Struct ImageBorderScratch 

pub struct ImageBorderScratch {
    pub brush_segments_range: Range<BrushSegment>,
    pub gpu_address: GpuBufferAddress,
}

Per-frame scratch data for an ImageBorder primitive.

Fields

brush_segments_range: Range<BrushSegment>

Range into PrimitiveFrameScratch::segments holding the per- frame nine-patch brush segments for this border. Built fresh each frame against the prim’s current size in prepare_prim_for_render.

gpu_address: GpuBufferAddress

Per-instance GPU buffer address for the brush + segment blocks written by ImageBorderData::update. Per-instance because the block contents (stretch_size and segments) depend on the prim’s per-instance size.

Implementations

impl ImageBorderScratch

pub fn build_for_prim( data_handle: Handle<ImageBorder>, prim_instance_index: PrimitiveInstanceIndex, prim_size: LayoutSize, data_stores: &DataStores, scratch: &mut PrimitiveScratchBuffer, )

Build the per-frame nine-patch brush segments for an ImageBorder prim, push the resulting ImageBorderScratch entry, and wire it up to the prim’s PrimitiveDrawHeader.kind_scratch.

Called from the prep early pass before update_clip_task runs, since update_clip_task_for_brush reads the brush segments via the scratch entry allocated here.

Trait Implementations

impl Clone for ImageBorderScratch

fn clone(&self) -> ImageBorderScratch

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ImageBorderScratch

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

Formats the value using the given formatter.

impl Serialize for ImageBorderScratch

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ImageBorderScratch