SDL: minor optimization (SDL_audiocvt.c)

From 2c6a9c5194d883a84c0f61fad1f4c4ada09e08b4 Mon Sep 17 00:00:00 2001
From: pionere <[EMAIL REDACTED]>
Date: Wed, 16 Mar 2022 09:36:43 +0100
Subject: [PATCH] minor optimization (SDL_audiocvt.c)

---
 src/audio/SDL_audiocvt.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/audio/SDL_audiocvt.c b/src/audio/SDL_audiocvt.c
index 9ed15b41306..bd49ab00828 100644
--- a/src/audio/SDL_audiocvt.c
+++ b/src/audio/SDL_audiocvt.c
@@ -1278,7 +1278,10 @@ SDL_BuildAudioCVT(SDL_AudioCVT * cvt,
         }
 
         /* just a byteswap needed? */
-        if ((src_fmt & ~SDL_AUDIO_MASK_ENDIAN) == (dst_fmt & ~SDL_AUDIO_MASK_ENDIAN) && SDL_AUDIO_BITSIZE(dst_fmt) > 8) {
+        if ((src_fmt & ~SDL_AUDIO_MASK_ENDIAN) == (dst_fmt & ~SDL_AUDIO_MASK_ENDIAN)) {
+            if (SDL_AUDIO_BITSIZE(dst_fmt) == 8) {
+                return 0;
+            }
             if (SDL_AddAudioCVTFilter(cvt, SDL_Convert_Byteswap) < 0) {
                 return -1;
             }