denuvo-ref/precomp-cpp
1
0
Fork 0
mirror of https://github.com/schnaader/precomp-cpp synced 2026-08-23 00:23:04 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
252 commits 3 branches 4 tags 4.5 MiB
Commit graph

252 commits

This branch
This branch
All branches
Author SHA1 Message Date
Márcio Pais
61a6c5ed9e
Tweaked brute mode heuristic 2017-11-05 20:28:15 +01:00
Márcio Pais
ec0a5ae8b3
New brute mode heuristic, context-dependent MTF lists 2017-11-04 20:49:45 +01:00
Márcio Pais
74a431341b
MTF list for zlib parameters 
Use an MTF list to keep the possible zlib parameter combinations indexed by recency
 2017-10-31 23:08:01 +01:00
Márcio Pais
d585b545be
MTF List class to speed up zlib parameter search 2017-10-31 23:04:40 +01:00
Christian Schneider
22922c3857 Tell install to create $(BINDIR) if it doesn't exist 
See issue #68
 2017-10-29 08:42:20 +01:00
Christian Schneider
8841ab33e2 Makefile for macOS 
should fix #68 and #60
 2017-10-29 05:09:24 +01:00
Christian Schneider
206bc0668a Merge branch 'master' of https://github.com/schnaader/precomp-cpp 2017-10-17 11:53:53 +02:00
Christian Schneider
22e5f2b98e Fix issue #65 
- Use 64 bit for byte count
- Remove unused parameter
 2017-10-11 06:07:18 +02:00
Christian
116d7d981d Makefiles for 32 bit version 2017-09-22 18:55:51 +02:00
Christian Schneider
b643a3cb34 Starting 0.4.7 development 2017-09-21 06:30:26 +02:00
Christian Schneider
eff8288dbc Version 0.4.6 release 2017-09-08 06:32:14 +02:00
Christian Schneider
8adf07ce00 Bugfix for streams bigger than MAX_IO_BUFFER_SIZE 2017-09-04 13:04:44 +02:00
Christian Schneider
57035b5ac4 Bugfix 2017-08-30 17:18:20 +02:00
Christian Schneider
f3244b5f9c Tolerance for identical compressed bytes 2017-08-30 08:17:31 +02:00
Christian Schneider
3709606149 Some fixes 
- seek in try_to_decompress is needed
- don't keep on allocating decomp_io_buf memory
 2017-08-30 06:46:26 +02:00
Christian Schneider
ec2bb6d231 First test version 
- decompress in memory until size exceeds 64 MB
- in recursion, we still use a tempfile
 2017-08-29 17:23:15 +02:00
Christian Schneider
36a96bd95e 64 MB I/O buffer not only for JPG 2017-08-28 16:52:47 +02:00
Christian Schneider
ff138f39f7 Merge branch 'master' into intense-mode-speedup 2017-08-24 17:58:02 +02:00
Christian Schneider
cfa602c1ce Better decisions for partial matches 
- Ratio of recompressed ratio to decompressed ratio is a good indicator
 2017-08-24 07:09:58 +02:00
Christian Schneider
d4b0a8e58a Use a histogram in brute mode 
- Prevent false positives that slow down brute mode by using a histogram that filters data too redundant for a deflate stream
 2017-08-21 06:54:43 +02:00
Christian Schneider
a1b66f585d Merge pull request #64 from MarcioPais/master 
JPG parsing corrected and faster
Fix issues #5 and #24
 2017-08-17 07:02:31 +02:00
Márcio Pais
0315bb1cf9 Fix issues #5 and #24 2017-08-14 12:36:20 +01:00
Christian Schneider
6a6dea54a3 Both brute and intense mode can be active 2017-08-14 07:11:58 +02:00
Christian Schneider
b8dffbbba6 Both brute and intense mode can be active 2017-08-14 07:01:31 +02:00
Christian Schneider
b63677c4d9 Skip uncompressed zlib blocks (BTYPE = 00) in brute mode 
- They can be useful in slow mode, but in brute mode, there are short false positive that can cause massive slowdown
 2017-08-13 11:09:44 +02:00
Christian Schneider
9303a0b951 Don't skip uncompressed zlib blocks (BTYPE = 00) 
- These are often used in combination with static/dynamic BTYPE blocks, so they have to be processed, too.
 2017-08-04 06:58:54 +02:00
Christian Schneider
2fcb7fe896 Check for "final compression found" improved 
- identical compressed size must be the same, too
- before, there were cases where everything was decompressed, but identical compressed size was smaller than it could be with other combinations
- improves compression ratio for some files
 2017-08-04 06:54:56 +02:00
Christian Schneider
2ed93fd799 Useless code line removed 
- final_compression_found is set to false in init_decompression_variables() already
 2017-07-31 12:03:29 +02:00
Christian Schneider
aed3a94c0f Comment adjusted 2017-07-30 10:29:11 +02:00
Christian Schneider
f939c8254b Minimal decompressed size in brute mode adjusted 
- Using 1024 bytes instead of 256 bytes is much faster and still detects most relevant streams
 2017-07-30 10:28:05 +02:00
Christian Schneider
843df069d1 "Intense" instead of "slow" (mode) 2017-07-29 11:27:17 +02:00
Christian Schneider
3a06e3ca46 Use intense/brute mode helper functions 
- Also remove old code that disabled intense mode in general if brute mode was enabled
 2017-07-29 11:25:58 +02:00
Christian Schneider
6739bd942e Helper functions for intense/brute mode 
- We don't want both active (since brute mode detects everything that intense mode detects), but they can have different recursion depth limits, so helper functions helps keeping things clean
 2017-07-29 11:22:09 +02:00
Christian Schneider
796a44ed00 Consistently use "intense mode" 
- Some variables and comments still use the old term "slow mode"
 2017-07-29 11:10:27 +02:00
Christian Schneider
9dd8029bbd At least 256 decompressed bytes in brute mode 2017-07-28 10:47:57 +02:00
Christian Schneider
f50f26dfb0 Intense and brute ignore offsets as pointer 
- Simplifies recursion code
 2017-07-28 10:37:08 +02:00
Christian Schneider
3e60ff474f Ignore offsets in intense/brute mode 
- Offsets where streams of type PNG, ZIP, SWF, gZip, PDF have already been analyzed and got "No matches" are skipped in intense and brute mode as they'd lead to the same result but take the same time.
 2017-07-27 15:11:21 +02:00
Christian Schneider
fac05e19de Merge branch 'master' into intense-mode-speedup 2017-07-24 13:00:10 +02:00
Christian Schneider
bdee02f9c7 Compression_Types_Disable for comfort mode 
- more consistent to -t+/-t-
- makes -t- recommendation easier
 2017-07-24 12:59:43 +02:00
Christian Schneider
8f5c6b4709 Merge branch 'master' into intense-mode-speedup 2017-07-24 11:38:59 +02:00
Christian Schneider
3f973a2e44 Merge pull request #62 from schnaader/pr/61 
preserve input file name
 2017-07-24 11:35:33 +02:00
Christian Schneider
39333197f3 Lower case -t- recommendation 2017-07-24 11:15:48 +02:00
Christian Schneider
1c2cf7615f -t- recommendation for decompressed_count > 0 only 
- Recommandation should be displayed when recompressed count is zero, but decompressed count is higher (e.g. 0/5 PNG). This way, only disabling the streams that actually slowed down processing is recommened (0/0 streams don't slow down the process)
 2017-07-24 11:13:20 +02:00
Christian Schneider
78ed8160d2 Boolean operator fix 
- Same boolean operator for PDF as for all others
 2017-07-24 11:03:28 +02:00
Christian Schneider
b5da5d17b6 Some corrections for -t- recommendation 
- GIF is F, not G
- Order changed (MP3 last) to match Precomp syntax order for -t
 2017-07-24 11:02:31 +02:00
Christian Schneider
6bfe8a154f Remove "#define COMFORT" leftover 2017-07-24 10:54:41 +02:00
guptaprince8832
d596c0f603 Speed up recommendations with -t- options 2017-07-17 22:42:49 +05:30
guptaprince8832
1a8cbd3eb3 preserve input file name 2017-07-17 21:45:14 +05:30
Christian Schneider
e003b02784 Check BTYPE 
- prevents uncompressed deflate chunks and the ones with "BTYPE = 11 (reserved (error))" to be processed
- speeds up brute mode on some data
 2017-07-03 08:38:28 +02:00
Christian Schneider
5cdacad8b3 "Less than 32 bytes" test in memory 
- check_inf_result returns bool
- Don't show a message about it in debug mode
 2017-07-02 11:43:09 +02:00