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Transfer pad configuration over netplay.

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This commit is contained in:
Gregor Richards 2016-12-12 23:07:46 -05:00
parent 888e45c88b
commit 5a0328dc09
2 changed files with 35 additions and 4 deletions
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4
network/netplay/README
View File

@ -165,13 +165,15 @@ Payload:
frame number: uint32
connected players: uint32
flip frame: uint32
controller devices: uint32[16]
sram: variable
}
Description:
Initial state synchronization. Mandatory handshake command from server to
client only. Sent after receiving client's NICK. Connected players is a
bitmap with the lowest bit being player 0. Flip frame is 0 if players
aren't flipped.
aren't flipped. Controller devices are the devices plugged into each
controller port, and 16 is really MAX_USERS.
Command: SPECTATE
Payload: None

35
network/netplay/netplay_common.c
View File

@ -25,6 +25,7 @@
#include "../../movie.h"
#include "../../msg_hash.h"
#include "../../configuration.h"
#include "../../content.h"
#include "../../runloop.h"
#include "../../version.h"
@ -320,13 +321,17 @@ bool netplay_handshake_pre_nick(netplay_t *netplay, struct netplay_connection *c
/* If we're the server, now we send sync info */
uint32_t cmd[5];
uint32_t connected_players;
settings_t *settings = config_get_ptr();
size_t i;
uint32_t device;
retro_ctx_memory_info_t mem_info;
mem_info.id = RETRO_MEMORY_SAVE_RAM;
core_get_memory(&mem_info);
/* Send basic sync info */
cmd[0] = htonl(NETPLAY_CMD_SYNC);
cmd[1] = htonl(3*sizeof(uint32_t) + mem_info.size);
cmd[1] = htonl(3*sizeof(uint32_t) + MAX_USERS*sizeof(uint32_t) + mem_info.size);
cmd[2] = htonl(netplay->self_frame_count);
connected_players = netplay->connected_players;
if (netplay->self_mode == NETPLAY_CONNECTION_PLAYING)
@ -340,6 +345,17 @@ bool netplay_handshake_pre_nick(netplay_t *netplay, struct netplay_connection *c
if (!netplay_send(&connection->send_packet_buffer, connection->fd, cmd,
sizeof(cmd)))
return false;
/* Now send the device info */
for (i = 0; i < MAX_USERS; i++)
{
device = htonl(settings->input.libretro_device[i]);
if (!netplay_send(&connection->send_packet_buffer, connection->fd,
&device, sizeof(device)))
return false;
}
/* And finally, the SRAM */
if (!netplay_send(&connection->send_packet_buffer, connection->fd,
mem_info.data, mem_info.size) ||
!netplay_send_flush(&connection->send_packet_buffer, connection->fd,
@ -367,9 +383,12 @@ bool netplay_handshake_pre_sync(netplay_t *netplay, struct netplay_connection *c
{
uint32_t cmd[2];
uint32_t new_frame_count, connected_players, flip_frame;
uint32_t device;
uint32_t local_sram_size, remote_sram_size;
size_t i;
ssize_t recvd;
settings_t *settings = config_get_ptr();
retro_ctx_controller_info_t pad;
retro_ctx_memory_info_t mem_info;
RECV(cmd, sizeof(cmd))
@ -377,7 +396,7 @@ bool netplay_handshake_pre_sync(netplay_t *netplay, struct netplay_connection *c
/* Only expecting a sync command */
if (ntohl(cmd[0]) != NETPLAY_CMD_SYNC ||
ntohl(cmd[1]) < 3*sizeof(uint32_t))
ntohl(cmd[1]) < 3*sizeof(uint32_t) + MAX_USERS*sizeof(uint32_t))
{
RARCH_ERR("%s\n",
msg_hash_to_str(MSG_FAILED_TO_RECEIVE_SRAM_DATA_FROM_HOST));
@ -430,12 +449,22 @@ bool netplay_handshake_pre_sync(netplay_t *netplay, struct netplay_connection *c
}
}
/* Get and set each pad */
for (i = 0; i < MAX_USERS; i++)
{
RECV(&device, sizeof(device))
return false;
pad.port = i;
pad.device = ntohl(device);
core_set_controller_port_device(&pad);
}
/* Now check the SRAM */
mem_info.id = RETRO_MEMORY_SAVE_RAM;
core_get_memory(&mem_info);
local_sram_size = mem_info.size;
remote_sram_size = ntohl(cmd[1]) - 3*sizeof(uint32_t);
remote_sram_size = ntohl(cmd[1]) - 3*sizeof(uint32_t) - MAX_USERS*sizeof(uint32_t);
if (local_sram_size != 0 && local_sram_size == remote_sram_size)
{