jay-compositor 1.15.0

The Jay compositor
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110

use crate::format::formats;
use crate::gfx_api::GfxFormat;
use crate::gfx_api::GfxWriteModifier;
use crate::ifs::jay_render_ctx::FORMATS_SINCE;
use crate::object::Version;
use crate::utils::bhash::BHashMap;
use crate::utils::clonecell::CloneCell;
use crate::video::Modifier;
use crate::wire::JayRenderCtxId;
use crate::wire::jay_render_ctx::*;
use crate::wl_usr::UsrCon;
use crate::wl_usr::usr_object::UsrObject;
use std::cell::RefCell;
use std::convert::Infallible;
use std::rc::Rc;
use uapi::OwnedFd;

pub struct UsrJayRenderCtx {
    pub id: JayRenderCtxId,
    pub con: Rc<UsrCon>,
    pub owner: CloneCell<Option<Rc<dyn UsrJayRenderCtxOwner>>>,
    pub version: Version,
    pub formats: RefCell<BHashMap<u32, GfxFormat>>,
}

pub trait UsrJayRenderCtxOwner {
    fn no_device(&self) {}
    fn device(&self, fd: Rc<OwnedFd>, server_formats: Option<BHashMap<u32, GfxFormat>>) {
        let _ = fd;
        let _ = server_formats;
    }
}

impl UsrJayRenderCtx {
    fn add_write_modifier(&self, format: u32, modifier: Modifier, needs_render_usage: bool) {
        if let Some(format) = self.formats.borrow_mut().get_mut(&format) {
            format
                .write_modifiers
                .insert(modifier, GfxWriteModifier { needs_render_usage });
        }
    }
}

impl JayRenderCtxEventHandler for UsrJayRenderCtx {
    type Error = Infallible;

    fn no_device(&self, _ev: NoDevice, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        self.formats.take();
        if let Some(owner) = self.owner.get() {
            owner.no_device();
        }
        Ok(())
    }

    fn device(&self, ev: Device, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        let formats = self.formats.take();
        let formats = (self.version >= FORMATS_SINCE).then_some(formats);
        if let Some(owner) = self.owner.get() {
            owner.device(ev.fd, formats);
        }
        Ok(())
    }

    fn read_modifier(&self, ev: ReadModifier, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        if let Some(format) = self.formats.borrow_mut().get_mut(&ev.format) {
            format.read_modifiers.insert(ev.modifier);
        }
        Ok(())
    }

    fn write_modifier(&self, ev: WriteModifier, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        self.add_write_modifier(ev.format, ev.modifier, true);
        Ok(())
    }

    fn format(&self, ev: Format, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        if let Some(format) = formats().get(&ev.format) {
            self.formats.borrow_mut().insert(
                ev.format,
                GfxFormat {
                    format,
                    read_modifiers: Default::default(),
                    write_modifiers: Default::default(),
                    supports_shm: false,
                },
            );
        }
        Ok(())
    }

    fn write_modifier2(&self, ev: WriteModifier2, _slf: &Rc<Self>) -> Result<(), Self::Error> {
        self.add_write_modifier(ev.format, ev.modifier, ev.needs_render_usage);
        Ok(())
    }
}

usr_object_base! {
    self = UsrJayRenderCtx = JayRenderCtx;
    version = self.version;
}

impl UsrObject for UsrJayRenderCtx {
    fn destroy(&self) {
        self.con.request(Destroy { self_id: self.id });
    }

    fn break_loops(&self) {
        self.owner.take();
    }
}