static bool netplay_init_buffers(netplay_t *netplay, unsigned frames)
{
if (!netplay)
return false;
/* * 2 + 1 because:
* Self sits in the middle,
* Other is allowed to drift as much as 'frames' frames behind
* Read is allowed to drift as much as 'frames' frames ahead */
netplay->buffer_size = frames * 2 + 1;
netplay->buffer = (struct delta_frame*)calloc(netplay->buffer_size,
sizeof(*netplay->buffer));
if (!netplay->buffer)
return false;
if (!(netplay->quirks & NETPLAY_QUIRK_INITIALIZATION))
netplay_init_serialization(netplay);
return true;
}
bool netplay_try_init_serialization(netplay_t *netplay)
{
retro_ctx_serialize_info_t serial_info;
if (netplay->state_size)
return true;
if (!netplay_init_serialization(netplay))
return false;
/* Check if we can actually save */
serial_info.data_const = NULL;
serial_info.data = netplay->buffer[netplay->self_ptr].state;
serial_info.size = netplay->state_size;
if (!core_serialize(&serial_info))
return false;
/* Once initialized, we no longer exhibit this quirk */
netplay->quirks &= ~((uint64_t) NETPLAY_QUIRK_INITIALIZATION);
return true;
}
static bool netplay_init_buffers(netplay_t *netplay)
{
if (!netplay)
return false;
/* Enough to get ahead or behind by MAX_STALL_FRAMES frames */
netplay->buffer_size = NETPLAY_MAX_STALL_FRAMES + 1;
/* If we're the server, we need enough to get ahead AND behind by
* MAX_STALL_FRAMES frame */
if (netplay->is_server)
netplay->buffer_size *= 2;
netplay->buffer = (struct delta_frame*)calloc(netplay->buffer_size,
sizeof(*netplay->buffer));
if (!netplay->buffer)
return false;
if (!(netplay->quirks & (NETPLAY_QUIRK_NO_SAVESTATES|NETPLAY_QUIRK_INITIALIZATION)))
netplay_init_serialization(netplay);
return netplay_init_socket_buffers(netplay);
}
