mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-23 16:09:47 +00:00
247 lines
7.6 KiB
C
247 lines
7.6 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_info.h"
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#include "general.h"
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#include "file.h"
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#include "file_ext.h"
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#include "file_extract.h"
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#include "config.def.h"
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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core_info_list_t *core_info_list_new(const char *modules_path)
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{
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struct string_list *contents = dir_list_new(modules_path, EXT_EXECUTABLES, false);
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size_t all_ext_len;
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core_info_t *core_info = NULL;
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core_info_list_t *core_info_list = NULL;
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if (!contents)
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return NULL;
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core_info_list = (core_info_list_t*)calloc(1, sizeof(*core_info_list));
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if (!core_info_list)
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goto error;
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core_info = (core_info_t*)calloc(contents->size, sizeof(*core_info));
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if (!core_info)
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goto error;
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core_info_list->list = core_info;
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core_info_list->count = contents->size;
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for (size_t i = 0; i < contents->size; i++)
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{
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char info_path_base[PATH_MAX], info_path[PATH_MAX];
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core_info[i].path = strdup(contents->elems[i].data);
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if (!core_info[i].path)
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break;
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fill_pathname_base(info_path_base, contents->elems[i].data, sizeof(info_path_base));
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path_remove_extension(info_path_base);
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#if defined(RARCH_MOBILE) || defined(RARCH_CONSOLE)
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// Android libs are deployed with a prefix 'lib' (libretro_*.so, etc)
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// Non-Android Libs (mobile/console) are deployed with a system name suffix (*_ios.dylib, *_qnx.so, etc).
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#ifdef ANDROID
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size_t prefix_len = strlen("libretro_");
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char *substr = strstr(info_path_base, "libretro_");
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if (substr && substr == info_path_base)
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memmove(info_path_base, info_path_base + prefix_len, strlen(info_path_base) + 1 - prefix_len);
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#else
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char *substr = strrchr(info_path_base, '_');
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if (substr)
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*substr = '\0';
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#endif
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#endif
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#ifdef ANDROID
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strlcat(info_path_base, "_libretro", sizeof(info_path_base));
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#endif
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strlcat(info_path_base, ".info", sizeof(info_path_base));
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fill_pathname_join(info_path, (*g_settings.libretro_info_path) ? g_settings.libretro_info_path : modules_path,
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info_path_base, sizeof(info_path));
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core_info[i].data = config_file_new(info_path);
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if (core_info[i].data)
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{
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config_get_string(core_info[i].data, "display_name", &core_info[i].display_name);
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if (config_get_string(core_info[i].data, "supported_extensions", &core_info[i].supported_extensions) &&
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core_info[i].supported_extensions)
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core_info[i].supported_extensions_list = string_split(core_info[i].supported_extensions, "|");
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}
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if (!core_info[i].display_name)
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core_info[i].display_name = strdup(path_basename(core_info[i].path));
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}
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all_ext_len = 0;
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for (size_t i = 0; i < core_info_list->count; i++)
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{
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all_ext_len += core_info_list->list[i].supported_extensions ?
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(strlen(core_info_list->list[i].supported_extensions) + 2) : 0;
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}
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if (all_ext_len)
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{
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all_ext_len += strlen("|zip");
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core_info_list->all_ext = (char*)calloc(1, all_ext_len);
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}
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if (core_info_list->all_ext)
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{
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for (size_t i = 0; i < core_info_list->count; i++)
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{
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if (core_info_list->list[i].supported_extensions)
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{
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strlcat(core_info_list->all_ext, core_info_list->list[i].supported_extensions, all_ext_len);
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strlcat(core_info_list->all_ext, "|", all_ext_len);
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}
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}
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strlcat(core_info_list->all_ext, "|zip", all_ext_len);
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}
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dir_list_free(contents);
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return core_info_list;
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error:
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if (contents)
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dir_list_free(contents);
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core_info_list_free(core_info_list);
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return NULL;
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}
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void core_info_list_free(core_info_list_t *core_info_list)
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{
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if (!core_info_list)
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return;
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for (size_t i = 0; i < core_info_list->count; i++)
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{
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free(core_info_list->list[i].path);
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free(core_info_list->list[i].display_name);
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free(core_info_list->list[i].supported_extensions);
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string_list_free(core_info_list->list[i].supported_extensions_list);
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config_file_free(core_info_list->list[i].data);
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}
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free(core_info_list->all_ext);
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free(core_info_list->list);
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free(core_info_list);
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}
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bool core_info_list_get_display_name(core_info_list_t *core_info_list, const char *path, char *buf, size_t size)
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{
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for (size_t i = 0; i < core_info_list->count; i++)
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{
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const core_info_t *info = &core_info_list->list[i];
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if (!strcmp(info->path, path) && info->display_name)
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{
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strlcpy(buf, info->display_name, size);
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return true;
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}
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}
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return false;
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}
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bool core_info_does_support_any_file(const core_info_t *core, const struct string_list *list)
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{
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if (!list || !core || !core->supported_extensions_list)
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return false;
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for (size_t i = 0; i < list->size; i++)
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if (string_list_find_elem_prefix(core->supported_extensions_list, ".", path_get_extension(list->elems[i].data)))
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return true;
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return false;
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}
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bool core_info_does_support_file(const core_info_t *core, const char *path)
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{
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if (!path || !core || !core->supported_extensions_list)
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return false;
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return string_list_find_elem_prefix(core->supported_extensions_list, ".", path_get_extension(path));
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}
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const char *core_info_list_get_all_extensions(core_info_list_t *core_info_list)
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{
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return core_info_list->all_ext;
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}
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// qsort_r() is not in standard C, sadly.
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static const char *core_info_tmp_path;
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static const struct string_list *core_info_tmp_list;
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static int core_info_qsort_cmp(const void *a_, const void *b_)
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{
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const core_info_t *a = (const core_info_t*)a_;
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const core_info_t *b = (const core_info_t*)b_;
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int support_a = core_info_does_support_any_file(a, core_info_tmp_list) ||
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core_info_does_support_file(a, core_info_tmp_path);
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int support_b = core_info_does_support_any_file(b, core_info_tmp_list) ||
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core_info_does_support_file(b, core_info_tmp_path);
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if (support_a != support_b)
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return support_b - support_a;
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else
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return strcasecmp(a->display_name, b->display_name);
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}
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void core_info_list_get_supported_cores(core_info_list_t *core_info_list, const char *path,
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const core_info_t **infos, size_t *num_infos)
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{
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core_info_tmp_path = path;
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#ifdef HAVE_ZLIB
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struct string_list *list = NULL;
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if (!strcasecmp(path_get_extension(path), "zip"))
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list = zlib_get_file_list(path);
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core_info_tmp_list = list;
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#endif
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// Let supported core come first in list so we can return a pointer to them.
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qsort(core_info_list->list, core_info_list->count, sizeof(core_info_t), core_info_qsort_cmp);
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size_t supported = 0;
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for (size_t i = 0; i < core_info_list->count; i++, supported++)
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{
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const core_info_t *core = &core_info_list->list[i];
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if (!core_info_does_support_file(core, path)
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#ifdef HAVE_ZLIB
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&& !core_info_does_support_any_file(core, list)
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#endif
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)
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break;
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}
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#ifdef HAVE_ZLIB
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if (list)
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string_list_free(list);
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#endif
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*infos = core_info_list->list;
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*num_infos = supported;
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}
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