To do anything rendering related with Impeller, you need a context.
The graphics context necessary to render text.
virtual std::shared_ptr< GlyphAtlasContext > CreateGlyphAtlasContext() const =0
TypographerContext()
Create a new context to render text that talks to an underlying graphics context.
virtual std::shared_ptr< GlyphAtlas > CreateGlyphAtlas(Context &context, GlyphAtlas::Type type, const std::shared_ptr< GlyphAtlasContext > &atlas_context, const FontGlyphMap &font_glyph_map) const =0
virtual ~TypographerContext()
virtual bool IsValid() const