sugarloaf 0.0.26

Sugarloaf is Rio rendering engine, desgined to be multiplatform. It is based on WebGPU, Rust library for Desktops and WebAssembly for Web (JavaScript). This project is created and maintaned for Rio terminal purposes but feel free to use it.
Documentation 
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pub struct Cache {
    texture: wgpu::Texture,
    pub(super) view: wgpu::TextureView,
}

impl Cache {
    pub fn new(device: &wgpu::Device, width: u32, height: u32) -> Cache {
        let texture = device.create_texture(&wgpu::TextureDescriptor {
            label: Some("text::Cache"),
            size: wgpu::Extent3d {
                width,
                height,
                depth_or_array_layers: 1,
            },
            view_formats: &[],
            dimension: wgpu::TextureDimension::D2,
            format: wgpu::TextureFormat::R8Unorm,
            usage: wgpu::TextureUsages::COPY_DST | wgpu::TextureUsages::TEXTURE_BINDING,
            mip_level_count: 1,
            sample_count: 1,
        });

        let view = texture.create_view(&wgpu::TextureViewDescriptor::default());

        Cache { texture, view }
    }

    pub fn update(
        &mut self,
        queue: &mut wgpu::Queue,
        offset: [u16; 2],
        size: [u16; 2],
        data: &[u8],
    ) {
        let width = size[0] as usize;
        let height = size[1] as usize;

        queue.write_texture(
            wgpu::ImageCopyTexture {
                texture: &self.texture,
                mip_level: 0,
                origin: wgpu::Origin3d {
                    x: u32::from(offset[0]),
                    y: u32::from(offset[1]),
                    z: 0,
                },
                aspect: wgpu::TextureAspect::All,
            },
            data,
            wgpu::ImageDataLayout {
                offset: 0,
                bytes_per_row: Some(width as u32),
                rows_per_image: Some(height as u32),
            },
            wgpu::Extent3d {
                width: size[0] as u32,
                height: size[1] as u32,
                depth_or_array_layers: 1,
            },
        );
    }
}