Migrate llpoly* files to llappearance

indra/llappearance/llpolymesh.h

@@ -0,0 +1,391 @@
+/** 
+ * @file llpolymesh.h
+ * @brief Implementation of LLPolyMesh class
+ *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
+ * 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_LLPOLYMESHINTERFACE_H
+#define LL_LLPOLYMESHINTERFACE_H
+
+#include <string>
+#include <map>
+#include "llstl.h"
+
+#include "v3math.h"
+#include "v2math.h"
+#include "llquaternion.h"
+#include "llpolymorph.h"
+#include "lljoint.h"
+//#include "lldarray.h"
+
+class LLSkinJoint;
+class LLAvatarAppearance;
+class LLWearable;
+
+//#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;
+	LLVector4a				*mBaseCoords;
+	LLVector4a				*mBaseNormals;
+	LLVector4a				*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 std::set<LLPolyMorphData*> morphdata_list_t;
+	morphdata_list_t			mMorphData;
+
+	std::map<S32, S32> 			mSharedVerts;
+	
+	LLPolyMeshSharedData*		mReferenceData;
+	S32							mLastIndexOffset;
+
+public:
+	// Temporarily...
+	// Triangle indices
+	U32				mNumTriangleIndices;
+	U32				*mTriangleIndices;
+
+public:
+	LLPolyMeshSharedData();
+	~LLPolyMeshSharedData();
+
+private:
+	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 std::string& 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 std::string &name, LLPolyMesh* reference_mesh = NULL);
+
+	// Saves the mesh information as a binary Linden Lab Mesh file.
+	BOOL saveLLM(LLFILE *fp);
+
+	// Saves the mesh information as an OBJ file.
+	BOOL saveOBJ(LLFILE *fp);
+
+	// Loads new mesh information from an OBJ file.
+	BOOL loadOBJ(LLFILE *fp);
+
+	// Copies the current mesh to the base mesh.
+	BOOL setSharedFromCurrent();
+
+	// Gets the name of the mesh corresponding to the shared data
+	static const std::string* getSharedMeshName(LLPolyMeshSharedData* shared);
+
+	// Requests mesh data by name.  Returns null if not found.
+	static LLPolyMeshSharedData *getMeshData( const std::string &name );
+
+	// 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 LLVector4a	*getCoords() const{
+		return mCoords;
+	}
+
+	// non const version
+	LLVector4a *getWritableCoords();
+
+	// Get normals
+	const LLVector4a	*getNormals() const{ 
+		return mNormals; 
+	}
+
+	// Get normals
+	const LLVector4a	*getBinormals() const{ 
+		return mBinormals; 
+	}
+
+	// Get base mesh normals
+	const LLVector4a *getBaseNormals() const{
+		llassert(mSharedData);
+		return mSharedData->mBaseNormals;
+	}
+
+	// Get base mesh normals
+	const LLVector4a *getBaseBinormals() const{
+		llassert(mSharedData);
+		return mSharedData->mBaseBinormals;
+	}
+
+	// intermediate morphed normals and output normals
+	LLVector4a *getWritableNormals();
+	LLVector4a *getScaledNormals();
+
+	LLVector4a *getWritableBinormals();
+	LLVector4a *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 {
+		llassert (mSharedData);
+		return mSharedData->mWeights;
+	}
+
+	F32			*getWritableWeights() const;
+
+	LLVector4a	*getWritableClothingWeights();
+
+	const LLVector4a		*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;
+	}
+
+	typedef std::map<std::string,LLPolyMorphData*> morph_list_t;
+	static void getMorphList (const std::string& mesh_name, morph_list_t* morph_list);
+
+	LLPolyMorphData*	getMorphData(const std::string& 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(LLAvatarAppearance* avatarp) { mAvatarp = avatarp; }
+	LLAvatarAppearance* getAvatar() { return mAvatarp; }
+
+	LLDynamicArray<LLJointRenderData*>	mJointRenderData;
+
+	U32				mFaceVertexOffset;
+	U32				mFaceVertexCount;
+	U32				mFaceIndexOffset;
+	U32				mFaceIndexCount;
+	U32				mCurVertexCount;
+
+	// Dumps diagnostic information about the global mesh table
+	static void dumpDiagInfo(void*);
+
+private:
+	void initializeForMorph();
+
+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)
+	LLVector4a				*mCoords;
+	// deformed normals (resulting from application of morph targets)
+	LLVector4a				*mScaledNormals;
+	// output normals (after normalization)
+	LLVector4a				*mNormals;
+	// deformed binormals (resulting from application of morph targets)
+	LLVector4a				*mScaledBinormals;
+	// output binormals (after normalization)
+	LLVector4a				*mBinormals;
+	// weight values that mark verts as clothing/skin
+	LLVector4a				*mClothingWeights;
+	// output texture coordinates
+	LLVector2				*mTexCoords;
+	
+	LLPolyMesh				*mReferenceMesh;
+
+	// global mesh list
+	typedef std::map<std::string, LLPolyMeshSharedData*> LLPolyMeshSharedDataTable; 
+	static LLPolyMeshSharedDataTable sGlobalSharedMeshList;
+
+	// Backlink only; don't make this an LLPointer.
+	LLAvatarAppearance* mAvatarp;
+};
+
+#endif // LL_LLPOLYMESHINTERFACE_H
+