93 lines
1.9 KiB
C++
93 lines
1.9 KiB
C++
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#include "texception.h"
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#include "tfxparam.h"
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#include "stdfx.h"
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#include "trandom.h"
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//===================================================================
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class DissolveFx : public TStandardRasterFx
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{
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FX_PLUGIN_DECLARATION(DissolveFx)
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TRasterFxPort m_input;
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TDoubleParamP m_intensity;
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public:
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DissolveFx()
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: m_intensity(30.0)
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{
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bindParam(this, "intensity", m_intensity);
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addInputPort("Source", m_input);
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m_intensity->setValueRange(0.0, 100.0);
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}
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~DissolveFx(){};
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bool doGetBBox(double frame, TRectD &bBox, const TRenderSettings &info)
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{
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if (m_input.isConnected()) {
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bool ret = m_input->doGetBBox(frame, bBox, info);
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return ret;
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} else {
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bBox = TRectD();
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return false;
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}
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}
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void doCompute(TTile &tile, double frame, const TRenderSettings &ri);
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bool canHandle(const TRenderSettings &info, double frame) { return true; }
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};
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template <typename PIXEL>
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void doDissolve(const TRasterPT<PIXEL> &ras, const double intensity, TRandom &rnd)
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{
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int j;
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ras->lock();
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for (j = 0; j < ras->getLy(); j++) {
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PIXEL *pix = ras->pixels(j);
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PIXEL *endPix = pix + ras->getLx();
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while (pix < endPix) {
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if (pix->m) {
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double data;
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data = rnd.getFloat();
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if (data < intensity) {
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pix->r = pix->g = pix->b = pix->m = 0;
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}
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}
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*pix++;
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}
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}
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ras->unlock();
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}
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//-------------------------------------------------------------------
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void DissolveFx::doCompute(TTile &tile, double frame, const TRenderSettings &ri)
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{
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if (!m_input.isConnected())
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return;
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m_input->compute(tile, frame, ri);
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TRandom rnd;
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double intensity = m_intensity->getValue(frame) / 100.0;
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;
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TRaster32P raster32 = tile.getRaster();
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if (raster32)
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doDissolve<TPixel32>(raster32, intensity, rnd);
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else {
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TRaster64P raster64 = tile.getRaster();
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if (raster64)
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doDissolve<TPixel64>(raster64, intensity, rnd);
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else
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throw TException("Brightness&Contrast: unsupported Pixel Type");
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}
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}
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FX_PLUGIN_IDENTIFIER(DissolveFx, "dissolveFx");
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