Struct gdk4::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.

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<'a>( ptr: *const *const GdkDmabufFormats ) -> &'a 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

Returns a copy of the value.

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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for DmabufFormats

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

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

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

This method 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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method 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