Commit Graph

37 Commits

Author SHA1 Message Date
03cfb01942 Simplify one of the cases in transaction composition. 2023-10-23 18:54:04 +02:00
f8ba027c38 Hash: use optimized rotation constants.
Also use random constants for the initial hash state.  Changed my
mind about using zero initialization.  It doesn't make a practical
difference, but helps esnure that the mixing is randomized.
2022-09-03 20:59:10 -07:00
776438e866 Hash: convert to hex string in a simpler way. 2022-09-02 21:59:34 -07:00
e81beb733e Add one more test for the hash. 2022-08-29 19:16:58 -07:00
c585e38a54 Hash: start with a state of zero.
This doesn't affect the quality of the hash at all, and an empty
message hashing to zero is kind of nice.
2022-08-29 18:47:31 -07:00
03e78299c6 Use hash perf leeway from prior commits to make the hash higher quality.
When incorporating a data block into the hash, it now does enough
mixing rounds to flip on average about 110 bits for any bit flipped
by the data block.

This reduces performance again, but not all the way to what they
were before.  It's still reasonably fast, hashing at around 6-7 GB/s.
2022-08-25 23:54:03 -07:00
e25e28d88b Slightly easier-to-modify hash code. 2022-08-25 19:56:38 -07:00
7d7ab1acf1 Significant speed up to the hash.
It can now hash data at 9-10 GiB/s.
2022-08-25 16:27:43 -07:00
a41e1dd7de Add benchmarks for LedHash256, and tweak for performance.
Also benchmark against Blake3.
2022-08-24 18:45:36 -07:00
3f3cf5dd3a Switch other backend code over to use transactions. 2022-08-23 12:30:14 -07:00
696ecb732d Implemented Transaction composition. 2022-08-22 21:10:28 -07:00
19fa7b6abe Start implementing transaction composition. 2022-03-26 06:04:17 -07:00
f3c12d6cee More work on Transaction. 2021-11-14 14:33:52 -08:00
f9415d915f Merge branch 'master' of github.com:cessen/led 2021-11-14 11:36:16 -08:00
51a86dcfdc Beginnings of a Transaction type. 2021-11-14 11:35:25 -08:00
88c7ded976 Update dependencies to latest versions. 2021-06-16 11:27:47 -07:00
27572c8838 More code cleanup of the hash. 2020-02-24 13:31:17 +09:00
4e435732d7 Cleaned up the hash implementation a bit. 2020-02-24 13:09:49 +09:00
dc9b3dd5c3 Removed all but one unsafe call from the hasher. 2020-02-24 12:50:18 +09:00
c38c83a8b5 Reduced the set of tests for the hash function.
Also added a couple new ones to test possible edge cases.
2020-02-24 12:33:36 +09:00
e810503e56 Slight tweak to the hash function.
The last swap isn't actually needed, and this makes the implementation
cleaner for different numbers of rounds if we want to tweak that
later.
2020-02-24 10:18:58 +09:00
905ff2c301 Cleaned up the hash implementation and made it endian-clean. 2020-02-24 10:09:13 +09:00
e1d91ff43d Move filepath into the Buffer struct. 2020-02-24 07:35:04 +09:00
4544efb299 Undo/redo wasn't marking the buffer as dirty. Fixed. 2020-02-23 20:14:13 +09:00
4a33750a6b Fix minor bug from the move to the new buffer. 2020-02-23 20:10:30 +09:00
c4fa72405f Switch to new backend buffer for text, cursor, and undo management. 2020-02-23 19:56:08 +09:00
6077be2dfd Add convenience fn's and impls for iterating and indexing MarkSets. 2020-02-23 16:24:41 +09:00
4267334303 Finish the bare-bones undo/redo system. 2020-02-23 15:37:16 +09:00
0c887d1eb9 Beginnings of an undo system for the new backend.
Just going to keep it stupid and simple for now.  More
sophisticated undo functionality can be added in the future.
2020-02-22 18:00:28 +09:00
c3bfdf7a7f Add Mark and MarkSet types for managing cursors etc.
Originally I was using just `(usize, usize)` for marks, and `Vec`s
of those for sets.  But that was already becoming unwieldy even for
really basic code.  This abstracts just a handful of common
operations away to make this easier to reason about.  However,
the internals are (intentionally) left exposed to allow other fiddly
things to be done.
2020-02-11 11:35:31 +09:00
fb1996c21a Have buffers store marks ranges.
This is very WIP.  The intent is for these to be used for e.g.
cursors, screen positions, etc.  The intent is for the buffer
itself to keep them synced properly with the actual text on edits,
although this is not yet implemented.
2020-02-01 11:17:08 +09:00
f94fc0408f Updated most dependencies to latest version.
Holding off on smallvec since there's an API break.
2020-01-23 18:57:34 +09:00
dab1c9ed1b Updated to Rust 2018.
No functional changes.
2020-01-23 18:47:27 +09:00
f0a44ab300 More work on the backend, including adding data hashing code. 2020-01-22 10:17:56 +09:00
540803e0ee Update dependencies. 2019-09-01 11:40:02 +09:00
6f4e619263 Update dependencies, including Ropey -> 1.0. 2019-01-06 17:38:44 -08:00
0ee183aa72 WIP creating a clean frontend/backend separation.
- Started work on writing a new backend.
- Started work on writing text encoding handling.
2018-08-17 20:34:43 -07:00