From 30f41c02aec763d32e62351452da9ef582bc3472 Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Fri, 6 Mar 2026 13:30:59 -0800 Subject: Move contrib libraries to contrib repo --- .../input/02-joystick-events/joystick-events.c | 232 --------------------- 1 file changed, 232 deletions(-) delete mode 100644 contrib/SDL-3.2.8/examples/input/02-joystick-events/joystick-events.c (limited to 'contrib/SDL-3.2.8/examples/input/02-joystick-events/joystick-events.c') diff --git a/contrib/SDL-3.2.8/examples/input/02-joystick-events/joystick-events.c b/contrib/SDL-3.2.8/examples/input/02-joystick-events/joystick-events.c deleted file mode 100644 index cc01d84..0000000 --- a/contrib/SDL-3.2.8/examples/input/02-joystick-events/joystick-events.c +++ /dev/null @@ -1,232 +0,0 @@ -/* - * This example code looks for joystick input in the event handler, and - * reports any changes as a flood of info. - * - * This code is public domain. Feel free to use it for any purpose! - */ - -/* Joysticks are low-level interfaces: there's something with a bunch of - buttons, axes and hats, in no understood order or position. This is - a flexible interface, but you'll need to build some sort of configuration - UI to let people tell you what button, etc, does what. On top of this - interface, SDL offers the "gamepad" API, which works with lots of devices, - and knows how to map arbitrary buttons and such to look like an - Xbox/PlayStation/etc gamepad. This is easier, and better, for many games, - but isn't necessarily a good fit for complex apps and hardware. A flight - simulator, a realistic racing game, etc, might want this interface instead - of gamepads. */ - -#define SDL_MAIN_USE_CALLBACKS 1 /* use the callbacks instead of main() */ -#include -#include - -/* We will use this renderer to draw into this window every frame. */ -static SDL_Window *window = NULL; -static SDL_Renderer *renderer = NULL; -static SDL_Color colors[64]; - -#define MOTION_EVENT_COOLDOWN 40 - -typedef struct EventMessage -{ - char *str; - SDL_Color color; - Uint64 start_ticks; - struct EventMessage *next; -} EventMessage; - -static EventMessage messages; -static EventMessage *messages_tail = &messages; - -static const char *hat_state_string(Uint8 state) -{ - switch (state) { - case SDL_HAT_CENTERED: return "CENTERED"; - case SDL_HAT_UP: return "UP"; - case SDL_HAT_RIGHT: return "RIGHT"; - case SDL_HAT_DOWN: return "DOWN"; - case SDL_HAT_LEFT: return "LEFT"; - case SDL_HAT_RIGHTUP: return "RIGHT+UP"; - case SDL_HAT_RIGHTDOWN: return "RIGHT+DOWN"; - case SDL_HAT_LEFTUP: return "LEFT+UP"; - case SDL_HAT_LEFTDOWN: return "LEFT+DOWN"; - default: break; - } - return "UNKNOWN"; -} - -static const char *battery_state_string(SDL_PowerState state) -{ - switch (state) { - case SDL_POWERSTATE_ERROR: return "ERROR"; - case SDL_POWERSTATE_UNKNOWN: return "UNKNOWN"; - case SDL_POWERSTATE_ON_BATTERY: return "ON BATTERY"; - case SDL_POWERSTATE_NO_BATTERY: return "NO BATTERY"; - case SDL_POWERSTATE_CHARGING: return "CHARGING"; - case SDL_POWERSTATE_CHARGED: return "CHARGED"; - default: break; - } - return "UNKNOWN"; -} - -static void add_message(SDL_JoystickID jid, const char *fmt, ...) -{ - const SDL_Color *color = &colors[((size_t) jid) % SDL_arraysize(colors)]; - EventMessage *msg = NULL; - char *str = NULL; - va_list ap; - - msg = (EventMessage *) SDL_calloc(1, sizeof (*msg)); - if (!msg) { - return; // oh well. - } - - va_start(ap, fmt); - SDL_vasprintf(&str, fmt, ap); - va_end(ap); - if (!str) { - SDL_free(msg); - return; // oh well. - } - - msg->str = str; - SDL_copyp(&msg->color, color); - msg->start_ticks = SDL_GetTicks(); - msg->next = NULL; - - messages_tail->next = msg; - messages_tail = msg; -} - - -/* This function runs once at startup. */ -SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[]) -{ - int i; - - SDL_SetAppMetadata("Example Input Joystick Events", "1.0", "com.example.input-joystick-events"); - - if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK)) { - SDL_Log("Couldn't initialize SDL: %s", SDL_GetError()); - return SDL_APP_FAILURE; - } - - if (!SDL_CreateWindowAndRenderer("examples/input/joystick-events", 640, 480, 0, &window, &renderer)) { - SDL_Log("Couldn't create window/renderer: %s", SDL_GetError()); - return SDL_APP_FAILURE; - } - - colors[0].r = colors[0].g = colors[0].b = colors[0].a = 255; - for (i = 1; i < SDL_arraysize(colors); i++) { - colors[i].r = SDL_rand(255); - colors[i].g = SDL_rand(255); - colors[i].b = SDL_rand(255); - colors[i].a = 255; - } - - add_message(0, "Please plug in a joystick."); - - return SDL_APP_CONTINUE; /* carry on with the program! */ -} - -/* This function runs when a new event (mouse input, keypresses, etc) occurs. */ -SDL_AppResult SDL_AppEvent(void *appstate, SDL_Event *event) -{ - if (event->type == SDL_EVENT_QUIT) { - return SDL_APP_SUCCESS; /* end the program, reporting success to the OS. */ - } else if (event->type == SDL_EVENT_JOYSTICK_ADDED) { - /* this event is sent for each hotplugged stick, but also each already-connected joystick during SDL_Init(). */ - const SDL_JoystickID which = event->jdevice.which; - SDL_Joystick *joystick = SDL_OpenJoystick(which); - if (!joystick) { - add_message(which, "Joystick #%u add, but not opened: %s", (unsigned int) which, SDL_GetError()); - } else { - add_message(which, "Joystick #%u ('%s') added", (unsigned int) which, SDL_GetJoystickName(joystick)); - } - } else if (event->type == SDL_EVENT_JOYSTICK_REMOVED) { - const SDL_JoystickID which = event->jdevice.which; - SDL_Joystick *joystick = SDL_GetJoystickFromID(which); - if (joystick) { - SDL_CloseJoystick(joystick); /* the joystick was unplugged. */ - } - add_message(which, "Joystick #%u removed", (unsigned int) which); - } else if (event->type == SDL_EVENT_JOYSTICK_AXIS_MOTION) { - static Uint64 axis_motion_cooldown_time = 0; /* these are spammy, only show every X milliseconds. */ - const Uint64 now = SDL_GetTicks(); - if (now >= axis_motion_cooldown_time) { - const SDL_JoystickID which = event->jaxis.which; - axis_motion_cooldown_time = now + MOTION_EVENT_COOLDOWN; - add_message(which, "Joystick #%u axis %d -> %d", (unsigned int) which, (int) event->jaxis.axis, (int) event->jaxis.value); - } - } else if (event->type == SDL_EVENT_JOYSTICK_BALL_MOTION) { - static Uint64 ball_motion_cooldown_time = 0; /* these are spammy, only show every X milliseconds. */ - const Uint64 now = SDL_GetTicks(); - if (now >= ball_motion_cooldown_time) { - const SDL_JoystickID which = event->jball.which; - ball_motion_cooldown_time = now + MOTION_EVENT_COOLDOWN; - add_message(which, "Joystick #%u ball %d -> %d, %d", (unsigned int) which, (int) event->jball.ball, (int) event->jball.xrel, (int) event->jball.yrel); - } - } else if (event->type == SDL_EVENT_JOYSTICK_HAT_MOTION) { - const SDL_JoystickID which = event->jhat.which; - add_message(which, "Joystick #%u hat %d -> %s", (unsigned int) which, (int) event->jhat.hat, hat_state_string(event->jhat.value)); - } else if ((event->type == SDL_EVENT_JOYSTICK_BUTTON_UP) || (event->type == SDL_EVENT_JOYSTICK_BUTTON_DOWN)) { - const SDL_JoystickID which = event->jbutton.which; - add_message(which, "Joystick #%u button %d -> %s", (unsigned int) which, (int) event->jbutton.button, event->jbutton.down ? "PRESSED" : "RELEASED"); - } else if (event->type == SDL_EVENT_JOYSTICK_BATTERY_UPDATED) { - const SDL_JoystickID which = event->jbattery.which; - add_message(which, "Joystick #%u battery -> %s - %d%%", (unsigned int) which, battery_state_string(event->jbattery.state), event->jbattery.percent); - } - - return SDL_APP_CONTINUE; /* carry on with the program! */ -} - -/* This function runs once per frame, and is the heart of the program. */ -SDL_AppResult SDL_AppIterate(void *appstate) -{ - const Uint64 now = SDL_GetTicks(); - const float msg_lifetime = 3500.0f; /* milliseconds a message lives for. */ - EventMessage *msg = messages.next; - float prev_y = 0.0f; - int winw = 640, winh = 480; - - SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255); - SDL_RenderClear(renderer); - SDL_GetWindowSize(window, &winw, &winh); - - while (msg) { - float x, y; - const float life_percent = ((float) (now - msg->start_ticks)) / msg_lifetime; - if (life_percent >= 1.0f) { /* msg is done. */ - messages.next = msg->next; - if (messages_tail == msg) { - messages_tail = &messages; - } - SDL_free(msg->str); - SDL_free(msg); - msg = messages.next; - continue; - } - x = (((float) winw) - (SDL_strlen(msg->str) * SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE)) / 2.0f; - y = ((float) winh) * life_percent; - if ((prev_y != 0.0f) && ((prev_y - y) < ((float) SDL_DEBUG_TEXT_FONT_CHARACTER_SIZE))) { - msg->start_ticks = now; - break; // wait for the previous message to tick up a little. - } - - SDL_SetRenderDrawColor(renderer, msg->color.r, msg->color.g, msg->color.b, (Uint8) (((float) msg->color.a) * (1.0f - life_percent))); - SDL_RenderDebugText(renderer, x, y, msg->str); - - prev_y = y; - msg = msg->next; - } - - SDL_RenderPresent(renderer); - - return SDL_APP_CONTINUE; /* carry on with the program! */ -} - -/* This function runs once at shutdown. */ -void SDL_AppQuit(void *appstate, SDL_AppResult result) -{ - /* SDL will clean up the window/renderer for us. We let the joysticks leak. */ -} -- cgit v1.2.3