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https://chromium.googlesource.com/crosvm/crosvm
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78f62a44e7
generated files and a list of excluded files are skipped. Others are fixed to include the missing header. BUG=b:246579983 TEST=./tools/health-check --all copyright_header Change-Id: I13e9bf79df18789f1ed4b83fc47c0c2e080d70a8 Reviewed-on: https://chromium-review.googlesource.com/c/crosvm/crosvm/+/3894240 Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
32 lines
963 B
Rust
32 lines
963 B
Rust
// Copyright 2022 The ChromiumOS Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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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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