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surface: attach sync sub-surface commits to parent commits

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This commit is contained in:
Julian Orth 2024-03-20 19:41:43 +01:00
parent 0c48247740
commit 300deecc7d
8 changed files with 268 additions and 52 deletions
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1
src/compositor.rs
View file

@ -221,6 +221,7 @@ fn start_compositor2(
double_click_interval_usec: Cell::new(400 * 1000),
double_click_distance: Cell::new(5),
create_default_seat: Cell::new(true),
subsurface_ids: Default::default(),
});
state.tracker.register(ClientId::from_raw(0));
create_dummy_output(&state);

156
src/ifs/wl_surface.rs
View file

@ -26,7 +26,7 @@ use {
},
wl_surface::{
cursor::CursorSurface,
wl_subsurface::{PendingSubsurfaceData, WlSubsurface},
wl_subsurface::{PendingSubsurfaceData, SubsurfaceId, WlSubsurface},
wp_fractional_scale_v1::WpFractionalScaleV1,
wp_tearing_control_v1::WpTearingControlV1,
wp_viewport::WpViewport,
@ -67,6 +67,7 @@ use {
jay_config::video::Transform,
std::{
cell::{Cell, RefCell},
collections::hash_map::{Entry, OccupiedEntry},
fmt::{Debug, Formatter},
mem,
ops::{Deref, DerefMut},
@ -188,12 +189,6 @@ struct BufferPoints {
y2: f32,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
enum CommitContext {
RootCommit,
ChildCommit,
}
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
enum CommitAction {
ContinueCommit,
@ -201,8 +196,7 @@ enum CommitAction {
}
trait SurfaceExt {
fn prepare_commit(&self, ctx: CommitContext, pending: &mut PendingState) -> CommitAction {
let _ = ctx;
fn commit_requested(self: Rc<Self>, pending: &mut PendingState) -> CommitAction {
let _ = pending;
CommitAction::ContinueCommit
}
@ -258,6 +252,17 @@ trait SurfaceExt {
fn into_xsurface(self: Rc<Self>) -> Option<Rc<XSurface>> {
None
}
fn consume_pending_child(
&self,
surface: &WlSurface,
child: SubsurfaceId,
consume: &mut dyn FnMut(
OccupiedEntry<SubsurfaceId, CommittedSubsurface>,
) -> Result<(), WlSurfaceError>,
) -> Result<(), WlSurfaceError> {
surface.pending.borrow_mut().consume_child(child, consume)
}
}
pub struct NoneSurfaceExt;
@ -287,6 +292,98 @@ struct PendingState {
subsurface: Option<Box<PendingSubsurfaceData>>,
xdg_surface: Option<Box<PendingXdgSurfaceData>>,
layer_surface: Option<Box<PendingLayerSurfaceData>>,
subsurfaces: AHashMap<SubsurfaceId, CommittedSubsurface>,
}
struct CommittedSubsurface {
subsurface: Rc<WlSubsurface>,
state: PendingState,
}
impl PendingState {
fn merge(&mut self, next: &mut Self, client: &Rc<Client>) {
// discard state
if next.buffer.is_some() {
if let Some(Some(prev)) = self.buffer.take() {
if !prev.destroyed() {
prev.send_release();
}
}
}
for fb in self.presentation_feedback.drain(..) {
fb.send_discarded();
let _ = client.remove_obj(&*fb);
}
// overwrite state
macro_rules! opt {
($name:ident) => {
if let Some(n) = next.$name.take() {
self.$name = Some(n);
}
};
}
opt!(buffer);
opt!(opaque_region);
opt!(input_region);
opt!(src_rect);
opt!(dst_size);
opt!(scale);
opt!(transform);
opt!(xwayland_serial);
opt!(tearing);
opt!(content_type);
{
let (dx1, dy1) = self.offset;
let (dx2, dy2) = mem::take(&mut next.offset);
self.offset = (dx1 + dx2, dy1 + dy2);
}
self.frame_request.append(&mut next.frame_request);
self.damage |= mem::take(&mut next.damage);
mem::swap(
&mut self.presentation_feedback,
&mut next.presentation_feedback,
);
macro_rules! merge_ext {
($name:ident) => {
if let Some(e) = &mut self.$name {
if let Some(n) = &mut next.$name {
e.merge(n);
}
} else {
self.$name = next.$name.take();
}
};
}
merge_ext!(subsurface);
merge_ext!(xdg_surface);
merge_ext!(layer_surface);
for (id, mut state) in next.subsurfaces.drain() {
match self.subsurfaces.entry(id) {
Entry::Occupied(mut o) => {
o.get_mut().state.merge(&mut state.state, client);
}
Entry::Vacant(v) => {
v.insert(state);
}
}
}
}
fn consume_child(
&mut self,
child: SubsurfaceId,
consume: impl FnOnce(
OccupiedEntry<SubsurfaceId, CommittedSubsurface>,
) -> Result<(), WlSurfaceError>,
) -> Result<(), WlSurfaceError> {
match self.subsurfaces.entry(child) {
Entry::Occupied(oe) => consume(oe),
_ => Ok(()),
}
}
}
#[derive(Default)]
@ -660,21 +757,14 @@ impl WlSurface {
Ok(())
}
fn do_commit(self: &Rc<Self>, ctx: CommitContext) -> Result<(), WlSurfaceError> {
let ext = self.ext.get();
let pending = &mut *self.pending.borrow_mut();
if ext.prepare_commit(ctx, pending) == CommitAction::AbortCommit {
return Ok(());
}
ext.clone().before_apply_commit(pending)?;
{
let children = self.children.borrow();
if let Some(children) = children.deref() {
for child in children.subsurfaces.values() {
child.surface.do_commit(CommitContext::ChildCommit)?;
}
}
fn apply_state(self: &Rc<Self>, pending: &mut PendingState) -> Result<(), WlSurfaceError> {
for (_, mut subsurface) in pending.subsurfaces.drain() {
subsurface
.subsurface
.surface
.apply_state(&mut subsurface.state)?;
}
self.ext.get().before_apply_commit(pending)?;
let mut scale_changed = false;
if let Some(scale) = pending.scale.take() {
scale_changed = true;
@ -869,14 +959,18 @@ impl WlSurface {
cursor.update_hardware_cursor();
}
}
ext.after_apply_commit(pending);
self.ext.get().after_apply_commit(pending);
self.client.state.damage();
Ok(())
}
fn commit(self: &Rc<Self>, parser: MsgParser<'_, '_>) -> Result<(), WlSurfaceError> {
let _req: Commit = self.parse(parser)?;
self.do_commit(CommitContext::RootCommit)?;
let ext = self.ext.get();
let pending = &mut *self.pending.borrow_mut();
if ext.commit_requested(pending) == CommitAction::ContinueCommit {
self.apply_state(pending)?;
}
Ok(())
}
@ -1051,6 +1145,18 @@ impl WlSurface {
consumer.send_feedback(fb);
}
}
fn consume_pending_child(
&self,
child: SubsurfaceId,
mut consume: impl FnMut(
OccupiedEntry<SubsurfaceId, CommittedSubsurface>,
) -> Result<(), WlSurfaceError>,
) -> Result<(), WlSurfaceError> {
self.ext
.get()
.consume_pending_child(self, child, &mut consume)
}
}
object_base! {

125
src/ifs/wl_surface/wl_subsurface.rs
View file

@ -2,7 +2,7 @@ use {
crate::{
client::ClientError,
ifs::wl_surface::{
CommitAction, CommitContext, PendingState, StackElement, SurfaceExt, SurfaceRole,
CommitAction, CommittedSubsurface, PendingState, StackElement, SurfaceExt, SurfaceRole,
WlSurface, WlSurfaceError, WlSurfaceId,
},
leaks::Tracker,
@ -10,7 +10,8 @@ use {
rect::Rect,
utils::{
buffd::{MsgParser, MsgParserError},
linkedlist::LinkedNode,
clonecell::CloneCell,
linkedlist::{LinkedNode, NodeRef},
numcell::NumCell,
option_ext::OptionExt,
},
@ -18,6 +19,8 @@ use {
},
std::{
cell::{Cell, RefCell, RefMut},
collections::hash_map::{Entry, OccupiedEntry},
mem,
ops::Deref,
rc::Rc,
},
@ -29,14 +32,18 @@ const BAD_SURFACE: u32 = 0;
const MAX_SUBSURFACE_DEPTH: u32 = 100;
linear_ids!(SubsurfaceIds, SubsurfaceId, u64);
pub struct WlSubsurface {
id: WlSubsurfaceId,
unique_id: SubsurfaceId,
pub surface: Rc<WlSurface>,
pub(super) parent: Rc<WlSurface>,
pub position: Cell<Rect>,
sync_requested: Cell<bool>,
sync_ancestor: Cell<bool>,
node: RefCell<Option<LinkedNode<StackElement>>>,
latest_node: CloneCell<Option<NodeRef<StackElement>>>,
depth: NumCell<u32>,
pub tracker: Tracker<Self>,
}
@ -47,17 +54,17 @@ pub struct PendingSubsurfaceData {
position: Option<(i32, i32)>,
}
fn update_children_sync(surface: &WlSubsurface, sync: bool) {
let children = surface.surface.children.borrow();
if let Some(children) = &*children {
for child in children.subsurfaces.values() {
let was_sync = child.sync();
child.sync_ancestor.set(sync);
let is_sync = child.sync();
if was_sync != is_sync {
update_children_sync(child, sync);
}
impl PendingSubsurfaceData {
pub fn merge(&mut self, next: &mut Self) {
macro_rules! opt {
($name:ident) => {
if let Some(n) = next.$name.take() {
self.$name = Some(n);
}
};
}
opt!(node);
opt!(position);
}
}
@ -85,12 +92,14 @@ impl WlSubsurface {
pub fn new(id: WlSubsurfaceId, surface: &Rc<WlSurface>, parent: &Rc<WlSurface>) -> Self {
Self {
id,
unique_id: surface.client.state.subsurface_ids.next(),
surface: surface.clone(),
parent: parent.clone(),
position: Cell::new(Default::default()),
sync_requested: Cell::new(false),
sync_ancestor: Cell::new(false),
node: RefCell::new(None),
latest_node: Default::default(),
depth: NumCell::new(0),
tracker: Default::default(),
}
@ -133,6 +142,7 @@ impl WlSubsurface {
sub_surface: self.clone(),
})
};
self.latest_node.set(Some(node.to_ref()));
self.pending().node = Some(node);
self.surface.set_toplevel(self.parent.toplevel.get());
self.sync_ancestor.set(sync_ancestor);
@ -145,8 +155,12 @@ impl WlSubsurface {
fn destroy(&self, parser: MsgParser<'_, '_>) -> Result<(), WlSubsurfaceError> {
let _req: Destroy = self.surface.client.parse(self, parser)?;
self.surface.unset_ext();
self.parent.consume_pending_child(self.unique_id, |oe| {
self.surface.apply_state(&mut oe.remove().state)
})?;
self.surface.pending.borrow_mut().subsurface.take();
*self.node.borrow_mut() = None;
self.latest_node.take();
{
let mut children = self.parent.children.borrow_mut();
if let Some(children) = &mut *children {
@ -193,18 +207,16 @@ impl WlSubsurface {
Some(s) => s,
_ => return Err(WlSubsurfaceError::NotASibling(sibling, self.surface.id)),
};
let node = match &sibling.pending().node {
Some(n) => n.to_ref(),
_ => match sibling.node.borrow().deref() {
Some(n) => n.to_ref(),
_ => return Ok(()),
},
let sibling_node = match sibling.latest_node.get() {
Some(n) => n,
_ => return Ok(()),
};
match above {
true => node.append(element),
_ => node.prepend(element),
true => sibling_node.append(element),
_ => sibling_node.prepend(element),
}
};
self.latest_node.set(Some(node.to_ref()));
self.pending().node.replace(node);
}
Ok(())
@ -226,24 +238,56 @@ impl WlSubsurface {
self.sync_requested.get() || self.sync_ancestor.get()
}
fn update_sync(&self, sync: bool) {
fn update_sync(&self, sync: bool) -> Result<(), WlSurfaceError> {
let was_sync = self.sync();
self.sync_requested.set(sync);
let is_sync = self.sync();
if was_sync != is_sync {
update_children_sync(self, is_sync);
self.handle_sync_change(is_sync)?;
}
Ok(())
}
fn handle_sync_change(&self, is_sync: bool) -> Result<(), WlSurfaceError> {
if !is_sync {
self.on_desync()?;
}
let children = self.surface.children.borrow();
if let Some(children) = &*children {
for child in children.subsurfaces.values() {
let was_sync = child.sync();
child.sync_ancestor.set(is_sync);
let is_sync = child.sync();
if was_sync != is_sync {
child.handle_sync_change(is_sync)?;
}
}
}
Ok(())
}
fn on_desync(&self) -> Result<(), WlSurfaceError> {
let committed = self
.parent
.pending
.borrow_mut()
.subsurfaces
.remove(&self.unique_id);
if let Some(mut ps) = committed {
self.surface.apply_state(&mut ps.state)?;
}
Ok(())
}
fn set_sync(&self, parser: MsgParser<'_, '_>) -> Result<(), WlSubsurfaceError> {
let _req: SetSync = self.surface.client.parse(self, parser)?;
self.update_sync(true);
self.update_sync(true)?;
Ok(())
}
fn set_desync(&self, parser: MsgParser<'_, '_>) -> Result<(), WlSubsurfaceError> {
let _req: SetDesync = self.surface.client.parse(self, parser)?;
self.update_sync(false);
self.update_sync(false)?;
Ok(())
}
}
@ -262,15 +306,27 @@ object_base! {
impl Object for WlSubsurface {
fn break_loops(&self) {
*self.node.borrow_mut() = None;
self.latest_node.take();
}
}
simple_add_obj!(WlSubsurface);
impl SurfaceExt for WlSubsurface {
fn prepare_commit(&self, ctx: CommitContext, _pending: &mut PendingState) -> CommitAction {
if ctx == CommitContext::RootCommit && self.sync() {
log::debug!("Aborting commit due to sync");
fn commit_requested(self: Rc<Self>, pending: &mut PendingState) -> CommitAction {
if self.sync() {
let mut parent_pending = self.parent.pending.borrow_mut();
match parent_pending.subsurfaces.entry(self.unique_id) {
Entry::Occupied(mut o) => {
o.get_mut().state.merge(pending, &self.surface.client);
}
Entry::Vacant(v) => {
v.insert(CommittedSubsurface {
subsurface: self.clone(),
state: mem::take(&mut *pending),
});
}
}
return CommitAction::AbortCommit;
}
CommitAction::ContinueCommit
@ -301,6 +357,21 @@ impl SurfaceExt for WlSubsurface {
fn into_subsurface(self: Rc<Self>) -> Option<Rc<WlSubsurface>> {
Some(self)
}
fn consume_pending_child(
&self,
surface: &WlSurface,
child: SubsurfaceId,
consume: &mut dyn FnMut(
OccupiedEntry<SubsurfaceId, CommittedSubsurface>,
) -> Result<(), WlSurfaceError>,
) -> Result<(), WlSurfaceError> {
self.parent
.consume_pending_child(self.unique_id, |mut oe| {
oe.get_mut().state.consume_child(child, &mut *consume)
})?;
surface.pending.borrow_mut().consume_child(child, consume)
}
}
#[derive(Debug, Error)]

13
src/ifs/wl_surface/xdg_surface.rs
View file

@ -79,6 +79,19 @@ pub struct PendingXdgSurfaceData {
geometry: Option<Rect>,
}
impl PendingXdgSurfaceData {
pub fn merge(&mut self, next: &mut Self) {
macro_rules! opt {
($name:ident) => {
if let Some(n) = next.$name.take() {
self.$name = Some(n);
}
};
}
opt!(geometry);
}
}
pub trait XdgSurfaceExt: Debug {
fn initial_configure(self: Rc<Self>) -> Result<(), XdgSurfaceError> {
Ok(())

19
src/ifs/wl_surface/zwlr_layer_surface_v1.rs
View file

@ -76,6 +76,25 @@ pub struct PendingLayerSurfaceData {
any: bool,
}
impl PendingLayerSurfaceData {
pub fn merge(&mut self, next: &mut Self) {
macro_rules! opt {
($name:ident) => {
if let Some(n) = next.$name.take() {
self.$name = Some(n);
}
};
}
opt!(size);
opt!(anchor);
opt!(exclusive_zone);
opt!(margin);
opt!(keyboard_interactivity);
opt!(layer);
self.any |= mem::take(&mut next.any);
}
}
impl ZwlrLayerSurfaceV1 {
pub fn new(
id: ZwlrLayerSurfaceV1Id,

3
src/it/tests/t0007_subsurface.rs
View file

@ -37,6 +37,7 @@ async fn test(run: Rc<TestRun>) -> Result<(), TestError> {
buffer.fill(Color::from_rgba_straight(255, 255, 255, 255));
child.attach(buffer.id)?;
child.commit()?;
parent.map().await?;
@ -45,10 +46,12 @@ async fn test(run: Rc<TestRun>) -> Result<(), TestError> {
client.compare_screenshot("1").await?;
sub.place_below(parent.surface.id)?;
child.commit()?;
parent.map().await?;
client.compare_screenshot("2").await?;
sub.place_above(parent.surface.id)?;
child.commit()?;
parent.map().await?;
client.compare_screenshot("1").await?;

1
src/it/tests/t0012_subsurface_focus.rs
View file

@ -29,6 +29,7 @@ async fn test(run: Rc<TestRun>) -> TestResult {
nss.set_position(100, 100)?;
let buffer = client.shm.create_buffer(100, 100)?;
ns.attach(buffer.id)?;
ns.commit()?;
run.cfg.set_fullscreen(ds.seat.id(), true)?;
client.sync().await;

2
src/state.rs
View file

@ -30,6 +30,7 @@ use {
wl_output::{OutputId, PersistentOutputState},
wl_seat::{SeatIds, WlSeatGlobal},
wl_surface::{
wl_subsurface::SubsurfaceIds,
zwp_idle_inhibitor_v1::{IdleInhibitorId, IdleInhibitorIds, ZwpIdleInhibitorV1},
NoneSurfaceExt, WlSurface,
},
@ -157,6 +158,7 @@ pub struct State {
pub double_click_interval_usec: Cell<u64>,
pub double_click_distance: Cell<i32>,
pub create_default_seat: Cell<bool>,
pub subsurface_ids: SubsurfaceIds,
}
// impl Drop for State {