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Catch out of memory exceptions. exists() now check for parent tile.

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Signed-off-by: yvecai <yvecai@gmail.com>
This commit is contained in:
yvecai 2012-02-09 23:04:31 +01:00 committed by Jindřich Makovička
parent f96d7ab203
commit 0304ddba6f
1 changed files with 113 additions and 80 deletions
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193
OsmAnd/src/net/osmand/plus/SQLiteTileSource.java
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@ -24,6 +24,7 @@ import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Rect;
public class SQLiteTileSource implements ITileSource {
@ -162,7 +163,7 @@ public class SQLiteTileSource implements ITileSource {
if(db == null){
return false;
}
return true; // Cheat to test resampling /o modifying ressourceManager
return true; // Always true in resampling mode
// Cursor cursor = db.rawQuery("SELECT 1 FROM tiles WHERE z = ? LIMIT 1", new String[] {(17 - zoom)+""}); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
// try {
// boolean e = cursor.moveToFirst();
@ -178,19 +179,22 @@ public class SQLiteTileSource implements ITileSource {
if(db == null){
return false;
}
return true; // Cheat to test resampling /o modifying ressourceManager
// long time = System.currentTimeMillis();
// Cursor cursor = db.rawQuery("SELECT 1 FROM tiles WHERE x = ? AND y = ? AND z = ?", new String[] {x+"", y+"",(17 - zoom)+""}); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
// try {
// boolean e = cursor.moveToFirst();
// cursor.close();
// if (log.isDebugEnabled()) {
// log.debug("Checking tile existance x = " + x + " y = " + y + " z = " + zoom + " for " + (System.currentTimeMillis() - time)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
// }
// return e;
// } catch (SQLiteDiskIOException e) {
// return false;
// }
//return true; // Cheat to test resampling /o modifying ressourceManager
long time = System.currentTimeMillis();
int n = zoom - baseZoom;
int base_xtile = x >> n;
int base_ytile = y >> n;
Cursor cursor = db.rawQuery("SELECT 1 FROM tiles WHERE x = ? AND y = ? AND z = ?", new String[] {base_xtile+"", base_ytile+"",(17 - baseZoom)+""}); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
try {
boolean e = cursor.moveToFirst();
cursor.close();
if (log.isDebugEnabled()) {
log.debug("Checking parent tile existance x = " + base_xtile + " y = " + base_ytile + " z = " + baseZoom + " for " + (System.currentTimeMillis() - time)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
}
return e;
} catch (SQLiteDiskIOException e) {
return false;
}
}
public boolean isLocked() {
@ -205,47 +209,61 @@ public class SQLiteTileSource implements ITileSource {
// return a (tileSize+2*margin)^2 tile around a given tile
// based on its neighbor. This is needed to have a nice bilinear resampling
// on tile edges. Margin of 1 is enough for bilinear resampling.
SQLiteDatabase db = getDatabase();
if(db == null){
return null;
}
Bitmap stitchedImage = Bitmap.createBitmap(tileSize + 2 * margin, tileSize + 2 * margin, Config.ARGB_8888);
Canvas canvas = new Canvas(stitchedImage);
for (int dx = -1; dx <= 1; dx++) {
for (int dy = -1; dy <= 1; dy++) {
if ((flags & (0x400 >> (4 * (dy + 1) + (dx + 1)))) == 0)
continue;
int xOff, yOff, w, h;
int dstx, dsty;
Cursor cursor = db.rawQuery(
"SELECT image FROM tiles WHERE x = ? AND y = ? AND z = ?",
new String[] {(x + dx) + "", (y + dy) + "", (17 - zoom) + ""}); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
byte[] blob = null;
if(cursor.moveToFirst()) {
blob = cursor.getBlob(0);
}
cursor.close();
if (dx < 0) xOff = tileSize - margin; else xOff = 0;
if (dx == 0) w = tileSize; else w = margin;
if (dy < 0) yOff = tileSize - margin; else yOff = 0;
if (dy == 0) h = tileSize; else h = margin;
dstx = dx * tileSize + xOff + margin;
dsty = dy * tileSize + yOff + margin;
if(blob != null){
Bitmap Tile = BitmapFactory.decodeByteArray(blob, 0, blob.length);
blob = null;
Rect src = new Rect(xOff, yOff, xOff + w, yOff + h);
Rect dst = new Rect(dstx, dsty, dstx + w, dsty + h);
canvas.drawBitmap(Tile, src, dst, null);
}
}
}
return stitchedImage; // return a tileSize+2*margin size image
try{
Bitmap stitchedImage = Bitmap.createBitmap(tileSize + 2 * margin, tileSize + 2 * margin, Config.ARGB_8888);
Canvas canvas = new Canvas(stitchedImage);
for (int dx = -1; dx <= 1; dx++) {
for (int dy = -1; dy <= 1; dy++) {
if ((flags & (0x400 >> (4 * (dy + 1) + (dx + 1)))) == 0)
continue;
int xOff, yOff, w, h;
int dstx, dsty;
Cursor cursor = db.rawQuery(
"SELECT image FROM tiles WHERE x = ? AND y = ? AND z = ?",
new String[] {(x + dx) + "", (y + dy) + "", (17 - zoom) + ""}); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$//$NON-NLS-4$
byte[] blob = null;
if(cursor.moveToFirst()) {
blob = cursor.getBlob(0);
}
cursor.close();
if (dx < 0) xOff = tileSize - margin; else xOff = 0;
if (dx == 0) w = tileSize; else w = margin;
if (dy < 0) yOff = tileSize - margin; else yOff = 0;
if (dy == 0) h = tileSize; else h = margin;
dstx = dx * tileSize + xOff + margin;
dsty = dy * tileSize + yOff + margin;
if(blob != null){
Bitmap Tile = BitmapFactory.decodeByteArray(blob, 0, blob.length);
blob = null;
Rect src = new Rect(xOff, yOff, xOff + w, yOff + h);
Rect dst = new Rect(dstx, dsty, dstx + w, dsty + h);
canvas.drawBitmap(Tile, src, dst, null);
Tile.recycle();
}
}
}
return stitchedImage; // return a tileSize+2*margin size image
}
catch(OutOfMemoryError ome)
{
double free= Runtime.getRuntime().freeMemory();
if (log.isDebugEnabled()) log.debug("Out of memory, skipping. Free mem = " + free );
return null;
}
}
public Bitmap getImage(int x, int y, int zoom) {
SQLiteDatabase db = getDatabase();
if(db == null){
@ -259,8 +277,15 @@ public class SQLiteTileSource implements ITileSource {
blob = cursor.getBlob(0);
}
cursor.close();
if(blob != null){
return BitmapFactory.decodeByteArray(blob, 0, blob.length);
if(blob != null){
try{
return BitmapFactory.decodeByteArray(blob, 0, blob.length);
}
catch(OutOfMemoryError ome)
{
double free= Runtime.getRuntime().freeMemory();
if (log.isDebugEnabled()) log.debug("Out of memory, skipping. Free mem = " + free );
}
}
return null;
} else {
@ -270,43 +295,51 @@ public class SQLiteTileSource implements ITileSource {
int base_ytile = y >> n;
int scaledSize= tileSize >> n;
int offset_x= x - (base_xtile << n);
int offset_y= y - (base_ytile << n);
int flags = 0x020;
int offset_x= x - (base_xtile << n);
int offset_y= y - (base_ytile << n);
int flags = 0x020;
if (scaledSize < 8)
return null;
if (offset_x == 0)
flags |= 0x444;
else if (offset_x == (1 << n) - 1)
flags |= 0x111;
if (offset_y == 0)
flags |= 0x700;
else if (offset_y == (1 << n) - 1)
flags |= 0x007;
if (scaledSize < 8)
return null;
if (offset_x == 0)
flags |= 0x444;
else if (offset_x == (1 << n) - 1)
flags |= 0x111;
if (offset_y == 0)
flags |= 0x700;
else if (offset_y == (1 << n) - 1)
flags |= 0x007;
Bitmap metaTile = getMetaTile(base_xtile, base_ytile, baseZoom, flags);
if(metaTile != null){
// in tile space:
int delta_px = scaledSize * offset_x;
int delta_py = scaledSize * offset_y;
Bitmap xn = Bitmap.createBitmap(metaTile,
delta_px,
delta_py,
scaledSize + 2 * margin,
scaledSize + 2 * margin);
metaTile.recycle();
int scaleto = tileSize + ((2 * margin) << n);
Bitmap scaled = Bitmap.createScaledBitmap(xn,scaleto,scaleto,true);
xn.recycle();
return Bitmap.createBitmap(scaled, (margin << n), (margin << n), tileSize, tileSize);
int delta_px = scaledSize * offset_x;
int delta_py = scaledSize * offset_y;
try {
Bitmap xn = Bitmap.createBitmap(metaTile,
delta_px,
delta_py,
scaledSize + 2 * margin,
scaledSize + 2 * margin);
metaTile.recycle();
int scaleto = tileSize + ((2 * margin) << n);
Bitmap scaled = Bitmap.createScaledBitmap(xn,scaleto,scaleto,true);
xn.recycle();
return Bitmap.createBitmap(scaled, (margin << n), (margin << n), tileSize, tileSize);
}
catch(OutOfMemoryError ome)
{
double free= Runtime.getRuntime().freeMemory();
if (log.isDebugEnabled()) log.debug("Out of memory, skipping. Free mem = " + free );
}
}
return null;
}
}
public ITileSource getBase() {
return base;
}