Examples with ImgFileReader uk.me.parabola.imgfmt.app.ImgFileReader used on opensource projects

Example 11 with ImgFileReader

use of uk.me.parabola.imgfmt.app.ImgFileReader in project mkgmap by openstreetmap.

the class LBLFileReader method readLables.

/**
 * Read and cache all the labels.
 *
 * Note: It is pretty pointless saving the whole label rather than just
 * the text, except that other objects take a Label.  Perhaps this can
 * be changed.
 */
private void readLables(int mult) {
    ImgFileReader reader = getReader();
    labels.put(0, NULL_LABEL);
    int start = header.getLabelStart();
    int size = header.getLabelSize();
    reader.position(start + mult);
    int labelOffset = mult;
    for (int off = mult; off <= size; off++) {
        byte b = reader.get();
        if (textDecoder.addByte(b)) {
            labelOffset = saveLabel(labelOffset, off, mult);
            // ensure that the labels are on suitable boundaries.  We must skip over any such padding.
            while ((labelOffset & (mult - 1)) != 0) {
                textDecoder.reset();
                if (labelOffset <= off) {
                    // In the 6bit decoder, we may have already read the (first) padding byte and so
                    // we increment the label offset without reading anything more.
                    labelOffset++;
                } else {
                    reader.get();
                    // noinspection AssignmentToForLoopParameter
                    off++;
                    labelOffset++;
                }
            }
        }
    }
}

Example 12 with ImgFileReader

use of uk.me.parabola.imgfmt.app.ImgFileReader in project mkgmap by openstreetmap.

the class LBLFileReader method readCities.

/**
 * Read in the city section and cache the results here.  They are needed
 * to read in the POI properties section.
 */
private void readCities() {
    PlacesHeader placeHeader = header.getPlaceHeader();
    int start = placeHeader.getCitiesStart();
    int end = placeHeader.getCitiesEnd();
    ImgFileReader reader = getReader();
    // Since cities are indexed starting from 1, we add a null one at index 0
    reader.position(start);
    int index = 1;
    while (reader.position() < end) {
        // First is either a label offset or a point/subdiv combo, we
        // don't know until we have read further
        int label = reader.getu3();
        int info = reader.getChar();
        City city;
        if ((info & 0x4000) == 0) {
            Region region = regions.get(info & 0x3fff);
            city = new City(region);
        } else {
            Country country = countries.get(info & 0x3fff);
            city = new City(country);
        }
        city.setIndex(index);
        if ((info & 0x8000) == 0) {
            city.setSubdivision(Subdivision.createEmptySubdivision(1));
            Label label1 = labels.get(label & 0x3fffff);
            city.setLabel(label1);
        } else {
            // Has subdiv/point index
            int pointIndex = label & 0xff;
            int subdiv = (label >> 8) & 0xffff;
            city.setPointIndex((byte) pointIndex);
            city.setSubdivision(Subdivision.createEmptySubdivision(subdiv));
        }
        cities.add(city);
        index++;
    }
}

Example 13 with ImgFileReader

use of uk.me.parabola.imgfmt.app.ImgFileReader in project mkgmap by openstreetmap.

the class LBLFileReader method readCountries.

/**
 * Read a cache the countries. These are used when reading cities.
 */
private void readCountries() {
    ImgFileReader reader = getReader();
    PlacesHeader placeHeader = header.getPlaceHeader();
    // 1 based indexes
    countries.add(null);
    int start = placeHeader.getCountriesStart();
    int end = placeHeader.getCountriesEnd();
    reader.position(start);
    int index = 1;
    while (reader.position() < end) {
        int offset = reader.getu3();
        Label label = fetchLabel(offset);
        if (label != null) {
            Country country = new Country(index);
            country.setLabel(label);
            countries.add(country);
        }
        index++;
    }
}

Example 14 with ImgFileReader

use of uk.me.parabola.imgfmt.app.ImgFileReader in project mkgmap by openstreetmap.

the class LBLFileReader method readPoiInfo.

/**
 * Read all the POI information.
 * This will create a POIRecord, but we just get the name at the minute.
 *
 * TODO: not finished
 */
private void readPoiInfo() {
    ImgFileReader reader = getReader();
    PlacesHeader placeHeader = header.getPlaceHeader();
    int poiGlobalFlags = placeHeader.getPOIGlobalFlags();
    int start = placeHeader.getPoiPropertiesStart();
    int end = placeHeader.getPoiPropertiesEnd();
    reader.position(start);
    PoiMasks localMask = makeLocalMask(placeHeader);
    while (reader.position() < end) {
        int poiOffset = position() - start;
        int val = reader.getu3();
        int labelOffset = val & 0x3fffff;
        boolean override = (val & 0x800000) != 0;
        POIRecord poi = new POIRecord();
        poi.setLabel(fetchLabel(labelOffset));
        // We have what we want, but now have to find the start of the
        // next record as they are not fixed length.
        int flags;
        boolean hasStreet;
        boolean hasStreetNum;
        boolean hasCity;
        boolean hasZip;
        boolean hasPhone;
        boolean hasHighwayExit;
        boolean hasTides;
        if (override) {
            flags = reader.get();
            hasStreetNum = (flags & localMask.streetNumMask) != 0;
            hasStreet = (flags & localMask.streetMask) != 0;
            hasCity = (flags & localMask.cityMask) != 0;
            hasZip = (flags & localMask.zipMask) != 0;
            hasPhone = (flags & localMask.phoneMask) != 0;
            hasHighwayExit = (flags & localMask.highwayExitMask) != 0;
            hasTides = (flags & localMask.tidesMask) != 0;
        } else {
            flags = poiGlobalFlags;
            hasStreetNum = (flags & POIRecord.HAS_STREET_NUM) != 0;
            hasStreet = (flags & POIRecord.HAS_STREET) != 0;
            hasCity = (flags & POIRecord.HAS_CITY) != 0;
            hasZip = (flags & POIRecord.HAS_ZIP) != 0;
            hasPhone = (flags & POIRecord.HAS_PHONE) != 0;
            hasHighwayExit = (flags & POIRecord.HAS_EXIT) != 0;
            hasTides = (flags & POIRecord.HAS_TIDE_PREDICTION) != 0;
        }
        if (hasStreetNum) {
            byte b = reader.get();
            if ((b & 0x80) == 0) {
                int mpoffset = (b << 16) & 0xff0000;
                mpoffset |= reader.getChar() & 0xffff;
                poi.setComplexStreetNumber(fetchLabel(mpoffset));
            } else {
                poi.setSimpleStreetNumber(reader.getBase11str(b, '-'));
            }
        }
        if (hasStreet) {
            // label for street
            int streetNameOffset = reader.getu3();
            Label label = fetchLabel(streetNameOffset);
            poi.setStreetName(label);
        }
        if (hasCity) {
            int cityIndex = reader.getUint(Utils.numberToPointerSize(placeHeader.getNumCities()));
            poi.setCity(cities.get(cityIndex - 1));
        }
        if (hasZip) {
            int zipIndex = reader.getUint(Utils.numberToPointerSize(placeHeader.getNumZips()));
            poi.setZip(zips.get(zipIndex - 1));
        }
        if (hasPhone) {
            byte b = reader.get();
            if ((b & 0x80) == 0) {
                // Yes this is a bit strange it is a byte followed by a char
                int mpoffset = (b << 16) & 0xff0000;
                mpoffset |= reader.getChar() & 0xffff;
                poi.setComplexPhoneNumber(fetchLabel(mpoffset));
            } else {
                poi.setSimplePhoneNumber(reader.getBase11str(b, '-'));
            }
        }
        if (hasHighwayExit) {
            int lblinfo = reader.getu3();
            int highwayLabelOffset = lblinfo & 0x3FFFF;
            boolean indexed = (lblinfo & 0x800000) != 0;
            boolean overnightParking = (lblinfo & 0x400000) != 0;
            int highwayIndex = reader.getUint(Utils.numberToPointerSize(placeHeader.getNumHighways()));
            if (indexed) {
                int eidx = reader.getUint(Utils.numberToPointerSize(placeHeader.getNumExits()));
            }
        }
        if (hasTides) {
            System.out.println("Map has tide prediction, please implement!");
        }
        pois.put(poiOffset, poi);
    }
}

Example 15 with ImgFileReader

use of uk.me.parabola.imgfmt.app.ImgFileReader in project mkgmap by openstreetmap.

the class LBLFileReader method readRegions.

/**
 * Read an cache the regions.  These are used when reading cities.
 */
private void readRegions() {
    ImgFileReader reader = getReader();
    PlacesHeader placeHeader = header.getPlaceHeader();
    int start = placeHeader.getRegionsStart();
    int end = placeHeader.getRegionsEnd();
    regions.add(null);
    reader.position(start);
    int index = 1;
    while (reader.position() < end) {
        int country = reader.getChar();
        int offset = reader.getu3();
        Label label = fetchLabel(offset);
        if (label != null) {
            Region region = new Region(countries.get(country));
            region.setIndex(index);
            region.setLabel(label);
            regions.add(region);
        }
        index++;
    }
}