minecraft-pi-reborn/mods/src/compat/compat.cpp
2024-05-15 05:06:36 -04:00

143 lines
4.1 KiB
C++

#include <unistd.h>
#include <csignal>
#include <cerrno>
#include <mods/compat/compat.h>
#include <mods/screenshot/screenshot.h>
#include <mods/init/init.h>
#include "compat-internal.h"
#include <libreborn/libreborn.h>
#include <SDL/SDL.h>
#ifndef MCPI_HEADLESS_MODE
#include <media-layer/core.h>
#include <mods/input/input.h>
#include <mods/sign/sign.h>
#include <mods/chat/chat.h>
#include <mods/home/home.h>
#endif
// Custom Title
HOOK(SDL_WM_SetCaption, void, (__attribute__((unused)) const char *title, const char *icon)) {
ensure_SDL_WM_SetCaption();
real_SDL_WM_SetCaption(MCPI_APP_TITLE, icon);
}
// Mouse Cursor Is Always Invisible In Vanilla MCPI
// Because In Vanilla MCPI, The GPU Overlay Covered The Normal Mouse Cursor
HOOK(SDL_ShowCursor, int, (int toggle)) {
ensure_SDL_ShowCursor();
return real_SDL_ShowCursor(toggle == SDL_QUERY ? SDL_QUERY : SDL_DISABLE);
}
// Intercept SDL Events
HOOK(SDL_PollEvent, int, (SDL_Event *event)) {
// In Server Mode, Exit Requests Are Handled In src/server/server.cpp
// Check If Exit Is Requested
#ifndef MCPI_SERVER_MODE
if (compat_check_exit_requested()) {
// Send SDL_QUIT
SDL_Event new_event;
new_event.type = SDL_QUIT;
SDL_PushEvent(&new_event);
}
#endif
// Poll Events
ensure_SDL_PollEvent();
int ret = real_SDL_PollEvent(event);
// Handle Events
if (ret == 1 && event != nullptr) {
int handled = 0;
#ifndef MCPI_HEADLESS_MODE
switch (event->type) {
case SDL_KEYDOWN: {
// Handle Key Presses
if (event->key.keysym.sym == SDLK_F11) {
media_toggle_fullscreen();
handled = 1;
} else if (event->key.keysym.sym == SDLK_F2) {
screenshot_take(home_get());
handled = 1;
} else if (event->key.keysym.sym == SDLK_ESCAPE) {
// Treat Escape As Back Button Press (This Fixes Issues With Signs)
handled = input_back();
} else if (event->key.keysym.sym == SDLK_q) {
// Drop Item
input_drop((event->key.keysym.mod & KMOD_CTRL) != 0);
handled = 1;
} else if (event->key.keysym.sym == SDLK_WORLD_0) {
// Crafting
input_open_crafting();
handled = 1;
}
break;
}
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP: {
// Track Right-Click State
if (event->button.button == SDL_BUTTON_RIGHT) {
input_set_is_right_click(event->button.state != SDL_RELEASED);
} else if (event->button.button == SDL_BUTTON_LEFT) {
input_set_is_left_click(event->button.state != SDL_RELEASED);
}
break;
}
case SDL_USEREVENT: {
// SDL_UserEvent Is Never Used In MCPI, So It Is Repurposed For Character Events
if (event->user.code == USER_EVENT_CHARACTER) {
sign_key_press((char) event->user.data1);
handled = 1;
}
break;
}
}
#endif
if (handled) {
// Event Was Handled
return SDL_PollEvent(event);
}
}
return ret;
}
// Exit Handler
static void exit_handler(__attribute__((unused)) int data) {
// Request Exit
compat_request_exit();
}
void init_compat() {
// Install Signal Handlers
signal(SIGINT, SIG_IGN);
struct sigaction act_sigterm = {};
act_sigterm.sa_flags = SA_RESTART;
act_sigterm.sa_handler = &exit_handler;
sigaction(SIGTERM, &act_sigterm, nullptr);
// Patches
_patch_egl_calls();
_patch_x11_calls();
_patch_bcm_host_calls();
}
// Store Exit Requests
static int exit_requested = 0;
int compat_check_exit_requested() {
if (exit_requested) {
exit_requested = 0;
return 1;
} else {
return 0;
}
}
void compat_request_exit() {
// Request
exit_requested = 1;
}