4 files changed, 1919 insertions, 1911 deletions
diff --git a/indra/newview/llphysicsshapebuilderutil.cpp b/indra/newview/llphysicsshapebuilderutil.cpp
index 54d54bfcb9..5bfe5c9941 100644
--- a/indra/newview/llphysicsshapebuilderutil.cpp
+++ b/indra/newview/llphysicsshapebuilderutil.cpp
@@ -1,24 +1,28 @@
 /** 
-* @file		llphysicsshapebuilder.cpp
-* @brief	Generic system to convert LL(Physics)VolumeParams to physics shapes
-* @author	falcon@lindenlab.com
-*
-* $LicenseInfo:firstyear=2010&license=internal$
-* 
-* Copyright (c) 2010, Linden Research, Inc.
-* 
-* The following source code is PROPRIETARY AND CONFIDENTIAL. Use of
-* this source code is governed by the Linden Lab Source Code Disclosure
-* Agreement ("Agreement") previously entered between you and Linden
-* Lab. By accessing, using, copying, modifying or distributing this
-* software, you acknowledge that you have been informed of your
-* obligations under the Agreement and agree to abide by those obligations.
-* 
-* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
-* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
-* COMPLETENESS OR PERFORMANCE.
-* $/LicenseInfo$
-*/
+ * @file llphysicsshapebuilder.cpp
+ * @brief Generic system to convert LL(Physics)VolumeParams to physics shapes
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
 
 #include "llviewerprecompiledheaders.h"
 
diff --git a/indra/newview/llphysicsshapebuilderutil.h b/indra/newview/llphysicsshapebuilderutil.h
index 3de9afcb25..7dedfb05e2 100644
--- a/indra/newview/llphysicsshapebuilderutil.h
+++ b/indra/newview/llphysicsshapebuilderutil.h
@@ -1,22 +1,26 @@
 /** 
  * @file llphysicsshapebuilder.h
- * @author falcon@lindenlab.com
  * @brief Generic system to convert LL(Physics)VolumeParams to physics shapes
  *
- * $LicenseInfo:firstyear=2010&license=internal$
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
  * 
- * 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.
  * 
- * The following source code is PROPRIETARY AND CONFIDENTIAL. Use of
- * this source code is governed by the Linden Lab Source Code Disclosure
- * Agreement ("Agreement") previously entered between you and Linden
- * Lab. By accessing, using, copying, modifying or distributing this
- * software, you acknowledge that you have been informed of your
- * obligations under the Agreement and agree to abide by those obligations.
+ * 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.
  * 
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
+ * 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
  * $/LicenseInfo$
  */
 
@@ -42,39 +46,39 @@ const F32 SHAPE_BUILDER_ENTRY_SNAP_PARAMETER_BIN_SIZE = 0.010f;
 const F32 SHAPE_BUILDER_CONVEXIFICATION_SIZE = 2.f * COLLISION_TOLERANCE;
 const F32 SHAPE_BUILDER_MIN_GEOMETRY_SIZE = 0.5f * COLLISION_TOLERANCE;
 
-class LLPhysicsVolumeParams : public LLVolumeParams
-{
-public:
-
-	LLPhysicsVolumeParams( const LLVolumeParams& params, bool forceConvex ) : 
-		LLVolumeParams( params ),
-		mForceConvex(forceConvex) {}
-
-	bool operator==(const LLPhysicsVolumeParams &params) const
-	{
-		return ( LLVolumeParams::operator==(params) && (mForceConvex == params.mForceConvex) );
-	}
-
-	bool operator!=(const LLPhysicsVolumeParams &params) const
-	{
-		return !operator==(params);
-	}
-
-	bool operator<(const LLPhysicsVolumeParams &params) const
-	{
-		if ( LLVolumeParams::operator!=(params) )
-		{
-			return LLVolumeParams::operator<(params);
-		}
-		return (params.mForceConvex == false) && (mForceConvex == true);	
-	}
-
-	bool shouldForceConvex() const { return mForceConvex; }
-
-private:
-	bool mForceConvex;
-};
-
+class LLPhysicsVolumeParams : public LLVolumeParams
+{
+public:
+
+	LLPhysicsVolumeParams( const LLVolumeParams& params, bool forceConvex ) : 
+		LLVolumeParams( params ),
+		mForceConvex(forceConvex) {}
+
+	bool operator==(const LLPhysicsVolumeParams &params) const
+	{
+		return ( LLVolumeParams::operator==(params) && (mForceConvex == params.mForceConvex) );
+	}
+
+	bool operator!=(const LLPhysicsVolumeParams &params) const
+	{
+		return !operator==(params);
+	}
+
+	bool operator<(const LLPhysicsVolumeParams &params) const
+	{
+		if ( LLVolumeParams::operator!=(params) )
+		{
+			return LLVolumeParams::operator<(params);
+		}
+		return (params.mForceConvex == false) && (mForceConvex == true);	
+	}
+
+	bool shouldForceConvex() const { return mForceConvex; }
+
+private:
+	bool mForceConvex;
+};
+
 
 class LLPhysicsShapeBuilderUtil
 {
diff --git a/indra/newview/llvoavatar.h b/indra/newview/llvoavatar.h
index fdf4f5bdaa..295799fd24 100644
--- a/indra/newview/llvoavatar.h
+++ b/indra/newview/llvoavatar.h
@@ -1,1090 +1,1090 @@
-/**
- * @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_LLVOAVATAR_H
-#define LL_LLVOAVATAR_H
-
-#include <map>
-#include <deque>
-#include <string>
-#include <vector>
-
-#include <boost/signals2.hpp>
-
-#include "imageids.h"			// IMG_INVISIBLE
-#include "llchat.h"
-#include "lldrawpoolalpha.h"
-#include "llviewerobject.h"
-#include "llcharacter.h"
-#include "llviewerjointmesh.h"
-#include "llviewerjointattachment.h"
-#include "llrendertarget.h"
-#include "llvoavatardefines.h"
-#include "lltexglobalcolor.h"
-#include "lldriverparam.h"
-#include "material_codes.h"		// LL_MCODE_END
-
-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 LLTexLayerSet;
-class LLVoiceVisualizer;
-class LLHUDNameTag;
-class LLHUDEffectSpiral;
-class LLTexGlobalColor;
-class LLVOAvatarBoneInfo;
-class LLVOAvatarSkeletonInfo;
-
-//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-// LLVOAvatar
-// 
-//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-class LLVOAvatar :
-	public LLViewerObject,
-	public LLCharacter,
-	public boost::signals2::trackable
-{
-public:
-	friend class LLVOAvatarSelf;
-protected:
-	struct LLVOAvatarXmlInfo;
-	struct LLMaskedMorph;
-
-/********************************************************************************
- **                                                                            **
- **                    INITIALIZATION
- **/
-
-public:
-	LLVOAvatar(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
-	virtual void		markDead();
-	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.
-	virtual void 		initInstance(); // Called after construction to initialize the class.
-protected:
-	virtual				~LLVOAvatar();
-	BOOL				loadSkeletonNode();
-	BOOL				loadMeshNodes();
-	virtual BOOL		loadLayersets();
-
-/**                    Initialization
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    INHERITED
- **/
-
-	//--------------------------------------------------------------------
-	// LLViewerObject interface and related
-	//--------------------------------------------------------------------
-public:
-	virtual void			updateGL();
-	virtual	LLVOAvatar*		asAvatar();
-	virtual U32    	 	 	processUpdateMessage(LLMessageSystem *mesgsys,
-													 void **user_data,
-													 U32 block_num,
-													 const EObjectUpdateType update_type,
-													 LLDataPacker *dp);
-	virtual BOOL   	 	 	idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time);
-	virtual BOOL   	 	 	updateLOD();
-	BOOL  	 	 	 	 	updateJointLODs();
-	void					updateLODRiggedAttachments( void );
-	virtual BOOL   	 	 	isActive() const; // Whether this object needs to do an idleUpdate.
-	virtual void   	 	 	updateTextures();
-	virtual S32    	 	 	setTETexture(const U8 te, const LLUUID& uuid); // If setting a baked texture, need to request it from a non-local sim.
-	virtual void   	 	 	onShift(const LLVector4a& shift_vector);
-	virtual U32    	 	 	getPartitionType() const;
-	virtual const  	 	 	LLVector3 getRenderPosition() const;
-	virtual void   	 	 	updateDrawable(BOOL force_damped);
-	virtual LLDrawable* 	createDrawable(LLPipeline *pipeline);
-	virtual BOOL   	 	 	updateGeometry(LLDrawable *drawable);
-	virtual void   	 	 	setPixelAreaAndAngle(LLAgent &agent);
-	virtual void   	 	 	updateRegion(LLViewerRegion *regionp);
-	virtual void   	 	 	updateSpatialExtents(LLVector4a& newMin, LLVector4a &newMax);
-	virtual void   	 	 	getSpatialExtents(LLVector4a& newMin, LLVector4a& newMax);
-	virtual BOOL   	 	 	lineSegmentIntersect(const LLVector3& start, const LLVector3& end,
-												 S32 face = -1,                    // which face to check, -1 = ALL_SIDES
-												 BOOL pick_transparent = FALSE,
-												 S32* face_hit = NULL,             // which face was hit
-												 LLVector3* intersection = NULL,   // return the intersection point
-												 LLVector2* tex_coord = NULL,      // return the texture coordinates of the intersection point
-												 LLVector3* normal = NULL,         // return the surface normal at the intersection point
-												 LLVector3* bi_normal = NULL);     // return the surface bi-normal at the intersection point
-
-	//--------------------------------------------------------------------
-	// LLCharacter interface and related
-	//--------------------------------------------------------------------
-public:
-	virtual LLVector3    	getCharacterPosition();
-	virtual LLQuaternion 	getCharacterRotation();
-	virtual LLVector3    	getCharacterVelocity();
-	virtual LLVector3    	getCharacterAngularVelocity();
-	virtual LLJoint*		getCharacterJoint(U32 num);
-	virtual BOOL			allocateCharacterJoints(U32 num);
-
-	virtual LLUUID			remapMotionID(const LLUUID& id);
-	virtual BOOL			startMotion(const LLUUID& id, F32 time_offset = 0.f);
-	virtual BOOL			stopMotion(const LLUUID& id, BOOL stop_immediate = FALSE);
-	virtual void			stopMotionFromSource(const LLUUID& source_id);
-	virtual void			requestStopMotion(LLMotion* motion);
-	LLMotion*				findMotion(const LLUUID& id) const;
-	void					startDefaultMotions();
-	void					dumpAnimationState();
-
-	virtual LLJoint*		getJoint(const std::string &name);
-	virtual LLJoint*     	getRootJoint() { return &mRoot; }
-	
-	void					resetJointPositions( void );
-	void					resetJointPositionsToDefault( void );
-	void					resetSpecificJointPosition( const std::string& name );
-	
-	virtual const char*		getAnimationPrefix() { return "avatar"; }
-	virtual const LLUUID&   getID();
-	virtual LLVector3		getVolumePos(S32 joint_index, LLVector3& volume_offset);
-	virtual LLJoint*		findCollisionVolume(U32 volume_id);
-	virtual S32				getCollisionVolumeID(std::string &name);
-	virtual void			addDebugText(const std::string& text);
-	virtual F32          	getTimeDilation();
-	virtual void			getGround(const LLVector3 &inPos, LLVector3 &outPos, LLVector3 &outNorm);
-	virtual F32				getPixelArea() const;
-	virtual LLPolyMesh*		getHeadMesh();
-	virtual LLPolyMesh*		getUpperBodyMesh();
-	virtual LLVector3d		getPosGlobalFromAgent(const LLVector3 &position);
-	virtual LLVector3		getPosAgentFromGlobal(const LLVector3d &position);
-	virtual void			updateVisualParams();
-
-
-/**                    Inherited
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    STATE
- **/
-
-public:
-	virtual bool 	isSelf() const { return false; } // True if this avatar is for this viewer's agent
-	bool isBuilt() const { return mIsBuilt; }
-
-private: //aligned members
-	LLVector4a	mImpostorExtents[2];
-
-private:
-	BOOL			mSupportsAlphaLayers; // For backwards compatibility, TRUE for 1.23+ clients
-
-	//--------------------------------------------------------------------
-	// Updates
-	//--------------------------------------------------------------------
-public:
-	virtual BOOL 	updateCharacter(LLAgent &agent);
-	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);
-	LLVector3		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);
-	void 			idleUpdateRenderCost();
-	void 			idleUpdateBelowWater();
-
-	//--------------------------------------------------------------------
-	// Static preferences (controlled by user settings/menus)
-	//--------------------------------------------------------------------
-public:
-	static S32		sRenderName;
-	static BOOL		sRenderGroupTitles;
-	static U32		sMaxVisible; //(affected by control "RenderAvatarMaxVisible")
-	static F32		sRenderDistance; //distance at which avatars will render.
-	static BOOL		sShowAnimationDebug; // show animation debug info
-	static BOOL		sUseImpostors; //use impostors for far away avatars
-	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 visualParamWeightsAreDefault();
-protected:
-	virtual BOOL	getIsCloud();
-	BOOL			updateIsFullyLoaded();
-	BOOL			processFullyLoadedChange(bool loading);
-	void			updateRuthTimer(bool loading);
-	F32 			calcMorphAmount();
-private:
-	BOOL			mFullyLoaded;
-	BOOL			mPreviousFullyLoaded;
-	BOOL			mFullyLoadedInitialized;
-	S32				mFullyLoadedFrameCounter;
-	LLFrameTimer	mFullyLoadedTimer;
-	LLFrameTimer	mRuthTimer;
-protected:
-	LLFrameTimer    mInvisibleTimer;
-	
-/**                    State
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    SKELETON
- **/
-
-public:
-	void				updateHeadOffset();
-	F32					getPelvisToFoot() const { return mPelvisToFoot; }
-	void				setPelvisOffset( bool hasOffset, const LLVector3& translation, F32 offset ) ;
-	bool				hasPelvisOffset( void ) { return mHasPelvisOffset; }
-	void				postPelvisSetRecalc( void );
-	void				setPelvisOffset( F32 pelvixFixupAmount );
-
-	bool				mHasPelvisOffset;
-	LLVector3			mPelvisOffset;
-	F32					mLastPelvisToFoot;
-	F32					mPelvisFixup;
-	F32					mLastPelvisFixup;
-
-	LLVector3			mHeadOffset; // current head position
-	LLViewerJoint		mRoot;
-protected:
-	static BOOL			parseSkeletonFile(const std::string& filename);
-	void				buildCharacter();
-	virtual BOOL		loadAvatar();
-
-	BOOL				setupBone(const LLVOAvatarBoneInfo* info, LLViewerJoint* parent, S32 &current_volume_num, S32 &current_joint_num);
-	BOOL				buildSkeleton(const LLVOAvatarSkeletonInfo *info);
-private:
-	BOOL				mIsBuilt; // state of deferred character building
-	S32					mNumJoints;
-	LLViewerJoint*		mSkeleton;
-	
-	//--------------------------------------------------------------------
-	// Pelvis height adjustment members.
-	//--------------------------------------------------------------------
-public:
-	LLVector3			mBodySize;
-	S32					mLastSkeletonSerialNum;
-private:
-	F32					mPelvisToFoot;
-
-	//--------------------------------------------------------------------
-	// Cached pointers to well known joints
-	//--------------------------------------------------------------------
-public:
-	LLViewerJoint* 		mPelvisp;
-	LLViewerJoint* 		mTorsop;
-	LLViewerJoint* 		mChestp;
-	LLViewerJoint* 		mNeckp;
-	LLViewerJoint* 		mHeadp;
-	LLViewerJoint* 		mSkullp;
-	LLViewerJoint* 		mEyeLeftp;
-	LLViewerJoint* 		mEyeRightp;
-	LLViewerJoint* 		mHipLeftp;
-	LLViewerJoint* 		mHipRightp;
-	LLViewerJoint* 		mKneeLeftp;
-	LLViewerJoint* 		mKneeRightp;
-	LLViewerJoint* 		mAnkleLeftp;
-	LLViewerJoint* 		mAnkleRightp;
-	LLViewerJoint* 		mFootLeftp;
-	LLViewerJoint* 		mFootRightp;
-	LLViewerJoint* 		mWristLeftp;
-	LLViewerJoint* 		mWristRightp;
-
-	//--------------------------------------------------------------------
-	// XML parse tree
-	//--------------------------------------------------------------------
-private:
-	static LLXmlTree 	sXMLTree; // avatar config file
-	static LLXmlTree 	sSkeletonXMLTree; // avatar skeleton file
-
-/**                    Skeleton
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    RENDERING
- **/
-
-public:
-	U32 		renderImpostor(LLColor4U color = LLColor4U(255,255,255,255), S32 diffuse_channel = 0);
-	U32 		renderRigid();
-	U32 		renderSkinned(EAvatarRenderPass pass);
-	F32			getLastSkinTime() { return mLastSkinTime; }
-	U32			renderSkinnedAttachments();
-	U32 		renderTransparent(BOOL first_pass);
-	void 		renderCollisionVolumes();
-	static void	deleteCachedImages(bool clearAll=true);
-	static void	destroyGL();
-	static void	restoreGL();
-	BOOL 		mIsDummy; // for special views
-	S32			mSpecialRenderMode; // special lighting
-private:
-	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.
-
-	//--------------------------------------------------------------------
-	// Morph masks
-	//--------------------------------------------------------------------
-public:
-	BOOL 		morphMaskNeedsUpdate(LLVOAvatarDefines::EBakedTextureIndex index = LLVOAvatarDefines::BAKED_NUM_INDICES);
-	void 		addMaskedMorph(LLVOAvatarDefines::EBakedTextureIndex index, LLPolyMorphTarget* morph_target, BOOL invert, std::string layer);
-	void 		applyMorphMask(U8* tex_data, S32 width, S32 height, S32 num_components, LLVOAvatarDefines::EBakedTextureIndex index = LLVOAvatarDefines::BAKED_NUM_INDICES);
-
-	//--------------------------------------------------------------------
-	// Visibility
-	//--------------------------------------------------------------------
-protected:
-	void 		updateVisibility();
-private:
-	U32	 		mVisibilityRank;
-	BOOL 		mVisible;
-	
-	//--------------------------------------------------------------------
-	// Shadowing
-	//--------------------------------------------------------------------
-public:
-	void 		updateShadowFaces();
-	LLDrawable*	mShadow;
-private:
-	LLFace* 	mShadow0Facep;
-	LLFace* 	mShadow1Facep;
-	LLPointer<LLViewerTexture> mShadowImagep;
-
-	//--------------------------------------------------------------------
-	// Impostors
-	//--------------------------------------------------------------------
-public:
-	BOOL 		isImpostor() const;
-	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;
-	BOOL		mNeedsImpostorUpdate;
-private:
-	LLVector3	mImpostorOffset;
-	LLVector2	mImpostorDim;
-	BOOL		mNeedsAnimUpdate;
-	LLVector3	mImpostorAngle;
-	F32			mImpostorDistance;
-	F32			mImpostorPixelArea;
-	LLVector3	mLastAnimExtents[2];  
-
-	//--------------------------------------------------------------------
-	// 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 LLViewerTexture::BOOST_AVATAR; }
-	virtual LLViewerTexture::EBoostLevel 	getAvatarBakedBoostLevel() const { return LLViewerTexture::BOOST_AVATAR_BAKED; }
-	virtual S32 						getTexImageSize() const;
-	virtual S32 						getTexImageArea() const { return getTexImageSize()*getTexImageSize(); }
-
-/**                    Rendering
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    TEXTURES
- **/
-
-	//--------------------------------------------------------------------
-	// Loading status
-	//--------------------------------------------------------------------
-public:
-	virtual BOOL    isTextureDefined(LLVOAvatarDefines::ETextureIndex type, U32 index = 0) const;
-	virtual BOOL	isTextureVisible(LLVOAvatarDefines::ETextureIndex type, U32 index = 0) const;
-	virtual BOOL	isTextureVisible(LLVOAvatarDefines::ETextureIndex type, LLWearable *wearable) const;
-
-protected:
-	BOOL			isFullyBaked();
-	static BOOL		areAllNearbyInstancesBaked(S32& grey_avatars);
-
-	//--------------------------------------------------------------------
-	// Baked textures
-	//--------------------------------------------------------------------
-public:
-	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);
-
-	typedef std::deque<LLMaskedMorph *> 	morph_list_t;
-	struct BakedTextureData
-	{
-		LLUUID								mLastTextureIndex;
-		LLTexLayerSet* 						mTexLayerSet; // Only exists for self
-		bool								mIsLoaded;
-		bool								mIsUsed;
-		LLVOAvatarDefines::ETextureIndex 	mTextureIndex;
-		U32									mMaskTexName;
-		// Stores pointers to the joint meshes that this baked texture deals with
-		std::vector< LLViewerJointMesh * > 	mMeshes;  // std::vector<LLViewerJointMesh> mJoints[i]->mMeshParts
-		morph_list_t						mMaskedMorphs;
-	};
-	typedef std::vector<BakedTextureData> 	bakedtexturedata_vec_t;
-	bakedtexturedata_vec_t 					mBakedTextureDatas;
-	LLLoadedCallbackEntry::source_callback_list_t mCallbackTextureList ; 
-	BOOL mLoadedCallbacksPaused;
-	//--------------------------------------------------------------------
-	// Local Textures
-	//--------------------------------------------------------------------
-protected:
-	virtual void	setLocalTexture(LLVOAvatarDefines::ETextureIndex type, LLViewerTexture* tex, BOOL baked_version_exits, U32 index = 0);
-	virtual void	addLocalTextureStats(LLVOAvatarDefines::ETextureIndex type, LLViewerFetchedTexture* imagep, F32 texel_area_ratio, BOOL rendered, BOOL covered_by_baked, U32 index = 0);
-	// MULTI-WEARABLE: make self-only?
-	virtual void	setBakedReady(LLVOAvatarDefines::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;
-
-	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:
-	virtual void	invalidateComposite(LLTexLayerSet* layerset, BOOL upload_result);
-	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(LLVOAvatarDefines::ETextureIndex i);
-	static BOOL 	isIndexBakedTexture(LLVOAvatarDefines::ETextureIndex i);
-private:
-	static const LLVOAvatarDefines::LLVOAvatarDictionary *getDictionary() { return sAvatarDictionary; }
-	static LLVOAvatarDefines::LLVOAvatarDictionary* sAvatarDictionary;
-	static LLVOAvatarSkeletonInfo* 					sAvatarSkeletonInfo;
-	static LLVOAvatarXmlInfo* 						sAvatarXmlInfo;
-
-	//--------------------------------------------------------------------
-	// Messaging
-	//--------------------------------------------------------------------
-public:
-	void 			onFirstTEMessageReceived();
-private:
-	BOOL			mFirstTEMessageReceived;
-	BOOL			mFirstAppearanceMessageReceived;
-	
-/**                    Textures
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    MESHES
- **/
-
-public:
-	void 			updateMeshTextures();
-	void 			updateSexDependentLayerSets(BOOL upload_bake);
-	void 			dirtyMesh(); // Dirty the avatar mesh
-	void 			updateMeshData();
-protected:
-	void 			releaseMeshData();
-	virtual void restoreMeshData();
-private:
-	void 			dirtyMesh(S32 priority); // Dirty the avatar mesh, with priority
-	S32 			mDirtyMesh; // 0 -- not dirty, 1 -- morphed, 2 -- LOD
-	BOOL			mMeshTexturesDirty;
-
-	typedef std::multimap<std::string, LLPolyMesh*> polymesh_map_t;
-	polymesh_map_t 									mMeshes;
-	std::vector<LLViewerJoint *> 					mMeshLOD;
-
-	//--------------------------------------------------------------------
-	// Destroy invisible mesh
-	//--------------------------------------------------------------------
-protected:
-	BOOL			mMeshValid;
-	LLFrameTimer	mMeshInvisibleTime;
-
-/**                    Meshes
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    APPEARANCE
- **/
-
-public:
-	void 			processAvatarAppearance(LLMessageSystem* mesgsys);
-	void 			hideSkirt();
-	void			startAppearanceAnimation();
-	
-	//--------------------------------------------------------------------
-	// Appearance morphing
-	//--------------------------------------------------------------------
-public:
-	BOOL			getIsAppearanceAnimating() const { return mAppearanceAnimating; }
-private:
-	BOOL			mAppearanceAnimating;
-	LLFrameTimer	mAppearanceMorphTimer;
-	F32				mLastAppearanceBlendTime;
-
-	//--------------------------------------------------------------------
-	// Clothing colors (convenience functions to access visual parameters)
-	//--------------------------------------------------------------------
-public:
-	void			setClothesColor(LLVOAvatarDefines::ETextureIndex te, const LLColor4& new_color, BOOL upload_bake);
-	LLColor4		getClothesColor(LLVOAvatarDefines::ETextureIndex te);
-	static BOOL			teToColorParams(LLVOAvatarDefines::ETextureIndex te, U32 *param_name);
-
-	//--------------------------------------------------------------------
-	// Global colors
-	//--------------------------------------------------------------------
-public:
-	LLColor4		getGlobalColor(const std::string& color_name ) const;
-	void			onGlobalColorChanged(const LLTexGlobalColor* global_color, BOOL upload_bake);
-private:
-	LLTexGlobalColor* mTexSkinColor;
-	LLTexGlobalColor* mTexHairColor;
-	LLTexGlobalColor* mTexEyeColor;
-
-	//--------------------------------------------------------------------
-	// Visibility
-	//--------------------------------------------------------------------
-public:
-	BOOL			isVisible() const;
-	void			setVisibilityRank(U32 rank);
-	U32				getVisibilityRank()  const { return mVisibilityRank; } // unused
-	static S32 		sNumVisibleAvatars; // Number of instances of this class
-	static LLColor4 getDummyColor();
-/**                    Appearance
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    WEARABLES
- **/
-
-public:
-	virtual BOOL			isWearingWearableType(LLWearableType::EType type ) const;
-	
-	//--------------------------------------------------------------------
-	// Attachments
-	//--------------------------------------------------------------------
-public:
-	void 				clampAttachmentPositions();
-	virtual const LLViewerJointAttachment* attachObject(LLViewerObject *viewer_object);
-	virtual BOOL 		detachObject(LLViewerObject *viewer_object);
-	void				cleanupAttachedMesh( LLViewerObject* pVO );
-	static LLVOAvatar*  findAvatarFromAttachment(LLViewerObject* obj);
-protected:
-	LLViewerJointAttachment* getTargetAttachmentPoint(LLViewerObject* viewer_object);
-	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 std::map<S32, LLViewerJointAttachment*> attachment_map_t;
-	attachment_map_t 								mAttachmentPoints;
-	std::vector<LLPointer<LLViewerObject> > 		mPendingAttachment;
-
-	//--------------------------------------------------------------------
-	// HUD functions
-	//--------------------------------------------------------------------
-public:
-	BOOL 				hasHUDAttachment() const;
-	LLBBox 				getHUDBBox() const;
-	void 				rebuildHUD();
-	void 				resetHUDAttachments();
-	BOOL				canAttachMoreObjects() const;
-	BOOL				canAttachMoreObjects(U32 n) const;
-protected:
-	U32					getNumAttachments() 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
-
-	//--------------------------------------------------------------------
-	// Collision volumes
-	//--------------------------------------------------------------------
-public:
-  	S32			mNumCollisionVolumes;
-	LLViewerJointCollisionVolume* mCollisionVolumes;
-protected:
-	BOOL		allocateCollisionVolumes(U32 num);
-
-	//--------------------------------------------------------------------
-	// 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:
-	void 		computeBodySize();
-
-	//--------------------------------------------------------------------
-	// Material being stepped on
-	//--------------------------------------------------------------------
-private:
-	BOOL		mStepOnLand;
-	U8			mStepMaterial;
-	LLVector3	mStepObjectVelocity;
-
-/**                    Physics
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    HIERARCHY
- **/
-
-public:
-	virtual BOOL 	setParent(LLViewerObject* parent);
-	virtual void 	addChild(LLViewerObject *childp);
-	virtual void 	removeChild(LLViewerObject *childp);
-
-	//--------------------------------------------------------------------
-	// 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;
-
-/**                    Hierarchy
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    NAME
- **/
-
-public:
-	std::string		getFullname() const; // Returns "FirstName LastName"
-protected:
-	static void		getAnimLabels(LLDynamicArray<std::string>* labels);
-	static void		getAnimNames(LLDynamicArray<std::string>* names);	
-private:
-	std::string		mNameString;		// UTF-8 title + name + status
-	std::string  	mTitle;
-	bool	  		mNameAway;
-	bool	  		mNameBusy;
-	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;
-	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:
-	static void			dumpArchetypeXML(void*);
-	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;
-
-
-	//--------------------------------------------------------------------
-	// Avatar Rez Metrics
-	//--------------------------------------------------------------------
-public:
-	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.
-
-/**                    Diagnostics
- **                                                                            **
- *******************************************************************************/
-
-/********************************************************************************
- **                                                                            **
- **                    SUPPORT CLASSES
- **/
-
-protected: // Shared with LLVOAvatarSelf
-
-	struct LLVOAvatarXmlInfo
-	{
-		LLVOAvatarXmlInfo();
-		~LLVOAvatarXmlInfo();
-
-		BOOL 	parseXmlSkeletonNode(LLXmlTreeNode* root);
-		BOOL 	parseXmlMeshNodes(LLXmlTreeNode* root);
-		BOOL 	parseXmlColorNodes(LLXmlTreeNode* root);
-		BOOL 	parseXmlLayerNodes(LLXmlTreeNode* root);
-		BOOL 	parseXmlDriverNodes(LLXmlTreeNode* root);
-		BOOL	parseXmlMorphNodes(LLXmlTreeNode* root);
-
-		struct LLVOAvatarMeshInfo
-		{
-			typedef std::pair<LLPolyMorphTargetInfo*,BOOL> morph_info_pair_t;
-			typedef std::vector<morph_info_pair_t> morph_info_list_t;
-
-			LLVOAvatarMeshInfo() : mLOD(0), mMinPixelArea(.1f) {}
-			~LLVOAvatarMeshInfo()
-			{
-				morph_info_list_t::iterator iter;
-				for (iter = mPolyMorphTargetInfoList.begin(); iter != mPolyMorphTargetInfoList.end(); iter++)
-				{
-					delete iter->first;
-				}
-				mPolyMorphTargetInfoList.clear();
-			}
-
-			std::string mType;
-			S32			mLOD;
-			std::string	mMeshFileName;
-			std::string	mReferenceMeshName;
-			F32			mMinPixelArea;
-			morph_info_list_t mPolyMorphTargetInfoList;
-		};
-		typedef std::vector<LLVOAvatarMeshInfo*> mesh_info_list_t;
-		mesh_info_list_t mMeshInfoList;
-
-		typedef std::vector<LLPolySkeletalDistortionInfo*> skeletal_distortion_info_list_t;
-		skeletal_distortion_info_list_t mSkeletalDistortionInfoList;
-	
-		struct LLVOAvatarAttachmentInfo
-		{
-			LLVOAvatarAttachmentInfo()
-				: mGroup(-1), mAttachmentID(-1), mPieMenuSlice(-1), mVisibleFirstPerson(FALSE),
-				  mIsHUDAttachment(FALSE), mHasPosition(FALSE), mHasRotation(FALSE) {}
-			std::string mName;
-			std::string mJointName;
-			LLVector3 mPosition;
-			LLVector3 mRotationEuler;
-			S32 mGroup;
-			S32 mAttachmentID;
-			S32 mPieMenuSlice;
-			BOOL mVisibleFirstPerson;
-			BOOL mIsHUDAttachment;
-			BOOL mHasPosition;
-			BOOL mHasRotation;
-		};
-		typedef std::vector<LLVOAvatarAttachmentInfo*> attachment_info_list_t;
-		attachment_info_list_t mAttachmentInfoList;
-	
-		LLTexGlobalColorInfo *mTexSkinColorInfo;
-		LLTexGlobalColorInfo *mTexHairColorInfo;
-		LLTexGlobalColorInfo *mTexEyeColorInfo;
-
-		typedef std::vector<LLTexLayerSetInfo*> layer_info_list_t;
-		layer_info_list_t mLayerInfoList;
-
-		typedef std::vector<LLDriverParamInfo*> driver_info_list_t;
-		driver_info_list_t mDriverInfoList;
-
-		struct LLVOAvatarMorphInfo
-		{
-			LLVOAvatarMorphInfo()
-				: mInvert(FALSE) {}
-			std::string mName;
-			std::string mRegion;
-			std::string mLayer;
-			BOOL mInvert;
-		};
-
-		typedef std::vector<LLVOAvatarMorphInfo*> morph_info_list_t;
-		morph_info_list_t	mMorphMaskInfoList;
-	};
-
-	struct LLMaskedMorph
-	{
-		LLMaskedMorph(LLPolyMorphTarget *morph_target, BOOL invert, std::string layer) :
-			mMorphTarget(morph_target), 
-			mInvert(invert),
-			mLayer(layer)
-		{
-			morph_target->addPendingMorphMask();
-		}
-	
-		LLPolyMorphTarget	*mMorphTarget;
-		BOOL				mInvert;
-		std::string			mLayer;
-	};
-
-/**                    Support classes
- **                                                                            **
- *******************************************************************************/
-
-}; // LLVOAvatar
-extern const F32 SELF_ADDITIONAL_PRI;
-extern const S32 MAX_TEXTURE_VIRTURE_SIZE_RESET_INTERVAL;
-
-#endif // LL_VO_AVATAR_H
+/**
+ * @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_LLVOAVATAR_H
+#define LL_LLVOAVATAR_H
+
+#include <map>
+#include <deque>
+#include <string>
+#include <vector>
+
+#include <boost/signals2.hpp>
+
+#include "imageids.h"			// IMG_INVISIBLE
+#include "llchat.h"
+#include "lldrawpoolalpha.h"
+#include "llviewerobject.h"
+#include "llcharacter.h"
+#include "llviewerjointmesh.h"
+#include "llviewerjointattachment.h"
+#include "llrendertarget.h"
+#include "llvoavatardefines.h"
+#include "lltexglobalcolor.h"
+#include "lldriverparam.h"
+#include "material_codes.h"		// LL_MCODE_END
+
+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 LLTexLayerSet;
+class LLVoiceVisualizer;
+class LLHUDNameTag;
+class LLHUDEffectSpiral;
+class LLTexGlobalColor;
+class LLVOAvatarBoneInfo;
+class LLVOAvatarSkeletonInfo;
+
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+// LLVOAvatar
+// 
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+class LLVOAvatar :
+	public LLViewerObject,
+	public LLCharacter,
+	public boost::signals2::trackable
+{
+public:
+	friend class LLVOAvatarSelf;
+protected:
+	struct LLVOAvatarXmlInfo;
+	struct LLMaskedMorph;
+
+/********************************************************************************
+ **                                                                            **
+ **                    INITIALIZATION
+ **/
+
+public:
+	LLVOAvatar(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp);
+	virtual void		markDead();
+	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.
+	virtual void 		initInstance(); // Called after construction to initialize the class.
+protected:
+	virtual				~LLVOAvatar();
+	BOOL				loadSkeletonNode();
+	BOOL				loadMeshNodes();
+	virtual BOOL		loadLayersets();
+
+/**                    Initialization
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    INHERITED
+ **/
+
+	//--------------------------------------------------------------------
+	// LLViewerObject interface and related
+	//--------------------------------------------------------------------
+public:
+	virtual void			updateGL();
+	virtual	LLVOAvatar*		asAvatar();
+	virtual U32    	 	 	processUpdateMessage(LLMessageSystem *mesgsys,
+													 void **user_data,
+													 U32 block_num,
+													 const EObjectUpdateType update_type,
+													 LLDataPacker *dp);
+	virtual BOOL   	 	 	idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time);
+	virtual BOOL   	 	 	updateLOD();
+	BOOL  	 	 	 	 	updateJointLODs();
+	void					updateLODRiggedAttachments( void );
+	virtual BOOL   	 	 	isActive() const; // Whether this object needs to do an idleUpdate.
+	virtual void   	 	 	updateTextures();
+	virtual S32    	 	 	setTETexture(const U8 te, const LLUUID& uuid); // If setting a baked texture, need to request it from a non-local sim.
+	virtual void   	 	 	onShift(const LLVector4a& shift_vector);
+	virtual U32    	 	 	getPartitionType() const;
+	virtual const  	 	 	LLVector3 getRenderPosition() const;
+	virtual void   	 	 	updateDrawable(BOOL force_damped);
+	virtual LLDrawable* 	createDrawable(LLPipeline *pipeline);
+	virtual BOOL   	 	 	updateGeometry(LLDrawable *drawable);
+	virtual void   	 	 	setPixelAreaAndAngle(LLAgent &agent);
+	virtual void   	 	 	updateRegion(LLViewerRegion *regionp);
+	virtual void   	 	 	updateSpatialExtents(LLVector4a& newMin, LLVector4a &newMax);
+	virtual void   	 	 	getSpatialExtents(LLVector4a& newMin, LLVector4a& newMax);
+	virtual BOOL   	 	 	lineSegmentIntersect(const LLVector3& start, const LLVector3& end,
+												 S32 face = -1,                    // which face to check, -1 = ALL_SIDES
+												 BOOL pick_transparent = FALSE,
+												 S32* face_hit = NULL,             // which face was hit
+												 LLVector3* intersection = NULL,   // return the intersection point
+												 LLVector2* tex_coord = NULL,      // return the texture coordinates of the intersection point
+												 LLVector3* normal = NULL,         // return the surface normal at the intersection point
+												 LLVector3* bi_normal = NULL);     // return the surface bi-normal at the intersection point
+
+	//--------------------------------------------------------------------
+	// LLCharacter interface and related
+	//--------------------------------------------------------------------
+public:
+	virtual LLVector3    	getCharacterPosition();
+	virtual LLQuaternion 	getCharacterRotation();
+	virtual LLVector3    	getCharacterVelocity();
+	virtual LLVector3    	getCharacterAngularVelocity();
+	virtual LLJoint*		getCharacterJoint(U32 num);
+	virtual BOOL			allocateCharacterJoints(U32 num);
+
+	virtual LLUUID			remapMotionID(const LLUUID& id);
+	virtual BOOL			startMotion(const LLUUID& id, F32 time_offset = 0.f);
+	virtual BOOL			stopMotion(const LLUUID& id, BOOL stop_immediate = FALSE);
+	virtual void			stopMotionFromSource(const LLUUID& source_id);
+	virtual void			requestStopMotion(LLMotion* motion);
+	LLMotion*				findMotion(const LLUUID& id) const;
+	void					startDefaultMotions();
+	void					dumpAnimationState();
+
+	virtual LLJoint*		getJoint(const std::string &name);
+	virtual LLJoint*     	getRootJoint() { return &mRoot; }
+	
+	void					resetJointPositions( void );
+	void					resetJointPositionsToDefault( void );
+	void					resetSpecificJointPosition( const std::string& name );
+	
+	virtual const char*		getAnimationPrefix() { return "avatar"; }
+	virtual const LLUUID&   getID();
+	virtual LLVector3		getVolumePos(S32 joint_index, LLVector3& volume_offset);
+	virtual LLJoint*		findCollisionVolume(U32 volume_id);
+	virtual S32				getCollisionVolumeID(std::string &name);
+	virtual void			addDebugText(const std::string& text);
+	virtual F32          	getTimeDilation();
+	virtual void			getGround(const LLVector3 &inPos, LLVector3 &outPos, LLVector3 &outNorm);
+	virtual F32				getPixelArea() const;
+	virtual LLPolyMesh*		getHeadMesh();
+	virtual LLPolyMesh*		getUpperBodyMesh();
+	virtual LLVector3d		getPosGlobalFromAgent(const LLVector3 &position);
+	virtual LLVector3		getPosAgentFromGlobal(const LLVector3d &position);
+	virtual void			updateVisualParams();
+
+
+/**                    Inherited
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    STATE
+ **/
+
+public:
+	virtual bool 	isSelf() const { return false; } // True if this avatar is for this viewer's agent
+	bool isBuilt() const { return mIsBuilt; }
+
+private: //aligned members
+	LLVector4a	mImpostorExtents[2];
+
+private:
+	BOOL			mSupportsAlphaLayers; // For backwards compatibility, TRUE for 1.23+ clients
+
+	//--------------------------------------------------------------------
+	// Updates
+	//--------------------------------------------------------------------
+public:
+	virtual BOOL 	updateCharacter(LLAgent &agent);
+	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);
+	LLVector3		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);
+	void 			idleUpdateRenderCost();
+	void 			idleUpdateBelowWater();
+
+	//--------------------------------------------------------------------
+	// Static preferences (controlled by user settings/menus)
+	//--------------------------------------------------------------------
+public:
+	static S32		sRenderName;
+	static BOOL		sRenderGroupTitles;
+	static U32		sMaxVisible; //(affected by control "RenderAvatarMaxVisible")
+	static F32		sRenderDistance; //distance at which avatars will render.
+	static BOOL		sShowAnimationDebug; // show animation debug info
+	static BOOL		sUseImpostors; //use impostors for far away avatars
+	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 visualParamWeightsAreDefault();
+protected:
+	virtual BOOL	getIsCloud();
+	BOOL			updateIsFullyLoaded();
+	BOOL			processFullyLoadedChange(bool loading);
+	void			updateRuthTimer(bool loading);
+	F32 			calcMorphAmount();
+private:
+	BOOL			mFullyLoaded;
+	BOOL			mPreviousFullyLoaded;
+	BOOL			mFullyLoadedInitialized;
+	S32				mFullyLoadedFrameCounter;
+	LLFrameTimer	mFullyLoadedTimer;
+	LLFrameTimer	mRuthTimer;
+protected:
+	LLFrameTimer    mInvisibleTimer;
+	
+/**                    State
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    SKELETON
+ **/
+
+public:
+	void				updateHeadOffset();
+	F32					getPelvisToFoot() const { return mPelvisToFoot; }
+	void				setPelvisOffset( bool hasOffset, const LLVector3& translation, F32 offset ) ;
+	bool				hasPelvisOffset( void ) { return mHasPelvisOffset; }
+	void				postPelvisSetRecalc( void );
+	void				setPelvisOffset( F32 pelvixFixupAmount );
+
+	bool				mHasPelvisOffset;
+	LLVector3			mPelvisOffset;
+	F32					mLastPelvisToFoot;
+	F32					mPelvisFixup;
+	F32					mLastPelvisFixup;
+
+	LLVector3			mHeadOffset; // current head position
+	LLViewerJoint		mRoot;
+protected:
+	static BOOL			parseSkeletonFile(const std::string& filename);
+	void				buildCharacter();
+	virtual BOOL		loadAvatar();
+
+	BOOL				setupBone(const LLVOAvatarBoneInfo* info, LLViewerJoint* parent, S32 &current_volume_num, S32 &current_joint_num);
+	BOOL				buildSkeleton(const LLVOAvatarSkeletonInfo *info);
+private:
+	BOOL				mIsBuilt; // state of deferred character building
+	S32					mNumJoints;
+	LLViewerJoint*		mSkeleton;
+	
+	//--------------------------------------------------------------------
+	// Pelvis height adjustment members.
+	//--------------------------------------------------------------------
+public:
+	LLVector3			mBodySize;
+	S32					mLastSkeletonSerialNum;
+private:
+	F32					mPelvisToFoot;
+
+	//--------------------------------------------------------------------
+	// Cached pointers to well known joints
+	//--------------------------------------------------------------------
+public:
+	LLViewerJoint* 		mPelvisp;
+	LLViewerJoint* 		mTorsop;
+	LLViewerJoint* 		mChestp;
+	LLViewerJoint* 		mNeckp;
+	LLViewerJoint* 		mHeadp;
+	LLViewerJoint* 		mSkullp;
+	LLViewerJoint* 		mEyeLeftp;
+	LLViewerJoint* 		mEyeRightp;
+	LLViewerJoint* 		mHipLeftp;
+	LLViewerJoint* 		mHipRightp;
+	LLViewerJoint* 		mKneeLeftp;
+	LLViewerJoint* 		mKneeRightp;
+	LLViewerJoint* 		mAnkleLeftp;
+	LLViewerJoint* 		mAnkleRightp;
+	LLViewerJoint* 		mFootLeftp;
+	LLViewerJoint* 		mFootRightp;
+	LLViewerJoint* 		mWristLeftp;
+	LLViewerJoint* 		mWristRightp;
+
+	//--------------------------------------------------------------------
+	// XML parse tree
+	//--------------------------------------------------------------------
+private:
+	static LLXmlTree 	sXMLTree; // avatar config file
+	static LLXmlTree 	sSkeletonXMLTree; // avatar skeleton file
+
+/**                    Skeleton
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    RENDERING
+ **/
+
+public:
+	U32 		renderImpostor(LLColor4U color = LLColor4U(255,255,255,255), S32 diffuse_channel = 0);
+	U32 		renderRigid();
+	U32 		renderSkinned(EAvatarRenderPass pass);
+	F32			getLastSkinTime() { return mLastSkinTime; }
+	U32			renderSkinnedAttachments();
+	U32 		renderTransparent(BOOL first_pass);
+	void 		renderCollisionVolumes();
+	static void	deleteCachedImages(bool clearAll=true);
+	static void	destroyGL();
+	static void	restoreGL();
+	BOOL 		mIsDummy; // for special views
+	S32			mSpecialRenderMode; // special lighting
+private:
+	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.
+
+	//--------------------------------------------------------------------
+	// Morph masks
+	//--------------------------------------------------------------------
+public:
+	BOOL 		morphMaskNeedsUpdate(LLVOAvatarDefines::EBakedTextureIndex index = LLVOAvatarDefines::BAKED_NUM_INDICES);
+	void 		addMaskedMorph(LLVOAvatarDefines::EBakedTextureIndex index, LLPolyMorphTarget* morph_target, BOOL invert, std::string layer);
+	void 		applyMorphMask(U8* tex_data, S32 width, S32 height, S32 num_components, LLVOAvatarDefines::EBakedTextureIndex index = LLVOAvatarDefines::BAKED_NUM_INDICES);
+
+	//--------------------------------------------------------------------
+	// Visibility
+	//--------------------------------------------------------------------
+protected:
+	void 		updateVisibility();
+private:
+	U32	 		mVisibilityRank;
+	BOOL 		mVisible;
+	
+	//--------------------------------------------------------------------
+	// Shadowing
+	//--------------------------------------------------------------------
+public:
+	void 		updateShadowFaces();
+	LLDrawable*	mShadow;
+private:
+	LLFace* 	mShadow0Facep;
+	LLFace* 	mShadow1Facep;
+	LLPointer<LLViewerTexture> mShadowImagep;
+
+	//--------------------------------------------------------------------
+	// Impostors
+	//--------------------------------------------------------------------
+public:
+	BOOL 		isImpostor() const;
+	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;
+	BOOL		mNeedsImpostorUpdate;
+private:
+	LLVector3	mImpostorOffset;
+	LLVector2	mImpostorDim;
+	BOOL		mNeedsAnimUpdate;
+	LLVector3	mImpostorAngle;
+	F32			mImpostorDistance;
+	F32			mImpostorPixelArea;
+	LLVector3	mLastAnimExtents[2];  
+
+	//--------------------------------------------------------------------
+	// 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 LLViewerTexture::BOOST_AVATAR; }
+	virtual LLViewerTexture::EBoostLevel 	getAvatarBakedBoostLevel() const { return LLViewerTexture::BOOST_AVATAR_BAKED; }
+	virtual S32 						getTexImageSize() const;
+	virtual S32 						getTexImageArea() const { return getTexImageSize()*getTexImageSize(); }
+
+/**                    Rendering
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    TEXTURES
+ **/
+
+	//--------------------------------------------------------------------
+	// Loading status
+	//--------------------------------------------------------------------
+public:
+	virtual BOOL    isTextureDefined(LLVOAvatarDefines::ETextureIndex type, U32 index = 0) const;
+	virtual BOOL	isTextureVisible(LLVOAvatarDefines::ETextureIndex type, U32 index = 0) const;
+	virtual BOOL	isTextureVisible(LLVOAvatarDefines::ETextureIndex type, LLWearable *wearable) const;
+
+protected:
+	BOOL			isFullyBaked();
+	static BOOL		areAllNearbyInstancesBaked(S32& grey_avatars);
+
+	//--------------------------------------------------------------------
+	// Baked textures
+	//--------------------------------------------------------------------
+public:
+	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);
+
+	typedef std::deque<LLMaskedMorph *> 	morph_list_t;
+	struct BakedTextureData
+	{
+		LLUUID								mLastTextureIndex;
+		LLTexLayerSet* 						mTexLayerSet; // Only exists for self
+		bool								mIsLoaded;
+		bool								mIsUsed;
+		LLVOAvatarDefines::ETextureIndex 	mTextureIndex;
+		U32									mMaskTexName;
+		// Stores pointers to the joint meshes that this baked texture deals with
+		std::vector< LLViewerJointMesh * > 	mMeshes;  // std::vector<LLViewerJointMesh> mJoints[i]->mMeshParts
+		morph_list_t						mMaskedMorphs;
+	};
+	typedef std::vector<BakedTextureData> 	bakedtexturedata_vec_t;
+	bakedtexturedata_vec_t 					mBakedTextureDatas;
+	LLLoadedCallbackEntry::source_callback_list_t mCallbackTextureList ; 
+	BOOL mLoadedCallbacksPaused;
+	//--------------------------------------------------------------------
+	// Local Textures
+	//--------------------------------------------------------------------
+protected:
+	virtual void	setLocalTexture(LLVOAvatarDefines::ETextureIndex type, LLViewerTexture* tex, BOOL baked_version_exits, U32 index = 0);
+	virtual void	addLocalTextureStats(LLVOAvatarDefines::ETextureIndex type, LLViewerFetchedTexture* imagep, F32 texel_area_ratio, BOOL rendered, BOOL covered_by_baked, U32 index = 0);
+	// MULTI-WEARABLE: make self-only?
+	virtual void	setBakedReady(LLVOAvatarDefines::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;
+
+	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:
+	virtual void	invalidateComposite(LLTexLayerSet* layerset, BOOL upload_result);
+	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(LLVOAvatarDefines::ETextureIndex i);
+	static BOOL 	isIndexBakedTexture(LLVOAvatarDefines::ETextureIndex i);
+private:
+	static const LLVOAvatarDefines::LLVOAvatarDictionary *getDictionary() { return sAvatarDictionary; }
+	static LLVOAvatarDefines::LLVOAvatarDictionary* sAvatarDictionary;
+	static LLVOAvatarSkeletonInfo* 					sAvatarSkeletonInfo;
+	static LLVOAvatarXmlInfo* 						sAvatarXmlInfo;
+
+	//--------------------------------------------------------------------
+	// Messaging
+	//--------------------------------------------------------------------
+public:
+	void 			onFirstTEMessageReceived();
+private:
+	BOOL			mFirstTEMessageReceived;
+	BOOL			mFirstAppearanceMessageReceived;
+	
+/**                    Textures
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    MESHES
+ **/
+
+public:
+	void 			updateMeshTextures();
+	void 			updateSexDependentLayerSets(BOOL upload_bake);
+	void 			dirtyMesh(); // Dirty the avatar mesh
+	void 			updateMeshData();
+protected:
+	void 			releaseMeshData();
+	virtual void restoreMeshData();
+private:
+	void 			dirtyMesh(S32 priority); // Dirty the avatar mesh, with priority
+	S32 			mDirtyMesh; // 0 -- not dirty, 1 -- morphed, 2 -- LOD
+	BOOL			mMeshTexturesDirty;
+
+	typedef std::multimap<std::string, LLPolyMesh*> polymesh_map_t;
+	polymesh_map_t 									mMeshes;
+	std::vector<LLViewerJoint *> 					mMeshLOD;
+
+	//--------------------------------------------------------------------
+	// Destroy invisible mesh
+	//--------------------------------------------------------------------
+protected:
+	BOOL			mMeshValid;
+	LLFrameTimer	mMeshInvisibleTime;
+
+/**                    Meshes
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    APPEARANCE
+ **/
+
+public:
+	void 			processAvatarAppearance(LLMessageSystem* mesgsys);
+	void 			hideSkirt();
+	void			startAppearanceAnimation();
+	
+	//--------------------------------------------------------------------
+	// Appearance morphing
+	//--------------------------------------------------------------------
+public:
+	BOOL			getIsAppearanceAnimating() const { return mAppearanceAnimating; }
+private:
+	BOOL			mAppearanceAnimating;
+	LLFrameTimer	mAppearanceMorphTimer;
+	F32				mLastAppearanceBlendTime;
+
+	//--------------------------------------------------------------------
+	// Clothing colors (convenience functions to access visual parameters)
+	//--------------------------------------------------------------------
+public:
+	void			setClothesColor(LLVOAvatarDefines::ETextureIndex te, const LLColor4& new_color, BOOL upload_bake);
+	LLColor4		getClothesColor(LLVOAvatarDefines::ETextureIndex te);
+	static BOOL			teToColorParams(LLVOAvatarDefines::ETextureIndex te, U32 *param_name);
+
+	//--------------------------------------------------------------------
+	// Global colors
+	//--------------------------------------------------------------------
+public:
+	LLColor4		getGlobalColor(const std::string& color_name ) const;
+	void			onGlobalColorChanged(const LLTexGlobalColor* global_color, BOOL upload_bake);
+private:
+	LLTexGlobalColor* mTexSkinColor;
+	LLTexGlobalColor* mTexHairColor;
+	LLTexGlobalColor* mTexEyeColor;
+
+	//--------------------------------------------------------------------
+	// Visibility
+	//--------------------------------------------------------------------
+public:
+	BOOL			isVisible() const;
+	void			setVisibilityRank(U32 rank);
+	U32				getVisibilityRank()  const { return mVisibilityRank; } // unused
+	static S32 		sNumVisibleAvatars; // Number of instances of this class
+	static LLColor4 getDummyColor();
+/**                    Appearance
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    WEARABLES
+ **/
+
+public:
+	virtual BOOL			isWearingWearableType(LLWearableType::EType type ) const;
+	
+	//--------------------------------------------------------------------
+	// Attachments
+	//--------------------------------------------------------------------
+public:
+	void 				clampAttachmentPositions();
+	virtual const LLViewerJointAttachment* attachObject(LLViewerObject *viewer_object);
+	virtual BOOL 		detachObject(LLViewerObject *viewer_object);
+	void				cleanupAttachedMesh( LLViewerObject* pVO );
+	static LLVOAvatar*  findAvatarFromAttachment(LLViewerObject* obj);
+protected:
+	LLViewerJointAttachment* getTargetAttachmentPoint(LLViewerObject* viewer_object);
+	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 std::map<S32, LLViewerJointAttachment*> attachment_map_t;
+	attachment_map_t 								mAttachmentPoints;
+	std::vector<LLPointer<LLViewerObject> > 		mPendingAttachment;
+
+	//--------------------------------------------------------------------
+	// HUD functions
+	//--------------------------------------------------------------------
+public:
+	BOOL 				hasHUDAttachment() const;
+	LLBBox 				getHUDBBox() const;
+	void 				rebuildHUD();
+	void 				resetHUDAttachments();
+	BOOL				canAttachMoreObjects() const;
+	BOOL				canAttachMoreObjects(U32 n) const;
+protected:
+	U32					getNumAttachments() 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
+
+	//--------------------------------------------------------------------
+	// Collision volumes
+	//--------------------------------------------------------------------
+public:
+  	S32			mNumCollisionVolumes;
+	LLViewerJointCollisionVolume* mCollisionVolumes;
+protected:
+	BOOL		allocateCollisionVolumes(U32 num);
+
+	//--------------------------------------------------------------------
+	// 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:
+	void 		computeBodySize();
+
+	//--------------------------------------------------------------------
+	// Material being stepped on
+	//--------------------------------------------------------------------
+private:
+	BOOL		mStepOnLand;
+	U8			mStepMaterial;
+	LLVector3	mStepObjectVelocity;
+
+/**                    Physics
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    HIERARCHY
+ **/
+
+public:
+	virtual BOOL 	setParent(LLViewerObject* parent);
+	virtual void 	addChild(LLViewerObject *childp);
+	virtual void 	removeChild(LLViewerObject *childp);
+
+	//--------------------------------------------------------------------
+	// 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;
+
+/**                    Hierarchy
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    NAME
+ **/
+
+public:
+	std::string		getFullname() const; // Returns "FirstName LastName"
+protected:
+	static void		getAnimLabels(LLDynamicArray<std::string>* labels);
+	static void		getAnimNames(LLDynamicArray<std::string>* names);	
+private:
+	std::string		mNameString;		// UTF-8 title + name + status
+	std::string  	mTitle;
+	bool	  		mNameAway;
+	bool	  		mNameBusy;
+	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;
+	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:
+	static void			dumpArchetypeXML(void*);
+	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;
+
+
+	//--------------------------------------------------------------------
+	// Avatar Rez Metrics
+	//--------------------------------------------------------------------
+public:
+	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.
+
+/**                    Diagnostics
+ **                                                                            **
+ *******************************************************************************/
+
+/********************************************************************************
+ **                                                                            **
+ **                    SUPPORT CLASSES
+ **/
+
+protected: // Shared with LLVOAvatarSelf
+
+	struct LLVOAvatarXmlInfo
+	{
+		LLVOAvatarXmlInfo();
+		~LLVOAvatarXmlInfo();
+
+		BOOL 	parseXmlSkeletonNode(LLXmlTreeNode* root);
+		BOOL 	parseXmlMeshNodes(LLXmlTreeNode* root);
+		BOOL 	parseXmlColorNodes(LLXmlTreeNode* root);
+		BOOL 	parseXmlLayerNodes(LLXmlTreeNode* root);
+		BOOL 	parseXmlDriverNodes(LLXmlTreeNode* root);
+		BOOL	parseXmlMorphNodes(LLXmlTreeNode* root);
+
+		struct LLVOAvatarMeshInfo
+		{
+			typedef std::pair<LLPolyMorphTargetInfo*,BOOL> morph_info_pair_t;
+			typedef std::vector<morph_info_pair_t> morph_info_list_t;
+
+			LLVOAvatarMeshInfo() : mLOD(0), mMinPixelArea(.1f) {}
+			~LLVOAvatarMeshInfo()
+			{
+				morph_info_list_t::iterator iter;
+				for (iter = mPolyMorphTargetInfoList.begin(); iter != mPolyMorphTargetInfoList.end(); iter++)
+				{
+					delete iter->first;
+				}
+				mPolyMorphTargetInfoList.clear();
+			}
+
+			std::string mType;
+			S32			mLOD;
+			std::string	mMeshFileName;
+			std::string	mReferenceMeshName;
+			F32			mMinPixelArea;
+			morph_info_list_t mPolyMorphTargetInfoList;
+		};
+		typedef std::vector<LLVOAvatarMeshInfo*> mesh_info_list_t;
+		mesh_info_list_t mMeshInfoList;
+
+		typedef std::vector<LLPolySkeletalDistortionInfo*> skeletal_distortion_info_list_t;
+		skeletal_distortion_info_list_t mSkeletalDistortionInfoList;
+	
+		struct LLVOAvatarAttachmentInfo
+		{
+			LLVOAvatarAttachmentInfo()
+				: mGroup(-1), mAttachmentID(-1), mPieMenuSlice(-1), mVisibleFirstPerson(FALSE),
+				  mIsHUDAttachment(FALSE), mHasPosition(FALSE), mHasRotation(FALSE) {}
+			std::string mName;
+			std::string mJointName;
+			LLVector3 mPosition;
+			LLVector3 mRotationEuler;
+			S32 mGroup;
+			S32 mAttachmentID;
+			S32 mPieMenuSlice;
+			BOOL mVisibleFirstPerson;
+			BOOL mIsHUDAttachment;
+			BOOL mHasPosition;
+			BOOL mHasRotation;
+		};
+		typedef std::vector<LLVOAvatarAttachmentInfo*> attachment_info_list_t;
+		attachment_info_list_t mAttachmentInfoList;
+	
+		LLTexGlobalColorInfo *mTexSkinColorInfo;
+		LLTexGlobalColorInfo *mTexHairColorInfo;
+		LLTexGlobalColorInfo *mTexEyeColorInfo;
+
+		typedef std::vector<LLTexLayerSetInfo*> layer_info_list_t;
+		layer_info_list_t mLayerInfoList;
+
+		typedef std::vector<LLDriverParamInfo*> driver_info_list_t;
+		driver_info_list_t mDriverInfoList;
+
+		struct LLVOAvatarMorphInfo
+		{
+			LLVOAvatarMorphInfo()
+				: mInvert(FALSE) {}
+			std::string mName;
+			std::string mRegion;
+			std::string mLayer;
+			BOOL mInvert;
+		};
+
+		typedef std::vector<LLVOAvatarMorphInfo*> morph_info_list_t;
+		morph_info_list_t	mMorphMaskInfoList;
+	};
+
+	struct LLMaskedMorph
+	{
+		LLMaskedMorph(LLPolyMorphTarget *morph_target, BOOL invert, std::string layer) :
+			mMorphTarget(morph_target), 
+			mInvert(invert),
+			mLayer(layer)
+		{
+			morph_target->addPendingMorphMask();
+		}
+	
+		LLPolyMorphTarget	*mMorphTarget;
+		BOOL				mInvert;
+		std::string			mLayer;
+	};
+
+/**                    Support classes
+ **                                                                            **
+ *******************************************************************************/
+
+}; // LLVOAvatar
+extern const F32 SELF_ADDITIONAL_PRI;
+extern const S32 MAX_TEXTURE_VIRTURE_SIZE_RESET_INTERVAL;
+
+#endif // LL_VO_AVATAR_H
diff --git a/indra/newview/llvocache.cpp b/indra/newview/llvocache.cpp
index 1f9be20c75..b888a263d0 100644
--- a/indra/newview/llvocache.cpp
+++ b/indra/newview/llvocache.cpp
@@ -1,756 +1,756 @@
-/** 
- * @file llvocache.cpp
- * @brief Cache of objects on the viewer.
- *
- * $LicenseInfo:firstyear=2003&license=viewerlgpl$
- * 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
- * $/LicenseInfo$
- */
-
-#include "llviewerprecompiledheaders.h"
-#include "llvocache.h"
-#include "llerror.h"
-#include "llregionhandle.h"
-#include "llviewercontrol.h"
-
-BOOL check_read(LLAPRFile* apr_file, void* src, S32 n_bytes) 
-{
-	return apr_file->read(src, n_bytes) == n_bytes ;
-}
-
-BOOL check_write(LLAPRFile* apr_file, void* src, S32 n_bytes) 
-{
-	return apr_file->write(src, n_bytes) == n_bytes ;
-}
-
-
-//---------------------------------------------------------------------------
-// LLVOCacheEntry
-//---------------------------------------------------------------------------
-
-LLVOCacheEntry::LLVOCacheEntry(U32 local_id, U32 crc, LLDataPackerBinaryBuffer &dp)
-	:
-	mLocalID(local_id),
-	mCRC(crc),
-	mHitCount(0),
-	mDupeCount(0),
-	mCRCChangeCount(0)
-{
-	mBuffer = new U8[dp.getBufferSize()];
-	mDP.assignBuffer(mBuffer, dp.getBufferSize());
-	mDP = dp;
-}
-
-LLVOCacheEntry::LLVOCacheEntry()
-	:
-	mLocalID(0),
-	mCRC(0),
-	mHitCount(0),
-	mDupeCount(0),
-	mCRCChangeCount(0),
-	mBuffer(NULL)
-{
-	mDP.assignBuffer(mBuffer, 0);
-}
-
-LLVOCacheEntry::LLVOCacheEntry(LLAPRFile* apr_file)
-	: mBuffer(NULL)
-{
-	S32 size = -1;
-	BOOL success;
-
-	success = check_read(apr_file, &mLocalID, sizeof(U32));
-	if(success)
-	{
-		success = check_read(apr_file, &mCRC, sizeof(U32));
-	}
-	if(success)
-	{
-		success = check_read(apr_file, &mHitCount, sizeof(S32));
-	}
-	if(success)
-	{
-		success = check_read(apr_file, &mDupeCount, sizeof(S32));
-	}
-	if(success)
-	{
-		success = check_read(apr_file, &mCRCChangeCount, sizeof(S32));
-	}
-	if(success)
-	{
-		success = check_read(apr_file, &size, sizeof(S32));
-
-		// Corruption in the cache entries
-		if ((size > 10000) || (size < 1))
-		{
-			// We've got a bogus size, skip reading it.
-			// We won't bother seeking, because the rest of this file
-			// is likely bogus, and will be tossed anyway.
-			llwarns << "Bogus cache entry, size " << size << ", aborting!" << llendl;
-			success = FALSE;
-		}
-	}
-	if(success && size > 0)
-	{
-		mBuffer = new U8[size];
-		success = check_read(apr_file, mBuffer, size);
-
-		if(success)
-		{
-			mDP.assignBuffer(mBuffer, size);
-		}
-		else
-		{
-			delete[] mBuffer ;
-			mBuffer = NULL ;
-		}
-	}
-
-	if(!success)
-	{
-		mLocalID = 0;
-		mCRC = 0;
-		mHitCount = 0;
-		mDupeCount = 0;
-		mCRCChangeCount = 0;
-		mBuffer = NULL;
-	}
-}
-
-LLVOCacheEntry::~LLVOCacheEntry()
-{
-	if(mBuffer)
-	{
-		delete[] mBuffer;
-	}
-}
-
-
-// New CRC means the object has changed.
-void LLVOCacheEntry::assignCRC(U32 crc, LLDataPackerBinaryBuffer &dp)
-{
-	if (  (mCRC != crc)
-		||(mDP.getBufferSize() == 0))
-	{
-		mCRC = crc;
-		mHitCount = 0;
-		mCRCChangeCount++;
-
-		mDP.freeBuffer();
-		mBuffer = new U8[dp.getBufferSize()];
-		mDP.assignBuffer(mBuffer, dp.getBufferSize());
-		mDP = dp;
-	}
-}
-
-LLDataPackerBinaryBuffer *LLVOCacheEntry::getDP(U32 crc)
-{
-	if (  (mCRC != crc)
-		||(mDP.getBufferSize() == 0))
-	{
-		//llinfos << "Not getting cache entry, invalid!" << llendl;
-		return NULL;
-	}
-	mHitCount++;
-	return &mDP;
-}
-
-
-void LLVOCacheEntry::recordHit()
-{
-	mHitCount++;
-}
-
-
-void LLVOCacheEntry::dump() const
-{
-	llinfos << "local " << mLocalID
-		<< " crc " << mCRC
-		<< " hits " << mHitCount
-		<< " dupes " << mDupeCount
-		<< " change " << mCRCChangeCount
-		<< llendl;
-}
-
-BOOL LLVOCacheEntry::writeToFile(LLAPRFile* apr_file) const
-{
-	BOOL success;
-	success = check_write(apr_file, (void*)&mLocalID, sizeof(U32));
-	if(success)
-	{
-		success = check_write(apr_file, (void*)&mCRC, sizeof(U32));
-	}
-	if(success)
-	{
-		success = check_write(apr_file, (void*)&mHitCount, sizeof(S32));
-	}
-	if(success)
-	{
-		success = check_write(apr_file, (void*)&mDupeCount, sizeof(S32));
-	}
-	if(success)
-	{
-		success = check_write(apr_file, (void*)&mCRCChangeCount, sizeof(S32));
-	}
-	if(success)
-	{
-		S32 size = mDP.getBufferSize();
-		success = check_write(apr_file, (void*)&size, sizeof(S32));
-	
-		if(success)
-		{
-			success = check_write(apr_file, (void*)mBuffer, size);
-		}
-	}
-
-	return success ;
-}
-
-//-------------------------------------------------------------------
-//LLVOCache
-//-------------------------------------------------------------------
-// Format string used to construct filename for the object cache
-static const char OBJECT_CACHE_FILENAME[] = "objects_%d_%d.slc";
-
-const U32 MAX_NUM_OBJECT_ENTRIES = 128 ;
-const U32 MIN_ENTRIES_TO_PURGE = 16 ;
-const U32 INVALID_TIME = 0 ;
-const char* object_cache_dirname = "objectcache";
-const char* header_filename = "object.cache";
-
-LLVOCache* LLVOCache::sInstance = NULL;
-
-//static 
-LLVOCache* LLVOCache::getInstance() 
-{	
-	if(!sInstance)
-	{
-		sInstance = new LLVOCache() ;
-	}
-	return sInstance ;
-}
-
-//static 
-BOOL LLVOCache::hasInstance() 
-{
-	return sInstance != NULL ;
-}
-
-//static 
-void LLVOCache::destroyClass() 
-{
-	if(sInstance)
-	{
-		delete sInstance ;
-		sInstance = NULL ;
-	}
-}
-
-LLVOCache::LLVOCache():
-	mInitialized(FALSE),
-	mReadOnly(TRUE),
-	mNumEntries(0),
-	mCacheSize(1)
-{
-	mEnabled = gSavedSettings.getBOOL("ObjectCacheEnabled");
-	mLocalAPRFilePoolp = new LLVolatileAPRPool() ;
-}
-
-LLVOCache::~LLVOCache()
-{
-	if(mEnabled)
-	{
-		writeCacheHeader();
-		clearCacheInMemory();
-	}
-	delete mLocalAPRFilePoolp;
-}
-
-void LLVOCache::setDirNames(ELLPath location)
-{
-	std::string delem = gDirUtilp->getDirDelimiter();
-
-	mHeaderFileName = gDirUtilp->getExpandedFilename(location, object_cache_dirname, header_filename);
-	mObjectCacheDirName = gDirUtilp->getExpandedFilename(location, object_cache_dirname);
-}
-
-void LLVOCache::initCache(ELLPath location, U32 size, U32 cache_version)
-{
-	if(!mEnabled)
-	{
-		llwarns << "Not initializing cache: Cache is currently disabled." << llendl;
-		return ;
-	}
-
-	if(mInitialized)
-	{
-		llwarns << "Cache already initialized." << llendl;
-		return ;
-	}
-	mInitialized = TRUE ;
-
-	setDirNames(location);
-	if (!mReadOnly)
-	{
-		LLFile::mkdir(mObjectCacheDirName);
-	}
-	mCacheSize = llclamp(size, MIN_ENTRIES_TO_PURGE, MAX_NUM_OBJECT_ENTRIES);
-	mMetaInfo.mVersion = cache_version;
-	readCacheHeader();	
-
-	if(mMetaInfo.mVersion != cache_version) 
-	{
-		mMetaInfo.mVersion = cache_version ;
-		if(mReadOnly) //disable cache
-		{
-			clearCacheInMemory();
-		}
-		else //delete the current cache if the format does not match.
-		{			
-			removeCache();
-		}
-	}	
-}
-	
-void LLVOCache::removeCache(ELLPath location) 
-{
-	if(mReadOnly)
-	{
-		llwarns << "Not removing cache at " << location << ": Cache is currently in read-only mode." << llendl;
-		return ;
-	}
-
-	llinfos << "about to remove the object cache due to settings." << llendl ;
-
-	std::string delem = gDirUtilp->getDirDelimiter();
-	std::string mask = delem + "*";
-	std::string cache_dir = gDirUtilp->getExpandedFilename(location, object_cache_dirname);
-	llinfos << "Removing cache at " << cache_dir << llendl;
-	gDirUtilp->deleteFilesInDir(cache_dir, mask); //delete all files
-	LLFile::rmdir(cache_dir);
-
-	clearCacheInMemory();
-	mInitialized = FALSE ;
-}
-
-void LLVOCache::removeCache() 
-{
-	llassert_always(mInitialized) ;
-	if(mReadOnly)
-	{
-		llwarns << "Not clearing object cache: Cache is currently in read-only mode." << llendl;
-		return ;
-	}
-
-	llinfos << "about to remove the object cache due to some error." << llendl ;
-
-	std::string delem = gDirUtilp->getDirDelimiter();
-	std::string mask = delem + "*";
-	llinfos << "Removing cache at " << mObjectCacheDirName << llendl;
-	gDirUtilp->deleteFilesInDir(mObjectCacheDirName, mask); 
-
-	clearCacheInMemory() ;
-	writeCacheHeader();
-}
-
-void LLVOCache::removeEntry(HeaderEntryInfo* entry) 
-{
-	llassert_always(mInitialized) ;
-	if(mReadOnly)
-	{
-		return ;
-	}
-	if(!entry)
-	{
-		return ;
-	}
-
-	header_entry_queue_t::iterator iter = mHeaderEntryQueue.find(entry) ;
-	if(iter != mHeaderEntryQueue.end())
-	{		
-		mHandleEntryMap.erase(entry->mHandle) ;		
-		mHeaderEntryQueue.erase(iter) ;
-		removeFromCache(entry) ;
-		delete entry ;
-
-		mNumEntries = mHandleEntryMap.size() ;
-	}
-}
-
-void LLVOCache::removeEntry(U64 handle) 
-{
-	handle_entry_map_t::iterator iter = mHandleEntryMap.find(handle) ;
-	if(iter == mHandleEntryMap.end()) //no cache
-	{
-		return ;
-	}
-	HeaderEntryInfo* entry = iter->second ;
-	removeEntry(entry) ;
-}
-
-void LLVOCache::clearCacheInMemory()
-{
-	if(!mHeaderEntryQueue.empty()) 
-	{
-		for(header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin(); iter != mHeaderEntryQueue.end(); ++iter)
-		{
-			delete *iter ;
-		}
-		mHeaderEntryQueue.clear();
-		mHandleEntryMap.clear();
-		mNumEntries = 0 ;
-	}
-
-}
-
-void LLVOCache::getObjectCacheFilename(U64 handle, std::string& filename) 
-{
-	U32 region_x, region_y;
-
-	grid_from_region_handle(handle, &region_x, &region_y);
-	filename = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, object_cache_dirname,
-			   llformat(OBJECT_CACHE_FILENAME, region_x, region_y));
-
-	return ;
-}
-
-void LLVOCache::removeFromCache(HeaderEntryInfo* entry)
-{
-	if(mReadOnly)
-	{
-		llwarns << "Not removing cache for handle " << entry->mHandle << ": Cache is currently in read-only mode." << llendl;
-		return ;
-	}
-
-	std::string filename;
-	getObjectCacheFilename(entry->mHandle, filename);
-	LLAPRFile::remove(filename, mLocalAPRFilePoolp);
-	entry->mTime = INVALID_TIME ;
-	updateEntry(entry) ; //update the head file.
-}
-
-void LLVOCache::readCacheHeader()
-{
-	if(!mEnabled)
-	{
-		llwarns << "Not reading cache header: Cache is currently disabled." << llendl;
-		return;
-	}
-
-	//clear stale info.
-	clearCacheInMemory();	
-
-	bool success = true ;
-	if (LLAPRFile::isExist(mHeaderFileName, mLocalAPRFilePoolp))
-	{
-		LLAPRFile apr_file(mHeaderFileName, APR_READ|APR_BINARY, mLocalAPRFilePoolp);		
-		
-		//read the meta element
-		success = check_read(&apr_file, &mMetaInfo, sizeof(HeaderMetaInfo)) ;
-		
-		if(success)
-		{
-			HeaderEntryInfo* entry = NULL ;
-			mNumEntries = 0 ;
-			U32 num_read = 0 ;
-			while(num_read++ < MAX_NUM_OBJECT_ENTRIES)
-			{
-				if(!entry)
-				{
-					entry = new HeaderEntryInfo() ;
-				}
-				success = check_read(&apr_file, entry, sizeof(HeaderEntryInfo));
-								
-				if(!success) //failed
-				{
-					llwarns << "Error reading cache header entry. (entry_index=" << mNumEntries << ")" << llendl;
-					delete entry ;
-					entry = NULL ;
-					break ;
-				}
-				else if(entry->mTime == INVALID_TIME)
-				{
-					continue ; //an empty entry
-				}
-
-				entry->mIndex = mNumEntries++ ;
-				mHeaderEntryQueue.insert(entry) ;
-				mHandleEntryMap[entry->mHandle] = entry ;
-				entry = NULL ;
-			}
-			if(entry)
-			{
-				delete entry ;
-			}
-		}
-
-		//---------
-		//debug code
-		//----------
-		//std::string name ;
-		//for(header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin() ; success && iter != mHeaderEntryQueue.end(); ++iter)
-		//{
-		//	getObjectCacheFilename((*iter)->mHandle, name) ;
-		//	llinfos << name << llendl ;
-		//}
-		//-----------
-	}
-	else
-	{
-		writeCacheHeader() ;
-	}
-
-	if(!success)
-	{
-		removeCache() ; //failed to read header, clear the cache
-	}
-	else if(mNumEntries >= mCacheSize)
-	{
-		purgeEntries(mCacheSize) ;
-	}
-
-	return ;
-}
-
-void LLVOCache::writeCacheHeader()
-{
-	if (!mEnabled)
-	{
-		llwarns << "Not writing cache header: Cache is currently disabled." << llendl;
-		return;
-	}
-
-	if(mReadOnly)
-	{
-		llwarns << "Not writing cache header: Cache is currently in read-only mode." << llendl;
-		return;
-	}
-
-	bool success = true ;
-	{
-		LLAPRFile apr_file(mHeaderFileName, APR_CREATE|APR_WRITE|APR_BINARY, mLocalAPRFilePoolp);
-
-		//write the meta element
-		success = check_write(&apr_file, &mMetaInfo, sizeof(HeaderMetaInfo)) ;
-
-
-		mNumEntries = 0 ;	
-		for(header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin() ; success && iter != mHeaderEntryQueue.end(); ++iter)
-		{
-			(*iter)->mIndex = mNumEntries++ ;
-			success = check_write(&apr_file, (void*)*iter, sizeof(HeaderEntryInfo));
-		}
-	
-		mNumEntries = mHeaderEntryQueue.size() ;
-		if(success && mNumEntries < MAX_NUM_OBJECT_ENTRIES)
-		{
-			HeaderEntryInfo* entry = new HeaderEntryInfo() ;
-			entry->mTime = INVALID_TIME ;
-			for(S32 i = mNumEntries ; success && i < MAX_NUM_OBJECT_ENTRIES ; i++)
-			{
-				//fill the cache with the default entry.
-				success = check_write(&apr_file, entry, sizeof(HeaderEntryInfo)) ;			
-
-			}
-			delete entry ;
-		}
-	}
-
-	if(!success)
-	{
-		clearCacheInMemory() ;
-		mReadOnly = TRUE ; //disable the cache.
-	}
-	return ;
-}
-
-BOOL LLVOCache::updateEntry(const HeaderEntryInfo* entry)
-{
-	LLAPRFile apr_file(mHeaderFileName, APR_WRITE|APR_BINARY, mLocalAPRFilePoolp);
-	apr_file.seek(APR_SET, entry->mIndex * sizeof(HeaderEntryInfo) + sizeof(HeaderMetaInfo)) ;
-
-	return check_write(&apr_file, (void*)entry, sizeof(HeaderEntryInfo)) ;
-}
-
-void LLVOCache::readFromCache(U64 handle, const LLUUID& id, LLVOCacheEntry::vocache_entry_map_t& cache_entry_map) 
-{
-	if(!mEnabled)
-	{
-		llwarns << "Not reading cache for handle " << handle << "): Cache is currently disabled." << llendl;
-		return ;
-	}
-	llassert_always(mInitialized);
-
-	handle_entry_map_t::iterator iter = mHandleEntryMap.find(handle) ;
-	if(iter == mHandleEntryMap.end()) //no cache
-	{
-		llwarns << "No handle map entry for " << handle << llendl;
-		return ;
-	}
-
-	bool success = true ;
-	{
-		std::string filename;
-		getObjectCacheFilename(handle, filename);
-		LLAPRFile apr_file(filename, APR_READ|APR_BINARY, mLocalAPRFilePoolp);
-	
-		LLUUID cache_id ;
-		success = check_read(&apr_file, cache_id.mData, UUID_BYTES) ;
-	
-		if(success)
-		{		
-			if(cache_id != id)
-			{
-				llinfos << "Cache ID doesn't match for this region, discarding"<< llendl;
-				success = false ;
-			}
-
-			if(success)
-			{
-				S32 num_entries;
-				success = check_read(&apr_file, &num_entries, sizeof(S32)) ;
-	
-				for (S32 i = 0; success && i < num_entries; i++)
-				{
-					LLVOCacheEntry* entry = new LLVOCacheEntry(&apr_file);
-					if (!entry->getLocalID())
-					{
-						llwarns << "Aborting cache file load for " << filename << ", cache file corruption!" << llendl;
-						delete entry ;
-						success = false ;
-					}
-					cache_entry_map[entry->getLocalID()] = entry;
-				}
-			}
-		}		
-	}
-	
-	if(!success)
-	{
-		if(cache_entry_map.empty())
-		{
-			removeEntry(iter->second) ;
-		}
-	}
-
-	return ;
-}
-	
-void LLVOCache::purgeEntries(U32 size)
-{
-	while(mHeaderEntryQueue.size() > size)
-	{
-		header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin() ;
-		HeaderEntryInfo* entry = *iter ;			
-		mHandleEntryMap.erase(entry->mHandle);
-		mHeaderEntryQueue.erase(iter) ;
-		removeFromCache(entry) ;
-		delete entry;
-	}
-	mNumEntries = mHandleEntryMap.size() ;
-}
-
-void LLVOCache::writeToCache(U64 handle, const LLUUID& id, const LLVOCacheEntry::vocache_entry_map_t& cache_entry_map, BOOL dirty_cache) 
-{
-	if(!mEnabled)
-	{
-		llwarns << "Not writing cache for handle " << handle << "): Cache is currently disabled." << llendl;
-		return ;
-	}
-	llassert_always(mInitialized);
-
-	if(mReadOnly)
-	{
-		llwarns << "Not writing cache for handle " << handle << "): Cache is currently in read-only mode." << llendl;
-		return ;
-	}	
-
-	HeaderEntryInfo* entry;
-	handle_entry_map_t::iterator iter = mHandleEntryMap.find(handle) ;
-	if(iter == mHandleEntryMap.end()) //new entry
-	{				
-		if(mNumEntries >= mCacheSize - 1)
-		{
-			purgeEntries(mCacheSize - 1) ;
-		}
-
-		entry = new HeaderEntryInfo();
-		entry->mHandle = handle ;
-		entry->mTime = time(NULL) ;
-		entry->mIndex = mNumEntries++;
-		mHeaderEntryQueue.insert(entry) ;
-		mHandleEntryMap[handle] = entry ;
-	}
-	else
-	{
-		// Update access time.
-		entry = iter->second ;		
-
-		//resort
-		mHeaderEntryQueue.erase(entry) ;
-		
-		entry->mTime = time(NULL) ;
-		mHeaderEntryQueue.insert(entry) ;
-	}
-
-	//update cache header
-	if(!updateEntry(entry))
-	{
-		llwarns << "Failed to update cache header index " << entry->mIndex << ". handle = " << handle << llendl;
-		return ; //update failed.
-	}
-
-	if(!dirty_cache)
-	{
-		llwarns << "Skipping write to cache for handle " << handle << ": cache not dirty" << llendl;
-		return ; //nothing changed, no need to update.
-	}
-
-	//write to cache file
-	bool success = true ;
-	{
-		std::string filename;
-		getObjectCacheFilename(handle, filename);
-		LLAPRFile apr_file(filename, APR_CREATE|APR_WRITE|APR_BINARY, mLocalAPRFilePoolp);
-	
-		success = check_write(&apr_file, (void*)id.mData, UUID_BYTES) ;
-
-	
-		if(success)
-		{
-			S32 num_entries = cache_entry_map.size() ;
-			success = check_write(&apr_file, &num_entries, sizeof(S32));
-	
-			for (LLVOCacheEntry::vocache_entry_map_t::const_iterator iter = cache_entry_map.begin(); success && iter != cache_entry_map.end(); ++iter)
-			{
-				success = iter->second->writeToFile(&apr_file) ;
-			}
-		}
-	}
-
-	if(!success)
-	{
-		removeEntry(entry) ;
-
-	}
-
-	return ;
-}
-
+/** 
+ * @file llvocache.cpp
+ * @brief Cache of objects on the viewer.
+ *
+ * $LicenseInfo:firstyear=2003&license=viewerlgpl$
+ * 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
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+#include "llvocache.h"
+#include "llerror.h"
+#include "llregionhandle.h"
+#include "llviewercontrol.h"
+
+BOOL check_read(LLAPRFile* apr_file, void* src, S32 n_bytes) 
+{
+	return apr_file->read(src, n_bytes) == n_bytes ;
+}
+
+BOOL check_write(LLAPRFile* apr_file, void* src, S32 n_bytes) 
+{
+	return apr_file->write(src, n_bytes) == n_bytes ;
+}
+
+
+//---------------------------------------------------------------------------
+// LLVOCacheEntry
+//---------------------------------------------------------------------------
+
+LLVOCacheEntry::LLVOCacheEntry(U32 local_id, U32 crc, LLDataPackerBinaryBuffer &dp)
+	:
+	mLocalID(local_id),
+	mCRC(crc),
+	mHitCount(0),
+	mDupeCount(0),
+	mCRCChangeCount(0)
+{
+	mBuffer = new U8[dp.getBufferSize()];
+	mDP.assignBuffer(mBuffer, dp.getBufferSize());
+	mDP = dp;
+}
+
+LLVOCacheEntry::LLVOCacheEntry()
+	:
+	mLocalID(0),
+	mCRC(0),
+	mHitCount(0),
+	mDupeCount(0),
+	mCRCChangeCount(0),
+	mBuffer(NULL)
+{
+	mDP.assignBuffer(mBuffer, 0);
+}
+
+LLVOCacheEntry::LLVOCacheEntry(LLAPRFile* apr_file)
+	: mBuffer(NULL)
+{
+	S32 size = -1;
+	BOOL success;
+
+	success = check_read(apr_file, &mLocalID, sizeof(U32));
+	if(success)
+	{
+		success = check_read(apr_file, &mCRC, sizeof(U32));
+	}
+	if(success)
+	{
+		success = check_read(apr_file, &mHitCount, sizeof(S32));
+	}
+	if(success)
+	{
+		success = check_read(apr_file, &mDupeCount, sizeof(S32));
+	}
+	if(success)
+	{
+		success = check_read(apr_file, &mCRCChangeCount, sizeof(S32));
+	}
+	if(success)
+	{
+		success = check_read(apr_file, &size, sizeof(S32));
+
+		// Corruption in the cache entries
+		if ((size > 10000) || (size < 1))
+		{
+			// We've got a bogus size, skip reading it.
+			// We won't bother seeking, because the rest of this file
+			// is likely bogus, and will be tossed anyway.
+			llwarns << "Bogus cache entry, size " << size << ", aborting!" << llendl;
+			success = FALSE;
+		}
+	}
+	if(success && size > 0)
+	{
+		mBuffer = new U8[size];
+		success = check_read(apr_file, mBuffer, size);
+
+		if(success)
+		{
+			mDP.assignBuffer(mBuffer, size);
+		}
+		else
+		{
+			delete[] mBuffer ;
+			mBuffer = NULL ;
+		}
+	}
+
+	if(!success)
+	{
+		mLocalID = 0;
+		mCRC = 0;
+		mHitCount = 0;
+		mDupeCount = 0;
+		mCRCChangeCount = 0;
+		mBuffer = NULL;
+	}
+}
+
+LLVOCacheEntry::~LLVOCacheEntry()
+{
+	if(mBuffer)
+	{
+		delete[] mBuffer;
+	}
+}
+
+
+// New CRC means the object has changed.
+void LLVOCacheEntry::assignCRC(U32 crc, LLDataPackerBinaryBuffer &dp)
+{
+	if (  (mCRC != crc)
+		||(mDP.getBufferSize() == 0))
+	{
+		mCRC = crc;
+		mHitCount = 0;
+		mCRCChangeCount++;
+
+		mDP.freeBuffer();
+		mBuffer = new U8[dp.getBufferSize()];
+		mDP.assignBuffer(mBuffer, dp.getBufferSize());
+		mDP = dp;
+	}
+}
+
+LLDataPackerBinaryBuffer *LLVOCacheEntry::getDP(U32 crc)
+{
+	if (  (mCRC != crc)
+		||(mDP.getBufferSize() == 0))
+	{
+		//llinfos << "Not getting cache entry, invalid!" << llendl;
+		return NULL;
+	}
+	mHitCount++;
+	return &mDP;
+}
+
+
+void LLVOCacheEntry::recordHit()
+{
+	mHitCount++;
+}
+
+
+void LLVOCacheEntry::dump() const
+{
+	llinfos << "local " << mLocalID
+		<< " crc " << mCRC
+		<< " hits " << mHitCount
+		<< " dupes " << mDupeCount
+		<< " change " << mCRCChangeCount
+		<< llendl;
+}
+
+BOOL LLVOCacheEntry::writeToFile(LLAPRFile* apr_file) const
+{
+	BOOL success;
+	success = check_write(apr_file, (void*)&mLocalID, sizeof(U32));
+	if(success)
+	{
+		success = check_write(apr_file, (void*)&mCRC, sizeof(U32));
+	}
+	if(success)
+	{
+		success = check_write(apr_file, (void*)&mHitCount, sizeof(S32));
+	}
+	if(success)
+	{
+		success = check_write(apr_file, (void*)&mDupeCount, sizeof(S32));
+	}
+	if(success)
+	{
+		success = check_write(apr_file, (void*)&mCRCChangeCount, sizeof(S32));
+	}
+	if(success)
+	{
+		S32 size = mDP.getBufferSize();
+		success = check_write(apr_file, (void*)&size, sizeof(S32));
+	
+		if(success)
+		{
+			success = check_write(apr_file, (void*)mBuffer, size);
+		}
+	}
+
+	return success ;
+}
+
+//-------------------------------------------------------------------
+//LLVOCache
+//-------------------------------------------------------------------
+// Format string used to construct filename for the object cache
+static const char OBJECT_CACHE_FILENAME[] = "objects_%d_%d.slc";
+
+const U32 MAX_NUM_OBJECT_ENTRIES = 128 ;
+const U32 MIN_ENTRIES_TO_PURGE = 16 ;
+const U32 INVALID_TIME = 0 ;
+const char* object_cache_dirname = "objectcache";
+const char* header_filename = "object.cache";
+
+LLVOCache* LLVOCache::sInstance = NULL;
+
+//static 
+LLVOCache* LLVOCache::getInstance() 
+{	
+	if(!sInstance)
+	{
+		sInstance = new LLVOCache() ;
+	}
+	return sInstance ;
+}
+
+//static 
+BOOL LLVOCache::hasInstance() 
+{
+	return sInstance != NULL ;
+}
+
+//static 
+void LLVOCache::destroyClass() 
+{
+	if(sInstance)
+	{
+		delete sInstance ;
+		sInstance = NULL ;
+	}
+}
+
+LLVOCache::LLVOCache():
+	mInitialized(FALSE),
+	mReadOnly(TRUE),
+	mNumEntries(0),
+	mCacheSize(1)
+{
+	mEnabled = gSavedSettings.getBOOL("ObjectCacheEnabled");
+	mLocalAPRFilePoolp = new LLVolatileAPRPool() ;
+}
+
+LLVOCache::~LLVOCache()
+{
+	if(mEnabled)
+	{
+		writeCacheHeader();
+		clearCacheInMemory();
+	}
+	delete mLocalAPRFilePoolp;
+}
+
+void LLVOCache::setDirNames(ELLPath location)
+{
+	std::string delem = gDirUtilp->getDirDelimiter();
+
+	mHeaderFileName = gDirUtilp->getExpandedFilename(location, object_cache_dirname, header_filename);
+	mObjectCacheDirName = gDirUtilp->getExpandedFilename(location, object_cache_dirname);
+}
+
+void LLVOCache::initCache(ELLPath location, U32 size, U32 cache_version)
+{
+	if(!mEnabled)
+	{
+		llwarns << "Not initializing cache: Cache is currently disabled." << llendl;
+		return ;
+	}
+
+	if(mInitialized)
+	{
+		llwarns << "Cache already initialized." << llendl;
+		return ;
+	}
+	mInitialized = TRUE ;
+
+	setDirNames(location);
+	if (!mReadOnly)
+	{
+		LLFile::mkdir(mObjectCacheDirName);
+	}
+	mCacheSize = llclamp(size, MIN_ENTRIES_TO_PURGE, MAX_NUM_OBJECT_ENTRIES);
+	mMetaInfo.mVersion = cache_version;
+	readCacheHeader();	
+
+	if(mMetaInfo.mVersion != cache_version) 
+	{
+		mMetaInfo.mVersion = cache_version ;
+		if(mReadOnly) //disable cache
+		{
+			clearCacheInMemory();
+		}
+		else //delete the current cache if the format does not match.
+		{			
+			removeCache();
+		}
+	}	
+}
+	
+void LLVOCache::removeCache(ELLPath location) 
+{
+	if(mReadOnly)
+	{
+		llwarns << "Not removing cache at " << location << ": Cache is currently in read-only mode." << llendl;
+		return ;
+	}
+
+	llinfos << "about to remove the object cache due to settings." << llendl ;
+
+	std::string delem = gDirUtilp->getDirDelimiter();
+	std::string mask = delem + "*";
+	std::string cache_dir = gDirUtilp->getExpandedFilename(location, object_cache_dirname);
+	llinfos << "Removing cache at " << cache_dir << llendl;
+	gDirUtilp->deleteFilesInDir(cache_dir, mask); //delete all files
+	LLFile::rmdir(cache_dir);
+
+	clearCacheInMemory();
+	mInitialized = FALSE ;
+}
+
+void LLVOCache::removeCache() 
+{
+	llassert_always(mInitialized) ;
+	if(mReadOnly)
+	{
+		llwarns << "Not clearing object cache: Cache is currently in read-only mode." << llendl;
+		return ;
+	}
+
+	llinfos << "about to remove the object cache due to some error." << llendl ;
+
+	std::string delem = gDirUtilp->getDirDelimiter();
+	std::string mask = delem + "*";
+	llinfos << "Removing cache at " << mObjectCacheDirName << llendl;
+	gDirUtilp->deleteFilesInDir(mObjectCacheDirName, mask); 
+
+	clearCacheInMemory() ;
+	writeCacheHeader();
+}
+
+void LLVOCache::removeEntry(HeaderEntryInfo* entry) 
+{
+	llassert_always(mInitialized) ;
+	if(mReadOnly)
+	{
+		return ;
+	}
+	if(!entry)
+	{
+		return ;
+	}
+
+	header_entry_queue_t::iterator iter = mHeaderEntryQueue.find(entry) ;
+	if(iter != mHeaderEntryQueue.end())
+	{		
+		mHandleEntryMap.erase(entry->mHandle) ;		
+		mHeaderEntryQueue.erase(iter) ;
+		removeFromCache(entry) ;
+		delete entry ;
+
+		mNumEntries = mHandleEntryMap.size() ;
+	}
+}
+
+void LLVOCache::removeEntry(U64 handle) 
+{
+	handle_entry_map_t::iterator iter = mHandleEntryMap.find(handle) ;
+	if(iter == mHandleEntryMap.end()) //no cache
+	{
+		return ;
+	}
+	HeaderEntryInfo* entry = iter->second ;
+	removeEntry(entry) ;
+}
+
+void LLVOCache::clearCacheInMemory()
+{
+	if(!mHeaderEntryQueue.empty()) 
+	{
+		for(header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin(); iter != mHeaderEntryQueue.end(); ++iter)
+		{
+			delete *iter ;
+		}
+		mHeaderEntryQueue.clear();
+		mHandleEntryMap.clear();
+		mNumEntries = 0 ;
+	}
+
+}
+
+void LLVOCache::getObjectCacheFilename(U64 handle, std::string& filename) 
+{
+	U32 region_x, region_y;
+
+	grid_from_region_handle(handle, &region_x, &region_y);
+	filename = gDirUtilp->getExpandedFilename(LL_PATH_CACHE, object_cache_dirname,
+			   llformat(OBJECT_CACHE_FILENAME, region_x, region_y));
+
+	return ;
+}
+
+void LLVOCache::removeFromCache(HeaderEntryInfo* entry)
+{
+	if(mReadOnly)
+	{
+		llwarns << "Not removing cache for handle " << entry->mHandle << ": Cache is currently in read-only mode." << llendl;
+		return ;
+	}
+
+	std::string filename;
+	getObjectCacheFilename(entry->mHandle, filename);
+	LLAPRFile::remove(filename, mLocalAPRFilePoolp);
+	entry->mTime = INVALID_TIME ;
+	updateEntry(entry) ; //update the head file.
+}
+
+void LLVOCache::readCacheHeader()
+{
+	if(!mEnabled)
+	{
+		llwarns << "Not reading cache header: Cache is currently disabled." << llendl;
+		return;
+	}
+
+	//clear stale info.
+	clearCacheInMemory();	
+
+	bool success = true ;
+	if (LLAPRFile::isExist(mHeaderFileName, mLocalAPRFilePoolp))
+	{
+		LLAPRFile apr_file(mHeaderFileName, APR_READ|APR_BINARY, mLocalAPRFilePoolp);		
+		
+		//read the meta element
+		success = check_read(&apr_file, &mMetaInfo, sizeof(HeaderMetaInfo)) ;
+		
+		if(success)
+		{
+			HeaderEntryInfo* entry = NULL ;
+			mNumEntries = 0 ;
+			U32 num_read = 0 ;
+			while(num_read++ < MAX_NUM_OBJECT_ENTRIES)
+			{
+				if(!entry)
+				{
+					entry = new HeaderEntryInfo() ;
+				}
+				success = check_read(&apr_file, entry, sizeof(HeaderEntryInfo));
+								
+				if(!success) //failed
+				{
+					llwarns << "Error reading cache header entry. (entry_index=" << mNumEntries << ")" << llendl;
+					delete entry ;
+					entry = NULL ;
+					break ;
+				}
+				else if(entry->mTime == INVALID_TIME)
+				{
+					continue ; //an empty entry
+				}
+
+				entry->mIndex = mNumEntries++ ;
+				mHeaderEntryQueue.insert(entry) ;
+				mHandleEntryMap[entry->mHandle] = entry ;
+				entry = NULL ;
+			}
+			if(entry)
+			{
+				delete entry ;
+			}
+		}
+
+		//---------
+		//debug code
+		//----------
+		//std::string name ;
+		//for(header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin() ; success && iter != mHeaderEntryQueue.end(); ++iter)
+		//{
+		//	getObjectCacheFilename((*iter)->mHandle, name) ;
+		//	llinfos << name << llendl ;
+		//}
+		//-----------
+	}
+	else
+	{
+		writeCacheHeader() ;
+	}
+
+	if(!success)
+	{
+		removeCache() ; //failed to read header, clear the cache
+	}
+	else if(mNumEntries >= mCacheSize)
+	{
+		purgeEntries(mCacheSize) ;
+	}
+
+	return ;
+}
+
+void LLVOCache::writeCacheHeader()
+{
+	if (!mEnabled)
+	{
+		llwarns << "Not writing cache header: Cache is currently disabled." << llendl;
+		return;
+	}
+
+	if(mReadOnly)
+	{
+		llwarns << "Not writing cache header: Cache is currently in read-only mode." << llendl;
+		return;
+	}
+
+	bool success = true ;
+	{
+		LLAPRFile apr_file(mHeaderFileName, APR_CREATE|APR_WRITE|APR_BINARY, mLocalAPRFilePoolp);
+
+		//write the meta element
+		success = check_write(&apr_file, &mMetaInfo, sizeof(HeaderMetaInfo)) ;
+
+
+		mNumEntries = 0 ;	
+		for(header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin() ; success && iter != mHeaderEntryQueue.end(); ++iter)
+		{
+			(*iter)->mIndex = mNumEntries++ ;
+			success = check_write(&apr_file, (void*)*iter, sizeof(HeaderEntryInfo));
+		}
+	
+		mNumEntries = mHeaderEntryQueue.size() ;
+		if(success && mNumEntries < MAX_NUM_OBJECT_ENTRIES)
+		{
+			HeaderEntryInfo* entry = new HeaderEntryInfo() ;
+			entry->mTime = INVALID_TIME ;
+			for(S32 i = mNumEntries ; success && i < MAX_NUM_OBJECT_ENTRIES ; i++)
+			{
+				//fill the cache with the default entry.
+				success = check_write(&apr_file, entry, sizeof(HeaderEntryInfo)) ;			
+
+			}
+			delete entry ;
+		}
+	}
+
+	if(!success)
+	{
+		clearCacheInMemory() ;
+		mReadOnly = TRUE ; //disable the cache.
+	}
+	return ;
+}
+
+BOOL LLVOCache::updateEntry(const HeaderEntryInfo* entry)
+{
+	LLAPRFile apr_file(mHeaderFileName, APR_WRITE|APR_BINARY, mLocalAPRFilePoolp);
+	apr_file.seek(APR_SET, entry->mIndex * sizeof(HeaderEntryInfo) + sizeof(HeaderMetaInfo)) ;
+
+	return check_write(&apr_file, (void*)entry, sizeof(HeaderEntryInfo)) ;
+}
+
+void LLVOCache::readFromCache(U64 handle, const LLUUID& id, LLVOCacheEntry::vocache_entry_map_t& cache_entry_map) 
+{
+	if(!mEnabled)
+	{
+		llwarns << "Not reading cache for handle " << handle << "): Cache is currently disabled." << llendl;
+		return ;
+	}
+	llassert_always(mInitialized);
+
+	handle_entry_map_t::iterator iter = mHandleEntryMap.find(handle) ;
+	if(iter == mHandleEntryMap.end()) //no cache
+	{
+		llwarns << "No handle map entry for " << handle << llendl;
+		return ;
+	}
+
+	bool success = true ;
+	{
+		std::string filename;
+		getObjectCacheFilename(handle, filename);
+		LLAPRFile apr_file(filename, APR_READ|APR_BINARY, mLocalAPRFilePoolp);
+	
+		LLUUID cache_id ;
+		success = check_read(&apr_file, cache_id.mData, UUID_BYTES) ;
+	
+		if(success)
+		{		
+			if(cache_id != id)
+			{
+				llinfos << "Cache ID doesn't match for this region, discarding"<< llendl;
+				success = false ;
+			}
+
+			if(success)
+			{
+				S32 num_entries;
+				success = check_read(&apr_file, &num_entries, sizeof(S32)) ;
+	
+				for (S32 i = 0; success && i < num_entries; i++)
+				{
+					LLVOCacheEntry* entry = new LLVOCacheEntry(&apr_file);
+					if (!entry->getLocalID())
+					{
+						llwarns << "Aborting cache file load for " << filename << ", cache file corruption!" << llendl;
+						delete entry ;
+						success = false ;
+					}
+					cache_entry_map[entry->getLocalID()] = entry;
+				}
+			}
+		}		
+	}
+	
+	if(!success)
+	{
+		if(cache_entry_map.empty())
+		{
+			removeEntry(iter->second) ;
+		}
+	}
+
+	return ;
+}
+	
+void LLVOCache::purgeEntries(U32 size)
+{
+	while(mHeaderEntryQueue.size() > size)
+	{
+		header_entry_queue_t::iterator iter = mHeaderEntryQueue.begin() ;
+		HeaderEntryInfo* entry = *iter ;			
+		mHandleEntryMap.erase(entry->mHandle);
+		mHeaderEntryQueue.erase(iter) ;
+		removeFromCache(entry) ;
+		delete entry;
+	}
+	mNumEntries = mHandleEntryMap.size() ;
+}
+
+void LLVOCache::writeToCache(U64 handle, const LLUUID& id, const LLVOCacheEntry::vocache_entry_map_t& cache_entry_map, BOOL dirty_cache) 
+{
+	if(!mEnabled)
+	{
+		llwarns << "Not writing cache for handle " << handle << "): Cache is currently disabled." << llendl;
+		return ;
+	}
+	llassert_always(mInitialized);
+
+	if(mReadOnly)
+	{
+		llwarns << "Not writing cache for handle " << handle << "): Cache is currently in read-only mode." << llendl;
+		return ;
+	}	
+
+	HeaderEntryInfo* entry;
+	handle_entry_map_t::iterator iter = mHandleEntryMap.find(handle) ;
+	if(iter == mHandleEntryMap.end()) //new entry
+	{				
+		if(mNumEntries >= mCacheSize - 1)
+		{
+			purgeEntries(mCacheSize - 1) ;
+		}
+
+		entry = new HeaderEntryInfo();
+		entry->mHandle = handle ;
+		entry->mTime = time(NULL) ;
+		entry->mIndex = mNumEntries++;
+		mHeaderEntryQueue.insert(entry) ;
+		mHandleEntryMap[handle] = entry ;
+	}
+	else
+	{
+		// Update access time.
+		entry = iter->second ;		
+
+		//resort
+		mHeaderEntryQueue.erase(entry) ;
+		
+		entry->mTime = time(NULL) ;
+		mHeaderEntryQueue.insert(entry) ;
+	}
+
+	//update cache header
+	if(!updateEntry(entry))
+	{
+		llwarns << "Failed to update cache header index " << entry->mIndex << ". handle = " << handle << llendl;
+		return ; //update failed.
+	}
+
+	if(!dirty_cache)
+	{
+		llwarns << "Skipping write to cache for handle " << handle << ": cache not dirty" << llendl;
+		return ; //nothing changed, no need to update.
+	}
+
+	//write to cache file
+	bool success = true ;
+	{
+		std::string filename;
+		getObjectCacheFilename(handle, filename);
+		LLAPRFile apr_file(filename, APR_CREATE|APR_WRITE|APR_BINARY, mLocalAPRFilePoolp);
+	
+		success = check_write(&apr_file, (void*)id.mData, UUID_BYTES) ;
+
+	
+		if(success)
+		{
+			S32 num_entries = cache_entry_map.size() ;
+			success = check_write(&apr_file, &num_entries, sizeof(S32));
+	
+			for (LLVOCacheEntry::vocache_entry_map_t::const_iterator iter = cache_entry_map.begin(); success && iter != cache_entry_map.end(); ++iter)
+			{
+				success = iter->second->writeToFile(&apr_file) ;
+			}
+		}
+	}
+
+	if(!success)
+	{
+		removeEntry(entry) ;
+
+	}
+
+	return ;
+}
+