SDL2 Windows Rumble Tester

README.md

Windows variant of https://github.com/brettchalupa/sdl_rumble since that didn't work as expected on Windows like it does on macOS and Linux.

Notes to self:

• Used Code::Blocks with mingw 64 bit
• SDL 2.26.3
• PS4 hint allows for DualShock 4 rumble without any special drivers

Learnings:

• XInput rumbles without issue with SDL2
• DualShock 4 (PS4 controller) requires a special hint to rumble with SDL2; curious what that does
• Nintendo Switch via 8BitDo Pro rumbles, but it's faint and seems off
• DirectInput doesn't rumble (I don't think it's supported)

main.cpp

#include <iostream>
#include <SDL.h>
#include <SDL_gamecontroller.h>
#include <SDL_joystick.h>

int main( int argc, char * argv[] )
{
    SDL_SetHint(SDL_HINT_JOYSTICK_RAWINPUT, "0");
    SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_PS4_RUMBLE, "1");
    if (SDL_Init(SDL_INIT_EVERYTHING) < 0)
    {
        fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
        exit(1);
    }

    SDL_GameControllerAddMappingsFromFile("gamecontrollerdb.txt");

    printf("%i joysticks were found.\n\n", SDL_NumJoysticks());

    int rumbleTime = 500;
    for(int i=0; i < SDL_NumJoysticks(); i++ )
    {
        printf("rumbling: %s\n", SDL_GameControllerNameForIndex(i));

        auto gamecontroller = SDL_GameControllerOpen(i);

        if (gamecontroller == nullptr)
            printf("ERROR\n");


        SDL_GameControllerUpdate();

        if (SDL_GameControllerRumble(gamecontroller, 0xFFFF * 3 / 4, 0xFFFF * 3 / 4, rumbleTime) != 0)
        {
            printf("Warning: Unable to start rumbling! %s\n", SDL_GetError());
        }


        SDL_Delay(rumbleTime);
    }


    SDL_Quit();
    return 0;
}