Enum gfx_core::factory::Usage [−] [src]

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

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

Trait Implementations

Derived Implementations

impl Debug for Usage

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

impl Clone for Usage

fn clone(&self) -> Usage

1.0.0fn clone_from(&mut self, source: &Self)

impl Copy for Usage

impl Hash for Usage

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

1.3.0fn hash_slice<H>(data: &[Self], state: &mut H) where H: Hasher

impl PartialOrd 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 PartialEq for Usage

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

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

impl Ord for Usage

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

impl Eq for Usage