From a8e14a6adb2e9ee29da163b1b85e9c8fcb9875ae Mon Sep 17 00:00:00 2001
From: GenericHeroGuy <genericheroguy@noreply.codeberg.org>
Date: Tue, 2 Dec 2025 23:41:54 +0100
Subject: [PATCH] Clamp floating-point sample data to +-1.0 for OpenAL

Fixes horrendously amplified horns being loud as fuck
(yes, Vorbis can encode samples louder than 0 dB!)
---
 src/sdl/al_sound.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/sdl/al_sound.c b/src/sdl/al_sound.c
index cdd0c46b3..e719bcdd4 100644
--- a/src/sdl/al_sound.c
+++ b/src/sdl/al_sound.c
@@ -790,6 +790,14 @@ static ALuint LoadDataIntoBuffer(void *input, size_t size)
 			size = pos;
 			samplerate = info.samplerate;
 			sf_close(snd);
+
+			// SFC_SET_NORM_FLOAT apparently doesn't work, so gotta do this ourselves
+			if (sample_format == Float)
+			{
+				float *norm = (float *)data;
+				for (pos = 0; pos < size / sizeof(float); pos++)
+					norm[pos] = CLAMP(norm[pos], -1.0f, 1.0f);
+			}
 		}
 	}