SpiceMac 0.1.8

Added

• Display zoom (View ▸ Zoom). On a Retina Mac the client asked the guest for
  the view's full backing pixel count, so a 1512×982-point window drove the
  guest at 3024×1964 — the guest has no idea the Mac is HiDPI, so it rendered
  one pixel per pixel and everything came out half size, while the VM pushed
  four times the pixels it needed. Zoom is now Z = Mac physical pixels per
  guest pixel: the client requests points × backing scale ÷ Z and each guest
  pixel is drawn as a Z×Z block, so readability and cost improve together.
  Shortcuts ⌃⌘+ / ⌃⌘− / ⌃⌘0.

• The zoom level is per-window, and a fixed level is absolute. Each window
  is its own session on its own display, so it carries its own level: picking
  one in the front window leaves the others alone. The commands live on the
  window controller and reach it down the responder chain the way Connection ▸ Send Ctrl-Alt-Del already did, so the submenu greys out with no session open;
  the preference is only the seed a new window starts from. Nothing but the user
  ever changes a level — Automatic is the mode for constant apparent size
  across a move.

• A window that changes display re-applies its geometry. At a fixed level
  the target guest size is points × backing scale ÷ Z, and a move changes the
  backing scale out from under it — which is why it used to need a manual nudge
  of the window before the guest came out right. All four signals AppKit offers
  now drive it, including NSApplicationDidChangeScreenParameters for hotplug,
  sleep/wake and Displays scaled-mode changes, which resize the window without a
  live resize. Requests are coalesced, so four triggers cost at most one guest
  mode switch.

• Without spice-vdagent, zoom and screen changes resize the window
  (guest × Z ÷ backing scale points) rather than doing nothing — the guest
  resolution is fixed, so that is the only side of the equation left. The
  geometry is a new dependency-free package, Packages/DisplayScale, with a
  21-check scalecheck runner wired into make test and CI.

Changed

• The default zoom is Automatic (Z = the screen's backing scale), which
  changes behaviour on upgrade. The guest resolution now tracks the window's
  point size instead of its backing-pixel size, so on first connect after
  updating a Retina guest drops to roughly half its previous resolution and
  everything in it gets twice as big. That is the fix; View ▸ Zoom ▸ 100%
  restores the old behaviour. Automatic also means the requested resolution is
  the window's point size on any display, so dragging between screens needs no
  guest reconfiguration.

Fixed

• A dead connection no longer hides its own explanation. When a session
  ended, the last guest frame stayed frozen over the window (the Metal view is
  opaque and detach() leaves it showing its final texture), so the
  "Disconnected — open a fresh .vv file" hint or the failure reason was drawn
  invisibly behind it and the window just looked hung. The display view now
  hides when the session ends and returns on the next connect, revealing the
  centered status message. A specific failure reason (.failed) is also kept
  if the generic disconnect callback arrives after the error one, instead of
  being downgraded to "Disconnected."

• ISO / French Magic Keyboard <> key now reaches the guest. The keymap was
  ANSI-only and omitted kVK_ISO_Section (0x0A), the key next to Left Shift on
  ISO hardware (e.g. French AZERTY < / >). Presses produced no guest event.
  Map it to PC set-1 KEY_102ND (0x56); inputcheck covers the mapping.
  (#4)

• Guest text was blurry at some window sizes and not others, worst on a
  normal-DPI monitor. The sampler only went nearest-neighbour at 2× or more, so
  a 1:1 presentation — what 100% means on a 1x screen — always took the bilinear
  path; and because the requested mode is floored onto the 8-wide/2-high grid
  guest drivers want, the centred quad landed on a half-pixel offset
  whenever that slack was odd. Nearest now applies at any whole-number
  magnification, and viewportOrigin nudges the quad onto whole pixels — the
  input router subtracts the same origin, so the cursor stays locked.

• Dragging a window between a Retina panel and a 1x monitor did not re-scale
  the guest. MTKView refreshes drawableSize lazily, so inside
  viewDidChangeBackingProperties — the one moment such a move offers — it
  still holds the previous screen's value: on a real 2.0↔1.0 drag the callback
  reports backingScaleFactor 1.0 while drawableSize is still 1800×1200 for a
  view that is now 900×600 physical pixels. The fit now measures with
  convertToBacking(bounds), which follows the backing store immediately, and
  pulls the drawable up to match.

Download

SpiceMac.app.zip — Apple Silicon, macOS 12+. Ad-hoc signed; to open: right-click ▸ Open (macOS 14) or System Settings ▸ Privacy & Security ▸ Open Anyway (macOS 15+), or xattr -dr com.apple.quarantine /Applications/SpiceMac.app.

SHA-256: faeb08e0ef42a4189ed69a4a64cc4c7d3b6e29e511645ccea876eb865551ad76