llprimitive.cpp

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#include "linden_common.h"

#include "material_codes.h"
#include "llerror.h"
#include "message.h"
#include "llprimitive.h"
#include "llvolume.h"
#include "legacy_object_types.h"
#include "v4coloru.h"
#include "llvolumemgr.h"
#include "llstring.h"
#include "lldatapacker.h"

const F32 OBJECT_CUT_MIN = 0.f;
const F32 OBJECT_CUT_MAX = 1.f;
const F32 OBJECT_CUT_INC = 0.05f;
const F32 OBJECT_MIN_CUT_INC = 0.02f;
const F32 OBJECT_ROTATION_PRECISION = 0.05f;

const F32 OBJECT_TWIST_MIN = -360.f;
const F32 OBJECT_TWIST_MAX =  360.f;
const F32 OBJECT_TWIST_INC =   18.f;

// This is used for linear paths,
// since twist is used in a slightly different manner.
const F32 OBJECT_TWIST_LINEAR_MIN       = -180.f;
const F32 OBJECT_TWIST_LINEAR_MAX       =  180.f;
const F32 OBJECT_TWIST_LINEAR_INC       =    9.f;

const F32 OBJECT_MIN_HOLE_SIZE = 0.05f;
const F32 OBJECT_MAX_HOLE_SIZE_X = 1.0f;
const F32 OBJECT_MAX_HOLE_SIZE_Y = 0.5f;

// Revolutions parameters.
const F32 OBJECT_REV_MIN = 1.0f;
const F32 OBJECT_REV_MAX = 4.0f;
const F32 OBJECT_REV_INC = 0.1f;

// lights
const F32 LIGHT_MIN_RADIUS = 0.0f;
const F32 LIGHT_DEFAULT_RADIUS = 5.0f;
const F32 LIGHT_MAX_RADIUS = 20.0f;
const F32 LIGHT_MIN_FALLOFF = 0.0f;
const F32 LIGHT_DEFAULT_FALLOFF = 1.0f;
const F32 LIGHT_MAX_FALLOFF = 2.0f;
const F32 LIGHT_MIN_CUTOFF = 0.0f;
const F32 LIGHT_DEFAULT_CUTOFF = 0.0f;
const F32 LIGHT_MAX_CUTOFF = 180.f;

// "Tension" => [0,10], increments of 0.1
const F32 FLEXIBLE_OBJECT_MIN_TENSION = 0.0f;
const F32 FLEXIBLE_OBJECT_DEFAULT_TENSION = 1.0f;
const F32 FLEXIBLE_OBJECT_MAX_TENSION = 10.0f; 

// "Drag" => [0,10], increments of 0.1
const F32 FLEXIBLE_OBJECT_MIN_AIR_FRICTION = 0.0f;
const F32 FLEXIBLE_OBJECT_DEFAULT_AIR_FRICTION = 2.0f;
const F32 FLEXIBLE_OBJECT_MAX_AIR_FRICTION = 10.0f;

// "Gravity" = [-10,10], increments of 0.1
const F32 FLEXIBLE_OBJECT_MIN_GRAVITY = -10.0f;
const F32 FLEXIBLE_OBJECT_DEFAULT_GRAVITY = 0.3f;
const F32 FLEXIBLE_OBJECT_MAX_GRAVITY = 10.0f;

// "Wind" = [0,10], increments of 0.1
const F32 FLEXIBLE_OBJECT_MIN_WIND_SENSITIVITY = 0.0f;
const F32 FLEXIBLE_OBJECT_DEFAULT_WIND_SENSITIVITY = 0.0f;
const F32 FLEXIBLE_OBJECT_MAX_WIND_SENSITIVITY = 10.0f;

// I'll explain later...
const F32 FLEXIBLE_OBJECT_MAX_INTERNAL_TENSION_FORCE = 0.99f; 

const F32 FLEXIBLE_OBJECT_DEFAULT_LENGTH = 1.0f;
const BOOL FLEXIBLE_OBJECT_DEFAULT_USING_COLLISION_SPHERE = FALSE;
const BOOL FLEXIBLE_OBJECT_DEFAULT_RENDERING_COLLISION_SPHERE = FALSE;


const char *SCULPT_DEFAULT_TEXTURE = "be293869-d0d9-0a69-5989-ad27f1946fd4"; // old inverted texture: "7595d345-a24c-e7ef-f0bd-78793792133e";


//===============================================================
LLPrimitive::LLPrimitive()
{
        mPrimitiveCode = 0;

        mMaterial = LL_MCODE_STONE;
        mVolumep  = NULL;

        mChanged  = UNCHANGED;

        mPosition.setVec(0.f,0.f,0.f);
        mVelocity.setVec(0.f,0.f,0.f);
        mAcceleration.setVec(0.f,0.f,0.f);

        mRotation.loadIdentity();
        mAngularVelocity.setVec(0.f,0.f,0.f);
        
        mScale.setVec(1.f,1.f,1.f);

        mNumTEs = 0;
        mTextureList = NULL;
}

//===============================================================
LLPrimitive::~LLPrimitive()
{
        if (mTextureList)
        {
                delete [] mTextureList;
                mTextureList = NULL;
        }

        // Cleanup handled by volume manager
        if (mVolumep)
        {
                gVolumeMgr->cleanupVolume(mVolumep);
        }
        mVolumep = NULL;
}

//===============================================================
// static
LLPrimitive *LLPrimitive::createPrimitive(LLPCode p_code)
{
        LLPrimitive *retval = new LLPrimitive();
        
        if (retval)
        {
                retval->init(p_code);
        }
        else
        {
                llerrs << "primitive allocation failed" << llendl;
        }

        return retval;
}

//===============================================================
void LLPrimitive::init(LLPCode p_code)
{
        if (mNumTEs)
        {
                if (mTextureList)
                {
                        delete [] mTextureList;
                }
                mTextureList = new LLTextureEntry[mNumTEs];
        }

        mPrimitiveCode = p_code;
}

void LLPrimitive::setPCode(const U8 p_code)
{
        mPrimitiveCode = p_code;
}

//===============================================================
const LLTextureEntry * LLPrimitive::getTE(const U8 te_num) const
{
        // if we're asking for a non-existent face, return null
        if (mNumTEs && (te_num< mNumTEs))
        {
                return(&mTextureList[te_num]);
        }
        else
        {       
                return(NULL);
        }
}

//===============================================================
void LLPrimitive::setNumTEs(const U8 num_tes)
{
        if (num_tes == mNumTEs)
        {
                return;
        }
        
        // Right now, we don't try and preserve entries when the number of faces
        // changes.

        if (num_tes)
        {
                LLTextureEntry *new_tes;
                new_tes = new LLTextureEntry[num_tes];
                U32 i;
                for (i = 0; i < num_tes; i++)
                {
                        if (i < mNumTEs)
                        {
                                new_tes[i] = mTextureList[i];
                        }
                        else if (mNumTEs)
                        {
                                new_tes[i] = mTextureList[mNumTEs - 1];
                        }
                        else
                        {
                                new_tes[i] = LLTextureEntry();
                        }
                }
                delete[] mTextureList;
                mTextureList = new_tes;
        }
        else
        {
                delete[] mTextureList;
                mTextureList = NULL;
        }


        mNumTEs = num_tes;
}

//===============================================================
void  LLPrimitive::setAllTETextures(const LLUUID &tex_id)
{
        U8 i;

        for (i = 0; i < mNumTEs; i++)
        {
                mTextureList[i].setID(tex_id);
        }
}

//===============================================================
void LLPrimitive::setTE(const U8 index, const LLTextureEntry &te)
{
        mTextureList[index] = te;
}

S32  LLPrimitive::setTETexture(const U8 te, const LLUUID &tex_id)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setID(tex_id);
}

S32  LLPrimitive::setTEColor(const U8 te, const LLColor4 &color)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setColor(color);
}

S32  LLPrimitive::setTEColor(const U8 te, const LLColor3 &color)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setColor(color);
}

S32  LLPrimitive::setTEAlpha(const U8 te, const F32 alpha)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setAlpha(alpha);
}

//===============================================================
S32  LLPrimitive::setTEScale(const U8 te, const F32 s, const F32 t)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "Setting nonexistent face" << llendl;
                return 0;
        }

        return mTextureList[te].setScale(s,t);
}


// BUG: slow - done this way because texture entries have some
// voodoo related to texture coords
S32 LLPrimitive::setTEScaleS(const U8 te, const F32 s)
{
        if (te >= mNumTEs)
        {
                llwarns << "Setting nonexistent face" << llendl;
                return 0;
        }

        F32 ignore, t;
        mTextureList[te].getScale(&ignore, &t);
        return mTextureList[te].setScale(s,t);
}


// BUG: slow - done this way because texture entries have some
// voodoo related to texture coords
S32 LLPrimitive::setTEScaleT(const U8 te, const F32 t)
{
        if (te >= mNumTEs)
        {
                llwarns << "Setting nonexistent face" << llendl;
                return 0;
        }

        F32 s, ignore;
        mTextureList[te].getScale(&s, &ignore);
        return mTextureList[te].setScale(s,t);
}


//===============================================================
S32  LLPrimitive::setTEOffset(const U8 te, const F32 s, const F32 t)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "Setting nonexistent face" << llendl;
                return 0;
        }

        return mTextureList[te].setOffset(s,t);
}


// BUG: slow - done this way because texture entries have some
// voodoo related to texture coords
S32 LLPrimitive::setTEOffsetS(const U8 te, const F32 s)
{
        if (te >= mNumTEs)
        {
                llwarns << "Setting nonexistent face" << llendl;
                return 0;
        }

        F32 ignore, t;
        mTextureList[te].getOffset(&ignore, &t);
        return mTextureList[te].setOffset(s,t);
}


// BUG: slow - done this way because texture entries have some
// voodoo related to texture coords
S32 LLPrimitive::setTEOffsetT(const U8 te, const F32 t)
{
        if (te >= mNumTEs)
        {
                llwarns << "Setting nonexistent face" << llendl;
                return 0;
        }

        F32 s, ignore;
        mTextureList[te].getOffset(&s, &ignore);
        return mTextureList[te].setOffset(s,t);
}


//===============================================================
S32  LLPrimitive::setTERotation(const U8 te, const F32 r)
{
     // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "Setting nonexistent face" << llendl;
                return 0;
        }

        return mTextureList[te].setRotation(r);
}


//===============================================================
S32  LLPrimitive::setTEBumpShinyFullbright(const U8 te, const U8 bump)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setBumpShinyFullbright( bump );
}

S32  LLPrimitive::setTEMediaTexGen(const U8 te, const U8 media)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setMediaTexGen( media );
}

S32  LLPrimitive::setTEBumpmap(const U8 te, const U8 bump)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setBumpmap( bump );
}

S32  LLPrimitive::setTEBumpShiny(const U8 te, const U8 bump_shiny)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setBumpShiny( bump_shiny );
}

S32  LLPrimitive::setTETexGen(const U8 te, const U8 texgen)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setTexGen( texgen );
}

S32  LLPrimitive::setTEShiny(const U8 te, const U8 shiny)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setShiny( shiny );
}

S32  LLPrimitive::setTEFullbright(const U8 te, const U8 fullbright)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setFullbright( fullbright );
}

S32  LLPrimitive::setTEMediaFlags(const U8 te, const U8 media_flags)
{
    // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                return 0;
        }

        return mTextureList[te].setMediaFlags( media_flags );
}

S32 LLPrimitive::setTEGlow(const U8 te, const F32 glow)
{
        // if we're asking for a non-existent face, return null
        if (te >= mNumTEs)
        {
                llwarns << "setting non-existent te " << te << llendl
                        return 0;
        }

        return mTextureList[te].setGlow( glow );
}


LLPCode LLPrimitive::legacyToPCode(const U8 legacy)
{
        LLPCode pcode = 0;

        switch (legacy)
        {
                /*
        case BOX:
                pcode = LL_PCODE_CUBE;
                break;
        case CYLINDER:
                pcode = LL_PCODE_CYLINDER;
                break;
        case CONE:
                pcode = LL_PCODE_CONE;
                break;
        case HALF_CONE:
                pcode = LL_PCODE_CONE_HEMI;
                break;
        case HALF_CYLINDER:
                pcode = LL_PCODE_CYLINDER_HEMI;
                break;
        case HALF_SPHERE:
                pcode = LL_PCODE_SPHERE_HEMI;
                break;
        case PRISM:
                pcode = LL_PCODE_PRISM;
                break;
        case PYRAMID:
                pcode = LL_PCODE_PYRAMID;
                break;
        case SPHERE:
                pcode = LL_PCODE_SPHERE;
                break;
        case TETRAHEDRON:
                pcode = LL_PCODE_TETRAHEDRON;
                break;
        case DEMON:
                pcode = LL_PCODE_LEGACY_DEMON;
                break;
        case LSL_TEST:
                pcode = LL_PCODE_LEGACY_LSL_TEST;
                break;
        case ORACLE:
                pcode = LL_PCODE_LEGACY_ORACLE;
                break;
        case TEXTBUBBLE:
                pcode = LL_PCODE_LEGACY_TEXT_BUBBLE;
                break;
        case ATOR:
                pcode = LL_PCODE_LEGACY_ATOR;
                break;
        case BASIC_SHOT:
                pcode = LL_PCODE_LEGACY_SHOT;
                break;
        case BIG_SHOT:
                pcode = LL_PCODE_LEGACY_SHOT_BIG;
                break;
        case BIRD:
                pcode = LL_PCODE_LEGACY_BIRD;
                break;
        case ROCK:
                pcode = LL_PCODE_LEGACY_ROCK;
                break;
        case SMOKE:
                pcode = LL_PCODE_LEGACY_SMOKE;
                break;
        case SPARK:
                pcode = LL_PCODE_LEGACY_SPARK;
                break;
                */
        case PRIMITIVE_VOLUME:
                pcode = LL_PCODE_VOLUME;
                break;
        case GRASS:
                pcode = LL_PCODE_LEGACY_GRASS;
                break;
        case PART_SYS:
                pcode = LL_PCODE_LEGACY_PART_SYS;
                break;
        case PLAYER:
                pcode = LL_PCODE_LEGACY_AVATAR;
                break;
        case TREE:
                pcode = LL_PCODE_LEGACY_TREE;
                break;
        case TREE_NEW:
                pcode = LL_PCODE_TREE_NEW;
                break;
        default:
                llwarns << "Unknown legacy code " << legacy << "!" << llendl;
        }

        return pcode;
}

U8 LLPrimitive::pCodeToLegacy(const LLPCode pcode)
{
        U8 legacy;
        switch (pcode)
        {
/*
        case LL_PCODE_CUBE:
                legacy = BOX;
                break;
        case LL_PCODE_CYLINDER:
                legacy = CYLINDER;
                break;
        case LL_PCODE_CONE:
                legacy = CONE;
                break;
        case LL_PCODE_CONE_HEMI:
                legacy = HALF_CONE;
                break;
        case LL_PCODE_CYLINDER_HEMI:
                legacy = HALF_CYLINDER;
                break;
        case LL_PCODE_SPHERE_HEMI:
                legacy = HALF_SPHERE;
                break;
        case LL_PCODE_PRISM:
                legacy = PRISM;
                break;
        case LL_PCODE_PYRAMID:
                legacy = PYRAMID;
                break;
        case LL_PCODE_SPHERE:
                legacy = SPHERE;
                break;
        case LL_PCODE_TETRAHEDRON:
                legacy = TETRAHEDRON;
                break;
        case LL_PCODE_LEGACY_ATOR:
                legacy = ATOR;
                break;
        case LL_PCODE_LEGACY_SHOT:
                legacy = BASIC_SHOT;
                break;
        case LL_PCODE_LEGACY_SHOT_BIG:
                legacy = BIG_SHOT;
                break;
        case LL_PCODE_LEGACY_BIRD:
                legacy = BIRD;
                break;          
        case LL_PCODE_LEGACY_DEMON:
                legacy = DEMON;
                break;
        case LL_PCODE_LEGACY_LSL_TEST:
                legacy = LSL_TEST;
                break;
        case LL_PCODE_LEGACY_ORACLE:
                legacy = ORACLE;
                break;
        case LL_PCODE_LEGACY_ROCK:
                legacy = ROCK;
                break;
        case LL_PCODE_LEGACY_TEXT_BUBBLE:
                legacy = TEXTBUBBLE;
                break;
        case LL_PCODE_LEGACY_SMOKE:
                legacy = SMOKE;
                break;
        case LL_PCODE_LEGACY_SPARK:
                legacy = SPARK;
                break;
*/
        case LL_PCODE_VOLUME:
                legacy = PRIMITIVE_VOLUME;
                break;
        case LL_PCODE_LEGACY_GRASS:
                legacy = GRASS;
                break;
        case LL_PCODE_LEGACY_PART_SYS:
                legacy = PART_SYS;
                break;
        case LL_PCODE_LEGACY_AVATAR:
                legacy = PLAYER;
                break;
        case LL_PCODE_LEGACY_TREE:
                legacy = TREE;
                break;
        case LL_PCODE_TREE_NEW:
                legacy = TREE_NEW;
                break;
        default:
                llwarns << "Unknown pcode " << (S32)pcode << ":" << pcode << "!" << llendl;
                return 0;
        }
        return legacy;
}


// static
// Don't crash or llerrs here!  This function is used for debug strings.
const char * LLPrimitive::pCodeToString(const LLPCode pcode)
{
        static char pcode_string[255];  /* Flawfinder: ignore */

        U8 base_code = pcode & LL_PCODE_BASE_MASK;
        pcode_string[0] = 0;
        if (!pcode)
        {
                snprintf(pcode_string, sizeof(pcode_string), "null");   /* Flawfinder: ignore */
        }
        else if ((base_code) == LL_PCODE_LEGACY)
        {
                // It's a legacy object
                switch (pcode)
                {
                case LL_PCODE_LEGACY_GRASS:
                        snprintf(pcode_string, sizeof(pcode_string), "grass");  /* Flawfinder: ignore */
                        break;
                case LL_PCODE_LEGACY_PART_SYS:
                        snprintf(pcode_string, sizeof(pcode_string), "particle system");        /* Flawfinder: ignore */
                        break;
                case LL_PCODE_LEGACY_AVATAR:
                        snprintf(pcode_string, sizeof(pcode_string), "avatar"); /* Flawfinder: ignore */
                        break;
                case LL_PCODE_LEGACY_TEXT_BUBBLE:
                        snprintf(pcode_string, sizeof(pcode_string), "text bubble");    /* Flawfinder: ignore */
                        break;
                case LL_PCODE_LEGACY_TREE:
                        snprintf(pcode_string, sizeof(pcode_string), "tree");           /* Flawfinder: ignore */
                        break;
                case LL_PCODE_TREE_NEW:
                        snprintf(pcode_string, sizeof(pcode_string), "tree_new");       /* Flawfinder: ignore */
                        break;
                default:
                        snprintf(pcode_string, sizeof(pcode_string), "unknown legacy pcode %i",(U32)pcode);     /* Flawfinder: ignore */
                }
        }
        else
        {
                char shape[32]; /* Flawfinder: ignore */
                char mask[32];  /* Flawfinder: ignore */
                if (base_code == LL_PCODE_CUBE)
                {
                        snprintf(shape, sizeof(shape), "cube"); /* Flawfinder: ignore */
                }
                else if (base_code == LL_PCODE_CYLINDER)
                {
                        snprintf(shape, sizeof(shape), "cylinder");     /* Flawfinder: ignore */
                }
                else if (base_code == LL_PCODE_CONE)
                {
                        snprintf(shape, sizeof(shape), "cone"); /* Flawfinder: ignore */
                }
                else if (base_code == LL_PCODE_PRISM)
                {
                        snprintf(shape, sizeof(shape), "prism");        /* Flawfinder: ignore */
                }
                else if (base_code == LL_PCODE_PYRAMID)
                {
                        snprintf(shape, sizeof(shape), "pyramid");              /* Flawfinder: ignore */
                }
                else if (base_code == LL_PCODE_SPHERE)
                {
                        snprintf(shape, sizeof(shape), "sphere");               /* Flawfinder: ignore */
                }
                else if (base_code == LL_PCODE_TETRAHEDRON)
                {
                        snprintf(shape, sizeof(shape), "tetrahedron");          /* Flawfinder: ignore */
                }
                else if (base_code == LL_PCODE_VOLUME)
                {
                        snprintf(shape, sizeof(shape), "volume");               /* Flawfinder: ignore */
                }
                else if (base_code == LL_PCODE_APP)
                {
                        snprintf(shape, sizeof(shape), "app");          /* Flawfinder: ignore */
                }
                else
                {
                        llwarns << "Unknown base mask for pcode: " << base_code << llendl;
                }

                U8 mask_code = pcode & (~LL_PCODE_BASE_MASK);
                if (base_code == LL_PCODE_APP)
                {
                        snprintf(mask, sizeof(mask), "%x", mask_code);          /* Flawfinder: ignore */
                }
                else if (mask_code & LL_PCODE_HEMI_MASK)
                {
                        snprintf(mask, sizeof(mask), "hemi");           /* Flawfinder: ignore */
                }
                else 
                {
                        snprintf(mask, sizeof(mask), "%x", mask_code);          /* Flawfinder: ignore */
                }

                // extra sanity against snprintf() being naturally crap
                mask[sizeof(mask)-1] = '\0';
                shape[sizeof(shape)-1] = '\0';

                if (mask[0])
                {
                        snprintf(pcode_string, sizeof(pcode_string), "%s-%s", shape, mask);             /* Flawfinder: ignore */
                }
                else
                {
                        snprintf(pcode_string, sizeof(pcode_string), "%s", shape);              /* Flawfinder: ignore */
                }
        }

        // Be really sure that pcode_string is nul-terminated after we've
        // been using crappy snprintf() to build it.
        pcode_string[sizeof(pcode_string)-1] = '\0';

        return pcode_string;
}


void LLPrimitive::copyTEs(const LLPrimitive *primitivep)
{
        U32 i;
        if (primitivep->getNumTEs() != getNumTEs())
        {
                llwarns << "Primitives don't have same number of TE's" << llendl;
        }
        U32 num_tes = llmin(primitivep->getNumTEs(), getNumTEs());
        for (i = 0; i < num_tes; i++)
        {
                const LLTextureEntry *tep = primitivep->getTE(i);
                F32 s, t;
                setTETexture(i, tep->getID());
                setTEColor(i, tep->getColor());
                tep->getScale(&s, &t);
                setTEScale(i, s, t);
                tep->getOffset(&s, &t);
                setTEOffset(i, s, t);
                setTERotation(i, tep->getRotation());
                setTEBumpShinyFullbright(i, tep->getBumpShinyFullbright());
                setTEMediaTexGen(i, tep->getMediaTexGen());
                setTEGlow(i, tep->getGlow());
        }
}

S32     face_index_from_id(LLFaceID face_ID, const std::vector<LLProfile::Face>& faceArray)
{
        S32 i;
        for (i = 0; i < (S32)faceArray.size(); i++)
        {
                if (faceArray[i].mFaceID == face_ID)
                {
                        return i;
                }
        }
        return -1;
}

BOOL LLPrimitive::setVolume(const LLVolumeParams &volume_params, const S32 detail, bool unique_volume)
{
        LLVolume *volumep;
        if (unique_volume)
        {
                F32 volume_detail = LLVolumeLODGroup::getVolumeScaleFromDetail(detail);
                if (mVolumep.notNull() && volume_params == mVolumep->getParams() && (volume_detail == mVolumep->getDetail()))
                {
                        return FALSE;
                }
                volumep = new LLVolume(volume_params, volume_detail, FALSE, TRUE);
        }
        else
        {
                if (mVolumep.notNull())
                {
                        F32 volume_detail = LLVolumeLODGroup::getVolumeScaleFromDetail(detail);
                        if (volume_params == mVolumep->getParams() && (volume_detail == mVolumep->getDetail()))
                        {
                                return FALSE;
                        }
                }

                volumep = gVolumeMgr->getVolume(volume_params, detail);
                if (volumep == mVolumep)
                {
                        gVolumeMgr->cleanupVolume( volumep );  // gVolumeMgr->getVolume() creates a reference, but we don't need a second one.
                        return TRUE;
                }
        }

        setChanged(GEOMETRY);

        
        if (!mVolumep)
        {
                mVolumep = volumep;
                //mFaceMask = mVolumep->generateFaceMask();
                setNumTEs(mVolumep->getNumFaces());
                return TRUE;
        }

        U32 old_face_mask = mVolumep->mFaceMask;

        S32 face_bit = 0;
        S32 cur_mask = 0;

        // grab copies of the old faces so we can determine the TE mappings...
        std::vector<LLProfile::Face> old_faces; // list of old faces for remapping texture entries
        LLTextureEntry old_tes[9];

        for (S32 face = 0; face < mVolumep->getNumFaces(); face++)
        {
                old_faces.push_back(mVolumep->getProfile().mFaces[face]);
        }

        for (face_bit = 0; face_bit < 9; face_bit++)
        {
                cur_mask = 0x1 << face_bit;
                if (old_face_mask & cur_mask)
                {
                        S32 te_index = face_index_from_id(cur_mask, old_faces);
                        old_tes[face_bit] = *getTE(te_index);
                        //llinfos << face_bit << ":" << te_index << ":" << old_tes[face_bit].getID() << llendl;
                }
        }


        // build the new object
        gVolumeMgr->cleanupVolume(mVolumep);
        mVolumep = volumep;
        
        U32 new_face_mask = mVolumep->mFaceMask;
        S32 i;

        /*
        LLString old_mask_string;
        for (i = 0; i < 9; i++)
        {
                if (old_face_mask & (1 << i))
                {
                        old_mask_string.append("1");
                }
                else
                {
                        old_mask_string.append("0");
                }
        }
        LLString new_mask_string;
        for (i = 0; i < 9; i++)
        {
                if (new_face_mask & (1 << i))
                {
                        new_mask_string.append("1");
                }
                else
                {
                        new_mask_string.append("0");
                }
        }

        llinfos << "old mask: " << old_mask_string << llendl;
        llinfos << "new mask: " << new_mask_string << llendl;
        */


        if (old_face_mask == new_face_mask) 
        {
                // nothing to do
                return TRUE;
        }

        if (mVolumep->getNumFaces() == 0 && new_face_mask != 0)
        {
                llwarns << "Object with 0 faces found...INCORRECT!" << llendl;
                setNumTEs(mVolumep->getNumFaces());
                return TRUE;
        }


        S32 face_mapping[9];
        for (face_bit = 0; face_bit < 9; face_bit++)
        {
                face_mapping[face_bit] = face_bit;
        }

        // Generate the face-type mappings
        for (face_bit = 0; face_bit < 9; face_bit++)
        {
                cur_mask = 0x1 << face_bit;
                if (!(new_face_mask & cur_mask))
                {
                        // Face doesn't exist in new map.
                        face_mapping[face_bit] = -1;
                        continue;
                }
                else if (old_face_mask & cur_mask)
                {
                        // Face exists in new and old map.
                        face_mapping[face_bit] = face_bit;
                        continue;
                }

                // OK, how we've got a mismatch, where we have to fill a new face with one from
                // the old face.
                if (cur_mask & (LL_FACE_PATH_BEGIN | LL_FACE_PATH_END | LL_FACE_INNER_SIDE))
                {
                        // It's a top/bottom/hollow interior face.
                        if (old_face_mask & LL_FACE_PATH_END)
                        {
                                face_mapping[face_bit] = 1;
                                continue;
                        }
                        else
                        {
                                S32 cur_outer_mask = LL_FACE_OUTER_SIDE_0;
                                for (i = 0; i < 4; i++)
                                {
                                        if (old_face_mask & cur_outer_mask)
                                        {
                                                face_mapping[face_bit] = 5 + i;
                                                break;
                                        }
                                        cur_outer_mask <<= 1;
                                }
                                if (i == 4)
                                {
                                        llwarns << "No path end or outer face in volume!" << llendl;
                                }
                                continue;
                        }
                }

                if (cur_mask & (LL_FACE_PROFILE_BEGIN | LL_FACE_PROFILE_END))
                {
                        // A cut slice.  Use the hollow interior if we have it.
                        if (old_face_mask & LL_FACE_INNER_SIDE)
                        {
                                face_mapping[face_bit] = 2;
                                continue;
                        }

                        // No interior, use the bottom face.
                        // Could figure out which of the outer faces was nearest, but that would be harder.
                        if (old_face_mask & LL_FACE_PATH_END)
                        {
                                face_mapping[face_bit] = 1;
                                continue;
                        }
                        else
                        {
                                S32 cur_outer_mask = LL_FACE_OUTER_SIDE_0;
                                for (i = 0; i < 4; i++)
                                {
                                        if (old_face_mask & cur_outer_mask)
                                        {
                                                face_mapping[face_bit] = 5 + i;
                                                break;
                                        }
                                        cur_outer_mask <<= 1;
                                }
                                if (i == 4)
                                {
                                        llwarns << "No path end or outer face in volume!" << llendl;
                                }
                                continue;
                        }
                }

                // OK, the face that's missing is an outer face...
                // Pull from the nearest adjacent outer face (there's always guaranteed to be one...
                S32 cur_outer = face_bit - 5;
                S32 min_dist = 5;
                S32 min_outer_bit = -1;
                S32 i;
                for (i = 0; i < 4; i++)
                {
                        if (old_face_mask & (LL_FACE_OUTER_SIDE_0 << i))
                        {
                                S32 dist = abs(i - cur_outer);
                                if (dist < min_dist)
                                {
                                        min_dist = dist;
                                        min_outer_bit = i + 5;
                                }
                        }
                }
                if (-1 == min_outer_bit)
                {
                        llinfos << (LLVolume *)mVolumep << llendl;
                        llwarns << "Bad!  No outer faces, impossible!" << llendl;
                }
                face_mapping[face_bit] = min_outer_bit;
        }


        setNumTEs(mVolumep->getNumFaces());
        for (face_bit = 0; face_bit < 9; face_bit++)
        {
                cur_mask = 0x1 << face_bit;
                if (new_face_mask & cur_mask)
                {
                        if (-1 == face_mapping[face_bit])
                        {
                                llwarns << "No mapping from old face to new face!" << llendl;
                        }

                        S32 te_num = face_index_from_id(cur_mask, mVolumep->getProfile().mFaces);
                        setTE(te_num, old_tes[face_mapping[face_bit]]);
                }
        }
        return TRUE;
}

BOOL LLPrimitive::setMaterial(U8 material)
{
        if (material != mMaterial)
        {
                mMaterial = material;
                return TRUE;
        }
        else
        {
                return FALSE;
        }
}

void LLPrimitive::setTEArrays(const U8 size,
                                                          const LLUUID* image_ids,
                                                          const F32* scale_s,
                                                          const F32* scale_t)
{
        S32 cur_size = size;
        if (cur_size > getNumTEs())
        {
                llwarns << "Trying to set more TEs than exist!" << llendl;
                cur_size = getNumTEs();
        }

        S32 i;
        // Copy over image information
        for (i = 0; i < cur_size; i++)
        {
                // This is very BAD!!!!!!
                if (image_ids != NULL)
                {
                        setTETexture(i,image_ids[i]);
                }
                if (scale_s && scale_t)
                {
                        setTEScale(i, scale_s[i], scale_t[i]);
                }
        }

        if (i < getNumTEs())
        {
                cur_size--;
                for (i=i; i < getNumTEs(); i++)         // the i=i removes a gcc warning
                {
                        if (image_ids != NULL)
                        {
                                setTETexture(i, image_ids[cur_size]);
                        }
                        if (scale_s && scale_t)
                        {
                                setTEScale(i, scale_s[cur_size], scale_t[cur_size]);
                        }
                }
        }
}

const F32 LL_MAX_SCALE_S = 100.0f;
const F32 LL_MAX_SCALE_T = 100.0f;
S32 LLPrimitive::packTEField(U8 *cur_ptr, U8 *data_ptr, U8 data_size, U8 last_face_index, EMsgVariableType type) const
{
        S32 face_index;
        S32 i;
        U64 exception_faces;
        U8 *start_loc = cur_ptr;

        htonmemcpy(cur_ptr,data_ptr + (last_face_index * data_size), type, data_size);
        cur_ptr += data_size;
        
        for (face_index = last_face_index-1; face_index >= 0; face_index--)
        {
                BOOL already_sent = FALSE;
                for (i = face_index+1; i <= last_face_index; i++)
                { 
                        if (!memcmp(data_ptr+(data_size *face_index), data_ptr+(data_size *i), data_size))
                        {
                                already_sent = TRUE;
                                break;
                        }
                }

                if (!already_sent)
                {
                        exception_faces = 0;
                        for (i = face_index; i >= 0; i--)
                        { 
                                if (!memcmp(data_ptr+(data_size *face_index), data_ptr+(data_size *i), data_size))
                                {
                                        exception_faces |= ((U64)1 << i); 
                                }
                        }
                        
                        //assign exception faces to cur_ptr
                        if (exception_faces >= (0x1 << 7))
                        {
                                if (exception_faces >= (0x1 << 14))
                                {
                                        if (exception_faces >= (0x1 << 21))
                                        {
                                                if (exception_faces >= (0x1 << 28))
                                                {
                                                        *cur_ptr++ = (U8)(((exception_faces >> 28) & 0x7F) | 0x80);
                                                }
                                                *cur_ptr++ = (U8)(((exception_faces >> 21) & 0x7F) | 0x80);
                                        }
                                        *cur_ptr++ = (U8)(((exception_faces >> 14) & 0x7F) | 0x80);
                                }
                                *cur_ptr++ = (U8)(((exception_faces >> 7) & 0x7F) | 0x80);
                        }
                        
                        *cur_ptr++ = (U8)(exception_faces & 0x7F);
                        
                        htonmemcpy(cur_ptr,data_ptr + (face_index * data_size), type, data_size);
                        cur_ptr += data_size;
                }
        }
        return (S32)(cur_ptr - start_loc);
}

S32 LLPrimitive::unpackTEField(U8 *cur_ptr, U8 *buffer_end, U8 *data_ptr, U8 data_size, U8 face_count, EMsgVariableType type)
{
        U8 *start_loc = cur_ptr;
        U64 i;
        htonmemcpy(data_ptr,cur_ptr, type,data_size);
        cur_ptr += data_size;

        for (i = 1; i < face_count; i++)
        {
                // Already unswizzled, don't need to unswizzle it again!
                memcpy(data_ptr+(i*data_size),data_ptr,data_size);      /* Flawfinder: ignore */ 
        }
        
        while ((cur_ptr < buffer_end) && (*cur_ptr != 0))
        {
//              llinfos << "TE exception" << llendl;
                i = 0;
                while (*cur_ptr & 0x80)
                {
                        i |= ((*cur_ptr++) & 0x7F);
                        i = i << 7;
                }

                i |= *cur_ptr++;

                for (S32 j = 0; j < face_count; j++)
                {
                        if (i & 0x01)
                        {
                                htonmemcpy(data_ptr+(j*data_size),cur_ptr,type,data_size);
//                              char foo[64];
//                              sprintf(foo,"%x %x",*(data_ptr+(j*data_size)), *(data_ptr+(j*data_size)+1));
//                              llinfos << "Assigning " << foo << " to face " << j << llendl;                   
                        }
                        i = i >> 1;
                }
                cur_ptr += data_size;           
        }
        return (S32)(cur_ptr - start_loc);
}


// Pack information about all texture entries into container:
// { TextureEntry Variable 2 }
// Includes information about image ID, color, scale S,T, offset S,T and rotation
BOOL LLPrimitive::packTEMessage(LLMessageSystem *mesgsys) const
{
        const U32 MAX_TES = 32;

        U8     image_ids[MAX_TES*16];
        U8     colors[MAX_TES*4];
        F32    scale_s[MAX_TES];
        F32    scale_t[MAX_TES];
        S16    offset_s[MAX_TES];
        S16    offset_t[MAX_TES];
        S16    image_rot[MAX_TES];
        U8         bump[MAX_TES];
        U8         media_flags[MAX_TES];
    U8     glow[MAX_TES];
        
        const U32 MAX_TE_BUFFER = 4096;
        U8 packed_buffer[MAX_TE_BUFFER];
        U8 *cur_ptr = packed_buffer;
        
        S32 last_face_index = getNumTEs() - 1;
        
        if (last_face_index > -1)
        {
                // ...if we hit the front, send one image id
                S8 face_index;
                LLColor4U coloru;
                for (face_index = 0; face_index <= last_face_index; face_index++)
                {
                        // Directly sending image_ids is not safe!
                        memcpy(&image_ids[face_index*16],getTE(face_index)->getID().mData,16);  /* Flawfinder: ignore */ 

                        // Cast LLColor4 to LLColor4U
                        coloru.setVec( getTE(face_index)->getColor() );

                        // Note:  This is an optimization to send common colors (1.f, 1.f, 1.f, 1.f)
                        // as all zeros.  However, the subtraction and addition must be done in unsigned
                        // byte space, not in float space, otherwise off-by-one errors occur. JC
                        colors[4*face_index]     = 255 - coloru.mV[0];
                        colors[4*face_index + 1] = 255 - coloru.mV[1];
                        colors[4*face_index + 2] = 255 - coloru.mV[2];
                        colors[4*face_index + 3] = 255 - coloru.mV[3];

                        const LLTextureEntry* te = getTE(face_index);
                        scale_s[face_index] = (F32) te->mScaleS;
                        scale_t[face_index] = (F32) te->mScaleT;
                        offset_s[face_index] = (S16) llround((llclamp(te->mOffsetS,-1.0f,1.0f) * (F32)0x7FFF)) ;
                        offset_t[face_index] = (S16) llround((llclamp(te->mOffsetT,-1.0f,1.0f) * (F32)0x7FFF)) ;
                        image_rot[face_index] = (S16) llround(((fmod(te->mRotation, F_TWO_PI)/F_TWO_PI) * (F32)0x7FFF));
                        bump[face_index] = te->getBumpShinyFullbright();
                        media_flags[face_index] = te->getMediaTexGen();
                        glow[face_index] = (U8) llround((llclamp(te->getGlow(), 0.0f, 1.0f) * (F32)0xFF));
                }

                cur_ptr += packTEField(cur_ptr, (U8 *)image_ids, sizeof(LLUUID),last_face_index, MVT_LLUUID);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)colors, 4 ,last_face_index, MVT_U8);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)scale_s, 4 ,last_face_index, MVT_F32);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)scale_t, 4 ,last_face_index, MVT_F32);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)offset_s, 2 ,last_face_index, MVT_S16Array);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)offset_t, 2 ,last_face_index, MVT_S16Array);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)image_rot, 2 ,last_face_index, MVT_S16Array);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)bump, 1 ,last_face_index, MVT_U8);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)media_flags, 1 ,last_face_index, MVT_U8);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)glow, 1 ,last_face_index, MVT_U8);
        }
        mesgsys->addBinaryDataFast(_PREHASH_TextureEntry, packed_buffer, (S32)(cur_ptr - packed_buffer));

        return FALSE;
}


BOOL LLPrimitive::packTEMessage(LLDataPacker &dp) const
{
        const U32 MAX_TES = 32;

        U8     image_ids[MAX_TES*16];
        U8     colors[MAX_TES*4];
        F32    scale_s[MAX_TES];
        F32    scale_t[MAX_TES];
        S16    offset_s[MAX_TES];
        S16    offset_t[MAX_TES];
        S16    image_rot[MAX_TES];
        U8         bump[MAX_TES];
        U8         media_flags[MAX_TES];
    U8     glow[MAX_TES];
        
        const U32 MAX_TE_BUFFER = 4096;
        U8 packed_buffer[MAX_TE_BUFFER];
        U8 *cur_ptr = packed_buffer;
        
        S32 last_face_index = getNumTEs() - 1;
        
        if (last_face_index > -1)
        {
                // ...if we hit the front, send one image id
                S8 face_index;
                LLColor4U coloru;
                for (face_index = 0; face_index <= last_face_index; face_index++)
                {
                        // Directly sending image_ids is not safe!
                        memcpy(&image_ids[face_index*16],getTE(face_index)->getID().mData,16);  /* Flawfinder: ignore */ 

                        // Cast LLColor4 to LLColor4U
                        coloru.setVec( getTE(face_index)->getColor() );

                        // Note:  This is an optimization to send common colors (1.f, 1.f, 1.f, 1.f)
                        // as all zeros.  However, the subtraction and addition must be done in unsigned
                        // byte space, not in float space, otherwise off-by-one errors occur. JC
                        colors[4*face_index]     = 255 - coloru.mV[0];
                        colors[4*face_index + 1] = 255 - coloru.mV[1];
                        colors[4*face_index + 2] = 255 - coloru.mV[2];
                        colors[4*face_index + 3] = 255 - coloru.mV[3];

                        const LLTextureEntry* te = getTE(face_index);
                        scale_s[face_index] = (F32) te->mScaleS;
                        scale_t[face_index] = (F32) te->mScaleT;
                        offset_s[face_index] = (S16) llround((llclamp(te->mOffsetS,-1.0f,1.0f) * (F32)0x7FFF)) ;
                        offset_t[face_index] = (S16) llround((llclamp(te->mOffsetT,-1.0f,1.0f) * (F32)0x7FFF)) ;
                        image_rot[face_index] = (S16) llround(((fmod(te->mRotation, F_TWO_PI)/F_TWO_PI) * (F32)0x7FFF));
                        bump[face_index] = te->getBumpShinyFullbright();
                        media_flags[face_index] = te->getMediaTexGen();
            glow[face_index] = (U8) llround((llclamp(te->getGlow(), 0.0f, 1.0f) * (F32)0xFF));
                }

                cur_ptr += packTEField(cur_ptr, (U8 *)image_ids, sizeof(LLUUID),last_face_index, MVT_LLUUID);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)colors, 4 ,last_face_index, MVT_U8);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)scale_s, 4 ,last_face_index, MVT_F32);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)scale_t, 4 ,last_face_index, MVT_F32);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)offset_s, 2 ,last_face_index, MVT_S16Array);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)offset_t, 2 ,last_face_index, MVT_S16Array);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)image_rot, 2 ,last_face_index, MVT_S16Array);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)bump, 1 ,last_face_index, MVT_U8);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)media_flags, 1 ,last_face_index, MVT_U8);
                *cur_ptr++ = 0;
                cur_ptr += packTEField(cur_ptr, (U8 *)glow, 1 ,last_face_index, MVT_U8);
        }

        dp.packBinaryData(packed_buffer, (S32)(cur_ptr - packed_buffer), "TextureEntry");
        return FALSE;
}

S32 LLPrimitive::unpackTEMessage(LLMessageSystem *mesgsys, char *block_name)
{
        return(unpackTEMessage(mesgsys,block_name,-1));
}

S32 LLPrimitive::unpackTEMessage(LLMessageSystem *mesgsys, char *block_name, const S32 block_num)
{
        // use a negative block_num to indicate a single-block read (a non-variable block)
        S32 retval = 0;
        const U32 MAX_TES = 32;

        // Avoid construction of 32 UUIDs per call. JC

        U8     image_data[MAX_TES*16];
        U8        colors[MAX_TES*4];
        F32    scale_s[MAX_TES];
        F32    scale_t[MAX_TES];
        S16    offset_s[MAX_TES];
        S16    offset_t[MAX_TES];
        S16    image_rot[MAX_TES];
        U8         bump[MAX_TES];
        U8         media_flags[MAX_TES];
    U8     glow[MAX_TES];
        
        const U32 MAX_TE_BUFFER = 4096;
        U8 packed_buffer[MAX_TE_BUFFER];
        U8 *cur_ptr = packed_buffer;

        U32 size;
        U32 face_count = 0;

        if (block_num < 0)
        {
                size = mesgsys->getSizeFast(block_name, _PREHASH_TextureEntry);
        }
        else
        {
                size = mesgsys->getSizeFast(block_name, block_num, _PREHASH_TextureEntry);
        }

        if (size == 0)
        {
                return retval;
        }

        if (block_num < 0)
        {
                mesgsys->getBinaryDataFast(block_name, _PREHASH_TextureEntry, packed_buffer, 0, 0, MAX_TE_BUFFER);
        }
        else
        {
                mesgsys->getBinaryDataFast(block_name, _PREHASH_TextureEntry, packed_buffer, 0, block_num, MAX_TE_BUFFER);
        }

        face_count = getNumTEs();

        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)image_data, 16, face_count, MVT_LLUUID);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)colors, 4, face_count, MVT_U8);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)scale_s, 4, face_count, MVT_F32);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)scale_t, 4, face_count, MVT_F32);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)offset_s, 2, face_count, MVT_S16Array);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)offset_t, 2, face_count, MVT_S16Array);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)image_rot, 2, face_count, MVT_S16Array);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)bump, 1, face_count, MVT_U8);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)media_flags, 1, face_count, MVT_U8);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)glow, 1, face_count, MVT_U8);
        
        LLColor4 color;
        LLColor4U coloru;
        for (U32 i = 0; i < face_count; i++)
        {
                retval |= setTETexture(i, ((LLUUID*)image_data)[i]);
                retval |= setTEScale(i, scale_s[i], scale_t[i]);
                retval |= setTEOffset(i, (F32)offset_s[i] / (F32)0x7FFF, (F32) offset_t[i] / (F32) 0x7FFF);
                retval |= setTERotation(i, ((F32)image_rot[i]/ (F32)0x7FFF) * F_TWO_PI);
                retval |= setTEBumpShinyFullbright(i, bump[i]);
                retval |= setTEMediaTexGen(i, media_flags[i]);
                retval |= setTEGlow(i, (F32)glow[i] / (F32)0xFF);
                coloru = LLColor4U(colors + 4*i);

                // Note:  This is an optimization to send common colors (1.f, 1.f, 1.f, 1.f)
                // as all zeros.  However, the subtraction and addition must be done in unsigned
                // byte space, not in float space, otherwise off-by-one errors occur. JC
                color.mV[VRED]          = F32(255 - coloru.mV[VRED])   / 255.f;
                color.mV[VGREEN]        = F32(255 - coloru.mV[VGREEN]) / 255.f;
                color.mV[VBLUE]         = F32(255 - coloru.mV[VBLUE])  / 255.f;
                color.mV[VALPHA]        = F32(255 - coloru.mV[VALPHA]) / 255.f;

                retval |= setTEColor(i, color);
        }

        return retval;
}

S32 LLPrimitive::unpackTEMessage(LLDataPacker &dp)
{
        // use a negative block_num to indicate a single-block read (a non-variable block)
        S32 retval = 0;
        const U32 MAX_TES = 32;

        // Avoid construction of 32 UUIDs per call
        static LLUUID image_ids[MAX_TES];

        U8     image_data[MAX_TES*16];
        U8         colors[MAX_TES*4];
        F32    scale_s[MAX_TES];
        F32    scale_t[MAX_TES];
        S16    offset_s[MAX_TES];
        S16    offset_t[MAX_TES];
        S16    image_rot[MAX_TES];
        U8         bump[MAX_TES];
        U8         media_flags[MAX_TES];
    U8     glow[MAX_TES];

        const U32 MAX_TE_BUFFER = 4096;
        U8 packed_buffer[MAX_TE_BUFFER];
        U8 *cur_ptr = packed_buffer;

        S32 size;
        U32 face_count = 0;

        if (!dp.unpackBinaryData(packed_buffer, size, "TextureEntry"))
        {
                retval = TEM_INVALID;
                llwarns << "Bad texture entry block!  Abort!" << llendl;
                return retval;
        }

        if (size == 0)
        {
                return retval;
        }

        face_count = getNumTEs();
        U32 i;

        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)image_data, 16, face_count, MVT_LLUUID);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)colors, 4, face_count, MVT_U8);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)scale_s, 4, face_count, MVT_F32);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)scale_t, 4, face_count, MVT_F32);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)offset_s, 2, face_count, MVT_S16Array);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)offset_t, 2, face_count, MVT_S16Array);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)image_rot, 2, face_count, MVT_S16Array);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)bump, 1, face_count, MVT_U8);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)media_flags, 1, face_count, MVT_U8);
        cur_ptr++;
        cur_ptr += unpackTEField(cur_ptr, packed_buffer+size, (U8 *)glow, 1, face_count, MVT_U8);

        for (i = 0; i < face_count; i++)
        {
                memcpy(image_ids[i].mData,&image_data[i*16],16);        /* Flawfinder: ignore */        
        }
        
        LLColor4 color;
        LLColor4U coloru;
        for (i = 0; i < face_count; i++)
        {
                retval |= setTETexture(i, image_ids[i]);
                retval |= setTEScale(i, scale_s[i], scale_t[i]);
                retval |= setTEOffset(i, (F32)offset_s[i] / (F32)0x7FFF, (F32) offset_t[i] / (F32) 0x7FFF);
                retval |= setTERotation(i, ((F32)image_rot[i]/ (F32)0x7FFF) * F_TWO_PI);
                retval |= setTEBumpShinyFullbright(i, bump[i]);
                retval |= setTEMediaTexGen(i, media_flags[i]);
                retval |= setTEGlow(i, (F32)glow[i] / (F32)0xFF);
                coloru = LLColor4U(colors + 4*i);

                // Note:  This is an optimization to send common colors (1.f, 1.f, 1.f, 1.f)
                // as all zeros.  However, the subtraction and addition must be done in unsigned
                // byte space, not in float space, otherwise off-by-one errors occur. JC
                color.mV[VRED]          = F32(255 - coloru.mV[VRED])   / 255.f;
                color.mV[VGREEN]        = F32(255 - coloru.mV[VGREEN]) / 255.f;
                color.mV[VBLUE]         = F32(255 - coloru.mV[VBLUE])  / 255.f;
                color.mV[VALPHA]        = F32(255 - coloru.mV[VALPHA]) / 255.f;

                retval |= setTEColor(i, color);
        }

        return retval;
}

void LLPrimitive::setTextureList(LLTextureEntry *listp)
{
        LLTextureEntry* old_texture_list = mTextureList;
        mTextureList = listp;
        delete[] old_texture_list;
}

//============================================================================

// Moved from llselectmgr.cpp
// BUG: Only works for boxes.
// Face numbering for flex boxes as of 1.14.2

// static
bool LLPrimitive::getTESTAxes(const U8 face, U32* s_axis, U32* t_axis)
{
        if (face == 0)
        {
                *s_axis = VX; *t_axis = VY;
                return true;
        }
        else if (face == 1)
        {
                *s_axis = VX; *t_axis = VZ;
                return true;
        }
        else if (face == 2)
        {
                *s_axis = VY; *t_axis = VZ;
                return true;
        }
        else if (face == 3)
        {
                *s_axis = VX; *t_axis = VZ;
                return true;
        }
        else if (face == 4)
        {
                *s_axis = VY; *t_axis = VZ;
                return true;
        }
        else if (face == 5)
        {
                *s_axis = VX; *t_axis = VY;
                return true;
        }
        else
        {
                // unknown face
                return false;
        }
}

//============================================================================

//static 
BOOL LLNetworkData::isValid(U16 param_type, U32 size)
{
        // ew - better mechanism needed
        
        switch(param_type)
        {
        case PARAMS_FLEXIBLE:
                return (size == 16);
        case PARAMS_LIGHT:
                return (size == 16);
        case PARAMS_SCULPT:
                return (size == 17);
        }
        
        return FALSE;
}

//============================================================================

LLLightParams::LLLightParams()
{
        mColor.setToWhite();
        mRadius = 10.f;
        mCutoff = 0.0f;
        mFalloff = 0.75f;

        mType = PARAMS_LIGHT;
}

BOOL LLLightParams::pack(LLDataPacker &dp) const
{
        LLColor4U color4u(mColor);
        dp.packColor4U(color4u, "color");
        dp.packF32(mRadius, "radius");
        dp.packF32(mCutoff, "cutoff");
        dp.packF32(mFalloff, "falloff");
        return TRUE;
}

BOOL LLLightParams::unpack(LLDataPacker &dp)
{
        LLColor4U color;
        dp.unpackColor4U(color, "color");
        setColor(LLColor4(color));

        F32 radius;
        dp.unpackF32(radius, "radius");
        setRadius(radius);

        F32 cutoff;
        dp.unpackF32(cutoff, "cutoff");
        setCutoff(cutoff);

        F32 falloff;
        dp.unpackF32(falloff, "falloff");
        setFalloff(falloff);
        
        return TRUE;
}

bool LLLightParams::operator==(const LLNetworkData& data) const
{
        if (data.mType != PARAMS_LIGHT)
        {
                return false;
        }
        const LLLightParams *param = (const LLLightParams*)&data;
        if (param->mColor != mColor ||
                param->mRadius != mRadius ||
                param->mCutoff != mCutoff ||
                param->mFalloff != mFalloff)
        {
                return false;
        }
        return true;
}

void LLLightParams::copy(const LLNetworkData& data)
{
        const LLLightParams *param = (LLLightParams*)&data;
        mType = param->mType;
        mColor = param->mColor;
        mRadius = param->mRadius;
        mCutoff = param->mCutoff;
        mFalloff = param->mFalloff;
}

//============================================================================

LLFlexibleObjectData::LLFlexibleObjectData()
{
        mSimulateLOD                            = FLEXIBLE_OBJECT_DEFAULT_NUM_SECTIONS;
        mGravity                                        = FLEXIBLE_OBJECT_DEFAULT_GRAVITY;
        mAirFriction                            = FLEXIBLE_OBJECT_DEFAULT_AIR_FRICTION;
        mWindSensitivity                        = FLEXIBLE_OBJECT_DEFAULT_WIND_SENSITIVITY;
        mTension                                        = FLEXIBLE_OBJECT_DEFAULT_TENSION;
        //mUsingCollisionSphere         = FLEXIBLE_OBJECT_DEFAULT_USING_COLLISION_SPHERE;
        //mRenderingCollisionSphere     = FLEXIBLE_OBJECT_DEFAULT_RENDERING_COLLISION_SPHERE;
        mUserForce                                      = LLVector3(0.f, 0.f, 0.f);

        mType = PARAMS_FLEXIBLE;
}

BOOL LLFlexibleObjectData::pack(LLDataPacker &dp) const
{
        // Custom, uber-svelte pack "softness" in upper bits of tension & drag
        U8 bit1 = (mSimulateLOD & 2) << 6;
        U8 bit2 = (mSimulateLOD & 1) << 7;
        dp.packU8((U8)(mTension*10.01f) + bit1, "tension");
        dp.packU8((U8)(mAirFriction*10.01f) + bit2, "drag");
        dp.packU8((U8)((mGravity+10.f)*10.01f), "gravity");
        dp.packU8((U8)(mWindSensitivity*10.01f), "wind");
        dp.packVector3(mUserForce, "userforce");
        return TRUE;
}

BOOL LLFlexibleObjectData::unpack(LLDataPacker &dp)
{
        U8 tension, friction, gravity, wind;
        U8 bit1, bit2;
        dp.unpackU8(tension, "tension");        bit1 = (tension >> 6) & 2;
                                                                                mTension = ((F32)(tension&0x7f))/10.f;
        dp.unpackU8(friction, "drag");          bit2 = (friction >> 7) & 1;
                                                                                mAirFriction = ((F32)(friction&0x7f))/10.f;
                                                                                mSimulateLOD = bit1 | bit2;
        dp.unpackU8(gravity, "gravity");        mGravity = ((F32)gravity)/10.f - 10.f;
        dp.unpackU8(wind, "wind");                      mWindSensitivity = ((F32)wind)/10.f;
        if (dp.hasNext())
        {
                dp.unpackVector3(mUserForce, "userforce");
        }
        else
        {
                mUserForce.setVec(0.f, 0.f, 0.f);
        }
        return TRUE;
}

bool LLFlexibleObjectData::operator==(const LLNetworkData& data) const
{
        if (data.mType != PARAMS_FLEXIBLE)
        {
                return false;
        }
        LLFlexibleObjectData *flex_data = (LLFlexibleObjectData*)&data;
        return (mSimulateLOD == flex_data->mSimulateLOD &&
                        mGravity == flex_data->mGravity &&
                        mAirFriction == flex_data->mAirFriction &&
                        mWindSensitivity == flex_data->mWindSensitivity &&
                        mTension == flex_data->mTension &&
                        mUserForce == flex_data->mUserForce);
                        //mUsingCollisionSphere == flex_data->mUsingCollisionSphere &&
                        //mRenderingCollisionSphere == flex_data->mRenderingCollisionSphere
}

void LLFlexibleObjectData::copy(const LLNetworkData& data)
{
        const LLFlexibleObjectData *flex_data = (LLFlexibleObjectData*)&data;
        mSimulateLOD = flex_data->mSimulateLOD;
        mGravity = flex_data->mGravity;
        mAirFriction = flex_data->mAirFriction;
        mWindSensitivity = flex_data->mWindSensitivity;
        mTension = flex_data->mTension;
        mUserForce = flex_data->mUserForce;
        //mUsingCollisionSphere = flex_data->mUsingCollisionSphere;
        //mRenderingCollisionSphere = flex_data->mRenderingCollisionSphere;
}


//============================================================================

LLSculptParams::LLSculptParams()
{
        mType = PARAMS_SCULPT;
        mSculptTexture.set(SCULPT_DEFAULT_TEXTURE);
        mSculptType = LL_SCULPT_TYPE_SPHERE;
}

BOOL LLSculptParams::pack(LLDataPacker &dp) const
{
        dp.packUUID(mSculptTexture, "texture");
        dp.packU8(mSculptType, "type");
        
        return TRUE;
}

BOOL LLSculptParams::unpack(LLDataPacker &dp)
{
        dp.unpackUUID(mSculptTexture, "texture");
        dp.unpackU8(mSculptType, "type");
        
        return TRUE;
}

bool LLSculptParams::operator==(const LLNetworkData& data) const
{
        if (data.mType != PARAMS_SCULPT)
        {
                return false;
        }
        
        const LLSculptParams *param = (const LLSculptParams*)&data;
        if ( (param->mSculptTexture != mSculptTexture) ||
                 (param->mSculptType != mSculptType) )
                 
        {
                return false;
        }
        
        return true;
}

void LLSculptParams::copy(const LLNetworkData& data)
{
        const LLSculptParams *param = (LLSculptParams*)&data;
        mSculptTexture = param->mSculptTexture;
        mSculptType = param->mSculptType;
}

---