mirror of
https://github.com/libretro/RetroArch.git
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332 lines
8.7 KiB
C
332 lines
8.7 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - Daniel De Matteis
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* Copyright (C) 2012-2015 - Michael Lelli
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "../driver.h"
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#include "frontend.h"
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#include "../general.h"
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#include "../settings.h"
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#include "../retroarch.h"
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#include "../runloop.h"
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#include <file/file_path.h>
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#if defined(RARCH_CONSOLE) || defined(RARCH_MOBILE)
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#include "../config.def.h"
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#endif
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#if defined(ANDROID)
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#define returnfunc() exit(0)
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#define return_var(var) return
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#define declare_argc() int argc = 0;
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#define declare_argv() char *argv[1]
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#define args_initial_ptr() data
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#else
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#define returnfunc() return 0
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#define return_var(var) return var
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#define declare_argc()
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#define declare_argv()
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#define args_initial_ptr() NULL
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#endif
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#if !defined(__APPLE__) && !defined(EMSCRIPTEN)
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#define HAVE_MAIN_LOOP
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#endif
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#define MAX_ARGS 32
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/**
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* main_entry_decide:
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*
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* Runs RetroArch for one frame.
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*
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* Returns: -1 upon exiting, 0 if we want to
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* iterate to the next frame.
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**/
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int main_entry_decide(signature(), args_type() args)
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{
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int ret = rarch_main_iterate();
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if (ret == -1)
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{
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if (g_extern.core_shutdown_initiated
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&& g_settings.load_dummy_on_core_shutdown)
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{
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/* Load dummy core instead of exiting RetroArch completely. */
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rarch_main_command(RARCH_CMD_PREPARE_DUMMY);
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g_extern.core_shutdown_initiated = false;
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return 0;
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}
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}
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return ret;
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}
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/**
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* main_exit_save_config:
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*
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* Saves configuration file to disk, and (optionally)
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* autosave state.
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**/
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void main_exit_save_config(void)
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{
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if (g_settings.config_save_on_exit && *g_extern.config_path)
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{
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/* Save last core-specific config to the default config location,
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* needed on consoles for core switching and reusing last good
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* config for new cores.
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*/
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config_save_file(g_extern.config_path);
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/* Flush out the core specific config. */
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if (*g_extern.core_specific_config_path &&
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g_settings.core_specific_config)
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config_save_file(g_extern.core_specific_config_path);
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}
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rarch_main_command(RARCH_CMD_AUTOSAVE_STATE);
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}
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/**
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* main_exit:
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*
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* Cleanly exit RetroArch.
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*
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* Also saves configuration files to disk,
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* and (optionally) autosave state.
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**/
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void main_exit(args_type() args)
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{
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g_extern.system.shutdown = false;
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main_exit_save_config();
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if (g_extern.main_is_init)
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{
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#ifdef HAVE_MENU
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/* Do not want menu context to live any more. */
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driver.menu_data_own = false;
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#endif
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rarch_main_deinit();
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}
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rarch_main_command(RARCH_CMD_PERFCNT_REPORT_FRONTEND_LOG);
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#if defined(HAVE_LOGGER) && !defined(ANDROID)
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logger_shutdown();
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#endif
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if (driver.frontend_ctx && driver.frontend_ctx->deinit)
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driver.frontend_ctx->deinit(args);
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if (driver.frontend_ctx && driver.frontend_ctx->exitspawn)
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driver.frontend_ctx->exitspawn(g_settings.libretro,
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sizeof(g_settings.libretro));
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rarch_main_state_free();
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if (driver.frontend_ctx && driver.frontend_ctx->shutdown)
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driver.frontend_ctx->shutdown(false);
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}
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static void check_defaults_dirs(void)
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{
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if (*g_defaults.autoconfig_dir)
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path_mkdir(g_defaults.autoconfig_dir);
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if (*g_defaults.audio_filter_dir)
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path_mkdir(g_defaults.audio_filter_dir);
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if (*g_defaults.video_filter_dir)
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path_mkdir(g_defaults.video_filter_dir);
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if (*g_defaults.assets_dir)
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path_mkdir(g_defaults.assets_dir);
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if (*g_defaults.playlist_dir)
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path_mkdir(g_defaults.playlist_dir);
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if (*g_defaults.core_dir)
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path_mkdir(g_defaults.core_dir);
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if (*g_defaults.core_info_dir)
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path_mkdir(g_defaults.core_info_dir);
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if (*g_defaults.overlay_dir)
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path_mkdir(g_defaults.overlay_dir);
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if (*g_defaults.port_dir)
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path_mkdir(g_defaults.port_dir);
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if (*g_defaults.shader_dir)
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path_mkdir(g_defaults.shader_dir);
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if (*g_defaults.savestate_dir)
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path_mkdir(g_defaults.savestate_dir);
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if (*g_defaults.sram_dir)
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path_mkdir(g_defaults.sram_dir);
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if (*g_defaults.system_dir)
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path_mkdir(g_defaults.system_dir);
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if (*g_defaults.resampler_dir)
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path_mkdir(g_defaults.resampler_dir);
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if (*g_defaults.menu_config_dir)
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path_mkdir(g_defaults.menu_config_dir);
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if (*g_defaults.content_history_dir)
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path_mkdir(g_defaults.content_history_dir);
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}
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static void history_playlist_push(content_playlist_t *playlist,
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const char *path, const char *core_path,
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struct retro_system_info *info)
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{
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char tmp[PATH_MAX_LENGTH];
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if (!playlist || g_extern.libretro_dummy || !info)
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return;
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/* Path can be relative here.
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* Ensure we're pushing absolute path. */
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strlcpy(tmp, path, sizeof(tmp));
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if (*tmp)
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path_resolve_realpath(tmp, sizeof(tmp));
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if (g_extern.system.no_content || *tmp)
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content_playlist_push(playlist,
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*tmp ? tmp : NULL,
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core_path,
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info->library_name);
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}
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/**
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* main_load_content:
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* @argc : Argument count.
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* @argv : Argument variable list.
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* @args : Arguments passed from callee.
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* @environ_get : Function passed for environment_get function.
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* @process_args : Function passed for process_args function.
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*
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* Loads content file and starts up RetroArch.
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* If no content file can be loaded, will start up RetroArch
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* as-is.
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*
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* Returns: false (0) if rarch_main_init failed, otherwise true (1).
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**/
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bool main_load_content(int argc, char **argv, args_type() args,
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environment_get_t environ_get,
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process_args_t process_args)
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{
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unsigned i;
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bool retval = true;
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int ret = 0, rarch_argc = 0;
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char *rarch_argv[MAX_ARGS] = {NULL};
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char *argv_copy [MAX_ARGS] = {NULL};
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char **rarch_argv_ptr = (char**)argv;
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int *rarch_argc_ptr = (int*)&argc;
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struct rarch_main_wrap *wrap_args = (struct rarch_main_wrap*)
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calloc(1, sizeof(*wrap_args));
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(void)rarch_argc_ptr;
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(void)rarch_argv_ptr;
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(void)ret;
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rarch_assert(wrap_args);
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if (environ_get)
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environ_get(rarch_argc_ptr, rarch_argv_ptr, args, wrap_args);
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check_defaults_dirs();
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if (wrap_args->touched)
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{
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rarch_main_init_wrap(wrap_args, &rarch_argc, rarch_argv);
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memcpy(argv_copy, rarch_argv, sizeof(rarch_argv));
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rarch_argv_ptr = (char**)rarch_argv;
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rarch_argc_ptr = (int*)&rarch_argc;
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}
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if (g_extern.main_is_init)
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rarch_main_deinit();
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if ((ret = rarch_main_init(*rarch_argc_ptr, rarch_argv_ptr)))
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{
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retval = false;
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goto error;
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}
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rarch_main_command(RARCH_CMD_RESUME);
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if (process_args)
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process_args(rarch_argc_ptr, rarch_argv_ptr);
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error:
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for (i = 0; i < ARRAY_SIZE(argv_copy); i++)
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free(argv_copy[i]);
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free(wrap_args);
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return retval;
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}
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/**
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* main_entry:
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*
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* Main function of RetroArch.
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*
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* If HAVE_MAIN_LOOP is defined, will contain main loop and will not
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* be exited from until we exit the program. Otherwise, will
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* just do initialization.
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*
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* Returns: varies per platform.
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**/
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returntype main_entry(signature())
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{
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declare_argc();
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declare_argv();
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args_type() args = (args_type())args_initial_ptr();
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int ret = 0;
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driver.frontend_ctx = (frontend_ctx_driver_t*)frontend_ctx_init_first();
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if (!driver.frontend_ctx)
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RARCH_WARN("Frontend context could not be initialized.\n");
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if (driver.frontend_ctx && driver.frontend_ctx->init)
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driver.frontend_ctx->init(args);
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rarch_main_state_new();
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if (driver.frontend_ctx)
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{
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if (!(ret = (main_load_content(argc, argv, args,
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driver.frontend_ctx->environment_get,
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driver.frontend_ctx->process_args))))
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{
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return_var(ret);
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}
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}
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rarch_main_command(RARCH_CMD_HISTORY_INIT);
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if (g_settings.history_list_enable)
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{
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if (g_extern.content_is_init || g_extern.system.no_content)
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history_playlist_push(g_defaults.history,
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g_extern.fullpath,
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g_settings.libretro,
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&g_extern.system.info);
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}
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#if defined(HAVE_MAIN_LOOP)
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while (main_entry_decide(signature_expand(), args) != -1);
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main_exit(args);
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#endif
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returnfunc();
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}
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