The GPU image of a GlyphAtlas, for anything that samples glyph coverage. More...

#include <AtlasImage.hpp>

Collaboration diagram for MayaFlux::Portal::Text::AtlasImage:

Public Member Functions
uint64_t	generation () const noexcept
	Increments every time sync() replaces the image object.

const std::shared_ptr< Core::VKImage > &	image () const noexcept
	The image from the last sync(), null before the first.

std::shared_ptr< Core::VKImage >	sync (GlyphAtlas &atlas)
	Bring the image up to date with `atlas`.

Private Attributes
const GlyphAtlas *	m_atlas { nullptr }

uint64_t	m_generation { 0 }

std::shared_ptr< Core::VKImage >	m_image

uint32_t	m_size { 0 }

Detailed Description

The GPU image of a GlyphAtlas, for anything that samples glyph coverage.

Holds an R8 image of the atlas and keeps it current: sync() uploads the atlas when glyphs were rasterized since the last call, and recreates the image when the atlas was replaced or grew. Growth rewrites every glyph's UVs, so generation() increments whenever the image object changes; vertices built against an earlier generation are stale and must be re-emitted, and the image must be bound again where it was bound.

The atlas dirty flag is consumed here: one AtlasImage per atlas.

Definition at line 24 of file AtlasImage.hpp.

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

Public Member Functions

Private Attributes

Detailed Description