Fixed buffer underrun handling in MixSDL (bug #211)

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@919 8092fc87-c524-0410-9efc-e669fe64eaf9

sc2/ChangeLog

@@ -1,4 +1,5 @@
 Changes towards version 0.3:
+- Fixed MixSDL buffer underrun handling (bug #211) -Mika
 - Fix issue with caps lock and num lock preventing planet scan
   and lander message skipping (bug #299), from chmmravatar
 - Subtitles are now hidden after alien has finished talking (bug #312),

sc2/src/sc2code/libs/sound/mixsdl/mixer.c

@@ -672,7 +672,11 @@ mixSDL_SourcePlay (mixSDL_Object srcobj)
 	else /* should make the source active */
 	{
 		if (src->state < MIX_PLAYING)
+		{
+			if (src->firstqueued && !src->nextqueued)
+				mixSDL_SourceRewind_internal (src);
 			mixSDL_SourceActivate (src);
+		}
 		src->state = MIX_PLAYING;
 	}