The OPL2LPT is an OPL2 chip plugged on a parallel port. It is
write-only but otherwise acts as a classic AdLib. This commit adds
support for this device.
User is expected to have the right permissions on the parallel
port. By default, the first suitable parallel port is used. It is
possible to override that with the hidden configuration setting
"opl2lpt_parport".
It depends on the presence of the libieee1284 library which abstracts
a bit parallel port handling. An alternative would be to access
directly /dev/parportX on Linux. This would amount of code but it
would be Linux-only.
Tested with Indy 3 and SOMI.
Previously, a C-style cast was used to convert a
Common::Array<Plugin *>, populated with pointers to StaticPlugin
and DynamicPlugin instances, to a
Common::Array<PluginSubclass<T> *>, but PluginSubclass<T> is a
*sibling* class to StaticPlugin/DynamicPlugin, so this cast was
invalid and the results undefined. The methods for retrieving
subclasses of plugins can't be easily changed to just generate an
array of temporary wrapper objects that expose an identical API
which dereferences to the preferred PluginObject subclass because
pointers to these objects are retained by other parts of ScummVM,
so the wrappers would needed to be persisted or they would need to
just re-expose the underlying Plugin object again. This indicated
that a way to solve this problem is to have the callers receive
Plugin objects and get the PluginObject from the Plugin by
explicitly stating their desired type, in a similar manner to
std::get(std::variant), so that the pattern used by this patch to
solve the problem.
Closes gh-1051.
New semantics is as follows:
[-p <dir>] --add adds all games in <dir> or
working dir
[-p <dir>] --detect enumerates dectected games in
<dir> with their ids
[-p <dir>] --game <id> --add adds just game <id> if found
in <dir> and not already added
[-p <dir>] --recursive --add adds all games in <dir> and
subdirs if not already added
[-p <dir>] --recursive --game <id> --add
adds just game <id> if found
in <dir> or its subdirs and
not already added
[-p <dir>] --recursive --detect enumerates games in <dir>
and subdirs
[-p <dir>] --auto-detect launches the first game
found in <dir>
[-p <dir>] --recursive --auto-detect
displays error message
The reason for the displaying an error message when attempting to do
autodetection on a whole tree is mainly one of UX, IMO it *might* get
confusing on a sufficiently large/deep tree.
The relevant if() can be removed safely if it's concluded that's not the
case.
This implements the behaviour as discussed in PR926:
https://github.com/scummvm/scummvm/pull/926#discussion_r126132411
Essentially:
[-p <dir>] --add adds all games in <dir> or working dir
[-p <dir>] --detect enumerates dectected games with their
ids
[-p <dir>] --game <id> --add adds just game <id>
This fixes tons of warnings with clang from a recent xcode version on
macOS (and possibly other systems) complaining that an instantiation
of _singleton is required but no definition is available.
There were several issues.
The first one was introduced recently and caused the preferred target
to be used as a game ID, which resulted in an error when this is not
a valid game ID. Thus this fixes bug #9754.
The other issues were here since the auto-detect command was added and
caused other command line options, suh as the path, to be lost. This
usually resulted in a failure to start the game as the data files could
not be found (unless the ID happened to be the same name as a target
previously added). This also caused a reappearance of the old bug
This is automatically added by Xcode when not toggling off the
"Allow debugging when using document Versions Browser". Since
this is on by default, and to avoid everybody having to google it,
I have decided to just ignore it on OS X.
Allows to display games in the current directory that are compatible with ScummVM.
This option enables the user to find games in the directory from which ScummVM was launched. In terminal it looks like:
--------------------------------------------------------------------------------------
$ scummvm --auto-detect
ID Description
-------------------- ---------------------------------------------------------
drascula Drascula: The Vampire Strikes Back (DOS/English)
queen Flight of the Amazon Queen (Talkie/DOS/English)
--------------------------------------------------------------------------------------
The current directory is defined as dir(".") then using EngineMan.detectGames to recognise games.
Registering the OSDMessageQueue instance as an event source is now done
right after the event manager is initialised. This ensures that it is created in a
sensible place and not for example in another thread). Also registering the
event source is moved to a separate function instead of being in the constructor
to remove any issue in case some code tries to display a OSD Message very early
on (the instance would be created then, but it would be registered as an event
source later).
