#include "stdfx.h"

//#include "tfxparam.h"

#include "trop.h"

//===================================================================

class PremultiplyFx : public TStandardRasterFx

{

	FX_PLUGIN_DECLARATION(PremultiplyFx)

	TRasterFxPort m_input;

public:

	PremultiplyFx() { addInputPort("Source", m_input); }

	~PremultiplyFx(){};

	bool doGetBBox(double frame, TRectD &bBox, const TRenderSettings &info)

	{

		if (m_input.isConnected())

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

		else {

			bBox = TRectD();

			return false;

		}

	}

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

	bool canHandle(const TRenderSettings &info, double frame) { return true; }

};

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

void PremultiplyFx::doCompute(TTile &tile, double frame,

							  const TRenderSettings &ri)

{

	if (!m_input.isConnected())

		return;

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

	TRop::premultiply(tile.getRaster());

}

FX_PLUGIN_IDENTIFIER(PremultiplyFx, "premultiplyFx");