Deckboy v0.89.0

A marks alphabet for text mode

A new glyph set, music & sparkle: dots, rings, an arc, a tilde, plusses,
crosses, diamonds, a star, and quarter, quaver, beamed and double-beamed notes.
Cycle to it on the GLYPHS row like any other set, or reach it from the text mode
effect's glyph-set parameter — so an LFO can sweep the alphabet along with
everything else.

The custom glyph field understands pasted characters now. Type or paste a row of
marks and they map to the ones that are drawn, with several spellings each — a
star arrives as a different character depending where it was copied from, and
they all land on the star. Custom sets can mix ordinary letters and marks
freely, and the existing SHUFFLE seed re-maps which mark carries which
brightness, so one set gives many different hands.

Devices you named, kept

A deck remembers the audio interface you chose, even when it is not there yet.
Start the machine before the rack is powered on and the deck says so — "not
found, on default" — instead of quietly forgetting what you asked for. When the
interface appears, the deck moves back to it on its own; when one is unplugged
mid-show, the deck moves to the system default rather than going silent.

The same for a control surface. The chosen MIDI port is saved with the show now,
so it survives a restart, and a port that is not present is reported by name
rather than replaced with whichever one happened to be first. Unplug the surface
and Deckboy says so; plug it back in and it reconnects itself.

deckboy --devices prints the audio devices, displays, MIDI ports and
render drivers this machine offers, with each device's real rate and channel
count and each display's real refresh and scaling — and it spells the names the
way a show file needs them.

Audio cues can be trimmed

In and out points on an audio cue, in the inspector and over the control
protocol, the same as a clip. A music bed can start eight bars in.

Steadier

• The show file is written beside itself and renamed into place, so it is never
  half-written on disk.
• Opening a show no longer writes to it.
• Streams and capture inputs get GEOMETRY, KEY and EFFECTS in the inspector.
• A DeckLink input has a full inspector, and names the card it is watching.
• Timecode readouts roll over correctly at the minute.
• IN, OUT and MIDI over the control protocol report what they actually
  did, with the reason when they could not.