Rendering with alpha has issues
|Reported by:||usul||Owned by:||cp15|
(Maybe related to #614)
When you use navit on WinCE and Windows, there are some problems with the alpha rendering of icons and geometries:
Any .PNG OSD graphic has a strange white outline in the areas that aren't solid. As it's only a soft shading, it might be related to some overflows or bad bit-operations? As icons appear normal, it doesn't seem to be .PNG related in general (confirmed with SVN 5539 on WinCE Core 5.0
Another effect is that windows ports cant deal with alpha-color-values in styles.
I don't have the experience, if both bugs are related somehow. Maybe there is a problem in the GFX pipeline in general for this port.