/**
 * @file llvoavatar.h
 * @brief Declaration of LLVOAvatar class which is a derivation of
 * LLViewerObject
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_VOAVATAR_H
#define LL_VOAVATAR_H

#include <map>
#include <deque>
#include <string>
#include <vector>

#include <boost/signals2/trackable.hpp>

#include "llsortedvector.h"

#include "llavatarappearance.h"
#include "llchat.h"
#include "lldrawpoolalpha.h"
#include "llviewerobject.h"
#include "llcharacter.h"
#include "llcontrol.h"
#include "llviewerjointmesh.h"
#include "llviewerjointattachment.h"
#include "llrendertarget.h"
#include "llavatarappearancedefines.h"
#include "lltexglobalcolor.h"
#include "lldriverparam.h"
#include "llviewertexlayer.h"
#include "material_codes.h"		// LL_MCODE_END
#include "llrigginginfo.h"
#include "llviewerstats.h"
#include "llvovolume.h"
#include "llavatarrendernotifier.h"

extern const LLUUID ANIM_AGENT_BODY_NOISE;
extern const LLUUID ANIM_AGENT_BREATHE_ROT;
extern const LLUUID ANIM_AGENT_PHYSICS_MOTION;
extern const LLUUID ANIM_AGENT_EDITING;
extern const LLUUID ANIM_AGENT_EYE;
extern const LLUUID ANIM_AGENT_FLY_ADJUST;
extern const LLUUID ANIM_AGENT_HAND_MOTION;
extern const LLUUID ANIM_AGENT_HEAD_ROT;
extern const LLUUID ANIM_AGENT_PELVIS_FIX;
extern const LLUUID ANIM_AGENT_TARGET;
extern const LLUUID ANIM_AGENT_WALK_ADJUST;

class LLViewerWearable;
class LLVoiceVisualizer;
class LLHUDNameTag;
class LLHUDEffectSpiral;
class LLTexGlobalColor;

struct LLAppearanceMessageContents;
class LLViewerJointMesh;

const F32 MAX_AVATAR_LOD_FACTOR = 1.0f;


//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// LLVOAvatar
// 
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
class LLVOAvatar :
	public LLAvatarAppearance,
	public LLViewerObject,
	public boost::signals2::trackable
{
	LOG_CLASS(LLVOAvatar);

public:
	friend class LLVOAvatarSelf;
	friend class LLAvatarCheckImpostorMode;

/********************************************************************************
 **                                                                            **
 **                    INITIALIZATION
 **/

public:
	void* operator new(size_t size)
	{
		return LLTrace::MemTrackable<LLViewerObject>::aligned_new<16>(size);
	}

	void operator delete(void* ptr, size_t size)
	{
		LLTrace::MemTrackable<LLViewerObject>::aligned_delete<16>(ptr, size);
	}

	LLVOAvatar(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
	void		markDead() override;
	static void			initClass(); // Initialize data that's only init'd once per class.
	static void			cleanupClass();	// Cleanup data that's only init'd once per class.
	void 		initInstance() override; // Called after construction to initialize the class.
protected:
	virtual				~LLVOAvatar();

/**                    Initialization
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    INHERITED
 **/

	//--------------------------------------------------------------------
	// LLViewerObject interface and related
	//--------------------------------------------------------------------
public:
	/*virtual*/ void			updateGL() override;
	/*virtual*/ LLVOAvatar*		asAvatar() override;

	virtual U32    	 	 	processUpdateMessage(LLMessageSystem *mesgsys,
													 void **user_data,
													 U32 block_num,
													 const EObjectUpdateType update_type,
													 LLDataPacker *dp) override;
	virtual void   	 	 	idleUpdate(LLAgent &agent, const F64 &time) override;
	/*virtual*/ BOOL   	 	 	updateLOD() override;
	BOOL  	 	 	 	 	updateJointLODs();
	void					updateLODRiggedAttachments( void );
	/*virtual*/ BOOL   	 	 	isActive() const override; // Whether this object needs to do an idleUpdate.
	S32Bytes				totalTextureMemForUUIDS(std::set<LLUUID>& ids);
	bool 						allTexturesCompletelyDownloaded(std::set<LLUUID>& ids) const;
	bool 						allLocalTexturesCompletelyDownloaded() const;
	bool 						allBakedTexturesCompletelyDownloaded() const;
	void 						bakedTextureOriginCounts(S32 &sb_count, S32 &host_count,
														 S32 &both_count, S32 &neither_count);
	std::string 				bakedTextureOriginInfo();
	void 						collectLocalTextureUUIDs(std::set<LLUUID>& ids) const;
	void 						collectBakedTextureUUIDs(std::set<LLUUID>& ids) const;
	void 						collectTextureUUIDs(std::set<LLUUID>& ids);
	void						releaseOldTextures();
	/*virtual*/ void   	 	 	updateTextures() override;
	LLViewerFetchedTexture*		getBakedTextureImage(const U8 te, const LLUUID& uuid);
	/*virtual*/ S32    	 	 	setTETexture(const U8 te, const LLUUID& uuid) override; // If setting a baked texture, need to request it from a non-local sim.
	/*virtual*/ void   	 	 	onShift(const LLVector4a& shift_vector) override;
	/*virtual*/ U32    	 	 	getPartitionType() const override;
	/*virtual*/ const  	 	 	LLVector3 getRenderPosition() const override;
	/*virtual*/ void   	 	 	updateDrawable(BOOL force_damped) override;
	/*virtual*/ LLDrawable* 	createDrawable(LLPipeline *pipeline) override;
	/*virtual*/ BOOL   	 	 	updateGeometry(LLDrawable *drawable) override;
	/*virtual*/ void   	 	 	setPixelAreaAndAngle(LLAgent &agent) override;
	/*virtual*/ void   	 	 	updateRegion(LLViewerRegion *regionp) override;
	/*virtual*/ void   	 	 	updateSpatialExtents(LLVector4a& newMin, LLVector4a &newMax) override;
	void			   	 	 	calculateSpatialExtents(LLVector4a& newMin, LLVector4a& newMax);
	/*virtual*/ BOOL   	 	 	lineSegmentIntersect(const LLVector4a& start, const LLVector4a& end,
												 S32 face = -1,                    // which face to check, -1 = ALL_SIDES
												 BOOL pick_transparent = FALSE,
												 BOOL pick_rigged = FALSE,
												 S32* face_hit = NULL,             // which face was hit
												 LLVector4a* intersection = NULL,   // return the intersection point
												 LLVector2* tex_coord = NULL,      // return the texture coordinates of the intersection point
												 LLVector4a* normal = NULL,         // return the surface normal at the intersection point
												 LLVector4a* tangent = NULL) override;     // return the surface tangent at the intersection point
	virtual LLViewerObject*	lineSegmentIntersectRiggedAttachments(
                                                 const LLVector4a& start, const LLVector4a& end,
												 S32 face = -1,                    // which face to check, -1 = ALL_SIDES
												 BOOL pick_transparent = FALSE,
												 BOOL pick_rigged = FALSE,
												 S32* face_hit = NULL,             // which face was hit
												 LLVector4a* intersection = NULL,   // return the intersection point
												 LLVector2* tex_coord = NULL,      // return the texture coordinates of the intersection point
												 LLVector4a* normal = NULL,         // return the surface normal at the intersection point
												 LLVector4a* tangent = NULL);     // return the surface tangent at the intersection point

	//--------------------------------------------------------------------
	// LLCharacter interface and related
	//--------------------------------------------------------------------
public:
	/*virtual*/ LLVector3    	getCharacterPosition() override;
	/*virtual*/ LLQuaternion 	getCharacterRotation() override;
	/*virtual*/ LLVector3    	getCharacterVelocity() override;
	/*virtual*/ LLVector3    	getCharacterAngularVelocity() override;

	LLUUID			remapMotionID(const LLUUID& id);
	/*virtual*/ BOOL			startMotion(const LLUUID& id, F32 time_offset = 0.f) override;
	/*virtual*/ BOOL			stopMotion(const LLUUID& id, BOOL stop_immediate = FALSE) override;
	virtual bool			hasMotionFromSource(const LLUUID& source_id);
	virtual void			stopMotionFromSource(const LLUUID& source_id);
	virtual void			requestStopMotion(LLMotion* motion) override;
	LLMotion*				findMotion(const LLUUID& id) const;
	void					startDefaultMotions();
	void					dumpAnimationState();

	virtual LLJoint*		getJoint(const std::string &name) override;
	LLJoint*		        getJoint(S32 num);

	void 					addAttachmentOverridesForObject(LLViewerObject *vo, std::set<LLUUID>* meshes_seen = NULL, bool recursive = true);
	void					removeAttachmentOverridesForObject(const LLUUID& mesh_id);
	void					removeAttachmentOverridesForObject(LLViewerObject *vo);
    bool					jointIsRiggedTo(const LLJoint *joint) const;
	void					clearAttachmentOverrides();
	void					rebuildAttachmentOverrides();
    void					updateAttachmentOverrides();
    void                    showAttachmentOverrides(bool verbose = false) const;
    void                    getAttachmentOverrideNames(std::set<std::string>& pos_names, 
                                                       std::set<std::string>& scale_names) const;

    void 					getAssociatedVolumes(std::vector<LLVOVolume*>& volumes);

    // virtual
    void 					updateRiggingInfo() override;
    
    size_t mLastAssocVolSize = 0;
	// This encodes mesh id and LOD, so we can see whether display is up-to-date.
    using rigging_info_hash_vec_t = std::vector<std::pair<LLUUID, S32>>;
	size_t mLastRiggingInfoKeyHash = 0;
    size_t mLastRiggingInfoMeshCount = 0;
	
    std::set<LLUUID>		mActiveOverrideMeshes;
    void			onActiveOverrideMeshesChanged();
    
	/*virtual*/ const LLUUID&	getID() const override;
	/*virtual*/ void			addDebugText(const std::string& text) override;
	/*virtual*/ F32				getTimeDilation() override;
	/*virtual*/ void			getGround(const LLVector3 &inPos, LLVector3 &outPos, LLVector3 &outNorm) override;
	/*virtual*/ F32				getPixelArea() const override;
	/*virtual*/ LLVector3d		getPosGlobalFromAgent(const LLVector3 &position) override;
	/*virtual*/ LLVector3		getPosAgentFromGlobal(const LLVector3d &position) override;
	virtual void				updateVisualParams() override;

/**                    Inherited
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    STATE
 **/

public:
	bool 	isSelf() const override { return false; } // True if this avatar is for this viewer's agent

	virtual bool 	isControlAvatar() const { return mIsControlAvatar; } // True if this avatar is a control av (no associated user)
	virtual bool 	isUIAvatar() const { return mIsUIAvatar; } // True if this avatar is a supplemental av used in some UI views (no associated user)

	// If this is an attachment, return the avatar it is attached to. Otherwise NULL.
	virtual const LLVOAvatar *getAttachedAvatar() const { return NULL; }
	virtual LLVOAvatar *getAttachedAvatar() { return NULL; }


private: //aligned members
	LL_ALIGN_16(LLVector4a	mImpostorExtents[2]);

	//--------------------------------------------------------------------
	// Updates
	//--------------------------------------------------------------------
public:
    void			updateAppearanceMessageDebugText();
	void 			updateAnimationDebugText();
	virtual void	updateDebugText();
	virtual bool 	computeNeedsUpdate();
	virtual bool 	updateCharacter(LLAgent &agent);
    void			updateFootstepSounds();
    void			computeUpdatePeriod();
    void			updateOrientation(LLAgent &agent, F32 speed, F32 delta_time);
    void			updateTimeStep();
    void			updateRootPositionAndRotation(LLAgent &agent, F32 speed, bool was_sit_ground_constrained);
    
	void 			idleUpdateVoiceVisualizer(bool voice_enabled);
	void 			idleUpdateMisc(bool detailed_update);
	virtual void	idleUpdateAppearanceAnimation();
	void 			idleUpdateLipSync(bool voice_enabled);
	void 			idleUpdateLoadingEffect();
	void 			idleUpdateWindEffect();
	void 			idleUpdateNameTag(const LLVector3& root_pos_last);
	void			idleUpdateNameTagText(bool new_name);
	void			idleUpdateNameTagPosition(const LLVector3& root_pos_last);
	void			idleUpdateNameTagAlpha(bool new_name, F32 alpha);
	LLColor4		getNameTagColor(bool is_friend);
	void			clearNameTag();
	static void		invalidateNameTag(const LLUUID& agent_id);
	// force all name tags to rebuild, useful when display names turned on/off
	static void		invalidateNameTags();
	void			addNameTagLine(const std::string& line, const LLColor4& color, S32 style, const LLFontGL* font, const bool use_ellipses = false);
	void 			idleUpdateRenderComplexity();
	void 			idleUpdateDebugInfo();
    void 			accountRenderComplexityForObject(const LLViewerObject *attached_object,
                                                     const F32 max_attachment_complexity,
                                                     LLVOVolume::texture_cost_t& textures,
                                                     U32& cost,
                                                     hud_complexity_list_t& hud_complexity_list);
	void			calculateUpdateRenderComplexity();
	static const U32 VISUAL_COMPLEXITY_UNKNOWN;
	void			updateVisualComplexity();
	
	U32				getVisualComplexity()			{ return mVisualComplexity;				};		// Numbers calculated here by rendering AV
	F32				getAttachmentSurfaceArea()		{ return mAttachmentSurfaceArea;		};		// estimated surface area of attachments

	U32				getReportedVisualComplexity()					{ return mReportedVisualComplexity;				};	// Numbers as reported by the SL server
	void			setReportedVisualComplexity(U32 value)			{ mReportedVisualComplexity = value;			};
	
	S32				getUpdatePeriod()				{ return mUpdatePeriod;			};
	const LLColor4 &  getMutedAVColor()				{ return mMutedAVColor;			};
	static void     updateImpostorRendering(U32 newMaxNonImpostorsValue);

	void 			idleUpdateBelowWater();

	//--------------------------------------------------------------------
	// Static preferences (controlled by user settings/menus)
	//--------------------------------------------------------------------
public:
	static S32		sRenderName;
	static BOOL		sRenderGroupTitles;
	static const U32 NON_IMPOSTORS_MAX_SLIDER; /* Must equal the maximum allowed the RenderAvatarMaxNonImpostors
												* slider in panel_preferences_graphics1.xml */
	static U32		sMaxNonImpostors; // affected by control "RenderAvatarMaxNonImpostors"
	static bool		sLimitNonImpostors; // use impostors for far away avatars
	static F32		sRenderDistance; // distance at which avatars will render.
	static BOOL		sShowAnimationDebug; // show animation debug info
	static BOOL		sShowFootPlane;	// show foot collision plane reported by server
	static BOOL		sShowCollisionVolumes;	// show skeletal collision volumes
	static BOOL		sVisibleInFirstPerson;
	static S32		sNumLODChangesThisFrame;
	static S32		sNumVisibleChatBubbles;
	static BOOL		sDebugInvisible;
	static BOOL		sShowAttachmentPoints;
	static F32		sLODFactor; // user-settable LOD factor
	static F32		sPhysicsLODFactor; // user-settable physics LOD factor
	static BOOL		sJointDebug; // output total number of joints being touched for each avatar
	static BOOL		sDebugAvatarRotation;

	//--------------------------------------------------------------------
	// Region state
	//--------------------------------------------------------------------
public:
	LLHost			getObjectHost() const;

	//--------------------------------------------------------------------
	// Loading state
	//--------------------------------------------------------------------
public:
	BOOL			isFullyLoaded() const;
	bool 			isTooComplex() const;
	bool 			visualParamWeightsAreDefault();
	virtual bool	getIsCloud() const;
	BOOL			isFullyTextured() const;
	BOOL			hasGray() const; 
	S32				getRezzedStatus() const; // 0 = cloud, 1 = gray, 2 = textured, 3 = textured and fully downloaded.
	void			updateRezzedStatusTimers(S32 status);
	S32 			getNumBakes() const;

	S32				mLastRezzedStatus;

	
	void 			startPhase(const std::string& phase_name);
	void 			stopPhase(const std::string& phase_name, bool err_check = true);
	void			clearPhases();
	void 			logPendingPhases();
	static void 	logPendingPhasesAllAvatars();
	void 			logMetricsTimerRecord(const std::string& phase_name, F32 elapsed, bool completed);

    void            calcMutedAVColor();

protected:
	LLViewerStats::PhaseMap& getPhases() { return mPhases; }
	BOOL			updateIsFullyLoaded();
	BOOL			processFullyLoadedChange(bool loading);
	void			updateRuthTimer(bool loading);
	F32 			calcMorphAmount();

private:
	BOOL			mFirstFullyVisible;
	BOOL			mFullyLoaded;
	BOOL			mPreviousFullyLoaded;
	BOOL			mFullyLoadedInitialized;
	S32				mFullyLoadedFrameCounter;
	LLColor4		mMutedAVColor;
	LLFrameTimer	mFullyLoadedTimer;
	LLFrameTimer	mRuthTimer;

private:
	LLViewerStats::PhaseMap mPhases;

protected:
	LLFrameTimer    mInvisibleTimer;
	
/**                    State
 **                                                                            **
 *******************************************************************************/
/********************************************************************************
 **                                                                            **
 **                    SKELETON
 **/

protected:
	/*virtual*/ LLAvatarJoint*	createAvatarJoint() override; // Returns LLViewerJoint
	/*virtual*/ LLAvatarJoint*	createAvatarJoint(S32 joint_num) override; // Returns LLViewerJoint
	/*virtual*/ LLAvatarJointMesh*	createAvatarJointMesh() override; // Returns LLViewerJointMesh
public:
	void				updateHeadOffset();
    void				debugBodySize() const;
	void				postPelvisSetRecalc( void );

	/*virtual*/ BOOL	loadSkeletonNode() override;
    void                initAttachmentPoints(bool ignore_hud_joints = false);
	/*virtual*/ void	buildCharacter() override;
    void                resetVisualParams();
	void				applyDefaultParams();
    void				resetSkeleton(bool reset_animations);

	LLVector3			mCurRootToHeadOffset;
	LLVector3			mTargetRootToHeadOffset;

	S32					mLastSkeletonSerialNum;


/**                    Skeleton
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    RENDERING
 **/

public:
	U32 		renderImpostor(LLColor4U color = LLColor4U(255,255,255,255), S32 diffuse_channel = 0);
	bool		isVisuallyMuted();
	bool 		isInMuteList() const;
	bool		isInBuddyList() const;
// [RLVa:KB] - Checked: RLVa-2.2 (@setcam_avdist)
	bool        isRlvSilhouette() const;
// [/RLVa:KB]
	void		forceUpdateVisualMuteSettings();

	// Visual Mute Setting is an input. Does not necessarily determine
	// what the avatar looks like, because it interacts with other
	// settings like muting, complexity threshold. Should be private or protected.
	enum VisualMuteSettings
	{
		AV_RENDER_NORMALLY = 0,
		AV_DO_NOT_RENDER   = 1,
		AV_ALWAYS_RENDER   = 2
	};
	void		setVisualMuteSettings(VisualMuteSettings set);

protected:
	// If you think you need to access this outside LLVOAvatar, you probably want getOverallAppearance()
	VisualMuteSettings  getVisualMuteSettings()						{ return mVisuallyMuteSetting;	};

public:

	// Overall Appearance is an output. Depending on whether the
	// avatar is blocked/muted, whether it exceeds the complexity
	// threshold, etc, avatar will want to be displayed in one of
	// these ways. Rendering code that wants to know how to display an
	// avatar should be looking at this value, NOT the visual mute
	// settings
	enum AvatarOverallAppearance
	{
		AOA_NORMAL,
		AOA_JELLYDOLL,
		AOA_INVISIBLE
	};

	AvatarOverallAppearance getOverallAppearance() const;
	void setOverallAppearanceNormal();
	void setOverallAppearanceJellyDoll();
	void setOverallAppearanceInvisible();
		
	void updateOverallAppearance();
	void updateOverallAppearanceAnimations();

	std::set<LLUUID> mJellyAnims;

	U32 		renderRigid();
	U32 		renderSkinned();
	F32			getLastSkinTime() { return mLastSkinTime; }
	U32 		renderTransparent(BOOL first_pass);
	void 		renderCollisionVolumes();
	void		renderBones(const std::string &selected_joint = std::string());
	void		renderJoints();
	static void	deleteCachedImages(bool clearAll=true);
	static void	destroyGL();
	static void	restoreGL();
	S32			mSpecialRenderMode; // special lighting
        
private:
	AvatarOverallAppearance mOverallAppearance;
	F32			mAttachmentSurfaceArea; //estimated surface area of attachments
    U32			mAttachmentVisibleTriangleCount;
    F32			mAttachmentEstTriangleCount;
	bool		shouldAlphaMask();

	BOOL 		mNeedsSkin; // avatar has been animated and verts have not been updated
	F32			mLastSkinTime; //value of gFrameTimeSeconds at last skin update

	S32	 		mUpdatePeriod;
	S32  		mNumInitFaces; //number of faces generated when creating the avatar drawable, does not inculde splitted faces due to long vertex buffer.

	// the isTooComplex method uses these mutable values to avoid recalculating too frequently
	mutable U32  mVisualComplexity;
	mutable bool mVisualComplexityStale;
	mutable F64  mVisualComplexityUpdateTime = 0.f;
	U32          mReportedVisualComplexity; // from other viewers through the simulator

	mutable bool		mCachedInMuteList;
	mutable F64			mCachedMuteListUpdateTime;
	mutable bool		mCachedInBuddyList;
	mutable F64			mCachedBuddyListUpdateTime;
// [RLVa:KB] - Checked: RLVa-2.2 (@setcam_avdist)
	mutable bool        mCachedIsRlvSilhouette = false;
	mutable F64         mCachedRlvSilhouetteUpdateTime = 0.f;
// [/RLVa:KB]

	VisualMuteSettings		mVisuallyMuteSetting;			// Always or never visually mute this AV

	//--------------------------------------------------------------------
	// animated object status
	//--------------------------------------------------------------------
public:
    bool mIsControlAvatar;
    bool mIsUIAvatar;
    bool mEnableDefaultMotions;

	//--------------------------------------------------------------------
	// Morph masks
	//--------------------------------------------------------------------
public:
	/*virtual*/ void	applyMorphMask(U8* tex_data, S32 width, S32 height, S32 num_components, LLAvatarAppearanceDefines::EBakedTextureIndex index = LLAvatarAppearanceDefines::BAKED_NUM_INDICES) override;
	BOOL 		morphMaskNeedsUpdate(LLAvatarAppearanceDefines::EBakedTextureIndex index = LLAvatarAppearanceDefines::BAKED_NUM_INDICES);

	
	//--------------------------------------------------------------------
	// Global colors
	//--------------------------------------------------------------------
public:
	/*virtual*/void onGlobalColorChanged(const LLTexGlobalColor* global_color, bool upload_bake) override;

	//--------------------------------------------------------------------
	// Visibility
	//--------------------------------------------------------------------
protected:
	void 		updateVisibility();
private:
	U32	 		mVisibilityRank;
	BOOL 		mVisible;
	
	//--------------------------------------------------------------------
	// Impostors
	//--------------------------------------------------------------------
public:
	virtual BOOL isImpostor();
	BOOL 		shouldImpostor(const F32 rank_factor = 1.0);
	BOOL 	    needsImpostorUpdate() const;
	const LLVector3& getImpostorOffset() const;
	const LLVector2& getImpostorDim() const;
	void 		getImpostorValues(LLVector4a* extents, LLVector3& angle, F32& distance) const;
	void 		cacheImpostorValues();
	void 		setImpostorDim(const LLVector2& dim);
	static void	resetImpostors();
	static void updateImpostors();
	LLRenderTarget mImpostor;
// [RLVa:KB] - Checked: RLVa-2.4 (@setcam_avdist)
	mutable BOOL mNeedsImpostorUpdate;
// [/RLVa:KB]
//	BOOL		mNeedsImpostorUpdate;
	S32			mLastImpostorUpdateReason;
	F32SecondsImplicit mLastImpostorUpdateFrameTime;
    const LLVector3*  getLastAnimExtents() const { return mLastAnimExtents; }
	void		setNeedsExtentUpdate(bool val) { mNeedsExtentUpdate = val; }

private:
	LLVector3	mImpostorOffset;
	LLVector2	mImpostorDim;
    // This becomes true in the constructor and false after the first
    // idleUpdateMisc(). Not clear it serves any purpose.
	BOOL		mNeedsAnimUpdate;
    bool		mNeedsExtentUpdate;
	LLVector3	mImpostorAngle;
	F32			mImpostorDistance;
	F32			mImpostorPixelArea;
	LLVector3	mLastAnimExtents[2];  
	LLVector3	mLastAnimBasePos;
	
	LLCachedControl<bool> mRenderUnloadedAvatar;

	//--------------------------------------------------------------------
	// Wind rippling in clothes
	//--------------------------------------------------------------------
public:
	LLVector4	mWindVec;
	F32			mRipplePhase;
	BOOL		mBelowWater;
private:
	F32			mWindFreq;
	LLFrameTimer mRippleTimer;
	F32			mRippleTimeLast;
	LLVector3	mRippleAccel;
	LLVector3	mLastVel;

	//--------------------------------------------------------------------
	// Culling
	//--------------------------------------------------------------------
public:
	static void	cullAvatarsByPixelArea();
	BOOL		isCulled() const { return mCulled; }
private:
	BOOL		mCulled;

	//--------------------------------------------------------------------
	// Freeze counter
	//--------------------------------------------------------------------
public:
	static void updateFreezeCounter(S32 counter = 0);
private:
	static S32  sFreezeCounter;

	//--------------------------------------------------------------------
	// Constants
	//--------------------------------------------------------------------
public:
	virtual LLViewerTexture::EBoostLevel 	getAvatarBoostLevel() const { return LLGLTexture::BOOST_AVATAR; }
	virtual LLViewerTexture::EBoostLevel 	getAvatarBakedBoostLevel() const { return LLGLTexture::BOOST_AVATAR_BAKED; }
	virtual S32 						getTexImageSize() const;
	S32						getTexImageArea() const { return getTexImageSize()*getTexImageSize(); }

/**                    Rendering
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    TEXTURES
 **/

	//--------------------------------------------------------------------
	// Loading status
	//--------------------------------------------------------------------
public:
	virtual BOOL    isTextureDefined(LLAvatarAppearanceDefines::ETextureIndex type, U32 index = 0) const override;
	virtual BOOL	isTextureVisible(LLAvatarAppearanceDefines::ETextureIndex type, U32 index = 0) const;
	virtual BOOL	isTextureVisible(LLAvatarAppearanceDefines::ETextureIndex type, LLViewerWearable *wearable) const;

	BOOL			isFullyBaked();
	static BOOL		areAllNearbyInstancesBaked(S32& grey_avatars);
	static void		getNearbyRezzedStats(std::vector<S32>& counts);
	static std::string rezStatusToString(S32 status);

	//--------------------------------------------------------------------
	// Baked textures
	//--------------------------------------------------------------------
public:
	/*virtual*/ LLTexLayerSet*	createTexLayerSet() override; // Return LLViewerTexLayerSet
	void			releaseComponentTextures(); // ! BACKWARDS COMPATIBILITY !

protected:
	static void		onBakedTextureMasksLoaded(BOOL success, LLViewerFetchedTexture *src_vi, LLImageRaw* src, LLImageRaw* aux_src, S32 discard_level, BOOL final, void* userdata);
	static void		onInitialBakedTextureLoaded(BOOL success, LLViewerFetchedTexture *src_vi, LLImageRaw* src, LLImageRaw* aux_src, S32 discard_level, BOOL final, void* userdata);
	static void		onBakedTextureLoaded(BOOL success, LLViewerFetchedTexture *src_vi, LLImageRaw* src, LLImageRaw* aux_src, S32 discard_level, BOOL final, void* userdata);
	virtual void	removeMissingBakedTextures();
	void			useBakedTexture(const LLUUID& id);
	LLViewerTexLayerSet*  getTexLayerSet(const U32 index) const { return dynamic_cast<LLViewerTexLayerSet*>(mBakedTextureDatas[index].mTexLayerSet);	}


	LLLoadedCallbackEntry::source_callback_list_t mCallbackTextureList ; 
	BOOL mLoadedCallbacksPaused;
	S32 mLoadedCallbackTextures; // count of 'loaded' baked textures, filled from mCallbackTextureList
	LLFrameTimer mLastTexCallbackAddedTime;
	std::set<LLUUID>	mTextureIDs;
	//--------------------------------------------------------------------
	// Local Textures
	//--------------------------------------------------------------------
protected:
	virtual void	setLocalTexture(LLAvatarAppearanceDefines::ETextureIndex type, LLViewerTexture* tex, BOOL baked_version_exits, U32 index = 0);
	virtual void	addLocalTextureStats(LLAvatarAppearanceDefines::ETextureIndex type, LLViewerFetchedTexture* imagep, F32 texel_area_ratio, BOOL rendered, BOOL covered_by_baked);
	// MULTI-WEARABLE: make self-only?
	virtual void	setBakedReady(LLAvatarAppearanceDefines::ETextureIndex type, BOOL baked_version_exists, U32 index = 0);

	//--------------------------------------------------------------------
	// Texture accessors
	//--------------------------------------------------------------------
private:
	virtual	void				setImage(const U8 te, LLViewerTexture *imagep, const U32 index); 
	virtual LLViewerTexture*	getImage(const U8 te, const U32 index) const;
	const std::string 			getImageURL(const U8 te, const LLUUID &uuid);

	virtual const LLTextureEntry* getTexEntry(const U8 te_num) const;
	virtual void setTexEntry(const U8 index, const LLTextureEntry &te);

	void checkTextureLoading() ;
	//--------------------------------------------------------------------
	// Layers
	//--------------------------------------------------------------------
protected:
	void			deleteLayerSetCaches(bool clearAll = true);
	void			addBakedTextureStats(LLViewerFetchedTexture* imagep, F32 pixel_area, F32 texel_area_ratio, S32 boost_level);

	//--------------------------------------------------------------------
	// Composites
	//--------------------------------------------------------------------
public:
	void	invalidateComposite(LLTexLayerSet* layerset, bool upload_result) override;
	virtual void	invalidateAll();
	virtual void	setCompositeUpdatesEnabled(bool b) {}
	virtual void 	setCompositeUpdatesEnabled(U32 index, bool b) {}
	virtual bool 	isCompositeUpdateEnabled(U32 index) { return false; }

	//--------------------------------------------------------------------
	// Static texture/mesh/baked dictionary
	//--------------------------------------------------------------------
public:
	static BOOL 	isIndexLocalTexture(LLAvatarAppearanceDefines::ETextureIndex i);
	static BOOL 	isIndexBakedTexture(LLAvatarAppearanceDefines::ETextureIndex i);

	//--------------------------------------------------------------------
	// Messaging
	//--------------------------------------------------------------------
public:
	void 			onFirstTEMessageReceived();
private:
	BOOL			mFirstTEMessageReceived;
	BOOL			mFirstAppearanceMessageReceived;
	
/**                    Textures
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    MESHES
 **/

public:
	void			debugColorizeSubMeshes(U32 i, const LLColor4& color);
	void 	updateMeshTextures() final override;
	void 			updateSexDependentLayerSets(bool upload_bake);
	void	dirtyMesh() final override; // Dirty the avatar mesh
	void 			updateMeshData();
	void			updateMeshVisibility();
	LLViewerTexture*		getBakedTexture(const U8 te);

protected:
	void 			releaseMeshData();
	virtual void restoreMeshData();
private:
	void	dirtyMesh(S32 priority) final override; // Dirty the avatar mesh, with priority
	LLViewerJoint*	getViewerJoint(S32 idx);
	S32 			mDirtyMesh; // 0 -- not dirty, 1 -- morphed, 2 -- LOD
	BOOL			mMeshTexturesDirty;

	//--------------------------------------------------------------------
	// Destroy invisible mesh
	//--------------------------------------------------------------------
protected:
	BOOL			mMeshValid;
	LLFrameTimer	mMeshInvisibleTime;

/**                    Meshes
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    APPEARANCE
 **/

    LLPointer<LLAppearanceMessageContents> 	mLastProcessedAppearance;
    
public:
	void 			parseAppearanceMessage(LLMessageSystem* mesgsys, LLAppearanceMessageContents& msg);
	void 			processAvatarAppearance(LLMessageSystem* mesgsys);
    void            applyParsedAppearanceMessage(LLAppearanceMessageContents& contents, bool slam_params);
	void 			hideSkirt();
	void			startAppearanceAnimation();
	/*virtual*/ void bodySizeChanged() override;
	
	//--------------------------------------------------------------------
	// Appearance morphing
	//--------------------------------------------------------------------
public:
	BOOL			getIsAppearanceAnimating() const { return mAppearanceAnimating; }

	// True if we are computing our appearance via local compositing
	// instead of baked textures, as for example during wearable
	// editing or when waiting for a subsequent server rebake.
	/*virtual*/ BOOL	isUsingLocalAppearance() const override { return mUseLocalAppearance; }

	BOOL				isUsingServerBakes() const override;
	void 				setIsUsingServerBakes(BOOL newval);

	// True if we are currently in appearance editing mode. Often but
	// not always the same as isUsingLocalAppearance().
	/*virtual*/ BOOL	isEditingAppearance() const override { return mIsEditingAppearance; }

	// FIXME review isUsingLocalAppearance uses, some should be isEditing instead.

private:
	BOOL			mAppearanceAnimating;
	LLFrameTimer	mAppearanceMorphTimer;
	F32				mLastAppearanceBlendTime;
	BOOL			mIsEditingAppearance; // flag for if we're actively in appearance editing mode
	BOOL			mUseLocalAppearance; // flag for if we're using a local composite
	BOOL			mUseServerBakes; // flag for if baked textures should be fetched from baking service (false if they're temporary uploads)

	//--------------------------------------------------------------------
	// Visibility
	//--------------------------------------------------------------------
public:
	BOOL			isVisible() const;
    virtual bool    shouldRenderRigged() const;
	void			setVisibilityRank(U32 rank);
    U32				getVisibilityRank() const { return mVisibilityRank; }
	static S32 		sNumVisibleAvatars; // Number of instances of this class
/**                    Appearance
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    WEARABLES
 **/

	//--------------------------------------------------------------------
	// Attachments
	//--------------------------------------------------------------------
public:
	void 				clampAttachmentPositions();
	virtual const LLViewerJointAttachment* attachObject(LLViewerObject *viewer_object);
	virtual BOOL 		detachObject(LLViewerObject *viewer_object);
	static bool		    getRiggedMeshID( LLViewerObject* pVO, LLUUID& mesh_id );
	void				cleanupAttachedMesh( LLViewerObject* pVO );
	static LLVOAvatar*  findAvatarFromAttachment(LLViewerObject* obj);
	/*virtual*/ BOOL	isWearingWearableType(LLWearableType::EType type ) const override;
	LLViewerObject *	findAttachmentByID( const LLUUID & target_id ) const;
	LLViewerJointAttachment* getTargetAttachmentPoint(LLViewerObject* viewer_object);
// [SL:KB] - Patch: Appearance-RefreshAttachments | Checked: Catznip-5.3
	void				rebuildAttachments();
// [/SL:KB]

protected:
	void 				lazyAttach();
	void				rebuildRiggedAttachments( void );

	//--------------------------------------------------------------------
	// Map of attachment points, by ID
	//--------------------------------------------------------------------
public:
	S32 				getAttachmentCount(); // Warning: order(N) not order(1) // currently used only by -self
	typedef LLSortedVector<S32, LLViewerJointAttachment*> attachment_map_t;
	attachment_map_t 								mAttachmentPoints;
	std::vector<LLPointer<LLViewerObject> > 		mPendingAttachment;
	std::vector<std::pair<LLViewerObject*,LLViewerJointAttachment*> >	mAttachedObjectsVector;	//A vector of all current attachments for fast iteration.

	//--------------------------------------------------------------------
	// HUD functions
	//--------------------------------------------------------------------
public:
	BOOL 				hasHUDAttachment() const;
	LLBBox 				getHUDBBox() const;
	void 				resetHUDAttachments();
	S32					getMaxAttachments() const;
	BOOL				canAttachMoreObjects(U32 n=1) const;
    S32					getMaxAnimatedObjectAttachments() const;
    BOOL				canAttachMoreAnimatedObjects(U32 n=1) const;
protected:
	U32					getNumAttachments() const; // O(N), not O(1)
	U32					getNumAnimatedObjectAttachments() const; // O(N), not O(1)

/**                    Wearables
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    ACTIONS
 **/

	//--------------------------------------------------------------------
	// Animations
	//--------------------------------------------------------------------
public:
	BOOL 			isAnyAnimationSignaled(const LLUUID *anim_array, const S32 num_anims) const;
	void 			processAnimationStateChanges();
protected:
	BOOL 			processSingleAnimationStateChange(const LLUUID &anim_id, BOOL start);
	void 			resetAnimations();
private:
	LLTimer			mAnimTimer;
	F32				mTimeLast;	

	//--------------------------------------------------------------------
	// Animation state data
	//--------------------------------------------------------------------
public:
	typedef std::map<LLUUID, S32>::iterator AnimIterator;
	std::map<LLUUID, S32> 					mSignaledAnimations; // requested state of Animation name/value
	std::map<LLUUID, S32> 					mPlayingAnimations; // current state of Animation name/value

	typedef std::multimap<LLUUID, LLUUID> 	AnimationSourceMap;
	typedef AnimationSourceMap::iterator 	AnimSourceIterator;
	AnimationSourceMap 						mAnimationSources; // object ids that triggered anim ids

	//--------------------------------------------------------------------
	// Chat
	//--------------------------------------------------------------------
public:
	void			addChat(const LLChat& chat);
	void	   		clearChat();
	void	   		startTyping() { mTyping = TRUE; mTypingTimer.reset(); }
	void			stopTyping() { mTyping = FALSE; }
private:
	bool			mVisibleChat;

	//--------------------------------------------------------------------
	// Lip synch morphs
	//--------------------------------------------------------------------
private:
	bool 		   	mLipSyncActive; // we're morphing for lip sync
	LLVisualParam* 	mOohMorph; // cached pointers morphs for lip sync
	LLVisualParam* 	mAahMorph; // cached pointers morphs for lip sync

	//--------------------------------------------------------------------
	// Flight
	//--------------------------------------------------------------------
public:
	BOOL			mInAir;
	LLFrameTimer	mTimeInAir;

/**                    Actions
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    PHYSICS
 **/

private:
	F32 		mSpeedAccum; // measures speed (for diagnostics mostly).
	BOOL 		mTurning; // controls hysteresis on avatar rotation
	F32			mSpeed; // misc. animation repeated state

	//--------------------------------------------------------------------
	// Dimensions
	//--------------------------------------------------------------------
public:
	void 		resolveHeightGlobal(const LLVector3d &inPos, LLVector3d &outPos, LLVector3 &outNorm);
	bool		distanceToGround( const LLVector3d &startPoint, LLVector3d &collisionPoint, F32 distToIntersectionAlongRay );
	void 		resolveHeightAgent(const LLVector3 &inPos, LLVector3 &outPos, LLVector3 &outNorm);
	void 		resolveRayCollisionAgent(const LLVector3d start_pt, const LLVector3d end_pt, LLVector3d &out_pos, LLVector3 &out_norm);
	void 		slamPosition(); // Slam position to transmitted position (for teleport);
protected:

	//--------------------------------------------------------------------
	// Material being stepped on
	//--------------------------------------------------------------------
private:
	BOOL		mStepOnLand;
	U8			mStepMaterial;
	LLVector3	mStepObjectVelocity;

/**                    Physics
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    HIERARCHY
 **/

public:
	/*virtual*/ BOOL 	setParent(LLViewerObject* parent) override;
	/*virtual*/ void 	addChild(LLViewerObject *childp) override;
	/*virtual*/ void 	removeChild(LLViewerObject *childp) override;

	//--------------------------------------------------------------------
	// Sitting
	//--------------------------------------------------------------------
public:
	void			sitDown(BOOL bSitting);
	BOOL			isSitting(){return mIsSitting;}
	void 			sitOnObject(LLViewerObject *sit_object);
	void 			getOffObject();
private:
	// set this property only with LLVOAvatar::sitDown method
	BOOL 			mIsSitting;
	// position backup in case of missing data
	LLVector3		mLastRootPos;

/**                    Hierarchy
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    NAME
 **/

public:
	virtual std::string	getFullname() const; // Returns "FirstName LastName"
	std::string		avString() const; // Frequently used string in log messages "Avatar '<full name'"
protected:
	static void		getAnimLabels(std::vector<std::string>* labels);
	static void		getAnimNames(std::vector<std::string>* names);	
private:
    bool            mNameIsSet;
	std::string  	mTitle;
	bool	  		mNameAway;
	bool	  		mNameDoNotDisturb;
	bool	  		mNameMute;
	bool      		mNameAppearance;
	bool			mNameFriend;
	bool			mNameCloud;
	F32				mNameAlpha;
	BOOL      		mRenderGroupTitles;

	//--------------------------------------------------------------------
	// Display the name (then optionally fade it out)
	//--------------------------------------------------------------------
public:
	LLFrameTimer	mChatTimer;
	LLPointer<LLHUDNameTag> mNameText;
private:
	LLFrameTimer	mTimeVisible;
	std::deque<LLChat> mChats;
	BOOL			mTyping;
	bool			mTypingLast;
	LLFrameTimer	mTypingTimer;

/**                    Name
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    SOUNDS
 **/

	//--------------------------------------------------------------------
	// Voice visualizer
	//--------------------------------------------------------------------
public:
	// Responsible for detecting the user's voice signal (and when the
	// user speaks, it puts a voice symbol over the avatar's head) and gesticulations
	LLPointer<LLVoiceVisualizer>  mVoiceVisualizer;
	int					mCurrentGesticulationLevel;

	//--------------------------------------------------------------------
	// Step sound
	//--------------------------------------------------------------------
protected:
	const LLUUID& 		getStepSound() const;
private:
	// Global table of sound ids per material, and the ground
	const static LLUUID	sStepSounds[LL_MCODE_END];
	const static LLUUID	sStepSoundOnLand;

	//--------------------------------------------------------------------
	// Foot step state (for generating sounds)
	//--------------------------------------------------------------------
public:
	void 				setFootPlane(const LLVector4 &plane) { mFootPlane = plane; }
	LLVector4			mFootPlane;
private:
	BOOL				mWasOnGroundLeft;
	BOOL				mWasOnGroundRight;

/**                    Sounds
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    DIAGNOSTICS
 **/
	
	//--------------------------------------------------------------------
	// General
	//--------------------------------------------------------------------
public:
    void                getSortedJointNames(S32 joint_type, std::vector<std::string>& result) const;
	void				dumpArchetypeXML(const std::string& prefix, bool group_by_wearables = false);
	void 				dumpAppearanceMsgParams( const std::string& dump_prefix,
												 const LLAppearanceMessageContents& contents);
	static void			dumpBakedStatus();
	const std::string 	getBakedStatusForPrintout() const;
	void				dumpAvatarTEs(const std::string& context) const;

	static F32 			sUnbakedTime; // Total seconds with >=1 unbaked avatars
	static F32 			sUnbakedUpdateTime; // Last time stats were updated (to prevent multiple updates per frame) 
	static F32 			sGreyTime; // Total seconds with >=1 grey avatars	
	static F32 			sGreyUpdateTime; // Last time stats were updated (to prevent multiple updates per frame) 
protected:
	S32					getUnbakedPixelAreaRank();
	BOOL				mHasGrey;
private:
	F32					mMinPixelArea;
	F32					mMaxPixelArea;
	F32					mAdjustedPixelArea;
	std::string  		mDebugText;
	std::string			mBakedTextureDebugText;


	//--------------------------------------------------------------------
	// Avatar Rez Metrics
	//--------------------------------------------------------------------
public:
	void 			debugAvatarRezTime(std::string notification_name, std::string comment = "");
	F32				debugGetExistenceTimeElapsedF32() const { return mDebugExistenceTimer.getElapsedTimeF32(); }

protected:
	LLFrameTimer	mRuthDebugTimer; // For tracking how long it takes for av to rez
	LLFrameTimer	mDebugExistenceTimer; // Debugging for how long the avatar has been in memory.
	LLFrameTimer	mLastAppearanceMessageTimer; // Time since last appearance message received.

	//--------------------------------------------------------------------
	// COF monitoring
	//--------------------------------------------------------------------

public:
	// COF version of last viewer-initiated appearance update request. For non-self avs, this will remain at default.
	S32 mLastUpdateRequestCOFVersion;

	// COF version of last appearance message received for this av.
	S32 mLastUpdateReceivedCOFVersion;

/**                    Diagnostics
 **                                                                            **
 *******************************************************************************/

/********************************************************************************
 **                                                                            **
 **                    SUPPORT CLASSES
 **/

protected: // Shared with LLVOAvatarSelf


/**                    Support classes
 **                                                                            **
 *******************************************************************************/

}; // LLVOAvatar
extern const F32 SELF_ADDITIONAL_PRI;
extern const S32 MAX_TEXTURE_VIRTUAL_SIZE_RESET_INTERVAL;

extern const F32 MAX_HOVER_Z;
extern const F32 MIN_HOVER_Z;

std::string get_sequential_numbered_file_name(const std::string& prefix,
											  const std::string& suffix);
void dump_sequential_xml(const std::string outprefix, const LLSD& content);
void dump_visual_param(apr_file_t* file, LLVisualParam* viewer_param, F32 value);

#endif // LL_VOAVATAR_H

