Started to merge @ZobyTwo cmake branch

thirdparty/SDL/src/joystick/SDL_joystick.c

@@ -0,0 +1,586 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+/* This is the joystick API for Simple DirectMedia Layer */
+
+#include "SDL_events.h"
+#include "SDL_sysjoystick.h"
+#include "SDL_joystick_c.h"
+#if !SDL_EVENTS_DISABLED
+#include "../events/SDL_events_c.h"
+#endif
+
+Uint8 SDL_numjoysticks = 0;
+SDL_Joystick **SDL_joysticks = NULL;
+static SDL_Joystick *default_joystick = NULL;
+
+int
+SDL_JoystickInit(void)
+{
+    int arraylen;
+    int status;
+
+    SDL_numjoysticks = 0;
+    status = SDL_SYS_JoystickInit();
+    if (status >= 0) {
+        arraylen = (status + 1) * sizeof(*SDL_joysticks);
+        SDL_joysticks = (SDL_Joystick **) SDL_malloc(arraylen);
+        if (SDL_joysticks == NULL) {
+            SDL_numjoysticks = 0;
+        } else {
+            SDL_memset(SDL_joysticks, 0, arraylen);
+            SDL_numjoysticks = status;
+        }
+        status = 0;
+    }
+    default_joystick = NULL;
+    return (status);
+}
+
+/*
+ * Count the number of joysticks attached to the system
+ */
+int
+SDL_NumJoysticks(void)
+{
+    return SDL_numjoysticks;
+}
+
+/*
+ * Get the implementation dependent name of a joystick
+ */
+const char *
+SDL_JoystickName(int device_index)
+{
+    if ((device_index < 0) || (device_index >= SDL_numjoysticks)) {
+        SDL_SetError("There are %d joysticks available", SDL_numjoysticks);
+        return (NULL);
+    }
+    return (SDL_SYS_JoystickName(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 the value which will
+ * identify this joystick in future joystick events.
+ *
+ * This function returns a joystick identifier, or NULL if an error occurred.
+ */
+SDL_Joystick *
+SDL_JoystickOpen(int device_index)
+{
+    int i;
+    SDL_Joystick *joystick;
+
+    if ((device_index < 0) || (device_index >= SDL_numjoysticks)) {
+        SDL_SetError("There are %d joysticks available", SDL_numjoysticks);
+        return (NULL);
+    }
+
+    /* If the joystick is already open, return it */
+    for (i = 0; SDL_joysticks[i]; ++i) {
+        if (device_index == SDL_joysticks[i]->index) {
+            joystick = SDL_joysticks[i];
+            ++joystick->ref_count;
+            return (joystick);
+        }
+    }
+
+    /* Create and initialize the joystick */
+    joystick = (SDL_Joystick *) SDL_malloc((sizeof *joystick));
+    if (joystick == NULL) {
+        SDL_OutOfMemory();
+        return NULL;
+    }
+
+    SDL_memset(joystick, 0, (sizeof *joystick));
+    joystick->index = device_index;
+    if (SDL_SYS_JoystickOpen(joystick) < 0) {
+        SDL_free(joystick);
+        return NULL;
+    }
+    if (joystick->naxes > 0) {
+        joystick->axes = (Sint16 *) SDL_malloc
+            (joystick->naxes * sizeof(Sint16));
+    }
+    if (joystick->nhats > 0) {
+        joystick->hats = (Uint8 *) SDL_malloc
+            (joystick->nhats * sizeof(Uint8));
+    }
+    if (joystick->nballs > 0) {
+        joystick->balls = (struct balldelta *) SDL_malloc
+            (joystick->nballs * sizeof(*joystick->balls));
+    }
+    if (joystick->nbuttons > 0) {
+        joystick->buttons = (Uint8 *) SDL_malloc
+            (joystick->nbuttons * sizeof(Uint8));
+    }
+    if (((joystick->naxes > 0) && !joystick->axes)
+        || ((joystick->nhats > 0) && !joystick->hats)
+        || ((joystick->nballs > 0) && !joystick->balls)
+        || ((joystick->nbuttons > 0) && !joystick->buttons)) {
+        SDL_OutOfMemory();
+        SDL_JoystickClose(joystick);
+        return NULL;
+    }
+    if (joystick->axes) {
+        SDL_memset(joystick->axes, 0, joystick->naxes * sizeof(Sint16));
+    }
+    if (joystick->hats) {
+        SDL_memset(joystick->hats, 0, joystick->nhats * sizeof(Uint8));
+    }
+    if (joystick->balls) {
+        SDL_memset(joystick->balls, 0,
+            joystick->nballs * sizeof(*joystick->balls));
+    }
+    if (joystick->buttons) {
+        SDL_memset(joystick->buttons, 0, joystick->nbuttons * sizeof(Uint8));
+    }
+
+    /* Add joystick to list */
+    ++joystick->ref_count;
+    for (i = 0; SDL_joysticks[i]; ++i)
+        /* Skip to next joystick */ ;
+    SDL_joysticks[i] = joystick;
+
+    return (joystick);
+}
+
+/*
+ * Returns 1 if the joystick has been opened, or 0 if it has not.
+ */
+int
+SDL_JoystickOpened(int device_index)
+{
+    int i, opened;
+
+    opened = 0;
+    for (i = 0; SDL_joysticks[i]; ++i) {
+        if (SDL_joysticks[i]->index == (Uint8) device_index) {
+            opened = 1;
+            break;
+        }
+    }
+    return (opened);
+}
+
+
+/*
+ * Checks to make sure the joystick is valid.
+ */
+int
+SDL_PrivateJoystickValid(SDL_Joystick ** joystick)
+{
+    int valid;
+
+    if (*joystick == NULL) {
+        *joystick = default_joystick;
+    }
+    if (*joystick == NULL) {
+        SDL_SetError("Joystick hasn't been opened yet");
+        valid = 0;
+    } else {
+        valid = 1;
+    }
+    return valid;
+}
+
+/*
+ * Get the device index of an opened joystick.
+ */
+int
+SDL_JoystickIndex(SDL_Joystick * joystick)
+{
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (-1);
+    }
+    return (joystick->index);
+}
+
+/*
+ * Get the number of multi-dimensional axis controls on a joystick
+ */
+int
+SDL_JoystickNumAxes(SDL_Joystick * joystick)
+{
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (-1);
+    }
+    return (joystick->naxes);
+}
+
+/*
+ * Get the number of hats on a joystick
+ */
+int
+SDL_JoystickNumHats(SDL_Joystick * joystick)
+{
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (-1);
+    }
+    return (joystick->nhats);
+}
+
+/*
+ * Get the number of trackballs on a joystick
+ */
+int
+SDL_JoystickNumBalls(SDL_Joystick * joystick)
+{
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (-1);
+    }
+    return (joystick->nballs);
+}
+
+/*
+ * Get the number of buttons on a joystick
+ */
+int
+SDL_JoystickNumButtons(SDL_Joystick * joystick)
+{
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (-1);
+    }
+    return (joystick->nbuttons);
+}
+
+/*
+ * Get the current state of an axis control on a joystick
+ */
+Sint16
+SDL_JoystickGetAxis(SDL_Joystick * joystick, int axis)
+{
+    Sint16 state;
+
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (0);
+    }
+    if (axis < joystick->naxes) {
+        state = joystick->axes[axis];
+    } else {
+        SDL_SetError("Joystick only has %d axes", joystick->naxes);
+        state = 0;
+    }
+    return (state);
+}
+
+/*
+ * Get the current state of a hat on a joystick
+ */
+Uint8
+SDL_JoystickGetHat(SDL_Joystick * joystick, int hat)
+{
+    Uint8 state;
+
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (0);
+    }
+    if (hat < joystick->nhats) {
+        state = joystick->hats[hat];
+    } else {
+        SDL_SetError("Joystick only has %d hats", joystick->nhats);
+        state = 0;
+    }
+    return (state);
+}
+
+/*
+ * Get the ball axis change since the last poll
+ */
+int
+SDL_JoystickGetBall(SDL_Joystick * joystick, int ball, int *dx, int *dy)
+{
+    int retval;
+
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (-1);
+    }
+
+    retval = 0;
+    if (ball < joystick->nballs) {
+        if (dx) {
+            *dx = joystick->balls[ball].dx;
+        }
+        if (dy) {
+            *dy = joystick->balls[ball].dy;
+        }
+        joystick->balls[ball].dx = 0;
+        joystick->balls[ball].dy = 0;
+    } else {
+        SDL_SetError("Joystick only has %d balls", joystick->nballs);
+        retval = -1;
+    }
+    return (retval);
+}
+
+/*
+ * Get the current state of a button on a joystick
+ */
+Uint8
+SDL_JoystickGetButton(SDL_Joystick * joystick, int button)
+{
+    Uint8 state;
+
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return (0);
+    }
+    if (button < joystick->nbuttons) {
+        state = joystick->buttons[button];
+    } else {
+        SDL_SetError("Joystick only has %d buttons", joystick->nbuttons);
+        state = 0;
+    }
+    return (state);
+}
+
+/*
+ * Close a joystick previously opened with SDL_JoystickOpen()
+ */
+void
+SDL_JoystickClose(SDL_Joystick * joystick)
+{
+    int i;
+
+    if (!SDL_PrivateJoystickValid(&joystick)) {
+        return;
+    }
+
+    /* First decrement ref count */
+    if (--joystick->ref_count > 0) {
+        return;
+    }
+
+    if (joystick == default_joystick) {
+        default_joystick = NULL;
+    }
+    SDL_SYS_JoystickClose(joystick);
+
+    /* Remove joystick from list */
+    for (i = 0; SDL_joysticks[i]; ++i) {
+        if (joystick == SDL_joysticks[i]) {
+            SDL_memmove(&SDL_joysticks[i], &SDL_joysticks[i + 1],
+                        (SDL_numjoysticks - i) * sizeof(joystick));
+            break;
+        }
+    }
+
+    /* Free the data associated with this joystick */
+    if (joystick->axes) {
+        SDL_free(joystick->axes);
+    }
+    if (joystick->hats) {
+        SDL_free(joystick->hats);
+    }
+    if (joystick->balls) {
+        SDL_free(joystick->balls);
+    }
+    if (joystick->buttons) {
+        SDL_free(joystick->buttons);
+    }
+    SDL_free(joystick);
+}
+
+void
+SDL_JoystickQuit(void)
+{
+    /* Stop the event polling */
+    SDL_numjoysticks = 0;
+
+    /* Quit the joystick setup */
+    SDL_SYS_JoystickQuit();
+    if (SDL_joysticks) {
+        SDL_free(SDL_joysticks);
+        SDL_joysticks = NULL;
+    }
+}
+
+
+/* These are global for SDL_sysjoystick.c and SDL_events.c */
+
+int
+SDL_PrivateJoystickAxis(SDL_Joystick * joystick, Uint8 axis, Sint16 value)
+{
+    int posted;
+
+    /* Update internal joystick state */
+    joystick->axes[axis] = value;
+
+    /* Post the event, if desired */
+    posted = 0;
+#if !SDL_EVENTS_DISABLED
+    if (SDL_GetEventState(SDL_JOYAXISMOTION) == SDL_ENABLE) {
+        SDL_Event event;
+        event.type = SDL_JOYAXISMOTION;
+        event.jaxis.which = joystick->index;
+        event.jaxis.axis = axis;
+        event.jaxis.value = value;
+        if ((SDL_EventOK == NULL)
+            || (*SDL_EventOK) (SDL_EventOKParam, &event)) {
+            posted = 1;
+            SDL_PushEvent(&event);
+        }
+    }
+#endif /* !SDL_EVENTS_DISABLED */
+    return (posted);
+}
+
+int
+SDL_PrivateJoystickHat(SDL_Joystick * joystick, Uint8 hat, Uint8 value)
+{
+    int posted;
+
+    /* Update internal joystick state */
+    joystick->hats[hat] = value;
+
+    /* Post the event, if desired */
+    posted = 0;
+#if !SDL_EVENTS_DISABLED
+    if (SDL_GetEventState(SDL_JOYHATMOTION) == SDL_ENABLE) {
+        SDL_Event event;
+        event.jhat.type = SDL_JOYHATMOTION;
+        event.jhat.which = joystick->index;
+        event.jhat.hat = hat;
+        event.jhat.value = value;
+        if ((SDL_EventOK == NULL)
+            || (*SDL_EventOK) (SDL_EventOKParam, &event)) {
+            posted = 1;
+            SDL_PushEvent(&event);
+        }
+    }
+#endif /* !SDL_EVENTS_DISABLED */
+    return (posted);
+}
+
+int
+SDL_PrivateJoystickBall(SDL_Joystick * joystick, Uint8 ball,
+                        Sint16 xrel, Sint16 yrel)
+{
+    int posted;
+
+    /* Update internal mouse state */
+    joystick->balls[ball].dx += xrel;
+    joystick->balls[ball].dy += yrel;
+
+    /* Post the event, if desired */
+    posted = 0;
+#if !SDL_EVENTS_DISABLED
+    if (SDL_GetEventState(SDL_JOYBALLMOTION) == SDL_ENABLE) {
+        SDL_Event event;
+        event.jball.type = SDL_JOYBALLMOTION;
+        event.jball.which = joystick->index;
+        event.jball.ball = ball;
+        event.jball.xrel = xrel;
+        event.jball.yrel = yrel;
+        if ((SDL_EventOK == NULL)
+            || (*SDL_EventOK) (SDL_EventOKParam, &event)) {
+            posted = 1;
+            SDL_PushEvent(&event);
+        }
+    }
+#endif /* !SDL_EVENTS_DISABLED */
+    return (posted);
+}
+
+int
+SDL_PrivateJoystickButton(SDL_Joystick * joystick, Uint8 button, Uint8 state)
+{
+    int posted;
+#if !SDL_EVENTS_DISABLED
+    SDL_Event event;
+
+    switch (state) {
+    case SDL_PRESSED:
+        event.type = SDL_JOYBUTTONDOWN;
+        break;
+    case SDL_RELEASED:
+        event.type = SDL_JOYBUTTONUP;
+        break;
+    default:
+        /* Invalid state -- bail */
+        return (0);
+    }
+#endif /* !SDL_EVENTS_DISABLED */
+
+    /* Update internal joystick state */
+    joystick->buttons[button] = state;
+
+    /* Post the event, if desired */
+    posted = 0;
+#if !SDL_EVENTS_DISABLED
+    if (SDL_GetEventState(event.type) == SDL_ENABLE) {
+        event.jbutton.which = joystick->index;
+        event.jbutton.button = button;
+        event.jbutton.state = state;
+        if ((SDL_EventOK == NULL)
+            || (*SDL_EventOK) (SDL_EventOKParam, &event)) {
+            posted = 1;
+            SDL_PushEvent(&event);
+        }
+    }
+#endif /* !SDL_EVENTS_DISABLED */
+    return (posted);
+}
+
+void
+SDL_JoystickUpdate(void)
+{
+    int i;
+
+    for (i = 0; SDL_joysticks[i]; ++i) {
+        SDL_SYS_JoystickUpdate(SDL_joysticks[i]);
+    }
+}
+
+int
+SDL_JoystickEventState(int state)
+{
+#if SDL_EVENTS_DISABLED
+    return SDL_IGNORE;
+#else
+    const Uint32 event_list[] = {
+        SDL_JOYAXISMOTION, SDL_JOYBALLMOTION, SDL_JOYHATMOTION,
+        SDL_JOYBUTTONDOWN, SDL_JOYBUTTONUP,
+    };
+    unsigned int i;
+
+    switch (state) {
+    case SDL_QUERY:
+        state = SDL_IGNORE;
+        for (i = 0; i < SDL_arraysize(event_list); ++i) {
+            state = SDL_EventState(event_list[i], SDL_QUERY);
+            if (state == SDL_ENABLE) {
+                break;
+            }
+        }
+        break;
+    default:
+        for (i = 0; i < SDL_arraysize(event_list); ++i) {
+            SDL_EventState(event_list[i], state);
+        }
+        break;
+    }
+    return (state);
+#endif /* SDL_EVENTS_DISABLED */
+}
+
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/SDL_joystick_c.h

@@ -0,0 +1,46 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+/* Useful functions and variables from SDL_joystick.c */
+#include "SDL_joystick.h"
+
+/* The number of available joysticks on the system */
+extern Uint8 SDL_numjoysticks;
+
+/* Initialization and shutdown functions */
+extern int SDL_JoystickInit(void);
+extern void SDL_JoystickQuit(void);
+
+/* Internal event queueing functions */
+extern int SDL_PrivateJoystickAxis(SDL_Joystick * joystick,
+                                   Uint8 axis, Sint16 value);
+extern int SDL_PrivateJoystickBall(SDL_Joystick * joystick,
+                                   Uint8 ball, Sint16 xrel, Sint16 yrel);
+extern int SDL_PrivateJoystickHat(SDL_Joystick * joystick,
+                                  Uint8 hat, Uint8 value);
+extern int SDL_PrivateJoystickButton(SDL_Joystick * joystick,
+                                     Uint8 button, Uint8 state);
+
+/* Internal sanity checking functions */
+extern int SDL_PrivateJoystickValid(SDL_Joystick ** joystick);
+
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/SDL_sysjoystick.h

@@ -0,0 +1,84 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+/* This is the system specific header for the SDL joystick API */
+
+#include "SDL_joystick.h"
+
+/* The SDL joystick structure */
+struct _SDL_Joystick
+{
+    Uint8 index;                /* Device index */
+    const char *name;           /* Joystick name - system dependent */
+
+    int naxes;                  /* Number of axis controls on the joystick */
+    Sint16 *axes;               /* Current axis states */
+
+    int nhats;                  /* Number of hats on the joystick */
+    Uint8 *hats;                /* Current hat states */
+
+    int nballs;                 /* Number of trackballs on the joystick */
+    struct balldelta
+    {
+        int dx;
+        int dy;
+    } *balls;                   /* Current ball motion deltas */
+
+    int nbuttons;               /* Number of buttons on the joystick */
+    Uint8 *buttons;             /* Current button states */
+
+    struct joystick_hwdata *hwdata;     /* Driver dependent information */
+
+    int ref_count;              /* Reference count for multiple opens */
+};
+
+/* Function to scan the system for joysticks.
+ * Joystick 0 should be the system default joystick.
+ * This function should return the number of available joysticks, or -1
+ * on an unrecoverable fatal error.
+ */
+extern int SDL_SYS_JoystickInit(void);
+
+/* Function to get the device-dependent name of a joystick */
+extern const char *SDL_SYS_JoystickName(int index);
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+extern int SDL_SYS_JoystickOpen(SDL_Joystick * joystick);
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+extern void SDL_SYS_JoystickUpdate(SDL_Joystick * joystick);
+
+/* Function to close a joystick after use */
+extern void SDL_SYS_JoystickClose(SDL_Joystick * joystick);
+
+/* Function to perform any system-specific joystick related cleanup */
+extern void SDL_SYS_JoystickQuit(void);
+
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/android/SDL_sysjoystick.c

@@ -0,0 +1,112 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_ANDROID
+
+/* This is the system specific header for the SDL joystick API */
+#include <stdio.h>              /* For the definition of NULL */
+
+#include "SDL_error.h"
+#include "SDL_events.h"
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+#include "../../core/android/SDL_android.h"
+
+static const char *accelerometerName = "Android accelerometer";
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks.  Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+int
+SDL_SYS_JoystickInit(void)
+{
+    SDL_numjoysticks = 1;
+    
+    return (1);
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *
+SDL_SYS_JoystickName(int index)
+{
+    if (index == 0) {
+        return accelerometerName;
+    } else {
+        SDL_SetError("No joystick available with that index");
+        return (NULL);
+    }
+}
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+int
+SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
+{
+    joystick->nbuttons = 0;
+    joystick->nhats = 0;
+    joystick->nballs = 0;
+    joystick->naxes = 3;
+    joystick->name = accelerometerName;
+    return 0;
+}
+
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+{
+    int i;
+    float values[3];
+
+    Android_JNI_GetAccelerometerValues(values);
+
+    for ( i = 0; i < 3; i++ ) {
+        SDL_PrivateJoystickAxis(joystick, i, values[i]);
+    }
+}
+
+/* Function to close a joystick after use */
+void
+SDL_SYS_JoystickClose(SDL_Joystick * joystick)
+{
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void
+SDL_SYS_JoystickQuit(void)
+{
+}
+
+#endif /* SDL_JOYSTICK_NDS */
+
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/beos/SDL_bejoystick.cc

@@ -0,0 +1,239 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_BEOS
+
+/* This is the system specific header for the SDL joystick API */
+
+#include <be/support/String.h>
+#include <be/device/Joystick.h>
+
+extern "C"
+{
+
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+
+
+/* The maximum number of joysticks we'll detect */
+#define MAX_JOYSTICKS	16
+
+/* A list of available joysticks */
+    static char *SDL_joyport[MAX_JOYSTICKS];
+    static char *SDL_joyname[MAX_JOYSTICKS];
+
+/* The private structure used to keep track of a joystick */
+    struct joystick_hwdata
+    {
+        BJoystick *stick;
+        uint8 *new_hats;
+        int16 *new_axes;
+    };
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks.  Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+    int SDL_SYS_JoystickInit(void)
+    {
+        BJoystick joystick;
+        int numjoysticks;
+        int i;
+        int32 nports;
+        char name[B_OS_NAME_LENGTH];
+
+        /* Search for attached joysticks */
+          nports = joystick.CountDevices();
+          numjoysticks = 0;
+          SDL_memset(SDL_joyport, 0, (sizeof SDL_joyport));
+          SDL_memset(SDL_joyname, 0, (sizeof SDL_joyname));
+        for (i = 0; (SDL_numjoysticks < MAX_JOYSTICKS) && (i < nports); ++i)
+        {
+            if (joystick.GetDeviceName(i, name) == B_OK) {
+                if (joystick.Open(name) != B_ERROR) {
+                    BString stick_name;
+                      joystick.GetControllerName(&stick_name);
+                      SDL_joyport[numjoysticks] = strdup(name);
+                      SDL_joyname[numjoysticks] = strdup(stick_name.String());
+                      numjoysticks++;
+                      joystick.Close();
+                }
+            }
+        }
+        return (numjoysticks);
+    }
+
+/* Function to get the device-dependent name of a joystick */
+    const char *SDL_SYS_JoystickName(int index)
+    {
+        return SDL_joyname[index];
+    }
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+    int SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
+    {
+        BJoystick *stick;
+
+        /* Create the joystick data structure */
+        joystick->hwdata = (struct joystick_hwdata *)
+            SDL_malloc(sizeof(*joystick->hwdata));
+        if (joystick->hwdata == NULL) {
+            SDL_OutOfMemory();
+            return (-1);
+        }
+        SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata));
+        stick = new BJoystick;
+        joystick->hwdata->stick = stick;
+
+        /* Open the requested joystick for use */
+        if (stick->Open(SDL_joyport[joystick->index]) == B_ERROR) {
+            SDL_SetError("Unable to open joystick");
+            SDL_SYS_JoystickClose(joystick);
+            return (-1);
+        }
+
+        /* Set the joystick to calibrated mode */
+        stick->EnableCalibration();
+
+        /* Get the number of buttons, hats, and axes on the joystick */
+        joystick->nbuttons = stick->CountButtons();
+        joystick->naxes = stick->CountAxes();
+        joystick->nhats = stick->CountHats();
+
+        joystick->hwdata->new_axes = (int16 *)
+            SDL_malloc(joystick->naxes * sizeof(int16));
+        joystick->hwdata->new_hats = (uint8 *)
+            SDL_malloc(joystick->nhats * sizeof(uint8));
+        if (!joystick->hwdata->new_hats || !joystick->hwdata->new_axes) {
+            SDL_OutOfMemory();
+            SDL_SYS_JoystickClose(joystick);
+            return (-1);
+        }
+
+        /* We're done! */
+        return (0);
+    }
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+    void SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+    {
+        static const Uint8 hat_map[9] = {
+            SDL_HAT_CENTERED,
+            SDL_HAT_UP,
+            SDL_HAT_RIGHTUP,
+            SDL_HAT_RIGHT,
+            SDL_HAT_RIGHTDOWN,
+            SDL_HAT_DOWN,
+            SDL_HAT_LEFTDOWN,
+            SDL_HAT_LEFT,
+            SDL_HAT_LEFTUP
+        };
+        const int JITTER = (32768 / 10);        /* 10% jitter threshold (ok?) */
+
+        BJoystick *stick;
+        int i, change;
+        int16 *axes;
+        uint8 *hats;
+        uint32 buttons;
+
+        /* Set up data pointers */
+        stick = joystick->hwdata->stick;
+        axes = joystick->hwdata->new_axes;
+        hats = joystick->hwdata->new_hats;
+
+        /* Get the new joystick state */
+        stick->Update();
+        stick->GetAxisValues(axes);
+        stick->GetHatValues(hats);
+        buttons = stick->ButtonValues();
+
+        /* Generate axis motion events */
+        for (i = 0; i < joystick->naxes; ++i) {
+            change = ((int32) axes[i] - joystick->axes[i]);
+            if ((change > JITTER) || (change < -JITTER)) {
+                SDL_PrivateJoystickAxis(joystick, i, axes[i]);
+            }
+        }
+
+        /* Generate hat change events */
+        for (i = 0; i < joystick->nhats; ++i) {
+            if (hats[i] != joystick->hats[i]) {
+                SDL_PrivateJoystickHat(joystick, i, hat_map[hats[i]]);
+            }
+        }
+
+        /* Generate button events */
+        for (i = 0; i < joystick->nbuttons; ++i) {
+            if ((buttons & 0x01) != joystick->buttons[i]) {
+                SDL_PrivateJoystickButton(joystick, i, (buttons & 0x01));
+            }
+            buttons >>= 1;
+        }
+    }
+
+/* Function to close a joystick after use */
+    void SDL_SYS_JoystickClose(SDL_Joystick * joystick)
+    {
+        if (joystick->hwdata) {
+            joystick->hwdata->stick->Close();
+            delete joystick->hwdata->stick;
+            if (joystick->hwdata->new_hats) {
+                SDL_free(joystick->hwdata->new_hats);
+            }
+            if (joystick->hwdata->new_axes) {
+                SDL_free(joystick->hwdata->new_axes);
+            }
+            SDL_free(joystick->hwdata);
+            joystick->hwdata = NULL;
+        }
+    }
+
+/* Function to perform any system-specific joystick related cleanup */
+    void SDL_SYS_JoystickQuit(void)
+    {
+        int i;
+
+        for (i = 0; SDL_joyport[i]; ++i) {
+            SDL_free(SDL_joyport[i]);
+        }
+        SDL_joyport[0] = NULL;
+
+        for (i = 0; SDL_joyname[i]; ++i) {
+            SDL_free(SDL_joyname[i]);
+        }
+        SDL_joyname[0] = NULL;
+    }
+
+};                              // extern "C"
+
+#endif /* SDL_JOYSTICK_BEOS */
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/bsd/SDL_sysjoystick.c

@@ -0,0 +1,612 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_USBHID
+
+/*
+ * Joystick driver for the uhid(4) interface found in OpenBSD,
+ * NetBSD and FreeBSD.
+ *
+ * Maintainer: <vedge at csoft.org>
+ */
+
+#include <sys/param.h>
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#ifndef __FreeBSD_kernel_version
+#define __FreeBSD_kernel_version __FreeBSD_version
+#endif
+
+#if defined(HAVE_USB_H)
+#include <usb.h>
+#endif
+#ifdef __DragonFly__
+#include <bus/usb/usb.h>
+#include <bus/usb/usbhid.h>
+#else
+#include <dev/usb/usb.h>
+#include <dev/usb/usbhid.h>
+#endif
+
+#if defined(HAVE_USBHID_H)
+#include <usbhid.h>
+#elif defined(HAVE_LIBUSB_H)
+#include <libusb.h>
+#elif defined(HAVE_LIBUSBHID_H)
+#include <libusbhid.h>
+#endif
+
+#if defined(__FREEBSD__) || defined(__FreeBSD_kernel__)
+#ifndef __DragonFly__
+#include <osreldate.h>
+#endif
+#include <sys/joystick.h>
+#endif
+
+#if SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H
+#include <machine/joystick.h>
+#endif
+
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+
+#define MAX_UHID_JOYS	4
+#define MAX_JOY_JOYS	2
+#define MAX_JOYS	(MAX_UHID_JOYS + MAX_JOY_JOYS)
+
+#if defined(__FREEBSD__) && (__FreeBSD_kernel_version > 800063) && false
+struct usb_ctl_report {
+    int     ucr_report;
+    u_char  ucr_data[1024]; /* filled data size will vary */
+};
+#endif
+
+struct report
+{
+    struct usb_ctl_report *buf; /* Buffer */
+    size_t size;                /* Buffer size */
+    int rid;                    /* Report ID */
+    enum
+    {
+        SREPORT_UNINIT,
+        SREPORT_CLEAN,
+        SREPORT_DIRTY
+    } status;
+};
+
+static struct
+{
+    int uhid_report;
+    hid_kind_t kind;
+    const char *name;
+} const repinfo[] = {
+    {UHID_INPUT_REPORT, hid_input, "input"},
+    {UHID_OUTPUT_REPORT, hid_output, "output"},
+    {UHID_FEATURE_REPORT, hid_feature, "feature"}
+};
+
+enum
+{
+    REPORT_INPUT = 0,
+    REPORT_OUTPUT = 1,
+    REPORT_FEATURE = 2
+};
+
+enum
+{
+    JOYAXE_X,
+    JOYAXE_Y,
+    JOYAXE_Z,
+    JOYAXE_SLIDER,
+    JOYAXE_WHEEL,
+    JOYAXE_RX,
+    JOYAXE_RY,
+    JOYAXE_RZ,
+    JOYAXE_count
+};
+
+struct joystick_hwdata
+{
+    int fd;
+    char *path;
+    enum
+    {
+        BSDJOY_UHID,            /* uhid(4) */
+        BSDJOY_JOY              /* joy(4) */
+    } type;
+    struct report_desc *repdesc;
+    struct report inreport;
+    int axis_map[JOYAXE_count]; /* map present JOYAXE_* to 0,1,.. */
+};
+
+static char *joynames[MAX_JOYS];
+static char *joydevnames[MAX_JOYS];
+
+static int report_alloc(struct report *, struct report_desc *, int);
+static void report_free(struct report *);
+
+#if defined(USBHID_UCR_DATA) || (defined(__FREEBSD__) && (__FreeBSD_kernel_version > 800063)) || defined(__FreeBSD_kernel__)
+#define REP_BUF_DATA(rep) ((rep)->buf->ucr_data)
+#else
+#define REP_BUF_DATA(rep) ((rep)->buf->data)
+#endif
+
+int
+SDL_SYS_JoystickInit(void)
+{
+    char s[16];
+    int i, fd;
+
+    SDL_numjoysticks = 0;
+
+    SDL_memset(joynames, 0, sizeof(joynames));
+    SDL_memset(joydevnames, 0, sizeof(joydevnames));
+
+    for (i = 0; i < MAX_UHID_JOYS; i++) {
+        SDL_Joystick nj;
+
+        SDL_snprintf(s, SDL_arraysize(s), "/dev/uhid%d", i);
+
+        nj.index = SDL_numjoysticks;
+        joynames[nj.index] = strdup(s);
+
+        if (SDL_SYS_JoystickOpen(&nj) == 0) {
+            SDL_SYS_JoystickClose(&nj);
+            SDL_numjoysticks++;
+        } else {
+            SDL_free(joynames[nj.index]);
+            joynames[nj.index] = NULL;
+        }
+    }
+    for (i = 0; i < MAX_JOY_JOYS; i++) {
+        SDL_snprintf(s, SDL_arraysize(s), "/dev/joy%d", i);
+        fd = open(s, O_RDONLY);
+        if (fd != -1) {
+            joynames[SDL_numjoysticks++] = strdup(s);
+            close(fd);
+        }
+    }
+
+    /* Read the default USB HID usage table. */
+    hid_init(NULL);
+
+    return (SDL_numjoysticks);
+}
+
+const char *
+SDL_SYS_JoystickName(int index)
+{
+    if (joydevnames[index] != NULL) {
+        return (joydevnames[index]);
+    }
+    return (joynames[index]);
+}
+
+static int
+usage_to_joyaxe(unsigned usage)
+{
+    int joyaxe;
+    switch (usage) {
+    case HUG_X:
+        joyaxe = JOYAXE_X;
+        break;
+    case HUG_Y:
+        joyaxe = JOYAXE_Y;
+        break;
+    case HUG_Z:
+        joyaxe = JOYAXE_Z;
+        break;
+    case HUG_SLIDER:
+        joyaxe = JOYAXE_SLIDER;
+        break;
+    case HUG_WHEEL:
+        joyaxe = JOYAXE_WHEEL;
+        break;
+    case HUG_RX:
+        joyaxe = JOYAXE_RX;
+        break;
+    case HUG_RY:
+        joyaxe = JOYAXE_RY;
+        break;
+    case HUG_RZ:
+        joyaxe = JOYAXE_RZ;
+        break;
+    default:
+        joyaxe = -1;
+    }
+    return joyaxe;
+}
+
+static unsigned
+hatval_to_sdl(Sint32 hatval)
+{
+    static const unsigned hat_dir_map[8] = {
+        SDL_HAT_UP, SDL_HAT_RIGHTUP, SDL_HAT_RIGHT, SDL_HAT_RIGHTDOWN,
+        SDL_HAT_DOWN, SDL_HAT_LEFTDOWN, SDL_HAT_LEFT, SDL_HAT_LEFTUP
+    };
+    unsigned result;
+    if ((hatval & 7) == hatval)
+        result = hat_dir_map[hatval];
+    else
+        result = SDL_HAT_CENTERED;
+    return result;
+}
+
+
+int
+SDL_SYS_JoystickOpen(SDL_Joystick * joy)
+{
+    char *path = joynames[joy->index];
+    struct joystick_hwdata *hw;
+    struct hid_item hitem;
+    struct hid_data *hdata;
+    struct report *rep;
+    int fd;
+    int i;
+
+    fd = open(path, O_RDONLY);
+    if (fd == -1) {
+        SDL_SetError("%s: %s", path, strerror(errno));
+        return (-1);
+    }
+
+    hw = (struct joystick_hwdata *)
+        SDL_malloc(sizeof(struct joystick_hwdata));
+    if (hw == NULL) {
+        SDL_OutOfMemory();
+        close(fd);
+        return (-1);
+    }
+    joy->hwdata = hw;
+    hw->fd = fd;
+    hw->path = strdup(path);
+    if (!SDL_strncmp(path, "/dev/joy", 8)) {
+        hw->type = BSDJOY_JOY;
+        joy->naxes = 2;
+        joy->nbuttons = 2;
+        joy->nhats = 0;
+        joy->nballs = 0;
+        joydevnames[joy->index] = strdup("Gameport joystick");
+        goto usbend;
+    } else {
+        hw->type = BSDJOY_UHID;
+    }
+
+    {
+        int ax;
+        for (ax = 0; ax < JOYAXE_count; ax++)
+            hw->axis_map[ax] = -1;
+    }
+    hw->repdesc = hid_get_report_desc(fd);
+    if (hw->repdesc == NULL) {
+        SDL_SetError("%s: USB_GET_REPORT_DESC: %s", hw->path,
+                     strerror(errno));
+        goto usberr;
+    }
+    rep = &hw->inreport;
+#if defined(__FREEBSD__) && (__FreeBSD_kernel_version > 800063) || defined(__FreeBSD_kernel__)
+    rep->rid = hid_get_report_id(fd);
+    if (rep->rid < 0) {
+#else
+    if (ioctl(fd, USB_GET_REPORT_ID, &rep->rid) < 0) {
+#endif
+        rep->rid = -1;          /* XXX */
+    }
+    if (report_alloc(rep, hw->repdesc, REPORT_INPUT) < 0) {
+        goto usberr;
+    }
+    if (rep->size <= 0) {
+        SDL_SetError("%s: Input report descriptor has invalid length",
+                     hw->path);
+        goto usberr;
+    }
+#if defined(USBHID_NEW) || (defined(__FREEBSD__) && __FreeBSD_kernel_version >= 500111) || defined(__FreeBSD_kernel__)
+    hdata = hid_start_parse(hw->repdesc, 1 << hid_input, rep->rid);
+#else
+    hdata = hid_start_parse(hw->repdesc, 1 << hid_input);
+#endif
+    if (hdata == NULL) {
+        SDL_SetError("%s: Cannot start HID parser", hw->path);
+        goto usberr;
+    }
+    joy->naxes = 0;
+    joy->nbuttons = 0;
+    joy->nhats = 0;
+    joy->nballs = 0;
+    for (i = 0; i < JOYAXE_count; i++)
+        hw->axis_map[i] = -1;
+
+    while (hid_get_item(hdata, &hitem) > 0) {
+        char *sp;
+        const char *s;
+
+        switch (hitem.kind) {
+        case hid_collection:
+            switch (HID_PAGE(hitem.usage)) {
+            case HUP_GENERIC_DESKTOP:
+                switch (HID_USAGE(hitem.usage)) {
+                case HUG_JOYSTICK:
+                case HUG_GAME_PAD:
+                    s = hid_usage_in_page(hitem.usage);
+                    sp = SDL_malloc(SDL_strlen(s) + 5);
+                    SDL_snprintf(sp, SDL_strlen(s) + 5, "%s (%d)",
+                                 s, joy->index);
+                    joydevnames[joy->index] = sp;
+                }
+            }
+            break;
+        case hid_input:
+            switch (HID_PAGE(hitem.usage)) {
+            case HUP_GENERIC_DESKTOP:
+                {
+                    unsigned usage = HID_USAGE(hitem.usage);
+                    int joyaxe = usage_to_joyaxe(usage);
+                    if (joyaxe >= 0) {
+                        hw->axis_map[joyaxe] = 1;
+                    } else if (usage == HUG_HAT_SWITCH) {
+                        joy->nhats++;
+                    }
+                    break;
+                }
+            case HUP_BUTTON:
+                joy->nbuttons++;
+                break;
+            default:
+                break;
+            }
+            break;
+        default:
+            break;
+        }
+    }
+    hid_end_parse(hdata);
+    for (i = 0; i < JOYAXE_count; i++)
+        if (hw->axis_map[i] > 0)
+            hw->axis_map[i] = joy->naxes++;
+
+  usbend:
+    /* The poll blocks the event thread. */
+    fcntl(fd, F_SETFL, O_NONBLOCK);
+
+    return (0);
+  usberr:
+    close(hw->fd);
+    SDL_free(hw->path);
+    SDL_free(hw);
+    return (-1);
+}
+
+void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joy)
+{
+    struct hid_item hitem;
+    struct hid_data *hdata;
+    struct report *rep;
+    int nbutton, naxe = -1;
+    Sint32 v;
+
+#if defined(__FREEBSD__) || SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H || defined(__FreeBSD_kernel__)
+    struct joystick gameport;
+    static int x, y, xmin = 0xffff, ymin = 0xffff, xmax = 0, ymax = 0;
+
+    if (joy->hwdata->type == BSDJOY_JOY) {
+        if (read(joy->hwdata->fd, &gameport, sizeof gameport) !=
+            sizeof gameport)
+            return;
+        if (abs(x - gameport.x) > 8) {
+            x = gameport.x;
+            if (x < xmin) {
+                xmin = x;
+            }
+            if (x > xmax) {
+                xmax = x;
+            }
+            if (xmin == xmax) {
+                xmin--;
+                xmax++;
+            }
+            v = (Sint32) x;
+            v -= (xmax + xmin + 1) / 2;
+            v *= 32768 / ((xmax - xmin + 1) / 2);
+            SDL_PrivateJoystickAxis(joy, 0, v);
+        }
+        if (abs(y - gameport.y) > 8) {
+            y = gameport.y;
+            if (y < ymin) {
+                ymin = y;
+            }
+            if (y > ymax) {
+                ymax = y;
+            }
+            if (ymin == ymax) {
+                ymin--;
+                ymax++;
+            }
+            v = (Sint32) y;
+            v -= (ymax + ymin + 1) / 2;
+            v *= 32768 / ((ymax - ymin + 1) / 2);
+            SDL_PrivateJoystickAxis(joy, 1, v);
+        }
+        if (gameport.b1 != joy->buttons[0]) {
+            SDL_PrivateJoystickButton(joy, 0, gameport.b1);
+        }
+        if (gameport.b2 != joy->buttons[1]) {
+            SDL_PrivateJoystickButton(joy, 1, gameport.b2);
+        }
+        return;
+    }
+#endif /* defined(__FREEBSD__) || SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H */
+
+    rep = &joy->hwdata->inreport;
+
+    if (read(joy->hwdata->fd, REP_BUF_DATA(rep), rep->size) != rep->size) {
+        return;
+    }
+#if defined(USBHID_NEW) || (defined(__FREEBSD__) && __FreeBSD_kernel_version >= 500111) || defined(__FreeBSD_kernel__)
+    hdata = hid_start_parse(joy->hwdata->repdesc, 1 << hid_input, rep->rid);
+#else
+    hdata = hid_start_parse(joy->hwdata->repdesc, 1 << hid_input);
+#endif
+    if (hdata == NULL) {
+        fprintf(stderr, "%s: Cannot start HID parser\n", joy->hwdata->path);
+        return;
+    }
+
+    for (nbutton = 0; hid_get_item(hdata, &hitem) > 0;) {
+        switch (hitem.kind) {
+        case hid_input:
+            switch (HID_PAGE(hitem.usage)) {
+            case HUP_GENERIC_DESKTOP:
+                {
+                    unsigned usage = HID_USAGE(hitem.usage);
+                    int joyaxe = usage_to_joyaxe(usage);
+                    if (joyaxe >= 0) {
+                        naxe = joy->hwdata->axis_map[joyaxe];
+                        /* scaleaxe */
+                        v = (Sint32) hid_get_data(REP_BUF_DATA(rep), &hitem);
+                        v -= (hitem.logical_maximum +
+                              hitem.logical_minimum + 1) / 2;
+                        v *= 32768 /
+                            ((hitem.logical_maximum -
+                              hitem.logical_minimum + 1) / 2);
+                        if (v != joy->axes[naxe]) {
+                            SDL_PrivateJoystickAxis(joy, naxe, v);
+                        }
+                    } else if (usage == HUG_HAT_SWITCH) {
+                        v = (Sint32) hid_get_data(REP_BUF_DATA(rep), &hitem);
+                        SDL_PrivateJoystickHat(joy, 0,
+                                               hatval_to_sdl(v) -
+                                               hitem.logical_minimum);
+                    }
+                    break;
+                }
+            case HUP_BUTTON:
+                v = (Sint32) hid_get_data(REP_BUF_DATA(rep), &hitem);
+                if (joy->buttons[nbutton] != v) {
+                    SDL_PrivateJoystickButton(joy, nbutton, v);
+                }
+                nbutton++;
+                break;
+            default:
+                continue;
+            }
+            break;
+        default:
+            break;
+        }
+    }
+    hid_end_parse(hdata);
+
+    return;
+}
+
+/* Function to close a joystick after use */
+void
+SDL_SYS_JoystickClose(SDL_Joystick * joy)
+{
+    if (SDL_strncmp(joy->hwdata->path, "/dev/joy", 8)) {
+        report_free(&joy->hwdata->inreport);
+        hid_dispose_report_desc(joy->hwdata->repdesc);
+    }
+    close(joy->hwdata->fd);
+    SDL_free(joy->hwdata->path);
+    SDL_free(joy->hwdata);
+
+    return;
+}
+
+void
+SDL_SYS_JoystickQuit(void)
+{
+    int i;
+
+    for (i = 0; i < MAX_JOYS; i++) {
+        if (joynames[i] != NULL)
+            SDL_free(joynames[i]);
+        if (joydevnames[i] != NULL)
+            SDL_free(joydevnames[i]);
+    }
+
+    return;
+}
+
+static int
+report_alloc(struct report *r, struct report_desc *rd, int repind)
+{
+    int len;
+
+#ifdef __DragonFly__
+    len = hid_report_size(rd, r->rid, repinfo[repind].kind);
+#elif __FREEBSD__
+# if (__FreeBSD_kernel_version >= 460000) || defined(__FreeBSD_kernel__)
+#  if (__FreeBSD_kernel_version <= 500111)
+    len = hid_report_size(rd, r->rid, repinfo[repind].kind);
+#  else
+    len = hid_report_size(rd, repinfo[repind].kind, r->rid);
+#  endif
+# else
+    len = hid_report_size(rd, repinfo[repind].kind, &r->rid);
+# endif
+#else
+# ifdef USBHID_NEW
+    len = hid_report_size(rd, repinfo[repind].kind, r->rid);
+# else
+    len = hid_report_size(rd, repinfo[repind].kind, &r->rid);
+# endif
+#endif
+
+    if (len < 0) {
+        SDL_SetError("Negative HID report size");
+        return (-1);
+    }
+    r->size = len;
+
+    if (r->size > 0) {
+        r->buf = SDL_malloc(sizeof(*r->buf) - sizeof(REP_BUF_DATA(r)) +
+                            r->size);
+        if (r->buf == NULL) {
+            SDL_OutOfMemory();
+            return (-1);
+        }
+    } else {
+        r->buf = NULL;
+    }
+
+    r->status = SREPORT_CLEAN;
+    return (0);
+}
+
+static void
+report_free(struct report *r)
+{
+    if (r->buf != NULL) {
+        SDL_free(r->buf);
+    }
+    r->status = SREPORT_UNINIT;
+}
+
+#endif /* SDL_JOYSTICK_USBHID */
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/darwin/SDL_sysjoystick.c

@@ -0,0 +1,846 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_IOKIT
+
+/* SDL joystick driver for Darwin / Mac OS X, based on the IOKit HID API */
+/* Written 2001 by Max Horn */
+
+#include <unistd.h>
+#include <ctype.h>
+#include <sysexits.h>
+#include <mach/mach.h>
+#include <mach/mach_error.h>
+#include <IOKit/IOKitLib.h>
+#include <IOKit/IOCFPlugIn.h>
+#ifdef MACOS_10_0_4
+#include <IOKit/hidsystem/IOHIDUsageTables.h>
+#else
+/* The header was moved here in Mac OS X 10.1 */
+#include <Kernel/IOKit/hidsystem/IOHIDUsageTables.h>
+#endif
+#include <IOKit/hid/IOHIDLib.h>
+#include <IOKit/hid/IOHIDKeys.h>
+#include <CoreFoundation/CoreFoundation.h>
+#include <Carbon/Carbon.h>      /* for NewPtrClear, DisposePtr */
+
+/* For force feedback testing. */
+#include <ForceFeedback/ForceFeedback.h>
+#include <ForceFeedback/ForceFeedbackConstants.h>
+
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+#include "SDL_sysjoystick_c.h"
+
+
+/* Linked list of all available devices */
+static recDevice *gpDeviceList = NULL;
+
+
+static void
+HIDReportErrorNum(char *strError, long numError)
+{
+    SDL_SetError(strError);
+}
+
+static void HIDGetCollectionElements(CFMutableDictionaryRef deviceProperties,
+                                     recDevice * pDevice);
+
+/* returns current value for element, polling element
+ * will return 0 on error conditions which should be accounted for by application
+ */
+
+static SInt32
+HIDGetElementValue(recDevice * pDevice, recElement * pElement)
+{
+    IOReturn result = kIOReturnSuccess;
+    IOHIDEventStruct hidEvent;
+    hidEvent.value = 0;
+
+    if (NULL != pDevice && NULL != pElement && NULL != pDevice->interface) {
+        result =
+            (*(pDevice->interface))->getElementValue(pDevice->interface,
+                                                     pElement->cookie,
+                                                     &hidEvent);
+        if (kIOReturnSuccess == result) {
+            /* record min and max for auto calibration */
+            if (hidEvent.value < pElement->minReport)
+                pElement->minReport = hidEvent.value;
+            if (hidEvent.value > pElement->maxReport)
+                pElement->maxReport = hidEvent.value;
+        }
+    }
+
+    /* auto user scale */
+    return hidEvent.value;
+}
+
+static SInt32
+HIDScaledCalibratedValue(recDevice * pDevice, recElement * pElement,
+                         long min, long max)
+{
+    float deviceScale = max - min;
+    float readScale = pElement->maxReport - pElement->minReport;
+    SInt32 value = HIDGetElementValue(pDevice, pElement);
+    if (readScale == 0)
+        return value;           /* no scaling at all */
+    else
+        return ((value - pElement->minReport) * deviceScale / readScale) +
+            min;
+}
+
+
+static void
+HIDRemovalCallback(void *target, IOReturn result, void *refcon, void *sender)
+{
+    recDevice *device = (recDevice *) refcon;
+    device->removed = 1;
+    device->uncentered = 1;
+}
+
+
+
+/* Create and open an interface to device, required prior to extracting values or building queues.
+ * Note: appliction now owns the device and must close and release it prior to exiting
+ */
+
+static IOReturn
+HIDCreateOpenDeviceInterface(io_object_t hidDevice, recDevice * pDevice)
+{
+    IOReturn result = kIOReturnSuccess;
+    HRESULT plugInResult = S_OK;
+    SInt32 score = 0;
+    IOCFPlugInInterface **ppPlugInInterface = NULL;
+
+    if (NULL == pDevice->interface) {
+        result =
+            IOCreatePlugInInterfaceForService(hidDevice,
+                                              kIOHIDDeviceUserClientTypeID,
+                                              kIOCFPlugInInterfaceID,
+                                              &ppPlugInInterface, &score);
+        if (kIOReturnSuccess == result) {
+            /* Call a method of the intermediate plug-in to create the device interface */
+            plugInResult =
+                (*ppPlugInInterface)->QueryInterface(ppPlugInInterface,
+                                                     CFUUIDGetUUIDBytes
+                                                     (kIOHIDDeviceInterfaceID),
+                                                     (void *)
+                                                     &(pDevice->interface));
+            if (S_OK != plugInResult)
+                HIDReportErrorNum
+                    ("CouldnÕt query HID class device interface from plugInInterface",
+                     plugInResult);
+            (*ppPlugInInterface)->Release(ppPlugInInterface);
+        } else
+            HIDReportErrorNum
+                ("Failed to create **plugInInterface via IOCreatePlugInInterfaceForService.",
+                 result);
+    }
+    if (NULL != pDevice->interface) {
+        result = (*(pDevice->interface))->open(pDevice->interface, 0);
+        if (kIOReturnSuccess != result)
+            HIDReportErrorNum
+                ("Failed to open pDevice->interface via open.", result);
+        else
+            (*(pDevice->interface))->setRemovalCallback(pDevice->interface,
+                                                        HIDRemovalCallback,
+                                                        pDevice, pDevice);
+
+    }
+    return result;
+}
+
+/* Closes and releases interface to device, should be done prior to exting application
+ * Note: will have no affect if device or interface do not exist
+ * application will "own" the device if interface is not closed
+ * (device may have to be plug and re-plugged in different location to get it working again without a restart)
+ */
+
+static IOReturn
+HIDCloseReleaseInterface(recDevice * pDevice)
+{
+    IOReturn result = kIOReturnSuccess;
+
+    if ((NULL != pDevice) && (NULL != pDevice->interface)) {
+        /* close the interface */
+        result = (*(pDevice->interface))->close(pDevice->interface);
+        if (kIOReturnNotOpen == result) {
+            /* do nothing as device was not opened, thus can't be closed */
+        } else if (kIOReturnSuccess != result)
+            HIDReportErrorNum("Failed to close IOHIDDeviceInterface.",
+                              result);
+        /* release the interface */
+        result = (*(pDevice->interface))->Release(pDevice->interface);
+        if (kIOReturnSuccess != result)
+            HIDReportErrorNum("Failed to release IOHIDDeviceInterface.",
+                              result);
+        pDevice->interface = NULL;
+    }
+    return result;
+}
+
+/* extracts actual specific element information from each element CF dictionary entry */
+
+static void
+HIDGetElementInfo(CFTypeRef refElement, recElement * pElement)
+{
+    long number;
+    CFTypeRef refType;
+
+    refType = CFDictionaryGetValue(refElement, CFSTR(kIOHIDElementCookieKey));
+    if (refType && CFNumberGetValue(refType, kCFNumberLongType, &number))
+        pElement->cookie = (IOHIDElementCookie) number;
+    refType = CFDictionaryGetValue(refElement, CFSTR(kIOHIDElementMinKey));
+    if (refType && CFNumberGetValue(refType, kCFNumberLongType, &number))
+        pElement->minReport = pElement->min = number;
+    pElement->maxReport = pElement->min;
+    refType = CFDictionaryGetValue(refElement, CFSTR(kIOHIDElementMaxKey));
+    if (refType && CFNumberGetValue(refType, kCFNumberLongType, &number))
+        pElement->maxReport = pElement->max = number;
+/*
+	TODO: maybe should handle the following stuff somehow?
+
+	refType = CFDictionaryGetValue (refElement, CFSTR(kIOHIDElementScaledMinKey));
+	if (refType && CFNumberGetValue (refType, kCFNumberLongType, &number))
+		pElement->scaledMin = number;
+	refType = CFDictionaryGetValue (refElement, CFSTR(kIOHIDElementScaledMaxKey));
+	if (refType && CFNumberGetValue (refType, kCFNumberLongType, &number))
+		pElement->scaledMax = number;
+	refType = CFDictionaryGetValue (refElement, CFSTR(kIOHIDElementSizeKey));
+	if (refType && CFNumberGetValue (refType, kCFNumberLongType, &number))
+		pElement->size = number;
+	refType = CFDictionaryGetValue (refElement, CFSTR(kIOHIDElementIsRelativeKey));
+	if (refType)
+		pElement->relative = CFBooleanGetValue (refType);
+	refType = CFDictionaryGetValue (refElement, CFSTR(kIOHIDElementIsWrappingKey));
+	if (refType)
+		pElement->wrapping = CFBooleanGetValue (refType);
+	refType = CFDictionaryGetValue (refElement, CFSTR(kIOHIDElementIsNonLinearKey));
+	if (refType)
+		pElement->nonLinear = CFBooleanGetValue (refType);
+	refType = CFDictionaryGetValue (refElement, CFSTR(kIOHIDElementHasPreferedStateKey));
+	if (refType)
+		pElement->preferredState = CFBooleanGetValue (refType);
+	refType = CFDictionaryGetValue (refElement, CFSTR(kIOHIDElementHasNullStateKey));
+	if (refType)
+		pElement->nullState = CFBooleanGetValue (refType);
+*/
+}
+
+/* examines CF dictionary vlaue in device element hierarchy to determine if it is element of interest or a collection of more elements
+ * if element of interest allocate storage, add to list and retrieve element specific info
+ * if collection then pass on to deconstruction collection into additional individual elements
+ */
+
+static void
+HIDAddElement(CFTypeRef refElement, recDevice * pDevice)
+{
+    recElement *element = NULL;
+    recElement **headElement = NULL;
+    long elementType, usagePage, usage;
+    CFTypeRef refElementType =
+        CFDictionaryGetValue(refElement, CFSTR(kIOHIDElementTypeKey));
+    CFTypeRef refUsagePage =
+        CFDictionaryGetValue(refElement, CFSTR(kIOHIDElementUsagePageKey));
+    CFTypeRef refUsage =
+        CFDictionaryGetValue(refElement, CFSTR(kIOHIDElementUsageKey));
+
+
+    if ((refElementType)
+        &&
+        (CFNumberGetValue(refElementType, kCFNumberLongType, &elementType))) {
+        /* look at types of interest */
+        if ((elementType == kIOHIDElementTypeInput_Misc)
+            || (elementType == kIOHIDElementTypeInput_Button)
+            || (elementType == kIOHIDElementTypeInput_Axis)) {
+            if (refUsagePage
+                && CFNumberGetValue(refUsagePage, kCFNumberLongType,
+                                    &usagePage) && refUsage
+                && CFNumberGetValue(refUsage, kCFNumberLongType, &usage)) {
+                switch (usagePage) {    /* only interested in kHIDPage_GenericDesktop and kHIDPage_Button */
+                case kHIDPage_GenericDesktop:
+                    {
+                        switch (usage) {        /* look at usage to determine function */
+                        case kHIDUsage_GD_X:
+                        case kHIDUsage_GD_Y:
+                        case kHIDUsage_GD_Z:
+                        case kHIDUsage_GD_Rx:
+                        case kHIDUsage_GD_Ry:
+                        case kHIDUsage_GD_Rz:
+                        case kHIDUsage_GD_Slider:
+                        case kHIDUsage_GD_Dial:
+                        case kHIDUsage_GD_Wheel:
+                            element = (recElement *)
+                                NewPtrClear(sizeof(recElement));
+                            if (element) {
+                                pDevice->axes++;
+                                headElement = &(pDevice->firstAxis);
+                            }
+                            break;
+                        case kHIDUsage_GD_Hatswitch:
+                            element = (recElement *)
+                                NewPtrClear(sizeof(recElement));
+                            if (element) {
+                                pDevice->hats++;
+                                headElement = &(pDevice->firstHat);
+                            }
+                            break;
+                        }
+                    }
+                    break;
+                case kHIDPage_Button:
+                    element = (recElement *)
+                        NewPtrClear(sizeof(recElement));
+                    if (element) {
+                        pDevice->buttons++;
+                        headElement = &(pDevice->firstButton);
+                    }
+                    break;
+                default:
+                    break;
+                }
+            }
+        } else if (kIOHIDElementTypeCollection == elementType)
+            HIDGetCollectionElements((CFMutableDictionaryRef) refElement,
+                                     pDevice);
+    }
+
+    if (element && headElement) {       /* add to list */
+        recElement *elementPrevious = NULL;
+        recElement *elementCurrent = *headElement;
+        while (elementCurrent && usage >= elementCurrent->usage) {
+            elementPrevious = elementCurrent;
+            elementCurrent = elementCurrent->pNext;
+        }
+        if (elementPrevious) {
+            elementPrevious->pNext = element;
+        } else {
+            *headElement = element;
+        }
+        element->usagePage = usagePage;
+        element->usage = usage;
+        element->pNext = elementCurrent;
+        HIDGetElementInfo(refElement, element);
+        pDevice->elements++;
+    }
+}
+
+/* collects information from each array member in device element list (each array memeber = element) */
+
+static void
+HIDGetElementsCFArrayHandler(const void *value, void *parameter)
+{
+    if (CFGetTypeID(value) == CFDictionaryGetTypeID())
+        HIDAddElement((CFTypeRef) value, (recDevice *) parameter);
+}
+
+/* handles retrieval of element information from arrays of elements in device IO registry information */
+
+static void
+HIDGetElements(CFTypeRef refElementCurrent, recDevice * pDevice)
+{
+    CFTypeID type = CFGetTypeID(refElementCurrent);
+    if (type == CFArrayGetTypeID()) {   /* if element is an array */
+        CFRange range = { 0, CFArrayGetCount(refElementCurrent) };
+        /* CountElementsCFArrayHandler called for each array member */
+        CFArrayApplyFunction(refElementCurrent, range,
+                             HIDGetElementsCFArrayHandler, pDevice);
+    }
+}
+
+/* handles extracting element information from element collection CF types
+ * used from top level element decoding and hierarchy deconstruction to flatten device element list
+ */
+
+static void
+HIDGetCollectionElements(CFMutableDictionaryRef deviceProperties,
+                         recDevice * pDevice)
+{
+    CFTypeRef refElementTop =
+        CFDictionaryGetValue(deviceProperties, CFSTR(kIOHIDElementKey));
+    if (refElementTop)
+        HIDGetElements(refElementTop, pDevice);
+}
+
+/* use top level element usage page and usage to discern device usage page and usage setting appropriate vlaues in device record */
+
+static void
+HIDTopLevelElementHandler(const void *value, void *parameter)
+{
+    CFTypeRef refCF = 0;
+    if (CFGetTypeID(value) != CFDictionaryGetTypeID())
+        return;
+    refCF = CFDictionaryGetValue(value, CFSTR(kIOHIDElementUsagePageKey));
+    if (!CFNumberGetValue
+        (refCF, kCFNumberLongType, &((recDevice *) parameter)->usagePage))
+        SDL_SetError("CFNumberGetValue error retrieving pDevice->usagePage.");
+    refCF = CFDictionaryGetValue(value, CFSTR(kIOHIDElementUsageKey));
+    if (!CFNumberGetValue
+        (refCF, kCFNumberLongType, &((recDevice *) parameter)->usage))
+        SDL_SetError("CFNumberGetValue error retrieving pDevice->usage.");
+}
+
+/* extracts device info from CF dictionary records in IO registry */
+
+static void
+HIDGetDeviceInfo(io_object_t hidDevice, CFMutableDictionaryRef hidProperties,
+                 recDevice * pDevice)
+{
+    CFMutableDictionaryRef usbProperties = 0;
+    io_registry_entry_t parent1, parent2;
+
+    /* Mac OS X currently is not mirroring all USB properties to HID page so need to look at USB device page also
+     * get dictionary for usb properties: step up two levels and get CF dictionary for USB properties
+     */
+    if ((KERN_SUCCESS ==
+         IORegistryEntryGetParentEntry(hidDevice, kIOServicePlane, &parent1))
+        && (KERN_SUCCESS ==
+            IORegistryEntryGetParentEntry(parent1, kIOServicePlane, &parent2))
+        && (KERN_SUCCESS ==
+            IORegistryEntryCreateCFProperties(parent2, &usbProperties,
+                                              kCFAllocatorDefault,
+                                              kNilOptions))) {
+        if (usbProperties) {
+            CFTypeRef refCF = 0;
+            /* get device info
+             * try hid dictionary first, if fail then go to usb dictionary
+             */
+
+
+            /* get product name */
+            refCF =
+                CFDictionaryGetValue(hidProperties, CFSTR(kIOHIDProductKey));
+            if (!refCF)
+                refCF =
+                    CFDictionaryGetValue(usbProperties,
+                                         CFSTR("USB Product Name"));
+            if (refCF) {
+                if (!CFStringGetCString
+                    (refCF, pDevice->product, 256,
+                     CFStringGetSystemEncoding()))
+                    SDL_SetError
+                        ("CFStringGetCString error retrieving pDevice->product.");
+            }
+
+            /* get usage page and usage */
+            refCF =
+                CFDictionaryGetValue(hidProperties,
+                                     CFSTR(kIOHIDPrimaryUsagePageKey));
+            if (refCF) {
+                if (!CFNumberGetValue
+                    (refCF, kCFNumberLongType, &pDevice->usagePage))
+                    SDL_SetError
+                        ("CFNumberGetValue error retrieving pDevice->usagePage.");
+                refCF =
+                    CFDictionaryGetValue(hidProperties,
+                                         CFSTR(kIOHIDPrimaryUsageKey));
+                if (refCF)
+                    if (!CFNumberGetValue
+                        (refCF, kCFNumberLongType, &pDevice->usage))
+                        SDL_SetError
+                            ("CFNumberGetValue error retrieving pDevice->usage.");
+            }
+
+            if (NULL == refCF) {        /* get top level element HID usage page or usage */
+                /* use top level element instead */
+                CFTypeRef refCFTopElement = 0;
+                refCFTopElement =
+                    CFDictionaryGetValue(hidProperties,
+                                         CFSTR(kIOHIDElementKey));
+                {
+                    /* refCFTopElement points to an array of element dictionaries */
+                    CFRange range = { 0, CFArrayGetCount(refCFTopElement) };
+                    CFArrayApplyFunction(refCFTopElement, range,
+                                         HIDTopLevelElementHandler, pDevice);
+                }
+            }
+
+            CFRelease(usbProperties);
+        } else
+            SDL_SetError
+                ("IORegistryEntryCreateCFProperties failed to create usbProperties.");
+
+        if (kIOReturnSuccess != IOObjectRelease(parent2))
+            SDL_SetError("IOObjectRelease error with parent2.");
+        if (kIOReturnSuccess != IOObjectRelease(parent1))
+            SDL_SetError("IOObjectRelease error with parent1.");
+    }
+}
+
+
+static recDevice *
+HIDBuildDevice(io_object_t hidDevice)
+{
+    recDevice *pDevice = (recDevice *) NewPtrClear(sizeof(recDevice));
+    if (pDevice) {
+        /* get dictionary for HID properties */
+        CFMutableDictionaryRef hidProperties = 0;
+        kern_return_t result =
+            IORegistryEntryCreateCFProperties(hidDevice, &hidProperties,
+                                              kCFAllocatorDefault,
+                                              kNilOptions);
+        if ((result == KERN_SUCCESS) && hidProperties) {
+            /* create device interface */
+            result = HIDCreateOpenDeviceInterface(hidDevice, pDevice);
+            if (kIOReturnSuccess == result) {
+                HIDGetDeviceInfo(hidDevice, hidProperties, pDevice);    /* hidDevice used to find parents in registry tree */
+                HIDGetCollectionElements(hidProperties, pDevice);
+            } else {
+                DisposePtr((Ptr) pDevice);
+                pDevice = NULL;
+            }
+            CFRelease(hidProperties);
+        } else {
+            DisposePtr((Ptr) pDevice);
+            pDevice = NULL;
+        }
+    }
+    return pDevice;
+}
+
+/* disposes of the element list associated with a device and the memory associated with the list
+ */
+
+static void
+HIDDisposeElementList(recElement ** elementList)
+{
+    recElement *pElement = *elementList;
+    while (pElement) {
+        recElement *pElementNext = pElement->pNext;
+        DisposePtr((Ptr) pElement);
+        pElement = pElementNext;
+    }
+    *elementList = NULL;
+}
+
+/* disposes of a single device, closing and releaseing interface, freeing memory fro device and elements, setting device pointer to NULL
+ * all your device no longer belong to us... (i.e., you do not 'own' the device anymore)
+ */
+
+static recDevice *
+HIDDisposeDevice(recDevice ** ppDevice)
+{
+    kern_return_t result = KERN_SUCCESS;
+    recDevice *pDeviceNext = NULL;
+    if (*ppDevice) {
+        /* save next device prior to disposing of this device */
+        pDeviceNext = (*ppDevice)->pNext;
+
+        /* free posible io_service_t */
+        if ((*ppDevice)->ffservice) {
+            IOObjectRelease((*ppDevice)->ffservice);
+            (*ppDevice)->ffservice = 0;
+        }
+
+        /* free element lists */
+        HIDDisposeElementList(&(*ppDevice)->firstAxis);
+        HIDDisposeElementList(&(*ppDevice)->firstButton);
+        HIDDisposeElementList(&(*ppDevice)->firstHat);
+
+        result = HIDCloseReleaseInterface(*ppDevice);   /* function sanity checks interface value (now application does not own device) */
+        if (kIOReturnSuccess != result)
+            HIDReportErrorNum
+                ("HIDCloseReleaseInterface failed when trying to dipose device.",
+                 result);
+        DisposePtr((Ptr) * ppDevice);
+        *ppDevice = NULL;
+    }
+    return pDeviceNext;
+}
+
+
+/* Function to scan the system for joysticks.
+ * Joystick 0 should be the system default joystick.
+ * This function should return the number of available joysticks, or -1
+ * on an unrecoverable fatal error.
+ */
+int
+SDL_SYS_JoystickInit(void)
+{
+    IOReturn result = kIOReturnSuccess;
+    mach_port_t masterPort = 0;
+    io_iterator_t hidObjectIterator = 0;
+    CFMutableDictionaryRef hidMatchDictionary = NULL;
+    recDevice *device, *lastDevice;
+    io_object_t ioHIDDeviceObject = 0;
+
+    SDL_numjoysticks = 0;
+
+    if (gpDeviceList) {
+        SDL_SetError("Joystick: Device list already inited.");
+        return -1;
+    }
+
+    result = IOMasterPort(bootstrap_port, &masterPort);
+    if (kIOReturnSuccess != result) {
+        SDL_SetError("Joystick: IOMasterPort error with bootstrap_port.");
+        return -1;
+    }
+
+    /* Set up a matching dictionary to search I/O Registry by class name for all HID class devices. */
+    hidMatchDictionary = IOServiceMatching(kIOHIDDeviceKey);
+    if (hidMatchDictionary) {
+        /* Add key for device type (joystick, in this case) to refine the matching dictionary. */
+
+        /* NOTE: we now perform this filtering later
+           UInt32 usagePage = kHIDPage_GenericDesktop;
+           UInt32 usage = kHIDUsage_GD_Joystick;
+           CFNumberRef refUsage = NULL, refUsagePage = NULL;
+
+           refUsage = CFNumberCreate (kCFAllocatorDefault, kCFNumberIntType, &usage);
+           CFDictionarySetValue (hidMatchDictionary, CFSTR (kIOHIDPrimaryUsageKey), refUsage);
+           refUsagePage = CFNumberCreate (kCFAllocatorDefault, kCFNumberIntType, &usagePage);
+           CFDictionarySetValue (hidMatchDictionary, CFSTR (kIOHIDPrimaryUsagePageKey), refUsagePage);
+         */
+    } else {
+        SDL_SetError
+            ("Joystick: Failed to get HID CFMutableDictionaryRef via IOServiceMatching.");
+        return -1;
+    }
+
+    /*/ Now search I/O Registry for matching devices. */
+    result =
+        IOServiceGetMatchingServices(masterPort, hidMatchDictionary,
+                                     &hidObjectIterator);
+    /* Check for errors */
+    if (kIOReturnSuccess != result) {
+        SDL_SetError("Joystick: Couldn't create a HID object iterator.");
+        return -1;
+    }
+    if (!hidObjectIterator) {   /* there are no joysticks */
+        gpDeviceList = NULL;
+        SDL_numjoysticks = 0;
+        return 0;
+    }
+    /* IOServiceGetMatchingServices consumes a reference to the dictionary, so we don't need to release the dictionary ref. */
+
+    /* build flat linked list of devices from device iterator */
+
+    gpDeviceList = lastDevice = NULL;
+
+    while ((ioHIDDeviceObject = IOIteratorNext(hidObjectIterator))) {
+        /* build a device record */
+        device = HIDBuildDevice(ioHIDDeviceObject);
+        if (!device)
+            continue;
+
+        /* Filter device list to non-keyboard/mouse stuff */
+        if ((device->usagePage != kHIDPage_GenericDesktop) ||
+            ((device->usage != kHIDUsage_GD_Joystick &&
+              device->usage != kHIDUsage_GD_GamePad &&
+              device->usage != kHIDUsage_GD_MultiAxisController))) {
+
+            /* release memory for the device */
+            HIDDisposeDevice(&device);
+            DisposePtr((Ptr) device);
+            continue;
+        }
+
+        /* We have to do some storage of the io_service_t for
+         * SDL_HapticOpenFromJoystick */
+        if (FFIsForceFeedback(ioHIDDeviceObject) == FF_OK) {
+            device->ffservice = ioHIDDeviceObject;
+        } else {
+            device->ffservice = 0;
+        }
+
+        /* Add device to the end of the list */
+        if (lastDevice)
+            lastDevice->pNext = device;
+        else
+            gpDeviceList = device;
+        lastDevice = device;
+    }
+    result = IOObjectRelease(hidObjectIterator);        /* release the iterator */
+
+    /* Count the total number of devices we found */
+    device = gpDeviceList;
+    while (device) {
+        SDL_numjoysticks++;
+        device = device->pNext;
+    }
+
+    return SDL_numjoysticks;
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *
+SDL_SYS_JoystickName(int index)
+{
+    recDevice *device = gpDeviceList;
+
+    for (; index > 0; index--)
+        device = device->pNext;
+
+    return device->product;
+}
+
+/* Function to open a joystick for use.
+ * The joystick to open is specified by the index field of the joystick.
+ * This should fill the nbuttons and naxes fields of the joystick structure.
+ * It returns 0, or -1 if there is an error.
+ */
+int
+SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
+{
+    recDevice *device = gpDeviceList;
+    int index;
+
+    for (index = joystick->index; index > 0; index--)
+        device = device->pNext;
+
+    joystick->hwdata = device;
+    joystick->name = device->product;
+
+    joystick->naxes = device->axes;
+    joystick->nhats = device->hats;
+    joystick->nballs = 0;
+    joystick->nbuttons = device->buttons;
+
+    return 0;
+}
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+{
+    recDevice *device = joystick->hwdata;
+    recElement *element;
+    SInt32 value, range;
+    int i;
+
+    if (device->removed) {      /* device was unplugged; ignore it. */
+        if (device->uncentered) {
+            device->uncentered = 0;
+
+            /* Tell the app that everything is centered/unpressed... */
+            for (i = 0; i < device->axes; i++)
+                SDL_PrivateJoystickAxis(joystick, i, 0);
+
+            for (i = 0; i < device->buttons; i++)
+                SDL_PrivateJoystickButton(joystick, i, 0);
+
+            for (i = 0; i < device->hats; i++)
+                SDL_PrivateJoystickHat(joystick, i, SDL_HAT_CENTERED);
+        }
+
+        return;
+    }
+
+    element = device->firstAxis;
+    i = 0;
+    while (element) {
+        value = HIDScaledCalibratedValue(device, element, -32768, 32767);
+        if (value != joystick->axes[i])
+            SDL_PrivateJoystickAxis(joystick, i, value);
+        element = element->pNext;
+        ++i;
+    }
+
+    element = device->firstButton;
+    i = 0;
+    while (element) {
+        value = HIDGetElementValue(device, element);
+        if (value > 1)          /* handle pressure-sensitive buttons */
+            value = 1;
+        if (value != joystick->buttons[i])
+            SDL_PrivateJoystickButton(joystick, i, value);
+        element = element->pNext;
+        ++i;
+    }
+
+    element = device->firstHat;
+    i = 0;
+    while (element) {
+        Uint8 pos = 0;
+
+        range = (element->max - element->min + 1);
+        value = HIDGetElementValue(device, element) - element->min;
+        if (range == 4)         /* 4 position hatswitch - scale up value */
+            value *= 2;
+        else if (range != 8)    /* Neither a 4 nor 8 positions - fall back to default position (centered) */
+            value = -1;
+        switch (value) {
+        case 0:
+            pos = SDL_HAT_UP;
+            break;
+        case 1:
+            pos = SDL_HAT_RIGHTUP;
+            break;
+        case 2:
+            pos = SDL_HAT_RIGHT;
+            break;
+        case 3:
+            pos = SDL_HAT_RIGHTDOWN;
+            break;
+        case 4:
+            pos = SDL_HAT_DOWN;
+            break;
+        case 5:
+            pos = SDL_HAT_LEFTDOWN;
+            break;
+        case 6:
+            pos = SDL_HAT_LEFT;
+            break;
+        case 7:
+            pos = SDL_HAT_LEFTUP;
+            break;
+        default:
+            /* Every other value is mapped to center. We do that because some
+             * joysticks use 8 and some 15 for this value, and apparently
+             * there are even more variants out there - so we try to be generous.
+             */
+            pos = SDL_HAT_CENTERED;
+            break;
+        }
+        if (pos != joystick->hats[i])
+            SDL_PrivateJoystickHat(joystick, i, pos);
+        element = element->pNext;
+        ++i;
+    }
+
+    return;
+}
+
+/* Function to close a joystick after use */
+void
+SDL_SYS_JoystickClose(SDL_Joystick * joystick)
+{
+    /* Should we do anything here? */
+    return;
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void
+SDL_SYS_JoystickQuit(void)
+{
+    while (NULL != gpDeviceList)
+        gpDeviceList = HIDDisposeDevice(&gpDeviceList);
+}
+
+#endif /* SDL_JOYSTICK_IOKIT */
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/darwin/SDL_sysjoystick_c.h

@@ -0,0 +1,83 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+#ifndef SDL_JOYSTICK_IOKIT_H
+
+
+#include <IOKit/hid/IOHIDLib.h>
+#include <IOKit/hid/IOHIDKeys.h>
+
+
+struct recElement
+{
+    IOHIDElementCookie cookie;  /* unique value which identifies element, will NOT change */
+    long usagePage, usage;      /* HID usage */
+    long min;                   /* reported min value possible */
+    long max;                   /* reported max value possible */
+#if 0
+    /* TODO: maybe should handle the following stuff somehow? */
+
+    long scaledMin;             /* reported scaled min value possible */
+    long scaledMax;             /* reported scaled max value possible */
+    long size;                  /* size in bits of data return from element */
+    Boolean relative;           /* are reports relative to last report (deltas) */
+    Boolean wrapping;           /* does element wrap around (one value higher than max is min) */
+    Boolean nonLinear;          /* are the values reported non-linear relative to element movement */
+    Boolean preferredState;     /* does element have a preferred state (such as a button) */
+    Boolean nullState;          /* does element have null state */
+#endif                          /* 0 */
+
+    /* runtime variables used for auto-calibration */
+    long minReport;             /* min returned value */
+    long maxReport;             /* max returned value */
+
+    struct recElement *pNext;   /* next element in list */
+};
+typedef struct recElement recElement;
+
+struct joystick_hwdata
+{
+    io_service_t ffservice;     /* Interface for force feedback, 0 = no ff */
+    IOHIDDeviceInterface **interface;   /* interface to device, NULL = no interface */
+
+    char product[256];          /* name of product */
+    long usage;                 /* usage page from IOUSBHID Parser.h which defines general usage */
+    long usagePage;             /* usage within above page from IOUSBHID Parser.h which defines specific usage */
+
+    long axes;                  /* number of axis (calculated, not reported by device) */
+    long buttons;               /* number of buttons (calculated, not reported by device) */
+    long hats;                  /* number of hat switches (calculated, not reported by device) */
+    long elements;              /* number of total elements (shouldbe total of above) (calculated, not reported by device) */
+
+    recElement *firstAxis;
+    recElement *firstButton;
+    recElement *firstHat;
+
+    int removed;
+    int uncentered;
+
+    struct joystick_hwdata *pNext;      /* next device */
+};
+typedef struct joystick_hwdata recDevice;
+
+
+#endif /* SDL_JOYSTICK_IOKIT_H */

thirdparty/SDL/src/joystick/dummy/SDL_sysjoystick.c

@@ -0,0 +1,90 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+#if defined(SDL_JOYSTICK_DUMMY) || defined(SDL_JOYSTICK_DISABLED)
+
+/* This is the system specific header for the SDL joystick API */
+
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks.  Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+int
+SDL_SYS_JoystickInit(void)
+{
+    SDL_numjoysticks = 0;
+    return (0);
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *
+SDL_SYS_JoystickName(int index)
+{
+    SDL_SetError("Logic error: No joysticks available");
+    return (NULL);
+}
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+int
+SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
+{
+    SDL_SetError("Logic error: No joysticks available");
+    return (-1);
+}
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+{
+    return;
+}
+
+/* Function to close a joystick after use */
+void
+SDL_SYS_JoystickClose(SDL_Joystick * joystick)
+{
+    return;
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void
+SDL_SYS_JoystickQuit(void)
+{
+    return;
+}
+
+#endif /* SDL_JOYSTICK_DUMMY || SDL_JOYSTICK_DISABLED */
+
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/iphoneos/SDLUIAccelerationDelegate.h

@@ -0,0 +1,44 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#import <UIKit/UIKit.h>
+#import <SDL_types.h>
+
+/* *INDENT-OFF* */
+@interface SDLUIAccelerationDelegate: NSObject <UIAccelerometerDelegate> {
+
+	UIAccelerationValue x, y, z;
+	BOOL isRunning;
+	BOOL hasNewData;
+	
+}
+
++(SDLUIAccelerationDelegate *)sharedDelegate;
+-(void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration;
+-(void)getLastOrientation:(Sint16 *)data;
+-(void)startup;
+-(void)shutdown;
+-(BOOL)isRunning;
+-(BOOL)hasNewData;
+-(void)setHasNewData:(BOOL)value;
+
+@end
+/* *INDENT-ON* */

thirdparty/SDL/src/joystick/iphoneos/SDLUIAccelerationDelegate.m

@@ -0,0 +1,141 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#import "SDLUIAccelerationDelegate.h"
+/* needed for SDL_IPHONE_MAX_GFORCE macro */
+#import "../../../include/SDL_config_iphoneos.h"
+
+static SDLUIAccelerationDelegate *sharedDelegate=nil;
+
+@implementation SDLUIAccelerationDelegate
+
+/*
+	Returns a shared instance of the SDLUIAccelerationDelegate, creating the shared delegate if it doesn't exist yet.
+*/
++(SDLUIAccelerationDelegate *)sharedDelegate {
+	if (sharedDelegate == nil) {
+		sharedDelegate = [[SDLUIAccelerationDelegate alloc] init];
+	}
+	return sharedDelegate;
+}
+/*
+	UIAccelerometerDelegate delegate method.  Invoked by the UIAccelerometer instance when it has new data for us.
+	We just take the data and mark that we have new data available so that the joystick system will pump it to the
+	events system when SDL_SYS_JoystickUpdate is called.
+*/	
+-(void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {
+		
+	x = acceleration.x;
+	y = acceleration.y;
+	z = acceleration.z;
+	
+	hasNewData = YES;	
+}
+/* 
+	getLastOrientation -- put last obtained accelerometer data into Sint16 array
+ 
+	Called from the joystick system when it needs the accelerometer data.
+	Function grabs the last data sent to the accelerometer and converts it 
+	from floating point to Sint16, which is what the joystick system expects.
+ 
+	To do the conversion, the data is first clamped onto the interval
+	[-SDL_IPHONE_MAX_G_FORCE, SDL_IPHONE_MAX_G_FORCE], then the data is multiplied
+	by MAX_SINT16 so that it is mapped to the full range of an Sint16.
+ 
+	You can customize the clamped range of this function by modifying the 
+	SDL_IPHONE_MAX_GFORCE macro in SDL_config_iphoneos.h.
+ 
+	Once converted to Sint16, the accelerometer data no longer has coherent units.
+	You can convert the data back to units of g-force by multiplying it 
+	in your application's code by SDL_IPHONE_MAX_GFORCE / 0x7FFF.
+ */
+-(void)getLastOrientation:(Sint16 *)data {
+
+	#define MAX_SINT16 0x7FFF	
+
+	/* clamp the data */
+	if (x > SDL_IPHONE_MAX_GFORCE) x = SDL_IPHONE_MAX_GFORCE;
+	else if (x < -SDL_IPHONE_MAX_GFORCE) x = -SDL_IPHONE_MAX_GFORCE;
+	if (y > SDL_IPHONE_MAX_GFORCE) y = SDL_IPHONE_MAX_GFORCE;
+	else if (y < -SDL_IPHONE_MAX_GFORCE) y = -SDL_IPHONE_MAX_GFORCE;
+	if (z > SDL_IPHONE_MAX_GFORCE) z = SDL_IPHONE_MAX_GFORCE;
+	else if (z < -SDL_IPHONE_MAX_GFORCE) z = -SDL_IPHONE_MAX_GFORCE;
+	
+	/* pass in data mapped to range of SInt16 */
+	data[0] = (x / SDL_IPHONE_MAX_GFORCE) * MAX_SINT16;
+	data[1] = (y / SDL_IPHONE_MAX_GFORCE) * MAX_SINT16;
+	data[2] = (z / SDL_IPHONE_MAX_GFORCE) * MAX_SINT16;
+
+}
+
+/*
+	Initialize SDLUIAccelerationDelegate.  Since we don't have any data yet,
+	just set our last received data to zero, and indicate we don't have any;
+*/
+-(id)init {
+	self = [super init];
+	x = y = z = 0.0;
+	hasNewData = NO;
+	return self;
+}
+
+-(void)dealloc {
+	sharedDelegate = nil;
+	[self shutdown];
+	[super dealloc];
+}
+
+/*
+	Lets our delegate start receiving accelerometer updates.
+*/
+-(void)startup {
+	[UIAccelerometer sharedAccelerometer].delegate = self;
+	isRunning = YES;
+}
+/*
+	Stops our delegate from receiving accelerometer updates.
+*/
+-(void)shutdown {
+	if ([UIAccelerometer sharedAccelerometer].delegate == self) {
+		[UIAccelerometer sharedAccelerometer].delegate = nil;
+	}
+	isRunning = NO;
+}
+/*
+	Our we currently receiving accelerometer updates?
+*/
+-(BOOL)isRunning {
+	return isRunning;
+}
+/*
+	Do we have any data that hasn't been pumped into SDL's event system?
+*/
+-(BOOL)hasNewData {
+	return hasNewData;
+}
+/*
+	When the joystick system grabs the new data, it sets this to NO.
+*/
+-(void)setHasNewData:(BOOL)value {
+	hasNewData = value;
+}
+
+@end

thirdparty/SDL/src/joystick/iphoneos/SDL_sysjoystick.m

@@ -0,0 +1,124 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+/* This is the system specific header for the SDL joystick API */
+
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+#import "SDLUIAccelerationDelegate.h"
+
+const char *accelerometerName = "iPhone accelerometer";
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks.  Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+int
+SDL_SYS_JoystickInit(void)
+{
+    SDL_numjoysticks = 1;
+    return (1);
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *
+SDL_SYS_JoystickName(int index)
+{
+	switch(index) {
+		case 0:
+			return accelerometerName;
+		default:
+			SDL_SetError("No joystick available with that index");
+			return NULL;
+	}
+}
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+int
+SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
+{
+	if (joystick->index == 0) {
+		joystick->naxes = 3;
+		joystick->nhats = 0;
+		joystick->nballs = 0;
+		joystick->nbuttons = 0;
+		joystick->name  = accelerometerName;
+		[[SDLUIAccelerationDelegate sharedDelegate] startup];
+		return 0;
+	}
+	else {
+		SDL_SetError("No joystick available with that index");
+		return (-1);
+	}
+	
+}
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+{
+	
+	Sint16 orientation[3];
+	
+	if ([[SDLUIAccelerationDelegate sharedDelegate] hasNewData]) {
+	
+		[[SDLUIAccelerationDelegate sharedDelegate] getLastOrientation: orientation];
+		[[SDLUIAccelerationDelegate sharedDelegate] setHasNewData: NO];
+		
+		SDL_PrivateJoystickAxis(joystick, 0, orientation[0]);
+		SDL_PrivateJoystickAxis(joystick, 1, orientation[1]);
+		SDL_PrivateJoystickAxis(joystick, 2, orientation[2]);
+
+	}
+	
+    return;
+}
+
+/* Function to close a joystick after use */
+void
+SDL_SYS_JoystickClose(SDL_Joystick * joystick)
+{
+	if (joystick->index == 0 && [[SDLUIAccelerationDelegate sharedDelegate] isRunning]) {
+		[[SDLUIAccelerationDelegate sharedDelegate] shutdown];
+	}
+	SDL_SetError("No joystick open with that index");
+
+    return;
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void
+SDL_SYS_JoystickQuit(void)
+{
+    return;
+}
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/linux/SDL_sysjoystick_c.h

@@ -0,0 +1,54 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#if SDL_INPUT_LINUXEV
+#include <linux/input.h>
+#endif
+
+/* The private structure used to keep track of a joystick */
+struct joystick_hwdata
+{
+    int fd;
+    char *fname;                /* Used in haptic subsystem */
+
+    /* The current linux joystick driver maps hats to two axes */
+    struct hwdata_hat
+    {
+        int axis[2];
+    } *hats;
+    /* The current linux joystick driver maps balls to two axes */
+    struct hwdata_ball
+    {
+        int axis[2];
+    } *balls;
+
+    /* Support for the Linux 2.4 unified input interface */
+#if SDL_INPUT_LINUXEV
+    SDL_bool is_hid;
+    Uint8 key_map[KEY_MAX - BTN_MISC];
+    Uint8 abs_map[ABS_MAX];
+    struct axis_correct
+    {
+        int used;
+        int coef[3];
+    } abs_correct[ABS_MAX];
+#endif
+};

thirdparty/SDL/src/joystick/nds/SDL_sysjoystick.c

@@ -0,0 +1,171 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_NDS
+
+/* This is the system specific header for the SDL joystick API */
+#include <nds.h>
+#include <stdio.h>              /* For the definition of NULL */
+
+#include "SDL_error.h"
+#include "SDL_events.h"
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+
+#include "../../video/nds/SDL_ndsevents_c.h"
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks.  Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+int
+SDL_SYS_JoystickInit(void)
+{
+    SDL_numjoysticks = 1;
+    return (1);
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *
+SDL_SYS_JoystickName(int index)
+{
+    if (!index)
+        return "NDS builtin joypad";
+    SDL_SetError("No joystick available with that index");
+    return (NULL);
+}
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+int
+SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
+{
+    joystick->nbuttons = 8;
+    joystick->nhats = 0;
+    joystick->nballs = 0;
+    joystick->naxes = 2;
+    return 0;
+}
+
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+    void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+{
+    u32 keysd, keysu;
+    int magnitude = 16384;
+    
+        /*scanKeys(); - this is done in PumpEvents, because touch uses it too */ 
+        keysd = keysDown();
+    keysu = keysUp();
+
+    if ((keysd & KEY_UP)) {
+        SDL_PrivateJoystickAxis(joystick, 1, -magnitude);
+    }
+    if ((keysd & KEY_DOWN)) {
+        SDL_PrivateJoystickAxis(joystick, 1, magnitude);
+    }
+    if ((keysd & KEY_LEFT)) {
+        SDL_PrivateJoystickAxis(joystick, 0, -magnitude);
+    }
+    if ((keysd & KEY_RIGHT)) {
+        SDL_PrivateJoystickAxis(joystick, 0, magnitude);
+    }
+    if ((keysu & (KEY_UP | KEY_DOWN))) {
+        SDL_PrivateJoystickAxis(joystick, 1, 0);
+    }
+    if ((keysu & (KEY_LEFT | KEY_RIGHT))) {
+        SDL_PrivateJoystickAxis(joystick, 0, 0);
+    }
+    if ((keysd & KEY_A)) {
+        SDL_PrivateJoystickButton(joystick, 0, SDL_PRESSED);
+    }
+    if ((keysd & KEY_B)) {
+        SDL_PrivateJoystickButton(joystick, 1, SDL_PRESSED);
+    }
+    if ((keysd & KEY_X)) {
+        SDL_PrivateJoystickButton(joystick, 2, SDL_PRESSED);
+    }
+    if ((keysd & KEY_Y)) {
+        SDL_PrivateJoystickButton(joystick, 3, SDL_PRESSED);
+    }
+    if ((keysd & KEY_L)) {
+        SDL_PrivateJoystickButton(joystick, 4, SDL_PRESSED);
+    }
+    if ((keysd & KEY_R)) {
+        SDL_PrivateJoystickButton(joystick, 5, SDL_PRESSED);
+    }
+    if ((keysd & KEY_SELECT)) {
+        SDL_PrivateJoystickButton(joystick, 6, SDL_PRESSED);
+    }
+    if ((keysd & KEY_START)) {
+        SDL_PrivateJoystickButton(joystick, 7, SDL_PRESSED);
+    }
+    if ((keysu & KEY_A)) {
+        SDL_PrivateJoystickButton(joystick, 0, SDL_RELEASED);
+    }
+    if ((keysu & KEY_B)) {
+        SDL_PrivateJoystickButton(joystick, 1, SDL_RELEASED);
+    }
+    if ((keysu & KEY_X)) {
+        SDL_PrivateJoystickButton(joystick, 2, SDL_RELEASED);
+    }
+    if ((keysu & KEY_Y)) {
+        SDL_PrivateJoystickButton(joystick, 3, SDL_RELEASED);
+    }
+    if ((keysu & KEY_L)) {
+        SDL_PrivateJoystickButton(joystick, 4, SDL_RELEASED);
+    }
+    if ((keysu & KEY_R)) {
+        SDL_PrivateJoystickButton(joystick, 5, SDL_RELEASED);
+    }
+    if ((keysu & KEY_SELECT)) {
+        SDL_PrivateJoystickButton(joystick, 6, SDL_RELEASED);
+    }
+    if ((keysu & KEY_START)) {
+        SDL_PrivateJoystickButton(joystick, 7, SDL_RELEASED);
+    }
+}
+
+/* Function to close a joystick after use */
+void
+SDL_SYS_JoystickClose(SDL_Joystick * joystick)
+{
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void
+SDL_SYS_JoystickQuit(void)
+{
+}
+
+#endif /* SDL_JOYSTICK_NDS */

thirdparty/SDL/src/joystick/windows/SDL_dxjoystick.c

@@ -0,0 +1,811 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_DINPUT
+
+/* DirectInput joystick driver; written by Glenn Maynard, based on Andrei de
+ * A. Formiga's WINMM driver. 
+ *
+ * Hats and sliders are completely untested; the app I'm writing this for mostly
+ * doesn't use them and I don't own any joysticks with them. 
+ *
+ * We don't bother to use event notification here.  It doesn't seem to work
+ * with polled devices, and it's fine to call IDirectInputDevice2_GetDeviceData and
+ * let it return 0 events. */
+
+#include "SDL_error.h"
+#include "SDL_events.h"
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+#define INITGUID /* Only set here, if set twice will cause mingw32 to break. */
+#include "SDL_dxjoystick_c.h"
+
+
+#ifndef DIDFT_OPTIONAL
+#define DIDFT_OPTIONAL		0x80000000
+#endif
+
+
+#define INPUT_QSIZE	32      /* Buffer up to 32 input messages */
+#define MAX_JOYSTICKS	8
+#define AXIS_MIN	-32768  /* minimum value for axis coordinate */
+#define AXIS_MAX	32767   /* maximum value for axis coordinate */
+#define JOY_AXIS_THRESHOLD	(((AXIS_MAX)-(AXIS_MIN))/100)   /* 1% motion */
+
+/* external variables referenced. */
+extern HWND SDL_HelperWindow;
+
+
+/* local variables */
+static LPDIRECTINPUT dinput = NULL;
+extern HRESULT(WINAPI * DInputCreate) (HINSTANCE hinst, DWORD dwVersion,
+                                       LPDIRECTINPUT * ppDI,
+                                       LPUNKNOWN punkOuter);
+static DIDEVICEINSTANCE SYS_Joystick[MAX_JOYSTICKS];    /* array to hold joystick ID values */
+static char *SYS_JoystickNames[MAX_JOYSTICKS];
+static int SYS_NumJoysticks;
+static HINSTANCE DInputDLL = NULL;
+
+
+/* local prototypes */
+static void SetDIerror(const char *function, HRESULT code);
+static BOOL CALLBACK EnumJoysticksCallback(const DIDEVICEINSTANCE *
+                                           pdidInstance, VOID * pContext);
+static BOOL CALLBACK EnumDevObjectsCallback(LPCDIDEVICEOBJECTINSTANCE dev,
+                                            LPVOID pvRef);
+static Uint8 TranslatePOV(DWORD value);
+static int SDL_PrivateJoystickAxis_Int(SDL_Joystick * joystick, Uint8 axis,
+                                       Sint16 value);
+static int SDL_PrivateJoystickHat_Int(SDL_Joystick * joystick, Uint8 hat,
+                                      Uint8 value);
+static int SDL_PrivateJoystickButton_Int(SDL_Joystick * joystick,
+                                         Uint8 button, Uint8 state);
+
+/* Taken from Wine - Thanks! */
+DIOBJECTDATAFORMAT dfDIJoystick2[] = {
+  { &GUID_XAxis,DIJOFS_X,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_YAxis,DIJOFS_Y,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_ZAxis,DIJOFS_Z,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RxAxis,DIJOFS_RX,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RyAxis,DIJOFS_RY,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RzAxis,DIJOFS_RZ,DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_Slider,DIJOFS_SLIDER(0),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_Slider,DIJOFS_SLIDER(1),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_POV,DIJOFS_POV(0),DIDFT_OPTIONAL|DIDFT_POV|DIDFT_ANYINSTANCE,0},
+  { &GUID_POV,DIJOFS_POV(1),DIDFT_OPTIONAL|DIDFT_POV|DIDFT_ANYINSTANCE,0},
+  { &GUID_POV,DIJOFS_POV(2),DIDFT_OPTIONAL|DIDFT_POV|DIDFT_ANYINSTANCE,0},
+  { &GUID_POV,DIJOFS_POV(3),DIDFT_OPTIONAL|DIDFT_POV|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(0),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(1),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(2),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(3),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(4),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(5),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(6),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(7),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(8),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(9),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(10),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(11),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(12),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(13),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(14),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(15),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(16),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(17),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(18),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(19),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(20),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(21),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(22),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(23),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(24),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(25),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(26),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(27),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(28),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(29),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(30),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(31),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(32),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(33),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(34),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(35),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(36),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(37),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(38),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(39),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(40),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(41),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(42),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(43),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(44),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(45),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(46),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(47),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(48),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(49),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(50),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(51),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(52),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(53),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(54),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(55),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(56),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(57),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(58),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(59),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(60),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(61),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(62),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(63),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(64),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(65),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(66),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(67),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(68),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(69),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(70),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(71),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(72),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(73),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(74),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(75),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(76),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(77),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(78),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(79),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(80),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(81),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(82),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(83),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(84),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(85),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(86),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(87),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(88),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(89),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(90),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(91),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(92),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(93),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(94),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(95),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(96),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(97),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(98),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(99),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(100),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(101),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(102),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(103),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(104),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(105),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(106),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(107),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(108),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(109),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(110),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(111),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(112),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(113),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(114),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(115),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(116),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(117),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(118),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(119),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(120),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(121),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(122),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(123),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(124),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(125),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(126),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { NULL,DIJOFS_BUTTON(127),DIDFT_OPTIONAL|DIDFT_BUTTON|DIDFT_ANYINSTANCE,0},
+  { &GUID_XAxis,FIELD_OFFSET(DIJOYSTATE2,lVX),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_YAxis,FIELD_OFFSET(DIJOYSTATE2,lVY),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_ZAxis,FIELD_OFFSET(DIJOYSTATE2,lVZ),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RxAxis,FIELD_OFFSET(DIJOYSTATE2,lVRx),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RyAxis,FIELD_OFFSET(DIJOYSTATE2,lVRy),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RzAxis,FIELD_OFFSET(DIJOYSTATE2,lVRz),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglVSlider[0]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglVSlider[1]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_XAxis,FIELD_OFFSET(DIJOYSTATE2,lAX),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_YAxis,FIELD_OFFSET(DIJOYSTATE2,lAY),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_ZAxis,FIELD_OFFSET(DIJOYSTATE2,lAZ),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RxAxis,FIELD_OFFSET(DIJOYSTATE2,lARx),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RyAxis,FIELD_OFFSET(DIJOYSTATE2,lARy),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RzAxis,FIELD_OFFSET(DIJOYSTATE2,lARz),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglASlider[0]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglASlider[1]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_XAxis,FIELD_OFFSET(DIJOYSTATE2,lFX),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_YAxis,FIELD_OFFSET(DIJOYSTATE2,lFY),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_ZAxis,FIELD_OFFSET(DIJOYSTATE2,lFZ),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RxAxis,FIELD_OFFSET(DIJOYSTATE2,lFRx),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RyAxis,FIELD_OFFSET(DIJOYSTATE2,lFRy),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_RzAxis,FIELD_OFFSET(DIJOYSTATE2,lFRz),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglFSlider[0]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+  { &GUID_Slider,FIELD_OFFSET(DIJOYSTATE2,rglFSlider[1]),DIDFT_OPTIONAL|DIDFT_AXIS|DIDFT_ANYINSTANCE,0},
+};
+
+const DIDATAFORMAT c_dfDIJoystick2 = {
+    sizeof(DIDATAFORMAT),
+    sizeof(DIOBJECTDATAFORMAT),
+    DIDF_ABSAXIS,
+    sizeof(DIJOYSTATE2),
+    SDL_arraysize(dfDIJoystick2),
+    dfDIJoystick2
+};
+
+
+/* Convert a DirectInput return code to a text message */
+static void
+SetDIerror(const char *function, HRESULT code)
+{
+    /*
+    SDL_SetError("%s() [%s]: %s", function,
+                 DXGetErrorString9A(code), DXGetErrorDescription9A(code));
+     */
+    SDL_SetError("%s() DirectX error %d", function, code);
+}
+
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks.  Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+int
+SDL_SYS_JoystickInit(void)
+{
+    HRESULT result;
+    HINSTANCE instance;
+
+    SYS_NumJoysticks = 0;
+
+    result = CoInitialize(NULL);
+    if (FAILED(result)) {
+        SetDIerror("CoInitialize", result);
+        return (-1);
+    }
+
+    result = CoCreateInstance(&CLSID_DirectInput, NULL, CLSCTX_INPROC_SERVER,
+                              &IID_IDirectInput, (LPVOID)&dinput);
+
+    if (FAILED(result)) {
+        SetDIerror("CoCreateInstance", result);
+        return (-1);
+    }
+
+    /* Because we used CoCreateInstance, we need to Initialize it, first. */
+    instance = GetModuleHandle(NULL);
+    if (instance == NULL) {
+        SDL_SetError("GetModuleHandle() failed with error code %d.",
+                     GetLastError());
+        return (-1);
+    }
+    result = IDirectInput_Initialize(dinput, instance, DIRECTINPUT_VERSION);
+
+    if (FAILED(result)) {
+        SetDIerror("IDirectInput::Initialize", result);
+        return (-1);
+    }
+
+    /* Look for joysticks, wheels, head trackers, gamepads, etc.. */
+    result = IDirectInput_EnumDevices(dinput,
+                                      DIDEVTYPE_JOYSTICK,
+                                      EnumJoysticksCallback,
+                                      NULL, DIEDFL_ATTACHEDONLY);
+
+    return SYS_NumJoysticks;
+}
+
+static BOOL CALLBACK
+EnumJoysticksCallback(const DIDEVICEINSTANCE * pdidInstance, VOID * pContext)
+{
+    SDL_memcpy(&SYS_Joystick[SYS_NumJoysticks], pdidInstance,
+               sizeof(DIDEVICEINSTANCE));
+    SYS_JoystickNames[SYS_NumJoysticks] = WIN_StringToUTF8(pdidInstance->tszProductName);
+    SYS_NumJoysticks++;
+
+    if (SYS_NumJoysticks >= MAX_JOYSTICKS)
+        return DIENUM_STOP;
+
+    return DIENUM_CONTINUE;
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *
+SDL_SYS_JoystickName(int index)
+{
+    return SYS_JoystickNames[index];
+}
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+int
+SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
+{
+    HRESULT result;
+    LPDIRECTINPUTDEVICE device;
+    DIPROPDWORD dipdw;
+
+    SDL_memset(&dipdw, 0, sizeof(DIPROPDWORD));
+    dipdw.diph.dwSize = sizeof(DIPROPDWORD);
+    dipdw.diph.dwHeaderSize = sizeof(DIPROPHEADER);
+
+
+    /* allocate memory for system specific hardware data */
+    joystick->hwdata =
+        (struct joystick_hwdata *) SDL_malloc(sizeof(struct joystick_hwdata));
+    if (joystick->hwdata == NULL) {
+        SDL_OutOfMemory();
+        return (-1);
+    }
+    SDL_memset(joystick->hwdata, 0, sizeof(struct joystick_hwdata));
+    joystick->hwdata->buffered = 1;
+    joystick->hwdata->Capabilities.dwSize = sizeof(DIDEVCAPS);
+
+    result =
+        IDirectInput_CreateDevice(dinput,
+                                  &SYS_Joystick[joystick->index].
+                                  guidInstance, &device, NULL);
+    if (FAILED(result)) {
+        SetDIerror("IDirectInput::CreateDevice", result);
+        return (-1);
+    }
+
+    /* Now get the IDirectInputDevice2 interface, instead. */
+    result = IDirectInputDevice_QueryInterface(device,
+                                               &IID_IDirectInputDevice2,
+                                               (LPVOID *) & joystick->
+                                               hwdata->InputDevice);
+    /* We are done with this object.  Use the stored one from now on. */
+    IDirectInputDevice_Release(device);
+
+    if (FAILED(result)) {
+        SetDIerror("IDirectInputDevice::QueryInterface", result);
+        return (-1);
+    }
+
+    /* Aquire shared access. Exclusive access is required for forces,
+     * though. */
+    result =
+        IDirectInputDevice2_SetCooperativeLevel(joystick->hwdata->
+                                                InputDevice, SDL_HelperWindow,
+                                                DISCL_EXCLUSIVE |
+                                                DISCL_BACKGROUND);
+    if (FAILED(result)) {
+        SetDIerror("IDirectInputDevice2::SetCooperativeLevel", result);
+        return (-1);
+    }
+
+    /* Use the extended data structure: DIJOYSTATE2. */
+    result =
+        IDirectInputDevice2_SetDataFormat(joystick->hwdata->InputDevice,
+                                          &c_dfDIJoystick2);
+    if (FAILED(result)) {
+        SetDIerror("IDirectInputDevice2::SetDataFormat", result);
+        return (-1);
+    }
+
+    /* Get device capabilities */
+    result =
+        IDirectInputDevice2_GetCapabilities(joystick->hwdata->InputDevice,
+                                            &joystick->hwdata->Capabilities);
+
+    if (FAILED(result)) {
+        SetDIerror("IDirectInputDevice2::GetCapabilities", result);
+        return (-1);
+    }
+
+    /* Force capable? */
+    if (joystick->hwdata->Capabilities.dwFlags & DIDC_FORCEFEEDBACK) {
+
+        result = IDirectInputDevice2_Acquire(joystick->hwdata->InputDevice);
+
+        if (FAILED(result)) {
+            SetDIerror("IDirectInputDevice2::Acquire", result);
+            return (-1);
+        }
+
+        /* reset all accuators. */
+        result =
+            IDirectInputDevice2_SendForceFeedbackCommand(joystick->hwdata->
+                                                         InputDevice,
+                                                         DISFFC_RESET);
+
+        /* Not necessarily supported, ignore if not supported.
+        if (FAILED(result)) {
+            SetDIerror("IDirectInputDevice2::SendForceFeedbackCommand",
+                       result);
+            return (-1);
+        }
+        */
+
+        result = IDirectInputDevice2_Unacquire(joystick->hwdata->InputDevice);
+
+        if (FAILED(result)) {
+            SetDIerror("IDirectInputDevice2::Unacquire", result);
+            return (-1);
+        }
+
+        /* Turn on auto-centering for a ForceFeedback device (until told
+         * otherwise). */
+        dipdw.diph.dwObj = 0;
+        dipdw.diph.dwHow = DIPH_DEVICE;
+        dipdw.dwData = DIPROPAUTOCENTER_ON;
+
+        result =
+            IDirectInputDevice2_SetProperty(joystick->hwdata->InputDevice,
+                                            DIPROP_AUTOCENTER, &dipdw.diph);
+
+        /* Not necessarily supported, ignore if not supported.
+        if (FAILED(result)) {
+            SetDIerror("IDirectInputDevice2::SetProperty", result);
+            return (-1);
+        }
+        */
+    }
+
+    /* What buttons and axes does it have? */
+    IDirectInputDevice2_EnumObjects(joystick->hwdata->InputDevice,
+                                    EnumDevObjectsCallback, joystick,
+                                    DIDFT_BUTTON | DIDFT_AXIS | DIDFT_POV);
+
+    dipdw.diph.dwObj = 0;
+    dipdw.diph.dwHow = DIPH_DEVICE;
+    dipdw.dwData = INPUT_QSIZE;
+
+    /* Set the buffer size */
+    result =
+        IDirectInputDevice2_SetProperty(joystick->hwdata->InputDevice,
+                                        DIPROP_BUFFERSIZE, &dipdw.diph);
+
+    if (result == DI_POLLEDDEVICE) {
+        /* This device doesn't support buffering, so we're forced
+         * to use less reliable polling. */
+        joystick->hwdata->buffered = 0;
+    } else if (FAILED(result)) {
+        SetDIerror("IDirectInputDevice2::SetProperty", result);
+        return (-1);
+    }
+
+    return (0);
+}
+
+static BOOL CALLBACK
+EnumDevObjectsCallback(LPCDIDEVICEOBJECTINSTANCE dev, LPVOID pvRef)
+{
+    SDL_Joystick *joystick = (SDL_Joystick *) pvRef;
+    HRESULT result;
+    input_t *in = &joystick->hwdata->Inputs[joystick->hwdata->NumInputs];
+
+    in->ofs = dev->dwOfs;
+
+    if (dev->dwType & DIDFT_BUTTON) {
+        in->type = BUTTON;
+        in->num = joystick->nbuttons;
+        joystick->nbuttons++;
+    } else if (dev->dwType & DIDFT_POV) {
+        in->type = HAT;
+        in->num = joystick->nhats;
+        joystick->nhats++;
+    } else if (dev->dwType & DIDFT_AXIS) {
+        DIPROPRANGE diprg;
+        DIPROPDWORD dilong;
+
+        in->type = AXIS;
+        in->num = joystick->naxes;
+
+        diprg.diph.dwSize = sizeof(diprg);
+        diprg.diph.dwHeaderSize = sizeof(diprg.diph);
+        diprg.diph.dwObj = dev->dwOfs;
+        diprg.diph.dwHow = DIPH_BYOFFSET;
+        diprg.lMin = AXIS_MIN;
+        diprg.lMax = AXIS_MAX;
+
+        result =
+            IDirectInputDevice2_SetProperty(joystick->hwdata->InputDevice,
+                                            DIPROP_RANGE, &diprg.diph);
+        if (FAILED(result)) {
+            return DIENUM_CONTINUE;     /* don't use this axis */
+        }
+
+        /* Set dead zone to 0. */
+        dilong.diph.dwSize = sizeof(dilong);
+        dilong.diph.dwHeaderSize = sizeof(dilong.diph);
+        dilong.diph.dwObj = dev->dwOfs;
+        dilong.diph.dwHow = DIPH_BYOFFSET;
+        dilong.dwData = 0;
+        result =
+            IDirectInputDevice2_SetProperty(joystick->hwdata->InputDevice,
+                                            DIPROP_DEADZONE, &dilong.diph);
+        if (FAILED(result)) {
+            return DIENUM_CONTINUE;     /* don't use this axis */
+        }
+
+        joystick->naxes++;
+    } else {
+        /* not supported at this time */
+        return DIENUM_CONTINUE;
+    }
+
+    joystick->hwdata->NumInputs++;
+
+    if (joystick->hwdata->NumInputs == MAX_INPUTS) {
+        return DIENUM_STOP;     /* too many */
+    }
+
+    return DIENUM_CONTINUE;
+}
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+void
+SDL_SYS_JoystickUpdate_Polled(SDL_Joystick * joystick)
+{
+    DIJOYSTATE2 state;
+    HRESULT result;
+    int i;
+
+    result =
+        IDirectInputDevice2_GetDeviceState(joystick->hwdata->InputDevice,
+                                           sizeof(DIJOYSTATE2), &state);
+    if (result == DIERR_INPUTLOST || result == DIERR_NOTACQUIRED) {
+        IDirectInputDevice2_Acquire(joystick->hwdata->InputDevice);
+        result =
+            IDirectInputDevice2_GetDeviceState(joystick->hwdata->InputDevice,
+                                               sizeof(DIJOYSTATE2), &state);
+    }
+
+    /* Set each known axis, button and POV. */
+    for (i = 0; i < joystick->hwdata->NumInputs; ++i) {
+        const input_t *in = &joystick->hwdata->Inputs[i];
+
+        switch (in->type) {
+        case AXIS:
+            switch (in->ofs) {
+            case DIJOFS_X:
+                SDL_PrivateJoystickAxis_Int(joystick, in->num,
+                                            (Sint16) state.lX);
+                break;
+            case DIJOFS_Y:
+                SDL_PrivateJoystickAxis_Int(joystick, in->num,
+                                            (Sint16) state.lY);
+                break;
+            case DIJOFS_Z:
+                SDL_PrivateJoystickAxis_Int(joystick, in->num,
+                                            (Sint16) state.lZ);
+                break;
+            case DIJOFS_RX:
+                SDL_PrivateJoystickAxis_Int(joystick, in->num,
+                                            (Sint16) state.lRx);
+                break;
+            case DIJOFS_RY:
+                SDL_PrivateJoystickAxis_Int(joystick, in->num,
+                                            (Sint16) state.lRy);
+                break;
+            case DIJOFS_RZ:
+                SDL_PrivateJoystickAxis_Int(joystick, in->num,
+                                            (Sint16) state.lRz);
+                break;
+            case DIJOFS_SLIDER(0):
+                SDL_PrivateJoystickAxis_Int(joystick, in->num,
+                                            (Sint16) state.rglSlider[0]);
+                break;
+            case DIJOFS_SLIDER(1):
+                SDL_PrivateJoystickAxis_Int(joystick, in->num,
+                                            (Sint16) state.rglSlider[1]);
+                break;
+            }
+
+            break;
+
+        case BUTTON:
+            SDL_PrivateJoystickButton_Int(joystick, in->num,
+                                          (Uint8) (state.
+                                                   rgbButtons[in->ofs -
+                                                              DIJOFS_BUTTON0]
+                                                   ? SDL_PRESSED :
+                                                   SDL_RELEASED));
+            break;
+        case HAT:
+            {
+                Uint8 pos = TranslatePOV(state.rgdwPOV[in->ofs -
+                                                       DIJOFS_POV(0)]);
+                SDL_PrivateJoystickHat_Int(joystick, in->num, pos);
+                break;
+            }
+        }
+    }
+}
+
+void
+SDL_SYS_JoystickUpdate_Buffered(SDL_Joystick * joystick)
+{
+    int i;
+    HRESULT result;
+    DWORD numevents;
+    DIDEVICEOBJECTDATA evtbuf[INPUT_QSIZE];
+
+    numevents = INPUT_QSIZE;
+    result =
+        IDirectInputDevice2_GetDeviceData(joystick->hwdata->InputDevice,
+                                          sizeof(DIDEVICEOBJECTDATA), evtbuf,
+                                          &numevents, 0);
+    if (result == DIERR_INPUTLOST || result == DIERR_NOTACQUIRED) {
+        IDirectInputDevice2_Acquire(joystick->hwdata->InputDevice);
+        result =
+            IDirectInputDevice2_GetDeviceData(joystick->hwdata->InputDevice,
+                                              sizeof(DIDEVICEOBJECTDATA),
+                                              evtbuf, &numevents, 0);
+    }
+
+    /* Handle the events or punt */
+    if (FAILED(result))
+        return;
+
+    for (i = 0; i < (int) numevents; ++i) {
+        int j;
+
+        for (j = 0; j < joystick->hwdata->NumInputs; ++j) {
+            const input_t *in = &joystick->hwdata->Inputs[j];
+
+            if (evtbuf[i].dwOfs != in->ofs)
+                continue;
+
+            switch (in->type) {
+            case AXIS:
+                SDL_PrivateJoystickAxis(joystick, in->num,
+                                        (Sint16) evtbuf[i].dwData);
+                break;
+            case BUTTON:
+                SDL_PrivateJoystickButton(joystick, in->num,
+                                          (Uint8) (evtbuf[i].
+                                                   dwData ? SDL_PRESSED :
+                                                   SDL_RELEASED));
+                break;
+            case HAT:
+                {
+                    Uint8 pos = TranslatePOV(evtbuf[i].dwData);
+                    SDL_PrivateJoystickHat(joystick, in->num, pos);
+                }
+            }
+        }
+    }
+}
+
+
+static Uint8
+TranslatePOV(DWORD value)
+{
+    const int HAT_VALS[] = {
+        SDL_HAT_UP,
+        SDL_HAT_UP | SDL_HAT_RIGHT,
+        SDL_HAT_RIGHT,
+        SDL_HAT_DOWN | SDL_HAT_RIGHT,
+        SDL_HAT_DOWN,
+        SDL_HAT_DOWN | SDL_HAT_LEFT,
+        SDL_HAT_LEFT,
+        SDL_HAT_UP | SDL_HAT_LEFT
+    };
+
+    if (LOWORD(value) == 0xFFFF)
+        return SDL_HAT_CENTERED;
+
+    /* Round the value up: */
+    value += 4500 / 2;
+    value %= 36000;
+    value /= 4500;
+
+    if (value >= 8)
+        return SDL_HAT_CENTERED;        /* shouldn't happen */
+
+    return HAT_VALS[value];
+}
+
+/* SDL_PrivateJoystick* doesn't discard duplicate events, so we need to
+ * do it. */
+static int
+SDL_PrivateJoystickAxis_Int(SDL_Joystick * joystick, Uint8 axis, Sint16 value)
+{
+    if (joystick->axes[axis] != value)
+        return SDL_PrivateJoystickAxis(joystick, axis, value);
+    return 0;
+}
+
+static int
+SDL_PrivateJoystickHat_Int(SDL_Joystick * joystick, Uint8 hat, Uint8 value)
+{
+    if (joystick->hats[hat] != value)
+        return SDL_PrivateJoystickHat(joystick, hat, value);
+    return 0;
+}
+
+static int
+SDL_PrivateJoystickButton_Int(SDL_Joystick * joystick, Uint8 button,
+                              Uint8 state)
+{
+    if (joystick->buttons[button] != state)
+        return SDL_PrivateJoystickButton(joystick, button, state);
+    return 0;
+}
+
+void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+{
+    HRESULT result;
+
+    result = IDirectInputDevice2_Poll(joystick->hwdata->InputDevice);
+    if (result == DIERR_INPUTLOST || result == DIERR_NOTACQUIRED) {
+        IDirectInputDevice2_Acquire(joystick->hwdata->InputDevice);
+        IDirectInputDevice2_Poll(joystick->hwdata->InputDevice);
+    }
+
+    if (joystick->hwdata->buffered)
+        SDL_SYS_JoystickUpdate_Buffered(joystick);
+    else
+        SDL_SYS_JoystickUpdate_Polled(joystick);
+}
+
+/* Function to close a joystick after use */
+void
+SDL_SYS_JoystickClose(SDL_Joystick * joystick)
+{
+    IDirectInputDevice2_Unacquire(joystick->hwdata->InputDevice);
+    IDirectInputDevice2_Release(joystick->hwdata->InputDevice);
+
+    if (joystick->hwdata != NULL) {
+        /* free system specific hardware data */
+        SDL_free(joystick->hwdata);
+    }
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void
+SDL_SYS_JoystickQuit(void)
+{
+    int i;
+
+    for (i = 0; i < SDL_arraysize(SYS_JoystickNames); ++i) {
+        if (SYS_JoystickNames[i]) {
+            SDL_free(SYS_JoystickNames[i]);
+            SYS_JoystickNames[i] = NULL;
+        }
+    }
+
+    IDirectInput_Release(dinput);
+    dinput = NULL;
+}
+
+#endif /* SDL_JOYSTICK_DINPUT */
+
+/* vi: set ts=4 sw=4 expandtab: */

thirdparty/SDL/src/joystick/windows/SDL_dxjoystick_c.h

@@ -0,0 +1,71 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+#ifndef SDL_JOYSTICK_DINPUT_H
+
+/* DirectInput joystick driver; written by Glenn Maynard, based on Andrei de
+ * A. Formiga's WINMM driver. 
+ *
+ * Hats and sliders are completely untested; the app I'm writing this for mostly
+ * doesn't use them and I don't own any joysticks with them. 
+ *
+ * We don't bother to use event notification here.  It doesn't seem to work
+ * with polled devices, and it's fine to call IDirectInputDevice2_GetDeviceData and
+ * let it return 0 events. */
+
+#include "../../core/windows/SDL_windows.h"
+
+#define DIRECTINPUT_VERSION 0x0700      /* Need version 7 for force feedback. */
+#include <dinput.h>
+
+
+#define MAX_INPUTS	256     /* each joystick can have up to 256 inputs */
+
+
+/* local types */
+typedef enum Type
+{ BUTTON, AXIS, HAT } Type;
+
+typedef struct input_t
+{
+    /* DirectInput offset for this input type: */
+    DWORD ofs;
+
+    /* Button, axis or hat: */
+    Type type;
+
+    /* SDL input offset: */
+    Uint8 num;
+} input_t;
+
+/* The private structure used to keep track of a joystick */
+struct joystick_hwdata
+{
+    LPDIRECTINPUTDEVICE2 InputDevice;
+    DIDEVCAPS Capabilities;
+    int buffered;
+
+    input_t Inputs[MAX_INPUTS];
+    int NumInputs;
+};
+
+#endif /* SDL_JOYSTICK_DINPUT_H */

thirdparty/SDL/src/joystick/windows/SDL_mmjoystick.c

@@ -0,0 +1,426 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "SDL_config.h"
+
+#ifdef SDL_JOYSTICK_WINMM
+
+/* Win32 MultiMedia Joystick driver, contributed by Andrei de A. Formiga */
+
+#include "../../core/windows/SDL_windows.h"
+#include <mmsystem.h>
+#include <regstr.h>
+
+#include "SDL_events.h"
+#include "SDL_joystick.h"
+#include "../SDL_sysjoystick.h"
+#include "../SDL_joystick_c.h"
+
+#define MAX_JOYSTICKS	16
+#define MAX_AXES	6       /* each joystick can have up to 6 axes */
+#define MAX_BUTTONS	32      /* and 32 buttons                      */
+#define AXIS_MIN	-32768  /* minimum value for axis coordinate */
+#define AXIS_MAX	32767   /* maximum value for axis coordinate */
+/* limit axis to 256 possible positions to filter out noise */
+#define JOY_AXIS_THRESHOLD      (((AXIS_MAX)-(AXIS_MIN))/256)
+#define JOY_BUTTON_FLAG(n)	(1<<n)
+
+
+/* array to hold joystick ID values */
+static UINT SYS_JoystickID[MAX_JOYSTICKS];
+static JOYCAPS SYS_Joystick[MAX_JOYSTICKS];
+static char *SYS_JoystickName[MAX_JOYSTICKS];
+
+/* The private structure used to keep track of a joystick */
+struct joystick_hwdata
+{
+    /* joystick ID */
+    UINT id;
+
+    /* values used to translate device-specific coordinates into
+       SDL-standard ranges */
+    struct _transaxis
+    {
+        int offset;
+        float scale;
+    } transaxis[6];
+};
+
+/* Convert a Windows Multimedia API return code to a text message */
+static void SetMMerror(char *function, int code);
+
+
+static char *
+GetJoystickName(int index, const char *szRegKey)
+{
+    /* added 7/24/2004 by Eckhard Stolberg */
+    /*
+       see if there is a joystick for the current
+       index (1-16) listed in the registry
+     */
+    char *name = NULL;
+    HKEY hTopKey;
+    HKEY hKey;
+    DWORD regsize;
+    LONG regresult;
+    char regkey[256];
+    char regvalue[256];
+    char regname[256];
+
+    SDL_snprintf(regkey, SDL_arraysize(regkey), "%s\\%s\\%s",
+                 REGSTR_PATH_JOYCONFIG, szRegKey, REGSTR_KEY_JOYCURR);
+    hTopKey = HKEY_LOCAL_MACHINE;
+    regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey);
+    if (regresult != ERROR_SUCCESS) {
+        hTopKey = HKEY_CURRENT_USER;
+        regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey);
+    }
+    if (regresult != ERROR_SUCCESS) {
+        return NULL;
+    }
+
+    /* find the registry key name for the joystick's properties */
+    regsize = sizeof(regname);
+    SDL_snprintf(regvalue, SDL_arraysize(regvalue), "Joystick%d%s", index + 1,
+                 REGSTR_VAL_JOYOEMNAME);
+    regresult =
+        RegQueryValueExA(hKey, regvalue, 0, 0, (LPBYTE) regname, &regsize);
+    RegCloseKey(hKey);
+
+    if (regresult != ERROR_SUCCESS) {
+        return NULL;
+    }
+
+    /* open that registry key */
+    SDL_snprintf(regkey, SDL_arraysize(regkey), "%s\\%s", REGSTR_PATH_JOYOEM,
+                 regname);
+    regresult = RegOpenKeyExA(hTopKey, regkey, 0, KEY_READ, &hKey);
+    if (regresult != ERROR_SUCCESS) {
+        return NULL;
+    }
+
+    /* find the size for the OEM name text */
+    regsize = sizeof(regvalue);
+    regresult =
+        RegQueryValueExA(hKey, REGSTR_VAL_JOYOEMNAME, 0, 0, NULL, &regsize);
+    if (regresult == ERROR_SUCCESS) {
+        /* allocate enough memory for the OEM name text ... */
+        name = (char *) SDL_malloc(regsize);
+        if (name) {
+            /* ... and read it from the registry */
+            regresult = RegQueryValueExA(hKey,
+                                         REGSTR_VAL_JOYOEMNAME, 0, 0,
+                                         (LPBYTE) name, &regsize);
+        }
+    }
+    RegCloseKey(hKey);
+
+    return (name);
+}
+
+/* Function to scan the system for joysticks.
+ * This function should set SDL_numjoysticks to the number of available
+ * joysticks.  Joystick 0 should be the system default joystick.
+ * It should return 0, or -1 on an unrecoverable fatal error.
+ */
+int
+SDL_SYS_JoystickInit(void)
+{
+    int i;
+    int maxdevs;
+    int numdevs;
+    JOYINFOEX joyinfo;
+    JOYCAPS joycaps;
+    MMRESULT result;
+
+    /* Reset the joystick ID & name mapping tables */
+    for (i = 0; i < MAX_JOYSTICKS; ++i) {
+        SYS_JoystickID[i] = 0;
+        SYS_JoystickName[i] = NULL;
+    }
+
+    /* Loop over all potential joystick devices */
+    numdevs = 0;
+    maxdevs = joyGetNumDevs();
+    for (i = JOYSTICKID1; i < maxdevs && numdevs < MAX_JOYSTICKS; ++i) {
+
+        joyinfo.dwSize = sizeof(joyinfo);
+        joyinfo.dwFlags = JOY_RETURNALL;
+        result = joyGetPosEx(i, &joyinfo);
+        if (result == JOYERR_NOERROR) {
+            result = joyGetDevCaps(i, &joycaps, sizeof(joycaps));
+            if (result == JOYERR_NOERROR) {
+                SYS_JoystickID[numdevs] = i;
+                SYS_Joystick[numdevs] = joycaps;
+                SYS_JoystickName[numdevs] =
+                    GetJoystickName(i, joycaps.szRegKey);
+                numdevs++;
+            }
+        }
+    }
+    return (numdevs);
+}
+
+/* Function to get the device-dependent name of a joystick */
+const char *
+SDL_SYS_JoystickName(int index)
+{
+    if (SYS_JoystickName[index] != NULL) {
+        return (SYS_JoystickName[index]);
+    } else {
+        return (SYS_Joystick[index].szPname);
+    }
+}
+
+/* Function to open a joystick for use.
+   The joystick to open is specified by the index field of the joystick.
+   This should fill the nbuttons and naxes fields of the joystick structure.
+   It returns 0, or -1 if there is an error.
+ */
+int
+SDL_SYS_JoystickOpen(SDL_Joystick * joystick)
+{
+    int index, i;
+    int caps_flags[MAX_AXES - 2] =
+        { JOYCAPS_HASZ, JOYCAPS_HASR, JOYCAPS_HASU, JOYCAPS_HASV };
+    int axis_min[MAX_AXES], axis_max[MAX_AXES];
+
+
+    /* shortcut */
+    index = joystick->index;
+    axis_min[0] = SYS_Joystick[index].wXmin;
+    axis_max[0] = SYS_Joystick[index].wXmax;
+    axis_min[1] = SYS_Joystick[index].wYmin;
+    axis_max[1] = SYS_Joystick[index].wYmax;
+    axis_min[2] = SYS_Joystick[index].wZmin;
+    axis_max[2] = SYS_Joystick[index].wZmax;
+    axis_min[3] = SYS_Joystick[index].wRmin;
+    axis_max[3] = SYS_Joystick[index].wRmax;
+    axis_min[4] = SYS_Joystick[index].wUmin;
+    axis_max[4] = SYS_Joystick[index].wUmax;
+    axis_min[5] = SYS_Joystick[index].wVmin;
+    axis_max[5] = SYS_Joystick[index].wVmax;
+
+    /* allocate memory for system specific hardware data */
+    joystick->hwdata =
+        (struct joystick_hwdata *) SDL_malloc(sizeof(*joystick->hwdata));
+    if (joystick->hwdata == NULL) {
+        SDL_OutOfMemory();
+        return (-1);
+    }
+    SDL_memset(joystick->hwdata, 0, sizeof(*joystick->hwdata));
+
+    /* set hardware data */
+    joystick->hwdata->id = SYS_JoystickID[index];
+    for (i = 0; i < MAX_AXES; ++i) {
+        if ((i < 2) || (SYS_Joystick[index].wCaps & caps_flags[i - 2])) {
+            joystick->hwdata->transaxis[i].offset = AXIS_MIN - axis_min[i];
+            joystick->hwdata->transaxis[i].scale =
+                (float) (AXIS_MAX - AXIS_MIN) / (axis_max[i] - axis_min[i]);
+        } else {
+            joystick->hwdata->transaxis[i].offset = 0;
+            joystick->hwdata->transaxis[i].scale = 1.0; /* Just in case */
+        }
+    }
+
+    /* fill nbuttons, naxes, and nhats fields */
+    joystick->nbuttons = SYS_Joystick[index].wNumButtons;
+    joystick->naxes = SYS_Joystick[index].wNumAxes;
+    if (SYS_Joystick[index].wCaps & JOYCAPS_HASPOV) {
+        joystick->nhats = 1;
+    } else {
+        joystick->nhats = 0;
+    }
+    return (0);
+}
+
+static Uint8
+TranslatePOV(DWORD value)
+{
+    Uint8 pos;
+
+    pos = SDL_HAT_CENTERED;
+    if (value != JOY_POVCENTERED) {
+        if ((value > JOY_POVLEFT) || (value < JOY_POVRIGHT)) {
+            pos |= SDL_HAT_UP;
+        }
+        if ((value > JOY_POVFORWARD) && (value < JOY_POVBACKWARD)) {
+            pos |= SDL_HAT_RIGHT;
+        }
+        if ((value > JOY_POVRIGHT) && (value < JOY_POVLEFT)) {
+            pos |= SDL_HAT_DOWN;
+        }
+        if (value > JOY_POVBACKWARD) {
+            pos |= SDL_HAT_LEFT;
+        }
+    }
+    return (pos);
+}
+
+/* Function to update the state of a joystick - called as a device poll.
+ * This function shouldn't update the joystick structure directly,
+ * but instead should call SDL_PrivateJoystick*() to deliver events
+ * and update joystick device state.
+ */
+void
+SDL_SYS_JoystickUpdate(SDL_Joystick * joystick)
+{
+    MMRESULT result;
+    int i;
+    DWORD flags[MAX_AXES] = { JOY_RETURNX, JOY_RETURNY, JOY_RETURNZ,
+        JOY_RETURNR, JOY_RETURNU, JOY_RETURNV
+    };
+    DWORD pos[MAX_AXES];
+    struct _transaxis *transaxis;
+    int value, change;
+    JOYINFOEX joyinfo;
+
+    joyinfo.dwSize = sizeof(joyinfo);
+    joyinfo.dwFlags = JOY_RETURNALL | JOY_RETURNPOVCTS;
+    if (!joystick->hats) {
+        joyinfo.dwFlags &= ~(JOY_RETURNPOV | JOY_RETURNPOVCTS);
+    }
+    result = joyGetPosEx(joystick->hwdata->id, &joyinfo);
+    if (result != JOYERR_NOERROR) {
+        SetMMerror("joyGetPosEx", result);
+        return;
+    }
+
+    /* joystick motion events */
+    pos[0] = joyinfo.dwXpos;
+    pos[1] = joyinfo.dwYpos;
+    pos[2] = joyinfo.dwZpos;
+    pos[3] = joyinfo.dwRpos;
+    pos[4] = joyinfo.dwUpos;
+    pos[5] = joyinfo.dwVpos;
+
+    transaxis = joystick->hwdata->transaxis;
+    for (i = 0; i < joystick->naxes; i++) {
+        if (joyinfo.dwFlags & flags[i]) {
+            value =
+                (int) (((float) pos[i] +
+                        transaxis[i].offset) * transaxis[i].scale);
+            change = (value - joystick->axes[i]);
+            if ((change < -JOY_AXIS_THRESHOLD)
+                || (change > JOY_AXIS_THRESHOLD)) {
+                SDL_PrivateJoystickAxis(joystick, (Uint8) i, (Sint16) value);
+            }
+        }
+    }
+
+    /* joystick button events */
+    if (joyinfo.dwFlags & JOY_RETURNBUTTONS) {
+        for (i = 0; i < joystick->nbuttons; ++i) {
+            if (joyinfo.dwButtons & JOY_BUTTON_FLAG(i)) {
+                if (!joystick->buttons[i]) {
+                    SDL_PrivateJoystickButton(joystick, (Uint8) i,
+                                              SDL_PRESSED);
+                }
+            } else {
+                if (joystick->buttons[i]) {
+                    SDL_PrivateJoystickButton(joystick, (Uint8) i,
+                                              SDL_RELEASED);
+                }
+            }
+        }
+    }
+
+    /* joystick hat events */
+    if (joyinfo.dwFlags & JOY_RETURNPOV) {
+        Uint8 pos;
+
+        pos = TranslatePOV(joyinfo.dwPOV);
+        if (pos != joystick->hats[0]) {
+            SDL_PrivateJoystickHat(joystick, 0, pos);
+        }
+    }
+}
+
+/* Function to close a joystick after use */
+void
+SDL_SYS_JoystickClose(SDL_Joystick * joystick)
+{
+    if (joystick->hwdata != NULL) {
+        /* free system specific hardware data */
+        SDL_free(joystick->hwdata);
+        joystick->hwdata = NULL;
+    }
+}
+
+/* Function to perform any system-specific joystick related cleanup */
+void
+SDL_SYS_JoystickQuit(void)
+{
+    int i;
+    for (i = 0; i < MAX_JOYSTICKS; i++) {
+        if (SYS_JoystickName[i] != NULL) {
+            SDL_free(SYS_JoystickName[i]);
+            SYS_JoystickName[i] = NULL;
+        }
+    }
+}
+
+
+/* implementation functions */
+void
+SetMMerror(char *function, int code)
+{
+    static char *error;
+    static char errbuf[1024];
+
+    errbuf[0] = 0;
+    switch (code) {
+    case MMSYSERR_NODRIVER:
+        error = "Joystick driver not present";
+        break;
+
+    case MMSYSERR_INVALPARAM:
+    case JOYERR_PARMS:
+        error = "Invalid parameter(s)";
+        break;
+
+    case MMSYSERR_BADDEVICEID:
+        error = "Bad device ID";
+        break;
+
+    case JOYERR_UNPLUGGED:
+        error = "Joystick not attached";
+        break;
+
+    case JOYERR_NOCANDO:
+        error = "Can't capture joystick input";
+        break;
+
+    default:
+        SDL_snprintf(errbuf, SDL_arraysize(errbuf),
+                     "%s: Unknown Multimedia system error: 0x%x",
+                     function, code);
+        break;
+    }
+
+    if (!errbuf[0]) {
+        SDL_snprintf(errbuf, SDL_arraysize(errbuf), "%s: %s", function,
+                     error);
+    }
+    SDL_SetError("%s", errbuf);
+}
+
+#endif /* SDL_JOYSTICK_WINMM */
+/* vi: set ts=4 sw=4 expandtab: */