Struct rust_libretro::types::unstable::AudioVideoEnable

pub struct AudioVideoEnable {
    bits: u32,
}

Tells the core if the frontend wants audio or video.

Fields

bits: u32

Implementations

impl AudioVideoEnable

pub const ENABLE_VIDEO: Self = _

When this bit is not set:

• The frontend wants the core: to not generate any video, including presenting frames via hardware acceleration.
• The frontend’s video frame callback will do nothing.
• After running the frame, the video output of the next frame should be no different than if video was enabled, and saving and loading state should have no issues.

pub const ENABLE_AUDIO: Self = _

When this bit is not set:

• The frontend wants the core to not generate any audio.
• The frontend’s audio callbacks will do nothing.
• After running the frame, the audio output of the next frame should be no different than if audio was enabled, and saving and loading state should have no issues.

pub const USE_FAST_SAVESTATES: Self = _

When this bit is set:

• Guaranteed to be created by the same binary that will load them.
• Will not be written to or read from the disk.
• Suggest that the core assumes loading state will succeed.
• Suggest that the core updates its memory buffers in-place if possible.
• Suggest that the core skips clearing memory.
• Suggest that the core skips resetting the system.
• Suggest that the core may skip validation steps.

pub const HARD_DISABLE_AUDIO: Self = _

When this bit is set:

• Used for a secondary core when running ahead.
• Indicates that the frontend will never need audio from the core.
• Suggests that the core may stop synthesizing audio, but this should not compromise emulation accuracy.
• Audio output for the next frame does not matter, and the frontend will never need an accurate audio state in the future.
• State will never be saved when using Hard Disable Audio.

pub const fn empty() -> Self

Returns an empty set of flags.

pub const fn all() -> Self

Returns the set containing all flags.

pub const fn bits(&self) -> u32

Returns the raw value of the flags currently stored.

pub const fn from_bits(bits: u32) -> Option<Self>

Convert from underlying bit representation, unless that representation contains bits that do not correspond to a flag.

pub const fn from_bits_truncate(bits: u32) -> Self

Convert from underlying bit representation, dropping any bits that do not correspond to flags.

pub const unsafe fn from_bits_unchecked(bits: u32) -> Self

Convert from underlying bit representation, preserving all bits (even those not corresponding to a defined flag).

Safety

The caller of the bitflags! macro can chose to allow or disallow extra bits for their bitflags type.

The caller of from_bits_unchecked() has to ensure that all bits correspond to a defined flag or that extra bits are valid for this bitflags type.

pub const fn is_empty(&self) -> bool

Returns true if no flags are currently stored.

pub const fn is_all(&self) -> bool

Returns true if all flags are currently set.

pub const fn intersects(&self, other: Self) -> bool

Returns true if there are flags common to both self and other.

pub const fn contains(&self, other: Self) -> bool

Returns true if all of the flags in other are contained within self.

pub fn insert(&mut self, other: Self)

Inserts the specified flags in-place.

pub fn remove(&mut self, other: Self)

Removes the specified flags in-place.

pub fn toggle(&mut self, other: Self)

Toggles the specified flags in-place.

pub fn set(&mut self, other: Self, value: bool)

Inserts or removes the specified flags depending on the passed value.

pub const fn intersection(self, other: Self) -> Self

Returns the intersection between the flags in self and other.

Specifically, the returned set contains only the flags which are present in both self and other.

This is equivalent to using the & operator (e.g. ops::BitAnd), as in flags & other.

pub const fn union(self, other: Self) -> Self

Returns the union of between the flags in self and other.

Specifically, the returned set contains all flags which are present in either self or other, including any which are present in both (see Self::symmetric_difference if that is undesirable).

This is equivalent to using the | operator (e.g. ops::BitOr), as in flags | other.

pub const fn difference(self, other: Self) -> Self

Returns the difference between the flags in self and other.

Specifically, the returned set contains all flags present in self, except for the ones present in other.

It is also conceptually equivalent to the “bit-clear” operation: flags & !other (and this syntax is also supported).

This is equivalent to using the - operator (e.g. ops::Sub), as in flags - other.

pub const fn symmetric_difference(self, other: Self) -> Self

Returns the symmetric difference between the flags in self and other.

Specifically, the returned set contains the flags present which are present in self or other, but that are not present in both. Equivalently, it contains the flags present in exactly one of the sets self and other.

This is equivalent to using the ^ operator (e.g. ops::BitXor), as in flags ^ other.

pub const fn complement(self) -> Self

Returns the complement of this set of flags.

Specifically, the returned set contains all the flags which are not set in self, but which are allowed for this type.

Alternatively, it can be thought of as the set difference between Self::all() and self (e.g. Self::all() - self)

This is equivalent to using the ! operator (e.g. ops::Not), as in !flags.

Trait Implementations

impl Binary for AudioVideoEnable

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

Formats the value using the given formatter.

impl BitAnd<AudioVideoEnable> for AudioVideoEnable

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

Returns the intersection between the two sets of flags.

type Output = AudioVideoEnable

The resulting type after applying the & operator.

impl BitAndAssign<AudioVideoEnable> for AudioVideoEnable

fn bitand_assign(&mut self, other: Self)

Disables all flags disabled in the set.

impl BitOr<AudioVideoEnable> for AudioVideoEnable

fn bitor(self, other: AudioVideoEnable) -> Self

Returns the union of the two sets of flags.

type Output = AudioVideoEnable

The resulting type after applying the | operator.

impl BitOrAssign<AudioVideoEnable> for AudioVideoEnable

fn bitor_assign(&mut self, other: Self)

Adds the set of flags.

impl BitXor<AudioVideoEnable> for AudioVideoEnable

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

Returns the left flags, but with all the right flags toggled.

type Output = AudioVideoEnable

The resulting type after applying the ^ operator.

impl BitXorAssign<AudioVideoEnable> for AudioVideoEnable

fn bitxor_assign(&mut self, other: Self)

Toggles the set of flags.

impl Clone for AudioVideoEnable

fn clone(&self) -> AudioVideoEnable

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AudioVideoEnable

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

Formats the value using the given formatter.

impl Extend<AudioVideoEnable> for AudioVideoEnable

fn extend<T: IntoIterator<Item = Self>>(&mut self, iterator: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl FromIterator<AudioVideoEnable> for AudioVideoEnable

fn from_iter<T: IntoIterator<Item = Self>>(iterator: T) -> Self

Creates a value from an iterator.

impl Hash for AudioVideoEnable

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 LowerHex for AudioVideoEnable

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

Formats the value using the given formatter.

impl Not for AudioVideoEnable

fn not(self) -> Self

Returns the complement of this set of flags.

type Output = AudioVideoEnable

The resulting type after applying the ! operator.

impl Octal for AudioVideoEnable

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

Formats the value using the given formatter.

impl Ord for AudioVideoEnable

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<AudioVideoEnable> for AudioVideoEnable

fn eq(&self, other: &AudioVideoEnable) -> 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<AudioVideoEnable> for AudioVideoEnable

fn partial_cmp(&self, other: &AudioVideoEnable) -> 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 Sub<AudioVideoEnable> for AudioVideoEnable

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

Returns the set difference of the two sets of flags.

type Output = AudioVideoEnable

The resulting type after applying the - operator.

impl SubAssign<AudioVideoEnable> for AudioVideoEnable

fn sub_assign(&mut self, other: Self)

Disables all flags enabled in the set.

impl UpperHex for AudioVideoEnable

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

Formats the value using the given formatter.

impl __BitFlags for AudioVideoEnable

fn ENABLE_VIDEO(&self) -> bool

fn ENABLE_AUDIO(&self) -> bool

fn USE_FAST_SAVESTATES(&self) -> bool

fn HARD_DISABLE_AUDIO(&self) -> bool

impl __BitFlags for AudioVideoEnable

const ENABLE_VIDEO: u32 = 1u32

const ENABLE_AUDIO: u32 = 2u32

const USE_FAST_SAVESTATES: u32 = 4u32

const HARD_DISABLE_AUDIO: u32 = 8u32

impl Copy for AudioVideoEnable

impl Eq for AudioVideoEnable

impl StructuralEq for AudioVideoEnable

impl StructuralPartialEq for AudioVideoEnable