Enum DrawMemory 

pub enum DrawMemory<'a> {
    Scratch,
    Buffer(&'a mut [u8]),
}

Working memory for drawing an outline.

A glyf outline and a VARC composite need working memory to draw; a charstring needs none. The size an outline needs is given by its required_memory_size.

Variants

Scratch

Short-lived scratch memory of the size the outline needs, which may be allocated on the heap for a large glyph.

Buffer(&'a mut [u8])

Memory supplied by the caller, of at least the size the outline needs.

Implementations

impl<'a> DrawMemory<'a>

pub(crate) fn into_buffer(self) -> Option<&'a mut [u8]>

Returns the caller’s memory, or None for scratch memory.

Trait Implementations

impl<'a> Debug for DrawMemory<'a>

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

Formats the value using the given formatter.

impl<'a> Default for DrawMemory<'a>

fn default() -> DrawMemory<'a>

Returns the “default value” for a type.

impl<'a> From<&'a mut [u8]> for DrawMemory<'a>

fn from(buffer: &'a mut [u8]) -> Self

Converts to this type from the input type.