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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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31
examples/winit_wrong_sized_buffer.rs
View file

@ -1,3 +1,4 @@
use std::num::NonZeroU32;
use winit::event::{Event, WindowEvent};
use winit::event_loop::{ControlFlow, EventLoop};
use winit::window::WindowBuilder;
@ -31,21 +32,25 @@ fn main() {
match event {
Event::RedrawRequested(window_id) if window_id == window.id() => {
let buffer = (0..(BUFFER_WIDTH * BUFFER_HEIGHT))
.map(|index| {
let y = index / BUFFER_WIDTH;
let x = index % BUFFER_WIDTH;
let red = x % 255;
let green = y % 255;
let blue = (x * y) % 255;
surface
.resize(
NonZeroU32::new(BUFFER_WIDTH as u32).unwrap(),
NonZeroU32::new(BUFFER_HEIGHT as u32).unwrap(),
)
.unwrap();
let mut buffer = surface.buffer_mut().unwrap();
for y in 0..BUFFER_HEIGHT {
for x in 0..BUFFER_WIDTH {
let red = x as u32 % 255;
let green = y as u32 % 255;
let blue = (x as u32 * y as u32) % 255;
let color = blue | (green << 8) | (red << 16);
color as u32
})
.collect::<Vec<_>>();
surface.set_buffer(&buffer, BUFFER_WIDTH as u16, BUFFER_HEIGHT as u16);
buffer[y * BUFFER_WIDTH + x] = color;
}
}
buffer.present().unwrap();
}
Event::WindowEvent {
event: WindowEvent::CloseRequested,