Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
Toshihiro Shimizu 890ddd
#include "stdfx.h"
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#include "tfxparam.h"
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#include "tpixelutils.h"
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#include "tparamset.h"
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#include "ttonecurveparam.h"
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#include "tcurves.h"
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//===================================================================
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namespace {
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int getCubicYfromX(TCubic c, int x, double &s0, double &s1) {
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  double s  = (s1 + s0) * 0.5;
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  TPointD p = c.getPoint(s);
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  if (areAlmostEqual(double(x), p.x, 0.001)) return tround(p.y);
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  if (x < p.x)
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    return getCubicYfromX(c, x, s0, s);
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  else
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    return getCubicYfromX(c, x, s, s1);
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}
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int getLinearYfromX(TSegment t, int x, double &s0, double &s1) {
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  double s  = (s1 + s0) * 0.5;
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  TPointD p = t.getPoint(s);
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  if (areAlmostEqual(double(x), p.x, 0.001)) return tround(p.y);
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  if (x < p.x)
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    return getLinearYfromX(t, x, s0, s);
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  else
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    return getLinearYfromX(t, x, s, s1);
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}
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void truncateSpeeds(double aFrame, double bFrame, TPointD &aSpeedTrunc,
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                    TPointD &bSpeedTrunc) {
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  double deltaX = bFrame - aFrame;
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  if (aSpeedTrunc.x < 0) aSpeedTrunc.x = 0;
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  if (bSpeedTrunc.x > 0) bSpeedTrunc.x = 0;
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  if (aFrame + aSpeedTrunc.x > bFrame) {
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    if (aSpeedTrunc.x != 0) {
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      aSpeedTrunc = aSpeedTrunc * (deltaX / aSpeedTrunc.x);
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    }
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  }
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  if (bFrame + bSpeedTrunc.x < aFrame) {
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    if (bSpeedTrunc.x != 0) {
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      bSpeedTrunc = -bSpeedTrunc * (deltaX / bSpeedTrunc.x);
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    }
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  }
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}
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template <typename pixel,="" t="" typename=""></typename>
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void fill_lut(QList<tpointd> points, std::vector<t> &lut, bool isLinear) {</t></tpointd>
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  int i;
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  TPointD p0 = points.at(0);
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  TCubic cubic;
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  TSegment segment;
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  double s0 = 0.0;
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  for (i = 1; i < points.size(); i++) {
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    TPointD p1 = points.at(i);
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    TPointD p2 = points.at(++i);
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    TPointD p3 = points.at(++i);
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    if (!isLinear) {
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      // truncate speed
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      TPointD aSpeed(p1 - p0);
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      TPointD bSpeed(p2 - p3);
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      truncateSpeeds(p0.x, p3.x, aSpeed, bSpeed);
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      cubic.setP0(p0);
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      cubic.setP1(p0 + aSpeed);
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      cubic.setP2(p3 + bSpeed);
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      cubic.setP3(p3);
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      int x = (int)p0.x;
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      while (x < 0) x++;
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      while (x < p3.x && x < PIXEL::maxChannelValue + 1) {
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        double s1 = 1.0;
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        int y     = getCubicYfromX(cubic, x, s0, s1);
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        if (y > PIXEL::maxChannelValue)
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          y = PIXEL::maxChannelValue;
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        else if (y < 0)
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          y = 0;
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        lut[x] = y;
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        x++;
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      }
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    } else {
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      segment.setP0(p0);
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      segment.setP1(p3);
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      int x = (int)p0.x;
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      while (x < 0) x++;
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      while (x < p3.x && x < PIXEL::maxChannelValue + 1) {
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        double s1 = 1.0;
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        int y     = getLinearYfromX(segment, x, s0, s1);
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        if (y > PIXEL::maxChannelValue)
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          y = PIXEL::maxChannelValue;
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        else if (y < 0)
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          y = 0;
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        lut[x] = y;
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        x++;
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      }
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    }
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    p0 = p3;
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  }
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}
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}  // Namespace
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//===================================================================
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class ToneCurveFx final : public TStandardRasterFx {
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  FX_PLUGIN_DECLARATION(ToneCurveFx)
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  TRasterFxPort m_input;
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  TToneCurveParamP m_toneCurve;
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public:
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  ToneCurveFx() : m_toneCurve(new TToneCurveParam()) {
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    bindParam(this, "curve", m_toneCurve);
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    addInputPort("Source", m_input);
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  }
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  ~ToneCurveFx(){};
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  bool canHandle(const TRenderSettings &info, double frame) override {
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    return true;
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  }
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  bool doGetBBox(double frame, TRectD &bBox,
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                 const TRenderSettings &info) override {
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    if (m_input.isConnected())
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      return m_input->doGetBBox(frame, bBox, info);
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    else {
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      bBox = TRectD();
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      return false;
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    }
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  }
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  void doCompute(TTile &tile, double frame, const TRenderSettings &ri) override;
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};
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//-------------------------------------------------------------------
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namespace {
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void update_param(double ¶m, TRaster32P ras) { return; }
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void update_param(double ¶m, TRaster64P ras) {
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  param = param * 257;
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  return;
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}
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QList<tpointd> getParamSetPoints(const TParamSet *paramSet, int frame) {</tpointd>
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  QList<tpointd> points;</tpointd>
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  int i;
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  for (i = 0; i < paramSet->getParamCount(); i++) {
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    TPointParamP pointParam = paramSet->getParam(i);
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    TPointD point           = pointParam->getValue(frame);
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    int x                   = (int)point.x;
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    int y                   = (int)point.y;
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    points.push_back(TPointD(x, y));
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  }
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  return points;
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}
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}  // namespace
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//-------------------------------------------------------------------
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template <typename channel_type="" pixel,="" typename=""></typename>
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void doToneCurveFx(TRasterPT<pixel> ras, double frame,</pixel>
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                   const TToneCurveParam *toneCurveParam) {
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  QList<qlist<tpointd>> pointsList;</qlist<tpointd>
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  int e;
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  for (e = 0; e < 6; e++) {
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    TParamSet *paramSet =
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        toneCurveParam->getParamSet(TToneCurveParam::ToneChannel(e))
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            .getPointer();
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    QList<tpointd> points = getParamSetPoints(paramSet, frame);</tpointd>
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    pointsList.push_back(points);
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  }
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  bool isLinear = toneCurveParam->isLinear();
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  int i, t;
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  for (i = 0; i < pointsList.size(); i++) {
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    QList<tpointd> &points = pointsList[i];</tpointd>
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    for (t = 0; t < points.size(); t++) {
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      TPointD &p = points[t];
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      double &x  = p.x;
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      double &y  = p.y;
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      update_param(x, ras);
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      update_param(y, ras);
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    }
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  }
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  std::vector<channel_type> rgbaLut(PIXEL::maxChannelValue + 1);</channel_type>
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  std::vector<channel_type> rgbLut(PIXEL::maxChannelValue + 1);</channel_type>
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  std::vector<channel_type> rLut(PIXEL::maxChannelValue + 1);</channel_type>
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  std::vector<channel_type> gLut(PIXEL::maxChannelValue + 1);</channel_type>
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  std::vector<channel_type> bLut(PIXEL::maxChannelValue + 1);</channel_type>
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  std::vector<channel_type> aLut(PIXEL::maxChannelValue + 1);</channel_type>
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  fill_lut<pixel, channel_type="">(pointsList[0], rgbaLut, isLinear);</pixel,>
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  fill_lut<pixel, channel_type="">(pointsList[1], rgbLut, isLinear);</pixel,>
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  fill_lut<pixel, channel_type="">(pointsList[2], rLut, isLinear);</pixel,>
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  fill_lut<pixel, channel_type="">(pointsList[3], gLut, isLinear);</pixel,>
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  fill_lut<pixel, channel_type="">(pointsList[4], bLut, isLinear);</pixel,>
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  fill_lut<pixel, channel_type="">(pointsList[5], aLut, isLinear);</pixel,>
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  int lx = ras->getLx();
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  int ly = ras->getLy();
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  int j;
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  ras->lock();
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  for (j = 0; j < ly; j++) {
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    PIXEL *pix    = ras->pixels(j);
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    PIXEL *endPix = pix + lx;
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    while (pix < endPix) {
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      if (pix->m != 0 && pix->m != PIXEL::maxChannelValue)
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        *pix = depremultiply(*pix);
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      pix->r = rLut[(int)(pix->r)];
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      pix->g = gLut[(int)(pix->g)];
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      pix->b = bLut[(int)(pix->b)];
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      pix->m = aLut[(int)(pix->m)];
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      pix->r = rgbLut[(int)(pix->r)];
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      pix->g = rgbLut[(int)(pix->g)];
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      pix->b = rgbLut[(int)(pix->b)];
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      pix->r = rgbaLut[(int)(pix->r)];
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      pix->g = rgbaLut[(int)(pix->g)];
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      pix->b = rgbaLut[(int)(pix->b)];
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      pix->m = rgbaLut[(int)(pix->m)];
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      if (pix->m != 0 && pix->m != PIXEL::maxChannelValue)
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        *pix = premultiply(*pix);
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      pix++;
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    }
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  }
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  ras->unlock();
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}
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//-------------------------------------------------------------------
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void ToneCurveFx::doCompute(TTile &tile, double frame,
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                            const TRenderSettings &ri) {
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  if (!m_input.isConnected()) return;
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  m_input->compute(tile, frame, ri);
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  TRaster32P raster32 = tile.getRaster();
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  if (raster32)
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    doToneCurveFx<tpixel32, uchar="">(raster32, frame, m_toneCurve.getPointer());</tpixel32,>
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  else {
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    TRaster64P raster64 = tile.getRaster();
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    if (raster64)
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      doToneCurveFx<tpixel64, ushort="">(raster64, frame,</tpixel64,>
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                                      m_toneCurve.getPointer());
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    else
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      throw TException("Brightness&Contrast: unsupported Pixel Type");
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  }
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}
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FX_PLUGIN_IDENTIFIER(ToneCurveFx, "toneCurveFx");