Struct fonts::platform::freetype::library_handle::FreeTypeLibraryHandle

pub(crate) struct FreeTypeLibraryHandle {
    pub freetype_library: FT_Library,
    freetype_memory: FT_Memory,
}

A FreeType library handle to be used for creating and dropping FreeType font faces. It is very important that this handle lives as long as the faces themselves, which is why only one of these is created for the entire execution of Servo and never dropped during execution.

Fields

freetype_library: FT_Library

freetype_memory: FT_Memory

Implementations

impl FreeTypeLibraryHandle

pub(crate) fn get() -> &'static Mutex<FreeTypeLibraryHandle>

Get the shared FreeType library handle. This is protected by a mutex because according to the FreeType documentation:

[Since 2.5.6] In multi-threaded applications it is easiest to use one FT_Library object per thread. In case this is too cumbersome, a single FT_Library object across threads is possible also, as long as a mutex lock is used around FT_New_Face and FT_Done_Face.

See https://freetype.org/freetype2/docs/reference/ft2-library_setup.html.

Trait Implementations

impl Clone for FreeTypeLibraryHandle

fn clone(&self) -> FreeTypeLibraryHandle

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FreeTypeLibraryHandle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for FreeTypeLibraryHandle

fn drop(&mut self)

Executes the destructor for this type.

impl MallocSizeOf for FreeTypeLibraryHandle

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl Send for FreeTypeLibraryHandle

impl Sync for FreeTypeLibraryHandle