src/joystick/SDL_gamecontroller.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 13 Nov 2016 22:57:41 -0800
changeset 10609 d702ecbd8ba7
parent 10605 8a059b7b01c4
child 10632 e5f5afc9f3fb
permissions -rw-r--r--
Patch from Sylvain to fix clang warnings
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../SDL_internal.h"
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/* This is the game controller API for Simple DirectMedia Layer */
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#include "SDL_events.h"
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#include "SDL_assert.h"
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#include "SDL_sysjoystick.h"
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#include "SDL_hints.h"
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#include "SDL_gamecontrollerdb.h"
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#if !SDL_EVENTS_DISABLED
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#include "../events/SDL_events_c.h"
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#endif
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#define ABS(_x) ((_x) < 0 ? -(_x) : (_x))
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#define SDL_CONTROLLER_PLATFORM_FIELD "platform:"
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/* a list of currently opened game controllers */
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static SDL_GameController *SDL_gamecontrollers = NULL;
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/* keep track of the hat and mask value that transforms this hat movement into a button/axis press */
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struct _SDL_HatMapping
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{
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    int hat;
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    Uint8 mask;
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};
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/* We need 36 entries for Android (as of SDL v2.0.4) */
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#define k_nMaxReverseEntries 48
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/**
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 * We are encoding the "HAT" as 0xhm. where h == hat ID and m == mask
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 * MAX 4 hats supported
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 */
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#define k_nMaxHatEntries 0x3f + 1
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/* our in memory mapping db between joystick objects and controller mappings */
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struct _SDL_ControllerMapping
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{
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    SDL_JoystickGUID guid;
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    const char *name;
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    /* mapping of axis/button id to controller version */
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    int axes[SDL_CONTROLLER_AXIS_MAX];
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    int buttonasaxis[SDL_CONTROLLER_AXIS_MAX];
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    int buttons[SDL_CONTROLLER_BUTTON_MAX];
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    int axesasbutton[SDL_CONTROLLER_BUTTON_MAX];
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    struct _SDL_HatMapping hatasbutton[SDL_CONTROLLER_BUTTON_MAX];
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    /* reverse mapping, joystick indices to buttons */
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    SDL_GameControllerAxis raxes[k_nMaxReverseEntries];
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    SDL_GameControllerAxis rbuttonasaxis[k_nMaxReverseEntries];
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    SDL_GameControllerButton rbuttons[k_nMaxReverseEntries];
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    SDL_GameControllerButton raxesasbutton[k_nMaxReverseEntries];
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    SDL_GameControllerButton rhatasbutton[k_nMaxHatEntries];
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};
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/* our hard coded list of mapping support */
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typedef enum
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{
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    SDL_CONTROLLER_MAPPING_PRIORITY_DEFAULT,
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    SDL_CONTROLLER_MAPPING_PRIORITY_API,
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    SDL_CONTROLLER_MAPPING_PRIORITY_USER,
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} SDL_ControllerMappingPriority;
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typedef struct _ControllerMapping_t
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{
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    SDL_JoystickGUID guid;
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    char *name;
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    char *mapping;
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    SDL_ControllerMappingPriority priority;
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    struct _ControllerMapping_t *next;
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} ControllerMapping_t;
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static ControllerMapping_t *s_pSupportedControllers = NULL;
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static ControllerMapping_t *s_pXInputMapping = NULL;
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static ControllerMapping_t *s_pEmscriptenMapping = NULL;
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/* The SDL game controller structure */
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struct _SDL_GameController
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{
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    SDL_Joystick *joystick; /* underlying joystick device */
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    int ref_count;
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    Uint8 hatState[4]; /* the current hat state for this controller */
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    struct _SDL_ControllerMapping mapping; /* the mapping object for this controller */
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    struct _SDL_GameController *next; /* pointer to next game controller we have allocated */
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};
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int SDL_PrivateGameControllerAxis(SDL_GameController * gamecontroller, SDL_GameControllerAxis axis, Sint16 value);
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int SDL_PrivateGameControllerButton(SDL_GameController * gamecontroller, SDL_GameControllerButton button, Uint8 state);
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/*
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 * If there is an existing add event in the queue, it needs to be modified
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 * to have the right value for which, because the number of controllers in
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 * the system is now one less.
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 */
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static void UpdateEventsForDeviceRemoval()
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{
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    int i, num_events;
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    SDL_Event *events;
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    num_events = SDL_PeepEvents(NULL, 0, SDL_PEEKEVENT, SDL_CONTROLLERDEVICEADDED, SDL_CONTROLLERDEVICEADDED);
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    if (num_events <= 0) {
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        return;
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    }
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    events = SDL_stack_alloc(SDL_Event, num_events);
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    if (!events) {
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        return;
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    }
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    num_events = SDL_PeepEvents(events, num_events, SDL_GETEVENT, SDL_CONTROLLERDEVICEADDED, SDL_CONTROLLERDEVICEADDED);
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    for (i = 0; i < num_events; ++i) {
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        --events[i].cdevice.which;
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    }
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    SDL_PeepEvents(events, num_events, SDL_ADDEVENT, 0, 0);
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    SDL_stack_free(events);
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}
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/*
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 * Event filter to fire controller events from joystick ones
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 */
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static int SDL_GameControllerEventWatcher(void *userdata, SDL_Event * event)
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{
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    switch(event->type) {
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    case SDL_JOYAXISMOTION:
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        {
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            SDL_GameController *controllerlist;
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            if (event->jaxis.axis >= k_nMaxReverseEntries)
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            {
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                SDL_SetError("SDL_GameControllerEventWatcher: Axis index %d too large, ignoring motion", (int)event->jaxis.axis);
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                break;
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            }
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            controllerlist = SDL_gamecontrollers;
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            while (controllerlist) {
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                if (controllerlist->joystick->instance_id == event->jaxis.which) {
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                    if (controllerlist->mapping.raxes[event->jaxis.axis] >= 0) /* simple axis to axis, send it through */ {
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                        SDL_GameControllerAxis axis = controllerlist->mapping.raxes[event->jaxis.axis];
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                        Sint16 value = event->jaxis.value;
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                        switch (axis) {
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                            case SDL_CONTROLLER_AXIS_TRIGGERLEFT:
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                            case SDL_CONTROLLER_AXIS_TRIGGERRIGHT:
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                                value = value / 2 + 16384;
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                                break;
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                            default:
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                                break;
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                        }
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                        SDL_PrivateGameControllerAxis(controllerlist, axis, value);
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                    } else if (controllerlist->mapping.raxesasbutton[event->jaxis.axis] >= 0) { /* simulate an axis as a button */
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.raxesasbutton[event->jaxis.axis], ABS(event->jaxis.value) > 32768/2 ? SDL_PRESSED : SDL_RELEASED);
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                    }
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                    break;
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                }
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                controllerlist = controllerlist->next;
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            }
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        }
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        break;
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    case SDL_JOYBUTTONDOWN:
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    case SDL_JOYBUTTONUP:
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        {
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            SDL_GameController *controllerlist;
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            if (event->jbutton.button >= k_nMaxReverseEntries)
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            {
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                SDL_SetError("SDL_GameControllerEventWatcher: Button index %d too large, ignoring update", (int)event->jbutton.button);
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                break;
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            }
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            controllerlist = SDL_gamecontrollers;
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            while (controllerlist) {
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                if (controllerlist->joystick->instance_id == event->jbutton.which) {
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                    if (controllerlist->mapping.rbuttons[event->jbutton.button] >= 0) { /* simple button as button */
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rbuttons[event->jbutton.button], event->jbutton.state);
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                    } else if (controllerlist->mapping.rbuttonasaxis[event->jbutton.button] >= 0) { /* an button pretending to be an axis */
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                        SDL_PrivateGameControllerAxis(controllerlist, controllerlist->mapping.rbuttonasaxis[event->jbutton.button], event->jbutton.state > 0 ? 32767 : 0);
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                    }
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                    break;
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                }
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                controllerlist = controllerlist->next;
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            }
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        }
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        break;
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    case SDL_JOYHATMOTION:
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        {
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            SDL_GameController *controllerlist;
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            if (event->jhat.hat >= 4) break;
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            controllerlist = SDL_gamecontrollers;
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            while (controllerlist) {
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                if (controllerlist->joystick->instance_id == event->jhat.which) {
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                    Uint8 bSame = controllerlist->hatState[event->jhat.hat] & event->jhat.value;
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                    /* Get list of removed bits (button release) */
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                    Uint8 bChanged = controllerlist->hatState[event->jhat.hat] ^ bSame;
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                    /* the hat idx in the high nibble */
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                    int bHighHat = event->jhat.hat << 4;
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                    if (bChanged & SDL_HAT_DOWN)
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_DOWN], SDL_RELEASED);
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                    if (bChanged & SDL_HAT_UP)
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_UP], SDL_RELEASED);
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                    if (bChanged & SDL_HAT_LEFT)
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_LEFT], SDL_RELEASED);
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                    if (bChanged & SDL_HAT_RIGHT)
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_RIGHT], SDL_RELEASED);
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                    /* Get list of added bits (button press) */
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                    bChanged = event->jhat.value ^ bSame;
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                    if (bChanged & SDL_HAT_DOWN)
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_DOWN], SDL_PRESSED);
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                    if (bChanged & SDL_HAT_UP)
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_UP], SDL_PRESSED);
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                    if (bChanged & SDL_HAT_LEFT)
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_LEFT], SDL_PRESSED);
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                    if (bChanged & SDL_HAT_RIGHT)
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                        SDL_PrivateGameControllerButton(controllerlist, controllerlist->mapping.rhatasbutton[bHighHat | SDL_HAT_RIGHT], SDL_PRESSED);
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                    /* update our state cache */
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                    controllerlist->hatState[event->jhat.hat] = event->jhat.value;
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                    break;
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                }
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                controllerlist = controllerlist->next;
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            }
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        }
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        break;
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    case SDL_JOYDEVICEADDED:
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        {
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            if (SDL_IsGameController(event->jdevice.which)) {
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                SDL_Event deviceevent;
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                deviceevent.type = SDL_CONTROLLERDEVICEADDED;
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                deviceevent.cdevice.which = event->jdevice.which;
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                SDL_PushEvent(&deviceevent);
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            }
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        }
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        break;
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    case SDL_JOYDEVICEREMOVED:
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        {
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            SDL_GameController *controllerlist = SDL_gamecontrollers;
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            while (controllerlist) {
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                if (controllerlist->joystick->instance_id == event->jdevice.which) {
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                    SDL_Event deviceevent;
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                    deviceevent.type = SDL_CONTROLLERDEVICEREMOVED;
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                    deviceevent.cdevice.which = event->jdevice.which;
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                    SDL_PushEvent(&deviceevent);
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                    UpdateEventsForDeviceRemoval();
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                    break;
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                }
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                controllerlist = controllerlist->next;
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            }
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        }
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        break;
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    default:
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        break;
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    }
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    return 1;
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}
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/*
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 * Helper function to scan the mappings database for a controller with the specified GUID
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 */
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static ControllerMapping_t *SDL_PrivateGetControllerMappingForGUID(SDL_JoystickGUID *guid)
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{
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    ControllerMapping_t *pSupportedController = s_pSupportedControllers;
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    while (pSupportedController) {
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        if (SDL_memcmp(guid, &pSupportedController->guid, sizeof(*guid)) == 0) {
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            return pSupportedController;
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        }
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        pSupportedController = pSupportedController->next;
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    }
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    return NULL;
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}
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static const char* map_StringForControllerAxis[] = {
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    "leftx",
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    "lefty",
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    "rightx",
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    "righty",
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    "lefttrigger",
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    "righttrigger",
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    NULL
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};
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/*
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 * convert a string to its enum equivalent
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 */
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SDL_GameControllerAxis SDL_GameControllerGetAxisFromString(const char *pchString)
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{
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    int entry;
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    if (!pchString || !pchString[0])
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        return SDL_CONTROLLER_AXIS_INVALID;
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    for (entry = 0; map_StringForControllerAxis[entry]; ++entry) {
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        if (!SDL_strcasecmp(pchString, map_StringForControllerAxis[entry]))
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            return entry;
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    }
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    return SDL_CONTROLLER_AXIS_INVALID;
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}
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/*
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 * convert an enum to its string equivalent
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 */
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const char* SDL_GameControllerGetStringForAxis(SDL_GameControllerAxis axis)
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{
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    if (axis > SDL_CONTROLLER_AXIS_INVALID && axis < SDL_CONTROLLER_AXIS_MAX) {
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        return map_StringForControllerAxis[axis];
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    }
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    return NULL;
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}
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static const char* map_StringForControllerButton[] = {
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    "a",
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    "b",
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    "x",
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    "y",
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   348
    "back",
slouken@8582
   349
    "guide",
slouken@8582
   350
    "start",
slouken@8582
   351
    "leftstick",
slouken@8582
   352
    "rightstick",
slouken@8582
   353
    "leftshoulder",
slouken@8582
   354
    "rightshoulder",
slouken@8582
   355
    "dpup",
slouken@8582
   356
    "dpdown",
slouken@8582
   357
    "dpleft",
slouken@8582
   358
    "dpright",
slouken@8582
   359
    NULL
slouken@8582
   360
};
slouken@8582
   361
slouken@8582
   362
/*
slouken@8582
   363
 * convert a string to its enum equivalent
slouken@8582
   364
 */
slouken@8772
   365
SDL_GameControllerButton SDL_GameControllerGetButtonFromString(const char *pchString)
slouken@8582
   366
{
slouken@8582
   367
    int entry;
slouken@8772
   368
    if (!pchString || !pchString[0])
slouken@8582
   369
        return SDL_CONTROLLER_BUTTON_INVALID;
slouken@8582
   370
slouken@8772
   371
    for (entry = 0; map_StringForControllerButton[entry]; ++entry) {
slouken@8772
   372
        if (SDL_strcasecmp(pchString, map_StringForControllerButton[entry]) == 0)
slouken@8772
   373
            return entry;
slouken@8582
   374
    }
slouken@8582
   375
    return SDL_CONTROLLER_BUTTON_INVALID;
slouken@8582
   376
}
slouken@8582
   377
slouken@8582
   378
/*
slouken@8582
   379
 * convert an enum to its string equivalent
slouken@8582
   380
 */
slouken@8772
   381
const char* SDL_GameControllerGetStringForButton(SDL_GameControllerButton axis)
slouken@8582
   382
{
slouken@8772
   383
    if (axis > SDL_CONTROLLER_BUTTON_INVALID && axis < SDL_CONTROLLER_BUTTON_MAX) {
slouken@8582
   384
        return map_StringForControllerButton[axis];
slouken@8582
   385
    }
slouken@8582
   386
    return NULL;
slouken@8582
   387
}
slouken@8582
   388
slouken@8582
   389
/*
slouken@8582
   390
 * given a controller button name and a joystick name update our mapping structure with it
slouken@8582
   391
 */
slouken@10609
   392
static void SDL_PrivateGameControllerParseButton(const char *szGameButton, const char *szJoystickButton, struct _SDL_ControllerMapping *pMapping)
slouken@8582
   393
{
slouken@8582
   394
    int iSDLButton = 0;
slouken@8582
   395
    SDL_GameControllerButton button;
slouken@8582
   396
    SDL_GameControllerAxis axis;
slouken@8772
   397
    button = SDL_GameControllerGetButtonFromString(szGameButton);
slouken@8772
   398
    axis = SDL_GameControllerGetAxisFromString(szGameButton);
slouken@8772
   399
    iSDLButton = SDL_atoi(&szJoystickButton[1]);
slouken@8582
   400
slouken@8772
   401
    if (szJoystickButton[0] == 'a') {
slouken@8772
   402
        if (iSDLButton >= k_nMaxReverseEntries) {
slouken@8772
   403
            SDL_SetError("Axis index too large: %d", iSDLButton);
slouken@8582
   404
            return;
slouken@8582
   405
        }
slouken@8772
   406
        if (axis != SDL_CONTROLLER_AXIS_INVALID) {
slouken@10602
   407
            pMapping->axes[axis] = iSDLButton;
slouken@10602
   408
            pMapping->raxes[iSDLButton] = axis;
slouken@8772
   409
        } else if (button != SDL_CONTROLLER_BUTTON_INVALID) {
slouken@10602
   410
            pMapping->axesasbutton[button] = iSDLButton;
slouken@10602
   411
            pMapping->raxesasbutton[iSDLButton] = button;
slouken@8772
   412
        } else {
slouken@8772
   413
            SDL_assert(!"How did we get here?");
slouken@8582
   414
        }
slouken@8582
   415
slouken@8772
   416
    } else if (szJoystickButton[0] == 'b') {
slouken@8772
   417
        if (iSDLButton >= k_nMaxReverseEntries) {
slouken@8772
   418
            SDL_SetError("Button index too large: %d", iSDLButton);
slouken@8582
   419
            return;
slouken@8582
   420
        }
slouken@8772
   421
        if (button != SDL_CONTROLLER_BUTTON_INVALID) {
slouken@10602
   422
            pMapping->buttons[button] = iSDLButton;
slouken@10602
   423
            pMapping->rbuttons[iSDLButton] = button;
slouken@8772
   424
        } else if (axis != SDL_CONTROLLER_AXIS_INVALID) {
slouken@10602
   425
            pMapping->buttonasaxis[axis] = iSDLButton;
slouken@10602
   426
            pMapping->rbuttonasaxis[iSDLButton] = axis;
slouken@8772
   427
        } else {
slouken@8772
   428
            SDL_assert(!"How did we get here?");
slouken@8582
   429
        }
slouken@8772
   430
    } else if (szJoystickButton[0] == 'h') {
slouken@8772
   431
        int hat = SDL_atoi(&szJoystickButton[1]);
slouken@8772
   432
        int mask = SDL_atoi(&szJoystickButton[3]);
slouken@8582
   433
        if (hat >= 4) {
slouken@8772
   434
            SDL_SetError("Hat index too large: %d", iSDLButton);
slouken@8582
   435
        }
slouken@8582
   436
slouken@8772
   437
        if (button != SDL_CONTROLLER_BUTTON_INVALID) {
slouken@8582
   438
            int ridx;
slouken@10602
   439
            pMapping->hatasbutton[button].hat = hat;
slouken@10602
   440
            pMapping->hatasbutton[button].mask = mask;
slouken@8582
   441
            ridx = (hat << 4) | mask;
slouken@10602
   442
            pMapping->rhatasbutton[ridx] = button;
slouken@8772
   443
        } else if (axis != SDL_CONTROLLER_AXIS_INVALID) {
slouken@8772
   444
            SDL_assert(!"Support hat as axis");
slouken@8772
   445
        } else {
slouken@8772
   446
            SDL_assert(!"How did we get here?");
slouken@8582
   447
        }
slouken@8582
   448
    }
slouken@8582
   449
}
slouken@8582
   450
slouken@8582
   451
slouken@8582
   452
/*
slouken@8582
   453
 * given a controller mapping string update our mapping object
slouken@8582
   454
 */
slouken@8582
   455
static void
slouken@8772
   456
SDL_PrivateGameControllerParseControllerConfigString(struct _SDL_ControllerMapping *pMapping, const char *pchString)
slouken@8582
   457
{
slouken@8582
   458
    char szGameButton[20];
slouken@8582
   459
    char szJoystickButton[20];
slouken@8582
   460
    SDL_bool bGameButton = SDL_TRUE;
slouken@8582
   461
    int i = 0;
slouken@8582
   462
    const char *pchPos = pchString;
slouken@8582
   463
slouken@8772
   464
    SDL_memset(szGameButton, 0x0, sizeof(szGameButton));
slouken@8772
   465
    SDL_memset(szJoystickButton, 0x0, sizeof(szJoystickButton));
slouken@8582
   466
slouken@8772
   467
    while (pchPos && *pchPos) {
slouken@8772
   468
        if (*pchPos == ':') {
slouken@8582
   469
            i = 0;
slouken@8582
   470
            bGameButton = SDL_FALSE;
slouken@8772
   471
        } else if (*pchPos == ' ') {
slouken@8582
   472
slouken@8772
   473
        } else if (*pchPos == ',') {
slouken@8582
   474
            i = 0;
slouken@8582
   475
            bGameButton = SDL_TRUE;
slouken@8772
   476
            SDL_PrivateGameControllerParseButton(szGameButton, szJoystickButton, pMapping);
slouken@8772
   477
            SDL_memset(szGameButton, 0x0, sizeof(szGameButton));
slouken@8772
   478
            SDL_memset(szJoystickButton, 0x0, sizeof(szJoystickButton));
slouken@8582
   479
slouken@8772
   480
        } else if (bGameButton) {
slouken@8772
   481
            if (i >= sizeof(szGameButton)) {
slouken@8772
   482
                SDL_SetError("Button name too large: %s", szGameButton);
slouken@8582
   483
                return;
slouken@8582
   484
            }
slouken@8582
   485
            szGameButton[i] = *pchPos;
slouken@8582
   486
            i++;
slouken@8772
   487
        } else {
slouken@8772
   488
            if (i >= sizeof(szJoystickButton)) {
slouken@8772
   489
                SDL_SetError("Joystick button name too large: %s", szJoystickButton);
slouken@8582
   490
                return;
slouken@8582
   491
            }
slouken@8582
   492
            szJoystickButton[i] = *pchPos;
slouken@8582
   493
            i++;
slouken@8582
   494
        }
slouken@8582
   495
        pchPos++;
slouken@8582
   496
    }
slouken@8582
   497
slouken@8772
   498
    SDL_PrivateGameControllerParseButton(szGameButton, szJoystickButton, pMapping);
slouken@8582
   499
slouken@8582
   500
}
slouken@8582
   501
slouken@8582
   502
/*
slouken@8582
   503
 * Make a new button mapping struct
slouken@8582
   504
 */
slouken@10609
   505
static void SDL_PrivateLoadButtonMapping(struct _SDL_ControllerMapping *pMapping, SDL_JoystickGUID guid, const char *pchName, const char *pchMapping)
slouken@8582
   506
{
slouken@8582
   507
    int j;
slouken@8582
   508
slouken@8582
   509
    pMapping->guid = guid;
slouken@8582
   510
    pMapping->name = pchName;
slouken@8582
   511
slouken@8582
   512
    /* set all the button mappings to non defaults */
slouken@8772
   513
    for (j = 0; j < SDL_CONTROLLER_AXIS_MAX; j++) {
slouken@8582
   514
        pMapping->axes[j] = -1;
slouken@8582
   515
        pMapping->buttonasaxis[j] = -1;
slouken@8582
   516
    }
slouken@8772
   517
    for (j = 0; j < SDL_CONTROLLER_BUTTON_MAX; j++) {
slouken@8582
   518
        pMapping->buttons[j] = -1;
slouken@8582
   519
        pMapping->axesasbutton[j] = -1;
slouken@8582
   520
        pMapping->hatasbutton[j].hat = -1;
slouken@8582
   521
    }
slouken@8582
   522
slouken@8772
   523
    for (j = 0; j < k_nMaxReverseEntries; j++) {
slouken@8582
   524
        pMapping->raxes[j] = SDL_CONTROLLER_AXIS_INVALID;
slouken@8582
   525
        pMapping->rbuttonasaxis[j] = SDL_CONTROLLER_AXIS_INVALID;
slouken@8582
   526
        pMapping->rbuttons[j] = SDL_CONTROLLER_BUTTON_INVALID;
slouken@8582
   527
        pMapping->raxesasbutton[j] = SDL_CONTROLLER_BUTTON_INVALID;
slouken@8582
   528
    }
slouken@8582
   529
slouken@8772
   530
    for (j = 0; j < k_nMaxHatEntries; j++) {
slouken@8582
   531
        pMapping->rhatasbutton[j] = SDL_CONTROLLER_BUTTON_INVALID;
slouken@8582
   532
    }
slouken@8582
   533
slouken@8772
   534
    SDL_PrivateGameControllerParseControllerConfigString(pMapping, pchMapping);
slouken@8582
   535
}
slouken@8582
   536
slouken@8582
   537
slouken@8582
   538
/*
slouken@8582
   539
 * grab the guid string from a mapping string
slouken@8582
   540
 */
slouken@10609
   541
static char *SDL_PrivateGetControllerGUIDFromMappingString(const char *pMapping)
slouken@8582
   542
{
slouken@8772
   543
    const char *pFirstComma = SDL_strchr(pMapping, ',');
slouken@8772
   544
    if (pFirstComma) {
slouken@8772
   545
        char *pchGUID = SDL_malloc(pFirstComma - pMapping + 1);
slouken@8772
   546
        if (!pchGUID) {
slouken@8582
   547
            SDL_OutOfMemory();
slouken@8582
   548
            return NULL;
slouken@8582
   549
        }
slouken@8772
   550
        SDL_memcpy(pchGUID, pMapping, pFirstComma - pMapping);
slouken@10602
   551
        pchGUID[pFirstComma - pMapping] = '\0';
slouken@10602
   552
slouken@10602
   553
        /* Convert old style GUIDs to the new style in 2.0.5 */
slouken@10602
   554
#if __WIN32__
slouken@10602
   555
        if (SDL_strlen(pchGUID) == 32 &&
slouken@10602
   556
            SDL_memcmp(&pchGUID[20], "504944564944", 12) == 0) {
slouken@10602
   557
            SDL_memcpy(&pchGUID[20], "000000000000", 12);
slouken@10602
   558
            SDL_memcpy(&pchGUID[16], &pchGUID[4], 4);
slouken@10602
   559
            SDL_memcpy(&pchGUID[8], &pchGUID[0], 4);
slouken@10602
   560
            SDL_memcpy(&pchGUID[0], "03000000", 8);
slouken@10602
   561
        }
slouken@10602
   562
#elif __MACOSX__
slouken@10602
   563
        if (SDL_strlen(pchGUID) == 32 &&
slouken@10602
   564
            SDL_memcmp(&pchGUID[4], "000000000000", 12) == 0 &&
slouken@10602
   565
            SDL_memcmp(&pchGUID[20], "000000000000", 12) == 0) {
slouken@10602
   566
            SDL_memcpy(&pchGUID[20], "000000000000", 12);
slouken@10602
   567
            SDL_memcpy(&pchGUID[8], &pchGUID[0], 4);
slouken@10602
   568
            SDL_memcpy(&pchGUID[0], "03000000", 8);
slouken@10602
   569
        }
slouken@10602
   570
#endif
slouken@8582
   571
        return pchGUID;
slouken@8582
   572
    }
slouken@8582
   573
    return NULL;
slouken@8582
   574
}
slouken@8582
   575
slouken@8582
   576
slouken@8582
   577
/*
slouken@8582
   578
 * grab the name string from a mapping string
slouken@8582
   579
 */
slouken@10609
   580
static char *SDL_PrivateGetControllerNameFromMappingString(const char *pMapping)
slouken@8582
   581
{
slouken@8582
   582
    const char *pFirstComma, *pSecondComma;
slouken@8582
   583
    char *pchName;
slouken@8582
   584
slouken@8772
   585
    pFirstComma = SDL_strchr(pMapping, ',');
slouken@8772
   586
    if (!pFirstComma)
slouken@8582
   587
        return NULL;
slouken@8582
   588
slouken@8772
   589
    pSecondComma = SDL_strchr(pFirstComma + 1, ',');
slouken@8772
   590
    if (!pSecondComma)
slouken@8582
   591
        return NULL;
slouken@8582
   592
slouken@8772
   593
    pchName = SDL_malloc(pSecondComma - pFirstComma);
slouken@8772
   594
    if (!pchName) {
slouken@8582
   595
        SDL_OutOfMemory();
slouken@8582
   596
        return NULL;
slouken@8582
   597
    }
slouken@8772
   598
    SDL_memcpy(pchName, pFirstComma + 1, pSecondComma - pFirstComma);
slouken@10602
   599
    pchName[pSecondComma - pFirstComma - 1] = 0;
slouken@8582
   600
    return pchName;
slouken@8582
   601
}
slouken@8582
   602
slouken@8582
   603
slouken@8582
   604
/*
slouken@8582
   605
 * grab the button mapping string from a mapping string
slouken@8582
   606
 */
slouken@10609
   607
static char *SDL_PrivateGetControllerMappingFromMappingString(const char *pMapping)
slouken@8582
   608
{
slouken@8582
   609
    const char *pFirstComma, *pSecondComma;
slouken@8582
   610
slouken@8772
   611
    pFirstComma = SDL_strchr(pMapping, ',');
slouken@8772
   612
    if (!pFirstComma)
slouken@8582
   613
        return NULL;
slouken@8582
   614
slouken@8772
   615
    pSecondComma = SDL_strchr(pFirstComma + 1, ',');
slouken@8772
   616
    if (!pSecondComma)
slouken@8582
   617
        return NULL;
slouken@8582
   618
slouken@8582
   619
    return SDL_strdup(pSecondComma + 1); /* mapping is everything after the 3rd comma */
slouken@8582
   620
}
slouken@8582
   621
slouken@9956
   622
/*
slouken@9956
   623
 * Helper function to refresh a mapping
slouken@9956
   624
 */
slouken@10609
   625
static void SDL_PrivateGameControllerRefreshMapping(ControllerMapping_t *pControllerMapping)
slouken@8582
   626
{
slouken@8582
   627
    SDL_GameController *gamecontrollerlist = SDL_gamecontrollers;
slouken@8772
   628
    while (gamecontrollerlist) {
slouken@8772
   629
        if (!SDL_memcmp(&gamecontrollerlist->mapping.guid, &pControllerMapping->guid, sizeof(pControllerMapping->guid))) {
slouken@8582
   630
            SDL_Event event;
slouken@8582
   631
            event.type = SDL_CONTROLLERDEVICEREMAPPED;
slouken@8582
   632
            event.cdevice.which = gamecontrollerlist->joystick->instance_id;
slouken@8582
   633
            SDL_PushEvent(&event);
slouken@8582
   634
slouken@8582
   635
            /* Not really threadsafe.  Should this lock access within SDL_GameControllerEventWatcher? */
slouken@8582
   636
            SDL_PrivateLoadButtonMapping(&gamecontrollerlist->mapping, pControllerMapping->guid, pControllerMapping->name, pControllerMapping->mapping);
slouken@8582
   637
        }
slouken@8582
   638
slouken@8582
   639
        gamecontrollerlist = gamecontrollerlist->next;
slouken@8582
   640
    }
slouken@8582
   641
}
slouken@8582
   642
slouken@8582
   643
/*
slouken@9956
   644
 * Helper function to add a mapping for a guid
slouken@9956
   645
 */
slouken@9956
   646
static ControllerMapping_t *
slouken@10605
   647
SDL_PrivateAddMappingForGUID(SDL_JoystickGUID jGUID, const char *mappingString, SDL_bool *existing, SDL_ControllerMappingPriority priority)
slouken@9956
   648
{
slouken@9956
   649
    char *pchName;
slouken@9956
   650
    char *pchMapping;
slouken@9956
   651
    ControllerMapping_t *pControllerMapping;
slouken@9956
   652
slouken@9956
   653
    pchName = SDL_PrivateGetControllerNameFromMappingString(mappingString);
slouken@9956
   654
    if (!pchName) {
slouken@9956
   655
        SDL_SetError("Couldn't parse name from %s", mappingString);
slouken@9956
   656
        return NULL;
slouken@9956
   657
    }
slouken@9956
   658
slouken@9956
   659
    pchMapping = SDL_PrivateGetControllerMappingFromMappingString(mappingString);
slouken@9956
   660
    if (!pchMapping) {
slouken@9956
   661
        SDL_free(pchName);
slouken@9956
   662
        SDL_SetError("Couldn't parse %s", mappingString);
slouken@9956
   663
        return NULL;
slouken@9956
   664
    }
slouken@9956
   665
slouken@9956
   666
    pControllerMapping = SDL_PrivateGetControllerMappingForGUID(&jGUID);
slouken@9956
   667
    if (pControllerMapping) {
slouken@10605
   668
        /* Only overwrite the mapping if the priority is the same or higher. */
slouken@10605
   669
        if (pControllerMapping->priority <= priority) {
slouken@10605
   670
            /* Update existing mapping */
slouken@10605
   671
            SDL_free(pControllerMapping->name);
slouken@10605
   672
            pControllerMapping->name = pchName;
slouken@10605
   673
            SDL_free(pControllerMapping->mapping);
slouken@10605
   674
            pControllerMapping->mapping = pchMapping;
slouken@10605
   675
            pControllerMapping->priority = priority;
slouken@10605
   676
            /* refresh open controllers */
slouken@10605
   677
            SDL_PrivateGameControllerRefreshMapping(pControllerMapping);
slouken@10605
   678
        }
slouken@9956
   679
        *existing = SDL_TRUE;
slouken@9956
   680
    } else {
slouken@9956
   681
        pControllerMapping = SDL_malloc(sizeof(*pControllerMapping));
slouken@9956
   682
        if (!pControllerMapping) {
slouken@9956
   683
            SDL_free(pchName);
slouken@9956
   684
            SDL_free(pchMapping);
slouken@9956
   685
            SDL_OutOfMemory();
slouken@9956
   686
            return NULL;
slouken@9956
   687
        }
slouken@9956
   688
        pControllerMapping->guid = jGUID;
slouken@9956
   689
        pControllerMapping->name = pchName;
slouken@9956
   690
        pControllerMapping->mapping = pchMapping;
slouken@9956
   691
        pControllerMapping->next = s_pSupportedControllers;
slouken@10605
   692
        pControllerMapping->priority = priority;
slouken@9956
   693
        s_pSupportedControllers = pControllerMapping;
slouken@9956
   694
        *existing = SDL_FALSE;
slouken@9956
   695
    }
slouken@9956
   696
    return pControllerMapping;
slouken@9956
   697
}
slouken@9956
   698
slouken@9956
   699
/*
slouken@9956
   700
 * Helper function to determine pre-calculated offset to certain joystick mappings
slouken@9956
   701
 */
slouken@10609
   702
static ControllerMapping_t *SDL_PrivateGetControllerMapping(int device_index)
slouken@9956
   703
{
slouken@9956
   704
    SDL_JoystickGUID jGUID = SDL_JoystickGetDeviceGUID(device_index);
slouken@9956
   705
    ControllerMapping_t *mapping;
slouken@9956
   706
slouken@9956
   707
    mapping = SDL_PrivateGetControllerMappingForGUID(&jGUID);
slouken@9956
   708
#if SDL_JOYSTICK_XINPUT
slouken@9956
   709
    if (!mapping && SDL_SYS_IsXInputGamepad_DeviceIndex(device_index)) {
slouken@9956
   710
        mapping = s_pXInputMapping;
slouken@9956
   711
    }
slouken@9956
   712
#endif
slouken@9956
   713
#if defined(SDL_JOYSTICK_EMSCRIPTEN)
slouken@9956
   714
    if (!mapping && s_pEmscriptenMapping) {
slouken@9956
   715
        mapping = s_pEmscriptenMapping;
slouken@9956
   716
    }
slouken@9956
   717
#endif
slouken@9956
   718
#ifdef __LINUX__
slouken@9956
   719
    if (!mapping) {
slouken@9956
   720
        const char *name = SDL_JoystickNameForIndex(device_index);
slouken@9956
   721
        if (name) {
slouken@9956
   722
            if (SDL_strstr(name, "Xbox 360 Wireless Receiver")) {
slouken@9956
   723
                /* The Linux driver xpad.c maps the wireless dpad to buttons */
slouken@9956
   724
                SDL_bool existing;
slouken@9956
   725
                mapping = SDL_PrivateAddMappingForGUID(jGUID,
slouken@9956
   726
"none,X360 Wireless Controller,a:b0,b:b1,back:b6,dpdown:b14,dpleft:b11,dpright:b12,dpup:b13,guide:b8,leftshoulder:b4,leftstick:b9,lefttrigger:a2,leftx:a0,lefty:a1,rightshoulder:b5,rightstick:b10,righttrigger:a5,rightx:a3,righty:a4,start:b7,x:b2,y:b3,",
slouken@10605
   727
                              &existing, SDL_CONTROLLER_MAPPING_PRIORITY_DEFAULT);
slouken@9956
   728
            }
slouken@9956
   729
        }
slouken@9956
   730
    }
slouken@9956
   731
#endif /* __LINUX__ */
slouken@9956
   732
slouken@9956
   733
    if (!mapping) {
slouken@9956
   734
        const char *name = SDL_JoystickNameForIndex(device_index);
slouken@9956
   735
        if (name) {
slouken@9956
   736
            if (SDL_strstr(name, "Xbox") || SDL_strstr(name, "X-Box")) {
slouken@9956
   737
                mapping = s_pXInputMapping;
slouken@9956
   738
            }
slouken@9956
   739
        }
slouken@9956
   740
    }
slouken@9956
   741
    return mapping;
slouken@9956
   742
}
slouken@9956
   743
slouken@9956
   744
/*
slouken@8582
   745
 * Add or update an entry into the Mappings Database
slouken@8582
   746
 */
slouken@8582
   747
int
slouken@8772
   748
SDL_GameControllerAddMappingsFromRW(SDL_RWops * rw, int freerw)
gabomdq@8042
   749
{
gabomdq@8042
   750
    const char *platform = SDL_GetPlatform();
gabomdq@8042
   751
    int controllers = 0;
gabomdq@8042
   752
    char *buf, *line, *line_end, *tmp, *comma, line_platform[64];
gabomdq@8042
   753
    size_t db_size, platform_len;
gabomdq@8042
   754
    
gabomdq@8042
   755
    if (rw == NULL) {
gabomdq@8046
   756
        return SDL_SetError("Invalid RWops");
gabomdq@8042
   757
    }
slouken@8052
   758
    db_size = (size_t)SDL_RWsize(rw);
gabomdq@8042
   759
    
slouken@8052
   760
    buf = (char *)SDL_malloc(db_size + 1);
gabomdq@8042
   761
    if (buf == NULL) {
gabomdq@8046
   762
        if (freerw) {
gabomdq@8046
   763
            SDL_RWclose(rw);
gabomdq@8046
   764
        }
philipp@9194
   765
        return SDL_SetError("Could not allocate space to read DB into memory");
gabomdq@8042
   766
    }
gabomdq@8042
   767
    
gabomdq@8042
   768
    if (SDL_RWread(rw, buf, db_size, 1) != 1) {
gabomdq@8046
   769
        if (freerw) {
gabomdq@8046
   770
            SDL_RWclose(rw);
gabomdq@8046
   771
        }
gabomdq@8042
   772
        SDL_free(buf);
gabomdq@8042
   773
        return SDL_SetError("Could not read DB");
gabomdq@8042
   774
    }
gabomdq@8046
   775
    
gabomdq@8046
   776
    if (freerw) {
gabomdq@8046
   777
        SDL_RWclose(rw);
gabomdq@8046
   778
    }
gabomdq@8042
   779
    
gabomdq@8042
   780
    buf[db_size] = '\0';
gabomdq@8042
   781
    line = buf;
gabomdq@8042
   782
    
gabomdq@8042
   783
    while (line < buf + db_size) {
slouken@8772
   784
        line_end = SDL_strchr(line, '\n');
gabomdq@8042
   785
        if (line_end != NULL) {
gabomdq@8042
   786
            *line_end = '\0';
slouken@8772
   787
        } else {
gabomdq@8042
   788
            line_end = buf + db_size;
gabomdq@8042
   789
        }
gabomdq@8042
   790
        
gabomdq@8042
   791
        /* Extract and verify the platform */
gabomdq@8042
   792
        tmp = SDL_strstr(line, SDL_CONTROLLER_PLATFORM_FIELD);
slouken@8772
   793
        if (tmp != NULL) {
gabomdq@8042
   794
            tmp += SDL_strlen(SDL_CONTROLLER_PLATFORM_FIELD);
gabomdq@8042
   795
            comma = SDL_strchr(tmp, ',');
gabomdq@8042
   796
            if (comma != NULL) {
gabomdq@8042
   797
                platform_len = comma - tmp + 1;
gabomdq@8042
   798
                if (platform_len + 1 < SDL_arraysize(line_platform)) {
gabomdq@8042
   799
                    SDL_strlcpy(line_platform, tmp, platform_len);
slouken@8772
   800
                    if (SDL_strncasecmp(line_platform, platform, platform_len) == 0 &&
slouken@8772
   801
                        SDL_GameControllerAddMapping(line) > 0) {
gabomdq@8042
   802
                        controllers++;
gabomdq@8042
   803
                    }
gabomdq@8042
   804
                }
gabomdq@8042
   805
            }
gabomdq@8042
   806
        }
gabomdq@8042
   807
        
gabomdq@8042
   808
        line = line_end + 1;
gabomdq@8042
   809
    }
gabomdq@8042
   810
gabomdq@8042
   811
    SDL_free(buf);
gabomdq@8042
   812
    return controllers;
gabomdq@8042
   813
}
gabomdq@8042
   814
gabomdq@8042
   815
/*
slouken@10605
   816
 * Add or update an entry into the Mappings Database with a priority
gabomdq@8042
   817
 */
slouken@10605
   818
static int
slouken@10605
   819
SDL_PrivateGameControllerAddMapping(const char *mappingString, SDL_ControllerMappingPriority priority)
slouken@8582
   820
{
slouken@8582
   821
    char *pchGUID;
slouken@8582
   822
    SDL_JoystickGUID jGUID;
slouken@8582
   823
    SDL_bool is_xinput_mapping = SDL_FALSE;
icculus@9278
   824
    SDL_bool is_emscripten_mapping = SDL_FALSE;
slouken@9956
   825
    SDL_bool existing = SDL_FALSE;
slouken@9956
   826
    ControllerMapping_t *pControllerMapping;
slouken@8582
   827
philipp@9198
   828
    if (!mappingString) {
philipp@9198
   829
        return SDL_InvalidParamError("mappingString");
philipp@9198
   830
    }
philipp@9198
   831
slouken@8772
   832
    pchGUID = SDL_PrivateGetControllerGUIDFromMappingString(mappingString);
slouken@8582
   833
    if (!pchGUID) {
philipp@8081
   834
        return SDL_SetError("Couldn't parse GUID from %s", mappingString);
slouken@8582
   835
    }
slouken@8772
   836
    if (!SDL_strcasecmp(pchGUID, "xinput")) {
slouken@8582
   837
        is_xinput_mapping = SDL_TRUE;
slouken@8582
   838
    }
icculus@9278
   839
    if (!SDL_strcasecmp(pchGUID, "emscripten")) {
icculus@9278
   840
        is_emscripten_mapping = SDL_TRUE;
icculus@9278
   841
    }
slouken@8582
   842
    jGUID = SDL_JoystickGetGUIDFromString(pchGUID);
slouken@8582
   843
    SDL_free(pchGUID);
slouken@8582
   844
slouken@10605
   845
    pControllerMapping = SDL_PrivateAddMappingForGUID(jGUID, mappingString, &existing, priority);
slouken@9956
   846
    if (!pControllerMapping) {
slouken@9956
   847
        return -1;
slouken@8053
   848
    }
slouken@8582
   849
slouken@9956
   850
    if (existing) {
slouken@8582
   851
        return 0;
slouken@8582
   852
    } else {
slouken@8772
   853
        if (is_xinput_mapping) {
slouken@8582
   854
            s_pXInputMapping = pControllerMapping;
slouken@8582
   855
        }
icculus@9278
   856
        if (is_emscripten_mapping) {
icculus@9278
   857
            s_pEmscriptenMapping = pControllerMapping;
icculus@9278
   858
        }
slouken@8582
   859
        return 1;
slouken@8582
   860
    }
slouken@8582
   861
}
slouken@8582
   862
slouken@8582
   863
/*
slouken@10605
   864
 * Add or update an entry into the Mappings Database
slouken@10605
   865
 */
slouken@10605
   866
int
slouken@10605
   867
SDL_GameControllerAddMapping(const char *mappingString)
slouken@10605
   868
{
slouken@10605
   869
    return SDL_PrivateGameControllerAddMapping(mappingString, SDL_CONTROLLER_MAPPING_PRIORITY_API);
slouken@10605
   870
}
slouken@10605
   871
slouken@10605
   872
/*
slouken@8582
   873
 * Get the mapping string for this GUID
slouken@8582
   874
 */
slouken@8582
   875
char *
slouken@8772
   876
SDL_GameControllerMappingForGUID(SDL_JoystickGUID guid)
slouken@8582
   877
{
slouken@8582
   878
    char *pMappingString = NULL;
slouken@8582
   879
    ControllerMapping_t *mapping = SDL_PrivateGetControllerMappingForGUID(&guid);
slouken@8582
   880
    if (mapping) {
slouken@8582
   881
        char pchGUID[33];
slouken@8582
   882
        size_t needed;
slouken@8582
   883
        SDL_JoystickGetGUIDString(guid, pchGUID, sizeof(pchGUID));
slouken@8582
   884
        /* allocate enough memory for GUID + ',' + name + ',' + mapping + \0 */
slouken@8582
   885
        needed = SDL_strlen(pchGUID) + 1 + SDL_strlen(mapping->name) + 1 + SDL_strlen(mapping->mapping) + 1;
slouken@8772
   886
        pMappingString = SDL_malloc(needed);
philipp@9197
   887
        if (!pMappingString) {
philipp@9197
   888
            SDL_OutOfMemory();
philipp@9197
   889
            return NULL;
philipp@9197
   890
        }
slouken@8772
   891
        SDL_snprintf(pMappingString, needed, "%s,%s,%s", pchGUID, mapping->name, mapping->mapping);
slouken@8582
   892
    }
slouken@8582
   893
    return pMappingString;
slouken@8582
   894
}
slouken@8582
   895
slouken@8582
   896
/*
slouken@8582
   897
 * Get the mapping string for this device
slouken@8582
   898
 */
slouken@8582
   899
char *
slouken@8772
   900
SDL_GameControllerMapping(SDL_GameController * gamecontroller)
slouken@8582
   901
{
philipp@9196
   902
    if (!gamecontroller) {
philipp@9196
   903
        return NULL;
philipp@9196
   904
    }
philipp@9196
   905
slouken@8772
   906
    return SDL_GameControllerMappingForGUID(gamecontroller->mapping.guid);
slouken@8582
   907
}
slouken@8582
   908
slouken@8582
   909
static void
slouken@8582
   910
SDL_GameControllerLoadHints()
slouken@8582
   911
{
slouken@8582
   912
    const char *hint = SDL_GetHint(SDL_HINT_GAMECONTROLLERCONFIG);
slouken@8772
   913
    if (hint && hint[0]) {
slouken@8772
   914
        size_t nchHints = SDL_strlen(hint);
slouken@8772
   915
        char *pUserMappings = SDL_malloc(nchHints + 1);
slouken@8582
   916
        char *pTempMappings = pUserMappings;
slouken@8772
   917
        SDL_memcpy(pUserMappings, hint, nchHints);
slouken@8267
   918
        pUserMappings[nchHints] = '\0';
slouken@8772
   919
        while (pUserMappings) {
slouken@8582
   920
            char *pchNewLine = NULL;
slouken@8582
   921
slouken@8772
   922
            pchNewLine = SDL_strchr(pUserMappings, '\n');
slouken@8772
   923
            if (pchNewLine)
slouken@8582
   924
                *pchNewLine = '\0';
slouken@8582
   925
slouken@10605
   926
            SDL_PrivateGameControllerAddMapping(pUserMappings, SDL_CONTROLLER_MAPPING_PRIORITY_USER);
slouken@8582
   927
slouken@8772
   928
            if (pchNewLine) {
slouken@8582
   929
                pUserMappings = pchNewLine + 1;
slouken@8772
   930
            } else {
slouken@8582
   931
                pUserMappings = NULL;
slouken@8772
   932
            }
slouken@8582
   933
        }
slouken@8582
   934
        SDL_free(pTempMappings);
slouken@8582
   935
    }
slouken@8582
   936
}
slouken@8582
   937
slouken@8582
   938
/*
slouken@8582
   939
 * Initialize the game controller system, mostly load our DB of controller config mappings
slouken@8582
   940
 */
slouken@8582
   941
int
slouken@8582
   942
SDL_GameControllerInit(void)
slouken@8582
   943
{
slouken@8582
   944
    int i = 0;
slouken@8582
   945
    const char *pMappingString = NULL;
slouken@8582
   946
    pMappingString = s_ControllerMappings[i];
slouken@8772
   947
    while (pMappingString) {
slouken@10605
   948
        SDL_PrivateGameControllerAddMapping(pMappingString, SDL_CONTROLLER_MAPPING_PRIORITY_DEFAULT);
slouken@8582
   949
slouken@8582
   950
        i++;
slouken@8582
   951
        pMappingString = s_ControllerMappings[i];
slouken@8582
   952
    }
slouken@8582
   953
slouken@8582
   954
    /* load in any user supplied config */
slouken@8582
   955
    SDL_GameControllerLoadHints();
slouken@8582
   956
slouken@8582
   957
    /* watch for joy events and fire controller ones if needed */
slouken@8772
   958
    SDL_AddEventWatch(SDL_GameControllerEventWatcher, NULL);
slouken@8582
   959
slouken@8067
   960
    /* Send added events for controllers currently attached */
slouken@8067
   961
    for (i = 0; i < SDL_NumJoysticks(); ++i) {
slouken@8067
   962
        if (SDL_IsGameController(i)) {
slouken@8067
   963
            SDL_Event deviceevent;
slouken@8067
   964
            deviceevent.type = SDL_CONTROLLERDEVICEADDED;
slouken@8067
   965
            deviceevent.cdevice.which = i;
slouken@8067
   966
            SDL_PushEvent(&deviceevent);
slouken@8067
   967
        }
slouken@8067
   968
    }
slouken@8067
   969
slouken@8582
   970
    return (0);
slouken@8582
   971
}
slouken@8582
   972
slouken@8582
   973
slouken@8582
   974
/*
slouken@8582
   975
 * Get the implementation dependent name of a controller
slouken@8582
   976
 */
slouken@8582
   977
const char *
slouken@8582
   978
SDL_GameControllerNameForIndex(int device_index)
slouken@8582
   979
{
slouken@8582
   980
    ControllerMapping_t *pSupportedController =  SDL_PrivateGetControllerMapping(device_index);
slouken@8772
   981
    if (pSupportedController) {
slouken@8582
   982
        return pSupportedController->name;
slouken@8582
   983
    }
slouken@8582
   984
    return NULL;
slouken@8582
   985
}
slouken@8582
   986
slouken@8582
   987
slouken@8582
   988
/*
slouken@8582
   989
 * Return 1 if the joystick at this device index is a supported controller
slouken@8582
   990
 */
slouken@8582
   991
SDL_bool
slouken@8582
   992
SDL_IsGameController(int device_index)
slouken@8582
   993
{
slouken@8582
   994
    ControllerMapping_t *pSupportedController =  SDL_PrivateGetControllerMapping(device_index);
slouken@8772
   995
    if (pSupportedController) {
slouken@8582
   996
        return SDL_TRUE;
slouken@8582
   997
    }
slouken@8582
   998
slouken@8582
   999
    return SDL_FALSE;
slouken@8582
  1000
}
slouken@8582
  1001
slouken@8582
  1002
/*
slouken@8582
  1003
 * Open a controller for use - the index passed as an argument refers to
slouken@8582
  1004
 * the N'th controller on the system.  This index is the value which will
slouken@8582
  1005
 * identify this controller in future controller events.
slouken@8582
  1006
 *
slouken@8582
  1007
 * This function returns a controller identifier, or NULL if an error occurred.
slouken@8582
  1008
 */
slouken@8582
  1009
SDL_GameController *
slouken@8582
  1010
SDL_GameControllerOpen(int device_index)
slouken@8582
  1011
{
slouken@8582
  1012
    SDL_GameController *gamecontroller;
slouken@8582
  1013
    SDL_GameController *gamecontrollerlist;
slouken@8582
  1014
    ControllerMapping_t *pSupportedController = NULL;
slouken@8582
  1015
slouken@8582
  1016
    if ((device_index < 0) || (device_index >= SDL_NumJoysticks())) {
slouken@8582
  1017
        SDL_SetError("There are %d joysticks available", SDL_NumJoysticks());
slouken@8582
  1018
        return (NULL);
slouken@8582
  1019
    }
slouken@8582
  1020
slouken@8582
  1021
    gamecontrollerlist = SDL_gamecontrollers;
slouken@8582
  1022
    /* If the controller is already open, return it */
slouken@8772
  1023
    while (gamecontrollerlist) {
slouken@8772
  1024
        if (SDL_SYS_GetInstanceIdOfDeviceIndex(device_index) == gamecontrollerlist->joystick->instance_id) {
slouken@8582
  1025
                gamecontroller = gamecontrollerlist;
slouken@8582
  1026
                ++gamecontroller->ref_count;
slouken@8582
  1027
                return (gamecontroller);
slouken@8582
  1028
        }
slouken@8582
  1029
        gamecontrollerlist = gamecontrollerlist->next;
slouken@8582
  1030
    }
slouken@8582
  1031
slouken@8582
  1032
    /* Find a controller mapping */
slouken@8582
  1033
    pSupportedController =  SDL_PrivateGetControllerMapping(device_index);
slouken@8772
  1034
    if (!pSupportedController) {
slouken@8772
  1035
        SDL_SetError("Couldn't find mapping for device (%d)", device_index);
slouken@8582
  1036
        return (NULL);
slouken@8582
  1037
    }
slouken@8582
  1038
slouken@8582
  1039
    /* Create and initialize the joystick */
slouken@8582
  1040
    gamecontroller = (SDL_GameController *) SDL_malloc((sizeof *gamecontroller));
slouken@8582
  1041
    if (gamecontroller == NULL) {
slouken@8582
  1042
        SDL_OutOfMemory();
slouken@8582
  1043
        return NULL;
slouken@8582
  1044
    }
slouken@8582
  1045
slouken@8582
  1046
    SDL_memset(gamecontroller, 0, (sizeof *gamecontroller));
slouken@8582
  1047
    gamecontroller->joystick = SDL_JoystickOpen(device_index);
slouken@8772
  1048
    if (!gamecontroller->joystick) {
slouken@8582
  1049
        SDL_free(gamecontroller);
slouken@8582
  1050
        return NULL;
slouken@8582
  1051
    }
slouken@8582
  1052
slouken@8772
  1053
    SDL_PrivateLoadButtonMapping(&gamecontroller->mapping, pSupportedController->guid, pSupportedController->name, pSupportedController->mapping);
slouken@8582
  1054
slouken@10476
  1055
    /* The triggers are mapped from -32768 to 32767, where -32768 is the 'unpressed' value */
slouken@10476
  1056
    {
slouken@10476
  1057
        int leftTriggerMapping = gamecontroller->mapping.axes[SDL_CONTROLLER_AXIS_TRIGGERLEFT];
slouken@10476
  1058
        int rightTriggerMapping = gamecontroller->mapping.axes[SDL_CONTROLLER_AXIS_TRIGGERRIGHT];
slouken@10476
  1059
        if (leftTriggerMapping >= 0) {
slouken@10477
  1060
            gamecontroller->joystick->axes[leftTriggerMapping] =
slouken@10477
  1061
            gamecontroller->joystick->axes_zero[leftTriggerMapping] = (Sint16)-32768;
slouken@10476
  1062
        }
slouken@10476
  1063
        if (rightTriggerMapping >= 0) {
slouken@10477
  1064
            gamecontroller->joystick->axes[rightTriggerMapping] =
slouken@10477
  1065
            gamecontroller->joystick->axes_zero[rightTriggerMapping] = (Sint16)-32768;
slouken@10476
  1066
        }
slouken@10476
  1067
    }
slouken@10476
  1068
slouken@8582
  1069
    /* Add joystick to list */
slouken@8582
  1070
    ++gamecontroller->ref_count;
slouken@8582
  1071
    /* Link the joystick in the list */
slouken@8582
  1072
    gamecontroller->next = SDL_gamecontrollers;
slouken@8582
  1073
    SDL_gamecontrollers = gamecontroller;
slouken@8582
  1074
slouken@8772
  1075
    SDL_SYS_JoystickUpdate(gamecontroller->joystick);
slouken@8582
  1076
slouken@8582
  1077
    return (gamecontroller);
slouken@8582
  1078
}
slouken@8582
  1079
slouken@8582
  1080
/*
slouken@8582
  1081
 * Manually pump for controller updates.
slouken@8582
  1082
 */
slouken@8582
  1083
void
slouken@8582
  1084
SDL_GameControllerUpdate(void)
slouken@8582
  1085
{
slouken@8582
  1086
    /* Just for API completeness; the joystick API does all the work. */
slouken@8582
  1087
    SDL_JoystickUpdate();
slouken@8582
  1088
}
slouken@8582
  1089
slouken@8582
  1090
slouken@8582
  1091
/*
slouken@8582
  1092
 * Get the current state of an axis control on a controller
slouken@8582
  1093
 */
slouken@8582
  1094
Sint16
slouken@8582
  1095
SDL_GameControllerGetAxis(SDL_GameController * gamecontroller, SDL_GameControllerAxis axis)
slouken@8582
  1096
{
slouken@8772
  1097
    if (!gamecontroller)
slouken@8582
  1098
        return 0;
slouken@8582
  1099
slouken@8772
  1100
    if (gamecontroller->mapping.axes[axis] >= 0) {
slouken@8772
  1101
        Sint16 value = (SDL_JoystickGetAxis(gamecontroller->joystick, gamecontroller->mapping.axes[axis]));
slouken@8772
  1102
        switch (axis) {
slouken@8582
  1103
            case SDL_CONTROLLER_AXIS_TRIGGERLEFT:
slouken@8582
  1104
            case SDL_CONTROLLER_AXIS_TRIGGERRIGHT:
slouken@10476
  1105
                /* Shift it to be 0 - 32767 */
slouken@8582
  1106
                value = value / 2 + 16384;
slouken@8582
  1107
            default:
slouken@8582
  1108
                break;
slouken@8582
  1109
        }
slouken@8582
  1110
        return value;
slouken@8772
  1111
    } else if (gamecontroller->mapping.buttonasaxis[axis] >= 0) {
slouken@8582
  1112
        Uint8 value;
slouken@8772
  1113
        value = SDL_JoystickGetButton(gamecontroller->joystick, gamecontroller->mapping.buttonasaxis[axis]);
slouken@8772
  1114
        if (value > 0)
slouken@8582
  1115
            return 32767;
slouken@8582
  1116
        return 0;
slouken@8582
  1117
    }
slouken@8582
  1118
    return 0;
slouken@8582
  1119
}
slouken@8582
  1120
slouken@8582
  1121
slouken@8582
  1122
/*
slouken@8582
  1123
 * Get the current state of a button on a controller
slouken@8582
  1124
 */
slouken@8582
  1125
Uint8
slouken@8582
  1126
SDL_GameControllerGetButton(SDL_GameController * gamecontroller, SDL_GameControllerButton button)
slouken@8582
  1127
{
slouken@8772
  1128
    if (!gamecontroller)
slouken@8582
  1129
        return 0;
slouken@8582
  1130
slouken@8772
  1131
    if (gamecontroller->mapping.buttons[button] >= 0) {
slouken@8772
  1132
        return (SDL_JoystickGetButton(gamecontroller->joystick, gamecontroller->mapping.buttons[button]));
slouken@8772
  1133
    } else if (gamecontroller->mapping.axesasbutton[button] >= 0) {
slouken@8582
  1134
        Sint16 value;
slouken@8772
  1135
        value = SDL_JoystickGetAxis(gamecontroller->joystick, gamecontroller->mapping.axesasbutton[button]);
slouken@8772
  1136
        if (ABS(value) > 32768/2)
slouken@8582
  1137
            return 1;
slouken@8582
  1138
        return 0;
slouken@8772
  1139
    } else if (gamecontroller->mapping.hatasbutton[button].hat >= 0) {
slouken@8582
  1140
        Uint8 value;
slouken@8772
  1141
        value = SDL_JoystickGetHat(gamecontroller->joystick, gamecontroller->mapping.hatasbutton[button].hat);
slouken@8582
  1142
slouken@8772
  1143
        if (value & gamecontroller->mapping.hatasbutton[button].mask)
slouken@8582
  1144
            return 1;
slouken@8582
  1145
        return 0;
slouken@8582
  1146
    }
slouken@8582
  1147
slouken@8582
  1148
    return 0;
slouken@8582
  1149
}
slouken@8582
  1150
slouken@10595
  1151
const char *
slouken@10595
  1152
SDL_GameControllerName(SDL_GameController * gamecontroller)
slouken@10595
  1153
{
slouken@10595
  1154
    if (!gamecontroller)
slouken@10595
  1155
        return NULL;
slouken@10595
  1156
slouken@10595
  1157
    return gamecontroller->mapping.name;
slouken@10595
  1158
}
slouken@10595
  1159
slouken@10595
  1160
Uint16
slouken@10595
  1161
SDL_GameControllerGetVendor(SDL_GameController * gamecontroller)
slouken@10595
  1162
{
slouken@10595
  1163
    return SDL_JoystickGetVendor(SDL_GameControllerGetJoystick(gamecontroller));
slouken@10595
  1164
}
slouken@10595
  1165
slouken@10595
  1166
Uint16
slouken@10595
  1167
SDL_GameControllerGetProduct(SDL_GameController * gamecontroller)
slouken@10595
  1168
{
slouken@10595
  1169
    return SDL_JoystickGetProduct(SDL_GameControllerGetJoystick(gamecontroller));
slouken@10595
  1170
}
slouken@10595
  1171
slouken@10595
  1172
Uint16
slouken@10595
  1173
SDL_GameControllerGetProductVersion(SDL_GameController * gamecontroller)
slouken@10595
  1174
{
slouken@10595
  1175
    return SDL_JoystickGetProductVersion(SDL_GameControllerGetJoystick(gamecontroller));
slouken@10595
  1176
}
slouken@10595
  1177
slouken@8582
  1178
/*
slouken@8582
  1179
 * Return if the joystick in question is currently attached to the system,
slouken@8582
  1180
 *  \return 0 if not plugged in, 1 if still present.
slouken@8582
  1181
 */
slouken@8582
  1182
SDL_bool
slouken@8772
  1183
SDL_GameControllerGetAttached(SDL_GameController * gamecontroller)
slouken@8582
  1184
{
slouken@8772
  1185
    if (!gamecontroller)
slouken@8582
  1186
        return SDL_FALSE;
slouken@8582
  1187
slouken@8582
  1188
    return SDL_JoystickGetAttached(gamecontroller->joystick);
slouken@8582
  1189
}
slouken@8582
  1190
slouken@8582
  1191
/*
slouken@8582
  1192
 * Get the joystick for this controller
slouken@8582
  1193
 */
slouken@8582
  1194
SDL_Joystick *SDL_GameControllerGetJoystick(SDL_GameController * gamecontroller)
slouken@8582
  1195
{
slouken@8772
  1196
    if (!gamecontroller)
slouken@8582
  1197
        return NULL;
slouken@8582
  1198
slouken@8582
  1199
    return gamecontroller->joystick;
slouken@8582
  1200
}
slouken@8582
  1201
icculus@9916
  1202
icculus@9916
  1203
/*
icculus@9916
  1204
 * Find the SDL_GameController that owns this instance id
icculus@9916
  1205
 */
icculus@9916
  1206
SDL_GameController *
icculus@9916
  1207
SDL_GameControllerFromInstanceID(SDL_JoystickID joyid)
icculus@9916
  1208
{
icculus@9916
  1209
    SDL_GameController *gamecontroller = SDL_gamecontrollers;
icculus@9916
  1210
    while (gamecontroller) {
icculus@9916
  1211
        if (gamecontroller->joystick->instance_id == joyid) {
icculus@9916
  1212
            return gamecontroller;
icculus@9916
  1213
        }
icculus@9916
  1214
        gamecontroller = gamecontroller->next;
icculus@9916
  1215
    }
icculus@9916
  1216
icculus@9916
  1217
    return NULL;
icculus@9916
  1218
}
icculus@9916
  1219
icculus@9916
  1220
slouken@8582
  1221
/**
slouken@8582
  1222
 * Get the SDL joystick layer binding for this controller axis mapping
slouken@8582
  1223
 */
slouken@8582
  1224
SDL_GameControllerButtonBind SDL_GameControllerGetBindForAxis(SDL_GameController * gamecontroller, SDL_GameControllerAxis axis)
slouken@8582
  1225
{
slouken@8582
  1226
    SDL_GameControllerButtonBind bind;
slouken@8772
  1227
    SDL_memset(&bind, 0x0, sizeof(bind));
slouken@8582
  1228
slouken@8772
  1229
    if (!gamecontroller || axis == SDL_CONTROLLER_AXIS_INVALID)
slouken@8582
  1230
        return bind;
slouken@8582
  1231
slouken@8772
  1232
    if (gamecontroller->mapping.axes[axis] >= 0) {
slouken@8582
  1233
        bind.bindType = SDL_CONTROLLER_BINDTYPE_AXIS;
slouken@8582
  1234
        bind.value.button = gamecontroller->mapping.axes[axis];
slouken@8772
  1235
    } else if (gamecontroller->mapping.buttonasaxis[axis] >= 0) {
slouken@8582
  1236
        bind.bindType = SDL_CONTROLLER_BINDTYPE_BUTTON;
slouken@8582
  1237
        bind.value.button = gamecontroller->mapping.buttonasaxis[axis];
slouken@8582
  1238
    }
slouken@8582
  1239
slouken@8582
  1240
    return bind;
slouken@8582
  1241
}
slouken@8582
  1242
slouken@8582
  1243
slouken@8582
  1244
/**
slouken@8582
  1245
 * Get the SDL joystick layer binding for this controller button mapping
slouken@8582
  1246
 */
slouken@8582
  1247
SDL_GameControllerButtonBind SDL_GameControllerGetBindForButton(SDL_GameController * gamecontroller, SDL_GameControllerButton button)
slouken@8582
  1248
{
slouken@8582
  1249
    SDL_GameControllerButtonBind bind;
slouken@8772
  1250
    SDL_memset(&bind, 0x0, sizeof(bind));
slouken@8582
  1251
slouken@8772
  1252
    if (!gamecontroller || button == SDL_CONTROLLER_BUTTON_INVALID)
slouken@8582
  1253
        return bind;
slouken@8582
  1254
slouken@8772
  1255
    if (gamecontroller->mapping.buttons[button] >= 0) {
slouken@8582
  1256
        bind.bindType = SDL_CONTROLLER_BINDTYPE_BUTTON;
slouken@8582
  1257
        bind.value.button = gamecontroller->mapping.buttons[button];
slouken@8772
  1258
    } else if (gamecontroller->mapping.axesasbutton[button] >= 0) {
slouken@8582
  1259
        bind.bindType = SDL_CONTROLLER_BINDTYPE_AXIS;
slouken@8582
  1260
        bind.value.axis = gamecontroller->mapping.axesasbutton[button];
slouken@8772
  1261
    } else if (gamecontroller->mapping.hatasbutton[button].hat >= 0) {
slouken@8582
  1262
        bind.bindType = SDL_CONTROLLER_BINDTYPE_HAT;
slouken@8582
  1263
        bind.value.hat.hat = gamecontroller->mapping.hatasbutton[button].hat;
slouken@8582
  1264
        bind.value.hat.hat_mask = gamecontroller->mapping.hatasbutton[button].mask;
slouken@8582
  1265
    }
slouken@8582
  1266
slouken@8582
  1267
    return bind;
slouken@8582
  1268
}
slouken@8582
  1269
slouken@8582
  1270
slouken@8582
  1271
void
slouken@8582
  1272
SDL_GameControllerClose(SDL_GameController * gamecontroller)
slouken@8582
  1273
{
slouken@8582
  1274
    SDL_GameController *gamecontrollerlist, *gamecontrollerlistprev;
slouken@8582
  1275
slouken@8772
  1276
    if (!gamecontroller)
slouken@8582
  1277
        return;
slouken@8582
  1278
slouken@8582
  1279
    /* First decrement ref count */
slouken@8582
  1280
    if (--gamecontroller->ref_count > 0) {
slouken@8582
  1281
        return;
slouken@8582
  1282
    }
slouken@8582
  1283
slouken@8772
  1284
    SDL_JoystickClose(gamecontroller->joystick);
slouken@8582
  1285
slouken@8582
  1286
    gamecontrollerlist = SDL_gamecontrollers;
slouken@8582
  1287
    gamecontrollerlistprev = NULL;
slouken@8772
  1288
    while (gamecontrollerlist) {
slouken@8772
  1289
        if (gamecontroller == gamecontrollerlist) {
slouken@8772
  1290
            if (gamecontrollerlistprev) {
slouken@8582
  1291
                /* unlink this entry */
slouken@8582
  1292
                gamecontrollerlistprev->next = gamecontrollerlist->next;
slouken@8772
  1293
            } else {
slouken@8582
  1294
                SDL_gamecontrollers = gamecontroller->next;
slouken@8582
  1295
            }
slouken@8582
  1296
slouken@8582
  1297
            break;
slouken@8582
  1298
        }
slouken@8582
  1299
        gamecontrollerlistprev = gamecontrollerlist;
slouken@8582
  1300
        gamecontrollerlist = gamecontrollerlist->next;
slouken@8582
  1301
    }
slouken@8582
  1302
slouken@8582
  1303
    SDL_free(gamecontroller);
slouken@8582
  1304
}
slouken@8582
  1305
slouken@8582
  1306
slouken@8582
  1307
/*
slouken@8582
  1308
 * Quit the controller subsystem
slouken@8582
  1309
 */
slouken@8582
  1310
void
slouken@8582
  1311
SDL_GameControllerQuit(void)
slouken@8582
  1312
{
slouken@8582
  1313
    ControllerMapping_t *pControllerMap;
slouken@8772
  1314
    while (SDL_gamecontrollers) {
slouken@8582
  1315
        SDL_gamecontrollers->ref_count = 1;
slouken@8582
  1316
        SDL_GameControllerClose(SDL_gamecontrollers);
slouken@8582
  1317
    }
slouken@8582
  1318
slouken@8772
  1319
    while (s_pSupportedControllers) {
slouken@8582
  1320
        pControllerMap = s_pSupportedControllers;
slouken@8582
  1321
        s_pSupportedControllers = s_pSupportedControllers->next;
slouken@8772
  1322
        SDL_free(pControllerMap->name);
slouken@8772
  1323
        SDL_free(pControllerMap->mapping);
slouken@8772
  1324
        SDL_free(pControllerMap);
slouken@8582
  1325
    }
slouken@8582
  1326
slouken@8772
  1327
    SDL_DelEventWatch(SDL_GameControllerEventWatcher, NULL);
slouken@8582
  1328
slouken@8582
  1329
}
slouken@8582
  1330
slouken@8582
  1331
/*
slouken@8582
  1332
 * Event filter to transform joystick events into appropriate game controller ones
slouken@8582
  1333
 */
slouken@8582
  1334
int
slouken@8582
  1335
SDL_PrivateGameControllerAxis(SDL_GameController * gamecontroller, SDL_GameControllerAxis axis, Sint16 value)
slouken@8582
  1336
{
slouken@8582
  1337
    int posted;
slouken@8582
  1338
slouken@8582
  1339
    /* translate the event, if desired */
slouken@8582
  1340
    posted = 0;
slouken@8582
  1341
#if !SDL_EVENTS_DISABLED
slouken@8582
  1342
    if (SDL_GetEventState(SDL_CONTROLLERAXISMOTION) == SDL_ENABLE) {
slouken@8582
  1343
        SDL_Event event;
slouken@8582
  1344
        event.type = SDL_CONTROLLERAXISMOTION;
slouken@8582
  1345
        event.caxis.which = gamecontroller->joystick->instance_id;
slouken@8582
  1346
        event.caxis.axis = axis;
slouken@8582
  1347
        event.caxis.value = value;
slouken@8582
  1348
        posted = SDL_PushEvent(&event) == 1;
slouken@8582
  1349
    }
slouken@8582
  1350
#endif /* !SDL_EVENTS_DISABLED */
slouken@8582
  1351
    return (posted);
slouken@8582
  1352
}
slouken@8582
  1353
slouken@8582
  1354
slouken@8582
  1355
/*
slouken@8582
  1356
 * Event filter to transform joystick events into appropriate game controller ones
slouken@8582
  1357
 */
slouken@8582
  1358
int
slouken@8582
  1359
SDL_PrivateGameControllerButton(SDL_GameController * gamecontroller, SDL_GameControllerButton button, Uint8 state)
slouken@8582
  1360
{
slouken@8582
  1361
    int posted;
slouken@8582
  1362
#if !SDL_EVENTS_DISABLED
slouken@8582
  1363
    SDL_Event event;
slouken@8582
  1364
slouken@8772
  1365
    if (button == SDL_CONTROLLER_BUTTON_INVALID)
slouken@8582
  1366
        return (0);
slouken@8582
  1367
slouken@8582
  1368
    switch (state) {
slouken@8582
  1369
    case SDL_PRESSED:
slouken@8582
  1370
        event.type = SDL_CONTROLLERBUTTONDOWN;
slouken@8582
  1371
        break;
slouken@8582
  1372
    case SDL_RELEASED:
slouken@8582
  1373
        event.type = SDL_CONTROLLERBUTTONUP;
slouken@8582
  1374
        break;
slouken@8582
  1375
    default:
slouken@8582
  1376
        /* Invalid state -- bail */
slouken@8582
  1377
        return (0);
slouken@8582
  1378
    }
slouken@8582
  1379
#endif /* !SDL_EVENTS_DISABLED */
slouken@8582
  1380
slouken@8582
  1381
    /* translate the event, if desired */
slouken@8582
  1382
    posted = 0;
slouken@8582
  1383
#if !SDL_EVENTS_DISABLED
slouken@8582
  1384
    if (SDL_GetEventState(event.type) == SDL_ENABLE) {
slouken@8582
  1385
        event.cbutton.which = gamecontroller->joystick->instance_id;
slouken@8582
  1386
        event.cbutton.button = button;
slouken@8582
  1387
        event.cbutton.state = state;
slouken@8582
  1388
        posted = SDL_PushEvent(&event) == 1;
slouken@8582
  1389
    }
slouken@8582
  1390
#endif /* !SDL_EVENTS_DISABLED */
slouken@8582
  1391
    return (posted);
slouken@8582
  1392
}
slouken@8582
  1393
slouken@8582
  1394
/*
slouken@8582
  1395
 * Turn off controller events
slouken@8582
  1396
 */
slouken@8582
  1397
int
slouken@8582
  1398
SDL_GameControllerEventState(int state)
slouken@8582
  1399
{
slouken@8582
  1400
#if SDL_EVENTS_DISABLED
slouken@8582
  1401
    return SDL_IGNORE;
slouken@8582
  1402
#else
slouken@8582
  1403
    const Uint32 event_list[] = {
slouken@8582
  1404
        SDL_CONTROLLERAXISMOTION, SDL_CONTROLLERBUTTONDOWN, SDL_CONTROLLERBUTTONUP,
slouken@8582
  1405
        SDL_CONTROLLERDEVICEADDED, SDL_CONTROLLERDEVICEREMOVED, SDL_CONTROLLERDEVICEREMAPPED,
slouken@8582
  1406
    };
slouken@8582
  1407
    unsigned int i;
slouken@8582
  1408
slouken@8582
  1409
    switch (state) {
slouken@8582
  1410
    case SDL_QUERY:
slouken@8582
  1411
        state = SDL_IGNORE;
slouken@8582
  1412
        for (i = 0; i < SDL_arraysize(event_list); ++i) {
slouken@8582
  1413
            state = SDL_EventState(event_list[i], SDL_QUERY);
slouken@8582
  1414
            if (state == SDL_ENABLE) {
slouken@8582
  1415
                break;
slouken@8582
  1416
            }
slouken@8582
  1417
        }
slouken@8582
  1418
        break;
slouken@8582
  1419
    default:
slouken@8582
  1420
        for (i = 0; i < SDL_arraysize(event_list); ++i) {
slouken@8582
  1421
            SDL_EventState(event_list[i], state);
slouken@8582
  1422
        }
slouken@8582
  1423
        break;
slouken@8582
  1424
    }
slouken@8582
  1425
    return (state);
slouken@8582
  1426
#endif /* SDL_EVENTS_DISABLED */
slouken@8582
  1427
}
slouken@8582
  1428
slouken@8582
  1429
/* vi: set ts=4 sw=4 expandtab: */