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use Matrix for scaling, remove one intermediate bitmap

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This commit is contained in:
Jindřich Makovička 2012-12-03 23:35:24 +01:00
parent ef5807ba3c
commit e85ca6463a
1 changed files with 10 additions and 10 deletions
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20
OsmAnd/src/net/osmand/plus/SQLiteTileSource.java
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@ -23,6 +23,9 @@ import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Matrix;
import android.graphics.Matrix.ScaleToFit;
public class SQLiteTileSource implements ITileSource {
@ -299,16 +302,13 @@ public class SQLiteTileSource implements ITileSource {
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);
RectF src = new RectF(0.5f, 0.5f,
scaledSize + 2 * margin - 0.5f, scaledSize + 2 * margin - 0.5f);
RectF dest = new RectF(0, 0, tileSize, tileSize);
Matrix m = new Matrix();
m.setRectToRect(src, dest, Matrix.ScaleToFit.FILL);
return Bitmap.createBitmap(metaTile, delta_px, delta_py,
scaledSize + 2*margin-1, scaledSize + 2*margin-1, m, true);
}
return null;
}