From 5ef5fc1f98c3bcd4c709e6d9df18277c5266adc9 Mon Sep 17 00:00:00 2001
From: SarahW <pcem@pcem-emulator.co.uk>
Date: Sun, 5 May 2019 17:08:17 +0100
Subject: [PATCH] Tweak Voodoo swap pending code. Fixes hang in Carmageddon
 3DFX version.

---
 src/vid_voodoo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vid_voodoo.c b/src/vid_voodoo.c
index 480374e..157d62c 100644
--- a/src/vid_voodoo.c
+++ b/src/vid_voodoo.c
@@ -4307,7 +4307,7 @@ static void wait_for_swap_complete(voodoo_t *voodoo)
         {
                 thread_wait_event(voodoo->wake_fifo_thread, -1);
                 thread_reset_event(voodoo->wake_fifo_thread);
-                if ((voodoo->swap_pending && voodoo->flush) || FIFO_ENTRIES >= 65536)
+                if ((voodoo->swap_pending && voodoo->flush) || FIFO_FULL)
                 {
                         /*Main thread is waiting for FIFO to empty, so skip vsync wait and just swap*/
                         memset(voodoo->dirty_line, 1, 1024);