Struct SpriteBatch 

pub struct SpriteBatch { /* private fields */ }

Per-frame snapshot batch. Send + Sync so it can cross into the compositor thread via repose_render_wgpu::Callback.

Each batch id owns its pipelines/instances in CallbackResources (like FullscreenPass’s id map). Re-keying the atlas (a new BatchDesc or uploads_gen) drops its contents; the game re-fills it with the uploads that came with the new descriptor.

Implementations

impl SpriteBatch

pub fn new(desc: BatchDesc) -> SpriteBatch

pub fn with_id(id: impl Into<String>, desc: BatchDesc) -> SpriteBatch

pub fn id(&self) -> &str

pub fn clear(&mut self)

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn set_camera(&mut self, view_proj: Mat4)

View-projection matrix, y-down screen convention (see screen_camera).

pub fn upload(&mut self, upload: AtlasUpload)

Queue atlas uploads, applied in the next prepare.

pub fn extend_uploads(&mut self, uploads: impl IntoIterator<Item = AtlasUpload>)

Queue several uploads at once (per-frame atlas drains).

pub fn push( &mut self, center: [f32; 2], size: [f32; 2], rotation: f32, anchor: [f32; 2], flip_x: bool, flip_y: bool, uv_min: [f32; 2], uv_max: [f32; 2], tint: [f32; 4], page: u32, )

Push one textured quad.

pub fn push_blended( &mut self, center: [f32; 2], size: [f32; 2], rotation: f32, anchor: [f32; 2], flip_x: bool, flip_y: bool, uv_min: [f32; 2], uv_max: [f32; 2], tint: [f32; 4], page: u32, z: f32, blend: SpriteBlend, )

Push with explicit z + blend.

pub fn push_sprite(&mut self, s: &SpriteInstance)

Bridge a snapshot sprite into the batch.

The atlas and the render target are both Rgba8UnormSrgb, so the sampled texel and the written pixel are already in linear space and the tint has to be linearized here; Self::push takes one directly.

impl SpriteBatch

pub fn prepare_with_uploads( &self, device: &Device, queue: &Queue, _encoder: &mut CommandEncoder, screen: &ScreenDescriptor, resources: &mut CallbackResources, uploads: &[AtlasUpload], ) -> Vec<CommandBuffer>

Game-owned passes can drive this batch into their OWN render target instead.

Trait Implementations

impl WgpuCallback for SpriteBatch

fn resource_key(&self) -> Option<&str>

fn prepare( &self, device: &Device, queue: &Queue, encoder: &mut CommandEncoder, screen: &ScreenDescriptor, resources: &mut CallbackResources, ) -> Vec<CommandBuffer>

Called before the main repose render pass, with access to device/queue/encoder for buffer uploads. Can return extra command buffers to be submitted.

fn paint( &self, _info: PaintCallbackInfo, rpass: &mut CallbackRenderPass<'_, '_>, resources: &CallbackResources, )

fn resource_type_id(&self) -> TypeId

fn finish_prepare( &self, _device: &Device, _queue: &Queue, _encoder: &mut CommandEncoder, _screen_descriptor: &ScreenDescriptor, _resources: &mut CallbackResources, ) -> Vec<CommandBuffer>

Called after all prepare calls, before paint. For cross-callback sync.