- refactor: moving parts of MapRenderer that run on main thread to new TileLoader class

- adding option for enable rotation.. still needs work
- renaming json db to test - it doesnt do json but still handy for testing

res/menu/options_menu.xml

@@ -22,6 +22,10 @@
             <item
                 android:id="@+id/menu_position_map_center"
                 android:title="@string/menu_position_map_file_center"/>
+            
+            <item
+                android:id="@+id/menu_rotation_enable"
+                android:title="@string/menu_rotation_enable"/>
         </menu>
     </item>
     <item

res/menu/options_menu_pre_honeycomb.xml

@@ -22,6 +22,10 @@
             <item
                 android:id="@+id/menu_position_map_center"
                 android:title="@string/menu_position_map_file_center"/>
+            
+            <item
+                android:id="@+id/menu_rotation_enable"
+                android:title="@string/menu_rotation_enable"/>
         </menu>
     </item>
     <item

res/values/strings.xml

@@ -51,6 +51,7 @@
 	<string name="menu_info_about">About this software</string>
 	<string name="menu_mapfile">Map file</string>
 	<string name="menu_position">Position</string>
+	<string name="menu_rotation_enable">Enable rotation</string>
 	<string name="menu_position_enter_coordinates">Enter coordinates</string>
 	<string name="menu_position_last_known">Last known location</string>
 	<string name="menu_position_map_file_center">Map file center</string>

src/org/mapsforge/android/MapView.java

@@ -24,11 +24,11 @@ import javax.xml.parsers.ParserConfigurationException;
 
 import org.mapsforge.android.mapgenerator.IMapGenerator;
 import org.mapsforge.android.mapgenerator.JobQueue;
+import org.mapsforge.android.mapgenerator.JobTile;
 import org.mapsforge.android.mapgenerator.MapDatabaseFactory;
 import org.mapsforge.android.mapgenerator.MapDatabases;
 import org.mapsforge.android.mapgenerator.MapRendererFactory;
 import org.mapsforge.android.mapgenerator.MapRenderers;
-import org.mapsforge.android.mapgenerator.JobTile;
 import org.mapsforge.android.mapgenerator.MapWorker;
 import org.mapsforge.android.mapgenerator.Theme;
 import org.mapsforge.android.rendertheme.ExternalRenderTheme;
@@ -78,6 +78,7 @@ public class MapView extends GLSurfaceView {
 	private static final Byte DEFAULT_START_ZOOM_LEVEL = Byte.valueOf((byte) 16);
 
 	public final static boolean debugFrameTime = false;
+	public boolean enableRotation = false;
 
 	private final MapController mMapController;
 	private final MapViewPosition mMapViewPosition;
@@ -160,7 +161,7 @@ public class MapView extends GLSurfaceView {
 			IMapDatabase mapDatabase;
 			if (mDebugDatabase) {
 				mapDatabase = MapDatabaseFactory
-						.createMapDatabase(MapDatabases.JSON_READER);
+						.createMapDatabase(MapDatabases.TEST_READER);
 			} else {
 				mapDatabase = MapDatabaseFactory.createMapDatabase(mapDatabaseType);
 			}
@@ -684,6 +685,10 @@ public class MapView extends GLSurfaceView {
 			mapWorker.proceed();
 	}
 
+	public void enableRotation(boolean enable) {
+		enableRotation = enable;
+	}
+
 	// public final int
 	// public Handler messageHandler = new Handler() {
 	//

src/org/mapsforge/android/MapViewPosition.java

@@ -19,7 +19,6 @@ import org.mapsforge.core.MapPosition;
 import org.mapsforge.core.MercatorProjection;
 
 import android.util.FloatMath;
-import android.util.Log;
 
 /**
  * A MapPosition stores the latitude and longitude coordinate of a MapView together with its zoom level.
@@ -112,41 +111,35 @@ public class MapViewPosition {
 	public synchronized void moveMap(float mx, float my) {
 		double pixelX = MercatorProjection.longitudeToPixelX(mLongitude, mZoomLevel);
 		double pixelY = MercatorProjection.latitudeToPixelY(mLatitude, mZoomLevel);
+		double dx, dy;
 
-		// float rad = (float) Math.toRadians(mRotation);
+		if (mMapView.enableRotation) {
-		// mx /= mScale;
+			float rad = (float) Math.toRadians(mRotation);
-		// my /= mScale;
+			dx = mx / mScale;
-		//
+			dy = my / mScale;
-		// double x = mx * FloatMath.cos(rad) + my * -FloatMath.sin(rad);
-		// double y = mx * FloatMath.sin(rad) + my * FloatMath.cos(rad);
-		//
-		// double dx = pixelX - x;
-		// double dy = pixelY - y;
 
-		double dx = pixelX - mx / mScale;
+			double x = dx * FloatMath.cos(rad) + dy * -FloatMath.sin(rad);
-		double dy = pixelY - my / mScale;
+			double y = dx * FloatMath.sin(rad) + dy * FloatMath.cos(rad);
 
+			dx = pixelX - x;
+			dy = pixelY - y;
+		}
+		else {
+			dx = pixelX - mx / mScale;
+			dy = pixelY - my / mScale;
+		}
 		mLatitude = MercatorProjection.pixelYToLatitude(dy, mZoomLevel);
 		mLatitude = MercatorProjection.limitLatitude(mLatitude);
 
 		mLongitude = MercatorProjection.pixelXToLongitude(dx, mZoomLevel);
 
-		//
-		// mLatitude = MercatorProjection.pixelYToLatitude(pixelY - moveVertical / mScale,
-		// mZoomLevel);
-		// mLatitude = MercatorProjection.limitLatitude(mLatitude);
-		//
-		// mLongitude = MercatorProjection.pixelXToLongitude(pixelX - moveHorizontal
-		// / mScale, mZoomLevel);
-
 		mLongitude = MercatorProjection.wrapLongitude(mLongitude);
 		// mLongitude = MercatorProjection.limitLongitude(mLongitude);
 	}
 
-	public synchronized void rotateMap(float angle) {
+	public synchronized void rotateMap(float angle, float cx, float cy) {
+		moveMap(cx, cy);
 		mRotation -= angle;
-		Log.d("...", "angle:" + mRotation);
-		// mRotation %= 360;
 	}
 
 	synchronized void setMapCenter(GeoPoint geoPoint) {

src/org/mapsforge/android/TouchHandler.java

@@ -112,16 +112,33 @@ public class TouchHandler {
 			return true;
 		}
 
-		// if (multi > 0) {
+		if (mMapView.enableRotation) {
-		// double dx = event.getX(0) - event.getX(1);
+			if (multi > 0) {
-		// double dy = event.getY(0) - event.getY(1);
+				double x1 = event.getX(0);
-		// double rad = Math.atan2(dy, dx);
+				double x2 = event.getX(1);
-		// float angle = (float) Math.toDegrees(rad);
+				double y1 = event.getY(0);
-		// mMapPosition.rotateMap(angle - mAngle);
+				double y2 = event.getY(1);
-		// mAngle = angle;
-		// mMapView.redrawTiles();
-		// }
 
+				double dx = x1 - x2;
+				double dy = y1 - y2;
+
+				double rad = Math.atan2(dy, dx);
+				float angle = (float) Math.toDegrees(rad);
+
+				// focus point relative to center
+				double cx = (mMapView.getWidth() >> 1) - (x1 + x2) / 2;
+				double cy = (mMapView.getHeight() >> 1) - (y1 + y2) / 2;
+				double r = Math.toRadians(angle - mAngle);
+
+				double x = cx * Math.cos(r) + cy * -Math.sin(r) - cx;
+				double y = cx * Math.sin(r) + cy * Math.cos(r) - cy;
+				// Log.d("...", "move " + x + " " + y + " " + cx + " " + cy);
+
+				mMapPosition.rotateMap(angle - mAngle, (float) x, (float) y);
+				mAngle = angle;
+				mMapView.redrawTiles();
+			}
+		}
 		// save the position of the event
 		mPosX = event.getX(pointerIndex);
 		mPosY = event.getY(pointerIndex);
@@ -182,7 +199,7 @@ public class TouchHandler {
 	private boolean onActionUp(MotionEvent motionEvent) {
 		mActivePointerId = INVALID_POINTER_ID;
 		mScaling = false;
-
+		multi = 0;
 		return true;
 	}
 
@@ -400,7 +417,11 @@ public class TouchHandler {
 			mCenterX = mMapView.getWidth() >> 1;
 			mCenterY = mMapView.getHeight() >> 1;
 			mScale = 1;
-			// mMapPosition = mMapView.getMapPosition();
+
+			if (mTimer != null) {
+				mTimer.cancel();
+				mTimer = null;
+			}
 			return true;
 		}
 

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

@@ -428,12 +428,11 @@ public class MapGenerator implements IMapGenerator, IRenderCallback, IMapDatabas
 		mDebugDrawUnmatched = debugSettings.mDrawUnmatchted;
 
 		// fixed now....
-		if (tile.newData || tile.isReady || tile.isCanceled) {
+		if (tile.newData || tile.isReady) {
 			Log.d(TAG, "XXX tile already loaded "
 					+ tile + " "
 					+ tile.newData + " "
-					+ tile.isReady + " "
+					+ tile.isReady + " ");
-					+ tile.isCanceled);
 			return false;
 		}
 

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

@@ -36,7 +36,6 @@ import java.nio.ByteBuffer;
 import java.nio.ByteOrder;
 import java.nio.ShortBuffer;
 import java.util.ArrayList;
-import java.util.Collections;
 
 import javax.microedition.khronos.egl.EGLConfig;
 import javax.microedition.khronos.opengles.GL10;
@@ -47,7 +46,6 @@ import org.mapsforge.android.mapgenerator.JobTile;
 import org.mapsforge.android.rendertheme.RenderTheme;
 import org.mapsforge.android.utils.GlUtils;
 import org.mapsforge.core.MapPosition;
-import org.mapsforge.core.MercatorProjection;
 import org.mapsforge.core.Tile;
 
 import android.opengl.GLES20;
@@ -57,45 +55,11 @@ import android.util.FloatMath;
 import android.util.Log;
 
 public class MapRenderer implements org.mapsforge.android.IMapRenderer {
-	private static final String TAG = "MapRenderer";
 
-	private static final int MB = 1024 * 1024;
+	/**
-	private static final int SHORT_BYTES = 2;
+	 * used for passing tiles to be rendered from TileLoader(Main) to GLThread
-	static final float COORD_MULTIPLIER = 8.0f;
+	 */
-
+	static class TilesData {
-	private static final int MAX_TILES_IN_QUEUE = 40;
-	private static final int CACHE_TILES_MAX = 250;
-	private static final int LIMIT_BUFFERS = 16 * MB;
-
-	private static int CACHE_TILES = CACHE_TILES_MAX;
-
-	private final MapView mMapView;
-	private static ArrayList<JobTile> mJobList;
-	private static ArrayList<VertexBufferObject> mVBOs;
-
-	// all tiles currently referenced
-	private static ArrayList<MapTile> mTiles;
-
-	// tiles that have new data to upload, see passTile()
-	private static ArrayList<MapTile> mTilesLoaded;
-
-	private static int mWidth, mHeight;
-	private static float mAspect;
-
-	// current center tile, values used to check if position has
-	// changed for updating current tile list
-	private static long mTileX, mTileY;
-	private static float mPrevScale;
-	private static byte mPrevZoom;
-
-	private static int rotateBuffers = 2;
-	private static ShortBuffer shortBuffer[];
-	private static short[] mFillCoords;
-
-	// bytes currently loaded in VBOs
-	private static int mBufferMemoryUsage;
-
-	class TilesData {
 		int cnt = 0;
 		final MapTile[] tiles;
 
@@ -104,14 +68,39 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		}
 	}
 
+	private static final String TAG = "MapRenderer";
+
+	private static final int MB = 1024 * 1024;
+	private static final int SHORT_BYTES = 2;
+	static final float COORD_MULTIPLIER = 8.0f;
+
+	private static final int CACHE_TILES_MAX = 200;
+	private static final int LIMIT_BUFFERS = 16 * MB;
+
+	private static int CACHE_TILES = CACHE_TILES_MAX;
+
+	private final MapView mMapView;
+	private static ArrayList<VertexBufferObject> mVBOs;
+
+	private static int mWidth, mHeight;
+	private static float mAspect;
+
+	private static int rotateBuffers = 2;
+	private static ShortBuffer shortBuffer[];
+	private static short[] mFillCoords;
+
+	// bytes currently loaded in VBOs
+	private static int mBufferMemoryUsage;
+
 	private static float[] mMVPMatrix = new float[16];
-	// private static float[] mRotateMatrix = new float[16];
+	private static float[] mRotateMatrix = new float[16];
-	// private static float[] mProjMatrix = new float[16];
+	private static float[] mProjMatrix = new float[16];
+	private static float[] mRotTMatrix = new float[16];
 
 	// newTiles is set in updateVisibleList and swapped
 	// with curTiles on main thread. curTiles is swapped
 	// with drawTiles in onDrawFrame in GL thread.
-	private static TilesData newTiles, curTiles, drawTiles;
+	private static TilesData curTiles, drawTiles;
 
 	// draw position is updated from current position in onDrawFrame
 	// keeping the position and active tiles consistent while drawing
@@ -121,8 +110,6 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 	// changed. used in onDrawFrame to flip curTiles/drawTiles
 	private static boolean mUpdateTiles;
 
-	private static boolean mInitial;
-
 	private float[] mClearColor = null;
 
 	// number of tiles drawn in one frame
@@ -130,6 +117,8 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 
 	private static boolean mUpdateColor = false;
 
+	static Object lock = new Object();
+
 	/**
 	 * @param mapView
 	 *            the MapView
@@ -138,475 +127,52 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		Log.d(TAG, "init MapRenderer");
 
 		mMapView = mapView;
-
-		if (mInitial)
-			return;
-
-		mJobList = new ArrayList<JobTile>();
-		mTiles = new ArrayList<MapTile>();
-		mTilesLoaded = new ArrayList<MapTile>(30);
-
 		Matrix.setIdentityM(mMVPMatrix, 0);
 
-		mInitial = true;
 		mUpdateTiles = false;
-
-		QuadTree.init();
-	}
-
-	private static int updateTileDistances(ArrayList<?> tiles,
-			MapPosition mapPosition) {
-		int h = (Tile.TILE_SIZE >> 1);
-		byte zoom = mapPosition.zoomLevel;
-		long x = (long) mapPosition.x;
-		long y = (long) mapPosition.y;
-
-		int diff;
-		long dx, dy;
-		int cnt = 0;
-
-		// TODO this could need some fixing, and optimization
-		// to consider move/zoom direction
-
-		for (int i = 0, n = tiles.size(); i < n; i++) {
-			JobTile t = (JobTile) tiles.get(i);
-			diff = (t.zoomLevel - zoom);
-			if (t.isActive)
-				cnt++;
-
-			if (diff == 0) {
-				dx = (t.pixelX + h) - x;
-				dy = (t.pixelY + h) - y;
-				// t.distance = ((dx > 0 ? dx : -dx) + (dy > 0 ? dy : -dy)) * 0.25f;
-				t.distance = FloatMath.sqrt((dx * dx + dy * dy)) * 0.25f;
-			} else if (diff > 0) {
-				// tile zoom level is child of current
-
-				if (diff < 3) {
-					dx = ((t.pixelX + h) >> diff) - x;
-					dy = ((t.pixelY + h) >> diff) - y;
-				}
-				else {
-					dx = ((t.pixelX + h) >> (diff >> 1)) - x;
-					dy = ((t.pixelY + h) >> (diff >> 1)) - y;
-				}
-				// t.distance = ((dx > 0 ? dx : -dx) + (dy > 0 ? dy : -dy));
-				t.distance = FloatMath.sqrt((dx * dx + dy * dy));
-
-			} else {
-				// tile zoom level is parent of current
-				dx = ((t.pixelX + h) << -diff) - x;
-				dy = ((t.pixelY + h) << -diff) - y;
-
-				// t.distance = ((dx > 0 ? dx : -dx) + (dy > 0 ? dy : -dy)) * (-diff * 0.5f);
-				t.distance = FloatMath.sqrt((dx * dx + dy * dy)) * (-diff * 0.5f);
-			}
-		}
-		return cnt;
-	}
-
-	private static boolean childIsActive(MapTile t) {
-		MapTile c = null;
-
-		for (int i = 0; i < 4; i++) {
-			if (t.rel.child[i] == null)
-				continue;
-
-			c = t.rel.child[i].tile;
-			if (c != null && c.isActive && !(c.isReady || c.newData))
-				return true;
-		}
-
-		return false;
-	}
-
-	// FIXME still the chance that one jumped two zoomlevels between
-	// cur and draw. should use reference counter instead
-	private static boolean tileInUse(MapTile t) {
-		byte z = mPrevZoom;
-
-		if (t.isActive) {
-			return true;
-
-		} else if (t.zoomLevel == z + 1) {
-			MapTile p = t.rel.parent.tile;
-
-			if (p != null && p.isActive && !(p.isReady || p.newData))
-				return true;
-
-		} else if (t.zoomLevel == z + 2) {
-			MapTile p = t.rel.parent.parent.tile;
-
-			if (p != null && p.isActive && !(p.isReady || p.newData))
-				return true;
-
-		} else if (t.zoomLevel == z - 1) {
-			if (childIsActive(t))
-				return true;
-
-		} else if (t.zoomLevel == z - 2) {
-			for (QuadTree c : t.rel.child) {
-				if (c == null)
-					continue;
-
-				if (c.tile != null && childIsActive(c.tile))
-					return true;
-			}
-		} else if (t.zoomLevel == z - 3) {
-			for (QuadTree c : t.rel.child) {
-				if (c == null)
-					continue;
-
-				for (QuadTree c2 : c.child) {
-					if (c2 == null)
-						continue;
-
-					if (c2.tile != null && childIsActive(c2.tile))
-						return true;
-				}
-			}
-		}
-		return false;
-	}
-
-	private static void limitCache(MapPosition mapPosition, int remove) {
-		int removes = remove;
-
-		int size = mTiles.size();
-
-		// remove orphaned tiles
-		for (int i = 0; i < size;) {
-			MapTile cur = mTiles.get(i);
-			// make sure tile cannot be used by GL or MapWorker Thread
-			if ((!cur.isActive) && (!cur.isLoading) && (!cur.newData)
-					&& (!cur.isReady) && (!tileInUse(cur))) {
-
-				clearTile(cur);
-				mTiles.remove(i);
-				removes--;
-				size--;
-				// Log.d(TAG, "remove empty tile" + cur);
-				continue;
-			}
-			i++;
-		}
-
-		if (removes <= 0)
-			return;
-
-		updateTileDistances(mTiles, mapPosition);
-
-		Log.d(TAG, "remove tiles: " + removes);
-
-		// boolean printAll = false;
-
-		for (int i = 1; i <= removes; i++) {
-
-			MapTile t = mTiles.get(0);
-			int pos = 0;
-
-			for (int j = 1; j < size; j++) {
-				MapTile t2 = mTiles.get(j);
-				if (t2.distance > t.distance) {
-					t = t2;
-					pos = j;
-				}
-			}
-
-			synchronized (t) {
-				if (t.isActive) {
-					// dont remove tile used by renderthread or mapgenerator
-					Log.d(TAG, "X not removing active " + t + " " + t.distance);
-
-					// if (printAll) {
-					// printAll = false;
-					// for (GLMapTile tt : mTiles)
-					// Log.d(TAG, ">>>" + tt + " " + tt.distance);
-					// }
-				} else if ((t.isReady || t.newData) && tileInUse(t)) {
-					// check if this tile could be used as proxy
-					// for not yet drawn active tile
-					Log.d(TAG, "X not removing proxy: " + t + " " + t.distance);
-				} else {
-					if (t.isLoading) {
-						Log.d(TAG, ">>> cancel loading " + t + " " + t.distance);
-						t.isCanceled = true;
-					}
-					mTiles.remove(pos);
-					clearTile(t);
-					size--;
-				}
-			}
-		}
-	}
-
-	private static void limitLoadQueue(int remove) {
-		int size = remove;
-
-		synchronized (mTilesLoaded) {
-
-			// remove uploaded tiles
-			for (int i = 0; i < size;) {
-				MapTile t = mTilesLoaded.get(i);
-				// rel == null means tile is already removed by limitCache
-				if (!t.newData || t.rel == null) {
-					mTilesLoaded.remove(i);
-					size--;
-					continue;
-				}
-				i++;
-			}
-
-			// clear loaded but not used tiles
-			if (size < MAX_TILES_IN_QUEUE)
-				return;
-
-			while (size-- > MAX_TILES_IN_QUEUE - 20) {
-				MapTile t = mTilesLoaded.get(size);
-
-				synchronized (t) {
-					if (t.rel == null) {
-						mTilesLoaded.remove(size);
-						continue;
-					}
-
-					if (tileInUse(t)) {
-						// Log.d(TAG, "keep unused tile data: " + t + " " + t.isActive);
-						continue;
-					}
-
-					mTilesLoaded.remove(size);
-					mTiles.remove(t);
-					// Log.d(TAG, "remove unused tile data: " + t);
-					clearTile(t);
-				}
-			}
-		}
-	}
-
-	private boolean updateVisibleList(MapPosition mapPosition, int zdir) {
-		double x = mapPosition.x;
-		double y = mapPosition.y;
-		byte zoomLevel = mapPosition.zoomLevel;
-		float scale = mapPosition.scale;
-
-		double add = 1.0f / scale;
-		int offsetX = (int) ((mWidth >> 1) * add) + Tile.TILE_SIZE;
-		int offsetY = (int) ((mHeight >> 1) * add) + Tile.TILE_SIZE;
-
-		long pixelRight = (long) x + offsetX;
-		long pixelBottom = (long) y + offsetY;
-		long pixelLeft = (long) x - offsetX;
-		long pixelTop = (long) y - offsetY;
-
-		int tileLeft = MercatorProjection.pixelXToTileX(pixelLeft, zoomLevel);
-		int tileTop = MercatorProjection.pixelYToTileY(pixelTop, zoomLevel);
-		int tileRight = MercatorProjection.pixelXToTileX(pixelRight, zoomLevel);
-		int tileBottom = MercatorProjection.pixelYToTileY(pixelBottom, zoomLevel);
-
-		mJobList.clear();
-		mMapView.addJobs(null);
-
-		int tiles = 0;
-		if (newTiles == null)
-			return false;
-
-		int max = newTiles.tiles.length - 1;
-
-		for (int yy = tileTop; yy <= tileBottom; yy++) {
-			for (int xx = tileLeft; xx <= tileRight; xx++) {
-
-				if (tiles == max)
-					break;
-
-				MapTile tile = QuadTree.getTile(xx, yy, zoomLevel);
-
-				if (tile == null) {
-					tile = new MapTile(xx, yy, zoomLevel);
-
-					QuadTree.add(tile);
-					mTiles.add(tile);
-				}
-
-				newTiles.tiles[tiles++] = tile;
-
-				if (!(tile.isLoading || tile.newData || tile.isReady)) {
-					mJobList.add(tile);
-				}
-
-				if (zdir > 0 && zoomLevel > 0) {
-					// prefetch parent
-					MapTile parent = tile.rel.parent.tile;
-
-					if (parent == null) {
-						parent = new MapTile(xx >> 1, yy >> 1, (byte) (zoomLevel - 1));
-
-						QuadTree.add(parent);
-						mTiles.add(parent);
-					}
-
-					if (!(parent.isLoading || parent.isReady || parent.newData)) {
-						if (!mJobList.contains(parent))
-							mJobList.add(parent);
-					}
-				}
-			}
-		}
-
-		newTiles.cnt = tiles;
-
-		// pass new tile list to glThread
-		synchronized (this) {
-			for (int i = 0; i < curTiles.cnt; i++) {
-				boolean found = false;
-
-				for (int j = 0; j < drawTiles.cnt && !found; j++)
-					if (curTiles.tiles[i] == drawTiles.tiles[j])
-						found = true;
-
-				for (int j = 0; j < newTiles.cnt && !found; j++)
-					if (curTiles.tiles[i] == newTiles.tiles[j])
-						found = true;
-
-				if (!found)
-					curTiles.tiles[i].isActive = false;
-			}
-
-			for (int i = 0; i < tiles; i++)
-				newTiles.tiles[i].isActive = true;
-
-			TilesData tmp = curTiles;
-			curTiles = newTiles;
-			curTiles.cnt = tiles;
-			newTiles = tmp;
-
-			mCurPosition = mapPosition;
-
-			mUpdateTiles = true;
-		}
-
-		if (mJobList.size() > 0) {
-			updateTileDistances(mJobList, mapPosition);
-			Collections.sort(mJobList);
-			mMapView.addJobs(mJobList);
-		}
-
-		return true;
-	}
-
-	private static void clearTile(MapTile t) {
-		t.newData = false;
-		t.isLoading = false;
-		t.isReady = false;
-
-		LineLayers.clear(t.lineLayers);
-		PolygonLayers.clear(t.polygonLayers);
-
-		t.labels = null;
-		t.lineLayers = null;
-		t.polygonLayers = null;
-
-		if (t.vbo != null) {
-			synchronized (mVBOs) {
-				mVBOs.add(t.vbo);
-			}
-			t.vbo = null;
-		}
-
-		QuadTree.remove(t);
 	}
 
 	/**
 	 * called by MapView when position or map settings changes
 	 */
 	@Override
-	public synchronized void redrawTiles(boolean clear) {
+	public void redrawTiles(boolean clear) {
-		boolean changedPos = false;
+		TileLoader.redrawTiles(clear);
-		boolean changedZoom = false;
-		MapPosition mapPosition = mMapView.getMapPosition().getMapPosition();
-
-		if (mapPosition == null) {
-			Log.d(TAG, ">>> no map position");
-			return;
 	}
 
-		if (clear) {
+	static void updatePosition(MapPosition mapPosition) {
-			mInitial = true;
+		// synchronized (MapRenderer.lock) {
-			synchronized (this) {
-
-				for (MapTile t : mTiles)
-					clearTile(t);
-
-				mTiles.clear();
-				mTilesLoaded.clear();
-				QuadTree.init();
-				curTiles.cnt = 0;
-				mBufferMemoryUsage = 0;
-			}
-		}
-
-		byte zoomLevel = mapPosition.zoomLevel;
-		float scale = mapPosition.scale;
-
-		long tileX = MercatorProjection.pixelXToTileX(mapPosition.x, zoomLevel)
-				* Tile.TILE_SIZE;
-		long tileY = MercatorProjection.pixelYToTileY(mapPosition.y, zoomLevel)
-				* Tile.TILE_SIZE;
-
-		int zdir = 0;
-		if (mInitial || mPrevZoom != zoomLevel) {
-			changedZoom = true;
-			mPrevScale = scale;
-		}
-		else if (tileX != mTileX || tileY != mTileY) {
-			if (mPrevScale - scale > 0 && scale > 1.2)
-				zdir = 1;
-			mPrevScale = scale;
-			changedPos = true;
-		}
-		else if (mPrevScale - scale > 0.2 || mPrevScale - scale < -0.2) {
-			if (mPrevScale - scale > 0 && scale > 1.2)
-				zdir = 1;
-			mPrevScale = scale;
-			changedPos = true;
-		}
-
-		if (mInitial) {
 		mCurPosition = mapPosition;
-			mInitial = false;
+		// }
 	}
-		mTileX = tileX;
-		mTileY = tileY;
-		mPrevZoom = zoomLevel;
 
-		if (changedZoom) {
+	static TilesData updateTiles(MapPosition mapPosition, TilesData tiles) {
-			// need to update visible list first when zoom level changes
+		synchronized (MapRenderer.lock) {
-			// as scaling is relative to the tiles of current zoom-level
+
-			updateVisibleList(mapPosition, 0);
-		} else {
-			// pass new position to glThread
-			synchronized (this) {
-				// do not change position while drawing
 			mCurPosition = mapPosition;
+
+			for (int i = 0; i < curTiles.cnt; i++)
+				curTiles.tiles[i].isActive = false;
+
+			TilesData tmp = curTiles;
+			curTiles = tiles;
+
+			for (int i = 0; i < curTiles.cnt; i++)
+				curTiles.tiles[i].isActive = true;
+
+			for (int j = 0; j < drawTiles.cnt; j++)
+				drawTiles.tiles[j].isActive = true;
+
+			mUpdateTiles = true;
+
+			return tmp;
 		}
 	}
 
-		if (!MapView.debugFrameTime)
+	static void addVBO(VertexBufferObject vbo) {
-			mMapView.requestRender();
+		synchronized (mVBOs) {
-
+			mVBOs.add(vbo);
-		if (changedPos)
-			updateVisibleList(mapPosition, zdir);
-
-		if (changedPos || changedZoom) {
-			int remove = mTiles.size() - CACHE_TILES;
-			if (remove > 10)
-				limitCache(mapPosition, remove);
 		}
-
-		int size = mTilesLoaded.size();
-		if (size > MAX_TILES_IN_QUEUE)
-			limitLoadQueue(size);
-
 	}
 
 	/**
@@ -616,11 +182,10 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 	public synchronized boolean passTile(JobTile jobTile) {
 		MapTile tile = (MapTile) jobTile;
 
-		if (tile.isCanceled) {
+		if (!tile.isLoading) {
 			// no one should be able to use this tile now, mapgenerator passed it,
 			// glthread does nothing until newdata is set.
 			Log.d(TAG, "passTile: canceled " + tile);
-			tile.isLoading = false;
 			return true;
 		}
 
@@ -644,9 +209,7 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		if (!MapView.debugFrameTime)
 			mMapView.requestRender();
 
-		synchronized (mTilesLoaded) {
+		TileLoader.addTileLoaded(tile);
-			mTilesLoaded.add(0, tile);
-		}
 
 		return true;
 	}
@@ -655,9 +218,31 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 	// ... asus has just 16 bit?!
 	// private static final float depthStep = 0.00000011920928955078125f;
 
+	private static boolean mRotate = false;
+
 	private static void setMatrix(MapTile tile, float div, int offset) {
 		float x, y, scale;
 
+		if (mRotate) {
+			scale = (float) (1.0 * mDrawPosition.scale / (mHeight * div));
+			x = (float) (tile.pixelX - mDrawPosition.x * div);
+			y = (float) (tile.pixelY - mDrawPosition.y * div);
+
+			Matrix.setIdentityM(mMVPMatrix, 0);
+
+			Matrix.scaleM(mMVPMatrix, 0, scale / COORD_MULTIPLIER,
+					scale / COORD_MULTIPLIER, 1);
+
+			Matrix.translateM(mMVPMatrix, 0,
+					x * COORD_MULTIPLIER,
+					-(y + Tile.TILE_SIZE) * COORD_MULTIPLIER,
+					-1 + offset * 0.01f);
+
+			Matrix.multiplyMM(mMVPMatrix, 0, mRotateMatrix, 0, mMVPMatrix, 0);
+
+			Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0);
+		}
+		else {
 			scale = (float) (2.0 * mDrawPosition.scale / (mHeight * div));
 			x = (float) (tile.pixelX - mDrawPosition.x * div);
 			y = (float) (tile.pixelY - mDrawPosition.y * div);
@@ -668,24 +253,11 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 			mMVPMatrix[14] = -1 + offset * 0.01f; // depthStep; // 0.01f;
 			mMVPMatrix[0] = scale * mAspect / COORD_MULTIPLIER;
 			mMVPMatrix[5] = scale / COORD_MULTIPLIER;
-
+		}
-		// Matrix.setIdentityM(mMVPMatrix, 0);
-		//
-		// Matrix.scaleM(mMVPMatrix, 0, scale / COORD_MULTIPLIER,
-		// scale / COORD_MULTIPLIER, 1);
-		//
-		// Matrix.translateM(mMVPMatrix, 0, x * COORD_MULTIPLIER, -(y + Tile.TILE_SIZE)
-		// * COORD_MULTIPLIER, 0);
-		//
-		// Matrix.setRotateM(mRotateMatrix, 0, mDrawPosition.angle, 0, 0, 1);
-		//
-		// Matrix.multiplyMM(mMVPMatrix, 0, mRotateMatrix, 0, mMVPMatrix, 0);
-		//
-		// Matrix.multiplyMM(mMVPMatrix, 0, mProjMatrix, 0, mMVPMatrix, 0);
 
 	}
 
-	private static boolean setTileScissor(MapTile tile, float div) {
+	private static boolean isVisible(MapTile tile, float div) {
 		double dx, dy, scale;
 
 		if (div == 0) {
@@ -773,8 +345,6 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 						+ sbuf.limit() + " "
 						+ sbuf.remaining() + " "
 						+ PolygonLayers.sizeOf(tile.polygonLayers) + " "
-						+ tile.isCanceled + " "
-						+ tile.isLoading + " "
 						+ tile.rel);
 
 			tile.lineOffset *= SHORT_BYTES;
@@ -790,7 +360,6 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 						+ sbuf.limit() + " "
 						+ sbuf.remaining() + " "
 						+ LineLayers.sizeOf(tile.lineLayers)
-						+ tile.isCanceled + " "
 						+ tile.isLoading + " "
 						+ tile.rel);
 
@@ -864,6 +433,8 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		if (MapView.debugFrameTime)
 			start = SystemClock.uptimeMillis();
 
+		mRotate = mMapView.enableRotation;
+
 		if (mUpdateColor && mClearColor != null) {
 			glClearColor(mClearColor[0], mClearColor[1], mClearColor[2], mClearColor[3]);
 			mUpdateColor = false;
@@ -871,7 +442,7 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 
 		GLES20.glDepthMask(true);
 
-		// Note: i have the impression it is faster to also clear the
+		// Note: having the impression it is faster to also clear the
 		// stencil buffer even when not needed. probaly otherwise it
 		// is masked out from the depth buffer as they share the same
 		// memory region afaik
@@ -879,11 +450,8 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 				| GLES20.GL_DEPTH_BUFFER_BIT
 				| GLES20.GL_STENCIL_BUFFER_BIT);
 
-		if (mInitial)
-			return;
-
 		// get position and current tiles to draw
-		synchronized (this) {
+		synchronized (MapRenderer.lock) {
 			mDrawPosition = mCurPosition;
 
 			if (mUpdateTiles) {
@@ -904,7 +472,7 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		for (int i = 0; i < tileCnt; i++) {
 			MapTile tile = tiles[i];
 
-			if (!setTileScissor(tile, 1))
+			if (!isVisible(tile, 1))
 				continue;
 
 			if (tile.texture == null && TextRenderer.drawToTexture(tile))
@@ -939,6 +507,11 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		if (updateTextures > 0)
 			TextRenderer.compileTextures();
 
+		if (mRotate) {
+			Matrix.setRotateM(mRotateMatrix, 0, mDrawPosition.angle, 0, 0, 1);
+			Matrix.transposeM(mRotTMatrix, 0, mRotateMatrix, 0);
+		}
+
 		GLES20.glEnable(GLES20.GL_DEPTH_TEST);
 
 		for (int i = 0; i < tileCnt; i++) {
@@ -970,10 +543,13 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		if (scale < 1)
 			scale = 1;
 
+		// scale = (1.0f * mDrawPosition.scale / mHeight);
+		// TextRenderer.beginDraw(scale);
+
 		if (z >= MapGenerator.STROKE_MAX_ZOOM_LEVEL)
-			TextRenderer.beginDraw(FloatMath.sqrt(s) / scale);
+			TextRenderer.beginDraw(FloatMath.sqrt(s) / scale, mRotTMatrix);
 		else
-			TextRenderer.beginDraw(s);
+			TextRenderer.beginDraw(s, mRotTMatrix);
 
 		for (int i = 0; i < tileCnt; i++) {
 			if (!tiles[i].isVisible || tiles[i].texture == null)
@@ -1055,7 +631,7 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 			if (c == null)
 				continue;
 
-			if (!setTileScissor(c, 2)) {
+			if (!isVisible(c, 2)) {
 				drawn++;
 				continue;
 			}
@@ -1107,16 +683,13 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 	@Override
 	public void onSurfaceChanged(GL10 glUnused, int width, int height) {
 		Log.d(TAG, "SurfaceChanged:" + width + " " + height);
-		mTilesLoaded.clear();
+		// mTilesLoaded.clear();
-		mTiles.clear();
+		// mTiles.clear();
-
-		ShortPool.init();
-		QuadTree.init();
 		// LineLayers.finish();
 
-		drawTiles = newTiles = curTiles = null;
+		drawTiles = curTiles = null;
 		mBufferMemoryUsage = 0;
-		mInitial = true;
+		// mInitial = true;
 
 		if (width <= 0 || height <= 0)
 			return;
@@ -1127,22 +700,20 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		mHeight = height;
 		mAspect = (float) height / width;
 
-		// Matrix.orthoM(mProjMatrix, 0, -0.5f / mAspect, 0.5f / mAspect, -0.5f, 0.5f, -1, 1);
+		Matrix.orthoM(mProjMatrix, 0, -0.5f / mAspect, 0.5f / mAspect, -0.5f, 0.5f, -1, 1);
 
 		glViewport(0, 0, width, height);
 
 		int numTiles = (mWidth / (Tile.TILE_SIZE / 2) + 2)
 				* (mHeight / (Tile.TILE_SIZE / 2) + 2);
 
+		TileLoader.init(mMapView, width, height, numTiles);
+
 		drawTiles = new TilesData(numTiles);
-		newTiles = new TilesData(numTiles);
 		curTiles = new TilesData(numTiles);
 
-		// Log.d(TAG, "using: " + numTiles + " + cache: " + CACHE_TILES);
-		GlUtils.checkGlError("pre glGenBuffers");
-
 		// Set up vertex buffer objects
-		int numVBO = (CACHE_TILES + numTiles);
+		int numVBO = (CACHE_TILES + (numTiles * 2));
 		int[] mVboIds = new int[numVBO];
 		glGenBuffers(numVBO, mVboIds, 0);
 		GlUtils.checkGlError("glGenBuffers");
@@ -1155,8 +726,6 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		// Set up textures
 		TextRenderer.init(numTiles);
 
-		// glDisable(GL_DITHER);
-
 		if (mClearColor != null) {
 			glClearColor(mClearColor[0], mClearColor[1],
 					mClearColor[2], mClearColor[3]);
@@ -1199,10 +768,6 @@ public class MapRenderer implements org.mapsforge.android.IMapRenderer {
 		mFillCoords[6] = max;
 		mFillCoords[7] = min;
 
-		// int i[] = new int[1];
-		// GLES20.glGetIntegerv(GLES20.GL_, i, 0);
-		// Log.d(TAG, " >>>> " + i[0]);
-
 		LineLayers.init();
 		PolygonLayers.init();
 	}

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

@@ -19,25 +19,51 @@ import org.mapsforge.android.mapgenerator.JobTile;
 class MapTile extends JobTile {
 	byte lastDraw = 0;
 
-	// VBO layout:
+	/**
-	// 16 bytes fill coordinates
+	 *  VBO layout:
-	// n bytes polygon vertices
+	 * - 16 bytes fill coordinates
-	// m bytes lines vertices
+	 * - n bytes polygon vertices
+	 * - m bytes lines vertices
+	 */
 	VertexBufferObject vbo;
 
-	// polygonOffset in vbo is always 16 bytes,
+	/**
+	 *  polygonOffset in vbo is always 16 bytes,
+	 */
 	int lineOffset;
 
 	TextTexture texture;
 
-	// Tile data set by MapGenerator:
+	/**
+	 *  Tile data set by MapGenerator:
+	 */
 	LineLayer lineLayers;
 	PolygonLayer polygonLayers;
 	TextItem labels;
 
+	/**
+	 * tile has new data to upload to gl
+	 */
 	boolean newData;
 
-	// pointer to access relatives in TileTree
+	/**
+	 * tile is loaded and ready for drawing.
+	 */
+	boolean isReady;
+
+	/**
+	 * tile is in view region.
+	 */
+	boolean isVisible;
+
+	/**
+	 * tile is used by render thread. set by updateVisibleList (main thread).
+	 */
+	boolean isActive;
+
+	/**
+	 *  pointer to access relatives in TileTree
+	 */
 	QuadTree rel;
 
 	MapTile(int tileX, int tileY, byte zoomLevel) {

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

@@ -111,14 +111,39 @@ class Shaders {
 			+ "attribute vec4 vertex;"
 			+ "attribute vec2 tex_coord;"
 			+ "uniform mat4 mvp;"
+			+ "uniform mat4 rotation;"
 			+ "uniform float scale;"
 			+ "varying vec2 tex_c;"
 			+ "const vec2 div = vec2(1.0/4096.0,1.0/2048.0);"
 			+ "void main() {"
-			+ "   gl_Position = mvp * vec4(vertex.xy + (vertex.zw / scale), 0.0, 1.0);"
+			+ " if (mod(vertex.x, 2.0) == 0.0){"
+			+ "       gl_Position = mvp * vec4(vertex.xy + vertex.zw / scale, 0.0, 1.0);"
+			+ "  } else {"
+			+ "    vec4 dir = rotation * vec4(vertex.zw / scale, 0.0, 1.0);"
+			+ "    gl_Position = mvp * vec4(vertex.xy + dir.xy, 0.0, 1.0);"
+			+ "  }"
 			+ "  tex_c = tex_coord * div;"
 			+ "}";
 
+	// final static String textVertexShader = ""
+	// + "precision highp float; "
+	// + "attribute vec4 vertex;"
+	// + "attribute vec2 tex_coord;"
+	// + "uniform mat4 mvp;"
+	// + "uniform mat4 rotation;"
+	// + "uniform float scale;"
+	// + "varying vec2 tex_c;"
+	// + "const vec2 div = vec2(1.0/4096.0,1.0/2048.0);"
+	// + "void main() {"
+	// + " if (mod(vertex.x, 2.0) == 0.0){"
+	// + "       gl_Position = mvp * vec4(vertex.xy + vertex.zw / scale, 0.0, 1.0);"
+	// + "  } else {"
+	// + "    vec4 dir = rotation * vec4(vertex.zw / scale, 0.0, 1.0);"
+	// + "    gl_Position = mvp * vec4(vertex.xy + dir.xy, 0.0, 1.0);"
+	// + "  }"
+	// + "  tex_c = tex_coord * div;"
+	// + "}";
+
 	final static String textFragmentShader = ""
 			+ "precision highp float;"
 			+ "uniform sampler2D tex;"

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

@@ -32,7 +32,9 @@ import android.util.Log;
 public class TextRenderer {
 	private final static int TEXTURE_WIDTH = 512;
 	private final static int TEXTURE_HEIGHT = 256;
-	private final static float SCALE_FACTOR = 8.0f;
+	private final static float SCALE = 8.0f;
+	private final static int LBIT_MASK = 0xfffffffe;
+	private final static int L2BIT_MASK = 0xfffffffc;
 
 	final static int INDICES_PER_SPRITE = 6;
 	final static int VERTICES_PER_SPRITE = 4;
@@ -53,6 +55,7 @@ public class TextRenderer {
 
 	private static int mTextProgram;
 	private static int hTextUVPMatrix;
+	private static int hTextRotationMatrix;
 	private static int hTextVertex;
 	private static int hTextScale;
 	private static int hTextTextureCoord;
@@ -99,6 +102,8 @@ public class TextRenderer {
 				Shaders.textFragmentShader);
 
 		hTextUVPMatrix = GLES20.glGetUniformLocation(mTextProgram, "mvp");
+		hTextRotationMatrix = GLES20.glGetUniformLocation(mTextProgram, "rotation");
+
 		hTextVertex = GLES20.glGetAttribLocation(mTextProgram, "vertex");
 		hTextScale = GLES20.glGetUniformLocation(mTextProgram, "scale");
 		hTextTextureCoord = GLES20.glGetAttribLocation(mTextProgram, "tex_coord");
@@ -283,10 +288,10 @@ public class TextRenderer {
 			float hh = height / 2.0f;
 
 			if (t.caption != null) {
-				x1 = x3 = (short) (SCALE_FACTOR * (-hw));
+				x1 = x3 = (short) (SCALE * (-hw));
-				y1 = y3 = (short) (SCALE_FACTOR * (-hh));
+				y1 = y3 = (short) (SCALE * (-hh));
-				x2 = x4 = (short) (SCALE_FACTOR * (hw));
+				x2 = x4 = (short) (SCALE * (hw));
-				y2 = y4 = (short) (SCALE_FACTOR * (hh));
+				y2 = y4 = (short) (SCALE * (hh));
 			}
 			else {
 				float vx = t.x1 - t.x2;
@@ -298,26 +303,45 @@ public class TextRenderer {
 				float ux = -vy;
 				float uy = vx;
 
-				x1 = (short) (SCALE_FACTOR * (vx * hw + ux * hh));
+				// int dx = (int) (vx * SCALE) & L2BIT_MASK;
-				y1 = (short) (SCALE_FACTOR * (vy * hw + uy * hh));
+				// int dy = (int) (vy * SCALE) & L2BIT_MASK;
+				//
+				// x1 = (short) dx;
+				// y1 = (short) dy;
+				//
+				// x2 = (short) (dx | 1);
+				// y3 = (short) (dy | 1);
+				//
+				// x4 = (short) (dx | 3);
+				// y4 = (short) (dy | 3);
+				//
+				// x3 = (short) (dx | 2);
+				// y2 = (short) (dy | 2);
 
-				x2 = (short) (SCALE_FACTOR * (-vx * hw + ux * hh));
+				x1 = (short) (SCALE * (vx * hw + ux * hh));
-				y3 = (short) (SCALE_FACTOR * (-vy * hw + uy * hh));
+				y1 = (short) (SCALE * (vy * hw + uy * hh));
-
+				x2 = (short) (SCALE * (-vx * hw + ux * hh));
-				x4 = (short) (SCALE_FACTOR * (-vx * hw - ux * hh));
+				y3 = (short) (SCALE * (-vy * hw + uy * hh));
-				y4 = (short) (SCALE_FACTOR * (-vy * hw - uy * hh));
+				x4 = (short) (SCALE * (-vx * hw - ux * hh));
-
+				y4 = (short) (SCALE * (-vy * hw - uy * hh));
-				x3 = (short) (SCALE_FACTOR * (vx * hw - ux * hh));
+				x3 = (short) (SCALE * (vx * hw - ux * hh));
-				y2 = (short) (SCALE_FACTOR * (vy * hw - uy * hh));
+				y2 = (short) (SCALE * (vy * hw - uy * hh));
 
 			}
-			short u1 = (short) (SCALE_FACTOR * x);
+			short u1 = (short) (SCALE * x);
-			short v1 = (short) (SCALE_FACTOR * y);
+			short v1 = (short) (SCALE * y);
-			short u2 = (short) (SCALE_FACTOR * (x + width));
+			short u2 = (short) (SCALE * (x + width));
-			short v2 = (short) (SCALE_FACTOR * (y + height));
+			short v2 = (short) (SCALE * (y + height));
+
+			// pack caption/way-text info in lowest bit
+			short tx;
+			if (t.caption == null)
+				tx = (short) ((int) (SCALE * t.x) & LBIT_MASK | 0);
+			else
+				tx = (short) ((int) (SCALE * t.x) & LBIT_MASK | 1);
+
+			short ty = (short) (SCALE * t.y);
 
-			short tx = (short) (SCALE_FACTOR * t.x);
-			short ty = (short) (SCALE_FACTOR * t.y);
 			// top-left
 			buf[pos++] = tx;
 			buf[pos++] = ty;
@@ -366,7 +390,7 @@ public class TextRenderer {
 		GLUtils.texSubImage2D(GLES20.GL_TEXTURE_2D, 0, 0, 0, mBitmap,
 				mBitmapFormat, mBitmapType);
 
-		GLES20.glFlush();
+		// GLES20.glFlush();
 
 		return true;
 	}
@@ -397,13 +421,14 @@ public class TextRenderer {
 				mShortBuffer);
 	}
 
-	static void beginDraw(float scale) {
+	static void beginDraw(float scale, float[] rotation) {
 		GLES20.glUseProgram(mTextProgram);
 
 		GLES20.glEnableVertexAttribArray(hTextTextureCoord);
 		GLES20.glEnableVertexAttribArray(hTextVertex);
 
 		GLES20.glUniform1f(hTextScale, scale);
+		GLES20.glUniformMatrix4fv(hTextRotationMatrix, 1, false, rotation, 0);
 
 		if (debug) {
 			GLES20.glBindBuffer(GLES20.GL_ARRAY_BUFFER, 0);

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

@@ -0,0 +1,530 @@
+/*
+ * 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.android.glrenderer;
+
+import java.util.ArrayList;
+import java.util.Collections;
+
+import org.mapsforge.android.MapView;
+import org.mapsforge.android.glrenderer.MapRenderer.TilesData;
+import org.mapsforge.android.mapgenerator.JobTile;
+import org.mapsforge.core.MapPosition;
+import org.mapsforge.core.MercatorProjection;
+import org.mapsforge.core.Tile;
+
+import android.util.FloatMath;
+import android.util.Log;
+
+// for lack of a better name... maybe TileManager?
+
+/**
+ * Update list of visible tiles and passes them to MapRenderer, when not available tiles are created and added to
+ * JobQueue (mapView.addJobs) for loading by MapGenerator class
+ */
+
+public class TileLoader {
+	private static final String TAG = "TileLoader";
+
+	private static final int MAX_TILES_IN_QUEUE = 40;
+	private static final int CACHE_TILES_MAX = 200;
+	// private static final int MB = 1024 * 1024;
+	// private static final int LIMIT_BUFFERS = 16 * MB;
+
+	private static int CACHE_TILES = CACHE_TILES_MAX;
+
+	private static MapView mMapView;
+
+	private static ArrayList<JobTile> mJobList;
+	// private static ArrayList<VertexBufferObject> mVBOs;
+
+	// all tiles currently referenced
+	private static ArrayList<MapTile> mTiles;
+	// private static ArrayList<MapTile> mTilesActive;
+	// tiles that have new data to upload, see passTile()
+	private static ArrayList<MapTile> mTilesLoaded;
+
+	// current center tile, values used to check if position has
+	// changed for updating current tile list
+	private static long mTileX, mTileY;
+	private static float mPrevScale;
+	private static byte mPrevZoom;
+	private static boolean mInitial;
+
+	// private static MapPosition mCurPosition, mDrawPosition;
+	private static int mWidth, mHeight;
+
+	private static TilesData newTiles; // , curTiles, drawTiles;
+
+	static void init(MapView mapView, int w, int h, int numTiles) {
+		mMapView = mapView;
+
+		ShortPool.init();
+		QuadTree.init();
+
+		mJobList = new ArrayList<JobTile>();
+		mTiles = new ArrayList<MapTile>();
+		mTilesLoaded = new ArrayList<MapTile>(30);
+
+		mInitial = true;
+		mWidth = w;
+		mHeight = h;
+
+		newTiles = new TilesData(numTiles);
+	}
+
+	static void redrawTiles(boolean clear) {
+
+		boolean changedPos = false;
+		boolean changedZoom = false;
+		MapPosition mapPosition = mMapView.getMapPosition().getMapPosition();
+
+		if (mapPosition == null) {
+			Log.d(TAG, ">>> no map position");
+			return;
+		}
+
+		if (clear) {
+			mInitial = true;
+			synchronized (MapRenderer.lock) {
+
+				for (MapTile t : mTiles)
+					clearTile(t);
+
+				mTiles.clear();
+				mTilesLoaded.clear();
+				QuadTree.init();
+				// curTiles.cnt = 0;
+				// mBufferMemoryUsage = 0;
+			}
+		}
+
+		byte zoomLevel = mapPosition.zoomLevel;
+		float scale = mapPosition.scale;
+
+		long tileX = MercatorProjection.pixelXToTileX(mapPosition.x, zoomLevel)
+				* Tile.TILE_SIZE;
+		long tileY = MercatorProjection.pixelYToTileY(mapPosition.y, zoomLevel)
+				* Tile.TILE_SIZE;
+
+		int zdir = 0;
+		if (mInitial || mPrevZoom != zoomLevel) {
+			changedZoom = true;
+			mPrevScale = scale;
+		}
+		else if (tileX != mTileX || tileY != mTileY) {
+			if (mPrevScale - scale > 0 && scale > 1.2)
+				zdir = 1;
+			mPrevScale = scale;
+			changedPos = true;
+		}
+		else if (mPrevScale - scale > 0.2 || mPrevScale - scale < -0.2) {
+			if (mPrevScale - scale > 0 && scale > 1.2)
+				zdir = 1;
+			mPrevScale = scale;
+			changedPos = true;
+		}
+
+		if (mInitial) {
+			// mCurPosition = mapPosition;
+			mInitial = false;
+		}
+
+		mTileX = tileX;
+		mTileY = tileY;
+		mPrevZoom = zoomLevel;
+
+		if (changedZoom) {
+			// need to update visible list first when zoom level changes
+			// as scaling is relative to the tiles of current zoom-level
+			updateVisibleList(mapPosition, 0);
+		} else {
+			// pass new position to glThread
+
+			MapRenderer.updatePosition(mapPosition);
+
+			// synchronized () {
+			// // do not change position while drawing
+			// mCurPosition = mapPosition;
+			// }
+		}
+
+		if (!MapView.debugFrameTime)
+			mMapView.requestRender();
+
+		if (changedPos)
+			updateVisibleList(mapPosition, zdir);
+
+		if (changedPos || changedZoom) {
+			int remove = mTiles.size() - CACHE_TILES;
+			if (remove > 50)
+				limitCache(mapPosition, remove);
+		}
+
+		int size = mTilesLoaded.size();
+		if (size > MAX_TILES_IN_QUEUE)
+			limitLoadQueue(size);
+
+	}
+
+	private static boolean updateVisibleList(MapPosition mapPosition, int zdir) {
+		double x = mapPosition.x;
+		double y = mapPosition.y;
+		byte zoomLevel = mapPosition.zoomLevel;
+		float scale = mapPosition.scale;
+
+		double add = 1.0f / scale;
+		int offsetX = (int) ((mWidth >> 1) * add) + Tile.TILE_SIZE;
+		int offsetY = (int) ((mHeight >> 1) * add) + Tile.TILE_SIZE;
+
+		long pixelRight = (long) x + offsetX;
+		long pixelBottom = (long) y + offsetY;
+		long pixelLeft = (long) x - offsetX;
+		long pixelTop = (long) y - offsetY;
+
+		int tileLeft = MercatorProjection.pixelXToTileX(pixelLeft, zoomLevel);
+		int tileTop = MercatorProjection.pixelYToTileY(pixelTop, zoomLevel);
+		int tileRight = MercatorProjection.pixelXToTileX(pixelRight, zoomLevel);
+		int tileBottom = MercatorProjection.pixelYToTileY(pixelBottom, zoomLevel);
+
+		mJobList.clear();
+
+		// set non processed tiles to isLoading == false
+		mMapView.addJobs(null);
+
+		int tiles = 0;
+		if (newTiles == null)
+			return false;
+
+		int max = newTiles.tiles.length - 1;
+
+		for (int yy = tileTop; yy <= tileBottom; yy++) {
+			for (int xx = tileLeft; xx <= tileRight; xx++) {
+
+				if (tiles == max)
+					break;
+
+				MapTile tile = QuadTree.getTile(xx, yy, zoomLevel);
+
+				if (tile == null) {
+					tile = new MapTile(xx, yy, zoomLevel);
+
+					QuadTree.add(tile);
+					mTiles.add(tile);
+				}
+
+				newTiles.tiles[tiles++] = tile;
+
+				if (!(tile.isLoading || tile.newData || tile.isReady)) {
+					mJobList.add(tile);
+				}
+
+				if (zdir > 0 && zoomLevel > 0) {
+					// prefetch parent
+					MapTile parent = tile.rel.parent.tile;
+
+					if (parent == null) {
+						parent = new MapTile(xx >> 1, yy >> 1, (byte) (zoomLevel - 1));
+
+						QuadTree.add(parent);
+						mTiles.add(parent);
+					}
+
+					if (!(parent.isLoading || parent.isReady || parent.newData)) {
+						if (!mJobList.contains(parent))
+							mJobList.add(parent);
+					}
+				}
+			}
+		}
+
+		// pass new tile list to glThread
+		newTiles.cnt = tiles;
+		newTiles = MapRenderer.updateTiles(mapPosition, newTiles);
+
+		// pass new tile list to glThread
+		// synchronized (MapRenderer.lock) {
+		//
+		// for (int i = 0; i < curTiles.cnt; i++)
+		// curTiles.tiles[i].isActive = false;
+		//
+		// for (int j = 0; j < drawTiles.cnt; j++)
+		// drawTiles.tiles[j].isActive = true;
+		//
+		// for (int i = 0; i < tiles; i++)
+		// newTiles.tiles[i].isActive = true;
+		//
+		// TilesData tmp = curTiles;
+		// curTiles = newTiles;
+		// curTiles.cnt = tiles;
+		// newTiles = tmp;
+		//
+		// mCurPosition = mapPosition;
+		//
+		// mUpdateTiles = true;
+		// }
+
+		if (mJobList.size() > 0) {
+			updateTileDistances(mJobList, mapPosition);
+			Collections.sort(mJobList);
+			mMapView.addJobs(mJobList);
+		}
+
+		return true;
+	}
+
+	private static void clearTile(MapTile t) {
+		t.newData = false;
+		t.isLoading = false;
+		t.isReady = false;
+
+		LineLayers.clear(t.lineLayers);
+		PolygonLayers.clear(t.polygonLayers);
+
+		t.labels = null;
+		t.lineLayers = null;
+		t.polygonLayers = null;
+
+		if (t.vbo != null) {
+			MapRenderer.addVBO(t.vbo);
+			t.vbo = null;
+		}
+
+		QuadTree.remove(t);
+	}
+
+	private static boolean childIsActive(MapTile t) {
+		MapTile c = null;
+
+		for (int i = 0; i < 4; i++) {
+			if (t.rel.child[i] == null)
+				continue;
+
+			c = t.rel.child[i].tile;
+			if (c != null && c.isActive && !(c.isReady || c.newData))
+				return true;
+		}
+
+		return false;
+	}
+
+	// FIXME still the chance that one jumped two zoomlevels between
+	// cur and draw. should use reference counter instead
+	private static boolean tileInUse(MapTile t) {
+		byte z = mPrevZoom;
+
+		if (t.isActive) {
+			return true;
+
+		} else if (t.zoomLevel == z + 1) {
+			MapTile p = t.rel.parent.tile;
+
+			if (p != null && p.isActive && !(p.isReady || p.newData))
+				return true;
+
+		} else if (t.zoomLevel == z + 2) {
+			MapTile p = t.rel.parent.parent.tile;
+
+			if (p != null && p.isActive && !(p.isReady || p.newData))
+				return true;
+
+		} else if (t.zoomLevel == z - 1) {
+			if (childIsActive(t))
+				return true;
+
+		} else if (t.zoomLevel == z - 2) {
+			for (QuadTree c : t.rel.child) {
+				if (c == null)
+					continue;
+
+				if (c.tile != null && childIsActive(c.tile))
+					return true;
+			}
+		} else if (t.zoomLevel == z - 3) {
+			for (QuadTree c : t.rel.child) {
+				if (c == null)
+					continue;
+
+				for (QuadTree c2 : c.child) {
+					if (c2 == null)
+						continue;
+
+					if (c2.tile != null && childIsActive(c2.tile))
+						return true;
+				}
+			}
+		}
+		return false;
+	}
+
+	private static void updateTileDistances(ArrayList<?> tiles,
+			MapPosition mapPosition) {
+		int h = (Tile.TILE_SIZE >> 1);
+		byte zoom = mapPosition.zoomLevel;
+		long x = (long) mapPosition.x;
+		long y = (long) mapPosition.y;
+
+		int diff;
+		long dx, dy;
+
+		// TODO this could need some fixing, and optimization
+		// to consider move/zoom direction
+
+		for (int i = 0, n = tiles.size(); i < n; i++) {
+			JobTile t = (JobTile) tiles.get(i);
+			diff = (t.zoomLevel - zoom);
+
+			if (diff == 0) {
+				dx = (t.pixelX + h) - x;
+				dy = (t.pixelY + h) - y;
+				// t.distance = ((dx > 0 ? dx : -dx) + (dy > 0 ? dy : -dy)) * 0.25f;
+				t.distance = FloatMath.sqrt((dx * dx + dy * dy)) * 0.25f;
+			} else if (diff > 0) {
+				// tile zoom level is child of current
+
+				if (diff < 3) {
+					dx = ((t.pixelX + h) >> diff) - x;
+					dy = ((t.pixelY + h) >> diff) - y;
+				}
+				else {
+					dx = ((t.pixelX + h) >> (diff >> 1)) - x;
+					dy = ((t.pixelY + h) >> (diff >> 1)) - y;
+				}
+				// t.distance = ((dx > 0 ? dx : -dx) + (dy > 0 ? dy : -dy));
+				t.distance = FloatMath.sqrt((dx * dx + dy * dy));
+
+			} else {
+				// tile zoom level is parent of current
+				dx = ((t.pixelX + h) << -diff) - x;
+				dy = ((t.pixelY + h) << -diff) - y;
+
+				// t.distance = ((dx > 0 ? dx : -dx) + (dy > 0 ? dy : -dy)) * (-diff * 0.5f);
+				t.distance = FloatMath.sqrt((dx * dx + dy * dy)) * (-diff * 0.5f);
+			}
+		}
+	}
+
+	private static void limitCache(MapPosition mapPosition, int remove) {
+		int removes = remove;
+
+		int size = mTiles.size();
+		int tmp = size;
+
+		// remove orphaned tiles
+		for (int i = 0; i < size;) {
+			MapTile cur = mTiles.get(i);
+			// make sure tile cannot be used by GL or MapWorker Thread
+			if ((!cur.isActive) && (!cur.isLoading) && (!cur.newData)
+					&& (!cur.isReady) && (!tileInUse(cur))) {
+
+				clearTile(cur);
+				mTiles.remove(i);
+				removes--;
+				size--;
+				// Log.d(TAG, "remove empty tile" + cur);
+				continue;
+			}
+			i++;
+		}
+
+		Log.d(TAG, "remove tiles: " + removes + " " + size + " " + tmp);
+
+		if (removes <= 0)
+			return;
+
+		updateTileDistances(mTiles, mapPosition);
+		Collections.sort(mTiles);
+
+		// boolean printAll = false;
+
+		for (int i = 1; i <= removes; i++) {
+
+			MapTile t = mTiles.remove(size - i);
+
+			synchronized (t) {
+				if (t.isActive) {
+					// dont remove tile used by renderthread
+					Log.d(TAG, "X not removing active " + t + " " + t.distance);
+
+					// if (printAll) {
+					// printAll = false;
+					// for (GLMapTile tt : mTiles)
+					// Log.d(TAG, ">>>" + tt + " " + tt.distance);
+					// }
+					mTiles.add(t);
+				} else if ((t.isReady || t.newData) && tileInUse(t)) {
+					// check if this tile could be used as proxy
+					Log.d(TAG, "X not removing proxy: " + t + " " + t.distance);
+					mTiles.add(t);
+				} else {
+					if (t.isLoading) {
+						Log.d(TAG, "X cancel loading " + t + " " + t.distance);
+						t.isLoading = false;
+					}
+					clearTile(t);
+				}
+			}
+		}
+	}
+
+	private static void limitLoadQueue(int remove) {
+		int size = remove;
+
+		synchronized (mTilesLoaded) {
+
+			// remove uploaded tiles
+			for (int i = 0; i < size;) {
+				MapTile t = mTilesLoaded.get(i);
+				// rel == null means tile is already removed by limitCache
+				if (!t.newData || t.rel == null) {
+					mTilesLoaded.remove(i);
+					size--;
+					continue;
+				}
+				i++;
+			}
+
+			// clear loaded but not used tiles
+			if (size < MAX_TILES_IN_QUEUE)
+				return;
+
+			while (size-- > MAX_TILES_IN_QUEUE - 20) {
+				MapTile t = mTilesLoaded.get(size);
+
+				synchronized (t) {
+					if (t.rel == null) {
+						mTilesLoaded.remove(size);
+						continue;
+					}
+
+					if (tileInUse(t)) {
+						// Log.d(TAG, "keep unused tile data: " + t + " " + t.isActive);
+						continue;
+					}
+
+					mTilesLoaded.remove(size);
+					mTiles.remove(t);
+					// Log.d(TAG, "remove unused tile data: " + t);
+					clearTile(t);
+				}
+			}
+		}
+	}
+
+	static void addTileLoaded(MapTile tile) {
+		synchronized (mTilesLoaded) {
+			mTilesLoaded.add(0, tile);
+		}
+	}
+}

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

@@ -20,28 +20,20 @@ import org.mapsforge.core.Tile;
  * 
  */
 public class JobTile extends Tile implements Comparable<JobTile> {
-	/**
+	// public final static int LOADING = 1;
-	 * tile is loaded and ready for drawing. (set and used by render thread after uploading data to gl).
+	// public final static int NEWDATA = 1 << 1;
-	 */
+	// public final static int READY = 1 << 2;
-	public boolean isReady;
+	// public final static int AVAILABLE = 1 << 1 | 1 << 2;
+	// public final static int CANCELED = 1 << 3;
+	// public int state;
 
 	/**
-	 * tile is removed from JobQueue and loading in DatabaseRenderer. set by MapWorker.
+	 * tile is in JobQueue
 	 */
 	public boolean isLoading;
 
 	/**
-	 * tile is in view region. (set and used by render thread)
+	 * distance from map center.
-	 */
-	public boolean isVisible;
-
-	/**
-	 * tile is used by render thread. set by updateVisibleList (main thread).
-	 */
-	public boolean isActive;
-
-	/**
-	 * distance from center, used in TileScheduler set by updateVisibleList.
 	 */
 	public float distance;
 
@@ -61,7 +53,8 @@ public class JobTile extends Tile implements Comparable<JobTile> {
 	public int compareTo(JobTile o) {
 		if (this.distance < o.distance) {
 			return -1;
-		} else if (this.distance > o.distance) {
+		}
+		if (this.distance > o.distance) {
 			return 1;
 		}
 		return 0;

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

@@ -61,8 +61,8 @@ public final class MapDatabaseFactory {
 		switch (mapDatabase) {
 			case MAP_READER:
 				return new org.mapsforge.database.mapfile.MapDatabase();
-			case JSON_READER:
+			case TEST_READER:
-				return new org.mapsforge.database.json.MapDatabase();
+				return new org.mapsforge.database.test.MapDatabase();
 			case POSTGIS_READER:
 				return new org.mapsforge.database.postgis.MapDatabase();
 			case PBMAP_READER:

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

@@ -26,7 +26,7 @@ public enum MapDatabases {
 	/**
 	 * ...
 	 */
-	JSON_READER,
+	TEST_READER,
 
 	/**
 	 * ...

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

@@ -91,7 +91,7 @@ public class MapGenerator implements IMapGenerator, IRenderCallback,
 	private static float PI180 = (float) (Math.PI / 180) / 1000000.0f;
 	private static float PIx4 = (float) Math.PI * 4;
 
-	private Tile mCurrentTile;
+	private JobTile mCurrentTile;
 	private static long mCurrentTileY;
 	private static long mCurrentTileX;
 	private static long mCurrentTileZoom;

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

@@ -28,6 +28,8 @@ public class MapTile extends JobTile {
 	// private long mLoadTime;
 	private int mTextureID;
 
+	boolean isVisible;
+
 	/**
 	 * @param tileX
 	 *            ...

src/org/mapsforge/app/TileMap.java

@@ -104,6 +104,10 @@ public class TileMap extends MapActivity {
 				return true;
 
 			case R.id.menu_position:
+				mMapView.enableRotation(true);
+				return true;
+
+			case R.id.menu_rotation_enable:
 				return true;
 
 			case R.id.menu_position_my_location_enable:

src/org/mapsforge/core/Tile.java

@@ -49,8 +49,6 @@ public class Tile {
 	 */
 	public final long pixelY;
 
-	public volatile boolean isCanceled;
-
 	/**
 	 * @param tileX
 	 *            the X number of the tile.

src/org/mapsforge/database/IMapDatabase.java

@@ -16,7 +16,7 @@ package org.mapsforge.database;
 
 import java.io.File;
 
-import org.mapsforge.core.Tile;
+import org.mapsforge.android.mapgenerator.JobTile;
 
 /**
  *
@@ -38,7 +38,7 @@ public interface IMapDatabase {
 	 *            the callback which handles the extracted map elements.
 	 * @return true if successful
 	 */
-	public abstract QueryResult executeQuery(Tile tile,
+	public abstract QueryResult executeQuery(JobTile tile,
 			IMapDatabaseCallback mapDatabaseCallback);
 
 	/**

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

@@ -20,9 +20,9 @@ import java.io.RandomAccessFile;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
+import org.mapsforge.android.mapgenerator.JobTile;
 import org.mapsforge.core.MercatorProjection;
 import org.mapsforge.core.Tag;
-import org.mapsforge.core.Tile;
 import org.mapsforge.database.FileOpenResult;
 import org.mapsforge.database.IMapDatabase;
 import org.mapsforge.database.IMapDatabaseCallback;
@@ -204,7 +204,7 @@ public class MapDatabase implements IMapDatabase {
 	 * org.mapsforge.map.reader.MapDatabaseCallback)
 	 */
 	@Override
-	public QueryResult executeQuery(Tile tile, IMapDatabaseCallback mapDatabaseCallback) {
+	public QueryResult executeQuery(JobTile tile, IMapDatabaseCallback mapDatabaseCallback) {
 		if (sMapFileHeader == null)
 			return QueryResult.FAILED;
 

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

@@ -53,6 +53,7 @@ import org.apache.http.params.HttpConnectionParams;
 import org.apache.http.params.HttpParams;
 import org.apache.http.protocol.RequestExpectContinue;
 import org.apache.http.protocol.RequestUserAgent;
+import org.mapsforge.android.mapgenerator.JobTile;
 import org.mapsforge.core.BoundingBox;
 import org.mapsforge.core.GeoPoint;
 import org.mapsforge.core.Tag;
@@ -106,7 +107,7 @@ public class MapDatabase implements IMapDatabase {
 
 	private IMapDatabaseCallback mMapGenerator;
 	private float mScaleFactor;
-	private Tile mTile;
+	private JobTile mTile;
 	private FileOutputStream mCacheFile;
 
 	private long mContentLenth;
@@ -129,7 +130,7 @@ public class MapDatabase implements IMapDatabase {
 			});
 
 	@Override
-	public QueryResult executeQuery(Tile tile, IMapDatabaseCallback mapDatabaseCallback) {
+	public QueryResult executeQuery(JobTile tile, IMapDatabaseCallback mapDatabaseCallback) {
 		QueryResult result = QueryResult.SUCCESS;
 		mCacheFile = null;
 
@@ -194,7 +195,7 @@ public class MapDatabase implements IMapDatabase {
 					entity.consumeContent();
 					return QueryResult.FAILED;
 				}
-				if (mTile.isCanceled) {
+				if (!mTile.isLoading) {
 					Log.d(TAG, "1 loading canceled " + mTile);
 					entity.consumeContent();
 
@@ -249,7 +250,7 @@ public class MapDatabase implements IMapDatabase {
 			mRequest = null;
 
 		// FIXME remove this stuff
-		if (mTile.isCanceled) {
+		if (!mTile.isLoading) {
 			Log.d(TAG, "loading canceled " + mTile);
 			result = QueryResult.FAILED;
 		}

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

@@ -24,10 +24,10 @@ import java.util.HashMap;
 import java.util.Map.Entry;
 import java.util.Properties;
 
+import org.mapsforge.android.mapgenerator.JobTile;
 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;
@@ -45,7 +45,7 @@ import android.util.Log;
 public class MapDatabase implements IMapDatabase {
 	private final static String TAG = "MapDatabase";
 
-	private static final String QUERY = "SELECT tags, geom FROM __get_tile(?,?,?,false)";
+	private static final String QUERY = "SELECT tags, geom FROM __get_tile(?,?,?)";
 
 	private final float mScale = 1;
 
@@ -71,7 +71,7 @@ public class MapDatabase implements IMapDatabase {
 
 	private boolean connect() {
 		Connection conn = null;
-		String dburl = "jdbc:postgresql://city.informatik.uni-bremen.de:5432/gis";
+		String dburl = "jdbc:postgresql://city.informatik.uni-bremen.de:5432/gis-2.0";
 
 		Properties dbOpts = new Properties();
 		dbOpts.setProperty("user", "osm");
@@ -102,7 +102,7 @@ public class MapDatabase implements IMapDatabase {
 	}
 
 	@Override
-	public QueryResult executeQuery(Tile tile, IMapDatabaseCallback mapDatabaseCallback) {
+	public QueryResult executeQuery(JobTile tile, IMapDatabaseCallback mapDatabaseCallback) {
 		if (connection == null) {
 			if (!connect())
 				return QueryResult.FAILED;

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

@@ -12,10 +12,11 @@
  * 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.json;
+package org.mapsforge.database.test;
 
 import java.io.File;
 
+import org.mapsforge.android.mapgenerator.JobTile;
 import org.mapsforge.core.BoundingBox;
 import org.mapsforge.core.MercatorProjection;
 import org.mapsforge.core.Tag;
@@ -51,7 +52,7 @@ public class MapDatabase implements IMapDatabase {
 	// private static double HALF_PI = Math.PI / 2;
 
 	@Override
-	public QueryResult executeQuery(Tile tile, IMapDatabaseCallback mapDatabaseCallback) {
+	public QueryResult executeQuery(JobTile tile, IMapDatabaseCallback mapDatabaseCallback) {
 
 		long cx = tile.pixelX + (Tile.TILE_SIZE >> 1);
 		long cy = tile.pixelY + (Tile.TILE_SIZE >> 1);