#include "texception.h"
#include "tfxparam.h"
#include "stdfx.h"
#include "tspectrumparam.h"
#include "tparamuiconcept.h"
#undef max
//===================================================================
class SquareGradientFx : public TStandardZeraryFx {
FX_PLUGIN_DECLARATION(SquareGradientFx)
TSpectrumParamP m_colors;
TDoubleParamP m_size;
public:
SquareGradientFx() : m_size(200.0) {
m_size->setMeasureName("fxLength");
TSpectrum::ColorKey colors[] = {
TSpectrum::ColorKey(0, TPixel32::White),
// TSpectrum::ColorKey(0.5,TPixel32::Yellow),
TSpectrum::ColorKey(1, TPixel32::Red)};
m_colors = TSpectrumParamP(tArrayCount(colors), colors);
bindParam(this, "colors", m_colors);
bindParam(this, "size", m_size);
m_size->setValueRange(0, std::numeric_limits<double>::max());
}
~SquareGradientFx(){};
bool doGetBBox(double, TRectD &bBox, const TRenderSettings &info) override {
bBox = TConsts::infiniteRectD;
return true;
};
void doCompute(TTile &tile, double frame, const TRenderSettings &ri) override;
bool canHandle(const TRenderSettings &info, double frame) override { return true; }
void getParamUIs(TParamUIConcept *&concepts, int &length) override {
concepts = new TParamUIConcept[length = 1];
concepts[0].m_type = TParamUIConcept::DIAMOND;
concepts[0].m_label = "Size";
concepts[0].m_params.push_back(m_size);
}
};
template <typename PIXEL>
void doSquareGradient(const TRasterPT<PIXEL> &ras,
const TSpectrumT<PIXEL> &spectrum, TPointD &posTrasf,
TAffine aff, double size) {
PIXEL outpixel = spectrum.getPremultipliedValue(1.);
int j;
ras->lock();
for (j = 0; j < ras->getLy(); j++) {
TPointD posAux = posTrasf;
TPointD fp;
PIXEL *pix = ras->pixels(j);
PIXEL *endPix = pix + ras->getLx();
while (pix < endPix) {
double s;
fp.x = fabs(posAux.x) / size;
fp.y = fabs(posAux.y) / size;
if ((fp.x + fp.y) < 1) {
s = fp.x + fp.y;
*pix++ = spectrum.getPremultipliedValue(s);
} else
*pix++ = outpixel;
posAux.x += aff.a11;
posAux.y += aff.a21;
}
posTrasf.x += aff.a12;
posTrasf.y += aff.a22;
}
ras->unlock();
}
//------------------------------------------------------------------------------
void SquareGradientFx::doCompute(TTile &tile, double frame,
const TRenderSettings &ri) {
double size = m_size->getValue(frame) / ri.m_shrinkX;
;
TAffine aff = ri.m_affine.inv();
TPointD posTrasf = aff * tile.m_pos;
if (TRaster32P raster32 = tile.getRaster())
doSquareGradient<TPixel32>(raster32, m_colors->getValue(frame), posTrasf,
aff, size);
else if (TRaster64P raster64 = tile.getRaster())
doSquareGradient<TPixel64>(raster64, m_colors->getValue64(frame), posTrasf,
aff, size);
else
throw TException("SquareGradientFx: unsupported Pixel Type");
}
FX_PLUGIN_IDENTIFIER(SquareGradientFx, "squareGradientFx");