From 7c024e9101a63be34a2c97ef0dc18deaa1afb175 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Tue, 9 Nov 2010 13:28:23 +0000
Subject: prevent error message spam if the audio subsystem can not initialize
 itself

---
 src/audio/audio.cc   | 42 +++++++++++++++++++++++++++++++-----------
 src/audio/audio.h    |  3 +++
 src/audio/buffers.cc |  9 ++++++++-
 3 files changed, 42 insertions(+), 12 deletions(-)

(limited to 'src/audio')

diff --git a/src/audio/audio.cc b/src/audio/audio.cc
index 46d3a67..d7f85d9 100644
--- a/src/audio/audio.cc
+++ b/src/audio/audio.cc
@@ -15,11 +15,19 @@ namespace audio
 
 ALCdevice 			*audio_device = 0;
 ALCcontext			*audio_context = 0;
+bool				audio_initialized = false;
+
+bool initialized()
+{
+	return audio_initialized;
+}
 
 void init()
 {
 	con_print << "^BInitializing audio..." << std::endl;
 
+	audio_initialized = false;
+	
 	// open the default audio device
 	audio_device = alcOpenDevice(0);
 
@@ -54,19 +62,28 @@ void init()
 
 	// console sound
 	load("ui/console");
+	
+	audio_initialized = true;
 }
 
 void reset()
 {
-	con_print << "^BInitializing audio..." << std::endl;
-
-	Sources::shutdown();
-	Buffers::shutdown();
-	Buffers::init();
-	Sources::init();
+	if (audio_initialized) {
+		con_print << "^BResetting audio..." << std::endl;
 
-	load("ui/nosnd");
-	load("ui/console");
+		Sources::shutdown();
+		Buffers::shutdown();
+	}
+	
+	if (!audio_initialized) {
+		init();
+	} else {
+		Buffers::init();
+		Sources::init();
+
+		load("ui/nosnd");
+		load("ui/console");
+	}
 }
 
 void load(const char *name)
@@ -78,9 +95,10 @@ void shutdown()
 {
 	con_print << "^BShutting down audio..." << std::endl;
 
-	Sources::shutdown();
-
-	Buffers::shutdown();
+	if (audio_initialized) {
+		Sources::shutdown();
+		Buffers::shutdown();
+	}
 
 	if (audio_context) {
 		alcMakeContextCurrent(0);
@@ -92,6 +110,8 @@ void shutdown()
 		alcCloseDevice(audio_device);
 		audio_device = 0;
 	}
+	
+	audio_initialized = false;
 }
 
 size_t play(const char *name)
diff --git a/src/audio/audio.h b/src/audio/audio.h
index ad9a024..073fb67 100644
--- a/src/audio/audio.h
+++ b/src/audio/audio.h
@@ -62,6 +62,9 @@ void update_listener(math::Vector3f const &location, math::Axis const &axis, mat
 /// return true is a source is playing
 bool is_playing(const size_t source_index);
 
+/// return true if audio is initialized
+bool initialized();
+
 }
 
 #endif // __INCLUDED_AUDIO_AUDIO_H__
diff --git a/src/audio/buffers.cc b/src/audio/buffers.cc
index 7bf7eb1..4349e8f 100644
--- a/src/audio/buffers.cc
+++ b/src/audio/buffers.cc
@@ -1,11 +1,12 @@
 /*
-   audio/buffers.h
+   audio/buffers.cc
    This file is part of the Osirion project and is distributed under
    the terms of the GNU General Public License version 2
 */
 
 #include <string.h>
 
+#include "audio/audio.h"
 #include "audio/buffers.h"
 #include "audio/pcm.h"
 #include "audio/wav.h"
@@ -59,6 +60,12 @@ size_t Buffers::load(std::string name)
 	if (it != registry.end())
 		return (*it).second;
 
+	// check if the audio subsystem has been initialized
+	if (!initialized()) {
+		registry[name] = 0;
+		return 0;
+	}
+	
 	// load wav file
 	PCM *pcm = Wav::load(name);
 	if (!pcm) {
-- 
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