/*
* rarch_verify_api_version:
*
* Compare libretro core API version against API version
* used by RetroArch.
*
* TODO - when libretro v2 gets added, allow for switching
* between libretro version backend dynamically.
**/
void rarch_verify_api_version(void)
{
RARCH_LOG("Version of libretro API: %u\n", pretro_api_version());
RARCH_LOG("Compiled against API: %u\n", RETRO_API_VERSION);
if (pretro_api_version() != RETRO_API_VERSION)
RARCH_WARN(RETRO_LOG_LIBRETRO_ABI_BREAK);
}
// Not really a hash, but should be enough to differentiate implementations from each other.
// Subtle differences in the implementation will not be possible to spot.
// The alternative would have been checking serialization sizes, but it was troublesome for cross platform compat.
static uint32_t implementation_magic_value(void)
{
size_t i;
uint32_t res = 0;
unsigned api = pretro_api_version();
res |= api;
const char *lib = g_extern.system.info.library_name;
size_t len = strlen(lib);
for (i = 0; i < len; i++)
res ^= lib[i] << (i & 0xf);
lib = g_extern.system.info.library_version;
len = strlen(lib);
for (i = 0; i < len; i++)
res ^= lib[i] << (i & 0xf);
const char *ver = PACKAGE_VERSION;
len = strlen(ver);
for (i = 0; i < len; i++)
res ^= ver[i] << ((i & 0xf) + 16);
return res;
}
