RetroArch/frontend/frontend.c

390 lines
10 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2014 - Daniel De Matteis
* Copyright (C) 2012-2014 - Michael Lelli
*
* RetroArch 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 Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "frontend.h"
#include "../general.h"
#include "frontend_context.h"
#if defined(HAVE_MENU)
#include "menu/menu_input_line_cb.h"
#include "menu/menu_common.h"
#endif
#if defined(RARCH_CONSOLE) || defined(RARCH_MOBILE)
#include "../config.def.h"
#endif
#if defined(ANDROID)
#define main_entry android_app_entry
#define returntype void
#define returnfunc() exit(0)
#define return_negative() return
#define return_var(var) return
#define declare_argc() int argc = 0;
#define declare_argv() char *argv[1]
#define args_initial_ptr() data
#else
#if defined(__APPLE__) || defined(HAVE_BB10) || defined(EMSCRIPTEN)
#define main_entry rarch_main
#else
#define main_entry main
#endif
#define returntype int
#define returnfunc() return 0
#define return_negative() return 1
#define return_var(var) return var
#define declare_argc()
#define declare_argv()
#define args_initial_ptr() NULL
#endif
#if !defined(__APPLE__) && !defined(EMSCRIPTEN)
#define HAVE_MAIN_LOOP
#endif
#define MAX_ARGS 32
int (*frontend_loop)(signature(), args_type() args);
static retro_keyboard_event_t key_event;
static int main_entry_iterate_shutdown(signature(), args_type() args)
{
(void)args;
if (!g_settings.load_dummy_on_core_shutdown)
return 1;
/* Load dummy core instead of exiting RetroArch completely. */
rarch_main_command(RARCH_CMD_PREPARE_DUMMY);
return 0;
}
int main_entry_iterate_content(signature(), args_type() args)
{
if (g_extern.system.shutdown)
return main_entry_iterate_shutdown(signature_expand(), args);
if (!rarch_main_iterate())
{
rarch_main_set_state(RARCH_ACTION_STATE_RUNNING_FINISHED);
return 0;
}
if (driver.frontend_ctx && driver.frontend_ctx->process_events)
driver.frontend_ctx->process_events(args);
return 0;
}
#ifndef HAVE_MENU
static int main_entry_iterate_content_nomenu(signature(), args_type() args)
{
if (!rarch_main_iterate())
return 1;
return 0;
}
#endif
int main_entry_iterate_clear_input(signature(), args_type() args)
{
(void)args;
if (g_extern.system.shutdown)
return main_entry_iterate_shutdown(signature_expand(), args);
rarch_input_poll();
#ifdef HAVE_MENU
if (menu_input())
return 0;
#endif
/* Restore libretro keyboard callback. */
g_extern.system.key_event = key_event;
rarch_main_set_state(RARCH_ACTION_STATE_FLUSH_INPUT_FINISHED);
return 0;
}
int main_entry_iterate_load_content(signature(), args_type() args)
{
if (g_extern.system.shutdown)
return main_entry_iterate_shutdown(signature_expand(), args);
#ifdef HAVE_MENU
if (!load_menu_content())
{
/* If content loading fails, we go back to menu. */
rarch_main_set_state(RARCH_ACTION_STATE_RUNNING_FINISHED);
if (driver.menu)
rarch_main_set_state(RARCH_ACTION_STATE_MENU_PREINIT);
}
#endif
rarch_main_set_state(RARCH_ACTION_STATE_LOAD_CONTENT_FINISHED);
return 0;
}
#ifdef HAVE_MENU
int main_entry_iterate_menu_preinit(signature(), args_type() args)
{
int i;
if (g_extern.system.shutdown)
return main_entry_iterate_shutdown(signature_expand(), args);
/* Menu should always run with vsync on. */
rarch_main_command(RARCH_CMD_VIDEO_SET_BLOCKING_STATE);
/* Stop all rumbling before entering the menu. */
for (i = 0; i < MAX_PLAYERS; i++)
{
driver_set_rumble_state(i, RETRO_RUMBLE_STRONG, 0);
driver_set_rumble_state(i, RETRO_RUMBLE_WEAK, 0);
}
rarch_main_command(RARCH_CMD_AUDIO_STOP);
if (driver.menu)
{
/* Override keyboard callback to redirect to menu instead.
* We'll use this later for something ...
* FIXME: This should probably be moved to menu_common somehow. */
key_event = g_extern.system.key_event;
g_extern.system.key_event = menu_key_event;
driver.menu->need_refresh = true;
driver.menu->old_input_state |= 1ULL << RARCH_MENU_TOGGLE;
rarch_main_set_state(RARCH_ACTION_STATE_MENU_PREINIT_FINISHED);
rarch_main_set_state(RARCH_ACTION_STATE_MENU_RUNNING);
}
return 0;
}
int main_entry_iterate_menu(signature(), args_type() args)
{
if (g_extern.system.shutdown)
return main_entry_iterate_shutdown(signature_expand(), args);
if (menu_iterate())
{
if (driver.frontend_ctx && driver.frontend_ctx->process_events)
driver.frontend_ctx->process_events(args);
return 0;
}
rarch_main_set_state(RARCH_ACTION_STATE_MENU_RUNNING_FINISHED);
driver_set_nonblock_state(driver.nonblock_state);
rarch_main_command(RARCH_CMD_AUDIO_START);
rarch_main_set_state(RARCH_ACTION_STATE_FLUSH_INPUT);
if (input_key_pressed_func(RARCH_QUIT_KEY) ||
!driver.video->alive(driver.video_data))
return 1;
return 0;
}
#endif
void main_exit(args_type() args)
{
g_extern.system.shutdown = false;
if (g_settings.config_save_on_exit && *g_extern.config_path)
{
/* Save last core-specific config to the default config location,
* needed on consoles for core switching and reusing last good
* config for new cores.
*/
config_save_file(g_extern.config_path);
/* Flush out the core specific config. */
if (*g_extern.core_specific_config_path &&
g_settings.core_specific_config)
config_save_file(g_extern.core_specific_config_path);
}
if (g_extern.main_is_init)
{
#ifdef HAVE_MENU
/* Do not want menu context to live any more. */
driver.menu_data_own = false;
#endif
rarch_main_deinit();
}
rarch_deinit_msg_queue();
rarch_perf_log();
#if defined(HAVE_LOGGER) && !defined(ANDROID)
logger_shutdown();
#endif
if (driver.frontend_ctx && driver.frontend_ctx->deinit)
driver.frontend_ctx->deinit(args);
if (g_extern.lifecycle_state & (1ULL << MODE_EXITSPAWN)
&& driver.frontend_ctx
&& driver.frontend_ctx->exitspawn)
driver.frontend_ctx->exitspawn(g_settings.libretro,
sizeof(g_settings.libretro));
rarch_main_clear_state();
if (driver.frontend_ctx && driver.frontend_ctx->shutdown)
driver.frontend_ctx->shutdown(false);
}
static void check_defaults_dirs(void)
{
if (*g_defaults.autoconfig_dir)
path_mkdir(g_defaults.autoconfig_dir);
if (*g_defaults.audio_filter_dir)
path_mkdir(g_defaults.audio_filter_dir);
if (*g_defaults.assets_dir)
path_mkdir(g_defaults.assets_dir);
if (*g_defaults.core_dir)
path_mkdir(g_defaults.core_dir);
if (*g_defaults.core_info_dir)
path_mkdir(g_defaults.core_info_dir);
if (*g_defaults.overlay_dir)
path_mkdir(g_defaults.overlay_dir);
if (*g_defaults.port_dir)
path_mkdir(g_defaults.port_dir);
if (*g_defaults.shader_dir)
path_mkdir(g_defaults.shader_dir);
if (*g_defaults.savestate_dir)
path_mkdir(g_defaults.savestate_dir);
if (*g_defaults.sram_dir)
path_mkdir(g_defaults.sram_dir);
if (*g_defaults.system_dir)
path_mkdir(g_defaults.system_dir);
}
bool main_load_content(int argc, char **argv, args_type() args,
environment_get_t environ_get,
process_args_t process_args)
{
int *rarch_argc_ptr;
char **rarch_argv_ptr;
struct rarch_main_wrap *wrap_args;
bool retval = true;
int i, ret = 0, rarch_argc = 0;
char *rarch_argv[MAX_ARGS] = {NULL};
char *argv_copy [MAX_ARGS] = {NULL};
rarch_argv_ptr = (char**)argv;
rarch_argc_ptr = (int*)&argc;
(void)rarch_argc_ptr;
(void)rarch_argv_ptr;
(void)ret;
wrap_args = (struct rarch_main_wrap*)calloc(1, sizeof(*wrap_args));
rarch_assert(wrap_args);
if (environ_get)
environ_get(rarch_argc_ptr, rarch_argv_ptr, args, wrap_args);
check_defaults_dirs();
if (wrap_args->touched)
{
rarch_main_init_wrap(wrap_args, &rarch_argc, rarch_argv);
memcpy(argv_copy, rarch_argv, sizeof(rarch_argv));
rarch_argv_ptr = (char**)rarch_argv;
rarch_argc_ptr = (int*)&rarch_argc;
}
if (g_extern.main_is_init)
rarch_main_deinit();
if ((ret = rarch_main_init(*rarch_argc_ptr, rarch_argv_ptr)))
{
retval = false;
goto error;
}
rarch_main_command(RARCH_CMD_RESUME);
if (process_args)
process_args(rarch_argc_ptr, rarch_argv_ptr);
error:
for (i = 0; i < ARRAY_SIZE(argv_copy); i++)
free(argv_copy[i]);
free(wrap_args);
return retval;
}
returntype main_entry(signature())
{
declare_argc();
declare_argv();
args_type() args = (args_type())args_initial_ptr();
int ret = 0;
driver.frontend_ctx = (frontend_ctx_driver_t*)frontend_ctx_init_first();
if (!driver.frontend_ctx)
RARCH_WARN("Frontend context could not be initialized.\n");
if (driver.frontend_ctx && driver.frontend_ctx->init)
driver.frontend_ctx->init(args);
rarch_main_clear_state();
if (driver.frontend_ctx)
{
if (!(ret = (main_load_content(argc, argv, args,
driver.frontend_ctx->environment_get,
driver.frontend_ctx->process_args))))
{
return_var(ret);
}
}
#if defined(HAVE_MENU)
#if defined(RARCH_CONSOLE) || defined(RARCH_MOBILE)
if (ret)
#endif
rarch_playlist_push(g_extern.history, g_extern.fullpath);
#else
frontend_loop = main_entry_iterate_content_nomenu;
#endif
#if defined(HAVE_MAIN_LOOP)
while (frontend_loop && !frontend_loop(signature_expand(), args));
main_exit(args);
#endif
returnfunc();
}