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Rev	Author	Line No.	Line
26	pmbaty	1
		2	============================================================================
		3	miniLZO -- mini subset of the LZO real-time data compression library
		4	============================================================================
		5
		6	Author : Markus Franz Xaver Johannes Oberhumer
		7	<markus@oberhumer.com>
		8	http://www.oberhumer.com/opensource/lzo/
		9	Version : 2.10
		10	Date : 01 Mar 2017
		11
		12	I've created miniLZO for projects where it is inconvenient to
		13	include (or require) the full LZO source code just because you
		14	want to add a little bit of data compression to your application.
		15
		16	miniLZO implements the LZO1X-1 compressor and both the standard and
		17	safe LZO1X decompressor. Apart from fast compression it also useful
		18	for situations where you want to use pre-compressed data files (which
		19	must have been compressed with LZO1X-999).
		20
		21	miniLZO consists of one C source file and three header files:
		22	minilzo.c
		23	minilzo.h, lzoconf.h, lzodefs.h
		24
		25	To use miniLZO just copy these files into your source directory, add
		26	minilzo.c to your Makefile and #include minilzo.h from your program.
		27	Note: you also must distribute this file ('README.LZO') with your project.
		28
		29	minilzo.o compiles to about 6 KiB (using gcc or Visual C on an i386), and
		30	the sources are about 30 KiB when packed with zip - so there's no more
		31	excuse that your application doesn't support data compression :-)
		32
		33	For more information, documentation, example programs and other support
		34	files (like Makefiles and build scripts) please download the full LZO
		35	package from
		36	http://www.oberhumer.com/opensource/lzo/
		37
		38	Have fun,
		39	Markus
		40
		41
		42	P.S. minilzo.c is generated automatically from the LZO sources and
		43	therefore functionality is completely identical
		44
		45
		46	Appendix A: building miniLZO
		47	----------------------------
		48	miniLZO is written such a way that it should compile and run
		49	out-of-the-box on most machines.
		50
		51	If you are running on a very unusual architecture and lzo_init() fails then
		52	you should first recompile with '-DLZO_DEBUG' to see what causes the failure.
		53	The most probable case is something like 'sizeof(void *) != sizeof(size_t)'.
		54	After identifying the problem you can compile by adding some defines
		55	like '-DSIZEOF_VOID_P=8' to your Makefile.
		56
		57	The best solution is (of course) using Autoconf - if your project uses
		58	Autoconf anyway just add '-DMINILZO_HAVE_CONFIG_H' to your compiler
		59	flags when compiling minilzo.c. See the LZO distribution for an example
		60	how to set up configure.ac.
		61
		62
		63	Appendix B: list of public functions available in miniLZO
		64	---------------------------------------------------------
		65	Library initialization
		66	lzo_init()
		67
		68	Compression
		69	lzo1x_1_compress()
		70
		71	Decompression
		72	lzo1x_decompress()
		73	lzo1x_decompress_safe()
		74
		75	Checksum functions
		76	lzo_adler32()
		77
		78	Version functions
		79	lzo_version()
		80	lzo_version_string()
		81	lzo_version_date()
		82
		83	Portable (but slow) string functions
		84	lzo_memcmp()
		85	lzo_memcpy()
		86	lzo_memmove()
		87	lzo_memset()
		88
		89
		90	Appendix C: suggested macros for 'configure.ac' when using Autoconf
		91	-------------------------------------------------------------------
		92	Checks for typedefs and structures
		93	AC_CHECK_TYPE(ptrdiff_t,long)
		94	AC_TYPE_SIZE_T
		95	AC_CHECK_SIZEOF(short)
		96	AC_CHECK_SIZEOF(int)
		97	AC_CHECK_SIZEOF(long)
		98	AC_CHECK_SIZEOF(long long)
		99	AC_CHECK_SIZEOF(__int64)
		100	AC_CHECK_SIZEOF(void *)
		101	AC_CHECK_SIZEOF(size_t)
		102	AC_CHECK_SIZEOF(ptrdiff_t)
		103
		104	Checks for compiler characteristics
		105	AC_C_CONST
		106
		107	Checks for library functions
		108	AC_CHECK_FUNCS(memcmp memcpy memmove memset)
		109
		110
		111	Appendix D: Copyright
		112	---------------------
		113	LZO and miniLZO are Copyright (C) 1996-2017 Markus Franz Xaver Oberhumer
		114	All Rights Reserved.
		115
		116	LZO and miniLZO are distributed under the terms of the GNU General
		117	Public License (GPL). See the file COPYING.
		118
		119	Special licenses for commercial and other applications which
		120	are not willing to accept the GNU General Public License
		121	are available by contacting the author.
		122
		123

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