shithub: cstory

ref: 72a5f366547e12cab97eca00df1a09d4e178033e
dir: /external/SDL2/src/joystick/dummy/SDL_sysjoystick.c/

/*
  Simple DirectMedia Layer
  Copyright (C) 1997-2020 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_internal.h"

#if defined(SDL_JOYSTICK_DUMMY) || defined(SDL_JOYSTICK_DISABLED)

/* This is the dummy implementation of the SDL joystick API */

#include "SDL_joystick.h"
#include "../SDL_sysjoystick.h"
#include "../SDL_joystick_c.h"


static int
DUMMY_JoystickInit(void)
{
    return 0;
}

static int
DUMMY_JoystickGetCount(void)
{
    return 0;
}

static void
DUMMY_JoystickDetect(void)
{
}

static const char *
DUMMY_JoystickGetDeviceName(int device_index)
{
    return NULL;
}

static int
DUMMY_JoystickGetDevicePlayerIndex(int device_index)
{
    return -1;
}

static void
DUMMY_JoystickSetDevicePlayerIndex(int device_index, int player_index)
{
}

static SDL_JoystickGUID
DUMMY_JoystickGetDeviceGUID(int device_index)
{
    SDL_JoystickGUID guid;
    SDL_zero(guid);
    return guid;
}

static SDL_JoystickID
DUMMY_JoystickGetDeviceInstanceID(int device_index)
{
    return -1;
}

static int
DUMMY_JoystickOpen(SDL_Joystick * joystick, int device_index)
{
    return SDL_SetError("Logic error: No joysticks available");
}

static int
DUMMY_JoystickRumble(SDL_Joystick * joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
{
    return SDL_Unsupported();
}

static void
DUMMY_JoystickUpdate(SDL_Joystick * joystick)
{
}

static void
DUMMY_JoystickClose(SDL_Joystick * joystick)
{
}

static void
DUMMY_JoystickQuit(void)
{
}

SDL_JoystickDriver SDL_DUMMY_JoystickDriver =
{
    DUMMY_JoystickInit,
    DUMMY_JoystickGetCount,
    DUMMY_JoystickDetect,
    DUMMY_JoystickGetDeviceName,
    DUMMY_JoystickGetDevicePlayerIndex,
    DUMMY_JoystickSetDevicePlayerIndex,
    DUMMY_JoystickGetDeviceGUID,
    DUMMY_JoystickGetDeviceInstanceID,
    DUMMY_JoystickOpen,
    DUMMY_JoystickRumble,
    DUMMY_JoystickUpdate,
    DUMMY_JoystickClose,
    DUMMY_JoystickQuit,
};

#endif /* SDL_JOYSTICK_DUMMY || SDL_JOYSTICK_DISABLED */

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