Owns computed-filter structural reservations and shared raster payload admission. More...

#include "donner/svg/components/filter/ComputedFilterResourceBudget.h"

Classes
struct	Limits

Public Member Functions
	ComputedFilterResourceBudget (std::shared_ptr< DocumentResourceFamilyBudget > family=nullptr)
	ComputedFilterResourceBudget (std::shared_ptr< DocumentResourceFamilyBudget > family, Limits limits)
	ComputedFilterResourceBudget (const ComputedFilterResourceBudget &)=delete
ComputedFilterResourceBudget &	operator= (const ComputedFilterResourceBudget &)=delete
	ComputedFilterResourceBudget (ComputedFilterResourceBudget &&other) noexcept
ComputedFilterResourceBudget &	operator= (ComputedFilterResourceBudget &&)=delete
bool	reserve (Entity entity, std::size_t bytes)
void	release (Entity entity)
std::shared_ptr< const std::vector< std::uint8_t > >	shareImage (Entity sourceEntity, std::uint64_t sourceRevision, const std::vector< std::uint8_t > &sourcePixels)
	Return one immutable copy of a loaded image, shared by every graph using the same source.
std::shared_ptr< const std::vector< std::uint8_t > >	adoptImage (std::vector< std::uint8_t > &&sourcePixels)
	Adopt a transient renderer-produced image after reserving its full retained lifetime.
std::size_t	retainedBytes () const
std::size_t	sharedImageMaterializations () const
std::size_t	sharedImageComparedBytes () const
bool	rejected () const
const Limits &	limits () const

Static Public Attributes
static constexpr std::size_t	kMaximumBytes = 16 * 1024 * 1024

Detailed Description

Owns computed-filter structural reservations and shared raster payload admission.

Class Documentation

◆ donner::svg::components::ComputedFilterResourceBudget::Limits

struct donner::svg::components::ComputedFilterResourceBudget::Limits

Class Members
size_t	maximumBytes = kMaximumBytes

Member Function Documentation

◆ adoptImage()

std::shared_ptr< const std::vector< std::uint8_t > > donner::svg::components::ComputedFilterResourceBudget::adoptImage ( std::vector< std::uint8_t > && sourcePixels )

inline

Adopt a transient renderer-produced image after reserving its full retained lifetime.

Parameters

sourcePixels Tightly packed straight-alpha RGBA pixels.

Returns: Shared immutable pixels, or null when admission fails.

◆ shareImage()

std::shared_ptr< const std::vector< std::uint8_t > > donner::svg::components::ComputedFilterResourceBudget::shareImage	(	Entity	sourceEntity,
		std::uint64_t	sourceRevision,
		const std::vector< std::uint8_t > &	sourcePixels )

inline

Return one immutable copy of a loaded image, shared by every graph using the same source.

The family reservation is captured by the allocation's deleter, so accounting remains live until the final computed graph or render snapshot releases the pixels.

Parameters

sourceEntity	Entity that owns the decoded image.
sourceRevision	Monotonic identity of the decoded image payload.
sourcePixels	Decoded straight-alpha RGBA pixels.

Returns: Shared immutable pixels, or null when admission fails.

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

donner/svg/components/filter/ComputedFilterResourceBudget.h

Classes