Custom drawBitmap() performance

[joyrider3774]

i found a (temporary) workaround you can abuse this newbitmap bug to make bitmaps that are 32 bit aligned

newBitmap(73, 55) returned LCDBitmap with rowbytes of 12, not 10

I noticed that.. 4 months ago, according to gitlab. I'll just paste what I filed there: pd->graphics->newBitmap() is rounding rowbytes up to 32-bit boundary We started allowing 8-bit alignment a while back so that fonts are encoded more efficiently. Before we change it here too we should check for performance differences. I doubt it'll be anything noticeable but 32-bit aligned access is slightly faster; on the other hand, more padding increases cache misses. So yeah, it was just an oversigh…

like so for example in your image loading code:

But as soon as the newbitmap bug is fixed this workaround will no longer work