44248477be
This function is useful for testing the window contents in certain cases. In addition, this means that we can now have reliable tests for softbuffer's actual functionality. Signed-off-by: John Nunley <jtnunley01@gmail.com> Co-authored-by: dAxpeDDa <daxpedda@gmail.com>
56 lines
1.6 KiB
Rust
56 lines
1.6 KiB
Rust
use softbuffer::{Context, Surface};
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use std::num::NonZeroU32;
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use winit::event_loop::EventLoopWindowTarget;
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fn all_red(elwt: &EventLoopWindowTarget<()>) {
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let window = winit::window::WindowBuilder::new()
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.with_title("all_red")
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.build(elwt)
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.unwrap();
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#[cfg(target_arch = "wasm32")]
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{
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use winit::platform::web::WindowExtWebSys;
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web_sys::window()
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.unwrap()
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.document()
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.unwrap()
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.body()
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.unwrap()
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.append_child(&window.canvas())
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.unwrap();
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}
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// winit does not wait for the window to be mapped... sigh
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#[cfg(not(target_arch = "wasm32"))]
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std::thread::sleep(std::time::Duration::from_millis(1));
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let context = unsafe { Context::new(elwt) }.unwrap();
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let mut surface = unsafe { Surface::new(&context, &window) }.unwrap();
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let size = window.inner_size();
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// Set the size of the surface to the size of the window.
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surface
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.resize(
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NonZeroU32::new(size.width).unwrap(),
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NonZeroU32::new(size.height).unwrap(),
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)
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.unwrap();
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// Set all pixels to red.
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let mut buffer = surface.buffer_mut().unwrap();
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buffer.fill(0x00FF0000);
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buffer.present().unwrap();
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// Check that all pixels are red.
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let screen_contents = match surface.fetch() {
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Err(softbuffer::SoftBufferError::Unimplemented) => return,
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cont => cont.unwrap(),
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};
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for pixel in screen_contents.iter() {
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assert_eq!(*pixel, 0x00FF0000);
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}
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}
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winit_test::main!(all_red);
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