gfx_hal::external_memory

Enum ExternalImageMemory

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pub enum ExternalImageMemory {
    OpaqueFd(Fd),
    DmaBuf(Fd, Option<DrmFormatImageProperties>),
    HostAllocation(Ptr),
    HostMappedForeignMemory(Ptr),
}
Expand description

Representation of an external memory for image creation.

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OpaqueFd(Fd)

This is supported on Unix only. Same as ExternalMemoryTypeFlags::OPAQUE_FD while holding a Fd.

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DmaBuf(Fd, Option<DrmFormatImageProperties>)

This is supported on Linux or Android only. Same as ExternalMemoryTypeFlags::DMA_BUF while holding a Fd.

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HostAllocation(Ptr)

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HostMappedForeignMemory(Ptr)

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impl ExternalImageMemory

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pub fn external_memory_type(&self) -> ExternalMemoryType

Get the ExternalMemoryType from this enum.

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pub fn platform_memory_type(&self) -> PlatformMemoryType

Get the PlatformMemoryType from this enum.

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pub fn fd(&self) -> Option<&Fd>

Get the associated unix file descriptor as (Fd).

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pub fn ptr(&self) -> Option<&Ptr>

Get the associated host pointer as (Ptr).

Trait Implementations§

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impl Debug for ExternalImageMemory

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.