Struct CopyPresentPass 

pub struct CopyPresentPass { /* private fields */ }

The plain present pass for one surface: the frame, rendered into an intermediate of the swapchain’s own format, copied into the swapchain unconverted (see the module doc’s A plain copy).

Built once per surface configure, like UnpremultiplyPass: a pipeline for the swapchain’s format, the bind-group layout its program derived, and the one 16-byte instance the quad is drawn from.

Implementations

impl CopyPresentPass

pub fn new( device: &Device, format: TextureFormat, driver_cache: Option<&PipelineCache>, ) -> Self

Builds the pass for a format target, through a pipeline cache of its own exactly as UnpremultiplyPass::new does — a surface configure is not a frame, so the one pipeline is compiled here.

pub fn format(&self) -> TextureFormat

The target format this pass was built for — the swapchain’s own.

pub fn record( &self, device: &Device, queue: &Queue, encoder: &mut CommandEncoder, source_view: &TextureView, target_view: &TextureView, size: (u32, u32), timestamp_writes: Option<RenderPassTimestampWrites<'_>>, )

Records the copy into encoder: reads source_view (the intermediate the frame was rendered into, width x height like the swapchain) and writes it unconverted over the whole of target_view (the acquired swapchain texture). The caller submits encoder.

The instance is written through queue and lands ahead of the command buffer the caller submits, so a resize between frames is honoured by the very next one. The attachment is cleared rather than loaded, for UnpremultiplyPass::record’s reason. timestamp_writes is that method’s too.

pub fn layout_desc() -> PipelineLayoutDesc

This pass’s shape as the downlevel lint reads it — one bind group, one instance buffer of four u32 attributes, no uniform.

Trait Implementations

impl Debug for CopyPresentPass

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.