mtl-rs 0.2.1

use objc2::{
    extern_class, extern_conformance, extern_methods,
    rc::{Allocated, Retained},
    runtime::{NSObject, ProtocolObject},
};
use objc2_foundation::{CopyingHelper, NSCopying, NSObjectProtocol};

use super::{MTLLoadAction, MTLStoreAction, MTLStoreActionOptions};
use crate::MTLTexture;

extern_class!(
    /// Common attachment descriptor fields.
    #[unsafe(super(NSObject))]
    #[derive(Debug, PartialEq, Eq, Hash)]
    pub struct MTLRenderPassAttachmentDescriptor;
);

extern_conformance!(
    unsafe impl NSCopying for MTLRenderPassAttachmentDescriptor {}
);

unsafe impl CopyingHelper for MTLRenderPassAttachmentDescriptor {
    type Result = Self;
}

extern_conformance!(
    unsafe impl NSObjectProtocol for MTLRenderPassAttachmentDescriptor {}
);

impl MTLRenderPassAttachmentDescriptor {
    extern_methods!(
        /// The texture object for this attachment.
        #[unsafe(method(texture))]
        #[unsafe(method_family = none)]
        pub fn texture(&self) -> Option<Retained<ProtocolObject<dyn MTLTexture>>>;

        /// Setter for [`texture`][Self::texture].
        #[unsafe(method(setTexture:))]
        #[unsafe(method_family = none)]
        pub fn set_texture(
            &self,
            texture: Option<&ProtocolObject<dyn MTLTexture>>,
        );

        /// The mipmap level of the texture to be used for rendering. Default is zero.
        #[unsafe(method(level))]
        #[unsafe(method_family = none)]
        pub fn level(&self) -> usize;

        /// Setter for [`level`][Self::level].
        #[unsafe(method(setLevel:))]
        #[unsafe(method_family = none)]
        pub fn set_level(
            &self,
            level: usize,
        );

        /// The slice of the texture to be used for rendering. Default is zero.
        #[unsafe(method(slice))]
        #[unsafe(method_family = none)]
        pub fn slice(&self) -> usize;

        /// Setter for [`slice`][Self::slice].
        #[unsafe(method(setSlice:))]
        #[unsafe(method_family = none)]
        pub fn set_slice(
            &self,
            slice: usize,
        );

        /// The depth plane of the texture to be used for rendering. Default is zero.
        #[unsafe(method(depthPlane))]
        #[unsafe(method_family = none)]
        pub fn depth_plane(&self) -> usize;

        /// Setter for [`depth_plane`][Self::depth_plane].
        #[unsafe(method(setDepthPlane:))]
        #[unsafe(method_family = none)]
        pub fn set_depth_plane(
            &self,
            depth_plane: usize,
        );

        /// The texture used for multisample resolve operations.
        #[unsafe(method(resolveTexture))]
        #[unsafe(method_family = none)]
        pub fn resolve_texture(&self) -> Option<Retained<ProtocolObject<dyn MTLTexture>>>;

        /// Setter for [`resolve_texture`][Self::resolve_texture].
        #[unsafe(method(setResolveTexture:))]
        #[unsafe(method_family = none)]
        pub fn set_resolve_texture(
            &self,
            texture: Option<&ProtocolObject<dyn MTLTexture>>,
        );

        /// The mipmap level of the resolve texture. Defaults to zero.
        #[unsafe(method(resolveLevel))]
        #[unsafe(method_family = none)]
        pub fn resolve_level(&self) -> usize;

        /// Setter for [`resolve_level`][Self::resolve_level].
        #[unsafe(method(setResolveLevel:))]
        #[unsafe(method_family = none)]
        pub fn set_resolve_level(
            &self,
            level: usize,
        );

        /// The slice of the resolve texture. Defaults to zero.
        #[unsafe(method(resolveSlice))]
        #[unsafe(method_family = none)]
        pub fn resolve_slice(&self) -> usize;

        /// Setter for [`resolve_slice`][Self::resolve_slice].
        #[unsafe(method(setResolveSlice:))]
        #[unsafe(method_family = none)]
        pub fn set_resolve_slice(
            &self,
            slice: usize,
        );

        /// The depth plane of the resolve texture. Defaults to zero.
        #[unsafe(method(resolveDepthPlane))]
        #[unsafe(method_family = none)]
        pub fn resolve_depth_plane(&self) -> usize;

        /// Setter for [`resolve_depth_plane`][Self::resolve_depth_plane].
        #[unsafe(method(setResolveDepthPlane:))]
        #[unsafe(method_family = none)]
        pub fn set_resolve_depth_plane(
            &self,
            depth_plane: usize,
        );

        /// The action to be performed at the beginning of a render pass.
        #[unsafe(method(loadAction))]
        #[unsafe(method_family = none)]
        pub fn load_action(&self) -> MTLLoadAction;

        /// Setter for [`load_action`][Self::load_action].
        #[unsafe(method(setLoadAction:))]
        #[unsafe(method_family = none)]
        pub fn set_load_action(
            &self,
            load_action: MTLLoadAction,
        );

        /// The action to be performed at the end of a render pass.
        #[unsafe(method(storeAction))]
        #[unsafe(method_family = none)]
        pub fn store_action(&self) -> MTLStoreAction;

        /// Setter for [`store_action`][Self::store_action].
        #[unsafe(method(setStoreAction:))]
        #[unsafe(method_family = none)]
        pub fn set_store_action(
            &self,
            store_action: MTLStoreAction,
        );

        /// Optional configuration for the store action performed at the end of a render pass.
        #[deprecated(note = "store action options have no effect on Apple Silicon")]
        #[unsafe(method(storeActionOptions))]
        #[unsafe(method_family = none)]
        pub fn store_action_options(&self) -> MTLStoreActionOptions;

        /// Setter for [`store_action_options`][Self::store_action_options].
        #[deprecated(note = "store action options have no effect on Apple Silicon")]
        #[unsafe(method(setStoreActionOptions:))]
        #[unsafe(method_family = none)]
        pub fn set_store_action_options(
            &self,
            options: MTLStoreActionOptions,
        );
    );
}

/// Methods declared on superclass `NSObject`.
impl MTLRenderPassAttachmentDescriptor {
    extern_methods!(
        #[unsafe(method(init))]
        #[unsafe(method_family = init)]
        pub fn init(this: Allocated<Self>) -> Retained<Self>;

        #[unsafe(method(new))]
        #[unsafe(method_family = new)]
        pub fn new() -> Retained<Self>;
    );
}