#include "stdfx.h"
#include "tfxparam.h"
//#include "trop.h"
#include "tpixelutils.h"
#include "trasterfx.h"
#include "tparamset.h"
//==================================================================
class TargetSpotFx : public TStandardZeraryFx {
FX_PLUGIN_DECLARATION(TargetSpotFx)
TDoubleParamP m_z;
TDoubleParamP m_angle;
TDoubleParamP m_decay;
TDoubleParamP m_sizex;
TDoubleParamP m_sizey;
TPixelParamP m_color;
public:
TargetSpotFx()
: m_z(100) // args, "Z")
, m_angle(10) // args, "Angle")
, m_decay(.01) // args, "Angle")
, m_sizex(1) // args, "SizeX")
, m_sizey(1) // args, "sizeY")
, m_color(TPixel::White) // args, "Color")
{
bindParam(this, "z", m_z);
bindParam(this, "angle", m_angle);
bindParam(this, "decay", m_decay);
bindParam(this, "sizeX", m_sizex);
bindParam(this, "sizeY", m_sizey);
bindParam(this, "color", m_color);
m_decay->setValueRange(0.0, 1.0);
m_sizex->setValueRange(0, (std::numeric_limits<double>::max)());
m_sizey->setValueRange(0, (std::numeric_limits<double>::max)());
m_z->setValueRange(0, (std::numeric_limits<double>::max)());
m_angle->setMeasureName("angle");
}
~TargetSpotFx(){};
bool doGetBBox(double, TRectD &bBox, const TRenderSettings &info) override {
bBox = TConsts::infiniteRectD;
return true; // si potrebbe/dovrebbe fare meglio
};
void doCompute(TTile &tile, double frame, const TRenderSettings &ri) override;
bool canHandle(const TRenderSettings &info, double frame) override { return false; }
};
template <typename PIXEL>
void doTargetSpot(const TRasterPT<PIXEL> &ras, TPixel32 m_color0, double sizex,
double sizey, double angle, double decay, double z,
TPointD tilepos) {
PIXEL color1 = PIXEL::Black;
PIXEL color0 = PixelConverter<PIXEL>::from(m_color0);
double normx = 1 / sizex;
double normy = 1 / sizey;
double reference = 5 * z;
angle = angle * M_PI_180;
double ttan;
ttan = tan(angle);
int j;
ras->lock();
for (j = 0; j < ras->getLy(); j++) {
TPointD pos = tilepos;
pos.y += j;
PIXEL *pix = ras->pixels(j);
PIXEL *endPix = pix + ras->getLx();
while (pix < endPix) {
double dist, norm;
pos.x += 1.0;
const double ztmp(-ttan * pos.x + z);
const double zz(ztmp * ztmp);
const double distxy(pos.x * pos.x * normx + pos.y * pos.y * normy);
dist = distxy - zz;
norm = sqrt(distxy + zz);
if (norm < 0) norm *= -1;
if (dist < 0 && (-ttan * pos.x + z) > 0) {
*pix++ =
blend(color0, color1,
norm * decay > 1 ? 1 : (norm * decay < 0 ? 0 : norm * decay));
} else if (dist < reference && ztmp > 0) {
PIXEL tmp =
blend(color0, color1,
norm * decay > 1 ? 1 : (norm * decay < 0 ? 0 : norm * decay));
*pix++ = blend(tmp, color1, dist / (reference));
} else
*pix++ = color1;
}
}
ras->unlock();
}
//------------------------------------------------------------------
void TargetSpotFx::doCompute(TTile &tile, double frame,
const TRenderSettings &ri) {
double z = m_z->getValue(frame) * ri.m_affine.a11;
double angle = m_angle->getValue(frame);
double sizex = m_sizex->getValue(frame) / (ri.m_shrinkX * ri.m_shrinkX);
double sizey = m_sizey->getValue(frame) / (ri.m_shrinkX * ri.m_shrinkX);
const TPixel32 m_color0 = m_color->getPremultipliedValue(frame);
double decay = m_decay->getValue(frame) / 100;
TPointD pos = tile.m_pos;
TRaster32P raster32 = tile.getRaster();
if (raster32)
doTargetSpot<TPixel32>(raster32, m_color0, sizex, sizey, angle, decay, z,
pos);
else {
TRaster64P raster64 = tile.getRaster();
if (raster64)
doTargetSpot<TPixel64>(raster64, m_color0, sizex, sizey, angle, decay, z,
pos);
else
throw TException("Brightness&Contrast: unsupported Pixel Type");
}
}
FX_PLUGIN_IDENTIFIER(TargetSpotFx, "targetSpotFx")