engvis-renderer 0.1.0

pub struct DepthTexture {
    pub texture: wgpu::Texture,
    pub view: wgpu::TextureView,
    pub format: wgpu::TextureFormat,
    pub sample_count: u32,
}

impl DepthTexture {
    pub const FORMAT: wgpu::TextureFormat = wgpu::TextureFormat::Depth32Float;

    pub fn new(device: &wgpu::Device, width: u32, height: u32, sample_count: u32) -> Self {
        let size = wgpu::Extent3d {
            width: width.max(1),
            height: height.max(1),
            depth_or_array_layers: 1,
        };
        let texture = device.create_texture(&wgpu::TextureDescriptor {
            label: Some("Depth Texture"),
            size,
            mip_level_count: 1,
            sample_count,
            dimension: wgpu::TextureDimension::D2,
            format: Self::FORMAT,
            usage: wgpu::TextureUsages::RENDER_ATTACHMENT | wgpu::TextureUsages::TEXTURE_BINDING,
            view_formats: &[],
        });
        let view = texture.create_view(&wgpu::TextureViewDescriptor::default());

        Self {
            texture,
            view,
            format: Self::FORMAT,
            sample_count,
        }
    }

    pub fn resize(&mut self, device: &wgpu::Device, width: u32, height: u32) {
        let sample_count = self.sample_count;
        *self = Self::new(device, width, height, sample_count);
    }
}