fidl_fuchsia_ui_composition_common/

fidl_fuchsia_ui_composition_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;

/// A user-defined identifier for future presentation info. A maximum of 8
/// future presentation counts is enough for the current usage of these APIs.
pub type FuturePresentationInfos = Vec<fidl_fuchsia_scenic_scheduling::PresentationInfo>;

pub const MAX_ACQUIRE_RELEASE_FENCE_COUNT: i32 = 16;

/// A maximum of 64 child transforms is enough for the expected usage of these APIs. Callers may
/// beyond this limit using [`AddChild`].
pub const MAX_CHILD_TRANSFORMS: i32 = 64;

/// A maximum of 64 hit regions is enough for the expected usage of these APIs.
pub const MAX_HIT_REGION_COUNT: i32 = 64;

pub const MAX_PRESENT_ARGS_FENCE_COUNT: i32 = 16;

bitflags! {
    /// The possible usages for a registered buffer collection. Can be a combination of options.
    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
    pub struct RegisterBufferCollectionUsages: u16 {
        /// The specified buffer collection can be used for Flatland and GFX image creation.
        ///
        /// See [`fuchsia.ui.composition/Flatland.CreateImage`] for more.
        const DEFAULT = 1;
        /// The specified buffer collection can be used for screenshotting purposes.
        const SCREENSHOT = 2;
    }
}

impl RegisterBufferCollectionUsages {
    #[inline(always)]
    pub fn from_bits_allow_unknown(bits: u16) -> Self {
        Self::from_bits_retain(bits)
    }

    #[inline(always)]
    pub fn has_unknown_bits(&self) -> bool {
        self.get_unknown_bits() != 0
    }

    #[inline(always)]
    pub fn get_unknown_bits(&self) -> u16 {
        self.bits() & !Self::all().bits()
    }
}

/// The set of possible blending functions to choose from when determining how an image should
/// be composited on top of other images.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum BlendMode {
    /// Indicates that the source pixels replace the destination pixels. In other words,
    /// the source pixels are treated as opaque, regardless of what alpha values are set.
    Src = 1,
    /// The source pixels are drawn over the destination pixels. The final pixel color
    /// that is displayed is calculated as: C_src + (1.0 - alpha_src) * C_dst).
    SrcOver = 2,
}

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

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

#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum ChildViewStatus {
    /// The underlying Flatland instance has connected its View, called [`Present`], and the
    /// acquisition fences of the [`Present`] call have all be reached, indicating that it has some
    /// content ready to be displayed, and NOT that the child content has actually been shown on the
    /// screen (a common use case is for the parent to wait for the child content to be ready before
    /// attaching the child to the global scene graph).
    ContentHasPresented = 1,
}

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

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

/// The set of error codes returned in [`OnError`]. Everything except NO_ERROR, causes Flatland
/// channel to be closed.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum FlatlandError {
    /// Indicates that the parameters used the function calls are invalid.
    BadOperation = 1,
    /// Indicates that `additional_present_credits` field was not properly processed and the client
    /// queued more [`Present`]s than allowed.
    NoPresentsRemaining = 2,
    /// Indicates that the client has overwritten hanging gets in the protocols returned.
    BadHangingGet = 3,
}

impl FlatlandError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::BadOperation),
            2 => Some(Self::NoPresentsRemaining),
            3 => Some(Self::BadHangingGet),
            _ => None,
        }
    }

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

/// The kind of hit test interaction expected for a hit region.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum HitTestInteraction {
    /// The natural default behavior is for a hit region to interact with both regular hit testing
    /// and accessibility hit testing.
    Default,
    /// Some use cases require that a hit region to interact with regular hit testing, but not
    /// interact with accessibility hit testing. Here, "semantics" refers to accessibility's
    /// semantic tree data, which describes UI elements in a View.
    SemanticallyInvisible,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u8 },
}

/// Pattern that matches an unknown `HitTestInteraction` member.
#[macro_export]
macro_rules! HitTestInteractionUnknown {
    () => {
        _
    };
}

impl HitTestInteraction {
    #[inline]
    pub fn from_primitive(prim: u8) -> Option<Self> {
        match prim {
            0 => Some(Self::Default),
            1 => Some(Self::SemanticallyInvisible),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u8) -> Self {
        match prim {
            0 => Self::Default,
            1 => Self::SemanticallyInvisible,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u8 {
        match self {
            Self::Default => 0,
            Self::SemanticallyInvisible => 1,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// The set of possible image flip functions to choose from when determining how the image texture
/// should be displayed.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum ImageFlip {
    None = 0,
    /// Let V be the vertical axis of reflection, positioned at width/2. Then each pixel's x
    /// coordinate is reflected across V. The y coordinates remain constant. For instance:
    /// |1234|                |4321|
    /// |abcd|  would become  |dcba|
    LeftRight = 1,
    /// Let H be the horizontal axis of reflection, positioned at height/2. Then each pixel's y
    /// coordinate is reflected across H. The x coordinates remain constant. For instance:
    /// |1234|                |abcd|
    /// |abcd|  would become  |1234|
    UpDown = 2,
}

impl ImageFlip {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            0 => Some(Self::None),
            1 => Some(Self::LeftRight),
            2 => Some(Self::UpDown),
            _ => None,
        }
    }

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

/// In Flatland, the +X axis is to the right and +Y axis is down. There is no notion of a Z axis.
/// Due to the lack of a Z axis, there is no mathematical notion of "handedness" (either right or
/// left) with respect to rotation. Thus, we define a counter-clockwise rotation in the same way
/// as if a skeuomorphic clock were to be displayed on the screen, with the hands of said clock
/// moving in a CCW motion from the POV of the observer.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum Orientation {
    Ccw0Degrees = 1,
    Ccw90Degrees = 2,
    Ccw180Degrees = 3,
    Ccw270Degrees = 4,
}

impl Orientation {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::Ccw0Degrees),
            2 => Some(Self::Ccw90Degrees),
            3 => Some(Self::Ccw180Degrees),
            4 => Some(Self::Ccw270Degrees),
            _ => None,
        }
    }

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

/// ParentViewportWatchers will be informed when they are actively attached to a output display
/// (either directly, or through a chain of parent Viewports) and when they are not. Until they are
/// connected to a display, some pieces of information (such as pixel scale) may be unavailable.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum ParentViewportStatus {
    ConnectedToDisplay = 1,
    DisconnectedFromDisplay = 2,
}

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

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

/// The set of error codes returned by Allocator::RegisterBufferCollection().
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum RegisterBufferCollectionError {
    BadOperation = 1,
}

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

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

/// The possible usages for registered buffer collection.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum RegisterBufferCollectionUsage {
    /// DEFAULT means that the specified buffer collection will be used for
    /// Flatland and gfx image creation.
    ///
    /// See [`fuchsia.ui.composition/Flatland.CreateImage`] for more.
    Default = 0,
    /// SCREENSHOT means that the specified buffer collection will be used for
    /// screenshotting purposes.
    Screenshot = 1,
}

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

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

/// The rotation to be applied to the image.
///
/// If a given display is rotated, say, 270 degrees according to its
/// `display_info` config file, then applying the equal and opposite rotation,
/// [`CW_270_DEGREES`], should cancel the display rotation leading to a
/// correctly rendered screenshot.
///
/// Clients should allocate an image according to the final dimensions they
/// ultimately want to use, i.e. after rotation. These would be identical
/// to the `width` and `height` values found in the `display_info` config file.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum Rotation {
    Cw0Degrees = 0,
    Cw90Degrees = 1,
    Cw180Degrees = 2,
    Cw270Degrees = 3,
}

impl Rotation {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            0 => Some(Self::Cw0Degrees),
            1 => Some(Self::Cw90Degrees),
            2 => Some(Self::Cw180Degrees),
            3 => Some(Self::Cw270Degrees),
            _ => None,
        }
    }

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

/// The possible errors from the ScreenCapture protocol.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ScreenCaptureError {
    /// One or more required arguments are missing in the table argument.
    MissingArgs,
    /// One or more of the arguments was not valid.
    InvalidArgs,
    /// A general error occurred during the method call.
    BadOperation,
    /// Error that is returned if [`GetNextFrame`] is called when all of the VMOs in the
    /// BufferCollection have been rendered to. [`ReleaseFrame`] must be called before a
    /// successful call to GetNextFrame can be made.
    BufferFull,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u32 },
}

/// Pattern that matches an unknown `ScreenCaptureError` member.
#[macro_export]
macro_rules! ScreenCaptureErrorUnknown {
    () => {
        _
    };
}

impl ScreenCaptureError {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::MissingArgs),
            2 => Some(Self::InvalidArgs),
            3 => Some(Self::BadOperation),
            4 => Some(Self::BufferFull),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u32) -> Self {
        match prim {
            1 => Self::MissingArgs,
            2 => Self::InvalidArgs,
            3 => Self::BadOperation,
            4 => Self::BufferFull,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xffffffff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        match self {
            Self::MissingArgs => 1,
            Self::InvalidArgs => 2,
            Self::BadOperation => 3,
            Self::BufferFull => 4,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

/// The different formats of Screenshot that can be requested.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub enum ScreenshotFormat {
    /// The default format, requesting a tightly packed pixel data with 32 bit BGRA pixels.
    BgraRaw,
    /// Requests tightly packed pixel data with 32 bit RGBA pixels.
    RgbaRaw,
    /// Requests tightly packed pixel data which is compressed into PNG format.
    Png,
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u8 },
}

/// Pattern that matches an unknown `ScreenshotFormat` member.
#[macro_export]
macro_rules! ScreenshotFormatUnknown {
    () => {
        _
    };
}

impl ScreenshotFormat {
    #[inline]
    pub fn from_primitive(prim: u8) -> Option<Self> {
        match prim {
            0 => Some(Self::BgraRaw),
            2 => Some(Self::RgbaRaw),
            1 => Some(Self::Png),
            _ => None,
        }
    }

    #[inline]
    pub fn from_primitive_allow_unknown(prim: u8) -> Self {
        match prim {
            0 => Self::BgraRaw,
            2 => Self::RgbaRaw,
            1 => Self::Png,
            unknown_ordinal => Self::__SourceBreaking { unknown_ordinal },
        }
    }

    #[inline]
    pub fn unknown() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0xff }
    }

    #[inline]
    pub const fn into_primitive(self) -> u8 {
        match self {
            Self::BgraRaw => 0,
            Self::RgbaRaw => 2,
            Self::Png => 1,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { unknown_ordinal: _ } => true,
            _ => false,
        }
    }
}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ChildViewWatcherGetStatusResponse {
    pub status: ChildViewStatus,
}

impl fidl::Persistable for ChildViewWatcherGetStatusResponse {}

/// Represents a color with alpha channel.
/// Values are unorm (i.e. the valid range is [0,1]), and are in linear color
/// space. They are not gamma-corrected nor premultiplied.
#[derive(Clone, Copy, Debug, PartialEq, PartialOrd)]
pub struct ColorRgba {
    pub red: f32,
    pub green: f32,
    pub blue: f32,
    pub alpha: f32,
}

impl fidl::Persistable for ColorRgba {}

/// A user-defined identifier for a particular piece of Content. See Content creation functions
/// (e.g. [`CreateViewport`], [`CreateImage`]) for more information.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct ContentId {
    pub value: u64,
}

impl fidl::Persistable for ContentId {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandAddChildRequest {
    pub parent_transform_id: TransformId,
    pub child_transform_id: TransformId,
}

impl fidl::Persistable for FlatlandAddChildRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandCreateTransformRequest {
    pub transform_id: TransformId,
}

impl fidl::Persistable for FlatlandCreateTransformRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandDisplaySetDevicePixelRatioRequest {
    pub device_pixel_ratio: fidl_fuchsia_math::VecF,
}

impl fidl::Persistable for FlatlandDisplaySetDevicePixelRatioRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct FlatlandOnErrorRequest {
    pub error: FlatlandError,
}

impl fidl::Persistable for FlatlandOnErrorRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandOnFramePresentedRequest {
    pub frame_presented_info: fidl_fuchsia_scenic_scheduling::FramePresentedInfo,
}

impl fidl::Persistable for FlatlandOnFramePresentedRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandOnNextFrameBeginRequest {
    pub values: OnNextFrameBeginValues,
}

impl fidl::Persistable for FlatlandOnNextFrameBeginRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandReleaseFilledRectRequest {
    pub rect_id: ContentId,
}

impl fidl::Persistable for FlatlandReleaseFilledRectRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandReleaseImageRequest {
    pub image_id: ContentId,
}

impl fidl::Persistable for FlatlandReleaseImageRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandReleaseTransformRequest {
    pub transform_id: TransformId,
}

impl fidl::Persistable for FlatlandReleaseTransformRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandReleaseViewportRequest {
    pub viewport_id: ContentId,
}

impl fidl::Persistable for FlatlandReleaseViewportRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandRemoveChildRequest {
    pub parent_transform_id: TransformId,
    pub child_transform_id: TransformId,
}

impl fidl::Persistable for FlatlandRemoveChildRequest {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct FlatlandReplaceChildrenRequest {
    pub parent_transform_id: TransformId,
    pub new_child_transform_ids: Vec<TransformId>,
}

impl fidl::Persistable for FlatlandReplaceChildrenRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandSetClipBoundaryRequest {
    pub transform_id: TransformId,
    pub rect: Option<Box<fidl_fuchsia_math::Rect>>,
}

impl fidl::Persistable for FlatlandSetClipBoundaryRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandSetContentRequest {
    pub transform_id: TransformId,
    pub content_id: ContentId,
}

impl fidl::Persistable for FlatlandSetContentRequest {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct FlatlandSetDebugNameRequest {
    pub name: String,
}

impl fidl::Persistable for FlatlandSetDebugNameRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandSetHitRegionsRequest {
    pub transform_id: TransformId,
    /// Each region's [`HitRegion.region.width`] and [`HitRegion.region.height`] field must be a
    /// non-negative value.
    pub regions: Vec<HitRegion>,
}

impl fidl::Persistable for FlatlandSetHitRegionsRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct FlatlandSetImageBlendingFunctionRequest {
    pub image_id: ContentId,
    pub blend_mode: BlendMode,
}

impl fidl::Persistable for FlatlandSetImageBlendingFunctionRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandSetImageDestinationSizeRequest {
    pub image_id: ContentId,
    pub size: fidl_fuchsia_math::SizeU,
}

impl fidl::Persistable for FlatlandSetImageDestinationSizeRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct FlatlandSetImageFlipRequest {
    pub image_id: ContentId,
    pub flip: ImageFlip,
}

impl fidl::Persistable for FlatlandSetImageFlipRequest {}

#[derive(Clone, Copy, Debug, PartialEq, PartialOrd)]
pub struct FlatlandSetImageOpacityRequest {
    pub image_id: ContentId,
    pub val: f32,
}

impl fidl::Persistable for FlatlandSetImageOpacityRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandSetImageSampleRegionRequest {
    pub image_id: ContentId,
    pub rect: fidl_fuchsia_math::RectF,
}

impl fidl::Persistable for FlatlandSetImageSampleRegionRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct FlatlandSetInfiniteHitRegionRequest {
    pub transform_id: TransformId,
    pub hit_test: HitTestInteraction,
}

impl fidl::Persistable for FlatlandSetInfiniteHitRegionRequest {}

#[derive(Clone, Copy, Debug, PartialEq, PartialOrd)]
pub struct FlatlandSetOpacityRequest {
    pub transform_id: TransformId,
    pub value: f32,
}

impl fidl::Persistable for FlatlandSetOpacityRequest {}

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

impl fidl::Persistable for FlatlandSetOrientationRequest {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct FlatlandSetRootTransformRequest {
    pub transform_id: TransformId,
}

impl fidl::Persistable for FlatlandSetRootTransformRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandSetScaleRequest {
    pub transform_id: TransformId,
    pub scale: fidl_fuchsia_math::VecF,
}

impl fidl::Persistable for FlatlandSetScaleRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandSetTranslationRequest {
    pub transform_id: TransformId,
    pub translation: fidl_fuchsia_math::Vec_,
}

impl fidl::Persistable for FlatlandSetTranslationRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct FlatlandSetViewportPropertiesRequest {
    pub viewport_id: ContentId,
    pub properties: ViewportProperties,
}

impl fidl::Persistable for FlatlandSetViewportPropertiesRequest {}

/// An interactive area of a View, placed in the coordinate space of a specific Transform.
#[derive(Clone, Debug, PartialEq)]
pub struct HitRegion {
    /// The position and size of this hit region, in the coordinate space of the Transform that owns
    /// this hit region.
    pub region: fidl_fuchsia_math::RectF,
    /// The interaction behavior specified for this hit region.
    /// To specify "no interaction at all", remove this hit region from the owning Transform.
    pub hit_test: HitTestInteraction,
}

impl fidl::Persistable for HitRegion {}

#[derive(Clone, Debug, PartialEq)]
pub struct ParentViewportWatcherGetLayoutResponse {
    pub info: LayoutInfo,
}

impl fidl::Persistable for ParentViewportWatcherGetLayoutResponse {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ParentViewportWatcherGetStatusResponse {
    pub status: ParentViewportStatus,
}

impl fidl::Persistable for ParentViewportWatcherGetStatusResponse {}

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

impl fidl::Persistable for ScreenCaptureReleaseFrameRequest {}

/// A user-defined identifier for a particular transform. See [`CreateTransform`] and
/// [`ReleaseTransform`] for more information.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
#[repr(C)]
pub struct TransformId {
    pub value: u64,
}

impl fidl::Persistable for TransformId {}

/// The properties of an Image as defined by the client. These properties determine how an Image
/// uses the backing BufferCollection. See [`CreateImage`] for more information.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct ImageProperties {
    /// The size of the Image in pixels.
    pub size: Option<fidl_fuchsia_math::SizeU>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ImageProperties {}

/// The return type of [`GetLayout`]. This table contains most of the information necessary
/// for a client to decide how to layout their content in a Flatland instance. This data may be
/// provided to the client before the command that creates the View is presented, so that the
/// client may lay out content properly before their first call to [`Present`].
#[derive(Clone, Debug, Default, PartialEq)]
pub struct LayoutInfo {
    /// The layout size of a View in logical pixels, defined by the parent's call to
    /// [`SetViewportProperties`].
    ///
    /// The logical size also serves as the clip boundary of the View. Anything outside the clip
    /// boundary will not be rendered. Hence, the View's Root Transform has a useful coordinate
    /// space of (0, 0) to (logical_size.width, logical_size.height).
    ///
    /// Clients should re-layout their content when this value changes.
    pub logical_size: Option<fidl_fuchsia_math::SizeU>,
    /// The ratio of display's physical pixels to device independent pixels. Each logical pixel of a
    /// View is displayed on-screen by one or more physical pixels, as determined by this scale.
    /// Clients should not necessarily re-layout their content when this value changes, but
    /// accommodate by reallocating their Image buffers to avoid sampling artifacts. The HiDPI-aware
    /// client should allocate buffers that are sized (`logical_size`*`device_pixel_ratio`).
    pub device_pixel_ratio: Option<fidl_fuchsia_math::VecF>,
    /// The offsets between the edges and the visible rectangle of the View. The clients can assume
    /// that the boundary region between the inset and the View edge is occluded, and should adjust
    /// content layout to avoid this region. This inset is described in the view's logical
    /// coordinate system. The HiDPI-aware clients should scale this by `device_pixel_ratio`.
    pub inset: Option<fidl_fuchsia_math::Inset>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for LayoutInfo {}

/// Fields that a client needs in order to produce its next frame, returned in
/// [`OnNextFrameBegin`]. Each field is guaranteed to be  set and contain valid information.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct OnNextFrameBeginValues {
    /// The number of *additional* [`Present`] calls allowed to the client so that they
    /// can call [`Present`] further times. This is a delta in the present
    /// credit budget, not the absolute number of present credits.
    pub additional_present_credits: Option<u32>,
    /// Information about future presentation and latch times that a client may aim for
    /// precise scheduling behavior.
    pub future_presentation_infos: Option<Vec<fidl_fuchsia_scenic_scheduling::PresentationInfo>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for OnNextFrameBeginValues {}

/// The properties of a Viewport as defined by the parent. This data, along with the set of attached
/// Transforms, will be used to compute the LayoutInfo for the View of the Viewport.
/// `ViewportProperties` must have `logical_size` set at least once. This is the initial size that
/// will drive the layout of the child.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct ViewportProperties {
    /// The size of the Viewport in logical pixels. This maps directly to the logical_size field in
    /// LayoutInfo. The valid logical_size must have positive X and Y components.
    pub logical_size: Option<fidl_fuchsia_math::SizeU>,
    /// The offsets between the edges and the visible rectangle of the Viewport. This maps directly
    /// to the `inset` field in LayoutInfo. The valid inset must have all components greater than or
    /// equal to 0.
    pub inset: Option<fidl_fuchsia_math::Inset>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for ViewportProperties {}

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

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

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

    impl fidl::encoding::ValueTypeMarker for RegisterBufferCollectionUsages {
        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 RegisterBufferCollectionUsages
    {
        #[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.bits(), offset);
            Ok(())
        }
    }

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

        #[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::<u16>(offset);
            *self = Self::from_bits_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for BlendMode {
        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 BlendMode {
        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 BlendMode {
        #[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 BlendMode {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Src
        }

        #[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(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ChildViewStatus {
        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 ChildViewStatus {
        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 ChildViewStatus
    {
        #[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 ChildViewStatus {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::ContentHasPresented
        }

        #[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(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for FlatlandError {
        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 FlatlandError {
        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 FlatlandError {
        #[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 FlatlandError {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::BadOperation
        }

        #[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(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for HitTestInteraction {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u8>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u8>()
        }

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

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

    impl fidl::encoding::ValueTypeMarker for HitTestInteraction {
        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 HitTestInteraction
    {
        #[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 HitTestInteraction {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[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::<u8>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ImageFlip {
        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 ImageFlip {
        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 ImageFlip {
        #[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 ImageFlip {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::None
        }

        #[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(())
        }
    }
    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::Ccw0Degrees
        }

        #[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(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ParentViewportStatus {
        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 ParentViewportStatus {
        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 ParentViewportStatus
    {
        #[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 ParentViewportStatus {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::ConnectedToDisplay
        }

        #[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(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RegisterBufferCollectionError {
        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 RegisterBufferCollectionError {
        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 RegisterBufferCollectionError
    {
        #[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 RegisterBufferCollectionError
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::BadOperation
        }

        #[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(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for RegisterBufferCollectionUsage {
        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 RegisterBufferCollectionUsage {
        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 RegisterBufferCollectionUsage
    {
        #[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 RegisterBufferCollectionUsage
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Default
        }

        #[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(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for Rotation {
        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 Rotation {
        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 Rotation {
        #[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 Rotation {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Cw0Degrees
        }

        #[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(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ScreenCaptureError {
        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 {
            false
        }

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

    impl fidl::encoding::ValueTypeMarker for ScreenCaptureError {
        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 ScreenCaptureError
    {
        #[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 ScreenCaptureError {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[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_allow_unknown(prim);
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for ScreenshotFormat {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u8>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u8>()
        }

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

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

    impl fidl::encoding::ValueTypeMarker for ScreenshotFormat {
        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 ScreenshotFormat
    {
        #[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 ScreenshotFormat {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::unknown()
        }

        #[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::<u8>(offset);

            *self = Self::from_primitive_allow_unknown(prim);
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ChildViewWatcherGetStatusResponse {
        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<ChildViewWatcherGetStatusResponse, D>
        for &ChildViewWatcherGetStatusResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ChildViewWatcherGetStatusResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ChildViewWatcherGetStatusResponse, D>::encode(
                (<ChildViewStatus as fidl::encoding::ValueTypeMarker>::borrow(&self.status),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<ChildViewStatus, D>>
        fidl::encoding::Encode<ChildViewWatcherGetStatusResponse, 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::<ChildViewWatcherGetStatusResponse>(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 ChildViewWatcherGetStatusResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(ChildViewStatus, 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!(ChildViewStatus, D, &mut self.status, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ColorRgba, D>
        for &ColorRgba
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ColorRgba>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ColorRgba, D>::encode(
                (
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(&self.red),
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(&self.green),
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(&self.blue),
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(&self.alpha),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<f32, D>,
            T1: fidl::encoding::Encode<f32, D>,
            T2: fidl::encoding::Encode<f32, D>,
            T3: fidl::encoding::Encode<f32, D>,
        > fidl::encoding::Encode<ColorRgba, D> for (T0, T1, T2, T3)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ColorRgba>(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)?;
            self.2.encode(encoder, offset + 8, depth)?;
            self.3.encode(encoder, offset + 12, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ColorRgba {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                red: fidl::new_empty!(f32, D),
                green: fidl::new_empty!(f32, D),
                blue: fidl::new_empty!(f32, D),
                alpha: fidl::new_empty!(f32, 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!(f32, D, &mut self.red, decoder, offset + 0, _depth)?;
            fidl::decode!(f32, D, &mut self.green, decoder, offset + 4, _depth)?;
            fidl::decode!(f32, D, &mut self.blue, decoder, offset + 8, _depth)?;
            fidl::decode!(f32, D, &mut self.alpha, decoder, offset + 12, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ContentId {
        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
        }
        #[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<ContentId, D>
        for &ContentId
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ContentId>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut ContentId).write_unaligned((self as *const ContentId).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<u64, D>>
        fidl::encoding::Encode<ContentId, 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::<ContentId>(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 ContentId {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { value: fidl::new_empty!(u64, 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 FlatlandAddChildRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlatlandAddChildRequest {
        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
        }
        #[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<FlatlandAddChildRequest, D> for &FlatlandAddChildRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandAddChildRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandAddChildRequest)
                    .write_unaligned((self as *const FlatlandAddChildRequest).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<TransformId, D>,
            T1: fidl::encoding::Encode<TransformId, D>,
        > fidl::encoding::Encode<FlatlandAddChildRequest, 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::<FlatlandAddChildRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandAddChildRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                parent_transform_id: fidl::new_empty!(TransformId, D),
                child_transform_id: fidl::new_empty!(TransformId, 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, 16);
            }
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandCreateTransformRequest {
        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
        }
        #[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<FlatlandCreateTransformRequest, D>
        for &FlatlandCreateTransformRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandCreateTransformRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandCreateTransformRequest)
                    .write_unaligned((self as *const FlatlandCreateTransformRequest).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<TransformId, D>>
        fidl::encoding::Encode<FlatlandCreateTransformRequest, 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::<FlatlandCreateTransformRequest>(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 FlatlandCreateTransformRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { transform_id: fidl::new_empty!(TransformId, 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 FlatlandDisplaySetDevicePixelRatioRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlatlandDisplaySetDevicePixelRatioRequest {
        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<FlatlandDisplaySetDevicePixelRatioRequest, D>
        for &FlatlandDisplaySetDevicePixelRatioRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandDisplaySetDevicePixelRatioRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandDisplaySetDevicePixelRatioRequest, D>::encode(
                (<fidl_fuchsia_math::VecF as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.device_pixel_ratio,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl_fuchsia_math::VecF, D>,
        > fidl::encoding::Encode<FlatlandDisplaySetDevicePixelRatioRequest, 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::<FlatlandDisplaySetDevicePixelRatioRequest>(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 FlatlandDisplaySetDevicePixelRatioRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { device_pixel_ratio: fidl::new_empty!(fidl_fuchsia_math::VecF, 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::VecF,
                D,
                &mut self.device_pixel_ratio,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandOnErrorRequest {
        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<FlatlandOnErrorRequest, D> for &FlatlandOnErrorRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandOnErrorRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandOnErrorRequest, D>::encode(
                (<FlatlandError as fidl::encoding::ValueTypeMarker>::borrow(&self.error),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<FlatlandError, D>>
        fidl::encoding::Encode<FlatlandOnErrorRequest, 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::<FlatlandOnErrorRequest>(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 FlatlandOnErrorRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { error: fidl::new_empty!(FlatlandError, 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!(FlatlandError, D, &mut self.error, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            32
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<FlatlandOnFramePresentedRequest, D>
        for &FlatlandOnFramePresentedRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandOnFramePresentedRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandOnFramePresentedRequest, D>::encode(
                (
                    <fidl_fuchsia_scenic_scheduling::FramePresentedInfo as fidl::encoding::ValueTypeMarker>::borrow(&self.frame_presented_info),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl_fuchsia_scenic_scheduling::FramePresentedInfo, D>,
        > fidl::encoding::Encode<FlatlandOnFramePresentedRequest, 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::<FlatlandOnFramePresentedRequest>(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 FlatlandOnFramePresentedRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                frame_presented_info: fidl::new_empty!(
                    fidl_fuchsia_scenic_scheduling::FramePresentedInfo,
                    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_scenic_scheduling::FramePresentedInfo,
                D,
                &mut self.frame_presented_info,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandOnNextFrameBeginRequest {
        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<FlatlandOnNextFrameBeginRequest, D>
        for &FlatlandOnNextFrameBeginRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandOnNextFrameBeginRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandOnNextFrameBeginRequest, D>::encode(
                (<OnNextFrameBeginValues as fidl::encoding::ValueTypeMarker>::borrow(&self.values),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<OnNextFrameBeginValues, D>,
        > fidl::encoding::Encode<FlatlandOnNextFrameBeginRequest, 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::<FlatlandOnNextFrameBeginRequest>(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 FlatlandOnNextFrameBeginRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { values: fidl::new_empty!(OnNextFrameBeginValues, 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!(
                OnNextFrameBeginValues,
                D,
                &mut self.values,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandReleaseFilledRectRequest {
        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
        }
        #[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<FlatlandReleaseFilledRectRequest, D>
        for &FlatlandReleaseFilledRectRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandReleaseFilledRectRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandReleaseFilledRectRequest)
                    .write_unaligned((self as *const FlatlandReleaseFilledRectRequest).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<ContentId, D>>
        fidl::encoding::Encode<FlatlandReleaseFilledRectRequest, 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::<FlatlandReleaseFilledRectRequest>(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 FlatlandReleaseFilledRectRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { rect_id: fidl::new_empty!(ContentId, 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 FlatlandReleaseImageRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlatlandReleaseImageRequest {
        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
        }
        #[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<FlatlandReleaseImageRequest, D> for &FlatlandReleaseImageRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandReleaseImageRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandReleaseImageRequest)
                    .write_unaligned((self as *const FlatlandReleaseImageRequest).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<ContentId, D>>
        fidl::encoding::Encode<FlatlandReleaseImageRequest, 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::<FlatlandReleaseImageRequest>(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 FlatlandReleaseImageRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { image_id: fidl::new_empty!(ContentId, 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 FlatlandReleaseTransformRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlatlandReleaseTransformRequest {
        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
        }
        #[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<FlatlandReleaseTransformRequest, D>
        for &FlatlandReleaseTransformRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandReleaseTransformRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandReleaseTransformRequest)
                    .write_unaligned((self as *const FlatlandReleaseTransformRequest).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<TransformId, D>>
        fidl::encoding::Encode<FlatlandReleaseTransformRequest, 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::<FlatlandReleaseTransformRequest>(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 FlatlandReleaseTransformRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { transform_id: fidl::new_empty!(TransformId, 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 FlatlandReleaseViewportRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlatlandReleaseViewportRequest {
        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
        }
        #[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<FlatlandReleaseViewportRequest, D>
        for &FlatlandReleaseViewportRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandReleaseViewportRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandReleaseViewportRequest)
                    .write_unaligned((self as *const FlatlandReleaseViewportRequest).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<ContentId, D>>
        fidl::encoding::Encode<FlatlandReleaseViewportRequest, 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::<FlatlandReleaseViewportRequest>(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 FlatlandReleaseViewportRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { viewport_id: fidl::new_empty!(ContentId, 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 FlatlandRemoveChildRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlatlandRemoveChildRequest {
        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
        }
        #[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<FlatlandRemoveChildRequest, D> for &FlatlandRemoveChildRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandRemoveChildRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandRemoveChildRequest)
                    .write_unaligned((self as *const FlatlandRemoveChildRequest).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<TransformId, D>,
            T1: fidl::encoding::Encode<TransformId, D>,
        > fidl::encoding::Encode<FlatlandRemoveChildRequest, 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::<FlatlandRemoveChildRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandRemoveChildRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                parent_transform_id: fidl::new_empty!(TransformId, D),
                child_transform_id: fidl::new_empty!(TransformId, 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, 16);
            }
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<FlatlandReplaceChildrenRequest, D>
        for &FlatlandReplaceChildrenRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandReplaceChildrenRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandReplaceChildrenRequest, D>::encode(
                (
                    <TransformId as fidl::encoding::ValueTypeMarker>::borrow(&self.parent_transform_id),
                    <fidl::encoding::Vector<TransformId, 64> as fidl::encoding::ValueTypeMarker>::borrow(&self.new_child_transform_ids),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<TransformId, D>,
            T1: fidl::encoding::Encode<fidl::encoding::Vector<TransformId, 64>, D>,
        > fidl::encoding::Encode<FlatlandReplaceChildrenRequest, 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::<FlatlandReplaceChildrenRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandReplaceChildrenRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                parent_transform_id: fidl::new_empty!(TransformId, D),
                new_child_transform_ids: fidl::new_empty!(fidl::encoding::Vector<TransformId, 64>, 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!(
                TransformId,
                D,
                &mut self.parent_transform_id,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(fidl::encoding::Vector<TransformId, 64>, D, &mut self.new_child_transform_ids, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetClipBoundaryRequest {
        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<FlatlandSetClipBoundaryRequest, D>
        for &FlatlandSetClipBoundaryRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetClipBoundaryRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetClipBoundaryRequest, D>::encode(
                (
                    <TransformId as fidl::encoding::ValueTypeMarker>::borrow(&self.transform_id),
                    <fidl::encoding::Boxed<fidl_fuchsia_math::Rect> as fidl::encoding::ValueTypeMarker>::borrow(&self.rect),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<TransformId, D>,
            T1: fidl::encoding::Encode<fidl::encoding::Boxed<fidl_fuchsia_math::Rect>, D>,
        > fidl::encoding::Encode<FlatlandSetClipBoundaryRequest, 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::<FlatlandSetClipBoundaryRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetClipBoundaryRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                transform_id: fidl::new_empty!(TransformId, D),
                rect: fidl::new_empty!(fidl::encoding::Boxed<fidl_fuchsia_math::Rect>, 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!(TransformId, D, &mut self.transform_id, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl::encoding::Boxed<fidl_fuchsia_math::Rect>,
                D,
                &mut self.rect,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetContentRequest {
        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
        }
        #[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<FlatlandSetContentRequest, D> for &FlatlandSetContentRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetContentRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandSetContentRequest)
                    .write_unaligned((self as *const FlatlandSetContentRequest).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<TransformId, D>,
            T1: fidl::encoding::Encode<ContentId, D>,
        > fidl::encoding::Encode<FlatlandSetContentRequest, 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::<FlatlandSetContentRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetContentRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                transform_id: fidl::new_empty!(TransformId, D),
                content_id: fidl::new_empty!(ContentId, 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, 16);
            }
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetDebugNameRequest {
        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<FlatlandSetDebugNameRequest, D> for &FlatlandSetDebugNameRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetDebugNameRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetDebugNameRequest, D>::encode(
                (<fidl::encoding::BoundedString<64> as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.name,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl::encoding::BoundedString<64>, D>,
        > fidl::encoding::Encode<FlatlandSetDebugNameRequest, 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::<FlatlandSetDebugNameRequest>(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 FlatlandSetDebugNameRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { name: fidl::new_empty!(fidl::encoding::BoundedString<64>, 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::BoundedString<64>,
                D,
                &mut self.name,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<FlatlandSetHitRegionsRequest, D> for &FlatlandSetHitRegionsRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetHitRegionsRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetHitRegionsRequest, D>::encode(
                (
                    <TransformId as fidl::encoding::ValueTypeMarker>::borrow(&self.transform_id),
                    <fidl::encoding::Vector<HitRegion, 64> as fidl::encoding::ValueTypeMarker>::borrow(&self.regions),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<TransformId, D>,
            T1: fidl::encoding::Encode<fidl::encoding::Vector<HitRegion, 64>, D>,
        > fidl::encoding::Encode<FlatlandSetHitRegionsRequest, 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::<FlatlandSetHitRegionsRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetHitRegionsRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                transform_id: fidl::new_empty!(TransformId, D),
                regions: fidl::new_empty!(fidl::encoding::Vector<HitRegion, 64>, 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!(TransformId, D, &mut self.transform_id, decoder, offset + 0, _depth)?;
            fidl::decode!(fidl::encoding::Vector<HitRegion, 64>, D, &mut self.regions, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetImageBlendingFunctionRequest {
        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<FlatlandSetImageBlendingFunctionRequest, D>
        for &FlatlandSetImageBlendingFunctionRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetImageBlendingFunctionRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetImageBlendingFunctionRequest, D>::encode(
                (
                    <ContentId as fidl::encoding::ValueTypeMarker>::borrow(&self.image_id),
                    <BlendMode as fidl::encoding::ValueTypeMarker>::borrow(&self.blend_mode),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<ContentId, D>,
            T1: fidl::encoding::Encode<BlendMode, D>,
        > fidl::encoding::Encode<FlatlandSetImageBlendingFunctionRequest, 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::<FlatlandSetImageBlendingFunctionRequest>(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(8);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetImageBlendingFunctionRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                image_id: fidl::new_empty!(ContentId, D),
                blend_mode: fidl::new_empty!(BlendMode, 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(8) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 8 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(ContentId, D, &mut self.image_id, decoder, offset + 0, _depth)?;
            fidl::decode!(BlendMode, D, &mut self.blend_mode, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetImageDestinationSizeRequest {
        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<FlatlandSetImageDestinationSizeRequest, D>
        for &FlatlandSetImageDestinationSizeRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetImageDestinationSizeRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetImageDestinationSizeRequest, D>::encode(
                (
                    <ContentId as fidl::encoding::ValueTypeMarker>::borrow(&self.image_id),
                    <fidl_fuchsia_math::SizeU as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.size,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<ContentId, D>,
            T1: fidl::encoding::Encode<fidl_fuchsia_math::SizeU, D>,
        > fidl::encoding::Encode<FlatlandSetImageDestinationSizeRequest, 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::<FlatlandSetImageDestinationSizeRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetImageDestinationSizeRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                image_id: fidl::new_empty!(ContentId, D),
                size: fidl::new_empty!(fidl_fuchsia_math::SizeU, 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!(ContentId, D, &mut self.image_id, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl_fuchsia_math::SizeU,
                D,
                &mut self.size,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetImageFlipRequest {
        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<FlatlandSetImageFlipRequest, D> for &FlatlandSetImageFlipRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetImageFlipRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetImageFlipRequest, D>::encode(
                (
                    <ContentId as fidl::encoding::ValueTypeMarker>::borrow(&self.image_id),
                    <ImageFlip as fidl::encoding::ValueTypeMarker>::borrow(&self.flip),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<ContentId, D>,
            T1: fidl::encoding::Encode<ImageFlip, D>,
        > fidl::encoding::Encode<FlatlandSetImageFlipRequest, 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::<FlatlandSetImageFlipRequest>(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(8);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetImageFlipRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { image_id: fidl::new_empty!(ContentId, D), flip: fidl::new_empty!(ImageFlip, 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(8) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 8 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(ContentId, D, &mut self.image_id, decoder, offset + 0, _depth)?;
            fidl::decode!(ImageFlip, D, &mut self.flip, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetImageOpacityRequest {
        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<FlatlandSetImageOpacityRequest, D>
        for &FlatlandSetImageOpacityRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetImageOpacityRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetImageOpacityRequest, D>::encode(
                (
                    <ContentId as fidl::encoding::ValueTypeMarker>::borrow(&self.image_id),
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(&self.val),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<ContentId, D>,
            T1: fidl::encoding::Encode<f32, D>,
        > fidl::encoding::Encode<FlatlandSetImageOpacityRequest, 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::<FlatlandSetImageOpacityRequest>(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(8);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetImageOpacityRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { image_id: fidl::new_empty!(ContentId, D), val: fidl::new_empty!(f32, 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(8) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 8 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(ContentId, D, &mut self.image_id, decoder, offset + 0, _depth)?;
            fidl::decode!(f32, D, &mut self.val, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<FlatlandSetImageSampleRegionRequest, D>
        for &FlatlandSetImageSampleRegionRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetImageSampleRegionRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetImageSampleRegionRequest, D>::encode(
                (
                    <ContentId as fidl::encoding::ValueTypeMarker>::borrow(&self.image_id),
                    <fidl_fuchsia_math::RectF as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.rect,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<ContentId, D>,
            T1: fidl::encoding::Encode<fidl_fuchsia_math::RectF, D>,
        > fidl::encoding::Encode<FlatlandSetImageSampleRegionRequest, 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::<FlatlandSetImageSampleRegionRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetImageSampleRegionRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                image_id: fidl::new_empty!(ContentId, D),
                rect: fidl::new_empty!(fidl_fuchsia_math::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!(ContentId, D, &mut self.image_id, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl_fuchsia_math::RectF,
                D,
                &mut self.rect,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetInfiniteHitRegionRequest {
        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<FlatlandSetInfiniteHitRegionRequest, D>
        for &FlatlandSetInfiniteHitRegionRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetInfiniteHitRegionRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetInfiniteHitRegionRequest, D>::encode(
                (
                    <TransformId as fidl::encoding::ValueTypeMarker>::borrow(&self.transform_id),
                    <HitTestInteraction as fidl::encoding::ValueTypeMarker>::borrow(&self.hit_test),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<TransformId, D>,
            T1: fidl::encoding::Encode<HitTestInteraction, D>,
        > fidl::encoding::Encode<FlatlandSetInfiniteHitRegionRequest, 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::<FlatlandSetInfiniteHitRegionRequest>(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(8);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetInfiniteHitRegionRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                transform_id: fidl::new_empty!(TransformId, D),
                hit_test: fidl::new_empty!(HitTestInteraction, 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(8) };
            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 + 8 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(TransformId, D, &mut self.transform_id, decoder, offset + 0, _depth)?;
            fidl::decode!(HitTestInteraction, D, &mut self.hit_test, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetOpacityRequest {
        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<FlatlandSetOpacityRequest, D> for &FlatlandSetOpacityRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetOpacityRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetOpacityRequest, D>::encode(
                (
                    <TransformId as fidl::encoding::ValueTypeMarker>::borrow(&self.transform_id),
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(&self.value),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<TransformId, D>,
            T1: fidl::encoding::Encode<f32, D>,
        > fidl::encoding::Encode<FlatlandSetOpacityRequest, 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::<FlatlandSetOpacityRequest>(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(8);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetOpacityRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { transform_id: fidl::new_empty!(TransformId, D), value: fidl::new_empty!(f32, 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(8) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 8 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(TransformId, D, &mut self.transform_id, decoder, offset + 0, _depth)?;
            fidl::decode!(f32, D, &mut self.value, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetOrientationRequest {
        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<FlatlandSetOrientationRequest, D>
        for &FlatlandSetOrientationRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetOrientationRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetOrientationRequest, D>::encode(
                (
                    <TransformId as fidl::encoding::ValueTypeMarker>::borrow(&self.transform_id),
                    <Orientation as fidl::encoding::ValueTypeMarker>::borrow(&self.orientation),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<TransformId, D>,
            T1: fidl::encoding::Encode<Orientation, D>,
        > fidl::encoding::Encode<FlatlandSetOrientationRequest, 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::<FlatlandSetOrientationRequest>(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(8);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetOrientationRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                transform_id: fidl::new_empty!(TransformId, D),
                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.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(8) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 8 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(TransformId, D, &mut self.transform_id, decoder, offset + 0, _depth)?;
            fidl::decode!(Orientation, D, &mut self.orientation, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetRootTransformRequest {
        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
        }
        #[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<FlatlandSetRootTransformRequest, D>
        for &FlatlandSetRootTransformRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetRootTransformRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut FlatlandSetRootTransformRequest)
                    .write_unaligned((self as *const FlatlandSetRootTransformRequest).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<TransformId, D>>
        fidl::encoding::Encode<FlatlandSetRootTransformRequest, 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::<FlatlandSetRootTransformRequest>(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 FlatlandSetRootTransformRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { transform_id: fidl::new_empty!(TransformId, 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 FlatlandSetScaleRequest {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetScaleRequest {
        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<FlatlandSetScaleRequest, D> for &FlatlandSetScaleRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetScaleRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetScaleRequest, D>::encode(
                (
                    <TransformId as fidl::encoding::ValueTypeMarker>::borrow(&self.transform_id),
                    <fidl_fuchsia_math::VecF as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.scale,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<TransformId, D>,
            T1: fidl::encoding::Encode<fidl_fuchsia_math::VecF, D>,
        > fidl::encoding::Encode<FlatlandSetScaleRequest, 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::<FlatlandSetScaleRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetScaleRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                transform_id: fidl::new_empty!(TransformId, D),
                scale: fidl::new_empty!(fidl_fuchsia_math::VecF, 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!(TransformId, D, &mut self.transform_id, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl_fuchsia_math::VecF,
                D,
                &mut self.scale,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FlatlandSetTranslationRequest {
        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<FlatlandSetTranslationRequest, D>
        for &FlatlandSetTranslationRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetTranslationRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetTranslationRequest, D>::encode(
                (
                    <TransformId as fidl::encoding::ValueTypeMarker>::borrow(&self.transform_id),
                    <fidl_fuchsia_math::Vec_ as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.translation,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<TransformId, D>,
            T1: fidl::encoding::Encode<fidl_fuchsia_math::Vec_, D>,
        > fidl::encoding::Encode<FlatlandSetTranslationRequest, 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::<FlatlandSetTranslationRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetTranslationRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                transform_id: fidl::new_empty!(TransformId, D),
                translation: fidl::new_empty!(fidl_fuchsia_math::Vec_, 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!(TransformId, D, &mut self.transform_id, decoder, offset + 0, _depth)?;
            fidl::decode!(
                fidl_fuchsia_math::Vec_,
                D,
                &mut self.translation,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<FlatlandSetViewportPropertiesRequest, D>
        for &FlatlandSetViewportPropertiesRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlatlandSetViewportPropertiesRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FlatlandSetViewportPropertiesRequest, D>::encode(
                (
                    <ContentId as fidl::encoding::ValueTypeMarker>::borrow(&self.viewport_id),
                    <ViewportProperties as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.properties,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<ContentId, D>,
            T1: fidl::encoding::Encode<ViewportProperties, D>,
        > fidl::encoding::Encode<FlatlandSetViewportPropertiesRequest, 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::<FlatlandSetViewportPropertiesRequest>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for FlatlandSetViewportPropertiesRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                viewport_id: fidl::new_empty!(ContentId, D),
                properties: fidl::new_empty!(ViewportProperties, 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!(ContentId, D, &mut self.viewport_id, decoder, offset + 0, _depth)?;
            fidl::decode!(
                ViewportProperties,
                D,
                &mut self.properties,
                decoder,
                offset + 8,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            20
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<HitRegion, D>
        for &HitRegion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<HitRegion>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<HitRegion, D>::encode(
                (
                    <fidl_fuchsia_math::RectF as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.region,
                    ),
                    <HitTestInteraction as fidl::encoding::ValueTypeMarker>::borrow(&self.hit_test),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl_fuchsia_math::RectF, D>,
            T1: fidl::encoding::Encode<HitTestInteraction, D>,
        > fidl::encoding::Encode<HitRegion, 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::<HitRegion>(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(16);
                (ptr as *mut u32).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for HitRegion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                region: fidl::new_empty!(fidl_fuchsia_math::RectF, D),
                hit_test: fidl::new_empty!(HitTestInteraction, 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(16) };
            let padval = unsafe { (ptr as *const u32).read_unaligned() };
            let mask = 0xffffff00u32;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 16 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(
                fidl_fuchsia_math::RectF,
                D,
                &mut self.region,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(HitTestInteraction, D, &mut self.hit_test, decoder, offset + 16, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ParentViewportWatcherGetLayoutResponse {
        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<ParentViewportWatcherGetLayoutResponse, D>
        for &ParentViewportWatcherGetLayoutResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ParentViewportWatcherGetLayoutResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ParentViewportWatcherGetLayoutResponse, D>::encode(
                (<LayoutInfo as fidl::encoding::ValueTypeMarker>::borrow(&self.info),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<LayoutInfo, D>>
        fidl::encoding::Encode<ParentViewportWatcherGetLayoutResponse, 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::<ParentViewportWatcherGetLayoutResponse>(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 ParentViewportWatcherGetLayoutResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { info: fidl::new_empty!(LayoutInfo, 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!(LayoutInfo, D, &mut self.info, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ParentViewportWatcherGetStatusResponse {
        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<ParentViewportWatcherGetStatusResponse, D>
        for &ParentViewportWatcherGetStatusResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ParentViewportWatcherGetStatusResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ParentViewportWatcherGetStatusResponse, D>::encode(
                (<ParentViewportStatus as fidl::encoding::ValueTypeMarker>::borrow(&self.status),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<ParentViewportStatus, D>,
        > fidl::encoding::Encode<ParentViewportWatcherGetStatusResponse, 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::<ParentViewportWatcherGetStatusResponse>(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 ParentViewportWatcherGetStatusResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { status: fidl::new_empty!(ParentViewportStatus, 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!(ParentViewportStatus, D, &mut self.status, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ScreenCaptureReleaseFrameRequest {
        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<ScreenCaptureReleaseFrameRequest, D>
        for &ScreenCaptureReleaseFrameRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ScreenCaptureReleaseFrameRequest>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut ScreenCaptureReleaseFrameRequest)
                    .write_unaligned((self as *const ScreenCaptureReleaseFrameRequest).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<ScreenCaptureReleaseFrameRequest, 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::<ScreenCaptureReleaseFrameRequest>(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 ScreenCaptureReleaseFrameRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { buffer_id: 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 TransformId {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for TransformId {
        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
        }
        #[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<TransformId, D>
        for &TransformId
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TransformId>(offset);
            unsafe {
                // Copy the object into the buffer.
                let buf_ptr = encoder.buf.as_mut_ptr().add(offset);
                (buf_ptr as *mut TransformId).write_unaligned((self as *const TransformId).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<u64, D>>
        fidl::encoding::Encode<TransformId, 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::<TransformId>(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 TransformId {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { value: fidl::new_empty!(u64, 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 ImageProperties {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.size {
                return 1;
            }
            0
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ImageProperties {
        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<ImageProperties, D>
        for &ImageProperties
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ImageProperties>(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_math::SizeU, D>(
                self.size
                    .as_ref()
                    .map(<fidl_fuchsia_math::SizeU 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 ImageProperties {
        #[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_math::SizeU 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.size.get_or_insert_with(|| fidl::new_empty!(fidl_fuchsia_math::SizeU, D));
                fidl::decode!(
                    fidl_fuchsia_math::SizeU,
                    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 LayoutInfo {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.inset {
                return 4;
            }
            if let Some(_) = self.device_pixel_ratio {
                return 3;
            }
            if let Some(_) = self.logical_size {
                return 1;
            }
            0
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for LayoutInfo {
        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<LayoutInfo, D>
        for &LayoutInfo
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<LayoutInfo>(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_math::SizeU, D>(
                self.logical_size
                    .as_ref()
                    .map(<fidl_fuchsia_math::SizeU 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::<fidl_fuchsia_math::VecF, D>(
                self.device_pixel_ratio
                    .as_ref()
                    .map(<fidl_fuchsia_math::VecF 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_fuchsia_math::Inset, D>(
                self.inset
                    .as_ref()
                    .map(<fidl_fuchsia_math::Inset 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 LayoutInfo {
        #[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_math::SizeU 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
                    .logical_size
                    .get_or_insert_with(|| fidl::new_empty!(fidl_fuchsia_math::SizeU, D));
                fidl::decode!(
                    fidl_fuchsia_math::SizeU,
                    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 =
                    <fidl_fuchsia_math::VecF 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
                    .device_pixel_ratio
                    .get_or_insert_with(|| fidl::new_empty!(fidl_fuchsia_math::VecF, D));
                fidl::decode!(
                    fidl_fuchsia_math::VecF,
                    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_fuchsia_math::Inset 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.inset.get_or_insert_with(|| fidl::new_empty!(fidl_fuchsia_math::Inset, D));
                fidl::decode!(
                    fidl_fuchsia_math::Inset,
                    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 OnNextFrameBeginValues {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.future_presentation_infos {
                return 2;
            }
            if let Some(_) = self.additional_present_credits {
                return 1;
            }
            0
        }
    }

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

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

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

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

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

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

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

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

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<fidl_fuchsia_scenic_scheduling::PresentationInfo, 8>, D>(
            self.future_presentation_infos.as_ref().map(<fidl::encoding::Vector<fidl_fuchsia_scenic_scheduling::PresentationInfo, 8> 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 OnNextFrameBeginValues
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

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

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

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

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

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

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<
                    fidl_fuchsia_scenic_scheduling::PresentationInfo,
                    8,
                > 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.future_presentation_infos.get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<fidl_fuchsia_scenic_scheduling::PresentationInfo, 8>, D));
                fidl::decode!(fidl::encoding::Vector<fidl_fuchsia_scenic_scheduling::PresentationInfo, 8>, 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 ViewportProperties {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.inset {
                return 2;
            }
            if let Some(_) = self.logical_size {
                return 1;
            }
            0
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ViewportProperties {
        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<ViewportProperties, D>
        for &ViewportProperties
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ViewportProperties>(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_math::SizeU, D>(
                self.logical_size
                    .as_ref()
                    .map(<fidl_fuchsia_math::SizeU 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::<fidl_fuchsia_math::Inset, D>(
                self.inset
                    .as_ref()
                    .map(<fidl_fuchsia_math::Inset 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 ViewportProperties {
        #[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_math::SizeU 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
                    .logical_size
                    .get_or_insert_with(|| fidl::new_empty!(fidl_fuchsia_math::SizeU, D));
                fidl::decode!(
                    fidl_fuchsia_math::SizeU,
                    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 =
                    <fidl_fuchsia_math::Inset 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.inset.get_or_insert_with(|| fidl::new_empty!(fidl_fuchsia_math::Inset, D));
                fidl::decode!(
                    fidl_fuchsia_math::Inset,
                    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(())
        }
    }
}