test(mtl): update the metal test

Cargo.lock

@@ -1859,8 +1859,11 @@ dependencies = [
  "librashader-reflect",
  "librashader-runtime",
  "objc2 0.5.2",
+ "objc2-app-kit",
  "objc2-foundation",
  "objc2-metal",
+ "objc2-metal-kit",
+ "objc2-quartz-core",
  "rayon",
  "thiserror",
 ]
@@ -2291,6 +2294,46 @@ dependencies = [
  "objc2-encode 4.0.3",
 ]
 
+[[package]]
+name = "objc2-app-kit"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e4e89ad9e3d7d297152b17d39ed92cd50ca8063a89a9fa569046d41568891eff"
+dependencies = [
+ "bitflags 2.6.0",
+ "block2 0.5.1",
+ "libc",
+ "objc2 0.5.2",
+ "objc2-core-data",
+ "objc2-core-image",
+ "objc2-foundation",
+ "objc2-quartz-core",
+]
+
+[[package]]
+name = "objc2-core-data"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "617fbf49e071c178c0b24c080767db52958f716d9eabdf0890523aeae54773ef"
+dependencies = [
+ "bitflags 2.6.0",
+ "block2 0.5.1",
+ "objc2 0.5.2",
+ "objc2-foundation",
+]
+
+[[package]]
+name = "objc2-core-image"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55260963a527c99f1819c4f8e3b47fe04f9650694ef348ffd2227e8196d34c80"
+dependencies = [
+ "block2 0.5.1",
+ "objc2 0.5.2",
+ "objc2-foundation",
+ "objc2-metal",
+]
+
 [[package]]
 name = "objc2-encode"
 version = "3.0.0"
@@ -2327,6 +2370,33 @@ dependencies = [
  "objc2-foundation",
 ]
 
+[[package]]
+name = "objc2-metal-kit"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5e9ec2524854019d1ff69d0a3222ce930a1bdf31add9b58ef8cffb6a37eead6c"
+dependencies = [
+ "block2 0.5.1",
+ "objc2 0.5.2",
+ "objc2-app-kit",
+ "objc2-foundation",
+ "objc2-metal",
+ "objc2-quartz-core",
+]
+
+[[package]]
+name = "objc2-quartz-core"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e42bee7bff906b14b167da2bac5efe6b6a07e6f7c0a21a7308d40c960242dc7a"
+dependencies = [
+ "bitflags 2.6.0",
+ "block2 0.5.1",
+ "objc2 0.5.2",
+ "objc2-foundation",
+ "objc2-metal",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.19.0"

librashader-reflect/src/lib.rs

@@ -45,7 +45,6 @@
 //! is supported.
 #![feature(impl_trait_in_assoc_type)]
 #![feature(let_chains)]
-
 #![allow(stable_features)]
 #![feature(c_str_literals)]
 /// Shader codegen backends.

librashader-runtime-mtl/Cargo.toml

@@ -39,8 +39,12 @@ objc2-metal = { workspace = true, features = ["all"] }
 objc2 = { workspace = true, features = ["apple"] }
 
 [features]
-
 # run_test = ["icrate/AppKit", "i "icrate/Foundation_all", "icrate/MetalKit", "icrate/MetalKit_all"]
 
+[dev-dependencies]
+objc2-metal-kit = { version = "0.2", features = ["all"]}
+objc2-foundation = { version = "0.2", features = ["all"] }
+objc2-app-kit = { version = "0.2", features = ["all"] }
+objc2-quartz-core = { version = "0.2", features = ["CAMetalLayer", "objc2-metal"]}
 #[lib]
 #crate-type = ["lib", "staticlib"]

librashader-runtime-mtl/tests/hello_triangle/main.rs

@@ -1,32 +1,29 @@
-#![deny(unsafe_op_in_unsafe_fn)]
-
 use core::{cell::OnceCell, ptr::NonNull};
 use std::sync::RwLock;
 
-use icrate::Metal::{
+use objc2_app_kit::{
-    MTLBlitCommandEncoder, MTLClearColor, MTLTexture, MTLTextureDescriptor,
+    NSApplication, NSApplicationActivationPolicy, NSApplicationDelegate, NSBackingStoreType,
-    MTLTextureUsageRenderTarget,
+    NSWindow, NSWindowStyleMask,
 };
-use icrate::{
+use objc2_metal::{
-    AppKit::{
+    MTLBlitCommandEncoder, MTLClearColor, MTLTexture, MTLTextureDescriptor, MTLTextureUsage,
-        NSApplication, NSApplicationActivationPolicyRegular, NSApplicationDelegate,
-        NSBackingStoreBuffered, NSWindow, NSWindowStyleMaskClosable, NSWindowStyleMaskResizable,
-        NSWindowStyleMaskTitled,
-    },
-    Foundation::{
-        ns_string, MainThreadMarker, NSDate, NSNotification, NSObject, NSObjectProtocol, NSPoint,
-        NSRect, NSSize,
-    },
-    Metal::{
-        MTLCommandBuffer, MTLCommandEncoder, MTLCommandQueue, MTLCreateSystemDefaultDevice,
-        MTLDevice, MTLDrawable, MTLLibrary, MTLPrimitiveTypeTriangle, MTLRenderCommandEncoder,
-        MTLRenderPipelineDescriptor, MTLRenderPipelineState,
-    },
-    MetalKit::{MTKView, MTKViewDelegate},
 };
+
+use objc2_foundation::{
+    ns_string, MainThreadMarker, NSDate, NSNotification, NSObject, NSObjectProtocol, NSPoint,
+    NSRect, NSSize,
+};
+
+use objc2_metal::{
+    MTLCommandBuffer, MTLCommandEncoder, MTLCommandQueue, MTLCreateSystemDefaultDevice, MTLDevice,
+    MTLDrawable, MTLLibrary, MTLPrimitiveType, MTLRenderCommandEncoder,
+    MTLRenderPipelineDescriptor, MTLRenderPipelineState,
+};
+use objc2_metal_kit::{MTKView, MTKViewDelegate};
+
 use librashader_common::Viewport;
 use librashader_presets::ShaderPreset;
-use librashader_runtime_metal::FilterChainMetal;
+use librashader_runtime_mtl::FilterChainMetal;
 use objc2::{
     declare_class, msg_send_id, mutability::MainThreadOnly, rc::Id, runtime::ProtocolObject,
     ClassType, DeclaredClass,
@@ -161,10 +158,10 @@ declare_class!(
             // create the app window
             let window = {
                 let content_rect = NSRect::new(NSPoint::new(0., 0.), NSSize::new(768., 768.));
-                let style = NSWindowStyleMaskClosable
+                let style = NSWindowStyleMask::Closable
-                    | NSWindowStyleMaskResizable
+                    | NSWindowStyleMask::Resizable
-                    | NSWindowStyleMaskTitled;
+                    | NSWindowStyleMask::Titled;
-                let backing_store_type = NSBackingStoreBuffered;
+                let backing_store_type = NSBackingStoreType::NSBackingStoreBuffered;
                 let flag = false;
                 unsafe {
                     NSWindow::initWithContentRect_styleMask_backing_defer(
@@ -362,7 +359,7 @@ declare_class!(
             // configure the encoder with the pipeline and draw the triangle
             encoder.setRenderPipelineState(pipeline_state);
             unsafe {
-                encoder.drawPrimitives_vertexStart_vertexCount(MTLPrimitiveTypeTriangle, 0, 3)
+                encoder.drawPrimitives_vertexStart_vertexCount(MTLPrimitiveType::Triangle, 0, 3)
             };
             encoder.endEncoding();
 
@@ -382,7 +379,7 @@ declare_class!(
                     false
                 );
 
-                tex_desc.setUsage(MTLTextureUsageRenderTarget);
+                tex_desc.setUsage(MTLTextureUsage::RenderTarget);
                 //  let frontbuffer = command_queue
                 // .device()
                 // .newTextureWithDescriptor(&tex_desc)
@@ -447,7 +444,7 @@ fn main() {
     let mtm = MainThreadMarker::new().unwrap();
     // configure the app
     let app = NSApplication::sharedApplication(mtm);
-    app.setActivationPolicy(NSApplicationActivationPolicyRegular);
+    app.setActivationPolicy(NSApplicationActivationPolicy::Regular);
 
     // configure the application delegate
     let delegate = Delegate::new(mtm);

librashader-runtime-mtl/tests/main.rs

@@ -1,488 +1,6 @@
-#![cfg(feature = "run_test")]
+include!("./hello_triangle/main.rs");
-#![deny(unsafe_op_in_unsafe_fn)]
 
-use core::{cell::OnceCell, ptr::NonNull};
+#[test]
-use std::sync::RwLock;
+fn test_mtl() {
-
+    main()
-use icrate::Foundation::NSString;
-use icrate::Metal::{
-    MTLBlitCommandEncoder, MTLClearColor, MTLResource, MTLTexture, MTLTextureDescriptor,
-    MTLTextureUsagePixelFormatView, MTLTextureUsageRenderTarget, MTLTextureUsageShaderRead,
-};
-use icrate::{
-    AppKit::{
-        NSApplication, NSApplicationActivationPolicyRegular, NSApplicationDelegate,
-        NSBackingStoreBuffered, NSWindow, NSWindowStyleMaskClosable, NSWindowStyleMaskResizable,
-        NSWindowStyleMaskTitled,
-    },
-    Foundation::{
-        ns_string, MainThreadMarker, NSDate, NSNotification, NSObject, NSObjectProtocol, NSPoint,
-        NSRect, NSSize,
-    },
-    Metal::{
-        MTLCommandBuffer, MTLCommandEncoder, MTLCommandQueue, MTLCreateSystemDefaultDevice,
-        MTLDevice, MTLDrawable, MTLLibrary, MTLPrimitiveTypeTriangle, MTLRenderCommandEncoder,
-        MTLRenderPipelineDescriptor, MTLRenderPipelineState,
-    },
-    MetalKit::{MTKView, MTKViewDelegate},
-};
-use librashader_common::Viewport;
-use librashader_presets::ShaderPreset;
-use librashader_runtime_mtl::FilterChainMetal;
-use objc2::{
-    declare_class, msg_send_id, mutability::MainThreadOnly, rc::Id, runtime::ProtocolObject,
-    ClassType, DeclaredClass,
-};
-
-#[rustfmt::skip]
-const SHADERS: &str = r#"
-    #include <metal_stdlib>
-
-    struct SceneProperties {
-        float time;
-    };
-
-    struct VertexInput {
-        metal::packed_float3 position;
-        metal::packed_float3 color;
-    };
-
-    struct VertexOutput {
-        metal::float4 position [[position]];
-        metal::float4 color;
-    };
-
-    vertex VertexOutput vertex_main(
-        device const SceneProperties& properties [[buffer(0)]],
-        device const VertexInput* vertices [[buffer(1)]],
-        uint vertex_idx [[vertex_id]]
-    ) {
-        VertexOutput out;
-        VertexInput in = vertices[vertex_idx];
-        out.position =
-            metal::float4(
-                metal::float2x2(
-                    metal::cos(properties.time), -metal::sin(properties.time),
-                    metal::sin(properties.time),  metal::cos(properties.time)
-                ) * in.position.xy,
-                in.position.z,
-                1);
-        out.color = metal::float4(in.color, 1);
-        return out;
-    }
-
-    fragment metal::float4 fragment_main(VertexOutput in [[stage_in]]) {
-        return in.color;
-    }
-"#;
-
-#[derive(Copy, Clone)]
-#[repr(C)]
-pub struct SceneProperties {
-    pub time: f32,
-}
-
-#[derive(Copy, Clone)]
-#[repr(C)]
-pub struct VertexInput {
-    pub position: Position,
-    pub color: Color,
-}
-
-#[derive(Copy, Clone)]
-// NOTE: this has the same ABI as `MTLPackedFloat3`
-#[repr(C)]
-pub struct Position {
-    pub x: f32,
-    pub y: f32,
-    pub z: f32,
-}
-
-#[derive(Copy, Clone)]
-// NOTE: this has the same ABI as `MTLPackedFloat3`
-#[repr(C)]
-pub struct Color {
-    pub r: f32,
-    pub g: f32,
-    pub b: f32,
-}
-
-macro_rules! idcell {
-    ($name:ident => $this:expr) => {
-        $this.ivars().$name.set($name).expect(&format!(
-            "ivar should not already be initialized: `{}`",
-            stringify!($name)
-        ));
-    };
-    ($name:ident <= $this:expr) => {
-        #[rustfmt::skip]
-        let Some($name) = $this.ivars().$name.get() else {
-            unreachable!(
-                "ivar should be initialized: `{}`",
-                stringify!($name)
-            )
-        };
-    };
-}
-
-// declare the desired instance variables
-struct Ivars {
-    start_date: Id<NSDate>,
-    command_queue: OnceCell<Id<ProtocolObject<dyn MTLCommandQueue>>>,
-    pipeline_state: OnceCell<Id<ProtocolObject<dyn MTLRenderPipelineState>>>,
-    filter_chain: OnceCell<RwLock<FilterChainMetal>>,
-    window: OnceCell<Id<NSWindow>>,
-}
-
-// declare the Objective-C class machinery
-declare_class!(
-    struct Delegate;
-
-    // SAFETY:
-    // - The superclass NSObject does not have any subclassing requirements.
-    // - Main thread only mutability is correct, since this is an application delegate.
-    // - `Delegate` does not implement `Drop`.
-    unsafe impl ClassType for Delegate {
-        type Super = NSObject;
-        type Mutability = MainThreadOnly;
-        const NAME: &'static str = "Delegate";
-    }
-
-    impl DeclaredClass for Delegate {
-        type Ivars = Ivars;
-    }
-
-    unsafe impl NSObjectProtocol for Delegate {}
-
-    // define the delegate methods for the `NSApplicationDelegate` protocol
-    unsafe impl NSApplicationDelegate for Delegate {
-        #[method(applicationDidFinishLaunching:)]
-        #[allow(non_snake_case)]
-        unsafe fn applicationDidFinishLaunching(&self, _notification: &NSNotification) {
-            let mtm = MainThreadMarker::from(self);
-            // create the app window
-            let window = {
-                let content_rect = NSRect::new(NSPoint::new(0., 0.), NSSize::new(768., 768.));
-                let style = NSWindowStyleMaskClosable
-                    | NSWindowStyleMaskResizable
-                    | NSWindowStyleMaskTitled;
-                let backing_store_type = NSBackingStoreBuffered;
-                let flag = false;
-                unsafe {
-                    NSWindow::initWithContentRect_styleMask_backing_defer(
-                        mtm.alloc(),
-                        content_rect,
-                        style,
-                        backing_store_type,
-                        flag,
-                    )
-                }
-            };
-
-            // get the default device
-            let device = {
-                let ptr = unsafe { MTLCreateSystemDefaultDevice() };
-                unsafe { Id::retain(ptr) }.expect("Failed to get default system device.")
-            };
-
-            // create the command queue
-            let command_queue = device
-                .newCommandQueue()
-                .expect("Failed to create a command queue.");
-
-            // create the metal view
-            let mtk_view = {
-                let frame_rect = window.frame();
-                unsafe { MTKView::initWithFrame_device(mtm.alloc(), frame_rect, Some(&device)) }
-            };
-
-            // create the pipeline descriptor
-            let pipeline_descriptor = MTLRenderPipelineDescriptor::new();
-
-            unsafe {
-                pipeline_descriptor
-                    .colorAttachments()
-                    .objectAtIndexedSubscript(0)
-                    .setPixelFormat(mtk_view.colorPixelFormat());
-            }
-
-            // compile the shaders
-            let library = device
-                .newLibraryWithSource_options_error(ns_string!(SHADERS), None)
-                .expect("Failed to create a library.");
-
-            // configure the vertex shader
-            let vertex_function = library.newFunctionWithName(ns_string!("vertex_main"));
-            pipeline_descriptor.setVertexFunction(vertex_function.as_deref());
-
-            // configure the fragment shader
-            let fragment_function = library.newFunctionWithName(ns_string!("fragment_main"));
-            pipeline_descriptor.setFragmentFunction(fragment_function.as_deref());
-
-            // create the pipeline state
-            let pipeline_state = device
-                .newRenderPipelineStateWithDescriptor_error(&pipeline_descriptor)
-                .expect("Failed to create a pipeline state.");
-            // let preset = ShaderPreset::try_parse("./test/shaders_slang/crt/crt-lottes.slangp").unwrap();
-
-           let preset = ShaderPreset::try_parse("./test/shaders_slang/crt/crt-royale.slangp").unwrap();
-  // let preset = ShaderPreset::try_parse("./test/basic.slangp").unwrap();
-
-        let filter_chain = FilterChainMetal::load_from_preset(
-            preset,
-            &command_queue,
-            None,
-        )
-        .unwrap();
-
-            let filter_chain = RwLock::new(filter_chain);
-
-            // configure the metal view delegate
-            unsafe {
-                let object = ProtocolObject::from_ref(self);
-                mtk_view.setDelegate(Some(object));
-            }
-
-            // configure the window
-            window.setContentView(Some(&mtk_view));
-            window.center();
-            window.setTitle(ns_string!("metal example"));
-            window.makeKeyAndOrderFront(None);
-
-            // initialize the delegate state
-            idcell!(command_queue => self);
-            idcell!(pipeline_state => self);
-            idcell!(filter_chain => self);
-            idcell!(window => self);
-        }
-    }
-
-    // define the delegate methods for the `MTKViewDelegate` protocol
-    unsafe impl MTKViewDelegate for Delegate {
-        #[method(drawInMTKView:)]
-        #[allow(non_snake_case)]
-        unsafe fn drawInMTKView(&self, mtk_view: &MTKView) {
-            idcell!(command_queue <= self);
-            idcell!(pipeline_state <= self);
-            idcell!(filter_chain <= self);
-
-            unsafe {
-                mtk_view.setFramebufferOnly(false);
-                mtk_view.setClearColor(MTLClearColor {
-                            red: 0.3,
-                            blue: 0.5,
-                            green: 0.3,
-                            alpha: 0.0,
-                    });
-            }
-
-            // FIXME: icrate `MTKView` doesn't have a generated binding for `currentDrawable` yet
-            // (because it needs a definition of `CAMetalDrawable`, which we don't support yet) so
-            // we have to use a raw `msg_send_id` call here instead.
-            let current_drawable: Option<Id<ProtocolObject<dyn MTLDrawable>>> =
-                msg_send_id![mtk_view, currentDrawable];
-
-            // prepare for drawing
-            let Some(current_drawable) = current_drawable else {
-                return;
-            };
-            let Some(command_buffer) = command_queue.commandBuffer() else {
-                return;
-            };
-            let Some(pass_descriptor) = (unsafe { mtk_view.currentRenderPassDescriptor() }) else {
-                return;
-            };
-
-            let Some(encoder) = command_buffer.renderCommandEncoderWithDescriptor(&pass_descriptor)
-            else {
-                return;
-            };
-
-            // compute the scene properties
-            let scene_properties_data = &SceneProperties {
-                // time: unsafe { self.ivars().start_date.timeIntervalSinceNow() } as f32,
-                time: 0.0
-            };
-            // write the scene properties to the vertex shader argument buffer at index 0
-            let scene_properties_bytes = NonNull::from(scene_properties_data);
-            unsafe {
-                encoder.setVertexBytes_length_atIndex(
-                    scene_properties_bytes.cast::<core::ffi::c_void>(),
-                    core::mem::size_of_val(scene_properties_data),
-                    0,
-                )
-            };
-
-            // compute the triangle geometry
-            let vertex_input_data: &[VertexInput] = &[
-                VertexInput {
-                    position: Position {
-                        x: -f32::sqrt(3.0) / 4.0,
-                        y: -0.25,
-                        z: 0.,
-                    },
-                    color: Color {
-                        r: 1.,
-                        g: 0.,
-                        b: 0.,
-                    },
-                },
-                VertexInput {
-                    position: Position {
-                        x: f32::sqrt(3.0) / 4.0,
-                        y: -0.25,
-                        z: 0.,
-                    },
-                    color: Color {
-                        r: 0.,
-                        g: 1.,
-                        b: 0.,
-                    },
-                },
-                VertexInput {
-                    position: Position {
-                        x: 0.,
-                        y: 0.5,
-                        z: 0.,
-                    },
-                    color: Color {
-                        r: 0.,
-                        g: 0.,
-                        b: 1.,
-                    },
-                },
-            ];
-            // write the triangle geometry to the vertex shader argument buffer at index 1
-            let vertex_input_bytes = NonNull::from(vertex_input_data);
-            unsafe {
-                encoder.setVertexBytes_length_atIndex(
-                    vertex_input_bytes.cast::<core::ffi::c_void>(),
-                    core::mem::size_of_val(vertex_input_data),
-                    1,
-                )
-            };
-
-
-            // configure the encoder with the pipeline and draw the triangle
-            encoder.setRenderPipelineState(pipeline_state);
-            unsafe {
-                encoder.drawPrimitives_vertexStart_vertexCount(MTLPrimitiveTypeTriangle, 0, 3)
-            };
-            encoder.endEncoding();
-
-
-            unsafe {
-                let mut filter_chain = filter_chain.write().unwrap();
-                let texture = pass_descriptor
-                    .colorAttachments()
-                    .objectAtIndexedSubscript(0)
-                    .texture()
-                    .unwrap();
-
-     let tex_desc = MTLTextureDescriptor::texture2DDescriptorWithPixelFormat_width_height_mipmapped(
-                    texture.pixelFormat(),
-                    texture.width(),
-                    texture.height(),
-                    false
-                );
-
-                tex_desc.setUsage(MTLTextureUsageRenderTarget | MTLTextureUsageShaderRead | MTLTextureUsagePixelFormatView);
-                // tex_desc.setPixelFormat(MTLPixelFormatRGBA8Unorm);
-                 let frontbuffer = command_queue
-                .device()
-                .newTextureWithDescriptor(&tex_desc)
-                .unwrap();
-
-                frontbuffer
-                    .setLabel(Some(&*NSString::from_str("librashader frontbuffer")));
-
-                let backbuffer = command_queue
-                .device()
-                .newTextureWithDescriptor(&tex_desc)
-                .unwrap();
-
-                     backbuffer
-                    .setLabel(Some(&*NSString::from_str("librashader backbuffer")));
-                  let blit = command_buffer
-                .blitCommandEncoder()
-                .unwrap();
-                blit.copyFromTexture_toTexture(&texture, &frontbuffer);
-                blit.endEncoding();
-
-                filter_chain.frame(&frontbuffer,
-                    &Viewport {
-                        x: 0.0,
-                        y: 0.0,
-                        mvp: None,
-                        output: &backbuffer
-                    }, &command_buffer, 1, None)
-                .expect("frame");
-
-                // let rpass = MTLRenderPassDescriptor::new();
-                // rpass.colorAttachments()
-                //     .objectAtIndexedSubscript(0)
-                //     .setTexture(Some(&backbuffer));
-                // rpass.colorAttachments()
-                //     .objectAtIndexedSubscript(0)
-                //     .setLoadAction(MTLLoadActionClear);
-                // rpass.colorAttachments()
-                //     .objectAtIndexedSubscript(0)
-                //     .setStoreAction(MTLStoreActionStore);
-                //
-
-                // let clear = command_buffer
-                // .renderCommandEncoderWithDescriptor(&*rpass)
-                // .unwrap();
-                //
-                //
-                // clear.endEncoding();
-
-                let blit = command_buffer
-                .blitCommandEncoder()
-                .unwrap();
-                blit.copyFromTexture_toTexture(&backbuffer, &texture);
-                blit.endEncoding();
-            }
-
-
-            // schedule the command buffer for display and commit
-            command_buffer.presentDrawable(&current_drawable);
-            command_buffer.commit();
-        }
-
-        #[method(mtkView:drawableSizeWillChange:)]
-        #[allow(non_snake_case)]
-        unsafe fn mtkView_drawableSizeWillChange(&self, _view: &MTKView, _size: NSSize) {
-            // println!("mtkView_drawableSizeWillChange");
-        }
-    }
-);
-
-impl Delegate {
-    pub fn new(mtm: MainThreadMarker) -> Id<Self> {
-        let this = mtm.alloc();
-        let this = this.set_ivars(Ivars {
-            start_date: unsafe { NSDate::now() },
-            command_queue: OnceCell::default(),
-            pipeline_state: OnceCell::default(),
-            filter_chain: OnceCell::default(),
-            window: OnceCell::default(),
-        });
-        unsafe { msg_send_id![super(this), init] }
-    }
-}
-
-fn main() {
-    let mtm = MainThreadMarker::new().unwrap();
-    // configure the app
-    let app = NSApplication::sharedApplication(mtm);
-    app.setActivationPolicy(NSApplicationActivationPolicyRegular);
-
-    // configure the application delegate
-    let delegate = Delegate::new(mtm);
-    let object = ProtocolObject::from_ref(&*delegate);
-    app.setDelegate(Some(object));
-
-    // run the app
-    unsafe { app.run() };
 }

librashader-runtime-mtl/tests/triangle.rs

@@ -1,469 +0,0 @@
-#![deny(unsafe_op_in_unsafe_fn)]
-
-use core::{cell::OnceCell, ptr::NonNull};
-use std::sync::RwLock;
-
-use icrate::Foundation::NSString;
-use icrate::Metal::{
-    MTLBlitCommandEncoder, MTLClearColor, MTLPixelFormatRGBA8Unorm, MTLResource, MTLTexture,
-    MTLTextureDescriptor, MTLTextureUsagePixelFormatView, MTLTextureUsageRenderTarget,
-    MTLTextureUsageShaderRead,
-};
-use icrate::{
-    AppKit::{
-        NSApplication, NSApplicationActivationPolicyRegular, NSApplicationDelegate,
-        NSBackingStoreBuffered, NSWindow, NSWindowStyleMaskClosable, NSWindowStyleMaskResizable,
-        NSWindowStyleMaskTitled,
-    },
-    Foundation::{
-        ns_string, MainThreadMarker, NSDate, NSNotification, NSObject, NSObjectProtocol, NSPoint,
-        NSRect, NSSize,
-    },
-    Metal::{
-        MTLCommandBuffer, MTLCommandEncoder, MTLCommandQueue, MTLCreateSystemDefaultDevice,
-        MTLDevice, MTLDrawable, MTLLibrary, MTLPrimitiveTypeTriangle, MTLRenderCommandEncoder,
-        MTLRenderPipelineDescriptor, MTLRenderPipelineState,
-    },
-    MetalKit::{MTKView, MTKViewDelegate},
-};
-use librashader_common::Viewport;
-use librashader_presets::ShaderPreset;
-use librashader_runtime_metal::FilterChainMetal;
-use objc2::{
-    declare_class, msg_send_id, mutability::MainThreadOnly, rc::Id, runtime::ProtocolObject,
-    ClassType, DeclaredClass,
-};
-
-#[rustfmt::skip]
-const SHADERS: &str = r#"
-    #include <metal_stdlib>
-
-    struct SceneProperties {
-        float time;
-    };
-
-    struct VertexInput {
-        metal::packed_float3 position;
-        metal::packed_float3 color;
-    };
-
-    struct VertexOutput {
-        metal::float4 position [[position]];
-        metal::float4 color;
-    };
-
-    vertex VertexOutput vertex_main(
-        device const SceneProperties& properties [[buffer(0)]],
-        device const VertexInput* vertices [[buffer(1)]],
-        uint vertex_idx [[vertex_id]]
-    ) {
-        VertexOutput out;
-        VertexInput in = vertices[vertex_idx];
-        out.position =
-            metal::float4(
-                metal::float2x2(
-                    metal::cos(properties.time), -metal::sin(properties.time),
-                    metal::sin(properties.time),  metal::cos(properties.time)
-                ) * in.position.xy,
-                in.position.z,
-                1);
-        out.color = metal::float4(in.color, 1);
-        return out;
-    }
-
-    fragment metal::float4 fragment_main(VertexOutput in [[stage_in]]) {
-        return in.color;
-    }
-"#;
-
-#[derive(Copy, Clone)]
-#[repr(C)]
-pub struct SceneProperties {
-    pub time: f32,
-}
-
-#[derive(Copy, Clone)]
-#[repr(C)]
-pub struct VertexInput {
-    pub position: Position,
-    pub color: Color,
-}
-
-#[derive(Copy, Clone)]
-// NOTE: this has the same ABI as `MTLPackedFloat3`
-#[repr(C)]
-pub struct Position {
-    pub x: f32,
-    pub y: f32,
-    pub z: f32,
-}
-
-#[derive(Copy, Clone)]
-// NOTE: this has the same ABI as `MTLPackedFloat3`
-#[repr(C)]
-pub struct Color {
-    pub r: f32,
-    pub g: f32,
-    pub b: f32,
-}
-
-macro_rules! idcell {
-    ($name:ident => $this:expr) => {
-        $this.ivars().$name.set($name).expect(&format!(
-            "ivar should not already be initialized: `{}`",
-            stringify!($name)
-        ));
-    };
-    ($name:ident <= $this:expr) => {
-        #[rustfmt::skip]
-        let Some($name) = $this.ivars().$name.get() else {
-            unreachable!(
-                "ivar should be initialized: `{}`",
-                stringify!($name)
-            )
-        };
-    };
-}
-
-// declare the desired instance variables
-struct Ivars {
-    start_date: Id<NSDate>,
-    command_queue: OnceCell<Id<ProtocolObject<dyn MTLCommandQueue>>>,
-    pipeline_state: OnceCell<Id<ProtocolObject<dyn MTLRenderPipelineState>>>,
-    filter_chain: OnceCell<RwLock<FilterChainMetal>>,
-    window: OnceCell<Id<NSWindow>>,
-}
-
-// declare the Objective-C class machinery
-declare_class!(
-    struct Delegate;
-
-    // SAFETY:
-    // - The superclass NSObject does not have any subclassing requirements.
-    // - Main thread only mutability is correct, since this is an application delegate.
-    // - `Delegate` does not implement `Drop`.
-    unsafe impl ClassType for Delegate {
-        type Super = NSObject;
-        type Mutability = MainThreadOnly;
-        const NAME: &'static str = "Delegate";
-    }
-
-    impl DeclaredClass for Delegate {
-        type Ivars = Ivars;
-    }
-
-    unsafe impl NSObjectProtocol for Delegate {}
-
-    // define the delegate methods for the `NSApplicationDelegate` protocol
-    unsafe impl NSApplicationDelegate for Delegate {
-        #[method(applicationDidFinishLaunching:)]
-        #[allow(non_snake_case)]
-        unsafe fn applicationDidFinishLaunching(&self, _notification: &NSNotification) {
-            let mtm = MainThreadMarker::from(self);
-            // create the app window
-            let window = {
-                let content_rect = NSRect::new(NSPoint::new(0., 0.), NSSize::new(768., 768.));
-                let style = NSWindowStyleMaskClosable
-                    | NSWindowStyleMaskResizable
-                    | NSWindowStyleMaskTitled;
-                let backing_store_type = NSBackingStoreBuffered;
-                let flag = false;
-                unsafe {
-                    NSWindow::initWithContentRect_styleMask_backing_defer(
-                        mtm.alloc(),
-                        content_rect,
-                        style,
-                        backing_store_type,
-                        flag,
-                    )
-                }
-            };
-
-            // get the default device
-            let device = {
-                let ptr = unsafe { MTLCreateSystemDefaultDevice() };
-                unsafe { Id::retain(ptr) }.expect("Failed to get default system device.")
-            };
-
-            // create the command queue
-            let command_queue = device
-                .newCommandQueue()
-                .expect("Failed to create a command queue.");
-
-            // create the metal view
-            let mtk_view = {
-                let frame_rect = window.frame();
-                unsafe { MTKView::initWithFrame_device(mtm.alloc(), frame_rect, Some(&device)) }
-            };
-
-            // create the pipeline descriptor
-            let pipeline_descriptor = MTLRenderPipelineDescriptor::new();
-
-            unsafe {
-                pipeline_descriptor
-                    .colorAttachments()
-                    .objectAtIndexedSubscript(0)
-                    .setPixelFormat(mtk_view.colorPixelFormat());
-            }
-
-            // compile the shaders
-            let library = device
-                .newLibraryWithSource_options_error(ns_string!(SHADERS), None)
-                .expect("Failed to create a library.");
-
-            // configure the vertex shader
-            let vertex_function = library.newFunctionWithName(ns_string!("vertex_main"));
-            pipeline_descriptor.setVertexFunction(vertex_function.as_deref());
-
-            // configure the fragment shader
-            let fragment_function = library.newFunctionWithName(ns_string!("fragment_main"));
-            pipeline_descriptor.setFragmentFunction(fragment_function.as_deref());
-
-            // create the pipeline state
-            let pipeline_state = device
-                .newRenderPipelineStateWithDescriptor_error(&pipeline_descriptor)
-                .expect("Failed to create a pipeline state.");
-            // let preset = ShaderPreset::try_parse("./test/shaders_slang/crt/crt-lottes.slangp").unwrap();
-
-           let preset = ShaderPreset::try_parse("./test/shaders_slang/crt/crt-royale.slangp").unwrap();
-  // let preset = ShaderPreset::try_parse("./test/basic.slangp").unwrap();
-
-        let filter_chain = FilterChainMetal::load_from_preset(
-            preset,
-            &command_queue,
-            None,
-        )
-        .unwrap();
-
-            let filter_chain = RwLock::new(filter_chain);
-
-            // configure the metal view delegate
-            unsafe {
-                let object = ProtocolObject::from_ref(self);
-                mtk_view.setDelegate(Some(object));
-            }
-
-            // configure the window
-            window.setContentView(Some(&mtk_view));
-            window.center();
-            window.setTitle(ns_string!("metal example"));
-            window.makeKeyAndOrderFront(None);
-
-            // initialize the delegate state
-            idcell!(command_queue => self);
-            idcell!(pipeline_state => self);
-            idcell!(filter_chain => self);
-            idcell!(window => self);
-        }
-    }
-
-    // define the delegate methods for the `MTKViewDelegate` protocol
-    unsafe impl MTKViewDelegate for Delegate {
-        #[method(drawInMTKView:)]
-        #[allow(non_snake_case)]
-        unsafe fn drawInMTKView(&self, mtk_view: &MTKView) {
-            idcell!(command_queue <= self);
-            idcell!(pipeline_state <= self);
-            idcell!(filter_chain <= self);
-
-            unsafe {
-                mtk_view.setFramebufferOnly(false);
-                mtk_view.setClearColor(MTLClearColor {
-                            red: 0.3,
-                            blue: 0.5,
-                            green: 0.3,
-                            alpha: 0.0,
-                    });
-            }
-
-            // FIXME: icrate `MTKView` doesn't have a generated binding for `currentDrawable` yet
-            // (because it needs a definition of `CAMetalDrawable`, which we don't support yet) so
-            // we have to use a raw `msg_send_id` call here instead.
-            let current_drawable: Option<Id<ProtocolObject<dyn MTLDrawable>>> =
-                msg_send_id![mtk_view, currentDrawable];
-
-            // prepare for drawing
-            let Some(current_drawable) = current_drawable else {
-                return;
-            };
-            let Some(command_buffer) = command_queue.commandBuffer() else {
-                return;
-            };
-            let Some(pass_descriptor) = (unsafe { mtk_view.currentRenderPassDescriptor() }) else {
-                return;
-            };
-
-            let Some(encoder) = command_buffer.renderCommandEncoderWithDescriptor(&pass_descriptor)
-            else {
-                return;
-            };
-
-            // compute the scene properties
-            let scene_properties_data = &SceneProperties {
-                // time: unsafe { self.ivars().start_date.timeIntervalSinceNow() } as f32,
-                time: 0.0
-            };
-            // write the scene properties to the vertex shader argument buffer at index 0
-            let scene_properties_bytes = NonNull::from(scene_properties_data);
-            unsafe {
-                encoder.setVertexBytes_length_atIndex(
-                    scene_properties_bytes.cast::<core::ffi::c_void>(),
-                    core::mem::size_of_val(scene_properties_data),
-                    0,
-                )
-            };
-
-            // compute the triangle geometry
-            let vertex_input_data: &[VertexInput] = &[
-                VertexInput {
-                    position: Position {
-                        x: -f32::sqrt(3.0) / 4.0,
-                        y: -0.25,
-                        z: 0.,
-                    },
-                    color: Color {
-                        r: 1.,
-                        g: 0.,
-                        b: 0.,
-                    },
-                },
-                VertexInput {
-                    position: Position {
-                        x: f32::sqrt(3.0) / 4.0,
-                        y: -0.25,
-                        z: 0.,
-                    },
-                    color: Color {
-                        r: 0.,
-                        g: 1.,
-                        b: 0.,
-                    },
-                },
-                VertexInput {
-                    position: Position {
-                        x: 0.,
-                        y: 0.5,
-                        z: 0.,
-                    },
-                    color: Color {
-                        r: 0.,
-                        g: 0.,
-                        b: 1.,
-                    },
-                },
-            ];
-            // write the triangle geometry to the vertex shader argument buffer at index 1
-            let vertex_input_bytes = NonNull::from(vertex_input_data);
-            unsafe {
-                encoder.setVertexBytes_length_atIndex(
-                    vertex_input_bytes.cast::<core::ffi::c_void>(),
-                    core::mem::size_of_val(vertex_input_data),
-                    1,
-                )
-            };
-
-
-            // configure the encoder with the pipeline and draw the triangle
-            encoder.setRenderPipelineState(pipeline_state);
-            unsafe {
-                encoder.drawPrimitives_vertexStart_vertexCount(MTLPrimitiveTypeTriangle, 0, 3)
-            };
-            encoder.endEncoding();
-
-
-            unsafe {
-                let mut filter_chain = filter_chain.write().unwrap();
-                let texture = pass_descriptor
-                    .colorAttachments()
-                    .objectAtIndexedSubscript(0)
-                    .texture()
-                    .unwrap();
-
- let tex_desc = MTLTextureDescriptor::texture2DDescriptorWithPixelFormat_width_height_mipmapped(
-                    texture.pixelFormat(),
-                    texture.width(),
-                    texture.height(),
-                    false
-                );
-
-                tex_desc.setUsage(MTLTextureUsageRenderTarget | MTLTextureUsageShaderRead | MTLTextureUsagePixelFormatView);
-                // tex_desc.setPixelFormat(MTLPixelFormatRGBA8Unorm);
-                 let frontbuffer = command_queue
-                .device()
-                .newTextureWithDescriptor(&tex_desc)
-                .unwrap();
-
-                frontbuffer
-                    .setLabel(Some(&*NSString::from_str("librashader frontbuffer")));
-
-                let backbuffer = command_queue
-                .device()
-                .newTextureWithDescriptor(&tex_desc)
-                .unwrap();
-
-                     backbuffer
-                    .setLabel(Some(&*NSString::from_str("librashader backbuffer")));
-                  let blit = command_buffer
-                .blitCommandEncoder()
-                .unwrap();
-                blit.copyFromTexture_toTexture(&texture, &frontbuffer);
-                blit.endEncoding();
-
-                filter_chain.frame(&frontbuffer,
-                    &Viewport {
-                        x: 0.0,
-                        y: 0.0,
-                        mvp: None,
-                        output: &backbuffer
-                    }, &command_buffer, 1, None)
-                .expect("frame");
-
-                let blit = command_buffer
-                .blitCommandEncoder()
-                .unwrap();
-                blit.copyFromTexture_toTexture(&backbuffer, &texture);
-                blit.endEncoding();
-            }
-
-
-            // schedule the command buffer for display and commit
-            command_buffer.presentDrawable(&current_drawable);
-            command_buffer.commit();
-        }
-
-        #[method(mtkView:drawableSizeWillChange:)]
-        #[allow(non_snake_case)]
-        unsafe fn mtkView_drawableSizeWillChange(&self, _view: &MTKView, _size: NSSize) {
-            // println!("mtkView_drawableSizeWillChange");
-        }
-    }
-);
-
-impl Delegate {
-    pub fn new(mtm: MainThreadMarker) -> Id<Self> {
-        let this = mtm.alloc();
-        let this = this.set_ivars(Ivars {
-            start_date: unsafe { NSDate::now() },
-            command_queue: OnceCell::default(),
-            pipeline_state: OnceCell::default(),
-            filter_chain: OnceCell::default(),
-            window: OnceCell::default(),
-        });
-        unsafe { msg_send_id![super(this), init] }
-    }
-}
-
-fn main() {
-    let mtm = MainThreadMarker::new().unwrap();
-    // configure the app
-    let app = NSApplication::sharedApplication(mtm);
-    app.setActivationPolicy(NSApplicationActivationPolicyRegular);
-
-    // configure the application delegate
-    let delegate = Delegate::new(mtm);
-    let object = ProtocolObject::from_ref(&*delegate);
-    app.setDelegate(Some(object));
-
-    // run the app
-    unsafe { app.run() };
-}