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145 commits

Author SHA1 Message Date
Lasse Collin
653e457e37 Fix a dumb bug in .lzma decoder which was introduced in
the previous commit. (Probably the previous commit has
other bugs too, it wasn't tested.)
2008-12-15 23:26:43 +02:00
Lasse Collin
671a5adf1e Bunch of liblzma API cleanups and fixes. 2008-12-15 19:39:13 +02:00
Lasse Collin
17781c2c20 The LZMA2 decoder fix introduced a bug to LZ decoder,
which made LZ decoder return too early after dictionary
reset. This fixes it.
2008-12-15 14:26:52 +02:00
Lasse Collin
ff7fb2c605 Fix data corruption in LZMA2 decoder. 2008-12-15 10:01:59 +02:00
Lasse Collin
6efa2d80d4 Make the memusage functions of LZMA1 and LZMA2 encoders
to validate the filter options. Add missing validation
to LZMA2 encoder when options are changed in the middle
of encoding.
2008-12-09 17:41:49 +02:00
Lasse Collin
ccd57afa09 Validate the filter chain before checking filter-specific
memory usage.
2008-12-01 22:59:28 +02:00
Lasse Collin
c596fda40b Make the memusage functions of LZMA1 and LZMA2 decoders
to validate the filter options.
2008-12-01 22:58:22 +02:00
Lasse Collin
c58f469be5 Added the changes for Delta filter that should have been
part of 656ec87882.
2008-12-01 22:55:18 +02:00
Lasse Collin
cd70801520 LZMA2 decoder cleanups. Make it require new LZMA properties
also in the first LZMA chunk after a dictionary reset in
uncompressed chunk.
2008-12-01 22:50:28 +02:00
Lasse Collin
656ec87882 Added lzma_delta_coder_memusage() which also validates
the options.
2008-12-01 16:30:11 +02:00
Lasse Collin
a8368b75cd Remove the nowadays unneeded memory limitting malloc() wrapper. 2008-11-25 02:37:47 +02:00
Lasse Collin
69472ee5f0 VLI encoder and decoder cleanups. Made encoder return
LZMA_PROG_ERROR in single-call mode if there's no output
space.
2008-11-23 15:09:03 +02:00
Lasse Collin
e114502b2b Oh well, big messy commit again. Some highlights:
- Updated to the latest, probably final file format version.
  - Command line tool reworked to not use threads anymore.
    Threading will probably go into liblzma anyway.
  - Memory usage limit is now about 30 % for uncompression
    and about 90 % for compression.
  - Progress indicator with --verbose
  - Simplified --help and full --long-help
  - Upgraded to the last LGPLv2.1+ getopt_long from gnulib.
  - Some bug fixes
2008-11-19 20:46:52 +02:00
Lasse Collin
1e8e4fd1f3 Made the preset numbering more logical in liblzma API. 2008-10-07 09:40:31 +03:00
Lasse Collin
8e60c889a2 Fixed Stream decoder to actually use the first_stream variable. 2008-09-30 13:57:44 +03:00
Lasse Collin
a6639022fd Fixed uninitialized variable in Stream decoder. 2008-09-30 13:34:07 +03:00
Lasse Collin
ea560b0ea8 Fix conflicting Subblock helper filter's ID. 2008-09-27 23:49:24 +03:00
Lasse Collin
ad97483b6e Changed magic bytes to match the updated spec. Filename
suffix wasn't changed yet.
2008-09-27 23:37:13 +03:00
Lasse Collin
1dcecfb09b Some API changes, bug fixes, cleanups etc. 2008-09-27 19:09:21 +03:00
Lasse Collin
f147666a5c Miscellaneous LZ and LZMA encoder cleanups 2008-09-17 22:11:39 +03:00
Lasse Collin
13d68b0698 LZ decoder cleanup 2008-09-13 13:54:00 +03:00
Lasse Collin
13a74b78e3 Renamed constants:
- LZMA_VLI_VALUE_MAX -> LZMA_VLI_MAX
  - LZMA_VLI_VALUE_UNKNOWN -> LZMA_VLI_UNKNOWN
  - LZMA_HEADER_ERRRO -> LZMA_OPTIONS_ERROR
2008-09-13 12:10:43 +03:00
Lasse Collin
320601b2c7 Improved the Stream Flags handling API. 2008-09-12 22:41:40 +03:00
Lasse Collin
16e8b98f26 Remove a check from Block encoder that should have already
been removed in 2ba01bfa75.
2008-09-11 23:09:24 +03:00
Lasse Collin
5a710c3805 Remove bogus #includes. 2008-09-11 20:02:38 +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
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
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
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
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
803194ddd2 Fix uninitialized variable in LZMA encoder. This was
introduced in 369f72fd65.
2008-06-11 21:42:47 +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
ed6664146f Remove support for pre-C89 libc versions that lack memcpy,
memmove, and memset.
2008-05-11 14:24:42 +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
3be21fb12f Fixed wrong spelling "limitter" to "limiter". This affects
liblzma's API.
2008-04-28 17:06:34 +03:00