Commit Graph

8 Commits

Author SHA1 Message Date
Shawn Hoffman dd29a54cf6 introduce wrapper for SHA1 functionality 2022-07-26 22:16:37 -07:00
Pierre Bourdon e149ad4f0a
treewide: convert GPLv2+ license info to SPDX tags
SPDX standardizes how source code conveys its copyright and licensing
information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX
tags are adopted in many large projects, including things like the Linux
kernel.
2021-07-05 04:35:56 +02:00
Léo Lam 1a9e72c9bb
DiscIO: Use MathUtil::SaturatingCast 2021-04-06 23:27:23 +02:00
Sergei Trofimovich af2a881a85 Source/Core/DiscIO/WIACompression.cpp: add missing <limits> include
Noticed missing include as a build failure on gcc-11:

```
[ 26%] Building CXX object Source/Core/DiscIO/CMakeFiles/discio.dir/WIACompression.cpp.o
../../../../Source/Core/DiscIO/WIACompression.cpp: In lambda function:
../../../../Source/Core/DiscIO/WIACompression.cpp:170:31: error: 'numeric_limits' is not a member of 'std'
  170 |         std::min<size_t>(std::numeric_limits<unsigned int>().max(), x));
      |                               ^~~~~~~~~~~~~~
../../../../Source/Core/DiscIO/WIACompression.cpp:170:46: error: expected primary-expression before 'unsigned'
  170 |         std::min<size_t>(std::numeric_limits<unsigned int>().max(), x));
      |                                              ^~~~~~~~
```

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
2020-10-15 19:56:53 +01:00
JosJuice 3feea108db DiscIO: Decrease RAM usage during zstd compression
By calling ZSTD_CCtx_setPledgedSrcSize, we can let zstd know
how large a chunk is going to be before which start compressing
it, which lets zstd avoid allocating more memory than needed
for various internal buffers. This greatly reduces the RAM usage
when using a high compression level with a small chunk size,
and doesn't have much of an effect in other circumstances.

A side effect of calling ZSTD_CCtx_setPledgedSrcSize is that
zstd by default will write the uncompressed size into the
compressed data stream as metadata. In order to save space,
and since the decompressed size can be figured out through
the structure of the RVZ format anyway, we disable writing
the uncompressed size by setting ZSTD_c_contentSizeFlag to 0.
2020-10-07 16:40:06 +02:00
JosJuice f7c32bc04e RVZ: Fix split seed reads
This could cause read errors if chunks were laid out a certain
way in the file and the whole chunk wasn't being read at once.
Should fix https://bugs.dolphin-emu.org/issues/12184.
2020-07-11 17:45:16 +02:00
JosJuice 224c6e799d RVZ: Extend GroupEntry 2020-06-17 13:48:45 +02:00
JosJuice ca4e4a6207 WIA/RVZ: Move (de)compression to a different file 2020-06-17 13:48:45 +02:00