# HG changeset patch
# User Sam Lantinga <slouken@libsdl.org>
# Date 1361925112 28800
# Node ID e56ed2eb139e2348f45e8f52a5ba3c91b462ac09
# Parent  361bebe92c66f3fe7bf082d837d4f0e455b370f8
Check to make sure we can connect to PulseAudio before we use it.

diff -r 361bebe92c66 -r e56ed2eb139e src/audio/pulseaudio/SDL_pulseaudio.c
--- a/src/audio/pulseaudio/SDL_pulseaudio.c	Tue Feb 26 20:41:28 2013 -0800
+++ b/src/audio/pulseaudio/SDL_pulseaudio.c	Tue Feb 26 16:31:52 2013 -0800
@@ -205,6 +205,27 @@
 }
 
 
+/* Check to see if we can connect to PulseAudio */
+static SDL_bool
+CheckPulseAudioAvailable()
+{
+    pa_simple *s;
+    pa_sample_spec ss;
+
+    ss.format = PA_SAMPLE_S16NE;
+    ss.channels = 1;
+    ss.rate = 22050;
+
+    s = PULSEAUDIO_pa_simple_new(NULL, "SDL", PA_STREAM_PLAYBACK, NULL,
+                                 "Test", &ss, NULL, NULL, NULL);
+    if (s) {
+        PULSEAUDIO_pa_simple_free(s);
+        return SDL_TRUE;
+    } else {
+        return SDL_FALSE;
+    }
+}
+
 /* This function waits until it is possible to write a full sound buffer */
 static void
 PULSEAUDIO_WaitDevice(_THIS)
@@ -476,7 +497,6 @@
     UnloadPulseAudioLibrary();
 }
 
-
 static int
 PULSEAUDIO_Init(SDL_AudioDriverImpl * impl)
 {
@@ -484,6 +504,10 @@
         return 0;
     }
 
+    if (!CheckPulseAudioAvailable()) {
+        return 0;
+    }
+
     /* Set the function pointers */
     impl->OpenDevice = PULSEAUDIO_OpenDevice;
     impl->PlayDevice = PULSEAUDIO_PlayDevice;