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A frame request now only records intent. Each loop step resolves it after
the callbacks that present, so a request made before the present waits for
that frame. An animation that asked first got two REFRESH events per frame
on X11 and with GL.
With no frame in flight, the REFRESH comes one refresh interval after the
last present or answer, so a request without a present cannot spin.
Queued events now go before an owed REFRESH. Input reaches the application
before it draws, and a queued REFRESH pays an owed one for the same surface.
The loop prepare only peeks at a lost event, so deliver can report it as a
final loss. A failed push from another thread wakes the loop.
Signals and posts run at the end of a step, after descriptors and timers.
A signal handler now sees the output that came with it.
A render-thread GL swap counts as in flight on Wayland.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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An application that has its own descriptors and timers needed a second
loop next to yasl's, and could not see yasl's key-repeat timer, clipboard
pipes or reconnect timer. Now there is one wait: the application owns a
yasl_loop, and yasl_init can run the display on it.
- Public yasl_loop_*: descriptors, timers and signals. Descriptor
callbacks return void. Timer IDs are 64 bits and never reused; a zero
delay runs in the next step. A nested step or run fails with EBUSY, a
step off the loop's thread with EPERM, and a quit made before a run ends
it at once. An interrupted wait keeps its deadline. Creating a loop
fails when it cannot make its wake pipe.
- The display drives the loop through prepare, wait and check hooks
instead of wrapping its step. Wayland finishes its read before any
callback runs, so loop callbacks may create surfaces and do roundtrips.
Readiness (queued events, an owed REFRESH) is derived in the step, so
the wait never blocks over pending work. A draw that cannot proceed for
want of a buffer is no longer counted as work.
- yasl_init takes struct yasl_options. With loop and on_event, each step
delivers events to on_event and yasl_wait_event fails with EBUSY.
EALREADY only for the same options, EBUSY for others.
- yasl_surface_request_frame: a REFRESH once the window can show a new
frame, for pacing animation.
- DISPLAY_LOST reports whether the display reconnects. Pull waits still
fail with ENOTCONN after a final loss.
- Events pushed from another thread wake the loop.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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On a real compositor, input from the user and focus-stealing
prevention reach the test window. Drain real events before checking
the order of pushed ones, check only that gaining focus does not reset
input, and accept ESTALE for a primary selection offered while the new
window lacks keyboard focus.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Integration tests now expect ESTALE from move, resize, window menu,
drag and popups when nothing presses a button, and the X11 input test
expects the same from the window menu and move.
Resolving the previous commit's merge also made the direct SHM path
check the window's own visual (possibly 32-bit ARGB) and dropped the
held-button check from place_under_pointer, which yasl.h never asked
for.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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- Wayland: a touch contact is a press for move, resize, menu and drag
again, and a compositor without xdg-system-bell reports ENOTSUP.
- yasl_surface_set_cursor no longer reports a stale errno.
- The X11 input test expects the TIMESTAMP and MULTIPLE targets and
drives an INCR transfer instead of expecting INCR to be rejected.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Add tests/common/test_public_api.c: before yasl_init, argument errors are reported first, owner-thread calls fail with ENODEV, queries return their documented fallbacks, yasl_drop_next_path parses a crafted text/uri-list, yasl_get_system_string follows its length and NUL rules, and yasl_wake is a no-op with no display.
Build tests/test_header_c11.c as strict C11 and C17 with -pedantic-errors.
Extend the surface integration test, run on weston and Xwayland, with title, window requests, bell, desktop queries, drag cancel, input-less move/menu/drag calls, a popup (its parent's destroy must also remove it, checked through the display's surface list), and a clipboard round trip.
Run tests/x11/test_input.c in the X11 phase of run_surfaces.py through an optional trailing argument.
Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
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yasl.h now holds everything except Vulkan: 45 functions instead of 62,
and three installed headers instead of ten.
- One constructor: yasl_surface_create takes CPU, GL or NATIVE, with
zero-initialized GL options meaning 3.2 core, RGBA8, D24S8.
- Events carry action, mods, x, y and text at the top level; pen
positions are now logical like pointer positions.
- yasl_cpu_pixels/yasl_cpu_present draw into one persistent canvas,
cutting three full-frame copies per frame.
- yasl_surface_get_info, yasl_surface_request, YASL_CURSOR_LOCKED,
yasl_surface_set_text_input, yasl_surface_begin_move_resize and
yasl_surface_get_native replace groups of narrower calls.
- Interactive calls drop the decorative trigger event argument.
- yasl_wait_event returns 0 only on timeout or yasl_wake, the refresh
callback runs only in native modal loops, focus loss sends
INPUT_RESET, and a lost event no longer fails every later wait.
- Unsupported operations and bad arguments report ENOTSUP and EINVAL
instead of EIO; the keycodes header no longer needs C23.
- The shared library gets a versioned SONAME and version macros.
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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