/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2015 - Daniel De Matteis
* Copyright (C) 2012-2015 - 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 "../driver.h"
#include "frontend.h"
#include "../general.h"
#include <file/file_path.h>
#if defined(RARCH_CONSOLE) || defined(RARCH_MOBILE)
#include "../config.def.h"
#endif
#if defined(ANDROID)
#define returnfunc() exit(0)
#define return_var(var) return
#define declare_argc() int argc = 0;
#define declare_argv() char *argv[1]
#define args_initial_ptr() data
#else
#define returnfunc() return 0
#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
/**
* main_entry_decide:
*
* Runs RetroArch for one frame.
*
* Returns: -1 upon exiting, 0 if we want to
* iterate to the next frame.
**/
int main_entry_decide(signature(), args_type() args)
{
int ret = rarch_main_iterate();
if (ret == -1)
{
if (g_extern.core_shutdown_initiated
&& g_settings.load_dummy_on_core_shutdown)
{
/* Load dummy core instead of exiting RetroArch completely. */
rarch_main_command(RARCH_CMD_PREPARE_DUMMY);
g_extern.core_shutdown_initiated = false;
return 0;
}
}
return ret;
}
/**
* main_exit_save_config:
*
* Saves configuration file to disk, and (optionally)
* autosave state.
**/
void main_exit_save_config(void)
{
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);
}
rarch_main_command(RARCH_CMD_AUTOSAVE_STATE);
}
/**
* main_exit:
*
* Cleanly exit RetroArch.
*
* Also saves configuration files to disk,
* and (optionally) autosave state.
**/
void main_exit(args_type() args)
{
g_extern.system.shutdown = false;
main_exit_save_config();
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_main_command(RARCH_CMD_PERFCNT_REPORT_FRONTEND_LOG);
#if defined(HAVE_LOGGER) && !defined(ANDROID)
logger_shutdown();
#endif
if (driver.frontend_ctx && driver.frontend_ctx->deinit)
driver.frontend_ctx->deinit(args);
if (driver.frontend_ctx && driver.frontend_ctx->exitspawn)
driver.frontend_ctx->exitspawn(g_settings.libretro,
sizeof(g_settings.libretro));
rarch_main_state_free();
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.video_filter_dir)
path_mkdir(g_defaults.video_filter_dir);
if (*g_defaults.assets_dir)
path_mkdir(g_defaults.assets_dir);
if (*g_defaults.playlist_dir)
path_mkdir(g_defaults.playlist_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 (*g_defaults.resampler_dir)
path_mkdir(g_defaults.resampler_dir);
if (*g_defaults.menu_config_dir)
path_mkdir(g_defaults.menu_config_dir);
if (*g_defaults.content_history_dir)
path_mkdir(g_defaults.content_history_dir);
}
static void history_playlist_push(content_playlist_t *playlist,
const char *path, const char *core_path,
struct retro_system_info *info)
{
char tmp[PATH_MAX];
if (!playlist || g_extern.libretro_dummy || !info)
return;
/* Path can be relative here.
* Ensure we're pushing absolute path. */
strlcpy(tmp, path, sizeof(tmp));
if (*tmp)
path_resolve_realpath(tmp, sizeof(tmp));
if (g_extern.system.no_content || *tmp)
content_playlist_push(playlist,
*tmp ? tmp : NULL,
core_path,
info->library_name);
}
/**
* main_load_content:
* @argc : Argument count.
* @argv : Argument variable list.
* @args : Arguments passed from callee.
* @environ_get : Function passed for environment_get function.
* @process_args : Function passed for process_args function.
*
* Loads content file and starts up RetroArch.
* If no content file can be loaded, will start up RetroArch
* as-is.
*
* Returns: false (0) if rarch_main_init failed, otherwise true (1).
**/
bool main_load_content(int argc, char **argv, args_type() args,
environment_get_t environ_get,
process_args_t process_args)
{
unsigned i;
bool retval = true;
int ret = 0, rarch_argc = 0;
char *rarch_argv[MAX_ARGS] = {NULL};
char *argv_copy [MAX_ARGS] = {NULL};
char **rarch_argv_ptr = (char**)argv;
int *rarch_argc_ptr = (int*)&argc;
struct rarch_main_wrap *wrap_args = (struct rarch_main_wrap*)
calloc(1, sizeof(*wrap_args));
(void)rarch_argc_ptr;
(void)rarch_argv_ptr;
(void)ret;
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;
}
/**
* main_entry:
*
* Main function of RetroArch.
*
* If HAVE_MAIN_LOOP is defined, will contain main loop and will not
* be exited from until we exit the program. Otherwise, will
* just do initialization.
*
* Returns: varies per platform.
**/
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_state_new();
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);
}
}
rarch_main_command(RARCH_CMD_HISTORY_INIT);
if (g_settings.history_list_enable)
{
if (g_extern.content_is_init || g_extern.system.no_content)
history_playlist_push(g_defaults.history,
g_extern.fullpath,
g_settings.libretro,
&g_extern.system.info);
}
#if defined(HAVE_MAIN_LOOP)
while (main_entry_decide(signature_expand(), args) != -1);
main_exit(args);
#endif
returnfunc();
}