emmanuel-marty
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0f4ffa7166
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Clean up check for emitting a single raw block
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2019-05-12 23:21:50 +02:00 |
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emmanuel-marty
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c96594680a
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Use full BLOCK_SIZE for dictionary, and use last BLOCK_SIZE bytes rather than first
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2019-05-12 14:44:28 +02:00 |
|
emmanuel-marty
|
3caa72c722
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Clarify optimizer
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2019-05-11 11:42:18 +02:00 |
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emmanuel-marty
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8b7b4a2b4f
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Check in LZSA2 implementation (ratio competitive with ZX7, faster decompression)
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2019-05-09 16:51:29 +02:00 |
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emmanuel-marty
|
49b0739050
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Isolate frame implementation details
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2019-05-03 19:17:14 +02:00 |
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emmanuel-marty
|
31ededcdf7
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Rejoin large patterns
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2019-05-03 13:45:37 +02:00 |
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emmanuel-marty
|
bab5225e4c
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Implement dictionary support
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2019-05-02 18:38:57 +02:00 |
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emmanuel-marty
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ef6b43a296
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When using -m, decompress ~7% faster by trading ~0.5% of compression ratio
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2019-05-02 11:23:57 +02:00 |
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emmanuel-marty
|
9e75a55dd3
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Reduce token count by 1% without changing the ratio
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2019-04-25 13:01:56 +02:00 |
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emmanuel-marty
|
2b9780bd65
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Finalize lzsa1 compressed format, speed up and simplify decompression
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2019-04-24 09:47:40 +02:00 |
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emmanuel-marty
|
593110ae5d
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Fix parsing of -m option
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2019-04-22 14:16:25 +02:00 |
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emmanuel-marty
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331d6f9911
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Add --prefer-ratio, --prefer-speed, -m options
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2019-04-21 09:41:12 +02:00 |
|
emmanuel-marty
|
6c4a86c9fe
|
Make compression 5% faster
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2019-04-20 16:24:54 +02:00 |
|
emmanuel-marty
|
fb79d319cb
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Speed up portable decompressor a bit
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2019-04-20 10:27:24 +02:00 |
|
emmanuel-marty
|
3e5639afaf
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Reduce token count further
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2019-04-20 10:26:45 +02:00 |
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emmanuel-marty
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88054841cf
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Add strict block checks when decompressing, comparing
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2019-04-20 10:26:13 +02:00 |
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emmanuel-marty
|
aa5dbe283d
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Small optimization to the cost model
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2019-04-13 12:33:39 +02:00 |
|
emmanuel-marty
|
4913fe5d48
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Fix reporting of compressed size for raw mode
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2019-04-13 12:33:25 +02:00 |
|
emmanuel-marty
|
cf51f1775a
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Fix small literals cost estimate issue in optimizer, gain a small amount of compression and reduction of token count
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2019-04-11 23:47:57 +02:00 |
|
emmanuel-marty
|
2451d5802e
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Fix typo in lzsa tool
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2019-04-10 17:38:22 +02:00 |
|
emmanuel-marty
|
9649073131
|
Speed up compression
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2019-04-08 09:44:07 +02:00 |
|
emmanuel-marty
|
837b6895cf
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Further reduce the number of tokens for even better decompression speed; increase compression slightly
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2019-04-07 15:10:53 +02:00 |
|
emmanuel-marty
|
9c35d5115b
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When verbose, display uncompressed bytes/token ratio
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2019-04-07 15:10:17 +02:00 |
|
emmanuel-marty
|
6aa2dae4b3
|
Add context to libdivsufsort, don't allocate memory during compression
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2019-04-07 00:01:22 +02:00 |
|
emmanuel-marty
|
1353573af1
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Small cleanup for end-of-data handling in decompression, check commands
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2019-04-06 00:02:11 +02:00 |
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emmanuel-marty
|
a785010448
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Revert token to O|LLL|MMMM; revert to always shifting the match offset by 1; set raw block end marker as a large zero-size match
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2019-04-05 23:16:05 +02:00 |
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emmanuel-marty
|
06e6a14871
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Add optimization pass to reduce the number of command tokens in the compressed data blocks without changing the compression ratio
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2019-04-05 16:32:11 +02:00 |
|
emmanuel-marty
|
f05359b63d
|
Don't write an unnecessary footer byte when emitting a raw block
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2019-04-05 12:13:51 +02:00 |
|
emmanuel-marty
|
1ef1ad8111
|
Reorganize token byte for faster decoding on 8-bit CPUs, without affecting the compression ratio
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2019-04-05 11:58:44 +02:00 |
|
emmanuel-marty
|
c7692cf688
|
Store 16-bit lengths and match offsets directly, to simplify decompression on 8-bit CPUs without affecting the compression ratio
|
2019-04-05 10:42:06 +02:00 |
|
emmanuel-marty
|
c86d38ba63
|
Reduce the number of literals required at the end of a compressed block
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2019-04-05 09:28:16 +02:00 |
|
emmanuel-marty
|
18fc4da994
|
Implement raw block mode
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2019-04-03 13:05:10 +02:00 |
|
emmanuel-marty
|
11d1ff8cd7
|
Use 3-byte file header
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2019-04-03 11:26:36 +02:00 |
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emmanuel-marty
|
1f04705845
|
Fix degenerate case; use full 32 bits for suffix array intervals; make EOD parsable by a decompressor as a long 0 match offset as well; use more aggressive compression settings.
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2019-04-03 10:16:12 +02:00 |
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emmanuel-marty
|
fcfdbe9745
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Add autodocs to internal compressor functions
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2019-04-02 15:03:21 +02:00 |
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emmanuel-marty
|
8b992bb33a
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Add autodocs to public functions in compressor and decompressor
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2019-04-02 12:12:12 +02:00 |
|
marty-emmanuel
|
e216b0c544
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Initial checkin
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2019-04-01 18:04:56 +02:00 |
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