Navit runs out of global refs on Android

[me.yahoo.com/a/hthlykcvonrgunec9ub0cbz2zzjwdg10#c2fd6]

On my HTC Hero navit is killed after a few minutes of navigating, due tu a ReferenceTable? overflow error. The logcat trace shows lots of android.graphics.Paint objects, and android.graphics.Bitmap objects. Apparently everytime I pan the map it creates new objects, and the old ones never get freed.

Android only has a max of 512000 globalrefs for an app (2000 on the emulator), so creating a new paint object for each element on the map won't work.

The attached patch fixes this by:

• moving the Paint object from graphics_gc_priv to graphics_priv, graphics_gc_priv will only store the state, and we can use a single Paint object per graphics_priv
• image_destroy is never called for a bitmap, but image_free is, so move the code there, so the images get freed too

Before the patch as soon as navit tried to load a map, it got killed (on the emulator), or get killed a few minutes after (when I navigated the map). After the patch, I can navigate the map (pan) without any crashes!

[me.yahoo.com/a/hthlykcvonrgunec9ub0cbz2zzjwdg10#c2fd6]

Cumulative patch (including the fix for ticker #522)

[me.yahoo.com/a/hthlykcvonrgunec9ub0cbz2zzjwdg10#c2fd6]

Here is .apk with these patches applied, if you want to test the effects: ​http://www.fileden.com/files/2009/9/1/2561232/Navit.apk

[kazer]

android_navit_memory.patch applied in rev2932, android_fix.patch applied in rev2933. Thank you!