fidl_fuchsia_camera3_common/

fidl_fuchsia_camera3_common.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::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

pub type DeviceId = u64;

pub const MAX_CONFIGURATIONS_PER_CAMERA: u32 = 256;

pub const MAX_IDENTIFIER_LENGTH: u32 = 256;

pub const MAX_RESOLUTIONS_PER_STREAM: u32 = 256;

pub const MAX_STREAMS_PER_CONFIGURATION: u32 = 256;

pub const MAX_WATCH_DEVICES_EVENTS: u32 = 256;

/// Describes the intended orientation of a given stream relative to its encoded data. For clarity,
/// the documentation for each enum value is accompanied by an orientation of the chiral '⮬' symbol
/// illustrating the orientation of the stream's encoded data.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum Orientation {
    /// ⮬: The content is already in the correct orientation.
    Up = 1,
    /// ⮯: The content must be rotated 180 degrees to appear correct.
    Down = 2,
    /// ⮫: The content must be rotated 90 degrees left (counter-clockwise) to appear correct.
    Left = 3,
    /// ⮨: The content must be rotated 90 degrees right (clockwise) to appear correct.
    Right = 4,
    /// ⮭: The content must be flipped horizontally to appear correct.
    UpFlipped = 5,
    /// ⮮: The content must be flipped horizontally then rotated 180 degrees to appear correct.
    DownFlipped = 6,
    /// ⮪: The content must be flipped horizontally then rotated 90 degrees left (counter-clockwise) to appear correct.
    LeftFlipped = 7,
    /// ⮩: The content must be flipped horizontally then rotated 90 degrees right (clockwise) to appear correct.
    RightFlipped = 8,
}

impl Orientation {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::Up),
            2 => Some(Self::Down),
            3 => Some(Self::Left),
            4 => Some(Self::Right),
            5 => Some(Self::UpFlipped),
            6 => Some(Self::DownFlipped),
            7 => Some(Self::LeftFlipped),
            8 => Some(Self::RightFlipped),
            _ => None,
        }
    }

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

/// Describes a distinct configuration for the camera.
#[derive(Clone, Debug, PartialEq)]
pub struct Configuration {
    /// Descriptions of streams that are concurrently available in the configuration.
    pub streams: Vec<StreamProperties>,
}

impl fidl::Persistable for Configuration {}

#[derive(Clone, Debug, PartialEq)]
pub struct DeviceGetConfigurations2Response {
    pub configurations: Vec<Configuration2>,
}

impl fidl::Persistable for DeviceGetConfigurations2Response {}

#[derive(Clone, Debug, PartialEq)]
pub struct DeviceGetConfigurationsResponse {
    pub configurations: Vec<Configuration>,
}

impl fidl::Persistable for DeviceGetConfigurationsResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct DeviceGetIdentifierResponse {
    pub identifier: Option<String>,
}

impl fidl::Persistable for DeviceGetIdentifierResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct DeviceSetCurrentConfigurationRequest {
    pub index: u32,
}

impl fidl::Persistable for DeviceSetCurrentConfigurationRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct DeviceSetSoftwareMuteStateRequest {
    pub muted: bool,
}

impl fidl::Persistable for DeviceSetSoftwareMuteStateRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct DeviceWatchCurrentConfigurationResponse {
    pub index: u32,
}

impl fidl::Persistable for DeviceWatchCurrentConfigurationResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct DeviceWatchMuteStateResponse {
    pub software_muted: bool,
    pub hardware_muted: bool,
}

impl fidl::Persistable for DeviceWatchMuteStateResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct DeviceWatcherWatchDevicesResponse {
    pub events: Vec<WatchDevicesEvent>,
}

impl fidl::Persistable for DeviceWatcherWatchDevicesResponse {}

/// The frequency at which a Stream produces frames. The value is `numerator` / `denominator`, with
/// units of frames-per-second (Hz). The representation is not necessarily an irreducible fraction.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FrameRate {
    /// Fraction numerator.
    pub numerator: u32,
    /// Fraction denominator. This value will not be zero.
    pub denominator: u32,
}

impl fidl::Persistable for FrameRate {}

#[derive(Clone, Debug, PartialEq)]
pub struct StreamGetProperties2Response {
    pub properties: StreamProperties2,
}

impl fidl::Persistable for StreamGetProperties2Response {}

#[derive(Clone, Debug, PartialEq)]
pub struct StreamGetPropertiesResponse {
    pub properties: StreamProperties,
}

impl fidl::Persistable for StreamGetPropertiesResponse {}

/// Describes the properties of a given stream.
#[derive(Clone, Debug, PartialEq)]
pub struct StreamProperties {
    /// Describes the native image format used by a stream.
    pub image_format: fidl_fuchsia_sysmem_common::ImageFormat2,
    /// Describes the framerate used by a stream.
    pub frame_rate: FrameRate,
    /// Indicates whether a stream supports the SetCropRegion method.
    pub supports_crop_region: bool,
}

impl fidl::Persistable for StreamProperties {}

#[derive(Clone, Debug, PartialEq)]
pub struct StreamSetCropRegionRequest {
    pub region: Option<Box<fidl_fuchsia_math_common::RectF>>,
}

impl fidl::Persistable for StreamSetCropRegionRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct StreamSetResolutionRequest {
    pub coded_size: fidl_fuchsia_math_common::Size,
}

impl fidl::Persistable for StreamSetResolutionRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct StreamWatchCropRegionResponse {
    pub region: Option<Box<fidl_fuchsia_math_common::RectF>>,
}

impl fidl::Persistable for StreamWatchCropRegionResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct StreamWatchOrientationResponse {
    pub orientation: Orientation,
}

impl fidl::Persistable for StreamWatchOrientationResponse {}

#[derive(Clone, Debug, PartialEq)]
pub struct StreamWatchResolutionResponse {
    pub coded_size: fidl_fuchsia_math_common::Size,
}

impl fidl::Persistable for StreamWatchResolutionResponse {}

/// Describes a distinct configuration for the camera.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct Configuration2 {
    /// Descriptions of streams that are concurrently available in the configuration.
    pub streams: Option<Vec<StreamProperties2>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for Configuration2 {}

/// Describes the properties of a given stream.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct StreamProperties2 {
    /// Describes the native image format used by a stream.
    pub image_format: Option<fidl_fuchsia_sysmem_common::ImageFormat2>,
    /// Describes the framerate used by a stream.
    pub frame_rate: Option<FrameRate>,
    /// Indicates whether a stream supports the SetCropRegion method.
    pub supports_crop_region: Option<bool>,
    /// Describes the precise resolutions supported by a stream, i.e. those for which SetResolution
    /// results in a WatchResolution callback of the same value. If empty, it indicates that the
    /// stream supports arbitrary resolutions. If non-empty, the list contains at least one element
    /// reflecting the native resolution specified by |image_format|.
    pub supported_resolutions: Option<Vec<fidl_fuchsia_math_common::Size>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for StreamProperties2 {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum WatchDevicesEvent {
    /// Indicates an existing camera with the provided ID is still available.
    Existing(u64),
    /// Indicates a new camera with the provided ID is now available.
    Added(u64),
    /// Indicates an existing camera with the provided ID is no longer available.
    Removed(u64),
}

impl WatchDevicesEvent {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Existing(_) => 1,
            Self::Added(_) => 2,
            Self::Removed(_) => 3,
        }
    }
}

impl fidl::Persistable for WatchDevicesEvent {}

pub mod device_ordinals {
    pub const GET_IDENTIFIER: u64 = 0x1417d1af92667e47;
    pub const GET_CONFIGURATIONS: u64 = 0x26c7a180d8eef786;
    pub const GET_CONFIGURATIONS2: u64 = 0x2667155e740fb9ff;
    pub const WATCH_CURRENT_CONFIGURATION: u64 = 0x7a82832a127834b7;
    pub const SET_CURRENT_CONFIGURATION: u64 = 0x11d65c8f92593b87;
    pub const WATCH_MUTE_STATE: u64 = 0x2bafd68e6e7ef2fb;
    pub const SET_SOFTWARE_MUTE_STATE: u64 = 0x6bb19cb687f560a5;
    pub const CONNECT_TO_STREAM: u64 = 0x290a86763174c4c3;
    pub const REBIND: u64 = 0x24811b7cee5c51c3;
}

pub mod device_watcher_ordinals {
    pub const WATCH_DEVICES: u64 = 0x5f38542e295e8575;
    pub const CONNECT_TO_DEVICE: u64 = 0x5f175a8283b26b2d;
}

pub mod stream__ordinals {
    pub const GET_PROPERTIES: u64 = 0x13662921504b55f7;
    pub const GET_PROPERTIES2: u64 = 0x70346d69a8cbc391;
    pub const SET_CROP_REGION: u64 = 0x72dde73bf7a94302;
    pub const WATCH_CROP_REGION: u64 = 0x4c28250035dbbb90;
    pub const SET_RESOLUTION: u64 = 0x6ef2c207ff2b74e3;
    pub const WATCH_RESOLUTION: u64 = 0x6c7b28be2b72ea7f;
    pub const SET_BUFFER_COLLECTION2: u64 = 0x6691d2eed219c8e6;
    pub const SET_BUFFER_COLLECTION: u64 = 0x730ab5c4ee023c6d;
    pub const WATCH_BUFFER_COLLECTION2: u64 = 0x60c9daa36b3d2cf1;
    pub const WATCH_BUFFER_COLLECTION: u64 = 0x35d855a45e19e5d6;
    pub const WATCH_ORIENTATION: u64 = 0x1f0d1cd93daa1dd4;
    pub const GET_NEXT_FRAME: u64 = 0x4b06b8dfbcbdc658;
    pub const GET_NEXT_FRAME2: u64 = 0x7142a7a6aa6a6f10;
    pub const REBIND: u64 = 0x75b84fa09b68dbef;
}

mod internal {
    use super::*;
    unsafe impl fidl::encoding::TypeMarker for Orientation {
        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 Orientation {
        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 Orientation {
        #[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 Orientation {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Up
        }

        #[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 Configuration {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Configuration {
        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<Configuration, D>
        for &Configuration
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Configuration>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Configuration, D>::encode(
                (
                    <fidl::encoding::Vector<StreamProperties, 256> as fidl::encoding::ValueTypeMarker>::borrow(&self.streams),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Vector<StreamProperties, 256>, D>,
    > fidl::encoding::Encode<Configuration, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Configuration>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Configuration {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { streams: fidl::new_empty!(fidl::encoding::Vector<StreamProperties, 256>, 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!(fidl::encoding::Vector<StreamProperties, 256>, D, &mut self.streams, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for DeviceGetConfigurations2Response {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for DeviceGetConfigurations2Response {
        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<DeviceGetConfigurations2Response, D>
        for &DeviceGetConfigurations2Response
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceGetConfigurations2Response>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<DeviceGetConfigurations2Response, D>::encode(
                (
                    <fidl::encoding::Vector<Configuration2, 256> as fidl::encoding::ValueTypeMarker>::borrow(&self.configurations),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Vector<Configuration2, 256>, D>,
    > fidl::encoding::Encode<DeviceGetConfigurations2Response, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceGetConfigurations2Response>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for DeviceGetConfigurations2Response
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                configurations: fidl::new_empty!(fidl::encoding::Vector<Configuration2, 256>, 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!(fidl::encoding::Vector<Configuration2, 256>, D, &mut self.configurations, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for DeviceGetConfigurationsResponse {
        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<DeviceGetConfigurationsResponse, D>
        for &DeviceGetConfigurationsResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceGetConfigurationsResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<DeviceGetConfigurationsResponse, D>::encode(
                (
                    <fidl::encoding::Vector<Configuration, 256> as fidl::encoding::ValueTypeMarker>::borrow(&self.configurations),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Vector<Configuration, 256>, D>,
    > fidl::encoding::Encode<DeviceGetConfigurationsResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceGetConfigurationsResponse>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for DeviceGetConfigurationsResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { configurations: fidl::new_empty!(fidl::encoding::Vector<Configuration, 256>, 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!(fidl::encoding::Vector<Configuration, 256>, D, &mut self.configurations, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for DeviceGetIdentifierResponse {
        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<DeviceGetIdentifierResponse, D> for &DeviceGetIdentifierResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceGetIdentifierResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<DeviceGetIdentifierResponse, D>::encode(
                (
                    <fidl::encoding::Optional<fidl::encoding::BoundedString<256>> as fidl::encoding::ValueTypeMarker>::borrow(&self.identifier),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Optional<fidl::encoding::BoundedString<256>>, D>,
    > fidl::encoding::Encode<DeviceGetIdentifierResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceGetIdentifierResponse>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for DeviceGetIdentifierResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                identifier: fidl::new_empty!(
                    fidl::encoding::Optional<fidl::encoding::BoundedString<256>>,
                    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!(
                fidl::encoding::Optional<fidl::encoding::BoundedString<256>>,
                D,
                &mut self.identifier,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            4
        }
        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<DeviceSetCurrentConfigurationRequest, D>
        for &DeviceSetCurrentConfigurationRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceSetCurrentConfigurationRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut DeviceSetCurrentConfigurationRequest)
                    .write_unaligned((self as *const DeviceSetCurrentConfigurationRequest).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<u32, D>>
        fidl::encoding::Encode<DeviceSetCurrentConfigurationRequest, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceSetCurrentConfigurationRequest>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for DeviceSetCurrentConfigurationRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { index: fidl::new_empty!(u32, 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);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 4);
            }
            Ok(())
        }
    }

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

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            1
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            1
        }
    }

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

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for DeviceSetSoftwareMuteStateRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { muted: fidl::new_empty!(bool, 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!(bool, D, &mut self.muted, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            4
        }
        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<DeviceWatchCurrentConfigurationResponse, D>
        for &DeviceWatchCurrentConfigurationResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceWatchCurrentConfigurationResponse>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut DeviceWatchCurrentConfigurationResponse).write_unaligned(
                    (self as *const DeviceWatchCurrentConfigurationResponse).read(),
                );
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<u32, D>>
        fidl::encoding::Encode<DeviceWatchCurrentConfigurationResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceWatchCurrentConfigurationResponse>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for DeviceWatchCurrentConfigurationResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { index: fidl::new_empty!(u32, 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);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 4);
            }
            Ok(())
        }
    }

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

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            1
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            2
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<DeviceWatchMuteStateResponse, D> for &DeviceWatchMuteStateResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceWatchMuteStateResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<DeviceWatchMuteStateResponse, D>::encode(
                (
                    <bool as fidl::encoding::ValueTypeMarker>::borrow(&self.software_muted),
                    <bool as fidl::encoding::ValueTypeMarker>::borrow(&self.hardware_muted),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<bool, D>,
        T1: fidl::encoding::Encode<bool, D>,
    > fidl::encoding::Encode<DeviceWatchMuteStateResponse, 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::<DeviceWatchMuteStateResponse>(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 + 1, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for DeviceWatchMuteStateResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                software_muted: fidl::new_empty!(bool, D),
                hardware_muted: fidl::new_empty!(bool, 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!(bool, D, &mut self.software_muted, decoder, offset + 0, _depth)?;
            fidl::decode!(bool, D, &mut self.hardware_muted, decoder, offset + 1, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for DeviceWatcherWatchDevicesResponse {
        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<DeviceWatcherWatchDevicesResponse, D>
        for &DeviceWatcherWatchDevicesResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceWatcherWatchDevicesResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<DeviceWatcherWatchDevicesResponse, D>::encode(
                (
                    <fidl::encoding::Vector<WatchDevicesEvent, 256> as fidl::encoding::ValueTypeMarker>::borrow(&self.events),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Vector<WatchDevicesEvent, 256>, D>,
    > fidl::encoding::Encode<DeviceWatcherWatchDevicesResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<DeviceWatcherWatchDevicesResponse>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for DeviceWatcherWatchDevicesResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { events: fidl::new_empty!(fidl::encoding::Vector<WatchDevicesEvent, 256>, 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!(fidl::encoding::Vector<WatchDevicesEvent, 256>, D, &mut self.events, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FrameRate {
        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
        }
        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<FrameRate, D>
        for &FrameRate
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FrameRate>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FrameRate).write_unaligned((self as *const FrameRate).read());
                // Zero out padding regions. Unlike `fidl_struct_impl_noncopy!`, this must be
                // done second because the memcpy will write garbage to these bytes.
            }
            Ok(())
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<u32, D>,
        T1: fidl::encoding::Encode<u32, D>,
    > fidl::encoding::Encode<FrameRate, 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::<FrameRate>(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<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for FrameRate {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { numerator: fidl::new_empty!(u32, D), denominator: fidl::new_empty!(u32, 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);
            let buf_ptr = unsafe { decoder.buf.as_ptr().add(offset) };
            // Verify that padding bytes are zero.
            // Copy from the buffer into the object.
            unsafe {
                std::ptr::copy_nonoverlapping(buf_ptr, self as *mut Self as *mut u8, 8);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for StreamGetProperties2Response {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for StreamGetProperties2Response {
        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<StreamGetProperties2Response, D> for &StreamGetProperties2Response
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamGetProperties2Response>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<StreamGetProperties2Response, D>::encode(
                (<StreamProperties2 as fidl::encoding::ValueTypeMarker>::borrow(&self.properties),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<StreamProperties2, D>,
    > fidl::encoding::Encode<StreamGetProperties2Response, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamGetProperties2Response>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for StreamGetProperties2Response
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { properties: fidl::new_empty!(StreamProperties2, 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!(StreamProperties2, D, &mut self.properties, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            72
        }
    }

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

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for StreamGetPropertiesResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { properties: fidl::new_empty!(StreamProperties, 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!(StreamProperties, D, &mut self.properties, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            72
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<StreamProperties, D>
        for &StreamProperties
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamProperties>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<StreamProperties, D>::encode(
                (
                    <fidl_fuchsia_sysmem_common::ImageFormat2 as fidl::encoding::ValueTypeMarker>::borrow(&self.image_format),
                    <FrameRate as fidl::encoding::ValueTypeMarker>::borrow(&self.frame_rate),
                    <bool as fidl::encoding::ValueTypeMarker>::borrow(&self.supports_crop_region),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl_fuchsia_sysmem_common::ImageFormat2, D>,
        T1: fidl::encoding::Encode<FrameRate, D>,
        T2: fidl::encoding::Encode<bool, D>,
    > fidl::encoding::Encode<StreamProperties, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamProperties>(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(64);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 56, depth)?;
            self.2.encode(encoder, offset + 64, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for StreamProperties {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                image_format: fidl::new_empty!(fidl_fuchsia_sysmem_common::ImageFormat2, D),
                frame_rate: fidl::new_empty!(FrameRate, D),
                supports_crop_region: fidl::new_empty!(bool, 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.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(64) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffffffffff00u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 64 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(
                fidl_fuchsia_sysmem_common::ImageFormat2,
                D,
                &mut self.image_format,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(FrameRate, D, &mut self.frame_rate, decoder, offset + 56, _depth)?;
            fidl::decode!(bool, D, &mut self.supports_crop_region, decoder, offset + 64, _depth)?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<StreamSetCropRegionRequest, D> for &StreamSetCropRegionRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamSetCropRegionRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<StreamSetCropRegionRequest, D>::encode(
                (
                    <fidl::encoding::Boxed<fidl_fuchsia_math_common::RectF> as fidl::encoding::ValueTypeMarker>::borrow(&self.region),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Boxed<fidl_fuchsia_math_common::RectF>, D>,
    > fidl::encoding::Encode<StreamSetCropRegionRequest, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamSetCropRegionRequest>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for StreamSetCropRegionRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                region: fidl::new_empty!(fidl::encoding::Boxed<fidl_fuchsia_math_common::RectF>, 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!(
                fidl::encoding::Boxed<fidl_fuchsia_math_common::RectF>,
                D,
                &mut self.region,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for StreamSetResolutionRequest {
        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<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<StreamSetResolutionRequest, D> for &StreamSetResolutionRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamSetResolutionRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<StreamSetResolutionRequest, D>::encode(
                (<fidl_fuchsia_math_common::Size as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.coded_size,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl_fuchsia_math_common::Size, D>,
    > fidl::encoding::Encode<StreamSetResolutionRequest, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamSetResolutionRequest>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for StreamSetResolutionRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { coded_size: fidl::new_empty!(fidl_fuchsia_math_common::Size, 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!(
                fidl_fuchsia_math_common::Size,
                D,
                &mut self.coded_size,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<StreamWatchCropRegionResponse, D>
        for &StreamWatchCropRegionResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamWatchCropRegionResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<StreamWatchCropRegionResponse, D>::encode(
                (
                    <fidl::encoding::Boxed<fidl_fuchsia_math_common::RectF> as fidl::encoding::ValueTypeMarker>::borrow(&self.region),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::Boxed<fidl_fuchsia_math_common::RectF>, D>,
    > fidl::encoding::Encode<StreamWatchCropRegionResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamWatchCropRegionResponse>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for StreamWatchCropRegionResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                region: fidl::new_empty!(fidl::encoding::Boxed<fidl_fuchsia_math_common::RectF>, 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!(
                fidl::encoding::Boxed<fidl_fuchsia_math_common::RectF>,
                D,
                &mut self.region,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

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

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for StreamWatchOrientationResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { orientation: fidl::new_empty!(Orientation, 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!(Orientation, D, &mut self.orientation, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for StreamWatchResolutionResponse {
        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<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<StreamWatchResolutionResponse, D>
        for &StreamWatchResolutionResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamWatchResolutionResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<StreamWatchResolutionResponse, D>::encode(
                (<fidl_fuchsia_math_common::Size as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.coded_size,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl_fuchsia_math_common::Size, D>,
    > fidl::encoding::Encode<StreamWatchResolutionResponse, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamWatchResolutionResponse>(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)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for StreamWatchResolutionResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { coded_size: fidl::new_empty!(fidl_fuchsia_math_common::Size, 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!(
                fidl_fuchsia_math_common::Size,
                D,
                &mut self.coded_size,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

    impl Configuration2 {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.streams {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for Configuration2 {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Configuration2 {
        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<Configuration2, D>
        for &Configuration2
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Configuration2>(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::<fidl::encoding::Vector<StreamProperties2, 256>, D>(
            self.streams.as_ref().map(<fidl::encoding::Vector<StreamProperties2, 256> 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 Configuration2 {
        #[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 = <fidl::encoding::Vector<StreamProperties2, 256> 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.streams.get_or_insert_with(
                    || fidl::new_empty!(fidl::encoding::Vector<StreamProperties2, 256>, D),
                );
                fidl::decode!(fidl::encoding::Vector<StreamProperties2, 256>, 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(())
        }
    }

    impl StreamProperties2 {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.supported_resolutions {
                return 4;
            }
            if let Some(_) = self.supports_crop_region {
                return 3;
            }
            if let Some(_) = self.frame_rate {
                return 2;
            }
            if let Some(_) = self.image_format {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for StreamProperties2 {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for StreamProperties2 {
        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<StreamProperties2, D>
        for &StreamProperties2
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StreamProperties2>(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::<fidl_fuchsia_sysmem_common::ImageFormat2, D>(
            self.image_format.as_ref().map(<fidl_fuchsia_sysmem_common::ImageFormat2 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::<FrameRate, D>(
                self.frame_rate
                    .as_ref()
                    .map(<FrameRate as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > 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 = (3 - 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::<bool, D>(
                self.supports_crop_region
                    .as_ref()
                    .map(<bool as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 4 > 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 = (4 - 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::<fidl::encoding::Vector<fidl_fuchsia_math_common::Size, 256>, D>(
            self.supported_resolutions.as_ref().map(<fidl::encoding::Vector<fidl_fuchsia_math_common::Size, 256> 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 StreamProperties2 {
        #[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 = <fidl_fuchsia_sysmem_common::ImageFormat2 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.image_format.get_or_insert_with(|| {
                    fidl::new_empty!(fidl_fuchsia_sysmem_common::ImageFormat2, D)
                });
                fidl::decode!(
                    fidl_fuchsia_sysmem_common::ImageFormat2,
                    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 =
                    <FrameRate 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.frame_rate.get_or_insert_with(|| fidl::new_empty!(FrameRate, D));
                fidl::decode!(FrameRate, 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 < 3 {
                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 =
                    <bool 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.supports_crop_region.get_or_insert_with(|| fidl::new_empty!(bool, D));
                fidl::decode!(bool, 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 < 4 {
                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 = <fidl::encoding::Vector<
                    fidl_fuchsia_math_common::Size,
                    256,
                > 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.supported_resolutions.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<fidl_fuchsia_math_common::Size, 256>, D));
                fidl::decode!(fidl::encoding::Vector<fidl_fuchsia_math_common::Size, 256>, 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(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for WatchDevicesEvent {
        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<WatchDevicesEvent, D>
        for &WatchDevicesEvent
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<WatchDevicesEvent>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                WatchDevicesEvent::Existing(ref val) => {
                    fidl::encoding::encode_in_envelope::<u64, D>(
                        <u64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                WatchDevicesEvent::Added(ref val) => fidl::encoding::encode_in_envelope::<u64, D>(
                    <u64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                WatchDevicesEvent::Removed(ref val) => {
                    fidl::encoding::encode_in_envelope::<u64, D>(
                        <u64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

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

        #[inline]
        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);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <u64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let WatchDevicesEvent::Existing(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = WatchDevicesEvent::Existing(fidl::new_empty!(u64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let WatchDevicesEvent::Existing(ref mut val) = self {
                        fidl::decode!(u64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let WatchDevicesEvent::Added(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = WatchDevicesEvent::Added(fidl::new_empty!(u64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let WatchDevicesEvent::Added(ref mut val) = self {
                        fidl::decode!(u64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let WatchDevicesEvent::Removed(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = WatchDevicesEvent::Removed(fidl::new_empty!(u64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let WatchDevicesEvent::Removed(ref mut val) = self {
                        fidl::decode!(u64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            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);
            }
            Ok(())
        }
    }
}