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1398 Commits

Author SHA1 Message Date
Lasse Collin 01892b2ca5 Updated THANKS. 2008-09-11 10:49:14 +03:00
Lasse Collin 962f2231d4 Fix a compiler error on big endian systems that don't 
support unaligned memory access.
 2008-09-11 10:48:12 +03:00
Lasse Collin fa3ab0df8a Silence a compiler warning. 2008-09-11 10:46:14 +03:00
Lasse Collin 9373e81e18 Bumped version to 4.999.6alpha. 2008-09-10 19:16:32 +03:00
Lasse Collin cb072b7c84 Check for LZMA_FILTER_RESERVED_START in filter_flags_encoder.c. 
Use LZMA_PROG_ERROR instead of LZMA_HEADER_ERROR if the Filter ID
is in the reserved range. This allows Block Header encoder to
detect unallowed Filter IDs, which is good for Stream encoder.
 2008-09-10 17:02:00 +03:00
Lasse Collin 123ab0acec Filter handling cleanups 2008-09-10 16:44:32 +03:00
Lasse Collin 9cfcd0c4f2 Comments 2008-09-10 00:33:00 +03:00
Lasse Collin 2ba01bfa75 Cleaned up Block encoder and moved the no longer shared 
code from block_private.h to block_decoder.c. Now the Block
encoder doesn't need compressed_size and uncompressed_size
from lzma_block structure to be initialized.
 2008-09-10 00:27:02 +03:00
Lasse Collin 07efcb5a6b Changed Filter ID of LZMA to 0x20. 2008-09-07 10:23:13 +03:00
Lasse Collin 32fe5fa541 Comments 2008-09-06 23:42:50 +03:00
Lasse Collin 0a31ed9d5e Some API cleanups 2008-09-06 15:14:30 +03:00
Lasse Collin da98df5440 Added support for raw encoding and decoding to the command 
line tool, and made various cleanups. --lzma was renamed to
--lzma1 to prevent people from accidentally using LZMA when
they want LZMA2.
 2008-09-04 11:53:06 +03:00
Lasse Collin 2496aee8a7 Don't allow LZMA_SYNC_FLUSH with decoders anymore. There's 
simply nothing that would use it. Allow LZMA_FINISH to the
decoders, which will usually ignore it (auto decoder and
Stream decoder being exceptions).
 2008-09-04 10:39:15 +03:00
Lasse Collin bea301c26d Minor updates to the file format specification. 2008-09-03 17:06:25 +03:00
Lasse Collin 9c75b089b4 Command line tool fixes 2008-09-02 19:33:32 +03:00
Lasse Collin bab0590504 Auto decoder cleanup 2008-09-02 19:31:42 +03:00
Lasse Collin 689602336d Updated auto decoder to handle LZMA_CONCATENATED when decoding 
LZMA_Alone files. Decoding of concatenated LZMA_Alone files is
intentionally not supported, so it is better to put this in
auto decoder than LZMA_Alone decoder.
 2008-09-02 19:12:12 +03:00
Lasse Collin 80c4158f19 Stream decoder cleanups 2008-09-02 14:56:52 +03:00
Lasse Collin fc68165745 Some fixes to LZ encoder. 2008-09-02 11:45:39 +03:00
Lasse Collin ede675f9ac Fix wrong pointer calculation in LZMA encoder. 2008-08-31 11:47:01 +03:00
Lasse Collin 3b34851de1 Sort of garbage collection commit. :-| Many things are still 
broken. API has changed a lot and it will still change a
little more here and there. The command line tool doesn't
have all the required changes to reflect the API changes, so
it's easy to get "internal error" or trigger assertions.
 2008-08-28 22:53:15 +03:00
Lasse Collin 57b9a145a5 Fix test_filter_flags to match the new restriction of lc+lp. 2008-06-20 17:16:32 +03:00
Lasse Collin eaafc4367c Remove some redundant code from LZMA encoder. 2008-06-20 16:19:54 +03:00
Lasse Collin 0809c46534 Add limit of lc + lp <= 4. Now we can allocate the 
literal coder as part of the main LZMA encoder or
decoder structure.

Make the LZMA decoder to rely on the current internal API
to free the allocated memory in case an error occurs.
 2008-06-19 16:35:08 +03:00
Lasse Collin d25ab1b961 Comments 2008-06-18 21:45:19 +03:00
Lasse Collin 6368a2fa59 Delete old code that was supposed to be already deleted 
from test_block_header.c.
 2008-06-18 19:19:02 +03:00
Lasse Collin 7d17818cec Update the code to mostly match the new simpler file format 
specification. Simplify things by removing most of the
support for known uncompressed size in most places.
There are some miscellaneous changes here and there too.

The API of liblzma has got many changes and still some
more will be done soon. While most of the code has been
updated, some things are not fixed (the command line tool
will choke with invalid filter chain, if nothing else).

Subblock filter is somewhat broken for now. It will be
updated once the encoded format of the Subblock filter
has been decided.
 2008-06-18 18:02:10 +03:00
Lasse Collin bf6348d1a3 Update the file format specification draft. The new one is 
a lot simpler than the previous versions, but it also means
that the existing code will change a lot.
 2008-06-17 15:03:46 +03:00
Lasse Collin 803194ddd2 Fix uninitialized variable in LZMA encoder. This was 
introduced in 369f72fd65.
 2008-06-11 21:42:47 +03:00
Lasse Collin 0ea98e52ba Improve command line integer parsing a little in lzma and 
lzmadec to make them accept also KiB in addition Ki etc.
Fix also memory usage information in lzmadec --help.
 2008-06-11 15:08:44 +03:00
Lasse Collin 436fa5fae9 s/decompressed/compressed/ in the command line tool's 
error message.
 2008-06-10 20:36:12 +03:00
Lasse Collin 369f72fd65 Fix a buffer overflow in the LZMA encoder. It was due to my 
misunderstanding of the code. There's no tiny fix for this
problem, so I also cleaned up the code in general.

This reduces the speed of the encoder 2-5 % in the fastest
compression mode ("lzma -1"). High compression modes should
have no noticeable performance difference.

This commit breaks things (especially LZMA_SYNC_FLUSH) but I
will fix them once the new format and LZMA2 has been roughly
implemented. Plain LZMA won't support LZMA_SYNC_FLUSH at all
and won't be supported in the new .lzma format. This may
change still but this is what it looks like now.

Support for known uncompressed size (that is, LZMA or LZMA2
without EOPM) is likely to go away. This means there will
be API changes.
 2008-06-01 12:48:17 +03:00
Lasse Collin e55e0e873c Typo fixes from meyering. 2008-05-30 11:53:41 +03:00
Lasse Collin ed6664146f Remove support for pre-C89 libc versions that lack memcpy, 
memmove, and memset.
 2008-05-11 14:24:42 +03:00
Lasse Collin b09464bf9a Improved C99 compiler detection in configure.ac. It will 
pass -std=gnu99 instead of -std=c99 to GCC now, but -pedantic
should still give warnings about GNU extensions like before
except with some special keywords like asm().
 2008-05-11 14:17:21 +03:00
Lasse Collin 11de5d5267 Bunch of grammar fixes from meyering. 2008-05-06 15:15:07 +03:00
Lasse Collin dc192b6343 Typo fix 2008-05-06 13:41:05 +03:00
Lasse Collin 944b62b932 Don't print an error message on broken pipe unless --verbose 
is used.
 2008-05-04 22:29:27 +03:00
Lasse Collin 8e074349e4 Fix a crash with --format=alone if other filters than LZMA 
are specified on the command line.
 2008-04-30 22:16:17 +03:00
Lasse Collin 2f361ac19b Updated THANKS. 2008-04-28 17:08:27 +03:00
Lasse Collin 3be21fb12f Fixed wrong spelling "limitter" to "limiter". This affects 
liblzma's API.
 2008-04-28 17:06:34 +03:00
Lasse Collin beeb810608 Prevent LZ encoder from hanging with known uncompressed 
size. The "fix" breaks LZMA_SYNC_FLUSH at end of stream
with known uncompressed size, but since it currently seems
likely that support for encoding with known uncompressed
size will go away anyway, I'm not fixing this problem now.
 2008-04-25 15:39:50 +03:00
Lasse Collin c324325f9f Removed src/liblzma/common/sysdefs.h symlink, which was 
annoying, because "make dist" put two copies of sysdefs.h
into the tarball instead of the symlink.
 2008-04-25 13:58:56 +03:00
Lasse Collin d3ba30243c Added memusage.c to debug directory. 2008-04-25 13:41:29 +03:00
Lasse Collin 8f804c29aa Bumped version number to 4.999.3alpha. It will become 5.0.0 
once we have a stable release (won't be very soon). The
version number is no longer related to version of LZMA SDK.

Made some small Automake-related changes to toplevel
Makefile.am and configure.ac.
 2008-04-25 13:32:35 +03:00
Lasse Collin c99037ea10 Fix a memory leak by calling free(extra->data) in 
lzma_extra_free().
 2008-04-24 20:25:39 +03:00
Lasse Collin 22ba3b0b50 Make unlzma and lzcat symlinks. 2008-04-24 20:23:05 +03:00
Lasse Collin 17c36422d4 Fixed a bug in command line option parsing. 2008-04-24 20:20:27 +03:00
Lasse Collin 283f939974 Added two assert()s. 2008-04-24 20:19:20 +03:00
Lasse Collin eb348a60b6 Switch to uint16_t as the type of range coder probabilities. 2008-04-24 19:22:53 +03:00