Commit Graph

21 Commits

Author SHA1 Message Date
Filoppi 1badceb455 ControllerInterface: fix UpdateReferences() deadlock
Removed useless locks to DeviceContainer::m_devices_mutex, as they were all already protected by m_devices_population_mutex.
We have no interest in blocking other threads that were potentially reading devices at the same time so this seems fine.
This simplifies the code, and I've adjusted a few comments which mentioned possible deadlock that should now be totally gone.

The deadlock could have happen if a thread directly called EmulatedController::UpdateReferences(), while another another thread also reached EmulatedController::UpdateReferences() within a call to ControllerInterface::UpdateDevices(), as the mentioned function locked both the DeviceContainer::m_devices_mutex and s_get_state_mutex at the same time.

The deadlock was frequent on game emulation startup on Android, due to the UpdateReferences() call in InputConfig::LoadConfig() and the UI thread triggering calls to ControllerInterface::UpdateDevices().
It could also have happened on Desktop if a user pressed "Refresh Devices" manually in the UI while the input config was loading.

Also brought some UpdateReferences() comments and thread safety fixes from https://github.com/dolphin-emu/dolphin/pull/9489
2021-11-20 16:54:36 +02:00
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
Filoppi 93e3e691f9 Expose Control Expression variables to mappings UI
-add a way to reset their value (from the mappings UI)
-fix "memory leak" where they would never be cleaned,
one would be created every time you wrote a character after a "$"
-fix ability to create variables with an empty string by just writing "$" (+added error for it)
-Add $ operator to the UI operators list, to expose this functionality even more
2021-05-24 02:38:06 +03:00
iwubcode 32d584a0f5 InputCommon: reduce number of image loads and texture cache invalidations by only running dynamic input textures once for all controllers 2021-02-27 17:29:48 -06:00
iwubcode fd3af4c5d3 InputCommon: Introducing the "Dynamic Input Texture". Configuration links an emulated input action to an image based on what host key is defined for that emulated input. Specific regions are called out in configuration that mark where to replace an input button with a host key image. 2020-10-03 17:10:35 -05:00
Jordan Woyak 0a1634bedf InputCommon: Allow Wii remote extension to be set with an input expression. 2020-02-08 16:03:13 -06:00
Jordan Woyak e8152b700f InputCommon: Allow controller settings specified with input expresions. 2020-02-08 14:01:55 -06:00
Jordan Woyak b4e2b3cae3 ControllerEmu: Don't clear expression variables on references update. Hotplug would make that problematic. 2019-10-11 19:42:49 -05:00
Jordan Woyak 35e51ebbaa ExpressionParser: Clear expression variables on UpdateReferences call. I don't know if this is most sensible. 2019-10-11 17:14:45 -05:00
Jordan Woyak e896835f86 ExpressionParser: Renamed ControlFinder to ControlEnvironment. Added support for variables and assignment operator. ControlExpression objects now reference a matching input and output so the two can me mixed in any expression. (you can set rumble directly from inputs) 2019-10-11 17:14:32 -05:00
Jordan Woyak 99f537d499 WiimoteEmu/DolphinQt: Better extension display names. 2019-05-01 17:25:48 -05:00
Jordan Woyak 0d1fbe7bbc WiimoteEmu: Major renaming and cleanup. 2019-02-02 19:40:31 -06:00
Michael Maltese c62d83a34b GCPadEmu: only connected if default device connected
This lets Dolphin know if a configured GameCube Controller should actually
be treated as connected or not.

Talked to @JMC47 a bit about this last night. My use-case is that all of
my controllers are the same hardware (Xbox One controllers) so share the
same configuration (modulo device number). Treating them all as always
connected isn't a problem for most games, but in some (Smash Bros.) it
forces me to go find a keyboard/mouse and unconfigure any controllers
that I don't actually have connected. Hotplugging devices (works on macOS,
at least) + this patch remove my need to ever touch the Controller Config
dialog while in a game.

This patch makes the following changes:

- A new `BooleanSetting` in `GCPadEmu` called "Always Connected", which
  defaults to false.
- `ControllerEmu` tracks whether the default device is connected on every
  call to `UpdateReferences()`.
- `GCPadEmu.GetStatus()` now sets err bit to `PAD_ERR_NO_CONTROLLER` if
  the default device isn't connected.
- `SIDevice_GCController` handles `PAD_ERR_NO_CONTROLLER` by imitating the
  behaviour of `SIDevice_Null` (as far as I can tell, this is the only use
  of the error bit from `GCPadStatus`).

I wanted to add an OSD message akin to the ones when Wiimotes get
connected/disconnected, but I haven't yet found where to put the logic.
2017-11-19 16:07:00 +01:00
Michael M 1b1dd1d749 EmulatedController: encapsulate default device behind getters/setters 2017-11-04 17:08:55 -07:00
Lioncash 14c81764df ControllerEmu: Replace includes with forward declarations
Replaces includes with forward declarations where applicable, and moves
includes to where they're actually needed.
2017-04-04 20:38:30 -04:00
Lioncash 26f17a1723 ControlGroup: Convert group type enum into an enum class
Gets some constants out of the ControllerEmu namespace, and modifies
ControlGroup so that it uses the enum type itself to represent the
underlying type, rather than a u32 value.
2017-02-25 01:15:04 -05:00
Lioncash 98145d2160 ControllerEmu: Add const to UpdateReferences() first reference parameter
None of these parameters are modified.
2017-02-11 00:31:49 -05:00
Lioncash 6a75ea5653 ControllerEmu: Separate ControlGroup from ControllerEmu
ControllerEmu, the class, is essentially acting like a namespace for
ControlGroup. This makes it impossible to forward declare any of the
internals. It also globs a bunch of classes together which is kind of a
pain to manage.

This splits ControlGroup and the classes it contains into their own source
files and situates them all within a namespace, which gets them out of
global scope.

Since this allows forward declarations for the once-internal classes, it
now requires significantly less files to be rebuilt if anything is changed
in the ControllerEmu portion of code.

It does not split out the settings classes yet, however, as it
would be preferable to make a settings base class that all settings derive
from, but this would be a functional change -- this commit only intends to
move around existing code. Extracting the settings class will be done in
another commit.
2017-02-09 18:18:52 -05:00
Lioncash 56531a0b7f ControllerEmu: Fix incorrect default radius being set in AnalogStick
The three parameter AnalogStick constructor takes an internal name, a
display name, and a default radius argument. The delegated constructor is
the one that calls the ControlGroup constructor, setting the group type,
so passing the group type here is a logic bug.

The only reason this appeared to work despite this bug is because
GROUP_TYPE_STICK has a value of 1, and the default radius value used for
attachment sticks is 1.0.
2017-02-08 23:08:13 -05:00
Michael Maltese a509f56116 InputCommon: Extract ControlReference from ControllerInterface
Better separation of concerns. Relegates `ControllerInterface` to
enumerating input controls, and the new `ControlReference` deals with
combining inputs and configuration expression parsing.
2017-02-07 22:59:10 -08:00
Lioncash 3a66f2c008 ControllerEmu: Move into its own directory
ControllerEmu is a massive class with a lot of nested public classes.

The only reason these are nested is because the outer class acts as a
namespace. There's no reason to keep these classes nested just for that.

Keeping these classes nested makes it impossible to forward declare them, which leads to quite a few includes in other headers, making compilation take
longer.

This moves the source files to their own directory so classes can be
separated as necessary to their own source files, and be namespaced under the
ControllerEmu namespace.
2017-02-07 22:12:06 -05:00