One composite tile from the worker's CompositorController:: snapshotCompositorTiles() snapshot (design doc 0033 §M2C). The editor uploads one GL texture per tile (keyed on id) and blits each tile at its canvas offset. Immediate tiles intentionally use transient ids and always carry a fresh payload. Geometry fields are doc-unit quantities so the editor can scale them by the current pixelsPerDocUnit during canvas-resize debouncing. More...

#include "donner/editor/AsyncRenderer.h"

Collaboration diagram for donner::editor::RenderResult::CompositedTile:

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Public Types
enum class	Kind : std::uint8_t { Segment , Layer , Immediate }

Public Attributes
Kind	kind = Kind::Segment
std::string	id
	Stable id from the compositor — "seg:{i}" or "layer:{entity}". The editor's per-tile texture cache uses this to reuse GL textures across frames when the tile's generation hasn't bumped.
Entity	layerEntity = entt::null
	Promoted entity represented by this layer tile. Null for static segment and full-canvas tiles. The presenter uses this to suppress stale cached pixels for a selected element that became non-rendering while keeping editor chrome visible.
std::uint64_t	generation = 0
	Monotonic generation from the compositor. Editor re-uploads the bitmap only when this advances.
svg::RendererBitmap	bitmap
	Source bitmap; uploaded as the tile's GL texture content.
std::shared_ptr< const svg::RendererTextureSnapshot >	textureSnapshot
	Backend-owned texture payload. Geode editor builds present this directly via ImGui WGPU.
Vector2i	bitmapDimsPx = Vector2i::Zero()
	Intrinsic texture dimensions in raster pixels. Metadata-only tiles keep this populated so the presentation cache can reject stale texture reuse across canvas-size epochs.
Vector2i	rasterCanvasSize = Vector2i::Zero()
	Raster canvas size that produced this payload. Metadata-only reuse is only valid inside the same raster-canvas epoch.
Vector2d	canvasOffsetDoc = Vector2d::Zero()
	Canvas-space top-left of bitmap, in document units. Editor multiplies by pixelsPerDocUnit to get the on-screen blit origin.
Vector2d	bitmapDimsDoc = Vector2d::Zero()
	Bitmap's intrinsic dimensions, in document units. Editor multiplies by current pixelsPerDocUnit to get the on-screen blit size — keeps the bitmap stretching with pinch-zoom while the canvas-size commit is debounced.
Vector2d	dragTranslationDoc = Vector2d::Zero()
	For drag-target tiles, the per-frame DOM translation in doc units (the delta between the bitmap's rasterize-time DOM transform and the entity's current DOM transform). Editor adds this to canvasOffsetDoc so the dragged tile slides in real time without re-rasterizing.
Transform2d	documentFromCachedDocument = Transform2d()
	Affine transform from cached document placement to presented document placement.
bool	isDragTarget = false
	True when this tile is the active drag target. Useful for pre-test inspection; the editor's blit math treats drag and non-drag tiles uniformly via dragTranslationDoc.

Detailed Description

One composite tile from the worker's CompositorController:: snapshotCompositorTiles() snapshot (design doc 0033 §M2C). The editor uploads one GL texture per tile (keyed on id) and blits each tile at its canvas offset. Immediate tiles intentionally use transient ids and always carry a fresh payload. Geometry fields are doc-unit quantities so the editor can scale them by the current pixelsPerDocUnit during canvas-resize debouncing.

The documentation for this struct was generated from the following file:

donner/editor/AsyncRenderer.h

Public Types

Public Attributes

Detailed Description