RetroArch/frontend/frontend.c
2014-06-12 18:06:29 +02:00

387 lines
11 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 "../conf/config_file.h"
#include "../file.h"
#include "frontend_context.h"
#if defined(HAVE_MENU)
#include "menu/menu_input_line_cb.h"
#include "menu/menu_common.h"
#endif
#include "../file_ext.h"
#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 signature_expand() data
#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)
#define main_entry rarch_main
#elif defined(EMSCRIPTEN)
#define main_entry _fakemain
#else
#define main_entry main
#endif
#define returntype int
#define signature_expand() argc, argv
#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
static retro_keyboard_event_t key_event;
#ifdef HAVE_MENU
static int main_entry_iterate_clear_input(args_type() args)
{
(void)args;
rarch_input_poll();
if (!menu_input())
{
// Restore libretro keyboard callback.
g_extern.system.key_event = key_event;
g_extern.lifecycle_state &= ~(1ULL << MODE_CLEAR_INPUT);
}
return 0;
}
static int main_entry_iterate_shutdown(args_type() args)
{
(void)args;
#ifdef HAVE_MENU
// Load dummy core instead of exiting RetroArch completely.
if (g_settings.load_dummy_on_core_shutdown)
load_menu_game_prepare_dummy();
else
#endif
return 1;
return 0;
}
static int main_entry_iterate_content(args_type() args)
{
bool r;
if (g_extern.is_paused && !g_extern.is_oneshot)
r = rarch_main_idle_iterate();
else
r = rarch_main_iterate();
if (r)
{
if (driver.frontend_ctx && driver.frontend_ctx->process_events)
driver.frontend_ctx->process_events(args);
}
else
g_extern.lifecycle_state &= ~(1ULL << MODE_GAME);
return 0;
}
static int main_entry_iterate_load_content(args_type() args)
{
load_menu_game_prepare();
if (load_menu_game())
{
g_extern.lifecycle_state |= (1ULL << MODE_GAME);
if (driver.video_data && driver.video_poke && driver.video_poke->set_aspect_ratio)
driver.video_poke->set_aspect_ratio(driver.video_data, g_settings.video.aspect_ratio_idx);
}
else
{
#if defined(RARCH_CONSOLE) || defined(RARCH_MOBILE)
// If ROM load fails, we go back to menu.
g_extern.lifecycle_state = (1ULL << MODE_MENU_PREINIT);
#else
// If ROM load fails, we exit RetroArch.
g_extern.system.shutdown = true;
#endif
}
g_extern.lifecycle_state &= ~(1ULL << MODE_LOAD_GAME);
return 0;
}
static int main_entry_iterate_menu_preinit(args_type() args)
{
int i;
if (!driver.menu)
return 1;
// Menu should always run with vsync on.
video_set_nonblock_state_func(false);
// Stop all rumbling when 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);
}
// 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;
if (driver.audio_data)
audio_stop_func();
driver.menu->need_refresh = true;
driver.menu->old_input_state |= 1ULL << RARCH_MENU_TOGGLE;
g_extern.lifecycle_state &= ~(1ULL << MODE_MENU_PREINIT);
g_extern.lifecycle_state |= (1ULL << MODE_MENU);
return 0;
}
static int main_entry_iterate_menu(args_type() args)
{
if (menu_iterate())
{
if (driver.frontend_ctx && driver.frontend_ctx->process_events)
driver.frontend_ctx->process_events(args);
}
else
{
g_extern.lifecycle_state &= ~(1ULL << MODE_MENU);
driver_set_nonblock_state(driver.nonblock_state);
if (driver.audio_data && !g_extern.audio_data.mute && !audio_start_func())
{
RARCH_ERR("Failed to resume audio driver. Will continue without audio.\n");
g_extern.audio_active = false;
}
g_extern.lifecycle_state |= (1ULL << MODE_CLEAR_INPUT);
// If QUIT state came from command interface, we'll only see it once due to MODE_CLEAR_INPUT.
if (input_key_pressed_func(RARCH_QUIT_KEY) || !video_alive_func())
return 1;
}
return 0;
}
int main_entry_iterate(signature(), args_type() args)
{
if (g_extern.system.shutdown)
return main_entry_iterate_shutdown(args);
else if (g_extern.lifecycle_state & (1ULL << MODE_CLEAR_INPUT))
return main_entry_iterate_clear_input(args);
else if (g_extern.lifecycle_state & (1ULL << MODE_LOAD_GAME))
return main_entry_iterate_load_content(args);
else if (g_extern.lifecycle_state & (1ULL << MODE_GAME))
return main_entry_iterate_content(args);
#ifdef HAVE_MENU
else if (g_extern.lifecycle_state & (1ULL << MODE_MENU_PREINIT))
main_entry_iterate_menu_preinit(args);
else if (g_extern.lifecycle_state & (1ULL << MODE_MENU))
return main_entry_iterate_menu(args);
#endif
else
return 1;
return 0;
}
#endif
void main_exit(args_type() args)
{
g_extern.system.shutdown = false;
if (g_extern.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)
{
driver.menu_data_own = false; // Do not want menu context to live any more.
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 free_args(struct rarch_main_wrap *wrap_args, char **argv_copy, unsigned argv_size)
{
unsigned i;
if (!wrap_args->touched)
return;
for (i = 0; i < argv_size; i++)
free(argv_copy[i]);
}
returntype main_entry(signature())
{
int *rarch_argc_ptr;
char **rarch_argv_ptr;
struct rarch_main_wrap *wrap_args;
declare_argc();
declare_argv();
args_type() args = (args_type())args_initial_ptr();
int ret, rarch_argc = 0;
char *rarch_argv[MAX_ARGS] = {NULL};
char *argv_copy[MAX_ARGS] = {NULL};
wrap_args = (struct rarch_main_wrap*)calloc(1, sizeof(*wrap_args));
rarch_assert(wrap_args);
driver.frontend_ctx = (frontend_ctx_driver_t*)frontend_ctx_init_first();
rarch_argv_ptr = (char**)argv;
rarch_argc_ptr = (int*)&argc;
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();
rarch_init_msg_queue();
if (driver.frontend_ctx && driver.frontend_ctx->environment_get)
{
driver.frontend_ctx->environment_get(rarch_argc_ptr, rarch_argv_ptr, args, wrap_args);
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);
if (wrap_args->touched)
{
g_extern.verbose = true;
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 ((ret = rarch_main_init(*rarch_argc_ptr, rarch_argv_ptr)))
{
free_args(wrap_args, argv_copy, ARRAY_SIZE(argv_copy));
free(wrap_args);
return_var(ret);
}
#if defined(HAVE_MENU)
if (driver.frontend_ctx && driver.frontend_ctx->process_args)
driver.frontend_ctx->process_args(rarch_argc_ptr, rarch_argv_ptr, args);
g_extern.lifecycle_state |= (1ULL << MODE_GAME);
#if defined(RARCH_CONSOLE) || defined(RARCH_MOBILE)
if (!ret)
#endif
{
// If we started a ROM directly from command line,
// push it to ROM history.
if (!g_extern.libretro_dummy)
menu_rom_history_push_current();
}
#endif
if (wrap_args)
free_args(wrap_args, argv_copy, ARRAY_SIZE(argv_copy));
free(wrap_args);
#if defined(HAVE_MENU)
while (!main_entry_iterate(signature_expand(), args));
#else
while ((g_extern.is_paused && !g_extern.is_oneshot) ? rarch_main_idle_iterate() : rarch_main_iterate());
#endif
main_exit(args);
returnfunc();
}