From 8e435a66eb1b7413b774b3bdb066901cfc48b7a3 Mon Sep 17 00:00:00 2001
From: twinaphex <libretro@gmail.com>
Date: Sat, 30 Jan 2016 00:23:22 +0100
Subject: [PATCH] (Netplay) Backport - [PATCH] Should fix few issues with
 netplay. One perf fix and 3/4 player fix.

---
 netplay/netplay.c     | 7 +++++++
 netplay/netplay_net.c | 2 +-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/netplay/netplay.c b/netplay/netplay.c
index d3eaecfde6..6af88650c6 100644
--- a/netplay/netplay.c
+++ b/netplay/netplay.c
@@ -568,8 +568,15 @@ int16_t input_state_net(unsigned port, unsigned device,
       unsigned idx, unsigned id)
 {
    netplay_t *netplay = (netplay_t*)netplay_data;
+
    if (netplay_is_alive(netplay))
+   {
+      /* Only two players for now. */
+      if (port > 1)
+         return 0;
+
       return netplay_input_state(netplay, port, device, idx, id);
+   }
    return netplay->cbs.state_cb(port, device, idx, id);
 }
 
diff --git a/netplay/netplay_net.c b/netplay/netplay_net.c
index 198e64234d..9cd6f815d1 100644
--- a/netplay/netplay_net.c
+++ b/netplay/netplay_net.c
@@ -56,7 +56,7 @@ static void netplay_net_post_frame(netplay_t *netplay)
    {
       const struct delta_frame *ptr = &netplay->buffer[netplay->other_ptr];
 
-      if ((ptr->simulated_input_state != ptr->real_input_state)
+      if (memcmp(ptr->simulated_input_state, ptr->real_input_state, sizeof(ptr->real_input_state)) != 0
             && !ptr->used_real)
          break;
       netplay->other_ptr = NEXT_PTR(netplay->other_ptr);