Struct GpuContext 

pub struct GpuContext {

    pub device: Arc<Device>,
    pub queue: Arc<Queue>,
    pub config: RenderConfig,
    pub noise_lq_texture: Texture,
    pub noise_lq_view: TextureView,
    pub noise_mq_texture: Texture,
    pub noise_mq_view: TextureView,
    pub noise_hq_texture: Texture,
    pub noise_hq_view: TextureView,
    pub noisevol_lq_texture: Texture,
    pub noisevol_lq_view: TextureView,
    pub noisevol_hq_texture: Texture,
    pub noisevol_hq_view: TextureView,
    pub noise_texsizes: NoiseTexsizes,
}

Shared GPU resources: device + queue + the procedural noise pack that every chain samples from. Per-chain feedback textures (render, prev, final, blur1/2/3, blur_scratch) used to live here too; they have moved to ChainTextures so each rendering chain can own its own feedback loop without crossing the streams. The primary chain’s textures are still owned by GpuContext for convenience — secondary chains during transitions own their own ChainTextures inside crate::RenderChain.

Fields

device: Arc<Device>

WGPU device.

queue: Arc<Queue>

Command queue.

config: RenderConfig

Render configuration (resolution, format).

noise_lq_texture: Texture

noise_lq_view: TextureView

noise_mq_texture: Texture

noise_mq_view: TextureView

noise_hq_texture: Texture

noise_hq_view: TextureView

noisevol_lq_texture: Texture

noisevol_lq_view: TextureView

noisevol_hq_texture: Texture

noisevol_hq_view: TextureView

noise_texsizes: NoiseTexsizes

vec4(w, h, 1/w, 1/h) per texture, available to the wrapper as texsize_<name> constants without going through a uniform buffer.

Implementations

impl GpuContext

pub async fn new(config: RenderConfig) -> Result<Self>

Create a new GPU context.

pub fn from_device( device: Arc<Device>, queue: Arc<Queue>, config: RenderConfig, ) -> Self

Create a GPU context from an existing device and queue. Used when sharing one GPU device across multiple components (e.g. the GUI passes its surface device into the engine).

fn build(device: Arc<Device>, queue: Arc<Queue>, config: RenderConfig) -> Self

fn make_noise_2d( device: &Device, queue: &Queue, n: &NoiseTexture, label: &str, ) -> (Texture, TextureView)

Allocate an immutable 2D Rgba8Unorm noise texture and upload its bytes. Used for noise_lq / noise_mq / noise_hq — small fixed- resolution textures that live for the program’s lifetime and are never re-rendered.

fn make_noise_3d( device: &Device, queue: &Queue, n: &NoiseTexture, label: &str, ) -> (Texture, TextureView)

Allocate an immutable 3D Rgba8Unorm noise texture (volume).

pub fn comp_aux_views_for<'a>( &'a self, chain: &'a ChainTextures, ) -> CompAuxViews<'a>

Bundle the comp-pass auxiliary texture views for the given chain (blur pyramid + noise pack + previous-frame display) into a borrow group. The chain provides the per-chain views (blur + prev); this context provides the shared noise views.

pub fn set_resolution(&mut self, width: u32, height: u32)

Update the recorded resolution; the renderer is responsible for re-allocating each chain’s ChainTextures separately.

pub fn aspect_ratio(&self) -> f32

Get aspect ratio.