fidl_fuchsia_images/

fidl_fuchsia_images.rs

// WARNING: This file is machine generated by fidlgen.

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::client::QueryResponseFut;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use fidl::endpoints::{ControlHandle as _, Responder as _};
pub use fidl_fuchsia_images__common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ImagePipe2AddBufferCollection2Request {
    pub buffer_collection_id: u32,
    pub buffer_collection_token:
        fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem2::BufferCollectionTokenMarker>,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ImagePipe2AddBufferCollection2Request
{
}

#[derive(Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ImagePipe2AddBufferCollectionRequest {
    pub buffer_collection_id: u32,
    pub buffer_collection_token:
        fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem::BufferCollectionTokenMarker>,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ImagePipe2AddBufferCollectionRequest
{
}

#[derive(Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ImagePipe2PresentImageRequest {
    pub image_id: u32,
    pub presentation_time: u64,
    pub acquire_fences: Vec<fidl::Event>,
    pub release_fences: Vec<fidl::Event>,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ImagePipe2PresentImageRequest
{
}

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct ImagePipe2Marker;

impl fidl::endpoints::ProtocolMarker for ImagePipe2Marker {
    type Proxy = ImagePipe2Proxy;
    type RequestStream = ImagePipe2RequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ImagePipe2SynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) ImagePipe2";
}

pub trait ImagePipe2ProxyInterface: Send + Sync {
    fn r#add_buffer_collection2(
        &self,
        buffer_collection_id: u32,
        buffer_collection_token: fidl::endpoints::ClientEnd<
            fidl_fuchsia_sysmem2::BufferCollectionTokenMarker,
        >,
    ) -> Result<(), fidl::Error>;
    fn r#add_buffer_collection(
        &self,
        buffer_collection_id: u32,
        buffer_collection_token: fidl::endpoints::ClientEnd<
            fidl_fuchsia_sysmem::BufferCollectionTokenMarker,
        >,
    ) -> Result<(), fidl::Error>;
    fn r#add_image(
        &self,
        image_id: u32,
        buffer_collection_id: u32,
        buffer_collection_index: u32,
        image_format: &fidl_fuchsia_sysmem::ImageFormat2,
    ) -> Result<(), fidl::Error>;
    fn r#remove_buffer_collection(&self, buffer_collection_id: u32) -> Result<(), fidl::Error>;
    fn r#remove_image(&self, image_id: u32) -> Result<(), fidl::Error>;
    type PresentImageResponseFut: std::future::Future<Output = Result<PresentationInfo, fidl::Error>>
        + Send;
    fn r#present_image(
        &self,
        image_id: u32,
        presentation_time: u64,
        acquire_fences: Vec<fidl::Event>,
        release_fences: Vec<fidl::Event>,
    ) -> Self::PresentImageResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ImagePipe2SynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ImagePipe2SynchronousProxy {
    type Proxy = ImagePipe2Proxy;
    type Protocol = ImagePipe2Marker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl ImagePipe2SynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        Self { client: fidl::client::sync::Client::new(channel) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<ImagePipe2Event, fidl::Error> {
        ImagePipe2Event::decode(self.client.wait_for_event::<ImagePipe2Marker>(deadline)?)
    }

    /// Adds a BufferCollection resource to the image pipe.
    ///
    /// The producer is expected to set constraints on this resource for images added
    /// via `AddImage()`. The consumer can set its constraints on
    /// `buffer_collection_token` before or after. Note that the buffers won't be
    /// allocated until all BufferCollectionToken instances are used to set
    /// constraints, on both the producer and consumer side. See collection.fidl for
    /// details.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `buffer_collection_id` is already registered
    pub fn r#add_buffer_collection2(
        &self,
        mut buffer_collection_id: u32,
        mut buffer_collection_token: fidl::endpoints::ClientEnd<
            fidl_fuchsia_sysmem2::BufferCollectionTokenMarker,
        >,
    ) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2AddBufferCollection2Request>(
            (buffer_collection_id, buffer_collection_token),
            0x181c72c935b0b4ee,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    pub fn r#add_buffer_collection(
        &self,
        mut buffer_collection_id: u32,
        mut buffer_collection_token: fidl::endpoints::ClientEnd<
            fidl_fuchsia_sysmem::BufferCollectionTokenMarker,
        >,
    ) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2AddBufferCollectionRequest>(
            (buffer_collection_id, buffer_collection_token),
            0x663ec76e20c87c05,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    /// Adds an image resource to image pipe.
    ///
    /// `buffer_collection_id` refers to the BufferCollectionToken instance that is
    /// registered via `AddBufferCollection()`. The underlying memory objects allocated
    /// are used to address to the image data. `buffer_collection_index` refers to the
    /// index of the memory object allocated in BufferCollection.
    ///
    /// `image_format` specifiies image properties. `coded_width` and `coded_height` are
    /// used to set image dimensions.
    ///
    /// It is valid to create multiple images backed by the same memory object; they
    /// may even overlap.  Consumers must detect this and handle it accordingly.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` is already registered
    /// - `buffer_collection_id` refers to an unregistered BufferCollection.
    /// - `buffer_collection_index` points to a resource index out of the initialized
    ///     BufferCollection bounds
    /// - No resource is allocated in the registered BufferCollection.
    pub fn r#add_image(
        &self,
        mut image_id: u32,
        mut buffer_collection_id: u32,
        mut buffer_collection_index: u32,
        mut image_format: &fidl_fuchsia_sysmem::ImageFormat2,
    ) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2AddImageRequest>(
            (image_id, buffer_collection_id, buffer_collection_index, image_format),
            0x23566808b13af395,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    /// Removes a BufferCollection resource from the pipe.
    ///
    /// The `buffer_collection_id` resource is detached as well as all Images that are
    /// associated with that BufferCollection. Leads to the same results as calling
    /// `RemoveImage()` on all Images for `buffer_collection_id`.
    ///
    /// The producer must wait for all release fences associated with the Images to
    /// be signaled before freeing or modifying the underlying memory object since
    /// the image may still be in use in the presentation queue.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `buffer_collection_id` does not reference a currently registered BufferCollection
    pub fn r#remove_buffer_collection(
        &self,
        mut buffer_collection_id: u32,
    ) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2RemoveBufferCollectionRequest>(
            (buffer_collection_id,),
            0x16bebb759a932299,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    /// Removes an image resource from the pipe.
    ///
    /// The `image_id` is detached from the image resource and is free to be
    /// reused to add a new image resource.
    ///
    /// Removing an image from the image pipe does not affect the presentation
    /// queue or the currently presented image.
    ///
    /// The producer must wait for all release fences associated with the image to
    /// be signaled before freeing or modifying the underlying memory object since
    /// the image may still be in use in the presentation queue.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` does not reference a currently registered image resource
    pub fn r#remove_image(&self, mut image_id: u32) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2RemoveImageRequest>(
            (image_id,),
            0x16e8edd0f4d50f68,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    /// Enqueues the specified image for presentation by the consumer.
    ///
    /// The `acquire_fences` are a set of fences which must all be signaled by
    /// the producer before the consumer presents the image.
    /// The `release_fences` are a set of fences which inform the producer that
    /// it's safe to free or modify the `image_id` image, and it's safe to
    /// re-use the fences in `acquire_fences`. The consumer must signal all the
    /// fences in `release_fences` after `image_id` is no longer being
    /// presented. The producer may reuse resources after any of the
    /// `release_fences` is signaled.
    ///
    /// This design allows a producer to distribute image processing across
    /// multiple threads / processes without unnecessary coordination delay.
    /// Each thread / process signals its own fence in `acquire_fences` when
    /// it's done rendering its piece of `image_id`, and waits on its own fence
    /// in `release_fences` to render new content in `image_id`.
    ///
    /// `presentation_time` specifies the time on or after which the
    /// client would like the enqueued operations should take visible effect
    /// (light up pixels on the screen), expressed in nanoseconds in the
    /// `CLOCK_MONOTONIC` timebase.  Desired presentation times must be
    /// monotonically non-decreasing.
    ///
    /// `presentation_info` returns timing information about the submitted frame
    /// and future frames (see presentation_info.fidl).
    ///
    /// The producer may decide not to signal `acquire_fences` for an image.
    /// In that case, if a later image is enqueued and later image's
    /// `presentation_time` is reached, the consumer presents the later image when
    /// later image's `acquire_fences` are signaled. The consumer also signals
    /// earlier image's `release_fences` and removes it from the presentation queue.
    /// This sequence works as a cancellation mechanism.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` does not reference a currently registered image resource
    pub fn r#present_image(
        &self,
        mut image_id: u32,
        mut presentation_time: u64,
        mut acquire_fences: Vec<fidl::Event>,
        mut release_fences: Vec<fidl::Event>,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<PresentationInfo, fidl::Error> {
        let _response = self.client.send_query::<
            ImagePipe2PresentImageRequest,
            ImagePipe2PresentImageResponse,
            ImagePipe2Marker,
        >(
            (image_id, presentation_time, acquire_fences.as_mut(), release_fences.as_mut(),),
            0x73cfb50f577c143a,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.presentation_info)
    }
}

#[cfg(target_os = "fuchsia")]
impl From<ImagePipe2SynchronousProxy> for zx::NullableHandle {
    fn from(value: ImagePipe2SynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for ImagePipe2SynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::FromClient for ImagePipe2SynchronousProxy {
    type Protocol = ImagePipe2Marker;

    fn from_client(value: fidl::endpoints::ClientEnd<ImagePipe2Marker>) -> Self {
        Self::new(value.into_channel())
    }
}

#[derive(Debug, Clone)]
pub struct ImagePipe2Proxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for ImagePipe2Proxy {
    type Protocol = ImagePipe2Marker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl ImagePipe2Proxy {
    /// Create a new Proxy for fuchsia.images/ImagePipe2.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ImagePipe2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> ImagePipe2EventStream {
        ImagePipe2EventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Adds a BufferCollection resource to the image pipe.
    ///
    /// The producer is expected to set constraints on this resource for images added
    /// via `AddImage()`. The consumer can set its constraints on
    /// `buffer_collection_token` before or after. Note that the buffers won't be
    /// allocated until all BufferCollectionToken instances are used to set
    /// constraints, on both the producer and consumer side. See collection.fidl for
    /// details.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `buffer_collection_id` is already registered
    pub fn r#add_buffer_collection2(
        &self,
        mut buffer_collection_id: u32,
        mut buffer_collection_token: fidl::endpoints::ClientEnd<
            fidl_fuchsia_sysmem2::BufferCollectionTokenMarker,
        >,
    ) -> Result<(), fidl::Error> {
        ImagePipe2ProxyInterface::r#add_buffer_collection2(
            self,
            buffer_collection_id,
            buffer_collection_token,
        )
    }

    pub fn r#add_buffer_collection(
        &self,
        mut buffer_collection_id: u32,
        mut buffer_collection_token: fidl::endpoints::ClientEnd<
            fidl_fuchsia_sysmem::BufferCollectionTokenMarker,
        >,
    ) -> Result<(), fidl::Error> {
        ImagePipe2ProxyInterface::r#add_buffer_collection(
            self,
            buffer_collection_id,
            buffer_collection_token,
        )
    }

    /// Adds an image resource to image pipe.
    ///
    /// `buffer_collection_id` refers to the BufferCollectionToken instance that is
    /// registered via `AddBufferCollection()`. The underlying memory objects allocated
    /// are used to address to the image data. `buffer_collection_index` refers to the
    /// index of the memory object allocated in BufferCollection.
    ///
    /// `image_format` specifiies image properties. `coded_width` and `coded_height` are
    /// used to set image dimensions.
    ///
    /// It is valid to create multiple images backed by the same memory object; they
    /// may even overlap.  Consumers must detect this and handle it accordingly.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` is already registered
    /// - `buffer_collection_id` refers to an unregistered BufferCollection.
    /// - `buffer_collection_index` points to a resource index out of the initialized
    ///     BufferCollection bounds
    /// - No resource is allocated in the registered BufferCollection.
    pub fn r#add_image(
        &self,
        mut image_id: u32,
        mut buffer_collection_id: u32,
        mut buffer_collection_index: u32,
        mut image_format: &fidl_fuchsia_sysmem::ImageFormat2,
    ) -> Result<(), fidl::Error> {
        ImagePipe2ProxyInterface::r#add_image(
            self,
            image_id,
            buffer_collection_id,
            buffer_collection_index,
            image_format,
        )
    }

    /// Removes a BufferCollection resource from the pipe.
    ///
    /// The `buffer_collection_id` resource is detached as well as all Images that are
    /// associated with that BufferCollection. Leads to the same results as calling
    /// `RemoveImage()` on all Images for `buffer_collection_id`.
    ///
    /// The producer must wait for all release fences associated with the Images to
    /// be signaled before freeing or modifying the underlying memory object since
    /// the image may still be in use in the presentation queue.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `buffer_collection_id` does not reference a currently registered BufferCollection
    pub fn r#remove_buffer_collection(
        &self,
        mut buffer_collection_id: u32,
    ) -> Result<(), fidl::Error> {
        ImagePipe2ProxyInterface::r#remove_buffer_collection(self, buffer_collection_id)
    }

    /// Removes an image resource from the pipe.
    ///
    /// The `image_id` is detached from the image resource and is free to be
    /// reused to add a new image resource.
    ///
    /// Removing an image from the image pipe does not affect the presentation
    /// queue or the currently presented image.
    ///
    /// The producer must wait for all release fences associated with the image to
    /// be signaled before freeing or modifying the underlying memory object since
    /// the image may still be in use in the presentation queue.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` does not reference a currently registered image resource
    pub fn r#remove_image(&self, mut image_id: u32) -> Result<(), fidl::Error> {
        ImagePipe2ProxyInterface::r#remove_image(self, image_id)
    }

    /// Enqueues the specified image for presentation by the consumer.
    ///
    /// The `acquire_fences` are a set of fences which must all be signaled by
    /// the producer before the consumer presents the image.
    /// The `release_fences` are a set of fences which inform the producer that
    /// it's safe to free or modify the `image_id` image, and it's safe to
    /// re-use the fences in `acquire_fences`. The consumer must signal all the
    /// fences in `release_fences` after `image_id` is no longer being
    /// presented. The producer may reuse resources after any of the
    /// `release_fences` is signaled.
    ///
    /// This design allows a producer to distribute image processing across
    /// multiple threads / processes without unnecessary coordination delay.
    /// Each thread / process signals its own fence in `acquire_fences` when
    /// it's done rendering its piece of `image_id`, and waits on its own fence
    /// in `release_fences` to render new content in `image_id`.
    ///
    /// `presentation_time` specifies the time on or after which the
    /// client would like the enqueued operations should take visible effect
    /// (light up pixels on the screen), expressed in nanoseconds in the
    /// `CLOCK_MONOTONIC` timebase.  Desired presentation times must be
    /// monotonically non-decreasing.
    ///
    /// `presentation_info` returns timing information about the submitted frame
    /// and future frames (see presentation_info.fidl).
    ///
    /// The producer may decide not to signal `acquire_fences` for an image.
    /// In that case, if a later image is enqueued and later image's
    /// `presentation_time` is reached, the consumer presents the later image when
    /// later image's `acquire_fences` are signaled. The consumer also signals
    /// earlier image's `release_fences` and removes it from the presentation queue.
    /// This sequence works as a cancellation mechanism.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` does not reference a currently registered image resource
    pub fn r#present_image(
        &self,
        mut image_id: u32,
        mut presentation_time: u64,
        mut acquire_fences: Vec<fidl::Event>,
        mut release_fences: Vec<fidl::Event>,
    ) -> fidl::client::QueryResponseFut<
        PresentationInfo,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ImagePipe2ProxyInterface::r#present_image(
            self,
            image_id,
            presentation_time,
            acquire_fences,
            release_fences,
        )
    }
}

impl ImagePipe2ProxyInterface for ImagePipe2Proxy {
    fn r#add_buffer_collection2(
        &self,
        mut buffer_collection_id: u32,
        mut buffer_collection_token: fidl::endpoints::ClientEnd<
            fidl_fuchsia_sysmem2::BufferCollectionTokenMarker,
        >,
    ) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2AddBufferCollection2Request>(
            (buffer_collection_id, buffer_collection_token),
            0x181c72c935b0b4ee,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    fn r#add_buffer_collection(
        &self,
        mut buffer_collection_id: u32,
        mut buffer_collection_token: fidl::endpoints::ClientEnd<
            fidl_fuchsia_sysmem::BufferCollectionTokenMarker,
        >,
    ) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2AddBufferCollectionRequest>(
            (buffer_collection_id, buffer_collection_token),
            0x663ec76e20c87c05,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    fn r#add_image(
        &self,
        mut image_id: u32,
        mut buffer_collection_id: u32,
        mut buffer_collection_index: u32,
        mut image_format: &fidl_fuchsia_sysmem::ImageFormat2,
    ) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2AddImageRequest>(
            (image_id, buffer_collection_id, buffer_collection_index, image_format),
            0x23566808b13af395,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    fn r#remove_buffer_collection(&self, mut buffer_collection_id: u32) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2RemoveBufferCollectionRequest>(
            (buffer_collection_id,),
            0x16bebb759a932299,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    fn r#remove_image(&self, mut image_id: u32) -> Result<(), fidl::Error> {
        self.client.send::<ImagePipe2RemoveImageRequest>(
            (image_id,),
            0x16e8edd0f4d50f68,
            fidl::encoding::DynamicFlags::empty(),
        )
    }

    type PresentImageResponseFut = fidl::client::QueryResponseFut<
        PresentationInfo,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#present_image(
        &self,
        mut image_id: u32,
        mut presentation_time: u64,
        mut acquire_fences: Vec<fidl::Event>,
        mut release_fences: Vec<fidl::Event>,
    ) -> Self::PresentImageResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<PresentationInfo, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                ImagePipe2PresentImageResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x73cfb50f577c143a,
            >(_buf?)?;
            Ok(_response.presentation_info)
        }
        self.client.send_query_and_decode::<ImagePipe2PresentImageRequest, PresentationInfo>(
            (image_id, presentation_time, acquire_fences.as_mut(), release_fences.as_mut()),
            0x73cfb50f577c143a,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

pub struct ImagePipe2EventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for ImagePipe2EventStream {}

impl futures::stream::FusedStream for ImagePipe2EventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for ImagePipe2EventStream {
    type Item = Result<ImagePipe2Event, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(ImagePipe2Event::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum ImagePipe2Event {}

impl ImagePipe2Event {
    /// Decodes a message buffer as a [`ImagePipe2Event`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<ImagePipe2Event, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <ImagePipe2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.images/ImagePipe2.
pub struct ImagePipe2RequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for ImagePipe2RequestStream {}

impl futures::stream::FusedStream for ImagePipe2RequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for ImagePipe2RequestStream {
    type Protocol = ImagePipe2Marker;
    type ControlHandle = ImagePipe2ControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        ImagePipe2ControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for ImagePipe2RequestStream {
    type Item = Result<ImagePipe2Request, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled ImagePipe2RequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))));
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x181c72c935b0b4ee => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            ImagePipe2AddBufferCollection2Request,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ImagePipe2AddBufferCollection2Request>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ImagePipe2ControlHandle { inner: this.inner.clone() };
                        Ok(ImagePipe2Request::AddBufferCollection2 {
                            buffer_collection_id: req.buffer_collection_id,
                            buffer_collection_token: req.buffer_collection_token,

                            control_handle,
                        })
                    }
                    0x663ec76e20c87c05 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            ImagePipe2AddBufferCollectionRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ImagePipe2AddBufferCollectionRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ImagePipe2ControlHandle { inner: this.inner.clone() };
                        Ok(ImagePipe2Request::AddBufferCollection {
                            buffer_collection_id: req.buffer_collection_id,
                            buffer_collection_token: req.buffer_collection_token,

                            control_handle,
                        })
                    }
                    0x23566808b13af395 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            ImagePipe2AddImageRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ImagePipe2AddImageRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ImagePipe2ControlHandle { inner: this.inner.clone() };
                        Ok(ImagePipe2Request::AddImage {
                            image_id: req.image_id,
                            buffer_collection_id: req.buffer_collection_id,
                            buffer_collection_index: req.buffer_collection_index,
                            image_format: req.image_format,

                            control_handle,
                        })
                    }
                    0x16bebb759a932299 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            ImagePipe2RemoveBufferCollectionRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ImagePipe2RemoveBufferCollectionRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ImagePipe2ControlHandle { inner: this.inner.clone() };
                        Ok(ImagePipe2Request::RemoveBufferCollection {
                            buffer_collection_id: req.buffer_collection_id,

                            control_handle,
                        })
                    }
                    0x16e8edd0f4d50f68 => {
                        header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                        let mut req = fidl::new_empty!(
                            ImagePipe2RemoveImageRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ImagePipe2RemoveImageRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ImagePipe2ControlHandle { inner: this.inner.clone() };
                        Ok(ImagePipe2Request::RemoveImage {
                            image_id: req.image_id,

                            control_handle,
                        })
                    }
                    0x73cfb50f577c143a => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ImagePipe2PresentImageRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ImagePipe2PresentImageRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ImagePipe2ControlHandle { inner: this.inner.clone() };
                        Ok(ImagePipe2Request::PresentImage {
                            image_id: req.image_id,
                            presentation_time: req.presentation_time,
                            acquire_fences: req.acquire_fences,
                            release_fences: req.release_fences,

                            responder: ImagePipe2PresentImageResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <ImagePipe2Marker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// ImagePipe is a mechanism for streaming shared images between a producer
/// and a consumer which may be running in different processes.
///
/// Conceptually, the image pipe maintains a table of image resources supplied
/// by the producer into which graphical content may be stored as well as a
/// presentation queue containing a sequence of images which the producer has
/// asked the consumer to present.
///
/// The presentation queue is initially empty.
///
/// Each entry in the presentation queue consists of an image together with a
/// pair of optional synchronization fences:
/// - Acquire fence: signaled by the producer when the image is ready to be consumed
/// - Release fence: signaled by the consumer when the image is free to be freed or
///   modified by the producer
///
/// The producer performs the following sequence of steps to present content:
/// - Allocate and add some number of BufferCollections to the image pipe to allow
/// consumer to set constraints.
/// - Allocate and add some number of images (often 2 or 3) to the image pipe
///   to establish a pool using `AddImage()`.
/// - Obtain the next available image from the pool.
/// - Ask the consumer to enqueue an image for presentation and provide fences
///   using `PresentImage()`.
/// - Start rendering the image.
/// - Signal the image's acquire fence when rendering is complete.
/// - Loop to present more image, listen for signals on release fences to recycle
///   images back into the pool.
///
/// The consumer performs the following sequence of steps for each image which
/// is enqueued in the presentation queue:
/// - Await signals on the image's acquire fence.
/// - If the fence wait cannot be satisfied or if some other error is detected,
///   close the image pipe.
///   Otherwise, begin presenting the image's content.
/// - Retire the previously presented image (if any) from the presentation queue
///   and signal its release fence when no longer needed.
/// - Continue presenting the same image until the next one is ready.  Loop.
///
/// If the producer wants to close the image pipe, it should:
/// - Close its side of the connection.
/// - Wait on all release fences for buffers that it has submitted with
///   `PresentImage()`.
/// - Proceed with resource cleanup.
///
/// When the consumer detects the image pipe has closed, it should:
/// - Stop using/presenting any images from the pipe.
/// - Unmap all memory objects associated with the images in the pipe.
/// - Close all BufferCollection resources.
/// - Signal all release fences for presented and queued buffers.
/// - Close all handles to fences.
/// - Close its side of the connection.
///
/// When either party detects that a fence has been abandoned (remotely closed
/// without being signaled) it should assume that the associated image is in
/// an indeterminate state.  This will typically happen when the other party
/// (or one of its delegates) has crashed.  The safest course of action is to
/// close the image pipe, release all resources which were shared with the
/// other party, and re-establish the connection to recover.
#[derive(Debug)]
pub enum ImagePipe2Request {
    /// Adds a BufferCollection resource to the image pipe.
    ///
    /// The producer is expected to set constraints on this resource for images added
    /// via `AddImage()`. The consumer can set its constraints on
    /// `buffer_collection_token` before or after. Note that the buffers won't be
    /// allocated until all BufferCollectionToken instances are used to set
    /// constraints, on both the producer and consumer side. See collection.fidl for
    /// details.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `buffer_collection_id` is already registered
    AddBufferCollection2 {
        buffer_collection_id: u32,
        buffer_collection_token:
            fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem2::BufferCollectionTokenMarker>,
        control_handle: ImagePipe2ControlHandle,
    },
    AddBufferCollection {
        buffer_collection_id: u32,
        buffer_collection_token:
            fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem::BufferCollectionTokenMarker>,
        control_handle: ImagePipe2ControlHandle,
    },
    /// Adds an image resource to image pipe.
    ///
    /// `buffer_collection_id` refers to the BufferCollectionToken instance that is
    /// registered via `AddBufferCollection()`. The underlying memory objects allocated
    /// are used to address to the image data. `buffer_collection_index` refers to the
    /// index of the memory object allocated in BufferCollection.
    ///
    /// `image_format` specifiies image properties. `coded_width` and `coded_height` are
    /// used to set image dimensions.
    ///
    /// It is valid to create multiple images backed by the same memory object; they
    /// may even overlap.  Consumers must detect this and handle it accordingly.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` is already registered
    /// - `buffer_collection_id` refers to an unregistered BufferCollection.
    /// - `buffer_collection_index` points to a resource index out of the initialized
    ///     BufferCollection bounds
    /// - No resource is allocated in the registered BufferCollection.
    AddImage {
        image_id: u32,
        buffer_collection_id: u32,
        buffer_collection_index: u32,
        image_format: fidl_fuchsia_sysmem::ImageFormat2,
        control_handle: ImagePipe2ControlHandle,
    },
    /// Removes a BufferCollection resource from the pipe.
    ///
    /// The `buffer_collection_id` resource is detached as well as all Images that are
    /// associated with that BufferCollection. Leads to the same results as calling
    /// `RemoveImage()` on all Images for `buffer_collection_id`.
    ///
    /// The producer must wait for all release fences associated with the Images to
    /// be signaled before freeing or modifying the underlying memory object since
    /// the image may still be in use in the presentation queue.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `buffer_collection_id` does not reference a currently registered BufferCollection
    RemoveBufferCollection { buffer_collection_id: u32, control_handle: ImagePipe2ControlHandle },
    /// Removes an image resource from the pipe.
    ///
    /// The `image_id` is detached from the image resource and is free to be
    /// reused to add a new image resource.
    ///
    /// Removing an image from the image pipe does not affect the presentation
    /// queue or the currently presented image.
    ///
    /// The producer must wait for all release fences associated with the image to
    /// be signaled before freeing or modifying the underlying memory object since
    /// the image may still be in use in the presentation queue.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` does not reference a currently registered image resource
    RemoveImage { image_id: u32, control_handle: ImagePipe2ControlHandle },
    /// Enqueues the specified image for presentation by the consumer.
    ///
    /// The `acquire_fences` are a set of fences which must all be signaled by
    /// the producer before the consumer presents the image.
    /// The `release_fences` are a set of fences which inform the producer that
    /// it's safe to free or modify the `image_id` image, and it's safe to
    /// re-use the fences in `acquire_fences`. The consumer must signal all the
    /// fences in `release_fences` after `image_id` is no longer being
    /// presented. The producer may reuse resources after any of the
    /// `release_fences` is signaled.
    ///
    /// This design allows a producer to distribute image processing across
    /// multiple threads / processes without unnecessary coordination delay.
    /// Each thread / process signals its own fence in `acquire_fences` when
    /// it's done rendering its piece of `image_id`, and waits on its own fence
    /// in `release_fences` to render new content in `image_id`.
    ///
    /// `presentation_time` specifies the time on or after which the
    /// client would like the enqueued operations should take visible effect
    /// (light up pixels on the screen), expressed in nanoseconds in the
    /// `CLOCK_MONOTONIC` timebase.  Desired presentation times must be
    /// monotonically non-decreasing.
    ///
    /// `presentation_info` returns timing information about the submitted frame
    /// and future frames (see presentation_info.fidl).
    ///
    /// The producer may decide not to signal `acquire_fences` for an image.
    /// In that case, if a later image is enqueued and later image's
    /// `presentation_time` is reached, the consumer presents the later image when
    /// later image's `acquire_fences` are signaled. The consumer also signals
    /// earlier image's `release_fences` and removes it from the presentation queue.
    /// This sequence works as a cancellation mechanism.
    ///
    /// The following errors will cause the connection to be closed:
    /// - `image_id` does not reference a currently registered image resource
    PresentImage {
        image_id: u32,
        presentation_time: u64,
        acquire_fences: Vec<fidl::Event>,
        release_fences: Vec<fidl::Event>,
        responder: ImagePipe2PresentImageResponder,
    },
}

impl ImagePipe2Request {
    #[allow(irrefutable_let_patterns)]
    pub fn into_add_buffer_collection2(
        self,
    ) -> Option<(
        u32,
        fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem2::BufferCollectionTokenMarker>,
        ImagePipe2ControlHandle,
    )> {
        if let ImagePipe2Request::AddBufferCollection2 {
            buffer_collection_id,
            buffer_collection_token,
            control_handle,
        } = self
        {
            Some((buffer_collection_id, buffer_collection_token, control_handle))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_add_buffer_collection(
        self,
    ) -> Option<(
        u32,
        fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem::BufferCollectionTokenMarker>,
        ImagePipe2ControlHandle,
    )> {
        if let ImagePipe2Request::AddBufferCollection {
            buffer_collection_id,
            buffer_collection_token,
            control_handle,
        } = self
        {
            Some((buffer_collection_id, buffer_collection_token, control_handle))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_add_image(
        self,
    ) -> Option<(u32, u32, u32, fidl_fuchsia_sysmem::ImageFormat2, ImagePipe2ControlHandle)> {
        if let ImagePipe2Request::AddImage {
            image_id,
            buffer_collection_id,
            buffer_collection_index,
            image_format,
            control_handle,
        } = self
        {
            Some((
                image_id,
                buffer_collection_id,
                buffer_collection_index,
                image_format,
                control_handle,
            ))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_remove_buffer_collection(self) -> Option<(u32, ImagePipe2ControlHandle)> {
        if let ImagePipe2Request::RemoveBufferCollection { buffer_collection_id, control_handle } =
            self
        {
            Some((buffer_collection_id, control_handle))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_remove_image(self) -> Option<(u32, ImagePipe2ControlHandle)> {
        if let ImagePipe2Request::RemoveImage { image_id, control_handle } = self {
            Some((image_id, control_handle))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_present_image(
        self,
    ) -> Option<(u32, u64, Vec<fidl::Event>, Vec<fidl::Event>, ImagePipe2PresentImageResponder)>
    {
        if let ImagePipe2Request::PresentImage {
            image_id,
            presentation_time,
            acquire_fences,
            release_fences,
            responder,
        } = self
        {
            Some((image_id, presentation_time, acquire_fences, release_fences, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ImagePipe2Request::AddBufferCollection2 { .. } => "add_buffer_collection2",
            ImagePipe2Request::AddBufferCollection { .. } => "add_buffer_collection",
            ImagePipe2Request::AddImage { .. } => "add_image",
            ImagePipe2Request::RemoveBufferCollection { .. } => "remove_buffer_collection",
            ImagePipe2Request::RemoveImage { .. } => "remove_image",
            ImagePipe2Request::PresentImage { .. } => "present_image",
        }
    }
}

#[derive(Debug, Clone)]
pub struct ImagePipe2ControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for ImagePipe2ControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }

    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl ImagePipe2ControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct ImagePipe2PresentImageResponder {
    control_handle: std::mem::ManuallyDrop<ImagePipe2ControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`ImagePipe2ControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for ImagePipe2PresentImageResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for ImagePipe2PresentImageResponder {
    type ControlHandle = ImagePipe2ControlHandle;

    fn control_handle(&self) -> &ImagePipe2ControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl ImagePipe2PresentImageResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut presentation_info: &PresentationInfo) -> Result<(), fidl::Error> {
        let _result = self.send_raw(presentation_info);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(
        self,
        mut presentation_info: &PresentationInfo,
    ) -> Result<(), fidl::Error> {
        let _result = self.send_raw(presentation_info);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut presentation_info: &PresentationInfo) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<ImagePipe2PresentImageResponse>(
            (presentation_info,),
            self.tx_id,
            0x73cfb50f577c143a,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

mod internal {
    use super::*;

    impl fidl::encoding::ResourceTypeMarker for ImagePipe2AddBufferCollection2Request {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ImagePipe2AddBufferCollection2Request {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            4
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            8
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ImagePipe2AddBufferCollection2Request,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ImagePipe2AddBufferCollection2Request
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ImagePipe2AddBufferCollection2Request>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                ImagePipe2AddBufferCollection2Request,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.buffer_collection_id),
                    <fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<
                            fidl_fuchsia_sysmem2::BufferCollectionTokenMarker,
                        >,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        &mut self.buffer_collection_token,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<u32, fidl::encoding::DefaultFuchsiaResourceDialect>,
        T1: fidl::encoding::Encode<
                fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem2::BufferCollectionTokenMarker>,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
    >
        fidl::encoding::Encode<
            ImagePipe2AddBufferCollection2Request,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ImagePipe2AddBufferCollection2Request>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 4, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ImagePipe2AddBufferCollection2Request
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                buffer_collection_id: fidl::new_empty!(
                    u32,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                buffer_collection_token: fidl::new_empty!(
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<
                            fidl_fuchsia_sysmem2::BufferCollectionTokenMarker,
                        >,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(
                u32,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.buffer_collection_id,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(
                fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem2::BufferCollectionTokenMarker>,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.buffer_collection_token,
                decoder,
                offset + 4,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ImagePipe2AddBufferCollectionRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ImagePipe2AddBufferCollectionRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            4
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            8
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ImagePipe2AddBufferCollectionRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ImagePipe2AddBufferCollectionRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ImagePipe2AddBufferCollectionRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                ImagePipe2AddBufferCollectionRequest,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.buffer_collection_id),
                    <fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<
                            fidl_fuchsia_sysmem::BufferCollectionTokenMarker,
                        >,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        &mut self.buffer_collection_token,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<u32, fidl::encoding::DefaultFuchsiaResourceDialect>,
        T1: fidl::encoding::Encode<
                fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem::BufferCollectionTokenMarker>,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
    >
        fidl::encoding::Encode<
            ImagePipe2AddBufferCollectionRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ImagePipe2AddBufferCollectionRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 4, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ImagePipe2AddBufferCollectionRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                buffer_collection_id: fidl::new_empty!(
                    u32,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                buffer_collection_token: fidl::new_empty!(
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<
                            fidl_fuchsia_sysmem::BufferCollectionTokenMarker,
                        >,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(
                u32,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.buffer_collection_id,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(
                fidl::encoding::Endpoint<
                    fidl::endpoints::ClientEnd<fidl_fuchsia_sysmem::BufferCollectionTokenMarker>,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.buffer_collection_token,
                decoder,
                offset + 4,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ImagePipe2PresentImageRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ImagePipe2PresentImageRequest {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            48
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ImagePipe2PresentImageRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ImagePipe2PresentImageRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ImagePipe2PresentImageRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                ImagePipe2PresentImageRequest,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.image_id),
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.presentation_time),
                    <fidl::encoding::Vector<
                        fidl::encoding::HandleType<
                            fidl::Event,
                            { fidl::ObjectType::EVENT.into_raw() },
                            2147483648,
                        >,
                        16,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        &mut self.acquire_fences,
                    ),
                    <fidl::encoding::Vector<
                        fidl::encoding::HandleType<
                            fidl::Event,
                            { fidl::ObjectType::EVENT.into_raw() },
                            2147483648,
                        >,
                        16,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        &mut self.release_fences,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        T0: fidl::encoding::Encode<u32, fidl::encoding::DefaultFuchsiaResourceDialect>,
        T1: fidl::encoding::Encode<u64, fidl::encoding::DefaultFuchsiaResourceDialect>,
        T2: fidl::encoding::Encode<
                fidl::encoding::Vector<
                    fidl::encoding::HandleType<
                        fidl::Event,
                        { fidl::ObjectType::EVENT.into_raw() },
                        2147483648,
                    >,
                    16,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        T3: fidl::encoding::Encode<
                fidl::encoding::Vector<
                    fidl::encoding::HandleType<
                        fidl::Event,
                        { fidl::ObjectType::EVENT.into_raw() },
                        2147483648,
                    >,
                    16,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
    >
        fidl::encoding::Encode<
            ImagePipe2PresentImageRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0, T1, T2, T3)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ImagePipe2PresentImageRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 16, depth)?;
            self.3.encode(encoder, offset + 32, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ImagePipe2PresentImageRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                image_id: fidl::new_empty!(u32, fidl::encoding::DefaultFuchsiaResourceDialect),
                presentation_time: fidl::new_empty!(
                    u64,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                acquire_fences: fidl::new_empty!(
                    fidl::encoding::Vector<
                        fidl::encoding::HandleType<
                            fidl::Event,
                            { fidl::ObjectType::EVENT.into_raw() },
                            2147483648,
                        >,
                        16,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                release_fences: fidl::new_empty!(
                    fidl::encoding::Vector<
                        fidl::encoding::HandleType<
                            fidl::Event,
                            { fidl::ObjectType::EVENT.into_raw() },
                            2147483648,
                        >,
                        16,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(
                u32,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.image_id,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(
                u64,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.presentation_time,
                decoder,
                offset + 8,
                _depth
            )?;
            fidl::decode!(
                fidl::encoding::Vector<
                    fidl::encoding::HandleType<
                        fidl::Event,
                        { fidl::ObjectType::EVENT.into_raw() },
                        2147483648,
                    >,
                    16,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.acquire_fences,
                decoder,
                offset + 16,
                _depth
            )?;
            fidl::decode!(
                fidl::encoding::Vector<
                    fidl::encoding::HandleType<
                        fidl::Event,
                        { fidl::ObjectType::EVENT.into_raw() },
                        2147483648,
                    >,
                    16,
                >,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.release_fences,
                decoder,
                offset + 32,
                _depth
            )?;
            Ok(())
        }
    }
}