91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
|
|
|
|
#include "stdfx.h"
|
|
#include "tfxparam.h"
|
|
|
|
namespace {
|
|
template <typename T, typename PIXEL>
|
|
void prepare_lut(int levels, std::vector<T> &lut) {
|
|
int i, j;
|
|
int valuestep = PIXEL::maxChannelValue / (levels - 1);
|
|
int step = PIXEL::maxChannelValue / levels;
|
|
for (j = 0; j < levels; j++)
|
|
for (i = 0; i <= step; i++) lut[i + j * step] = j * valuestep;
|
|
}
|
|
}
|
|
|
|
//===================================================================
|
|
|
|
class PosterizeFx : public TStandardRasterFx {
|
|
FX_PLUGIN_DECLARATION(PosterizeFx)
|
|
|
|
TRasterFxPort m_input;
|
|
TDoubleParamP m_levels;
|
|
|
|
public:
|
|
PosterizeFx() : m_levels(7.0) {
|
|
bindParam(this, "levels", m_levels);
|
|
addInputPort("Source", m_input);
|
|
m_levels->setValueRange(2.0, 10.0);
|
|
}
|
|
|
|
~PosterizeFx(){};
|
|
|
|
bool doGetBBox(double frame, TRectD &bBox, const TRenderSettings &info) {
|
|
if (m_input.isConnected()) {
|
|
bool ret = m_input->doGetBBox(frame, bBox, info);
|
|
return ret;
|
|
} else {
|
|
bBox = TRectD();
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void doCompute(TTile &tile, double frame, const TRenderSettings &ri);
|
|
|
|
bool canHandle(const TRenderSettings &info, double frame) { return true; }
|
|
};
|
|
|
|
//-------------------------------------------------------------------
|
|
|
|
template <typename PIXEL, typename CHANNEL_TYPE>
|
|
void doPosterize(TRasterPT<PIXEL> ras, int levels) {
|
|
std::vector<CHANNEL_TYPE> solarize_lut(PIXEL::maxChannelValue + 1);
|
|
|
|
prepare_lut<CHANNEL_TYPE, PIXEL>(levels, solarize_lut);
|
|
int j;
|
|
ras->lock();
|
|
for (j = 0; j < ras->getLy(); j++) {
|
|
PIXEL *pix = ras->pixels(j);
|
|
PIXEL *endPix = pix + ras->getLx();
|
|
while (pix < endPix) {
|
|
pix->r = (CHANNEL_TYPE)(solarize_lut[(int)(pix->r)]);
|
|
pix->g = (CHANNEL_TYPE)(solarize_lut[(int)(pix->g)]);
|
|
pix->b = (CHANNEL_TYPE)(solarize_lut[(int)(pix->b)]);
|
|
*pix++;
|
|
}
|
|
}
|
|
ras->unlock();
|
|
}
|
|
//-------------------------------------------------------------------
|
|
|
|
void PosterizeFx::doCompute(TTile &tile, double frame,
|
|
const TRenderSettings &ri) {
|
|
if (!m_input.isConnected()) return;
|
|
|
|
m_input->compute(tile, frame, ri);
|
|
|
|
int levels = (int)m_levels->getValue(frame);
|
|
TRaster32P raster32 = tile.getRaster();
|
|
if (raster32)
|
|
doPosterize<TPixel32, UCHAR>(raster32, levels);
|
|
else {
|
|
TRaster64P raster64 = tile.getRaster();
|
|
if (raster64)
|
|
doPosterize<TPixel64, USHORT>(raster64, levels);
|
|
else
|
|
throw TException("Brightness&Contrast: unsupported Pixel Type");
|
|
}
|
|
}
|
|
|
|
FX_PLUGIN_IDENTIFIER(PosterizeFx, "posterizeFx");
|