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(netplay_frontend.c) Simplify code

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This commit is contained in:
twinaphex 2020-03-01 15:58:17 +01:00
parent 360fdfedbc
commit 69ffcf5648
1 changed files with 130 additions and 184 deletions
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314
network/netplay/netplay_frontend.c
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@ -42,7 +42,6 @@
#include "../../file_path_special.h"
#include "../../paths.h"
#include "../../command.h"
#include "../../dynamic.h"
#include "../../retroarch.h"
/* Only used before init_netplay */
@ -67,14 +66,6 @@ static void netplay_disconnect(netplay_t *netplay);
extern bool discord_is_inited;
#endif
/**
* netplay_is_alive:
* @netplay : pointer to netplay object
*
* Checks if input port/index is controlled by netplay or not.
*
* Returns: true (1) if alive, otherwise false (0).
**/
static bool netplay_is_alive(netplay_t *netplay)
{
if (!netplay)
@ -102,8 +93,8 @@ static bool netplay_should_skip(netplay_t *netplay)
* get_self_input_state:
* @netplay : pointer to netplay object
*
* Grab our own input state and send this frame's input state (self and remote)
* over the network
* Grab our own input state and send this frame's input state
* (self and remote) over the network
*
* Returns: true (1) if successful, otherwise false (0).
*/
@ -136,7 +127,8 @@ static bool netplay_get_self_input_state(netplay_t *netplay)
{
if (used_devices & (1<<local_device))
continue;
if ((netplay->config_devices[local_device]&RETRO_DEVICE_MASK) == dev_type)
if ((netplay->config_devices[local_device] & RETRO_DEVICE_MASK)
== dev_type)
break;
}
@ -145,8 +137,11 @@ static bool netplay_get_self_input_state(netplay_t *netplay)
used_devices |= (1<<local_device);
istate = netplay_input_state_for(&ptr->real_input[devi],
/* If we're a slave, we write our own input to MAX_CLIENTS to keep it separate */
(netplay->self_mode==NETPLAY_CONNECTION_SLAVE)?MAX_CLIENTS:netplay->self_client_num,
/* If we're a slave, we write our own input to
* MAX_CLIENTS to keep it separate */
(netplay->self_mode==NETPLAY_CONNECTION_SLAVE)
? MAX_CLIENTS
: netplay->self_client_num,
netplay_expected_input_size(netplay, 1 << devi),
true, false);
if (!istate)
@ -154,11 +149,13 @@ static bool netplay_get_self_input_state(netplay_t *netplay)
/* First frame we always give zero input since relying on
* input from first frame screws up when we use -F 0. */
if (!input_driver_is_libretro_input_blocked() && netplay->self_frame_count > 0)
if ( !input_driver_is_libretro_input_blocked()
&& netplay->self_frame_count > 0)
{
uint32_t *state = istate->data;
retro_input_state_t cb = netplay->cbs.state_cb;
unsigned dtype = netplay->config_devices[devi]&RETRO_DEVICE_MASK;
unsigned dtype = netplay->config_devices[devi] &
RETRO_DEVICE_MASK;
switch (dtype)
{
@ -207,7 +204,8 @@ static bool netplay_get_self_input_state(netplay_t *netplay)
for (key = 1; key < NETPLAY_KEY_LAST; key++)
{
state[word] |=
cb(local_device, RETRO_DEVICE_KEYBOARD, 0, netplay_key_ntoh(key)) ?
cb(local_device, RETRO_DEVICE_KEYBOARD,
0, netplay_key_ntoh(key)) ?
(1U << bit) : 0;
bit++;
if (bit >= 32)
@ -227,16 +225,19 @@ static bool netplay_get_self_input_state(netplay_t *netplay)
ptr->have_local = true;
if (netplay->self_mode == NETPLAY_CONNECTION_PLAYING)
{
ptr->have_real[netplay->self_client_num] = true;
netplay->read_ptr[netplay->self_client_num] = NEXT_PTR(netplay->self_ptr);
netplay->read_frame_count[netplay->self_client_num] = netplay->self_frame_count + 1;
ptr->have_real[netplay->self_client_num] = true;
netplay->read_ptr[netplay->self_client_num] =
NEXT_PTR(netplay->self_ptr);
netplay->read_frame_count[netplay->self_client_num] =
netplay->self_frame_count + 1;
}
/* And send this input to our peers */
for (i = 0; i < netplay->connections_size; i++)
{
struct netplay_connection *connection = &netplay->connections[i];
if (connection->active && connection->mode >= NETPLAY_CONNECTION_CONNECTED)
if ( connection->active &&
connection->mode >= NETPLAY_CONNECTION_CONNECTED)
netplay_send_cur_input(netplay, &netplay->connections[i]);
}
@ -251,8 +252,9 @@ bool init_netplay_deferred(const char* server, unsigned port)
{
if (!string_is_empty(server) && port != 0)
{
strlcpy(server_address_deferred, server, sizeof(server_address_deferred));
server_port_deferred = port;
strlcpy(server_address_deferred, server,
sizeof(server_address_deferred));
server_port_deferred = port;
netplay_client_deferred = true;
}
else
@ -260,17 +262,7 @@ bool init_netplay_deferred(const char* server, unsigned port)
return netplay_client_deferred;
}
/**
* netplay_poll:
* @netplay : pointer to netplay object
*
* Polls network to see if we have anything new. If our
* network buffer is full, we simply have to block
* for new input data.
*
* Returns: true (1) if successful, otherwise false (0).
**/
static bool netplay_poll(netplay_t *netplay)
static void netplay_poll(netplay_t *netplay)
{
size_t i;
uint32_t client;
@ -282,7 +274,7 @@ static bool netplay_poll(netplay_t *netplay)
/* If we're not connected, we're done */
if (netplay->self_mode == NETPLAY_CONNECTION_NONE)
return true;
return;
/* Read Netplay input, block if we're configured
* to stall for input every frame */
@ -403,8 +395,6 @@ static bool netplay_poll(netplay_t *netplay)
netplay->connections[0].stall_frame--;
break;
case NETPLAY_STALL_NO_CONNECTION:
/* We certainly haven't fixed this */
break;
default: /* not stalling */
break;
}
@ -417,7 +407,7 @@ static bool netplay_poll(netplay_t *netplay)
netplay->connected_players &&
netplay->run_frame_count + netplay->input_latency_frames > netplay->self_frame_count)
{
netplay->stall = NETPLAY_STALL_INPUT_LATENCY;
netplay->stall = NETPLAY_STALL_INPUT_LATENCY;
netplay->stall_time = 0;
}
@ -436,13 +426,14 @@ static bool netplay_poll(netplay_t *netplay)
struct netplay_connection *connection;
if (!(netplay->connected_players & (1<<client)))
continue;
if (netplay->read_frame_count[client] > netplay->unread_frame_count)
if ( netplay->read_frame_count[client] >
netplay->unread_frame_count)
continue;
connection = &netplay->connections[client-1];
if (connection->active &&
connection->mode == NETPLAY_CONNECTION_PLAYING)
{
connection->stall = NETPLAY_STALL_RUNNING_FAST;
connection->stall = NETPLAY_STALL_RUNNING_FAST;
connection->stall_time = netplay->stall_time;
}
}
@ -477,7 +468,9 @@ static bool netplay_poll(netplay_t *netplay)
)
{
/* Stalled out! */
if (netplay->is_server)
if (!netplay->is_server)
goto catastrophe;
{
bool fixed = false;
for (i = 0; i < netplay->connections_size; i++)
@ -494,23 +487,19 @@ static bool netplay_poll(netplay_t *netplay)
if (fixed)
{
/* Not stalled now :) */
/* Not stalled now */
netplay->stall = NETPLAY_STALL_NONE;
return true;
return;
}
}
else
goto catastrophe;
return false;
}
}
return true;
return;
catastrophe:
for (i = 0; i < netplay->connections_size; i++)
netplay_hangup(netplay, &netplay->connections[i]);
return false;
}
/**
@ -523,6 +512,11 @@ void input_poll_net(netplay_t *netplay)
if (!netplay_should_skip(netplay) && netplay->can_poll)
{
netplay->can_poll = false;
/* Polls network to see if we have anything new. If our
* network buffer is full, we simply have to block
* for new input data.
*/
netplay_poll(netplay);
}
}
@ -582,11 +576,9 @@ static int16_t netplay_input_state(netplay_t *netplay,
delta = &netplay->buffer[ptr];
istate = delta->resolved_input[port];
if (!istate || !istate->used)
if (!istate || !istate->used || istate->size == 0)
return 0;
if (istate->size == 0)
return 0;
curr_input_state = istate->data;
switch (device)
@ -692,13 +684,16 @@ static void netplay_announce_cb(retro_task_t *task,
if (string_is_equal(key, "id"))
sscanf(val, "%i", &host_room->id);
if (string_is_equal(key, "username"))
strlcpy(host_room->nickname, val, sizeof(host_room->nickname));
strlcpy(host_room->nickname, val,
sizeof(host_room->nickname));
if (string_is_equal(key, "ip"))
strlcpy(host_room->address, val, sizeof(host_room->address));
strlcpy(host_room->address, val,
sizeof(host_room->address));
if (string_is_equal(key, "mitm_ip"))
{
mitm_ip = strdup(val);
strlcpy(host_room->mitm_address, val, sizeof(host_room->mitm_address));
strlcpy(host_room->mitm_address, val,
sizeof(host_room->mitm_address));
}
if (string_is_equal(key, "port"))
sscanf(val, "%i", &host_room->port);
@ -708,42 +703,51 @@ static void netplay_announce_cb(retro_task_t *task,
sscanf(mitm_port, "%i", &host_room->mitm_port);
}
if (string_is_equal(key, "core_name"))
strlcpy(host_room->corename, val, sizeof(host_room->corename));
strlcpy(host_room->corename, val,
sizeof(host_room->corename));
if (string_is_equal(key, "frontend"))
strlcpy(host_room->frontend, val, sizeof(host_room->frontend));
strlcpy(host_room->frontend, val,
sizeof(host_room->frontend));
if (string_is_equal(key, "core_version"))
strlcpy(host_room->coreversion, val, sizeof(host_room->coreversion));
strlcpy(host_room->coreversion, val,
sizeof(host_room->coreversion));
if (string_is_equal(key, "game_name"))
strlcpy(host_room->gamename, val, sizeof(host_room->gamename));
strlcpy(host_room->gamename, val,
sizeof(host_room->gamename));
if (string_is_equal(key, "game_crc"))
sscanf(val, "%08d", &host_room->gamecrc);
if (string_is_equal(key, "host_method"))
sscanf(val, "%i", &host_room->host_method);
if (string_is_equal(key, "has_password"))
{
if (string_is_equal_noncase(val, "true") || string_is_equal(val, "1"))
if ( string_is_equal_noncase(val, "true")
|| string_is_equal(val, "1"))
host_room->has_password = true;
else
host_room->has_password = false;
}
if (string_is_equal(key, "has_spectate_password"))
{
if (string_is_equal_noncase(val, "true") || string_is_equal(val, "1"))
if ( string_is_equal_noncase(val, "true") ||
string_is_equal(val, "1"))
host_room->has_spectate_password = true;
else
host_room->has_spectate_password = false;
}
if (string_is_equal(key, "fixed"))
{
if (string_is_equal_noncase(val, "true") || string_is_equal(val, "1"))
if ( string_is_equal_noncase(val, "true")
|| string_is_equal(val, "1"))
host_room->fixed = true;
else
host_room->fixed = false;
}
if (string_is_equal(key, "retroarch_version"))
strlcpy(host_room->retroarch_version, val, sizeof(host_room->retroarch_version));
strlcpy(host_room->retroarch_version,
val, sizeof(host_room->retroarch_version));
if (string_is_equal(key, "country"))
strlcpy(host_room->country, val, sizeof(host_room->country));
strlcpy(host_room->country,
val, sizeof(host_room->country));
string_list_free(kv);
}
@ -758,7 +762,7 @@ static void netplay_announce_cb(retro_task_t *task,
if (netplay_driver_ctl(RARCH_NETPLAY_CTL_IS_DATA_INITED, NULL))
{
command_event(CMD_EVENT_NETPLAY_DEINIT, NULL);
is_mitm = true;
is_mitm = true;
host_room->host_method = NETPLAY_HOST_METHOD_MITM;
}
@ -771,7 +775,8 @@ static void netplay_announce_cb(retro_task_t *task,
memcpy(host_string + ip_len + 1, mitm_port, port_len);
/* Enable Netplay */
command_event(CMD_EVENT_NETPLAY_INIT_DIRECT_DEFERRED, (void*)host_string);
command_event(CMD_EVENT_NETPLAY_INIT_DIRECT_DEFERRED,
(void*)host_string);
command_event(CMD_EVENT_NETPLAY_INIT, (void*)host_string);
free(host_string);
@ -886,45 +891,13 @@ int16_t input_state_net(unsigned port, unsigned device,
unsigned idx, unsigned id)
{
netplay_t *netplay = netplay_data;
/* Check if input port/index is controlled by netplay or not. */
if (netplay_is_alive(netplay))
return netplay_input_state(netplay, port, device, idx, id);
return netplay->cbs.state_cb(port, device, idx, id);
}
/* ^^^ Netplay polling callbacks */
/**
* netplay_command:
* @netplay : pointer to netplay object
* @cmd : command to send
* @data : data to send as argument
* @sz : size of data
* @command_str : name of action
* @success_msg : message to display upon success
*
* Sends a single netplay command and waits for response. Only actually used
* for player flipping. FIXME: Should probably just be removed.
*/
bool netplay_command(netplay_t* netplay, struct netplay_connection *connection,
enum netplay_cmd cmd, void* data, size_t sz, const char* command_str,
const char* success_msg)
{
retro_assert(netplay);
if (!netplay_send_raw_cmd(netplay, connection, cmd, data, sz))
return false;
runloop_msg_queue_push(success_msg, 1, 180, false, NULL, MESSAGE_QUEUE_ICON_DEFAULT, MESSAGE_QUEUE_CATEGORY_INFO);
return true;
}
/**
* netplay_frontend_paused
* @netplay : pointer to netplay object
* @paused : true if frontend is paused
*
* Inform Netplay of the frontend's pause state (paused or otherwise)
*/
/* Inform Netplay of the frontend's pause state (paused or otherwise) */
static void netplay_frontend_paused(netplay_t *netplay, bool paused)
{
size_t i;
@ -949,12 +922,14 @@ static void netplay_frontend_paused(netplay_t *netplay, bool paused)
if (paused_ct > 1)
return;
/* Send our unpaused status. Must send manually because we must immediately
* flush the buffer: If we're paused, we won't be polled. */
/* Send our unpaused status. Must send manually
* because we must immediately flush the buffer:
* If we're paused, we won't be polled. */
for (i = 0; i < netplay->connections_size; i++)
{
struct netplay_connection *connection = &netplay->connections[i];
if (connection->active && connection->mode >= NETPLAY_CONNECTION_CONNECTED)
if ( connection->active &&
connection->mode >= NETPLAY_CONNECTION_CONNECTED)
{
if (paused)
netplay_send_raw_cmd(netplay, connection, NETPLAY_CMD_PAUSE,
@ -963,22 +938,14 @@ static void netplay_frontend_paused(netplay_t *netplay, bool paused)
netplay_send_raw_cmd(netplay, connection, NETPLAY_CMD_RESUME,
NULL, 0);
/* We're not going to be polled, so we need to flush this command now */
netplay_send_flush(&connection->send_packet_buffer, connection->fd, true);
/* We're not going to be polled, so we need
* to flush this command now */
netplay_send_flush(&connection->send_packet_buffer,
connection->fd, true);
}
}
}
/**
* netplay_pre_frame:
* @netplay : pointer to netplay object
*
* Pre-frame for Netplay.
* Call this before running retro_run().
*
* Returns: true (1) if the frontend is cleared to emulate the frame, false (0)
* if we're stalled or paused
**/
static bool netplay_pre_frame(netplay_t *netplay)
{
static int reannounce = 0;
@ -1057,14 +1024,6 @@ static bool netplay_pre_frame(netplay_t *netplay)
return true;
}
/**
* netplay_post_frame:
* @netplay : pointer to netplay object
*
* Post-frame for Netplay.
* We check if we have new input and replay from recorded input.
* Call this after running retro_run().
**/
static void netplay_post_frame(netplay_t *netplay)
{
size_t i;
@ -1132,16 +1091,6 @@ static void netplay_force_future(netplay_t *netplay)
}
}
/**
* netplay_send_savestate
* @netplay : pointer to netplay object
* @serial_info : the savestate being loaded
* @cx : compression type
* @z : compression backend to use
*
* Send a loaded savestate to those connected peers using the
* given compression scheme.
*/
static void netplay_send_savestate(netplay_t *netplay,
retro_ctx_serialize_info_t *serial_info, uint32_t cx,
struct compression_transcoder *z)
@ -1238,7 +1187,11 @@ void netplay_load_savestate(netplay_t *netplay,
| NETPLAY_QUIRK_NO_TRANSMISSION))
return;
/* Send this to every peer */
/* Send this to every peer
*
* Send a loaded savestate to those connected peers using the
* given compression scheme.
*/
if (netplay->compress_nil.compression_backend)
netplay_send_savestate(netplay, serial_info, 0, &netplay->compress_nil);
if (netplay->compress_zlib.compression_backend)
@ -1246,12 +1199,6 @@ void netplay_load_savestate(netplay_t *netplay,
&netplay->compress_zlib);
}
/**
* netplay_core_reset
* @netplay : pointer to netplay object
*
* Indicate that the core has been reset to netplay peers
**/
static void netplay_core_reset(netplay_t *netplay)
{
uint32_t cmd[3];
@ -1346,12 +1293,6 @@ static void netplay_toggle_play_spectate(netplay_t *netplay)
}
}
/**
* netplay_disconnect
* @netplay : pointer to netplay object
*
* Disconnect netplay.
**/
static void netplay_disconnect(netplay_t *netplay)
{
size_t i;
@ -1491,11 +1432,10 @@ bool netplay_driver_ctl(enum rarch_netplay_ctl_state state, void *data)
/* Used to avoid recursive netplay calls */
static bool in_netplay = false;
netplay_t *netplay = netplay_data;
bool ret = true;
if (in_netplay)
return true;
in_netplay = true;
in_netplay = true;
if (!netplay)
{
@ -1504,13 +1444,12 @@ bool netplay_driver_ctl(enum rarch_netplay_ctl_state state, void *data)
case RARCH_NETPLAY_CTL_ENABLE_SERVER:
netplay_enabled = true;
netplay_is_client = false;
goto done;
in_netplay = false;
return true;
case RARCH_NETPLAY_CTL_ENABLE_CLIENT:
netplay_enabled = true;
netplay_is_client = true;
break;
case RARCH_NETPLAY_CTL_DISABLE:
netplay_enabled = false;
#ifdef HAVE_DISCORD
@ -1521,27 +1460,22 @@ bool netplay_driver_ctl(enum rarch_netplay_ctl_state state, void *data)
command_event(CMD_EVENT_DISCORD_UPDATE, &userdata);
}
#endif
goto done;
in_netplay = false;
return true;
case RARCH_NETPLAY_CTL_IS_ENABLED:
ret = netplay_enabled;
goto done;
in_netplay = false;
return netplay_enabled;
case RARCH_NETPLAY_CTL_IS_REPLAYING:
case RARCH_NETPLAY_CTL_IS_DATA_INITED:
ret = false;
goto done;
case RARCH_NETPLAY_CTL_IS_SERVER:
ret = netplay_enabled && !netplay_is_client;
goto done;
case RARCH_NETPLAY_CTL_IS_CONNECTED:
ret = false;
goto done;
in_netplay = false;
return false;
case RARCH_NETPLAY_CTL_IS_SERVER:
in_netplay = false;
return netplay_enabled && !netplay_is_client;
default:
goto done;
in_netplay = false;
return true;
}
}
@ -1550,27 +1484,36 @@ bool netplay_driver_ctl(enum rarch_netplay_ctl_state state, void *data)
case RARCH_NETPLAY_CTL_ENABLE_SERVER:
case RARCH_NETPLAY_CTL_ENABLE_CLIENT:
case RARCH_NETPLAY_CTL_IS_DATA_INITED:
goto done;
case RARCH_NETPLAY_CTL_DISABLE:
ret = false;
goto done;
case RARCH_NETPLAY_CTL_IS_ENABLED:
goto done;
in_netplay = false;
return true;
case RARCH_NETPLAY_CTL_DISABLE:
in_netplay = false;
return false;
case RARCH_NETPLAY_CTL_IS_REPLAYING:
ret = netplay->is_replay;
goto done;
in_netplay = false;
return netplay->is_replay;
case RARCH_NETPLAY_CTL_IS_SERVER:
ret = netplay_enabled && !netplay_is_client;
goto done;
in_netplay = false;
return netplay_enabled && !netplay_is_client;
case RARCH_NETPLAY_CTL_IS_CONNECTED:
ret = netplay->is_connected;
goto done;
in_netplay = false;
return netplay->is_connected;
case RARCH_NETPLAY_CTL_POST_FRAME:
/* We check if we have new input and replay from recorded input.
* Call this after running retro_run().
*/
netplay_post_frame(netplay);
break;
case RARCH_NETPLAY_CTL_PRE_FRAME:
ret = netplay_pre_frame(netplay);
goto done;
in_netplay = false;
/*
* Call netplay_pre_frame before running retro_run().
*
* Returns true if the frontend is cleared to
* render the frame, false if we're stalled or paused
*/
return netplay_pre_frame(netplay);
case RARCH_NETPLAY_CTL_GAME_WATCH:
netplay_toggle_play_spectate(netplay);
break;
@ -1585,18 +1528,21 @@ bool netplay_driver_ctl(enum rarch_netplay_ctl_state state, void *data)
(retro_ctx_serialize_info_t*)data, true);
break;
case RARCH_NETPLAY_CTL_RESET:
/* Indicate that the core has been reset to netplay peers */
netplay_core_reset(netplay);
break;
case RARCH_NETPLAY_CTL_DISCONNECT:
if (netplay)
netplay_disconnect(netplay);
goto done;
in_netplay = false;
return true;
case RARCH_NETPLAY_CTL_FINISHED_NAT_TRAVERSAL:
netplay->nat_traversal_task_oustanding = false;
#ifndef HAVE_SOCKET_LEGACY
netplay_announce_nat_traversal(netplay);
#endif
goto done;
in_netplay = false;
return true;
case RARCH_NETPLAY_CTL_DESYNC_PUSH:
netplay->desync++;
break;
@ -1610,10 +1556,10 @@ bool netplay_driver_ctl(enum rarch_netplay_ctl_state state, void *data)
break;
default:
case RARCH_NETPLAY_CTL_NONE:
ret = false;
in_netplay = false;
return false;
}
done:
in_netplay = false;
return ret;
return true;
}