From 7f25433ccbdfb51e7e71722d4cc91ac0bef65871 Mon Sep 17 00:00:00 2001
From: Monroe Linden <monroe@lindenlab.com>
Date: Mon, 26 Oct 2009 17:13:38 -0700
Subject: Volume controls in the media HUD should now work -- this fixes
 DEV-41746, DEV-41748, and DEV-40782.

Added LLPluginClassMedia::getVolume().

Added setVolume/getVolumeupdateVolume methods to LLViewerMediaImpl.

LLViewerMedia::setVolume() now no longer overrides the volume settings on all media instances -- it now sets a "global volume" value which is multiplied by all instances' volumes to modulate them.

Cleaned up volume/mute handling in LLPanelMediaHUD (made it go through the LLViewerMediaImpl interface instead of directly through LLPluginClassMedia, and removed the mMediaVolume member variable, since the media impl now stores that state).
---
 indra/llplugin/llpluginclassmedia.cpp |  5 ++++
 indra/llplugin/llpluginclassmedia.h   |  1 +
 indra/newview/llviewermedia.cpp       | 43 +++++++++++++++++++++++++++++------
 indra/newview/llviewermedia.h         |  4 ++++
 4 files changed, 46 insertions(+), 7 deletions(-)

diff --git a/indra/llplugin/llpluginclassmedia.cpp b/indra/llplugin/llpluginclassmedia.cpp
index 6556aa33a4..26802bbd1c 100644
--- a/indra/llplugin/llpluginclassmedia.cpp
+++ b/indra/llplugin/llpluginclassmedia.cpp
@@ -1129,6 +1129,11 @@ void LLPluginClassMedia::setVolume(float volume)
 	}
 }
 
+float LLPluginClassMedia::getVolume()
+{
+	return mRequestedVolume;
+}
+
 void LLPluginClassMedia::initializeUrlHistory(const LLSD& url_history)
 {
 	// Send URL history to plugin
diff --git a/indra/llplugin/llpluginclassmedia.h b/indra/llplugin/llpluginclassmedia.h
index 603817b7d0..4f9763474e 100644
--- a/indra/llplugin/llpluginclassmedia.h
+++ b/indra/llplugin/llpluginclassmedia.h
@@ -227,6 +227,7 @@ public:
 	void seek(float time);
 	void setLoop(bool loop);
 	void setVolume(float volume);
+	float getVolume();
 	
 	F64 getCurrentTime(void) const { return mCurrentTime; };
 	F64 getDuration(void) const { return mDuration; };
diff --git a/indra/newview/llviewermedia.cpp b/indra/newview/llviewermedia.cpp
index 464ba4a5b1..b0f22166a0 100644
--- a/indra/newview/llviewermedia.cpp
+++ b/indra/newview/llviewermedia.cpp
@@ -171,6 +171,7 @@ typedef std::vector<LLViewerMediaImpl*> impl_list;
 static impl_list sViewerMediaImplList;
 static LLTimer sMediaCreateTimer;
 static const F32 LLVIEWERMEDIA_CREATE_DELAY = 1.0f;
+static F32 sGlobalVolume = 1.0f;
 
 //////////////////////////////////////////////////////////////////////////////////////////
 static void add_media_impl(LLViewerMediaImpl* media)
@@ -388,16 +389,27 @@ bool LLViewerMedia::textureHasMedia(const LLUUID& texture_id)
 // static
 void LLViewerMedia::setVolume(F32 volume)
 {
-	impl_list::iterator iter = sViewerMediaImplList.begin();
-	impl_list::iterator end = sViewerMediaImplList.end();
-
-	for(; iter != end; iter++)
+	if(volume != sGlobalVolume)
 	{
-		LLViewerMediaImpl* pimpl = *iter;
-		pimpl->setVolume(volume);
+		sGlobalVolume = volume;
+		impl_list::iterator iter = sViewerMediaImplList.begin();
+		impl_list::iterator end = sViewerMediaImplList.end();
+
+		for(; iter != end; iter++)
+		{
+			LLViewerMediaImpl* pimpl = *iter;
+			pimpl->updateVolume();
+		}
 	}
 }
 
+//////////////////////////////////////////////////////////////////////////////////////////
+// static
+F32 LLViewerMedia::getVolume()
+{
+	return sGlobalVolume;
+}
+
 // This is the predicate function used to sort sViewerMediaImplList by priority.
 static inline bool compare_impl_interest(const LLViewerMediaImpl* i1, const LLViewerMediaImpl* i2)
 {
@@ -592,6 +604,7 @@ LLViewerMediaImpl::LLViewerMediaImpl(	  const LLUUID& texture_id,
 	mDoNavigateOnLoadRediscoverType(false),
 	mDoNavigateOnLoadServerRequest(false),
 	mMediaSourceFailedInit(false),
+	mRequestedVolume(1.0f),
 	mIsUpdated(false)
 { 
 	
@@ -796,6 +809,9 @@ bool LLViewerMediaImpl::initializePlugin(const std::string& media_type)
 		media_source->focus(mHasFocus);
 		
 		mMediaSource = media_source;
+
+		updateVolume();
+
 		return true;
 	}
 
@@ -885,13 +901,26 @@ void LLViewerMediaImpl::seek(F32 time)
 
 //////////////////////////////////////////////////////////////////////////////////////////
 void LLViewerMediaImpl::setVolume(F32 volume)
+{
+	mRequestedVolume = volume;
+	updateVolume();
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////
+void LLViewerMediaImpl::updateVolume()
 {
 	if(mMediaSource)
 	{
-		mMediaSource->setVolume(volume);
+		mMediaSource->setVolume(mRequestedVolume * LLViewerMedia::getVolume());
 	}
 }
 
+//////////////////////////////////////////////////////////////////////////////////////////
+F32 LLViewerMediaImpl::getVolume()
+{
+	return mRequestedVolume;
+}
+
 //////////////////////////////////////////////////////////////////////////////////////////
 void LLViewerMediaImpl::focus(bool focus)
 {
diff --git a/indra/newview/llviewermedia.h b/indra/newview/llviewermedia.h
index 01640de33a..79bf3199d4 100644
--- a/indra/newview/llviewermedia.h
+++ b/indra/newview/llviewermedia.h
@@ -95,6 +95,7 @@ class LLViewerMedia
 		static void toggleMusicPlay(void*);
 		static void toggleMediaPlay(void*);
 		static void mediaStop(void*);
+		static F32 getVolume();	
 };
 
 // Implementation functions not exported into header file
@@ -130,6 +131,8 @@ public:
 	void start();
 	void seek(F32 time);
 	void setVolume(F32 volume);
+	void updateVolume();
+	F32 getVolume();
 	void focus(bool focus);
 	// True if the impl has user focus.
 	bool hasFocus() const;
@@ -286,6 +289,7 @@ public:
 	bool mDoNavigateOnLoadRediscoverType;
 	bool mDoNavigateOnLoadServerRequest;
 	bool mMediaSourceFailedInit;
+	F32 mRequestedVolume;
 
 
 private:
-- 
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