donner::svg::RendererFilterPreparationBudget Class Reference

Aggregate filter-graph preparation and source-image materialization budget for one frame. More...

#include "donner/svg/renderer/RendererInterface.h"

Classes
struct	Limits
	Per-frame capacity for filter preparation. More...

Public Member Functions
void	reset ()
	Clears per-frame counters and the sticky rejection state.
bool	beginGraph ()
	Records one graph attempt, or latches rejection when the attempt cap is exhausted.
bool	reserveNodes (std::size_t count)
	Reserves graph nodes and counts a prepared graph on success.
bool	reserveImageBytes (std::uint64_t count)
	Reserves source-image bytes against the aggregate image limit.
bool	reserveMaterializationBytes (std::uint64_t count)
	Reserves bytes for source-image materialization.
bool	reservePayloadBytes (std::uint64_t count)
	Reserves retained filter payload bytes.
bool	reserveShadowEntities (std::size_t count)
	Reserves entities created while preparing filter shadows.
std::size_t	attempts () const
	Number of graph attempts in this frame.
std::size_t	graphs () const
	Number of graphs whose nodes were successfully reserved.
std::size_t	nodes () const
	Aggregate reserved graph nodes.
std::uint64_t	imageBytes () const
	Aggregate reserved source-image bytes.
std::uint64_t	materializationBytes () const
	Aggregate reserved materialized-image bytes.
std::uint64_t	payloadBytes () const
	Aggregate reserved filter payload bytes.
std::size_t	shadowEntities () const
	Aggregate reserved shadow entities.
bool	rejected () const
	Whether a capacity check has failed in this frame.
std::uint64_t	remainingImageBytes () const
	Source-image bytes that can still be reserved in this frame; zero once a check has failed.
void	setLimitsForTesting (Limits limits)
	Tightens test limits without raising any existing capacity.

Static Public Attributes
static constexpr std::size_t	kMaximumGraphs
	Maximum filter graph attempts in one frame.
static constexpr std::size_t	kMaximumNodes
	Maximum aggregate nodes across those graph attempts.
static constexpr std::uint64_t	kMaximumImageBytes = 4ULL * 1024 * 1024
	Maximum aggregate source-image bytes prepared in one frame.
static constexpr std::uint64_t	kMaximumMaterializationBytes = 2 * kMaximumImageBytes
	Maximum aggregate source-image materialization bytes.
static constexpr std::uint64_t	kMaximumPayloadBytes = 16ULL * 1024 * 1024
	Maximum aggregate retained filter payload bytes.
static constexpr std::size_t	kMaximumShadowEntities = 4096
	Maximum entities introduced while preparing shadow/filter resources.

Detailed Description

Aggregate filter-graph preparation and source-image materialization budget for one frame.

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Class Documentation

donner::svg::RendererFilterPreparationBudget::Limits

struct donner::svg::RendererFilterPreparationBudget::Limits

Per-frame capacity for filter preparation.

Class Members
size_t	graphs = kMaximumGraphs	Graph attempts.
uint64_t	imageBytes = kMaximumImageBytes	Source-image bytes.
uint64_t	materializationBytes	Materialized image bytes.
size_t	nodes = kMaximumNodes	Total graph nodes.
uint64_t	payloadBytes = kMaximumPayloadBytes	Retained payload bytes.
size_t	shadowEntities = kMaximumShadowEntities	Shadow entities.

Member Data Documentation

kMaximumGraphs

std::size_t donner::svg::RendererFilterPreparationBudget::kMaximumGraphs

staticconstexpr

Initial value:

=
      components::FilterExecutionBudget::kMaximumExecutions

Maximum filter graph attempts in one frame.

kMaximumNodes

std::size_t donner::svg::RendererFilterPreparationBudget::kMaximumNodes

staticconstexpr

Initial value:

=
      kMaximumGraphs * components::kMaximumFilterGraphNodes

Maximum aggregate nodes across those graph attempts.

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

• donner/svg/renderer/RendererInterface.h