Function buildTimes

SlitScan/SlitScan.cpp:438–472

// build the set of times needed to render renderWindow
template<class PIX, int maxValue>
void
buildTimes(const ImageEffect& effect,
           const Image* retimeMap,
           double time,
           const OfxRectI& renderWindow,
           double retimeGain,
           double retimeOffset,
           bool retimeAbsolute,
           FilterEnum filter,
           std::set<double> *sourceImagesTimes)
{
    for (int y = renderWindow.y1; y < renderWindow.y2; ++y) {
        if ( effect.abort() ) {
            return;
        }
        for (int x = renderWindow.x1; x < renderWindow.x2; ++x) {
            PIX* mapPix = retimeGain != 0. ? (PIX*)retimeMap->getPixelAddress(x, y) : NULL;
            double mapVal = mapPix ? (double)(*mapPix) / maxValue  : 0.;
            double srcTime = retimeGain * mapVal + retimeOffset;
            if (!retimeAbsolute) {
                srcTime += time;
            }
            if (srcTime == (int)srcTime) {
                sourceImagesTimes->insert(srcTime);
            } else {
                if (filter == eFilterNearest) {
                    sourceImagesTimes->insert( std::floor(srcTime + 0.5) );
                } else {
                    sourceImagesTimes->insert( std::floor(srcTime) );
                    sourceImagesTimes->insert( std::ceil(srcTime) );
                }
            }
        }
    }
}

void
buildTimesSlit(double time,