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SDL/src/joystick/SDL_sysjoystick.h

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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 15:33:46 +00:00
/*
Simple DirectMedia Layer
Updated copyright date for 2020
2020-01-17 04:49:25 +00:00
Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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 15:33:46 +00:00
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
#include "../SDL_internal.h"
Renaming of guard header names to quiet -Wreserved-id-macro Patch contributed by Sylvain
2016-11-21 05:34:54 +00:00
#ifndef SDL_sysjoystick_h_
#define SDL_sysjoystick_h_
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 15:33:46 +00:00
/* This is the system specific header for the SDL joystick API */
#include "SDL_joystick.h"
#include "SDL_joystick_c.h"
/* The SDL joystick structure */
Fixed issue where the throttle and other axes on racing wheels don't start at zero and show up as immediate input when the wheel is turned for the first time. Wait until they are actually moved before generating input from them.
2016-12-23 01:33:45 +00:00
typedef struct _SDL_JoystickAxisInfo
{
Added SDL_JoystickGetAxisInitialState() to get a joystick axis' initial value. This is useful for controller mapping programs to determine an axis' zero state
2017-01-04 18:28:07 +00:00
Sint16 initial_value; /* Initial axis state */
Sint16 value; /* Current axis state */
Fixed binding the D-pad on some Super NES style controllers Fixed a case where partial trigger pull could be bound to another button There is a fundamental problem not resolved by this commit: Some controllers have axes (triggers, pedals, etc.) that don't start at zero, but we're guaranteed that if we get a value that it's correct. For these controllers, the current code works, where we take the first value we get and use that as the zero point and generate axis motion starting from that point on. Other controllers have digital axes (D-pad) that assume a zero starting point, and the first value we get is the min or max axis value when the D-pad is moved. For these controllers, the current code thinks that the zero point is the axis value after the D-pad motion and this doesn't work. My hypothesis is that the first class of devices is more common and that we should solve for that, and add an exception to SDL_JoystickAxesCenteredAtZero() as needed for the second class of devices.
2017-01-04 07:39:28 +00:00
Sint16 zero; /* Zero point on the axis (-32768 for triggers) */
SDL_bool has_initial_value; /* Whether we've seen a value on the axis yet */
Fixed mapping controllers that have axes that start at -32768 and then snap to 0 at the first input report
2019-11-28 19:44:15 +00:00
SDL_bool has_second_value; /* Whether we've seen a second value on the axis yet */
Fixed binding the D-pad on some Super NES style controllers Fixed a case where partial trigger pull could be bound to another button There is a fundamental problem not resolved by this commit: Some controllers have axes (triggers, pedals, etc.) that don't start at zero, but we're guaranteed that if we get a value that it's correct. For these controllers, the current code works, where we take the first value we get and use that as the zero point and generate axis motion starting from that point on. Other controllers have digital axes (D-pad) that assume a zero starting point, and the first value we get is the min or max axis value when the D-pad is moved. For these controllers, the current code thinks that the zero point is the axis value after the D-pad motion and this doesn't work. My hypothesis is that the first class of devices is more common and that we should solve for that, and add an exception to SDL_JoystickAxesCenteredAtZero() as needed for the second class of devices.
2017-01-04 07:39:28 +00:00
SDL_bool sent_initial_value; /* Whether we've sent the initial axis value */
Fixed issue where the throttle and other axes on racing wheels don't start at zero and show up as immediate input when the wheel is turned for the first time. Wait until they are actually moved before generating input from them.
2016-12-23 01:33:45 +00:00
} SDL_JoystickAxisInfo;
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 15:33:46 +00:00
struct _SDL_Joystick
{
SDL_JoystickID instance_id; /* Device instance, monotonically increasing from 0 */
char *name; /* Joystick name - system dependent */
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 23:00:17 +00:00
SDL_JoystickGUID guid; /* Joystick guid */
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 15:33:46 +00:00
int naxes; /* Number of axis controls on the joystick */
Fixed issue where the throttle and other axes on racing wheels don't start at zero and show up as immediate input when the wheel is turned for the first time. Wait until they are actually moved before generating input from them.
2016-12-23 01:33:45 +00:00
SDL_JoystickAxisInfo *axes;
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 15:33:46 +00:00
int nhats; /* Number of hats on the joystick */
Uint8 *hats; /* Current hat states */
int nballs; /* Number of trackballs on the joystick */
struct balldelta {
int dx;
int dy;
} *balls; /* Current ball motion deltas */
int nbuttons; /* Number of buttons on the joystick */
Uint8 *buttons; /* Current button states */
Moved rumble expiration to the main joystick handling level, and prevent sending the driver layer duplicate rumble requests.
2020-02-04 20:48:53 +00:00
Uint16 low_frequency_rumble;
Uint16 high_frequency_rumble;
Uint32 rumble_expiration;
Worked around bug with Sony PS Now PS3 controller where DirectInput polling will continue to return success after the controller is unplugged. The code is now reliant on SDL_PrivateJoystickAdded() and SDL_PrivateJoystickRemoved() being called correctly when devices are added or removed on Windows
2018-08-09 23:03:50 +00:00
SDL_bool attached;
Added an API to get the type of a connected joystick
2017-01-27 13:59:58 +00:00
SDL_bool is_game_controller;
Generalized the handling of instantaneous guide button presses so there's a minimum of 100 ms between guide button press and release. This happens with at least the following controllers: All Apple MFI controllers, ASUS Gamepad, XiaoMi Bluetooth Controller
2018-03-19 21:42:51 +00:00
SDL_bool delayed_guide_button; /* SDL_TRUE if this device has the guide button event delayed */
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 15:33:46 +00:00
SDL_bool force_recentering; /* SDL_TRUE if this device needs to have its state reset to 0 */
SDL - added new SDL_JoystickCurrentPowerLevel() API that returns the battery level of the selected joystick. Currently only implemented for XInput devices, other platforms are a TODO. CR: Sam
2015-09-30 22:39:30 +00:00
SDL_JoystickPowerLevel epowerlevel; /* power level of this joystick, SDL_JOYSTICK_POWER_UNKNOWN if not supported */
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 23:00:17 +00:00
struct _SDL_JoystickDriver *driver;
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 15:33:46 +00:00
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 23:00:17 +00:00
struct joystick_hwdata *hwdata; /* Driver dependent information */
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 15:33:46 +00:00
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 23:00:17 +00:00
int ref_count; /* Reference count for multiple opens */
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 15:33:46 +00:00
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 23:00:17 +00:00
struct _SDL_Joystick *next; /* pointer to next joystick we have allocated */
};
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 15:33:46 +00:00
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 23:00:17 +00:00
/* Device bus definitions */
#define SDL_HARDWARE_BUS_USB 0x03
#define SDL_HARDWARE_BUS_BLUETOOTH 0x05
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 15:33:46 +00:00
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 23:00:17 +00:00
/* Macro to combine a USB vendor ID and product ID into a single Uint32 value */
#define MAKE_VIDPID(VID, PID) (((Uint32)(VID))<<16|(PID))
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 15:33:46 +00:00
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 23:00:17 +00:00
typedef struct _SDL_JoystickDriver
{
/* Function to scan the system for joysticks.
* Joystick 0 should be the system default joystick.
* This function should return 0, or -1 on an unrecoverable error.
*/
int (*Init)(void);
/* Function to return the number of joystick devices plugged in right now */
int (*GetCount)(void);
/* Function to cause any queued joystick insertions to be processed */
void (*Detect)(void);
/* Function to get the device-dependent name of a joystick */
const char *(*GetDeviceName)(int device_index);
Generalized the XInput user index into a player index
2018-10-25 23:53:14 +00:00
/* Function to get the player index of a joystick */
int (*GetDevicePlayerIndex)(int device_index);
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()
2019-12-21 04:12:03 +00:00
/* Function to get the player index of a joystick */
void (*SetDevicePlayerIndex)(int device_index, int player_index);
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 23:00:17 +00:00
/* Function to return the stable GUID for a plugged in device */
SDL_JoystickGUID (*GetDeviceGUID)(int device_index);
/* Function to get the current instance id of the joystick located at device_index */
SDL_JoystickID (*GetDeviceInstanceID)(int device_index);
/* Function to open a joystick for use.
The joystick to open is specified by the device index.
This should fill the nbuttons and naxes fields of the joystick structure.
It returns 0, or -1 if there is an error.
*/
int (*Open)(SDL_Joystick * joystick, int device_index);
/* Rumble functionality */
Moved rumble expiration to the main joystick handling level, and prevent sending the driver layer duplicate rumble requests.
2020-02-04 20:48:53 +00:00
int (*Rumble)(SDL_Joystick * joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble);
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 23:00:17 +00:00
/* Function to update the state of a joystick - called as a device poll.
* This function shouldn't update the joystick structure directly,
* but instead should call SDL_PrivateJoystick*() to deliver events
* and update joystick device state.
*/
void (*Update)(SDL_Joystick * joystick);
/* Function to close a joystick after use */
void (*Close)(SDL_Joystick * joystick);
/* Function to perform any system-specific joystick related cleanup */
void (*Quit)(void);
} SDL_JoystickDriver;
Moved rumble expiration to the main joystick handling level, and prevent sending the driver layer duplicate rumble requests.
2020-02-04 20:48:53 +00:00
/* Windows and Mac OSX has a limit of MAX_DWORD / 1000, Linux kernel has a limit of 0xFFFF */
#define SDL_MAX_RUMBLE_DURATION_MS 0xFFFF
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 23:00:17 +00:00
/* The available joystick drivers */
extern SDL_JoystickDriver SDL_ANDROID_JoystickDriver;
bsd: Update joystick code for new interfaces. (this is an untested push to see if buildbot likes it.)
2018-08-10 18:42:40 +00:00
extern SDL_JoystickDriver SDL_BSD_JoystickDriver;
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 23:00:17 +00:00
extern SDL_JoystickDriver SDL_DARWIN_JoystickDriver;
extern SDL_JoystickDriver SDL_DUMMY_JoystickDriver;
emscripten: Patched to compile with new joystick interfaces.
2018-08-10 18:32:30 +00:00
extern SDL_JoystickDriver SDL_EMSCRIPTEN_JoystickDriver;
haiku: Patched to compile with new joystick interfaces.
2018-08-10 19:04:08 +00:00
extern SDL_JoystickDriver SDL_HAIKU_JoystickDriver;
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 23:00:17 +00:00
extern SDL_JoystickDriver SDL_HIDAPI_JoystickDriver;
extern SDL_JoystickDriver SDL_IOS_JoystickDriver;
extern SDL_JoystickDriver SDL_LINUX_JoystickDriver;
extern SDL_JoystickDriver SDL_WINDOWS_JoystickDriver;
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 15:33:46 +00:00
Renaming of guard header names to quiet -Wreserved-id-macro Patch contributed by Sylvain
2016-11-21 05:34:54 +00:00
#endif /* SDL_sysjoystick_h_ */
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 15:33:46 +00:00
/* vi: set ts=4 sw=4 expandtab: */