#include "stdfx.h"

#include "tfxparam.h"

#include "trop.h"

class GammaFx final : public TStandardRasterFx {

  FX_PLUGIN_DECLARATION(GammaFx)

  TRasterFxPort m_input;

  TDoubleParamP m_gamma;

public:

  GammaFx() : m_gamma(1.0) {

    bindParam(this, "value", m_gamma);

    addInputPort("Source", m_input);

    // m_gamma->setValueRange(0, std::numeric_limits<double>::max());</double>

    m_gamma->setValueRange(0.0, 200.0);

    enableComputeInFloat(true);

  }

  ~GammaFx(){};

  bool doGetBBox(double frame, TRectD &bBox,

                 const TRenderSettings &info) override {

    if (m_input.isConnected())

      return m_input->doGetBBox(frame, bBox, info);

    else {

      bBox = TRectD();

      return false;

    }

  };

  void doCompute(TTile &tile, double frame, const TRenderSettings &) override;

  bool canHandle(const TRenderSettings &info, double frame) override {

    return true;

  }

};

//-------------------------------------------------------------------

void GammaFx::doCompute(TTile &tile, double frame, const TRenderSettings &ri) {

  if (!m_input.isConnected()) return;

  m_input->compute(tile, frame, ri);

  double gamma = m_gamma->getValue(frame);

  if (gamma == 0.0) gamma = 0.01;

  TRop::gammaCorrect(tile.getRaster(), gamma);

}

//------------------------------------------------------------------

FX_PLUGIN_IDENTIFIER(GammaFx, "gammaFx")