ -0,0 +1,35 @@
/* lzo1c_1.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 1
#define DDBITS 0
#define CLEVEL 1
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

35
extern/lzo/src/lzo1c_2.c vendored Normal file
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@ -0,0 +1,35 @@
/* lzo1c_2.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 2
#define DDBITS 0
#define CLEVEL 2
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

35
extern/lzo/src/lzo1c_3.c vendored Normal file
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@ -0,0 +1,35 @@
/* lzo1c_3.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 3
#define DDBITS 0
#define CLEVEL 3
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_4.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 4
#define DDBITS 1
#define CLEVEL 2
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_5.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 5
#define DDBITS 1
#define CLEVEL 3
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_6.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 6
#define DDBITS 1
#define CLEVEL 5
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_7.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 7
#define DDBITS 2
#define CLEVEL 3
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_8.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 8
#define DDBITS 2
#define CLEVEL 8
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_9.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 9
#define DDBITS 2
#define CLEVEL 9
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_99.c -- main internal configuration file for the the LZO library
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define COMPRESS_ID 99
#define DDBITS 3
#define CLEVEL 9
#define D_BITS 16
#define MATCH_IP_END in_end
#include "compr1c.h"
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_9x.c -- implementation of the LZO1C-999 compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1c.h"
/***********************************************************************
//
************************************************************************/
#define SWD_N 16383 /* size of ring buffer */
#define SWD_THRESHOLD 2 /* lower limit for match length */
#define SWD_F 2048 /* upper limit for match length */
#define LZO1C 1
#define LZO_COMPRESS_T lzo1c_999_t
#define lzo_swd_t lzo1c_999_swd_t
#include "lzo_mchw.ch"
/***********************************************************************
//
************************************************************************/
static lzo_bytep
code_match ( LZO_COMPRESS_T *c, lzo_bytep op, lzo_uint m_len, lzo_uint m_off )
{
if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET)
{
assert(m_len >= M2_MIN_LEN);
assert(m_off >= M2_MIN_OFFSET);
m_off -= M2_MIN_OFFSET;
/* code match len + low offset bits */
*op++ = LZO_BYTE(((m_len - (M2_MIN_LEN - 2)) << M2O_BITS) |
(m_off & M2O_MASK));
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M2O_BITS);
c->m2_m++;
}
else
{
assert(m_len >= M3_MIN_LEN);
assert(m_off <= M3_MAX_OFFSET);
m_off -= M3_MIN_OFFSET - M3_EOF_OFFSET;
/* code match len */
if (m_len <= M3_MAX_LEN)
*op++ = LZO_BYTE(M3_MARKER | (m_len - (M3_MIN_LEN - 1)));
else
{
assert(m_len >= M4_MIN_LEN);
/* code M4 match len flag */
*op++ = M4_MARKER;
/* code match len */
m_len -= M4_MIN_LEN - 1;
while (m_len > 255)
{
m_len -= 255;
*op++ = 0;
}
assert(m_len > 0);
*op++ = LZO_BYTE(m_len);
}
/* code low offset bits */
*op++ = LZO_BYTE(m_off & M3O_MASK);
/* code high offset bits */
*op++ = LZO_BYTE(m_off >> M3O_BITS);
c->r1_m_len = 0;
c->m3 = op;
c->m3_m++;
}
return op;
}
/***********************************************************************
// this is a public function, but there is no prototype in a header file
************************************************************************/
LZO_EXTERN(int)
lzo1c_999_compress_callback ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_callback_p cb,
lzo_uint max_chain );
LZO_PUBLIC(int)
lzo1c_999_compress_callback ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_callback_p cb,
lzo_uint max_chain )
{
lzo_bytep op;
const lzo_bytep ii;
lzo_uint lit;
lzo_uint m_len, m_off;
LZO_COMPRESS_T cc;
LZO_COMPRESS_T * const c = &cc;
lzo_swd_p const swd = (lzo_swd_p) wrkmem;
int r;
/* sanity check */
LZO_COMPILE_TIME_ASSERT(LZO1C_999_MEM_COMPRESS >= SIZEOF_LZO_SWD_T)
c->init = 0;
c->ip = c->in = in;
c->in_end = in + in_len;
c->cb = cb;
c->r1_r = c->m3_r = c->m2_m = c->m3_m = 0;
op = out;
ii = c->ip; /* point to start of literal run */
lit = 0;
c->r1_m_len = 0;
c->m3 = out + 1; /* pointer after last m3/m4 match */
r = init_match(c,swd,NULL,0,0);
if (r != 0)
return r;
if (max_chain > 0)
swd->max_chain = max_chain;
r = find_match(c,swd,0,0);
if (r != 0)
return r;
while (c->look > 0)
{
int lazy_match_min_gain = -1;
lzo_uint ahead = 0;
m_len = c->m_len;
m_off = c->m_off;
#if 0
printf("%5ld: %5d len:%3d off:%5d\n", (c->ip-c->look)-in, c->look,
m_len, m_off);
#endif
assert(c->ip - c->look >= in);
if (lit == 0)
ii = c->ip - c->look;
assert(ii + lit == c->ip - c->look);
assert(swd->b_char == *(c->ip - c->look));
if ((m_len < M2_MIN_LEN) ||
(m_len < M3_MIN_LEN && m_off > M2_MAX_OFFSET))
{
m_len = 0;
}
else
{
assert(c->ip - c->look - m_off >= in);
assert(c->ip - c->look - m_off + m_len < c->ip);
assert(lzo_memcmp(c->ip - c->look, c->ip - c->look - m_off,
m_len) == 0);
if (lit > 0)
{
/* we have a current literal run: do not try a lazy match,
if the literal could be coded into a r1 or m3 match */
if (lit == 1 && c->r1_m_len == M2_MIN_LEN)
lazy_match_min_gain = -1;
else if (lit == 3 && op == c->m3)
lazy_match_min_gain = -1;
else if (lit < 3 && op == c->m3)
lazy_match_min_gain = 0;
else
lazy_match_min_gain = 1;
#if (M2_MIN_LEN == 2)
if (m_len == 2)
{
/* don't code a match of len 2 if we have to
code a literal run. Code a literal instead. */
m_len = 0;
}
#endif
#if (M2_MIN_LEN == M3_MIN_LEN)
if (m_len == M2_MIN_LEN && m_off > M2_MAX_OFFSET)
{
/* don't code a M3 match of len 3 if we have to
code a literal run. Code a literal instead. */
m_len = 0;
}
#endif
}
else
{
/* no current literal run: only try a lazy match,
if the literal could be coded into a r1 or m3 match */
if (c->r1_m_len == M2_MIN_LEN || op == c->m3)
lazy_match_min_gain = 0;
else
lazy_match_min_gain = -1;
}
}
/* try a lazy match */
if (m_len == 0)
lazy_match_min_gain = -1;
if (lazy_match_min_gain >= 0 && c->look > m_len)
{
assert(m_len > 0);
r = find_match(c,swd,1,0);
assert(r == 0); LZO_UNUSED(r);
assert(c->look > 0);
if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET &&
c->m_off > M2_MAX_OFFSET)
lazy_match_min_gain += 1;
if (c->m_len >= m_len + lazy_match_min_gain)
{
c->lazy++;
#if !defined(NDEBUG)
m_len = c->m_len;
m_off = c->m_off;
assert(lzo_memcmp(c->ip - c->look, c->ip - c->look - m_off,
m_len) == 0);
#endif
lit++;
assert(ii + lit == c->ip - c->look);
continue;
}
else
{
ahead = 1;
assert(ii + lit + 1 == c->ip - c->look);
}
assert(m_len > 0);
}
assert(ii + lit + ahead == c->ip - c->look);
if (m_len == 0)
{
/* a literal */
lit++;
r = find_match(c,swd,1,0);
assert(r == 0); LZO_UNUSED(r);
}
else
{
/* 1 - store run */
if (lit > 0)
{
/* code current literal run */
if (lit == 1 && c->r1_m_len == M2_MIN_LEN)
{
/* Code a context sensitive R1 match. */
assert((op[-2] >> M2O_BITS) == (M2_MARKER >> M2O_BITS));
op[-2] &= M2O_MASK;
assert((op[-2] >> M2O_BITS) == 0);
/* copy 1 literal */
*op++ = *ii++;
assert(ii + ahead == c->ip - c->look);
c->r1_r++;
}
else if (lit < 4 && op == c->m3)
{
assert((c->m3[-2] >> M3O_BITS) == 0);
c->m3[-2] = LZO_BYTE(c->m3[-2] | (lit << M3O_BITS));
MEMCPY_DS(op, ii, lit);
assert(ii + ahead == c->ip - c->look);
c->m3_r++;
}
else
{
op = STORE_RUN(op,ii,lit);
}
if (lit < R0FAST)
c->r1_m_len = m_len;
else
c->r1_m_len = 0;
lit = 0;
}
else
c->r1_m_len = 0;
/* 2 - code match */
op = code_match(c,op,m_len,m_off);
r = find_match(c,swd,m_len,1+ahead);
assert(r == 0); LZO_UNUSED(r);
}
c->codesize = pd(op, out);
}
/* store final run */
if (lit > 0)
op = STORE_RUN(op,ii,lit);
#if defined(LZO_EOF_CODE)
*op++ = M3_MARKER | 1;
*op++ = 0;
*op++ = 0;
#endif
c->codesize = pd(op, out);
assert(c->textsize == in_len);
*out_len = pd(op, out);
if (c->cb && c->cb->nprogress)
(*c->cb->nprogress)(c->cb, c->textsize, c->codesize, 0);
#if 0
printf("%ld %ld -> %ld: %ld %ld %ld %ld %ld\n",
(long) c->textsize, (long)in_len, (long) c->codesize,
c->r1_r, c->m3_r, c->m2_m, c->m3_m, c->lazy);
#endif
return LZO_E_OK;
}
/***********************************************************************
//
************************************************************************/
LZO_PUBLIC(int)
lzo1c_999_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
return lzo1c_999_compress_callback(in,in_len,out,out_len,wrkmem,
(lzo_callback_p) 0, 0);
}
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_cc.c -- LZO1C compression internal entry point
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#define LZO_NEED_DICT_H 1
#include "config1c.h"
/***********************************************************************
// compression internal entry point.
************************************************************************/
LZO_LOCAL_IMPL(int)
_lzo1c_do_compress ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_compress_t func )
{
int r;
#if defined(LZO_TEST_COMPRESS_OVERRUN)
lzo_uint avail_out = *out_len;
#endif
#if (LZO_COLLECT_STATS)
_lzo1c_stats_init(lzo_stats);
lzo_stats->in_len = in_len;
#endif
/* don't try to compress a block that's too short */
if (in_len == 0)
{
*out_len = 0;
r = LZO_E_OK;
}
else if (in_len <= MIN_LOOKAHEAD + 1)
{
#if defined(LZO_RETURN_IF_NOT_COMPRESSIBLE)
*out_len = 0;
r = LZO_E_NOT_COMPRESSIBLE;
#else
*out_len = pd(STORE_RUN(out,in,in_len), out);
r = (*out_len > in_len) ? LZO_E_OK : LZO_E_ERROR;
#endif
}
else
r = func(in,in_len,out,out_len,wrkmem);
#if defined(LZO_EOF_CODE)
#if defined(LZO_TEST_COMPRESS_OVERRUN)
if (r == LZO_E_OK && avail_out - *out_len < 3)
r = LZO_E_COMPRESS_OVERRUN;
#endif
if (r == LZO_E_OK)
{
lzo_bytep op = out + *out_len;
op[0] = M3_MARKER | 1;
op[1] = 0;
op[2] = 0;
*out_len += 3;
}
#endif
#if (LZO_COLLECT_STATS)
lzo_stats->out_len = *out_len;
lzo_stats->match_bytes =
1 * lzo_stats->m1_matches + 2 * lzo_stats->m2_matches +
3 * lzo_stats->m3_matches + 4 * lzo_stats->m4_matches;
_lzo1c_stats_calc(lzo_stats);
#endif
return r;
}
/***********************************************************************
// note: this is not thread safe, but as it is used for finetuning only
// we don't care
************************************************************************/
#undef lzo_stats
/* lzo_stats_t is still defined */
#if (LZO_COLLECT_STATS)
static lzo_stats_t lzo_statistics;
lzo_stats_t * const lzo1c_stats = &lzo_statistics;
void _lzo1c_stats_init(lzo_stats_t *lzo_stats)
{
lzo_memset(lzo_stats,0,sizeof(*lzo_stats));
}
void _lzo1c_stats_calc(lzo_stats_t *lzo_stats)
{
lzo_stats->matches =
lzo_stats->m1_matches + lzo_stats->m2_matches +
lzo_stats->m3_matches + lzo_stats->m4_matches;
lzo_stats->literal_overhead = lzo_stats->lit_runs +
2 * (lzo_stats->r0short_runs + lzo_stats->r0fast_runs +
lzo_stats->r0long_runs);
lzo_stats->literal_bytes = lzo_stats->literals +
lzo_stats->literal_overhead;
#if 0
assert(lzo_stats->match_bytes + lzo_stats->literal_bytes ==
lzo_stats->out_len);
#endif
lzo_stats->m2_matches -= lzo_stats->r1_matches;
lzo_stats->m2_match[M2_MIN_LEN] -= lzo_stats->r1_matches;
if (lzo_stats->literals > 0)
lzo_stats->literal_overhead_percent =
100.0 * lzo_stats->literal_overhead / lzo_stats->literals;
}
#endif
/* vim:set ts=4 sw=4 et: */

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/* lzo1c_cc.h -- definitions for the the LZO1C compression driver
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
/* WARNING: this file should *not* be used by applications. It is
part of the implementation of the library and is subject
to change.
*/
#ifndef __LZO1C_CC_H
#define __LZO1C_CC_H 1
/***********************************************************************
//
************************************************************************/
extern const lzo_compress_t _lzo1c_1_compress_func;
extern const lzo_compress_t _lzo1c_2_compress_func;
extern const lzo_compress_t _lzo1c_3_compress_func;
extern const lzo_compress_t _lzo1c_4_compress_func;
extern const lzo_compress_t _lzo1c_5_compress_func;
extern const lzo_compress_t _lzo1c_6_compress_func;
extern const lzo_compress_t _lzo1c_7_compress_func;
extern const lzo_compress_t _lzo1c_8_compress_func;
extern const lzo_compress_t _lzo1c_9_compress_func;
extern const lzo_compress_t _lzo1c_99_compress_func;
/***********************************************************************
//
************************************************************************/
LZO_LOCAL_DECL(lzo_bytep )
_lzo1c_store_run ( lzo_bytep const oo, const lzo_bytep const ii,
lzo_uint r_len);
#define STORE_RUN _lzo1c_store_run
LZO_LOCAL_DECL(int)
_lzo1c_do_compress ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_compress_t func );
#endif /* already included */
/* vim:set ts=4 sw=4 et: */

36
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/* lzo1c_d1.c -- LZO1C decompression
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1c.h"
#undef LZO_TEST_OVERRUN
#define DO_DECOMPRESS lzo1c_decompress
#include "lzo1b_d.ch"
/* vim:set ts=4 sw=4 et: */

50
extern/lzo/src/lzo1c_d2.c vendored Normal file
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/* lzo1c_d2.c -- LZO1C decompression with overrun testing
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1c.h"
#define LZO_TEST_OVERRUN 1
#define DO_DECOMPRESS lzo1c_decompress_safe
#include "lzo1b_d.ch"
#if defined(LZO_ARCH_I386) && defined(LZO_USE_ASM)
LZO_EXTERN(int) lzo1c_decompress_asm_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_PUBLIC(int) lzo1c_decompress_asm_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem)
{
return lzo1c_decompress_safe(src, src_len, dst, dst_len, wrkmem);
}
#endif
/* vim:set ts=4 sw=4 et: */

33
extern/lzo/src/lzo1c_rr.c vendored Normal file
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/* lzo1c_rr.c -- literal run handling
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1c.h"
#include "lzo1b_r.ch"
/* vim:set ts=4 sw=4 et: */

82
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/* lzo1c_xx.c -- LZO1C compression public entry point
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1c.h"
/***********************************************************************
//
************************************************************************/
static const lzo_compress_t * const c_funcs [9] =
{
&_lzo1c_1_compress_func,
&_lzo1c_2_compress_func,
&_lzo1c_3_compress_func,
&_lzo1c_4_compress_func,
&_lzo1c_5_compress_func,
&_lzo1c_6_compress_func,
&_lzo1c_7_compress_func,
&_lzo1c_8_compress_func,
&_lzo1c_9_compress_func
};
static lzo_compress_t lzo1c_get_compress_func(int clevel)
{
const lzo_compress_t *f;
if (clevel < LZO1C_BEST_SPEED || clevel > LZO1C_BEST_COMPRESSION)
{
if (clevel == LZO1C_DEFAULT_COMPRESSION)
clevel = LZO1C_BEST_SPEED;
else
return (lzo_compress_t) 0;
}
f = c_funcs[clevel-1];
assert(f && *f);
return *f;
}
LZO_PUBLIC(int)
lzo1c_compress ( const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem,
int clevel )
{
lzo_compress_t f;
f = lzo1c_get_compress_func(clevel);
if (!f)
return LZO_E_ERROR;
return _lzo1c_do_compress(src,src_len,dst,dst_len,wrkmem,f);
}
/* vim:set ts=4 sw=4 et: */

301
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/* lzo1f_1.c -- implementation of the LZO1F-1 compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo_conf.h"
#include <lzo/lzo1f.h>
/***********************************************************************
//
************************************************************************/
#define M2_MAX_OFFSET 0x0800
#define M3_MAX_OFFSET 0x3fff
#define M3_MARKER 224
#ifndef LZO_HASH
#define LZO_HASH LZO_HASH_LZO_INCREMENTAL_A
#endif
#define D_BITS 14
#define D_INDEX1(d,p) d = DM(DMUL(0x21,DX3(p,5,5,6)) >> 5)
#define D_INDEX2(d,p) d = (d & (D_MASK & 0x7ff)) ^ (D_HIGH | 0x1f)
#include "lzo_dict.h"
/***********************************************************************
// compress a block of data.
************************************************************************/
static __lzo_noinline
int do_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
const lzo_bytep ip;
lzo_bytep op;
const lzo_bytep const in_end = in + in_len;
const lzo_bytep const ip_end = in + in_len - 9;
const lzo_bytep ii;
lzo_dict_p const dict = (lzo_dict_p) wrkmem;
op = out;
ip = in;
ii = ip;
ip++;
for (;;)
{
const lzo_bytep m_pos;
LZO_DEFINE_UNINITIALIZED_VAR(lzo_uint, m_off, 0);
lzo_uint m_len;
lzo_uint dindex;
lzo_uint lit;
DINDEX1(dindex,ip);
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,M3_MAX_OFFSET))
goto literal;
#if 1
if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
goto try_match;
DINDEX2(dindex,ip);
#endif
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,M3_MAX_OFFSET))
goto literal;
if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
goto try_match;
goto literal;
try_match:
#if 0 && (LZO_OPT_UNALIGNED16)
if (UA_GET_NE16(m_pos) != UA_GET_NE16(ip))
#else
if (m_pos[0] != ip[0] || m_pos[1] != ip[1])
#endif
{
}
else
{
if (m_pos[2] == ip[2])
{
m_pos += 3;
#if 0
if (m_off <= M2_MAX_OFFSET)
goto match;
if (lit <= 3)
goto match;
if (lit == 3) /* better compression, but slower */
{
assert(op - 2 > out); op[-2] |= LZO_BYTE(3);
*op++ = *ii++; *op++ = *ii++; *op++ = *ii++;
goto code_match;
}
if (*m_pos == ip[3])
#endif
goto match;
}
}
/* a literal */
literal:
UPDATE_I(dict,0,dindex,ip,in);
if (++ip >= ip_end)
break;
continue;
/* a match */
match:
UPDATE_I(dict,0,dindex,ip,in);
/* store current literal run */
lit = pd(ip,ii);
if (lit > 0)
{
lzo_uint t = lit;
if (t < 4 && op > out)
op[-2] = LZO_BYTE(op[-2] | t);
else if (t <= 31)
*op++ = LZO_BYTE(t);
else
{
lzo_uint tt = t - 31;
*op++ = 0;
while (tt > 255)
{
tt -= 255;
UA_SET1(op, 0);
op++;
}
assert(tt > 0);
*op++ = LZO_BYTE(tt);
}
do *op++ = *ii++; while (--t > 0);
}
assert(ii == ip);
/* code the match */
ip += 3;
if (*m_pos++ != *ip++ || *m_pos++ != *ip++ || *m_pos++ != *ip++ ||
*m_pos++ != *ip++ || *m_pos++ != *ip++ || *m_pos++ != *ip++)
{
--ip;
m_len = pd(ip, ii);
assert(m_len >= 3); assert(m_len <= 8);
if (m_off <= M2_MAX_OFFSET)
{
m_off -= 1;
*op++ = LZO_BYTE(((m_len - 2) << 5) | ((m_off & 7) << 2));
*op++ = LZO_BYTE(m_off >> 3);
}
else if (m_len == 3 && m_off <= 2*M2_MAX_OFFSET && lit > 0)
{
m_off -= 1;
/* m_off -= M2_MAX_OFFSET; */
*op++ = LZO_BYTE(((m_off & 7) << 2));
*op++ = LZO_BYTE(m_off >> 3);
}
else
{
*op++ = LZO_BYTE(M3_MARKER | (m_len - 2));
*op++ = LZO_BYTE((m_off & 63) << 2);
*op++ = LZO_BYTE(m_off >> 6);
}
}
else
{
{
const lzo_bytep end;
end = in_end;
while (ip < end && *m_pos == *ip)
m_pos++, ip++;
m_len = pd(ip, ii);
}
assert(m_len >= 3);
if (m_len <= 33)
*op++ = LZO_BYTE(M3_MARKER | (m_len - 2));
else
{
m_len -= 33;
*op++ = M3_MARKER | 0;
while (m_len > 255)
{
m_len -= 255;
UA_SET1(op, 0);
op++;
}
assert(m_len > 0);
*op++ = LZO_BYTE(m_len);
}
*op++ = LZO_BYTE((m_off & 63) << 2);
*op++ = LZO_BYTE(m_off >> 6);
}
ii = ip;
if (ip >= ip_end)
break;
}
/* store final literal run */
if (pd(in_end,ii) > 0)
{
lzo_uint t = pd(in_end,ii);
if (t < 4 && op > out)
op[-2] = LZO_BYTE(op[-2] | t);
else if (t <= 31)
*op++ = LZO_BYTE(t);
else
{
lzo_uint tt = t - 31;
*op++ = 0;
while (tt > 255)
{
tt -= 255;
UA_SET1(op, 0);
op++;
}
assert(tt > 0);
*op++ = LZO_BYTE(tt);
}
UA_COPYN(op, ii, t);
op += t;
}
*out_len = pd(op, out);
return LZO_E_OK;
}
/***********************************************************************
// public entry point
************************************************************************/
LZO_PUBLIC(int)
lzo1f_1_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
lzo_bytep op = out;
int r = LZO_E_OK;
if (in_len == 0)
*out_len = 0;
else if (in_len <= 10)
{
*op++ = LZO_BYTE(in_len);
do *op++ = *in++; while (--in_len > 0);
*out_len = pd(op, out);
}
else
r = do_compress(in,in_len,out,out_len,wrkmem);
if (r == LZO_E_OK)
{
op = out + *out_len;
op[0] = M3_MARKER | 1;
op[1] = 0;
op[2] = 0;
*out_len += 3;
}
return r;
}
/* vim:set ts=4 sw=4 et: */

330
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/* lzo1f_9x.c -- implementation of the LZO1F-999 compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1f.h"
/***********************************************************************
//
************************************************************************/
#define SWD_N 16383 /* size of ring buffer */
#define SWD_THRESHOLD 2 /* lower limit for match length */
#define SWD_F 2048 /* upper limit for match length */
#define LZO1F 1
#define LZO_COMPRESS_T lzo1f_999_t
#define lzo_swd_t lzo1f_999_swd_t
#include "lzo_mchw.ch"
/***********************************************************************
//
************************************************************************/
static lzo_bytep
code_match ( LZO_COMPRESS_T *c, lzo_bytep op, lzo_uint m_len, lzo_uint m_off )
{
if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET)
{
m_off -= 1;
*op++ = LZO_BYTE(((m_len - 2) << 5) | ((m_off & 7) << 2));
*op++ = LZO_BYTE(m_off >> 3);
c->m2_m++;
}
else if (m_len == M2_MIN_LEN && m_off <= 2 * M2_MAX_OFFSET &&
c->r1_lit > 0)
{
assert(m_off > M2_MAX_OFFSET);
m_off -= 1 + M2_MAX_OFFSET;
*op++ = LZO_BYTE(((m_off & 7) << 2));
*op++ = LZO_BYTE(m_off >> 3);
c->r1_r++;
}
else
{
if (m_len <= M3_MAX_LEN)
*op++ = LZO_BYTE(M3_MARKER | (m_len - 2));
else
{
m_len -= M3_MAX_LEN;
*op++ = M3_MARKER | 0;
while (m_len > 255)
{
m_len -= 255;
*op++ = 0;
}
assert(m_len > 0);
*op++ = LZO_BYTE(m_len);
}
*op++ = LZO_BYTE((m_off & 63) << 2);
*op++ = LZO_BYTE(m_off >> 6);
c->m3_m++;
}
return op;
}
static lzo_bytep
STORE_RUN ( lzo_bytep op, const lzo_bytep ii, lzo_uint t, lzo_bytep out )
{
if (t < 4 && op > out)
op[-2] = LZO_BYTE(op[-2] | t);
else if (t <= 31)
*op++ = LZO_BYTE(t);
else
{
lzo_uint tt = t - 31;
*op++ = 0;
while (tt > 255)
{
tt -= 255;
*op++ = 0;
}
assert(tt > 0);
*op++ = LZO_BYTE(tt);
}
do *op++ = *ii++; while (--t > 0);
return op;
}
/***********************************************************************
// this is a public function, but there is no prototype in a header file
************************************************************************/
LZO_EXTERN(int)
lzo1f_999_compress_callback ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_callback_p cb,
lzo_uint max_chain );
LZO_PUBLIC(int)
lzo1f_999_compress_callback ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
lzo_callback_p cb,
lzo_uint max_chain )
{
lzo_bytep op;
const lzo_bytep ii;
lzo_uint lit;
lzo_uint m_len, m_off;
LZO_COMPRESS_T cc;
LZO_COMPRESS_T * const c = &cc;
lzo_swd_p const swd = (lzo_swd_p) wrkmem;
int r;
/* sanity check */
LZO_COMPILE_TIME_ASSERT(LZO1F_999_MEM_COMPRESS >= SIZEOF_LZO_SWD_T)
c->init = 0;
c->ip = c->in = in;
c->in_end = in + in_len;
c->cb = cb;
c->r1_r = c->m2_m = c->m3_m = 0;
op = out;
ii = c->ip; /* point to start of literal run */
lit = 0;
c->r1_lit = c->r1_m_len = 0;
r = init_match(c,swd,NULL,0,0);
if (r != 0)
return r;
if (max_chain > 0)
swd->max_chain = max_chain;
r = find_match(c,swd,0,0);
if (r != 0)
return r;
while (c->look > 0)
{
int lazy_match_min_gain = -1;
lzo_uint ahead = 0;
m_len = c->m_len;
m_off = c->m_off;
assert(c->ip - c->look >= in);
if (lit == 0)
ii = c->ip - c->look;
assert(ii + lit == c->ip - c->look);
assert(swd->b_char == *(c->ip - c->look));
if ((m_len < M2_MIN_LEN) ||
(m_len < M3_MIN_LEN && m_off > M2_MAX_OFFSET))
{
m_len = 0;
}
else
{
assert(c->ip - c->look - m_off >= in);
assert(c->ip - c->look - m_off + m_len < c->ip);
assert(lzo_memcmp(c->ip - c->look, c->ip - c->look - m_off,
m_len) == 0);
if (lit < 3)
lazy_match_min_gain = 1;
else if (lit == 3)
lazy_match_min_gain = 3;
else if (lit == 31)
lazy_match_min_gain = 3;
else
lazy_match_min_gain = 1;
}
/* try a lazy match */
if (m_len > 0 && lazy_match_min_gain >= 0 && c->look > m_len)
{
r = find_match(c,swd,1,0);
assert(r == 0); LZO_UNUSED(r);
assert(c->look > 0);
if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET &&
c->m_off > M2_MAX_OFFSET)
{
lazy_match_min_gain += 1;
}
else if (c->m_len <= M2_MAX_LEN &&
c->m_off <= M2_MAX_OFFSET &&
m_off > M2_MAX_OFFSET)
{
if (lazy_match_min_gain > 0)
lazy_match_min_gain -= 1;
}
else if (m_len == M2_MIN_LEN && c->m_len == M2_MIN_LEN &&
c->m_off <= 2 * M2_MAX_OFFSET &&
m_off > M2_MAX_OFFSET)
{
if (lazy_match_min_gain > 0)
lazy_match_min_gain -= 1;
}
if (c->m_len >= m_len + lazy_match_min_gain)
{
c->lazy++;
#if !defined(NDEBUG)
m_len = c->m_len;
m_off = c->m_off;
assert(lzo_memcmp(c->ip - c->look, c->ip - c->look - m_off,
m_len) == 0);
#endif
lit++;
assert(ii + lit == c->ip - c->look);
continue;
}
else
{
ahead = 1;
assert(ii + lit + 1 == c->ip - c->look);
}
assert(m_len > 0);
}
assert(ii + lit + ahead == c->ip - c->look);
if (m_len == 0)
{
/* a literal */
lit++;
r = find_match(c,swd,1,0);
assert(r == 0); LZO_UNUSED(r);
}
else
{
/* 1 - store run */
if (lit > 0)
{
op = STORE_RUN(op,ii,lit,out);
c->r1_m_len = m_len;
c->r1_lit = lit;
lit = 0;
}
else
c->r1_lit = c->r1_m_len = 0;
/* 2 - code match */
op = code_match(c,op,m_len,m_off);
r = find_match(c,swd,m_len,1+ahead);
assert(r == 0); LZO_UNUSED(r);
}
c->codesize = pd(op, out);
}
/* store final run */
if (lit > 0)
op = STORE_RUN(op,ii,lit,out);
#if defined(LZO_EOF_CODE)
*op++ = M3_MARKER | 1;
*op++ = 0;
*op++ = 0;
#endif
c->codesize = pd(op, out);
assert(c->textsize == in_len);
*out_len = pd(op, out);
if (c->cb && c->cb->nprogress)
(*c->cb->nprogress)(c->cb, c->textsize, c->codesize, 0);
#if 0
printf("%ld %ld -> %ld: %ld %ld %ld %ld\n",
(long) c->textsize, (long)in_len, (long) c->codesize,
c->r1_r, c->m2_m, c->m3_m, c->lazy);
#endif
return LZO_E_OK;
}
/***********************************************************************
//
************************************************************************/
LZO_PUBLIC(int)
lzo1f_999_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
return lzo1f_999_compress_callback(in,in_len,out,out_len,wrkmem,
(lzo_callback_p) 0, 0);
}
/* vim:set ts=4 sw=4 et: */

210
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/* lzo1f_d.ch -- implementation of the LZO1F decompression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo1_d.ch"
/***********************************************************************
// decompress a block of data.
************************************************************************/
LZO_PUBLIC(int)
DO_DECOMPRESS ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
lzo_bytep op;
const lzo_bytep ip;
lzo_uint t;
const lzo_bytep m_pos;
const lzo_bytep const ip_end = in + in_len;
#if defined(HAVE_ANY_OP)
lzo_bytep const op_end = out + *out_len;
#endif
LZO_UNUSED(wrkmem);
*out_len = 0;
op = out;
ip = in;
while (TEST_IP_AND_TEST_OP)
{
t = *ip++;
if (t > 31)
goto match;
/* a literal run */
if (t == 0)
{
NEED_IP(1);
while (*ip == 0)
{
t += 255;
ip++;
TEST_IV(t);
NEED_IP(1);
}
t += 31 + *ip++;
}
/* copy literals */
assert(t > 0); NEED_OP(t); NEED_IP(t+1);
#if (LZO_OPT_UNALIGNED32)
if (t >= 4)
{
do {
UA_COPY4(op, ip);
op += 4; ip += 4; t -= 4;
} while (t >= 4);
if (t > 0) do *op++ = *ip++; while (--t > 0);
}
else
#endif
do *op++ = *ip++; while (--t > 0);
t = *ip++;
while (TEST_IP_AND_TEST_OP)
{
/* handle matches */
if (t < 32)
{
m_pos = op - 1 - 0x800;
m_pos -= (t >> 2) & 7;
m_pos -= *ip++ << 3;
TEST_LB(m_pos); NEED_OP(3);
*op++ = *m_pos++; *op++ = *m_pos++; *op++ = *m_pos++;
}
else
{
match:
if (t < M3_MARKER)
{
m_pos = op - 1;
m_pos -= (t >> 2) & 7;
m_pos -= *ip++ << 3;
t >>= 5;
TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
goto copy_match;
}
else
{
t &= 31;
if (t == 0)
{
NEED_IP(1);
while (*ip == 0)
{
t += 255;
ip++;
TEST_OV(t);
NEED_IP(1);
}
t += 31 + *ip++;
}
NEED_IP(2);
m_pos = op;
#if (LZO_OPT_UNALIGNED16) && (LZO_ABI_LITTLE_ENDIAN)
m_pos -= UA_GET_LE16(ip) >> 2;
ip += 2;
#else
m_pos -= *ip++ >> 2;
m_pos -= *ip++ << 6;
#endif
if (m_pos == op)
goto eof_found;
}
/* copy match */
TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
#if (LZO_OPT_UNALIGNED32)
if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4)
{
UA_COPY4(op, m_pos);
op += 4; m_pos += 4; t -= 4 - (3 - 1);
do {
UA_COPY4(op, m_pos);
op += 4; m_pos += 4; t -= 4;
} while (t >= 4);
if (t > 0) do *op++ = *m_pos++; while (--t > 0);
}
else
#endif
{
copy_match:
*op++ = *m_pos++; *op++ = *m_pos++;
do *op++ = *m_pos++; while (--t > 0);
}
}
t = ip[-2] & 3;
if (t == 0)
break;
/* copy literals */
assert(t > 0); NEED_OP(t); NEED_IP(t+1);
do *op++ = *ip++; while (--t > 0);
t = *ip++;
}
}
#if defined(HAVE_TEST_IP) || defined(HAVE_TEST_OP)
/* no EOF code was found */
*out_len = pd(op, out);
return LZO_E_EOF_NOT_FOUND;
#endif
eof_found:
assert(t == 1);
*out_len = pd(op, out);
return (ip == ip_end ? LZO_E_OK :
(ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
#if defined(HAVE_NEED_IP)
input_overrun:
*out_len = pd(op, out);
return LZO_E_INPUT_OVERRUN;
#endif
#if defined(HAVE_NEED_OP)
output_overrun:
*out_len = pd(op, out);
return LZO_E_OUTPUT_OVERRUN;
#endif
#if defined(LZO_TEST_OVERRUN_LOOKBEHIND)
lookbehind_overrun:
*out_len = pd(op, out);
return LZO_E_LOOKBEHIND_OVERRUN;
#endif
}
/* vim:set ts=4 sw=4 et: */

36
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/* lzo1f_d1.c -- LZO1F decompression
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1f.h"
#undef LZO_TEST_OVERRUN
#define DO_DECOMPRESS lzo1f_decompress
#include "lzo1f_d.ch"
/* vim:set ts=4 sw=4 et: */

50
extern/lzo/src/lzo1f_d2.c vendored Normal file
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/* lzo1f_d2.c -- LZO1F decompression with overrun testing
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1f.h"
#define LZO_TEST_OVERRUN 1
#define DO_DECOMPRESS lzo1f_decompress_safe
#include "lzo1f_d.ch"
#if defined(LZO_ARCH_I386) && defined(LZO_USE_ASM)
LZO_EXTERN(int) lzo1f_decompress_asm_fast_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_PUBLIC(int) lzo1f_decompress_asm_fast_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem)
{
return lzo1f_decompress_safe(src, src_len, dst, dst_len, wrkmem);
}
#endif
/* vim:set ts=4 sw=4 et: */

57
extern/lzo/src/lzo1x_1.c vendored Normal file
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/* lzo1x_1.c -- LZO1X-1 compression
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo_conf.h"
#if 1 && defined(UA_GET_LE32)
#undef LZO_DICT_USE_PTR
#define LZO_DICT_USE_PTR 0
#undef lzo_dict_t
#define lzo_dict_t lzo_uint16_t
#endif
#define LZO_NEED_DICT_H 1
#ifndef D_BITS
#define D_BITS 14
#endif
#define D_INDEX1(d,p) d = DM(DMUL(0x21,DX3(p,5,5,6)) >> 5)
#define D_INDEX2(d,p) d = (d & (D_MASK & 0x7ff)) ^ (D_HIGH | 0x1f)
#if 1
#define DINDEX(dv,p) DM(((DMUL(0x1824429d,dv)) >> (32-D_BITS)))
#else
#define DINDEX(dv,p) DM((dv) + ((dv) >> (32-D_BITS)))
#endif
#include "config1x.h"
#define LZO_DETERMINISTIC !(LZO_DICT_USE_PTR)
#ifndef DO_COMPRESS
#define DO_COMPRESS lzo1x_1_compress
#endif
#include "lzo1x_c.ch"
/* vim:set ts=4 sw=4 et: */

57
extern/lzo/src/lzo1x_1k.c vendored Normal file
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/* lzo1x_1k.c -- LZO1X-1(11) compression (needs only 8kB work memory)
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo_conf.h"
#if 1 && defined(UA_GET_LE32)
#undef LZO_DICT_USE_PTR
#define LZO_DICT_USE_PTR 0
#undef lzo_dict_t
#define lzo_dict_t lzo_uint16_t
#endif
#define LZO_NEED_DICT_H 1
#ifndef D_BITS
#define D_BITS 11
#endif
#define D_INDEX1(d,p) d = DM(DMUL(0x21,DX2(p,3,5)) >> 5)
#define D_INDEX2(d,p) d = d ^ D_MASK
#if 1
#define DINDEX(dv,p) DM(((DMUL(0x1824429d,dv)) >> (32-D_BITS)))
#else
#define DINDEX(dv,p) DM((dv) + ((dv) >> (32-D_BITS)))
#endif
#include "config1x.h"
#define LZO_DETERMINISTIC !(LZO_DICT_USE_PTR)
#ifndef DO_COMPRESS
#define DO_COMPRESS lzo1x_1_11_compress
#endif
#include "lzo1x_c.ch"
/* vim:set ts=4 sw=4 et: */

57
extern/lzo/src/lzo1x_1l.c vendored Normal file
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/* lzo1x_1l.c -- LZO1X-1(12) compression
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo_conf.h"
#if 1 && defined(UA_GET_LE32)
#undef LZO_DICT_USE_PTR
#define LZO_DICT_USE_PTR 0
#undef lzo_dict_t
#define lzo_dict_t lzo_uint16_t
#endif
#define LZO_NEED_DICT_H 1
#ifndef D_BITS
#define D_BITS 12
#endif
#define D_INDEX1(d,p) d = DM(DMUL(0x21,DX2(p,4,5)) >> 5)
#define D_INDEX2(d,p) d = d ^ D_MASK
#if 1
#define DINDEX(dv,p) DM(((DMUL(0x1824429d,dv)) >> (32-D_BITS)))
#else
#define DINDEX(dv,p) DM((dv) + ((dv) >> (32-D_BITS)))
#endif
#include "config1x.h"
#define LZO_DETERMINISTIC !(LZO_DICT_USE_PTR)
#ifndef DO_COMPRESS
#define DO_COMPRESS lzo1x_1_12_compress
#endif
#include "lzo1x_c.ch"
/* vim:set ts=4 sw=4 et: */

58
extern/lzo/src/lzo1x_1o.c vendored Normal file
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/* lzo1x_1o.c -- LZO1X-1(15) compression
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo_conf.h"
#if 1 && defined(UA_GET_LE32)
#undef LZO_DICT_USE_PTR
#define LZO_DICT_USE_PTR 0
#undef lzo_dict_t
#define lzo_dict_t lzo_uint16_t
#define D_BITS 13
#endif
#define LZO_NEED_DICT_H 1
#ifndef D_BITS
#define D_BITS 15
#endif
#define D_INDEX1(d,p) d = DM(DMUL(0x21,DX3(p,5,5,6)) >> 5)
#define D_INDEX2(d,p) d = (d & (D_MASK & 0x7ff)) ^ (D_HIGH | 0x1f)
#if 1
#define DINDEX(dv,p) DM(((DMUL(0x1824429d,dv)) >> (32-D_BITS)))
#else
#define DINDEX(dv,p) DM((dv) + ((dv) >> (32-D_BITS)))
#endif
#include "config1x.h"
#define LZO_DETERMINISTIC !(LZO_DICT_USE_PTR)
#ifndef DO_COMPRESS
#define DO_COMPRESS lzo1x_1_15_compress
#endif
#include "lzo1x_c.ch"
/* vim:set ts=4 sw=4 et: */

867
extern/lzo/src/lzo1x_9x.c vendored Normal file
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/* lzo1x_9x.c -- implementation of the LZO1X-999 compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#if !defined(LZO1X) && !defined(LZO1Y) && !defined(LZO1Z)
# define LZO1X 1
#endif
#if defined(LZO1X)
# include "config1x.h"
#elif defined(LZO1Y)
# include "config1y.h"
#elif defined(LZO1Z)
# include "config1z.h"
#else
# error
#endif
/***********************************************************************
//
************************************************************************/
#define SWD_N M4_MAX_OFFSET /* size of ring buffer */
#define SWD_THRESHOLD 1 /* lower limit for match length */
#define SWD_F 2048 /* upper limit for match length */
#define SWD_BEST_OFF (LZO_MAX3( M2_MAX_LEN, M3_MAX_LEN, M4_MAX_LEN ) + 1)
#if defined(LZO1X)
# define LZO_COMPRESS_T lzo1x_999_t
# define lzo_swd_t lzo1x_999_swd_t
#elif defined(LZO1Y)
# define LZO_COMPRESS_T lzo1y_999_t
# define lzo_swd_t lzo1y_999_swd_t
# define lzo1x_999_compress_internal lzo1y_999_compress_internal
# define lzo1x_999_compress_dict lzo1y_999_compress_dict
# define lzo1x_999_compress_level lzo1y_999_compress_level
# define lzo1x_999_compress lzo1y_999_compress
#elif defined(LZO1Z)
# define LZO_COMPRESS_T lzo1z_999_t
# define lzo_swd_t lzo1z_999_swd_t
# define lzo1x_999_compress_internal lzo1z_999_compress_internal
# define lzo1x_999_compress_dict lzo1z_999_compress_dict
# define lzo1x_999_compress_level lzo1z_999_compress_level
# define lzo1x_999_compress lzo1z_999_compress
#else
# error
#endif
#if 0
# define HEAD3(b,p) \
((((((lzo_xint)b[p]<<3)^b[p+1])<<3)^b[p+2]) & (SWD_HSIZE-1))
#endif
#if 0 && (LZO_OPT_UNALIGNED32) && (LZO_ABI_LITTLE_ENDIAN)
# define HEAD3(b,p) \
(((* (lzo_uint32_tp) &b[p]) ^ ((* (lzo_uint32_tp) &b[p])>>10)) & (SWD_HSIZE-1))
#endif
#include "lzo_mchw.ch"
/* this is a public functions, but there is no prototype in a header file */
LZO_EXTERN(int)
lzo1x_999_compress_internal ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len,
lzo_callback_p cb,
int try_lazy_parm,
lzo_uint good_length,
lzo_uint max_lazy,
lzo_uint nice_length,
lzo_uint max_chain,
lzo_uint32_t flags );
/***********************************************************************
//
************************************************************************/
static lzo_bytep
code_match ( LZO_COMPRESS_T *c, lzo_bytep op, lzo_uint m_len, lzo_uint m_off )
{
lzo_uint x_len = m_len;
lzo_uint x_off = m_off;
c->match_bytes += m_len;
#if 0
/*
static lzo_uint last_m_len = 0, last_m_off = 0;
static lzo_uint prev_m_off[4];
static unsigned prev_m_off_ptr = 0;
unsigned i;
//if (m_len >= 3 && m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET)
if (m_len >= 3 && m_len <= M2_MAX_LEN)
{
//if (m_len == last_m_len && m_off == last_m_off)
//printf("last_m_len + last_m_off\n");
//else
if (m_off == last_m_off)
printf("last_m_off\n");
else
{
for (i = 0; i < 4; i++)
if (m_off == prev_m_off[i])
printf("prev_m_off %u: %5ld\n",i,(long)m_off);
}
}
last_m_len = m_len;
last_m_off = prev_m_off[prev_m_off_ptr] = m_off;
prev_m_off_ptr = (prev_m_off_ptr + 1) & 3;
*/
#endif
assert(op > c->out);
if (m_len == 2)
{
assert(m_off <= M1_MAX_OFFSET);
assert(c->r1_lit > 0); assert(c->r1_lit < 4);
m_off -= 1;
#if defined(LZO1Z)
*op++ = LZO_BYTE(M1_MARKER | (m_off >> 6));
*op++ = LZO_BYTE(m_off << 2);
#else
*op++ = LZO_BYTE(M1_MARKER | ((m_off & 3) << 2));
*op++ = LZO_BYTE(m_off >> 2);
#endif
c->m1a_m++;
}
#if defined(LZO1Z)
else if (m_len <= M2_MAX_LEN && (m_off <= M2_MAX_OFFSET || m_off == c->last_m_off))
#else
else if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET)
#endif
{
assert(m_len >= 3);
#if defined(LZO1X)
m_off -= 1;
*op++ = LZO_BYTE(((m_len - 1) << 5) | ((m_off & 7) << 2));
*op++ = LZO_BYTE(m_off >> 3);
assert(op[-2] >= M2_MARKER);
#elif defined(LZO1Y)
m_off -= 1;
*op++ = LZO_BYTE(((m_len + 1) << 4) | ((m_off & 3) << 2));
*op++ = LZO_BYTE(m_off >> 2);
assert(op[-2] >= M2_MARKER);
#elif defined(LZO1Z)
if (m_off == c->last_m_off)
*op++ = LZO_BYTE(((m_len - 1) << 5) | (0x700 >> 6));
else
{
m_off -= 1;
*op++ = LZO_BYTE(((m_len - 1) << 5) | (m_off >> 6));
*op++ = LZO_BYTE(m_off << 2);
}
#endif
c->m2_m++;
}
else if (m_len == M2_MIN_LEN && m_off <= MX_MAX_OFFSET && c->r1_lit >= 4)
{
assert(m_len == 3);
assert(m_off > M2_MAX_OFFSET);
m_off -= 1 + M2_MAX_OFFSET;
#if defined(LZO1Z)
*op++ = LZO_BYTE(M1_MARKER | (m_off >> 6));
*op++ = LZO_BYTE(m_off << 2);
#else
*op++ = LZO_BYTE(M1_MARKER | ((m_off & 3) << 2));
*op++ = LZO_BYTE(m_off >> 2);
#endif
c->m1b_m++;
}
else if (m_off <= M3_MAX_OFFSET)
{
assert(m_len >= 3);
m_off -= 1;
if (m_len <= M3_MAX_LEN)
*op++ = LZO_BYTE(M3_MARKER | (m_len - 2));
else
{
m_len -= M3_MAX_LEN;
*op++ = M3_MARKER | 0;
while (m_len > 255)
{
m_len -= 255;
*op++ = 0;
}
assert(m_len > 0);
*op++ = LZO_BYTE(m_len);
}
#if defined(LZO1Z)
*op++ = LZO_BYTE(m_off >> 6);
*op++ = LZO_BYTE(m_off << 2);
#else
*op++ = LZO_BYTE(m_off << 2);
*op++ = LZO_BYTE(m_off >> 6);
#endif
c->m3_m++;
}
else
{
lzo_uint k;
assert(m_len >= 3);
assert(m_off > 0x4000); assert(m_off <= 0xbfff);
m_off -= 0x4000;
k = (m_off & 0x4000) >> 11;
if (m_len <= M4_MAX_LEN)
*op++ = LZO_BYTE(M4_MARKER | k | (m_len - 2));
else
{
m_len -= M4_MAX_LEN;
*op++ = LZO_BYTE(M4_MARKER | k | 0);
while (m_len > 255)
{
m_len -= 255;
*op++ = 0;
}
assert(m_len > 0);
*op++ = LZO_BYTE(m_len);
}
#if defined(LZO1Z)
*op++ = LZO_BYTE(m_off >> 6);
*op++ = LZO_BYTE(m_off << 2);
#else
*op++ = LZO_BYTE(m_off << 2);
*op++ = LZO_BYTE(m_off >> 6);
#endif
c->m4_m++;
}
c->last_m_len = x_len;
c->last_m_off = x_off;
return op;
}
static lzo_bytep
STORE_RUN ( LZO_COMPRESS_T *c, lzo_bytep op, const lzo_bytep ii, lzo_uint t )
{
c->lit_bytes += t;
if (op == c->out && t <= 238)
{
*op++ = LZO_BYTE(17 + t);
}
else if (t <= 3)
{
#if defined(LZO1Z)
op[-1] = LZO_BYTE(op[-1] | t);
#else
op[-2] = LZO_BYTE(op[-2] | t);
#endif
c->lit1_r++;
}
else if (t <= 18)
{
*op++ = LZO_BYTE(t - 3);
c->lit2_r++;
}
else
{
lzo_uint tt = t - 18;
*op++ = 0;
while (tt > 255)
{
tt -= 255;
*op++ = 0;
}
assert(tt > 0);
*op++ = LZO_BYTE(tt);
c->lit3_r++;
}
do *op++ = *ii++; while (--t > 0);
return op;
}
static lzo_bytep
code_run ( LZO_COMPRESS_T *c, lzo_bytep op, const lzo_bytep ii,
lzo_uint lit, lzo_uint m_len )
{
if (lit > 0)
{
assert(m_len >= 2);
op = STORE_RUN(c,op,ii,lit);
c->r1_m_len = m_len;
c->r1_lit = lit;
}
else
{
assert(m_len >= 3);
c->r1_m_len = 0;
c->r1_lit = 0;
}
return op;
}
/***********************************************************************
//
************************************************************************/
static lzo_uint
len_of_coded_match ( lzo_uint m_len, lzo_uint m_off, lzo_uint lit )
{
lzo_uint n = 4;
if (m_len < 2)
return 0;
if (m_len == 2)
return (m_off <= M1_MAX_OFFSET && lit > 0 && lit < 4) ? 2 : 0;
if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET)
return 2;
if (m_len == M2_MIN_LEN && m_off <= MX_MAX_OFFSET && lit >= 4)
return 2;
if (m_off <= M3_MAX_OFFSET)
{
if (m_len <= M3_MAX_LEN)
return 3;
m_len -= M3_MAX_LEN;
while (m_len > 255)
{
m_len -= 255;
n++;
}
return n;
}
if (m_off <= M4_MAX_OFFSET)
{
if (m_len <= M4_MAX_LEN)
return 3;
m_len -= M4_MAX_LEN;
while (m_len > 255)
{
m_len -= 255;
n++;
}
return n;
}
return 0;
}
static lzo_uint
min_gain(lzo_uint ahead, lzo_uint lit1, lzo_uint lit2, lzo_uint l1, lzo_uint l2, lzo_uint l3)
{
lzo_uint lazy_match_min_gain;
assert (ahead >= 1);
lazy_match_min_gain = ahead;
#if 0
if (l3)
lit2 -= ahead;
#endif
if (lit1 <= 3)
lazy_match_min_gain += (lit2 <= 3) ? 0 : 2;
else if (lit1 <= 18)
lazy_match_min_gain += (lit2 <= 18) ? 0 : 1;
lazy_match_min_gain += (l2 - l1) * 2;
if (l3)
lazy_match_min_gain -= (ahead - l3) * 2;
if ((lzo_int) lazy_match_min_gain < 0)
lazy_match_min_gain = 0;
#if 0
if (l1 == 2)
if (lazy_match_min_gain == 0)
lazy_match_min_gain = 1;
#endif
return lazy_match_min_gain;
}
/***********************************************************************
//
************************************************************************/
#if !defined(NDEBUG)
static
void assert_match( const lzo_swd_p swd, lzo_uint m_len, lzo_uint m_off )
{
const LZO_COMPRESS_T *c = swd->c;
lzo_uint d_off;
assert(m_len >= 2);
if (m_off <= (lzo_uint) (c->bp - c->in))
{
assert(c->bp - m_off + m_len < c->ip);
assert(lzo_memcmp(c->bp, c->bp - m_off, m_len) == 0);
}
else
{
assert(swd->dict != NULL);
d_off = m_off - (lzo_uint) (c->bp - c->in);
assert(d_off <= swd->dict_len);
if (m_len > d_off)
{
assert(lzo_memcmp(c->bp, swd->dict_end - d_off, d_off) == 0);
assert(c->in + m_len - d_off < c->ip);
assert(lzo_memcmp(c->bp + d_off, c->in, m_len - d_off) == 0);
}
else
{
assert(lzo_memcmp(c->bp, swd->dict_end - d_off, m_len) == 0);
}
}
}
#else
# define assert_match(a,b,c) ((void)0)
#endif
#if defined(SWD_BEST_OFF)
static void
better_match ( const lzo_swd_p swd, lzo_uint *m_len, lzo_uint *m_off )
{
#if defined(LZO1Z)
const LZO_COMPRESS_T *c = swd->c;
#endif
if (*m_len <= M2_MIN_LEN)
return;
#if defined(LZO1Z)
if (*m_off == c->last_m_off && *m_len <= M2_MAX_LEN)
return;
#if 1
if (*m_len >= M2_MIN_LEN + 1 && *m_len <= M2_MAX_LEN + 1 &&
c->last_m_off && swd->best_off[*m_len-1] == c->last_m_off)
{
*m_len = *m_len - 1;
*m_off = swd->best_off[*m_len];
return;
}
#endif
#endif
if (*m_off <= M2_MAX_OFFSET)
return;
#if 1
/* M3/M4 -> M2 */
if (*m_off > M2_MAX_OFFSET &&
*m_len >= M2_MIN_LEN + 1 && *m_len <= M2_MAX_LEN + 1 &&
swd->best_off[*m_len-1] && swd->best_off[*m_len-1] <= M2_MAX_OFFSET)
{
*m_len = *m_len - 1;
*m_off = swd->best_off[*m_len];
return;
}
#endif
#if 1
/* M4 -> M2 */
if (*m_off > M3_MAX_OFFSET &&
*m_len >= M4_MAX_LEN + 1 && *m_len <= M2_MAX_LEN + 2 &&
swd->best_off[*m_len-2] && swd->best_off[*m_len-2] <= M2_MAX_OFFSET)
{
*m_len = *m_len - 2;
*m_off = swd->best_off[*m_len];
return;
}
#endif
#if 1
/* M4 -> M3 */
if (*m_off > M3_MAX_OFFSET &&
*m_len >= M4_MAX_LEN + 1 && *m_len <= M3_MAX_LEN + 1 &&
swd->best_off[*m_len-1] && swd->best_off[*m_len-1] <= M3_MAX_OFFSET)
{
*m_len = *m_len - 1;
*m_off = swd->best_off[*m_len];
}
#endif
}
#endif
/***********************************************************************
//
************************************************************************/
LZO_PUBLIC(int)
lzo1x_999_compress_internal ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len,
lzo_callback_p cb,
int try_lazy_parm,
lzo_uint good_length,
lzo_uint max_lazy,
lzo_uint nice_length,
lzo_uint max_chain,
lzo_uint32_t flags )
{
lzo_bytep op;
const lzo_bytep ii;
lzo_uint lit;
lzo_uint m_len, m_off;
LZO_COMPRESS_T cc;
LZO_COMPRESS_T * const c = &cc;
lzo_swd_p const swd = (lzo_swd_p) wrkmem;
lzo_uint try_lazy;
int r;
/* sanity check */
#if defined(LZO1X)
LZO_COMPILE_TIME_ASSERT(LZO1X_999_MEM_COMPRESS >= SIZEOF_LZO_SWD_T)
#elif defined(LZO1Y)
LZO_COMPILE_TIME_ASSERT(LZO1Y_999_MEM_COMPRESS >= SIZEOF_LZO_SWD_T)
#elif defined(LZO1Z)
LZO_COMPILE_TIME_ASSERT(LZO1Z_999_MEM_COMPRESS >= SIZEOF_LZO_SWD_T)
#else
# error
#endif
/* setup parameter defaults */
/* number of lazy match tries */
try_lazy = (lzo_uint) try_lazy_parm;
if (try_lazy_parm < 0)
try_lazy = 1;
/* reduce lazy match search if we already have a match with this length */
if (good_length == 0)
good_length = 32;
/* do not try a lazy match if we already have a match with this length */
if (max_lazy == 0)
max_lazy = 32;
/* stop searching for longer matches than this one */
if (nice_length == 0)
nice_length = 0;
/* don't search more positions than this */
if (max_chain == 0)
max_chain = SWD_MAX_CHAIN;
c->init = 0;
c->ip = c->in = in;
c->in_end = in + in_len;
c->out = out;
c->cb = cb;
c->m1a_m = c->m1b_m = c->m2_m = c->m3_m = c->m4_m = 0;
c->lit1_r = c->lit2_r = c->lit3_r = 0;
op = out;
ii = c->ip; /* point to start of literal run */
lit = 0;
c->r1_lit = c->r1_m_len = 0;
r = init_match(c,swd,dict,dict_len,flags);
if (r != 0)
return r;
if (max_chain > 0)
swd->max_chain = max_chain;
if (nice_length > 0)
swd->nice_length = nice_length;
r = find_match(c,swd,0,0);
if (r != 0)
return r;
while (c->look > 0)
{
lzo_uint ahead;
lzo_uint max_ahead;
lzo_uint l1, l2, l3;
c->codesize = pd(op, out);
m_len = c->m_len;
m_off = c->m_off;
assert(c->bp == c->ip - c->look);
assert(c->bp >= in);
if (lit == 0)
ii = c->bp;
assert(ii + lit == c->bp);
assert(swd->b_char == *(c->bp));
if ( m_len < 2 ||
(m_len == 2 && (m_off > M1_MAX_OFFSET || lit == 0 || lit >= 4)) ||
#if 1
/* Do not accept this match for compressed-data compatibility
* with LZO v1.01 and before
* [ might be a problem for decompress() and optimize() ]
*/
(m_len == 2 && op == out) ||
#endif
(op == out && lit == 0))
{
/* a literal */
m_len = 0;
}
else if (m_len == M2_MIN_LEN)
{
/* compression ratio improves if we code a literal in some cases */
if (m_off > MX_MAX_OFFSET && lit >= 4)
m_len = 0;
}
if (m_len == 0)
{
/* a literal */
lit++;
swd->max_chain = max_chain;
r = find_match(c,swd,1,0);
assert(r == 0); LZO_UNUSED(r);
continue;
}
/* a match */
#if defined(SWD_BEST_OFF)
if (swd->use_best_off)
better_match(swd,&m_len,&m_off);
#endif
assert_match(swd,m_len,m_off);
/* shall we try a lazy match ? */
ahead = 0;
if (try_lazy == 0 || m_len >= max_lazy)
{
/* no */
l1 = 0;
max_ahead = 0;
}
else
{
/* yes, try a lazy match */
l1 = len_of_coded_match(m_len,m_off,lit);
assert(l1 > 0);
#if 1
max_ahead = LZO_MIN(try_lazy, l1 - 1);
#else
max_ahead = LZO_MIN3(try_lazy, l1, m_len - 1);
#endif
}
while (ahead < max_ahead && c->look > m_len)
{
lzo_uint lazy_match_min_gain;
if (m_len >= good_length)
swd->max_chain = max_chain >> 2;
else
swd->max_chain = max_chain;
r = find_match(c,swd,1,0);
ahead++;
assert(r == 0); LZO_UNUSED(r);
assert(c->look > 0);
assert(ii + lit + ahead == c->bp);
#if defined(LZO1Z)
if (m_off == c->last_m_off && c->m_off != c->last_m_off)
if (m_len >= M2_MIN_LEN && m_len <= M2_MAX_LEN)
c->m_len = 0;
#endif
if (c->m_len < m_len)
continue;
#if 1
if (c->m_len == m_len && c->m_off >= m_off)
continue;
#endif
#if defined(SWD_BEST_OFF)
if (swd->use_best_off)
better_match(swd,&c->m_len,&c->m_off);
#endif
l2 = len_of_coded_match(c->m_len,c->m_off,lit+ahead);
if (l2 == 0)
continue;
#if 0
if (c->m_len == m_len && l2 >= l1)
continue;
#endif
#if 1
/* compressed-data compatibility [see above] */
l3 = (op == out) ? 0 : len_of_coded_match(ahead,m_off,lit);
#else
l3 = len_of_coded_match(ahead,m_off,lit);
#endif
lazy_match_min_gain = min_gain(ahead,lit,lit+ahead,l1,l2,l3);
if (c->m_len >= m_len + lazy_match_min_gain)
{
c->lazy++;
assert_match(swd,c->m_len,c->m_off);
if (l3)
{
/* code previous run */
op = code_run(c,op,ii,lit,ahead);
lit = 0;
/* code shortened match */
op = code_match(c,op,ahead,m_off);
}
else
{
lit += ahead;
assert(ii + lit == c->bp);
}
goto lazy_match_done;
}
}
assert(ii + lit + ahead == c->bp);
/* 1 - code run */
op = code_run(c,op,ii,lit,m_len);
lit = 0;
/* 2 - code match */
op = code_match(c,op,m_len,m_off);
swd->max_chain = max_chain;
r = find_match(c,swd,m_len,1+ahead);
assert(r == 0); LZO_UNUSED(r);
lazy_match_done: ;
}
/* store final run */
if (lit > 0)
op = STORE_RUN(c,op,ii,lit);
#if defined(LZO_EOF_CODE)
*op++ = M4_MARKER | 1;
*op++ = 0;
*op++ = 0;
#endif
c->codesize = pd(op, out);
assert(c->textsize == in_len);
*out_len = pd(op, out);
if (c->cb && c->cb->nprogress)
(*c->cb->nprogress)(c->cb, c->textsize, c->codesize, 0);
#if 0
printf("%ld %ld -> %ld %ld: %ld %ld %ld %ld %ld %ld: %ld %ld %ld %ld\n",
(long) c->textsize, (long) in_len, (long) c->codesize,
c->match_bytes, c->m1a_m, c->m1b_m, c->m2_m, c->m3_m, c->m4_m,
c->lit_bytes, c->lit1_r, c->lit2_r, c->lit3_r, c->lazy);
#endif
assert(c->lit_bytes + c->match_bytes == in_len);
return LZO_E_OK;
}
/***********************************************************************
//
************************************************************************/
LZO_PUBLIC(int)
lzo1x_999_compress_level ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len,
lzo_callback_p cb,
int compression_level )
{
static const struct
{
int try_lazy_parm;
lzo_uint good_length;
lzo_uint max_lazy;
lzo_uint nice_length;
lzo_uint max_chain;
lzo_uint32_t flags;
} c[9] = {
/* faster compression */
{ 0, 0, 0, 8, 4, 0 },
{ 0, 0, 0, 16, 8, 0 },
{ 0, 0, 0, 32, 16, 0 },
{ 1, 4, 4, 16, 16, 0 },
{ 1, 8, 16, 32, 32, 0 },
{ 1, 8, 16, 128, 128, 0 },
{ 2, 8, 32, 128, 256, 0 },
{ 2, 32, 128, SWD_F, 2048, 1 },
{ 2, SWD_F, SWD_F, SWD_F, 4096, 1 }
/* max. compression */
};
if (compression_level < 1 || compression_level > 9)
return LZO_E_ERROR;
compression_level -= 1;
return lzo1x_999_compress_internal(in, in_len, out, out_len, wrkmem,
dict, dict_len, cb,
c[compression_level].try_lazy_parm,
c[compression_level].good_length,
c[compression_level].max_lazy,
#if 0
c[compression_level].nice_length,
#else
0,
#endif
c[compression_level].max_chain,
c[compression_level].flags);
}
/***********************************************************************
//
************************************************************************/
LZO_PUBLIC(int)
lzo1x_999_compress_dict ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem,
const lzo_bytep dict, lzo_uint dict_len )
{
return lzo1x_999_compress_level(in, in_len, out, out_len, wrkmem,
dict, dict_len, 0, 8);
}
LZO_PUBLIC(int)
lzo1x_999_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
return lzo1x_999_compress_level(in, in_len, out, out_len, wrkmem,
NULL, 0, (lzo_callback_p) 0, 8);
}
/* vim:set ts=4 sw=4 et: */

403
extern/lzo/src/lzo1x_c.ch vendored Normal file
View File

@ -0,0 +1,403 @@
/* lzo1x_c.ch -- implementation of the LZO1[XY]-1 compression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#if 1 && defined(DO_COMPRESS) && !defined(do_compress)
/* choose a unique name to better help PGO optimizations */
# define do_compress LZO_PP_ECONCAT2(DO_COMPRESS,_core)
#endif
/***********************************************************************
// compress a block of data.
************************************************************************/
static __lzo_noinline lzo_uint
do_compress ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_uint ti, lzo_voidp wrkmem)
{
const lzo_bytep ip;
lzo_bytep op;
const lzo_bytep const in_end = in + in_len;
const lzo_bytep const ip_end = in + in_len - 20;
const lzo_bytep ii;
lzo_dict_p const dict = (lzo_dict_p) wrkmem;
op = out;
ip = in;
ii = ip;
ip += ti < 4 ? 4 - ti : 0;
for (;;)
{
const lzo_bytep m_pos;
#if !(LZO_DETERMINISTIC)
LZO_DEFINE_UNINITIALIZED_VAR(lzo_uint, m_off, 0);
lzo_uint m_len;
lzo_uint dindex;
next:
if __lzo_unlikely(ip >= ip_end)
break;
DINDEX1(dindex,ip);
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,M4_MAX_OFFSET))
goto literal;
#if 1
if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
goto try_match;
DINDEX2(dindex,ip);
#endif
GINDEX(m_pos,m_off,dict,dindex,in);
if (LZO_CHECK_MPOS_NON_DET(m_pos,m_off,in,ip,M4_MAX_OFFSET))
goto literal;
if (m_off <= M2_MAX_OFFSET || m_pos[3] == ip[3])
goto try_match;
goto literal;
try_match:
#if (LZO_OPT_UNALIGNED32)
if (UA_GET_NE32(m_pos) != UA_GET_NE32(ip))
#else
if (m_pos[0] != ip[0] || m_pos[1] != ip[1] || m_pos[2] != ip[2] || m_pos[3] != ip[3])
#endif
{
/* a literal */
literal:
UPDATE_I(dict,0,dindex,ip,in);
ip += 1 + ((ip - ii) >> 5);
continue;
}
/*match:*/
UPDATE_I(dict,0,dindex,ip,in);
#else
lzo_uint m_off;
lzo_uint m_len;
{
lzo_uint32_t dv;
lzo_uint dindex;
literal:
ip += 1 + ((ip - ii) >> 5);
next:
if __lzo_unlikely(ip >= ip_end)
break;
dv = UA_GET_LE32(ip);
dindex = DINDEX(dv,ip);
GINDEX(m_off,m_pos,in+dict,dindex,in);
UPDATE_I(dict,0,dindex,ip,in);
if __lzo_unlikely(dv != UA_GET_LE32(m_pos))
goto literal;
}
#endif
/* a match */
ii -= ti; ti = 0;
{
lzo_uint t = pd(ip,ii);
if (t != 0)
{
if (t <= 3)
{
op[-2] = LZO_BYTE(op[-2] | t);
#if (LZO_OPT_UNALIGNED32)
UA_COPY4(op, ii);
op += t;
#else
{ do *op++ = *ii++; while (--t > 0); }
#endif
}
#if (LZO_OPT_UNALIGNED32) || (LZO_OPT_UNALIGNED64)
else if (t <= 16)
{
*op++ = LZO_BYTE(t - 3);
UA_COPY8(op, ii);
UA_COPY8(op+8, ii+8);
op += t;
}
#endif
else
{
if (t <= 18)
*op++ = LZO_BYTE(t - 3);
else
{
lzo_uint tt = t - 18;
*op++ = 0;
while __lzo_unlikely(tt > 255)
{
tt -= 255;
UA_SET1(op, 0);
op++;
}
assert(tt > 0);
*op++ = LZO_BYTE(tt);
}
#if (LZO_OPT_UNALIGNED32) || (LZO_OPT_UNALIGNED64)
do {
UA_COPY8(op, ii);
UA_COPY8(op+8, ii+8);
op += 16; ii += 16; t -= 16;
} while (t >= 16); if (t > 0)
#endif
{ do *op++ = *ii++; while (--t > 0); }
}
}
}
m_len = 4;
{
#if (LZO_OPT_UNALIGNED64)
lzo_uint64_t v;
v = UA_GET_NE64(ip + m_len) ^ UA_GET_NE64(m_pos + m_len);
if __lzo_unlikely(v == 0) {
do {
m_len += 8;
v = UA_GET_NE64(ip + m_len) ^ UA_GET_NE64(m_pos + m_len);
if __lzo_unlikely(ip + m_len >= ip_end)
goto m_len_done;
} while (v == 0);
}
#if (LZO_ABI_BIG_ENDIAN) && defined(lzo_bitops_ctlz64)
m_len += lzo_bitops_ctlz64(v) / CHAR_BIT;
#elif (LZO_ABI_BIG_ENDIAN)
if ((v >> (64 - CHAR_BIT)) == 0) do {
v <<= CHAR_BIT;
m_len += 1;
} while ((v >> (64 - CHAR_BIT)) == 0);
#elif (LZO_ABI_LITTLE_ENDIAN) && defined(lzo_bitops_cttz64)
m_len += lzo_bitops_cttz64(v) / CHAR_BIT;
#elif (LZO_ABI_LITTLE_ENDIAN)
if ((v & UCHAR_MAX) == 0) do {
v >>= CHAR_BIT;
m_len += 1;
} while ((v & UCHAR_MAX) == 0);
#else
if (ip[m_len] == m_pos[m_len]) do {
m_len += 1;
} while (ip[m_len] == m_pos[m_len]);
#endif
#elif (LZO_OPT_UNALIGNED32)
lzo_uint32_t v;
v = UA_GET_NE32(ip + m_len) ^ UA_GET_NE32(m_pos + m_len);
if __lzo_unlikely(v == 0) {
do {
m_len += 4;
v = UA_GET_NE32(ip + m_len) ^ UA_GET_NE32(m_pos + m_len);
if (v != 0)
break;
m_len += 4;
v = UA_GET_NE32(ip + m_len) ^ UA_GET_NE32(m_pos + m_len);
if __lzo_unlikely(ip + m_len >= ip_end)
goto m_len_done;
} while (v == 0);
}
#if (LZO_ABI_BIG_ENDIAN) && defined(lzo_bitops_ctlz32)
m_len += lzo_bitops_ctlz32(v) / CHAR_BIT;
#elif (LZO_ABI_BIG_ENDIAN)
if ((v >> (32 - CHAR_BIT)) == 0) do {
v <<= CHAR_BIT;
m_len += 1;
} while ((v >> (32 - CHAR_BIT)) == 0);
#elif (LZO_ABI_LITTLE_ENDIAN) && defined(lzo_bitops_cttz32)
m_len += lzo_bitops_cttz32(v) / CHAR_BIT;
#elif (LZO_ABI_LITTLE_ENDIAN)
if ((v & UCHAR_MAX) == 0) do {
v >>= CHAR_BIT;
m_len += 1;
} while ((v & UCHAR_MAX) == 0);
#else
if (ip[m_len] == m_pos[m_len]) do {
m_len += 1;
} while (ip[m_len] == m_pos[m_len]);
#endif
#else
if __lzo_unlikely(ip[m_len] == m_pos[m_len]) {
do {
m_len += 1;
if (ip[m_len] != m_pos[m_len])
break;
m_len += 1;
if (ip[m_len] != m_pos[m_len])
break;
m_len += 1;
if (ip[m_len] != m_pos[m_len])
break;
m_len += 1;
if (ip[m_len] != m_pos[m_len])
break;
m_len += 1;
if (ip[m_len] != m_pos[m_len])
break;
m_len += 1;
if (ip[m_len] != m_pos[m_len])
break;
m_len += 1;
if (ip[m_len] != m_pos[m_len])
break;
m_len += 1;
if __lzo_unlikely(ip + m_len >= ip_end)
goto m_len_done;
} while (ip[m_len] == m_pos[m_len]);
}
#endif
}
m_len_done:
m_off = pd(ip,m_pos);
ip += m_len;
ii = ip;
if (m_len <= M2_MAX_LEN && m_off <= M2_MAX_OFFSET)
{
m_off -= 1;
#if defined(LZO1X)
*op++ = LZO_BYTE(((m_len - 1) << 5) | ((m_off & 7) << 2));
*op++ = LZO_BYTE(m_off >> 3);
#elif defined(LZO1Y)
*op++ = LZO_BYTE(((m_len + 1) << 4) | ((m_off & 3) << 2));
*op++ = LZO_BYTE(m_off >> 2);
#endif
}
else if (m_off <= M3_MAX_OFFSET)
{
m_off -= 1;
if (m_len <= M3_MAX_LEN)
*op++ = LZO_BYTE(M3_MARKER | (m_len - 2));
else
{
m_len -= M3_MAX_LEN;
*op++ = M3_MARKER | 0;
while __lzo_unlikely(m_len > 255)
{
m_len -= 255;
UA_SET1(op, 0);
op++;
}
*op++ = LZO_BYTE(m_len);
}
*op++ = LZO_BYTE(m_off << 2);
*op++ = LZO_BYTE(m_off >> 6);
}
else
{
m_off -= 0x4000;
if (m_len <= M4_MAX_LEN)
*op++ = LZO_BYTE(M4_MARKER | ((m_off >> 11) & 8) | (m_len - 2));
else
{
m_len -= M4_MAX_LEN;
*op++ = LZO_BYTE(M4_MARKER | ((m_off >> 11) & 8));
while __lzo_unlikely(m_len > 255)
{
m_len -= 255;
UA_SET1(op, 0);
op++;
}
*op++ = LZO_BYTE(m_len);
}
*op++ = LZO_BYTE(m_off << 2);
*op++ = LZO_BYTE(m_off >> 6);
}
goto next;
}
*out_len = pd(op, out);
return pd(in_end,ii-ti);
}
/***********************************************************************
// public entry point
************************************************************************/
LZO_PUBLIC(int)
DO_COMPRESS ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
{
const lzo_bytep ip = in;
lzo_bytep op = out;
lzo_uint l = in_len;
lzo_uint t = 0;
while (l > 20)
{
lzo_uint ll = l;
lzo_uintptr_t ll_end;
#if 0 || (LZO_DETERMINISTIC)
ll = LZO_MIN(ll, 49152);
#endif
ll_end = (lzo_uintptr_t)ip + ll;
if ((ll_end + ((t + ll) >> 5)) <= ll_end || (const lzo_bytep)(ll_end + ((t + ll) >> 5)) <= ip + ll)
break;
#if (LZO_DETERMINISTIC)
lzo_memset(wrkmem, 0, ((lzo_uint)1 << D_BITS) * sizeof(lzo_dict_t));
#endif
t = do_compress(ip,ll,op,out_len,t,wrkmem);
ip += ll;
op += *out_len;
l -= ll;
}
t += l;
if (t > 0)
{
const lzo_bytep ii = in + in_len - t;
if (op == out && t <= 238)
*op++ = LZO_BYTE(17 + t);
else if (t <= 3)
op[-2] = LZO_BYTE(op[-2] | t);
else if (t <= 18)
*op++ = LZO_BYTE(t - 3);
else
{
lzo_uint tt = t - 18;
*op++ = 0;
while (tt > 255)
{
tt -= 255;
UA_SET1(op, 0);
op++;
}
assert(tt > 0);
*op++ = LZO_BYTE(tt);
}
UA_COPYN(op, ii, t);
op += t;
}
*op++ = M4_MARKER | 1;
*op++ = 0;
*op++ = 0;
*out_len = pd(op, out);
return LZO_E_OK;
}
/* vim:set ts=4 sw=4 et: */

475
extern/lzo/src/lzo1x_d.ch vendored Normal file
View File

@ -0,0 +1,475 @@
/* lzo1x_d.ch -- implementation of the LZO1X decompression algorithm
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "lzo1_d.ch"
/***********************************************************************
// decompress a block of data.
************************************************************************/
#if defined(DO_DECOMPRESS)
LZO_PUBLIC(int)
DO_DECOMPRESS ( const lzo_bytep in , lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem )
#endif
{
lzo_bytep op;
const lzo_bytep ip;
lzo_uint t;
#if defined(COPY_DICT)
lzo_uint m_off;
const lzo_bytep dict_end;
#else
const lzo_bytep m_pos;
#endif
const lzo_bytep const ip_end = in + in_len;
#if defined(HAVE_ANY_OP)
lzo_bytep const op_end = out + *out_len;
#endif
#if defined(LZO1Z)
lzo_uint last_m_off = 0;
#endif
LZO_UNUSED(wrkmem);
#if defined(COPY_DICT)
if (dict)
{
if (dict_len > M4_MAX_OFFSET)
{
dict += dict_len - M4_MAX_OFFSET;
dict_len = M4_MAX_OFFSET;
}
dict_end = dict + dict_len;
}
else
{
dict_len = 0;
dict_end = NULL;
}
#endif /* COPY_DICT */
*out_len = 0;
op = out;
ip = in;
NEED_IP(1);
if (*ip > 17)
{
t = *ip++ - 17;
if (t < 4)
goto match_next;
assert(t > 0); NEED_OP(t); NEED_IP(t+3);
do *op++ = *ip++; while (--t > 0);
goto first_literal_run;
}
for (;;)
{
NEED_IP(3);
t = *ip++;
if (t >= 16)
goto match;
/* a literal run */
if (t == 0)
{
while (*ip == 0)
{
t += 255;
ip++;
TEST_IV(t);
NEED_IP(1);
}
t += 15 + *ip++;
}
/* copy literals */
assert(t > 0); NEED_OP(t+3); NEED_IP(t+6);
#if (LZO_OPT_UNALIGNED64) && (LZO_OPT_UNALIGNED32)
t += 3;
if (t >= 8) do
{
UA_COPY8(op,ip);
op += 8; ip += 8; t -= 8;
} while (t >= 8);
if (t >= 4)
{
UA_COPY4(op,ip);
op += 4; ip += 4; t -= 4;
}
if (t > 0)
{
*op++ = *ip++;
if (t > 1) { *op++ = *ip++; if (t > 2) { *op++ = *ip++; } }
}
#elif (LZO_OPT_UNALIGNED32) || (LZO_ALIGNED_OK_4)
#if !(LZO_OPT_UNALIGNED32)
if (PTR_ALIGNED2_4(op,ip))
{
#endif
UA_COPY4(op,ip);
op += 4; ip += 4;
if (--t > 0)
{
if (t >= 4)
{
do {
UA_COPY4(op,ip);
op += 4; ip += 4; t -= 4;
} while (t >= 4);
if (t > 0) do *op++ = *ip++; while (--t > 0);
}
else
do *op++ = *ip++; while (--t > 0);
}
#if !(LZO_OPT_UNALIGNED32)
}
else
#endif
#endif
#if !(LZO_OPT_UNALIGNED32)
{
*op++ = *ip++; *op++ = *ip++; *op++ = *ip++;
do *op++ = *ip++; while (--t > 0);
}
#endif
first_literal_run:
t = *ip++;
if (t >= 16)
goto match;
#if defined(COPY_DICT)
#if defined(LZO1Z)
m_off = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2);
last_m_off = m_off;
#else
m_off = (1 + M2_MAX_OFFSET) + (t >> 2) + (*ip++ << 2);
#endif
NEED_OP(3);
t = 3; COPY_DICT(t,m_off)
#else /* !COPY_DICT */
#if defined(LZO1Z)
t = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2);
m_pos = op - t;
last_m_off = t;
#else
m_pos = op - (1 + M2_MAX_OFFSET);
m_pos -= t >> 2;
m_pos -= *ip++ << 2;
#endif
TEST_LB(m_pos); NEED_OP(3);
*op++ = *m_pos++; *op++ = *m_pos++; *op++ = *m_pos;
#endif /* COPY_DICT */
goto match_done;
/* handle matches */
for (;;) {
match:
if (t >= 64) /* a M2 match */
{
#if defined(COPY_DICT)
#if defined(LZO1X)
m_off = 1 + ((t >> 2) & 7) + (*ip++ << 3);
t = (t >> 5) - 1;
#elif defined(LZO1Y)
m_off = 1 + ((t >> 2) & 3) + (*ip++ << 2);
t = (t >> 4) - 3;
#elif defined(LZO1Z)
m_off = t & 0x1f;
if (m_off >= 0x1c)
m_off = last_m_off;
else
{
m_off = 1 + (m_off << 6) + (*ip++ >> 2);
last_m_off = m_off;
}
t = (t >> 5) - 1;
#endif
#else /* !COPY_DICT */
#if defined(LZO1X)
m_pos = op - 1;
m_pos -= (t >> 2) & 7;
m_pos -= *ip++ << 3;
t = (t >> 5) - 1;
#elif defined(LZO1Y)
m_pos = op - 1;
m_pos -= (t >> 2) & 3;
m_pos -= *ip++ << 2;
t = (t >> 4) - 3;
#elif defined(LZO1Z)
{
lzo_uint off = t & 0x1f;
m_pos = op;
if (off >= 0x1c)
{
assert(last_m_off > 0);
m_pos -= last_m_off;
}
else
{
off = 1 + (off << 6) + (*ip++ >> 2);
m_pos -= off;
last_m_off = off;
}
}
t = (t >> 5) - 1;
#endif
TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
goto copy_match;
#endif /* COPY_DICT */
}
else if (t >= 32) /* a M3 match */
{
t &= 31;
if (t == 0)
{
while (*ip == 0)
{
t += 255;
ip++;
TEST_OV(t);
NEED_IP(1);
}
t += 31 + *ip++;
NEED_IP(2);
}
#if defined(COPY_DICT)
#if defined(LZO1Z)
m_off = 1 + (ip[0] << 6) + (ip[1] >> 2);
last_m_off = m_off;
#else
m_off = 1 + (ip[0] >> 2) + (ip[1] << 6);
#endif
#else /* !COPY_DICT */
#if defined(LZO1Z)
{
lzo_uint off = 1 + (ip[0] << 6) + (ip[1] >> 2);
m_pos = op - off;
last_m_off = off;
}
#elif (LZO_OPT_UNALIGNED16) && (LZO_ABI_LITTLE_ENDIAN)
m_pos = op - 1;
m_pos -= UA_GET_LE16(ip) >> 2;
#else
m_pos = op - 1;
m_pos -= (ip[0] >> 2) + (ip[1] << 6);
#endif
#endif /* COPY_DICT */
ip += 2;
}
else if (t >= 16) /* a M4 match */
{
#if defined(COPY_DICT)
m_off = (t & 8) << 11;
#else /* !COPY_DICT */
m_pos = op;
m_pos -= (t & 8) << 11;
#endif /* COPY_DICT */
t &= 7;
if (t == 0)
{
while (*ip == 0)
{
t += 255;
ip++;
TEST_OV(t);
NEED_IP(1);
}
t += 7 + *ip++;
NEED_IP(2);
}
#if defined(COPY_DICT)
#if defined(LZO1Z)
m_off += (ip[0] << 6) + (ip[1] >> 2);
#else
m_off += (ip[0] >> 2) + (ip[1] << 6);
#endif
ip += 2;
if (m_off == 0)
goto eof_found;
m_off += 0x4000;
#if defined(LZO1Z)
last_m_off = m_off;
#endif
#else /* !COPY_DICT */
#if defined(LZO1Z)
m_pos -= (ip[0] << 6) + (ip[1] >> 2);
#elif (LZO_OPT_UNALIGNED16) && (LZO_ABI_LITTLE_ENDIAN)
m_pos -= UA_GET_LE16(ip) >> 2;
#else
m_pos -= (ip[0] >> 2) + (ip[1] << 6);
#endif
ip += 2;
if (m_pos == op)
goto eof_found;
m_pos -= 0x4000;
#if defined(LZO1Z)
last_m_off = pd((const lzo_bytep)op, m_pos);
#endif
#endif /* COPY_DICT */
}
else /* a M1 match */
{
#if defined(COPY_DICT)
#if defined(LZO1Z)
m_off = 1 + (t << 6) + (*ip++ >> 2);
last_m_off = m_off;
#else
m_off = 1 + (t >> 2) + (*ip++ << 2);
#endif
NEED_OP(2);
t = 2; COPY_DICT(t,m_off)
#else /* !COPY_DICT */
#if defined(LZO1Z)
t = 1 + (t << 6) + (*ip++ >> 2);
m_pos = op - t;
last_m_off = t;
#else
m_pos = op - 1;
m_pos -= t >> 2;
m_pos -= *ip++ << 2;
#endif
TEST_LB(m_pos); NEED_OP(2);
*op++ = *m_pos++; *op++ = *m_pos;
#endif /* COPY_DICT */
goto match_done;
}
/* copy match */
#if defined(COPY_DICT)
NEED_OP(t+3-1);
t += 3-1; COPY_DICT(t,m_off)
#else /* !COPY_DICT */
TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
#if (LZO_OPT_UNALIGNED64) && (LZO_OPT_UNALIGNED32)
if (op - m_pos >= 8)
{
t += (3 - 1);
if (t >= 8) do
{
UA_COPY8(op,m_pos);
op += 8; m_pos += 8; t -= 8;
} while (t >= 8);
if (t >= 4)
{
UA_COPY4(op,m_pos);
op += 4; m_pos += 4; t -= 4;
}
if (t > 0)
{
*op++ = m_pos[0];
if (t > 1) { *op++ = m_pos[1]; if (t > 2) { *op++ = m_pos[2]; } }
}
}
else
#elif (LZO_OPT_UNALIGNED32) || (LZO_ALIGNED_OK_4)
#if !(LZO_OPT_UNALIGNED32)
if (t >= 2 * 4 - (3 - 1) && PTR_ALIGNED2_4(op,m_pos))
{
assert((op - m_pos) >= 4); /* both pointers are aligned */
#else
if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4)
{
#endif
UA_COPY4(op,m_pos);
op += 4; m_pos += 4; t -= 4 - (3 - 1);
do {
UA_COPY4(op,m_pos);
op += 4; m_pos += 4; t -= 4;
} while (t >= 4);
if (t > 0) do *op++ = *m_pos++; while (--t > 0);
}
else
#endif
{
copy_match:
*op++ = *m_pos++; *op++ = *m_pos++;
do *op++ = *m_pos++; while (--t > 0);
}
#endif /* COPY_DICT */
match_done:
#if defined(LZO1Z)
t = ip[-1] & 3;
#else
t = ip[-2] & 3;
#endif
if (t == 0)
break;
/* copy literals */
match_next:
assert(t > 0); assert(t < 4); NEED_OP(t); NEED_IP(t+3);
#if 0
do *op++ = *ip++; while (--t > 0);
#else
*op++ = *ip++;
if (t > 1) { *op++ = *ip++; if (t > 2) { *op++ = *ip++; } }
#endif
t = *ip++;
}
}
eof_found:
*out_len = pd(op, out);
return (ip == ip_end ? LZO_E_OK :
(ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
#if defined(HAVE_NEED_IP)
input_overrun:
*out_len = pd(op, out);
return LZO_E_INPUT_OVERRUN;
#endif
#if defined(HAVE_NEED_OP)
output_overrun:
*out_len = pd(op, out);
return LZO_E_OUTPUT_OVERRUN;
#endif
#if defined(LZO_TEST_OVERRUN_LOOKBEHIND)
lookbehind_overrun:
*out_len = pd(op, out);
return LZO_E_LOOKBEHIND_OVERRUN;
#endif
}
/* vim:set ts=4 sw=4 et: */

36
extern/lzo/src/lzo1x_d1.c vendored Normal file
View File

@ -0,0 +1,36 @@
/* lzo1x_d1.c -- LZO1X decompression
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1x.h"
#undef LZO_TEST_OVERRUN
#define DO_DECOMPRESS lzo1x_decompress
#include "lzo1x_d.ch"
/* vim:set ts=4 sw=4 et: */

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extern/lzo/src/lzo1x_d2.c vendored Normal file
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/* lzo1x_d2.c -- LZO1X decompression with overrun testing
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1x.h"
#define LZO_TEST_OVERRUN 1
#define DO_DECOMPRESS lzo1x_decompress_safe
#include "lzo1x_d.ch"
#if defined(LZO_ARCH_I386) && defined(LZO_USE_ASM)
LZO_EXTERN(int) lzo1x_decompress_asm_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_PUBLIC(int) lzo1x_decompress_asm_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem)
{
return lzo1x_decompress_safe(src, src_len, dst, dst_len, wrkmem);
}
LZO_EXTERN(int) lzo1x_decompress_asm_fast_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem);
LZO_PUBLIC(int) lzo1x_decompress_asm_fast_safe
(const lzo_bytep src, lzo_uint src_len,
lzo_bytep dst, lzo_uintp dst_len,
lzo_voidp wrkmem)
{
return lzo1x_decompress_safe(src, src_len, dst, dst_len, wrkmem);
}
#endif
/* vim:set ts=4 sw=4 et: */

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/* lzo1x_d3.c -- LZO1X decompression with preset dictionary
This file is part of the LZO real-time data compression library.
Copyright (C) 1996-2015 Markus Franz Xaver Johannes Oberhumer
All Rights Reserved.
The LZO library 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.
The LZO library 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.
You should have received a copy of the GNU General Public License
along with the LZO library; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Markus F.X.J. Oberhumer
<markus@oberhumer.com>
http://www.oberhumer.com/opensource/lzo/
*/
#include "config1x.h"
#define LZO_TEST_OVERRUN 1
#define SLOW_MEMCPY(a,b,l) { do *a++ = *b++; while (--l > 0); }
#define FAST_MEMCPY(a,b,l) { lzo_memcpy(a,b,l); a += l; }
#if 1 && defined(FAST_MEMCPY)
# define DICT_MEMMOVE(op,m_pos,m_len,m_off) \
if (m_off >= (m_len)) \
FAST_MEMCPY(op,m_pos,m_len) \
else \
SLOW_MEMCPY(op,m_pos,m_len)
#else
# define DICT_MEMMOVE(op,m_pos,m_len,m_off) \
SLOW_MEMCPY(op,m_pos,m_len)
#endif
#if !defined(FAST_MEMCPY)
# define FAST_MEMCPY SLOW_MEMCPY
#endif
#define COPY_DICT_DICT(m_len,m_off) \
{ \
const lzo_bytep m_pos; \
m_off -= pd(op, out); assert(m_off > 0); \
if (m_off > dict_len) goto lookbehind_overrun; \
m_pos = dict_end - m_off; \
if (m_len > m_off) \
{ \
m_len -= m_off; \
FAST_MEMCPY(op,m_pos,m_off) \
m_pos = out; \
SLOW_MEMCPY(op,m_pos,m_len) \
} \
else \
FAST_MEMCPY(op,m_pos,m_len) \
}
#define COPY_DICT(m_len,m_off) \
assert(m_len >= 2); assert(m_off > 0); assert(op > out); \
if (m_off <= pd(op, out)) \
{ \
const lzo_bytep m_pos = op - m_off; \
DICT_MEMMOVE(op,m_pos,m_len,m_off) \
} \
else \
COPY_DICT_DICT(m_len,m_off)
LZO_PUBLIC(int)
lzo1x_decompress_dict_safe ( const lzo_bytep in, lzo_uint in_len,
lzo_bytep out, lzo_uintp out_len,
lzo_voidp wrkmem /* NOT USED */,
const lzo_bytep dict, lzo_uint dict_len)
#include "lzo1x_d.ch"
/* vim:set ts=4 sw=4 et: */

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