If the call to fdm_wayl() with EPOLLHUP was followed by calls to
wayl_roundtrip(), foot would hang.
The reason for this is that the EPOLLHUP handler in fdm_wayl() would
call wl_display_cancel_read().
wayl_roundtrip() also calls wl_display_cancel_read() (since we
normally have called wl_display_prepare_read()), before calling
wl_display_roundtrip().
When calling wl_display_cancel_read() two times in a row, without a
wl_display_prepare_read() in between, wl_display_roundtrip() hangs.
Fix by not calling wl_display_cancel_read() in fdm_wayl(). This
ensures our invariant holds: wl_display_prepare_read() is *always* in
effect outside of fdm_wayl().
Closes#651
We still use the primary font, but use a custom size, based on the
title bar’s height.
This fixes an issue where the window title could be way too small, or
way too big. And changed size when the terminal font size was changed.
Set clip region in render_osd(). This ensures we don’t step outside
the pixman buffer when rendering the glyphs.
Furthermore, don’t ignore the alpha channel in the background color.
Move render_osd() to make it visible to the render_csd_*() functions.
While we’re in scrollback search mode, the selection may be
cancelled (for example, if the application is scrolling out the
selected text). Trying to e.g. extend the search selection after this
has happened triggered a crash.
This fixes it by simply resetting the search match state when the
selection is cancelled.
Closes#644
Add stubs for shm_chain_new(), shm_chain_free() and shm_unref(). This
fixes ‘pgo’ linking failures in the ‘generate’ phase when doing a PGO
build with clang.
Closes#642
When a zero-sized buffer is requested, simply return a NULL buffer,
instead of crashing with a Wayland protocol error.
This makes it easier to request many buffers, where some may be
zero-sized, without having to pack the width/height and bufs arrays.
This breaks out the scrollback erasing logic for \E[3J from csi.c, and
moves it to the new function term_erase_scrollback(), and changes the
logic to calculate the start and end row (absolute) numbers of the
scrollback, and only iterate those, instead of iterating *all* rows,
filtering out those that are on-screen.
It also adds an intersection range check of the selection range, and
cancels the selection if it touches any of the deleted scrollback
rows.
This fixes a crash when trying to render the next frame, since the
selection now references rows that have been freed.
Closes#633
There may be buffers left, if their destruction has been
deferred. However, they should be on the 'deferred' list, not the
chain's buffer list.
If there are buffers left on the chain's list, that means someone
forgot to call shm_unref().
