Commit Graph

34 Commits

Author SHA1 Message Date
Sam Lantinga
fcb21aa883 Added API for sensors on game controllers
Added support for the PS4 controller gyro and accelerometer on iOS and HIDAPI drivers

Also fixed an issue with the accelerometer on iOS having inverted axes
2020-11-17 10:30:20 -08:00
Sam Lantinga
d140d88744 Added SDL_JoystickGetSerial() and SDL_GameControllerGetSerial() 2020-11-16 17:36:47 -08:00
Sam Lantinga
9f51fad361 Added support for the touchpad on PS4 and PS5 controllers 2020-11-13 18:01:29 -08:00
Sam Lantinga
1e2caac58b Added SDL_JoystickRumbleTriggers() and SDL_GameControllerRumbleTriggers() 2020-11-11 18:57:37 -08:00
Sam Lantinga
f656d8456e Fixed typo in the documentation 2020-11-09 10:29:10 -08:00
Sylvain Becker
b198febb62 Documentation: fix minor gamecontroller parameter warning 2020-11-08 10:22:27 +01:00
Sam Lantinga
009b62f1c2 Be explicit about mapping the new game controller paddle buttons 2020-11-07 02:22:15 -08:00
Sam Lantinga
3a4388489a Document the Xbox One Elite paddle buttons 2020-11-06 17:06:41 -08:00
Sam Lantinga
9a446aa92e Note that SDL_CONTROLLER_BUTTON_AUX1 is sent for the PS4/PS5 touchpad button on the HIDAPI driver. 2020-11-06 13:55:51 -08:00
Sam Lantinga
3a3aaac221 Added 4 auxiliary buttons to the game controller API
Xbox Elite controllers use AUX1-AUX4 to represent the paddle buttons when using the HIDAPI driver
PS4 and PS5 controllers use AUX1 to represent the touchpad button
Nintendo Switch Pro controllers use AUX1 to represent the capture button
2020-11-06 11:30:52 -08:00
Sam Lantinga
4d79f9662f Added initial support for the Sony PS5 Controller 2020-11-05 15:02:54 -08:00
Sam Lantinga
e555d45331 Added SDL_JoystickHasLED
Currently, this is only supported by the PS4 HIDAPI driver.
2020-11-05 11:07:54 -08:00
Ethan Lee
83cddd2ebc Add SDL_JoystickSetLED.
Currently, this is only supported by the PS4 HIDAPI driver.
2020-04-30 11:57:29 -04:00
Sam Lantinga
2be75c6a61 Fixed bug 5028 - Virtual Joysticks (new joystick backend)
David Ludwig

I have created a new driver for SDL's Joystick and Game-Controller subsystem: a Virtual driver.  This driver allows one to create a software-based joystick, which to SDL applications will look and react like a real joystick, but whose state can be set programmatically.  A primary use case for this is to help enable developers to add touch-screen joysticks to their apps.

The driver comes with a set of new, public APIs, with functions to attach and detach joysticks, set virtual-joystick state, and to determine if a joystick is a virtual-one.

Use of virtual joysticks goes as such:

1. Attach one or more virtual joysticks by calling SDL_JoystickAttachVirtual.  If successful, this returns the virtual-device's joystick-index.
2. Open the virtual joysticks (using indicies returned by SDL_JoystickAttachVirtual).
3. Call any of the SDL_JoystickSetVirtual* functions when joystick-state changes.  Please note that virtual-joystick state will only get applied on the next call to SDL_JoystickUpdate, or when pumping or polling for SDL events (via SDL_PumpEvents or SDL_PollEvent).


Here is a listing of the new, public APIs, at present and subject to change:

------------------------------------------------------------

/**
 * Attaches a new virtual joystick.
 * Returns the joystick's device index, or -1 if an error occurred.
 */
extern DECLSPEC int SDLCALL SDL_JoystickAttachVirtual(SDL_JoystickType type, int naxes, int nballs, int nbuttons, int nhats);

/**
 * Detaches a virtual joystick
 * Returns 0 on success, or -1 if an error occurred.
 */
extern DECLSPEC int SDLCALL SDL_JoystickDetachVirtual(int device_index);

/**
 * Indicates whether or not a virtual-joystick is at a given device index.
 */
extern DECLSPEC SDL_bool SDLCALL SDL_JoystickIsVirtual(int device_index);

/**
 * Set values on an opened, virtual-joystick's controls.
 * Returns 0 on success, -1 on error.
 */
extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualAxis(SDL_Joystick * joystick, int axis, Sint16 value);
extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualBall(SDL_Joystick * joystick, int ball, Sint16 xrel, Sint16 yrel);
extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualButton(SDL_Joystick * joystick, int button, Uint8 value);
extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualHat(SDL_Joystick * joystick, int hat, Uint8 value);

------------------------------------------------------------

Miscellaneous notes on the initial patch, which are also subject to change:

1. no test code is present in SDL, yet.  This should, perhaps, change.  Initial development was done with an ImGui-based app, which potentially is too thick for use in SDL-official.  If tests are to be added, what kind of tests?  Automated?  Graphical?

2. virtual game controllers can be created by calling SDL_JoystickAttachVirtual with a joystick-type of SDL_JOYSTICK_TYPE_GAME_CONTROLLER, with naxes (num axes) set to SDL_CONTROLLER_AXIS_MAX, and with nbuttons (num buttons) set to SDL_CONTROLLER_BUTTON_MAX.  When updating their state, values of type SDL_GameControllerAxis or SDL_GameControllerButton can be casted to an int and used for the control-index (in calls to SDL_JoystickSetVirtual* functions).

3. virtual joysticks' guids are mostly all-zeros with the exception of the last two bytes, the first of which is a 'v', to indicate that the guid is a virtual one, and the second of which is a SDL_JoystickType that has been converted into a Uint8.

4. virtual joysticks are ONLY turned into virtual game-controllers if and when their joystick-type is set to SDL_JOYSTICK_TYPE_GAMECONTROLLER.  This is controlled by having SDL's default list of game-controllers have a single entry for a virtual game controller (of guid, "00000000000000000000000000007601", which is subject to the guid-encoding described above).

5. regarding having to call SDL_JoystickUpdate, either directly or indirectly via SDL_PumpEvents or SDL_PollEvents, before new virtual-joystick state becomes active (as specified via SDL_JoystickSetVirtual* function-calls), this was done to match behavior found in SDL's other joystick drivers, almost all of which will only update SDL-state during SDL_JoystickUpdate.

6. the initial patch is based off of SDL 2.0.12

7. the virtual joystick subsystem is disabled by default.  It should be possible to enable it by building with SDL_JOYSTICK_VIRTUAL=1



Questions, comments, suggestions, or bug reports very welcome!
2020-03-13 19:08:45 -07:00
Sam Lantinga
a8780c6a28 Updated copyright date for 2020 2020-01-16 20:49:25 -08:00
Sam Lantinga
46e1377d49 Automatically assign player indexes to game controllers, and allow changing the player index for game controllers and joysticks.
Added the functions SDL_JoystickFromPlayerIndex(), SDL_JoystickSetPlayerIndex(), SDL_GameControllerFromPlayerIndex(), and SDL_GameControllerSetPlayerIndex()
2019-12-20 20:12:03 -08:00
Ozkan Sezer
6fc3886441 SDL_gamecontroller.h: remove comma at end of enumerator list 2019-11-23 03:28:02 +03:00
Sam Lantinga
b5aff9d7c3 Added SDL_GameControllerTypeForIndex() and SDL_GameControllerGetType() to return the type of controller attached. 2019-11-22 13:12:12 -08:00
Sam Lantinga
5e13087b0f Updated copyright for 2019 2019-01-04 22:01:14 -08:00
Sam Lantinga
14329256cb Generalized the XInput user index into a player index 2018-10-25 16:53:14 -07:00
Sam Lantinga
d2042e1ed4 Added HIDAPI joystick drivers for more consistent support for Xbox, PS4 and Nintendo Switch Pro controller support across platforms.
Added SDL_GameControllerRumble() and SDL_JoystickRumble() for simple force feedback outside of the SDL haptics API
2018-08-09 16:00:17 -07:00
Sam Lantinga
a8ac588549 Added SDL_GameControllerMappingForDeviceIndex() to get the mapping for a controller before it's opened 2018-03-07 13:30:40 -08:00
Sam Lantinga
e3cc5b2c6b Updated copyright for 2018 2018-01-03 10:03:25 -08:00
Sam Lantinga
45b774e3f7 Updated copyright for 2017 2017-01-01 18:33:28 -08:00
Sam Lantinga
8000e6d9e1 Added documentation for the game controller axis values 2016-12-27 09:59:36 -08:00
Sam Lantinga
b4e069e7f8 Fixed bug 3517 - Compiler warnings with gcc -Wstrict-prototypes
felix

Compiling even a simple SDL2 'hello world' program with gcc -Wstrict-prototypes (GCC 6.2.1) results in warnings like:

/usr/include/SDL2/SDL_gamecontroller.h:143:1: attention : function declaration isn't a prototype [-Wstrict-prototypes]
 extern DECLSPEC int SDLCALL SDL_GameControllerNumMappings();
 ^~~~~~

It seems there is a missing 'void' between the parentheses.
2016-12-26 02:12:21 -08:00
Sam Lantinga
dd5d85a4e7 Added an API to iterate over game controller mappings 2016-11-29 06:36:57 -08:00
Sam Lantinga
3615633571 Renaming of guard header names to quiet -Wreserved-id-macro
Patch contributed by Sylvain
2016-11-20 21:34:54 -08:00
Sam Lantinga
c7351c2dea Fixed a few warnings that show up with -Wdocumentation and -Wdocumentation-unknown-command, patch contributed by Sylvain 2016-11-20 21:26:56 -08:00
Sam Lantinga
ac74e16cde Standardized the format of the SDL joystick GUID and added functions to retrieve the USB VID/PID from a joystick and game controller. 2016-11-10 17:19:34 -08:00
Philipp Wiesemann
a4abda0b70 Added brackets to function names in header comments so that doxygen links them. 2016-08-03 22:30:31 +02:00
Sam Lantinga
42065e785d Updated copyright to 2016 2016-01-02 10:10:34 -08:00
Ryan C. Gordon
e6ad29aec8 Added SDL_JoystickFromInstanceID() and SDL_GameControllerFromInstanceID(). 2015-11-14 12:35:45 -05:00
Philipp Wiesemann
0e45984fa0 Fixed crash if initialization of EGL failed but was tried again later.
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly
uninitialized data structure if loading the library first failed. A later try to
use EGL then skipped initialization and assumed it was previously successful
because the data structure now already existed. This led to at least one crash
in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was
dereferenced to make a call to eglBindAPI().
2015-06-21 17:33:46 +02:00