Commit Graph

15 Commits

Author SHA1 Message Date
Minty-Meeo deba9ce256 Added a way to check Block Size, Compression Method, and Compression Level flags to dolphin-tool
New dolphin-tool command: "header"
-b / --block_size
-c / --compression
-l / --compression_level

Informative RVZ/WIA header2 value "compression_level" is now a s32 instead of a u32, because negative compression is a thing.

Speaking of, it is now possible to use negative compression levels in dolphin-tool's convert command (not the GUI, though).
2022-03-19 17:13:28 -05:00
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
Shawn Hoffman 84128d9532 rename Common/File to Common/IOFile 2021-01-27 14:29:48 -08:00
JMC47 c8c4ec28ce
Merge pull request #8644 from JosJuice/rework-tgc
DiscIO: Rework the implementation of TGC reading
2020-09-06 07:06:26 -04:00
JosJuice d494e0230c Show file format details in game properties 2020-06-21 20:47:23 +02:00
JosJuice 75d032161f DiscIO: Rework the implementation of TGC reading
Fixes https://bugs.dolphin-emu.org/issues/10654.

To quote the documenation file included with the program tgctogcm:

"TGC's are miniaturized .gcm images with a 32kB header.
The embedded gcm contains some bogus data, namely:
-FST Location (0x424 in gcm)
-DOL Location (0x420 in gcm)
-FST File offsets (all files are offset/spoofed by a certain amount)"

Dolphin has been handling the values at 0x420 and 0x424 by simply
overwriting them with a working value (just like tgctogcm does),
but it has used a different approach for the file offsets in the FST.
Instead of changing the offsets that are stored in the FST, Dolphin
changed where the files actually are placed on the virtual disc.
My hope was that this would make the loading times more accurate to
how they are when running a TGC file as part of a larger disc.
However, there are TGC files where we would need to move files
backwards on the disc in order to do this (this is what issue
10654 is about), so the approach we have been using is flawed.

This change makes Dolphin overwrite offsets in the FST instead, like
tgctogcm does. Other than making Dolphin handle the affected TGC files
correctly, this change also makes it so that unnecessary padding data
isn't written if you use Dolphin to convert a TGC file to an ISO file.
This feature is not actually implemented in Dolphin as of now, but I'm
planning to add it in the near future as part of a larger feature.
2020-06-17 12:32:39 +02:00
JosJuice 162e3be82b Show an OSD message when running a disc image with a large block size
This is intended to catch WIA files which have been created using
wit's default parameters (40 MiB block size), once the WIA PR is
merged. The check does however also work for GCZ files – not that
I think anyone has a GCZ file with a block size that large.
2020-06-07 14:11:00 +02:00
JosJuice 3014dadfa8 DiscIO: Add way of checking whether blob data size is accurate 2019-03-30 12:45:17 +01:00
JosJuice 0023d5b5cb TGCBlob: Make m_file_area_shift signed
Part two of fixing TGC files where file_area_virtual_offset is
smaller than file_area_real_offset, such as Zelda OoT Master Quest.
2017-10-08 12:30:53 +02:00
JosJuice ec7ed7b47a TGCBlob: Improve variable names 2017-10-08 12:08:13 +02:00
JosJuice f09ceaa735 Move IOFile to a separate file
Reduces the number of files that need to be recompiled
when making changes to FileUtil.h.
2017-06-15 21:33:50 +02:00
JosJuice b2af07a7b7 DiscIO: Remove C/I/S prefixes from class names
These prefixes were inconsistent with the rest of Dolphin.

I'm also renaming VolumeWiiCrypted to VolumeWii because of 1113b13.
2017-06-06 12:31:59 +02:00
JosJuice 8d54bbc528 Don't create new IOFiles when creating a blob
...except for WBFS, which is special because
it has the ability to open multiple files.
2017-01-11 13:23:23 +01:00
JosJuice d1ea00ed88 Only open file once when detecting blob type 2017-01-11 13:23:19 +01:00
JosJuice 9bd514ed1c Add TGC disc image compatibility 2016-12-18 18:57:36 +01:00