static bool find_first_libretro(char *path, size_t size,
const char *dir, const char *rom_path)
{
bool ret = false;
const char *ext = path_get_extension(rom_path);
if (!ext || !*ext)
{
RARCH_ERR("Path has no extension. Cannot infer libretro implementation.\n");
return false;
}
RARCH_LOG("Searching for valid libretro implementation in: \"%s\".\n", dir);
struct string_list *list = dir_list_new(dir, DYNAMIC_EXT, false);
if (!list)
{
RARCH_ERR("Couldn't open directory: \"%s\".\n", dir);
return false;
}
for (size_t i = 0; i < list->size && !ret; i++)
{
RARCH_LOG("Checking library: \"%s\".\n", list->elems[i].data);
struct retro_system_info info = {0};
dylib_t lib = libretro_get_system_info_lib(list->elems[i].data, &info, NULL);
if (!lib)
continue;
if (!info.valid_extensions)
{
dylib_close(lib);
continue;
}
struct string_list *supported_ext = string_split(info.valid_extensions, "|");
if (string_list_find_elem(supported_ext, ext))
{
strlcpy(path, list->elems[i].data, size);
ret = true;
}
string_list_free(supported_ext);
dylib_close(lib);
}
dir_list_free(list);
return ret;
}
bool libretro_get_system_info(const char *path, struct retro_system_info *info,
bool *load_no_rom)
{
struct retro_system_info dummy_info = {0};
dylib_t lib = libretro_get_system_info_lib(path, &dummy_info, load_no_rom);
if (!lib)
return false;
memcpy(info, &dummy_info, sizeof(*info));
info->library_name = strdup(dummy_info.library_name);
info->library_version = strdup(dummy_info.library_version);
if (dummy_info.valid_extensions)
info->valid_extensions = strdup(dummy_info.valid_extensions);
dylib_close(lib);
return true;
}
/**
* libretro_get_system_info:
* @path : Path to libretro library.
* @info : Pointer to system info information.
* @load_no_content : If true, core should be able to auto-start
* without any content loaded.
*
* Gets system info from an arbitrary lib.
* The struct returned must be freed as strings are allocated dynamically.
*
* Returns: true (1) if successful, otherwise false (0).
**/
bool libretro_get_system_info(const char *path,
struct retro_system_info *info, bool *load_no_content)
{
#ifdef HAVE_DYNAMIC
struct retro_system_info dummy_info = {0};
dylib_t lib = libretro_get_system_info_lib(path,
&dummy_info, load_no_content);
if (!lib)
return false;
memcpy(info, &dummy_info, sizeof(*info));
info->library_name = strdup(dummy_info.library_name);
info->library_version = strdup(dummy_info.library_version);
if (dummy_info.valid_extensions)
info->valid_extensions = strdup(dummy_info.valid_extensions);
dylib_close(lib);
#else
if (!libretro_get_system_info_static(info, load_no_content))
return false;
#endif
return true;
}
