Re-insert backed out SLE checkin so we can fix it

1 files changed, 346 insertions, 676 deletions

diff --git a/indra/newview/llvoiceclient.h b/indra/newview/llvoiceclient.h
index a29c386182..f1a7d3dbec 100644
--- a/indra/newview/llvoiceclient.h
+++ b/indra/newview/llvoiceclient.h
@@ -17,8 +17,7 @@
  * There are special exceptions to the terms and conditions of the GPL as
  * it is applied to this Source Code. View the full text of the exception
  * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
  * 
  * By copying, modifying or distributing this software, you acknowledge
  * that you have read and understood your obligations described above,
@@ -33,7 +32,6 @@
 #define LL_VOICE_CLIENT_H
 
 class LLVOAvatar;
-class LLVivoxProtocolParser;
 
 #include "lliopipe.h"
 #include "llpumpio.h"
@@ -42,9 +40,14 @@ class LLVivoxProtocolParser;
 #include "v3math.h"
 #include "llframetimer.h"
 #include "llviewerregion.h"
-#include "m3math.h"			// LLMatrix3
+#include "llcallingcard.h"   // for LLFriendObserver
+#include "llsecapi.h"
+
+// devices
+
+typedef std::vector<std::string> LLVoiceDeviceList;	
+
 
-class LLFriendObserver;
 class LLVoiceClientParticipantObserver
 {
 public:
@@ -52,6 +55,9 @@ public:
 	virtual void onChange() = 0;
 };
 
+
+///////////////////////////////////
+/// @class LLVoiceClientStatusObserver
 class LLVoiceClientStatusObserver
 {
 public:
@@ -65,11 +71,7 @@ public:
 		STATUS_JOINED,
 		STATUS_LEFT_CHANNEL,
 		STATUS_VOICE_DISABLED,
-
-		// Adding STATUS_VOICE_ENABLED as pair status for STATUS_VOICE_DISABLED
-		// See LLVoiceClient::setVoiceEnabled()
 		STATUS_VOICE_ENABLED,
-
 		BEGIN_ERROR_STATUS,
 		ERROR_CHANNEL_FULL,
 		ERROR_CHANNEL_LOCKED,
@@ -83,699 +85,367 @@ public:
 	static std::string status2string(EStatusType inStatus);
 };
 
-class LLVoiceClient: public LLSingleton<LLVoiceClient>
+struct LLVoiceVersionInfo
 {
-	LOG_CLASS(LLVoiceClient);
-	public:
-		LLVoiceClient();	
-		~LLVoiceClient();
-		
-	public:
-		static void init(LLPumpIO *pump);	// Call this once at application startup (creates connector)
-		static void terminate();	// Call this to clean up during shutdown
-						
-	protected:
-		bool writeString(const std::string &str);
-
-	public:
-		
-		static F32 OVERDRIVEN_POWER_LEVEL;
+	std::string serverType;
+	std::string serverVersion;
+};
 
-		static const F32 VOLUME_MIN;
-		static const F32 VOLUME_DEFAULT;
-		static const F32 VOLUME_MAX;
+//////////////////////////////////
+/// @class LLVoiceModuleInterface
+/// @brief Voice module interface
+///
+/// Voice modules should provide an implementation for this interface.
+/////////////////////////////////
 
-		void updateSettings(); // call after loading settings and whenever they change
+class LLVoiceModuleInterface
+{
+public:
+	LLVoiceModuleInterface() {}
+	virtual ~LLVoiceModuleInterface() {}
 	
-		void getCaptureDevicesSendMessage();
-		void getRenderDevicesSendMessage();
-		
-		void clearCaptureDevices();
-		void addCaptureDevice(const std::string& name);
-		void setCaptureDevice(const std::string& name);
-		
-		void clearRenderDevices();
-		void addRenderDevice(const std::string& name);
-		void setRenderDevice(const std::string& name);
-
-		void tuningStart();
-		void tuningStop();
-		bool inTuningMode();
-		bool inTuningStates();
-		
-		void tuningRenderStartSendMessage(const std::string& name, bool loop);
-		void tuningRenderStopSendMessage();
-
-		void tuningCaptureStartSendMessage(int duration);
-		void tuningCaptureStopSendMessage();
-		
-		void tuningSetMicVolume(float volume);
-		void tuningSetSpeakerVolume(float volume);
-		float tuningGetEnergy(void);
-				
-		// This returns true when it's safe to bring up the "device settings" dialog in the prefs.
-		// i.e. when the daemon is running and connected, and the device lists are populated.
-		bool deviceSettingsAvailable();
-		
-		// Requery the vivox daemon for the current list of input/output devices.
-		// If you pass true for clearCurrentList, deviceSettingsAvailable() will be false until the query has completed
-		// (use this if you want to know when it's done).
-		// If you pass false, you'll have no way to know when the query finishes, but the device lists will not appear empty in the interim.
-		void refreshDeviceLists(bool clearCurrentList = true);
-		
-		// Call this if the connection to the daemon terminates unexpectedly.  It will attempt to reset everything and relaunch.
-		void daemonDied();
-
-		// Call this if we're just giving up on voice (can't provision an account, etc.).  It will clean up and go away.
-		void giveUp();
-		
-		/////////////////////////////
-		// Response/Event handlers
-		void connectorCreateResponse(int statusCode, std::string &statusString, std::string &connectorHandle, std::string &versionID);
-		void loginResponse(int statusCode, std::string &statusString, std::string &accountHandle, int numberOfAliases);
-		void sessionCreateResponse(std::string &requestId, int statusCode, std::string &statusString, std::string &sessionHandle);
-		void sessionGroupAddSessionResponse(std::string &requestId, int statusCode, std::string &statusString, std::string &sessionHandle);
-		void sessionConnectResponse(std::string &requestId, int statusCode, std::string &statusString);
-		void logoutResponse(int statusCode, std::string &statusString);
-		void connectorShutdownResponse(int statusCode, std::string &statusString);
-
-		void accountLoginStateChangeEvent(std::string &accountHandle, int statusCode, std::string &statusString, int state);
-		void mediaStreamUpdatedEvent(std::string &sessionHandle, std::string &sessionGroupHandle, int statusCode, std::string &statusString, int state, bool incoming);
-		void textStreamUpdatedEvent(std::string &sessionHandle, std::string &sessionGroupHandle, bool enabled, int state, bool incoming);
-		void sessionAddedEvent(std::string &uriString, std::string &alias, std::string &sessionHandle, std::string &sessionGroupHandle, bool isChannel, bool incoming, std::string &nameString, std::string &applicationString);
-		void sessionGroupAddedEvent(std::string &sessionGroupHandle);
-		void sessionRemovedEvent(std::string &sessionHandle, std::string &sessionGroupHandle);
-		void participantAddedEvent(std::string &sessionHandle, std::string &sessionGroupHandle, std::string &uriString, std::string &alias, std::string &nameString, std::string &displayNameString, int participantType);
-		void participantRemovedEvent(std::string &sessionHandle, std::string &sessionGroupHandle, std::string &uriString, std::string &alias, std::string &nameString);
-		void participantUpdatedEvent(std::string &sessionHandle, std::string &sessionGroupHandle, std::string &uriString, std::string &alias, bool isModeratorMuted, bool isSpeaking, int volume, F32 energy);
-		void auxAudioPropertiesEvent(F32 energy);
-		void buddyPresenceEvent(std::string &uriString, std::string &alias, std::string &statusString, std::string &applicationString);
-		void messageEvent(std::string &sessionHandle, std::string &uriString, std::string &alias, std::string &messageHeader, std::string &messageBody, std::string &applicationString);
-		void sessionNotificationEvent(std::string &sessionHandle, std::string &uriString, std::string &notificationType);
-		void subscriptionEvent(std::string &buddyURI, std::string &subscriptionHandle, std::string &alias, std::string &displayName, std::string &applicationString, std::string &subscriptionType);
-		
-		void buddyListChanged();
-		void muteListChanged();
-		void updateFriends(U32 mask);
-		
-		/////////////////////////////
-		// Sending updates of current state
-static	void updatePosition(void);
-		void setCameraPosition(const LLVector3d &position, const LLVector3 &velocity, const LLMatrix3 &rot);
-		void setAvatarPosition(const LLVector3d &position, const LLVector3 &velocity, const LLMatrix3 &rot);
-		bool channelFromRegion(LLViewerRegion *region, std::string &name);
-		void leaveChannel(void);		// call this on logout or teleport begin
-
-		
-		void setMuteMic(bool muted);		// Use this to mute the local mic (for when the client is minimized, etc), ignoring user PTT state.
-		bool getMuteMic() const;
-		void setUserPTTState(bool ptt);
-		bool getUserPTTState();
-		void toggleUserPTTState(void);
-		void inputUserControlState(bool down); // interpret any sort of up-down mic-open control input according to ptt-toggle prefs
-		void setVoiceEnabled(bool enabled);
-		static bool voiceEnabled();
-		// Checks is voice working judging from mState
-		// Returns true if vivox has successfully logged in and is not in error state
-		bool voiceWorking();
-		void setUsePTT(bool usePTT);
-		void setPTTIsToggle(bool PTTIsToggle);
-		bool getPTTIsToggle();
-		void setPTTKey(std::string &key);
-		void setEarLocation(S32 loc);
-		void setVoiceVolume(F32 volume);
-		void setMicGain(F32 volume);
-		void setUserVolume(const LLUUID& id, F32 volume); // sets volume for specified agent, from 0-1 (where .5 is nominal)
-		void setLipSyncEnabled(BOOL enabled);
-		BOOL lipSyncEnabled();
-
-		// PTT key triggering
-		void keyDown(KEY key, MASK mask);
-		void keyUp(KEY key, MASK mask);
-		void middleMouseState(bool down);
-
-		// Return the version of the Vivox library
-		std::string getAPIVersion() const { return mAPIVersion; }
-		
-		/////////////////////////////
-		// Accessors for data related to nearby speakers
-		BOOL getVoiceEnabled(const LLUUID& id);		// true if we've received data for this avatar
-		BOOL getIsSpeaking(const LLUUID& id);
-		BOOL getIsModeratorMuted(const LLUUID& id);
-		F32 getCurrentPower(const LLUUID& id);		// "power" is related to "amplitude" in a defined way.  I'm just not sure what the formula is...
-		BOOL getOnMuteList(const LLUUID& id);
-		F32 getUserVolume(const LLUUID& id);
-		std::string getDisplayName(const LLUUID& id);
-		
-		// MBW -- XXX -- Not sure how to get this data out of the TVC
-		BOOL getUsingPTT(const LLUUID& id);
-		std::string getGroupID(const LLUUID& id);		// group ID if the user is in group chat (empty string if not applicable)
-
-		/////////////////////////////
-		BOOL getAreaVoiceDisabled();		// returns true if the area the avatar is in is speech-disabled.
-											// Use this to determine whether to show a "no speech" icon in the menu bar.
-		
-		/////////////////////////////
-		// Recording controls
-		void recordingLoopStart(int seconds = 3600, int deltaFramesPerControlFrame = 200);
-		void recordingLoopSave(const std::string& filename);
-		void recordingStop();
-		
-		// Playback controls
-		void filePlaybackStart(const std::string& filename);
-		void filePlaybackStop();
-		void filePlaybackSetPaused(bool paused);
-		void filePlaybackSetMode(bool vox = false, float speed = 1.0f);
-		
-		
-		// This is used by the string-keyed maps below, to avoid storing the string twice.
-		// The 'const std::string *' in the key points to a string actually stored in the object referenced by the map.
-		// The add and delete operations for each map allocate and delete in the right order to avoid dangling references.
-		// The default compare operation would just compare pointers, which is incorrect, so they must use this comparitor instead.
-		struct stringMapComparitor
-		{
-			bool operator()(const std::string* a, const std::string * b) const
-			{
-				return a->compare(*b) < 0;
-			}
-		};
-
-		struct uuidMapComparitor
-		{
-			bool operator()(const LLUUID* a, const LLUUID * b) const
-			{
-				return *a < *b;
-			}
-		};
-		
-		struct participantState
-		{
-		public:
-			participantState(const std::string &uri);
-
-			bool updateMuteState();	// true if mute state has changed
-			bool isAvatar();
-
-			std::string mURI;
-			LLUUID mAvatarID;
-			std::string mAccountName;
-			std::string mDisplayName;
-			LLFrameTimer mSpeakingTimeout;
-			F32	mLastSpokeTimestamp;
-			F32 mPower;
-			F32 mVolume;
-			std::string mGroupID;
-			bool mPTT;
-			bool mIsSpeaking;
-			bool mIsModeratorMuted;
-			bool mOnMuteList;		// true if this avatar is on the user's mute list (and should be muted)
-			bool mVolumeSet;		// true if incoming volume messages should not change the volume
-			bool mVolumeDirty;		// true if this participant needs a volume command sent (either mOnMuteList or mUserVolume has changed)
-			bool mAvatarIDValid;
-			bool mIsSelf;
-		};
-		typedef std::map<const std::string *, participantState*, stringMapComparitor> participantMap;
-
-		typedef std::map<const LLUUID *, participantState*, uuidMapComparitor> participantUUIDMap;
-	
-		enum streamState
-		{
-			streamStateUnknown = 0,
-			streamStateIdle = 1,
-			streamStateConnected = 2,
-			streamStateRinging = 3,
-		};
-		
-		struct sessionState
-		{
-		public:
-			sessionState();
-			~sessionState();
-
-			participantState *addParticipant(const std::string &uri);
-			// Note: after removeParticipant returns, the participant* that was passed to it will have been deleted.
-			// Take care not to use the pointer again after that.
-			void removeParticipant(participantState *participant);
-			void removeAllParticipants();
-
-			participantState *findParticipant(const std::string &uri);
-			participantState *findParticipantByID(const LLUUID& id);
-
-			bool isCallBackPossible();
-			bool isTextIMPossible();
-
-			std::string mHandle;
-			std::string mGroupHandle;
-			std::string mSIPURI;
-			std::string mAlias;
-			std::string mName;
-			std::string mAlternateSIPURI;
-			std::string mHash;			// Channel password
-			std::string mErrorStatusString;
-			std::queue<std::string> mTextMsgQueue;
-			
-			LLUUID		mIMSessionID;
-			LLUUID		mCallerID;
-			int			mErrorStatusCode;
-			int			mMediaStreamState;
-			int			mTextStreamState;
-			bool		mCreateInProgress;	// True if a Session.Create has been sent for this session and no response has been received yet.
-			bool		mMediaConnectInProgress;	// True if a Session.MediaConnect has been sent for this session and no response has been received yet.
-			bool		mVoiceInvitePending;	// True if a voice invite is pending for this session (usually waiting on a name lookup)
-			bool		mTextInvitePending;		// True if a text invite is pending for this session (usually waiting on a name lookup)
-			bool		mSynthesizedCallerID;	// True if the caller ID is a hash of the SIP URI -- this means we shouldn't do a name lookup.
-			bool		mIsChannel;	// True for both group and spatial channels (false for p2p, PSTN)
-			bool		mIsSpatial;	// True for spatial channels
-			bool		mIsP2P;
-			bool		mIncoming;
-			bool		mVoiceEnabled;
-			bool		mReconnect;	// Whether we should try to reconnect to this session if it's dropped
-			// Set to true when the mute state of someone in the participant list changes.
-			// The code will have to walk the list to find the changed participant(s).
-			bool		mVolumeDirty;
-			bool		mMuteDirty;
-
-			bool		mParticipantsChanged;
-			participantMap mParticipantsByURI;
-			participantUUIDMap mParticipantsByUUID;
-		};
-
-		participantState *findParticipantByID(const LLUUID& id);
-		participantMap *getParticipantList(void);
-		void getParticipantsUUIDSet(std::set<LLUUID>& participant_uuids);
-		
-		typedef std::map<const std::string*, sessionState*, stringMapComparitor> sessionMap;
-		typedef std::set<sessionState*> sessionSet;
-				
-		typedef sessionSet::iterator sessionIterator;
-		sessionIterator sessionsBegin(void);
-		sessionIterator sessionsEnd(void);
-
-		sessionState *findSession(const std::string &handle);
-		sessionState *findSessionBeingCreatedByURI(const std::string &uri);
-		sessionState *findSession(const LLUUID &participant_id);
-		sessionState *findSessionByCreateID(const std::string &create_id);
-		
-		sessionState *addSession(const std::string &uri, const std::string &handle = LLStringUtil::null);
-		void setSessionHandle(sessionState *session, const std::string &handle = LLStringUtil::null);
-		void setSessionURI(sessionState *session, const std::string &uri);
-		void deleteSession(sessionState *session);
-		void deleteAllSessions(void);
+	virtual void init(LLPumpIO *pump)=0;	// Call this once at application startup (creates connector)
+	virtual void terminate()=0;	// Call this to clean up during shutdown
+	
+	virtual void updateSettings()=0; // call after loading settings and whenever they change
+	
+	virtual bool isVoiceWorking()=0; // connected to a voice server and voice channel
 
-		void verifySessionState(void);
+	virtual const LLVoiceVersionInfo& getVersion()=0;
+	
+	/////////////////////
+	/// @name Tuning
+	//@{
+	virtual void tuningStart()=0;
+	virtual void tuningStop()=0;
+	virtual bool inTuningMode()=0;
+	
+	virtual void tuningSetMicVolume(float volume)=0;
+	virtual void tuningSetSpeakerVolume(float volume)=0;
+	virtual float tuningGetEnergy(void)=0;
+	//@}
+	
+	/////////////////////
+	/// @name Devices
+	//@{
+	// This returns true when it's safe to bring up the "device settings" dialog in the prefs.
+	// i.e. when the daemon is running and connected, and the device lists are populated.
+	virtual bool deviceSettingsAvailable()=0;
+	
+	// Requery the vivox daemon for the current list of input/output devices.
+	// If you pass true for clearCurrentList, deviceSettingsAvailable() will be false until the query has completed
+	// (use this if you want to know when it's done).
+	// If you pass false, you'll have no way to know when the query finishes, but the device lists will not appear empty in the interim.
+	virtual void refreshDeviceLists(bool clearCurrentList = true)=0;
+	
+	virtual void setCaptureDevice(const std::string& name)=0;
+	virtual void setRenderDevice(const std::string& name)=0;
+	
+	virtual LLVoiceDeviceList& getCaptureDevices()=0;
+	virtual LLVoiceDeviceList& getRenderDevices()=0;
+	
+	virtual void getParticipantList(std::set<LLUUID> &participants)=0;
+	virtual bool isParticipant(const LLUUID& speaker_id)=0;
+	//@}
+	
+	////////////////////////////
+	/// @ name Channel stuff
+	//@{
+	// returns true iff the user is currently in a proximal (local spatial) channel.
+	// Note that gestures should only fire if this returns true.
+	virtual bool inProximalChannel()=0;
+	
+	virtual void setNonSpatialChannel(const std::string &uri,
+									  const std::string &credentials)=0;
+	
+	virtual void setSpatialChannel(const std::string &uri,
+								   const std::string &credentials)=0;
+	
+	virtual void leaveNonSpatialChannel()=0;
+	
+	virtual void leaveChannel(void)=0;	
+	
+	// Returns the URI of the current channel, or an empty string if not currently in a channel.
+	// NOTE that it will return an empty string if it's in the process of joining a channel.
+	virtual std::string getCurrentChannel()=0;
+	//@}
+	
+	
+	//////////////////////////
+	/// @name invitations
+	//@{
+	// start a voice channel with the specified user
+	virtual void callUser(const LLUUID &uuid)=0;
+	virtual bool answerInvite(std::string &channelHandle)=0;
+	virtual void declineInvite(std::string &channelHandle)=0;
+	//@}
+	
+	/////////////////////////
+	/// @name Volume/gain
+	//@{
+	virtual void setVoiceVolume(F32 volume)=0;
+	virtual void setMicGain(F32 volume)=0;
+	//@}
+	
+	/////////////////////////
+	/// @name enable disable voice and features
+	//@{
+	virtual bool voiceEnabled()=0;
+	virtual void setVoiceEnabled(bool enabled)=0;
+	virtual void setLipSyncEnabled(BOOL enabled)=0;
+	virtual BOOL lipSyncEnabled()=0;	
+	virtual void setMuteMic(bool muted)=0;		// Use this to mute the local mic (for when the client is minimized, etc), ignoring user PTT state.
+	//@}
+	
+	////////////////////////
+	/// @name PTT
+	//@{
+	virtual void setUserPTTState(bool ptt)=0;
+	virtual bool getUserPTTState()=0;
+	virtual void setUsePTT(bool usePTT)=0;
+	virtual void setPTTIsToggle(bool PTTIsToggle)=0;
+	virtual bool getPTTIsToggle()=0;	
+	virtual void toggleUserPTTState(void)=0;
+	virtual void inputUserControlState(bool down)=0;  // interpret any sort of up-down mic-open control input according to ptt-toggle prefs
+	
+	virtual void keyDown(KEY key, MASK mask)=0;
+	virtual void keyUp(KEY key, MASK mask)=0;
+	virtual void middleMouseState(bool down)=0;
+	//@}
+	
+	//////////////////////////
+	/// @name nearby speaker accessors
+	//@{
+
+
+	virtual BOOL getVoiceEnabled(const LLUUID& id)=0;		// true if we've received data for this avatar
+	virtual std::string getDisplayName(const LLUUID& id)=0;
+	virtual BOOL isOnlineSIP(const LLUUID &id)=0;	
+	virtual BOOL isParticipantAvatar(const LLUUID &id)=0;
+	virtual BOOL getIsSpeaking(const LLUUID& id)=0;
+	virtual BOOL getIsModeratorMuted(const LLUUID& id)=0;
+	virtual F32 getCurrentPower(const LLUUID& id)=0;		// "power" is related to "amplitude" in a defined way.  I'm just not sure what the formula is...
+	virtual BOOL getOnMuteList(const LLUUID& id)=0;
+	virtual F32 getUserVolume(const LLUUID& id)=0;
+	virtual void setUserVolume(const LLUUID& id, F32 volume)=0; // set's volume for specified agent, from 0-1 (where .5 is nominal)	
+	//@}
+	
+	//////////////////////////
+	/// @name text chat
+	//@{
+	virtual BOOL isSessionTextIMPossible(const LLUUID& id)=0;
+	virtual BOOL isSessionCallBackPossible(const LLUUID& id)=0;
+	virtual BOOL sendTextMessage(const LLUUID& participant_id, const std::string& message)=0;
+	virtual void endUserIMSession(const LLUUID &uuid)=0;	
+	//@}
+	
+	// authorize the user
+	virtual void userAuthorized(const std::string& user_id,
+								const LLUUID &agentID)=0;
+	
+	//////////////////////////////
+	/// @name Status notification
+	//@{
+	virtual void addObserver(LLVoiceClientStatusObserver* observer)=0;
+	virtual void removeObserver(LLVoiceClientStatusObserver* observer)=0;
+	virtual void addObserver(LLFriendObserver* observer)=0;
+	virtual void removeObserver(LLFriendObserver* observer)=0;	
+	virtual void addObserver(LLVoiceClientParticipantObserver* observer)=0;
+	virtual void removeObserver(LLVoiceClientParticipantObserver* observer)=0;	
+	//@}
+	
+	virtual std::string sipURIFromID(const LLUUID &id)=0;
+	//@}
+	
+};
 
-		void joinedAudioSession(sessionState *session);
-		void leftAudioSession(sessionState *session);
 
-		// This is called in several places where the session _may_ need to be deleted.
-		// It contains logic for whether to delete the session or keep it around.
-		void reapSession(sessionState *session);
-		
-		// Returns true if the session seems to indicate we've moved to a region on a different voice server
-		bool sessionNeedsRelog(sessionState *session);
-		
-		struct buddyListEntry
-		{
-			buddyListEntry(const std::string &uri);
-			std::string mURI;
-			std::string mDisplayName;
-			LLUUID	mUUID;
-			bool mOnlineSL;
-			bool mOnlineSLim;
-			bool mCanSeeMeOnline;
-			bool mHasBlockListEntry;
-			bool mHasAutoAcceptListEntry;
-			bool mNameResolved;
-			bool mInSLFriends;
-			bool mInVivoxBuddies;
-			bool mNeedsNameUpdate;
-		};
-
-		typedef std::map<const std::string*, buddyListEntry*, stringMapComparitor> buddyListMap;
-		
-		// This should be called when parsing a buddy list entry sent by SLVoice.		
-		void processBuddyListEntry(const std::string &uri, const std::string &displayName);
-
-		buddyListEntry *addBuddy(const std::string &uri);
-		buddyListEntry *addBuddy(const std::string &uri, const std::string &displayName);
-		buddyListEntry *findBuddy(const std::string &uri);
-		buddyListEntry *findBuddy(const LLUUID &id);
-		buddyListEntry *findBuddyByDisplayName(const std::string &name);
-		void deleteBuddy(const std::string &uri);
-		void deleteAllBuddies(void);
-
-		void deleteAllBlockRules(void);
-		void addBlockRule(const std::string &blockMask, const std::string &presenceOnly);
-		void deleteAllAutoAcceptRules(void);
-		void addAutoAcceptRule(const std::string &autoAcceptMask, const std::string &autoAddAsBuddy);
-		void accountListBlockRulesResponse(int statusCode, const std::string &statusString);						
-		void accountListAutoAcceptRulesResponse(int statusCode, const std::string &statusString);						
-		
-		/////////////////////////////
-		// session control messages
-		void connectorCreate();
-		void connectorShutdown();
-
-		void requestVoiceAccountProvision(S32 retries = 3);
-		void userAuthorized(
-			const std::string& firstName,
-			const std::string& lastName,
-			const LLUUID &agentID);
-		void login(
-			const std::string& account_name,
-			const std::string& password,
-			const std::string& voice_sip_uri_hostname,
-			const std::string& voice_account_server_uri);
-		void loginSendMessage();
-		void logout();
-		void logoutSendMessage();
-
-		void accountListBlockRulesSendMessage();
-		void accountListAutoAcceptRulesSendMessage();
-		
-		void sessionGroupCreateSendMessage();
-		void sessionCreateSendMessage(sessionState *session, bool startAudio = true, bool startText = false);
-		void sessionGroupAddSessionSendMessage(sessionState *session, bool startAudio = true, bool startText = false);
-		void sessionMediaConnectSendMessage(sessionState *session);		// just joins the audio session
-		void sessionTextConnectSendMessage(sessionState *session);		// just joins the text session
-		void sessionTerminateSendMessage(sessionState *session);
-		void sessionGroupTerminateSendMessage(sessionState *session);
-		void sessionMediaDisconnectSendMessage(sessionState *session);
-		void sessionTextDisconnectSendMessage(sessionState *session);
-
-		// Pokes the state machine to leave the audio session next time around.
-		void sessionTerminate();	
-		
-		// Pokes the state machine to shut down the connector and restart it.
-		void requestRelog();
-		
-		// Does the actual work to get out of the audio session
-		void leaveAudioSession();
-		
-		void addObserver(LLVoiceClientParticipantObserver* observer);
-		void removeObserver(LLVoiceClientParticipantObserver* observer);
+class LLVoiceClient: public LLSingleton<LLVoiceClient>
+{
+	LOG_CLASS(LLVoiceClient);
+public:
+	LLVoiceClient();	
+	~LLVoiceClient();
 
-		void addObserver(LLVoiceClientStatusObserver* observer);
-		void removeObserver(LLVoiceClientStatusObserver* observer);
+	void init(LLPumpIO *pump);	// Call this once at application startup (creates connector)
+	void terminate();	// Call this to clean up during shutdown
+	
+	const LLVoiceVersionInfo getVersion();
+	
+static const F32 OVERDRIVEN_POWER_LEVEL;
 
-		void addObserver(LLFriendObserver* observer);
-		void removeObserver(LLFriendObserver* observer);
-		
-		void lookupName(const LLUUID &id);
-		static void onAvatarNameLookup(const LLUUID& id, const std::string& first, const std::string& last, BOOL is_group);
-		void avatarNameResolved(const LLUUID &id, const std::string &name);
-		
-		typedef std::vector<std::string> deviceList;
+	void updateSettings(); // call after loading settings and whenever they change
 
-		deviceList *getCaptureDevices();
-		deviceList *getRenderDevices();
-		
-		void setNonSpatialChannel(
-			const std::string &uri,
-			const std::string &credentials);
-		void setSpatialChannel(
-			const std::string &uri,
-			const std::string &credentials);
-		// start a voice session with the specified user
-		void callUser(const LLUUID &uuid);
-		
-		// Send a text message to the specified user, initiating the session if necessary.
-		bool sendTextMessage(const LLUUID& participant_id, const std::string& message);
-		
-		// close any existing text IM session with the specified user
-		void endUserIMSession(const LLUUID &uuid);
-		
-		bool answerInvite(std::string &sessionHandle);
-		void declineInvite(std::string &sessionHandle);
-		void leaveNonSpatialChannel();
+	bool isVoiceWorking(); // connected to a voice server and voice channel
 
-		// Returns the URI of the current channel, or an empty string if not currently in a channel.
-		// NOTE that it will return an empty string if it's in the process of joining a channel.
-		std::string getCurrentChannel();
+	// tuning
+	void tuningStart();
+	void tuningStop();
+	bool inTuningMode();
 		
-		// returns true iff the user is currently in a proximal (local spatial) channel.
-		// Note that gestures should only fire if this returns true.
-		bool inProximalChannel();
-
-		std::string sipURIFromID(const LLUUID &id);
+	void tuningSetMicVolume(float volume);
+	void tuningSetSpeakerVolume(float volume);
+	float tuningGetEnergy(void);
 				
-		// Returns true if the indicated user is online via SIP presence according to SLVoice.
-		// Note that we only get SIP presence data for other users that are in our vivox buddy list.
-		bool isOnlineSIP(const LLUUID &id);
-
-		// Returns true if the indicated participant is really an SL avatar.
-		// This should be used to control the state of the "profile" button.
-		// Currently this will be false only for PSTN callers into group chats, and PSTN p2p calls.
-		bool isParticipantAvatar(const LLUUID &id);
-		
-		// Returns true if calling back the session URI after the session has closed is possible.
-		// Currently this will be false only for PSTN P2P calls.		
-		// NOTE: this will return true if the session can't be found. 
-		bool isSessionCallBackPossible(const LLUUID &session_id);
-		
-		// Returns true if the session can accepte text IM's.
-		// Currently this will be false only for PSTN P2P calls.
-		// NOTE: this will return true if the session can't be found. 
-		bool isSessionTextIMPossible(const LLUUID &session_id);
-		
-	private:
-
-		// internal state for a simple state machine.  This is used to deal with the asynchronous nature of some of the messages.
-		// Note: if you change this list, please make corresponding changes to LLVoiceClient::state2string().
-		enum state
-		{
-			stateDisableCleanup,
-			stateDisabled,				// Voice is turned off.
-			stateStart,					// Class is initialized, socket is created
-			stateDaemonLaunched,		// Daemon has been launched
-			stateConnecting,			// connect() call has been issued
-			stateConnected,				// connection to the daemon has been made, send some initial setup commands.
-			stateIdle,					// socket is connected, ready for messaging
-			stateMicTuningStart,
-			stateMicTuningRunning,		
-			stateMicTuningStop,
-			stateConnectorStart,		// connector needs to be started
-			stateConnectorStarting,		// waiting for connector handle
-			stateConnectorStarted,		// connector handle received
-			stateLoginRetry,			// need to retry login (failed due to changing password)
-			stateLoginRetryWait,		// waiting for retry timer
-			stateNeedsLogin,			// send login request
-			stateLoggingIn,				// waiting for account handle
-			stateLoggedIn,				// account handle received
-			stateCreatingSessionGroup,	// Creating the main session group
-			stateNoChannel,				// 
-			stateJoiningSession,		// waiting for session handle
-			stateSessionJoined,			// session handle received
-			stateRunning,				// in session, steady state
-			stateLeavingSession,		// waiting for terminate session response
-			stateSessionTerminated,		// waiting for terminate session response
-
-			stateLoggingOut,			// waiting for logout response
-			stateLoggedOut,				// logout response received
-			stateConnectorStopping,		// waiting for connector stop
-			stateConnectorStopped,		// connector stop received
-			
-			// We go to this state if the login fails because the account needs to be provisioned.
-			
-			// error states.  No way to recover from these yet.
-			stateConnectorFailed,
-			stateConnectorFailedWaiting,
-			stateLoginFailed,
-			stateLoginFailedWaiting,
-			stateJoinSessionFailed,
-			stateJoinSessionFailedWaiting,
-
-			stateJail					// Go here when all else has failed.  Nothing will be retried, we're done.
-		};
-		
-		state mState;
-		bool mSessionTerminateRequested;
-		bool mRelogRequested;
-		// Number of times (in a row) "stateJoiningSession" case for spatial channel is reached in stateMachine().
-		// The larger it is the greater is possibility there is a problem with connection to voice server.
-		// Introduced while fixing EXT-4313.
-		int mSpatialJoiningNum;
-		
-		void setState(state inState);
-		state getState(void)  { return mState; };
-		static std::string state2string(state inState);
-		
-		void stateMachine();
-		static void idle(void *user_data);
-		
-		LLHost mDaemonHost;
-		LLSocket::ptr_t mSocket;
-		bool mConnected;
-		
-		void closeSocket(void);
-		
-		LLPumpIO *mPump;
-		friend class LLVivoxProtocolParser;
-		
-		std::string mAccountName;
-		std::string mAccountPassword;
-		std::string mAccountDisplayName;
-		std::string mAccountFirstName;
-		std::string mAccountLastName;
-				
-		bool mTuningMode;
-		float mTuningEnergy;
-		std::string mTuningAudioFile;
-		int mTuningMicVolume;
-		bool mTuningMicVolumeDirty;
-		int mTuningSpeakerVolume;
-		bool mTuningSpeakerVolumeDirty;
-		state mTuningExitState;					// state to return to when we leave tuning mode.
+	// devices
+	
+	// This returns true when it's safe to bring up the "device settings" dialog in the prefs.
+	// i.e. when the daemon is running and connected, and the device lists are populated.
+	bool deviceSettingsAvailable();
 		
-		std::string mSpatialSessionURI;
-		std::string mSpatialSessionCredentials;
+	// Requery the vivox daemon for the current list of input/output devices.
+	// If you pass true for clearCurrentList, deviceSettingsAvailable() will be false until the query has completed
+	// (use this if you want to know when it's done).
+	// If you pass false, you'll have no way to know when the query finishes, but the device lists will not appear empty in the interim.
+	void refreshDeviceLists(bool clearCurrentList = true);
 
-		std::string mMainSessionGroupHandle; // handle of the "main" session group.
-		
-		std::string mChannelName;			// Name of the channel to be looked up 
-		bool mAreaVoiceDisabled;
-		sessionState *mAudioSession;		// Session state for the current audio session
-		bool mAudioSessionChanged;			// set to true when the above pointer gets changed, so observers can be notified.
+	void setCaptureDevice(const std::string& name);
+	void setRenderDevice(const std::string& name);
 
-		sessionState *mNextAudioSession;	// Session state for the audio session we're trying to join
+	const LLVoiceDeviceList& getCaptureDevices();
+	const LLVoiceDeviceList& getRenderDevices();
 
-//		std::string mSessionURI;			// URI of the session we're in.
-//		std::string mSessionHandle;		// returned by ?
-		
-		S32 mCurrentParcelLocalID;			// Used to detect parcel boundary crossings
-		std::string mCurrentRegionName;		// Used to detect parcel boundary crossings
-		
-		std::string mConnectorHandle;	// returned by "Create Connector" message
-		std::string mAccountHandle;		// returned by login message		
-		int 		mNumberOfAliases;
-		U32 mCommandCookie;
+	////////////////////////////
+	// Channel stuff
+	//
+	
+	// returns true iff the user is currently in a proximal (local spatial) channel.
+	// Note that gestures should only fire if this returns true.
+	bool inProximalChannel();
+	void setNonSpatialChannel(
+							  const std::string &uri,
+							  const std::string &credentials);
+	void setSpatialChannel(
+						   const std::string &uri,
+						   const std::string &credentials);
+	void leaveNonSpatialChannel();
+	
+	// Returns the URI of the current channel, or an empty string if not currently in a channel.
+	// NOTE that it will return an empty string if it's in the process of joining a channel.
+	std::string getCurrentChannel();
+	// start a voice channel with the specified user
+	void callUser(const LLUUID &uuid);	
+	bool answerInvite(std::string &channelHandle);
+	void declineInvite(std::string &channelHandle);	
+	void leaveChannel(void);		// call this on logout or teleport begin
+	
+	
+	/////////////////////////////
+	// Sending updates of current state
 	
-		std::string mVoiceAccountServerURI;
-		std::string mVoiceSIPURIHostName;
-		
-		int mLoginRetryCount;
-		
-		sessionMap mSessionsByHandle;				// Active sessions, indexed by session handle.  Sessions which are being initiated may not be in this map.
-		sessionSet mSessions;						// All sessions, not indexed.  This is the canonical session list.
-		
-		bool mBuddyListMapPopulated;
-		bool mBlockRulesListReceived;
-		bool mAutoAcceptRulesListReceived;
-		buddyListMap mBuddyListMap;
-		
-		deviceList mCaptureDevices;
-		deviceList mRenderDevices;
-
-		std::string mCaptureDevice;
-		std::string mRenderDevice;
-		bool mCaptureDeviceDirty;
-		bool mRenderDeviceDirty;
-		
-		// This should be called when the code detects we have changed parcels.
-		// It initiates the call to the server that gets the parcel channel.
-		void parcelChanged();
-		
-	void switchChannel(std::string uri = std::string(), bool spatial = true, bool no_reconnect = false, bool is_p2p = false, std::string hash = "");
-		void joinSession(sessionState *session);
-		
-static 	std::string nameFromAvatar(LLVOAvatar *avatar);
-static	std::string nameFromID(const LLUUID &id);
-static	bool IDFromName(const std::string name, LLUUID &uuid);
-static	std::string displayNameFromAvatar(LLVOAvatar *avatar);
-		std::string sipURIFromAvatar(LLVOAvatar *avatar);
-		std::string sipURIFromName(std::string &name);
-		
-		// Returns the name portion of the SIP URI if the string looks vaguely like a SIP URI, or an empty string if not.
-static	std::string nameFromsipURI(const std::string &uri);		
 
-		bool inSpatialChannel(void);
-		std::string getAudioSessionURI();
-		std::string getAudioSessionHandle();
-				
-		void sendPositionalUpdate(void);
-		
-		void buildSetCaptureDevice(std::ostringstream &stream);
-		void buildSetRenderDevice(std::ostringstream &stream);
-		void buildLocalAudioUpdates(std::ostringstream &stream);
-		
-		void clearAllLists();
-		void checkFriend(const LLUUID& id);
-		void sendFriendsListUpdates();
-
-		// start a text IM session with the specified user
-		// This will be asynchronous, the session may be established at a future time.
-		sessionState* startUserIMSession(const LLUUID& uuid);
-		void sendQueuedTextMessages(sessionState *session);
-		
-		void enforceTether(void);
-		
-		bool		mSpatialCoordsDirty;
-		
-		LLVector3d	mCameraPosition;
-		LLVector3d	mCameraRequestedPosition;
-		LLVector3	mCameraVelocity;
-		LLMatrix3	mCameraRot;
-
-		LLVector3d	mAvatarPosition;
-		LLVector3	mAvatarVelocity;
-		LLMatrix3	mAvatarRot;
-		
-		bool		mPTTDirty;
-		bool		mPTT;
-		
-		bool		mUsePTT;
-		bool		mPTTIsMiddleMouse;
-		KEY			mPTTKey;
-		bool		mPTTIsToggle;
-		bool		mUserPTTState;
-		bool		mMuteMic;
-				
-		// Set to true when the friends list is known to have changed.
-		bool		mFriendsListDirty;
-		
-		enum
-		{
-			earLocCamera = 0,		// ear at camera
-			earLocAvatar,			// ear at avatar
-			earLocMixed				// ear at avatar location/camera direction
-		};
-		
-		S32			mEarLocation;  
-		
-		bool		mSpeakerVolumeDirty;
-		bool		mSpeakerMuteDirty;
-		int			mSpeakerVolume;
+	void setVoiceVolume(F32 volume);
+	void setMicGain(F32 volume);
+	void setUserVolume(const LLUUID& id, F32 volume); // set's volume for specified agent, from 0-1 (where .5 is nominal)		
+	bool voiceEnabled();
+	void setLipSyncEnabled(BOOL enabled);
+	void setMuteMic(bool muted);		// Use this to mute the local mic (for when the client is minimized, etc), ignoring user PTT state.
+	void setUserPTTState(bool ptt);
+	bool getUserPTTState();
+	void toggleUserPTTState(void);
+	void inputUserControlState(bool down);  // interpret any sort of up-down mic-open control input according to ptt-toggle prefs	
+	void setVoiceEnabled(bool enabled);
+
+	void setUsePTT(bool usePTT);
+	void setPTTIsToggle(bool PTTIsToggle);
+	bool getPTTIsToggle();	
+	
+	BOOL lipSyncEnabled();
+	
+	// PTT key triggering
+	void keyDown(KEY key, MASK mask);
+	void keyUp(KEY key, MASK mask);
+	void middleMouseState(bool down);
+	
+	
+	/////////////////////////////
+	// Accessors for data related to nearby speakers
+	BOOL getVoiceEnabled(const LLUUID& id);		// true if we've received data for this avatar
+	std::string getDisplayName(const LLUUID& id);	
+	BOOL isOnlineSIP(const LLUUID &id);
+	BOOL isParticipantAvatar(const LLUUID &id);
+	BOOL getIsSpeaking(const LLUUID& id);
+	BOOL getIsModeratorMuted(const LLUUID& id);
+	F32 getCurrentPower(const LLUUID& id);		// "power" is related to "amplitude" in a defined way.  I'm just not sure what the formula is...
+	BOOL getOnMuteList(const LLUUID& id);
+	F32 getUserVolume(const LLUUID& id);
+
+	/////////////////////////////
+	BOOL getAreaVoiceDisabled();		// returns true if the area the avatar is in is speech-disabled.
+													  // Use this to determine whether to show a "no speech" icon in the menu bar.
+	void getParticipantList(std::set<LLUUID> &participants);
+	bool isParticipant(const LLUUID& speaker_id);
+	
+	//////////////////////////
+	/// @name text chat
+	//@{
+	BOOL isSessionTextIMPossible(const LLUUID& id);
+	BOOL isSessionCallBackPossible(const LLUUID& id);
+	BOOL sendTextMessage(const LLUUID& participant_id, const std::string& message);
+	void endUserIMSession(const LLUUID &uuid);	
+	//@}
+	
 
-		int			mMicVolume;
-		bool		mMicVolumeDirty;
-		
-		bool		mVoiceEnabled;
-		bool		mWriteInProgress;
-		std::string mWriteString;
-		
-		LLTimer		mUpdateTimer;
+	void userAuthorized(const std::string& user_id,
+			const LLUUID &agentID);
+	
+	void addObserver(LLVoiceClientStatusObserver* observer);
+	void removeObserver(LLVoiceClientStatusObserver* observer);
+	void addObserver(LLFriendObserver* observer);
+	void removeObserver(LLFriendObserver* observer);
+	void addObserver(LLVoiceClientParticipantObserver* observer);
+	void removeObserver(LLVoiceClientParticipantObserver* observer);
+	
+	std::string sipURIFromID(const LLUUID &id);	
 		
-		BOOL		mLipSyncEnabled;
-
-		std::string	mAPIVersion;
-
-		typedef std::set<LLVoiceClientParticipantObserver*> observer_set_t;
-		observer_set_t mParticipantObservers;
+protected:
+	LLVoiceModuleInterface* mVoiceModule;
+	LLPumpIO *m_servicePump;
+};
 
-		void notifyParticipantObservers();
+/**
+ * Speaker volume storage helper class
+ **/
 
-		typedef std::set<LLVoiceClientStatusObserver*> status_observer_set_t;
-		status_observer_set_t mStatusObservers;
-		
-		void notifyStatusObservers(LLVoiceClientStatusObserver::EStatusType status);
+class LLSpeakerVolumeStorage : public LLSingleton<LLSpeakerVolumeStorage>
+{
+	LOG_CLASS(LLSpeakerVolumeStorage);
+public:
 
-		typedef std::set<LLFriendObserver*> friend_observer_set_t;
-		friend_observer_set_t mFriendObservers;
-		void notifyFriendObservers();
+	/**
+	 * Sets internal voluem level for specified user.
+	 *
+	 * @param[in] speaker_id - LLUUID of user to store volume level for
+	 * @param[in] volume - external volume level to be stored for user.
+	 */
+	void storeSpeakerVolume(const LLUUID& speaker_id, F32 volume);
+
+	/**
+	 * Gets stored external volume level for specified speaker.
+	 *
+	 * If specified user is not found default level will be returned. It is equivalent of 
+	 * external level 0.5 from the 0.0..1.0 range.
+	 * Default external level is calculated as: internal = 400 * external^2
+	 * Maps 0.0 to 1.0 to internal values 0-400 with default 0.5 == 100
+	 *
+	 * @param[in] speaker_id - LLUUID of user to get his volume level
+	 */
+	S32 getSpeakerVolume(const LLUUID& speaker_id);
+
+private:
+	friend class LLSingleton<LLSpeakerVolumeStorage>;
+	LLSpeakerVolumeStorage();
+	~LLSpeakerVolumeStorage();
+
+	const static std::string SETTINGS_FILE_NAME;
+
+	void load();
+	void save();
+
+	typedef std::map<LLUUID, F32> speaker_data_map_t;
+	speaker_data_map_t mSpeakersData;
 };
 
-extern LLVoiceClient *gVoiceClient;
-
 #endif //LL_VOICE_CLIENT_H