donner::geode::GeodeResidentGradientSlot Struct Reference

GPU-resident geometry for one gradient-painted fill. Mirrors GeodeResidentSlot: a combined-usage buffer holds the same eight analytic dual-ray SSBO regions, but the uniform region holds the 672-byte gradient uniform block (stops inline, shaders/slug_gradient.wgsl) and the cached bind group uses the 11-binding gradient pipeline layout with the device-owned dummy clip-mask texture/sampler in bindings 3 and 4. Residence is only taken when no clip mask, clip polygon, or mask pass is active (the gradient shader's clip flags must stay zero for the cached bind group to remain stable), exactly like the solid-fill residence gate. More...

#include "donner/svg/renderer/geode/GeodeResidentPathComponent.h"

Classes
struct	Region
	A byte sub-range of buffer (same semantics as GeodeResidentSlot::Region). More...

Public Member Functions
bool	reserveUniformMirror (uint64_t bytes)
	GeodeResidentGradientSlot (const GeodeResidentGradientSlot &)=delete
GeodeResidentGradientSlot &	operator= (const GeodeResidentGradientSlot &)=delete
	GeodeResidentGradientSlot (GeodeResidentGradientSlot &&) noexcept=default
GeodeResidentGradientSlot &	operator= (GeodeResidentGradientSlot &&other) noexcept
void	reset ()
	Return the slab allocation and drop the bind group + borrowed handle. Never calls Buffer::destroy(); see GeodeResidentSlot::reset.

Public Attributes
gpu::BufferRef	buffer
	Combined Storage|Uniform|CopyDst buffer, borrowed from the owning GeodeResidentSlab chunk; region offsets are ABSOLUTE buffer offsets. Region layout matches GeodeResidentSlot, with the uniform region sized for GradientUniforms (672 bytes).
uint64_t	bufferId = 0
	Stable identity of buffer (see GeodeDevice::AllocateBufferId), so returning the allocation matches the owning chunk by identity rather than by a handle address the allocator can recycle.
std::shared_ptr< GeodeResidentSlab >	slab
	Slab that owns buffer; null until residence is established. Held by shared_ptr so a device change (which swaps the registry's slab) cannot leave a slot referencing a destroyed slab: old slots keep the old slab alive until their own reset drops the reference.
uint64_t	allocationOffset = 0
	Whole-slot allocation inside the slab, returned via free on reset.
uint64_t	allocationSize = 0
gpu::BindGroup	bindGroup
	Cached 11-binding gradient bind group. All bindings reference stable objects (this slot's buffer sub-ranges + device-owned dummy clip-mask texture/sampler), so it survives frames and encoders.
Region	bands
	Horizontal band SSBO (binding 1).
Region	curves
	Horizontal curve SSBO (binding 2).
Region	hRefs
	Horizontal curve-reference SSBO (binding 9).
Region	vBands
	Vertical band SSBO (binding 5).
Region	vCurves
	Vertical curve SSBO (binding 6).
Region	vRefs
	Vertical curve-reference SSBO (binding 10).
Region	hGrid
	Horizontal band grid (binding 7).
Region	vGrid
	Vertical band grid (binding 8).
Region	uniform
	Per-draw gradient uniform block (binding 0, 256-aligned).
uint32_t	vertexCount = 0
	Triangle-fan draw count generated from vertex_index.
uint64_t	lastResidentFrame = ~uint64_t{0}
	Frame index in which this slot was last drawn via the resident path. A slot's single uniform buffer + cached bind group can only serve ONE draw per frame; see GeodeResidentSlot::lastResidentFrame.
uint64_t	owningDeviceId = 0
	Process-unique device id of the device that created the resources; see GeodeResidentSlot::owningDeviceId.
bool	resident = false
	True once buffer + bindGroup hold the current encode.
const void *	encodedKey = nullptr
	Identity guard: address + cheap fingerprint of the uploaded encode.
uint64_t	encodedFingerprint = 0
std::vector< uint8_t >	lastUniform
	Bytes last written to the uniform region; unchanged draws skip the write.
GeodeGeometryCacheReservation	cpuMirrorReservation
uint64_t	cpuUniformBytes = 0

Detailed Description

GPU-resident geometry for one gradient-painted fill. Mirrors GeodeResidentSlot: a combined-usage buffer holds the same eight analytic dual-ray SSBO regions, but the uniform region holds the 672-byte gradient uniform block (stops inline, shaders/slug_gradient.wgsl) and the cached bind group uses the 11-binding gradient pipeline layout with the device-owned dummy clip-mask texture/sampler in bindings 3 and 4. Residence is only taken when no clip mask, clip polygon, or mask pass is active (the gradient shader's clip flags must stay zero for the cached bind group to remain stable), exactly like the solid-fill residence gate.

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Class Documentation

donner::geode::GeodeResidentGradientSlot::Region

struct donner::geode::GeodeResidentGradientSlot::Region

A byte sub-range of buffer (same semantics as GeodeResidentSlot::Region).

Class Members
uint64_t	offset = 0
uint64_t	size = 0

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

• donner/svg/renderer/geode/GeodeResidentPathComponent.h