Enum gfx::Usage

pub enum Usage {
    GpuOnly,
    Const,
    Dynamic,
    CpuOnly(MapAccess),
}

A hint as to how this buffer/texture will be used.

The nature of these hints make them very implementation specific. Different drivers on different hardware will handle them differently. Only careful profiling will tell which is the best to use for a specific buffer.

Variants

GpuOnly

GPU: read + write, CPU: copy. Optimal for render targets.

Const

GPU: read, CPU: none. Optimal for resourced textures/buffers.

Dynamic

GPU: read, CPU: write.

CpuOnly(MapAccess)

GPU: copy, CPU: as specified. Used as a staging buffer, to be copied back and forth with on-GPU targets.

Trait Implementations

impl Eq for Usage

impl Ord for Usage

fn cmp(&self, __arg_0: &Usage) -> Ordering

impl PartialEq<Usage> for Usage

fn eq(&self, __arg_0: &Usage) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &Usage) -> bool

This method tests for !=.

impl PartialOrd<Usage> for Usage

fn partial_cmp(&self, __arg_0: &Usage) -> Option<Ordering>

fn lt(&self, __arg_0: &Usage) -> bool

fn le(&self, __arg_0: &Usage) -> bool

fn gt(&self, __arg_0: &Usage) -> bool

fn ge(&self, __arg_0: &Usage) -> bool

impl Hash for Usage

fn hash<__H>(&self, __arg_0: &mut __H) where __H: Hasher

impl Copy for Usage

impl Clone for Usage

fn clone(&self) -> Usage

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Usage

fn fmt(&self, __arg_0: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.