Hi,
So I've been hacking on mutter and the gnome pieces for tiling, and I've at least fixed mutter locally so maximise windows works and the heads are in the right order.
Now I've strung all the pieces together using a single KMS property that X.org propogates, and mutter picks up and propagates over dbus as well,
Currently I've ascii encoded the property into a blob,
<ver>:<tileid>:<flags>:<maxhtiles>:<maxvtiles>:<h_tile_loc>:<v_tile_loc>:<tile_w>:<tile_h>
I'm thinking of dropping the version field and just exposing TILE2 property if we need it later to add more values,
The other fields: tileid: a group id assigned by the kernel to all tiles in the same group - unique per group flags: bit 0 : single monitor enclosure maxhtiles: total number of horiz tiles maxvtiles: total number of vert tiles h_tile_loc: horiz location of this output in tile group v_tile_loc: vert location of this output in tile group tile_w: width of this tile tile_h: height of this tile.
Now we extract all of these from the DisplayID v1.3 block, and I'm wondering if maybe I shouldn't just export the whole DisplayID tiling info block instead, it however encodes a few other pieces of information, including bezel info, and some flags specifying behaviour in some cases.
The former could be more suitable for cases where DisplayID isn't available (Dual DSI panels?) but I'm worried abuot exposing too little at this point making TILE useless when the next monitor comes out.
I'm not sure any part of the stack should be extracting things and splitting them out, I'd like to just give the same tile property all the way through.
Dave.