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Implement single-pixel buffer protocol
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,3 @@ | ||
| pub mod idle_notify; | ||
| pub mod screencopy; | ||
| pub mod single_pixel_buffer; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| use smithay::reexports::wayland_server::protocol::wl_buffer::{self, WlBuffer}; | ||
| use smithay::reexports::wayland_server::{ | ||
| Client, DataInit, Dispatch, DisplayHandle, GlobalDispatch, New, | ||
| }; | ||
| use smithay::wayland::buffer::BufferHandler; | ||
| use smithay::reexports::wayland_protocols::wp::single_pixel_buffer::v1::server::wp_single_pixel_buffer_manager_v1::{ | ||
| self, WpSinglePixelBufferManagerV1, | ||
| }; | ||
|
|
||
| use crate::protocols::single_pixel_buffer::{SinglePixelBufferState, SinglePixelBufferUserData}; | ||
|
|
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| impl<D> GlobalDispatch<WpSinglePixelBufferManagerV1, (), D> for SinglePixelBufferState | ||
| where | ||
| D: GlobalDispatch<WpSinglePixelBufferManagerV1, ()>, | ||
| D: Dispatch<WpSinglePixelBufferManagerV1, ()>, | ||
| D: 'static, | ||
| { | ||
| fn bind( | ||
| _state: &mut D, | ||
| _dh: &DisplayHandle, | ||
| _client: &Client, | ||
| resource: New<WpSinglePixelBufferManagerV1>, | ||
| _global_data: &(), | ||
| data_init: &mut DataInit<'_, D>, | ||
| ) { | ||
| data_init.init(resource, ()); | ||
| } | ||
| } | ||
|
|
||
| impl<D> Dispatch<WpSinglePixelBufferManagerV1, (), D> for SinglePixelBufferState | ||
| where | ||
| D: Dispatch<WpSinglePixelBufferManagerV1, ()>, | ||
| D: Dispatch<WlBuffer, SinglePixelBufferUserData>, | ||
| D: 'static, | ||
| { | ||
| fn request( | ||
| _state: &mut D, | ||
| _client: &Client, | ||
| _manager: &WpSinglePixelBufferManagerV1, | ||
| request: wp_single_pixel_buffer_manager_v1::Request, | ||
| _data: &(), | ||
| _dh: &DisplayHandle, | ||
| data_init: &mut DataInit<'_, D>, | ||
| ) { | ||
| match request { | ||
| wp_single_pixel_buffer_manager_v1::Request::CreateU32RgbaBuffer { | ||
| id: buffer, | ||
| r, | ||
| g, | ||
| b, | ||
| a, | ||
| } => { | ||
| data_init.init(buffer, SinglePixelBufferUserData { r, g, b, a }); | ||
| }, | ||
| wp_single_pixel_buffer_manager_v1::Request::Destroy => {}, | ||
| _ => unimplemented!(), | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl<D> Dispatch<WlBuffer, SinglePixelBufferUserData, D> for SinglePixelBufferState | ||
| where | ||
| D: Dispatch<WlBuffer, SinglePixelBufferUserData>, | ||
| D: BufferHandler, | ||
| { | ||
| fn request( | ||
| data: &mut D, | ||
| _client: &Client, | ||
| buffer: &wl_buffer::WlBuffer, | ||
| request: wl_buffer::Request, | ||
| _udata: &SinglePixelBufferUserData, | ||
| _dh: &DisplayHandle, | ||
| _data_init: &mut DataInit<'_, D>, | ||
| ) { | ||
| match request { | ||
| wl_buffer::Request::Destroy => { | ||
| data.buffer_destroyed(buffer); | ||
| }, | ||
| _ => unreachable!(), | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| //! Utilities for handling the `wp_single_pixel_buffer` protocol | ||
| use _single_pixel_buffer::v1::server::wp_single_pixel_buffer_manager_v1::WpSinglePixelBufferManagerV1; | ||
| use smithay::reexports::wayland_protocols::wp::single_pixel_buffer as _single_pixel_buffer; | ||
| use smithay::reexports::wayland_server::protocol::wl_buffer::WlBuffer; | ||
| use smithay::reexports::wayland_server::{Dispatch, DisplayHandle, GlobalDispatch, Resource}; | ||
|
|
||
| mod handlers; | ||
|
|
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| /// Delegate state of WpSinglePixelBuffer protocol | ||
| #[derive(Debug)] | ||
| pub struct SinglePixelBufferState; | ||
|
|
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| impl SinglePixelBufferState { | ||
| /// Create a new [`WpSinglePixelBufferManagerV1`] global | ||
| // | ||
| /// The id provided by [`SinglePixelBufferState::global`] may be used to | ||
| /// remove or disable this global in the future. | ||
| pub fn new<D>(display: &DisplayHandle) -> Self | ||
| where | ||
| D: GlobalDispatch<WpSinglePixelBufferManagerV1, ()>, | ||
| D: Dispatch<WpSinglePixelBufferManagerV1, ()>, | ||
| D: 'static, | ||
| { | ||
| display.create_global::<D, WpSinglePixelBufferManagerV1, _>(1, ()); | ||
|
|
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| Self | ||
| } | ||
| } | ||
|
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| /// User data of `WlBuffer` backed by single pixel | ||
| #[derive(Debug)] | ||
| pub struct SinglePixelBufferUserData { | ||
| /// Value of the buffer's red channel | ||
| pub r: u32, | ||
| /// Value of the buffer's green channel | ||
| pub g: u32, | ||
| /// Value of the buffer's blue channel | ||
| pub b: u32, | ||
| /// Value of the buffer's alpha channel | ||
| pub a: u32, | ||
| } | ||
|
|
||
| impl SinglePixelBufferUserData { | ||
| /// Check if pixel has alpha | ||
| pub fn has_alpha(&self) -> bool { | ||
| self.a != u32::MAX | ||
| } | ||
|
|
||
| /// RGAB8888 color buffer | ||
| pub fn rgba8888(&self) -> [u8; 4] { | ||
| let divisor = u32::MAX / 255; | ||
|
|
||
| [ | ||
| (self.r / divisor) as u8, | ||
| (self.g / divisor) as u8, | ||
| (self.b / divisor) as u8, | ||
| (self.a / divisor) as u8, | ||
| ] | ||
| } | ||
| } | ||
|
|
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| /// Error that can occur when accessing an SinglePixelBuffer | ||
| #[derive(Debug)] | ||
| pub enum BufferAccessError { | ||
| /// This buffer is not managed by the SinglePixelBuffer handler | ||
| NotManaged, | ||
| } | ||
|
|
||
| /// Gets the data of a `SinglePixelBuffer` backed [`WlBuffer`]. | ||
| pub fn get_single_pixel_buffer( | ||
| buffer: &WlBuffer, | ||
| ) -> Result<&SinglePixelBufferUserData, BufferAccessError> { | ||
| buffer.data::<SinglePixelBufferUserData>().ok_or(BufferAccessError::NotManaged) | ||
| } | ||
|
|
||
| /// Macro used to delegate `WpSinglePixelBuffer` events | ||
| #[macro_export] | ||
| macro_rules! delegate_single_pixel_buffer { | ||
| ($(@<$( $lt:tt $( : $clt:tt $(+ $dlt:tt )* )? ),+>)? $ty: ty) => { | ||
| smithay::reexports::wayland_server::delegate_global_dispatch!($(@< $( $lt $( : $clt $(+ $dlt )* )? ),+ >)? $ty: [ | ||
| smithay::reexports::wayland_protocols::wp::single_pixel_buffer::v1::server::wp_single_pixel_buffer_manager_v1::WpSinglePixelBufferManagerV1: () | ||
| ] => $crate::protocols::single_pixel_buffer::SinglePixelBufferState); | ||
|
|
||
| smithay::reexports::wayland_server::delegate_dispatch!($(@< $( $lt $( : $clt $(+ $dlt )* )? ),+ >)? $ty: [ | ||
| smithay::reexports::wayland_protocols::wp::single_pixel_buffer::v1::server::wp_single_pixel_buffer_manager_v1::WpSinglePixelBufferManagerV1: () | ||
| ] => $crate::protocols::single_pixel_buffer::SinglePixelBufferState); | ||
| smithay::reexports::wayland_server::delegate_dispatch!($(@< $( $lt $( : $clt $(+ $dlt )* )? ),+ >)? $ty: [ | ||
| smithay::reexports::wayland_server::protocol::wl_buffer::WlBuffer: $crate::protocols::single_pixel_buffer::SinglePixelBufferUserData | ||
| ] => $crate::protocols::single_pixel_buffer::SinglePixelBufferState); | ||
| }; | ||
| } |
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