Enum WGPUCompositeAlphaMode

#[repr(i32)]
pub enum WGPUCompositeAlphaMode {
    Auto = 0,
    Opaque = 1,
    Premultiplied = 2,
    Unpremultiplied = 3,
    Inherit = 4,
}

Variants

Auto = 0

Lets the WebGPU implementation choose the best mode (supported, and with the best performance) between @ref WGPUCompositeAlphaMode_Opaque or @ref WGPUCompositeAlphaMode_Inherit.

Opaque = 1

The alpha component of the image is ignored and teated as if it is always 1.0.

Premultiplied = 2

The alpha component is respected and non-alpha components are assumed to be already multiplied with the alpha component. For example, (0.5, 0, 0, 0.5) is semi-transparent bright red.

Unpremultiplied = 3

The alpha component is respected and non-alpha components are assumed to NOT be already multiplied with the alpha component. For example, (1.0, 0, 0, 0.5) is semi-transparent bright red.

Inherit = 4

The handling of the alpha component is unknown to WebGPU and should be handled by the application using system-specific APIs. This mode may be unavailable (for example on Wasm).

Implementations

impl WGPUCompositeAlphaMode

pub const fn from_repr(discriminant: i32) -> Option<WGPUCompositeAlphaMode>

Try to create Self from the raw representation

impl WGPUCompositeAlphaMode

pub fn to_str(self) -> &'static str

Trait Implementations

impl Clone for WGPUCompositeAlphaMode

fn clone(&self) -> WGPUCompositeAlphaMode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WGPUCompositeAlphaMode

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

Formats the value using the given formatter.

impl Display for WGPUCompositeAlphaMode

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

Formats the value using the given formatter.

impl<'_derivative_strum> From<&'_derivative_strum WGPUCompositeAlphaMode> for &'static str

fn from(x: &'_derivative_strum WGPUCompositeAlphaMode) -> &'static str

Converts to this type from the input type.

impl From<WGPUCompositeAlphaMode> for &'static str

fn from(x: WGPUCompositeAlphaMode) -> &'static str

Converts to this type from the input type.

impl FromStr for WGPUCompositeAlphaMode

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<WGPUCompositeAlphaMode, <Self as FromStr>::Err>

Parses a string s to return a value of this type.

impl Hash for WGPUCompositeAlphaMode

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl IntoEnumIterator for WGPUCompositeAlphaMode

type Iterator = WGPUCompositeAlphaModeIter

fn iter() -> WGPUCompositeAlphaModeIter

impl PartialEq for WGPUCompositeAlphaMode

fn eq(&self, other: &WGPUCompositeAlphaMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TryFrom<&str> for WGPUCompositeAlphaMode

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from( s: &str, ) -> Result<WGPUCompositeAlphaMode, <Self as TryFrom<&str>>::Error>

Performs the conversion.

impl Copy for WGPUCompositeAlphaMode

impl Eq for WGPUCompositeAlphaMode

impl StructuralPartialEq for WGPUCompositeAlphaMode