SDL: audio: Feed output devices immediately, instead of waiting upfront. (d6267)

SDL Commits
1 
From d6267afcb94b87021ae2c135de46fe06ad508c45 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Mon, 24 Mar 2025 19:32:52 -0400
Subject: [PATCH] audio: Feed output devices immediately, instead of waiting
 upfront.

This prevents the waste of an initial buffer of audio on many backends, and is
hopefully harmless on all of them.

Reference PR #12632.

(cherry picked from commit 41636959d2652068f2a676464b3cf3f47316a33d)
---
 src/audio/SDL_audio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/audio/SDL_audio.c b/src/audio/SDL_audio.c
index 583a159110977..cf817e4f19a12 100644
--- a/src/audio/SDL_audio.c
+++ b/src/audio/SDL_audio.c
@@ -1256,11 +1256,11 @@ static int SDLCALL PlaybackAudioThread(void *devicep)  // thread entry point
     SDL_assert(!device->recording);
     SDL_PlaybackAudioThreadSetup(device);
 
-    do {
+    while (SDL_PlaybackAudioThreadIterate(device)) {
         if (!device->WaitDevice(device)) {
             SDL_AudioDeviceDisconnected(device);  // doh. (but don't break out of the loop, just be a zombie for now!)
         }
-    } while (SDL_PlaybackAudioThreadIterate(device));
+    }
 
     SDL_PlaybackAudioThreadShutdown(device);
     return 0;