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Owned pixel buffer for no-copy presentation

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This is based on the API that will be used for no-copy presentation. But
wraps it in `set_buffer`.

This also fixes the Wayland buffer code to set `self.width` and
`self.height` on resize, and set the length of the shared memory file
when the buffer is created.

Co-authored-by: jtnunley <jtnunley01@gmail.com>
This commit is contained in:
Ian Douglas Scott 2023-04-06 00:30:59 -07:00 • committed by GitHub
parent e5d546ff9e
commit a09e4cf679
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 1176 additions and 438 deletions
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19
examples/libxcb.rs
View file

@ -3,6 +3,7 @@
#[cfg(all(feature = "x11", any(target_os = "linux", target_os = "freebsd")))]
mod example {
use raw_window_handle::{RawDisplayHandle, RawWindowHandle, XcbDisplayHandle, XcbWindowHandle};
use std::num::NonZeroU32;
use x11rb::{
connection::Connection,
protocol::{
@ -12,6 +13,8 @@ mod example {
xcb_ffi::XCBConnection,
};
const RED: u32 = 255 << 16;
pub(crate) fn run() {
// Create a new XCB connection
let (conn, screen) = XCBConnection::connect(None).expect("Failed to connect to X server");
@ -96,13 +99,15 @@ mod example {
match event {
Event::Expose(_) => {
// Draw a width x height red rectangle.
let red = 255 << 16;
let source = std::iter::repeat(red)
.take((width as usize * height as usize) as _)
.collect::<Vec<_>>();
// Draw the buffer.
surface.set_buffer(&source, width, height);
surface
.resize(
NonZeroU32::new(width.into()).unwrap(),
NonZeroU32::new(height.into()).unwrap(),
)
.unwrap();
let mut buffer = surface.buffer_mut().unwrap();
buffer.fill(RED);
buffer.present().unwrap();
}
Event::ConfigureNotify(configure_notify) => {
width = configure_notify.width;