forked from AbleOS/ableos
57 lines
1.7 KiB
Rust
57 lines
1.7 KiB
Rust
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use virtio_drivers::transport::Transport;
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use crate::arch::virtio::AbleosHal;
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use {embedded_graphics::pixelcolor::Rgb888, virtio_drivers::device::gpu::VirtIOGpu};
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use {
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able_graphics_library::raw_pixel::Display,
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embedded_graphics::prelude::*,
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limine::FramebufferRequest,
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spin::{Lazy, Mutex},
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};
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pub static DISPLAY: Lazy<Mutex<Display>> = Lazy::new(|| {
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static FB_REQ: FramebufferRequest = FramebufferRequest::new(0);
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let fb1 = &FB_REQ.get_response().get().unwrap().framebuffers()[0];
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let m = Mutex::new(Display {
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fb: fb1.address.as_ptr().unwrap().cast(),
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size: Size::new(fb1.width as u32, fb1.height as u32),
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color: Rgb888::WHITE,
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});
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log::info!("Graphics initialised");
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m
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});
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pub fn init() {
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Lazy::force(&DISPLAY);
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}
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pub fn virtio_gpu<T: Transport>(transport: T) {
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let mut gpu = VirtIOGpu::<AbleosHal, T>::new(transport).expect("failed to create gpu driver");
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let (width, height) = gpu.resolution().expect("failed to get resolution");
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let width = width as usize;
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let height = height as usize;
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log::info!("GPU resolution is {}x{}", width, height);
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let fb = gpu.setup_framebuffer().expect("failed to get fb");
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for y in 0..height {
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for x in 0..width {
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let idx = (y * width + x) * 4;
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fb[idx] = x as u8;
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fb[idx + 1] = y as u8;
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fb[idx + 2] = (x + y) as u8;
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}
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}
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gpu.flush().expect("failed to flush");
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//delay some time
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log::info!("virtio-gpu show graphics....");
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for _ in 0..100000 {
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for _ in 0..100000 {
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unsafe {
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core::arch::asm!("nop");
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}
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}
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}
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log::info!("virtio-gpu test finished");
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}
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