llpolymesh.cpp

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//-----------------------------------------------------------------------------
// Header Files
//-----------------------------------------------------------------------------
#include "llviewerprecompiledheaders.h"

#include "llpolymesh.h"

#include "llviewercontrol.h"
#include "llxmltree.h"
#include "llvoavatar.h"
#include "lldir.h"
#include "llvolume.h"
#include "llendianswizzle.h"

#include "llfasttimer.h"

#define HEADER_ASCII "Linden Mesh 1.0"
#define HEADER_BINARY "Linden Binary Mesh 1.0"

extern LLControlGroup gSavedSettings;                           // read only

//-----------------------------------------------------------------------------
// Global table of loaded LLPolyMeshes
//-----------------------------------------------------------------------------
LLPolyMesh::LLPolyMeshSharedDataTable LLPolyMesh::sGlobalSharedMeshList;

//-----------------------------------------------------------------------------
// LLPolyMeshSharedData()
//-----------------------------------------------------------------------------
LLPolyMeshSharedData::LLPolyMeshSharedData()
{
        mNumVertices = 0;
        mBaseCoords = NULL;
        mBaseNormals = NULL;
        mBaseBinormals = NULL;
        mTexCoords = NULL;
        mDetailTexCoords = NULL;
        mWeights = NULL;
        mHasWeights = FALSE;
        mHasDetailTexCoords = FALSE;

        mNumFaces = 0;
        mFaces = NULL;

        mNumJointNames = 0;
        mJointNames = NULL;

        mTriangleIndices = NULL;
        mNumTriangleIndices = 0;

        mReferenceData = NULL;

        mLastIndexOffset = -1;
}

//-----------------------------------------------------------------------------
// ~LLPolyMeshSharedData()
//-----------------------------------------------------------------------------
LLPolyMeshSharedData::~LLPolyMeshSharedData()
{
        freeMeshData();
        mMorphData.deleteAllData();
}

//-----------------------------------------------------------------------------
// setupLOD()
//-----------------------------------------------------------------------------
void LLPolyMeshSharedData::setupLOD(LLPolyMeshSharedData* reference_data)
{
        mReferenceData = reference_data;

        if (reference_data)
        {
                mBaseCoords = reference_data->mBaseCoords;
                mBaseNormals = reference_data->mBaseNormals;
                mBaseBinormals = reference_data->mBaseBinormals;
                mTexCoords = reference_data->mTexCoords;
                mDetailTexCoords = reference_data->mDetailTexCoords;
                mWeights = reference_data->mWeights;
                mHasWeights = reference_data->mHasWeights;
                mHasDetailTexCoords = reference_data->mHasDetailTexCoords;
        }
}

//-----------------------------------------------------------------------------
// LLPolyMeshSharedData::freeMeshData()
//-----------------------------------------------------------------------------
void LLPolyMeshSharedData::freeMeshData()
{
        if (!mReferenceData)
        {
                mNumVertices = 0;

                delete [] mBaseCoords;
                mBaseCoords = NULL;

                delete [] mBaseNormals;
                mBaseNormals = NULL;

                delete [] mBaseBinormals;
                mBaseBinormals = NULL;

                delete [] mTexCoords;
                mTexCoords = NULL;

                delete [] mDetailTexCoords;
                mDetailTexCoords = NULL;

                delete [] mWeights;
                mWeights = NULL;
        }

        mNumFaces = 0;
        delete [] mFaces;
        mFaces = NULL;

        mNumJointNames = 0;
        delete [] mJointNames;
        mJointNames = NULL;

        delete [] mTriangleIndices;
        mTriangleIndices = NULL;

//      mVertFaceMap.deleteAllData();
}

// compate_int is used by the qsort function to sort the index array
int compare_int(const void *a, const void *b);

//-----------------------------------------------------------------------------
// genIndices()
//-----------------------------------------------------------------------------
void LLPolyMeshSharedData::genIndices(S32 index_offset)
{
        if (index_offset == mLastIndexOffset)
        {
                return;
        }

        delete []mTriangleIndices;
        mTriangleIndices = new U32[mNumTriangleIndices];

        S32 cur_index = 0;
        for (S32 i = 0; i < mNumFaces; i++)
        {
                mTriangleIndices[cur_index] = mFaces[i][0] + index_offset;
                cur_index++;
                mTriangleIndices[cur_index] = mFaces[i][1] + index_offset;
                cur_index++;
                mTriangleIndices[cur_index] = mFaces[i][2] + index_offset;
                cur_index++;
        }

        mLastIndexOffset = index_offset;
}

//--------------------------------------------------------------------
// LLPolyMeshSharedData::getNumKB()
//--------------------------------------------------------------------
U32 LLPolyMeshSharedData::getNumKB()
{
        U32 num_kb = sizeof(LLPolyMesh);

        if (!isLOD())
        {
                num_kb += mNumVertices *
                                        ( sizeof(LLVector3) +   // coords
                                        sizeof(LLVector3) +             // normals
                                        sizeof(LLVector2) );    // texCoords
        }

        if (mHasDetailTexCoords && !isLOD())
        {
                num_kb += mNumVertices * sizeof(LLVector2);     // detailTexCoords
        }

        if (mHasWeights && !isLOD())
        {
                num_kb += mNumVertices * sizeof(float);         // weights
        }

        num_kb += mNumFaces * sizeof(LLPolyFace);       // faces

        num_kb /= 1024;
        return num_kb;
}

//-----------------------------------------------------------------------------
// LLPolyMeshSharedData::allocateVertexData()
//-----------------------------------------------------------------------------
BOOL LLPolyMeshSharedData::allocateVertexData( U32 numVertices )
{
        U32 i;
        mBaseCoords = new LLVector3[ numVertices ];
        mBaseNormals = new LLVector3[ numVertices ];
        mBaseBinormals = new LLVector3[ numVertices ];
        mTexCoords = new LLVector2[ numVertices ];
        mDetailTexCoords = new LLVector2[ numVertices ];
        mWeights = new F32[ numVertices ];
        for (i = 0; i < numVertices; i++)
        {
                mWeights[i] = 0.f;
        }
        mNumVertices = numVertices;
        return TRUE;
}

//-----------------------------------------------------------------------------
// LLPolyMeshSharedData::allocateFaceData()
//-----------------------------------------------------------------------------
BOOL LLPolyMeshSharedData::allocateFaceData( U32 numFaces )
{
        mFaces = new LLPolyFace[ numFaces ];
        mNumFaces = numFaces;
        mNumTriangleIndices = mNumFaces * 3;
        return TRUE;
}

//-----------------------------------------------------------------------------
// LLPolyMeshSharedData::allocateJointNames()
//-----------------------------------------------------------------------------
BOOL LLPolyMeshSharedData::allocateJointNames( U32 numJointNames )
{
        mJointNames = new std::string[ numJointNames ];
        mNumJointNames = numJointNames;
        return TRUE;
}

//--------------------------------------------------------------------
// LLPolyMeshSharedData::loadMesh()
//--------------------------------------------------------------------
BOOL LLPolyMeshSharedData::loadMesh( const char *fileName )
{
        //-------------------------------------------------------------------------
        // Open the file
        //-------------------------------------------------------------------------
        if(!fileName)
        {
                llerrs << "Filename is Empty!" << llendl;
                return FALSE;
        }
        FILE* fp = LLFile::fopen(fileName, "rb");                       /*Flawfinder: ignore*/
        if (!fp)
        {
                llerrs << "can't open: " << fileName << llendl;
                return FALSE;
        }

        //-------------------------------------------------------------------------
        // Read a chunk
        //-------------------------------------------------------------------------
        char header[128];               /*Flawfinder: ignore*/
        if (fread(header, sizeof(char), 128, fp) != 128)
        {
                llwarns << "Short read" << llendl;
        }

        //-------------------------------------------------------------------------
        // Check for proper binary header
        //-------------------------------------------------------------------------
        BOOL status = FALSE;
        if ( strncmp(header, HEADER_BINARY, strlen(HEADER_BINARY)) == 0 )       /*Flawfinder: ignore*/
        {
                lldebugs << "Loading " << fileName << llendl;

                //----------------------------------------------------------------
                // File Header (seek past it)
                //----------------------------------------------------------------
                fseek(fp, 24, SEEK_SET);

                //----------------------------------------------------------------
                // HasWeights
                //----------------------------------------------------------------
                U8 hasWeights;
                size_t numRead = fread(&hasWeights, sizeof(U8), 1, fp);
                if (numRead != 1)
                {
                        llerrs << "can't read HasWeights flag from " << fileName << llendl;
                        return FALSE;
                }
                if (!isLOD())
                {
                        mHasWeights = (hasWeights==0) ? FALSE : TRUE;
                }

                //----------------------------------------------------------------
                // HasDetailTexCoords
                //----------------------------------------------------------------
                U8 hasDetailTexCoords;
                numRead = fread(&hasDetailTexCoords, sizeof(U8), 1, fp);
                if (numRead != 1)
                {
                        llerrs << "can't read HasDetailTexCoords flag from " << fileName << llendl;
                        return FALSE;
                }

                //----------------------------------------------------------------
                // Position
                //----------------------------------------------------------------
                LLVector3 position;
                numRead = fread(position.mV, sizeof(float), 3, fp);
                llendianswizzle(position.mV, sizeof(float), 3);
                if (numRead != 3)
                {
                        llerrs << "can't read Position from " << fileName << llendl;
                        return FALSE;
                }
                setPosition( position );

                //----------------------------------------------------------------
                // Rotation
                //----------------------------------------------------------------
                LLVector3 rotationAngles;
                numRead = fread(rotationAngles.mV, sizeof(float), 3, fp);
                llendianswizzle(rotationAngles.mV, sizeof(float), 3);
                if (numRead != 3)
                {
                        llerrs << "can't read RotationAngles from " << fileName << llendl;
                        return FALSE;
                }

                U8 rotationOrder;
                numRead = fread(&rotationOrder, sizeof(U8), 1, fp);

                if (numRead != 1)
                {
                        llerrs << "can't read RotationOrder from " << fileName << llendl;
                        return FALSE;
                }

                rotationOrder = 0;

                setRotation( mayaQ(     rotationAngles.mV[0],
                                                        rotationAngles.mV[1],
                                                        rotationAngles.mV[2],
                                                        (LLQuaternion::Order)rotationOrder ) );

                //----------------------------------------------------------------
                // Scale
                //----------------------------------------------------------------
                LLVector3 scale;
                numRead = fread(scale.mV, sizeof(float), 3, fp);
                llendianswizzle(scale.mV, sizeof(float), 3);
                if (numRead != 3)
                {
                        llerrs << "can't read Scale from " << fileName << llendl;
                        return FALSE;
                }
                setScale( scale );

                //-------------------------------------------------------------------------
                // Release any existing mesh geometry
                //-------------------------------------------------------------------------
                freeMeshData();

                U16 numVertices = 0;

                //----------------------------------------------------------------
                // NumVertices
                //----------------------------------------------------------------
                if (!isLOD())
                {
                        numRead = fread(&numVertices, sizeof(U16), 1, fp);
                        llendianswizzle(&numVertices, sizeof(U16), 1);
                        if (numRead != 1)
                        {
                                llerrs << "can't read NumVertices from " << fileName << llendl;
                                return FALSE;
                        }

                        allocateVertexData( numVertices );      

                        //----------------------------------------------------------------
                        // Coords
                        //----------------------------------------------------------------
                        numRead = fread(mBaseCoords, 3*sizeof(float), numVertices, fp);
                        llendianswizzle(mBaseCoords, sizeof(float), 3*numVertices);
                        if (numRead != numVertices)
                        {
                                llerrs << "can't read Coordinates from " << fileName << llendl;
                                return FALSE;
                        }

                        //----------------------------------------------------------------
                        // Normals
                        //----------------------------------------------------------------
                        numRead = fread(mBaseNormals, 3*sizeof(float), numVertices, fp);
                        llendianswizzle(mBaseNormals, sizeof(float), 3*numVertices);
                        if (numRead != numVertices)
                        {
                                llerrs << " can't read Normals from " << fileName << llendl;
                                return FALSE;
                        }

                        //----------------------------------------------------------------
                        // Binormals
                        //----------------------------------------------------------------
                        numRead = fread(mBaseBinormals, 3*sizeof(float), numVertices, fp);
                        llendianswizzle(mBaseBinormals, sizeof(float), 3*numVertices);
                        if (numRead != numVertices)
                        {
                                llerrs << " can't read Binormals from " << fileName << llendl;
                                return FALSE;
                        }


                        //----------------------------------------------------------------
                        // TexCoords
                        //----------------------------------------------------------------
                        numRead = fread(mTexCoords, 2*sizeof(float), numVertices, fp);
                        llendianswizzle(mTexCoords, sizeof(float), 2*numVertices);
                        if (numRead != numVertices)
                        {
                                llerrs << "can't read TexCoords from " << fileName << llendl;
                                return FALSE;
                        }

                        //----------------------------------------------------------------
                        // DetailTexCoords
                        //----------------------------------------------------------------
                        if (mHasDetailTexCoords)
                        {
                                numRead = fread(mDetailTexCoords, 2*sizeof(float), numVertices, fp);
                                llendianswizzle(mDetailTexCoords, sizeof(float), 2*numVertices);
                                if (numRead != numVertices)
                                {
                                        llerrs << "can't read DetailTexCoords from " << fileName << llendl;
                                        return FALSE;
                                }
                        }

                        //----------------------------------------------------------------
                        // Weights
                        //----------------------------------------------------------------
                        if (mHasWeights)
                        {
                                numRead = fread(mWeights, sizeof(float), numVertices, fp);
                                llendianswizzle(mWeights, sizeof(float), numVertices);
                                if (numRead != numVertices)
                                {
                                        llerrs << "can't read Weights from " << fileName << llendl;
                                        return FALSE;
                                }
                        }
                }

                //----------------------------------------------------------------
                // NumFaces
                //----------------------------------------------------------------
                U16 numFaces;
                numRead = fread(&numFaces, sizeof(U16), 1, fp);
                llendianswizzle(&numFaces, sizeof(U16), 1);
                if (numRead != 1)
                {
                        llerrs << "can't read NumFaces from " << fileName << llendl;
                        return FALSE;
                }
                allocateFaceData( numFaces );


                //----------------------------------------------------------------
                // Faces
                //----------------------------------------------------------------
                U32 i;
                U32 numTris = 0;
                for (i = 0; i < numFaces; i++)
                {
                        S16 face[3];
                        numRead = fread(face, sizeof(U16), 3, fp);
                        llendianswizzle(face, sizeof(U16), 3);
                        if (numRead != 3)
                        {
                                llerrs << "can't read Face[" << i << "] from " << fileName << llendl;
                                return FALSE;
                        }
                        if (mReferenceData)
                        {
                                llassert(face[0] < mReferenceData->mNumVertices);
                                llassert(face[1] < mReferenceData->mNumVertices);
                                llassert(face[2] < mReferenceData->mNumVertices);
                        }
                        
                        if (isLOD())
                        {
                                // store largest index in case of LODs
                                for (S32 j = 0; j < 3; j++)
                                {
                                        if (face[j] > mNumVertices - 1)
                                        {
                                                mNumVertices = face[j] + 1;
                                        }
                                }
                        }
                        mFaces[i][0] = face[0];
                        mFaces[i][1] = face[1];
                        mFaces[i][2] = face[2];

//                      S32 j;
//                      for(j = 0; j < 3; j++)
//                      {
//                              LLDynamicArray<S32> *face_list = mVertFaceMap.getIfThere(face[j]);
//                              if (!face_list)
//                              {
//                                      face_list = new LLDynamicArray<S32>;
//                                      mVertFaceMap.addData(face[j], face_list);
//                              }
//                              face_list->put(i);
//                      }

                        numTris++;
                }

                lldebugs << "verts: " << numVertices 
                        << ", faces: "   << numFaces
                        << ", tris: "    << numTris
                        << llendl;

                //----------------------------------------------------------------
                // NumSkinJoints
                //----------------------------------------------------------------
                if (!isLOD())
                {
                        U16 numSkinJoints = 0;
                        if ( mHasWeights )
                        {
                                numRead = fread(&numSkinJoints, sizeof(U16), 1, fp);
                                llendianswizzle(&numSkinJoints, sizeof(U16), 1);
                                if (numRead != 1)
                                {
                                        llerrs << "can't read NumSkinJoints from " << fileName << llendl;
                                        return FALSE;
                                }
                                allocateJointNames( numSkinJoints );
                        }

                        //----------------------------------------------------------------
                        // SkinJoints
                        //----------------------------------------------------------------
                        for (i=0; i < numSkinJoints; i++)
                        {
                                char jointName[64+1];
                                numRead = fread(jointName, sizeof(jointName)-1, 1, fp);
                                jointName[sizeof(jointName)-1] = '\0'; // ensure nul-termination
                                if (numRead != 1)
                                {
                                        llerrs << "can't read Skin[" << i << "].Name from " << fileName << llendl;
                                        return FALSE;
                                }

                                std::string *jn = &mJointNames[i];
                                *jn = jointName;
                        }

                        //-------------------------------------------------------------------------
                        // look for morph section
                        //-------------------------------------------------------------------------
                        char morphName[64+1];
                        morphName[sizeof(morphName)-1] = '\0'; // ensure nul-termination
                        while(fread(&morphName, sizeof(char), 64, fp) == 64)
                        {
                                if (!strcmp(morphName, "End Morphs"))
                                {
                                        // we reached the end of the morphs
                                        break;
                                }
                                LLPolyMorphData* morph_data = new LLPolyMorphData(morphName);

                                BOOL result = morph_data->loadBinary(fp, this);

                                if (!result)
                                {
                                        delete morph_data;
                                        continue;
                                }

                                mMorphData.addData(morph_data);
                        }

                        S32 numRemaps;
                        if (fread(&numRemaps, sizeof(S32), 1, fp) == 1)
                        {
                                llendianswizzle(&numRemaps, sizeof(S32), 1);
                                for (S32 i = 0; i < numRemaps; i++)
                                {
                                        S32 remapSrc;
                                        S32 remapDst;
                                        if (fread(&remapSrc, sizeof(S32), 1, fp) != 1)
                                        {
                                                llerrs << "can't read source vertex in vertex remap data" << llendl;
                                                break;
                                        }
                                        if (fread(&remapDst, sizeof(S32), 1, fp) != 1)
                                        {
                                                llerrs << "can't read destination vertex in vertex remap data" << llendl;
                                                break;
                                        }
                                        llendianswizzle(&remapSrc, sizeof(S32), 1);
                                        llendianswizzle(&remapDst, sizeof(S32), 1);

                                        mSharedVerts[remapSrc] = remapDst;
                                }
                        }
                }

                status = TRUE;
        }
        else
        {
                llerrs << "invalid mesh file header: " << fileName << llendl;
                status = FALSE;
        }

        if (0 == mNumJointNames)
        {
                allocateJointNames(1);
        }

        fclose( fp );

        return status;
}

//-----------------------------------------------------------------------------
// getSharedVert()
//-----------------------------------------------------------------------------
const S32 *LLPolyMeshSharedData::getSharedVert(S32 vert)
{
        if (mSharedVerts.count(vert) > 0)
        {
                return &mSharedVerts[vert];
        }
        return NULL;
}

//-----------------------------------------------------------------------------
// getUV()
//-----------------------------------------------------------------------------
const LLVector2 &LLPolyMeshSharedData::getUVs(U32 index)
{
        // TODO: convert all index variables to S32
        llassert((S32)index < mNumVertices);

        return mTexCoords[index];
}

//-----------------------------------------------------------------------------
// LLPolyMesh()
//-----------------------------------------------------------------------------
LLPolyMesh::LLPolyMesh(LLPolyMeshSharedData *shared_data, LLPolyMesh *reference_mesh)
{
        llassert(shared_data);

        mSharedData = shared_data;
        mReferenceMesh = reference_mesh;
        mAvatarp = NULL;
        mVertexData = NULL;

        if (shared_data->isLOD() && reference_mesh)
        {
                mCoords = reference_mesh->mCoords;
                mNormals = reference_mesh->mNormals;
                mScaledNormals = reference_mesh->mScaledNormals;
                mBinormals = reference_mesh->mBinormals;
                mScaledBinormals = reference_mesh->mScaledBinormals;
                mTexCoords = reference_mesh->mTexCoords;
                mClothingWeights = reference_mesh->mClothingWeights;
        }
        else
        {
#if 1   // Allocate memory without initializing every vector
                // NOTE: This makes asusmptions about the size of LLVector[234]
                int nverts = mSharedData->mNumVertices;
                int nfloats = nverts * (3*5 + 2 + 4);
                mVertexData = new F32[nfloats];
                int offset = 0;
                mCoords =                               (LLVector3*)(mVertexData + offset); offset += 3*nverts;
                mNormals =                              (LLVector3*)(mVertexData + offset); offset += 3*nverts;
                mScaledNormals =                (LLVector3*)(mVertexData + offset); offset += 3*nverts;
                mBinormals =                    (LLVector3*)(mVertexData + offset); offset += 3*nverts;
                mScaledBinormals =              (LLVector3*)(mVertexData + offset); offset += 3*nverts;
                mTexCoords =                    (LLVector2*)(mVertexData + offset); offset += 2*nverts;
                mClothingWeights =      (LLVector4*)(mVertexData + offset); offset += 4*nverts;
#else
                mCoords = new LLVector3[mSharedData->mNumVertices];
                mNormals = new LLVector3[mSharedData->mNumVertices];
                mScaledNormals = new LLVector3[mSharedData->mNumVertices];
                mBinormals = new LLVector3[mSharedData->mNumVertices];
                mScaledBinormals = new LLVector3[mSharedData->mNumVertices];
                mTexCoords = new LLVector2[mSharedData->mNumVertices];
                mClothingWeights = new LLVector4[mSharedData->mNumVertices];
                memset(mClothingWeights, 0, sizeof(LLVector4) * mSharedData->mNumVertices);
#endif
                initializeForMorph();
        }
}


//-----------------------------------------------------------------------------
// ~LLPolyMesh()
//-----------------------------------------------------------------------------
LLPolyMesh::~LLPolyMesh()
{
        S32 i;
        for (i = 0; i < mJointRenderData.count(); i++)
        {
                delete mJointRenderData[i];
                mJointRenderData[i] = NULL;
        }
#if 0 // These are now allocated as one big uninitialized chunk
        delete [] mCoords;
        delete [] mNormals;
        delete [] mScaledNormals;
        delete [] mBinormals;
        delete [] mScaledBinormals;
        delete [] mClothingWeights;
        delete [] mTexCoords;
#else
        delete [] mVertexData;
#endif
}


//-----------------------------------------------------------------------------
// LLPolyMesh::getMesh()
//-----------------------------------------------------------------------------
LLPolyMesh *LLPolyMesh::getMesh(const LLString &name, LLPolyMesh* reference_mesh)
{
        //-------------------------------------------------------------------------
        // search for an existing mesh by this name
        //-------------------------------------------------------------------------
        LLPolyMeshSharedData **meshSharedData = sGlobalSharedMeshList.getValue(name);
        if (meshSharedData)
        {
//              llinfos << "Polymesh " << name << " found in global mesh table." << llendl;
                LLPolyMesh *poly_mesh = new LLPolyMesh(*meshSharedData, reference_mesh);
                return poly_mesh;
        }

        //-------------------------------------------------------------------------
        // if not found, create a new one, add it to the list
        //-------------------------------------------------------------------------
        char full_path[LL_MAX_PATH];            /*Flawfinder: ignore*/
        snprintf(full_path, LL_MAX_PATH, "%s", (gDirUtilp->getExpandedFilename(LL_PATH_CHARACTER,name.c_str())).c_str());                       /* Flawfinder: ignore */

        LLPolyMeshSharedData *mesh_data = new LLPolyMeshSharedData();
        if (reference_mesh)
        {
                mesh_data->setupLOD(reference_mesh->getSharedData());
        }
        if ( ! mesh_data->loadMesh( full_path ) )
        {
                delete mesh_data;
                return NULL;
        }

        LLPolyMesh *poly_mesh = new LLPolyMesh(mesh_data, reference_mesh);

//      llinfos << "Polymesh " << name << " added to global mesh table." << llendl;
        sGlobalSharedMeshList.addToTail(name, poly_mesh->mSharedData);

        return poly_mesh;
}

//-----------------------------------------------------------------------------
// LLPolyMesh::freeAllMeshes()
//-----------------------------------------------------------------------------
void LLPolyMesh::freeAllMeshes()
{
        U32 i;

        // delete each item in the global lists
        for (i=0; i<sGlobalSharedMeshList.length(); i++)
        {
                // returns a pointer to the value, which is the pointer
                // to the mesh
                LLPolyMeshSharedData **shared_mesh_pp = sGlobalSharedMeshList.getValueAt(i);

                // delete the mesh
                delete *shared_mesh_pp;
        }

        // empty the lists
        sGlobalSharedMeshList.removeAll();
}

LLPolyMeshSharedData *LLPolyMesh::getSharedData() const
{
        return mSharedData;
}


//--------------------------------------------------------------------
// LLPolyMesh::dumpDiagInfo()
//--------------------------------------------------------------------
void LLPolyMesh::dumpDiagInfo()
{
        // keep track of totals
        U32 total_verts = 0;
        U32 total_faces = 0;
        U32 total_kb = 0;

        char buf[1024];         /*Flawfinder: ignore*/

        llinfos << "-----------------------------------------------------" << llendl;
        llinfos << "       Global PolyMesh Table (DEBUG only)" << llendl;
        llinfos << "   Verts    Faces  Mem(KB) Name" << llendl;
        llinfos << "-----------------------------------------------------" << llendl;

        // print each loaded mesh, and it's memory usage
        for (U32 i=0; i<sGlobalSharedMeshList.length(); i++)
        {
                std::string *mesh_name_p = sGlobalSharedMeshList.getIndexAt(i);

                LLPolyMeshSharedData **mesh_pp = sGlobalSharedMeshList.getValueAt(i);
                LLPolyMeshSharedData &mesh = **mesh_pp;

                S32 num_verts = mesh.mNumVertices;
                S32 num_faces = mesh.mNumFaces;
                U32 num_kb = mesh.getNumKB();

                snprintf(buf, sizeof(buf), "%8d %8d %8d %s", num_verts, num_faces, num_kb, mesh_name_p->c_str());                       /* Flawfinder: ignore */
                llinfos << buf << llendl;

                total_verts += num_verts;
                total_faces += num_faces;
                total_kb += num_kb;
        }

        llinfos << "-----------------------------------------------------" << llendl;
        snprintf(buf, sizeof(buf), "%8d %8d %8d TOTAL", total_verts, total_faces, total_kb );                   /* Flawfinder: ignore */
        llinfos << buf << llendl;
        llinfos << "-----------------------------------------------------" << llendl;
}
 
//-----------------------------------------------------------------------------
// getCoords()
//-----------------------------------------------------------------------------
const LLVector3 *LLPolyMesh::getCoords() const
{
        return mCoords;
}

//-----------------------------------------------------------------------------
// getWritableCoords()
//-----------------------------------------------------------------------------
LLVector3 *LLPolyMesh::getWritableCoords()
{
        return mCoords;
}

//-----------------------------------------------------------------------------
// getWritableNormals()
//-----------------------------------------------------------------------------
LLVector3 *LLPolyMesh::getWritableNormals()
{
        return mNormals;
}

//-----------------------------------------------------------------------------
// getWritableBinormals()
//-----------------------------------------------------------------------------
LLVector3 *LLPolyMesh::getWritableBinormals()
{
        return mBinormals;
}


//-----------------------------------------------------------------------------
// getWritableClothingWeights()
//-----------------------------------------------------------------------------
LLVector4       *LLPolyMesh::getWritableClothingWeights()
{
        return mClothingWeights;
}

//-----------------------------------------------------------------------------
// getWritableTexCoords()
//-----------------------------------------------------------------------------
LLVector2       *LLPolyMesh::getWritableTexCoords()
{
        return mTexCoords;
}

//-----------------------------------------------------------------------------
// getScaledNormals()
//-----------------------------------------------------------------------------
LLVector3 *LLPolyMesh::getScaledNormals()
{
        return mScaledNormals;
}

//-----------------------------------------------------------------------------
// getScaledBinormals()
//-----------------------------------------------------------------------------
LLVector3 *LLPolyMesh::getScaledBinormals()
{
        return mScaledBinormals;
}


//-----------------------------------------------------------------------------
// initializeForMorph()
//-----------------------------------------------------------------------------
void LLPolyMesh::initializeForMorph()
{
        if (!mSharedData)
                return;

        memcpy(mCoords, mSharedData->mBaseCoords, sizeof(LLVector3) * mSharedData->mNumVertices);       /*Flawfinder: ignore*/
        memcpy(mNormals, mSharedData->mBaseNormals, sizeof(LLVector3) * mSharedData->mNumVertices);     /*Flawfinder: ignore*/
        memcpy(mScaledNormals, mSharedData->mBaseNormals, sizeof(LLVector3) * mSharedData->mNumVertices);       /*Flawfinder: ignore*/
        memcpy(mBinormals, mSharedData->mBaseBinormals, sizeof(LLVector3) * mSharedData->mNumVertices); /*Flawfinder: ignore*/
        memcpy(mScaledBinormals, mSharedData->mBaseBinormals, sizeof(LLVector3) * mSharedData->mNumVertices);           /*Flawfinder: ignore*/
        memcpy(mTexCoords, mSharedData->mTexCoords, sizeof(LLVector2) * mSharedData->mNumVertices);             /*Flawfinder: ignore*/
        memset(mClothingWeights, 0, sizeof(LLVector4) * mSharedData->mNumVertices);
}

//-----------------------------------------------------------------------------
// getMorphData()
//-----------------------------------------------------------------------------
LLPolyMorphData*        LLPolyMesh::getMorphData(const char *morph_name)
{
        if (!mSharedData) return NULL;
        for (LLPolyMorphData *morph_data = mSharedData->mMorphData.getFirstData();
                morph_data;
                morph_data = mSharedData->mMorphData.getNextData())
        {
                if (!strcmp(morph_data->getName(), morph_name))
                {
                        return morph_data;
                }
        }
        return NULL;
}

//-----------------------------------------------------------------------------
// removeMorphData()
//-----------------------------------------------------------------------------
void    LLPolyMesh::removeMorphData(LLPolyMorphData *morph_target)
{
        if (!mSharedData) return;

        mSharedData->mMorphData.removeData(morph_target);
}

//-----------------------------------------------------------------------------
// deleteAllMorphData()
//-----------------------------------------------------------------------------
void    LLPolyMesh::deleteAllMorphData()
{
        if (!mSharedData) return;

        mSharedData->mMorphData.deleteAllData();
}

//-----------------------------------------------------------------------------
// getWeights()
//-----------------------------------------------------------------------------
const F32*      LLPolyMesh::getWeights() const
{ 
        return mSharedData->mWeights;
}

//-----------------------------------------------------------------------------
// getWritableWeights()
//-----------------------------------------------------------------------------
F32*    LLPolyMesh::getWritableWeights() const
{
        return mSharedData->mWeights;
}

//-----------------------------------------------------------------------------
// LLPolySkeletalDistortionInfo()
//-----------------------------------------------------------------------------
LLPolySkeletalDistortionInfo::LLPolySkeletalDistortionInfo()
{
}

BOOL LLPolySkeletalDistortionInfo::parseXml(LLXmlTreeNode* node)
{
        llassert( node->hasName( "param" ) && node->getChildByName( "param_skeleton" ) );
        
        if (!LLViewerVisualParamInfo::parseXml(node))
                return FALSE;

        LLXmlTreeNode* skeletalParam = node->getChildByName("param_skeleton");

        if (NULL == skeletalParam)
        {
                llwarns << "Failed to getChildByName(\"param_skeleton\")"
                        << llendl;
                return FALSE;
        }

        for( LLXmlTreeNode* bone = skeletalParam->getFirstChild(); bone; bone = skeletalParam->getNextChild() )
        {
                if (bone->hasName("bone"))
                {
                        LLString name;
                        LLVector3 scale;
                        LLVector3 pos;
                        BOOL haspos = FALSE;
                        
                        static LLStdStringHandle name_string = LLXmlTree::addAttributeString("name");
                        if (!bone->getFastAttributeString(name_string, name))
                        {
                                llwarns << "No bone name specified for skeletal param." << llendl;
                                continue;
                        }

                        static LLStdStringHandle scale_string = LLXmlTree::addAttributeString("scale");
                        if (!bone->getFastAttributeVector3(scale_string, scale))
                        {
                                llwarns << "No scale specified for bone " << name << "." << llendl;
                                continue;
                        }

                        // optional offset deformation (translation)
                        static LLStdStringHandle offset_string = LLXmlTree::addAttributeString("offset");
                        if (bone->getFastAttributeVector3(offset_string, pos))
                        {
                                haspos = TRUE;
                        }
                        mBoneInfoList.push_back(LLPolySkeletalBoneInfo(name, scale, pos, haspos));
                }
                else
                {
                        llwarns << "Unrecognized element " << bone->getName() << " in skeletal distortion" << llendl;
                        continue;
                }
        }
        return TRUE;
}

//-----------------------------------------------------------------------------
// LLPolySkeletalDistortion()
//-----------------------------------------------------------------------------
LLPolySkeletalDistortion::LLPolySkeletalDistortion(LLVOAvatar *avatarp)
{
        mAvatar = avatarp;
        mDefaultVec.setVec(0.001f, 0.001f, 0.001f);
}

//-----------------------------------------------------------------------------
// ~LLPolySkeletalDistortion()
//-----------------------------------------------------------------------------
LLPolySkeletalDistortion::~LLPolySkeletalDistortion()
{
}

BOOL LLPolySkeletalDistortion::setInfo(LLPolySkeletalDistortionInfo *info)
{
        llassert(mInfo == NULL);
        if (info->mID < 0)
                return FALSE;
        mInfo = info;
        mID = info->mID;
        setWeight(getDefaultWeight(), FALSE );

        LLPolySkeletalDistortionInfo::bone_info_list_t::iterator iter;
        for (iter = getInfo()->mBoneInfoList.begin(); iter != getInfo()->mBoneInfoList.end(); iter++)
        {
                LLPolySkeletalBoneInfo *bone_info = &(*iter);
                LLJoint* joint = mAvatar->getJoint(bone_info->mBoneName);
                if (!joint)
                {
                        llwarns << "Joint " << bone_info->mBoneName << " not found." << llendl;
                        continue;
                }

                if (mJointScales.find(joint) != mJointScales.end())
                {
                        llwarns << "Scale deformation already supplied for joint " << joint->getName() << "." << llendl;
                }

                // store it
                mJointScales[joint] = bone_info->mScaleDeformation;

                // apply to children that need to inherit it
                for (LLJoint::child_list_t::iterator iter = joint->mChildren.begin();
                         iter != joint->mChildren.end(); ++iter)
                {
                        LLViewerJoint* child_joint = (LLViewerJoint*)(*iter);
                        if (child_joint->inheritScale())
                        {
                                LLVector3 childDeformation = LLVector3(child_joint->getScale());
                                childDeformation.scaleVec(bone_info->mScaleDeformation);
                                mJointScales[child_joint] = childDeformation;
                        }
                }

                if (bone_info->mHasPositionDeformation)
                {
                        if (mJointOffsets.find(joint) != mJointOffsets.end())
                        {
                                llwarns << "Offset deformation already supplied for joint " << joint->getName() << "." << llendl;
                        }
                        mJointOffsets[joint] = bone_info->mPositionDeformation;
                }
        }
        return TRUE;
}

//-----------------------------------------------------------------------------
// apply()
//-----------------------------------------------------------------------------
void LLPolySkeletalDistortion::apply( ESex avatar_sex )
{
        F32 effective_weight = ( getSex() & avatar_sex ) ? mCurWeight : getDefaultWeight();

        LLJoint* joint;
        joint_vec_map_t::iterator iter;

        for (iter = mJointScales.begin();
                 iter != mJointScales.end();
                 iter++)
        {
                joint = iter->first;
                LLVector3 newScale = joint->getScale();
                LLVector3 scaleDelta = iter->second;
                newScale = newScale + (effective_weight * scaleDelta) - (mLastWeight * scaleDelta);
                joint->setScale(newScale);
        }

        for (iter = mJointOffsets.begin();
                 iter != mJointOffsets.end();
                 iter++)
        {
                joint = iter->first;
                LLVector3 newPosition = joint->getPosition();
                LLVector3 positionDelta = iter->second;
                newPosition = newPosition + (effective_weight * positionDelta) - (mLastWeight * positionDelta);
                joint->setPosition(newPosition);
        }

        if (mLastWeight != mCurWeight && !mIsAnimating)
        {
                mAvatar->setSkeletonSerialNum(mAvatar->getSkeletonSerialNum() + 1);
        }
        mLastWeight = mCurWeight;
}

// End

---