From db4c41186afcfba0533c9f02f420dd5d6f5fe96b Mon Sep 17 00:00:00 2001
From: Michael Pavone <pavone@retrodev.com>
Date: Wed, 20 Jun 2018 22:49:21 -0700
Subject: Limit underflow warning spam

---
 render_sdl.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'render_sdl.c')

diff --git a/render_sdl.c b/render_sdl.c
index 7e0e826..87b4971 100755
--- a/render_sdl.c
+++ b/render_sdl.c
@@ -190,6 +190,10 @@ static uint32_t min_remaining_buffer;
 static void audio_callback_drc(void *userData, uint8_t *byte_stream, int len)
 {
 	memset(byte_stream, 0, len);
+	if (cur_min_buffered < 0) {
+		//underflow last frame, but main thread hasn't gotten a chance to call SDL_PauseAudio yet
+		return;
+	}
 	cur_min_buffered = 0x7FFFFFFF;
 	min_remaining_buffer = 0xFFFFFFFF;
 	for (uint8_t i = 0; i < num_audio_sources; i++)
@@ -1436,6 +1440,7 @@ void render_framebuffer_updated(uint8_t which, int width)
 				adjust_ratio = max_adjust;
 				SDL_PauseAudio(1);
 				last_buffered = NO_LAST_BUFFERED;
+				cur_min_buffered = 0;
 			} else {
 				adjust_ratio = -1.0 * average_change / ((float)sample_rate / (float)source_hz);
 				adjust_ratio /= 2.5 * source_hz;
-- 
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