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| author | Po Lu <luangruo@yahoo.com> | 2022-07-29 16:20:32 +0800 |
|---|---|---|
| committer | Po Lu <luangruo@yahoo.com> | 2022-07-29 17:27:36 +0800 |
| commit | ee93a06b8b1922b31e12cfe60566779f185ddeba (patch) | |
| tree | 31d1e4e2ec3c64ea78c077b91a5546e6322ef274 /src/xfns.c | |
| parent | db03eda6369a9d4af3c72a8ab6ec29e3cc58acc4 (diff) | |
| download | emacs-ee93a06b8b1922b31e12cfe60566779f185ddeba.tar.gz | |
Implement monitor refresh rate synchronization on X
* src/xfns.c (x_set_parent_frame, Fx_create_frame): Disable
vsync on child and embedded frames.
* src/xmenu.c (x_menu_show): Fix XMenu position calculation in
child frames.
* src/xterm.c (x_sync_is_frame_drawn_event)
(x_sync_wait_for_frame_drawn_event): New functions.
(x_sync_update_begin): Wait for frame to be drawn if not double
buffered.
(x_sync_update_finish): Set FRAME_X_WAITING_FOR_DRAW (f).
(show_back_buffer): Wait for frame to be drawn before flipping
buffers.
(XTframe_up_to_date): Set FRAME_X_WAITING_FOR_DRAW if bumped.
(handle_one_xevent): Handle frame drawn events.
* src/xterm.h (struct x_output): New fields for frame dirtyness
and vsync.
Diffstat (limited to 'src/xfns.c')
| -rw-r--r-- | src/xfns.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/src/xfns.c b/src/xfns.c index 076cd97875a..579237068a2 100644 --- a/src/xfns.c +++ b/src/xfns.c @@ -976,6 +976,16 @@ x_set_parent_frame (struct frame *f, Lisp_Object new_value, Lisp_Object old_valu gdk_x11_window_set_frame_sync_enabled (window, FALSE); } #endif + +#if defined HAVE_XSYNC && !defined USE_GTK + /* Frame synchronization can't be used in child frames since + they are not directly managed by the compositing manager. + Re-enabling vsync in former child frames also leads to + inconsistent display. In addition, they can only be updated + outside of a toplevel frame. */ + FRAME_X_OUTPUT (f)->use_vsync_p = false; + FRAME_X_WAITING_FOR_DRAW (f) = false; +#endif unblock_input (); fset_parent_frame (f, new_value); @@ -5113,7 +5123,10 @@ This function is an internal primitive--use `make-frame' instead. */) } #ifdef HAVE_XSYNC - if (dpyinfo->xsync_supported_p) + if (dpyinfo->xsync_supported_p + /* Frame synchronization isn't supported in child frames. */ + && NILP (parent_frame) + && !f->output_data.x->explicit_parent) { #ifndef HAVE_GTK3 XSyncValue initial_value; @@ -5149,6 +5162,12 @@ This function is an internal primitive--use `make-frame' instead. */) ((STRINGP (value) && !strcmp (SSDATA (value), "extended")) ? 2 : 1)); #endif + +#ifndef USE_GTK + if (FRAME_X_EXTENDED_COUNTER (f)) + FRAME_X_OUTPUT (f)->use_vsync_p + = x_wm_supports (f, dpyinfo->Xatom_net_wm_frame_drawn); +#endif } #endif |