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Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
#include "trenderer.h"
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#include <qmutexlocker></qmutexlocker>
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#include "particlesmanager.h"
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/*
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EXPLANATION:
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ParticlesManager improves the old particles system as follows - the particles
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manager stores the
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last particles configuration which had some particle rendered by a thread.
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Under normal cicumstances, this means that every thread has the particles
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configuration that rendered
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last. In case a trail was set, such frame is that beyond the trail.
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This managemer works well on the assumption that each thread builds particle in
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an incremental timeline.
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*/
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//--------------------------------------------------------------------------------------------------
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DEFINE_CLASS_CODE(ParticlesManager::FxData, 110)
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//--------------------------------------------------------------------------------------------------
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typedef std::map<double, particlesmanager::framedata=""> FramesMap;</double,>
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//************************************************************************************************
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//    Preliminaries
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//************************************************************************************************
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class ParticlesManagerGenerator : public TRenderResourceManagerGenerator {
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public:
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  ParticlesManagerGenerator() : TRenderResourceManagerGenerator(true) {}
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  TRenderResourceManager *operator()(void) override { return new ParticlesManager; }
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};
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MANAGER_FILESCOPE_DECLARATION(ParticlesManager, ParticlesManagerGenerator);
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//************************************************************************************************
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//    FrameData implementation
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//************************************************************************************************
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ParticlesManager::FrameData::FrameData(FxData *fxData)
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    : m_fxData(fxData)
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    , m_frame((std::numeric_limits<int>::min)())</int>
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    , m_calculated(false)
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    , m_maxTrail(-1)
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    , m_totalParticles(0) {
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  m_fxData->addRef();
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}
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//-------------------------------------------------------------------------
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ParticlesManager::FrameData::~FrameData() { m_fxData->release(); }
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//-------------------------------------------------------------------------
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void ParticlesManager::FrameData::buildMaxTrail() {
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  // Store the maximum trail of each particle
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  std::list<particle>::iterator it;</particle>
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  for (it = m_particles.begin(); it != m_particles.end(); ++it)
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    m_maxTrail = std::max(m_maxTrail, it->trail);
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}
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//-------------------------------------------------------------------------
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void ParticlesManager::FrameData::clear() {
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  m_frame = (std::numeric_limits<int>::min)();</int>
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  m_particles.clear();
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  m_random         = TRandom();
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  m_calculated     = false;
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  m_maxTrail       = -1;
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  m_totalParticles = 0;
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}
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//************************************************************************************************
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//    FxData implementation
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//************************************************************************************************
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ParticlesManager::FxData::FxData() : TSmartObject(m_classCode) {}
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//************************************************************************************************
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//    ParticlesContainer implementation
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//************************************************************************************************
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ParticlesManager *ParticlesManager::instance() {
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  return static_cast<particlesmanager *="">(</particlesmanager>
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      ParticlesManager::gen()->getManager(TRenderer::renderId()));
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}
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//-------------------------------------------------------------------------
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ParticlesManager::ParticlesManager() : m_renderStatus(-1) {}
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//-------------------------------------------------------------------------
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ParticlesManager::~ParticlesManager() {
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  // Release all fxDatas
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  std::map<unsigned *="" fxdata="" long,="">::iterator it, end = m_fxs.end();</unsigned>
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  for (it = m_fxs.begin(); it != end; ++it) it->second->release();
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}
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//-------------------------------------------------------------------------
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void ParticlesManager::onRenderStatusStart(int renderStatus) {
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  m_renderStatus = renderStatus;
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}
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//-------------------------------------------------------------------------
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ParticlesManager::FrameData *ParticlesManager::data(unsigned long fxId) {
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  QMutexLocker locker(&m_mutex);
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  std::map<unsigned *="" fxdata="" long,="">::iterator it = m_fxs.find(fxId);</unsigned>
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  if (it == m_fxs.end()) {
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    it = m_fxs.insert(std::make_pair(fxId, new FxData)).first;
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    it->second->addRef();
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  }
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  FxData *fxData = it->second;
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  FrameData *d   = fxData->m_frames.localData();
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  if (!d) {
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    d = new FrameData(fxData);
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    fxData->m_frames.setLocalData(d);
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  }
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  return d;
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}