fidl_fuchsia_camera_test_virtualcamera/

fidl_fuchsia_camera_test_virtualcamera.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 _};
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum Error {
    AlreadyAddedToDeviceWatcher = 1,
}

impl Error {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::AlreadyAddedToDeviceWatcher),
            _ => None,
        }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        self as u32
    }

    #[deprecated = "Strict enums should not use `is_unknown`"]
    #[inline]
    pub fn is_unknown(&self) -> bool {
        false
    }
}

#[derive(Clone, Debug, PartialEq)]
pub struct VirtualCameraDeviceAddStreamConfigRequest {
    pub index: u64,
    pub config: StreamConfig,
}

impl fidl::Persistable for VirtualCameraDeviceAddStreamConfigRequest {}

#[derive(Clone, Debug, Default, PartialEq)]
pub struct StreamConfig {
    pub width: Option<u32>,
    pub height: Option<u32>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for StreamConfig {}

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

impl fidl::endpoints::ProtocolMarker for VirtualCameraDeviceMarker {
    type Proxy = VirtualCameraDeviceProxy;
    type RequestStream = VirtualCameraDeviceRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = VirtualCameraDeviceSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.camera.test.virtualcamera.VirtualCameraDevice";
}
impl fidl::endpoints::DiscoverableProtocolMarker for VirtualCameraDeviceMarker {}
pub type VirtualCameraDeviceAddToDeviceWatcherResult = Result<(), Error>;

pub trait VirtualCameraDeviceProxyInterface: Send + Sync {
    type AddToDeviceWatcherResponseFut: std::future::Future<
            Output = Result<VirtualCameraDeviceAddToDeviceWatcherResult, fidl::Error>,
        > + Send;
    fn r#add_to_device_watcher(&self) -> Self::AddToDeviceWatcherResponseFut;
    fn r#add_stream_config(&self, index: u64, config: &StreamConfig) -> Result<(), fidl::Error>;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct VirtualCameraDeviceSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for VirtualCameraDeviceSynchronousProxy {
    type Proxy = VirtualCameraDeviceProxy;
    type Protocol = VirtualCameraDeviceMarker;

    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 VirtualCameraDeviceSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name =
            <VirtualCameraDeviceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    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<VirtualCameraDeviceEvent, fidl::Error> {
        VirtualCameraDeviceEvent::decode(self.client.wait_for_event(deadline)?)
    }

    pub fn r#add_to_device_watcher(
        &self,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<VirtualCameraDeviceAddToDeviceWatcherResult, fidl::Error> {
        let _response = self.client.send_query::<
            fidl::encoding::EmptyPayload,
            fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
        >(
            (),
            0x40cd846939ee70b,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.map(|x| x))
    }

    pub fn r#add_stream_config(
        &self,
        mut index: u64,
        mut config: &StreamConfig,
    ) -> Result<(), fidl::Error> {
        self.client.send::<VirtualCameraDeviceAddStreamConfigRequest>(
            (index, config),
            0x523883f87dc7befd,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

impl fidl::endpoints::Proxy for VirtualCameraDeviceProxy {
    type Protocol = VirtualCameraDeviceMarker;

    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 VirtualCameraDeviceProxy {
    /// Create a new Proxy for fuchsia.camera.test.virtualcamera/VirtualCameraDevice.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name =
            <VirtualCameraDeviceMarker 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) -> VirtualCameraDeviceEventStream {
        VirtualCameraDeviceEventStream { event_receiver: self.client.take_event_receiver() }
    }

    pub fn r#add_to_device_watcher(
        &self,
    ) -> fidl::client::QueryResponseFut<
        VirtualCameraDeviceAddToDeviceWatcherResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        VirtualCameraDeviceProxyInterface::r#add_to_device_watcher(self)
    }

    pub fn r#add_stream_config(
        &self,
        mut index: u64,
        mut config: &StreamConfig,
    ) -> Result<(), fidl::Error> {
        VirtualCameraDeviceProxyInterface::r#add_stream_config(self, index, config)
    }
}

impl VirtualCameraDeviceProxyInterface for VirtualCameraDeviceProxy {
    type AddToDeviceWatcherResponseFut = fidl::client::QueryResponseFut<
        VirtualCameraDeviceAddToDeviceWatcherResult,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#add_to_device_watcher(&self) -> Self::AddToDeviceWatcherResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<VirtualCameraDeviceAddToDeviceWatcherResult, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x40cd846939ee70b,
            >(_buf?)?;
            Ok(_response.map(|x| x))
        }
        self.client.send_query_and_decode::<
            fidl::encoding::EmptyPayload,
            VirtualCameraDeviceAddToDeviceWatcherResult,
        >(
            (),
            0x40cd846939ee70b,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    fn r#add_stream_config(
        &self,
        mut index: u64,
        mut config: &StreamConfig,
    ) -> Result<(), fidl::Error> {
        self.client.send::<VirtualCameraDeviceAddStreamConfigRequest>(
            (index, config),
            0x523883f87dc7befd,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

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

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

impl futures::Stream for VirtualCameraDeviceEventStream {
    type Item = Result<VirtualCameraDeviceEvent, 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(VirtualCameraDeviceEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

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

impl VirtualCameraDeviceEvent {
    /// Decodes a message buffer as a [`VirtualCameraDeviceEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<VirtualCameraDeviceEvent, 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:
                    <VirtualCameraDeviceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.camera.test.virtualcamera/VirtualCameraDevice.
pub struct VirtualCameraDeviceRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for VirtualCameraDeviceRequestStream {
    type Protocol = VirtualCameraDeviceMarker;
    type ControlHandle = VirtualCameraDeviceControlHandle;

    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 {
        VirtualCameraDeviceControlHandle { 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 VirtualCameraDeviceRequestStream {
    type Item = Result<VirtualCameraDeviceRequest, 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 VirtualCameraDeviceRequestStream 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 {
                0x40cd846939ee70b => {
                    header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                    let mut req = fidl::new_empty!(fidl::encoding::EmptyPayload, fidl::encoding::DefaultFuchsiaResourceDialect);
                    fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<fidl::encoding::EmptyPayload>(&header, _body_bytes, handles, &mut req)?;
                    let control_handle = VirtualCameraDeviceControlHandle {
                        inner: this.inner.clone(),
                    };
                    Ok(VirtualCameraDeviceRequest::AddToDeviceWatcher {
                        responder: VirtualCameraDeviceAddToDeviceWatcherResponder {
                            control_handle: std::mem::ManuallyDrop::new(control_handle),
                            tx_id: header.tx_id,
                        },
                    })
                }
                0x523883f87dc7befd => {
                    header.validate_request_tx_id(fidl::MethodType::OneWay)?;
                    let mut req = fidl::new_empty!(VirtualCameraDeviceAddStreamConfigRequest, fidl::encoding::DefaultFuchsiaResourceDialect);
                    fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<VirtualCameraDeviceAddStreamConfigRequest>(&header, _body_bytes, handles, &mut req)?;
                    let control_handle = VirtualCameraDeviceControlHandle {
                        inner: this.inner.clone(),
                    };
                    Ok(VirtualCameraDeviceRequest::AddStreamConfig {index: req.index,
config: req.config,

                        control_handle,
                    })
                }
                _ => Err(fidl::Error::UnknownOrdinal {
                    ordinal: header.ordinal,
                    protocol_name: <VirtualCameraDeviceMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                }),
            }))
            },
        )
    }
}

/// This interface provides a way for test clients to set up fake streams
/// using the 'virtual' camera.
#[derive(Debug)]
pub enum VirtualCameraDeviceRequest {
    AddToDeviceWatcher {
        responder: VirtualCameraDeviceAddToDeviceWatcherResponder,
    },
    AddStreamConfig {
        index: u64,
        config: StreamConfig,
        control_handle: VirtualCameraDeviceControlHandle,
    },
}

impl VirtualCameraDeviceRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_add_to_device_watcher(
        self,
    ) -> Option<(VirtualCameraDeviceAddToDeviceWatcherResponder)> {
        if let VirtualCameraDeviceRequest::AddToDeviceWatcher { responder } = self {
            Some((responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_add_stream_config(
        self,
    ) -> Option<(u64, StreamConfig, VirtualCameraDeviceControlHandle)> {
        if let VirtualCameraDeviceRequest::AddStreamConfig { index, config, control_handle } = self
        {
            Some((index, config, control_handle))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            VirtualCameraDeviceRequest::AddToDeviceWatcher { .. } => "add_to_device_watcher",
            VirtualCameraDeviceRequest::AddStreamConfig { .. } => "add_stream_config",
        }
    }
}

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

impl fidl::endpoints::ControlHandle for VirtualCameraDeviceControlHandle {
    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 VirtualCameraDeviceControlHandle {}

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

/// Set the the channel to be shutdown (see [`VirtualCameraDeviceControlHandle::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 VirtualCameraDeviceAddToDeviceWatcherResponder {
    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 VirtualCameraDeviceAddToDeviceWatcherResponder {
    type ControlHandle = VirtualCameraDeviceControlHandle;

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

    fn send_raw(&self, mut result: Result<(), Error>) -> Result<(), fidl::Error> {
        self.control_handle
            .inner
            .send::<fidl::encoding::ResultType<fidl::encoding::EmptyStruct, Error>>(
                result,
                self.tx_id,
                0x40cd846939ee70b,
                fidl::encoding::DynamicFlags::empty(),
            )
    }
}

mod internal {
    use super::*;
    unsafe impl fidl::encoding::TypeMarker for Error {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for Error {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D> for Error {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            encoder.write_num(self.into_primitive(), offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Error {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::AlreadyAddedToDeviceWatcher
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive(prim).ok_or(fidl::Error::InvalidEnumValue)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for VirtualCameraDeviceAddStreamConfigRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            24
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<VirtualCameraDeviceAddStreamConfigRequest, D>
        for &VirtualCameraDeviceAddStreamConfigRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VirtualCameraDeviceAddStreamConfigRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<VirtualCameraDeviceAddStreamConfigRequest, D>::encode(
                (
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(&self.index),
                    <StreamConfig as fidl::encoding::ValueTypeMarker>::borrow(&self.config),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u64, D>,
            T1: fidl::encoding::Encode<StreamConfig, D>,
        > fidl::encoding::Encode<VirtualCameraDeviceAddStreamConfigRequest, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<VirtualCameraDeviceAddStreamConfigRequest>(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 + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for VirtualCameraDeviceAddStreamConfigRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { index: fidl::new_empty!(u64, D), config: fidl::new_empty!(StreamConfig, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(u64, D, &mut self.index, decoder, offset + 0, _depth)?;
            fidl::decode!(StreamConfig, D, &mut self.config, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

    impl StreamConfig {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.height {
                return 2;
            }
            if let Some(_) = self.width {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for StreamConfig {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<StreamConfig, D>
        for &StreamConfig
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamConfig>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u32, D>(
                self.width.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u32, D>(
                self.height.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for StreamConfig {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.width.get_or_insert_with(|| fidl::new_empty!(u32, D));
                fidl::decode!(u32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.height.get_or_insert_with(|| fidl::new_empty!(u32, D));
                fidl::decode!(u32, D, val_ref, decoder, inner_offset, inner_depth)?;
                if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize)
                {
                    return Err(fidl::Error::InvalidNumBytesInEnvelope);
                }
                if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                    return Err(fidl::Error::InvalidNumHandlesInEnvelope);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }
}