a quick and easy way to get a local Plan 9 terminal is to use 9Pi (Plan 9 on Raspberry Pi). with Go 1.6 and later you can cross compile for plan9/arm.
On Sat, May 28, 2016 at 10:24 AM Dave MacFarlane <driu...@gmail.com> wrote: > Either I'm going insane, the default Plan 9 /dev/draw in-memory > implementation > doesn't implement draw(3), or possibly both. > > When I do the following, it works as expected under both drawterm and a > locally mounted instance: > 1. Allocate a screen with an 'A' message > 2. Allocate an image on the screen of the same size as /dev/wctl with a > 'b' message > 3. Draw the image over the window with a 'd' message > 4. Flush the buffer with 'v' > > When I do the following, it works under drawterm, but not with a local > /dev/draw implementation: > Steps 1-2 above > 3. Allocate another image of some arbitrary fill colour with 'b' (with or > without the repl bit) > 4a. (Optional, doesn't seem to make a difference) set the compositing > operator with 'O' > 4b. Draw the new image over a portion of the window image from step 2 with > 'd' > 5. Go to step 3-4 from the first variation. > > (I don't have a 9front instance to test on.) > > On the other hand, replacing a portion of the image from step 2 with 'y' > works under either. (I haven't gotten around to using 'Y' when appropriate > yet.) > > Basically, I can only get any variation of this code: > https://github.com/driusan/exp/blob/18a78a1549541d46d26cb6088a904585c386d812/shiny/driver/devdrawdriver/uploadimpl.go#L50 > > to work under drawterm. > > The end result is that under a local Plan 9 instance the basic sample > shiny test looks like this: > > http://driusan.github.io/plan9/basicmem.png > > Instead of this: > > http://driusan.github.io/plan9/basicdrawterm.png > > Does anyone have any pointers? I don't have much access to a physical Plan > 9 machine, so I'm having trouble debugging this since it works under > drawterm (or perhaps is buggy under drawterm in a way that makes it seem > like it's working..) > > It would also potentially be helpful if someone who uses Go under 9front > could let me know how x/exp/shiny/examples/basic looks with the shiny > driver in that branch, but I'm not sure that it matters since it'll most > likely be the same as one of the above.. > > - Dave >
