Thanks @reyalp, just tried it and yes I can now have zebras on always :-)
As you likely are aware, with the histogram on I get flashing of the histogram (on/off), about every second. even with zebra selected as solid.
Also, 'bits' of the Canon side flash through, eg bits of the exposure meter.
Yes. I believe these are equivalent to what you would see in the old code if you had both enabled in half press, although there are several variations of zebra code even on the pre-digic 6 cams, so it's possible some behave differently.
Plus, is there a reason the zebras don't show in ALT mode?
Because I didn't add special code to make it do that. Given how the zebra conflicts with other UI elements, I'm not sure how useful it would be, although it would make some sense to have it match the histogram behavior.
Philmoz:
Looking at the digic 6/xmir code, I believe the current zebra drays on the
bitmap YUV buffer, rather then the ximr RGBA buffer (using draw_dblpixel_raw). It seems like it should be possible to display both, at least with similar (or perhaps even less) ugliness than the old cams.
One oddity I noticed is that if both histogram and zebra are set to half press (zebra on behavior without my changes) the histogram does display on halfpress, but doesn't update. I guess this is because zebra drawing doesn't erase the RGBA buffer, but I still trying to refresh my memory how all that stuff works.