Extracted mWearableDatas from LLAgentWearables into llappearance/LLWearableData. Moved LLDriverParam into llappearance

25 files changed, 747 insertions, 537 deletions

diff --git a/indra/llappearance/CMakeLists.txt b/indra/llappearance/CMakeLists.txt
index 0206f76546..41da898457 100644
--- a/indra/llappearance/CMakeLists.txt
+++ b/indra/llappearance/CMakeLists.txt
@@ -42,6 +42,7 @@ include_directories(
 
 set(llappearance_SOURCE_FILES
     llavatarappearance.cpp
+    lldriverparam.cpp
     llinventoryicon.cpp
     lllocaltextureobject.cpp
     lltexglobalcolor.cpp
@@ -49,6 +50,7 @@ set(llappearance_SOURCE_FILES
     lltexlayerparams.cpp
     lltexturemanagerbridge.cpp
     llwearable.cpp
+    llwearabledata.cpp
     llwearabletype.cpp
     llviewervisualparam.cpp
     llavatarappearancedefines.cpp
@@ -58,6 +60,7 @@ set(llappearance_HEADER_FILES
     CMakeLists.txt
 
     llavatarappearance.h
+    lldriverparam.h
     llinventoryicon.h
     lljointpickname.h
     lllocaltextureobject.h
@@ -66,6 +69,7 @@ set(llappearance_HEADER_FILES
     lltexlayerparams.h
     lltexturemanagerbridge.h
     llwearable.h
+    llwearabledata.h
     llwearabletype.h
     llviewervisualparam.h
     llavatarappearancedefines.h
diff --git a/indra/llappearance/llavatarappearance.cpp b/indra/llappearance/llavatarappearance.cpp
index 75b9c1ffa5..0f0942d8dc 100644
--- a/indra/llappearance/llavatarappearance.cpp
+++ b/indra/llappearance/llavatarappearance.cpp
@@ -29,16 +29,19 @@
 #include "llavatarappearance.h"
 #include "lldeleteutils.h"
 #include "lltexglobalcolor.h"
+#include "llwearabledata.h"
 
 const LLColor4 DUMMY_COLOR = LLColor4(0.5,0.5,0.5,1.0);
 
-LLAvatarAppearance::LLAvatarAppearance() :
+LLAvatarAppearance::LLAvatarAppearance(LLWearableData* wearable_data) :
 	LLCharacter(),
+	mIsDummy(FALSE),
 	mTexSkinColor( NULL ),
 	mTexHairColor( NULL ),
 	mTexEyeColor( NULL ),
-	mIsDummy(FALSE)
+	mWearableData(wearable_data)
 {
+	llassert(mWearableData);
 }
 
 // virtual
@@ -51,6 +54,17 @@ LLAvatarAppearance::~LLAvatarAppearance()
 
 using namespace LLAvatarAppearanceDefines;
 
+// virtual
+BOOL LLAvatarAppearance::isValid() const
+{
+	// This should only be called on ourself.
+	if (!isSelf())
+	{
+		llerrs << "Called LLAvatarAppearance::isValid() on when isSelf() == false" << llendl;
+	}
+	return TRUE;
+}
+
 //static
 BOOL LLAvatarAppearance::teToColorParams( ETextureIndex te, U32 *param_name )
 {
@@ -178,5 +192,47 @@ LLColor4 LLAvatarAppearance::getGlobalColor( const std::string& color_name ) con
 	}
 }
 
+// Unlike most wearable functions, this works for both self and other.
+// virtual
+BOOL LLAvatarAppearance::isWearingWearableType(LLWearableType::EType type) const
+{
+	if (mIsDummy) return TRUE;
+
+	switch(type)
+	{
+		case LLWearableType::WT_SHAPE:
+		case LLWearableType::WT_SKIN:
+		case LLWearableType::WT_HAIR:
+		case LLWearableType::WT_EYES:
+			return TRUE;  // everyone has all bodyparts
+		default:
+			break; // Do nothing
+	}
+
+	/* switch(type)
+		case LLWearableType::WT_SHIRT:
+			indicator_te = TEX_UPPER_SHIRT; */
+	for (LLAvatarAppearanceDictionary::Textures::const_iterator tex_iter = LLAvatarAppearanceDictionary::getInstance()->getTextures().begin();
+		 tex_iter != LLAvatarAppearanceDictionary::getInstance()->getTextures().end();
+		 ++tex_iter)
+	{
+		const LLAvatarAppearanceDictionary::TextureEntry *texture_dict = tex_iter->second;
+		if (texture_dict->mWearableType == type)
+		{
+			// If you're checking another avatar's clothing, you don't have component textures.
+			// Thus, you must check to see if the corresponding baked texture is defined.
+			// NOTE: this is a poor substitute if you actually want to know about individual pieces of clothing
+			// this works for detecting a skirt (most important), but is ineffective at any piece of clothing that
+			// gets baked into a texture that always exists (upper or lower).
+			if (texture_dict->mIsUsedByBakedTexture)
+			{
+				const EBakedTextureIndex baked_index = texture_dict->mBakedTextureIndex;
+				return isTextureDefined(LLAvatarAppearanceDictionary::getInstance()->getBakedTexture(baked_index)->mTextureIndex);
+			}
+			return FALSE;
+		}
+	}
+	return FALSE;
+}
 
 
diff --git a/indra/llappearance/llavatarappearance.h b/indra/llappearance/llavatarappearance.h
index 0e746b3b9d..2209ede927 100644
--- a/indra/llappearance/llavatarappearance.h
+++ b/indra/llappearance/llavatarappearance.h
@@ -33,6 +33,7 @@
 
 class LLTexLayerSet;
 class LLTexGlobalColor;
+class LLWearableData;
 
 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 // LLAvatarAppearance
@@ -47,9 +48,12 @@ class LLAvatarAppearance : public LLCharacter
  **                                                                            **
  **                    INITIALIZATION
  **/
+private:
+	// Hide default constructor.
+	LLAvatarAppearance() {}
 
 public:
-	LLAvatarAppearance();
+	LLAvatarAppearance(LLWearableData* wearable_data);
 	virtual ~LLAvatarAppearance();
 
 /**                    Initialization
@@ -62,6 +66,7 @@ public:
  **/
 public:
 	virtual bool 	isSelf() const { return false; } // True if this avatar is for this viewer's agent
+	virtual BOOL	isValid() const;
 	virtual BOOL	isUsingBakedTextures() const = 0;
 	
 /**                    State
@@ -145,15 +150,13 @@ public:
  **/
 
 public:
-	virtual BOOL			isWearingWearableType(LLWearableType::EType type ) const = 0;
-
-	virtual U32				getWearableCount(const LLWearableType::EType type) const = 0;
-	virtual U32				getWearableCount(const U32 tex_index) const = 0;
-
-	virtual LLWearable*			getWearable(const LLWearableType::EType type, U32 index /*= 0*/) = 0;
-	virtual const LLWearable* 	getWearable(const LLWearableType::EType type, U32 index /*= 0*/) const = 0;
-
+	LLWearableData*			getWearableData() { return mWearableData; }
+	const LLWearableData*	getWearableData() const { return mWearableData; }
+	virtual BOOL isTextureDefined(LLAvatarAppearanceDefines::ETextureIndex te, U32 index = 0 ) const = 0;
+	virtual BOOL			isWearingWearableType(LLWearableType::EType type ) const;
 
+private:
+	LLWearableData* mWearableData;
 };
 
 #endif // LL_AVATAR_APPEARANCE_H
diff --git a/indra/newview/lldriverparam.cpp b/indra/llappearance/lldriverparam.cpp
index 5abf72d51f..1092b525d0 100644
--- a/indra/newview/lldriverparam.cpp
+++ b/indra/llappearance/lldriverparam.cpp
@@ -24,22 +24,20 @@
  * $/LicenseInfo$
  */
 
-#include "llviewerprecompiledheaders.h"
+#include "linden_common.h"
 
 #include "lldriverparam.h"
 
-#include "llfasttimer.h"
-#include "llvoavatar.h"
-#include "llvoavatarself.h"
-#include "llagent.h"
-#include "llviewerwearable.h"
-#include "llagentwearables.h"
+#include "llavatarappearance.h"
+#include "llwearable.h"
+#include "llwearabledata.h"
 
 //-----------------------------------------------------------------------------
 // LLDriverParamInfo
 //-----------------------------------------------------------------------------
 
-LLDriverParamInfo::LLDriverParamInfo()
+LLDriverParamInfo::LLDriverParamInfo() :
+	mDriverParam(NULL)
 {
 }
 
@@ -112,12 +110,14 @@ void LLDriverParamInfo::toStream(std::ostream &out)
 
 	out << std::endl;
 
-	if(isAgentAvatarValid())
+	if(mDriverParam && mDriverParam->getAvatarAppearance()->isSelf() &&
+		mDriverParam->getAvatarAppearance()->isValid())
 	{
 		for (entry_info_list_t::iterator iter = mDrivenInfoList.begin(); iter != mDrivenInfoList.end(); iter++)
 		{
 			LLDrivenEntryInfo driven = *iter;
-			LLViewerVisualParam *param = (LLViewerVisualParam*)gAgentAvatarp->getVisualParam(driven.mDrivenID);
+			LLViewerVisualParam *param = 
+				(LLViewerVisualParam*)mDriverParam->getAvatarAppearance()->getVisualParam(driven.mDrivenID);
 			if (param)
 			{
 				param->getInfo()->toStream(out);
@@ -139,7 +139,9 @@ void LLDriverParamInfo::toStream(std::ostream &out)
 			}
 			else
 			{
-				llwarns << "could not get parameter " << driven.mDrivenID << " from avatar " << gAgentAvatarp.get() << " for driver parameter " << getID() << llendl;
+				llwarns << "could not get parameter " << driven.mDrivenID << " from avatar " 
+						<< mDriverParam->getAvatarAppearance() 
+						<< " for driver parameter " << getID() << llendl;
 			}
 			out << std::endl;
 		}
@@ -150,19 +152,16 @@ void LLDriverParamInfo::toStream(std::ostream &out)
 // LLDriverParam
 //-----------------------------------------------------------------------------
 
-LLDriverParam::LLDriverParam(LLVOAvatar *avatarp) : 
+LLDriverParam::LLDriverParam(LLAvatarAppearance *appearance, LLWearable* wearable /* = NULL */) :
 	mCurrentDistortionParam( NULL ), 
-	mAvatarp(avatarp), 
-	mWearablep(NULL)
-{
-	mDefaultVec.clear();
-}
-
-LLDriverParam::LLDriverParam(LLWearable *wearablep) : 
-	mCurrentDistortionParam( NULL ), 
-	mAvatarp(NULL), 
-	mWearablep(wearablep)
+	mAvatarAppearance(appearance), 
+	mWearablep(wearable)
 {
+	llassert(mAvatarAppearance);
+	if (mWearablep)
+	{
+		llassert(mAvatarAppearance->isSelf());
+	}
 	mDefaultVec.clear();
 }
 
@@ -177,67 +176,21 @@ BOOL LLDriverParam::setInfo(LLDriverParamInfo *info)
 		return FALSE;
 	mInfo = info;
 	mID = info->mID;
+	info->mDriverParam = this;
 
 	setWeight(getDefaultWeight(), FALSE );
 
 	return TRUE;
 }
 
-void LLDriverParam::setWearable(LLWearable *wearablep)
-{
-	if (wearablep)
-	{
-		mWearablep = wearablep;
-		mAvatarp = NULL;
-	}
-}
-
-void LLDriverParam::setAvatar(LLVOAvatar *avatarp)
-{
-	if (avatarp)
-	{
-		mWearablep = NULL;
-		mAvatarp = avatarp;
-	}
-}
-
 /*virtual*/ LLViewerVisualParam* LLDriverParam::cloneParam(LLWearable* wearable) const
 {
-	LLDriverParam *new_param;
-	if (wearable)
-	{
-		new_param = new LLDriverParam(wearable);
-	}
-	else
-	{
-		if (mWearablep)
-		{
-			new_param = new LLDriverParam(mWearablep);
-		}
-		else
-		{
-			new_param = new LLDriverParam(mAvatarp);
-		}
-	}
+	llassert(wearable);
+	LLDriverParam *new_param = new LLDriverParam(mAvatarAppearance, wearable);
 	*new_param = *this;
 	return new_param;
 }
 
-#if 0 // obsolete
-BOOL LLDriverParam::parseData(LLXmlTreeNode* node)
-{
-	LLDriverParamInfo* info = new LLDriverParamInfo;
-
-	info->parseXml(node);
-	if (!setInfo(info))
-	{
-		delete info;
-		return FALSE;
-	}
-	return TRUE;
-}
-#endif
-
 void LLDriverParam::setWeight(F32 weight, BOOL upload_bake)
 {
 	F32 min_weight = getMinWeight();
@@ -456,6 +409,20 @@ const LLVector4a*	LLDriverParam::getNextDistortion(U32 *index, LLPolyMesh **poly
 	return v;
 };
 
+S32 LLDriverParam::getDrivenParamsCount() const
+{
+	return mDriven.size();
+}
+
+const LLViewerVisualParam* LLDriverParam::getDrivenParam(S32 index) const
+{
+	if (0 > index || index >= mDriven.size())
+	{
+		return NULL;
+	}
+	return mDriven[index].mParam;
+}
+
 //-----------------------------------------------------------------------------
 // setAnimationTarget()
 //-----------------------------------------------------------------------------
@@ -555,7 +522,7 @@ void LLDriverParam::updateCrossDrivenParams(LLWearableType::EType driven_type)
 		// Thus this wearable needs to get updates from the driver wearable.
 		// The call to setVisualParamWeight seems redundant, but is necessary
 		// as the number of driven wearables has changed since the last update. -Nyx
-		LLWearable *wearable = gAgentWearables.getTopWearable(driver_type);
+		LLWearable *wearable = mAvatarAppearance->getWearableData()->getTopWearable(driver_type);
 		if (wearable)
 		{
 			wearable->setVisualParamWeight(mID, wearable->getVisualParamWeight(mID), false);
@@ -624,12 +591,12 @@ F32 LLDriverParam::getDrivenWeight(const LLDrivenEntry* driven, F32 input_weight
 void LLDriverParam::setDrivenWeight(LLDrivenEntry *driven, F32 driven_weight, bool upload_bake)
 {
 	bool use_self = false;
-	if(isAgentAvatarValid() &&
-		mWearablep && 
+	if(mWearablep &&
+		mAvatarAppearance->isValid() &&
 		driven->mParam->getCrossWearable())
 	{
-		LLViewerWearable* wearable = dynamic_cast<LLViewerWearable*> (mWearablep);
-		if (wearable->isOnTop())
+		LLWearable* wearable = dynamic_cast<LLWearable*> (mWearablep);
+		if (mAvatarAppearance->getWearableData()->isOnTop(wearable))
 		{
 			use_self = true;
 		}
@@ -638,7 +605,7 @@ void LLDriverParam::setDrivenWeight(LLDrivenEntry *driven, F32 driven_weight, bo
 	if (use_self)
 	{
 		// call setWeight through LLVOAvatarSelf so other wearables can be updated with the correct values
-		gAgentAvatarp->setVisualParamWeight( (LLVisualParam*)driven->mParam, driven_weight, upload_bake );
+		mAvatarAppearance->setVisualParamWeight( (LLVisualParam*)driven->mParam, driven_weight, upload_bake );
 	}
 	else
 	{
diff --git a/indra/newview/lldriverparam.h b/indra/llappearance/lldriverparam.h
index 7a4d711d4e..30e71daad9 100644
--- a/indra/newview/lldriverparam.h
+++ b/indra/llappearance/lldriverparam.h
@@ -30,8 +30,8 @@
 #include "llviewervisualparam.h"
 #include "llwearabletype.h"
 
-class LLPhysicsMotion;
-class LLVOAvatar;
+class LLAvatarAppearance;
+class LLDriverParam;
 class LLWearable;
 
 //-----------------------------------------------------------------------------
@@ -71,16 +71,18 @@ public:
 protected:
 	typedef std::deque<LLDrivenEntryInfo> entry_info_list_t;
 	entry_info_list_t mDrivenInfoList;
+	LLDriverParam* mDriverParam; // backpointer
 };
 
 //-----------------------------------------------------------------------------
 
 class LLDriverParam : public LLViewerVisualParam
 {
-	friend class LLPhysicsMotion; // physics motion needs to access driven params directly.
+private:
+	// Hide the default constructor.  Force construction with LLAvatarAppearance.
+	LLDriverParam() {}
 public:
-	LLDriverParam(LLVOAvatar *avatarp);
-	LLDriverParam(LLWearable *wearablep);
+	LLDriverParam(LLAvatarAppearance *appearance, LLWearable* wearable = NULL);
 	~LLDriverParam();
 
 	// Special: These functions are overridden by child classes
@@ -88,14 +90,14 @@ public:
 	//   This sets mInfo and calls initialization functions
 	BOOL					setInfo(LLDriverParamInfo *info);
 
-	void					setWearable(LLWearable *wearablep);
-	void					setAvatar(LLVOAvatar *avatarp);
+	LLAvatarAppearance* getAvatarAppearance() { return mAvatarAppearance; }
+	const LLAvatarAppearance* getAvatarAppearance() const { return mAvatarAppearance; }
+
 	void					updateCrossDrivenParams(LLWearableType::EType driven_type);
 
 	/*virtual*/ LLViewerVisualParam* cloneParam(LLWearable* wearable) const;
 
 	// LLVisualParam Virtual functions
-	///*virtual*/ BOOL				parseData(LLXmlTreeNode* node);
 	/*virtual*/ void				apply( ESex sex ) {} // apply is called separately for each driven param.
 	/*virtual*/ void				setWeight(F32 weight, BOOL upload_bake);
 	/*virtual*/ void				setAnimationTarget( F32 target_value, BOOL upload_bake );
@@ -111,6 +113,9 @@ public:
 	/*virtual*/ const LLVector4a*	getFirstDistortion(U32 *index, LLPolyMesh **poly_mesh);
 	/*virtual*/ const LLVector4a*	getNextDistortion(U32 *index, LLPolyMesh **poly_mesh);
 
+	S32								getDrivenParamsCount() const;
+	const LLViewerVisualParam*		getDrivenParam(S32 index) const;
+
 protected:
 	F32 getDrivenWeight(const LLDrivenEntry* driven, F32 input_weight);
 	void setDrivenWeight(LLDrivenEntry *driven, F32 driven_weight, bool upload_bake);
@@ -121,7 +126,7 @@ protected:
 	entry_list_t mDriven;
 	LLViewerVisualParam* mCurrentDistortionParam;
 	// Backlink only; don't make this an LLPointer.
-	LLVOAvatar* mAvatarp;
+	LLAvatarAppearance* mAvatarAppearance;
 	LLWearable* mWearablep;
 };
 
diff --git a/indra/llappearance/lltexlayer.cpp b/indra/llappearance/lltexlayer.cpp
index a741a83af7..9b70f737a0 100644
--- a/indra/llappearance/lltexlayer.cpp
+++ b/indra/llappearance/lltexlayer.cpp
@@ -40,6 +40,7 @@
 #include "lltexturemanagerbridge.h"
 #include "llui.h"
 #include "llwearable.h"
+#include "llwearabledata.h"
 #include "llvertexbuffer.h"
 #include "llviewervisualparam.h"
 
@@ -1560,11 +1561,11 @@ U32 LLTexLayerTemplate::updateWearableCache() const
 		return 0;
 	}
 	LLWearableType::EType wearable_type = LLAvatarAppearanceDictionary::getTEWearableType((ETextureIndex)te);
-	U32 num_wearables = getAvatarAppearance()->getWearableCount(wearable_type);
+	U32 num_wearables = getAvatarAppearance()->getWearableData()->getWearableCount(wearable_type);
 	U32 added = 0;
 	for (U32 i = 0; i < num_wearables; i++)
 	{
-		LLWearable*  wearable = getAvatarAppearance()->getWearable(wearable_type, i);
+		LLWearable*  wearable = getAvatarAppearance()->getWearableData()->getWearable(wearable_type, i);
 		if (!wearable)
 		{
 			continue;
diff --git a/indra/llappearance/llwearable.h b/indra/llappearance/llwearable.h
index 8a99debac8..e1cd26bdef 100644
--- a/indra/llappearance/llwearable.h
+++ b/indra/llappearance/llwearable.h
@@ -33,6 +33,7 @@
 #include "llwearabletype.h"
 #include "lllocaltextureobject.h"
 
+class LLMD5;
 class LLVisualParam;
 class LLTexGlobalColorInfo;
 class LLTexGlobalColor;
@@ -98,6 +99,12 @@ public:
 	typedef std::map<S32, LLUUID> texture_id_map_t;
 	const texture_id_map_t& getTextureIDMap() const { return mTextureIDMap; }
 
+	// Something happened that requires the wearable to be updated (e.g. worn/unworn).
+	virtual void		setUpdated() const = 0;
+
+	// Update the baked texture hash.
+	virtual void		addToBakedTextureHash(LLMD5& hash) const = 0;
+
 protected:
 	virtual void 	createVisualParams() = 0;
 
diff --git a/indra/llappearance/llwearabledata.cpp b/indra/llappearance/llwearabledata.cpp
new file mode 100644
index 0000000000..d70bbf286a
--- /dev/null
+++ b/indra/llappearance/llwearabledata.cpp
@@ -0,0 +1,353 @@
+/** 
+ * @file llwearabledata.cpp
+ * @brief LLWearableData class implementation
+ *
+ * $LicenseInfo:firstyear=2012&license=viewerlgpl$
+ * 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 "linden_common.h"
+
+#include "llwearabledata.h"
+
+#include "llavatarappearance.h"
+#include "llavatarappearancedefines.h"
+#include "lldriverparam.h"
+#include "llmd5.h"
+
+LLWearableData::LLWearableData() :
+	mAvatarAppearance(NULL)
+{
+}
+
+// virtual
+LLWearableData::~LLWearableData()
+{
+}
+
+using namespace LLAvatarAppearanceDefines;
+
+LLWearable* LLWearableData::getWearable(const LLWearableType::EType type, U32 index)
+{
+	wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
+	if (wearable_iter == mWearableDatas.end())
+	{
+		return NULL;
+	}
+	wearableentry_vec_t& wearable_vec = wearable_iter->second;
+	if (index>=wearable_vec.size())
+	{
+		return NULL;
+	}
+	else
+	{
+		return wearable_vec[index];
+	}
+}
+
+void LLWearableData::setWearable(const LLWearableType::EType type, U32 index, LLWearable *wearable)
+{
+	LLWearable *old_wearable = getWearable(type,index);
+	if (!old_wearable)
+	{
+		pushWearable(type,wearable);
+		return;
+	}
+	
+	wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
+	if (wearable_iter == mWearableDatas.end())
+	{
+		llwarns << "invalid type, type " << type << " index " << index << llendl; 
+		return;
+	}
+	wearableentry_vec_t& wearable_vec = wearable_iter->second;
+	if (index>=wearable_vec.size())
+	{
+		llwarns << "invalid index, type " << type << " index " << index << llendl; 
+	}
+	else
+	{
+		wearable_vec[index] = wearable;
+		old_wearable->setUpdated();
+		const BOOL removed = FALSE;
+		wearableUpdated(wearable, removed);
+	}
+}
+
+U32 LLWearableData::pushWearable(const LLWearableType::EType type, 
+								   LLWearable *wearable,
+								   bool trigger_updated /* = true */)
+{
+	if (wearable == NULL)
+	{
+		// no null wearables please!
+		llwarns << "Null wearable sent for type " << type << llendl;
+		return MAX_CLOTHING_PER_TYPE;
+	}
+	if (type < LLWearableType::WT_COUNT || mWearableDatas[type].size() < MAX_CLOTHING_PER_TYPE)
+	{
+		mWearableDatas[type].push_back(wearable);
+		if (trigger_updated)
+		{
+			const BOOL removed = FALSE;
+			wearableUpdated(wearable, removed);
+		}
+		return mWearableDatas[type].size()-1;
+	}
+	return MAX_CLOTHING_PER_TYPE;
+}
+
+// virtual
+void LLWearableData::wearableUpdated(LLWearable *wearable, BOOL removed)
+{
+	wearable->setUpdated();
+	if (!removed)
+	{
+		pullCrossWearableValues(wearable->getType());
+	}
+}
+
+void LLWearableData::popWearable(LLWearable *wearable)
+{
+	if (wearable == NULL)
+	{
+		// nothing to do here. move along.
+		return;
+	}
+
+	U32 index = getWearableIndex(wearable);
+	const LLWearableType::EType type = wearable->getType();
+
+	if (index < MAX_CLOTHING_PER_TYPE && index < getWearableCount(type))
+	{
+		popWearable(type, index);
+	}
+}
+
+void LLWearableData::popWearable(const LLWearableType::EType type, U32 index)
+{
+	LLWearable *wearable = getWearable(type, index);
+	if (wearable)
+	{
+		mWearableDatas[type].erase(mWearableDatas[type].begin() + index);
+		const BOOL removed = TRUE;
+		wearableUpdated(wearable, removed);
+	}
+}
+
+void LLWearableData::clearWearableType(const LLWearableType::EType type)
+{
+	wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
+	if (wearable_iter == mWearableDatas.end())
+	{
+		return;
+	}
+	wearableentry_vec_t& wearable_vec = wearable_iter->second;
+	wearable_vec.clear();
+}
+
+bool LLWearableData::swapWearables(const LLWearableType::EType type, U32 index_a, U32 index_b)
+{
+	wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
+	if (wearable_iter == mWearableDatas.end())
+	{
+		return false;
+	}
+
+	wearableentry_vec_t& wearable_vec = wearable_iter->second;
+	if (0 > index_a || index_a >= wearable_vec.size()) return false;
+	if (0 > index_b || index_b >= wearable_vec.size()) return false;
+
+	LLWearable* wearable = wearable_vec[index_a];
+	wearable_vec[index_a] = wearable_vec[index_b];
+	wearable_vec[index_b] = wearable;
+	return true;
+}
+
+void LLWearableData::pullCrossWearableValues(const LLWearableType::EType type)
+{
+	llassert(mAvatarAppearance);
+	// scan through all of the avatar's visual parameters
+	for (LLViewerVisualParam* param = (LLViewerVisualParam*) mAvatarAppearance->getFirstVisualParam(); 
+		 param;
+		 param = (LLViewerVisualParam*) mAvatarAppearance->getNextVisualParam())
+	{
+		if( param )
+		{
+			LLDriverParam *driver_param = dynamic_cast<LLDriverParam*>(param);
+			if(driver_param)
+			{
+				// parameter is a driver parameter, have it update its cross-driven params
+				driver_param->updateCrossDrivenParams(type);
+			}
+		}
+	}
+}
+
+
+U32	LLWearableData::getWearableIndex(const LLWearable *wearable) const
+{
+	if (wearable == NULL)
+	{
+		return MAX_CLOTHING_PER_TYPE;
+	}
+
+	const LLWearableType::EType type = wearable->getType();
+	wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
+	if (wearable_iter == mWearableDatas.end())
+	{
+		llwarns << "tried to get wearable index with an invalid type!" << llendl;
+		return MAX_CLOTHING_PER_TYPE;
+	}
+	const wearableentry_vec_t& wearable_vec = wearable_iter->second;
+	for(U32 index = 0; index < wearable_vec.size(); index++)
+	{
+		if (wearable_vec[index] == wearable)
+		{
+			return index;
+		}
+	}
+
+	return MAX_CLOTHING_PER_TYPE;
+}
+
+BOOL LLWearableData::isOnTop(LLWearable* wearable) const
+{
+	if (!wearable) return FALSE;
+	const LLWearableType::EType type = wearable->getType();
+	return ( getTopWearable(type) == wearable );
+}
+
+const LLWearable* LLWearableData::getWearable(const LLWearableType::EType type, U32 index) const
+{
+	wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
+	if (wearable_iter == mWearableDatas.end())
+	{
+		return NULL;
+	}
+	const wearableentry_vec_t& wearable_vec = wearable_iter->second;
+	if (index>=wearable_vec.size())
+	{
+		return NULL;
+	}
+	else
+	{
+		return wearable_vec[index];
+	}
+}
+
+LLWearable* LLWearableData::getTopWearable(const LLWearableType::EType type)
+{
+	U32 count = getWearableCount(type);
+	if ( count == 0)
+	{
+		return NULL;
+	}
+
+	return getWearable(type, count-1);
+}
+
+const LLWearable* LLWearableData::getTopWearable(const LLWearableType::EType type) const
+{
+	U32 count = getWearableCount(type);
+	if ( count == 0)
+	{
+		return NULL;
+	}
+
+	return getWearable(type, count-1);
+}
+
+LLWearable* LLWearableData::getBottomWearable(const LLWearableType::EType type)
+{
+	if (getWearableCount(type) == 0)
+	{
+		return NULL;
+	}
+
+	return getWearable(type, 0);
+}
+
+const LLWearable* LLWearableData::getBottomWearable(const LLWearableType::EType type) const
+{
+	if (getWearableCount(type) == 0)
+	{
+		return NULL;
+	}
+
+	return getWearable(type, 0);
+}
+
+U32 LLWearableData::getWearableCount(const LLWearableType::EType type) const
+{
+	wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
+	if (wearable_iter == mWearableDatas.end())
+	{
+		return 0;
+	}
+	const wearableentry_vec_t& wearable_vec = wearable_iter->second;
+	return wearable_vec.size();
+}
+
+U32 LLWearableData::getWearableCount(const U32 tex_index) const
+{
+	const LLWearableType::EType wearable_type = LLAvatarAppearanceDictionary::getTEWearableType((LLAvatarAppearanceDefines::ETextureIndex)tex_index);
+	return getWearableCount(wearable_type);
+}
+
+LLUUID LLWearableData::computeBakedTextureHash(LLAvatarAppearanceDefines::EBakedTextureIndex baked_index,
+												 BOOL generate_valid_hash) // Set to false if you want to upload the baked texture w/o putting it in the cache
+{
+	LLUUID hash_id;
+	bool hash_computed = false;
+	LLMD5 hash;
+	const LLAvatarAppearanceDictionary::BakedEntry *baked_dict = LLAvatarAppearanceDictionary::getInstance()->getBakedTexture(baked_index);
+
+	for (U8 i=0; i < baked_dict->mWearables.size(); i++)
+	{
+		const LLWearableType::EType baked_type = baked_dict->mWearables[i];
+		const U32 num_wearables = getWearableCount(baked_type);
+		for (U32 index = 0; index < num_wearables; ++index)
+		{
+			const LLWearable* wearable = getWearable(baked_type,index);
+			if (wearable)
+			{
+				wearable->addToBakedTextureHash(hash);
+				hash_computed = true;
+			}
+		}
+	}
+	if (hash_computed)
+	{
+		hash.update((const unsigned char*)baked_dict->mWearablesHashID.mData, UUID_BYTES);
+
+		if (!generate_valid_hash)
+		{
+			invalidateBakedTextureHash(hash);
+		}
+		hash.finalize();
+		hash.raw_digest(hash_id.mData);
+	}
+
+	return hash_id;
+}
+
+
diff --git a/indra/llappearance/llwearabledata.h b/indra/llappearance/llwearabledata.h
new file mode 100644
index 0000000000..2931424131
--- /dev/null
+++ b/indra/llappearance/llwearabledata.h
@@ -0,0 +1,108 @@
+/** 
+ * @file llwearabledata.h
+ * @brief LLWearableData class header file
+ *
+ * $LicenseInfo:firstyear=20012license=viewerlgpl$
+ * 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_WEARABLEDATA_H
+#define LL_WEARABLEDATA_H
+
+#include "llavatarappearancedefines.h"
+#include "llerror.h"
+
+class LLAvatarAppearance;
+
+class LLWearableData
+{
+	// *TODO: Figure out why this is causing compile error.
+	//LOG_CLASS(LLWearableData);
+
+	//--------------------------------------------------------------------
+	// Constructors / destructors / Initializers
+	//--------------------------------------------------------------------
+public:
+	LLWearableData();
+	virtual ~LLWearableData();
+
+	void setAvatarAppearance(LLAvatarAppearance* appearance) { mAvatarAppearance = appearance; }
+
+protected:
+	//--------------------------------------------------------------------
+	// Accessors
+	//--------------------------------------------------------------------
+public:
+	LLWearable*			getWearable(const LLWearableType::EType type, U32 index /*= 0*/); 
+	const LLWearable* 	getWearable(const LLWearableType::EType type, U32 index /*= 0*/) const;
+	LLWearable*			getTopWearable(const LLWearableType::EType type);
+	const LLWearable*	getTopWearable(const LLWearableType::EType type) const;
+	LLWearable*			getBottomWearable(const LLWearableType::EType type);
+	const LLWearable*	getBottomWearable(const LLWearableType::EType type) const;
+	U32				getWearableCount(const LLWearableType::EType type) const;
+	U32				getWearableCount(const U32 tex_index) const;
+	U32				getWearableIndex(const LLWearable *wearable) const;
+
+	BOOL			isOnTop(LLWearable* wearable) const;
+
+	static const U32 MAX_CLOTHING_PER_TYPE = 5; 
+
+	//--------------------------------------------------------------------
+	// Setters
+	//--------------------------------------------------------------------
+protected:
+	// Low-level data structure setter - public access is via setWearableItem, etc.
+	void 			setWearable(const LLWearableType::EType type, U32 index, LLWearable *wearable);
+	U32 			pushWearable(const LLWearableType::EType type, LLWearable *wearable, 
+								 bool trigger_updated = true);
+	virtual void	wearableUpdated(LLWearable *wearable, BOOL removed);
+	void 			popWearable(LLWearable *wearable);
+	void			popWearable(const LLWearableType::EType type, U32 index);
+	void			clearWearableType(const LLWearableType::EType type);
+	bool			swapWearables(const LLWearableType::EType type, U32 index_a, U32 index_b);
+
+private:
+	void			pullCrossWearableValues(const LLWearableType::EType type);
+
+	//--------------------------------------------------------------------
+	// Server Communication
+	//--------------------------------------------------------------------
+public:
+	LLUUID			computeBakedTextureHash(LLAvatarAppearanceDefines::EBakedTextureIndex baked_index,
+											BOOL generate_valid_hash = TRUE);
+protected:
+	virtual void	invalidateBakedTextureHash(LLMD5& hash) const {}
+
+	//--------------------------------------------------------------------
+	// Member variables
+	//--------------------------------------------------------------------
+private:
+	LLAvatarAppearance* mAvatarAppearance;
+	typedef std::vector<LLWearable*> wearableentry_vec_t; // all wearables of a certain type (EG all shirts)
+	typedef std::map<LLWearableType::EType, wearableentry_vec_t> wearableentry_map_t;	// wearable "categories" arranged by wearable type
+	wearableentry_map_t mWearableDatas;
+
+};
+
+
+
+#endif // LL_WEARABLEDATA_H
+
diff --git a/indra/llcharacter/llcharacter.cpp b/indra/llcharacter/llcharacter.cpp
index 0a6a8f9fa6..85cf1cd3f5 100644
--- a/indra/llcharacter/llcharacter.cpp
+++ b/indra/llcharacter/llcharacter.cpp
@@ -286,7 +286,7 @@ void LLCharacter::removeAnimationData(std::string name)
 //-----------------------------------------------------------------------------
 // setVisualParamWeight()
 //-----------------------------------------------------------------------------
-BOOL LLCharacter::setVisualParamWeight(LLVisualParam* which_param, F32 weight, BOOL upload_bake)
+BOOL LLCharacter::setVisualParamWeight(const LLVisualParam* which_param, F32 weight, BOOL upload_bake)
 {
 	S32 index = which_param->getID();
 	visual_param_index_map_t::iterator index_iter = mVisualParamIndexMap.find(index);
diff --git a/indra/llcharacter/llcharacter.h b/indra/llcharacter/llcharacter.h
index 3ebb2bffb0..2f2b2405b6 100644
--- a/indra/llcharacter/llcharacter.h
+++ b/indra/llcharacter/llcharacter.h
@@ -197,7 +197,7 @@ public:
 	void addVisualParam(LLVisualParam *param);
 	void addSharedVisualParam(LLVisualParam *param);
 
-	virtual BOOL setVisualParamWeight(LLVisualParam *which_param, F32 weight, BOOL upload_bake = FALSE );
+	virtual BOOL setVisualParamWeight(const LLVisualParam *which_param, F32 weight, BOOL upload_bake = FALSE );
 	virtual BOOL setVisualParamWeight(const char* param_name, F32 weight, BOOL upload_bake = FALSE );
 	virtual BOOL setVisualParamWeight(S32 index, F32 weight, BOOL upload_bake = FALSE );
 
diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index 214071fa67..21b1512e58 100755
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -158,7 +158,6 @@ set(viewer_SOURCE_FILES
     lldrawpooltree.cpp
     lldrawpoolwater.cpp
     lldrawpoolwlsky.cpp
-    lldriverparam.cpp
     lldynamictexture.cpp
     llemote.cpp
     llenvmanager.cpp
@@ -728,7 +727,6 @@ set(viewer_HEADER_FILES
     lldrawpooltree.h
     lldrawpoolwater.h
     lldrawpoolwlsky.h
-    lldriverparam.h
     lldynamictexture.h
     llemote.h
     llenvmanager.h
diff --git a/indra/newview/llagentwearables.cpp b/indra/newview/llagentwearables.cpp
index 08238e1aea..40cedc1b35 100755
--- a/indra/newview/llagentwearables.cpp
+++ b/indra/newview/llagentwearables.cpp
@@ -119,7 +119,7 @@ void LLAgentWearables::dump()
 		llinfos << "Type: " << i << " count " << count << llendl;
 		for (U32 j=0; j<count; j++)
 		{
-			LLViewerWearable* wearable = getWearable((LLWearableType::EType)i,j);
+			LLViewerWearable* wearable = getViewerWearable((LLWearableType::EType)i,j);
 			if (wearable == NULL)
 			{
 				llinfos << "    " << j << " NULL wearable" << llendl;
@@ -159,6 +159,7 @@ struct LLAgentDumper
 };
 
 LLAgentWearables::LLAgentWearables() :
+	LLWearableData(),
 	mWearablesLoaded(FALSE)
 ,	mCOFChangeInProgress(false)
 {
@@ -182,12 +183,11 @@ void LLAgentWearables::initClass()
 }
 
 void LLAgentWearables::setAvatarObject(LLVOAvatarSelf *avatar)
-{ 
-	if (avatar)
-	{
-		avatar->outputRezTiming("Sending wearables request");
-		sendAgentWearablesRequest();
-	}
+{
+	llassert(avatar);
+	avatar->outputRezTiming("Sending wearables request");
+	sendAgentWearablesRequest();
+	setAvatarAppearance(avatar);
 }
 
 // wearables
@@ -312,7 +312,7 @@ void LLAgentWearables::sendAgentWearablesUpdate()
 	{
 		for (U32 index=0; index < getWearableCount((LLWearableType::EType)type); ++index)
 		{
-			LLViewerWearable* wearable = getWearable((LLWearableType::EType)type,index);
+			LLViewerWearable* wearable = getViewerWearable((LLWearableType::EType)type,index);
 			if (wearable)
 			{
 				if (wearable->getItemID().isNull())
@@ -354,7 +354,7 @@ void LLAgentWearables::sendAgentWearablesUpdate()
 		U8 type_u8 = (U8)type;
 		gMessageSystem->addU8Fast(_PREHASH_WearableType, type_u8);
 
-		LLViewerWearable* wearable = getWearable((LLWearableType::EType)type, 0);
+		LLViewerWearable* wearable = getViewerWearable((LLWearableType::EType)type, 0);
 		if (wearable)
 		{
 			//llinfos << "Sending wearable " << wearable->getName() << llendl;
@@ -382,7 +382,7 @@ void LLAgentWearables::sendAgentWearablesUpdate()
 void LLAgentWearables::saveWearable(const LLWearableType::EType type, const U32 index, BOOL send_update,
 									const std::string new_name)
 {
-	LLViewerWearable* old_wearable = getWearable(type, index);
+	LLViewerWearable* old_wearable = getViewerWearable(type, index);
 	if(!old_wearable) return;
 	bool name_changed = !new_name.empty() && (new_name != old_wearable->getName());
 	if (name_changed || old_wearable->isDirty() || old_wearable->isOldVersion())
@@ -465,7 +465,7 @@ void LLAgentWearables::saveWearableAs(const LLWearableType::EType type,
 		llwarns << "LLAgent::saveWearableAs() not copyable." << llendl;
 		return;
 	}
-	LLViewerWearable* old_wearable = getWearable(type, index);
+	LLViewerWearable* old_wearable = getViewerWearable(type, index);
 	if (!old_wearable)
 	{
 		llwarns << "LLAgent::saveWearableAs() no old wearable." << llendl;
@@ -518,7 +518,7 @@ void LLAgentWearables::saveWearableAs(const LLWearableType::EType type,
 
 void LLAgentWearables::revertWearable(const LLWearableType::EType type, const U32 index)
 {
-	LLViewerWearable* wearable = getWearable(type, index);
+	LLViewerWearable* wearable = getViewerWearable(type, index);
 	llassert(wearable);
 	if (wearable)
 	{
@@ -553,7 +553,7 @@ void LLAgentWearables::setWearableName(const LLUUID& item_id, const std::string&
 			LLUUID curr_item_id = getWearableItemID((LLWearableType::EType)i,j);
 			if (curr_item_id == item_id)
 			{
-				LLViewerWearable* old_wearable = getWearable((LLWearableType::EType)i,j);
+				LLViewerWearable* old_wearable = getViewerWearable((LLWearableType::EType)i,j);
 				llassert(old_wearable);
 				if (!old_wearable) continue;
 
@@ -647,7 +647,7 @@ const LLViewerWearable* LLAgentWearables::getWearableFromItemID(const LLUUID& it
 	{
 		for (U32 j=0; j < getWearableCount((LLWearableType::EType)i); j++)
 		{
-			const LLViewerWearable * curr_wearable = getWearable((LLWearableType::EType)i, j);
+			const LLViewerWearable * curr_wearable = getViewerWearable((LLWearableType::EType)i, j);
 			if (curr_wearable && (curr_wearable->getItemID() == base_item_id))
 			{
 				return curr_wearable;
@@ -664,7 +664,7 @@ LLViewerWearable* LLAgentWearables::getWearableFromItemID(const LLUUID& item_id)
 	{
 		for (U32 j=0; j < getWearableCount((LLWearableType::EType)i); j++)
 		{
-			LLViewerWearable * curr_wearable = getWearable((LLWearableType::EType)i, j);
+			LLViewerWearable * curr_wearable = getViewerWearable((LLWearableType::EType)i, j);
 			if (curr_wearable && (curr_wearable->getItemID() == base_item_id))
 			{
 				return curr_wearable;
@@ -680,7 +680,7 @@ LLViewerWearable*	LLAgentWearables::getWearableFromAssetID(const LLUUID& asset_i
 	{
 		for (U32 j=0; j < getWearableCount((LLWearableType::EType)i); j++)
 		{
-			LLViewerWearable * curr_wearable = getWearable((LLWearableType::EType)i, j);
+			LLViewerWearable * curr_wearable = getViewerWearable((LLWearableType::EType)i, j);
 			if (curr_wearable && (curr_wearable->getAssetID() == asset_id))
 			{
 				return curr_wearable;
@@ -699,215 +699,55 @@ void LLAgentWearables::sendAgentWearablesRequest()
 	gAgent.sendReliableMessage();
 }
 
-// static
-BOOL LLAgentWearables::selfHasWearable(LLWearableType::EType type)
+LLViewerWearable* LLAgentWearables::getViewerWearable(const LLWearableType::EType type, U32 index /*= 0*/)
 {
-	return (gAgentWearables.getWearableCount(type) > 0);
+	return dynamic_cast<LLViewerWearable*> (getWearable(type, index));
 }
 
-LLViewerWearable* LLAgentWearables::getWearable(const LLWearableType::EType type, U32 index)
+const LLViewerWearable* LLAgentWearables::getViewerWearable(const LLWearableType::EType type, U32 index /*= 0*/) const
 {
-	wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
-	if (wearable_iter == mWearableDatas.end())
-	{
-		return NULL;
-	}
-	wearableentry_vec_t& wearable_vec = wearable_iter->second;
-	if (index>=wearable_vec.size())
-	{
-		return NULL;
-	}
-	else
-	{
-		return wearable_vec[index];
-	}
+	return dynamic_cast<const LLViewerWearable*> (getWearable(type, index));
 }
 
-void LLAgentWearables::setWearable(const LLWearableType::EType type, U32 index, LLViewerWearable *wearable)
-{
-
-	LLViewerWearable *old_wearable = getWearable(type,index);
-	if (!old_wearable)
-	{
-		pushWearable(type,wearable);
-		return;
-	}
-	
-	wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
-	if (wearable_iter == mWearableDatas.end())
-	{
-		llwarns << "invalid type, type " << type << " index " << index << llendl; 
-		return;
-	}
-	wearableentry_vec_t& wearable_vec = wearable_iter->second;
-	if (index>=wearable_vec.size())
-	{
-		llwarns << "invalid index, type " << type << " index " << index << llendl; 
-	}
-	else
-	{
-		wearable_vec[index] = wearable;
-		old_wearable->setLabelUpdated();
-		wearableUpdated(wearable);
-		checkWearableAgainstInventory(wearable);
-	}
-}
-
-U32 LLAgentWearables::pushWearable(const LLWearableType::EType type, LLViewerWearable *wearable)
-{
-	if (wearable == NULL)
-	{
-		// no null wearables please!
-		llwarns << "Null wearable sent for type " << type << llendl;
-		return MAX_CLOTHING_PER_TYPE;
-	}
-	if (type < LLWearableType::WT_COUNT || mWearableDatas[type].size() < MAX_CLOTHING_PER_TYPE)
-	{
-		mWearableDatas[type].push_back(wearable);
-		wearableUpdated(wearable);
-		checkWearableAgainstInventory(wearable);
-		return mWearableDatas[type].size()-1;
-	}
-	return MAX_CLOTHING_PER_TYPE;
-}
-
-void LLAgentWearables::wearableUpdated(LLViewerWearable *wearable)
+// static
+BOOL LLAgentWearables::selfHasWearable(LLWearableType::EType type)
 {
-	gAgentAvatarp->wearableUpdated(wearable->getType(), FALSE);
-	wearable->refreshName();
-	wearable->setLabelUpdated();
-
-	wearable->pullCrossWearableValues();
-
-	// Hack pt 2. If the wearable we just loaded has definition version 24,
-	// then force a re-save of this wearable after slamming the version number to 22.
-	// This number was incorrectly incremented for internal builds before release, and
-	// this fix will ensure that the affected wearables are re-saved with the right version number.
-	// the versions themselves are compatible. This code can be removed before release.
-	if( wearable->getDefinitionVersion() == 24 )
-	{
-		wearable->setDefinitionVersion(22);
-		U32 index = getWearableIndex(wearable);
-		llinfos << "forcing werable type " << wearable->getType() << " to version 22 from 24" << llendl;
-		saveWearable(wearable->getType(),index,TRUE);
-	}
-
+	return (gAgentWearables.getWearableCount(type) > 0);
 }
 
-void LLAgentWearables::popWearable(LLViewerWearable *wearable)
+// virtual
+void LLAgentWearables::wearableUpdated(LLWearable *wearable, BOOL removed)
 {
-	if (wearable == NULL)
-	{
-		// nothing to do here. move along.
-		return;
-	}
-
-	U32 index = getWearableIndex(wearable);
-	LLWearableType::EType type = wearable->getType();
-
-	if (index < MAX_CLOTHING_PER_TYPE && index < getWearableCount(type))
+	if (isAgentAvatarValid())
 	{
-		popWearable(type, index);
+		const BOOL upload_result = removed;
+		gAgentAvatarp->wearableUpdated(wearable->getType(), upload_result);
 	}
-}
 
-void LLAgentWearables::popWearable(const LLWearableType::EType type, U32 index)
-{
-	LLViewerWearable *wearable = getWearable(type, index);
-	if (wearable)
-	{
-		mWearableDatas[type].erase(mWearableDatas[type].begin() + index);
-		if (isAgentAvatarValid())
-		{
-		gAgentAvatarp->wearableUpdated(wearable->getType(), TRUE);
-		}
-		wearable->setLabelUpdated();
-	}
-}
+	LLWearableData::wearableUpdated(wearable, removed);
 
-U32	LLAgentWearables::getWearableIndex(const LLViewerWearable *wearable) const
-{
-	if (wearable == NULL)
+	if (!removed)
 	{
-		return MAX_CLOTHING_PER_TYPE;
-	}
+		LLViewerWearable* viewer_wearable = dynamic_cast<LLViewerWearable*>(wearable);
+		viewer_wearable->refreshName();
 
-	const LLWearableType::EType type = wearable->getType();
-	wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
-	if (wearable_iter == mWearableDatas.end())
-	{
-		llwarns << "tried to get wearable index with an invalid type!" << llendl;
-		return MAX_CLOTHING_PER_TYPE;
-	}
-	const wearableentry_vec_t& wearable_vec = wearable_iter->second;
-	for(U32 index = 0; index < wearable_vec.size(); index++)
-	{
-		if (wearable_vec[index] == wearable)
+		// Hack pt 2. If the wearable we just loaded has definition version 24,
+		// then force a re-save of this wearable after slamming the version number to 22.
+		// This number was incorrectly incremented for internal builds before release, and
+		// this fix will ensure that the affected wearables are re-saved with the right version number.
+		// the versions themselves are compatible. This code can be removed before release.
+		if( wearable->getDefinitionVersion() == 24 )
 		{
-			return index;
+			wearable->setDefinitionVersion(22);
+			U32 index = getWearableIndex(wearable);
+			llinfos << "forcing wearable type " << wearable->getType() << " to version 22 from 24" << llendl;
+			saveWearable(wearable->getType(),index,TRUE);
 		}
-	}
-
-	return MAX_CLOTHING_PER_TYPE;
-}
 
-const LLViewerWearable* LLAgentWearables::getWearable(const LLWearableType::EType type, U32 index) const
-{
-	wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
-	if (wearable_iter == mWearableDatas.end())
-	{
-		return NULL;
-	}
-	const wearableentry_vec_t& wearable_vec = wearable_iter->second;
-	if (index>=wearable_vec.size())
-	{
-		return NULL;
-	}
-	else
-	{
-		return wearable_vec[index];
+		checkWearableAgainstInventory(viewer_wearable);
 	}
 }
 
-LLViewerWearable* LLAgentWearables::getTopWearable(const LLWearableType::EType type)
-{
-	U32 count = getWearableCount(type);
-	if ( count == 0)
-	{
-		return NULL;
-	}
-
-	return getWearable(type, count-1);
-}
-
-LLViewerWearable* LLAgentWearables::getBottomWearable(const LLWearableType::EType type)
-{
-	if (getWearableCount(type) == 0)
-	{
-		return NULL;
-	}
-
-	return getWearable(type, 0);
-}
-
-U32 LLAgentWearables::getWearableCount(const LLWearableType::EType type) const
-{
-	wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
-	if (wearable_iter == mWearableDatas.end())
-	{
-		return 0;
-	}
-	const wearableentry_vec_t& wearable_vec = wearable_iter->second;
-	return wearable_vec.size();
-}
-
-U32 LLAgentWearables::getWearableCount(const U32 tex_index) const
-{
-	const LLWearableType::EType wearable_type = LLAvatarAppearanceDictionary::getTEWearableType((LLAvatarAppearanceDefines::ETextureIndex)tex_index);
-	return getWearableCount(wearable_type);
-}
-
-
 BOOL LLAgentWearables::itemUpdatePending(const LLUUID& item_id) const
 {
 	return mItemsAwaitingWearableUpdate.find(item_id) != mItemsAwaitingWearableUpdate.end();
@@ -920,7 +760,7 @@ U32 LLAgentWearables::itemUpdatePendingCount() const
 
 const LLUUID LLAgentWearables::getWearableItemID(LLWearableType::EType type, U32 index) const
 {
-	const LLViewerWearable *wearable = getWearable(type,index);
+	const LLViewerWearable *wearable = getViewerWearable(type,index);
 	if (wearable)
 		return wearable->getItemID();
 	else
@@ -929,7 +769,7 @@ const LLUUID LLAgentWearables::getWearableItemID(LLWearableType::EType type, U32
 
 const LLUUID LLAgentWearables::getWearableAssetID(LLWearableType::EType type, U32 index) const
 {
-	const LLViewerWearable *wearable = getWearable(type,index);
+	const LLViewerWearable *wearable = getViewerWearable(type,index);
 	if (wearable)
 		return wearable->getAssetID();
 	else
@@ -1095,7 +935,7 @@ void LLAgentWearables::recoverMissingWearableDone()
 
 void LLAgentWearables::addLocalTextureObject(const LLWearableType::EType wearable_type, const LLAvatarAppearanceDefines::ETextureIndex texture_type, U32 wearable_index)
 {
-	LLViewerWearable* wearable = getWearable((LLWearableType::EType)wearable_type, wearable_index);
+	LLViewerWearable* wearable = getViewerWearable((LLWearableType::EType)wearable_type, wearable_index);
 	if (!wearable)
 	{
 		llerrs << "Tried to add local texture object to invalid wearable with type " << wearable_type << " and index " << wearable_index << llendl;
@@ -1305,7 +1145,7 @@ void LLAgentWearables::removeWearable(const LLWearableType::EType type, bool do_
 	}
 	else
 	{
-		LLViewerWearable* old_wearable = getWearable(type,index);
+		LLViewerWearable* old_wearable = getViewerWearable(type,index);
 		
 		if (old_wearable)
 		{
@@ -1360,10 +1200,10 @@ void LLAgentWearables::removeWearableFinal(const LLWearableType::EType type, boo
 	//LLAgentDumper dumper("removeWearable");
 	if (do_remove_all)
 	{
-		S32 max_entry = mWearableDatas[type].size()-1;
+		S32 max_entry = getWearableCount(type)-1;
 		for (S32 i=max_entry; i>=0; i--)
 		{
-			LLViewerWearable* old_wearable = getWearable(type,i);
+			LLViewerWearable* old_wearable = getViewerWearable(type,i);
 			//queryWearableCache(); // moved below
 			if (old_wearable)
 			{
@@ -1371,11 +1211,11 @@ void LLAgentWearables::removeWearableFinal(const LLWearableType::EType type, boo
 				old_wearable->removeFromAvatar(TRUE);
 			}
 		}
-		mWearableDatas[type].clear();
+		clearWearableType(type);
 	}
 	else
 	{
-		LLViewerWearable* old_wearable = getWearable(type, index);
+		LLViewerWearable* old_wearable = getViewerWearable(type, index);
 		//queryWearableCache(); // moved below
 
 		if (old_wearable)
@@ -1439,8 +1279,8 @@ void LLAgentWearables::setWearableOutfit(const LLInventoryItem::item_array_t& it
 			{
 				pushWearable(type,new_wearable);
 			}
-			wearableUpdated(new_wearable);
-			checkWearableAgainstInventory(new_wearable);
+			const BOOL removed = FALSE;
+			wearableUpdated(new_wearable, removed);
 		}
 	}
 
@@ -1491,7 +1331,7 @@ void LLAgentWearables::setWearableItem(LLInventoryItem* new_item, LLViewerWearab
 	{
 		// Remove old wearable, if any
 		// MULTI_WEARABLE: hardwired to 0
-		LLViewerWearable* old_wearable = getWearable(type,0);
+		LLViewerWearable* old_wearable = getViewerWearable(type,0);
 		if (old_wearable)
 		{
 			const LLUUID& old_item_id = old_wearable->getItemID();
@@ -1560,9 +1400,10 @@ void LLAgentWearables::setWearableFinal(LLInventoryItem* new_item, LLViewerWeara
 	if (do_append && getWearableItemID(type,0).notNull())
 	{
 		new_wearable->setItemID(new_item->getUUID());
-		mWearableDatas[type].push_back(new_wearable);
+		const bool trigger_updated = false;
+		pushWearable(type, new_wearable, trigger_updated);
 		llinfos << "Added additional wearable for type " << type
-				<< " size is now " << mWearableDatas[type].size() << llendl;
+				<< " size is now " << getWearableCount(type) << llendl;
 		checkWearableAgainstInventory(new_wearable);
 	}
 	else
@@ -1570,7 +1411,7 @@ void LLAgentWearables::setWearableFinal(LLInventoryItem* new_item, LLViewerWeara
 		// Replace the old wearable with a new one.
 		llassert(new_item->getAssetUUID() == new_wearable->getAssetID());
 
-		LLViewerWearable *old_wearable = getWearable(type,0);
+		LLViewerWearable *old_wearable = getViewerWearable(type,0);
 		LLUUID old_item_id;
 		if (old_wearable)
 		{
@@ -1585,7 +1426,7 @@ void LLAgentWearables::setWearableFinal(LLInventoryItem* new_item, LLViewerWeara
 			gInventory.notifyObservers();
 		}
 		llinfos << "Replaced current element 0 for type " << type
-				<< " size is now " << mWearableDatas[type].size() << llendl;
+				<< " size is now " << getWearableCount(type) << llendl;
 	}
 
 	//llinfos << "LLVOAvatar::setWearableItem()" << llendl;
@@ -1652,46 +1493,14 @@ void LLAgentWearables::queryWearableCache()
 	}
 }
 
-LLUUID LLAgentWearables::computeBakedTextureHash(LLAvatarAppearanceDefines::EBakedTextureIndex baked_index,
-												 BOOL generate_valid_hash) // Set to false if you want to upload the baked texture w/o putting it in the cache
+// virtual
+void LLAgentWearables::invalidateBakedTextureHash(LLMD5& hash) const
 {
-	LLUUID hash_id;
-	bool hash_computed = false;
-	LLMD5 hash;
-	const LLAvatarAppearanceDictionary::BakedEntry *baked_dict = LLAvatarAppearanceDictionary::getInstance()->getBakedTexture(baked_index);
-
-	for (U8 i=0; i < baked_dict->mWearables.size(); i++)
-	{
-		const LLWearableType::EType baked_type = baked_dict->mWearables[i];
-		const U32 num_wearables = getWearableCount(baked_type);
-		for (U32 index = 0; index < num_wearables; ++index)
-		{
-			const LLViewerWearable* wearable = getWearable(baked_type,index);
-			if (wearable)
-			{
-				LLUUID asset_id = wearable->getAssetID();
-				hash.update((const unsigned char*)asset_id.mData, UUID_BYTES);
-				hash_computed = true;
-			}
-		}
-	}
-	if (hash_computed)
+	// Add some garbage into the hash so that it becomes invalid.
+	if (isAgentAvatarValid())
 	{
-		hash.update((const unsigned char*)baked_dict->mWearablesHashID.mData, UUID_BYTES);
-
-		// Add some garbage into the hash so that it becomes invalid.
-		if (!generate_valid_hash)
-		{
-			if (isAgentAvatarValid())
-			{
-				hash.update((const unsigned char*)gAgentAvatarp->getID().mData, UUID_BYTES);
-			}
-		}
-		hash.finalize();
-		hash.raw_digest(hash_id.mData);
+		hash.update((const unsigned char*)gAgentAvatarp->getID().mData, UUID_BYTES);
 	}
-
-	return hash_id;
 }
 
 // User has picked "remove from avatar" from a menu.
@@ -1875,13 +1684,13 @@ void LLAgentWearables::checkWearablesLoaded() const
 
 // Returns false if the given wearable is already topmost/bottommost
 // (depending on closer_to_body parameter).
-bool LLAgentWearables::canMoveWearable(const LLUUID& item_id, bool closer_to_body)
+bool LLAgentWearables::canMoveWearable(const LLUUID& item_id, bool closer_to_body) const
 {
-	const LLViewerWearable* wearable = getWearableFromItemID(item_id);
+	const LLWearable* wearable = getWearableFromItemID(item_id);
 	if (!wearable) return false;
 
 	LLWearableType::EType wtype = wearable->getType();
-	const LLViewerWearable* marginal_wearable = closer_to_body ? getBottomWearable(wtype) : getTopWearable(wtype);
+	const LLWearable* marginal_wearable = closer_to_body ? getBottomWearable(wtype) : getTopWearable(wtype);
 	if (!marginal_wearable) return false;
 
 	return wearable != marginal_wearable;
@@ -1918,7 +1727,7 @@ void LLAgentWearables::animateAllWearableParams(F32 delta, BOOL upload_bake)
 	{
 		for (S32 count = 0; count < (S32)getWearableCount((LLWearableType::EType)type); ++count)
 		{
-			LLViewerWearable *wearable = getWearable((LLWearableType::EType)type,count);
+			LLViewerWearable *wearable = getViewerWearable((LLWearableType::EType)type,count);
 			llassert(wearable);
 			if (wearable)
 			{
@@ -1933,28 +1742,39 @@ bool LLAgentWearables::moveWearable(const LLViewerInventoryItem* item, bool clos
 	if (!item) return false;
 	if (!item->isWearableType()) return false;
 
-	wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(item->getWearableType());
-	if (wearable_iter == mWearableDatas.end()) return false;
-
-	wearableentry_vec_t& wearable_vec = wearable_iter->second;
-	if (wearable_vec.empty()) return false;
+	LLWearableType::EType type = item->getWearableType();
+	U32 wearable_count = getWearableCount(type);
+	if (0 == wearable_count) return false;
 
 	const LLUUID& asset_id = item->getAssetUUID();
 
 	//nowhere to move if the wearable is already on any boundary (closest to the body/furthest from the body)
-	if (closer_to_body && asset_id == wearable_vec.front()->getAssetID()) return false;
-	if (!closer_to_body && asset_id == wearable_vec.back()->getAssetID()) return false;
+	if (closer_to_body)
+	{
+		LLViewerWearable* bottom_wearable = dynamic_cast<LLViewerWearable*>( getBottomWearable(type) );
+		if (bottom_wearable->getAssetID() == asset_id)
+		{
+			return false;
+		}
+	}
+	else // !closer_to_body
+	{
+		LLViewerWearable* top_wearable = dynamic_cast<LLViewerWearable*>( getTopWearable(type) );
+		if (top_wearable->getAssetID() == asset_id)
+		{
+			return false;
+		}
+	}
 
-	for (U32 i = 0; i < wearable_vec.size(); ++i)
+	for (U32 i = 0; i < wearable_count; ++i)
 	{
-		LLViewerWearable* wearable = wearable_vec[i];
+		LLViewerWearable* wearable = getViewerWearable(type, i);
 		if (!wearable) continue;
 		if (wearable->getAssetID() != asset_id) continue;
 		
 		//swapping wearables
 		U32 swap_i = closer_to_body ? i-1 : i+1;
-		wearable_vec[i] = wearable_vec[swap_i];
-		wearable_vec[swap_i] = wearable;
+		swapWearables(type, i, swap_i);
 		return true;
 	}
 
diff --git a/indra/newview/llagentwearables.h b/indra/newview/llagentwearables.h
index 41995dd55b..a60fbc969b 100755
--- a/indra/newview/llagentwearables.h
+++ b/indra/newview/llagentwearables.h
@@ -37,6 +37,7 @@
 #include "llinventorymodel.h"
 #include "llviewerinventory.h"
 #include "llavatarappearancedefines.h"
+#include "llwearabledata.h"
 
 class LLInventoryItem;
 class LLVOAvatarSelf;
@@ -44,7 +45,7 @@ class LLViewerWearable;
 class LLInitialWearablesFetch;
 class LLViewerObject;
 
-class LLAgentWearables : public LLInitClass<LLAgentWearables>
+class LLAgentWearables : public LLInitClass<LLAgentWearables>, public LLWearableData
 {
 	//--------------------------------------------------------------------
 	// Constructors / destructors / Initializers
@@ -78,7 +79,7 @@ public:
 	bool			isCOFChangeInProgress() const { return mCOFChangeInProgress; }
 	void			updateWearablesLoaded();
 	void			checkWearablesLoaded() const;
-	bool			canMoveWearable(const LLUUID& item_id, bool closer_to_body);
+	bool			canMoveWearable(const LLUUID& item_id, bool closer_to_body) const;
 	
 	// Note: False for shape, skin, eyes, and hair, unless you have MORE than 1.
 	bool			canWearableBeRemoved(const LLViewerWearable* wearable) const;
@@ -94,36 +95,22 @@ public:
 	const LLViewerWearable*	getWearableFromItemID(const LLUUID& item_id) const;
 	LLViewerWearable*	getWearableFromItemID(const LLUUID& item_id);
 	LLViewerWearable*	getWearableFromAssetID(const LLUUID& asset_id);
+	LLViewerWearable*		getViewerWearable(const LLWearableType::EType type, U32 index /*= 0*/); 
+	const LLViewerWearable*	getViewerWearable(const LLWearableType::EType type, U32 index /*= 0*/) const;
 	LLInventoryItem*	getWearableInventoryItem(LLWearableType::EType type, U32 index /*= 0*/);
 	static BOOL			selfHasWearable(LLWearableType::EType type);
-	LLViewerWearable*			getWearable(const LLWearableType::EType type, U32 index /*= 0*/); 
-	const LLViewerWearable* 	getWearable(const LLWearableType::EType type, U32 index /*= 0*/) const;
-	LLViewerWearable*		getTopWearable(const LLWearableType::EType type);
-	LLViewerWearable*		getBottomWearable(const LLWearableType::EType type);
-	U32				getWearableCount(const LLWearableType::EType type) const;
-	U32				getWearableCount(const U32 tex_index) const;
-
-	static const U32 MAX_CLOTHING_PER_TYPE = 5; 
-
 
 	//--------------------------------------------------------------------
 	// Setters
 	//--------------------------------------------------------------------
-
 private:
-	// Low-level data structure setter - public access is via setWearableItem, etc.
-	void 			setWearable(const LLWearableType::EType type, U32 index, LLViewerWearable *wearable);
-	U32 			pushWearable(const LLWearableType::EType type, LLViewerWearable *wearable);
-	void			wearableUpdated(LLViewerWearable *wearable);
-	void 			popWearable(LLViewerWearable *wearable);
-	void			popWearable(const LLWearableType::EType type, U32 index);
-	
+	/*virtual*/void	wearableUpdated(LLWearable *wearable, BOOL removed);
 public:
 	void			setWearableItem(LLInventoryItem* new_item, LLViewerWearable* wearable, bool do_append = false);
 	void			setWearableOutfit(const LLInventoryItem::item_array_t& items, const LLDynamicArray< LLViewerWearable* >& wearables, BOOL remove);
 	void			setWearableName(const LLUUID& item_id, const std::string& new_name);
+	// *TODO: Move this into llappearance/LLWearableData ?
 	void			addLocalTextureObject(const LLWearableType::EType wearable_type, const LLAvatarAppearanceDefines::ETextureIndex texture_type, U32 wearable_index);
-	U32				getWearableIndex(const LLViewerWearable *wearable) const;
 
 protected:
 	void			setWearableFinal(LLInventoryItem* new_item, LLViewerWearable* new_wearable, bool do_append = false);
@@ -171,10 +158,9 @@ protected:
 public:
 	// Processes the initial wearables update message (if necessary, since the outfit folder makes it redundant)
 	static void		processAgentInitialWearablesUpdate(LLMessageSystem* mesgsys, void** user_data);
-	LLUUID			computeBakedTextureHash(LLAvatarAppearanceDefines::EBakedTextureIndex baked_index,
-											BOOL generate_valid_hash = TRUE);
 
 protected:
+	/*virtual*/ void	invalidateBakedTextureHash(LLMD5& hash) const;
 	void			sendAgentWearablesUpdate();
 	void			sendAgentWearablesRequest();
 	void			queryWearableCache();
@@ -243,10 +229,6 @@ private:
 	// Member variables
 	//--------------------------------------------------------------------
 private:
-	typedef std::vector<LLViewerWearable*> wearableentry_vec_t; // all wearables of a certain type (EG all shirts)
-	typedef std::map<LLWearableType::EType, wearableentry_vec_t> wearableentry_map_t;	// wearable "categories" arranged by wearable type
-	wearableentry_map_t mWearableDatas;
-
 	static BOOL		mInitialWearablesUpdateReceived;
 	BOOL			mWearablesLoaded;
 	std::set<LLUUID>	mItemsAwaitingWearableUpdate;
diff --git a/indra/newview/llfloateravatartextures.cpp b/indra/newview/llfloateravatartextures.cpp
index 68bdf9a8d6..048837acfe 100644
--- a/indra/newview/llfloateravatartextures.cpp
+++ b/indra/newview/llfloateravatartextures.cpp
@@ -82,7 +82,7 @@ static void update_texture_ctrl(LLVOAvatar* avatarp,
 		if (avatarp->isSelf())
 		{
 			const LLWearableType::EType wearable_type = tex_entry->mWearableType;
-			LLViewerWearable *wearable = gAgentWearables.getWearable(wearable_type, 0);
+			LLViewerWearable *wearable = gAgentWearables.getViewerWearable(wearable_type, 0);
 			if (wearable)
 			{
 				LLLocalTextureObject *lto = wearable->getLocalTextureObject(te);
@@ -174,7 +174,7 @@ void LLFloaterAvatarTextures::onClickDump(void* data)
 				LLWearableType::EType wearable_type = LLAvatarAppearanceDictionary::getInstance()->getTEWearableType((ETextureIndex)i);
 				if (avatarp->isSelf())
 				{
-					LLViewerWearable *wearable = gAgentWearables.getWearable(wearable_type, 0);
+					LLViewerWearable *wearable = gAgentWearables.getViewerWearable(wearable_type, 0);
 					if (wearable)
 					{
 						LLLocalTextureObject *lto = wearable->getLocalTextureObject(i);
diff --git a/indra/newview/lllocalbitmaps.cpp b/indra/newview/lllocalbitmaps.cpp
index 3a199135b6..834172f58f 100644
--- a/indra/newview/lllocalbitmaps.cpp
+++ b/indra/newview/lllocalbitmaps.cpp
@@ -483,7 +483,7 @@ void LLLocalBitmap::updateUserLayers(LLUUID old_id, LLUUID new_id, LLWearableTyp
 	U32 count = gAgentWearables.getWearableCount(type);
 	for(U32 wearable_iter = 0; wearable_iter < count; wearable_iter++)
 	{
-		LLViewerWearable* wearable = gAgentWearables.getWearable(type, wearable_iter);
+		LLViewerWearable* wearable = gAgentWearables.getViewerWearable(type, wearable_iter);
 		if (wearable)
 		{
 			std::vector<LLLocalTextureObject*> texture_list = wearable->getLocalTextureListSeq();
diff --git a/indra/newview/llpaneleditwearable.cpp b/indra/newview/llpaneleditwearable.cpp
index 9aadca1d80..43bb1f57e0 100644
--- a/indra/newview/llpaneleditwearable.cpp
+++ b/indra/newview/llpaneleditwearable.cpp
@@ -922,7 +922,7 @@ void LLPanelEditWearable::onCommitSexChange()
         }
 
         bool is_new_sex_male = (gSavedSettings.getU32("AvatarSex") ? SEX_MALE : SEX_FEMALE) == SEX_MALE;
-        LLViewerWearable*     wearable = gAgentWearables.getWearable(type, index);
+        LLViewerWearable*     wearable = gAgentWearables.getViewerWearable(type, index);
         if (wearable)
         {
                 wearable->setVisualParamWeight(param->getID(), is_new_sex_male, FALSE);
diff --git a/indra/newview/llphysicsmotion.cpp b/indra/newview/llphysicsmotion.cpp
index cb6989c9dd..ded7d66022 100644
--- a/indra/newview/llphysicsmotion.cpp
+++ b/indra/newview/llphysicsmotion.cpp
@@ -166,7 +166,7 @@ protected:
 		}
 
         
-        void setParamValue(LLViewerVisualParam *param,
+        void setParamValue(const LLViewerVisualParam *param,
                            const F32 new_value_local,
                                                    F32 behavior_maxeffect);
 
@@ -673,12 +673,10 @@ BOOL LLPhysicsMotion::onUpdate(F32 time)
 								 0,
 								 FALSE);
 			}
-			for (LLDriverParam::entry_list_t::iterator iter = driver_param->mDriven.begin();
-			     iter != driver_param->mDriven.end();
-			     ++iter)
+			S32 num_driven = driver_param->getDrivenParamsCount();
+			for (S32 i = 0; i < num_driven; ++i)
 			{
-				LLDrivenEntry &entry = (*iter);
-				LLViewerVisualParam *driven_param = entry.mParam;
+				const LLViewerVisualParam *driven_param = driver_param->getDrivenParam(i);
 				setParamValue(driven_param,position_new_local_clamped, behavior_maxeffect);
 			}
 		}
@@ -758,7 +756,7 @@ BOOL LLPhysicsMotion::onUpdate(F32 time)
 }
 
 // Range of new_value_local is assumed to be [0 , 1] normalized.
-void LLPhysicsMotion::setParamValue(LLViewerVisualParam *param,
+void LLPhysicsMotion::setParamValue(const LLViewerVisualParam *param,
                                     F32 new_value_normalized,
 				    F32 behavior_maxeffect)
 {
diff --git a/indra/newview/llsidepanelappearance.cpp b/indra/newview/llsidepanelappearance.cpp
index 6a692209e9..8c4a05b116 100644
--- a/indra/newview/llsidepanelappearance.cpp
+++ b/indra/newview/llsidepanelappearance.cpp
@@ -389,7 +389,7 @@ void LLSidepanelAppearance::toggleWearableEditPanel(BOOL visible, LLViewerWearab
 
 	if (!wearable)
 	{
-		wearable = gAgentWearables.getWearable(LLWearableType::WT_SHAPE, 0);
+		wearable = gAgentWearables.getViewerWearable(LLWearableType::WT_SHAPE, 0);
 	}
 	if (!wearable)
 	{
diff --git a/indra/newview/llviewerwearable.cpp b/indra/newview/llviewerwearable.cpp
index 34f24ef330..eb3a212eae 100644
--- a/indra/newview/llviewerwearable.cpp
+++ b/indra/newview/llviewerwearable.cpp
@@ -632,11 +632,6 @@ void LLViewerWearable::revertValues()
 	}
 }
 
-BOOL LLViewerWearable::isOnTop() const
-{ 
-	return (this == gAgentWearables.getTopWearable(mType));
-}
-
 void LLViewerWearable::createLayers(S32 te)
 {
 	LLViewerTexLayerSet *layer_set = gAgentAvatarp->getLayerSet((ETextureIndex)te);
@@ -736,27 +731,8 @@ void LLViewerWearable::destroyTextures()
 	mSavedTEMap.clear();
 }
 
-void LLViewerWearable::pullCrossWearableValues()
-{
-	// scan through all of the avatar's visual parameters
-	for (LLViewerVisualParam* param = (LLViewerVisualParam*) gAgentAvatarp->getFirstVisualParam(); 
-		 param;
-		 param = (LLViewerVisualParam*) gAgentAvatarp->getNextVisualParam())
-	{
-		if( param )
-		{
-			LLDriverParam *driver_param = dynamic_cast<LLDriverParam*>(param);
-			if(driver_param)
-			{
-				// parameter is a driver parameter, have it update its 
-				driver_param->updateCrossDrivenParams(getType());
-			}
-		}
-	}
-}
-
-
-void LLViewerWearable::setLabelUpdated() const
+// virtual
+void LLViewerWearable::setUpdated() const
 { 
 	gInventory.addChangedMask(LLInventoryObserver::LABEL, getItemID());
 }
@@ -771,6 +747,13 @@ void LLViewerWearable::refreshName()
 	}
 }
 
+// virtual
+void LLViewerWearable::addToBakedTextureHash(LLMD5& hash) const
+{
+	LLUUID asset_id = getAssetID();
+	hash.update((const unsigned char*)asset_id.mData, UUID_BYTES);
+}
+
 struct LLWearableSaveData
 {
 	LLWearableType::EType mType;
diff --git a/indra/newview/llviewerwearable.h b/indra/newview/llviewerwearable.h
index ccc26000f2..b3c1e3c3ba 100644
--- a/indra/newview/llviewerwearable.h
+++ b/indra/newview/llviewerwearable.h
@@ -86,17 +86,17 @@ public:
 
 	void				revertValues();
 	void				saveValues();
-	void				pullCrossWearableValues();		
-
-	BOOL				isOnTop() const;
 
 	// Something happened that requires the wearable's label to be updated (e.g. worn/unworn).
-	void				setLabelUpdated() const;
+	/*virtual*/void		setUpdated() const;
 
 	// the wearable was worn. make sure the name of the wearable object matches the LLViewerInventoryItem,
 	// not the wearable asset itself.
 	void				refreshName();
 
+	// Update the baked texture hash.
+	/*virtual*/void		addToBakedTextureHash(LLMD5& hash) const;
+
 protected:
 	typedef std::map<S32, LLLocalTextureObject*> te_map_t;
 
diff --git a/indra/newview/llvoavatar.cpp b/indra/newview/llvoavatar.cpp
index b86c5d5e8f..2309ea3488 100755
--- a/indra/newview/llvoavatar.cpp
+++ b/indra/newview/llvoavatar.cpp
@@ -644,7 +644,7 @@ static F32 calc_bouncy_animation(F32 x);
 LLVOAvatar::LLVOAvatar(const LLUUID& id,
 					   const LLPCode pcode,
 					   LLViewerRegion* regionp) :
-	LLAvatarAppearance(),
+	LLAvatarAppearance(&gAgentWearables),
 	LLViewerObject(id, pcode, regionp),
 	mSpecialRenderMode(0),
 	mAttachmentGeometryBytes(0),
@@ -5860,30 +5860,6 @@ void LLVOAvatar::updateVisualParams()
 	updateHeadOffset();
 }
 
-// virtual
-U32 LLVOAvatar::getWearableCount(const LLWearableType::EType type) const
-{
-	return gAgentWearables.getWearableCount(type);
-}
-
-// virtual
-U32 LLVOAvatar::getWearableCount(const U32 tex_index) const
-{
-	return gAgentWearables.getWearableCount(tex_index);
-}
-
-// virtual
-LLWearable* LLVOAvatar::getWearable(const LLWearableType::EType type, U32 index /*= 0*/)
-{
-	return gAgentWearables.getWearable(type, index);
-}
-
-// virtual
-const LLWearable* LLVOAvatar::getWearable(const LLWearableType::EType type, U32 index /*= 0*/) const
-{
-	return gAgentWearables.getWearable(type, index);
-}
-
 //-----------------------------------------------------------------------------
 // isActive()
 //-----------------------------------------------------------------------------
@@ -7008,48 +6984,6 @@ void LLVOAvatar::dumpAvatarTEs( const std::string& context ) const
 	}
 }
 
-// Unlike most wearable functions, this works for both self and other.
-BOOL LLVOAvatar::isWearingWearableType(LLWearableType::EType type) const
-{
-	if (mIsDummy) return TRUE;
-
-	switch(type)
-	{
-		case LLWearableType::WT_SHAPE:
-		case LLWearableType::WT_SKIN:
-		case LLWearableType::WT_HAIR:
-		case LLWearableType::WT_EYES:
-			return TRUE;  // everyone has all bodyparts
-		default:
-			break; // Do nothing
-	}
-
-	/* switch(type)
-		case LLWearableType::WT_SHIRT:
-			indicator_te = TEX_UPPER_SHIRT; */
-	for (LLAvatarAppearanceDictionary::Textures::const_iterator tex_iter = LLAvatarAppearanceDictionary::getInstance()->getTextures().begin();
-		 tex_iter != LLAvatarAppearanceDictionary::getInstance()->getTextures().end();
-		 ++tex_iter)
-	{
-		const LLAvatarAppearanceDictionary::TextureEntry *texture_dict = tex_iter->second;
-		if (texture_dict->mWearableType == type)
-		{
-			// If you're checking another avatar's clothing, you don't have component textures.
-			// Thus, you must check to see if the corresponding baked texture is defined.
-			// NOTE: this is a poor substitute if you actually want to know about individual pieces of clothing
-			// this works for detecting a skirt (most important), but is ineffective at any piece of clothing that
-			// gets baked into a texture that always exists (upper or lower).
-			if (texture_dict->mIsUsedByBakedTexture)
-			{
-				const EBakedTextureIndex baked_index = texture_dict->mBakedTextureIndex;
-				return isTextureDefined(LLAvatarAppearanceDictionary::getInstance()->getBakedTexture(baked_index)->mTextureIndex);
-			}
-			return FALSE;
-		}
-	}
-	return FALSE;
-}
-
 //-----------------------------------------------------------------------------
 // clampAttachmentPositions()
 //-----------------------------------------------------------------------------
diff --git a/indra/newview/llvoavatar.h b/indra/newview/llvoavatar.h
index 5f780da145..54719d2671 100755
--- a/indra/newview/llvoavatar.h
+++ b/indra/newview/llvoavatar.h
@@ -227,17 +227,6 @@ public:
 	/*virtual*/BOOL	isUsingBakedTextures() const { return mUseServerBakes; } // e.g. false if in appearance edit mode		
 	bool isBuilt() const { return mIsBuilt; }
 
-/********************************************************************************
- **                                                                            **
- **                    WEARABLES
- **/
-public:
-	/*virtual*/ U32				getWearableCount(const LLWearableType::EType type) const;
-	/*virtual*/ U32				getWearableCount(const U32 tex_index) const;
-
-	/*virtual*/ LLWearable*			getWearable(const LLWearableType::EType type, U32 index /*= 0*/);
-	/*virtual*/ const LLWearable* 	getWearable(const LLWearableType::EType type, U32 index /*= 0*/) const;
-
 private: //aligned members
 	LL_ALIGN_16(LLVector4a	mImpostorExtents[2]);
 
@@ -755,9 +744,6 @@ public:
  **                    WEARABLES
  **/
 
-public:
-	virtual BOOL			isWearingWearableType(LLWearableType::EType type ) const;
-	
 	//--------------------------------------------------------------------
 	// Attachments
 	//--------------------------------------------------------------------
diff --git a/indra/newview/llvoavatarself.cpp b/indra/newview/llvoavatarself.cpp
index e836a5e4a8..c1984fa738 100755
--- a/indra/newview/llvoavatarself.cpp
+++ b/indra/newview/llvoavatarself.cpp
@@ -74,9 +74,7 @@ LLPointer<LLVOAvatarSelf> gAgentAvatarp = NULL;
 
 BOOL isAgentAvatarValid()
 {
-	return (gAgentAvatarp.notNull() &&
-			(gAgentAvatarp->getRegion() != NULL) &&
-			(!gAgentAvatarp->isDead()));
+	return (gAgentAvatarp.notNull() && gAgentAvatarp->isValid());
 }
 
 void selfStartPhase(const std::string& phase_name)
@@ -670,9 +668,15 @@ BOOL LLVOAvatarSelf::updateCharacter(LLAgent &agent)
 }
 
 // virtual
+BOOL LLVOAvatarSelf::isValid() const
+{
+	return ((getRegion() != NULL) && !isDead());
+}
+
+// virtual
 void LLVOAvatarSelf::idleUpdate(LLAgent &agent, LLWorld &world, const F64 &time)
 {
-	if (isAgentAvatarValid())
+	if (isValid())
 	{
 		LLVOAvatar::idleUpdate(agent, world, time);
 		idleUpdateTractorBeam();
@@ -695,7 +699,7 @@ void LLVOAvatarSelf::resetJointPositions( void )
 	return LLVOAvatar::resetJointPositions();
 }
 // virtual
-BOOL LLVOAvatarSelf::setVisualParamWeight(LLVisualParam *which_param, F32 weight, BOOL upload_bake )
+BOOL LLVOAvatarSelf::setVisualParamWeight(const LLVisualParam *which_param, F32 weight, BOOL upload_bake )
 {
 	if (!which_param)
 	{
@@ -723,7 +727,7 @@ BOOL LLVOAvatarSelf::setVisualParamWeight(S32 index, F32 weight, BOOL upload_bak
 	return setParamWeight(param,weight,upload_bake);
 }
 
-BOOL LLVOAvatarSelf::setParamWeight(LLViewerVisualParam *param, F32 weight, BOOL upload_bake )
+BOOL LLVOAvatarSelf::setParamWeight(const LLViewerVisualParam *param, F32 weight, BOOL upload_bake )
 {
 	if (!param)
 	{
@@ -736,7 +740,7 @@ BOOL LLVOAvatarSelf::setParamWeight(LLViewerVisualParam *param, F32 weight, BOOL
 		U32 size = gAgentWearables.getWearableCount(type);
 		for (U32 count = 0; count < size; ++count)
 		{
-			LLViewerWearable *wearable = gAgentWearables.getWearable(type,count);
+			LLViewerWearable *wearable = gAgentWearables.getViewerWearable(type,count);
 			if (wearable)
 			{
 				wearable->setVisualParamWeight(param->getID(), weight, upload_bake);
@@ -762,7 +766,7 @@ void LLVOAvatarSelf::idleUpdateAppearanceAnimation()
 	// apply wearable visual params to avatar
 	for (U32 type = 0; type < LLWearableType::WT_COUNT; type++)
 	{
-		LLViewerWearable *wearable = gAgentWearables.getTopWearable((LLWearableType::EType)type);
+		LLWearable *wearable = gAgentWearables.getTopWearable((LLWearableType::EType)type);
 		if (wearable)
 		{
 			wearable->writeToAvatar();
@@ -1257,7 +1261,7 @@ BOOL LLVOAvatarSelf::detachObject(LLViewerObject *viewer_object)
 		// Make sure the inventory is in sync with the avatar.
 
 		// Update COF contents, don't trigger appearance update.
-		if (!isAgentAvatarValid())
+		if (!isValid())
 		{
 			llinfos << "removeItemLinks skipped, avatar is under destruction" << llendl;
 		}
@@ -1780,7 +1784,7 @@ void LLVOAvatarSelf::setLocalTexture(ETextureIndex type, LLViewerTexture* src_te
 			return;
 		}
 		LLWearableType::EType wearable_type = LLAvatarAppearanceDictionary::getInstance()->getTEWearableType(type);
-		if (!gAgentWearables.getWearable(wearable_type,index))
+		if (!gAgentWearables.getViewerWearable(wearable_type,index))
 		{
 			// no wearable is loaded, cannot set the texture.
 			return;
@@ -1796,7 +1800,7 @@ void LLVOAvatarSelf::setLocalTexture(ETextureIndex type, LLViewerTexture* src_te
 		LLViewerTexLayerSet *layer_set = getLayerSet(type);
 		if (layer_set)
 		{
-			layer_set->cloneTemplates(local_tex_obj, type, gAgentWearables.getWearable(wearable_type,index));
+			layer_set->cloneTemplates(local_tex_obj, type, gAgentWearables.getViewerWearable(wearable_type,index));
 		}
 
 	}
@@ -2286,7 +2290,7 @@ BOOL LLVOAvatarSelf::canGrabBakedTexture(EBakedTextureIndex baked_index) const
 		
 		for (U32 wearable_index = 0; wearable_index < count; ++wearable_index)
 		{
-			LLViewerWearable *wearable = gAgentWearables.getWearable(wearable_type, wearable_index);
+			LLViewerWearable *wearable = gAgentWearables.getViewerWearable(wearable_type, wearable_index);
 			if (wearable)
 			{
 				const LLLocalTextureObject *texture = wearable->getLocalTextureObject((S32)t_index);
@@ -2361,7 +2365,7 @@ void LLVOAvatarSelf::addLocalTextureStats( ETextureIndex type, LLViewerFetchedTe
 LLLocalTextureObject* LLVOAvatarSelf::getLocalTextureObject(LLAvatarAppearanceDefines::ETextureIndex i, U32 wearable_index) const
 {
 	LLWearableType::EType type = LLAvatarAppearanceDictionary::getInstance()->getTEWearableType(i);
-	LLViewerWearable* wearable = gAgentWearables.getWearable(type, wearable_index);
+	LLViewerWearable* wearable = gAgentWearables.getViewerWearable(type, wearable_index);
 	if (wearable)
 	{
 		return wearable->getLocalTextureObject(i);
diff --git a/indra/newview/llvoavatarself.h b/indra/newview/llvoavatarself.h
index 12886d2d36..2fe960cd1e 100755
--- a/indra/newview/llvoavatarself.h
+++ b/indra/newview/llvoavatarself.h
@@ -97,7 +97,7 @@ public:
 	
 				void		resetJointPositions( void );
 	
-	/*virtual*/ BOOL setVisualParamWeight(LLVisualParam *which_param, F32 weight, BOOL upload_bake = FALSE );
+	/*virtual*/ BOOL setVisualParamWeight(const LLVisualParam *which_param, F32 weight, BOOL upload_bake = FALSE );
 	/*virtual*/ BOOL setVisualParamWeight(const char* param_name, F32 weight, BOOL upload_bake = FALSE );
 	/*virtual*/ BOOL setVisualParamWeight(S32 index, F32 weight, BOOL upload_bake = FALSE );
 	/*virtual*/ void updateVisualParams();
@@ -111,7 +111,7 @@ public:
 
 private:
 	// helper function. Passed in param is assumed to be in avatar's parameter list.
-	BOOL setParamWeight(LLViewerVisualParam *param, F32 weight, BOOL upload_bake = FALSE );
+	BOOL setParamWeight(const LLViewerVisualParam *param, F32 weight, BOOL upload_bake = FALSE );
 
 
 
@@ -131,6 +131,7 @@ private:
 
 public:
 	/*virtual*/ bool 	isSelf() const { return true; }
+	/*virtual*/ BOOL	isValid() const;
 
 	//--------------------------------------------------------------------
 	// Updates