138 lines
4.9 KiB
C
138 lines
4.9 KiB
C
/*
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Copyright (C) 1997-2023 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.
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*/
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/* Simple program to test the SDL joystick hotplugging */
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#include <stdlib.h>
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#include <SDL3/SDL.h>
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#include <SDL3/SDL_main.h>
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int main(int argc, char *argv[])
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{
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int num_joysticks = 0;
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SDL_Joystick *joystick = NULL;
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SDL_Haptic *haptic = NULL;
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SDL_JoystickID instance = 0;
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SDL_bool keepGoing = SDL_TRUE;
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int i;
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SDL_bool enable_haptic = SDL_TRUE;
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Uint32 init_subsystems = SDL_INIT_VIDEO | SDL_INIT_JOYSTICK;
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for (i = 1; i < argc; ++i) {
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if (SDL_strcasecmp(argv[i], "--nohaptic") == 0) {
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enable_haptic = SDL_FALSE;
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}
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}
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if (enable_haptic) {
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init_subsystems |= SDL_INIT_HAPTIC;
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}
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/* Enable standard application logging */
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SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
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SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
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/* Initialize SDL (Note: video is required to start event loop) */
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if (SDL_Init(init_subsystems) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError());
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exit(1);
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}
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/*
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//SDL_CreateWindow("Dummy", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 128, 128, 0);
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*/
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SDL_free(SDL_GetJoysticks(&num_joysticks));
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SDL_Log("There are %d joysticks at startup\n", num_joysticks);
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if (enable_haptic) {
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SDL_Log("There are %d haptic devices at startup\n", SDL_NumHaptics());
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}
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while (keepGoing) {
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SDL_Event event;
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while (SDL_PollEvent(&event)) {
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switch (event.type) {
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case SDL_EVENT_QUIT:
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keepGoing = SDL_FALSE;
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break;
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case SDL_EVENT_JOYSTICK_ADDED:
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if (joystick != NULL) {
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SDL_Log("Only one joystick supported by this test\n");
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} else {
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joystick = SDL_OpenJoystick(event.jdevice.which);
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instance = event.jdevice.which;
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SDL_Log("Joy Added : %" SDL_PRIu32 " : %s\n", event.jdevice.which, SDL_GetJoystickName(joystick));
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if (enable_haptic) {
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if (SDL_JoystickIsHaptic(joystick)) {
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haptic = SDL_HapticOpenFromJoystick(joystick);
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if (haptic) {
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SDL_Log("Joy Haptic Opened\n");
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if (SDL_HapticRumbleInit(haptic) != 0) {
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SDL_Log("Could not init Rumble!: %s\n", SDL_GetError());
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SDL_HapticClose(haptic);
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haptic = NULL;
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}
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} else {
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SDL_Log("Joy haptic open FAILED!: %s\n", SDL_GetError());
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}
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} else {
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SDL_Log("No haptic found\n");
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}
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}
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}
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break;
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case SDL_EVENT_JOYSTICK_REMOVED:
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if (instance == event.jdevice.which) {
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SDL_Log("Joy Removed: %" SDL_PRIs32 "\n", event.jdevice.which);
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instance = 0;
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if (enable_haptic && haptic) {
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SDL_HapticClose(haptic);
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haptic = NULL;
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}
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SDL_CloseJoystick(joystick);
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joystick = NULL;
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} else {
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SDL_Log("Unknown joystick diconnected\n");
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}
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break;
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case SDL_EVENT_JOYSTICK_AXIS_MOTION:
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/*
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// SDL_Log("Axis Move: %d\n", event.jaxis.axis);
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*/
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if (enable_haptic) {
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SDL_HapticRumblePlay(haptic, 0.25, 250);
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}
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break;
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case SDL_EVENT_JOYSTICK_BUTTON_DOWN:
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SDL_Log("Button Press: %d\n", event.jbutton.button);
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if (enable_haptic && haptic) {
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SDL_HapticRumblePlay(haptic, 0.25, 250);
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}
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if (event.jbutton.button == 0) {
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SDL_Log("Exiting due to button press of button 0\n");
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keepGoing = SDL_FALSE;
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}
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break;
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case SDL_EVENT_JOYSTICK_BUTTON_UP:
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SDL_Log("Button Release: %d\n", event.jbutton.button);
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break;
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}
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}
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}
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SDL_Quit();
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return 0;
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}
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