When calling wlr_output_test an empty buffer might be created. This implicitly
changes the pending state of the output. Ensure that such a change is only
temporarily and clear such an empty buffer before returning the test result.
wlroots doesn't really follow the rule of keeping `create`/`destroy` and
`init`/`finish` functions in pairs, so the relevant doc section is
updated accordingly.
I am running a custom compiled version of chromium with a patch to get
it up and running on sway git at the moment, and in that development
build I compiled there is a bug where the browser will crash if you
try to open a file select dialog. When this crash happens, chromium will
not close, but instead will remain open and impossible to close unless
you send a SIGKILL signal to the process. However, sway will crash to
tty when you send the SIGKILL.
I have a hunch that when chromium is opening the file select dialog
it is creating some sort of a xdg toplevel surface. But it freezes
before it fully initializes the surface. When the SIGKILL signal is
given, sway/wlroots will try to free the xdg_toplevel surface but
because it hasn't fully initialized due to the frozen window, it
segfaults.
Don't be fooled by the assert, the assert is not firing, the surface
pointer is indeed NULL here.
* thread #1, name = 'sway', stop reason = signal SIGSEGV: invalid address (fault address: 0x28)
frame #0: 0x00007ffff78b9041 libwlroots.so.11`wlr_xdg_toplevel_set_parent(surface=0x0000000000000000, parent=0x0000000000000000) at wlr_xdg_toplevel.c:159:37
156
157 void wlr_xdg_toplevel_set_parent(struct wlr_xdg_surface *surface,
158 struct wlr_xdg_surface *parent) {
-> 159 assert(surface->role == WLR_XDG_SURFACE_ROLE_TOPLEVEL);
160 assert(!parent || parent->role == WLR_XDG_SURFACE_ROLE_TOPLEVEL);
161
162 if (surface->toplevel->parent) {
(lldb) up
error: sway {0x0003442a}: DIE has DW_AT_ranges(DW_FORM_sec_offset 0x67) attribute, but range extraction failed (invalid range list offset 0x67), please file a bug and attach the file at the start of this error message
error: sway {0x0003442a}: DIE has DW_AT_ranges(DW_FORM_sec_offset 0x67) attribute, but range extraction failed (invalid range list offset 0x67), please file a bug and attach the file at the start of this error message
frame #1: 0x00007ffff78e176e libwlroots.so.11`destroy_imported(imported=0x000055555626d570) at wlr_xdg_foreign_v1.c:154:3
151 wl_list_for_each_safe(child, child_tmp, &imported->children, link) {
152 struct wlr_xdg_surface *xdg_child =
153 wlr_xdg_surface_from_wlr_surface(child->surface);
-> 154 wlr_xdg_toplevel_set_parent(xdg_child, NULL);
155 }
156
157 wl_list_remove(&imported->exported_destroyed.link);
(lldb) up
frame #2: 0x00007ffff78e1b9d libwlroots.so.11`xdg_imported_handle_resource_destroy(resource=0x00005555562555a0) at wlr_xdg_foreign_v1.c:280:2
277 struct wl_resource *resource) {
278 struct wlr_xdg_imported_v1 *imported = xdg_imported_from_resource(resource);
279 if (!imported) {
-> 280 return;
281 }
282
283 destroy_imported(imported);
(lldb) up
frame #3: 0x00007ffff794989a libwayland-server.so.0`___lldb_unnamed_symbol211 + 154
libwayland-server.so.0`___lldb_unnamed_symbol211:
-> 0x7ffff794989a <+154>: andl $0x1, %r13d
0x7ffff794989e <+158>: je 0x7ffff79498b0 ; <+176>
0x7ffff79498a0 <+160>: addq $0x8, %rsp
0x7ffff79498a4 <+164>: movl $0x1, %eax
(lldb) up
frame #4: 0x00007ffff794fec0 libwayland-server.so.0`___lldb_unnamed_symbol290 + 64
libwayland-server.so.0`___lldb_unnamed_symbol290:
-> 0x7ffff794fec0 <+64>: cmpl $0x1, %eax
0x7ffff794fec3 <+67>: jne 0x7ffff794fed3 ; <+83>
0x7ffff794fec5 <+69>: addq $0x8, %rbx
0x7ffff794fec9 <+73>: cmpq %rbx, %r13
(lldb) up
frame #5: 0x00007ffff79503e0 libwayland-server.so.0`___lldb_unnamed_symbol300 + 32
libwayland-server.so.0`___lldb_unnamed_symbol300:
-> 0x7ffff79503e0 <+32>: cmpl $0x1, %eax
0x7ffff79503e3 <+35>: je 0x7ffff79503f0 ; <+48>
0x7ffff79503e5 <+37>: popq %rbx
0x7ffff79503e6 <+38>: popq %r12
(lldb) up
frame #6: 0x00007ffff794a30e libwayland-server.so.0`wl_client_destroy + 126
libwayland-server.so.0`wl_client_destroy:
-> 0x7ffff794a30e <+126>: movq %r12, %rdi
0x7ffff794a311 <+129>: callq 0x7ffff7950150 ; ___lldb_unnamed_symbol293
0x7ffff794a317 <+135>: movq 0x8(%rbp), %rdi
0x7ffff794a31b <+139>: callq *0xdc77(%rip)
(lldb) up
frame #7: 0x00007ffff794a3f7 libwayland-server.so.0`___lldb_unnamed_symbol214 + 119
libwayland-server.so.0`___lldb_unnamed_symbol214:
-> 0x7ffff794a3f7 <+119>: movq 0x28(%rsp), %rax
0x7ffff794a3fc <+124>: subq %fs:0x28, %rax
0x7ffff794a405 <+133>: jne 0x7ffff794a727 ; <+935>
0x7ffff794a40b <+139>: addq $0x38, %rsp
(lldb) up
frame #8: 0x00007ffff794d1ca libwayland-server.so.0`wl_event_loop_dispatch + 202
libwayland-server.so.0`wl_event_loop_dispatch:
-> 0x7ffff794d1ca <+202>: addq $0xc, %r15
0x7ffff794d1ce <+206>: cmpq %r15, %rbp
0x7ffff794d1d1 <+209>: jne 0x7ffff794d1b8 ; <+184>
0x7ffff794d1d3 <+211>: movq 0x8(%rsp), %rcx
(lldb) up
frame #9: 0x00007ffff794ad37 libwayland-server.so.0`wl_display_run + 39
libwayland-server.so.0`wl_display_run:
-> 0x7ffff794ad37 <+39>: movl 0x8(%rbx), %eax
0x7ffff794ad3a <+42>: testl %eax, %eax
0x7ffff794ad3c <+44>: jne 0x7ffff794ad20 ; <+16>
0x7ffff794ad3e <+46>: popq %rbx
(lldb) up
frame #10: 0x000055555557689a sway`server_run(server=0x00005555555f26c0) at server.c:307:2
304 wlr_backend_destroy(server->backend);
305 return false;
306 }
-> 307
308 return true;
309 }
310
(lldb) up
frame #11: 0x0000555555575a93 sway`main(argc=3, argv=0x00007fffffffe978) at main.c:431:2
428 swaynag_show(&config->swaynag_config_errors);
429 }
430
-> 431 server_run(&server);
432
433 shutdown:
434 sway_log(SWAY_INFO, "Shutting down sway");
The wlroots APIs currently don't allow importing/uploading a buffer
during rendering operations. Scene-graph buffer nodes need to turn
their wlr_buffer into a wlr_texture at some point. It's not always
possible to do so at wlr_scene_buffer creation time because the
scene-graph may have zero outputs at this point, thus no way to
grab a wlr_renderer.
Instead, add scene-graph buffers to a pending list and try to import
them in wlr_scene_output_commit.
References: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3354
Commit 498f30aad1 changed the logic of
get_mapping() in types/wlr_cursor.c to use updated version of
wlr_output_layout_get_box(). However, the case where c_device isn't NULL
but doesn't have output or geometry mappings wasn't handled properly,
resulting in leaving the output value uninitialized. This commit fixes
`c_device != NULL` branch by returning from the function only when a
mapping is found.
Fixes https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3369
wl_subsurface::set_desync description states: "If cached state exists when
wl_surface.commit is called in desynchronized mode, the pending state is
added to the cached state, and applied as a whole."
This commit reintroduces an implementation of said behavior, previously
removed in 7daf6da9ac05be2cb74c0983e3caee0b21db75d4.
Strictly speaking, this logic isn't fully correct, as the cached state
and the pending state are applied individually instead, if the cached
state isn't locked by anything else. However, the end result is still
the same.
This commit fixes the issue with Firefox permission popups.
wp_viewporter protocol doesn't seem to say anything about damage, but
Firefox assumes that wp_viewport::set_source alone is enough to damage
the whole surface, and that assumption kinda makes sense, so let's do
that.
Currently the output enter event is never sent if the client has not
yet bound the output, which happens every time the compositor creates a
new output.
To fix this, listen for the output bind event and inform clients as
if needed.
wlroots has historically been started as a Sway project, but these
days many wlroots contributors are working on other compositors.
wlroots now also has its own namespace on gitlab.freedesktop.org.
Let's remove the mention about Sway in the README, to make it clearer
that Sway isn't treated in a special manner when it comes to wlroots
development.
