File indexing completed on 2025-01-19 09:46:02

 /*
     SPDX-FileCopyrightText: 2008 Akarsh Simha <akarshsimha@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "starblocklist.h"
 
 #include "binfilehelper.h"
 #include "deepstarcomponent.h"
 #include "starblock.h"
 #include "starcomponent.h"
 
 #ifdef KSTARS_LITE
 #include "skymaplite.h"
 #include "kstarslite/skyitems/skynodes/pointsourcenode.h"
 #endif
 
 #include <QDebug>
 
 StarBlockList::StarBlockList(const Trixel &tr, DeepStarComponent *parent)
 {
     trixel       = tr;
     this->parent = parent;
     staticStars  = parent->hasStaticStars();
 }
 
 int StarBlockList::releaseBlock(StarBlock *block)
 {
     if (block != blocks[nBlocks - 1].get())
         qDebug() << Q_FUNC_INFO << "ERROR: Trying to release a block which is not the last block! Trixel = " << trixel;
 
     else if (blocks.size() > 0)
     {
 #ifdef KSTARS_LITE
         for (int i = 0; i < block->getStarCount(); ++i)
         {
             PointSourceNode *node = block->star(i)->starNode;
             if (node)
             {
                 SkyMapLite::Instance()->deleteSkyNode(node);
                 block->star(i)->starNode = 0;
             }
         }
 #endif
         blocks.removeLast();
         nBlocks--;
         nStars -= block->getStarCount();
 
         readOffset -= parent->getStarReader()->guessRecordSize() * block->getStarCount();
         if (nBlocks <= 0)
             faintMag = -5.0;
         else
             faintMag = blocks[nBlocks - 1]->faintMag;
 
         return 1;
     }
 
     return 0;
 }
 
 bool StarBlockList::fillToMag(float maglim)
 {
     // TODO: Remove staticity of BinFileHelper
     BinFileHelper *dSReader;
     StarBlockFactory *SBFactory;
     StarData stardata;
     DeepStarData deepstardata;
     FILE *dataFile;
 
     dSReader  = parent->getStarReader();
     dataFile  = dSReader->getFileHandle();
     SBFactory = StarBlockFactory::Instance();
 
     if (staticStars)
         return false;
 
     if (faintMag >= maglim)
         return true;
 
     if (!dataFile)
     {
         qDebug() << Q_FUNC_INFO << "dataFile not opened!";
         return false;
     }
 
     Trixel trixelId =
         trixel; //( ( trixel < 256 ) ? ( trixel + 256 ) : ( trixel - 256 ) ); // Trixel ID on datafile is assigned differently
 
     if (readOffset <= 0)
         readOffset = dSReader->getOffset(trixelId);
 
     Q_ASSERT(nBlocks == (unsigned int)blocks.size());
 
     BinFileHelper::unsigned_KDE_fseek(dataFile, readOffset, SEEK_SET);
 
     /*
     qDebug() << Q_FUNC_INFO << "Reading trixel" << trixel << ", id on disk =" << trixelId << ", currently nStars =" << nStars
              << ", record count =" << dSReader->getRecordCount( trixelId ) << ", first block = " << blocks[0]->getStarCount()
              << "to maglim =" << maglim << "with current faintMag =" << faintMag;
     */
 
     while (maglim >= faintMag && nStars < dSReader->getRecordCount(trixelId))
     {
         int ret = 0;
 
         if (nBlocks == 0 || blocks[nBlocks - 1]->isFull())
         {
             std::shared_ptr<StarBlock> newBlock = SBFactory->getBlock();
 
             if (!newBlock.get())
             {
                 qWarning() << "ERROR: Could not get a new block from StarBlockFactory::getBlock() in trixel " << trixel
                            << ", while trying to create block #" << nBlocks + 1;
                 return false;
             }
             blocks.append(newBlock);
             blocks[nBlocks]->parent = this;
             if (nBlocks == 0)
                 SBFactory->markFirst(blocks[0]);
             else if (!SBFactory->markNext(blocks[nBlocks - 1], blocks[nBlocks]))
                 qWarning() << "ERROR: markNext() failed on block #" << nBlocks + 1 << "in trixel" << trixel;
 
             ++nBlocks;
         }
         // TODO: Make this more general
         if (dSReader->guessRecordSize() == 32)
         {
             ret = fread(&stardata, sizeof(StarData), 1, dataFile);
             if (dSReader->getByteSwap())
                 DeepStarComponent::byteSwap(&stardata);
             readOffset += sizeof(StarData);
             blocks[nBlocks - 1]->addStar(stardata);
         }
         else
         {
             ret = fread(&deepstardata, sizeof(DeepStarData), 1, dataFile);
             if (dSReader->getByteSwap())
                 DeepStarComponent::byteSwap(&deepstardata);
             readOffset += sizeof(DeepStarData);
             blocks[nBlocks - 1]->addStar(deepstardata);
         }
 
         /*
           if( faintMag > -5.0 && fabs(faintMag - blocks[nBlocks - 1]->getFaintMag()) > 0.2 ) {
           qDebug() << Q_FUNC_INFO << "Encountered a jump from mag" << faintMag << "to mag"
           << blocks[nBlocks - 1]->getFaintMag() << "in trixel" << trixel;
           }
         */
         faintMag = blocks[nBlocks - 1]->getFaintMag();
         nStars++;
     }
 
     return ((maglim < faintMag) ? true : false);
 }
 
 void StarBlockList::setStaticBlock(std::shared_ptr<StarBlock> &block)
 {
     if (!block)
         return;
     if (nBlocks == 0)
     {
         blocks.append(block);
     }
     else
         blocks[0] = block;
 
     blocks[0]->parent = this;
     faintMag          = blocks[0]->faintMag;
     nBlocks           = 1;
     staticStars       = true;
 }