Enum HwcCompositionType

#[repr(i32)]
pub enum HwcCompositionType {
    HwcTypeUnspecified = 0,
    HwcTypeClient = 1,
    HwcTypeDevice = 2,
    HwcTypeSolidColor = 3,
    HwcTypeCursor = 4,
    HwcTypeSideband = 5,
    HwcTypeDisplayDecoration = 6,
}

Must match definition in the IComposerClient HAL

Variants

HwcTypeUnspecified = 0

Invalid composition type

HwcTypeClient = 1

Layer was composited by the client into the client target buffer

HwcTypeDevice = 2

Layer was composited by the device through hardware overlays

HwcTypeSolidColor = 3

Layer was composited by the device using a color

HwcTypeCursor = 4

Similar to DEVICE, but the layer position may have been asynchronously set through setCursorPosition

HwcTypeSideband = 5

Layer was composited by the device via a sideband stream

HwcTypeDisplayDecoration = 6

Layer was composited by hardware optimized for display decoration

Implementations

impl HwcCompositionType

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of HwcCompositionType.

pub fn from_i32(value: i32) -> Option<HwcCompositionType>

👎Deprecated: Use the TryFrom<i32> implementation instead

Converts an i32 to a HwcCompositionType, or None if value is not a valid variant.

impl HwcCompositionType

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

String value of the enum field names used in the ProtoBuf definition.

The values are not transformed in any way and thus are considered stable (if the ProtoBuf definition does not change) and safe for programmatic use.

pub fn from_str_name(value: &str) -> Option<Self>

Creates an enum from field names used in the ProtoBuf definition.

Trait Implementations

impl Clone for HwcCompositionType

fn clone(&self) -> HwcCompositionType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for HwcCompositionType

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

Formats the value using the given formatter.

impl Default for HwcCompositionType

fn default() -> HwcCompositionType

Returns the “default value” for a type.

impl From<HwcCompositionType> for i32

fn from(value: HwcCompositionType) -> i32

Converts to this type from the input type.

impl Hash for HwcCompositionType

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 Ord for HwcCompositionType

fn cmp(&self, other: &HwcCompositionType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for HwcCompositionType

fn eq(&self, other: &HwcCompositionType) -> 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 PartialOrd for HwcCompositionType

fn partial_cmp(&self, other: &HwcCompositionType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl TryFrom<i32> for HwcCompositionType

type Error = DecodeError

The type returned in the event of a conversion error.

fn try_from(value: i32) -> Result<HwcCompositionType, DecodeError>

Performs the conversion.

impl Copy for HwcCompositionType

impl Eq for HwcCompositionType

impl StructuralPartialEq for HwcCompositionType