SDL  2.0
SDL_joystick.c File Reference
#include "../SDL_internal.h"
#include "SDL.h"
#include "SDL_atomic.h"
#include "SDL_events.h"
#include "SDL_sysjoystick.h"
#include "SDL_assert.h"
#include "SDL_hints.h"
#include "../events/SDL_events_c.h"
#include "../video/SDL_sysvideo.h"
#include "controller_type.h"
#include "../core/windows/SDL_windows.h"
#include <tlhelp32.h>
+ Include dependency graph for SDL_joystick.c:

Go to the source code of this file.

Functions

void SDL_LockJoysticks (void)
 
void SDL_UnlockJoysticks (void)
 
static void SDL_JoystickAllowBackgroundEventsChanged (void *userdata, const char *name, const char *oldValue, const char *hint)
 
int SDL_JoystickInit (void)
 
int SDL_NumJoysticks (void)
 
SDL_JoystickID SDL_GetNextJoystickInstanceID ()
 
SDL_bool SDL_GetDriverAndJoystickIndex (int device_index, SDL_JoystickDriver **driver, int *driver_index)
 
static const char * SDL_FixupJoystickName (const char *name)
 
const char * SDL_JoystickNameForIndex (int device_index)
 
int SDL_JoystickGetDevicePlayerIndex (int device_index)
 
static SDL_bool SDL_JoystickAxesCenteredAtZero (SDL_Joystick *joystick)
 
SDL_Joystick * SDL_JoystickOpen (int device_index)
 
int SDL_PrivateJoystickValid (SDL_Joystick *joystick)
 
int SDL_JoystickNumAxes (SDL_Joystick *joystick)
 
int SDL_JoystickNumHats (SDL_Joystick *joystick)
 
int SDL_JoystickNumBalls (SDL_Joystick *joystick)
 
int SDL_JoystickNumButtons (SDL_Joystick *joystick)
 
Sint16 SDL_JoystickGetAxis (SDL_Joystick *joystick, int axis)
 
SDL_bool SDL_JoystickGetAxisInitialState (SDL_Joystick *joystick, int axis, Sint16 *state)
 
Uint8 SDL_JoystickGetHat (SDL_Joystick *joystick, int hat)
 
int SDL_JoystickGetBall (SDL_Joystick *joystick, int ball, int *dx, int *dy)
 
Uint8 SDL_JoystickGetButton (SDL_Joystick *joystick, int button)
 
SDL_bool SDL_JoystickGetAttached (SDL_Joystick *joystick)
 
SDL_JoystickID SDL_JoystickInstanceID (SDL_Joystick *joystick)
 
SDL_Joystick * SDL_JoystickFromInstanceID (SDL_JoystickID joyid)
 
const char * SDL_JoystickName (SDL_Joystick *joystick)
 
int SDL_JoystickGetPlayerIndex (SDL_Joystick *joystick)
 
int SDL_JoystickRumble (SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble, Uint32 duration_ms)
 
void SDL_JoystickClose (SDL_Joystick *joystick)
 
void SDL_JoystickQuit (void)
 
static SDL_bool SDL_PrivateJoystickShouldIgnoreEvent ()
 
void SDL_PrivateJoystickAdded (SDL_JoystickID device_instance)
 
static void UpdateEventsForDeviceRemoval ()
 
void SDL_PrivateJoystickRemoved (SDL_JoystickID device_instance)
 
int SDL_PrivateJoystickAxis (SDL_Joystick *joystick, Uint8 axis, Sint16 value)
 
int SDL_PrivateJoystickHat (SDL_Joystick *joystick, Uint8 hat, Uint8 value)
 
int SDL_PrivateJoystickBall (SDL_Joystick *joystick, Uint8 ball, Sint16 xrel, Sint16 yrel)
 
int SDL_PrivateJoystickButton (SDL_Joystick *joystick, Uint8 button, Uint8 state)
 
void SDL_JoystickUpdate (void)
 
int SDL_JoystickEventState (int state)
 
void SDL_GetJoystickGUIDInfo (SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)
 
SDL_bool SDL_IsJoystickPS4 (Uint16 vendor, Uint16 product)
 
SDL_bool SDL_IsJoystickNintendoSwitchPro (Uint16 vendor, Uint16 product)
 
SDL_bool SDL_IsJoystickSteamController (Uint16 vendor, Uint16 product)
 
SDL_bool SDL_IsJoystickXbox360 (Uint16 vendor, Uint16 product)
 
SDL_bool SDL_IsJoystickXboxOne (Uint16 vendor, Uint16 product)
 
SDL_bool SDL_IsJoystickXInput (SDL_JoystickGUID guid)
 
SDL_bool SDL_IsJoystickHIDAPI (SDL_JoystickGUID guid)
 
static SDL_bool SDL_IsJoystickProductWheel (Uint32 vidpid)
 
static SDL_bool SDL_IsJoystickProductFlightStick (Uint32 vidpid)
 
static SDL_bool SDL_IsJoystickProductThrottle (Uint32 vidpid)
 
static SDL_JoystickType SDL_GetJoystickGUIDType (SDL_JoystickGUID guid)
 
static SDL_bool SDL_IsPS4RemapperRunning (void)
 
SDL_bool SDL_ShouldIgnoreJoystick (const char *name, SDL_JoystickGUID guid)
 
SDL_JoystickGUID SDL_JoystickGetDeviceGUID (int device_index)
 
Uint16 SDL_JoystickGetDeviceVendor (int device_index)
 
Uint16 SDL_JoystickGetDeviceProduct (int device_index)
 
Uint16 SDL_JoystickGetDeviceProductVersion (int device_index)
 
SDL_JoystickType SDL_JoystickGetDeviceType (int device_index)
 
SDL_JoystickID SDL_JoystickGetDeviceInstanceID (int device_index)
 
int SDL_JoystickGetDeviceIndexFromInstanceID (SDL_JoystickID instance_id)
 
SDL_JoystickGUID SDL_JoystickGetGUID (SDL_Joystick *joystick)
 
Uint16 SDL_JoystickGetVendor (SDL_Joystick *joystick)
 
Uint16 SDL_JoystickGetProduct (SDL_Joystick *joystick)
 
Uint16 SDL_JoystickGetProductVersion (SDL_Joystick *joystick)
 
SDL_JoystickType SDL_JoystickGetType (SDL_Joystick *joystick)
 
void SDL_JoystickGetGUIDString (SDL_JoystickGUID guid, char *pszGUID, int cbGUID)
 
static unsigned char nibble (char c)
 
SDL_JoystickGUID SDL_JoystickGetGUIDFromString (const char *pchGUID)
 
void SDL_PrivateJoystickBatteryLevel (SDL_Joystick *joystick, SDL_JoystickPowerLevel ePowerLevel)
 
SDL_JoystickPowerLevel SDL_JoystickCurrentPowerLevel (SDL_Joystick *joystick)
 

Variables

static SDL_JoystickDriverSDL_joystick_drivers []
 
static SDL_bool SDL_joystick_allows_background_events = SDL_FALSE
 
static SDL_Joystick * SDL_joysticks = NULL
 
static SDL_bool SDL_updating_joystick = SDL_FALSE
 
static SDL_mutexSDL_joystick_lock = NULL
 
static SDL_atomic_t SDL_next_joystick_instance_id
 

Function Documentation

◆ nibble()

static unsigned char nibble ( char  c)
static

Definition at line 1654 of file SDL_joystick.c.

Referenced by LAW_Decode(), and SDL_JoystickGetGUIDFromString().

1655 {
1656  if ((c >= '0') && (c <= '9')) {
1657  return (unsigned char)(c - '0');
1658  }
1659 
1660  if ((c >= 'A') && (c <= 'F')) {
1661  return (unsigned char)(c - 'A' + 0x0a);
1662  }
1663 
1664  if ((c >= 'a') && (c <= 'f')) {
1665  return (unsigned char)(c - 'a' + 0x0a);
1666  }
1667 
1668  /* received an invalid character, and no real way to return an error */
1669  /* AssertMsg1(false, "Q_nibble invalid hex character '%c' ", c); */
1670  return 0;
1671 }
const GLubyte * c

◆ SDL_FixupJoystickName()

static const char* SDL_FixupJoystickName ( const char *  name)
static

Definition at line 198 of file SDL_joystick.c.

References SDL_strlen, and SDL_strncmp.

Referenced by SDL_JoystickName(), and SDL_JoystickNameForIndex().

199 {
200  if (name) {
201  const char *skip_prefix = "NVIDIA Corporation ";
202 
203  if (SDL_strncmp(name, skip_prefix, SDL_strlen(skip_prefix)) == 0) {
204  name += SDL_strlen(skip_prefix);
205  }
206  }
207  return name;
208 }
#define SDL_strncmp
GLuint const GLchar * name
#define SDL_strlen

◆ SDL_GetDriverAndJoystickIndex()

SDL_bool SDL_GetDriverAndJoystickIndex ( int  device_index,
SDL_JoystickDriver **  driver,
int *  driver_index 
)

Definition at line 173 of file SDL_joystick.c.

References SDL_JoystickDriver::GetCount, i, SDL_arraysize, SDL_FALSE, SDL_SetError, and SDL_TRUE.

Referenced by SDL_JoystickGetDeviceGUID(), SDL_JoystickGetDeviceInstanceID(), SDL_JoystickGetDevicePlayerIndex(), SDL_JoystickNameForIndex(), and SDL_JoystickOpen().

174 {
175  int i, num_joysticks, total_joysticks = 0;
176 
177  if (device_index >= 0) {
178  for (i = 0; i < SDL_arraysize(SDL_joystick_drivers); ++i) {
179  num_joysticks = SDL_joystick_drivers[i]->GetCount();
180  if (device_index < num_joysticks) {
181  *driver = SDL_joystick_drivers[i];
182  *driver_index = device_index;
183  return SDL_TRUE;
184  }
185  device_index -= num_joysticks;
186  total_joysticks += num_joysticks;
187  }
188  }
189 
190  SDL_SetError("There are %d joysticks available", total_joysticks);
191  return SDL_FALSE;
192 }
int(* GetCount)(void)
static SDL_JoystickDriver * SDL_joystick_drivers[]
Definition: SDL_joystick.c:48
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define SDL_SetError
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115

◆ SDL_GetJoystickGUIDInfo()

void SDL_GetJoystickGUIDInfo ( SDL_JoystickGUID  guid,
Uint16 vendor,
Uint16 product,
Uint16 version 
)

Definition at line 1125 of file SDL_joystick.c.

References SDL_JoystickGUID::data.

Referenced by SDL_GetJoystickGUIDType(), SDL_JoystickGetDeviceProduct(), SDL_JoystickGetDeviceProductVersion(), SDL_JoystickGetDeviceVendor(), SDL_JoystickGetProduct(), SDL_JoystickGetProductVersion(), SDL_JoystickGetVendor(), SDL_ShouldIgnoreGameController(), and SDL_ShouldIgnoreJoystick().

1126 {
1127  Uint16 *guid16 = (Uint16 *)guid.data;
1128 
1129  /* If the GUID fits the form of BUS 0000 VENDOR 0000 PRODUCT 0000, return the data */
1130  if (/* guid16[0] is device bus type */
1131  guid16[1] == 0x0000 &&
1132  /* guid16[2] is vendor ID */
1133  guid16[3] == 0x0000 &&
1134  /* guid16[4] is product ID */
1135  guid16[5] == 0x0000
1136  /* guid16[6] is product version */
1137  ) {
1138  if (vendor) {
1139  *vendor = guid16[2];
1140  }
1141  if (product) {
1142  *product = guid16[4];
1143  }
1144  if (version) {
1145  *version = guid16[6];
1146  }
1147  } else {
1148  if (vendor) {
1149  *vendor = 0;
1150  }
1151  if (product) {
1152  *product = 0;
1153  }
1154  if (version) {
1155  *version = 0;
1156  }
1157  }
1158 }
uint16_t Uint16
Definition: SDL_stdinc.h:191
Uint8 data[16]
Definition: SDL_joystick.h:71

◆ SDL_GetJoystickGUIDType()

static SDL_JoystickType SDL_GetJoystickGUIDType ( SDL_JoystickGUID  guid)
static

Definition at line 1272 of file SDL_joystick.c.

References SDL_JoystickGUID::data, GuessControllerType(), k_eControllerType_UnknownNonSteamController, MAKE_VIDPID, NULL, SDL_GetJoystickGUIDInfo(), SDL_IsJoystickProductFlightStick(), SDL_IsJoystickProductThrottle(), SDL_IsJoystickProductWheel(), SDL_IsJoystickXInput(), SDL_JOYSTICK_TYPE_ARCADE_PAD, SDL_JOYSTICK_TYPE_ARCADE_STICK, SDL_JOYSTICK_TYPE_DANCE_PAD, SDL_JOYSTICK_TYPE_DRUM_KIT, SDL_JOYSTICK_TYPE_FLIGHT_STICK, SDL_JOYSTICK_TYPE_GAMECONTROLLER, SDL_JOYSTICK_TYPE_GUITAR, SDL_JOYSTICK_TYPE_THROTTLE, SDL_JOYSTICK_TYPE_UNKNOWN, and SDL_JOYSTICK_TYPE_WHEEL.

Referenced by SDL_JoystickGetDeviceType(), and SDL_JoystickGetType().

1273 {
1274  Uint16 vendor;
1275  Uint16 product;
1276  Uint32 vidpid;
1277 
1278  if (SDL_IsJoystickXInput(guid)) {
1279  /* XInput GUID, get the type based on the XInput device subtype */
1280  switch (guid.data[15]) {
1281  case 0x01: /* XINPUT_DEVSUBTYPE_GAMEPAD */
1283  case 0x02: /* XINPUT_DEVSUBTYPE_WHEEL */
1284  return SDL_JOYSTICK_TYPE_WHEEL;
1285  case 0x03: /* XINPUT_DEVSUBTYPE_ARCADE_STICK */
1287  case 0x04: /* XINPUT_DEVSUBTYPE_FLIGHT_STICK */
1289  case 0x05: /* XINPUT_DEVSUBTYPE_DANCE_PAD */
1291  case 0x06: /* XINPUT_DEVSUBTYPE_GUITAR */
1292  case 0x07: /* XINPUT_DEVSUBTYPE_GUITAR_ALTERNATE */
1293  case 0x0B: /* XINPUT_DEVSUBTYPE_GUITAR_BASS */
1294  return SDL_JOYSTICK_TYPE_GUITAR;
1295  case 0x08: /* XINPUT_DEVSUBTYPE_DRUM_KIT */
1297  case 0x13: /* XINPUT_DEVSUBTYPE_ARCADE_PAD */
1299  default:
1301  }
1302  }
1303 
1304  SDL_GetJoystickGUIDInfo(guid, &vendor, &product, NULL);
1305  vidpid = MAKE_VIDPID(vendor, product);
1306 
1307  if (SDL_IsJoystickProductWheel(vidpid)) {
1308  return SDL_JOYSTICK_TYPE_WHEEL;
1309  }
1310 
1311  if (SDL_IsJoystickProductFlightStick(vidpid)) {
1313  }
1314 
1315  if (SDL_IsJoystickProductThrottle(vidpid)) {
1317  }
1318 
1321  }
1322 
1324 }
static SDL_bool SDL_IsJoystickProductWheel(Uint32 vidpid)
#define MAKE_VIDPID(VID, PID)
uint16_t Uint16
Definition: SDL_stdinc.h:191
static EControllerType GuessControllerType(int nVID, int nPID)
Uint8 data[16]
Definition: SDL_joystick.h:71
static SDL_bool SDL_IsJoystickProductFlightStick(Uint32 vidpid)
SDL_bool SDL_IsJoystickXInput(SDL_JoystickGUID guid)
#define NULL
Definition: begin_code.h:167
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)
uint32_t Uint32
Definition: SDL_stdinc.h:203
static SDL_bool SDL_IsJoystickProductThrottle(Uint32 vidpid)

◆ SDL_GetNextJoystickInstanceID()

SDL_JoystickID SDL_GetNextJoystickInstanceID ( void  )

Definition at line 163 of file SDL_joystick.c.

References SDL_AtomicIncRef.

Referenced by IOS_AddJoystickDevice().

164 {
166 }
static SDL_atomic_t SDL_next_joystick_instance_id
Definition: SDL_joystick.c:84
#define SDL_AtomicIncRef(a)
Increment an atomic variable used as a reference count.
Definition: SDL_atomic.h:252

◆ SDL_IsJoystickHIDAPI()

SDL_bool SDL_IsJoystickHIDAPI ( SDL_JoystickGUID  guid)

Definition at line 1208 of file SDL_joystick.c.

References SDL_JoystickGUID::data, SDL_FALSE, and SDL_TRUE.

Referenced by SDL_PrivateGetControllerMappingForGUID(), and SDL_PrivateGetControllerMappingForNameAndGUID().

1209 {
1210  return (guid.data[14] == 'h') ? SDL_TRUE : SDL_FALSE;
1211 }
Uint8 data[16]
Definition: SDL_joystick.h:71

◆ SDL_IsJoystickNintendoSwitchPro()

SDL_bool SDL_IsJoystickNintendoSwitchPro ( Uint16  vendor,
Uint16  product 
)

◆ SDL_IsJoystickProductFlightStick()

static SDL_bool SDL_IsJoystickProductFlightStick ( Uint32  vidpid)
static

Definition at line 1240 of file SDL_joystick.c.

References i, MAKE_VIDPID, SDL_arraysize, SDL_FALSE, and SDL_TRUE.

Referenced by SDL_GetJoystickGUIDType().

1241 {
1242  static Uint32 flightstick_joysticks[] = {
1243  MAKE_VIDPID(0x044f, 0x0402), /* HOTAS Warthog Joystick */
1244  MAKE_VIDPID(0x0738, 0x2221), /* Saitek Pro Flight X-56 Rhino Stick */
1245  };
1246  int i;
1247 
1248  for (i = 0; i < SDL_arraysize(flightstick_joysticks); ++i) {
1249  if (vidpid == flightstick_joysticks[i]) {
1250  return SDL_TRUE;
1251  }
1252  }
1253  return SDL_FALSE;
1254 }
#define MAKE_VIDPID(VID, PID)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
uint32_t Uint32
Definition: SDL_stdinc.h:203
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115

◆ SDL_IsJoystickProductThrottle()

static SDL_bool SDL_IsJoystickProductThrottle ( Uint32  vidpid)
static

Definition at line 1256 of file SDL_joystick.c.

References i, MAKE_VIDPID, SDL_arraysize, SDL_FALSE, and SDL_TRUE.

Referenced by SDL_GetJoystickGUIDType().

1257 {
1258  static Uint32 throttle_joysticks[] = {
1259  MAKE_VIDPID(0x044f, 0x0404), /* HOTAS Warthog Throttle */
1260  MAKE_VIDPID(0x0738, 0xa221), /* Saitek Pro Flight X-56 Rhino Throttle */
1261  };
1262  int i;
1263 
1264  for (i = 0; i < SDL_arraysize(throttle_joysticks); ++i) {
1265  if (vidpid == throttle_joysticks[i]) {
1266  return SDL_TRUE;
1267  }
1268  }
1269  return SDL_FALSE;
1270 }
#define MAKE_VIDPID(VID, PID)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
uint32_t Uint32
Definition: SDL_stdinc.h:203
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115

◆ SDL_IsJoystickProductWheel()

static SDL_bool SDL_IsJoystickProductWheel ( Uint32  vidpid)
static

Definition at line 1213 of file SDL_joystick.c.

References i, MAKE_VIDPID, SDL_arraysize, SDL_FALSE, and SDL_TRUE.

Referenced by SDL_GetJoystickGUIDType().

1214 {
1215  static Uint32 wheel_joysticks[] = {
1216  MAKE_VIDPID(0x046d, 0xc294), /* Logitech generic wheel */
1217  MAKE_VIDPID(0x046d, 0xc295), /* Logitech Momo Force */
1218  MAKE_VIDPID(0x046d, 0xc298), /* Logitech Driving Force Pro */
1219  MAKE_VIDPID(0x046d, 0xc299), /* Logitech G25 */
1220  MAKE_VIDPID(0x046d, 0xc29a), /* Logitech Driving Force GT */
1221  MAKE_VIDPID(0x046d, 0xc29b), /* Logitech G27 */
1222  MAKE_VIDPID(0x046d, 0xc261), /* Logitech G920 (initial mode) */
1223  MAKE_VIDPID(0x046d, 0xc262), /* Logitech G920 (active mode) */
1224  MAKE_VIDPID(0x044f, 0xb65d), /* Thrustmaster Wheel FFB */
1225  MAKE_VIDPID(0x044f, 0xb66d), /* Thrustmaster Wheel FFB */
1226  MAKE_VIDPID(0x044f, 0xb677), /* Thrustmaster T150 */
1227  MAKE_VIDPID(0x044f, 0xb664), /* Thrustmaster TX (initial mode) */
1228  MAKE_VIDPID(0x044f, 0xb669), /* Thrustmaster TX (active mode) */
1229  };
1230  int i;
1231 
1232  for (i = 0; i < SDL_arraysize(wheel_joysticks); ++i) {
1233  if (vidpid == wheel_joysticks[i]) {
1234  return SDL_TRUE;
1235  }
1236  }
1237  return SDL_FALSE;
1238 }
#define MAKE_VIDPID(VID, PID)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
uint32_t Uint32
Definition: SDL_stdinc.h:203
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115

◆ SDL_IsJoystickPS4()

SDL_bool SDL_IsJoystickPS4 ( Uint16  vendor,
Uint16  product 
)

Definition at line 1161 of file SDL_joystick.c.

References GuessControllerType(), and k_eControllerType_PS4Controller.

Referenced by SDL_ShouldIgnoreJoystick().

1162 {
1163  return (GuessControllerType(vendor, product) == k_eControllerType_PS4Controller);
1164 }
static EControllerType GuessControllerType(int nVID, int nPID)

◆ SDL_IsJoystickSteamController()

SDL_bool SDL_IsJoystickSteamController ( Uint16  vendor,
Uint16  product 
)

Definition at line 1175 of file SDL_joystick.c.

References GuessControllerType(), k_eControllerType_SteamController, and k_eControllerType_SteamControllerV2.

1176 {
1177  EControllerType eType = GuessControllerType(vendor, product);
1178  return (eType == k_eControllerType_SteamController ||
1180 }
static EControllerType GuessControllerType(int nVID, int nPID)
EControllerType

◆ SDL_IsJoystickXbox360()

SDL_bool SDL_IsJoystickXbox360 ( Uint16  vendor,
Uint16  product 
)

Definition at line 1183 of file SDL_joystick.c.

References GuessControllerType(), k_eControllerType_XBox360Controller, and SDL_FALSE.

1184 {
1185  /* Filter out some bogus values here */
1186  if (vendor == 0x0000 && product == 0x0000) {
1187  return SDL_FALSE;
1188  }
1189  if (vendor == 0x0001 && product == 0x0001) {
1190  return SDL_FALSE;
1191  }
1192  return (GuessControllerType(vendor, product) == k_eControllerType_XBox360Controller);
1193 }
static EControllerType GuessControllerType(int nVID, int nPID)

◆ SDL_IsJoystickXboxOne()

SDL_bool SDL_IsJoystickXboxOne ( Uint16  vendor,
Uint16  product 
)

Definition at line 1196 of file SDL_joystick.c.

References GuessControllerType(), and k_eControllerType_XBoxOneController.

1197 {
1198  return (GuessControllerType(vendor, product) == k_eControllerType_XBoxOneController);
1199 }
static EControllerType GuessControllerType(int nVID, int nPID)

◆ SDL_IsJoystickXInput()

SDL_bool SDL_IsJoystickXInput ( SDL_JoystickGUID  guid)

Definition at line 1202 of file SDL_joystick.c.

References SDL_JoystickGUID::data, SDL_FALSE, and SDL_TRUE.

Referenced by SDL_GetJoystickGUIDType(), and SDL_PrivateGetControllerMappingForGUID().

1203 {
1204  return (guid.data[14] == 'x') ? SDL_TRUE : SDL_FALSE;
1205 }
Uint8 data[16]
Definition: SDL_joystick.h:71

◆ SDL_IsPS4RemapperRunning()

static SDL_bool SDL_IsPS4RemapperRunning ( void  )
static

Definition at line 1326 of file SDL_joystick.c.

References i, SDL_arraysize, SDL_FALSE, SDL_strcasecmp, and SDL_TRUE.

Referenced by SDL_ShouldIgnoreJoystick().

1327 {
1328 #ifdef __WIN32__
1329  const char *mapper_processes[] = {
1330  "DS4Windows.exe",
1331  "InputMapper.exe",
1332  };
1333  int i;
1334  PROCESSENTRY32 pe32;
1335  SDL_bool found = SDL_FALSE;
1336 
1337  /* Take a snapshot of all processes in the system */
1338  HANDLE hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
1339  if (hProcessSnap != INVALID_HANDLE_VALUE) {
1340  pe32.dwSize = sizeof(PROCESSENTRY32);
1341  if (Process32First(hProcessSnap, &pe32)) {
1342  do
1343  {
1344  for (i = 0; i < SDL_arraysize(mapper_processes); ++i) {
1345  if (SDL_strcasecmp(pe32.szExeFile, mapper_processes[i]) == 0) {
1346  found = SDL_TRUE;
1347  }
1348  }
1349  } while (Process32Next(hProcessSnap, &pe32) && !found);
1350  }
1351  CloseHandle(hProcessSnap);
1352  }
1353  return found;
1354 #else
1355  return SDL_FALSE;
1356 #endif
1357 }
#define SDL_strcasecmp
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SDL_bool
Definition: SDL_stdinc.h:161
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115

◆ SDL_JoystickAllowBackgroundEventsChanged()

static void SDL_JoystickAllowBackgroundEventsChanged ( void userdata,
const char *  name,
const char *  oldValue,
const char *  hint 
)
static

Definition at line 104 of file SDL_joystick.c.

References SDL_FALSE, SDL_joystick_allows_background_events, and SDL_TRUE.

Referenced by SDL_JoystickInit(), and SDL_JoystickQuit().

105 {
106  if (hint && *hint == '1') {
108  } else {
110  }
111 }
static SDL_bool SDL_joystick_allows_background_events
Definition: SDL_joystick.c:80

◆ SDL_JoystickAxesCenteredAtZero()

static SDL_bool SDL_JoystickAxesCenteredAtZero ( SDL_Joystick *  joystick)
static

Definition at line 251 of file SDL_joystick.c.

References i, MAKE_VIDPID, SDL_arraysize, SDL_FALSE, SDL_JoystickGetProduct(), SDL_JoystickGetVendor(), and SDL_TRUE.

Referenced by SDL_JoystickOpen().

252 {
253  static Uint32 zero_centered_joysticks[] = {
254  MAKE_VIDPID(0x0e8f, 0x3013), /* HuiJia SNES USB adapter */
255  MAKE_VIDPID(0x05a0, 0x3232), /* 8Bitdo Zero Gamepad */
256  };
257 
258  int i;
260  SDL_JoystickGetProduct(joystick));
261 
262 /*printf("JOYSTICK '%s' VID/PID 0x%.4x/0x%.4x AXES: %d\n", joystick->name, vendor, product, joystick->naxes);*/
263 
264  if (joystick->naxes == 2) {
265  /* Assume D-pad or thumbstick style axes are centered at 0 */
266  return SDL_TRUE;
267  }
268 
269  for (i = 0; i < SDL_arraysize(zero_centered_joysticks); ++i) {
270  if (id == zero_centered_joysticks[i]) {
271  return SDL_TRUE;
272  }
273  }
274  return SDL_FALSE;
275 }
Uint16 SDL_JoystickGetVendor(SDL_Joystick *joystick)
#define MAKE_VIDPID(VID, PID)
Uint16 SDL_JoystickGetProduct(SDL_Joystick *joystick)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
uint32_t Uint32
Definition: SDL_stdinc.h:203
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115

◆ SDL_JoystickClose()

void SDL_JoystickClose ( SDL_Joystick *  joystick)

Close a joystick previously opened with SDL_JoystickOpen().

Definition at line 643 of file SDL_joystick.c.

References NULL, SDL_free, SDL_joysticks, SDL_LockJoysticks(), SDL_PrivateJoystickValid(), SDL_UnlockJoysticks(), and SDL_updating_joystick.

Referenced by SDL_JoystickOpen(), SDL_JoystickQuit(), and SDL_JoystickUpdate().

644 {
645  SDL_Joystick *joysticklist;
646  SDL_Joystick *joysticklistprev;
647 
648  if (!SDL_PrivateJoystickValid(joystick)) {
649  return;
650  }
651 
653 
654  /* First decrement ref count */
655  if (--joystick->ref_count > 0) {
657  return;
658  }
659 
660  if (SDL_updating_joystick) {
662  return;
663  }
664 
665  joystick->driver->Close(joystick);
666  joystick->hwdata = NULL;
667 
668  joysticklist = SDL_joysticks;
669  joysticklistprev = NULL;
670  while (joysticklist) {
671  if (joystick == joysticklist) {
672  if (joysticklistprev) {
673  /* unlink this entry */
674  joysticklistprev->next = joysticklist->next;
675  } else {
676  SDL_joysticks = joystick->next;
677  }
678  break;
679  }
680  joysticklistprev = joysticklist;
681  joysticklist = joysticklist->next;
682  }
683 
684  SDL_free(joystick->name);
685 
686  /* Free the data associated with this joystick */
687  SDL_free(joystick->axes);
688  SDL_free(joystick->hats);
689  SDL_free(joystick->balls);
690  SDL_free(joystick->buttons);
691  SDL_free(joystick);
692 
694 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394
#define SDL_free
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
#define NULL
Definition: begin_code.h:167
static SDL_bool SDL_updating_joystick
Definition: SDL_joystick.c:82
static SDL_Joystick * SDL_joysticks
Definition: SDL_joystick.c:81

◆ SDL_JoystickCurrentPowerLevel()

SDL_JoystickPowerLevel SDL_JoystickCurrentPowerLevel ( SDL_Joystick *  joystick)

Return the battery level of this joystick

Definition at line 1702 of file SDL_joystick.c.

References SDL_JOYSTICK_POWER_UNKNOWN, and SDL_PrivateJoystickValid().

1703 {
1704  if (!SDL_PrivateJoystickValid(joystick)) {
1706  }
1707  return joystick->epowerlevel;
1708 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickEventState()

int SDL_JoystickEventState ( int  state)

Enable/disable joystick event polling.

If joystick events are disabled, you must call SDL_JoystickUpdate() yourself and check the state of the joystick when you want joystick information.

The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE.

Definition at line 1094 of file SDL_joystick.c.

References i, SDL_arraysize, SDL_DISABLE, SDL_ENABLE, SDL_EventState, SDL_JOYAXISMOTION, SDL_JOYBALLMOTION, SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP, SDL_JOYDEVICEADDED, SDL_JOYDEVICEREMOVED, SDL_JOYHATMOTION, SDL_QUERY, and state.

1095 {
1096 #if SDL_EVENTS_DISABLED
1097  return SDL_DISABLE;
1098 #else
1099  const Uint32 event_list[] = {
1102  };
1103  unsigned int i;
1104 
1105  switch (state) {
1106  case SDL_QUERY:
1107  state = SDL_DISABLE;
1108  for (i = 0; i < SDL_arraysize(event_list); ++i) {
1109  state = SDL_EventState(event_list[i], SDL_QUERY);
1110  if (state == SDL_ENABLE) {
1111  break;
1112  }
1113  }
1114  break;
1115  default:
1116  for (i = 0; i < SDL_arraysize(event_list); ++i) {
1117  SDL_EventState(event_list[i], state);
1118  }
1119  break;
1120  }
1121  return state;
1122 #endif /* SDL_EVENTS_DISABLED */
1123 }
struct xkb_state * state
#define SDL_ENABLE
Definition: SDL_events.h:759
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define SDL_DISABLE
Definition: SDL_events.h:758
#define SDL_EventState
uint32_t Uint32
Definition: SDL_stdinc.h:203
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115
#define SDL_QUERY
Definition: SDL_events.h:756

◆ SDL_JoystickFromInstanceID()

SDL_Joystick* SDL_JoystickFromInstanceID ( SDL_JoystickID  joyid)

Return the SDL_Joystick associated with an instance id.

Definition at line 594 of file SDL_joystick.c.

References SDL_joysticks, SDL_LockJoysticks(), and SDL_UnlockJoysticks().

595 {
596  SDL_Joystick *joystick;
597 
599  for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
600  if (joystick->instance_id == joyid) {
601  break;
602  }
603  }
605  return joystick;
606 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
static SDL_Joystick * SDL_joysticks
Definition: SDL_joystick.c:81

◆ SDL_JoystickGetAttached()

SDL_bool SDL_JoystickGetAttached ( SDL_Joystick *  joystick)

Returns SDL_TRUE if the joystick has been opened and currently connected, or SDL_FALSE if it has not.

Definition at line 568 of file SDL_joystick.c.

References SDL_FALSE, and SDL_PrivateJoystickValid().

569 {
570  if (!SDL_PrivateJoystickValid(joystick)) {
571  return SDL_FALSE;
572  }
573 
574  return joystick->attached;
575 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickGetAxis()

Sint16 SDL_JoystickGetAxis ( SDL_Joystick *  joystick,
int  axis 
)

Get the current state of an axis control on a joystick.

The state is a value ranging from -32768 to 32767.

The axis indices start at index 0.

Definition at line 460 of file SDL_joystick.c.

References axis, SDL_PrivateJoystickValid(), SDL_SetError, and state.

461 {
462  Sint16 state;
463 
464  if (!SDL_PrivateJoystickValid(joystick)) {
465  return 0;
466  }
467  if (axis < joystick->naxes) {
468  state = joystick->axes[axis].value;
469  } else {
470  SDL_SetError("Joystick only has %d axes", joystick->naxes);
471  state = 0;
472  }
473  return state;
474 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394
struct xkb_state * state
SDL_Texture * axis
#define SDL_SetError
int16_t Sint16
Definition: SDL_stdinc.h:185

◆ SDL_JoystickGetAxisInitialState()

SDL_bool SDL_JoystickGetAxisInitialState ( SDL_Joystick *  joystick,
int  axis,
Sint16 state 
)

Get the initial state of an axis control on a joystick.

The state is a value ranging from -32768 to 32767.

The axis indices start at index 0.

Returns
SDL_TRUE if this axis has any initial value, or SDL_FALSE if not.

Definition at line 480 of file SDL_joystick.c.

References axis, SDL_FALSE, SDL_PrivateJoystickValid(), and SDL_SetError.

481 {
482  if (!SDL_PrivateJoystickValid(joystick)) {
483  return SDL_FALSE;
484  }
485  if (axis >= joystick->naxes) {
486  SDL_SetError("Joystick only has %d axes", joystick->naxes);
487  return SDL_FALSE;
488  }
489  if (state) {
490  *state = joystick->axes[axis].initial_value;
491  }
492  return joystick->axes[axis].has_initial_value;
493 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394
struct xkb_state * state
SDL_Texture * axis
#define SDL_SetError

◆ SDL_JoystickGetBall()

int SDL_JoystickGetBall ( SDL_Joystick *  joystick,
int  ball,
int *  dx,
int *  dy 
)

Get the ball axis change since the last poll.

Returns
0, or -1 if you passed it invalid parameters.

The ball indices start at index 0.

Definition at line 519 of file SDL_joystick.c.

References retval, SDL_PrivateJoystickValid(), and SDL_SetError.

520 {
521  int retval;
522 
523  if (!SDL_PrivateJoystickValid(joystick)) {
524  return -1;
525  }
526 
527  retval = 0;
528  if (ball < joystick->nballs) {
529  if (dx) {
530  *dx = joystick->balls[ball].dx;
531  }
532  if (dy) {
533  *dy = joystick->balls[ball].dy;
534  }
535  joystick->balls[ball].dx = 0;
536  joystick->balls[ball].dy = 0;
537  } else {
538  return SDL_SetError("Joystick only has %d balls", joystick->nballs);
539  }
540  return retval;
541 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394
SDL_bool retval
#define SDL_SetError

◆ SDL_JoystickGetButton()

Uint8 SDL_JoystickGetButton ( SDL_Joystick *  joystick,
int  button 
)

Get the current state of a button on a joystick.

The button indices start at index 0.

Definition at line 547 of file SDL_joystick.c.

References button, SDL_PrivateJoystickValid(), SDL_SetError, and state.

548 {
549  Uint8 state;
550 
551  if (!SDL_PrivateJoystickValid(joystick)) {
552  return 0;
553  }
554  if (button < joystick->nbuttons) {
555  state = joystick->buttons[button];
556  } else {
557  SDL_SetError("Joystick only has %d buttons", joystick->nbuttons);
558  state = 0;
559  }
560  return state;
561 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394
SDL_Texture * button
struct xkb_state * state
uint8_t Uint8
Definition: SDL_stdinc.h:179
#define SDL_SetError

◆ SDL_JoystickGetDeviceGUID()

SDL_JoystickGUID SDL_JoystickGetDeviceGUID ( int  device_index)

Return the GUID for the joystick at this index This can be called before any joysticks are opened.

Definition at line 1489 of file SDL_joystick.c.

References SDL_JoystickDriver::GetDeviceGUID, SDL_GetDriverAndJoystickIndex(), SDL_LockJoysticks(), SDL_UnlockJoysticks(), and SDL_zero.

Referenced by SDL_JoystickGetDeviceProduct(), SDL_JoystickGetDeviceProductVersion(), SDL_JoystickGetDeviceType(), and SDL_JoystickGetDeviceVendor().

1490 {
1491  SDL_JoystickDriver *driver;
1492  SDL_JoystickGUID guid;
1493 
1495  if (SDL_GetDriverAndJoystickIndex(device_index, &driver, &device_index)) {
1496  guid = driver->GetDeviceGUID(device_index);
1497  } else {
1498  SDL_zero(guid);
1499  }
1501 
1502  return guid;
1503 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
#define SDL_zero(x)
Definition: SDL_stdinc.h:416
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
SDL_JoystickGUID(* GetDeviceGUID)(int device_index)
SDL_bool SDL_GetDriverAndJoystickIndex(int device_index, SDL_JoystickDriver **driver, int *driver_index)
Definition: SDL_joystick.c:173

◆ SDL_JoystickGetDeviceIndexFromInstanceID()

int SDL_JoystickGetDeviceIndexFromInstanceID ( SDL_JoystickID  instance_id)

Definition at line 1560 of file SDL_joystick.c.

References i, SDL_JoystickGetDeviceInstanceID(), SDL_LockJoysticks(), SDL_NumJoysticks(), and SDL_UnlockJoysticks().

Referenced by SDL_PrivateJoystickAdded().

1561 {
1562  int i, num_joysticks, device_index = -1;
1563 
1565  num_joysticks = SDL_NumJoysticks();
1566  for (i = 0; i < num_joysticks; ++i) {
1567  if (SDL_JoystickGetDeviceInstanceID(i) == instance_id) {
1568  device_index = i;
1569  break;
1570  }
1571  }
1573 
1574  return device_index;
1575 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
int SDL_NumJoysticks(void)
Definition: SDL_joystick.c:148
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SDL_JoystickID SDL_JoystickGetDeviceInstanceID(int device_index)

◆ SDL_JoystickGetDeviceInstanceID()

SDL_JoystickID SDL_JoystickGetDeviceInstanceID ( int  device_index)

Get the instance ID of a joystick. This can be called before any joysticks are opened. If the index is out of range, this function will return -1.

Definition at line 1546 of file SDL_joystick.c.

References SDL_JoystickDriver::GetDeviceInstanceID, SDL_GetDriverAndJoystickIndex(), SDL_LockJoysticks(), and SDL_UnlockJoysticks().

Referenced by SDL_JoystickGetDeviceIndexFromInstanceID().

1547 {
1548  SDL_JoystickDriver *driver;
1549  SDL_JoystickID instance_id = -1;
1550 
1552  if (SDL_GetDriverAndJoystickIndex(device_index, &driver, &device_index)) {
1553  instance_id = driver->GetDeviceInstanceID(device_index);
1554  }
1556 
1557  return instance_id;
1558 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
SDL_JoystickID(* GetDeviceInstanceID)(int device_index)
Sint32 SDL_JoystickID
Definition: SDL_joystick.h:81
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
SDL_bool SDL_GetDriverAndJoystickIndex(int device_index, SDL_JoystickDriver **driver, int *driver_index)
Definition: SDL_joystick.c:173

◆ SDL_JoystickGetDevicePlayerIndex()

int SDL_JoystickGetDevicePlayerIndex ( int  device_index)

Get the player index of a joystick, or -1 if it's not available This can be called before any joysticks are opened.

Definition at line 231 of file SDL_joystick.c.

References SDL_JoystickDriver::GetDevicePlayerIndex, SDL_GetDriverAndJoystickIndex(), SDL_LockJoysticks(), and SDL_UnlockJoysticks().

232 {
233  SDL_JoystickDriver *driver;
234  int player_index = -1;
235 
237  if (SDL_GetDriverAndJoystickIndex(device_index, &driver, &device_index)) {
238  player_index = driver->GetDevicePlayerIndex(device_index);
239  }
241 
242  return player_index;
243 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
int(* GetDevicePlayerIndex)(int device_index)
SDL_bool SDL_GetDriverAndJoystickIndex(int device_index, SDL_JoystickDriver **driver, int *driver_index)
Definition: SDL_joystick.c:173

◆ SDL_JoystickGetDeviceProduct()

Uint16 SDL_JoystickGetDeviceProduct ( int  device_index)

Get the USB product ID of a joystick, if available. This can be called before any joysticks are opened. If the product ID isn't available this function returns 0.

Definition at line 1514 of file SDL_joystick.c.

References NULL, SDL_GetJoystickGUIDInfo(), and SDL_JoystickGetDeviceGUID().

1515 {
1516  Uint16 product;
1517  SDL_JoystickGUID guid = SDL_JoystickGetDeviceGUID(device_index);
1518 
1519  SDL_GetJoystickGUIDInfo(guid, NULL, &product, NULL);
1520  return product;
1521 }
uint16_t Uint16
Definition: SDL_stdinc.h:191
SDL_JoystickGUID SDL_JoystickGetDeviceGUID(int device_index)
#define NULL
Definition: begin_code.h:167
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)

◆ SDL_JoystickGetDeviceProductVersion()

Uint16 SDL_JoystickGetDeviceProductVersion ( int  device_index)

Get the product version of a joystick, if available. This can be called before any joysticks are opened. If the product version isn't available this function returns 0.

Definition at line 1523 of file SDL_joystick.c.

References NULL, SDL_GetJoystickGUIDInfo(), and SDL_JoystickGetDeviceGUID().

1524 {
1525  Uint16 version;
1526  SDL_JoystickGUID guid = SDL_JoystickGetDeviceGUID(device_index);
1527 
1528  SDL_GetJoystickGUIDInfo(guid, NULL, NULL, &version);
1529  return version;
1530 }
uint16_t Uint16
Definition: SDL_stdinc.h:191
SDL_JoystickGUID SDL_JoystickGetDeviceGUID(int device_index)
#define NULL
Definition: begin_code.h:167
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)

◆ SDL_JoystickGetDeviceType()

SDL_JoystickType SDL_JoystickGetDeviceType ( int  device_index)

Get the type of a joystick, if available. This can be called before any joysticks are opened.

Definition at line 1532 of file SDL_joystick.c.

References SDL_GetJoystickGUIDType(), SDL_IsGameController, SDL_JOYSTICK_TYPE_GAMECONTROLLER, SDL_JOYSTICK_TYPE_UNKNOWN, and SDL_JoystickGetDeviceGUID().

1533 {
1535  SDL_JoystickGUID guid = SDL_JoystickGetDeviceGUID(device_index);
1536 
1537  type = SDL_GetJoystickGUIDType(guid);
1538  if (type == SDL_JOYSTICK_TYPE_UNKNOWN) {
1539  if (SDL_IsGameController(device_index)) {
1541  }
1542  }
1543  return type;
1544 }
#define SDL_IsGameController
SDL_JoystickType
Definition: SDL_joystick.h:83
SDL_JoystickGUID SDL_JoystickGetDeviceGUID(int device_index)
GLuint GLuint GLsizei GLenum type
Definition: SDL_opengl.h:1571
static SDL_JoystickType SDL_GetJoystickGUIDType(SDL_JoystickGUID guid)

◆ SDL_JoystickGetDeviceVendor()

Uint16 SDL_JoystickGetDeviceVendor ( int  device_index)

Get the USB vendor ID of a joystick, if available. This can be called before any joysticks are opened. If the vendor ID isn't available this function returns 0.

Definition at line 1505 of file SDL_joystick.c.

References NULL, SDL_GetJoystickGUIDInfo(), and SDL_JoystickGetDeviceGUID().

1506 {
1507  Uint16 vendor;
1508  SDL_JoystickGUID guid = SDL_JoystickGetDeviceGUID(device_index);
1509 
1510  SDL_GetJoystickGUIDInfo(guid, &vendor, NULL, NULL);
1511  return vendor;
1512 }
uint16_t Uint16
Definition: SDL_stdinc.h:191
SDL_JoystickGUID SDL_JoystickGetDeviceGUID(int device_index)
#define NULL
Definition: begin_code.h:167
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)

◆ SDL_JoystickGetGUID()

SDL_JoystickGUID SDL_JoystickGetGUID ( SDL_Joystick *  joystick)

Return the GUID for this opened joystick

Definition at line 1577 of file SDL_joystick.c.

References SDL_PrivateJoystickValid(), and SDL_zero.

Referenced by SDL_JoystickGetProduct(), SDL_JoystickGetProductVersion(), SDL_JoystickGetType(), and SDL_JoystickGetVendor().

1578 {
1579  if (!SDL_PrivateJoystickValid(joystick)) {
1580  SDL_JoystickGUID emptyGUID;
1581  SDL_zero(emptyGUID);
1582  return emptyGUID;
1583  }
1584  return joystick->guid;
1585 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394
#define SDL_zero(x)
Definition: SDL_stdinc.h:416

◆ SDL_JoystickGetGUIDFromString()

SDL_JoystickGUID SDL_JoystickGetGUIDFromString ( const char *  pchGUID)

Convert a string into a joystick guid

Definition at line 1674 of file SDL_joystick.c.

References i, nibble(), SDL_memset, and SDL_strlen.

1675 {
1676  SDL_JoystickGUID guid;
1677  int maxoutputbytes= sizeof(guid);
1678  size_t len = SDL_strlen(pchGUID);
1679  Uint8 *p;
1680  size_t i;
1681 
1682  /* Make sure it's even */
1683  len = (len) & ~0x1;
1684 
1685  SDL_memset(&guid, 0x00, sizeof(guid));
1686 
1687  p = (Uint8 *)&guid;
1688  for (i = 0; (i < len) && ((p - (Uint8 *)&guid) < maxoutputbytes); i+=2, p++) {
1689  *p = (nibble(pchGUID[i]) << 4) | nibble(pchGUID[i+1]);
1690  }
1691 
1692  return guid;
1693 }
GLuint GLfloat GLfloat GLfloat x1
GLfloat GLfloat p
GLenum GLsizei len
uint8_t Uint8
Definition: SDL_stdinc.h:179
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
static unsigned char nibble(char c)
#define SDL_strlen
#define SDL_memset

◆ SDL_JoystickGetGUIDString()

void SDL_JoystickGetGUIDString ( SDL_JoystickGUID  guid,
char *  pszGUID,
int  cbGUID 
)

Return a string representation for this guid. pszGUID must point to at least 33 bytes (32 for the string plus a NULL terminator).

Definition at line 1629 of file SDL_joystick.c.

References SDL_JoystickGUID::data, i, and NULL.

1630 {
1631  static const char k_rgchHexToASCII[] = "0123456789abcdef";
1632  int i;
1633 
1634  if ((pszGUID == NULL) || (cbGUID <= 0)) {
1635  return;
1636  }
1637 
1638  for (i = 0; i < sizeof(guid.data) && i < (cbGUID-1)/2; i++) {
1639  /* each input byte writes 2 ascii chars, and might write a null byte. */
1640  /* If we don't have room for next input byte, stop */
1641  unsigned char c = guid.data[i];
1642 
1643  *pszGUID++ = k_rgchHexToASCII[c >> 4];
1644  *pszGUID++ = k_rgchHexToASCII[c & 0x0F];
1645  }
1646  *pszGUID = '\0';
1647 }
Uint8 data[16]
Definition: SDL_joystick.h:71
const GLubyte * c
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:167

◆ SDL_JoystickGetHat()

Uint8 SDL_JoystickGetHat ( SDL_Joystick *  joystick,
int  hat 
)

Get the current state of a POV hat on a joystick.

The hat indices start at index 0.

Returns
The return value is one of the following positions:

Definition at line 499 of file SDL_joystick.c.

References SDL_PrivateJoystickValid(), SDL_SetError, and state.

500 {
501  Uint8 state;
502 
503  if (!SDL_PrivateJoystickValid(joystick)) {
504  return 0;
505  }
506  if (hat < joystick->nhats) {
507  state = joystick->hats[hat];
508  } else {
509  SDL_SetError("Joystick only has %d hats", joystick->nhats);
510  state = 0;
511  }
512  return state;
513 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394
struct xkb_state * state
uint8_t Uint8
Definition: SDL_stdinc.h:179
#define SDL_SetError

◆ SDL_JoystickGetPlayerIndex()

int SDL_JoystickGetPlayerIndex ( SDL_Joystick *  joystick)

Get the player index of an opened joystick, or -1 if it's not available

For XInput controllers this returns the XInput user index.

Definition at line 622 of file SDL_joystick.c.

References SDL_PrivateJoystickValid().

623 {
624  if (!SDL_PrivateJoystickValid(joystick)) {
625  return -1;
626  }
627  return joystick->player_index;
628 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickGetProduct()

Uint16 SDL_JoystickGetProduct ( SDL_Joystick *  joystick)

Get the USB product ID of an opened joystick, if available. If the product ID isn't available this function returns 0.

Definition at line 1596 of file SDL_joystick.c.

References NULL, SDL_GetJoystickGUIDInfo(), and SDL_JoystickGetGUID().

Referenced by SDL_JoystickAxesCenteredAtZero().

1597 {
1598  Uint16 product;
1599  SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
1600 
1601  SDL_GetJoystickGUIDInfo(guid, NULL, &product, NULL);
1602  return product;
1603 }
uint16_t Uint16
Definition: SDL_stdinc.h:191
SDL_JoystickGUID SDL_JoystickGetGUID(SDL_Joystick *joystick)
#define NULL
Definition: begin_code.h:167
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)

◆ SDL_JoystickGetProductVersion()

Uint16 SDL_JoystickGetProductVersion ( SDL_Joystick *  joystick)

Get the product version of an opened joystick, if available. If the product version isn't available this function returns 0.

Definition at line 1605 of file SDL_joystick.c.

References NULL, SDL_GetJoystickGUIDInfo(), and SDL_JoystickGetGUID().

1606 {
1607  Uint16 version;
1608  SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
1609 
1610  SDL_GetJoystickGUIDInfo(guid, NULL, NULL, &version);
1611  return version;
1612 }
uint16_t Uint16
Definition: SDL_stdinc.h:191
SDL_JoystickGUID SDL_JoystickGetGUID(SDL_Joystick *joystick)
#define NULL
Definition: begin_code.h:167
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)

◆ SDL_JoystickGetType()

SDL_JoystickType SDL_JoystickGetType ( SDL_Joystick *  joystick)

Get the type of an opened joystick.

Definition at line 1614 of file SDL_joystick.c.

References SDL_GetJoystickGUIDType(), SDL_JOYSTICK_TYPE_GAMECONTROLLER, SDL_JOYSTICK_TYPE_UNKNOWN, and SDL_JoystickGetGUID().

1615 {
1617  SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
1618 
1619  type = SDL_GetJoystickGUIDType(guid);
1620  if (type == SDL_JOYSTICK_TYPE_UNKNOWN) {
1621  if (joystick && joystick->is_game_controller) {
1623  }
1624  }
1625  return type;
1626 }
SDL_JoystickGUID SDL_JoystickGetGUID(SDL_Joystick *joystick)
SDL_JoystickType
Definition: SDL_joystick.h:83
GLuint GLuint GLsizei GLenum type
Definition: SDL_opengl.h:1571
static SDL_JoystickType SDL_GetJoystickGUIDType(SDL_JoystickGUID guid)

◆ SDL_JoystickGetVendor()

Uint16 SDL_JoystickGetVendor ( SDL_Joystick *  joystick)

Get the USB vendor ID of an opened joystick, if available. If the vendor ID isn't available this function returns 0.

Definition at line 1587 of file SDL_joystick.c.

References NULL, SDL_GetJoystickGUIDInfo(), and SDL_JoystickGetGUID().

Referenced by SDL_JoystickAxesCenteredAtZero().

1588 {
1589  Uint16 vendor;
1590  SDL_JoystickGUID guid = SDL_JoystickGetGUID(joystick);
1591 
1592  SDL_GetJoystickGUIDInfo(guid, &vendor, NULL, NULL);
1593  return vendor;
1594 }
uint16_t Uint16
Definition: SDL_stdinc.h:191
SDL_JoystickGUID SDL_JoystickGetGUID(SDL_Joystick *joystick)
#define NULL
Definition: begin_code.h:167
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)

◆ SDL_JoystickInit()

int SDL_JoystickInit ( void  )

Definition at line 114 of file SDL_joystick.c.

References i, NULL, SDL_AddHintCallback, SDL_arraysize, SDL_CreateMutex, SDL_GameControllerInitMappings(), SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, SDL_INIT_EVENTS, SDL_InitSubSystem, and SDL_JoystickAllowBackgroundEventsChanged().

Referenced by SDL_InitSubSystem().

115 {
116  int i, status;
117 
119 
120  /* Create the joystick list lock */
121  if (!SDL_joystick_lock) {
123  }
124 
125  /* See if we should allow joystick events while in the background */
128 
129 #if !SDL_EVENTS_DISABLED
131  return -1;
132  }
133 #endif /* !SDL_EVENTS_DISABLED */
134 
135  status = -1;
136  for (i = 0; i < SDL_arraysize(SDL_joystick_drivers); ++i) {
137  if (SDL_joystick_drivers[i]->Init() >= 0) {
138  status = 0;
139  }
140  }
141  return status;
142 }
#define SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS
A variable that lets you enable joystick (and gamecontroller) events even when your app is in the bac...
Definition: SDL_hints.h:496
#define SDL_INIT_EVENTS
Definition: SDL.h:83
int SDL_GameControllerInitMappings(void)
static SDL_mutex * SDL_joystick_lock
Definition: SDL_joystick.c:83
#define SDL_CreateMutex
#define SDL_InitSubSystem
static SDL_JoystickDriver * SDL_joystick_drivers[]
Definition: SDL_joystick.c:48
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:167
#define SDL_AddHintCallback
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115
static void SDL_JoystickAllowBackgroundEventsChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
Definition: SDL_joystick.c:104

◆ SDL_JoystickInstanceID()

SDL_JoystickID SDL_JoystickInstanceID ( SDL_Joystick *  joystick)

Get the instance ID of an opened joystick or -1 if the joystick is invalid.

Definition at line 581 of file SDL_joystick.c.

References SDL_PrivateJoystickValid().

582 {
583  if (!SDL_PrivateJoystickValid(joystick)) {
584  return -1;
585  }
586 
587  return joystick->instance_id;
588 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickName()

const char* SDL_JoystickName ( SDL_Joystick *  joystick)

Return the name for this currently opened joystick. If no name can be found, this function returns NULL.

Definition at line 612 of file SDL_joystick.c.

References NULL, SDL_FixupJoystickName(), and SDL_PrivateJoystickValid().

613 {
614  if (!SDL_PrivateJoystickValid(joystick)) {
615  return NULL;
616  }
617 
618  return SDL_FixupJoystickName(joystick->name);
619 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394
static const char * SDL_FixupJoystickName(const char *name)
Definition: SDL_joystick.c:198
#define NULL
Definition: begin_code.h:167

◆ SDL_JoystickNameForIndex()

const char* SDL_JoystickNameForIndex ( int  device_index)

Get the implementation dependent name of a joystick. This can be called before any joysticks are opened. If no name can be found, this function returns NULL.

Definition at line 215 of file SDL_joystick.c.

References SDL_JoystickDriver::GetDeviceName, NULL, SDL_FixupJoystickName(), SDL_GetDriverAndJoystickIndex(), SDL_LockJoysticks(), and SDL_UnlockJoysticks().

216 {
217  SDL_JoystickDriver *driver;
218  const char *name = NULL;
219 
221  if (SDL_GetDriverAndJoystickIndex(device_index, &driver, &device_index)) {
222  name = SDL_FixupJoystickName(driver->GetDeviceName(device_index));
223  }
225 
226  /* FIXME: Really we should reference count this name so it doesn't go away after unlock */
227  return name;
228 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
GLuint const GLchar * name
const char *(* GetDeviceName)(int device_index)
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
static const char * SDL_FixupJoystickName(const char *name)
Definition: SDL_joystick.c:198
#define NULL
Definition: begin_code.h:167
SDL_bool SDL_GetDriverAndJoystickIndex(int device_index, SDL_JoystickDriver **driver, int *driver_index)
Definition: SDL_joystick.c:173

◆ SDL_JoystickNumAxes()

int SDL_JoystickNumAxes ( SDL_Joystick *  joystick)

Get the number of general axis controls on a joystick.

Definition at line 412 of file SDL_joystick.c.

References SDL_PrivateJoystickValid().

413 {
414  if (!SDL_PrivateJoystickValid(joystick)) {
415  return -1;
416  }
417  return joystick->naxes;
418 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickNumBalls()

int SDL_JoystickNumBalls ( SDL_Joystick *  joystick)

Get the number of trackballs on a joystick.

Joystick trackballs have only relative motion events associated with them and their state cannot be polled.

Definition at line 436 of file SDL_joystick.c.

References SDL_PrivateJoystickValid().

437 {
438  if (!SDL_PrivateJoystickValid(joystick)) {
439  return -1;
440  }
441  return joystick->nballs;
442 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickNumButtons()

int SDL_JoystickNumButtons ( SDL_Joystick *  joystick)

Get the number of buttons on a joystick.

Definition at line 448 of file SDL_joystick.c.

References SDL_PrivateJoystickValid().

449 {
450  if (!SDL_PrivateJoystickValid(joystick)) {
451  return -1;
452  }
453  return joystick->nbuttons;
454 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickNumHats()

int SDL_JoystickNumHats ( SDL_Joystick *  joystick)

Get the number of POV hats on a joystick.

Definition at line 424 of file SDL_joystick.c.

References SDL_PrivateJoystickValid().

425 {
426  if (!SDL_PrivateJoystickValid(joystick)) {
427  return -1;
428  }
429  return joystick->nhats;
430 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickOpen()

SDL_Joystick* SDL_JoystickOpen ( int  device_index)

Open a joystick for use. The index passed as an argument refers to the N'th joystick on the system. This index is not the value which will identify this joystick in future joystick events. The joystick's instance id (SDL_JoystickID) will be used there instead.

Returns
A joystick identifier, or NULL if an error occurred.

Definition at line 285 of file SDL_joystick.c.

References SDL_JoystickDriver::GetDeviceGUID, SDL_JoystickDriver::GetDeviceInstanceID, SDL_JoystickDriver::GetDeviceName, i, SDL_GameController::joystick, NULL, SDL_JoystickDriver::Open, SDL_calloc, SDL_free, SDL_GetDriverAndJoystickIndex(), SDL_IsGameController, SDL_JOYSTICK_POWER_UNKNOWN, SDL_JoystickAxesCenteredAtZero(), SDL_JoystickClose(), SDL_joysticks, SDL_LockJoysticks(), SDL_OutOfMemory, SDL_strdup, SDL_TRUE, SDL_UnlockJoysticks(), and SDL_JoystickDriver::Update.

286 {
287  SDL_JoystickDriver *driver;
288  SDL_JoystickID instance_id;
289  SDL_Joystick *joystick;
290  SDL_Joystick *joysticklist;
291  const char *joystickname = NULL;
292 
294 
295  if (!SDL_GetDriverAndJoystickIndex(device_index, &driver, &device_index)) {
297  return NULL;
298  }
299 
300  joysticklist = SDL_joysticks;
301  /* If the joystick is already open, return it
302  * it is important that we have a single joystick * for each instance id
303  */
304  instance_id = driver->GetDeviceInstanceID(device_index);
305  while (joysticklist) {
306  if (instance_id == joysticklist->instance_id) {
307  joystick = joysticklist;
308  ++joystick->ref_count;
310  return joystick;
311  }
312  joysticklist = joysticklist->next;
313  }
314 
315  /* Create and initialize the joystick */
316  joystick = (SDL_Joystick *) SDL_calloc(sizeof(*joystick), 1);
317  if (joystick == NULL) {
318  SDL_OutOfMemory();
320  return NULL;
321  }
322  joystick->driver = driver;
323  joystick->instance_id = instance_id;
324  joystick->attached = SDL_TRUE;
325  joystick->player_index = -1;
326  joystick->epowerlevel = SDL_JOYSTICK_POWER_UNKNOWN;
327 
328  if (driver->Open(joystick, device_index) < 0) {
329  SDL_free(joystick);
331  return NULL;
332  }
333 
334  joystickname = driver->GetDeviceName(device_index);
335  if (joystickname) {
336  joystick->name = SDL_strdup(joystickname);
337  } else {
338  joystick->name = NULL;
339  }
340 
341  joystick->guid = driver->GetDeviceGUID(device_index);
342 
343  if (joystick->naxes > 0) {
344  joystick->axes = (SDL_JoystickAxisInfo *) SDL_calloc(joystick->naxes, sizeof(SDL_JoystickAxisInfo));
345  }
346  if (joystick->nhats > 0) {
347  joystick->hats = (Uint8 *) SDL_calloc(joystick->nhats, sizeof(Uint8));
348  }
349  if (joystick->nballs > 0) {
350  joystick->balls = (struct balldelta *) SDL_calloc(joystick->nballs, sizeof(*joystick->balls));
351  }
352  if (joystick->nbuttons > 0) {
353  joystick->buttons = (Uint8 *) SDL_calloc(joystick->nbuttons, sizeof(Uint8));
354  }
355  if (((joystick->naxes > 0) && !joystick->axes)
356  || ((joystick->nhats > 0) && !joystick->hats)
357  || ((joystick->nballs > 0) && !joystick->balls)
358  || ((joystick->nbuttons > 0) && !joystick->buttons)) {
359  SDL_OutOfMemory();
360  SDL_JoystickClose(joystick);
362  return NULL;
363  }
364 
365  /* If this joystick is known to have all zero centered axes, skip the auto-centering code */
366  if (SDL_JoystickAxesCenteredAtZero(joystick)) {
367  int i;
368 
369  for (i = 0; i < joystick->naxes; ++i) {
370  joystick->axes[i].has_initial_value = SDL_TRUE;
371  }
372  }
373 
374  joystick->is_game_controller = SDL_IsGameController(device_index);
375 
376  /* Add joystick to list */
377  ++joystick->ref_count;
378  /* Link the joystick in the list */
379  joystick->next = SDL_joysticks;
380  SDL_joysticks = joystick;
381 
383 
384  driver->Update(joystick);
385 
386  return joystick;
387 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
void SDL_JoystickClose(SDL_Joystick *joystick)
Definition: SDL_joystick.c:643
#define SDL_IsGameController
SDL_JoystickID(* GetDeviceInstanceID)(int device_index)
Sint32 SDL_JoystickID
Definition: SDL_joystick.h:81
uint8_t Uint8
Definition: SDL_stdinc.h:179
#define SDL_free
const char *(* GetDeviceName)(int device_index)
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
void(* Update)(SDL_Joystick *joystick)
SDL_JoystickGUID(* GetDeviceGUID)(int device_index)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:167
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
int(* Open)(SDL_Joystick *joystick, int device_index)
#define SDL_calloc
#define SDL_strdup
static SDL_bool SDL_JoystickAxesCenteredAtZero(SDL_Joystick *joystick)
Definition: SDL_joystick.c:251
SDL_bool SDL_GetDriverAndJoystickIndex(int device_index, SDL_JoystickDriver **driver, int *driver_index)
Definition: SDL_joystick.c:173
static SDL_Joystick * SDL_joysticks
Definition: SDL_joystick.c:81

◆ SDL_JoystickQuit()

void SDL_JoystickQuit ( void  )

Definition at line 697 of file SDL_joystick.c.

References i, mutex, NULL, SDL_JoystickDriver::Quit, SDL_arraysize, SDL_Delay, SDL_DelHintCallback, SDL_DestroyMutex, SDL_GameControllerQuitMappings(), SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, SDL_INIT_EVENTS, SDL_joystick_lock, SDL_JoystickAllowBackgroundEventsChanged(), SDL_JoystickClose(), SDL_joysticks, SDL_LockJoysticks(), SDL_QuitSubSystem, SDL_UnlockJoysticks(), and SDL_updating_joystick.

Referenced by SDL_QuitSubSystem().

698 {
699  int i;
700 
701  /* Make sure we're not getting called in the middle of updating joysticks */
703  while (SDL_updating_joystick) {
705  SDL_Delay(1);
707  }
708 
709  /* Stop the event polling */
710  while (SDL_joysticks) {
711  SDL_joysticks->ref_count = 1;
713  }
714 
715  /* Quit the joystick setup */
716  for (i = 0; i < SDL_arraysize(SDL_joystick_drivers); ++i) {
718  }
719 
721 
722 #if !SDL_EVENTS_DISABLED
724 #endif
725 
728 
729  if (SDL_joystick_lock) {
732  SDL_DestroyMutex(mutex);
733  }
734 
736 }
#define SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS
A variable that lets you enable joystick (and gamecontroller) events even when your app is in the bac...
Definition: SDL_hints.h:496
#define SDL_INIT_EVENTS
Definition: SDL.h:83
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
void(* Quit)(void)
void SDL_JoystickClose(SDL_Joystick *joystick)
Definition: SDL_joystick.c:643
void SDL_GameControllerQuitMappings(void)
static SDL_mutex * SDL_joystick_lock
Definition: SDL_joystick.c:83
#define SDL_QuitSubSystem
static SDL_mutex * mutex
Definition: testlock.c:23
static SDL_JoystickDriver * SDL_joystick_drivers[]
Definition: SDL_joystick.c:48
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
#define SDL_Delay
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:167
#define SDL_DestroyMutex
#define SDL_DelHintCallback
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115
static void SDL_JoystickAllowBackgroundEventsChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
Definition: SDL_joystick.c:104
static SDL_bool SDL_updating_joystick
Definition: SDL_joystick.c:82
static SDL_Joystick * SDL_joysticks
Definition: SDL_joystick.c:81

◆ SDL_JoystickRumble()

int SDL_JoystickRumble ( SDL_Joystick *  joystick,
Uint16  low_frequency_rumble,
Uint16  high_frequency_rumble,
Uint32  duration_ms 
)

Trigger a rumble effect Each call to this function cancels any previous rumble effect, and calling it with 0 intensity stops any rumbling.

Parameters
joystickThe joystick to vibrate
low_frequency_rumbleThe intensity of the low frequency (left) rumble motor, from 0 to 0xFFFF
high_frequency_rumbleThe intensity of the high frequency (right) rumble motor, from 0 to 0xFFFF
duration_msThe duration of the rumble effect, in milliseconds
Returns
0, or -1 if rumble isn't supported on this joystick

Definition at line 631 of file SDL_joystick.c.

References SDL_PrivateJoystickValid().

632 {
633  if (!SDL_PrivateJoystickValid(joystick)) {
634  return -1;
635  }
636  return joystick->driver->Rumble(joystick, low_frequency_rumble, high_frequency_rumble, duration_ms);
637 }
int SDL_PrivateJoystickValid(SDL_Joystick *joystick)
Definition: SDL_joystick.c:394

◆ SDL_JoystickUpdate()

void SDL_JoystickUpdate ( void  )

Update the current state of the open joysticks.

This is called automatically by the event loop if any joystick events are enabled.

Definition at line 1018 of file SDL_joystick.c.

References SDL_JoystickDriver::Detect, i, SDL_arraysize, SDL_FALSE, SDL_GameControllerHandleDelayedGuideButton(), SDL_HAT_CENTERED, SDL_INIT_JOYSTICK, SDL_JoystickClose(), SDL_joysticks, SDL_LockJoysticks(), SDL_PrivateJoystickAxis(), SDL_PrivateJoystickButton(), SDL_PrivateJoystickHat(), SDL_TRUE, SDL_UnlockJoysticks(), SDL_updating_joystick, and SDL_WasInit.

1019 {
1020  int i;
1021  SDL_Joystick *joystick;
1022 
1024  return;
1025  }
1026 
1028 
1029  if (SDL_updating_joystick) {
1030  /* The joysticks are already being updated */
1032  return;
1033  }
1034 
1036 
1037  /* Make sure the list is unlocked while dispatching events to prevent application deadlocks */
1039 
1040  for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
1041  if (joystick->attached) {
1042  /* This should always be true, but seeing a crash in the wild...? */
1043  if (joystick->driver) {
1044  joystick->driver->Update(joystick);
1045  }
1046 
1047  if (joystick->delayed_guide_button) {
1049  }
1050  }
1051 
1052  if (joystick->force_recentering) {
1053  /* Tell the app that everything is centered/unpressed... */
1054  for (i = 0; i < joystick->naxes; i++) {
1055  if (joystick->axes[i].has_initial_value) {
1056  SDL_PrivateJoystickAxis(joystick, i, joystick->axes[i].zero);
1057  }
1058  }
1059 
1060  for (i = 0; i < joystick->nbuttons; i++) {
1061  SDL_PrivateJoystickButton(joystick, i, 0);
1062  }
1063 
1064  for (i = 0; i < joystick->nhats; i++) {
1066  }
1067 
1068  joystick->force_recentering = SDL_FALSE;
1069  }
1070  }
1071 
1073 
1075 
1076  /* If any joysticks were closed while updating, free them here */
1077  for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
1078  if (joystick->ref_count <= 0) {
1079  SDL_JoystickClose(joystick);
1080  }
1081  }
1082 
1083  /* this needs to happen AFTER walking the joystick list above, so that any
1084  dangling hardware data from removed devices can be free'd
1085  */
1086  for (i = 0; i < SDL_arraysize(SDL_joystick_drivers); ++i) {
1088  }
1089 
1091 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
void SDL_JoystickClose(SDL_Joystick *joystick)
Definition: SDL_joystick.c:643
int SDL_PrivateJoystickHat(SDL_Joystick *joystick, Uint8 hat, Uint8 value)
Definition: SDL_joystick.c:890
#define SDL_INIT_JOYSTICK
Definition: SDL.h:80
int SDL_PrivateJoystickButton(SDL_Joystick *joystick, Uint8 button, Uint8 state)
Definition: SDL_joystick.c:966
void(* Detect)(void)
void SDL_GameControllerHandleDelayedGuideButton(SDL_Joystick *joystick)
int SDL_PrivateJoystickAxis(SDL_Joystick *joystick, Uint8 axis, Sint16 value)
Definition: SDL_joystick.c:833
static SDL_JoystickDriver * SDL_joystick_drivers[]
Definition: SDL_joystick.c:48
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115
#define SDL_WasInit
#define SDL_HAT_CENTERED
Definition: SDL_joystick.h:329
static SDL_bool SDL_updating_joystick
Definition: SDL_joystick.c:82
static SDL_Joystick * SDL_joysticks
Definition: SDL_joystick.c:81

◆ SDL_LockJoysticks()

void SDL_LockJoysticks ( void  )

Locking for multi-threaded access to the joystick API

If you are using the joystick API or handling events from multiple threads you should use these locking functions to protect access to the joysticks.

In particular, you are guaranteed that the joystick list won't change, so the API functions that take a joystick index will be valid, and joystick and game controller events will not be delivered.

Definition at line 87 of file SDL_joystick.c.

References SDL_LockMutex.

Referenced by SDL_JoystickClose(), SDL_JoystickFromInstanceID(), SDL_JoystickGetDeviceGUID(), SDL_JoystickGetDeviceIndexFromInstanceID(), SDL_JoystickGetDeviceInstanceID(), SDL_JoystickGetDevicePlayerIndex(), SDL_JoystickNameForIndex(), SDL_JoystickOpen(), SDL_JoystickQuit(), SDL_JoystickUpdate(), and SDL_NumJoysticks().

88 {
89  if (SDL_joystick_lock) {
91  }
92 }
#define SDL_LockMutex
static SDL_mutex * SDL_joystick_lock
Definition: SDL_joystick.c:83

◆ SDL_NumJoysticks()

int SDL_NumJoysticks ( void  )

Count the number of joysticks attached to the system right now

Definition at line 148 of file SDL_joystick.c.

References SDL_JoystickDriver::GetCount, i, SDL_arraysize, SDL_LockJoysticks(), and SDL_UnlockJoysticks().

Referenced by SDL_JoystickGetDeviceIndexFromInstanceID().

149 {
150  int i, total_joysticks = 0;
152  for (i = 0; i < SDL_arraysize(SDL_joystick_drivers); ++i) {
153  total_joysticks += SDL_joystick_drivers[i]->GetCount();
154  }
156  return total_joysticks;
157 }
void SDL_LockJoysticks(void)
Definition: SDL_joystick.c:87
int(* GetCount)(void)
static SDL_JoystickDriver * SDL_joystick_drivers[]
Definition: SDL_joystick.c:48
void SDL_UnlockJoysticks(void)
Definition: SDL_joystick.c:95
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115

◆ SDL_PrivateJoystickAdded()

void SDL_PrivateJoystickAdded ( SDL_JoystickID  device_instance)

Definition at line 755 of file SDL_joystick.c.

References SDL_ENABLE, SDL_GetEventState, SDL_JOYDEVICEADDED, SDL_JoystickGetDeviceIndexFromInstanceID(), SDL_PushEvent, and SDL_Event::type.

Referenced by IOS_AddJoystickDevice().

756 {
757 #if !SDL_EVENTS_DISABLED
759  int device_index;
760 
761  device_index = SDL_JoystickGetDeviceIndexFromInstanceID(device_instance);
762  if (device_index < 0) {
763  return;
764  }
765 
766  event.type = SDL_JOYDEVICEADDED;
767 
768  if (SDL_GetEventState(event.type) == SDL_ENABLE) {
769  event.jdevice.which = device_index;
770  SDL_PushEvent(&event);
771  }
772 #endif /* !SDL_EVENTS_DISABLED */
773 }
int SDL_JoystickGetDeviceIndexFromInstanceID(SDL_JoystickID instance_id)
#define SDL_ENABLE
Definition: SDL_events.h:759
#define SDL_GetEventState(type)
Definition: SDL_events.h:772
struct _cl_event * event
#define SDL_PushEvent
General event structure.
Definition: SDL_events.h:557
Uint32 type
Definition: SDL_events.h:559

◆ SDL_PrivateJoystickAxis()

int SDL_PrivateJoystickAxis ( SDL_Joystick *  joystick,
Uint8  axis,
Sint16  value 
)

Definition at line 833 of file SDL_joystick.c.

References axis, SDL_abs, SDL_ENABLE, SDL_GetEventState, SDL_JOYAXISMOTION, SDL_JOYSTICK_AXIS_MAX, SDL_PrivateJoystickAxis(), SDL_PrivateJoystickShouldIgnoreEvent(), SDL_PushEvent, and SDL_TRUE.

Referenced by IOS_AccelerometerUpdate(), IOS_MFIJoystickUpdate(), SDL_JoystickUpdate(), and SDL_PrivateJoystickAxis().

834 {
835  int posted;
836 
837  /* Make sure we're not getting garbage or duplicate events */
838  if (axis >= joystick->naxes) {
839  return 0;
840  }
841  if (!joystick->axes[axis].has_initial_value) {
842  joystick->axes[axis].initial_value = value;
843  joystick->axes[axis].value = value;
844  joystick->axes[axis].zero = value;
845  joystick->axes[axis].has_initial_value = SDL_TRUE;
846  }
847  if (value == joystick->axes[axis].value) {
848  return 0;
849  }
850  if (!joystick->axes[axis].sent_initial_value) {
851  /* Make sure we don't send motion until there's real activity on this axis */
852  const int MAX_ALLOWED_JITTER = SDL_JOYSTICK_AXIS_MAX / 80; /* ShanWan PS3 controller needed 96 */
853  if (SDL_abs(value - joystick->axes[axis].value) <= MAX_ALLOWED_JITTER) {
854  return 0;
855  }
856  joystick->axes[axis].sent_initial_value = SDL_TRUE;
857  joystick->axes[axis].value = value; /* Just so we pass the check above */
858  SDL_PrivateJoystickAxis(joystick, axis, joystick->axes[axis].initial_value);
859  }
860 
861  /* We ignore events if we don't have keyboard focus, except for centering
862  * events.
863  */
865  if ((value > joystick->axes[axis].zero && value >= joystick->axes[axis].value) ||
866  (value < joystick->axes[axis].zero && value <= joystick->axes[axis].value)) {
867  return 0;
868  }
869  }
870 
871  /* Update internal joystick state */
872  joystick->axes[axis].value = value;
873 
874  /* Post the event, if desired */
875  posted = 0;
876 #if !SDL_EVENTS_DISABLED
879  event.type = SDL_JOYAXISMOTION;
880  event.jaxis.which = joystick->instance_id;
881  event.jaxis.axis = axis;
882  event.jaxis.value = value;
883  posted = SDL_PushEvent(&event) == 1;
884  }
885 #endif /* !SDL_EVENTS_DISABLED */
886  return posted;
887 }
#define SDL_abs
#define SDL_ENABLE
Definition: SDL_events.h:759
SDL_Texture * axis
int SDL_PrivateJoystickAxis(SDL_Joystick *joystick, Uint8 axis, Sint16 value)
Definition: SDL_joystick.c:833
#define SDL_JOYSTICK_AXIS_MAX
Definition: SDL_joystick.h:301
#define SDL_GetEventState(type)
Definition: SDL_events.h:772
struct _cl_event * event
#define SDL_PushEvent
GLsizei const GLfloat * value
static SDL_bool SDL_PrivateJoystickShouldIgnoreEvent()
Definition: SDL_joystick.c:740
General event structure.
Definition: SDL_events.h:557

◆ SDL_PrivateJoystickBall()

int SDL_PrivateJoystickBall ( SDL_Joystick *  joystick,
Uint8  ball,
Sint16  xrel,
Sint16  yrel 
)

Definition at line 930 of file SDL_joystick.c.

References SDL_ENABLE, SDL_GetEventState, SDL_JOYBALLMOTION, SDL_PrivateJoystickShouldIgnoreEvent(), and SDL_PushEvent.

932 {
933  int posted;
934 
935  /* Make sure we're not getting garbage events */
936  if (ball >= joystick->nballs) {
937  return 0;
938  }
939 
940  /* We ignore events if we don't have keyboard focus. */
942  return 0;
943  }
944 
945  /* Update internal mouse state */
946  joystick->balls[ball].dx += xrel;
947  joystick->balls[ball].dy += yrel;
948 
949  /* Post the event, if desired */
950  posted = 0;
951 #if !SDL_EVENTS_DISABLED
954  event.jball.type = SDL_JOYBALLMOTION;
955  event.jball.which = joystick->instance_id;
956  event.jball.ball = ball;
957  event.jball.xrel = xrel;
958  event.jball.yrel = yrel;
959  posted = SDL_PushEvent(&event) == 1;
960  }
961 #endif /* !SDL_EVENTS_DISABLED */
962  return posted;
963 }
#define SDL_ENABLE
Definition: SDL_events.h:759
#define SDL_GetEventState(type)
Definition: SDL_events.h:772
struct _cl_event * event
#define SDL_PushEvent
static SDL_bool SDL_PrivateJoystickShouldIgnoreEvent()
Definition: SDL_joystick.c:740
General event structure.
Definition: SDL_events.h:557

◆ SDL_PrivateJoystickBatteryLevel()

void SDL_PrivateJoystickBatteryLevel ( SDL_Joystick *  joystick,
SDL_JoystickPowerLevel  ePowerLevel 
)

Definition at line 1696 of file SDL_joystick.c.

1697 {
1698  joystick->epowerlevel = ePowerLevel;
1699 }

◆ SDL_PrivateJoystickButton()

int SDL_PrivateJoystickButton ( SDL_Joystick *  joystick,
Uint8  button,
Uint8  state 
)

Definition at line 966 of file SDL_joystick.c.

References button, SDL_ENABLE, SDL_GetEventState, SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP, SDL_PRESSED, SDL_PrivateJoystickShouldIgnoreEvent(), SDL_PushEvent, SDL_RELEASED, state, and SDL_Event::type.

Referenced by IOS_MFIJoystickUpdate(), and SDL_JoystickUpdate().

967 {
968  int posted;
969 #if !SDL_EVENTS_DISABLED
971 
972  switch (state) {
973  case SDL_PRESSED:
974  event.type = SDL_JOYBUTTONDOWN;
975  break;
976  case SDL_RELEASED:
977  event.type = SDL_JOYBUTTONUP;
978  break;
979  default:
980  /* Invalid state -- bail */
981  return 0;
982  }
983 #endif /* !SDL_EVENTS_DISABLED */
984 
985  /* Make sure we're not getting garbage or duplicate events */
986  if (button >= joystick->nbuttons) {
987  return 0;
988  }
989  if (state == joystick->buttons[button]) {
990  return 0;
991  }
992 
993  /* We ignore events if we don't have keyboard focus, except for button
994  * release. */
996  if (state == SDL_PRESSED) {
997  return 0;
998  }
999  }
1000 
1001  /* Update internal joystick state */
1002  joystick->buttons[button] = state;
1003 
1004  /* Post the event, if desired */
1005  posted = 0;
1006 #if !SDL_EVENTS_DISABLED
1007  if (SDL_GetEventState(event.type) == SDL_ENABLE) {
1008  event.jbutton.which = joystick->instance_id;
1009  event.jbutton.button = button;
1010  event.jbutton.state = state;
1011  posted = SDL_PushEvent(&event) == 1;
1012  }
1013 #endif /* !SDL_EVENTS_DISABLED */
1014  return posted;
1015 }
SDL_Texture * button
struct xkb_state * state
#define SDL_ENABLE
Definition: SDL_events.h:759
#define SDL_GetEventState(type)
Definition: SDL_events.h:772
struct _cl_event * event
#define SDL_PushEvent
static SDL_bool SDL_PrivateJoystickShouldIgnoreEvent()
Definition: SDL_joystick.c:740
General event structure.
Definition: SDL_events.h:557
#define SDL_PRESSED
Definition: SDL_events.h:50
#define SDL_RELEASED
Definition: SDL_events.h:49
Uint32 type
Definition: SDL_events.h:559

◆ SDL_PrivateJoystickHat()

int SDL_PrivateJoystickHat ( SDL_Joystick *  joystick,
Uint8  hat,
Uint8  value 
)

Definition at line 890 of file SDL_joystick.c.

References SDL_ENABLE, SDL_GetEventState, SDL_HAT_CENTERED, SDL_JOYHATMOTION, SDL_PrivateJoystickShouldIgnoreEvent(), and SDL_PushEvent.

Referenced by IOS_MFIJoystickUpdate(), and SDL_JoystickUpdate().

891 {
892  int posted;
893 
894  /* Make sure we're not getting garbage or duplicate events */
895  if (hat >= joystick->nhats) {
896  return 0;
897  }
898  if (value == joystick->hats[hat]) {
899  return 0;
900  }
901 
902  /* We ignore events if we don't have keyboard focus, except for centering
903  * events.
904  */
906  if (value != SDL_HAT_CENTERED) {
907  return 0;
908  }
909  }
910 
911  /* Update internal joystick state */
912  joystick->hats[hat] = value;
913 
914  /* Post the event, if desired */
915  posted = 0;
916 #if !SDL_EVENTS_DISABLED
919  event.jhat.type = SDL_JOYHATMOTION;
920  event.jhat.which = joystick->instance_id;
921  event.jhat.hat = hat;
922  event.jhat.value = value;
923  posted = SDL_PushEvent(&event) == 1;
924  }
925 #endif /* !SDL_EVENTS_DISABLED */
926  return posted;
927 }
#define SDL_ENABLE
Definition: SDL_events.h:759
#define SDL_GetEventState(type)
Definition: SDL_events.h:772
struct _cl_event * event
#define SDL_PushEvent
GLsizei const GLfloat * value
static SDL_bool SDL_PrivateJoystickShouldIgnoreEvent()
Definition: SDL_joystick.c:740
General event structure.
Definition: SDL_events.h:557
#define SDL_HAT_CENTERED
Definition: SDL_joystick.h:329

◆ SDL_PrivateJoystickRemoved()

void SDL_PrivateJoystickRemoved ( SDL_JoystickID  device_instance)

Definition at line 805 of file SDL_joystick.c.

References SDL_ENABLE, SDL_FALSE, SDL_GetEventState, SDL_JOYDEVICEREMOVED, SDL_joysticks, SDL_PushEvent, SDL_TRUE, SDL_Event::type, and UpdateEventsForDeviceRemoval().

Referenced by IOS_RemoveJoystickDevice().

806 {
807  SDL_Joystick *joystick;
808 
809 #if !SDL_EVENTS_DISABLED
811 
812  event.type = SDL_JOYDEVICEREMOVED;
813 
814  if (SDL_GetEventState(event.type) == SDL_ENABLE) {
815  event.jdevice.which = device_instance;
816  SDL_PushEvent(&event);
817  }
818 
820 #endif /* !SDL_EVENTS_DISABLED */
821 
822  /* Mark this joystick as no longer attached */
823  for (joystick = SDL_joysticks; joystick; joystick = joystick->next) {
824  if (joystick->instance_id == device_instance) {
825  joystick->attached = SDL_FALSE;
826  joystick->force_recentering = SDL_TRUE;
827  break;
828  }
829  }
830 }
#define SDL_ENABLE
Definition: SDL_events.h:759
static void UpdateEventsForDeviceRemoval()
Definition: SDL_joystick.c:780
#define SDL_GetEventState(type)
Definition: SDL_events.h:772
struct _cl_event * event
#define SDL_PushEvent
General event structure.
Definition: SDL_events.h:557
Uint32 type
Definition: SDL_events.h:559
static SDL_Joystick * SDL_joysticks
Definition: SDL_joystick.c:81

◆ SDL_PrivateJoystickShouldIgnoreEvent()

static SDL_bool SDL_PrivateJoystickShouldIgnoreEvent ( )
static

Definition at line 740 of file SDL_joystick.c.

References NULL, SDL_FALSE, SDL_GetKeyboardFocus, SDL_HasWindows(), SDL_joystick_allows_background_events, and SDL_TRUE.

Referenced by SDL_PrivateJoystickAxis(), SDL_PrivateJoystickBall(), SDL_PrivateJoystickButton(), and SDL_PrivateJoystickHat().

741 {
743  return SDL_FALSE;
744  }
745 
746  if (SDL_HasWindows() && SDL_GetKeyboardFocus() == NULL) {
747  /* We have windows but we don't have focus, ignore the event. */
748  return SDL_TRUE;
749  }
750  return SDL_FALSE;
751 }
#define SDL_GetKeyboardFocus
static SDL_bool SDL_joystick_allows_background_events
Definition: SDL_joystick.c:80
#define NULL
Definition: begin_code.h:167
SDL_bool SDL_HasWindows(void)
Definition: SDL_video.c:1711

◆ SDL_PrivateJoystickValid()

int SDL_PrivateJoystickValid ( SDL_Joystick *  joystick)

◆ SDL_ShouldIgnoreJoystick()

SDL_bool SDL_ShouldIgnoreJoystick ( const char *  name,
SDL_JoystickGUID  guid 
)

Definition at line 1359 of file SDL_joystick.c.

References i, MAKE_VIDPID, NULL, SDL_arraysize, SDL_FALSE, SDL_GetJoystickGUIDInfo(), SDL_IsGameControllerNameAndGUID(), SDL_IsJoystickPS4(), SDL_IsPS4RemapperRunning(), SDL_ShouldIgnoreGameController(), and SDL_TRUE.

1360 {
1361  /* This list is taken from:
1362  https://raw.githubusercontent.com/denilsonsa/udev-joystick-blacklist/master/generate_rules.py
1363  */
1364  static Uint32 joystick_blacklist[] = {
1365  /* Microsoft Microsoft Wireless Optical Desktop® 2.10 */
1366  /* Microsoft Wireless Desktop - Comfort Edition */
1367  MAKE_VIDPID(0x045e, 0x009d),
1368 
1369  /* Microsoft Microsoft® Digital Media Pro Keyboard */
1370  /* Microsoft Corp. Digital Media Pro Keyboard */
1371  MAKE_VIDPID(0x045e, 0x00b0),
1372 
1373  /* Microsoft Microsoft® Digital Media Keyboard */
1374  /* Microsoft Corp. Digital Media Keyboard 1.0A */
1375  MAKE_VIDPID(0x045e, 0x00b4),
1376 
1377  /* Microsoft Microsoft® Digital Media Keyboard 3000 */
1378  MAKE_VIDPID(0x045e, 0x0730),
1379 
1380  /* Microsoft Microsoft® 2.4GHz Transceiver v6.0 */
1381  /* Microsoft Microsoft® 2.4GHz Transceiver v8.0 */
1382  /* Microsoft Corp. Nano Transceiver v1.0 for Bluetooth */
1383  /* Microsoft Wireless Mobile Mouse 1000 */
1384  /* Microsoft Wireless Desktop 3000 */
1385  MAKE_VIDPID(0x045e, 0x0745),
1386 
1387  /* Microsoft® SideWinder(TM) 2.4GHz Transceiver */
1388  MAKE_VIDPID(0x045e, 0x0748),
1389 
1390  /* Microsoft Corp. Wired Keyboard 600 */
1391  MAKE_VIDPID(0x045e, 0x0750),
1392 
1393  /* Microsoft Corp. Sidewinder X4 keyboard */
1394  MAKE_VIDPID(0x045e, 0x0768),
1395 
1396  /* Microsoft Corp. Arc Touch Mouse Transceiver */
1397  MAKE_VIDPID(0x045e, 0x0773),
1398 
1399  /* Microsoft® 2.4GHz Transceiver v9.0 */
1400  /* Microsoft® Nano Transceiver v2.1 */
1401  /* Microsoft Sculpt Ergonomic Keyboard (5KV-00001) */
1402  MAKE_VIDPID(0x045e, 0x07a5),
1403 
1404  /* Microsoft® Nano Transceiver v1.0 */
1405  /* Microsoft Wireless Keyboard 800 */
1406  MAKE_VIDPID(0x045e, 0x07b2),
1407 
1408  /* Microsoft® Nano Transceiver v2.0 */
1409  MAKE_VIDPID(0x045e, 0x0800),
1410 
1411  MAKE_VIDPID(0x046d, 0xc30a), /* Logitech, Inc. iTouch Composite keboard */
1412 
1413  MAKE_VIDPID(0x04d9, 0xa0df), /* Tek Syndicate Mouse (E-Signal USB Gaming Mouse) */
1414 
1415  /* List of Wacom devices at: http://linuxwacom.sourceforge.net/wiki/index.php/Device_IDs */
1416  MAKE_VIDPID(0x056a, 0x0010), /* Wacom ET-0405 Graphire */
1417  MAKE_VIDPID(0x056a, 0x0011), /* Wacom ET-0405A Graphire2 (4x5) */
1418  MAKE_VIDPID(0x056a, 0x0012), /* Wacom ET-0507A Graphire2 (5x7) */
1419  MAKE_VIDPID(0x056a, 0x0013), /* Wacom CTE-430 Graphire3 (4x5) */
1420  MAKE_VIDPID(0x056a, 0x0014), /* Wacom CTE-630 Graphire3 (6x8) */
1421  MAKE_VIDPID(0x056a, 0x0015), /* Wacom CTE-440 Graphire4 (4x5) */
1422  MAKE_VIDPID(0x056a, 0x0016), /* Wacom CTE-640 Graphire4 (6x8) */
1423  MAKE_VIDPID(0x056a, 0x0017), /* Wacom CTE-450 Bamboo Fun (4x5) */
1424  MAKE_VIDPID(0x056a, 0x0018), /* Wacom CTE-650 Bamboo Fun 6x8 */
1425  MAKE_VIDPID(0x056a, 0x0019), /* Wacom CTE-631 Bamboo One */
1426  MAKE_VIDPID(0x056a, 0x00d1), /* Wacom Bamboo Pen and Touch CTH-460 */
1427  MAKE_VIDPID(0x056a, 0x030e), /* Wacom Intuos Pen (S) CTL-480 */
1428 
1429  MAKE_VIDPID(0x09da, 0x054f), /* A4 Tech Co., G7 750 mouse */
1430  MAKE_VIDPID(0x09da, 0x1410), /* A4 Tech Co., Ltd Bloody AL9 mouse */
1431  MAKE_VIDPID(0x09da, 0x3043), /* A4 Tech Co., Ltd Bloody R8A Gaming Mouse */
1432  MAKE_VIDPID(0x09da, 0x31b5), /* A4 Tech Co., Ltd Bloody TL80 Terminator Laser Gaming Mouse */
1433  MAKE_VIDPID(0x09da, 0x3997), /* A4 Tech Co., Ltd Bloody RT7 Terminator Wireless */
1434  MAKE_VIDPID(0x09da, 0x3f8b), /* A4 Tech Co., Ltd Bloody V8 mouse */
1435  MAKE_VIDPID(0x09da, 0x51f4), /* Modecom MC-5006 Keyboard */
1436  MAKE_VIDPID(0x09da, 0x5589), /* A4 Tech Co., Ltd Terminator TL9 Laser Gaming Mouse */
1437  MAKE_VIDPID(0x09da, 0x7b22), /* A4 Tech Co., Ltd Bloody V5 */
1438  MAKE_VIDPID(0x09da, 0x7f2d), /* A4 Tech Co., Ltd Bloody R3 mouse */
1439  MAKE_VIDPID(0x09da, 0x8090), /* A4 Tech Co., Ltd X-718BK Oscar Optical Gaming Mouse */
1440  MAKE_VIDPID(0x09da, 0x9033), /* A4 Tech Co., X7 X-705K */
1441  MAKE_VIDPID(0x09da, 0x9066), /* A4 Tech Co., Sharkoon Fireglider Optical */
1442  MAKE_VIDPID(0x09da, 0x9090), /* A4 Tech Co., Ltd XL-730K / XL-750BK / XL-755BK Laser Mouse */
1443  MAKE_VIDPID(0x09da, 0x90c0), /* A4 Tech Co., Ltd X7 G800V keyboard */
1444  MAKE_VIDPID(0x09da, 0xf012), /* A4 Tech Co., Ltd Bloody V7 mouse */
1445  MAKE_VIDPID(0x09da, 0xf32a), /* A4 Tech Co., Ltd Bloody B540 keyboard */
1446  MAKE_VIDPID(0x09da, 0xf613), /* A4 Tech Co., Ltd Bloody V2 mouse */
1447  MAKE_VIDPID(0x09da, 0xf624), /* A4 Tech Co., Ltd Bloody B120 Keyboard */
1448 
1449  MAKE_VIDPID(0x1b1c, 0x1b3c), /* Corsair Harpoon RGB gaming mouse */
1450 
1451  MAKE_VIDPID(0x1d57, 0xad03), /* [T3] 2.4GHz and IR Air Mouse Remote Control */
1452 
1453  MAKE_VIDPID(0x1e7d, 0x2e4a), /* Roccat Tyon Mouse */
1454 
1455  MAKE_VIDPID(0x20a0, 0x422d), /* Winkeyless.kr Keyboards */
1456 
1457  MAKE_VIDPID(0x2516, 0x001f), /* Cooler Master Storm Mizar Mouse */
1458  MAKE_VIDPID(0x2516, 0x0028), /* Cooler Master Storm Alcor Mouse */
1459  };
1460 
1461  unsigned int i;
1462  Uint32 id;
1463  Uint16 vendor;
1464  Uint16 product;
1465 
1466  SDL_GetJoystickGUIDInfo(guid, &vendor, &product, NULL);
1467 
1468  /* Check the joystick blacklist */
1469  id = MAKE_VIDPID(vendor, product);
1470  for (i = 0; i < SDL_arraysize(joystick_blacklist); ++i) {
1471  if (id == joystick_blacklist[i]) {
1472  return SDL_TRUE;
1473  }
1474  }
1475 
1476  if (SDL_IsJoystickPS4(vendor, product) && SDL_IsPS4RemapperRunning()) {
1477  return SDL_TRUE;
1478  }
1479 
1482  return SDL_TRUE;
1483  }
1484 
1485  return SDL_FALSE;
1486 }
GLuint id
#define MAKE_VIDPID(VID, PID)
SDL_bool SDL_IsJoystickPS4(Uint16 vendor, Uint16 product)
uint16_t Uint16
Definition: SDL_stdinc.h:191
GLuint const GLchar * name
static SDL_bool SDL_IsPS4RemapperRunning(void)
SDL_bool SDL_ShouldIgnoreGameController(const char *name, SDL_JoystickGUID guid)
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
SDL_bool SDL_IsGameControllerNameAndGUID(const char *name, SDL_JoystickGUID guid)
#define NULL
Definition: begin_code.h:167
void SDL_GetJoystickGUIDInfo(SDL_JoystickGUID guid, Uint16 *vendor, Uint16 *product, Uint16 *version)
uint32_t Uint32
Definition: SDL_stdinc.h:203
#define SDL_arraysize(array)
Definition: SDL_stdinc.h:115

◆ SDL_UnlockJoysticks()

◆ UpdateEventsForDeviceRemoval()

static void UpdateEventsForDeviceRemoval ( )
static

Definition at line 780 of file SDL_joystick.c.

References events, i, SDL_Event::jdevice, NULL, SDL_ADDEVENT, SDL_GETEVENT, SDL_JOYDEVICEADDED, SDL_PEEKEVENT, SDL_PeepEvents, SDL_small_alloc, SDL_small_free, and SDL_JoyDeviceEvent::which.

Referenced by SDL_PrivateJoystickRemoved().

781 {
782  int i, num_events;
783  SDL_Event *events;
784  SDL_bool isstack;
785 
787  if (num_events <= 0) {
788  return;
789  }
790 
791  events = SDL_small_alloc(SDL_Event, num_events, &isstack);
792  if (!events) {
793  return;
794  }
795 
796  num_events = SDL_PeepEvents(events, num_events, SDL_GETEVENT, SDL_JOYDEVICEADDED, SDL_JOYDEVICEADDED);
797  for (i = 0; i < num_events; ++i) {
798  --events[i].jdevice.which;
799  }
800  SDL_PeepEvents(events, num_events, SDL_ADDEVENT, 0, 0);
801 
802  SDL_small_free(events, isstack);
803 }
SDL_JoyDeviceEvent jdevice
Definition: SDL_events.h:573
static SDL_Event events[EVENT_BUF_SIZE]
Definition: testgesture.c:39
#define SDL_small_alloc(type, count, pisstack)
Definition: SDL_internal.h:39
#define SDL_PeepEvents
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:50
#define NULL
Definition: begin_code.h:167
SDL_bool
Definition: SDL_stdinc.h:161
#define SDL_small_free(ptr, isstack)
Definition: SDL_internal.h:40
General event structure.
Definition: SDL_events.h:557

Variable Documentation

◆ SDL_joystick_allows_background_events

SDL_bool SDL_joystick_allows_background_events = SDL_FALSE
static

◆ SDL_joystick_drivers

SDL_JoystickDriver* SDL_joystick_drivers[]
static

Definition at line 48 of file SDL_joystick.c.

◆ SDL_joystick_lock

SDL_mutex* SDL_joystick_lock = NULL
static

Definition at line 83 of file SDL_joystick.c.

Referenced by SDL_JoystickQuit().

◆ SDL_joysticks

◆ SDL_next_joystick_instance_id

SDL_atomic_t SDL_next_joystick_instance_id
static

Definition at line 84 of file SDL_joystick.c.

◆ SDL_updating_joystick

SDL_bool SDL_updating_joystick = SDL_FALSE
static

Definition at line 82 of file SDL_joystick.c.

Referenced by SDL_JoystickClose(), SDL_JoystickQuit(), and SDL_JoystickUpdate().