fb5f6aaf18
Fix typos discovered by codespell.
2024-02-16 22:54:59 +08:00
a4557bad96
liblzma: Silence warnings in --enable-small build.
2024-02-14 19:21:45 +02:00
160b686264
liblzma: Silence a warning.
2024-02-14 19:05:58 +02:00
0668907ff7
liblzma: Add comments.
2024-02-14 18:31:16 +02:00
de55485cb2
liblzma: Choose the range decoder variants using a bitmask macro.
2024-02-14 18:31:16 +02:00
3182a330c1
liblzma: Range decoder: Add x86-64 inline assembly.
...
It's compatible with GCC and Clang.
2024-02-14 18:31:16 +02:00
cba2edc991
liblzma: Range decoder: Add branchless C code.
...
It's used only for basic bittrees and fixed-size reverse bittree
because those showed a clear benefit on x86-64 with GCC and Clang.
The other methods were more mixed and thus are commented out but
they should be tested on other archs.
2024-02-14 18:31:16 +02:00
5e04706b91
liblzma: LZMA decoder: Optimize loop comparison.
...
But now it needs one more local variable.
2024-02-14 18:31:16 +02:00
e0c0ee475c
liblzma: LZMA decoder improvements.
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This adds macros for bittree decoding which prepares the code
for alternative C versions and inline assembly.
2024-02-14 18:31:16 +02:00
e446ab7a18
liblzma: Creates separate "safe" range decoder mode.
...
The new "safe" range decoder mode is the same as old range decoder, but
now the default behavior of the range decoder will not check if there is
enough input or output to complete the operation. When the buffers are
close to fully consumed, the "safe" operations must be used instead. This
will improve speed because it will reduce the number of branches needed
for most of the range decoder operations.
2024-02-14 18:31:16 +02:00
22af94128b
Add SPDX license identifier into 0BSD source code files.
2024-02-14 18:31:16 +02:00
689e0228ba
Change most public domain parts to 0BSD.
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Translations and doc/xz-file-format.txt and doc/lzma-file-format.txt
were not touched.
COPYING.0BSD was added.
2024-02-14 18:31:12 +02:00
f6667702bf
liblzma: Change quoting style from `...' to '...'.
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This was done for both internal and API headers.
2023-09-24 22:09:47 +08:00
1403707fc6
liblzma: Check that the first byte of range encoded data is 0x00.
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It is just to be more pedantic and thus perhaps catch broken
files slightly earlier.
2012-06-28 10:47:49 +03:00
02ddf09bc3
Put the interesting parts of XZ Utils into the public domain.
...
Some minor documentation cleanups were made at the same time.
2009-04-13 11:27:40 +03:00
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
641998c3e1
Replaced the range decoder optimization that used arithmetic
...
right shift with as fast version that doesn't need
arithmetic right shift. Removed the related check from
configure.ac.
2008-03-24 16:38:40 +02:00
ad999efd27
Take advantage of arithmetic right shift in range decoder.
2008-03-22 14:39:34 +02:00
bbfd1f6ab0
Moved range decoder initialization (reading the first
...
five input bytes) from LZMA decoder to range decoder
header. Did the same for decoding of direct bits.
2008-01-04 20:45:05 +02:00
5d018dc035
Imported to git.
2007-12-09 00:42:33 +02:00
Jia Tan
Lasse Collin