/*******************************************************************************
* Copyright (c) MOBAC developers
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package mobac.program.atlascreators;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.AffineTransform;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import javax.imageio.ImageIO;
import mobac.exceptions.AtlasTestException;
import mobac.exceptions.MapCreationException;
import mobac.mapsources.mapspace.MercatorPower2MapSpace;
import mobac.program.interfaces.LayerInterface;
import mobac.program.interfaces.MapInterface;
import mobac.program.interfaces.MapSource;
import mobac.program.interfaces.MapSpace;
import mobac.program.interfaces.MapSpace.ProjectionCategory;
import mobac.utilities.Utilities;
public abstract class AbstractPlainImage extends AtlasCreator {
@Override
public boolean testMapSource(MapSource mapSource) {
MapSpace mapSpace = mapSource.getMapSpace();
return (mapSpace instanceof MercatorPower2MapSpace && ProjectionCategory.SPHERE.equals(mapSpace
.getProjectionCategory()));
}
@Override
protected void testAtlas() throws AtlasTestException {
Runtime r = Runtime.getRuntime();
long heapMaxSize = r.maxMemory();
int maxMapSize = (int) (Math.sqrt(heapMaxSize / 3d) * 0.8); // reduce maximum by 20%
maxMapSize = (maxMapSize / 100) * 100; // round by 100;
for (LayerInterface layer : atlas) {
for (MapInterface map : layer) {
int w = map.getMaxTileCoordinate().x - map.getMinTileCoordinate().x;
int h = map.getMaxTileCoordinate().y - map.getMinTileCoordinate().y;
if (w > maxMapSize || h > maxMapSize)
throw new AtlasTestException("Map size too large for memory (is: " + Math.max(w, h) + " max: "
+ maxMapSize + ")", map);
}
}
}
@Override
public void createMap() throws MapCreationException, InterruptedException {
try {
createImage();
} catch (InterruptedException e) {
throw e;
} catch (MapCreationException e) {
throw e;
} catch (Exception e) {
throw new MapCreationException(map, e);
}
}
/**
* @return maximum image height and width. In case an image is larger it will be scaled to fit.
*/
protected int getMaxImageSize() {
return Integer.MAX_VALUE;
}
protected int getBufferedImageType() {
return BufferedImage.TYPE_4BYTE_ABGR;
}
protected void createImage() throws InterruptedException, MapCreationException {
atlasProgress.initMapCreation((xMax - xMin + 1) * (yMax - yMin + 1));
ImageIO.setUseCache(false);
int mapWidth = (xMax - xMin + 1) * tileSize;
int mapHeight = (yMax - yMin + 1) * tileSize;
int maxImageSize = getMaxImageSize();
int imageWidth = Math.min(maxImageSize, mapWidth);
int imageHeight = Math.min(maxImageSize, mapHeight);
int len = Math.max(mapWidth, mapHeight);
double scaleFactor = 1.0;
boolean scaleImage = (len > maxImageSize);
if (scaleImage) {
scaleFactor = (double) getMaxImageSize() / (double) len;
if (mapWidth != mapHeight) {
// Map is not rectangle -> adapt height or width
if (mapWidth > mapHeight)
imageHeight = (int) (scaleFactor * mapHeight);
else
imageWidth = (int) (scaleFactor * mapWidth);
}
}
if (imageHeight < 0 || imageWidth < 0)
throw new MapCreationException("Invalid map size: (width/height: " + imageWidth + "/" + imageHeight + ")",
map);
long imageSize = 3l * ((long) imageWidth) * ((long) imageHeight);
if (imageSize > Integer.MAX_VALUE)
throw new MapCreationException("Map image too large: (width/height: " + imageWidth + "/" + imageHeight
+ ") - reduce the map size and try again", map);
BufferedImage tileImage = Utilities.safeCreateBufferedImage(imageWidth, imageHeight,
BufferedImage.TYPE_3BYTE_BGR);
Graphics2D graphics = tileImage.createGraphics();
try {
if (scaleImage) {
graphics.setTransform(AffineTransform.getScaleInstance(scaleFactor, scaleFactor));
graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
}
int lineY = 0;
for (int y = yMin; y <= yMax; y++) {
int lineX = 0;
for (int x = xMin; x <= xMax; x++) {
checkUserAbort();
atlasProgress.incMapCreationProgress();
try {
byte[] sourceTileData = mapDlTileProvider.getTileData(x, y);
if (sourceTileData != null) {
BufferedImage tile = ImageIO.read(new ByteArrayInputStream(sourceTileData));
graphics.drawImage(tile, lineX, lineY, tileSize, tileSize, Color.WHITE, null);
}
} catch (IOException e) {
log.error("", e);
}
lineX += tileSize;
}
lineY += tileSize;
}
} finally {
graphics.dispose();
}
writeTileImage(tileImage);
}
protected abstract void writeTileImage(BufferedImage tileImage) throws MapCreationException;
}