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Windows now outlive the compositor. On connection loss YASL sends
DISPLAY_LOST instead of closing every window, retries the connection on
a loop timer, rebuilds each toplevel with its title, size, state and GL
context, and sends DISPLAY_RESTORED. CPU windows keep their pixels;
GPU renderers drop Vulkan surfaces and GL objects on loss and rebuild
them on restore.
- Free the dead connection's objects on the next wait, after the
application has released GPU objects built on them.
- Report a lost connection as an event rather than a failed wait.
- Refuse window and Vulkan surface creation while offline with the new
YASL_ERROR_DISCONNECTED.
- Close popups, cancel drags and fail pending clipboard requests on loss.
- Print only protocol errors, not ordinary disconnects.
- Examples survive a restart; game.c rebinds its GL context.
- Add an end-to-end test that kills Weston under CPU, GL and Vulkan
windows and requires them to recover.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Applications now need far less ceremony: hello.c is a 20-line loop that
handles REFRESH, CLOSE and QUIT and draws into the surface's own pixels.
- Fold GEOMETRY, STATE and FOCUS into one WINDOW event carrying size,
scale and state; unchanged values send nothing.
- Guarantee REFRESH once a window has a size and after every resize,
never at size zero.
- Merge DROP_HOVER into DROP with over/leave/data actions and give drag
and drop actions enums.
- Keep event strings valid until the next wait and drop
yasl_event_release; empty or failed waits report NONE.
- Replace copy-in presentation with a lent pixel buffer:
yasl_cpu_pixels and yasl_cpu_present.
- Remove yasl_poll_event, yasl_cpu_read_pixels, unused event fields and
comments that restated names.
- Wayland: resize floating windows in request_size instead of reporting
it unsupported, and stop marking new GPU surfaces as Vulkan so
yasl_vulkan_create_surface no longer fails with NATIVE_WINDOW_IN_USE.
Also includes the in-progress public API refactor that was uncommitted
in the tree (removal of the app/loop layer, new surface, GL and Vulkan
entry points).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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wsap_term writes PNG screenshots for its debug server and keeps its own
copy of the frame because YASL had no readback.
yasl_surface_read_pixels() copies the frame from the last successful
present, or reports its extent when the buffer is too small. X11 and
Cocoa keep it in their single CPU target until the next draw starts;
X11 now also forgets it when a resize replaces the target, and Cocoa
records the presented extent because a resize can change the size before
the next draw. Wayland remembers which buffer it committed and forgets it
when a draw reuses that buffer.
The backend test checks the copy on Wayland and X11, and that draws that
never present do not show through. The Cocoa path is not built or run
here.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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