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tiles are already locked when in use by GLRenderer

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This commit is contained in:
Hannes Janetzek 2013-02-06 12:21:43 +01:00
parent 53e6b6537f
commit 6466a65545
1 changed files with 13 additions and 14 deletions
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27
src/org/oscim/renderer/GLRenderer.java
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@ -512,33 +512,32 @@ public class GLRenderer implements GLSurfaceView.Renderer {
return ((t.tileX % 4) + (t.tileY % 4 * 4) + 1);
}
// get a TileSet of currently visible tiles
public static TileSet getVisibleTiles(TileSet td) {
if (mDrawTiles == null)
return td;
MapTile[] newTiles = mDrawTiles.tiles;
int cnt = mDrawTiles.cnt;
// ensure tiles keep visible state
synchronized (GLRenderer.tilelock) {
// lock tiles (and their proxies) to not be removed from cache
for (int i = 0; i < cnt; i++)
if (newTiles[i].isVisible)
newTiles[i].lock();
MapTile[] newTiles = mDrawTiles.tiles;
int cnt = mDrawTiles.cnt;
if (td == null)
td = new TileSet(newTiles.length);
// unlock previously active tiles
for (int i = 0, n = td.cnt; i < n; i++)
// unlock previous tiles
for (int i = 0; i < td.cnt; i++)
td.tiles[i].unlock();
// copy newTiles to nextTiles
// lock tiles to not be removed from cache
td.cnt = 0;
for (int i = 0; i < cnt; i++)
if (newTiles[i].isVisible)
td.tiles[td.cnt++] = newTiles[i];
for (int i = 0; i < cnt; i++) {
MapTile t = newTiles[i];
if (t.isVisible) {
t.lock();
td.tiles[td.cnt++] = t;
}
}
}
return td;
}