xz.git - XZ Utils

Age	Commit message (Collapse)	Author	Files	Lines
2008-06-20	Remove some redundant code from LZMA encoder.	Lasse Collin	1	-14/+1

2008-06-18	Comments	Lasse Collin	1	-5/+2

2008-06-01	Fix a buffer overflow in the LZMA encoder. It was due to my	Lasse Collin	1	-290/+261
	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.
2008-04-24	Added two assert()s.	Lasse Collin	1	-1/+3

2008-03-22	Demystified the "state" variable in LZMA code. Use the	Lasse Collin	1	-7/+7
	word literal instead of char for better consistency. There are still some names with _char instead of _literal in lzma_optimum, these may be changed later. Renamed length coder variables. This commit doesn't change the program logic.
2008-03-14	Fix data corruption in LZMA encoder. Note that this bug was	Lasse Collin	1	-0/+4
	specific to liblzma and was not present in LZMA SDK.
2008-01-18	Fix LZMA_SYNC_FLUSH handling in LZ and LZMA encoders.	Lasse Collin	1	-25/+2
	That code is now almost completely in LZ coder, where it can be shared with other LZ77-based algorithms in future.
2008-01-15	Revised the fastpos code. It now uses the slightly faster	Lasse Collin	1	-0/+1
	table-based version from LZMA SDK 4.57. This should be fast on most systems. A simpler and smaller alternative version is also provided. On some CPUs this can be even a little faster than the default table-based version (see comments in fastpos.h), but on most systems the table-based code is faster.
2008-01-15	Fix a typo in lzma_encoder.c.	Lasse Collin	1	-1/+1

2008-01-15	Convert bittree_get_price() and bittree_reverse_get_price()	Lasse Collin	1	-12/+7
	from macros to inline functions.
2008-01-14	Major changes to LZ encoder, LZMA encoder, and range encoder.	Lasse Collin	1	-31/+43
	These changes implement support for LZMA_SYNC_FLUSH in LZMA encoder, and move the temporary buffer needed by range encoder from lzma_range_encoder structure to lzma_lz_encoder.