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+/** 
+ * @file llpolymesh.h
+ * @brief Implementation of LLPolyMesh class
+ *
+ * Copyright (c) 2001-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#ifndef LL_LLPOLYMESH_H
+#define LL_LLPOLYMESH_H
+
+#include <string>
+#include <map>
+#include "llstl.h"
+
+#include "v3math.h"
+#include "v2math.h"
+#include "llquaternion.h"
+#include "llskipmap.h"
+#include "llassoclist.h"
+#include "llpolymorph.h"
+#include "llptrskipmap.h"
+#include "lljoint.h"
+//#include "lldarray.h"
+
+class LLSkinJoint;
+class LLVOAvatar;
+
+//#define USE_STRIPS	// Use tri-strips for rendering.
+
+//-----------------------------------------------------------------------------
+// LLPolyFace
+// A set of 4 vertex indices.
+// An LLPolyFace can represent either a triangle or quad.
+// If the last index is -1, it's a triangle.
+//-----------------------------------------------------------------------------
+typedef S32 LLPolyFace[3];
+
+//struct PrimitiveGroup;
+
+//-----------------------------------------------------------------------------
+// LLPolyMesh
+// A polyhedra consisting of any number of triangles and quads.
+// All instances contain a set of faces, and optionally may include
+// faces grouped into named face sets.
+//-----------------------------------------------------------------------------
+class LLPolyMorphTarget;
+
+class LLPolyMeshSharedData
+{
+	friend class LLPolyMesh;
+private:
+	// transform data
+	LLVector3				mPosition;
+	LLQuaternion			mRotation;
+	LLVector3				mScale;
+							
+	// vertex data			
+	S32						mNumVertices;
+	LLVector3				*mBaseCoords;
+	LLVector3				*mBaseNormals;
+	LLVector3				*mBaseBinormals;
+	LLVector2				*mTexCoords;
+	LLVector2				*mDetailTexCoords;
+	F32						*mWeights;
+	
+	BOOL					mHasWeights;
+	BOOL					mHasDetailTexCoords;
+
+	// face data			
+	S32						mNumFaces;
+	LLPolyFace				*mFaces;
+							
+	// face set data		
+	U32						mNumJointNames;
+	std::string*			mJointNames;
+
+	// morph targets
+	typedef LLLinkedList<LLPolyMorphData> LLPolyMorphDataList;
+	LLPolyMorphDataList			mMorphData;
+
+	std::map<S32, S32> 			mSharedVerts;
+	
+	LLPolyMeshSharedData*		mReferenceData;
+	S32							mLastIndexOffset;
+
+public:
+	// Temporarily...
+	// Triangle indices
+	U32				mNumTriangleIndices;
+	U32				*mTriangleIndices;
+
+private:
+	LLPolyMeshSharedData();
+
+	~LLPolyMeshSharedData();
+
+	void setupLOD(LLPolyMeshSharedData* reference_data);
+
+	// Frees all mesh memory resources 
+	void freeMeshData();
+
+	void setPosition( const LLVector3 &pos ) { 	mPosition = pos; }
+	void setRotation( const LLQuaternion &rot ) { mRotation = rot; }
+	void setScale( const LLVector3 &scale ) { mScale = scale; }
+
+	BOOL allocateVertexData( U32 numVertices );
+
+	BOOL allocateFaceData( U32 numFaces );
+
+	BOOL allocateJointNames( U32 numJointNames );
+
+	// Retrieve the number of KB of memory used by this instance
+	U32 getNumKB();
+
+	// Load mesh data from file
+	BOOL loadMesh( const char *fileName );
+
+public:
+	void genIndices(S32 offset);
+
+	const LLVector2 &getUVs(U32 index);
+
+	const S32	*getSharedVert(S32 vert);
+
+	BOOL isLOD() { return (mReferenceData != NULL); }
+};
+
+
+class LLJointRenderData
+{
+public:
+	LLJointRenderData(const LLMatrix4* world_matrix, LLSkinJoint* skin_joint) : mWorldMatrix(world_matrix), mSkinJoint(skin_joint){}
+	~LLJointRenderData(){}
+
+	const LLMatrix4*		mWorldMatrix;
+	LLSkinJoint*			mSkinJoint;
+};
+
+
+class LLPolyMesh
+{
+public:
+	
+	// Constructor
+	LLPolyMesh(LLPolyMeshSharedData *shared_data, LLPolyMesh *reference_mesh);
+
+	// Destructor 
+	~LLPolyMesh();
+
+	// Requests a mesh by name.
+	// If the mesh already exists in the global mesh table, it is returned,
+	// otherwise it is loaded from file, added to the table, and returned.
+	static LLPolyMesh *getMesh( const LLString &name, LLPolyMesh* reference_mesh = NULL);
+
+	// Frees all loaded meshes.
+	// This should only be called once you know there are no outstanding
+	// references to these objects.  Generally, upon exit of the application.
+	static void freeAllMeshes();
+
+	//--------------------------------------------------------------------
+	// Transform Data Access
+	//--------------------------------------------------------------------
+	// Get position
+	const LLVector3 &getPosition() { 
+		llassert (mSharedData);
+		return mSharedData->mPosition; 
+	}
+
+	// Get rotation
+	const LLQuaternion &getRotation() { 
+		llassert (mSharedData);
+		return mSharedData->mRotation; 
+	}
+
+	// Get scale
+	const LLVector3 &getScale() { 
+		llassert (mSharedData);
+		return mSharedData->mScale; 
+	}
+
+	//--------------------------------------------------------------------
+	// Vertex Data Access
+	//--------------------------------------------------------------------
+	// Get number of vertices
+	U32 getNumVertices() { 
+		llassert (mSharedData);
+		return mSharedData->mNumVertices; 
+	}
+
+	// Returns whether or not the mesh has detail texture coords
+	BOOL hasDetailTexCoords() { 
+		llassert (mSharedData);
+		return mSharedData->mHasDetailTexCoords; 
+	}
+
+	// Returns whether or not the mesh has vertex weights
+	BOOL hasWeights() const{ 
+		llassert (mSharedData);
+		return mSharedData->mHasWeights; 
+	}
+
+	// Get coords
+	const LLVector3	*getCoords() const;
+
+	// non const version
+	LLVector3 *getWritableCoords();
+
+	// Get normals
+	const LLVector3	*getNormals() const{ 
+		return mNormals; 
+	}
+
+	// Get normals
+	const LLVector3	*getBinormals() const{ 
+		return mBinormals; 
+	}
+
+	// Get base mesh normals
+	const LLVector3 *getBaseNormals() const{
+		llassert(mSharedData);
+		return mSharedData->mBaseNormals;
+	}
+
+	// Get base mesh normals
+	const LLVector3 *getBaseBinormals() const{
+		llassert(mSharedData);
+		return mSharedData->mBaseBinormals;
+	}
+
+	// intermediate morphed normals and output normals
+	LLVector3 *getWritableNormals();
+	LLVector3 *getScaledNormals();
+
+	LLVector3 *getWritableBinormals();
+	LLVector3 *getScaledBinormals();
+
+	// Get texCoords
+	const LLVector2	*getTexCoords() const { 
+		return mTexCoords; 
+	}
+
+	// non const version
+	LLVector2 *getWritableTexCoords();
+
+	// Get detailTexCoords
+	const LLVector2	*getDetailTexCoords() const { 
+		llassert (mSharedData);
+		return mSharedData->mDetailTexCoords; 
+	}
+
+	// Get weights
+	const F32		*getWeights() const;
+
+	F32			*getWritableWeights() const;
+
+	LLVector4	*getWritableClothingWeights();
+
+	const LLVector4		*getClothingWeights()
+	{
+		return mClothingWeights;	
+	}
+
+	//--------------------------------------------------------------------
+	// Face Data Access
+	//--------------------------------------------------------------------
+	// Get number of faces
+	S32 getNumFaces() { 
+		llassert (mSharedData);
+		return mSharedData->mNumFaces; 
+	}
+
+	// Get faces
+	LLPolyFace *getFaces() { 
+		llassert (mSharedData);
+		return mSharedData->mFaces;
+	}
+
+	U32 getNumJointNames() { 
+		llassert (mSharedData);
+		return mSharedData->mNumJointNames; 
+	}
+
+	std::string *getJointNames() { 
+		llassert (mSharedData);
+		return mSharedData->mJointNames;
+	}
+
+	LLPolyMorphData*	getMorphData(const char *morph_name);
+	void	removeMorphData(LLPolyMorphData *morph_target);
+	void	deleteAllMorphData();
+
+	LLPolyMeshSharedData *getSharedData() const;
+	LLPolyMesh *getReferenceMesh() { return mReferenceMesh ? mReferenceMesh : this; }
+
+	// Get indices
+	U32*	getIndices() { return mSharedData ? mSharedData->mTriangleIndices : NULL; }
+
+	BOOL	isLOD() { return mSharedData && mSharedData->isLOD(); }
+
+	void setAvatar(LLVOAvatar* avatarp) { mAvatarp = avatarp; }
+	LLVOAvatar* getAvatar() { return mAvatarp; }
+
+	LLDynamicArray<LLJointRenderData*>	mJointRenderData;
+
+	U32				mFaceVertexOffset;
+	U32				mFaceVertexCount;
+	U32				mFaceIndexCount;
+	U32				mCurVertexCount;
+private:
+	void initializeForMorph();
+
+	// Dumps diagnostic information about the global mesh table
+	static void dumpDiagInfo();
+
+protected:
+	// mesh data shared across all instances of a given mesh
+	LLPolyMeshSharedData	*mSharedData;
+	// Single array of floats for allocation / deletion
+	F32						*mVertexData;
+	// deformed vertices (resulting from application of morph targets)
+	LLVector3				*mCoords;
+	// deformed normals (resulting from application of morph targets)
+	LLVector3				*mScaledNormals;
+	// output normals (after normalization)
+	LLVector3				*mNormals;
+	// deformed binormals (resulting from application of morph targets)
+	LLVector3				*mScaledBinormals;
+	// output binormals (after normalization)
+	LLVector3				*mBinormals;
+	// weight values that mark verts as clothing/skin
+	LLVector4				*mClothingWeights;
+	// output texture coordinates
+	LLVector2				*mTexCoords;
+	
+	LLPolyMesh				*mReferenceMesh;
+
+	// global mesh list
+	typedef LLAssocList<std::string, LLPolyMeshSharedData*> LLPolyMeshSharedDataTable; 
+	static LLPolyMeshSharedDataTable sGlobalSharedMeshList;
+
+	LLVOAvatar* mAvatarp;
+};
+
+//-----------------------------------------------------------------------------
+// LLPolySkeletalDeformationInfo
+// Shared information for LLPolySkeletalDeformations
+//-----------------------------------------------------------------------------
+struct LLPolySkeletalBoneInfo
+{
+	LLPolySkeletalBoneInfo(LLString &name, LLVector3 &scale, LLVector3 &pos, BOOL haspos)
+		: mBoneName(name),
+		  mScaleDeformation(scale),
+		  mPositionDeformation(pos),
+		  mHasPositionDeformation(haspos) {}
+	LLString mBoneName;
+	LLVector3 mScaleDeformation;
+	LLVector3 mPositionDeformation;
+	BOOL mHasPositionDeformation;
+};
+
+class LLPolySkeletalDistortionInfo : public LLViewerVisualParamInfo
+{
+	friend class LLPolySkeletalDistortion;
+public:
+	LLPolySkeletalDistortionInfo();
+	/*virtual*/ ~LLPolySkeletalDistortionInfo() {};
+	
+	/*virtual*/ BOOL parseXml(LLXmlTreeNode* node);
+
+protected:
+	typedef std::vector<LLPolySkeletalBoneInfo> bone_info_list_t;
+	bone_info_list_t mBoneInfoList;
+};
+
+//-----------------------------------------------------------------------------
+// LLPolySkeletalDeformation
+// A set of joint scale data for deforming the avatar mesh
+//-----------------------------------------------------------------------------
+class LLPolySkeletalDistortion : public LLViewerVisualParam
+{
+public:
+	LLPolySkeletalDistortion(LLVOAvatar *avatarp);
+	~LLPolySkeletalDistortion();
+
+	// Special: These functions are overridden by child classes
+	LLPolySkeletalDistortionInfo*	getInfo() const { return (LLPolySkeletalDistortionInfo*)mInfo; }
+	//   This sets mInfo and calls initialization functions
+	BOOL							setInfo(LLPolySkeletalDistortionInfo *info);
+
+	// LLVisualParam Virtual functions
+	///*virtual*/ BOOL				parseData(LLXmlTreeNode* node);
+	/*virtual*/ void				apply( ESex sex );
+	
+	// LLViewerVisualParam Virtual functions
+	/*virtual*/ F32					getTotalDistortion() { return 0.1f; }
+	/*virtual*/ const LLVector3&	getAvgDistortion()	{ return mDefaultVec; }
+	/*virtual*/ F32					getMaxDistortion() { return 0.1f; }
+	/*virtual*/ LLVector3			getVertexDistortion(S32 index, LLPolyMesh *poly_mesh){return LLVector3(0.001f, 0.001f, 0.001f);}
+	/*virtual*/ const LLVector3*	getFirstDistortion(U32 *index, LLPolyMesh **poly_mesh){index = 0; poly_mesh = NULL; return &mDefaultVec;};
+	/*virtual*/ const LLVector3*	getNextDistortion(U32 *index, LLPolyMesh **poly_mesh){index = 0; poly_mesh = NULL; return NULL;};
+
+protected:
+	typedef std::map<LLJoint*, LLVector3> joint_vec_map_t;
+	joint_vec_map_t mJointScales;
+	joint_vec_map_t mJointOffsets;
+	LLVector3	mDefaultVec;
+	LLVOAvatar* mAvatar;
+};
+
+#endif // LL_LLPOLYMESH_H
+