Struct DmabufFormats

pub struct DmabufFormats { /* private fields */ }

Available on crate feature v4_14 only.

The DmabufFormats struct provides information about supported DMA buffer formats.

You can query whether a given format is supported with contains() and you can iterate over the list of all supported formats with n_formats() and format().

The list of supported formats is sorted by preference, with the best formats coming first.

The list may contains (format, modifier) pairs where the modifier is DMA_FORMAT_MOD_INVALID, indicating that implicit modifiers may be used with this format.

See DmabufTextureBuilder for more information about DMA buffers.

Note that DMA buffers only exist on Linux.

GLib type: Shared boxed type with reference counted clone semantics.

Implementations

impl DmabufFormats

pub fn as_ptr(&self) -> *mut GdkDmabufFormats

Return the inner pointer to the underlying C value.

pub unsafe fn from_glib_ptr_borrow(ptr: &*mut GdkDmabufFormats) -> &Self

Borrows the underlying C value.

impl DmabufFormats

pub fn contains(&self, fourcc: u32, modifier: u64) -> bool

Returns whether a given format is contained in @self.

fourcc

a format code

modifier

a format modifier

Returns

TRUE if the format specified by the arguments is part of @self

pub fn format(&self, idx: usize) -> (u32, u64)

Gets the fourcc code and modifier for a format that is contained in @self.

idx

the index of the format to return

Returns

fourcc

return location for the format code

modifier

return location for the format modifier

pub fn n_formats(&self) -> usize

Returns the number of formats that the @self object contains.

Note that DMA buffers are a Linux concept, so on other platforms, n_formats() will always return zero.

Returns

the number of formats

Trait Implementations

impl Clone for DmabufFormats

fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the reference. Dropping the reference will decrement it again.

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

Performs copy-assignment from source.

impl Debug for DmabufFormats

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

Formats the value using the given formatter.

impl From<DmabufFormats> for Value

fn from(s: DmabufFormats) -> Self

Converts to this type from the input type.

impl HasParamSpec for DmabufFormats

type ParamSpec = ParamSpecBoxed

type SetValue = DmabufFormats

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecBoxedBuilder<'_, DmabufFormats>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for DmabufFormats

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 DmabufFormats

fn cmp(&self, other: &DmabufFormats) -> 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 DmabufFormats

fn eq(&self, other: &Self) -> 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 DmabufFormats

fn partial_cmp(&self, other: &DmabufFormats) -> 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 StaticType for DmabufFormats

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for DmabufFormats