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#include "iwa_bokehfx.h"
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#include "trop.h"
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#include "tdoubleparam.h"
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#include "trasterfx.h"
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#include "trasterimage.h"
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#include "kiss_fft.h"
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#include <qpair></qpair>
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#include <qvector></qvector>
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#include <qreadwritelock></qreadwritelock>
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#include <qmutexlocker></qmutexlocker>
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#include <qmap></qmap>
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namespace {
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QReadWriteLock lock;
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QMutex fx_mutex;
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bool isFurtherLayer(const QPair<int, double=""> val1,</int,>
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                    const QPair<int, double=""> val2) {</int,>
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  // if the layers are at the same depth, then put the layer with smaller index
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  // above
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  if (val1.second == val2.second) return val1.first > val2.first;
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  return val1.second > val2.second;
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}
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template <typename t=""></typename>
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TRasterGR8P allocateRasterAndLock(T** buf, TDimensionI dim) {
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  TRasterGR8P ras(dim.lx * sizeof(T), dim.ly);
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  ras->lock();
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  *buf = (T*)ras->getRawData();
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  return ras;
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}
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// release all registered raster memories and free all fft plans
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void releaseAllRastersAndPlans(QList<trastergr8p>& rasterList,</trastergr8p>
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                               QList<kiss_fftnd_cfg>& planList) {</kiss_fftnd_cfg>
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  for (int r = 0; r < rasterList.size(); r++) rasterList.at(r)->unlock();
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  for (int p = 0; p < planList.size(); p++) kiss_fft_free(planList.at(p));
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}
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};  // namespace
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//--------------------------------------------
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// Iwa_BokehFx
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//--------------------------------------------
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Iwa_BokehFx::Iwa_BokehFx() {
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  // Bind the common parameters
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  bindParam(this, "on_focus_distance", m_onFocusDistance, false);
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  bindParam(this, "bokeh_amount", m_bokehAmount, false);
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  bindParam(this, "hardness", m_hardness, false);
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  // Bind the layer parameters
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  for (int layer = 0; layer < LAYER_NUM; layer++) {
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    m_layerParams[layer].m_distance        = TDoubleParamP(0.5);
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    m_layerParams[layer].m_bokehAdjustment = TDoubleParamP(1.0);
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    // The premultiply option is not displayed anymore for simplicity
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    m_layerParams[layer].m_premultiply = TBoolParamP(false);
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    std::string str = QString("Source%1").arg(layer + 1).toStdString();
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    addInputPort(str, m_layerParams[layer].m_source);
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    bindParam(this, QString("distance%1").arg(layer + 1).toStdString(),
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              m_layerParams[layer].m_distance, false);
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    bindParam(this, QString("bokeh_adjustment%1").arg(layer + 1).toStdString(),
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              m_layerParams[layer].m_bokehAdjustment, false);
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    bindParam(this, QString("premultiply%1").arg(layer + 1).toStdString(),
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              m_layerParams[layer].m_premultiply, false);
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    m_layerParams[layer].m_distance->setValueRange(0.0, 1.0);
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    m_layerParams[layer].m_bokehAdjustment->setValueRange(0.0, 2.0);
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  }
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}
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void Iwa_BokehFx::doCompute(TTile& tile, double frame,
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                            const TRenderSettings& settings) {
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  // If the iris is not connected, then do nothing
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  if (!m_iris.isConnected()) {
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    tile.getRaster()->clear();
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    return;
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  }
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  // If none of the source ports is connected, then do nothing
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  bool sourceIsConnected = false;
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  for (int i = 0; i < LAYER_NUM; i++) {
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    if (m_layerParams[i].m_source.isConnected()) {
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      sourceIsConnected = true;
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      break;
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    }
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  }
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  if (!sourceIsConnected) {
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    tile.getRaster()->clear();
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    return;
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  }
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  // Sort source layers by distance
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  QList<int> sourceIndices = getSortedSourceIndices(frame);</int>
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  // Get the pixel size of bokehAmount ( referenced ino_blur.cpp )
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  double bokehPixelAmount = BokehUtils::getBokehPixelAmount(
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      m_bokehAmount->getValue(frame), settings.m_affine);
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  // Compute the bokeh size for each layer. The source tile will be enlarged by
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  // the largest size of them.
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  double maxIrisSize;
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  QMap<int, double=""> irisSizes =</int,>
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      getIrisSizes(frame, sourceIndices, bokehPixelAmount, maxIrisSize);
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  int margin = tceil(maxIrisSize / 2.0);
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  // Range of computation
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  TRectD _rectOut(tile.m_pos, TDimensionD(tile.getRaster()->getLx(),
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                                          tile.getRaster()->getLy()));
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  _rectOut = _rectOut.enlarge(static_cast<double>(margin));</double>
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  TDimensionI dimOut(static_cast<int>(_rectOut.getLx() + 0.5),</int>
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                     static_cast<int>(_rectOut.getLy() + 0.5));</int>
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  // Enlarge the size to the "fast size" for kissfft which has no factors other
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  // than 2,3, or 5.
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  if (dimOut.lx < 10000 && dimOut.ly < 10000) {
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    int new_x = kiss_fft_next_fast_size(dimOut.lx);
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    int new_y = kiss_fft_next_fast_size(dimOut.ly);
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    // margin should be integer
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    while ((new_x - dimOut.lx) % 2 != 0)
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      new_x = kiss_fft_next_fast_size(new_x + 1);
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    while ((new_y - dimOut.ly) % 2 != 0)
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      new_y = kiss_fft_next_fast_size(new_y + 1);
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    _rectOut = _rectOut.enlarge(static_cast<double>(new_x - dimOut.lx) / 2.0,</double>
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                                static_cast<double>(new_y - dimOut.ly) / 2.0);</double>
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    dimOut.lx = new_x;
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    dimOut.ly = new_y;
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  }
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  //----------------------------
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  // Compute the input tiles first
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  QMap<int, ttile*=""> sourceTiles;</int,>
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  TRenderSettings infoOnInput(settings);
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  infoOnInput.m_bpp = 64;
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  for (auto index : sourceIndices) {
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    TTile* layerTile = new TTile();
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    m_layerParams[index].m_source->allocateAndCompute(
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        *layerTile, _rectOut.getP00(), dimOut, 0, frame, infoOnInput);
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    sourceTiles[index] = layerTile;
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  }
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  // Get the original size of Iris image
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  TRectD irisBBox;
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  m_iris->getBBox(frame, irisBBox, settings);
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  // Compute the iris tile.
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  TTile irisTile;
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  m_iris->allocateAndCompute(
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      irisTile, irisBBox.getP00(),
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      TDimension(static_cast<int>(irisBBox.getLx() + 0.5),</int>
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                 static_cast<int>(irisBBox.getLy() + 0.5)),</int>
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      tile.getRaster(), frame, settings);
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  double masterHardness = m_hardness->getValue(frame);
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  QMap<int, char*="" unsigned=""> ctrls;</int,>
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  QList<layervalue> layerValues;</layervalue>
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  for (auto index : sourceIndices) {
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    LayerValue layerValue;
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    layerValue.sourceTile = sourceTiles[index];
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    layerValue.premultiply =
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        m_layerParams[index].m_premultiply->getValue() ? 1 : 0;
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    layerValue.layerHardness = masterHardness;
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    layerValue.depth_ref     = 0;
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    layerValue.irisSize      = irisSizes.value(index);
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    layerValue.distance      = m_layerParams[index].m_distance->getValue(frame);
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    layerValue.bokehAdjustment =
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        m_layerParams[index].m_bokehAdjustment->getValue(frame);
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    layerValues.append(layerValue);
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  }
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  Iwa_BokehCommonFx::doFx(tile, frame, settings, bokehPixelAmount, margin,
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                          dimOut, irisBBox, irisTile, layerValues, ctrls);
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  qDeleteAll(sourceTiles);
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}
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// Sort the layers by distances
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QList<int> Iwa_BokehFx::getSortedSourceIndices(double frame) {</int>
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  QList<qpair<int, double="">> usedSourceList;</qpair<int,>
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  // Gather the source layers connected to the ports
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  for (int i = 0; i < LAYER_NUM; i++) {
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    if (m_layerParams[i].m_source.isConnected())
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      usedSourceList.push_back(
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          QPair<int, double="">(i, m_layerParams[i].m_distance->getValue(frame)));</int,>
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  }
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  if (usedSourceList.empty()) return QList<int>();</int>
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  // Sort the layers in descending distance order
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  std::sort(usedSourceList.begin(), usedSourceList.end(), isFurtherLayer);
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  QList<int> indicesList;</int>
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  for (int i = 0; i < usedSourceList.size(); i++) {
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    indicesList.push_back(usedSourceList.at(i).first);
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  }
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  return indicesList;
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}
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// Compute the bokeh size for each layer. The source tile will be enlarged by
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// the largest size of them.
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QMap<int, double=""> Iwa_BokehFx::getIrisSizes(const double frame,</int,>
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                                            const QList<int> sourceIndices,</int>
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                                            const double bokehPixelAmount,
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                                            double& maxIrisSize) {
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  double max = 0.0;
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  QMap<int, double=""> irisSizes;</int,>
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  for (int s = 0; s < sourceIndices.size(); s++) {
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    int index       = sourceIndices.at(s);
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    double irisSize = (m_onFocusDistance->getValue(frame) -
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                       m_layerParams[index].m_distance->getValue(frame)) *
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                      bokehPixelAmount *
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                      m_layerParams[index].m_bokehAdjustment->getValue(frame);
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    irisSizes[index] = irisSize;
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    // Update the maximum size
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    if (max < std::abs(irisSize)) max = std::abs(irisSize);
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  }
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  maxIrisSize = max;
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  return irisSizes;
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}
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FX_PLUGIN_IDENTIFIER(Iwa_BokehFx, "iwa_BokehFx")