Lukáš Karas

What are your screen dimensions (reported by Qt) and HiDPI upscale? You may also try to lower `OSMScoutQt::onlineTileCacheSize` and `OSMScoutQt::offlineTileCacheSize` during library setup, by `OSMScoutQtBuilder::WithTileCacheSizes`. You just need to keep...

Hi @janbar , sorry for long delays. I know that it may be frustrating. But the family and work... Looking to the code with calculator. With `screenPixelRatio=3` and `mapDpi=153`, `finalDpi`...

...usage of RBG888 should be without conversion in QOpenGLTextureCache::bindTexture : https://github.com/Framstag/libosmscout/pull/1648

I didnt realized that we need alpha channel for tiles - when offline tiles are combined with the online one. So, 24bit pixel format (rgb888) may be used just in...

Another option howto reduce memory would be releasing image data after submit to gpu memory. But I am worry that it is not doable easily with default qt rendering pipeline....

Yes, it is visible that overhead is huge. But I believe that it is correct - in sense of correctness :-) Tile size for your dpi and 3x upscaling should...

Here is configuration option for pixel ratio: https://github.com/Framstag/libosmscout/pull/1650 It may follow the screen value, or may be fixed...

For importing OpenStreetMap data, you need to have [Import tool from libosmscout](https://github.com/Framstag/libosmscout/) on your computer. Then, use this tutorial [howto run importer](https://libosmscout.sourceforge.net/tutorials/importing/). Finally, copy resulted database files to your phone,...

And do you need Import tool? Import library is the only place where progress utility is used. So, as temporary solution may be to move Progress utility there and disable...

Hi @janbar . Interesting issue. I saw various rendering issues with SailfishOS using Qt5 and Lipstick renderer (Wailand). But not such artifacts in linked issue. Possibly caused by bug in...