// Copyright 2017 GFX developers
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
//
http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
//
http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.
use super::*;
use objc::runtime::{NO, YES};
/// See <
https://developer.apple.com/documentation/metal/mtlblendfactor>
#[repr(u64)]
#[allow(non_camel_case_types)]
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
pub enum MTLBlendFactor {
Zero = 0,
One = 1,
SourceColor = 2,
OneMinusSourceColor = 3,
SourceAlpha = 4,
OneMinusSourceAlpha = 5,
DestinationColor = 6,
OneMinusDestinationColor = 7,
DestinationAlpha = 8,
OneMinusDestinationAlpha = 9,
SourceAlphaSaturated = 10,
BlendColor = 11,
OneMinusBlendColor = 12,
BlendAlpha = 13,
OneMinusBlendAlpha = 14,
Source1Color = 15,
OneMinusSource1Color = 16,
Source1Alpha = 17,
OneMinusSource1Alpha = 18,
}
/// See <
https://developer.apple.com/documentation/metal/mtlblendoperation>
#[repr(u64)]
#[allow(non_camel_case_types)]
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
pub enum MTLBlendOperation {
Add = 0,
Subtract = 1,
ReverseSubtract = 2,
Min = 3,
Max = 4,
}
bitflags::bitflags! {
/// See <
https://developer.apple.com/documentation/metal/mtlcolorwritemask>
#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, PartialOrd, Ord)]
pub struct MTLColorWriteMask: NSUInteger {
const None = 0;
const Red = 0x1 << 3;
const Green = 0x1 << 2;
const Blue = 0x1 << 1;
const Alpha = 0x1 << 0;
const All = 0xf;
}
}
/// See <
https://developer.apple.com/documentation/metal/mtlprimitivetopologyclass>
#[repr(u64)]
#[allow(non_camel_case_types)]
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
pub enum MTLPrimitiveTopologyClass {
Unspecified = 0,
Point = 1,
Line = 2,
Triangle = 3,
}
// TODO: MTLTessellationPartitionMode
// TODO: MTLTessellationFactorStepFunction
// TODO: MTLTessellationFactorFormat
// TODO: MTLTessellationControlPointIndexType
/// See <
https://developer.apple.com/documentation/metal/mtlrenderpipelinecolorattachmentdescriptor>
pub enum MTLRenderPipelineColorAttachmentDescriptor {}
foreign_obj_type! {
type CType = MTLRenderPipelineColorAttachmentDescriptor;
pub struct RenderPipelineColorAttachmentDescriptor;
}
impl RenderPipelineColorAttachmentDescriptorRef {
pub fn pixel_format(&self) -> MTLPixelFormat {
unsafe { msg_send![self, pixelFormat] }
}
pub fn set_pixel_format(&self, pixel_format: MTLPixelFormat) {
unsafe { msg_send![self, setPixelFormat: pixel_format] }
}
pub fn is_blending_enabled(&self) -> bool {
unsafe { msg_send_bool![self, isBlendingEnabled] }
}
pub fn set_blending_enabled(&self, enabled: bool) {
unsafe { msg_send![self, setBlendingEnabled: enabled] }
}
pub fn source_rgb_blend_factor(&self) -> MTLBlendFactor {
unsafe { msg_send![self, sourceRGBBlendFactor] }
}
pub fn set_source_rgb_blend_factor(&self, blend_factor: MTLBlendFactor) {
unsafe { msg_send![self, setSourceRGBBlendFactor: blend_factor] }
}
pub fn destination_rgb_blend_factor(&self) -> MTLBlendFactor {
unsafe { msg_send![self, destinationRGBBlendFactor] }
}
pub fn set_destination_rgb_blend_factor(&self, blend_factor: MTLBlendFactor) {
unsafe { msg_send![self, setDestinationRGBBlendFactor: blend_factor] }
}
pub fn rgb_blend_operation(&self) -> MTLBlendOperation {
unsafe { msg_send![self, rgbBlendOperation] }
}
pub fn set_rgb_blend_operation(&self, blend_operation: MTLBlendOperation) {
unsafe { msg_send![self, setRgbBlendOperation: blend_operation] }
}
pub fn source_alpha_blend_factor(&self) -> MTLBlendFactor {
unsafe { msg_send![self, sourceAlphaBlendFactor] }
}
pub fn set_source_alpha_blend_factor(&self, blend_factor: MTLBlendFactor) {
unsafe { msg_send![self, setSourceAlphaBlendFactor: blend_factor] }
}
pub fn destination_alpha_blend_factor(&self) -> MTLBlendFactor {
unsafe { msg_send![self, destinationAlphaBlendFactor] }
}
pub fn set_destination_alpha_blend_factor(&self, blend_factor: MTLBlendFactor) {
unsafe { msg_send![self, setDestinationAlphaBlendFactor: blend_factor] }
}
pub fn alpha_blend_operation(&self) -> MTLBlendOperation {
unsafe { msg_send![self, alphaBlendOperation] }
}
pub fn set_alpha_blend_operation(&self, blend_operation: MTLBlendOperation) {
unsafe { msg_send![self, setAlphaBlendOperation: blend_operation] }
}
pub fn write_mask(&self) -> MTLColorWriteMask {
unsafe { msg_send![self, writeMask] }
}
pub fn set_write_mask(&self, mask: MTLColorWriteMask) {
unsafe { msg_send![self, setWriteMask: mask] }
}
}
/// See <
https://developer.apple.com/documentation/metal/mtlrenderpipelinereflection>
pub enum MTLRenderPipelineReflection {}
foreign_obj_type! {
type CType = MTLRenderPipelineReflection;
pub struct RenderPipelineReflection;
}
impl RenderPipelineReflection {
#[cfg(feature = "private")]
pub unsafe fn new(
vertex_data: *mut std::ffi::c_void,
fragment_data: *mut std::ffi::c_void,
vertex_desc: *mut std::ffi::c_void,
device: &DeviceRef,
options: u64,
flags: u64,
) -> Self {
let class = class!(MTLRenderPipelineReflection);
let this: RenderPipelineReflection = msg_send![class, alloc];
let this_alias: *mut Object = msg_send![this.as_ref(), initWithVertexData:vertex_data
fragmentData:fragment_data
serializedVertexDescriptor:vertex_desc
device:device
options:options
flags:flags];
if this_alias.is_null() {
panic!("[MTLRenderPipelineReflection init] failed");
}
this
}
}
impl RenderPipelineReflectionRef {
/// An array of objects that describe the arguments of a fragment function.
pub fn fragment_arguments(&self) -> &ArgumentArrayRef {
unsafe { msg_send![self, fragmentArguments] }
}
/// An array of objects that describe the arguments of a vertex function.
pub fn vertex_arguments(&self) -> &ArgumentArrayRef {
unsafe { msg_send![self, vertexArguments] }
}
/// An array of objects that describe the arguments of a tile shading function.
pub fn tile_arguments(&self) -> &ArgumentArrayRef {
unsafe { msg_send![self, tileArguments] }
}
}
/// TODO: Find documentation link.
pub enum MTLArgumentArray {}
foreign_obj_type! {
type CType = MTLArgumentArray;
pub struct ArgumentArray;
}
impl ArgumentArrayRef {
pub fn object_at(&self, index: NSUInteger) -> Option<&ArgumentRef> {
unsafe { msg_send![self, objectAtIndexedSubscript: index] }
}
pub fn count(&self) -> NSUInteger {
unsafe { msg_send![self, count] }
}
}
/// See <
https://developer.apple.com/documentation/metal/mtlcomputepipelinereflection>
pub enum MTLComputePipelineReflection {}
foreign_obj_type! {
type CType = MTLComputePipelineReflection;
pub struct ComputePipelineReflection;
}
impl ComputePipelineReflectionRef {
/// An array of objects that describe the arguments of a compute function.
pub fn arguments(&self) -> &ArgumentArrayRef {
unsafe { msg_send![self, arguments] }
}
}
/// See <
https://developer.apple.com/documentation/metal/mtlmeshrenderpipelinedescriptor>
/// Only available in (macos(13.0), ios(16.0))
pub enum MTLMeshRenderPipelineDescriptor {}
foreign_obj_type! {
type CType = MTLMeshRenderPipelineDescriptor;
pub struct MeshRenderPipelineDescriptor;
}
impl MeshRenderPipelineDescriptor {
pub fn new() -> Self {
unsafe {
let class = class!(MTLMeshRenderPipelineDescriptor);
msg_send![class, new]
}
}
}
impl MeshRenderPipelineDescriptorRef {
pub fn color_attachments(&self) -> &RenderPipelineColorAttachmentDescriptorArrayRef {
unsafe { msg_send![self, colorAttachments] }
}
pub fn depth_attachment_pixel_format(&self) -> MTLPixelFormat {
unsafe { msg_send![self, depthAttachmentPixelFormat] }
}
pub fn set_depth_attachment_pixel_format(&self, pixel_format: MTLPixelFormat) {
unsafe { msg_send![self, setDepthAttachmentPixelFormat: pixel_format] }
}
pub fn fragment_buffers(&self) -> Option<&PipelineBufferDescriptorArrayRef> {
unsafe { msg_send![self, fragmentBuffers] }
}
pub fn fragment_function(&self) -> Option<&FunctionRef> {
unsafe { msg_send![self, fragmentFunction] }
}
pub fn set_fragment_function(&self, function: Option<&FunctionRef>) {
unsafe { msg_send![self, setFragmentFunction: function] }
}
pub fn is_alpha_to_coverage_enabled(&self) -> bool {
unsafe { msg_send_bool![self, isAlphaToCoverageEnabled] }
}
pub fn set_alpha_to_coverage_enabled(&self, enabled: bool) {
unsafe { msg_send![self, setAlphaToCoverageEnabled: enabled] }
}
pub fn is_alpha_to_one_enabled(&self) -> bool {
unsafe { msg_send_bool![self, isAlphaToOneEnabled] }
}
pub fn set_alpha_to_one_enabled(&self, enabled: bool) {
unsafe { msg_send![self, setAlphaToOneEnabled: enabled] }
}
pub fn is_rasterization_enabled(&self) -> bool {
unsafe { msg_send_bool![self, isRasterizationEnabled] }
}
pub fn set_rasterization_enabled(&self, enabled: bool) {
unsafe { msg_send![self, setRasterizationEnabled: enabled] }
}
pub fn label(&self) -> &str {
unsafe {
let label = msg_send![self, label];
crate::nsstring_as_str(label)
}
}
pub fn set_label(&self, label: &str) {
unsafe {
let nslabel = crate::nsstring_from_str(label);
let () = msg_send![self, setLabel: nslabel];
}
}
pub fn max_total_threadgroups_per_mesh_grid(&self) -> NSUInteger {
unsafe { msg_send![self, maxTotalThreadgroupsPerMeshGrid] }
}
pub fn set_max_total_threadgroups_per_mesh_grid(
&self,
max_total_threadgroups_per_mesh_grid: NSUInteger,
) {
unsafe {
msg_send![
self,
setMaxTotalThreadgroupsPerMeshGrid: max_total_threadgroups_per_mesh_grid
]
}
}
pub fn max_total_threads_per_mesh_threadgroup(&self) -> NSUInteger {
unsafe { msg_send![self, maxTotalThreadsPerMeshThreadgroup] }
}
pub fn set_max_total_threads_per_mesh_threadgroup(
&self,
max_total_threads_per_mesh_threadgroup: NSUInteger,
) {
unsafe {
msg_send![
self,
setMaxTotalThreadsPerMeshThreadgroup: max_total_threads_per_mesh_threadgroup
]
}
}
pub fn max_total_threads_per_object_threadgroup(&self) -> NSUInteger {
unsafe { msg_send![self, maxTotalThreadsPerObjectThreadgroup] }
}
pub fn set_max_total_threads_per_object_threadgroup(
&self,
max_total_threads_per_object_threadgroup: NSUInteger,
) {
unsafe {
msg_send![
self,
setMaxTotalThreadsPerObjectThreadgroup: max_total_threads_per_object_threadgroup
]
}
}
pub fn max_vertex_amplification_count(&self) -> NSUInteger {
unsafe { msg_send![self, maxVertexAmplificationCount] }
}
pub fn set_max_vertex_amplification_count(&self, max_vertex_amplification_count: NSUI
nteger) {
unsafe {
msg_send![
self,
setMaxVertexAmplificationCount: max_vertex_amplification_count
]
}
}
pub fn mesh_buffers(&self) -> Option<&PipelineBufferDescriptorArrayRef> {
unsafe { msg_send![self, meshBuffers] }
}
pub fn mesh_function(&self) -> Option<&FunctionRef> {
unsafe { msg_send![self, meshFunction] }
}
pub fn set_mesh_function(&self, function: Option<&FunctionRef>) {
unsafe { msg_send![self, setMeshFunction: function] }
}
pub fn mesh_threadgroup_size_is_multiple_of_thread_execution_width(&self) -> bool {
unsafe { msg_send_bool![self, isMeshThreadgroupSizeIsMultipleOfThreadExecutionWidth] }
}
pub fn set_mesh_threadgroup_size_is_multiple_of_thread_execution_width(
&self,
mesh_threadgroup_size_is_multiple_of_thread_execution_width: bool,
) {
unsafe {
msg_send![
self,
setMeshThreadgroupSizeIsMultipleOfThreadExecutionWidth:
mesh_threadgroup_size_is_multiple_of_thread_execution_width
]
}
}
pub fn object_buffers(&self) -> Option<&PipelineBufferDescriptorArrayRef> {
unsafe { msg_send![self, objectBuffers] }
}
pub fn object_function(&self) -> Option<&FunctionRef> {
unsafe { msg_send![self, objectFunction] }
}
pub fn set_object_function(&self, function: Option<&FunctionRef>) {
unsafe { msg_send![self, setObjectFunction: function] }
}
pub fn object_threadgroup_size_is_multiple_of_thread_execution_width(&self) -> bool {
unsafe {
msg_send_bool![
self,
isObjectThreadgroupSizeIsMultipleOfThreadExecutionWidth
]
}
}
pub fn set_object_threadgroup_size_is_multiple_of_thread_execution_width(
&self,
object_threadgroup_size_is_multiple_of_thread_execution_width: bool,
) {
unsafe {
msg_send![
self,
setObjectThreadgroupSizeIsMultipleOfThreadExecutionWidth:
object_threadgroup_size_is_multiple_of_thread_execution_width
]
}
}
pub fn payload_memory_length(&self) -> NSUInteger {
unsafe { msg_send![self, payloadMemoryLength] }
}
pub fn set_payload_memory_length(&self, payload_memory_length: NSUInteger) {
unsafe { msg_send![self, setPayloadMemoryLength: payload_memory_length] }
}
pub fn raster_sample_count(&self) -> NSUInteger {
unsafe { msg_send![self, rasterSampleCount] }
}
pub fn set_raster_sample_count(&self, raster_sample_count: NSUInteger) {
unsafe { msg_send![self, setRasterSampleCount: raster_sample_count] }
}
pub fn stencil_attachment_pixel_format(&self) -> MTLPixelFormat {
unsafe { msg_send![self, stencilAttachmentPixelFormat] }
}
pub fn set_stencil_attachment_pixel_format(&self, pixel_format: MTLPixelFormat) {
unsafe { msg_send![self, setStencilAttachmentPixelFormat: pixel_format] }
}
pub fn reset(&self) {
unsafe { msg_send![self, reset] }
}
}
/// See <https://developer.apple.com/documentation/metal/mtlrenderpipelinedescriptor>
pub enum MTLRenderPipelineDescriptor {}
foreign_obj_type! {
type CType = MTLRenderPipelineDescriptor;
pub struct RenderPipelineDescriptor;
}
impl RenderPipelineDescriptor {
pub fn new() -> Self {
unsafe {
let class = class!(MTLRenderPipelineDescriptor);
msg_send![class, new]
}
}
}
impl RenderPipelineDescriptorRef {
pub fn label(&self) -> &str {
unsafe {
let label = msg_send![self, label];
crate::nsstring_as_str(label)
}
}
pub fn set_label(&self, label: &str) {
unsafe {
let nslabel = crate::nsstring_from_str(label);
let () = msg_send![self, setLabel: nslabel];
}
}
pub fn vertex_function(&self) -> Option<&FunctionRef> {
unsafe { msg_send![self, vertexFunction] }
}
pub fn set_vertex_function(&self, function: Option<&FunctionRef>) {
unsafe { msg_send![self, setVertexFunction: function] }
}
pub fn fragment_function(&self) -> Option<&FunctionRef> {
unsafe { msg_send![self, fragmentFunction] }
}
pub fn set_fragment_function(&self, function: Option<&FunctionRef>) {
unsafe { msg_send![self, setFragmentFunction: function] }
}
pub fn vertex_descriptor(&self) -> Option<&VertexDescriptorRef> {
unsafe { msg_send![self, vertexDescriptor] }
}
pub fn set_vertex_descriptor(&self, descriptor: Option<&VertexDescriptorRef>) {
unsafe { msg_send![self, setVertexDescriptor: descriptor] }
}
/// DEPRECATED - aliases rasterSampleCount property
pub fn sample_count(&self) -> NSUInteger {
unsafe { msg_send![self, sampleCount] }
}
/// DEPRECATED - aliases rasterSampleCount property
pub fn set_sample_count(&self, count: NSUInteger) {
unsafe { msg_send![self, setSampleCount: count] }
}
pub fn raster_sample_count(&self) -> NSUInteger {
unsafe { msg_send![self, rasterSampleCount] }
}
pub fn set_raster_sample_count(&self, count: NSUInteger) {
unsafe { msg_send![self, setRasterSampleCount: count] }
}
pub fn max_vertex_amplification_count(&self) -> NSUInteger {
unsafe { msg_send![self, maxVertexAmplificationCount] }
}
pub fn set_max_vertex_amplification_count(&self, count: NSUInteger) {
unsafe { msg_send![self, setMaxVertexAmplificationCount: count] }
}
pub fn is_alpha_to_coverage_enabled(&self) -> bool {
unsafe { msg_send_bool![self, isAlphaToCoverageEnabled] }
}
pub fn set_alpha_to_coverage_enabled(&self, enabled: bool) {
unsafe { msg_send![self, setAlphaToCoverageEnabled: enabled] }
}
pub fn is_alpha_to_one_enabled(&self) -> bool {
unsafe { msg_send_bool![self, isAlphaToOneEnabled] }
}
pub fn set_alpha_to_one_enabled(&self, enabled: bool) {
unsafe { msg_send![self, setAlphaToOneEnabled: enabled] }
}
pub fn is_rasterization_enabled(&self) -> bool {
unsafe { msg_send_bool![self, isRasterizationEnabled] }
}
pub fn set_rasterization_enabled(&self, enabled: bool) {
unsafe { msg_send![self, setRasterizationEnabled: enabled] }
}
pub fn color_attachments(&self) -> &RenderPipelineColorAttachmentDescriptorArrayRef {
unsafe { msg_send![self, colorAttachments] }
}
pub fn depth_attachment_pixel_format(&self) -> MTLPixelFormat {
unsafe { msg_send![self, depthAttachmentPixelFormat] }
}
pub fn set_depth_attachment_pixel_format(&self, pixel_format: MTLPixelFormat) {
unsafe { msg_send![self, setDepthAttachmentPixelFormat: pixel_format] }
}
pub fn stencil_attachment_pixel_format(&self) -> MTLPixelFormat {
unsafe { msg_send![self, stencilAttachmentPixelFormat] }
}
pub fn set_stencil_attachment_pixel_format(&self, pixel_format: MTLPixelFormat) {
unsafe { msg_send![self, setStencilAttachmentPixelFormat: pixel_format] }
}
pub fn input_primitive_topology(&self) -> MTLPrimitiveTopologyClass {
unsafe { msg_send![self, inputPrimitiveTopology] }
}
pub fn set_input_primitive_topology(&self, topology: MTLPrimitiveTopologyClass) {
unsafe { msg_send![self, setInputPrimitiveTopology: topology] }
}
#[cfg(feature = "private")]
pub unsafe fn serialize_vertex_data(&self) -> *mut std::ffi::c_void {
use std::ptr;
let flags = 0;
let err: *mut Object = ptr::null_mut();
msg_send![self, newSerializedVertexDataWithFlags:flags
error:err]
}
#[cfg(feature = "private")]
pub unsafe fn serialize_fragment_data(&self) -> *mut std::ffi::c_void {
msg_send![self, serializeFragmentData]
}
pub fn support_indirect_command_buffers(&self) -> bool {
unsafe { msg_send_bool![self, supportIndirectCommandBuffers] }
}
pub fn set_support_indirect_command_buffers(&self, support: bool) {
unsafe { msg_send![self, setSupportIndirectCommandBuffers: support] }
}
pub fn vertex_buffers(&self) -> Option<&PipelineBufferDescriptorArrayRef> {
unsafe { msg_send![self, vertexBuffers] }
}
pub fn fragment_buffers(&self) -> Option<&PipelineBufferDescriptorArrayRef> {
unsafe { msg_send![self, fragmentBuffers] }
}
// TODO: tesselation stuff
/// API_AVAILABLE(macos(11.0), ios(14.0));
/// Marshal to Rust Vec
pub fn binary_archives(&self) -> Vec<BinaryArchive> {
unsafe {
let archives: *mut Object = msg_send![self, binaryArchives];
let count: NSUInteger = msg_send![archives, count];
let ret = (0..count)
.map(|i| {
let a = msg_send![archives, objectAtIndex: i];
BinaryArchive::from_ptr(a)
})
.collect();
ret
}
}
/// API_AVAILABLE(macos(11.0), ios(14.0));
/// Marshal from Rust slice
pub fn set_binary_archives(&self, archives: &[&BinaryArchiveRef]) {
let ns_array = Array::<BinaryArchive>::from_slice(archives);
unsafe { msg_send![self, setBinaryArchives: ns_array] }
}
/// API_AVAILABLE(macos(11.0), ios(14.0));
pub fn fragment_linked_functions(&self) -> &LinkedFunctionsRef {
unsafe { msg_send![self, fragmentLinkedFunctions] }
}
/// API_AVAILABLE(macos(11.0), ios(14.0));
pub fn set_fragment_linked_functions(&self, functions: &LinkedFunctionsRef) {
unsafe { msg_send![self, setFragmentLinkedFunctions: functions] }
}
pub fn reset(&self) {
unsafe { msg_send![self, reset] }
}
}
/// See <https://developer.apple.com/documentation/metal/mtlrenderpipelinestate>
pub enum MTLRenderPipelineState {}
foreign_obj_type! {
type CType = MTLRenderPipelineState;
pub struct RenderPipelineState;
}
impl RenderPipelineStateRef {
pub fn device(&self) -> &DeviceRef {
unsafe { msg_send![self, device] }
}
pub fn label(&self) -> &str {
unsafe {
let label = msg_send![self, label];
crate::nsstring_as_str(label)
}
}
/// Only available on (macos(11.0), ios(14.0))
pub fn new_intersection_function_table_with_descriptor(
&self,
descriptor: &IntersectionFunctionTableDescriptorRef,
stage: MTLRenderStages,
) -> IntersectionFunctionTable {
unsafe {
msg_send![self, newIntersectionFunctionTableWithDescriptor: descriptor
stage:stage]
}
}
/// Only available on (macos(11.0), ios(14.0))
pub fn function_handle_with_function(
&self,
function: &FunctionRef,
stage: MTLRenderStages,
) -> Option<&FunctionHandleRef> {
unsafe {
msg_send![self, functionHandleWithFunction: function
stage:stage]
}
}
/// Only available on (macos(11.0), ios(14.0))
pub fn new_visible_function_table_with_descriptor(
&self,
descriptor: &VisibleFunctionTableDescriptorRef,
stage: MTLRenderStages,
) -> VisibleFunctionTable {
unsafe { msg_send![self, newVisibleFunctionTableWithDescriptor: descriptor stage:stage] }
}
}
/// See <https://developer.apple.com/documentation/metal/mtlrenderpipelinecolorattachmentdescriptorarray>
pub enum MTLRenderPipelineColorAttachmentDescriptorArray {}
foreign_obj_type! {
type CType = MTLRenderPipelineColorAttachmentDescriptorArray;
pub struct RenderPipelineColorAttachmentDescriptorArray;
}
impl RenderPipelineColorAttachmentDescriptorArrayRef {
pub fn object_at(
&self,
index: NSUInteger,
) -> Option<&RenderPipelineColorAttachmentDescriptorRef> {
unsafe { msg_send![self, objectAtIndexedSubscript: index] }
}
pub fn set_object_at(
&self,
index: NSUInteger,
attachment: Option<&RenderPipelineColorAttachmentDescriptorRef>,
) {
unsafe {
msg_send![self, setObject:attachment
atIndexedSubscript:index]
}
}
}
