llpolymesh.h
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- /**
- * @file llpolymesh.h
- * @brief Implementation of LLPolyMesh class
- *
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #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 "llpolymorph.h"
- #include "lljoint.h"
- //#include "lldarray.h"
- class LLSkinJoint;
- class LLVOAvatar;
- 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;
- 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 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);
- // 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{
- return mCoords;
- }
- // 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 {
- llassert (mSharedData);
- return mSharedData->mWeights;
- }
- 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 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(LLVOAvatar* avatarp) { mAvatarp = avatarp; }
- LLVOAvatar* getAvatar() { return mAvatarp; }
- LLDynamicArray<LLJointRenderData*> mJointRenderData;
- U32 mFaceVertexOffset;
- U32 mFaceVertexCount;
- U32 mFaceIndexOffset;
- 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 std::map<std::string, LLPolyMeshSharedData*> LLPolyMeshSharedDataTable;
- static LLPolyMeshSharedDataTable sGlobalSharedMeshList;
- // Backlink only; don't make this an LLPointer.
- LLVOAvatar* mAvatarp;
- };
- //-----------------------------------------------------------------------------
- // LLPolySkeletalDeformationInfo
- // Shared information for LLPolySkeletalDeformations
- //-----------------------------------------------------------------------------
- struct LLPolySkeletalBoneInfo
- {
- LLPolySkeletalBoneInfo(std::string &name, LLVector3 &scale, LLVector3 &pos, BOOL haspos)
- : mBoneName(name),
- mScaleDeformation(scale),
- mPositionDeformation(pos),
- mHasPositionDeformation(haspos) {}
- std::string 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);
- /*virtual*/ LLViewerVisualParam* cloneParam(LLWearable* wearable) const;
- // 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;
- // Backlink only; don't make this an LLPointer.
- LLVOAvatar *mAvatar;
- };
- #endif // LL_LLPOLYMESH_H