minecraft-pi-docker/launcher/src/stubs/SDL.cpp

#include <stdlib.h>
#include <pthread.h>
#include <vector>

#include <SDL/SDL.h>

// SDL Is Replaced With GLFW

int SDL_Init(__attribute__((unused)) uint32_t flags) {
    return 0;
}

void SDL_Quit() {
    exit(EXIT_SUCCESS);
}

// Event Queue

static pthread_mutex_t queue_mutex = PTHREAD_MUTEX_INITIALIZER;
static std::vector<SDL_Event> queue;

int SDL_PollEvent(SDL_Event *event) {
    pthread_mutex_lock(&queue_mutex);
    int ret;
    if (queue.size() > 0) {
        *event = queue[0];
        queue.erase(queue.begin());
        ret = 1;
    } else {
        ret = 0;
    }
    pthread_mutex_unlock(&queue_mutex);
    return ret;
}

int SDL_PushEvent(SDL_Event *event) {
    pthread_mutex_lock(&queue_mutex);
    queue.push_back(*event);
    pthread_mutex_unlock(&queue_mutex);
    return 1;
}