5bc63794cc
fix takeBitsEnding
2025-07-31 22:10:11 -07:00
63f496c4f9
make takeBits deal with integers only
2025-07-31 22:10:11 -07:00
c00fb86db6
fix peekBitsEnding
2025-07-31 22:10:11 -07:00
8ab91a6fe9
error.EndOfStream disambiguation
2025-07-31 22:10:11 -07:00
f644f40702
implement tossBitsEnding
2025-07-31 22:10:11 -07:00
2d8d0dd9b0
std.compress.flate.Decompress: unfuck the test suite
2025-07-31 22:10:11 -07:00
c684b21b4f
simplify test cases
2025-07-31 22:10:11 -07:00
ac4fbb427b
std.compress.flate.Decompress: don't compute checksums
...
These have no business being in-bound; simply provide the expected
values to user code for maximum flexibility.
2025-07-31 22:10:11 -07:00
5f571f53d6
refactor gzip test cases
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zig newbies love using for loops in unit tests
2025-07-31 22:10:11 -07:00
e73ca2444e
std.compress.flate.Decompress: implement peekBitsEnding and writeMatch
2025-07-31 22:10:11 -07:00
7bf91d705c
fix bit read not at eof
2025-07-31 22:10:11 -07:00
73e5594c78
std.compress.flate.Decompress: fix bit read at eof
2025-07-31 22:10:11 -07:00
9c8cb777d4
std.compress.flate.Decompress: implement more bit reading
2025-07-31 22:10:11 -07:00
6509fa1cf3
std.compress.flate.Decompress: passing basic test case
2025-07-31 22:10:11 -07:00
88ca750209
std.compress.flate.Decompress: add rebase impl
2025-07-31 22:10:11 -07:00
1b43551190
std.Io: remove BitWriter
2025-07-31 22:10:11 -07:00
824c157e0c
std.compress.flate: finish reorganizing
2025-07-31 22:10:11 -07:00
a4f05a4588
delete flate implementation
2025-07-31 22:10:11 -07:00
83513ade35
std.compress: rework flate to new I/O API
2025-07-31 22:10:11 -07:00
cf7a28febb
std.Io.Reader: introduce readVec back into the VTable
...
simplifies and fixes things
addresses a subset of #24608
2025-07-30 09:26:34 -07:00
1fcaf90dd3
std.Io.Reader: make fillUnbuffered respect prexisting buffer
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addresses only one usage pattern in #24608
2025-07-29 23:10:50 -07:00
bb29846732
std.compress.xz: eliminate dependency on std.Io.bitReader
2025-07-27 22:08:52 -07:00
04614d6ea1
std.Io.Reader: add rebase to the vtable
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This eliminates a footgun and special case handling with fixed buffers,
as well as allowing decompression streams to keep a window in the output
buffer.
2025-07-26 20:00:25 -07:00
8752d80c84
std.compress.zstd.Decompress: fix bytes_written tracking
2025-07-25 14:15:33 -07:00
7f43f78b5b
std.compress.zstd: keep frame state between blocks
2025-07-25 14:15:33 -07:00
13e08ea6f0
std.compress.zstd: fix endianness issue
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instead of manually bitcast, use the handy dandy takeStruct function.
2025-07-25 14:15:33 -07:00
ee4f5b3f92
std.compress.zstd: respect the window length
2025-07-25 14:15:33 -07:00
3687eada6a
std: rework zstd for new I/O API
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This passes tests but it doesn't provide as big a window size as is
required to decompress larger streams.
The next commit in this branch will work towards that, without
introducing an additional buffer.
2025-07-25 14:15:33 -07:00
9f27d770a1
std.io: deprecated Reader/Writer; introduce new API
2025-07-07 22:43:51 -07:00
d034f2a87b
std.compress.zstd: ensure window size fits into usize
2025-03-31 17:22:44 +11:00
7a7d6a02a5
std.compress.zstd: fix OOB access in literal decode
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When decoding the literals section of a compressed block, the length of
the regenerated size of the literals must be checked against the buffer
literals are decoded into.
2025-03-31 17:22:44 +11:00
8e074f1549
std: remove dependencies on legacy coercion
2025-02-26 00:17:09 +00:00
a3ad0a2f77
std.compress.flate.Lookup: Replace invisible doc comments with top-level doc comments
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I think it would be better if this invisible doc comments is top-level
doc comments rather than doc comments. Because it is at the start of a
source file. This makes the doc comments visible.
2025-01-22 23:34:57 +09:00
09d021c908
add test coverage for previous commit
2025-01-20 21:41:30 -08:00
d50bae4da9
Fix memcpy alias bug in std.compress.lzma
2025-01-20 21:41:12 -08:00
ba569bb8e9
Rewrite bit_reader and bit_writer to take advantage of current zig semantics and enhance readability ( #21689 )
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Co-authored-by: Tanner Schultz <tgschultz@tgschultz-dl.tail7ba92.ts.net >
2024-10-13 18:44:42 -07:00
0fe3fd01dd
std: update std.builtin.Type fields to follow naming conventions
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The compiler actually doesn't need any functional changes for this: Sema
does reification based on the tag indices of `std.builtin.Type` already!
So, no zig1.wasm update is necessary.
This change is necessary to disallow name clashes between fields and
decls on a type, which is a prerequisite of #9938 .
2024-08-28 08:39:59 +01:00
13070448f5
std: fix typos ( #20560 )
2024-07-09 14:25:42 -07:00
642093e04b
Rename *[UI]LEB128 functions to *[UI]leb128
2024-06-23 04:30:12 +01:00
d4d1efeb3e
std.compress.flate: fix panic when reading into empty buffer
2024-05-09 15:51:42 -07:00
791c4491a7
compress.xz: remove unnecessary variable
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`to_read.items.len is always zero when entering readBlock.
2024-03-13 18:43:36 +01:00
54f882c4aa
compress.xz: make reader loop little more readable
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No need to do same error check on two places. First return all
uncompressed data then on last read check error.
2024-03-13 18:41:20 +01:00
a21f9b6d8b
compress.xz: remove copyForwards from tight loop
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In the example from the issue #19052 to_read holds 213_315_584
uncompressed bytes. Calling read with small output results in many
shifts of that big buffer.
This removes need to shift to_read after each read.
2024-03-13 18:22:08 +01:00
a06a305f97
zlib: fix missing comptime attribute
2024-03-04 09:53:01 +01:00
c680b5d138
compress.zlib: add overshoot test cast
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Using example from [zigimg](https://github.com/zigimg/zigimg/pull/164 ) project.
2024-03-04 09:53:01 +01:00
f2508abfa6
flate: use 4 bytes lookahead for zlib
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That ensures no bytes are left in the BitReader buffer after we reach
end of the stream.
2024-03-04 09:53:01 +01:00
711281602a
flate: option to fill BitReader
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fill(0) will fill all bytes in bit reader. If bit reader is aligned to
the byte, as it is at the end of the stream this ensures no overshoot
when reading footer. Footer is 4 bytes (zlib) or 8 bytes (gzip). For
zlib we will use 4 bytes BitReader and 8 for gzip. After align and fill
we will read those bytes and leave BitReader empty after that.
2024-03-04 09:53:01 +01:00
8a963fd66e
flate: 32 bit BitReader
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Extend BitReader to accept size of internal buffer. It can be u64 (only
option until now) or u32.
2024-03-04 09:53:01 +01:00
6e078883ee
Expand the memcpy fast path in flate.CircularBuffer.writeMatch to allow for overlapping regions.
2024-02-27 21:26:26 -08:00
62ce753814
compress: activate tests in wasm32
...
They were disabled because insufficient stack size.
That is
[changed](https://github.com/ziglang/zig/commit/d51aa9748f9e4e3616328a207a8047ff37d81f8b ) now.
2024-02-27 19:19:59 -08:00
Andrew Kelley