From 73c29e7763488bbde04ea5fa3221ea66c25465bc Mon Sep 17 00:00:00 2001
From: sfence <sfence.software@gmail.com>
Date: Sun, 8 Sep 2024 13:53:43 +0200
Subject: [PATCH] macOS: make mute sound actually work (#15128)

---
 src/client/sound/sound_manager.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/client/sound/sound_manager.cpp b/src/client/sound/sound_manager.cpp
index 679d3a155..6aae5bb7f 100644
--- a/src/client/sound/sound_manager.cpp
+++ b/src/client/sound/sound_manager.cpp
@@ -29,6 +29,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "filesys.h"
 #include "porting.h"
 
+#include <limits>
+
 namespace sound {
 
 void OpenALSoundManager::stepStreams(f32 dtime)
@@ -347,6 +349,13 @@ void OpenALSoundManager::updateListener(const v3f &pos_, const v3f &vel_,
 
 void OpenALSoundManager::setListenerGain(f32 gain)
 {
+#if defined(__APPLE__)
+	/* macOS OpenAL implementation ignore setting AL_GAIN to zero
+	 * so we use smallest possible value
+	 */
+	if (gain == 0.0f)
+		gain = std::numeric_limits<f32>::min();
+#endif
 	alListenerf(AL_GAIN, gain);
 }