* configure.ac (HAVE_XSYNC): Also check for XSyncTriggerFence.
* src/xfns.c (Fx_create_frame): Create fences.
* src/xterm.c (x_atom_refs): New atom.
(x_sync_trigger_fence, x_sync_init_fences, x_sync_free_fences):
New functions.
(x_sync_update_finish): Trigger the appropriate fence.
(x_free_frame_resources): Free fences.
* src/xterm.h (struct x_display_info): New atom
`_NET_WM_SYNC_FENCES'.
(struct x_output): New field `sync_fences'.
* src/lread.c (read_string_literal): Since we're now
byte-compiling the loaddefs files (so doc strings come from the
.elc files), remove the hack that make this return 0 when the
string starts with "\\n".
* lisp/Makefile.in (all): Add "autoloads", which now otherwise
won't be done.
($(lisp)/loaddefs.el): Remove this target, since it's always done,
and would then trigger a re-compilation of loaddefs.elc.
* lisp/loadup.el: Load loaddefs.elc (if it exists).
* lisp/emacs-lisp/loaddefs-gen.el (loaddefs-generate): Don't
include no-byte-compile cookies in the Emacs build.
* src/Makefile.in ($(pdmp)): Depend on loaddefs.elc to ensure that
it's built by this point.
($(etc)/DOC): Don't scan loaddefs.el for doc strings, since they
are now picked up from the .elc file (bug#53024).
* src/xterm.c (x_sync_get_monotonic_time): Use that if
available.
(x_display_set_last_user_time): Compute an offset between the
monotonic time and the X server time if they are not identical.
* src/xterm.h (struct x_display_info): New field
`server_time_offset'.
* src/xterm.c (x_sync_get_monotonic_time)
(x_sync_current_monotonic_time, x_sync_note_frame_times): New
functions.
(x_sync_wait_for_frame_drawn_event, x_sync_update_begin)
(x_sync_handle_frame_drawn): Note frame times.
(x_display_set_last_user_time): Check if the X server time is
probably the same as CLOCK_MONOTONIC.
* src/xterm.h (struct x_display_info, struct x_output): New
fields and flags for clock handling and frame times.
* src/xterm.c (XFlush): Remove define to 0.
(x_clear_frame, x_scroll_run, x_draw_window_cursor)
(x_free_frame_resources): Remove calls to XFlush where it is not
really necessary. Leave the calls that actually are intact.
* src/editfns.c (Fwiden, Fnarrow_to_region):
* doc/lispref/positions.texi (Narrowing): Explain when
'narrow-to-region' and 'widen' might have no effect.
* src/xterm.c (x_find_monitors_changed_event): New function.
(x_monitors_changed_cb, handle_one_xevent): Look through the
entire event queue to skip delivering monitor change events.
* src/editfns.c (narrow_to_region_internal): New function, which
contains the body previously in 'Fnarrow_to_region' but accepts
a third argument.
(Fnarrow_to_region): Use the new function. Update the docstring.
(Fwiden): Update the docstring.
* src/lisp.h: Prototype of the new function.
* src/xdisp.c (handle_fontified_prop): Use the new function instead
of 'Fnarrow_to_region'.
* src/process.c (Finternal_default_process_filter):
* src/lread.c (readevalloop): Remove the third argument to
'Fnarrow_to_region'.
* src/bytecode.c (exec_byte_code):
* lisp/emacs-lisp/comp.el (comp-limplify-lap-inst):
* lisp/emacs-lisp/bytecomp.el: Restore the statu quo ante.
* etc/NEWS: Remove the entry about the new optional argument.
* doc/lispref/positions.texi (Narrowing): Update the documentation.
* src/xsettings.c (xft_settings_event):
* src/xsettings.h: Return if the event was handled.
* src/xterm.c (handle_one_xevent): If it was, don't handle the
event any further.
* src/xterm.c (x_dnd_free_toplevels, x_composite_image):
Use UNINIT for initialization needed only to pacify GCC.
(x_dnd_free_toplevels): Add an eassume to pacify GCC 12.1 x86-64
-Wanalyzer-null-dereference.
2022-07-31 Paul Eggert <eggert@cs.ucla.edu>
* src/timefns.c (decode_float_time): Assume T is finite.
All callers changed.
(decode_time_components): Assume FORM is not TIMEFORM_FLOAT.
All callers changed.
(decode_lisp_time): If the specified time is a float,
signal an error if it is not finite.
(Ffloat_time): If the specified time is a float,
simply return it.
Since time comparison says X == X, have time arithmetic behave
similarly for X - X. This should also be a bit faster due to not
having to test for floats and NaNs.
* src/timefns.c (time_arith, time_cmp):
Simplify by not worrying about NaNs, which are not time values.
(time_arith): Simplify by not worrying about subtracting nil from
nil; the caller now handles this.
(Ftime_subtract): Handle subtracting X from X specially.
* src/sysdep.c (make_lisp_s_us): Also define if HAVE_GETRUSAGE.
(Fget_internal_run_time): Don’t generate more precision than the
underlying primitives.
Instead of relying on a compositor to do the work, we simply
wait for VBLANK and hope that the update finishes soon enough.
* doc/lispref/frames.texi (Management Parameters): Document that
frame synchronization is now supported on Haiku.
* src/haiku_support.cc (class EmacsView): New field
`use_frame_synchronization'.
(FlipBuffers): Wait for vertical blanking period.
(be_set_use_frame_synchronization): New function.
* src/haiku_support.h: Update prototypes.
* src/haikufns.c (haiku_create_frame): Set
`use-frame-synchronization'.
(haiku_set_use_frame_synchronization)
(haiku_frame_parm_handlers): New param handler.
This variable and related functions have been obsolete since 23.1.
The last things to depend on this (fast-lock.el and lazy-lock.el) were
recently removed.
* src/dispextern.h (struct it): Delete field
'redisplay_end_trigger_charpos'.
* src/window.c (Fwindow_redisplay_end_trigger)
(Fset_window_redisplay_end_trigger): Delete defuns and corresponding
defsubrs for functions obsolete since 23.1.
* src/window.h (wset_redisplay_end_trigger): Delete function.
(GCALIGNED_STRUCT): Delete 'redisplay_end_trigger'.
* src/xdisp.c (run_redisplay_end_trigger_hook): Delete function.
(syms_of_xdisp) <redisplay_end_trigger_functions>: Delete
variable obsolete since 23.1.
(init_iterator, next_element_from_buffer): Don't run or set above
deleted hook variable.
* lisp/subr.el: Delete obsoletion definitions for above deleted
defuns and variable.
* doc/lispref/hooks.texi (Standard Hooks):
* lisp/emacs-lisp/byte-opt.el (side-effect-free-fns):
* lisp/loadhist.el (unload-feature-special-hooks): Don't mention
above deleted variable.
* admin/coccinelle/window.cocci: Adjust for above changes.
* src/xterm.c (x_if_event): New function, like XIfEvent but with
a timeout.
(x_sync_wait_for_frame_drawn_event): Disable frame
synchronization if x_if_event times out after 1 second.
* src/xdisp.c (get_narrowed_begv, get_narrowed_zv): Add 'pos'
parameter.
(init_iterator): Add arguments to 'get_narrowed_begv' and
'get_narrowed_zv'.
(handle_fontified_prop): Recompute the narrowing when iterator
has moved outside of narrowing bounds.
* src/dispextern.h (get_narrowed_begv, get_narrowed_zv): Adapt
prototypes.
* src/composite.c (find_automatic_composition): Add argument
to 'get_narrowed_begv'.
* src/xterm.c (x_sync_wait_for_frame_drawn_event): Don't wait if
the frame is invisible. If it is mapped again the compositing
manager is obliged to send us another event, so we can wait in
that case.
(x_sync_update_begin, x_sync_update_finish): Handle extended
resize synchronization here.
(XTframe_up_to_date, handle_one_xevent): Save stuff here.
* src/xterm.h (struct x_output): New field
`resize_counter_value'.
