mirror of
https://chromium.googlesource.com/crosvm/crosvm
synced 2025-02-10 20:19:07 +00:00
4fea399df9
crosvm is switching the import style to use one import per line. While more verbose, this will greatly reduce the occurence of merge conflicts going forward. Note: This is using a nightly feature of rustfmt. So it's a one-off re-format only. We are considering adding a nightly toolchain to enable the feature permanently. BUG=b:239937122 TEST=CQ Change-Id: Id2dd4dbdc0adfc4f8f3dd1d09da1daafa2a39992 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3784345 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org> Tested-by: Dennis Kempin <denniskempin@google.com> Commit-Queue: Dennis Kempin <denniskempin@google.com>
28 lines
817 B
Rust
28 lines
817 B
Rust
use gpu_display::GpuDisplay;
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use gpu_display::SurfaceType;
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fn main() {
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let mut disp = GpuDisplay::open_x(None::<&str>).unwrap();
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let surface_id = disp
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.create_surface(None, 1280, 1024, SurfaceType::Scanout)
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.unwrap();
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let mem = disp.framebuffer(surface_id).unwrap();
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for y in 0..1024 {
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let mut row = [0u32; 1280];
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for (x, item) in row.iter_mut().enumerate() {
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let b = ((x as f32 / 1280.0) * 256.0) as u32;
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let g = ((y as f32 / 1024.0) * 256.0) as u32;
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*item = b | (g << 8);
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}
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mem.as_volatile_slice()
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.offset(1280 * 4 * y)
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.unwrap()
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.copy_from(&row);
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}
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disp.flip(surface_id);
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while !disp.close_requested(surface_id) {
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disp.dispatch_events().unwrap();
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}
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}
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