WiiUPluginSystem/wups_include/hooks.h

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/****************************************************************************
* Copyright (C) 2018 Maschell
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#ifndef WUPS_HOOKS_DEF_H_
#define WUPS_HOOKS_DEF_H_
#include <dynamic_libs/os_types.h>
#include "common.h"
#ifdef __cplusplus
extern "C" {
#endif
#define WUPS_HOOK_EX(type_def,original_func) \
extern const wups_loader_hook_t wups_hooks_ ## original_func WUPS_SECTION("hooks"); \
const wups_loader_hook_t wups_hooks_ ## original_func = { \
.type = type_def, \
.target = (const void*)&(original_func) \
}
typedef enum wups_loader_hook_type_t {
WUPS_LOADER_HOOK_INIT_FS, /* Only for internal usage */
WUPS_LOADER_HOOK_INIT_OVERLAY, /* Only for internal usage */
WUPS_LOADER_HOOK_INIT_PLUGIN, /* Called when exiting the plugin loader */
WUPS_LOADER_HOOK_DEINIT_PLUGIN, /* Called when re-entering the plugin loader */
WUPS_LOADER_HOOK_STARTING_APPLICATION, /* Called when an application gets started */
WUPS_LOADER_HOOK_ENDING_APPLICATION, /* Called when an application ends */
WUPS_LOADER_HOOK_VSYNC, /* Called when an application calls GX2WaitForVsync (most times each frame) */
WUPS_LOADER_HOOK_APP_STATUS_CHANGED, /* Called when the app status changes (foreground, background, closing) */
} wups_loader_hook_type_t;
typedef struct wups_loader_hook_t {
wups_loader_hook_type_t type; /* Defines the type of the hook */
const void *target; /* Address of our own, new function */
} wups_loader_hook_t;
typedef enum wups_loader_app_status_t {
WUPS_APP_STATUS_FOREGROUND, /* App is now running in foreground */
WUPS_APP_STATUS_BACKGROUND, /* App is now running in background */
WUPS_APP_STATUS_CLOSED, /* App is going to be closed */
WUPS_APP_STATUS_UNKNOWN, /* Unknown status _should_ never happen.*/
} wups_loader_app_status_t;
typedef struct wups_loader_init_overlay_args_t {
const void * overlayfunction_ptr;
} wups_loader_init_overlay_args_t;
typedef struct wups_loader_init_fs_args_t {
const void * open_repl;
const void * close_repl;
const void * write_repl;
const void * read_repl;
const void * lseek_repl;
const void * stat_repl;
const void * fstat_repl;
const void * opendir_repl;
const void * closedir_repl;
const void * readdir_repl;
} wups_loader_init_fs_args_t;
typedef struct wups_loader_app_started_args_t {
bool sd_mounted;
bool usb_mounted;
} wups_loader_app_started_args_t;
#define WUPS_FS_ACCESS() \
void init_fs(wups_loader_init_fs_args_t);\
WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_FS,init_fs); \
void init_fs(wups_loader_init_fs_args_t args){ \
WUPS_InitFS(args);\
}
#define WUPS_ALLOW_OVERLAY() \
void init_overlay(wups_loader_init_overlay_args_t);\
WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_OVERLAY,init_overlay); \
void init_overlay(wups_loader_init_overlay_args_t args){ \
WUPS_InitOverlay(args);\
}
#define INITIALIZE_PLUGIN() \
void init_plugin(void);\
WUPS_HOOK_EX(WUPS_LOADER_HOOK_INIT_PLUGIN,init_plugin); \
void init_plugin()
#define DEINITIALIZE_PLUGIN() \
void deinit_plugin(void);\
WUPS_HOOK_EX(WUPS_LOADER_HOOK_DEINIT_PLUGIN,deinit_plugin); \
void deinit_plugin()
#define ON_APPLICATION_START(myargs) \
void on_app_starting(wups_loader_app_started_args_t);\
WUPS_HOOK_EX(WUPS_LOADER_HOOK_STARTING_APPLICATION,on_app_starting); \
void on_app_starting(wups_loader_app_started_args_t myargs)
#define ON_APPLICATION_ENDING() \
void on_app_ending(void);\
WUPS_HOOK_EX(WUPS_LOADER_HOOK_ENDING_APPLICATION,on_app_ending); \
void on_app_ending(void)
#define ON_VYSNC() \
void on_vsync(void);\
WUPS_HOOK_EX(WUPS_LOADER_HOOK_VSYNC,on_vsync); \
void on_vsync(void)
#define ON_APP_STATUS_CHANGED(status) \
void on_app_status_changed(wups_loader_app_status_t);\
WUPS_HOOK_EX(WUPS_LOADER_HOOK_APP_STATUS_CHANGED,on_app_status_changed); \
void on_app_status_changed(wups_loader_app_status_t status)
#ifdef __cplusplus
}
#endif
#endif /* WUPS_WUPS_H_ */