From 8a193abef3d8c243ec0967d1a08686fb77e14391 Mon Sep 17 00:00:00 2001
From: kervala <devnull@localhost>
Date: Wed, 28 Jul 2010 20:28:16 +0200
Subject: [PATCH] Changed: #1031 Music is "stopped" when client is loading with
 OpenAL driver

---
 .../src/sound/driver/openal/listener_al.cpp   | 22 ++++++++++---------
 .../sound/driver/openal/sound_driver_al.cpp   | 16 +++++++++++++-
 .../src/sound/driver/openal/sound_driver_al.h | 14 ++++++++++++
 3 files changed, 41 insertions(+), 11 deletions(-)

diff --git a/code/nel/src/sound/driver/openal/listener_al.cpp b/code/nel/src/sound/driver/openal/listener_al.cpp
index da7e6bc31..67eaf2478 100644
--- a/code/nel/src/sound/driver/openal/listener_al.cpp
+++ b/code/nel/src/sound/driver/openal/listener_al.cpp
@@ -145,8 +145,9 @@ void					CListenerAL::getOrientation( NLMISC::CVector& front, NLMISC::CVector& u
  */
 void					CListenerAL::setGain( float gain )
 {
-	alListenerf( AL_GAIN, gain );
-	alTestError();
+	CSoundDriverAL::getInstance()->setGain(gain);
+//	alListenerf( AL_GAIN, gain );
+//	alTestError();
 }
 
 
@@ -155,14 +156,15 @@ void					CListenerAL::setGain( float gain )
  */
 float					CListenerAL::getGain() const
 {
-	ALfloat gain;
-#ifdef NL_OS_WINDOWS
-	alGetListenerf( AL_GAIN, &gain );
-#else
-	alGetListenerfv( AL_GAIN, &gain );
-#endif
-	alTestError();
-	return gain;
+    return CSoundDriverAL::getInstance()->getGain();
+//	ALfloat gain;
+//#ifdef NL_OS_WINDOWS
+//	alGetListenerf( AL_GAIN, &gain );
+//#else
+//	alGetListenerfv( AL_GAIN, &gain );
+//#endif
+//	alTestError();
+//	return gain;
 }
 
 
diff --git a/code/nel/src/sound/driver/openal/sound_driver_al.cpp b/code/nel/src/sound/driver/openal/sound_driver_al.cpp
index 25f8dfa7c..270117c4f 100644
--- a/code/nel/src/sound/driver/openal/sound_driver_al.cpp
+++ b/code/nel/src/sound/driver/openal/sound_driver_al.cpp
@@ -173,7 +173,7 @@ uint32 NLSOUND_interfaceVersion ()
  */
 CSoundDriverAL::CSoundDriverAL(ISoundDriver::IStringMapperProvider *stringMapper) 
 : _StringMapper(stringMapper), _AlDevice(NULL), _AlContext(NULL), 
-_NbExpBuffers(0), _NbExpSources(0), _RolloffFactor(1.f)
+_NbExpBuffers(0), _NbExpSources(0), _RolloffFactor(1.f), _MasterGain(1.f)
 {
 	alExtInit();
 }
@@ -698,6 +698,20 @@ void CSoundDriverAL::removeMusicChannel(CMusicChannelAL *musicChannel)
 	else nlwarning("AL: removeMusicChannel already called");
 }
 
+/// Set the gain
+void CSoundDriverAL::setGain( float gain )
+{
+	clamp(gain, 0.f, 1.f);
+	_MasterGain= gain;
+	// TODO: update all sources in not using manual rollof ?
+}
+
+/// Get the gain
+float CSoundDriverAL::getGain()
+{
+	return _MasterGain;
+}
+
 /// Delete a buffer or a source
 bool CSoundDriverAL::deleteItem( ALuint name, TDeleteFunctionAL aldeletefunc, vector<ALuint>& names )
 {
diff --git a/code/nel/src/sound/driver/openal/sound_driver_al.h b/code/nel/src/sound/driver/openal/sound_driver_al.h
index 7e0dbf1a8..848637f6c 100644
--- a/code/nel/src/sound/driver/openal/sound_driver_al.h
+++ b/code/nel/src/sound/driver/openal/sound_driver_al.h
@@ -164,6 +164,17 @@ public:
 	/// (Internal) Remove music channel (should be called by the destructor of the music channel class).
 	void removeMusicChannel(CMusicChannelAL *musicChannel);	
 
+	/** Set the gain (volume value inside [0 , 1]). (default: 1)
+	 * 0.0 -> silence
+	 * 0.5 -> -6dB
+	 * 1.0 -> no attenuation
+	 * values > 1 (amplification) not supported by most drivers
+	 */
+	void setGain( float gain );
+
+	/// Get the gain
+	float getGain();
+
 protected:
 
 	/// Allocate nb new buffers or sources
@@ -182,6 +193,9 @@ protected:
 
 	/// Delete a buffer or a source
 	bool					deleteItem( ALuint name, TDeleteFunctionAL aldeletefunc, std::vector<ALuint>& names );
+
+	/// Master Volume [0,1]
+	float _MasterGain;
 };