libretro/RetroArch
1
0
Fork 0
mirror of https://github.com/libretro/RetroArch.git synced 2024-11-27 18:20:27 +00:00
Code Issues Actions 65 Packages Projects Releases Wiki Activity

Can query system_info for any lib.

Browse Source
This commit is contained in:
Themaister 2013-03-17 20:08:24 +01:00
parent 595e591607
commit c0cbe1aa43
2 changed files with 52 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
dynamic.c
View File

@ -100,6 +100,48 @@ static void set_environment_defaults(void);
#define DYNAMIC_EXT "so"
#endif
static dylib_t libretro_get_system_info_lib(const char *path, struct retro_system_info *info)
{
dylib_t lib = dylib_load(path);
if (!lib)
return NULL;
void (*proc)(struct retro_system_info*) =
(void (*)(struct retro_system_info*))dylib_proc(lib, "retro_get_system_info");
if (!proc)
{
dylib_close(lib);
return NULL;
}
proc(info);
return lib;
}
bool libretro_get_system_info(const char *path, struct retro_system_info *info)
{
struct retro_system_info dummy_info = {0};
dylib_t lib = libretro_get_system_info_lib(path, &dummy_info);
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);
info->valid_extensions = strdup(dummy_info.valid_extensions);
dylib_close(lib);
return true;
}
void libretro_free_system_info(struct retro_system_info *info)
{
free((void*)info->library_name);
free((void*)info->library_version);
free((void*)info->valid_extensions);
memset(info, 0, sizeof(*info));
}
static bool find_first_libretro(char *path, size_t size,
const char *dir, const char *rom_path)
{
@ -123,21 +165,11 @@ static bool find_first_libretro(char *path, size_t size,
for (size_t i = 0; i < list->size && !ret; i++)
{
RARCH_LOG("Checking library: \"%s\".\n", list->elems[i].data);
dylib_t lib = dylib_load(list->elems[i].data);
if (!lib)
continue;
void (*proc)(struct retro_system_info*) =
(void (*)(struct retro_system_info*))dylib_proc(lib, "retro_get_system_info");
if (!proc)
{
dylib_close(lib);
continue;
}
struct retro_system_info info = {0};
proc(&info);
dylib_t lib = libretro_get_system_info_lib(list->elems[i].data, &info);
if (!lib)
continue;
if (!info.valid_extensions)
{

7
dynamic.h
View File

@ -45,6 +45,13 @@ void dylib_close(dylib_t lib);
function_t dylib_proc(dylib_t lib, const char *proc);
#endif
#ifdef HAVE_DYNAMIC
// Gets system info from an arbitrary lib.
// The struct returned must be freed as strings are allocated dynamically.
bool libretro_get_system_info(const char *path, struct retro_system_info *info);
void libretro_free_system_info(struct retro_system_info *info);
#endif
extern void (*pretro_init)(void);
extern void (*pretro_deinit)(void);