virtual joysticks: removed ball support (Bug 5028)

include/SDL_joystick.h

@@ -206,7 +206,6 @@ extern DECLSPEC SDL_Joystick *SDLCALL SDL_JoystickFromPlayerIndex(int player_ind
  */
 extern DECLSPEC int SDLCALL SDL_JoystickAttachVirtual(SDL_JoystickType type,
                                                       int naxes,
-                                                      int nballs,
                                                       int nbuttons,
                                                       int nhats);
 
@@ -226,7 +225,6 @@ extern DECLSPEC SDL_bool SDLCALL SDL_JoystickIsVirtual(int device_index);
  * Returns 0 on success, -1 on error.
  */
 extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualAxis(SDL_Joystick * joystick, int axis, Sint16 value);
-extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualBall(SDL_Joystick * joystick, int ball, Sint16 xrel, Sint16 yrel);
 extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualButton(SDL_Joystick * joystick, int button, Uint8 value);
 extern DECLSPEC int SDLCALL SDL_JoystickSetVirtualHat(SDL_Joystick * joystick, int hat, Uint8 value);
 

src/dynapi/SDL_dynapi_procs.h

@@ -809,11 +809,10 @@ SDL_DYNAPI_PROC(int,SDL_GetAndroidSDKVersion,(void),(),return)
 #endif
 SDL_DYNAPI_PROC(int,SDL_isupper,(int a),(a),return)
 SDL_DYNAPI_PROC(int,SDL_islower,(int a),(a),return)
-SDL_DYNAPI_PROC(int,SDL_JoystickAttachVirtual,(SDL_JoystickType a, int b, int c, int d, int e),(a,b,c,d,e),return)
+SDL_DYNAPI_PROC(int,SDL_JoystickAttachVirtual,(SDL_JoystickType a, int b, int c, int d),(a,b,c,d),return)
 SDL_DYNAPI_PROC(int,SDL_JoystickDetachVirtual,(int a),(a),return)
 SDL_DYNAPI_PROC(SDL_bool,SDL_JoystickIsVirtual,(int a),(a),return)
 SDL_DYNAPI_PROC(int,SDL_JoystickSetVirtualAxis,(SDL_Joystick *a, int b, Sint16 c),(a,b,c),return)
-SDL_DYNAPI_PROC(int,SDL_JoystickSetVirtualBall,(SDL_Joystick *a, int b, Sint16 c, Sint16 d),(a,b,c,d),return)
 SDL_DYNAPI_PROC(int,SDL_JoystickSetVirtualButton,(SDL_Joystick *a, int b, Uint8 c),(a,b,c),return)
 SDL_DYNAPI_PROC(int,SDL_JoystickSetVirtualHat,(SDL_Joystick *a, int b, Uint8 c),(a,b,c),return)
 SDL_DYNAPI_PROC(char*,SDL_GetErrorMsg,(char *a, int b),(a,b),return)

src/joystick/SDL_joystick.c

@@ -466,14 +466,12 @@ SDL_JoystickOpen(int device_index)
 int
 SDL_JoystickAttachVirtual(SDL_JoystickType type,
                           int naxes,
-                          int nballs,
                           int nbuttons,
                           int nhats)
 {
 #if SDL_JOYSTICK_VIRTUAL
     return SDL_JoystickAttachVirtualInner(type,
                                           naxes,
-                                          nballs,
                                           nbuttons,
                                           nhats);
 #else
@@ -539,17 +537,6 @@ SDL_JoystickSetVirtualAxis(SDL_Joystick * joystick, int axis, Sint16 value)
 }
 
 
-int
-SDL_JoystickSetVirtualBall(SDL_Joystick * joystick, int axis, Sint16 xrel, Sint16 yrel)
-{
-#if SDL_JOYSTICK_VIRTUAL
-    return SDL_JoystickSetVirtualBallInner(joystick, axis, xrel, yrel);
-#else
-    return SDL_SetError("SDL not built with virtual-joystick support");
-#endif
-}
-
-
 int
 SDL_JoystickSetVirtualButton(SDL_Joystick * joystick, int button, Uint8 value)
 {

src/joystick/virtual/SDL_sysjoystick.c

@@ -60,10 +60,6 @@ VIRTUAL_FreeHWData(joystick_hwdata *hwdata)
         SDL_free((void *)hwdata->axes);
         hwdata->axes = NULL;
     }
-    if (hwdata->balls) {
-        SDL_free((void *)hwdata->balls);
-        hwdata->balls = NULL;
-    }
     if (hwdata->buttons) {
         SDL_free((void *)hwdata->buttons);
         hwdata->buttons = NULL;
@@ -94,7 +90,6 @@ VIRTUAL_FreeHWData(joystick_hwdata *hwdata)
 int
 SDL_JoystickAttachVirtualInner(SDL_JoystickType type,
                                int naxes,
-                               int nballs,
                                int nbuttons,
                                int nhats)
 {
@@ -108,7 +103,6 @@ SDL_JoystickAttachVirtualInner(SDL_JoystickType type,
     }
 
     hwdata->naxes = naxes;
-    hwdata->nballs = nballs;
     hwdata->nbuttons = nbuttons;
     hwdata->nhats = nhats;
     hwdata->name = "Virtual Joystick";
@@ -125,13 +119,6 @@ SDL_JoystickAttachVirtualInner(SDL_JoystickType type,
             return SDL_OutOfMemory();
         }
     }
-    if (nballs > 0) {
-        hwdata->balls = SDL_calloc(nballs, sizeof(hwdata->balls[0]));
-        if (!hwdata->balls) {
-            VIRTUAL_FreeHWData(hwdata);
-            return SDL_OutOfMemory();
-        }
-    }
     if (nbuttons > 0) {
         hwdata->buttons = SDL_calloc(nbuttons, sizeof(Uint8));
         if (!hwdata->buttons) {
@@ -201,32 +188,6 @@ SDL_JoystickSetVirtualAxisInner(SDL_Joystick * joystick, int axis, Sint16 value)
 }
 
 
-int
-SDL_JoystickSetVirtualBallInner(SDL_Joystick * joystick, int ball, Sint16 xrel, Sint16 yrel)
-{
-    joystick_hwdata *hwdata;
-
-    SDL_LockJoysticks();
-
-    if (!joystick || !joystick->hwdata) {
-        SDL_UnlockJoysticks();
-        return SDL_SetError("Invalid joystick");
-    }
-
-    hwdata = (joystick_hwdata *)joystick->hwdata;
-    if (ball < 0 || ball >= hwdata->nbuttons) {
-        SDL_UnlockJoysticks();
-        return SDL_SetError("Invalid ball index");
-    }
-
-    hwdata->balls[ball].xrel = xrel;
-    hwdata->balls[ball].yrel = yrel;
-
-    SDL_UnlockJoysticks();
-    return 0;
-}
-
-
 int
 SDL_JoystickSetVirtualButtonInner(SDL_Joystick * joystick, int button, Uint8 value)
 {
@@ -364,7 +325,6 @@ VIRTUAL_JoystickOpen(SDL_Joystick * joystick, int device_index)
     joystick->instance_id = hwdata->instance_id;
     joystick->hwdata = hwdata;
     joystick->naxes = hwdata->naxes;
-    joystick->nballs = hwdata->nballs;
     joystick->nbuttons = hwdata->nbuttons;
     joystick->nhats = hwdata->nhats;
     hwdata->opened = SDL_TRUE;
@@ -396,9 +356,6 @@ VIRTUAL_JoystickUpdate(SDL_Joystick * joystick)
     for (int i = 0; i < hwdata->naxes; ++i) {
         SDL_PrivateJoystickAxis(joystick, i, hwdata->axes[i]);
     }
-    for (int i = 0; i < hwdata->nballs; ++i) {
-        SDL_PrivateJoystickBall(joystick, i, hwdata->balls[i].xrel, hwdata->balls[i].yrel);
-    }
     for (int i = 0; i < hwdata->nbuttons; ++i) {
         SDL_PrivateJoystickButton(joystick, i, hwdata->buttons[i]);
     }

src/joystick/virtual/SDL_sysjoystick_c.h

@@ -38,11 +38,6 @@ typedef struct joystick_hwdata
     SDL_JoystickGUID guid;
     int naxes;
     Sint16 *axes;
-    int nballs;
-    struct {
-        Sint16 xrel;
-        Sint16 yrel;
-    } *balls;
     int nbuttons;
     Uint8 *buttons;
     int nhats;
@@ -54,14 +49,12 @@ typedef struct joystick_hwdata
 
 int SDL_JoystickAttachVirtualInner(SDL_JoystickType type,
                                    int naxes,
-                                   int nballs,
                                    int nbuttons,
                                    int nhats);
 
 int SDL_JoystickDetachVirtualInner(int device_index);
 
 int SDL_JoystickSetVirtualAxisInner(SDL_Joystick * joystick, int axis, Sint16 value);
-int SDL_JoystickSetVirtualBallInner(SDL_Joystick * joystick, int ball, Sint16 xrel, Sint16 yrel);
 int SDL_JoystickSetVirtualButtonInner(SDL_Joystick * joystick, int button, Uint8 value);
 int SDL_JoystickSetVirtualHatInner(SDL_Joystick * joystick, int hat, Uint8 value);