mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-05 15:08:27 +00:00
219 lines
5.1 KiB
C
219 lines
5.1 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
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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 "core_options.h"
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#include "general.h"
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#include "file.h"
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#include "compat/posix_string.h"
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struct core_option
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{
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char *desc;
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char *key;
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struct string_list *vals;
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size_t index;
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};
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struct core_option_manager
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{
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config_file_t *conf;
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char conf_path[PATH_MAX];
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struct core_option *opts;
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size_t size;
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bool updated;
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};
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void core_option_free(core_option_manager_t *opt)
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{
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if (!opt)
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return;
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for (size_t i = 0; i < opt->size; i++)
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{
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free(opt->opts[i].desc);
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free(opt->opts[i].key);
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string_list_free(opt->opts[i].vals);
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}
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if (opt->conf)
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config_file_free(opt->conf);
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free(opt->opts);
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free(opt);
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}
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void core_option_get(core_option_manager_t *opt, struct retro_variable *var)
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{
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opt->updated = false;
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for (size_t i = 0; i < opt->size; i++)
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{
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if (strcmp(opt->opts[i].key, var->key) == 0)
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{
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var->value = core_option_get_val(opt, i);
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return;
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}
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}
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var->value = NULL;
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}
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static bool parse_variable(core_option_manager_t *opt, size_t index, const struct retro_variable *var)
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{
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struct core_option *option = &opt->opts[index];
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option->key = strdup(var->key);
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char *value = strdup(var->value);
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char *desc_end = strstr(value, "; ");
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if (!desc_end)
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{
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free(value);
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return false;
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}
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*desc_end = '\0';
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option->desc = strdup(value);
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const char *val_start = desc_end + 2;
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option->vals = string_split(val_start, "|");
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if (!option->vals)
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{
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free(value);
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return false;
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}
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char *config_val = NULL;
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if (config_get_string(opt->conf, option->key, &config_val))
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{
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for (size_t i = 0; i < option->vals->size; i++)
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{
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if (strcmp(option->vals->elems[i].data, config_val) == 0)
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{
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option->index = i;
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break;
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}
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}
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free(config_val);
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}
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free(value);
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RARCH_LOG("Core option:\n");
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RARCH_LOG("\tDescription: %s\n", option->desc);
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RARCH_LOG("\tKey: %s\n", option->key);
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RARCH_LOG("\tCurrent value: %s\n", core_option_get_val(opt, index));
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RARCH_LOG("\tPossible values:\n");
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for (size_t i = 0; i < option->vals->size; i++)
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RARCH_LOG("\t\t%s\n", option->vals->elems[i].data);
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return true;
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}
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core_option_manager_t *core_option_new(const char *conf_path, const struct retro_variable *vars)
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{
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core_option_manager_t *opt = (core_option_manager_t*)calloc(1, sizeof(*opt));
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if (!opt)
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return NULL;
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size_t size = 0;
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if (*conf_path)
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opt->conf = config_file_new(conf_path);
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if (!opt->conf)
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opt->conf = config_file_new(NULL);
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strlcpy(opt->conf_path, conf_path, sizeof(opt->conf_path));
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if (!opt->conf)
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goto error;
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for (const struct retro_variable *var = vars; var->key && var->value; var++)
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size++;
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opt->opts = (struct core_option*)calloc(size, sizeof(*opt->opts));
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if (!opt->opts)
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goto error;
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opt->size = size;
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size = 0;
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for (const struct retro_variable *var = vars; var->key && var->value; size++, var++)
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{
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if (!parse_variable(opt, size, var))
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goto error;
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}
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return opt;
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error:
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core_option_free(opt);
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return NULL;
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}
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bool core_option_updated(core_option_manager_t *opt)
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{
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return opt->updated;
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}
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void core_option_flush(core_option_manager_t *opt)
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{
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for (size_t i = 0; i < opt->size; i++)
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{
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struct core_option *option = &opt->opts[i];
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config_set_string(opt->conf, option->key, core_option_get_val(opt, i));
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}
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config_file_write(opt->conf, opt->conf_path);
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}
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size_t core_option_size(core_option_manager_t *opt)
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{
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return opt->size;
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}
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const char *core_option_get_desc(core_option_manager_t *opt, size_t index)
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{
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return opt->opts[index].desc;
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}
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const char *core_option_get_val(core_option_manager_t *opt, size_t index)
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{
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struct core_option *option = &opt->opts[index];
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return option->vals->elems[option->index].data;
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}
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void core_option_next(core_option_manager_t *opt, size_t index)
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{
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struct core_option *option = &opt->opts[index];
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option->index = (option->index + 1) % option->vals->size;
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opt->updated = true;
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}
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void core_option_prev(core_option_manager_t *opt, size_t index)
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{
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struct core_option *option = &opt->opts[index];
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option->index = (option->index + option->vals->size - 1) % option->vals->size;
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opt->updated = true;
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}
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void core_option_set_default(core_option_manager_t *opt, size_t index)
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{
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opt->opts[index].index = 0;
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opt->updated = true;
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}
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