llgenepool.cpp

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#include "llviewerprecompiledheaders.h"

#include "llgenepool.h"
#include "llxmltree.h"
#include "llvoavatar.h"
#include "lluuid.h"
#include "llagent.h"
#include "llviewervisualparam.h"
#include "llxmltree.h"
#include "llviewerimagelist.h"
#include "llappearance.h"

#include "lldir.h"

LLGenePool::LLGenePool()
        :
        mLoaded( FALSE )
{
}

LLGenePool::~LLGenePool()
{
        for( S32 i = 0; i < mArchetypes.count(); i++ )
        {
                delete mArchetypes[i];
        }
}


BOOL LLGenePool::load()
{
        char filename[MAX_PATH]; /*Flawfinder: ignore*/

        strncpy(filename,gDirUtilp->getExpandedFilename(LL_PATH_CHARACTER,"genepool.xml").c_str(), sizeof(filename) -1);                /*Flawfinder: ignore*/  
        filename[sizeof(filename) -1] = '\0';
        if( mLoaded )
        {
                return TRUE;
        }

        LLXmlTree xml_tree;
        BOOL success = xml_tree.parseFile( filename, FALSE );
        if( !success )
        {
                return FALSE;
        }

        LLXmlTreeNode* root = xml_tree.getRoot();
        if( !root )
        {
                return FALSE;
        }

        //-------------------------------------------------------------------------
        // <linden_genepool version="1.0"> (root)
        //-------------------------------------------------------------------------
        if( !root->hasName( "linden_genepool" ) )
        {
                llwarns << "Invalid linden_genepool file header: " << filename << llendl;
                return FALSE;
        }

        LLString version;
        static LLStdStringHandle version_string = LLXmlTree::addAttributeString("version");
        if( !root->getFastAttributeString( version_string, version ) || (version != "1.0") )
        {
                llwarns << "Invalid linden_genepool file version: " << version << llendl;
                return FALSE;
        }

        //-------------------------------------------------------------------------
        // <archetype>
        //-------------------------------------------------------------------------
        for (LLXmlTreeNode* child = root->getChildByName( "archetype" );
                 child;
                 child = root->getNextNamedChild())
        {
                if( !loadNodeArchetype( child ) )
                {
                        return FALSE;
                }
        }

        mLoaded = TRUE;
        return TRUE;
}


//-----------------------------------------------------------------------------
// loadNodeArchetype(): loads <archetype> node from XML tree
//-----------------------------------------------------------------------------
BOOL LLGenePool::loadNodeArchetype( LLXmlTreeNode* node )
{
        llassert( node->hasName( "archetype" ) );

        LLAppearance* archetype = new LLAppearance();
        BOOL success = TRUE;

        LLVOAvatar* avatar = gAgent.getAvatarObject();
        if( !avatar )
        {
                delete archetype;
                return FALSE;
        }

        LLXmlTreeNode* child;
        for (child = node->getChildByName( "param" );
                 child;
                 child = node->getNextNamedChild())
        {
                F32 value;
                static LLStdStringHandle value_string = LLXmlTree::addAttributeString("value");
                if( !child->getFastAttributeF32( value_string, value ) )
                {
                        llwarns << "avatar genepool file: <param> missing value attribute" << llendl;
                        success = FALSE;
                        break;
                }
                        
                S32 id;
                static LLStdStringHandle id_string = LLXmlTree::addAttributeString("id");
                if( !child->getFastAttributeS32( id_string, id ) )
                {
                        llwarns << "avatar genepool file: <param> missing id attribute" << llendl;
                        success = FALSE;
                        break;
                }

                LLVisualParam* param = avatar->getVisualParam( id );
                if( param )
                {
                        archetype->addParam( id, value );
                }
                else
                {
                        llwarns << "avatar genepool file: ignoring invalid <param> with id: " << id << llendl;
                }
        }
        for (child = node->getChildByName( "texture" );
                 child;
                 child = node->getNextNamedChild())
        {
                LLUUID uuid;
                static LLStdStringHandle uuid_string = LLXmlTree::addAttributeString("uuid");
                if( !child->getFastAttributeUUID( uuid_string, uuid ) )
                {
                        llwarns << "avatar genepool file: <texture> missing uuid attribute" << llendl;
                        success = FALSE;
                        break;
                }
                        
                S32 te;
                static LLStdStringHandle te_string = LLXmlTree::addAttributeString("te");
                if( !child->getFastAttributeS32( te_string, te ) )
                {
                        llwarns << "avatar genepool file: <texture> missing te attribute" << llendl;
                        success = FALSE;
                        break;
                }

                archetype->addTexture( te, uuid );
        }

        if( success )
        {
                mArchetypes.put( archetype );
        }
        else
        {
                delete archetype;
        }
        return success;
}

// Creates new parameters for the given wearable and applies them to the avatar.
void LLGenePool::spawn( EWearableType type )
{
        LLVOAvatar* avatar = gAgent.getAvatarObject();
        if( !avatar )
        {
                return;
        }
        
        if( !mLoaded )
        {
                if( !load() )
                {
                        return;
                }
        }

        if( mArchetypes.count() < 1 )
        {
                return;
        }

        // Only consider archetypes that have the same sex as you have already.
        LLVisualParam* male_param = avatar->getVisualParam( "male" );

        if (!male_param)
        {
                llwarns << "The hard coded \'male\' parameter passed to avatar->getVisualParam() in LLGenePool::spawn() is no longer valid."
                                << llendl;
                return;
        }

        S32 male_param_id = male_param->getID();
        F32 sex_weight = male_param->getWeight();

        S32 i = 0;
        S32 j = 0;
        S32 k = 0;
        const S32 MAX_CYCLES = 1000;
        S32 cycles = 0;

        F32 cur_sex_weight = 0.f;
        do
        {
                i = rand() % mArchetypes.count();
                cur_sex_weight = mArchetypes[i]->getParam(male_param_id, 0.f);
                cycles++;
                if (cur_sex_weight != sex_weight)
                {
                        break;
                }
        } while((cycles < MAX_CYCLES));

        if( cycles >= MAX_CYCLES )
        {
                return;
        }

        LLAppearance* arch1 = mArchetypes[i];
        LLAppearance* arch2 = NULL;
        LLAppearance* arch3 = NULL;

        if( mArchetypes.count() > 1 )
        {
                cycles = 0;
        do
        {
                j = rand() % mArchetypes.count();
                        cur_sex_weight = mArchetypes[j]->getParam(male_param_id, 0.f);

                        cycles++;
                } while( 
                        (cycles < MAX_CYCLES) && 
                        ( (i == j) || (cur_sex_weight != sex_weight) )
                );

                if( cycles >= MAX_CYCLES )
                {
                        return;
                }

        arch2 = mArchetypes[j];
        }

        if( mArchetypes.count() > 2 )
        {
                cycles = 0;
        do
        {
                k = rand() % mArchetypes.count();
                        cur_sex_weight = mArchetypes[k]->getParam(male_param_id, 0.f);
                        cycles++;
                } while( 
                        (cycles < MAX_CYCLES) && 
                        ( (i == k) || (j == k) || (cur_sex_weight != sex_weight) )
                );

                if( cycles >= MAX_CYCLES )
                {
                        return;
                }

        arch3 = mArchetypes[k];
        }

        // Lame generation of barycentric coordinates
        F32 b1 = F32( rand() ) / RAND_MAX;
        F32 b2 = (F32( rand() ) / RAND_MAX) * (1.f - b1);
        F32 b3 = 1.f - b1 - b2;

//      ESex old_sex = avatar->getSex();

        // Pull params
        for( LLVisualParam* param = avatar->getFirstVisualParam(); param; param = avatar->getNextVisualParam() )
        {
                if( (((LLViewerVisualParam*)param)->getWearableType() == type) && (param->getGroup() == VISUAL_PARAM_GROUP_TWEAKABLE) )
                {
                        S32 param_id = param->getID();

                        // don't try to blend male/female param...as fp innaccuracy will break the [0 | 1] semantics
                        if (param_id != male_param_id)
                        {

                                F32 weight1 = arch1->getParam( param_id, param->getDefaultWeight() );
                                F32 net_weight = weight1;
                                
                                if( arch2 && arch3 )
                                {
                                F32 weight2 = arch2->getParam( param_id, param->getDefaultWeight() );
                                F32 weight3 = arch3->getParam( param_id, param->getDefaultWeight() );
                                        net_weight = b1 * weight1 + b2 * weight2 + b3 * weight3;
                                }
                        
                                param->setAnimationTarget(net_weight, TRUE);
                        }
                }
        }

        // Find the archetype with the greatest influence
        LLAppearance* dominant_arch = arch1;
        if( (b2 > b1) && (b2 > b3) )
        {
                dominant_arch = arch2;
        }
        else
        if( (b3 > b1) && (b3 > b2) )
        {
                dominant_arch = arch3;
        }


        // Pull Textures from the dominant archetype
        for( S32 te = 0; te < LLVOAvatar::TEX_NUM_ENTRIES; te++ )
        {
                if( LLVOAvatar::isTextureIndexBaked( te ) )
                {
                        continue;
                }

                if( LLVOAvatar::getTEWearableType( te ) == type )
                {
                        LLUUID image_id = dominant_arch->getTexture( te );
                        if( image_id.isNull() )
                        {
                                image_id = LLVOAvatar::getDefaultTEImageID( te );
                        }

                        LLViewerImage* image = gImageList.getImage( image_id );
                        if( image )
                        {
                                avatar->setLocTexTE( te, image, TRUE );
                        }
                }
        }

//      avatar->setVisualParamWeight( "male", sex_weight );

        avatar->startAppearanceAnimation(TRUE, TRUE);
        avatar->updateVisualParams();

//      ESex new_sex = avatar->getSex();
//      if( old_sex != new_sex )
//      {
//              avatar->updateSexDependentLayerSets( TRUE );
//      }       
        
        avatar->updateMeshTextures();
    gAgent.sendAgentSetAppearance();
}

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