From 34b6160805c4995a8edf5f9b3328f5e492ae4c44 Mon Sep 17 00:00:00 2001
From: BearOso <bearoso@gmail.com>
Date: Mon, 20 Dec 2021 12:15:27 -0600
Subject: [PATCH] pulseaudio: Fix potential stall with Pipewire

Pipewire allows very small buffer sizes. It's possible that Snes9x
will accumulate enough samples in fast-forward to exceed this.
Instead of waiting forever for the buffer capacity to free up, just
write the number of samples for the free space after one small wait.
---
 gtk/src/gtk_sound_driver_pulse.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtk/src/gtk_sound_driver_pulse.cpp b/gtk/src/gtk_sound_driver_pulse.cpp
index e73b56ef..11c5599c 100644
--- a/gtk/src/gtk_sound_driver_pulse.cpp
+++ b/gtk/src/gtk_sound_driver_pulse.cpp
@@ -239,7 +239,7 @@ void S9xPulseSoundDriver::samples_available()
 
     if (Settings.SoundSync && !Settings.TurboMode && !Settings.Mute)
     {
-        while ((int)bytes < samples * 2)
+        if ((int)bytes < samples * 2)
         {
             int usec_to_sleep = ((samples >> 1) - (bytes >> 2)) * 10000 /
                                 (Settings.SoundPlaybackRate / 100);