Function generateMTSDF_legacy

MyGUIEngine/src/msdfgen/core/msdfgen.cpp:276–333

}

void generateMTSDF_legacy(BitmapSection<float, 4> output, const Shape &shape, Range range, const Vector2 &scale, const Vector2 &translate, ErrorCorrectionConfig errorCorrectionConfig) {
    DistanceMapping distanceMapping(range);
    output.reorient(shape.getYAxisOrientation());
#ifdef MSDFGEN_USE_OPENMP
    #pragma omp parallel for
#endif
    for (int y = 0; y < output.height; ++y) {
        for (int x = 0; x < output.width; ++x) {
            Point2 p = Vector2(x+.5, y+.5)/scale-translate;

            SignedDistance minDistance;
            struct {
                SignedDistance minDistance;
                const EdgeHolder *nearEdge;
                double nearParam;
            } r, g, b;
            r.nearEdge = g.nearEdge = b.nearEdge = NULL;
            r.nearParam = g.nearParam = b.nearParam = 0;

            for (std::vector<Contour>::const_iterator contour = shape.contours.begin(); contour != shape.contours.end(); ++contour)
                for (std::vector<EdgeHolder>::const_iterator edge = contour->edges.begin(); edge != contour->edges.end(); ++edge) {
                    double param;
                    SignedDistance distance = (*edge)->signedDistance(p, param);
                    if (distance < minDistance)
                        minDistance = distance;
                    if ((*edge)->color&RED && distance < r.minDistance) {
                        r.minDistance = distance;
                        r.nearEdge = &*edge;
                        r.nearParam = param;
                    }
                    if ((*edge)->color&GREEN && distance < g.minDistance) {
                        g.minDistance = distance;
                        g.nearEdge = &*edge;
                        g.nearParam = param;
                    }
                    if ((*edge)->color&BLUE && distance < b.minDistance) {
                        b.minDistance = distance;
                        b.nearEdge = &*edge;
                        b.nearParam = param;
                    }
                }

            if (r.nearEdge)
                (*r.nearEdge)->distanceToPerpendicularDistance(r.minDistance, p, r.nearParam);
            if (g.nearEdge)
                (*g.nearEdge)->distanceToPerpendicularDistance(g.minDistance, p, g.nearParam);
            if (b.nearEdge)
                (*b.nearEdge)->distanceToPerpendicularDistance(b.minDistance, p, b.nearParam);
            output(x, y)[0] = float(distanceMapping(r.minDistance.distance));
            output(x, y)[1] = float(distanceMapping(g.minDistance.distance));
            output(x, y)[2] = float(distanceMapping(b.minDistance.distance));
            output(x, y)[3] = float(distanceMapping(minDistance.distance));
        }
    }

    errorCorrectionConfig.distanceCheckMode = ErrorCorrectionConfig::DO_NOT_CHECK_DISTANCE;
    msdfErrorCorrection(output, shape, Projection(scale, translate), range, MSDFGeneratorConfig(false, errorCorrectionConfig));
}