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use objc2::{
extern_class, extern_conformance, extern_methods, msg_send,
rc::{Allocated, Retained},
runtime::{NSObject, ProtocolObject},
};
use objc2_foundation::{CopyingHelper, NSArray, NSCopying, NSObjectProtocol};
use crate::{
MTLAccelerationStructureGeometryDescriptor, MTLAttributeFormat, MTLBuffer, MTLCurveBasis, MTLCurveEndCaps,
MTLCurveType, MTLIndexType, MTLMotionKeyframeData,
};
extern_class!(
/// Acceleration structure motion geometry descriptor describing
/// geometry made of curve primitives
///
/// See also [Apple's documentation](https://developer.apple.com/documentation/metal/mtlaccelerationstructuremotioncurvegeometrydescriptor?language=objc)
#[unsafe(super(MTLAccelerationStructureGeometryDescriptor, NSObject))]
#[derive(Debug, PartialEq, Eq, Hash)]
pub struct MTLAccelerationStructureMotionCurveGeometryDescriptor;
);
extern_conformance!(
unsafe impl NSCopying for MTLAccelerationStructureMotionCurveGeometryDescriptor {}
);
unsafe impl CopyingHelper for MTLAccelerationStructureMotionCurveGeometryDescriptor {
type Result = Self;
}
extern_conformance!(
unsafe impl NSObjectProtocol for MTLAccelerationStructureMotionCurveGeometryDescriptor {}
);
impl MTLAccelerationStructureMotionCurveGeometryDescriptor {
extern_methods!(
/// Buffers containing curve control points for each keyframe.
/// Each control point must be of the format specified by the control
/// point format. Buffer offsets musts be multiples of the control
/// point format's element size and must be aligned to the platform's
/// buffer offset alignment. Must not be nil when the acceleration
/// structure is built.
/// Number of control points in the control point buffers
#[unsafe(method(controlPointCount))]
#[unsafe(method_family = none)]
pub fn control_point_count(&self) -> usize;
/// Setter for [`controlPointCount`][Self::controlPointCount].
#[unsafe(method(setControlPointCount:))]
#[unsafe(method_family = none)]
pub fn set_control_point_count(
&self,
control_point_count: usize,
);
/// Stride, in bytes, between control points in the control point
/// buffer. Must be a multiple of the control point format's element size
/// and must be at least the control point format's size. Defaults to 0
/// bytes, indicating that the control points are tightly packed.
#[unsafe(method(controlPointStride))]
#[unsafe(method_family = none)]
pub fn control_point_stride(&self) -> usize;
/// Setter for [`controlPointStride`][Self::controlPointStride].
#[unsafe(method(setControlPointStride:))]
#[unsafe(method_family = none)]
pub fn set_control_point_stride(
&self,
control_point_stride: usize,
);
/// Format of the control points in the control point buffer.
/// Defaults to MTLAttributeFormatFloat3 (packed).
#[unsafe(method(controlPointFormat))]
#[unsafe(method_family = none)]
pub fn control_point_format(&self) -> MTLAttributeFormat;
/// Setter for [`controlPointFormat`][Self::controlPointFormat].
#[unsafe(method(setControlPointFormat:))]
#[unsafe(method_family = none)]
pub fn set_control_point_format(
&self,
control_point_format: MTLAttributeFormat,
);
/// Buffers containing the curve radius for each control point for
/// each keyframe. Each radius must be of the type specified by the radius
/// format. Buffer offsets must be multiples of the radius format size
/// and must be aligned to the platform's buffer offset alignment. Each radius
/// must be at least zero. Must not be nil when the acceleration structure
/// is built.
/// Format of the radii in the radius buffer. Defaults to
/// MTLAttributeFormatFloat.
#[unsafe(method(radiusFormat))]
#[unsafe(method_family = none)]
pub fn radius_format(&self) -> MTLAttributeFormat;
/// Setter for [`radiusFormat`][Self::radiusFormat].
#[unsafe(method(setRadiusFormat:))]
#[unsafe(method_family = none)]
pub fn set_radius_format(
&self,
radius_format: MTLAttributeFormat,
);
/// Stride, in bytes, between radii in the radius buffer. Must be
/// a multiple of 4 bytes. Defaults to 4 bytes.
#[unsafe(method(radiusStride))]
#[unsafe(method_family = none)]
pub fn radius_stride(&self) -> usize;
/// Setter for [`radiusStride`][Self::radiusStride].
#[unsafe(method(setRadiusStride:))]
#[unsafe(method_family = none)]
pub fn set_radius_stride(
&self,
radius_stride: usize,
);
/// Index buffer containing references to control points in the control
/// point buffer. Must not be nil.
#[unsafe(method(indexBuffer))]
#[unsafe(method_family = none)]
pub fn index_buffer(&self) -> Option<Retained<ProtocolObject<dyn MTLBuffer>>>;
/// Setter for [`indexBuffer`][Self::indexBuffer].
#[unsafe(method(setIndexBuffer:))]
#[unsafe(method_family = none)]
pub fn set_index_buffer(
&self,
index_buffer: Option<&ProtocolObject<dyn MTLBuffer>>,
);
/// Index buffer offset. Must be a multiple of the index data type
/// size and must be aligned to both the index data type's alignment and
/// the platform's buffer offset alignment.
#[unsafe(method(indexBufferOffset))]
#[unsafe(method_family = none)]
pub fn index_buffer_offset(&self) -> usize;
/// Setter for [`indexBufferOffset`][Self::indexBufferOffset].
#[unsafe(method(setIndexBufferOffset:))]
#[unsafe(method_family = none)]
pub fn set_index_buffer_offset(
&self,
index_buffer_offset: usize,
);
/// Index type
#[unsafe(method(indexType))]
#[unsafe(method_family = none)]
pub fn index_type(&self) -> MTLIndexType;
/// Setter for [`indexType`][Self::indexType].
#[unsafe(method(setIndexType:))]
#[unsafe(method_family = none)]
pub fn set_index_type(
&self,
index_type: MTLIndexType,
);
/// Number of curve segments
#[unsafe(method(segmentCount))]
#[unsafe(method_family = none)]
pub fn segment_count(&self) -> usize;
/// Setter for [`segmentCount`][Self::segmentCount].
#[unsafe(method(setSegmentCount:))]
#[unsafe(method_family = none)]
pub fn set_segment_count(
&self,
segment_count: usize,
);
/// Number of control points per curve segment. Must be 2, 3, or 4.
#[unsafe(method(segmentControlPointCount))]
#[unsafe(method_family = none)]
pub fn segment_control_point_count(&self) -> usize;
/// Setter for [`segmentControlPointCount`][Self::segmentControlPointCount].
#[unsafe(method(setSegmentControlPointCount:))]
#[unsafe(method_family = none)]
pub fn set_segment_control_point_count(
&self,
segment_control_point_count: usize,
);
/// Curve type. Defaults to MTLCurveTypeRound.
#[unsafe(method(curveType))]
#[unsafe(method_family = none)]
pub fn curve_type(&self) -> MTLCurveType;
/// Setter for [`curveType`][Self::curveType].
#[unsafe(method(setCurveType:))]
#[unsafe(method_family = none)]
pub fn set_curve_type(
&self,
curve_type: MTLCurveType,
);
/// Curve basis. Defaults to MTLCurveBasisBSpline.
#[unsafe(method(curveBasis))]
#[unsafe(method_family = none)]
pub fn curve_basis(&self) -> MTLCurveBasis;
/// Setter for [`curveBasis`][Self::curveBasis].
#[unsafe(method(setCurveBasis:))]
#[unsafe(method_family = none)]
pub fn set_curve_basis(
&self,
curve_basis: MTLCurveBasis,
);
/// Type of curve end caps. Defaults to MTLCurveEndCapsNone.
#[unsafe(method(curveEndCaps))]
#[unsafe(method_family = none)]
pub fn curve_end_caps(&self) -> MTLCurveEndCaps;
/// Setter for [`curveEndCaps`][Self::curveEndCaps].
#[unsafe(method(setCurveEndCaps:))]
#[unsafe(method_family = none)]
pub fn set_curve_end_caps(
&self,
curve_end_caps: MTLCurveEndCaps,
);
#[unsafe(method(descriptor))]
#[unsafe(method_family = none)]
pub fn descriptor() -> Retained<Self>;
);
pub fn control_point_buffers(&self) -> Box<[Retained<MTLMotionKeyframeData>]> {
let control_point_buffers: Retained<NSArray<MTLMotionKeyframeData>> =
unsafe { msg_send![self, controlPointBuffers] };
control_point_buffers.to_vec().into_boxed_slice()
}
pub fn set_control_point_buffers(
&self,
control_point_buffers: &[&MTLMotionKeyframeData],
) {
let control_point_buffers = NSArray::from_slice(control_point_buffers);
unsafe {
let _: () = msg_send![self, setControlPointBuffers: &*control_point_buffers];
}
}
pub fn radius_buffers(&self) -> Box<[Retained<MTLMotionKeyframeData>]> {
let radius_buffers: Retained<NSArray<MTLMotionKeyframeData>> = unsafe { msg_send![self, radiusBuffers] };
radius_buffers.to_vec().into_boxed_slice()
}
pub fn set_radius_buffers(
&self,
radius_buffers: &[&MTLMotionKeyframeData],
) {
let radius_buffers = NSArray::from_slice(radius_buffers);
unsafe {
let _: () = msg_send![self, setRadiusBuffers: &*radius_buffers];
}
}
}
/// Methods declared on superclass `NSObject`.
impl MTLAccelerationStructureMotionCurveGeometryDescriptor {
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>;
);
}