From e9ba002aa837f16e44b03e4a332df32d51ceafb1 Mon Sep 17 00:00:00 2001
From: Csaba Hruska <csaba.hruska@gmail.com>
Date: Sun, 14 Sep 2008 11:51:54 +0000
Subject: [PATCH] bugfix: portaudio backend now handles blocked device
 correctly.

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1605 0778d3d1-df1d-0410-868b-ea421aaaa00d
---
 ChangeLog                          | 5 +++++
 src/core/audio/audio_portaudio.cpp | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 3a83248f9..958a7a334 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2008-09-14	Csaba Hruska <csaba.hruska/at/gmail.com>
+	
+	* src/core/audio/audio_portaudio.cpp:
+	Bugfix: Fixed segfault when other app uses and blocks the audio device
+
 2008-09-08	Paul Giblock <drfaygo/at/gmail/dot/com>
 	
 	* src/core/timeline.cpp:
diff --git a/src/core/audio/audio_portaudio.cpp b/src/core/audio/audio_portaudio.cpp
index a4b635227..37a167c9b 100644
--- a/src/core/audio/audio_portaudio.cpp
+++ b/src/core/audio/audio_portaudio.cpp
@@ -113,6 +113,11 @@ audioPortAudio::audioPortAudio( bool & _success_ful, mixer * _mixer ) :
 		outDevIdx = Pa_GetDefaultOutputDevice();
 	}
 
+	if( inDevIdx < 0 || outDevIdx < 0)
+	{
+		return;
+	}
+	
 	double inLatency = (double)getMixer()->framesPerPeriod() / (double)sampleRate();
 	double outLatency = (double)getMixer()->framesPerPeriod() / (double)sampleRate();