- adding MapDatabase backend for our TileStache provider

- fixing some renering bugs on nexus phone
and some refactoring and cleanup

AndroidManifest.xml

@@ -12,14 +12,15 @@
 
     <uses-sdk
         android:minSdkVersion="10"
-        android:targetSdkVersion="15" />
+        android:targetSdkVersion="16" />
 
     <application
         android:icon="@drawable/globe2"
         android:label="@string/application_name"
         android:theme="@style/Theme.TileMap" >
-       
+        <activity
-        <activity android:name="org.mapsforge.app.TileMap" >
+            android:name="org.mapsforge.app.TileMap"
+            android:configChanges="orientation|screenSize" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -28,6 +29,6 @@
         </activity>
         <activity android:name=".preferences.EditPreferences" />
         <activity android:name=".filepicker.FilePicker" />
+    </application>
 
-     </application>
+</manifest>
-     </manifest>

res/layout-port/activity_advanced_map_viewer.xml

@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:id="@+id/mainView"
-    android:layout_width="fill_parent"
-    android:layout_height="fill_parent">
-    
-    <org.mapsforge.android.MapView
-        android:id="@+id/mapView"
-        android:layout_width="fill_parent"
-        android:layout_height="fill_parent" />
-
-    <ToggleButton
-        android:id="@+id/snapToLocationView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_alignParentRight="true"
-        android:layout_alignParentTop="true"
-        android:layout_marginRight="10dip"
-        android:layout_marginTop="10dip"
-        android:background="@drawable/snap_to_position"
-        android:textOff=""
-        android:textOn=""
-        android:visibility="gone" />
-
-</RelativeLayout>

res/menu/options_menu_pre_honeycomb.xml

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android" >
+
+    <item
+        android:id="@+id/menu_position"
+        android:icon="@drawable/ic_menu_mylocation"
+        android:showAsAction="always"
+        android:title="@string/menu_position">
+        <menu>
+            <item
+                android:id="@+id/menu_position_my_location_enable"
+                android:title="@string/menu_position_my_location_enable"/>
+            <item
+                android:id="@+id/menu_position_my_location_disable"
+                android:title="@string/menu_position_my_location_disable"/>
+            <item
+                android:id="@+id/menu_position_last_known"
+                android:title="@string/menu_position_last_known"/>
+            <item
+                android:id="@+id/menu_position_enter_coordinates"
+                android:title="@string/menu_position_enter_coordinates"/>
+            <item
+                android:id="@+id/menu_position_map_center"
+                android:title="@string/menu_position_map_file_center"/>
+        </menu>
+    </item>
+    <item
+        android:id="@+id/menu_options"
+        android:icon="@drawable/ic_menu_options"
+        android:showAsAction="always"
+        android:title="@string/menu_options">
+
+    <menu>
+          <!--  android:icon="@drawable/ic_menu_preferences" -->
+        <item
+            android:id="@+id/menu_preferences"
+       
+            android:showAsAction="never"
+            android:title="@string/menu_preferences"/>
+         <!-- android:icon="@drawable/ic_menu_mapmode" -->
+        
+        <!--   android:icon="@drawable/ic_menu_archive" -->
+        <item
+            android:id="@+id/menu_mapfile"
+          
+            android:showAsAction="never"
+            android:title="@string/menu_mapfile"/>
+       <!--   <item
+                android:id="@+id/menu_info_map_file"
+                android:title="@string/menu_info_map_file"/> -->
+    </menu>
+
+    </item>
+    
+    <item
+            android:id="@+id/menu_render_theme"
+           
+            android:showAsAction="never"
+            android:title="@string/menu_render_theme">
+            <menu>
+                <item
+                    android:id="@+id/menu_render_theme_osmarender"
+                    android:title="@string/menu_render_theme_osmarender"/>
+                <item
+                    android:id="@+id/menu_render_theme_select_file"
+                    android:title="@string/menu_render_theme_select_file"/>
+            </menu>
+        </item>
+   
+
+</menu>

res/values-de/strings.xml

@@ -3,6 +3,7 @@
 	<string-array name="preferences_map_generator_values">
 	  <item>Mapfile</item>
 		<item>PostGIS</item>
+		<item>OpenScienceMap</item>
 	</string-array>
 
 	<string-array name="preferences_scale_bar_unit_values">

res/values-fi/strings.xml

@@ -3,6 +3,7 @@
 	<string-array name="preferences_map_generator_values">
 	  <item>Mapfile</item>
 		<item>PostGIS</item>
+			<item>OpenScienceMap</item>
 	</string-array>
 
 	<string-array name="preferences_text_scale_values">

res/values-it/strings.xml

@@ -3,6 +3,7 @@
 	<string-array name="preferences_map_generator_values">
 	  <item>Mapfile</item>
 		<item>PostGIS</item>
+			<item>OpenScienceMap</item>
 	</string-array>
 
 	<string-array name="preferences_text_scale_values">

res/values/arrays.xml

@@ -3,6 +3,7 @@
 	<string-array name="preferences_map_database_keys">
 		<item>MAP_READER</item>
 		<item>POSTGIS_READER</item>
+		<item>PBMAP_READER</item>
 	</string-array>
 	<string name="preferences_map_database_default">POSTGIS_READER</string>
 

res/values/strings.xml

@@ -3,6 +3,7 @@
 	<string-array name="preferences_map_generator_values">
 	  <item>Mapfile</item>
 		<item>PostGIS</item>
+		<item>OpenScienceMap</item>
 	</string-array>
 
 	<string-array name="preferences_scale_bar_unit_values">

src/org/mapsforge/android/IMapRenderer.java

@@ -14,6 +14,7 @@
  */
 package org.mapsforge.android;
 
+import org.mapsforge.android.mapgenerator.IMapGenerator;
 import org.mapsforge.android.mapgenerator.MapGeneratorJob;
 
 import android.opengl.GLSurfaceView;
@@ -21,7 +22,7 @@ import android.opengl.GLSurfaceView;
 /**
  *
  */
-public interface MapRenderer extends GLSurfaceView.Renderer {
+public interface IMapRenderer extends GLSurfaceView.Renderer {
 
 	/**
 	 * @param mapGeneratorJob
@@ -31,9 +32,8 @@ public interface MapRenderer extends GLSurfaceView.Renderer {
 	public boolean passTile(MapGeneratorJob mapGeneratorJob);
 
 	/**
-	 * @return true when tile passed to renderer is processed false otherwise.
+	 * @return true when tile passed to renderer is processed false otherwise. used to lock overwriting resources passed
-	 *         used to lock overwriting resources passed with the tile
+	 *         with the tile (e.g. lock until bitmap is loaded to texture)
-	 *         (e.g. lock until bitmap is loaded to texture)
 	 */
 	public boolean processedTile();
 
@@ -44,4 +44,6 @@ public interface MapRenderer extends GLSurfaceView.Renderer {
 	 *            ...
 	 */
 	public void redrawTiles(boolean clear);
+
+	public IMapGenerator createMapGenerator();
 }

src/org/mapsforge/android/MapView.java

@@ -16,25 +16,35 @@ package org.mapsforge.android;
 
 import java.io.File;
 import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+
+import javax.xml.parsers.ParserConfigurationException;
 
 import org.mapsforge.android.input.TouchHandler;
 import org.mapsforge.android.mapgenerator.IMapGenerator;
 import org.mapsforge.android.mapgenerator.JobParameters;
 import org.mapsforge.android.mapgenerator.JobQueue;
-import org.mapsforge.android.mapgenerator.JobTheme;
 import org.mapsforge.android.mapgenerator.MapDatabaseFactory;
-import org.mapsforge.android.mapgenerator.MapDatabaseInternal;
+import org.mapsforge.android.mapgenerator.MapDatabases;
-import org.mapsforge.android.mapgenerator.MapGeneratorFactory;
+import org.mapsforge.android.mapgenerator.MapGeneratorJob;
-import org.mapsforge.android.mapgenerator.MapGeneratorInternal;
+import org.mapsforge.android.mapgenerator.MapRendererFactory;
+import org.mapsforge.android.mapgenerator.MapRenderers;
 import org.mapsforge.android.mapgenerator.MapWorker;
+import org.mapsforge.android.mapgenerator.Theme;
 import org.mapsforge.android.rendertheme.ExternalRenderTheme;
 import org.mapsforge.android.rendertheme.InternalRenderTheme;
+import org.mapsforge.android.rendertheme.RenderTheme;
+import org.mapsforge.android.rendertheme.RenderThemeHandler;
 import org.mapsforge.android.utils.GlConfigChooser;
 import org.mapsforge.core.GeoPoint;
 import org.mapsforge.core.MapPosition;
 import org.mapsforge.database.FileOpenResult;
 import org.mapsforge.database.IMapDatabase;
+import org.mapsforge.database.MapFileInfo;
 import org.mapsforge.database.mapfile.MapDatabase;
+import org.xml.sax.SAXException;
 
 import android.content.Context;
 import android.opengl.GLSurfaceView;
@@ -49,8 +59,7 @@ import android.view.MotionEvent;
  * <p>
  * This implementation supports offline map rendering as well as downloading map images (tiles) over an Internet
  * connection. The operation mode of a MapView can be set in the constructor and changed at runtime with the
- * {@link #setMapGeneratorInternal(IMapGenerator)} method. Some MapView parameters depend on the selected operation
+ * {@link #setMapDatabase(MapDatabases)} method. Some MapView parameters depend on the selected operation mode.
- * mode.
  * <p>
  * In offline rendering mode a special database file is required which contains the map data. Map files can be stored in
  * any folder. The current map file is set by calling {@link #setMapFile(String)}. To retrieve the current
@@ -67,12 +76,12 @@ public class MapView extends GLSurfaceView {
 	public static final InternalRenderTheme DEFAULT_RENDER_THEME = InternalRenderTheme.OSMARENDER;
 
 	private static final float DEFAULT_TEXT_SCALE = 1;
+	private static final Byte DEFAULT_START_ZOOM_LEVEL = Byte.valueOf((byte) 16);
 
 	private final MapController mMapController;
 	// private final MapMover mMapMover;
 	// private final ZoomAnimator mZoomAnimator;
-
+	// private final MapScaleBar mMapScaleBar;
-	private final MapScaleBar mMapScaleBar;
 	private final MapViewPosition mMapViewPosition;
 
 	private final MapZoomControls mMapZoomControls;
@@ -80,10 +89,11 @@ public class MapView extends GLSurfaceView {
 	private final TouchHandler mTouchEventHandler;
 
 	private IMapDatabase mMapDatabase;
-	private IMapGenerator mMapGenerator;
+	private MapDatabases mMapDatabaseType;
-	private MapRenderer mMapRenderer;
+	private IMapRenderer mMapRenderer;
 	private JobQueue mJobQueue;
-	private MapWorker mMapWorker;
+	private MapWorker mMapWorkers[];
+	private int mNumMapWorkers = 6;
 	private JobParameters mJobParameters;
 	private DebugSettings mDebugSettings;
 	private String mMapFile;
@@ -95,9 +105,7 @@ public class MapView extends GLSurfaceView {
 	 *             if the context object is not an instance of {@link MapActivity} .
 	 */
 	public MapView(Context context) {
-		this(context, null,
+		this(context, null, MapRenderers.GL_RENDERER, MapDatabases.MAP_READER);
-				MapGeneratorFactory.createMapGenerator(MapGeneratorInternal.GL_RENDERER),
-				MapDatabaseFactory.createMapDatabase(MapDatabaseInternal.MAP_READER));
 	}
 
 	/**
@@ -110,25 +118,12 @@ public class MapView extends GLSurfaceView {
 	 */
 	public MapView(Context context, AttributeSet attributeSet) {
 		this(context, attributeSet,
-				MapGeneratorFactory.createMapGenerator(attributeSet),
+				MapRendererFactory.getMapGenerator(attributeSet),
-				MapDatabaseFactory.createMapDatabase(attributeSet));
+				MapDatabaseFactory.getMapDatabase(attributeSet));
-	}
-
-	/**
-	 * @param context
-	 *            the enclosing MapActivity instance.
-	 * @param mapGenerator
-	 *            the MapGenerator for this MapView.
-	 * @throws IllegalArgumentException
-	 *             if the context object is not an instance of {@link MapActivity} .
-	 */
-	public MapView(Context context, IMapGenerator mapGenerator) {
-		this(context, null, mapGenerator, MapDatabaseFactory
-				.createMapDatabase(MapDatabaseInternal.MAP_READER));
 	}
 
 	private MapView(Context context, AttributeSet attributeSet,
-			IMapGenerator mapGenerator, IMapDatabase mapDatabase) {
+			MapRenderers mapGeneratorType, MapDatabases mapDatabaseType) {
 
 		super(context, attributeSet);
 
@@ -147,46 +142,63 @@ public class MapView extends GLSurfaceView {
 		mJobParameters = new JobParameters(DEFAULT_RENDER_THEME, DEFAULT_TEXT_SCALE);
 		mMapController = new MapController(this);
 
-		// mMapDatabase = MapDatabaseFactory.createMapDatabase(MapDatabaseInternal.POSTGIS_READER);
+		mMapDatabaseType = mapDatabaseType;
-		// mMapDatabase = MapDatabaseFactory.createMapDatabase(MapDatabaseInternal.JSON_READER);
-		mMapDatabase = mapDatabase;
 
 		mMapViewPosition = new MapViewPosition(this);
-		mMapScaleBar = new MapScaleBar(this);
+		// mMapScaleBar = new MapScaleBar(this);
 		mMapZoomControls = new MapZoomControls(mapActivity, this);
 		mProjection = new MapViewProjection(this);
 		mTouchEventHandler = new TouchHandler(mapActivity, this);
 
 		mJobQueue = new JobQueue(this);
-		mMapWorker = new MapWorker(this);
+
-		mMapWorker.start();
 		// mMapMover = new MapMover(this);
 		// mMapMover.start();
 		// mZoomAnimator = new ZoomAnimator(this);
 		// mZoomAnimator.start();
 
-		setMapGeneratorInternal(mapGenerator);
+		mMapRenderer = MapRendererFactory.createMapRenderer(this, mapGeneratorType);
+		mMapWorkers = new MapWorker[mNumMapWorkers];
 
-		GeoPoint startPoint = mMapGenerator.getStartPoint();
+		for (int i = 0; i < mNumMapWorkers; i++) {
-		if (startPoint != null) {
+			IMapDatabase mapDatabase = MapDatabaseFactory
-			mMapViewPosition.setMapCenter(startPoint);
+					.createMapDatabase(mapDatabaseType);
+
+			IMapGenerator mapGenerator = mMapRenderer.createMapGenerator();
+			mapGenerator.setMapDatabase(mapDatabase);
+
+			if (i == 0) {
+				mMapDatabase = mapDatabase;
+				initMapStartPosition();
+
+				// mapGenerator.setRendertheme(DEFAULT_RENDER_THEME);
+			}
+			mMapWorkers[i] = new MapWorker(i, this, mapGenerator, mMapRenderer);
+			mMapWorkers[i].start();
 		}
 
-		Byte startZoomLevel = mMapGenerator.getStartZoomLevel();
+		setRenderTheme(InternalRenderTheme.OSMARENDER);
-		if (startZoomLevel != null) {
-			mMapViewPosition.setZoomLevel(startZoomLevel.byteValue());
-		}
 
 		mapActivity.registerMapView(this);
 
 		setEGLConfigChooser(new GlConfigChooser());
 		setEGLContextClientVersion(2);
 
-		mMapRenderer = mMapGenerator.getMapRenderer(this);
 		setRenderer(mMapRenderer);
-
 		setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);
-		mMapWorker.setMapRenderer(mMapRenderer);
+	}
+
+	private void initMapStartPosition() {
+		GeoPoint startPoint = getStartPoint();
+		if (startPoint != null) {
+			mMapViewPosition.setMapCenter(startPoint);
+		}
+
+		Byte startZoomLevel = getStartZoomLevel();
+		if (startZoomLevel != null) {
+			mMapViewPosition.setZoomLevel(startZoomLevel.byteValue());
+		}
+
 	}
 
 	/**
@@ -224,13 +236,6 @@ public class MapView extends GLSurfaceView {
 		return mMapFile;
 	}
 
-	/**
-	 * @return the currently used MapGenerator (may be null).
-	 */
-	public IMapGenerator getMapGenerator() {
-		return mMapGenerator;
-	}
-
 	// /**
 	// * @return the MapMover which is used by this MapView.
 	// */
@@ -245,19 +250,19 @@ public class MapView extends GLSurfaceView {
 		return mMapViewPosition;
 	}
 
-	/**
+	// /**
-	 * @return the scale bar which is used in this MapView.
+	// * @return the scale bar which is used in this MapView.
-	 */
+	// */
-	public MapScaleBar getMapScaleBar() {
+	// public MapScaleBar getMapScaleBar() {
-		return mMapScaleBar;
+	// return mMapScaleBar;
-	}
+	// }
 
-	/**
+	// /**
-	 * @return the zoom controls instance which is used in this MapView.
+	// * @return the zoom controls instance which is used in this MapView.
-	 */
+	// */
-	public MapZoomControls getMapZoomControls() {
+	// public MapZoomControls getMapZoomControls() {
-		return mMapZoomControls;
+	// return mMapZoomControls;
-	}
+	// }
 
 	/**
 	 * @return the currently used projection of the map. Do not keep this object for a longer time.
@@ -362,37 +367,41 @@ public class MapView extends GLSurfaceView {
 
 		// mZoomAnimator.pause();
 		// mMapMover.pause();
-		mMapWorker.pause();
 		// mZoomAnimator.awaitPausing();
 		// mMapMover.awaitPausing();
-		mMapWorker.awaitPausing();
 		// mZoomAnimator.proceed();
 		// mMapMover.stopMove();
 		// mMapMover.proceed();
-		mMapWorker.proceed();
 
-		mMapDatabase.closeFile();
+		boolean initialized = false;
 
-		if (mapFile != null)
+		mJobQueue.clear();
-			fileOpenResult = mMapDatabase.openFile(new File(mapFile));
-		else
-			fileOpenResult = mMapDatabase.openFile(null);
 
-		if (fileOpenResult != null && fileOpenResult.isSuccess()) {
+		mapWorkersPause();
-			mMapFile = mapFile;
 
-			GeoPoint startPoint = mMapGenerator.getStartPoint();
+		for (MapWorker mapWorker : mMapWorkers) {
-			if (startPoint != null) {
+
-				Log.d(TAG, "mapfile got startpoint");
+			IMapGenerator mapGenerator = mapWorker.getMapGenerator();
-				mMapViewPosition.setMapCenter(startPoint);
+			IMapDatabase mapDatabase = mapGenerator.getMapDatabase();
+
+			mapDatabase.closeFile();
+
+			if (mapFile != null)
+				fileOpenResult = mapDatabase.openFile(new File(mapFile));
+			else
+				fileOpenResult = mapDatabase.openFile(null);
+
+			if (fileOpenResult != null && fileOpenResult.isSuccess()) {
+				mMapFile = mapFile;
+
+				if (!initialized)
+					initialized = true;
 			}
+		}
 
-			Byte startZoomLevel = mMapGenerator.getStartZoomLevel();
+		mapWorkersProceed();
-			if (startZoomLevel != null) {
-				Log.d(TAG, "mapfile got start zoomlevel");
-				mMapViewPosition.setZoomLevel(startZoomLevel.byteValue());
-			}
 
+		if (initialized) {
 			clearAndRedrawMapView();
 			Log.d(TAG, "mapfile set");
 			return true;
@@ -404,76 +413,61 @@ public class MapView extends GLSurfaceView {
 		return false;
 	}
 
-	/**
+	private GeoPoint getStartPoint() {
-	 * Sets the MapGenerator for this MapView.
+		if (mMapDatabase != null && mMapDatabase.hasOpenFile()) {
-	 * 
+			MapFileInfo mapFileInfo = mMapDatabase.getMapFileInfo();
-	 * @param mapGenerator
+			if (mapFileInfo.startPosition != null) {
-	 *            the new MapGenerator.
+				return mapFileInfo.startPosition;
-	 */
+			} else if (mapFileInfo.mapCenter != null) {
-	public void setMapGenerator(IMapGenerator mapGenerator) {
+				return mapFileInfo.mapCenter;
-
+			}
-		if (mMapGenerator != mapGenerator) {
-			setMapGeneratorInternal(mapGenerator);
-
-			clearAndRedrawMapView();
 		}
+
+		return null;
 	}
 
-	private void setMapGeneratorInternal(IMapGenerator mapGenerator) {
+	private Byte getStartZoomLevel() {
-		if (mapGenerator == null) {
+		if (mMapDatabase != null && mMapDatabase.hasOpenFile()) {
-			throw new IllegalArgumentException("mapGenerator must not be null");
+			MapFileInfo mapFileInfo = mMapDatabase.getMapFileInfo();
+			if (mapFileInfo.startZoomLevel != null) {
+				return mapFileInfo.startZoomLevel;
+			}
 		}
 
-		mapGenerator.setMapDatabase(mMapDatabase);
+		return DEFAULT_START_ZOOM_LEVEL;
-
-		mMapGenerator = mapGenerator;
-		mMapWorker.setMapGenerator(mMapGenerator);
-
 	}
 
 	/**
 	 * Sets the MapDatabase for this MapView.
 	 * 
-	 * @param mapDatabase
+	 * @param mapDatabaseType
 	 *            the new MapDatabase.
 	 */
-	public void setMapDatabase(IMapDatabase mapDatabase) {
-		Log.d(TAG, "setMapDatabase " + mapDatabase.getClass());
-		if (mMapDatabase != mapDatabase) {
 
-			if (mMapDatabase != null)
+	public void setMapDatabase(MapDatabases mapDatabaseType) {
-				mMapDatabase.closeFile();
+		IMapGenerator mapGenerator;
 
-			setMapDatabaseInternal(mapDatabase);
+		Log.d(TAG, "setMapDatabase " + mapDatabaseType.name());
 
-			// clearAndRedrawMapView();
+		if (mMapDatabaseType == mapDatabaseType)
-		}
+			return;
-	}
 
-	private void setMapDatabaseInternal(IMapDatabase mapDatabase) {
+		mapWorkersPause();
-		if (mapDatabase == null) {
-			throw new IllegalArgumentException("MapDatabase must not be null");
-		}
 
-		if (!mMapWorker.isPausing()) {
+		for (MapWorker mapWorker : mMapWorkers) {
-			mMapWorker.pause();
+			mapGenerator = mapWorker.getMapGenerator();
-			mMapWorker.awaitPausing();
+
+			mapGenerator.setMapDatabase(MapDatabaseFactory
+					.createMapDatabase(mapDatabaseType));
 		}
 
 		mJobQueue.clear();
-		mMapDatabase = mapDatabase;
-		mMapGenerator.setMapDatabase(mMapDatabase);
-
-		Log.d(TAG, "setMapDatabaseInternal " + mapDatabase.getClass());
 
 		String mapFile = mMapFile;
 		mMapFile = null;
 		setMapFile(mapFile);
 
-		mMapWorker.proceed();
+		mapWorkersProceed();
-
-		// mMapWorker.setMapDatabase(mMapDatabase);
-
 	}
 
 	/**
@@ -489,8 +483,7 @@ public class MapView extends GLSurfaceView {
 			throw new IllegalArgumentException("render theme must not be null");
 		}
 
-		Log.d(TAG, "set rendertheme " + internalRenderTheme);
+		setRenderTheme((Theme) internalRenderTheme);
-		mJobParameters = new JobParameters(internalRenderTheme, mJobParameters.textScale);
 
 		clearAndRedrawMapView();
 	}
@@ -510,12 +503,40 @@ public class MapView extends GLSurfaceView {
 			throw new IllegalArgumentException("render theme path must not be null");
 		}
 
-		JobTheme jobTheme = new ExternalRenderTheme(renderThemePath);
+		setRenderTheme(new ExternalRenderTheme(renderThemePath));
-		mJobParameters = new JobParameters(jobTheme, mJobParameters.textScale);
 
 		clearAndRedrawMapView();
 	}
 
+	private boolean setRenderTheme(Theme theme) {
+
+		mapWorkersPause();
+
+		InputStream inputStream = null;
+		try {
+			inputStream = theme.getRenderThemeAsStream();
+			RenderTheme t = RenderThemeHandler.getRenderTheme(inputStream);
+			mMapWorkers[0].getMapGenerator().setRenderTheme(t);
+			return true;
+		} catch (ParserConfigurationException e) {
+			Log.e(TAG, e.getMessage());
+		} catch (SAXException e) {
+			Log.e(TAG, e.getMessage());
+		} catch (IOException e) {
+			Log.e(TAG, e.getMessage());
+		} finally {
+			mapWorkersProceed();
+			try {
+				if (inputStream != null) {
+					inputStream.close();
+				}
+			} catch (IOException e) {
+				Log.e(TAG, e.getMessage());
+			}
+		}
+		return false;
+	}
+
 	/**
 	 * Sets the text scale for the map rendering. Has no effect in downloading mode.
 	 * 
@@ -523,7 +544,7 @@ public class MapView extends GLSurfaceView {
 	 *            the new text scale for the map rendering.
 	 */
 	public void setTextScale(float textScale) {
-		mJobParameters = new JobParameters(mJobParameters.jobTheme, textScale);
+		mJobParameters = new JobParameters(mJobParameters.theme, textScale);
 		clearAndRedrawMapView();
 	}
 
@@ -583,28 +604,33 @@ public class MapView extends GLSurfaceView {
 	@Override
 	protected synchronized void onSizeChanged(int width, int height, int oldWidth,
 			int oldHeight) {
-		mMapWorker.pause();
+		for (MapWorker mapWorker : mMapWorkers) {
-		mMapWorker.awaitPausing();
+			mapWorker.pause();
-		super.onSizeChanged(width, height, oldWidth, oldHeight);
+			mapWorker.awaitPausing();
-		mMapWorker.proceed();
+			super.onSizeChanged(width, height, oldWidth, oldHeight);
-
+			mapWorker.proceed();
+		}
 		// redrawTiles();
 	}
 
 	void destroy() {
 		// mMapMover.interrupt();
-		mMapWorker.interrupt();
 		// mZoomAnimator.interrupt();
 
-		try {
+		for (MapWorker mapWorker : mMapWorkers) {
-			mMapWorker.join();
+			mapWorker.interrupt();
-		} catch (InterruptedException e) {
+
-			// restore the interrupted status
+			try {
-			Thread.currentThread().interrupt();
+				mapWorker.join();
+			} catch (InterruptedException e) {
+				// restore the interrupted status
+				Thread.currentThread().interrupt();
+			}
+			IMapDatabase mapDatabase = mapWorker.getMapGenerator().getMapDatabase();
+			mapDatabase.closeFile();
 		}
 
-		mMapScaleBar.destroy();
+		// mMapScaleBar.destroy();
-		mMapDatabase.closeFile();
 
 	}
 
@@ -612,8 +638,9 @@ public class MapView extends GLSurfaceView {
 	 * @return the maximum possible zoom level.
 	 */
 	byte getMaximumPossibleZoomLevel() {
-		return (byte) Math.min(mMapZoomControls.getZoomLevelMax(),
+		return (byte) 20;
-				mMapGenerator.getZoomLevelMax());
+		// FIXME Math.min(mMapZoomControls.getZoomLevelMax(),
+		// mMapGenerator.getZoomLevelMax());
 	}
 
 	/**
@@ -639,7 +666,9 @@ public class MapView extends GLSurfaceView {
 	@Override
 	public void onPause() {
 		super.onPause();
-		mMapWorker.pause();
+		for (MapWorker mapWorker : mMapWorkers)
+			mapWorker.pause();
+
 		// mMapMover.pause();
 		// mZoomAnimator.pause();
 	}
@@ -647,7 +676,9 @@ public class MapView extends GLSurfaceView {
 	@Override
 	public void onResume() {
 		super.onResume();
-		mMapWorker.proceed();
+		for (MapWorker mapWorker : mMapWorkers)
+			mapWorker.proceed();
+
 		// mMapMover.proceed();
 		// mZoomAnimator.proceed();
 	}
@@ -706,9 +737,33 @@ public class MapView extends GLSurfaceView {
 	}
 
 	/**
-	 * @return MapWorker
+	 * add jobs and remember MapWorkers that stuff needs to be done
+	 * 
+	 * @param jobs
+	 *            tile jobs
 	 */
-	public MapWorker getMapWorker() {
+	public void addJobs(ArrayList<MapGeneratorJob> jobs) {
-		return mMapWorker;
+		mJobQueue.setJobs(jobs);
+
+		for (MapWorker m : mMapWorkers) {
+			synchronized (m) {
+				m.notify();
+			}
+		}
 	}
+
+	private void mapWorkersPause() {
+		for (MapWorker mapWorker : mMapWorkers) {
+			if (!mapWorker.isPausing()) {
+				mapWorker.pause();
+				mapWorker.awaitPausing();
+			}
+		}
+	}
+
+	private void mapWorkersProceed() {
+		for (MapWorker mapWorker : mMapWorkers)
+			mapWorker.proceed();
+	}
+
 }

src/org/mapsforge/android/MapViewPosition.java

@@ -26,6 +26,7 @@ import android.util.FloatMath;
 public class MapViewPosition {
 	private static float MAX_SCALE = 2.0f;
 	private static float MIN_SCALE = 1.0f;
+	private static int MAX_ZOOMLEVEL = 16;
 
 	private double mLatitude;
 	private double mLongitude;
@@ -162,12 +163,14 @@ public class MapViewPosition {
 		float s = mScale * scale;
 
 		if (s >= MAX_SCALE) {
-
+			if (s > 8)
-			byte z = (byte) FloatMath.sqrt(s);
-			if (z != 0 && mZoomLevel == 20)
 				return;
-			mZoomLevel += z;
+
-			s *= 1.0f / (1 << z);
+			if (mZoomLevel <= MAX_ZOOMLEVEL) {
+				byte z = (byte) FloatMath.sqrt(s);
+				mZoomLevel += z;
+				s *= 1.0f / (1 << z);
+			}
 		} else if (s < MIN_SCALE) {
 			byte z = (byte) FloatMath.sqrt(1 / s);
 			if (z != 0 && mZoomLevel == 1)

src/org/mapsforge/android/glrenderer/LayerPool.java

@@ -18,31 +18,33 @@ package org.mapsforge.android.glrenderer;
 import java.util.LinkedList;
 
 class LayerPool {
-	static private LinkedList<PoolItem> pool;
+	static private LinkedList<PoolItem> pool = null;
 	static private int count;
 
 	static void init() {
-		pool = new LinkedList<PoolItem>();
+		if (pool == null) {
-		count = 0;
+			pool = new LinkedList<PoolItem>();
+			count = 0;
+		}
 	}
 
 	static PoolItem get() {
-		if (count == 0)
-			return new PoolItem();
-
-		PoolItem it;
 		synchronized (pool) {
-			count--;
-			it = pool.pop();
-			it.used = 0;
-		}
 
-		return it;
+			if (count == 0)
+				return new PoolItem();
+
+			count--;
+			PoolItem it = pool.pop();
+			it.used = 0;
+			return it;
+		}
 	}
 
 	static void add(LinkedList<PoolItem> items) {
-		int size = items.size();
 		synchronized (pool) {
+			int size = items.size();
+
 			while (count < 4096 && size-- > 0) {
 				count++;
 				pool.add(items.pop());

src/org/mapsforge/android/glrenderer/LineLayers.java

@@ -61,7 +61,7 @@ class LineLayers {
 					ByteOrder.nativeOrder());
 			fbuf = bbuf.asFloatBuffer();
 		} else {
-			fbuf.position(0);
+			fbuf.clear();
 		}
 		int pos = 0;
 
@@ -81,7 +81,7 @@ class LineLayers {
 			l.pool = null;
 		}
 
-		fbuf.position(0);
+		fbuf.flip();
 
 		// not needed for drawing
 		layers = null;
@@ -105,7 +105,7 @@ class LineLayers {
 					ByteOrder.nativeOrder());
 			sbuf = bbuf.asShortBuffer();
 		} else {
-			sbuf.position(0);
+			sbuf.clear();
 		}
 		int pos = 0;
 
@@ -129,7 +129,7 @@ class LineLayers {
 			l.pool = null;
 		}
 
-		sbuf.position(0);
+		sbuf.flip();
 
 		// not needed for drawing
 		layers = null;

src/org/mapsforge/android/glrenderer/MapGenerator.java

@@ -14,29 +14,19 @@
  */
 package org.mapsforge.android.glrenderer;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-
-import javax.xml.parsers.ParserConfigurationException;
-
-import org.mapsforge.android.MapView;
 import org.mapsforge.android.mapgenerator.IMapGenerator;
-import org.mapsforge.android.mapgenerator.JobTheme;
 import org.mapsforge.android.mapgenerator.MapGeneratorJob;
 import org.mapsforge.android.rendertheme.IRenderCallback;
 import org.mapsforge.android.rendertheme.RenderTheme;
-import org.mapsforge.android.rendertheme.RenderThemeHandler;
 import org.mapsforge.android.rendertheme.renderinstruction.Area;
 import org.mapsforge.android.rendertheme.renderinstruction.Line;
-import org.mapsforge.core.GeoPoint;
+import org.mapsforge.android.rendertheme.renderinstruction.RenderInstruction;
-import org.mapsforge.core.WebMercator;
+import org.mapsforge.core.MercatorProjection;
 import org.mapsforge.core.Tag;
 import org.mapsforge.core.Tile;
+import org.mapsforge.core.WebMercator;
 import org.mapsforge.database.IMapDatabase;
 import org.mapsforge.database.IMapDatabaseCallback;
-import org.mapsforge.database.MapFileInfo;
-import org.xml.sax.SAXException;
 
 import android.graphics.Bitmap;
 import android.graphics.Color;
@@ -46,33 +36,26 @@ import android.util.Log;
 /**
  * 
  */
-public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
+public class MapGenerator implements IMapGenerator, IRenderCallback, IMapDatabaseCallback {
-		IMapDatabaseCallback {
+
-	private static String TAG = DatabaseRenderer.class.getName();
+	private static String TAG = MapGenerator.class.getName();
 
-	private static final byte ZOOM_MAX = 22;
-	private static final Byte DEFAULT_START_ZOOM_LEVEL = Byte.valueOf((byte) 16);
 	private static final double PI180 = (Math.PI / 180) / 1000000.0;
 	private static final double PIx4 = Math.PI * 4;
 	private static final double STROKE_INCREASE = Math.sqrt(2);
 	private static final byte STROKE_MIN_ZOOM_LEVEL = 12;
 	private static final byte LAYERS = 11;
+	private static final double f900913 = 20037508.342789244;
 
 	private static RenderTheme renderTheme;
 
 	private IMapDatabase mMapDatabase;
 
-	private JobTheme mPreviousJobTheme;
-	// private float mPreviousTextScale;
-	private byte mPreviousZoomLevel;
-
 	private GLMapTile mCurrentTile;
 
 	private float[] mWayNodes;
 	private int[] mWays;
 
-	private ArrayList<float[]> mCurrentLines;
-
 	private LineLayers mLineLayers;
 	private PolygonLayers mPolyLayers;
 	private MeshLayers mMeshLayers;
@@ -81,14 +64,13 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	private int mLevels;
 
 	private boolean useSphericalMercator = false;
+	private float mStrokeScale = 1.0f;
 
 	/**
 	 * 
 	 */
-	public DatabaseRenderer() {
+	public MapGenerator() {
 		Log.d(TAG, "init DatabaseRenderer");
-		mCurrentLines = new ArrayList<float[]>();
-
 		LayerPool.init();
 	}
 
@@ -107,7 +89,6 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	private boolean mProjected;
 	private boolean mProjectedResult;
 	private float mSimplify;
-	private static final double f900913 = 20037508.342789244;
 
 	private boolean projectToTile(boolean area) {
 		if (mProjected)
@@ -136,6 +117,8 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 
 		for (int pos = 0, outPos = 0, i = 0, m = mWays.length; i < m; i++) {
 			int len = mWays[i];
+			if (len == 0)
+				continue;
 			int cnt = 0;
 			float lat, lon, prevLon = 0, prevLat = 0;
 
@@ -197,6 +180,8 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	private boolean firstMatch;
 	private boolean prevClosed;
 
+	private RenderInstruction[] mRenderInstructions = null;
+
 	@Override
 	public void renderWay(byte layer, Tag[] tags, float[] wayNodes, int[] wayLength,
 			boolean changed) {
@@ -220,17 +205,20 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 				mSimplify = 0;
 		}
 
-		mCurrentLines.clear();
 		mWayNodes = wayNodes;
 		mWays = wayLength;
 
 		if (!firstMatch && prevClosed == closed && !changed) {
-			DatabaseRenderer.renderTheme.matchWay(this, tags,
+			if (mRenderInstructions != null) {
-					(byte) (mCurrentTile.zoomLevel + 0),
+				for (int i = 0, n = mRenderInstructions.length; i < n; i++)
-					closed, false);
+					mRenderInstructions[i].renderWay(this, tags);
+			}
+			// MapGenerator.renderTheme.matchWay(this, tags,
+			// (byte) (mCurrentTile.zoomLevel + 0),
+			// closed, false);
 		} else {
 			prevClosed = closed;
-			DatabaseRenderer.renderTheme.matchWay(this, tags,
+			mRenderInstructions = MapGenerator.renderTheme.matchWay(this, tags,
 					(byte) (mCurrentTile.zoomLevel + 0),
 					closed, true);
 		}
@@ -273,9 +261,6 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	@Override
 	public void renderWay(Line line) {
 
-		// if (prevClosed && !mProjected)
-		// return;
-
 		projectToTile(false);
 
 		LineLayer outlineLayer = null;
@@ -284,11 +269,12 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 
 		float w = line.strokeWidth;
 
-		if (!line.fixed)
+		if (!line.fixed) {
-			w *= mStrokeScale / 1.5f;
+			w *= mStrokeScale;
-
+			w *= mProjectionScaleFactor;
+		}
 		if (line.outline != -1) {
-			Line outline = DatabaseRenderer.renderTheme.getOutline(line.outline);
+			Line outline = MapGenerator.renderTheme.getOutline(line.outline);
 			if (outline != null) {
 				outlineLayer = mLineLayers.getLayer(mDrawingLayer + outline.level,
 						outline.color, true, false);
@@ -363,33 +349,19 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 		if (mMapDatabase == null)
 			return false;
 
+		useSphericalMercator = WebMercator.NAME.equals(mMapDatabase.getMapProjection());
+
 		mCurrentTile = (GLMapTile) mapGeneratorJob.tile;
 		mDebugDrawPolygons = !mapGeneratorJob.debugSettings.mDisablePolygons;
 
-		// FIXME still chance of concurrency with maprenderer updateVisibleList ?
 		if (mCurrentTile.isLoading || mCurrentTile.isDrawn)
 			return false;
 
 		mCurrentTile.isLoading = true;
 
-		JobTheme jobTheme = mapGeneratorJob.jobParameters.jobTheme;
+		mLevels = MapGenerator.renderTheme.getLevels();
 
-		if (jobTheme != mPreviousJobTheme) {
+		setScaleStrokeWidth(mCurrentTile.zoomLevel);
-			if (!setRenderTheme(jobTheme)) {
-				mPreviousJobTheme = null;
-				return false;
-			}
-
-			mPreviousJobTheme = jobTheme;
-			mPreviousZoomLevel = Byte.MIN_VALUE;
-			mLevels = DatabaseRenderer.renderTheme.getLevels();
-		}
-
-		byte zoomLevel = mCurrentTile.zoomLevel;
-		if (zoomLevel != mPreviousZoomLevel) {
-			setScaleStrokeWidth(zoomLevel);
-			mPreviousZoomLevel = zoomLevel;
-		}
 
 		mLineLayers = new LineLayers();
 		mPolyLayers = new PolygonLayers();
@@ -399,81 +371,32 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 		mCurrentTile.meshLayers = mMeshLayers;
 
 		firstMatch = true;
-		mMapDatabase.executeQuery(mCurrentTile, this);
 
-		// Log.d(TAG, "loaded " + mCurrentTile);
+		mProjectionScaleFactor = (float) (1.0 / Math.cos(MercatorProjection
+				.pixelYToLatitude(mCurrentTile.pixelY, mCurrentTile.zoomLevel)
+				* (Math.PI / 180))) / 1.5f;
+		mMapDatabase.executeQuery(mCurrentTile, this);
 
 		if (mapGeneratorJob.debugSettings.mDrawTileFrames) {
 			float[] coords = { 0, 0, 0, Tile.TILE_SIZE, Tile.TILE_SIZE, Tile.TILE_SIZE,
 					Tile.TILE_SIZE, 0, 0, 0 };
 			LineLayer ll = mLineLayers.getLayer(Integer.MAX_VALUE, Color.BLACK, false,
 					true);
-			ll.addLine(coords, 0, coords.length, 1.0f, false);
+			ll.addLine(coords, 0, coords.length, 2.0f, false);
 		}
 
 		mCurrentTile.newData = true;
 		return true;
 	}
 
-	@Override
+	private float mProjectionScaleFactor;
-	public GeoPoint getStartPoint() {
-		useSphericalMercator = false;
-
-		if (mMapDatabase != null && mMapDatabase.hasOpenFile()) {
-			MapFileInfo mapFileInfo = mMapDatabase.getMapFileInfo();
-
-			if (WebMercator.NAME.equals(mapFileInfo.projectionName)) {
-				Log.d(TAG, "using Spherical Mercator");
-
-				useSphericalMercator = true;
-			}
-			if (mapFileInfo.startPosition != null) {
-				return mapFileInfo.startPosition;
-			} else if (mapFileInfo.mapCenter != null) {
-				return mapFileInfo.mapCenter;
-			}
-
-		}
-		return null;
-	}
-
-	@Override
-	public Byte getStartZoomLevel() {
-		return DEFAULT_START_ZOOM_LEVEL;
-	}
-
-	@Override
-	public byte getZoomLevelMax() {
-		return ZOOM_MAX;
-	}
-
-	private static boolean setRenderTheme(JobTheme jobTheme) {
-		InputStream inputStream = null;
-		try {
-			inputStream = jobTheme.getRenderThemeAsStream();
-			DatabaseRenderer.renderTheme = RenderThemeHandler.getRenderTheme(inputStream);
-			return true;
-		} catch (ParserConfigurationException e) {
-			Log.e(TAG, e.getMessage());
-		} catch (SAXException e) {
-			Log.e(TAG, e.getMessage());
-		} catch (IOException e) {
-			Log.e(TAG, e.getMessage());
-		} finally {
-			try {
-				if (inputStream != null) {
-					inputStream.close();
-				}
-			} catch (IOException e) {
-				Log.e(TAG, e.getMessage());
-			}
-		}
-		return false;
-	}
 
 	private static byte getValidLayer(byte layer) {
 		if (layer < 0) {
 			return 0;
+			/**
+			 * return instances of MapRenderer
+			 */
 		} else if (layer >= LAYERS) {
 			return LAYERS - 1;
 		} else {
@@ -481,9 +404,17 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 		}
 	}
 
-	@Override
+	/**
-	public MapRenderer getMapRenderer(MapView mapView) {
+	 * Sets the scale stroke factor for the given zoom level.
-		return new MapRenderer(mapView);
+	 * 
+	 * @param zoomLevel
+	 *            the zoom level for which the scale stroke factor should be set.
+	 */
+	private void setScaleStrokeWidth(byte zoomLevel) {
+		int zoomLevelDiff = Math.max(zoomLevel - STROKE_MIN_ZOOM_LEVEL, 0);
+		mStrokeScale = (float) Math.pow(STROKE_INCREASE, zoomLevelDiff);
+		if (mStrokeScale < 1)
+			mStrokeScale = 1;
 	}
 
 	@Override
@@ -491,19 +422,13 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 		mMapDatabase = mapDatabase;
 	}
 
-	private static float mStrokeScale = 1.0f;
+	@Override
+	public IMapDatabase getMapDatabase() {
+		return mMapDatabase;
+	}
 
-	/**
+	@Override
-	 * Sets the scale stroke factor for the given zoom level.
+	public void setRenderTheme(RenderTheme theme) {
-	 * 
+		MapGenerator.renderTheme = theme;
-	 * @param zoomLevel
-	 *            the zoom level for which the scale stroke factor should be set.
-	 */
-	private static void setScaleStrokeWidth(byte zoomLevel) {
-		int zoomLevelDiff = Math.max(zoomLevel - STROKE_MIN_ZOOM_LEVEL, 0);
-		mStrokeScale = (float) Math.pow(STROKE_INCREASE, zoomLevelDiff);
-		if (mStrokeScale < 1)
-			mStrokeScale = 1;
-		// DatabaseRenderer.renderTheme.scaleStrokeWidth(mStrokeScale);
 	}
 }

src/org/mapsforge/android/glrenderer/MapRenderer.java

@@ -14,6 +14,57 @@
  */
 package org.mapsforge.android.glrenderer;
 
+import static android.opengl.GLES20.GL_ARRAY_BUFFER;
+import static android.opengl.GLES20.GL_BLEND;
+import static android.opengl.GLES20.GL_COLOR_BUFFER_BIT;
+import static android.opengl.GLES20.GL_DEPTH_TEST;
+import static android.opengl.GLES20.GL_DITHER;
+import static android.opengl.GLES20.GL_DYNAMIC_DRAW;
+import static android.opengl.GLES20.GL_EQUAL;
+import static android.opengl.GLES20.GL_EXTENSIONS;
+import static android.opengl.GLES20.GL_FLOAT;
+import static android.opengl.GLES20.GL_INVERT;
+import static android.opengl.GLES20.GL_NEVER;
+import static android.opengl.GLES20.GL_ONE_MINUS_SRC_ALPHA;
+import static android.opengl.GLES20.GL_SCISSOR_TEST;
+import static android.opengl.GLES20.GL_SRC_ALPHA;
+import static android.opengl.GLES20.GL_STENCIL_BUFFER_BIT;
+import static android.opengl.GLES20.GL_STENCIL_TEST;
+import static android.opengl.GLES20.GL_TRIANGLES;
+import static android.opengl.GLES20.GL_TRIANGLE_FAN;
+import static android.opengl.GLES20.GL_TRIANGLE_STRIP;
+import static android.opengl.GLES20.GL_ZERO;
+import static android.opengl.GLES20.glBindBuffer;
+import static android.opengl.GLES20.glBlendFunc;
+import static android.opengl.GLES20.glBufferData;
+import static android.opengl.GLES20.glClear;
+import static android.opengl.GLES20.glClearColor;
+import static android.opengl.GLES20.glClearStencil;
+import static android.opengl.GLES20.glColorMask;
+import static android.opengl.GLES20.glDepthMask;
+import static android.opengl.GLES20.glDisable;
+import static android.opengl.GLES20.glDisableVertexAttribArray;
+import static android.opengl.GLES20.glDrawArrays;
+import static android.opengl.GLES20.glEnable;
+import static android.opengl.GLES20.glEnableVertexAttribArray;
+import static android.opengl.GLES20.glFinish;
+import static android.opengl.GLES20.glGenBuffers;
+import static android.opengl.GLES20.glGetAttribLocation;
+import static android.opengl.GLES20.glGetString;
+import static android.opengl.GLES20.glGetUniformLocation;
+import static android.opengl.GLES20.glScissor;
+import static android.opengl.GLES20.glStencilFunc;
+import static android.opengl.GLES20.glStencilMask;
+import static android.opengl.GLES20.glStencilOp;
+import static android.opengl.GLES20.glUniform1f;
+import static android.opengl.GLES20.glUniform2f;
+import static android.opengl.GLES20.glUniform4f;
+import static android.opengl.GLES20.glUniform4fv;
+import static android.opengl.GLES20.glUniformMatrix4fv;
+import static android.opengl.GLES20.glUseProgram;
+import static android.opengl.GLES20.glVertexAttribPointer;
+import static android.opengl.GLES20.glViewport;
+
 import java.nio.FloatBuffer;
 import java.nio.ShortBuffer;
 import java.util.ArrayList;
@@ -25,10 +76,9 @@ import javax.microedition.khronos.opengles.GL10;
 
 import org.mapsforge.android.DebugSettings;
 import org.mapsforge.android.MapView;
-import org.mapsforge.android.mapgenerator.JobParameters;
 import org.mapsforge.android.mapgenerator.IMapGenerator;
+import org.mapsforge.android.mapgenerator.JobParameters;
 import org.mapsforge.android.mapgenerator.MapGeneratorJob;
-import org.mapsforge.android.mapgenerator.MapWorker;
 import org.mapsforge.android.mapgenerator.TileCacheKey;
 import org.mapsforge.android.mapgenerator.TileDistanceSort;
 import org.mapsforge.android.utils.GlConfigChooser;
@@ -47,12 +97,15 @@ import android.util.Log;
  * TODO - use proxy child/parent tile nearer to current tile (currently it is always parent first) - use stencil instead
  * of scissor mask for rotation - draw up to two parents above current tile, maybe prefetch parent
  */
-public class MapRenderer implements org.mapsforge.android.MapRenderer {
+public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 	private static final String TAG = "MapRenderer";
+	private static final int MB = 1024 * 1024;
+
+	private boolean mTriangulate = false;
 
 	private static int CACHE_TILES_MAX = 400;
 	private static int CACHE_TILES = CACHE_TILES_MAX;
-	private static final int LIMIT_BUFFERS = 32 * (1024 * 1024);
+	private static int LIMIT_BUFFERS = 20 * MB;
 
 	private static final int OES_HALF_FLOAT = 0x8D61;
 	private static final int FLOAT_BYTES = 4;
@@ -64,8 +117,6 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 	private static int STENCIL_BITS = 8;
 
 	private final MapView mMapView;
-	private final MapWorker mMapWorker;
-
 	private final ArrayList<MapGeneratorJob> mJobList;
 	private final ArrayList<VertexBufferObject> mVBOs;
 	private final TileCacheKey mTileCacheKey;
@@ -88,9 +139,8 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 	// current center tile
 	private long mTileX, mTileY;
 
-	private FloatBuffer floatBuffer = null;
+	private FloatBuffer floatBuffer[];
-	// private ByteBuffer byteBuffer = null;
+	private ShortBuffer shortBuffer[];
-	private ShortBuffer shortBuffer = null;
 
 	boolean useHalfFloat = false;
 
@@ -147,7 +197,6 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 	public MapRenderer(MapView mapView) {
 		Log.d(TAG, "init MapRenderer");
 		mMapView = mapView;
-		mMapWorker = mapView.getMapWorker();
 		mDebugSettings = mapView.getDebugSettings();
 
 		mVBOs = new ArrayList<VertexBufferObject>();
@@ -316,7 +365,6 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		mJobList.clear();
 		mJobParameter = mMapView.getJobParameters();
 
-		IMapGenerator mapGenerator = mMapView.getMapGenerator();
 		int tiles = 0;
 		if (newTiles == null)
 			return false;
@@ -376,19 +424,19 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 				newTiles.tiles[tiles++] = tile;
 
 				if (!tile.isDrawn && !tile.newData && !tile.isLoading) {
-					MapGeneratorJob job = new MapGeneratorJob(tile, mapGenerator,
+					MapGeneratorJob job = new MapGeneratorJob(tile, mJobParameter,
-							mJobParameter, mDebugSettings);
+							mDebugSettings);
 					mJobList.add(job);
 				}
 
 				// prefetch parent
-				if (tile.parent != null && !tile.parent.isDrawn && !tile.parent.newData
+				// if (tile.parent != null && !tile.parent.isDrawn && !tile.parent.newData
-						&& !tile.parent.isLoading) {
+				// && !tile.parent.isLoading) {
-					MapGeneratorJob job = new MapGeneratorJob(tile.parent, mapGenerator,
+				// MapGeneratorJob job = new MapGeneratorJob(tile.parent, mJobParameter,
-							mJobParameter, mDebugSettings);
+				// mDebugSettings);
-					if (!mJobList.contains(job))
+				// if (!mJobList.contains(job))
-						mJobList.add(job);
+				// mJobList.add(job);
-				}
+				// }
 			}
 		}
 
@@ -419,12 +467,8 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 		limitCache(removes);
 
-		if (mJobList.size() > 0) {
+		if (mJobList.size() > 0)
-			mMapView.getJobQueue().setJobs(mJobList);
+			mMapView.addJobs(mJobList);
-			synchronized (mMapWorker) {
-				mMapWorker.notify();
-			}
-		}
 
 		return true;
 	}
@@ -513,7 +557,7 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 	@Override
 	public boolean passTile(MapGeneratorJob mapGeneratorJob) {
-		if (!timing)
+		if (!timing && mapGeneratorJob.tile.isVisible)
 			mMapView.requestRender();
 		return true;
 	}
@@ -524,10 +568,10 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		boolean blend = false;
 
 		// draw to framebuffer
-		GLES20.glColorMask(true, true, true, true);
+		glColorMask(true, true, true, true);
 
 		// do not modify stencil buffer
-		GLES20.glStencilMask(0);
+		glStencilMask(0);
 
 		for (int c = 0; c < count; c++) {
 			PolygonLayer l = mFillPolys[c];
@@ -541,26 +585,26 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 					alpha = 1.0f;
 
 				if (!blend) {
-					GLES20.glEnable(GLES20.GL_BLEND);
+					glEnable(GL_BLEND);
 					blend = true;
 				}
 			} else if (blend) {
-				GLES20.glDisable(GLES20.GL_BLEND);
+				glDisable(GL_BLEND);
 				blend = false;
 			}
 
-			GLES20.glUniform4f(gPolygonColorHandle,
+			glUniform4f(gPolygonColorHandle,
 					l.colors[0], l.colors[1], l.colors[2], alpha);
 
 			// set stencil buffer mask used to draw this layer
-			GLES20.glStencilFunc(GLES20.GL_EQUAL, 0xff, 1 << c);
+			glStencilFunc(GL_EQUAL, 0xff, 1 << c);
 
 			// draw tile fill coordinates
-			GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
+			glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 		}
 
 		if (blend)
-			GLES20.glDisable(GLES20.GL_BLEND);
+			glDisable(GL_BLEND);
 	}
 
 	private boolean drawPolygons(GLMapTile tile, int diff) {
@@ -569,63 +613,68 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		if (tile.polygonLayers == null || tile.polygonLayers.array == null)
 			return true;
 
-		GLES20.glScissor(tile.sx, tile.sy, tile.sw, tile.sh);
+		glScissor(tile.sx, tile.sy, tile.sw, tile.sh);
 
-		GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, tile.polygonVBO.id);
+		if (mLastBoundVBO != tile.polygonVBO.id) {
+			mLastBoundVBO = tile.polygonVBO.id;
+			glBindBuffer(GL_ARRAY_BUFFER, tile.polygonVBO.id);
 
-		if (useHalfFloat) {
+			if (useHalfFloat) {
-			GLES20.glVertexAttribPointer(gPolygonVertexPositionHandle, 2,
+				glVertexAttribPointer(gPolygonVertexPositionHandle, 2,
-					OES_HALF_FLOAT, false, 0,
+						OES_HALF_FLOAT, false, 0,
-					POLYGON_VERTICES_DATA_POS_OFFSET);
+						POLYGON_VERTICES_DATA_POS_OFFSET);
-		} else {
+			} else {
-			GLES20.glVertexAttribPointer(gPolygonVertexPositionHandle, 2,
+				glVertexAttribPointer(gPolygonVertexPositionHandle, 2,
-					GLES20.GL_FLOAT, false, 0,
+						GL_FLOAT, false, 0,
-					POLYGON_VERTICES_DATA_POS_OFFSET);
+						POLYGON_VERTICES_DATA_POS_OFFSET);
+			}
+
+			// glBindBuffer(GL_ARRAY_BUFFER, 0);
 		}
-
-		GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, 0);
-
 		setMatrix(tile, diff);
-		GLES20.glUniformMatrix4fv(gPolygonMatrixHandle, 1, false, mMVPMatrix, 0);
+		glUniformMatrix4fv(gPolygonMatrixHandle, 1, false, mMVPMatrix, 0);
 
 		boolean firstPass = true;
 
 		for (int i = 0, n = tile.polygonLayers.array.length; i < n; i++) {
 			PolygonLayer l = tile.polygonLayers.array[i];
 
-			if (cnt == 0) {
-				// disable drawing to framebuffer
-				GLES20.glColorMask(false, false, false, false);
-
-				// never pass the test, i.e. always apply first stencil op (sfail)
-				GLES20.glStencilFunc(GLES20.GL_NEVER, 0, 0xff);
-
-				if (firstPass)
-					firstPass = false;
-				else {
-					// clear stencilbuffer
-					GLES20.glStencilMask(0xFF);
-					GLES20.glClear(GLES20.GL_STENCIL_BUFFER_BIT);
-
-					// clear stencilbuffer (tile region)
-					// GLES20.glStencilOp(GLES20.GL_ZERO, GLES20.GL_ZERO, GLES20.GL_ZERO);
-					// GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
-				}
-
-				// stencil op for stencil method polygon drawing
-				GLES20.glStencilOp(GLES20.GL_INVERT, GLES20.GL_INVERT, GLES20.GL_INVERT);
-			}
-
 			// fade out polygon layers (set in RederTheme)
 			if (l.fadeLevel > 0 && l.fadeLevel > mDrawZ)
 				continue;
 
+			if (cnt == 0) {
+				// disable drawing to framebuffer
+				glColorMask(false, false, false, false);
+
+				// never pass the test, i.e. always apply first stencil op (sfail)
+				glStencilFunc(GL_NEVER, 0, 0xff);
+
+				if (firstPass)
+					firstPass = false;
+				else {
+					// eeek, nexus! - cant do old-school polygons
+					// glFinish();
+
+					// clear stencilbuffer
+					glStencilMask(0xFF);
+					// glClear(GL_STENCIL_BUFFER_BIT);
+
+					// clear stencilbuffer (tile region)
+					glStencilOp(GL_ZERO, GL_ZERO, GL_ZERO);
+					glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+				}
+
+				// stencil op for stencil method polygon drawing
+				glStencilOp(GL_INVERT, GL_INVERT, GL_INVERT);
+			}
+
 			mFillPolys[cnt] = l;
 
 			// set stencil mask to draw to
-			GLES20.glStencilMask(1 << cnt++);
+			glStencilMask(1 << cnt++);
 
-			GLES20.glDrawArrays(GLES20.GL_TRIANGLE_FAN, l.offset, l.verticesCnt);
+			glDrawArrays(GL_TRIANGLE_FAN, l.offset, l.verticesCnt);
 
 			// draw up to 8 layers into stencil buffer
 			if (cnt == STENCIL_BITS) {
@@ -634,47 +683,54 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 			}
 		}
 
-		if (cnt > 0)
+		if (cnt > 0) {
 			fillPolygons(cnt);
-
+			// eeek, nexus! - cant do old-school polygons
+			// glFinish();
+		}
 		return true;
 	}
 
+	private int mLastBoundVBO;
+
 	private boolean drawTriangles(GLMapTile tile, int diff) {
 
 		if (tile.meshLayers == null || tile.meshLayers.array == null)
 			return true;
 
-		GLES20.glScissor(tile.sx, tile.sy, tile.sw, tile.sh);
+		glScissor(tile.sx, tile.sy, tile.sw, tile.sh);
 
-		GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, tile.polygonVBO.id);
+		if (mLastBoundVBO != tile.polygonVBO.id) {
+			mLastBoundVBO = tile.polygonVBO.id;
+			glBindBuffer(GL_ARRAY_BUFFER, tile.polygonVBO.id);
 
-		if (useHalfFloat) {
+			if (useHalfFloat) {
-			GLES20.glVertexAttribPointer(gPolygonVertexPositionHandle, 2,
+				glVertexAttribPointer(gPolygonVertexPositionHandle, 2,
-					OES_HALF_FLOAT, false, 0,
+						OES_HALF_FLOAT, false, 0,
-					POLYGON_VERTICES_DATA_POS_OFFSET);
+						POLYGON_VERTICES_DATA_POS_OFFSET);
-		} else {
+			} else {
-			GLES20.glVertexAttribPointer(gPolygonVertexPositionHandle, 2,
+				glVertexAttribPointer(gPolygonVertexPositionHandle, 2,
-					GLES20.GL_FLOAT, false, 0,
+						GL_FLOAT, false, 0,
-					POLYGON_VERTICES_DATA_POS_OFFSET);
+						POLYGON_VERTICES_DATA_POS_OFFSET);
+			}
+
+			// glBindBuffer(GL_ARRAY_BUFFER, 0);
 		}
-
-		GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, 0);
-
 		setMatrix(tile, diff);
-		GLES20.glUniformMatrix4fv(gPolygonMatrixHandle, 1, false, mMVPMatrix, 0);
+		glUniformMatrix4fv(gPolygonMatrixHandle, 1, false, mMVPMatrix, 0);
 
 		MeshLayer[] layers = tile.meshLayers.array;
 
 		for (int i = 0, n = layers.length; i < n; i++) {
 			MeshLayer l = layers[i];
-			GLES20.glUniform4fv(gPolygonColorHandle, 1, l.colors, 0);
+			glUniform4fv(gPolygonColorHandle, 1, l.colors, 0);
 
-			// GLES20.glUniform4f(gPolygonColorHandle, 1, 0, 0, 1);
+			// glUniform4f(gPolygonColorHandle, 1, 0, 0, 1);
 
 			// System.out.println("draw: " + l.offset + " " + l.verticesCnt);
-			GLES20.glDrawArrays(GLES20.GL_TRIANGLES, l.offset, l.verticesCnt);
+			glDrawArrays(GL_TRIANGLES, l.offset, l.verticesCnt);
 		}
+
 		return true;
 	}
 
@@ -684,30 +740,32 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		if (tile.lineLayers == null || tile.lineLayers.array == null)
 			return false;
 
-		GLES20.glScissor(tile.sx, tile.sy, tile.sw, tile.sh);
+		glScissor(tile.sx, tile.sy, tile.sw, tile.sh);
 
-		GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, tile.lineVBO.id);
+		if (mLastBoundVBO != tile.lineVBO.id) {
+			mLastBoundVBO = tile.lineVBO.id;
+			glBindBuffer(GL_ARRAY_BUFFER, tile.lineVBO.id);
 
-		if (useHalfFloat) {
+			if (useHalfFloat) {
-			GLES20.glVertexAttribPointer(gLineVertexPositionHandle, 2, OES_HALF_FLOAT,
+				glVertexAttribPointer(gLineVertexPositionHandle, 2, OES_HALF_FLOAT,
-					false, 8, LINE_VERTICES_DATA_POS_OFFSET);
+						false, 8, LINE_VERTICES_DATA_POS_OFFSET);
 
-			GLES20.glVertexAttribPointer(gLineTexturePositionHandle, 2, OES_HALF_FLOAT,
+				glVertexAttribPointer(gLineTexturePositionHandle, 2, OES_HALF_FLOAT,
-					false, 8, LINE_VERTICES_DATA_TEX_OFFSET >> 1);
+						false, 8, LINE_VERTICES_DATA_TEX_OFFSET >> 1);
-		} else {
+			} else {
-			GLES20.glVertexAttribPointer(gLineVertexPositionHandle, 2, GLES20.GL_FLOAT,
+				glVertexAttribPointer(gLineVertexPositionHandle, 2, GL_FLOAT,
-					false, 16, LINE_VERTICES_DATA_POS_OFFSET);
+						false, 16, LINE_VERTICES_DATA_POS_OFFSET);
 
-			GLES20.glVertexAttribPointer(gLineTexturePositionHandle, 2, GLES20.GL_FLOAT,
+				glVertexAttribPointer(gLineTexturePositionHandle, 2, GL_FLOAT,
-					false, 16, LINE_VERTICES_DATA_TEX_OFFSET);
+						false, 16, LINE_VERTICES_DATA_TEX_OFFSET);
+			}
+			// glBindBuffer(GL_ARRAY_BUFFER, 0);
 		}
-		GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, 0);
-
 		if (diff != 0)
 			z = (diff > 0) ? (1 << diff) : 1.0f / (1 << -diff);
 
 		setMatrix(tile, diff);
-		GLES20.glUniformMatrix4fv(gLineMatrixHandle, 1, false, mMVPMatrix, 0);
+		glUniformMatrix4fv(gLineMatrixHandle, 1, false, mMVPMatrix, 0);
 
 		LineLayer[] layers = tile.lineLayers.array;
 
@@ -729,42 +787,37 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 				drawFixed = l.isFixed;
 
 				if (drawOutlines) {
-					GLES20.glUniform2f(gLineModeHandle, 0, wdiv);
+					glUniform2f(gLineModeHandle, 0, wdiv);
 				} else if (!drawFixed) {
-					GLES20.glUniform2f(gLineModeHandle, 0, wdiv * 0.98f);
+					glUniform2f(gLineModeHandle, 0, wdiv * 0.98f);
 				}
 			}
 
 			if (drawFixed) {
 				if (l.width < 1.0)
-					GLES20.glUniform2f(gLineModeHandle, 0.4f, fdiv);
+					glUniform2f(gLineModeHandle, 0.4f, fdiv);
 				else
-					GLES20.glUniform2f(gLineModeHandle, 0, fdiv);
+					glUniform2f(gLineModeHandle, 0, fdiv);
 			}
-			GLES20.glUniform4fv(gLineColorHandle, 1, l.colors, 0);
+			glUniform4fv(gLineColorHandle, 1, l.colors, 0);
 
 			if (drawOutlines) {
 				for (int j = 0, m = l.outlines.size(); j < m; j++) {
 					LineLayer o = l.outlines.get(j);
 
 					if (mSimpleLines)
-						GLES20.glUniform1f(gLineWidthHandle, o.width);
+						glUniform1f(gLineWidthHandle, o.width);
 
-					GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, o.offset, o.verticesCnt);
+					glDrawArrays(GL_TRIANGLE_STRIP, o.offset, o.verticesCnt);
 				}
 			}
 			else {
 				if (mSimpleLines)
-					GLES20.glUniform1f(gLineWidthHandle, l.width);
+					glUniform1f(gLineWidthHandle, l.width);
 
-				GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, l.offset, l.verticesCnt);
+				glDrawArrays(GL_TRIANGLE_STRIP, l.offset, l.verticesCnt);
 			}
-			// cnt += l.verticesCnt;
 		}
-		// GLES20.glUniform2f(gLineModeHandle, 0, wdiv);
-		// float[] c = { 1, 0, 0, 1 };
-		// GLES20.glUniform4fv(gLineColorHandle, 1, c, 0);
-		// GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, cnt);
 
 		return true;
 	}
@@ -940,47 +993,53 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		}
 	}
 
-	private boolean mTriangulate = false;
-
 	private int uploadCnt = 0;
 
 	private boolean uploadTileData(GLMapTile tile) {
-		// not sure about this, but seems it fixes some flickering when
-		// multiple tiles are uploaded in one go. but if this is really
-		// the issue tiles should stay corrupted..
 
-		if (uploadCnt++ > 0)
+		// double start = SystemClock.uptimeMillis();
-			GLES20.glFinish();
 
+		// use multiple buffers to avoid overwriting buffer while current data is uploaded
+		// (or rather the blocking which is required to avoid this)
+		if (uploadCnt >= 10) {
+			// mMapView.requestRender();
+			// return false;
+			uploadCnt = 0;
+			glFinish();
+		}
+
+		// Upload line data to vertex buffer object
 		if (tile.lineVBO == null) {
-			// Upload line data to vertex buffer object
 			synchronized (mVBOs) {
-				if (mVBOs.size() < 2)
+				if (mVBOs.size() < 2) {
+					Log.d(TAG, "uploadTileData, no VBOs left");
 					return false;
-
+				}
 				tile.lineVBO = mVBOs.remove(mVBOs.size() - 1);
 				tile.polygonVBO = mVBOs.remove(mVBOs.size() - 1);
 			}
 		}
 		if (useHalfFloat)
-			shortBuffer = tile.lineLayers.compileLayerData(shortBuffer);
+			shortBuffer[uploadCnt * 2] = tile.lineLayers
+					.compileLayerData(shortBuffer[uploadCnt * 2]);
 		else
-			floatBuffer = tile.lineLayers.compileLayerData(floatBuffer);
+			floatBuffer[uploadCnt * 2] = tile.lineLayers
+					.compileLayerData(floatBuffer[uploadCnt * 2]);
 
 		if (tile.lineLayers.size > 0) {
 			mBufferMemoryUsage -= tile.lineVBO.size;
 
-			GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, tile.lineVBO.id);
+			glBindBuffer(GL_ARRAY_BUFFER, tile.lineVBO.id);
-			GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, 0, null, GLES20.GL_STATIC_DRAW);
+			// glBufferData(GL_ARRAY_BUFFER, 0, null, GL_DYNAMIC_DRAW);
 
 			if (useHalfFloat) {
 				tile.lineVBO.size = tile.lineLayers.size * SHORT_BYTES;
-				GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, tile.lineVBO.size,
+				glBufferData(GL_ARRAY_BUFFER, tile.lineVBO.size,
-						shortBuffer, GLES20.GL_STATIC_DRAW);
+						shortBuffer[uploadCnt * 2], GL_DYNAMIC_DRAW);
 			} else {
 				tile.lineVBO.size = tile.lineLayers.size * FLOAT_BYTES;
-				GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, tile.lineVBO.size,
+				glBufferData(GL_ARRAY_BUFFER, tile.lineVBO.size,
-						floatBuffer, GLES20.GL_STATIC_DRAW);
+						floatBuffer[uploadCnt * 2], GL_DYNAMIC_DRAW);
 			}
 
 			mBufferMemoryUsage += tile.lineVBO.size;
@@ -991,26 +1050,28 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 		if (!mTriangulate) {
 			if (useHalfFloat)
-				shortBuffer = tile.polygonLayers.compileLayerData(shortBuffer);
+				shortBuffer[uploadCnt * 2 + 1] = tile.polygonLayers
+						.compileLayerData(shortBuffer[uploadCnt * 2 + 1]);
 			else
-				floatBuffer = tile.polygonLayers.compileLayerData(floatBuffer);
+				floatBuffer[uploadCnt * 2 + 1] = tile.polygonLayers
+						.compileLayerData(floatBuffer[uploadCnt * 2 + 1]);
 
 			// Upload polygon data to vertex buffer object
 			if (tile.polygonLayers.size > 0) {
 				mBufferMemoryUsage -= tile.polygonVBO.size;
 
-				GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, tile.polygonVBO.id);
+				glBindBuffer(GL_ARRAY_BUFFER, tile.polygonVBO.id);
-				GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, 0, null,
+				// glBufferData(GL_ARRAY_BUFFER, 0, null,
-						GLES20.GL_STATIC_DRAW);
+				// GL_DYNAMIC_DRAW);
 
 				if (useHalfFloat) {
 					tile.polygonVBO.size = tile.polygonLayers.size * SHORT_BYTES;
-					GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, tile.polygonVBO.size,
+					glBufferData(GL_ARRAY_BUFFER, tile.polygonVBO.size,
-							shortBuffer, GLES20.GL_STATIC_DRAW);
+							shortBuffer[uploadCnt * 2 + 1], GL_DYNAMIC_DRAW);
 				} else {
 					tile.polygonVBO.size = tile.polygonLayers.size * FLOAT_BYTES;
-					GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, tile.polygonVBO.size,
+					glBufferData(GL_ARRAY_BUFFER, tile.polygonVBO.size,
-							floatBuffer, GLES20.GL_STATIC_DRAW);
+							floatBuffer[uploadCnt * 2 + 1], GL_DYNAMIC_DRAW);
 				}
 				mBufferMemoryUsage += tile.polygonVBO.size;
 
@@ -1020,26 +1081,28 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		}
 		else {
 			if (useHalfFloat)
-				shortBuffer = tile.meshLayers.compileLayerData(shortBuffer);
+				shortBuffer[uploadCnt * 2 + 1] = tile.meshLayers
+						.compileLayerData(shortBuffer[uploadCnt * 2 + 1]);
 			else
-				floatBuffer = tile.meshLayers.compileLayerData(floatBuffer);
+				floatBuffer[uploadCnt * 2 + 1] = tile.meshLayers
+						.compileLayerData(floatBuffer[uploadCnt * 2 + 1]);
 
 			// Upload triangle data to vertex buffer object
 			if (tile.meshLayers.size > 0) {
 				mBufferMemoryUsage -= tile.polygonVBO.size;
 
-				GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, tile.polygonVBO.id);
+				glBindBuffer(GL_ARRAY_BUFFER, tile.polygonVBO.id);
-				GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, 0, null,
+				// glBufferData(GL_ARRAY_BUFFER, 0, null,
-						GLES20.GL_STATIC_DRAW);
+				// GL_DYNAMIC_DRAW);
 
 				if (useHalfFloat) {
 					tile.polygonVBO.size = tile.meshLayers.size * SHORT_BYTES;
-					GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, tile.polygonVBO.size,
+					glBufferData(GL_ARRAY_BUFFER, tile.polygonVBO.size,
-							shortBuffer, GLES20.GL_STATIC_DRAW);
+							shortBuffer[uploadCnt * 2 + 1], GL_DYNAMIC_DRAW);
 				} else {
 					tile.polygonVBO.size = tile.meshLayers.size * FLOAT_BYTES;
-					GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, tile.polygonVBO.size,
+					glBufferData(GL_ARRAY_BUFFER, tile.polygonVBO.size,
-							floatBuffer, GLES20.GL_STATIC_DRAW);
+							floatBuffer[uploadCnt * 2 + 1], GL_DYNAMIC_DRAW);
 				}
 				mBufferMemoryUsage += tile.polygonVBO.size;
 
@@ -1050,6 +1113,13 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		tile.newData = false;
 		tile.isDrawn = true;
 		tile.isLoading = false;
+		// double compile = SystemClock.uptimeMillis();
+		// glFinish();
+		// double now = SystemClock.uptimeMillis();
+		// Log.d(TAG, tile + " - upload took: " + (now - start) + " "
+		// + (mBufferMemoryUsage / 1024) + "kb");
+
+		uploadCnt++;
 
 		return true;
 	}
@@ -1066,10 +1136,9 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		if (timing)
 			start = SystemClock.uptimeMillis();
 
-		GLES20.glStencilMask(0xFF);
+		glStencilMask(0xFF);
-		GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
+		glDisable(GL_SCISSOR_TEST);
-		GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_STENCIL_BUFFER_BIT);
+		glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
-		// GLES20.glFlush();
 
 		// long endTime = SystemClock.uptimeMillis();
 		// long dt = endTime - startTime;
@@ -1100,22 +1169,21 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		GLMapTile[] tiles = curTiles.tiles;
 
 		if (mBufferMemoryUsage > LIMIT_BUFFERS) {
-			Log.d(TAG, "buffer object usage: " + mBufferMemoryUsage / (1024 * 1024)
+			Log.d(TAG, "buffer object usage: " + mBufferMemoryUsage / MB + "MB");
-					+ "MB");
 			synchronized (mVBOs) {
 				for (VertexBufferObject vbo : mVBOs) {
 					if (vbo.size == 0)
 						continue;
 					mBufferMemoryUsage -= vbo.size;
-					GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, vbo.id);
+					glBindBuffer(GL_ARRAY_BUFFER, vbo.id);
-					GLES20.glBufferData(GLES20.GL_ARRAY_BUFFER, 0, null,
+					glBufferData(GL_ARRAY_BUFFER, 0, null,
-							GLES20.GL_STATIC_DRAW);
+							GL_DYNAMIC_DRAW);
 					vbo.size = 0;
 
 				}
-				GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, 0);
+				glBindBuffer(GL_ARRAY_BUFFER, 0);
 			}
-			Log.d(TAG, " > " + mBufferMemoryUsage / (1024 * 1024) + "MB");
+			Log.d(TAG, " > " + mBufferMemoryUsage / MB + "MB");
 
 			if (CACHE_TILES > 50)
 				CACHE_TILES -= 50;
@@ -1124,6 +1192,7 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		}
 
 		uploadCnt = 0;
+		mLastBoundVBO = -1;
 
 		// check visible tiles, set tile clip scissors, upload new vertex data
 		for (int i = 0; i < tileCnt; i++) {
@@ -1134,11 +1203,6 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 			if (tile.newData) {
 				uploadTileData(tile);
-
-				if (timing)
-					Log.d(TAG, "buffer upload took: "
-							+ (SystemClock.uptimeMillis() - start));
-
 				continue;
 			}
 
@@ -1158,23 +1222,25 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 				}
 			}
 		}
-		// GLES20.glFinish();
+
-		GlUtils.checkGlError("upload");
+		if (GlUtils.checkGlOutOfMemory("upload: " + mBufferMemoryUsage)
+				&& LIMIT_BUFFERS > MB)
+			LIMIT_BUFFERS -= MB;
 
 		if (timing)
 			clear_time = (SystemClock.uptimeMillis() - start);
 
-		GLES20.glEnable(GLES20.GL_SCISSOR_TEST);
+		glEnable(GL_SCISSOR_TEST);
 
-		GLES20.glUseProgram(gPolygonProgram);
+		glUseProgram(gPolygonProgram);
-		// GLES20.glEnableVertexAttribArray(gPolygonVertexPositionHandle);
+		glEnableVertexAttribArray(gPolygonVertexPositionHandle);
 
 		if (!mTriangulate) {
-			GLES20.glDisable(GLES20.GL_BLEND);
+			glDisable(GL_BLEND);
 			// Draw Polygons
-			GLES20.glEnable(GLES20.GL_STENCIL_TEST);
+			glEnable(GL_STENCIL_TEST);
 
-			// GLES20.glEnableVertexAttribArray(gPolygonVertexPositionHandle);
+			// glEnableVertexAttribArray(gPolygonVertexPositionHandle);
 
 			for (int i = 0; i < tileCnt; i++) {
 				if (tiles[i].isVisible) {
@@ -1186,8 +1252,8 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 						drawProxyPolygons(tile);
 				}
 			}
-			GlUtils.checkGlError("polygons");
+			// GlUtils.checkGlError("polygons");
-			GLES20.glDisable(GLES20.GL_STENCIL_TEST);
+			glDisable(GL_STENCIL_TEST);
 		} else {
 			// Draw Triangles
 			for (int i = 0; i < tileCnt; i++) {
@@ -1200,23 +1266,22 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 						drawProxyTriangles(tile);
 				}
 			}
-			GlUtils.checkGlError("triangles");
+			// GlUtils.checkGlError("triangles");
 		}
-		// required on GalaxyII, Android 2.3.3
+		// required on GalaxyII, Android 2.3.3 (cant just VAA enable once...)
-		// GLES20.glDisableVertexAttribArray(gPolygonVertexPositionHandle);
+		glDisableVertexAttribArray(gPolygonVertexPositionHandle);
 
 		if (timing) {
-			GLES20.glFinish();
+			glFinish();
 			poly_time = (SystemClock.uptimeMillis() - start);
 		}
-		GLES20.glFlush();
 
 		// Draw lines
-		GLES20.glEnable(GLES20.GL_BLEND);
+		glEnable(GL_BLEND);
-		GLES20.glUseProgram(gLineProgram);
+		glUseProgram(gLineProgram);
 
-		// GLES20.glEnableVertexAttribArray(gLineVertexPositionHandle);
+		glEnableVertexAttribArray(gLineVertexPositionHandle);
-		// GLES20.glEnableVertexAttribArray(gLineTexturePositionHandle);
+		glEnableVertexAttribArray(gLineTexturePositionHandle);
 
 		for (int i = 0; i < tileCnt; i++) {
 			if (tiles[i].isVisible) {
@@ -1230,14 +1295,13 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		}
 
 		if (timing) {
-			GLES20.glFinish();
+			glFinish();
 			Log.d(TAG, "draw took " + (SystemClock.uptimeMillis() - start) + " "
 					+ clear_time + " " + poly_time);
 		}
-		// GLES20.glDisableVertexAttribArray(gLineVertexPositionHandle);
+		glDisableVertexAttribArray(gLineVertexPositionHandle);
-		// GLES20.glDisableVertexAttribArray(gLineTexturePositionHandle);
+		glDisableVertexAttribArray(gLineTexturePositionHandle);
-		GlUtils.checkGlError("lines");
+		// GlUtils.checkGlError("lines");
-		GLES20.glFinish();
 	}
 
 	private int[] mVboIds;
@@ -1261,7 +1325,7 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		mHeight = height;
 		mAspect = (float) height / width;
 
-		GLES20.glViewport(0, 0, width, height);
+		glViewport(0, 0, width, height);
 
 		int tiles = (mWidth / Tile.TILE_SIZE + 4) * (mHeight / Tile.TILE_SIZE + 4);
 		curTiles = new TilesData(tiles);
@@ -1271,7 +1335,7 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		// Set up vertex buffer objects
 		int numVBO = (CACHE_TILES + tiles) * 2;
 		mVboIds = new int[numVBO];
-		GLES20.glGenBuffers(numVBO, mVboIds, 0);
+		glGenBuffers(numVBO, mVboIds, 0);
 
 		for (int i = 0; i < numVBO; i++)
 			mVBOs.add(new VertexBufferObject(mVboIds[i]));
@@ -1302,21 +1366,25 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 			}
 		}
 
-		String ext = GLES20.glGetString(GLES20.GL_EXTENSIONS);
+		String ext = glGetString(GL_EXTENSIONS);
 
-		if (ext.indexOf("GL_OES_vertex_half_float") >= 0)
+		if (ext.indexOf("GL_OES_vertex_half_float") >= 0) {
 			useHalfFloat = true;
-
+			shortBuffer = new ShortBuffer[20];
+		}
+		else {
+			floatBuffer = new FloatBuffer[20];
+		}
 		Log.d(TAG, "Extensions: " + ext);
 
-		gLineMatrixHandle = GLES20.glGetUniformLocation(gLineProgram, "u_center");
+		gLineMatrixHandle = glGetUniformLocation(gLineProgram, "u_center");
-		gLineModeHandle = GLES20.glGetUniformLocation(gLineProgram, "u_mode");
+		gLineModeHandle = glGetUniformLocation(gLineProgram, "u_mode");
-		gLineColorHandle = GLES20.glGetUniformLocation(gLineProgram, "u_color");
+		gLineColorHandle = glGetUniformLocation(gLineProgram, "u_color");
 		gLineVertexPositionHandle = GLES20
 				.glGetAttribLocation(gLineProgram, "a_position");
-		gLineTexturePositionHandle = GLES20.glGetAttribLocation(gLineProgram, "a_st");
+		gLineTexturePositionHandle = glGetAttribLocation(gLineProgram, "a_st");
 		if (mSimpleLines)
-			gLineWidthHandle = GLES20.glGetUniformLocation(gLineProgram, "u_width");
+			gLineWidthHandle = glGetUniformLocation(gLineProgram, "u_width");
 
 		// Set up the program for rendering polygons
 		gPolygonProgram = GlUtils.createProgram(Shaders.gPolygonVertexShader,
@@ -1325,31 +1393,39 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 			Log.e(TAG, "Could not create polygon program.");
 			return;
 		}
-		gPolygonMatrixHandle = GLES20.glGetUniformLocation(gPolygonProgram, "u_center");
+		gPolygonMatrixHandle = glGetUniformLocation(gPolygonProgram, "u_center");
-		gPolygonVertexPositionHandle = GLES20.glGetAttribLocation(gPolygonProgram,
+		gPolygonVertexPositionHandle = glGetAttribLocation(gPolygonProgram,
 				"a_position");
-		gPolygonColorHandle = GLES20.glGetUniformLocation(gPolygonProgram, "u_color");
+		gPolygonColorHandle = glGetUniformLocation(gPolygonProgram, "u_color");
 
-		GLES20.glUseProgram(gPolygonProgram);
+		// glUseProgram(gPolygonProgram);
-		GLES20.glEnableVertexAttribArray(gPolygonVertexPositionHandle);
+		// glEnableVertexAttribArray(gPolygonVertexPositionHandle);
+		//
+		// glUseProgram(gLineProgram);
+		// glEnableVertexAttribArray(gLineVertexPositionHandle);
+		// glEnableVertexAttribArray(gLineTexturePositionHandle);
 
-		GLES20.glUseProgram(gLineProgram);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-		GLES20.glEnableVertexAttribArray(gLineVertexPositionHandle);
-		GLES20.glEnableVertexAttribArray(gLineTexturePositionHandle);
 
-		GLES20.glBlendFunc(GLES20.GL_SRC_ALPHA, GLES20.GL_ONE_MINUS_SRC_ALPHA);
+		glDisable(GL_DEPTH_TEST);
-
+		glDepthMask(false);
-		GLES20.glDisable(GLES20.GL_DEPTH_TEST);
+		glDisable(GL_DITHER);
-		GLES20.glDepthMask(false);
+		glClearColor(0.98f, 0.98f, 0.97f, 1.0f);
-		GLES20.glDisable(GLES20.GL_DITHER);
+		glClearStencil(0);
-		GLES20.glClearColor(0.98f, 0.98f, 0.97f, 1.0f);
-		GLES20.glClearStencil(0);
-
-		// GLES20.glFrontFace(GLES20.GL_CCW);
 	}
 
 	@Override
 	public boolean processedTile() {
 		return true;
 	}
+
+	public IMapGenerator getMapGenerator() {
+		return new MapGenerator();
+	}
+
+	@Override
+	public IMapGenerator createMapGenerator() {
+		return new MapGenerator();
+
+	}
 }

src/org/mapsforge/android/glrenderer/PolygonLayers.java

@@ -75,7 +75,7 @@ class PolygonLayers {
 			// Log.d("GLMap", "allocate buffer " + size);
 			fbuf = bbuf.asFloatBuffer();
 		} else {
-			fbuf.position(0);
+			fbuf.clear();
 		}
 
 		fbuf.put(mFillCoords, 0, 8);
@@ -95,7 +95,7 @@ class PolygonLayers {
 			l.pool = null;
 		}
 
-		fbuf.position(0);
+		fbuf.flip();
 
 		// not needed for drawing
 		layers = null;
@@ -121,7 +121,7 @@ class PolygonLayers {
 					ByteOrder.nativeOrder());
 			sbuf = bbuf.asShortBuffer();
 		} else {
-			sbuf.position(0);
+			sbuf.clear();
 		}
 
 		short[] data = new short[PoolItem.SIZE];
@@ -157,7 +157,7 @@ class PolygonLayers {
 			l.pool = null;
 		}
 
-		sbuf.position(0);
+		sbuf.flip();
 
 		// not needed for drawing
 		layers = null;

src/org/mapsforge/android/mapgenerator/IMapGenerator.java

@@ -14,9 +14,7 @@
  */
 package org.mapsforge.android.mapgenerator;
 
-import org.mapsforge.android.MapRenderer;
+import org.mapsforge.android.rendertheme.RenderTheme;
-import org.mapsforge.android.MapView;
-import org.mapsforge.core.GeoPoint;
 import org.mapsforge.database.IMapDatabase;
 
 /**
@@ -37,31 +35,13 @@ public interface IMapGenerator {
 	 */
 	boolean executeJob(MapGeneratorJob mapGeneratorJob);
 
-	/**
-	 * @return the start point of this MapGenerator (may be null).
-	 */
-	GeoPoint getStartPoint();
-
-	/**
-	 * @return the start zoom level of this MapGenerator (may be null).
-	 */
-	Byte getStartZoomLevel();
-
-	/**
-	 * @return the maximum zoom level that this MapGenerator supports.
-	 */
-	byte getZoomLevelMax();
-
-	/**
-	 * @param mapView
-	 *            the MapView
-	 * @return GLSurfaceView Renderer
-	 */
-	MapRenderer getMapRenderer(MapView mapView);
-
 	/**
 	 * @param mapDatabase
 	 *            the MapDatabase from which the map data will be read.
 	 */
 	void setMapDatabase(IMapDatabase mapDatabase);
+
+	IMapDatabase getMapDatabase();
+
+	void setRenderTheme(RenderTheme theme);
 }

src/org/mapsforge/android/mapgenerator/JobParameters.java

@@ -22,7 +22,7 @@ public class JobParameters {
 	/**
 	 * The render theme which should be used.
 	 */
-	public final JobTheme jobTheme;
+	public final Theme theme;
 
 	/**
 	 * The text scale factor which should applied to the render theme.
@@ -32,13 +32,13 @@ public class JobParameters {
 	private final int mHashCodeValue;
 
 	/**
-	 * @param jobTheme
+	 * @param theme
 	 *            render theme which should be used.
 	 * @param textScale
 	 *            the text scale factor which should applied to the render theme.
 	 */
-	public JobParameters(JobTheme jobTheme, float textScale) {
+	public JobParameters(Theme theme, float textScale) {
-		this.jobTheme = jobTheme;
+		this.theme = theme;
 		this.textScale = textScale;
 		mHashCodeValue = calculateHashCode();
 	}
@@ -52,11 +52,11 @@ public class JobParameters {
 			return false;
 		}
 		JobParameters other = (JobParameters) obj;
-		if (jobTheme == null) {
+		if (theme == null) {
-			if (other.jobTheme != null) {
+			if (other.theme != null) {
 				return false;
 			}
-		} else if (!jobTheme.equals(other.jobTheme)) {
+		} else if (!theme.equals(other.theme)) {
 			return false;
 		}
 		if (Float.floatToIntBits(textScale) != Float.floatToIntBits(other.textScale)) {
@@ -75,7 +75,7 @@ public class JobParameters {
 	 */
 	private int calculateHashCode() {
 		int result = 7;
-		result = 31 * result + ((jobTheme == null) ? 0 : jobTheme.hashCode());
+		result = 31 * result + ((theme == null) ? 0 : theme.hashCode());
 		result = 31 * result + Float.floatToIntBits(textScale);
 		return result;
 	}

src/org/mapsforge/android/mapgenerator/JobQueue.java

@@ -103,7 +103,8 @@ public class JobQueue {
 	 * Schedules all jobs in this queue.
 	 */
 	private void schedule() {
-		PriorityQueue<MapGeneratorJob> tempJobQueue = new PriorityQueue<MapGeneratorJob>(INITIAL_CAPACITY);
+		PriorityQueue<MapGeneratorJob> tempJobQueue = new PriorityQueue<MapGeneratorJob>(
+				INITIAL_CAPACITY);
 
 		TileScheduler.time = SystemClock.uptimeMillis();
 		TileScheduler.mapPosition = mMapView.getMapPosition().getMapPosition();

src/org/mapsforge/android/mapgenerator/MapDatabaseFactory.java

@@ -37,29 +37,40 @@ public final class MapDatabaseFactory {
 			return new org.mapsforge.database.postgis.MapDatabase();
 		}
 
-		MapDatabaseInternal mapDatabaseInternal = MapDatabaseInternal
+		MapDatabases mapDatabaseInternal = MapDatabases.valueOf(mapDatabaseName);
-				.valueOf(mapDatabaseName);
 
 		return MapDatabaseFactory.createMapDatabase(mapDatabaseInternal);
 	}
 
+	public static MapDatabases getMapDatabase(AttributeSet attributeSet) {
+		String mapDatabaseName = attributeSet.getAttributeValue(null,
+				MAP_DATABASE_ATTRIBUTE_NAME);
+		if (mapDatabaseName == null) {
+			return MapDatabases.POSTGIS_READER;
+		}
+
+		return MapDatabases.valueOf(mapDatabaseName);
+	}
+
 	/**
-	 * @param mapDatabaseInternal
+	 * @param mapDatabase
 	 *            the internal MapDatabase implementation.
 	 * @return a new MapGenerator instance.
 	 */
-	public static IMapDatabase createMapDatabase(MapDatabaseInternal mapDatabaseInternal) {
+	public static IMapDatabase createMapDatabase(MapDatabases mapDatabase) {
-		switch (mapDatabaseInternal) {
+		switch (mapDatabase) {
 			case MAP_READER:
 				return new org.mapsforge.database.mapfile.MapDatabase();
 			case JSON_READER:
 				return new org.mapsforge.database.json.MapDatabase();
 			case POSTGIS_READER:
 				return new org.mapsforge.database.postgis.MapDatabase();
+			case PBMAP_READER:
+				return new org.mapsforge.database.pbmap.MapDatabase();
 
 		}
 
-		throw new IllegalArgumentException("unknown enum value: " + mapDatabaseInternal);
+		throw new IllegalArgumentException("unknown enum value: " + mapDatabase);
 	}
 
 	private MapDatabaseFactory() {

src/org/mapsforge/android/mapgenerator/MapDatabases.java

@@ -17,7 +17,7 @@ package org.mapsforge.android.mapgenerator;
 /**
  * MapDatabase Implementations
  */
-public enum MapDatabaseInternal {
+public enum MapDatabases {
 	/**
 	 * ...
 	 */
@@ -33,4 +33,8 @@ public enum MapDatabaseInternal {
 	 */
 	POSTGIS_READER,
 
+	/**
+	 * ...
+	 */
+	PBMAP_READER,
 }

src/org/mapsforge/android/mapgenerator/MapGeneratorJob.java

@@ -37,7 +37,7 @@ public class MapGeneratorJob implements Comparable<MapGeneratorJob>, Serializabl
 	/**
 	 * The rendering parameters for this job.
 	 */
-	public final JobParameters jobParameters;
+	// public final JobParameters jobParameters;
 
 	/**
 	 * The tile which should be generated.
@@ -45,7 +45,6 @@ public class MapGeneratorJob implements Comparable<MapGeneratorJob>, Serializabl
 	public final MapTile tile;
 
 	private transient int mHashCodeValue;
-	private final IMapGenerator mMapGenerator;
 	private transient double mPriority;
 
 	/**
@@ -90,18 +89,15 @@ public class MapGeneratorJob implements Comparable<MapGeneratorJob>, Serializabl
 	 * 
 	 * @param _tile
 	 *            the tile which should be generated.
-	 * @param mapGenerator
-	 *            the MapGenerator for this job.
 	 * @param _jobParameters
 	 *            the rendering parameters for this job.
 	 * @param _debugSettings
 	 *            the debug settings for this job.
 	 */
-	public MapGeneratorJob(MapTile _tile, IMapGenerator mapGenerator,
+	public MapGeneratorJob(MapTile _tile, JobParameters _jobParameters,
-			JobParameters _jobParameters, DebugSettings _debugSettings) {
+			DebugSettings _debugSettings) {
 		tile = _tile;
-		mMapGenerator = mapGenerator;
+		// jobParameters = _jobParameters;
-		jobParameters = _jobParameters;
 		debugSettings = _debugSettings;
 		calculateTransientValues();
 	}
@@ -133,16 +129,14 @@ public class MapGeneratorJob implements Comparable<MapGeneratorJob>, Serializabl
 		} else if (!debugSettings.equals(other.debugSettings)) {
 			return false;
 		}
-		if (jobParameters == null) {
+		// if (jobParameters == null) {
-			if (other.jobParameters != null) {
+		// if (other.jobParameters != null) {
-				return false;
+		// return false;
-			}
+		// }
-		} else if (!jobParameters.equals(other.jobParameters)) {
+		// } else if (!jobParameters.equals(other.jobParameters)) {
-			return false;
+		// return false;
-		}
+		// }
-		if (mMapGenerator != other.mMapGenerator) {
+
-			return false;
-		}
 		if (tile == null) {
 			if (other.tile != null) {
 				return false;
@@ -164,8 +158,7 @@ public class MapGeneratorJob implements Comparable<MapGeneratorJob>, Serializabl
 	private int calculateHashCode() {
 		int result = 1;
 		result = 31 * result + ((debugSettings == null) ? 0 : debugSettings.hashCode());
-		result = 31 * result + ((jobParameters == null) ? 0 : jobParameters.hashCode());
+		// result = 31 * result + ((jobParameters == null) ? 0 : jobParameters.hashCode());
-		result = 31 * result + ((mMapGenerator == null) ? 0 : mMapGenerator.hashCode());
 		result = 31 * result + ((tile == null) ? 0 : tile.hashCode());
 		return result;
 	}
@@ -177,7 +170,8 @@ public class MapGeneratorJob implements Comparable<MapGeneratorJob>, Serializabl
 		mHashCodeValue = calculateHashCode();
 	}
 
-	private void readObject(ObjectInputStream objectInputStream) throws IOException, ClassNotFoundException {
+	private void readObject(ObjectInputStream objectInputStream) throws IOException,
+			ClassNotFoundException {
 		objectInputStream.defaultReadObject();
 		calculateTransientValues();
 	}

src/org/mapsforge/android/mapgenerator/MapRendererFactory.java

@@ -14,46 +14,66 @@
  */
 package org.mapsforge.android.mapgenerator;
 
+import org.mapsforge.android.IMapRenderer;
+import org.mapsforge.android.MapView;
+
 import android.util.AttributeSet;
 
 /**
  * A factory for the internal MapGenerator implementations.
  */
-public final class MapGeneratorFactory {
+public final class MapRendererFactory {
 	private static final String MAP_GENERATOR_ATTRIBUTE_NAME = "mapGenerator";
 
 	/**
+	 * @param mapView
+	 *            ...
 	 * @param attributeSet
 	 *            A collection of attributes which includes the desired MapGenerator.
 	 * @return a new MapGenerator instance.
 	 */
-	public static IMapGenerator createMapGenerator(AttributeSet attributeSet) {
+	public static IMapRenderer createMapRenderer(MapView mapView,
-		String mapGeneratorName = attributeSet.getAttributeValue(null, MAP_GENERATOR_ATTRIBUTE_NAME);
+			AttributeSet attributeSet) {
+		String mapGeneratorName = attributeSet.getAttributeValue(null,
+				MAP_GENERATOR_ATTRIBUTE_NAME);
 		if (mapGeneratorName == null) {
-			return new org.mapsforge.android.glrenderer.DatabaseRenderer();
+			return new org.mapsforge.android.glrenderer.MapRenderer(mapView);
 		}
 
-		MapGeneratorInternal mapGeneratorInternal = MapGeneratorInternal.valueOf(mapGeneratorName);
+		MapRenderers mapGeneratorInternal = MapRenderers.valueOf(mapGeneratorName);
-		return MapGeneratorFactory.createMapGenerator(mapGeneratorInternal);
+		return MapRendererFactory.createMapRenderer(mapView, mapGeneratorInternal);
+	}
+
+	public static MapRenderers getMapGenerator(AttributeSet attributeSet) {
+		String mapGeneratorName = attributeSet.getAttributeValue(null,
+				MAP_GENERATOR_ATTRIBUTE_NAME);
+		if (mapGeneratorName == null) {
+			return MapRenderers.GL_RENDERER;
+		}
+
+		return MapRenderers.valueOf(mapGeneratorName);
 	}
 
 	/**
+	 * @param mapView
+	 *            ...
 	 * @param mapGeneratorInternal
 	 *            the internal MapGenerator implementation.
 	 * @return a new MapGenerator instance.
 	 */
-	public static IMapGenerator createMapGenerator(MapGeneratorInternal mapGeneratorInternal) {
+	public static IMapRenderer createMapRenderer(MapView mapView,
+			MapRenderers mapGeneratorInternal) {
 		switch (mapGeneratorInternal) {
 			case SW_RENDERER:
-				return new org.mapsforge.android.swrenderer.DatabaseRenderer();
+				return new org.mapsforge.android.swrenderer.MapRenderer(mapView);
 			case GL_RENDERER:
-				return new org.mapsforge.android.glrenderer.DatabaseRenderer();
+				return new org.mapsforge.android.glrenderer.MapRenderer(mapView);
 		}
 
 		throw new IllegalArgumentException("unknown enum value: " + mapGeneratorInternal);
 	}
 
-	private MapGeneratorFactory() {
+	private MapRendererFactory() {
 		throw new IllegalStateException();
 	}
 }

src/org/mapsforge/android/mapgenerator/MapRenderers.java

@@ -17,7 +17,7 @@ package org.mapsforge.android.mapgenerator;
 /**
  * Enumeration of all internal MapGenerator implementations.
  */
-public enum MapGeneratorInternal {
+public enum MapRenderers {
 	/**
 	 * texture renderer.
 	 */

src/org/mapsforge/android/mapgenerator/MapWorker.java

@@ -14,7 +14,7 @@
  */
 package org.mapsforge.android.mapgenerator;
 
-import org.mapsforge.android.MapRenderer;
+import org.mapsforge.android.IMapRenderer;
 import org.mapsforge.android.MapView;
 import org.mapsforge.android.utils.PausableThread;
 
@@ -23,35 +23,33 @@ import org.mapsforge.android.utils.PausableThread;
  * thread.
  */
 public class MapWorker extends PausableThread {
-	private static final String THREAD_NAME = "MapWorker";
+	private final String THREAD_NAME;
-
 	private final JobQueue mJobQueue;
-	private IMapGenerator mMapGenerator;
+	private final IMapGenerator mMapGenerator;
-	private MapRenderer mMapRenderer;
+	private final IMapRenderer mMapRenderer;
 
 	/**
+	 * @param id
+	 *            thread id
 	 * @param mapView
 	 *            the MapView for which this MapWorker generates map tiles.
+	 * @param mapGenerator
+	 *            ...
+	 * @param mapRenderer
+	 *            ...
 	 */
-	public MapWorker(MapView mapView) {
+	public MapWorker(int id, MapView mapView, IMapGenerator mapGenerator,
+			IMapRenderer mapRenderer) {
 		super();
 		mJobQueue = mapView.getJobQueue();
-	}
-
-	/**
-	 * @param mapGenerator
-	 *            the MapGenerator which this MapWorker should use.
-	 */
-	public void setMapGenerator(IMapGenerator mapGenerator) {
 		mMapGenerator = mapGenerator;
+		mMapRenderer = mapRenderer;
+
+		THREAD_NAME = "MapWorker" + id;
 	}
 
-	/**
+	public IMapGenerator getMapGenerator() {
-	 * @param mapRenderer
+		return mMapGenerator;
-	 *            the MapRenderer
-	 */
-	public void setMapRenderer(MapRenderer mapRenderer) {
-		mMapRenderer = mapRenderer;
 	}
 
 	@Override
@@ -65,6 +63,7 @@ public class MapWorker extends PausableThread {
 
 		if (mMapGenerator == null || mapGeneratorJob == null)
 			return;
+		// Log.d(THREAD_NAME, "processing: " + mapGeneratorJob.tile);
 
 		boolean success = mMapGenerator.executeJob(mapGeneratorJob);
 
@@ -80,7 +79,8 @@ public class MapWorker extends PausableThread {
 
 	@Override
 	protected int getThreadPriority() {
-		return (Thread.NORM_PRIORITY + Thread.MIN_PRIORITY) / 2;
+		// return (Thread.NORM_PRIORITY + Thread.MIN_PRIORITY) / 2;
+		return Thread.MIN_PRIORITY;
 	}
 
 	@Override

src/org/mapsforge/android/mapgenerator/Theme.java

@@ -21,7 +21,7 @@ import java.io.Serializable;
 /**
  * A JobTheme defines the render theme which is used for a {@link MapGeneratorJob}.
  */
-public interface JobTheme extends Serializable {
+public interface Theme extends Serializable {
 	/**
 	 * @return an InputStream to read the render theme data from.
 	 * @throws FileNotFoundException

src/org/mapsforge/android/rendertheme/ExternalRenderTheme.java

@@ -21,12 +21,12 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.ObjectInputStream;
 
-import org.mapsforge.android.mapgenerator.JobTheme;
+import org.mapsforge.android.mapgenerator.Theme;
 
 /**
  * An ExternalRenderTheme allows for customizing the rendering style of the map via an XML file.
  */
-public class ExternalRenderTheme implements JobTheme {
+public class ExternalRenderTheme implements Theme {
 	private static final long serialVersionUID = 1L;
 
 	private final long mFileModificationDate;

src/org/mapsforge/android/rendertheme/InternalRenderTheme.java

@@ -16,12 +16,12 @@ package org.mapsforge.android.rendertheme;
 
 import java.io.InputStream;
 
-import org.mapsforge.android.mapgenerator.JobTheme;
+import org.mapsforge.android.mapgenerator.Theme;
 
 /**
  * Enumeration of all internal rendering themes.
  */
-public enum InternalRenderTheme implements JobTheme {
+public enum InternalRenderTheme implements Theme {
 	/**
 	 * A rendering theme similar to the OpenStreetMap Osmarender style.
 	 * 
@@ -37,6 +37,9 @@ public enum InternalRenderTheme implements JobTheme {
 
 	@Override
 	public InputStream getRenderThemeAsStream() {
-		return Thread.currentThread().getClass().getResourceAsStream(mPath);
+		// getResourceAsStream(mPath);
+		return InternalRenderTheme.class.getResourceAsStream(mPath);
+		// return Thread.currentThread().getClass().getResourceAsStream(mPath);
+
 	}
 }

src/org/mapsforge/android/rendertheme/RenderTheme.java

@@ -87,10 +87,6 @@ public class RenderTheme {
 	private final LRUCache<MatchingCacheKey, RenderInstruction[]> mMatchingCacheWay;
 	private final LRUCache<MatchingCacheKey, RenderInstruction[]> mMatchingCacheArea;
 
-	// private List<RenderInstruction> mMatchingListWay;
-	// private List<RenderInstruction> mMatchingListArea;
-	// private List<RenderInstruction> mMatchingListNode;
-
 	RenderTheme(int mapBackground, float baseStrokeWidth, float baseTextSize) {
 		mMapBackground = mapBackground;
 		mBaseStrokeWidth = baseStrokeWidth;
@@ -198,7 +194,7 @@ public class RenderTheme {
 		}
 	}
 
-	private RenderInstruction[] mRenderInstructions = null;
+	// private RenderInstruction[] mRenderInstructions = null;
 
 	/**
 	 * Matches a way with the given parameters against this RenderTheme.
@@ -213,23 +209,26 @@ public class RenderTheme {
 	 *            way is Closed
 	 * @param changed
 	 *            ...
+	 * @return currently processed render instructions
 	 */
-	public void matchWay(IRenderCallback renderCallback, Tag[] tags, byte zoomLevel,
+	public synchronized RenderInstruction[] matchWay(IRenderCallback renderCallback,
+			Tag[] tags,
+			byte zoomLevel,
 			boolean closed, boolean changed) {
 		RenderInstruction[] renderInstructions = null;
 
 		LRUCache<MatchingCacheKey, RenderInstruction[]> matchingCache;
 		MatchingCacheKey matchingCacheKey;
 
-		if (!changed) {
+		// if (!changed) {
-			renderInstructions = mRenderInstructions;
+		// renderInstructions = mRenderInstructions;
-
+		//
-			if (renderInstructions != null) {
+		// if (renderInstructions != null) {
-				for (int i = 0, n = renderInstructions.length; i < n; i++)
+		// for (int i = 0, n = renderInstructions.length; i < n; i++)
-					renderInstructions[i].renderWay(renderCallback, tags);
+		// renderInstructions[i].renderWay(renderCallback, tags);
-			}
+		// }
-			return;
+		// return;
-		}
+		// }
 
 		if (closed) {
 			matchingCache = mMatchingCacheArea;
@@ -267,90 +266,8 @@ public class RenderTheme {
 			matchingCache.put(matchingCacheKey, renderInstructions);
 		}
 
-		mRenderInstructions = renderInstructions;
+		// mRenderInstructions = renderInstructions;
-
+		return renderInstructions;
-		// if (matchingList != null) {
-		// for (int i = 0, n = matchingList.size(); i < n; ++i) {
-		// matchingList.get(i).renderWay(renderCallback, tags);
-		// }
-		// }
-		// return renderInstructions;
-
-		// if (closed) {
-		// mMatchingListArea = matchingList;
-		// } else {
-		// mMatchingListWay = matchingList;
-		// }
-
-		// if (mCompareKey.set(tags, zoomLevel, closed)) {
-		// // Log.d("mapsforge", "SAME AS BAFORE!!!" + tags);
-		// for (int i = 0, n = mInstructionList.length; i < n; ++i) {
-		// mInstructionList[i].renderWay(renderCallback, tags);
-		// }
-		// return;
-		// }
-		//
-		// SparseArray<RenderInstruction[]> matchingList = mMatchingCache.get(mCompareKey);
-		//
-		// if (matchingList != null) {
-		// mInstructionList = matchingList.get(zoomLevel);
-		// if (mInstructionList != null) {
-		// // cache hit
-		// // Log.d("mapsforge", "CCACHE HIT !!!" + tags);
-		// for (int i = 0, n = mInstructionList.length; i < n; ++i) {
-		// mInstructionList[i].renderWay(renderCallback, tags);
-		// }
-		//
-		// return;
-		// }
-		// }
-		// // Log.d("mapsforge", "CACHE MISS !!!" + tags);
-		// // cache miss
-		// ArrayList<RenderInstruction> instructionList = new ArrayList<RenderInstruction>();
-		//
-		// for (int i = 0, n = mRulesList.size(); i < n; ++i) {
-		// mRulesList.get(i).matchWay(renderCallback, mCompareKey.getTags(), zoomLevel, closed, instructionList);
-		// }
-		//
-		// boolean found = false;
-		// int size = instructionList.size();
-		//
-		// if (matchingList == null) {
-		// matchingList = new SparseArray<RenderInstruction[]>(25);
-		// MatchingCacheKey matchingCacheKey = new MatchingCacheKey(mCompareKey);
-		// mMatchingCache.put(matchingCacheKey, matchingList);
-		// } else {
-		// // check if another zoomLevel uses the same instructionList
-		// for (int i = 0, n = matchingList.size(); i < n; i++) {
-		// int key = matchingList.keyAt(i);
-		//
-		// RenderInstruction[] list2 = matchingList.get(key);
-		// if (list2.length != size)
-		// continue;
-		//
-		// int j = 0;
-		// while (j < size && (list2[j] == instructionList.get(j)))
-		// j++;
-		//
-		// if (j == size) {
-		// instructionList.clear();
-		// mInstructionList = list2;
-		// found = true;
-		// break;
-		// }
-		// }
-		// }
-		//
-		// if (!found) {
-		// mInstructionList = new RenderInstruction[size];
-		// for (int i = 0; i < size; i++)
-		// mInstructionList[i] = instructionList.get(i);
-		// }
-		//
-		// for (int i = 0, n = mInstructionList.length; i < n; ++i)
-		// mInstructionList[i].renderWay(renderCallback, tags);
-		//
-		// matchingList.put(zoomLevel, mInstructionList);
 	}
 
 	void addRule(Rule rule) {

src/org/mapsforge/android/swrenderer/MapGenerator.java

@@ -14,77 +14,39 @@
  */
 package org.mapsforge.android.swrenderer;
 
-import java.io.IOException;
-import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 
-import javax.xml.parsers.ParserConfigurationException;
-
-import org.mapsforge.android.MapView;
 import org.mapsforge.android.mapgenerator.IMapGenerator;
-import org.mapsforge.android.mapgenerator.JobTheme;
 import org.mapsforge.android.mapgenerator.MapGeneratorJob;
+import org.mapsforge.android.mapgenerator.Theme;
 import org.mapsforge.android.rendertheme.IRenderCallback;
 import org.mapsforge.android.rendertheme.RenderTheme;
-import org.mapsforge.android.rendertheme.RenderThemeHandler;
 import org.mapsforge.android.rendertheme.renderinstruction.Area;
 import org.mapsforge.android.rendertheme.renderinstruction.Line;
-import org.mapsforge.core.GeoPoint;
 import org.mapsforge.core.Tag;
 import org.mapsforge.core.Tile;
 import org.mapsforge.database.IMapDatabase;
 import org.mapsforge.database.IMapDatabaseCallback;
-import org.mapsforge.database.MapFileInfo;
 import org.mapsforge.database.mapfile.MapDatabase;
-import org.xml.sax.SAXException;
 
 import android.graphics.Bitmap;
 import android.graphics.Color;
 import android.graphics.Paint;
 import android.util.FloatMath;
-import android.util.Log;
 
 /**
  * A DatabaseRenderer renders map tiles by reading from a {@link MapDatabase}.
  */
-public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
+public class MapGenerator implements IMapGenerator, IRenderCallback,
 		IMapDatabaseCallback {
-	private static String TAG = DatabaseRenderer.class.getName();
+	// private static String TAG = MapGenerator.class.getName();
-	private static final Byte DEFAULT_START_ZOOM_LEVEL = Byte.valueOf((byte) 12);
 	private static final byte LAYERS = 11;
 	private static final Paint PAINT_WATER_TILE_HIGHTLIGHT = new Paint(
 			Paint.ANTI_ALIAS_FLAG);
 	private static final double STROKE_INCREASE = 1.5;
 	private static final byte STROKE_MIN_ZOOM_LEVEL = 12;
 
-	private static final byte ZOOM_MAX = 22;
-
-	// private static MapRenderer mMapRenderer;
-
-	private static RenderTheme getRenderTheme(JobTheme jobTheme) {
-		InputStream inputStream = null;
-		try {
-			inputStream = jobTheme.getRenderThemeAsStream();
-			return RenderThemeHandler.getRenderTheme(inputStream);
-		} catch (ParserConfigurationException e) {
-			Log.e(TAG, e.getMessage());
-		} catch (SAXException e) {
-			Log.e(TAG, e.getMessage());
-		} catch (IOException e) {
-			Log.e(TAG, e.getMessage());
-		} finally {
-			try {
-				if (inputStream != null) {
-					inputStream.close();
-				}
-			} catch (IOException e) {
-				Log.e(TAG, e.getMessage());
-			}
-		}
-		return null;
-	}
-
 	private static byte getValidLayer(byte layer) {
 		if (layer < 0) {
 			return 0;
@@ -103,7 +65,7 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	private List<PointTextContainer> mNodes;
 	private float mPoiX;
 	private float mPoiY;
-	private JobTheme mPreviousJobTheme;
+	private Theme mPreviousJobTheme;
 	private float mPreviousTextScale;
 	private byte mPreviousZoomLevel;
 	private static RenderTheme renderTheme;
@@ -138,7 +100,7 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	/**
 	 * Constructs a new DatabaseRenderer.
 	 */
-	public DatabaseRenderer() {
+	public MapGenerator() {
 		mCanvasRasterer = new CanvasRasterer();
 		mLabelPlacement = new LabelPlacement();
 
@@ -161,8 +123,8 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	@Override
 	public void cleanup() {
 		mTileBitmap.recycle();
-		if (DatabaseRenderer.renderTheme != null) {
+		if (MapGenerator.renderTheme != null) {
-			DatabaseRenderer.renderTheme.destroy();
+			MapGenerator.renderTheme.destroy();
 		}
 	}
 
@@ -189,30 +151,30 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 		// mTileHeight = mLat1 - mLat2;
 		mScale = mapGeneratorJob.getScale();
 
-		JobTheme jobTheme = mapGeneratorJob.jobParameters.jobTheme;
+		// Theme theme = mapGeneratorJob.jobParameters.theme;
-		if (!jobTheme.equals(mPreviousJobTheme)) {
+		// if (!theme.equals(mPreviousJobTheme)) {
-			if (DatabaseRenderer.renderTheme == null)
+		// // if (MapGenerator.renderTheme == null)
-				DatabaseRenderer.renderTheme = getRenderTheme(jobTheme);
+		// // MapGenerator.renderTheme = getRenderTheme(theme);
-			if (DatabaseRenderer.renderTheme == null) {
+		// // if (MapGenerator.renderTheme == null) {
-				mPreviousJobTheme = null;
+		// // mPreviousJobTheme = null;
-				return false;
+		// // return false;
-			}
+		// // }
-			createWayLists();
+		// createWayLists();
-			mPreviousJobTheme = jobTheme;
+		// mPreviousJobTheme = theme;
-			mPreviousZoomLevel = Byte.MIN_VALUE;
+		// mPreviousZoomLevel = Byte.MIN_VALUE;
-		}
+		// }
-
+		//
-		byte zoomLevel = mCurrentTile.zoomLevel;
+		// byte zoomLevel = mCurrentTile.zoomLevel;
-		if (zoomLevel != mPreviousZoomLevel) {
+		// if (zoomLevel != mPreviousZoomLevel) {
-			setScaleStrokeWidth(zoomLevel);
+		// setScaleStrokeWidth(zoomLevel);
-			mPreviousZoomLevel = zoomLevel;
+		// mPreviousZoomLevel = zoomLevel;
-		}
+		// }
-
+		//
-		float textScale = mapGeneratorJob.jobParameters.textScale;
+		// float textScale = mapGeneratorJob.jobParameters.textScale;
-		if (textScale != mPreviousTextScale) {
+		// if (textScale != mPreviousTextScale) {
-			DatabaseRenderer.renderTheme.scaleTextSize(textScale);
+		// MapGenerator.renderTheme.scaleTextSize(textScale);
-			mPreviousTextScale = textScale;
+		// mPreviousTextScale = textScale;
-		}
+		// }
 
 		if (mMapDatabase != null) {
 			mMapDatabase.executeQuery(mCurrentTile, this);
@@ -230,7 +192,7 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 		// FIXME mCoords = mMapDatabase.getCoordinates();
 
 		mCanvasRasterer.setCanvasBitmap(mTileBitmap, mScale);
-		mCanvasRasterer.fill(DatabaseRenderer.renderTheme.getMapBackground());
+		mCanvasRasterer.fill(MapGenerator.renderTheme.getMapBackground());
 		mCanvasRasterer.drawWays(mCoords, mWays);
 		mCanvasRasterer.drawSymbols(mWaySymbols);
 		mCanvasRasterer.drawSymbols(mPointSymbols);
@@ -255,37 +217,6 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 		return true;
 	}
 
-	@Override
-	public GeoPoint getStartPoint() {
-		if (mMapDatabase != null && mMapDatabase.hasOpenFile()) {
-			MapFileInfo mapFileInfo = mMapDatabase.getMapFileInfo();
-			if (mapFileInfo.startPosition != null) {
-				return mapFileInfo.startPosition;
-			} else if (mapFileInfo.mapCenter != null) {
-				return mapFileInfo.mapCenter;
-			}
-		}
-
-		return null;
-	}
-
-	@Override
-	public Byte getStartZoomLevel() {
-		if (mMapDatabase != null && mMapDatabase.hasOpenFile()) {
-			MapFileInfo mapFileInfo = mMapDatabase.getMapFileInfo();
-			if (mapFileInfo.startZoomLevel != null) {
-				return mapFileInfo.startZoomLevel;
-			}
-		}
-
-		return DEFAULT_START_ZOOM_LEVEL;
-	}
-
-	@Override
-	public byte getZoomLevelMax() {
-		return ZOOM_MAX;
-	}
-
 	@Override
 	public void renderAreaCaption(String textKey, float verticalOffset, Paint paint,
 			Paint stroke) {
@@ -314,7 +245,7 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 		mDrawingLayer = mWays[getValidLayer(layer)];
 		mPoiX = scaleLongitude(longitude);
 		mPoiY = scaleLatitude(latitude);
-		DatabaseRenderer.renderTheme.matchNode(this, tags, mCurrentTile.zoomLevel);
+		MapGenerator.renderTheme.matchNode(this, tags, mCurrentTile.zoomLevel);
 	}
 
 	@Override
@@ -539,7 +470,7 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	}
 
 	private void createWayLists() {
-		int levels = DatabaseRenderer.renderTheme.getLevels();
+		int levels = MapGenerator.renderTheme.getLevels();
 		for (byte i = LAYERS - 1; i >= 0; --i) {
 			mWays[i] = new LayerContainer(levels);
 		}
@@ -581,12 +512,18 @@ public class DatabaseRenderer implements IMapGenerator, IRenderCallback,
 	 */
 	private static void setScaleStrokeWidth(byte zoomLevel) {
 		int zoomLevelDiff = Math.max(zoomLevel - STROKE_MIN_ZOOM_LEVEL, 0);
-		DatabaseRenderer.renderTheme.scaleStrokeWidth((float) Math.pow(STROKE_INCREASE,
+		MapGenerator.renderTheme.scaleStrokeWidth((float) Math.pow(STROKE_INCREASE,
 				zoomLevelDiff));
 	}
 
 	@Override
-	public MapRenderer getMapRenderer(MapView mapView) {
+	public IMapDatabase getMapDatabase() {
-		return new MapRenderer(mapView);
+		return mMapDatabase;
+	}
+
+	@Override
+	public void setRenderTheme(RenderTheme theme) {
+		// TODO Auto-generated method stub
+
 	}
 }

src/org/mapsforge/android/swrenderer/MapRenderer.java

@@ -28,10 +28,9 @@ import javax.microedition.khronos.opengles.GL10;
 
 import org.mapsforge.android.DebugSettings;
 import org.mapsforge.android.MapView;
-import org.mapsforge.android.mapgenerator.JobParameters;
 import org.mapsforge.android.mapgenerator.IMapGenerator;
+import org.mapsforge.android.mapgenerator.JobParameters;
 import org.mapsforge.android.mapgenerator.MapGeneratorJob;
-import org.mapsforge.android.mapgenerator.MapWorker;
 import org.mapsforge.android.mapgenerator.TileCacheKey;
 import org.mapsforge.android.mapgenerator.TileDistanceSort;
 import org.mapsforge.android.utils.GlUtils;
@@ -46,7 +45,7 @@ import android.opengl.Matrix;
 /**
  * 
  */
-public class MapRenderer implements org.mapsforge.android.MapRenderer {
+public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 	// private static String TAG = "MapRenderer";
 
 	private static final int FLOAT_SIZE_BYTES = 4;
@@ -72,7 +71,6 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 	private ArrayList<MapGeneratorJob> mJobList;
 
 	ArrayList<Integer> mTextures;
-	MapWorker mMapWorker;
 	MapView mMapView;
 
 	GLMapTile[] currentTiles;
@@ -97,7 +95,6 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 	 */
 	public MapRenderer(MapView mapView) {
 		mMapView = mapView;
-		mMapWorker = mapView.getMapWorker();
 		mDebugSettings = mapView.getDebugSettings();
 		mMapScale = 1;
 
@@ -133,7 +130,8 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 			if (diff != 0)
 			{
 				float z = (diff > 0) ? (1 << diff) : 1.0f / (1 << -diff);
-				t.distance = (long) (Math.abs((t.tileX) * z - x) + Math.abs((t.tileY) * z - y));
+				t.distance = (long) (Math.abs((t.tileX) * z - x) + Math.abs((t.tileY) * z
+						- y));
 				t.distance *= 2 * diff * diff;
 			} else {
 				t.distance = (Math.abs(t.tileX - x) + Math.abs(t.tileY - y));
@@ -160,7 +158,7 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 			}
 			if (t.hasTexture()) {
 				synchronized (mTextures) {
-					mTextures.add(new Integer(t.getTexture()));
+					mTextures.add(Integer.valueOf(t.getTexture()));
 				}
 			}
 		}
@@ -184,7 +182,8 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 		mJobList.clear();
 
-		IMapGenerator mapGenerator = mMapView.getMapGenerator();
+		// IMapGenerator mapGenerator = mMapView.getMapGenerator();
+
 		int tiles = 0;
 		for (long tileY = tileTop - 1; tileY <= tileBottom + 1; tileY++) {
 			for (long tileX = tileLeft - 1; tileX <= tileRight + 1; tileX++) {
@@ -216,13 +215,14 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 				if (!tile.isDrawn || (tile.getScale() != scale)) {
 					tile.isLoading = true;
 					// approximation for TileScheduler
-					if (tileY < tileTop || tileY > tileBottom || tileX < tileLeft || tileX > tileRight)
+					if (tileY < tileTop || tileY > tileBottom || tileX < tileLeft
+							|| tileX > tileRight)
 						tile.isVisible = false;
 					else
 						tile.isVisible = true;
 
-					MapGeneratorJob job = new MapGeneratorJob(tile, mapGenerator,
+					MapGeneratorJob job = new MapGeneratorJob(tile, mJobParameter,
-							mJobParameter, mDebugSettings);
+							mDebugSettings);
 					job.setScale(scale);
 					mJobList.add(job);
 				}
@@ -243,10 +243,7 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 		}
 
 		if (mJobList.size() > 0) {
-			mMapView.getJobQueue().setJobs(mJobList);
+			mMapView.addJobs(mJobList);
-			synchronized (mMapWorker) {
-				mMapWorker.notify();
-			}
 		}
 
 		return true;
@@ -262,10 +259,12 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 		mMapPosition = mMapView.getMapPosition().getMapPosition();
 
-		long x = (long) MercatorProjection.longitudeToPixelX(mMapPosition.geoPoint.getLongitude(),
+		long x = (long) MercatorProjection.longitudeToPixelX(
+				mMapPosition.geoPoint.getLongitude(),
 				mMapPosition.zoomLevel);
 		long y = (long) MercatorProjection
-				.latitudeToPixelY(mMapPosition.geoPoint.getLatitude(), mMapPosition.zoomLevel);
+				.latitudeToPixelY(mMapPosition.geoPoint.getLatitude(),
+						mMapPosition.zoomLevel);
 
 		long tileX = MercatorProjection.pixelXToTileX(x, mMapPosition.zoomLevel);
 		long tileY = MercatorProjection.pixelYToTileY(y, mMapPosition.zoomLevel);
@@ -345,7 +344,8 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 				z = 1.0f / (1 << -diff);
 			}
 			drawX = MercatorProjection
-					.longitudeToPixelX(mMapPosition.geoPoint.getLongitude(), tile.zoomLevel);
+					.longitudeToPixelX(mMapPosition.geoPoint.getLongitude(),
+							tile.zoomLevel);
 			drawY = MercatorProjection
 					.latitudeToPixelY(mMapPosition.geoPoint.getLatitude(), tile.zoomLevel);
 
@@ -377,7 +377,8 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 		Matrix.setIdentityM(mMatrix, 0);
 		// map tile GL coordinates to screen coordinates
-		Matrix.scaleM(mMatrix, 0, 2.0f * (tileSize * z) / mWidth, 2.0f * (tileSize * z) / mHeight, 1);
+		Matrix.scaleM(mMatrix, 0, 2.0f * (tileSize * z) / mWidth, 2.0f * (tileSize * z)
+				/ mHeight, 1);
 
 		// scale tile
 		Matrix.scaleM(mMatrix, 0, mapScale / z, mapScale / z, 1);
@@ -396,7 +397,7 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 	@Override
 	public void onDrawFrame(GL10 glUnused) {
-		boolean loadedTexture = false;
+		// boolean loadedTexture = false;
 		GLES20.glDisable(GLES20.GL_SCISSOR_TEST);
 		GLES20.glClearColor(0.95f, 0.95f, 0.94f, 1.0f);
 		// GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
@@ -437,14 +438,16 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 				if (tile.getTexture() >= 0) {
 					// reuse tile texture
 					GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, tile.getTexture());
-					GLUtils.texSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0, mMapGeneratorJob.getBitmap());
+					GLUtils.texSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0,
+							mMapGeneratorJob.getBitmap());
 				} else if (mTextures.size() > 0) {
 					// reuse texture from previous tiles
 					Integer texture;
 					texture = mTextures.remove(mTextures.size() - 1);
 
 					GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texture.intValue());
-					GLUtils.texSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0, mMapGeneratorJob.getBitmap());
+					GLUtils.texSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0,
+							mMapGeneratorJob.getBitmap());
 					tile.setTexture(texture.intValue());
 				} else {
 					// create texture
@@ -457,7 +460,7 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 
 				mMapGeneratorJob = null;
 				processedTile = true;
-				loadedTexture = true;
+				// loadedTexture = true;
 			}
 			int tileSize = (int) (Tile.TILE_SIZE * mMapScale);
 			int hWidth = mWidth >> 1;
@@ -491,11 +494,12 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 				}
 			}
 		}
-		if (loadedTexture) {
+		// FIXME
-			synchronized (mMapWorker) {
+		// if (loadedTexture) {
-				mMapWorker.notify();
+		// synchronized (mMapWorker) {
-			}
+		// mMapWorker.notify();
-		}
+		// }
+		// }
 	}
 
 	@Override
@@ -579,65 +583,9 @@ public class MapRenderer implements org.mapsforge.android.MapRenderer {
 	public boolean processedTile() {
 		return processedTile;
 	}
+
+	@Override
+	public IMapGenerator createMapGenerator() {
+		return new MapGenerator();
+	}
 }
-
-// private void limitCache(long top, long bottom, long left, long right, byte zoom, int remove) {
-// int cnt = 0;
-// TileCacheKey[] keys = new TileCacheKey[remove];
-//
-// for (Entry<TileCacheKey, GLMapTile> e : mTiles.entrySet()) {
-// GLMapTile t = e.getValue();
-// if (t.zoomLevel == zoom && t.tileX >= left && t.tileX <= right &&
-// t.tileY >= top && t.tileY <= bottom)
-// continue;
-//
-// if (t.zoomLevel + 1 == zoom) {
-// boolean found = false;
-// for (int i = 0; i < 4; i++) {
-// GLMapTile c = t.child[i];
-// if (c != null && !c.hasTexture() && c.tileX >= left && c.tileX <= right &&
-// c.tileY >= top && c.tileY <= bottom) {
-// found = true;
-// break;
-// }
-// }
-// if (found)
-// continue;
-// }
-// if (t.zoomLevel - 1 == zoom) {
-// GLMapTile p = t.parent;
-// if (p != null && !p.hasTexture() && p.tileX >= left && p.tileX <= right &&
-// p.tileY >= top && p.tileY <= bottom) {
-// continue;
-// }
-// }
-//
-// keys[cnt++] = e.getKey();
-//
-// if (cnt == remove)
-// break;
-// }
-//
-// for (TileCacheKey key : keys) {
-// GLMapTile t = mTiles.remove(key);
-// if (t == null)
-// continue;
-//
-// for (int i = 0; i < 4; i++) {
-// if (t.child[i] != null)
-// t.child[i].parent = null;
-// }
-// if (t.parent != null) {
-// for (int i = 0; i < 4; i++) {
-// if (t.parent.child[i] == t)
-// t.parent.child[i] = null;
-// }
-// }
-// if (t.hasTexture()) {
-// synchronized (mTextures) {
-// mTextures.add(new Integer(t.getTexture()));
-// }
-// }
-// }
-// }
-

src/org/mapsforge/android/swrenderer/WayDecorator.java

@@ -99,7 +99,7 @@ final class WayDecorator {
 		}
 	}
 
-	static void renderText(DatabaseRenderer databaseRenderer, Paint paint, Paint outline,
+	static void renderText(MapGenerator mapGenerator, Paint paint, Paint outline,
 			float[] coordinates, WayDataContainer wayDataContainer,
 			List<WayTextContainer> wayNames) {
 
@@ -185,7 +185,7 @@ final class WayDecorator {
 
 				if (wayNameWidth < 0) {
 					if (text == null) {
-						text = databaseRenderer.getWayName();
+						text = mapGenerator.getWayName();
 						if (text == null)
 							text = "blub";
 					}

src/org/mapsforge/android/utils/GlUtils.java

@@ -40,13 +40,17 @@ public class GlUtils {
 
 		GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureID);
 
-		GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
+		GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER,
+				GLES20.GL_LINEAR);
 
-		GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
+		GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER,
+				GLES20.GL_LINEAR);
 
-		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
+		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S,
+				GLES20.GL_CLAMP_TO_EDGE);
 
-		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
+		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T,
+				GLES20.GL_CLAMP_TO_EDGE);
 
 		GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);
 
@@ -125,4 +129,16 @@ public class GlUtils {
 			// throw new RuntimeException(op + ": glError " + error);
 		}
 	}
+
+	public static boolean checkGlOutOfMemory(String op) {
+		int error;
+		boolean oom = false;
+		while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) {
+			Log.e(TAG, op + ": glError " + error);
+			// throw new RuntimeException(op + ": glError " + error);
+			if (error == 1285)
+				oom = true;
+		}
+		return oom;
+	}
 }

src/org/mapsforge/android/utils/PausableThread.java

@@ -37,6 +37,14 @@ public abstract class PausableThread extends Thread {
 		}
 	}
 
+	@Override
+	public void interrupt() {
+		// first acquire the monitor which is used to call wait()
+		synchronized (this) {
+			super.interrupt();
+		}
+	}
+
 	/**
 	 * @return true if this thread is currently pausing, false otherwise.
 	 */

src/org/mapsforge/app/TileMap.java

@@ -9,8 +9,7 @@ import org.mapsforge.android.DebugSettings;
 import org.mapsforge.android.MapActivity;
 import org.mapsforge.android.MapController;
 import org.mapsforge.android.MapView;
-import org.mapsforge.android.mapgenerator.MapDatabaseFactory;
+import org.mapsforge.android.mapgenerator.MapDatabases;
-import org.mapsforge.android.mapgenerator.MapDatabaseInternal;
 import org.mapsforge.android.rendertheme.InternalRenderTheme;
 import org.mapsforge.android.utils.AndroidUtils;
 import org.mapsforge.app.filefilter.FilterByFileExtension;
@@ -20,7 +19,6 @@ import org.mapsforge.app.filepicker.FilePicker;
 import org.mapsforge.app.preferences.EditPreferences;
 import org.mapsforge.core.BoundingBox;
 import org.mapsforge.core.GeoPoint;
-import org.mapsforge.database.IMapDatabase;
 import org.mapsforge.database.MapFileInfo;
 
 import android.annotation.TargetApi;
@@ -74,7 +72,7 @@ public class TileMap extends MapActivity { // implements ActionBar.OnNavigationL
 	private static final int SELECT_MAP_FILE = 0;
 	private static final int SELECT_RENDER_THEME_FILE = 1;
 	private LocationManager mLocationManager;
-	private MapDatabaseInternal mMapDatabaseInternal;
+	private MapDatabases mMapDatabase;
 	private MyLocationListener mMyLocationListener;
 	private boolean mShowMyLocation;
 	private boolean mSnapToLocation;
@@ -88,8 +86,11 @@ public class TileMap extends MapActivity { // implements ActionBar.OnNavigationL
 
 	@Override
 	public boolean onCreateOptionsMenu(Menu menu) {
-		getMenuInflater().inflate(R.menu.options_menu, menu);
 
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
+			getMenuInflater().inflate(R.menu.options_menu, menu);
+		else
+			getMenuInflater().inflate(R.menu.options_menu_pre_honeycomb, menu);
 		mMenu = menu;
 		return true;
 	}
@@ -434,7 +435,7 @@ public class TileMap extends MapActivity { // implements ActionBar.OnNavigationL
 			editText.setText(Double.toString(mapCenter.getLongitude()));
 
 			SeekBar zoomlevel = (SeekBar) dialog.findViewById(R.id.zoomLevel);
-			zoomlevel.setMax(mMapView.getMapGenerator().getZoomLevelMax());
+			zoomlevel.setMax(20); // FIXME mMapView.getMapGenerator().getZoomLevelMax());
 			zoomlevel.setProgress(mMapView.getMapPosition().getZoomLevel());
 
 			final TextView textView = (TextView) dialog.findViewById(R.id.zoomlevelValue);
@@ -532,25 +533,31 @@ public class TileMap extends MapActivity { // implements ActionBar.OnNavigationL
 
 		if (preferences.contains("mapDatabase")) {
 			String name = preferences.getString("mapDatabase",
-					MapDatabaseInternal.POSTGIS_READER.name());
+					MapDatabases.POSTGIS_READER.name());
 
-			MapDatabaseInternal mapDatabaseInternalNew;
+			MapDatabases mapDatabaseNew;
 
 			try {
-				mapDatabaseInternalNew = MapDatabaseInternal.valueOf(name);
+				mapDatabaseNew = MapDatabases.valueOf(name);
 			} catch (IllegalArgumentException e) {
-				mapDatabaseInternalNew = MapDatabaseInternal.POSTGIS_READER;
+				mapDatabaseNew = MapDatabases.POSTGIS_READER;
 			}
 
-			// mapDatabaseInternalNew = MapDatabaseInternal.JSON_READER;
+			// mapDatabaseInternalNew = MapDatabaseInternal.PBMAP_READER;
-			Log.d("VectorTileMap", "set map database " + mapDatabaseInternalNew);
+			Log.d("VectorTileMap", "set map database " + mapDatabaseNew);
 
-			if (mapDatabaseInternalNew != mMapDatabaseInternal) {
+			if (mapDatabaseNew != mMapDatabase) {
-				IMapDatabase mapDatabase = MapDatabaseFactory
+				mMapView.setMapDatabase(mapDatabaseNew);
-						.createMapDatabase(mapDatabaseInternalNew);
+				mMapDatabase = mapDatabaseNew;
-				mMapView.setMapDatabase(mapDatabase);
-				mMapDatabaseInternal = mapDatabaseInternalNew;
 			}
+
+			// if (mapDatabaseNew != mMapDatabase) {
+			// IMapDatabase mapDatabase = MapDatabaseFactory
+			// .createMapDatabase(mapDatabaseNew);
+			//
+			// mMapView.setMapDatabase(mapDatabase);
+			// mMapDatabase = mapDatabaseNew;
+			// }
 		}
 
 		try {
@@ -586,7 +593,7 @@ public class TileMap extends MapActivity { // implements ActionBar.OnNavigationL
 
 		mMapView.setDebugSettings(debugSettings);
 
-		if (mMapDatabaseInternal == MapDatabaseInternal.MAP_READER) {
+		if (mMapDatabase == MapDatabases.MAP_READER) {
 			if (mMapView.getMapFile() == null)
 				startMapFilePicker();
 		} else {

src/org/mapsforge/app/filepicker/FilePicker.java

@@ -226,7 +226,8 @@ public class FilePicker extends Activity implements AdapterView.OnItemClickListe
 	@Override
 	protected void onResume() {
 		super.onResume();
-		getActionBar().hide();
+		// getActionBar().hide();
+
 		// check if the full screen mode should be activated
 		// if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean("fullscreen", false)) {
 		// getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

src/org/mapsforge/app/preferences/EditPreferences.java

@@ -18,8 +18,6 @@ import org.mapsforge.app.R;
 
 import android.os.Bundle;
 import android.preference.PreferenceActivity;
-import android.preference.PreferenceManager;
-import android.view.WindowManager;
 
 /**
  * Activity to edit the application preferences.
@@ -34,16 +32,16 @@ public class EditPreferences extends PreferenceActivity {
 	@Override
 	protected void onResume() {
 		super.onResume();
-		getActionBar().hide();
+		// getActionBar().hide();
 
 		// check if the full screen mode should be activated
-		if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean("fullscreen",
+		// if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean("fullscreen",
-				false)) {
+		// false)) {
-			getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+		// getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
-			getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
+		// getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
-		} else {
+		// } else {
-			getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
+		// getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
-			getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
+		// getWindow().addFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);
-		}
+		// }
 	}
 }

src/org/mapsforge/database/IMapDatabase.java

@@ -62,6 +62,8 @@ public interface IMapDatabase {
 	 */
 	public abstract FileOpenResult openFile(File mapFile);
 
+	public abstract String getMapProjection();
+
 	/**
 	 * @param position
 	 *            ....

src/org/mapsforge/database/json/MapDatabase.java

@@ -31,13 +31,14 @@ import org.mapsforge.database.MapFileInfo;
  */
 public class MapDatabase implements IMapDatabase {
 
+	private final static String PROJECTION = "Mercator";
 	private float[] mCoords = new float[20];
-	private int[] mIndex = new int[1];
+	private int[] mIndex = new int[2];
 	// private Tag[] mTags = { new Tag("boundary", "administrative"), new Tag("admin_level", "2") };
-	private Tag[] mTags = { new Tag("building", "yes") };
+	private Tag[] mTags = { new Tag("natural", "water") };
 	private final MapFileInfo mMapInfo =
 			new MapFileInfo(new BoundingBox(-180, -90, 180, 90),
-					new Byte((byte) 0), null, "Mercator", 0, 0, 0, "de", "yo!", "by me");
+					new Byte((byte) 0), null, PROJECTION, 0, 0, 0, "de", "yo!", "by me");
 
 	private boolean mOpenFile = false;
 
@@ -95,10 +96,10 @@ public class MapDatabase implements IMapDatabase {
 		//
 		// mIndex[0] = 10;
 
-		lon1 = (float) MercatorProjection.pixelXToLongitude(cx - 80, tile.zoomLevel) * 1000000;
+		lon1 = (float) MercatorProjection.pixelXToLongitude(cx - 139, tile.zoomLevel) * 1000000;
-		lon2 = (float) MercatorProjection.pixelXToLongitude(cx + 80, tile.zoomLevel) * 1000000;
+		lon2 = (float) MercatorProjection.pixelXToLongitude(cx + 139, tile.zoomLevel) * 1000000;
-		lat1 = (float) MercatorProjection.pixelYToLatitude(cy - 80, tile.zoomLevel) * 1000000;
+		lat1 = (float) MercatorProjection.pixelYToLatitude(cy - 139, tile.zoomLevel) * 1000000;
-		lat2 = (float) MercatorProjection.pixelYToLatitude(cy + 80, tile.zoomLevel) * 1000000;
+		lat2 = (float) MercatorProjection.pixelYToLatitude(cy + 139, tile.zoomLevel) * 1000000;
 
 		mCoords[0] = lon1;
 		mCoords[1] = lat1;
@@ -117,9 +118,35 @@ public class MapDatabase implements IMapDatabase {
 
 		mIndex[0] = 10;
 
+		lon1 = (float) MercatorProjection.pixelXToLongitude(cx - 119, tile.zoomLevel) * 1000000;
+		lon2 = (float) MercatorProjection.pixelXToLongitude(cx + 119, tile.zoomLevel) * 1000000;
+		lat1 = (float) MercatorProjection.pixelYToLatitude(cy - 119, tile.zoomLevel) * 1000000;
+		lat2 = (float) MercatorProjection.pixelYToLatitude(cy + 119, tile.zoomLevel) * 1000000;
+
+		mCoords[10] = lon1;
+		mCoords[11] = lat1;
+
+		mCoords[12] = lon2;
+		mCoords[13] = lat1;
+
+		mCoords[14] = lon2;
+		mCoords[15] = lat2;
+
+		mCoords[16] = lon1;
+		mCoords[17] = lat2;
+
+		mCoords[18] = lon1;
+		mCoords[19] = lat1;
+
+		mIndex[1] = 10;
 		mapDatabaseCallback.renderWay((byte) 0, mTags, mCoords, mIndex, true);
 	}
 
+	@Override
+	public String getMapProjection() {
+		return PROJECTION;
+	}
+
 	@Override
 	public MapFileInfo getMapFileInfo() {
 		return mMapInfo;

src/org/mapsforge/database/mapfile/MapDatabase.java

@@ -177,11 +177,13 @@ public class MapDatabase implements IMapDatabase {
 	 */
 	private static final int WAY_NUMBER_OF_TAGS_BITMASK = 0x0f;
 
-	private IndexCache mDatabaseIndexCache;
+	private static IndexCache sDatabaseIndexCache;
+	private static MapFileHeader sMapFileHeader;
+	private static int instances = 0;
+
 	private long mFileSize;
 	private boolean mDebugFile;
 	private RandomAccessFile mInputFile;
-	private MapFileHeader mMapFileHeader;
 	private ReadBuffer mReadBuffer;
 	private String mSignatureBlock;
 	private String mSignaturePoi;
@@ -193,31 +195,6 @@ public class MapDatabase implements IMapDatabase {
 	private float[] mWayNodes = new float[100000];
 	private int mWayNodePosition;
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.mapsforge.map.reader.IMapDatabase#closeFile()
-	 */
-	@Override
-	public void closeFile() {
-		try {
-			mMapFileHeader = null;
-
-			if (mDatabaseIndexCache != null) {
-				mDatabaseIndexCache.destroy();
-				mDatabaseIndexCache = null;
-			}
-
-			if (mInputFile != null) {
-				mInputFile.close();
-				mInputFile = null;
-			}
-
-			mReadBuffer = null;
-		} catch (IOException e) {
-			LOG.log(Level.SEVERE, null, e);
-		}
-	}
-
 	private int minLat, minLon;
 
 	/*
@@ -227,7 +204,7 @@ public class MapDatabase implements IMapDatabase {
 	 */
 	@Override
 	public void executeQuery(Tile tile, IMapDatabaseCallback mapDatabaseCallback) {
-		if (mMapFileHeader == null)
+		if (sMapFileHeader == null)
 			return;
 
 		if (mIntBuffer == null)
@@ -235,29 +212,13 @@ public class MapDatabase implements IMapDatabase {
 
 		mWayNodePosition = 0;
 
-		// if (tile.zoomLevel < 10) {
-		// // reduce small nodes with distance smaller min pixel
-		// int min = 1;
-		// long cx = tile.getPixelX() + (Tile.TILE_SIZE >> 1);
-		// long cy = tile.getPixelY() + (Tile.TILE_SIZE >> 1);
-		// double l1 = MercatorProjection.pixelXToLongitude(cx, tile.zoomLevel);
-		// double l2 = MercatorProjection.pixelXToLongitude(cx + min, tile.zoomLevel);
-		// minLon = (int) Math.abs((l1 * 1000000.0) - (l2 * 1000000.0));
-		// l1 = MercatorProjection.pixelYToLatitude(cy, tile.zoomLevel);
-		// l2 = MercatorProjection.pixelYToLatitude(cy + min, tile.zoomLevel);
-		// minLat = (int) Math.abs((l1 * 1000000.0) - (l2 * 1000000.0));
-		// } else {
-		minLat = 0;
-		minLon = 0;
-		// }
-
 		try {
-			prepareExecution();
+			// prepareExecution();
 			QueryParameters queryParameters = new QueryParameters();
-			queryParameters.queryZoomLevel = mMapFileHeader
+			queryParameters.queryZoomLevel = sMapFileHeader
 					.getQueryZoomLevel(tile.zoomLevel);
 			// get and check the sub-file for the query zoom level
-			SubFileParameter subFileParameter = mMapFileHeader
+			SubFileParameter subFileParameter = sMapFileHeader
 					.getSubFileParameter(queryParameters.queryZoomLevel);
 			if (subFileParameter == null) {
 				LOG.warning("no sub-file for zoom level: "
@@ -279,10 +240,15 @@ public class MapDatabase implements IMapDatabase {
 	 */
 	@Override
 	public MapFileInfo getMapFileInfo() {
-		if (mMapFileHeader == null) {
+		if (sMapFileHeader == null) {
 			throw new IllegalStateException("no map file is currently opened");
 		}
-		return mMapFileHeader.getMapFileInfo();
+		return sMapFileHeader.getMapFileInfo();
+	}
+
+	@Override
+	public String getMapProjection() {
+		return getMapFileInfo().projectionName;
 	}
 
 	/*
@@ -300,6 +266,7 @@ public class MapDatabase implements IMapDatabase {
 	 */
 	@Override
 	public FileOpenResult openFile(File mapFile) {
+
 		try {
 			if (mapFile == null) {
 				// throw new IllegalArgumentException("mapFile must not be null");
@@ -323,14 +290,23 @@ public class MapDatabase implements IMapDatabase {
 			mFileSize = mInputFile.length();
 			mReadBuffer = new ReadBuffer(mInputFile);
 
-			mMapFileHeader = new MapFileHeader();
+			if (instances > 0) {
-			FileOpenResult fileOpenResult = mMapFileHeader.readHeader(mReadBuffer,
+				instances++;
+				return FileOpenResult.SUCCESS;
+			}
+
+			sMapFileHeader = new MapFileHeader();
+			FileOpenResult fileOpenResult = sMapFileHeader.readHeader(mReadBuffer,
 					mFileSize);
 			if (!fileOpenResult.isSuccess()) {
 				closeFile();
 				return fileOpenResult;
 			}
 
+			prepareExecution();
+
+			instances++;
+
 			return FileOpenResult.SUCCESS;
 		} catch (IOException e) {
 			LOG.log(Level.SEVERE, null, e);
@@ -340,6 +316,37 @@ public class MapDatabase implements IMapDatabase {
 		}
 	}
 
+	/*
+	 * (non-Javadoc)
+	 * @see org.mapsforge.map.reader.IMapDatabase#closeFile()
+	 */
+	@Override
+	public void closeFile() {
+		instances--;
+		if (instances > 0) {
+			mReadBuffer = null;
+			return;
+		}
+
+		try {
+			sMapFileHeader = null;
+
+			if (sDatabaseIndexCache != null) {
+				sDatabaseIndexCache.destroy();
+				sDatabaseIndexCache = null;
+			}
+
+			if (mInputFile != null) {
+				mInputFile.close();
+				mInputFile = null;
+			}
+
+			mReadBuffer = null;
+		} catch (IOException e) {
+			LOG.log(Level.SEVERE, null, e);
+		}
+	}
+
 	/**
 	 * Logs the debug signatures of the current way and block.
 	 */
@@ -351,8 +358,8 @@ public class MapDatabase implements IMapDatabase {
 	}
 
 	private void prepareExecution() {
-		if (mDatabaseIndexCache == null) {
+		if (sDatabaseIndexCache == null) {
-			mDatabaseIndexCache = new IndexCache(mInputFile, INDEX_CACHE_SIZE);
+			sDatabaseIndexCache = new IndexCache(mInputFile, INDEX_CACHE_SIZE);
 		}
 	}
 
@@ -436,7 +443,7 @@ public class MapDatabase implements IMapDatabase {
 				long blockNumber = row * subFileParameter.blocksWidth + column;
 
 				// get the current index entry
-				long currentBlockIndexEntry = mDatabaseIndexCache.getIndexEntry(
+				long currentBlockIndexEntry = sDatabaseIndexCache.getIndexEntry(
 						subFileParameter, blockNumber);
 
 				// check if the current query would still return a water tile
@@ -462,7 +469,7 @@ public class MapDatabase implements IMapDatabase {
 					nextBlockPointer = subFileParameter.subFileSize;
 				} else {
 					// get and check the next block pointer
-					nextBlockPointer = mDatabaseIndexCache.getIndexEntry(
+					nextBlockPointer = sDatabaseIndexCache.getIndexEntry(
 							subFileParameter, blockNumber + 1)
 							& BITMASK_INDEX_OFFSET;
 					if (nextBlockPointer < 1
@@ -559,7 +566,7 @@ public class MapDatabase implements IMapDatabase {
 	 * @return true if the POIs could be processed successfully, false otherwise.
 	 */
 	private boolean processPOIs(IMapDatabaseCallback mapDatabaseCallback, int numberOfPois) {
-		Tag[] poiTags = mMapFileHeader.getMapFileInfo().poiTags;
+		Tag[] poiTags = sMapFileHeader.getMapFileInfo().poiTags;
 		Tag[] tags = null;
 
 		for (int elementCounter = numberOfPois; elementCounter != 0; --elementCounter) {
@@ -778,7 +785,7 @@ public class MapDatabase implements IMapDatabase {
 			int numberOfWays) {
 
 		Tag[] tags = null;
-		Tag[] wayTags = mMapFileHeader.getMapFileInfo().wayTags;
+		Tag[] wayTags = sMapFileHeader.getMapFileInfo().wayTags;
 		int[] textPos = new int[3];
 		// float[] labelPosition;
 		boolean skippedWays = false;
@@ -957,7 +964,7 @@ public class MapDatabase implements IMapDatabase {
 					|| cumulatedNumberOfWays > MAXIMUM_ZOOM_TABLE_OBJECTS) {
 				LOG.warning("invalid cumulated number of ways in row " + row + ' '
 						+ cumulatedNumberOfWays);
-				if (mMapFileHeader.getMapFileInfo().debugFile) {
+				if (sMapFileHeader.getMapFileInfo().debugFile) {
 					LOG.warning(DEBUG_SIGNATURE_BLOCK + mSignatureBlock);
 				}
 				return null;

src/org/mapsforge/database/pbmap/MapDatabase.java

@@ -0,0 +1,513 @@
+/*
+ * Copyright 2012 Hannes Janetzek
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.mapsforge.database.pbmap;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.HashMap;
+import java.util.zip.GZIPInputStream;
+
+import org.apache.http.Header;
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.HttpStatus;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.message.BasicHeader;
+import org.mapsforge.core.BoundingBox;
+import org.mapsforge.core.GeoPoint;
+import org.mapsforge.core.Tag;
+import org.mapsforge.core.Tile;
+import org.mapsforge.core.WebMercator;
+import org.mapsforge.database.FileOpenResult;
+import org.mapsforge.database.IMapDatabase;
+import org.mapsforge.database.IMapDatabaseCallback;
+import org.mapsforge.database.MapFileInfo;
+
+import android.net.http.AndroidHttpClient;
+import android.util.Log;
+
+/**
+ * 
+ *
+ */
+public class MapDatabase implements IMapDatabase {
+	private static final String TAG = "MapDatabase";
+
+	private static final MapFileInfo mMapInfo =
+			new MapFileInfo(new BoundingBox(-180, -90, 180, 90),
+					new Byte((byte) 14), new GeoPoint(53.11, 8.85),
+					WebMercator.NAME, 0, 0, 0, "de", "comment", "author");
+
+	private boolean mOpenFile = false;
+
+	// private static final String URL = "http://city.informatik.uni-bremen.de:8020/test/%d/%d/%d.osmtile";
+	private static final String URL = "http://city.informatik.uni-bremen.de/osmstache/test/%d/%d/%d.osmtile";
+	private static final Header encodingHeader =
+			new BasicHeader("Accept-Encoding", "gzip");
+
+	private static volatile HashMap<String, Tag> tagHash = new HashMap<String, Tag>(100);
+
+	private Tag[] curTags = new Tag[1000];
+	private int mCurTagCnt;
+
+	private AndroidHttpClient mClient;
+	private IMapDatabaseCallback mMapGenerator;
+	private float mScaleFactor;
+
+	@Override
+	public void executeQuery(Tile tile, IMapDatabaseCallback mapDatabaseCallback) {
+
+		String url = String.format(URL, Integer.valueOf(tile.zoomLevel),
+				Long.valueOf(tile.tileX), Long.valueOf(tile.tileY));
+
+		HttpGet getRequest = new HttpGet(url);
+		getRequest.addHeader(encodingHeader);
+		mMapGenerator = mapDatabaseCallback;
+		mCurTagCnt = 0;
+		// using variable coordinate scalefactor to take advantage of
+		// variable byte encoded integers
+		mScaleFactor = 1 / 100f;
+		if (tile.zoomLevel < 12)
+			mScaleFactor = (float) Math.pow(2, (12 - tile.zoomLevel)) / 100f;
+
+		try {
+			HttpResponse response = mClient.execute(getRequest);
+			final int statusCode = response.getStatusLine().getStatusCode();
+			if (statusCode != HttpStatus.SC_OK) {
+				Log.d(TAG, "Http response " + statusCode);
+				return;
+			}
+
+			final HttpEntity entity = response.getEntity();
+			if (entity == null) {
+				Log.d(TAG, "Somethings wrong? - no entity " + statusCode);
+				return;
+			}
+
+			InputStream is = null;
+			GZIPInputStream zis = null;
+			try {
+
+				is = entity.getContent();
+				zis = new GZIPInputStream(is);
+
+				decode(zis);
+
+			} finally {
+				if (zis != null)
+					zis.close();
+				if (is != null)
+					is.close();
+				entity.consumeContent();
+			}
+		} catch (Exception ex) {
+			getRequest.abort();
+			ex.printStackTrace();
+		}
+	}
+
+	@Override
+	public String getMapProjection() {
+		return WebMercator.NAME;
+	}
+
+	@Override
+	public MapFileInfo getMapFileInfo() {
+		return mMapInfo;
+	}
+
+	@Override
+	public boolean hasOpenFile() {
+		return mOpenFile;
+	}
+
+	@Override
+	public FileOpenResult openFile(File mapFile) {
+		mOpenFile = true;
+		mClient = AndroidHttpClient.newInstance("Android");
+		return new FileOpenResult();
+	}
+
+	@Override
+	public void closeFile() {
+		mOpenFile = false;
+		if (mClient != null)
+			mClient.close();
+	}
+
+	@Override
+	public String readString(int position) {
+		return null;
+	}
+
+	private static final int BUFFER_SIZE = 32768;
+	private final byte[] buffer = new byte[BUFFER_SIZE];
+	private int bufferPos;
+	private int bufferSize;
+	private InputStream inputStream;
+
+	private static final int TAG_TILE_TAGS = 1;
+	private static final int TAG_TILE_WAYS = 2;
+	private static final int TAG_TILE_NODES = 3;
+	private static final int TAG_WAY_TAGS = 1;
+	private static final int TAG_WAY_INDEX = 2;
+	private static final int TAG_WAY_COORDS = 3;
+	// private static final int TAG_NODE_TAGS = 1;
+	// private static final int TAG_NODE_COORDS = 2;
+
+	private int bytesRead;
+
+	private boolean decode(InputStream is) throws IOException {
+		inputStream = is;
+		bytesRead = 0;
+		bufferSize = 0;
+		bufferPos = 0;
+		while (true) {
+			// read tag and wire type
+			int val = decodeVarint32();
+			if (val == 0) {
+				// Log.d(TAG, "EOF, all good");
+				return true;
+			}
+			int tag = (val >> 3);
+			// int wireType = (val & 7);
+			// Log.d(TAG, "tile " + tag + " " + wireType);
+
+			switch (tag) {
+				case TAG_TILE_TAGS:
+					decodeTileTags();
+					break;
+
+				case TAG_TILE_WAYS:
+					decodeTileWays();
+					break;
+
+				case TAG_TILE_NODES:
+					decodeTileNodes();
+					break;
+
+				default:
+					Log.d(TAG, "invalid type for tile: " + tag);
+					return false;
+			}
+		}
+	}
+
+	private boolean decodeTileTags() throws IOException {
+		String tagString = decodeString();
+
+		Tag tag = tagHash.get(tagString);
+		if (tag == null) {
+			tag = new Tag(tagString);
+			tagHash.put(tagString, tag);
+		}
+		curTags[mCurTagCnt++] = tag;
+
+		// Log.d(TAG, "tag:" + tag);
+		return true;
+	}
+
+	private boolean decodeTileWays() throws IOException {
+		int bytes = decodeVarint32();
+
+		int end = bytesRead + bytes;
+		int indexCnt = 0;
+		int tagCnt = 0;
+		int coordCnt = 0;
+		while (bytesRead < end) {
+			// read tag and wire type
+
+			int val = decodeVarint32();
+			if (val == 0)
+				break;
+
+			int tag = (val >> 3);
+			// int wireType = val & 7;
+
+			// Log.d(TAG, "way " + tag + " " + wireType + " bytes:" + bytes);
+
+			switch (tag) {
+				case TAG_WAY_TAGS:
+					tagCnt = decodeWayTags();
+					break;
+
+				case TAG_WAY_INDEX:
+					indexCnt = decodeWayIndices();
+					break;
+
+				case TAG_WAY_COORDS:
+					coordCnt = decodeWayCoordinates();
+					break;
+
+				default:
+					Log.d(TAG, "invalid type for way: " + tag);
+			}
+		}
+
+		if (indexCnt == 0 || tagCnt == 0)
+			return false;
+
+		int[] index = new int[indexCnt];
+
+		int sum = 0;
+		for (int i = 0; i < indexCnt; i++) {
+			index[i] = tmpIndices[i] * 2;
+			sum += index[i];
+		}
+
+		Tag[] tags = new Tag[tagCnt];
+		for (int i = 0; i < tagCnt; i++)
+			tags[i] = curTags[tmpTags[i]];
+
+		float[] coords = tmpCoords;
+		int pos = 0;
+
+		if (coordCnt != sum) {
+			Log.d(TAG, "way length is wrong " + coordCnt + " " + sum);
+			return false;
+		}
+
+		float z = mScaleFactor;
+		for (int j = 0, m = indexCnt; j < m; j++) {
+			float lastX = 0;
+			float lastY = 0;
+
+			for (int n = index[j] + pos; pos < n; pos += 2) {
+				lastX = coords[pos] = (coords[pos] * z) + lastX;
+				lastY = coords[pos + 1] = (coords[pos + 1] * z) + lastY;
+			}
+
+		}
+
+		mMapGenerator.renderWay((byte) 0, tags, coords, index, true);
+		return true;
+	}
+
+	private boolean decodeTileNodes() throws IOException {
+		int bytes = decodeVarint32();
+		Log.d(TAG, "way nodes " + bytes);
+		return true;
+	}
+
+	private int MAX_WAY_COORDS = 32768;
+	private int MAX_WAY_INDICES = 1000;
+	private int[] tmpTags = new int[32];
+	private int[] tmpIndices = new int[MAX_WAY_INDICES];
+	private float[] tmpCoords = new float[MAX_WAY_COORDS];
+
+	// private boolean ensureBufferSize(int size) throws IOException {
+	// if (size > (bufferSize - bufferPos))
+	// readBuffer(size - (bufferSize - bufferPos));
+	//
+	// return true;
+	// }
+
+	private int decodeWayTags() throws IOException {
+		int bytes = decodeVarint32();
+		// Log.d(TAG, "way tags: " + bytes);
+
+		int cnt = 0;
+		int end = bytesRead + bytes;
+
+		while (bytesRead < end)
+			tmpTags[cnt++] = decodeVarint32();
+
+		return cnt;
+	}
+
+	private int decodeWayIndices() throws IOException {
+		int bytes = decodeVarint32();
+		// Log.d(TAG, "way indices: " + bytes);
+
+		int cnt = 0;
+		int end = bytesRead + bytes;
+
+		while (bytesRead < end) {
+			int val = decodeVarint32();
+			if (cnt >= MAX_WAY_INDICES) {
+
+				MAX_WAY_INDICES += 128;
+				Log.d(TAG, "increase indices array " + MAX_WAY_INDICES);
+				int[] tmp = new int[MAX_WAY_INDICES];
+				System.arraycopy(tmpIndices, 0, tmp, 0, cnt);
+				tmpIndices = tmp;
+			}
+
+			tmpIndices[cnt++] = val;
+
+		}
+		return cnt;
+	}
+
+	private int decodeWayCoordinates() throws IOException {
+		int bytes = decodeVarint32();
+
+		int cnt = 0;
+		int end = bytesRead + bytes;
+
+		while (bytesRead < end) {
+			int val = decodeZigZag32(decodeVarint32());
+			if (cnt >= MAX_WAY_COORDS) {
+				MAX_WAY_COORDS += 128;
+				Log.d(TAG, "increase coords array  " + MAX_WAY_COORDS);
+				float[] tmp = new float[MAX_WAY_COORDS];
+				System.arraycopy(tmpCoords, 0, tmp, 0, cnt);
+				tmpCoords = tmp;
+			}
+			tmpCoords[cnt++] = val;
+		}
+		return cnt;
+	}
+
+	private void readBuffer() throws IOException {
+
+		int len = inputStream.read(buffer, 0, BUFFER_SIZE);
+		if (len < 0) {
+			buffer[bufferPos] = 0;
+			// Log.d(TAG, " nothing to read...  pos " + bufferPos + ", size "
+			// + bufferSize + ", read " + bytesRead);
+			return;
+		}
+		bufferSize = len;
+		bufferPos = 0;
+
+		// Log.d(TAG, "pos " + bufferPos + ", size " + bufferSize + ", read "
+		// + bytesRead);
+	}
+
+	private void readBuffer(int size) throws IOException {
+		if (size < (bufferSize - bufferPos))
+			return;
+
+		if (size > BUFFER_SIZE) {
+			Log.d(TAG, "EEEK too large");
+			// FIXME throw exception, but frankly better sanitize tile data on compilation
+			// this only happen with Strings larger than 32kb
+			return;
+		}
+
+		if ((size - bufferSize) + bufferPos > BUFFER_SIZE) {
+			// copy bytes left to read from buffer to the beginning of buffer
+			System.arraycopy(buffer, bufferPos, buffer, 0, bufferSize - bufferPos);
+			bufferPos = 0;
+		}
+
+		while ((bufferSize - bufferPos) < size) {
+			// read until requested size is available in buffer
+			int len = inputStream.read(buffer, bufferSize, BUFFER_SIZE - bufferSize);
+			if (len < 0) {
+				buffer[bufferSize - 1] = 0; // FIXME is this needed?
+				break;
+			}
+			bufferSize += len;
+		}
+
+		// Log.d(TAG, "needed " + size + " pos " + bufferPos + ", size "
+		// + bufferSize
+		// + ", read " + bytesRead);
+	}
+
+	/* All code below is taken from or based on Google's Protocol Buffers implementation: */
+
+	// Protocol Buffers - Google's data interchange format
+	// Copyright 2008 Google Inc. All rights reserved.
+	// http://code.google.com/p/protobuf/
+	//
+	// Redistribution and use in source and binary forms, with or without
+	// modification, are permitted provided that the following conditions are
+	// met:
+	//
+	// * Redistributions of source code must retain the above copyright
+	// notice, this list of conditions and the following disclaimer.
+	// * Redistributions in binary form must reproduce the above
+	// copyright notice, this list of conditions and the following disclaimer
+	// in the documentation and/or other materials provided with the
+	// distribution.
+	// * Neither the name of Google Inc. nor the names of its
+	// contributors may be used to endorse or promote products derived from
+	// this software without specific prior written permission.
+	//
+	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+	// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+	// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+	// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+	// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+	// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+	// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+	// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+	// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+	// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+	// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+	private byte readRawByte() throws IOException {
+		if (bufferPos == bufferSize) {
+			readBuffer();
+		}
+		bytesRead++;
+		return buffer[bufferPos++];
+	}
+
+	private int decodeVarint32() throws IOException {
+		byte tmp = readRawByte();
+		if (tmp >= 0) {
+			return tmp;
+		}
+		int result = tmp & 0x7f;
+		if ((tmp = readRawByte()) >= 0) {
+			return result | tmp << 7;
+		}
+		result |= (tmp & 0x7f) << 7;
+		if ((tmp = readRawByte()) >= 0) {
+			return result | tmp << 14;
+		}
+		result |= (tmp & 0x7f) << 14;
+		if ((tmp = readRawByte()) >= 0) {
+			return result | tmp << 21;
+		}
+		result |= (tmp & 0x7f) << 21;
+		result |= (tmp = readRawByte()) << 28;
+
+		if (tmp < 0) {
+			// Discard upper 32 bits.
+			for (int i = 0; i < 5; i++) {
+				if (readRawByte() >= 0) {
+					return result;
+				}
+			}
+			Log.d(TAG, "EEK malformedVarint");
+			// FIXME throw some poo
+		}
+
+		return result;
+	}
+
+	private String decodeString() throws IOException {
+		final int size = decodeVarint32();
+
+		readBuffer(size);
+
+		final String result = new String(buffer, bufferPos, size, "UTF-8");
+		bufferPos += size;
+		bytesRead += size;
+		return result;
+
+	}
+
+	public static int decodeZigZag32(final int n) {
+		return (n >>> 1) ^ -(n & 1);
+	}
+
+}

src/org/mapsforge/database/postgis/MapDatabase.java

@@ -26,9 +26,9 @@ import java.util.Properties;
 
 import org.mapsforge.core.BoundingBox;
 import org.mapsforge.core.GeoPoint;
-import org.mapsforge.core.WebMercator;
 import org.mapsforge.core.Tag;
 import org.mapsforge.core.Tile;
+import org.mapsforge.core.WebMercator;
 import org.mapsforge.database.FileOpenResult;
 import org.mapsforge.database.IMapDatabase;
 import org.mapsforge.database.IMapDatabaseCallback;
@@ -40,7 +40,7 @@ import org.postgresql.PGConnection;
  *
  */
 public class MapDatabase implements IMapDatabase {
-	private static final String QUERY = "SELECT * FROM __get_tile(?,?,?)";
+	private static final String QUERY = "SELECT tags, geom FROM __get_tile(?,?,?)";
 
 	private final float mScale = 1; // 1000000.0f;
 
@@ -55,16 +55,13 @@ public class MapDatabase implements IMapDatabase {
 			new MapFileInfo(new BoundingBox(-180, -85, 180, 85),
 					new Byte((byte) 14), new GeoPoint(53.11, 8.85),
 					WebMercator.NAME,
-					0, 0, 0, "de", "yo!", "hannes");
+					0, 0, 0, "de", "comment", "author");
-	// new MapFileInfo(new BoundingBox(-180, -90, 180, 90),
-	// new Byte((byte) 0), null, "Mercator",
-	// 0, 0, 0, "de", "yo!", "by me");
 
 	private boolean mOpenFile = false;
 
 	private Connection connection = null;
-	private static HashMap<Entry<String, String>, Tag> tagHash = new HashMap<Entry<String, String>, Tag>(
+	private static volatile HashMap<Entry<String, String>, Tag> tagHash =
-			100);
+			new HashMap<Entry<String, String>, Tag>(100);
 	private PreparedStatement prepQuery = null;
 
 	private boolean connect() {
@@ -123,7 +120,6 @@ public class MapDatabase implements IMapDatabase {
 
 		byte[] b = null;
 		PGHStore h = null;
-		// long id;
 
 		try {
 			while (r != null && r.next()) {
@@ -131,9 +127,7 @@ public class MapDatabase implements IMapDatabase {
 				mCoordPos = 0;
 
 				try {
-					// id = r.getLong(1);
+					Object obj = r.getObject(1);
-
-					Object obj = r.getObject(2);
 					h = null;
 
 					if (obj instanceof PGHStore)
@@ -141,7 +135,7 @@ public class MapDatabase implements IMapDatabase {
 					else
 						continue;
 
-					b = r.getBytes(3);
+					b = r.getBytes(2);
 
 				} catch (SQLException e) {
 					e.printStackTrace();
@@ -184,6 +178,11 @@ public class MapDatabase implements IMapDatabase {
 		}
 	}
 
+	@Override
+	public String getMapProjection() {
+		return WebMercator.NAME;
+	}
+
 	@Override
 	public MapFileInfo getMapFileInfo() {
 		return mMapInfo;