1 files changed, 330 insertions, 0 deletions
diff --git a/third_party/rust/metal/src/renderpass.rs b/third_party/rust/metal/src/renderpass.rs
new file mode 100644
index 0000000000..ed4f60a43d
--- /dev/null
+++ b/third_party/rust/metal/src/renderpass.rs
@@ -0,0 +1,330 @@
+// Copyright 2016 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::*;
+
+#[repr(u64)]
+#[derive(Copy, Clone, Debug)]
+pub enum MTLLoadAction {
+    DontCare = 0,
+    Load = 1,
+    Clear = 2,
+}
+
+#[repr(u64)]
+#[derive(Copy, Clone, Debug)]
+pub enum MTLStoreAction {
+    DontCare = 0,
+    Store = 1,
+    MultisampleResolve = 2,
+    StoreAndMultisampleResolve = 3,
+    Unknown = 4,
+    CustomSampleDepthStore = 5,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone, Debug)]
+pub struct MTLClearColor {
+    pub red: f64,
+    pub green: f64,
+    pub blue: f64,
+    pub alpha: f64,
+}
+
+impl MTLClearColor {
+    #[inline]
+    pub fn new(red: f64, green: f64, blue: f64, alpha: f64) -> Self {
+        Self {
+            red,
+            green,
+            blue,
+            alpha,
+        }
+    }
+}
+
+#[repr(u32)]
+#[allow(non_camel_case_types)]
+pub enum MTLMultisampleStencilResolveFilter {
+    Sample0 = 0,
+    DepthResolvedSample = 1,
+}
+
+pub enum MTLRenderPassAttachmentDescriptor {}
+
+foreign_obj_type! {
+    type CType = MTLRenderPassAttachmentDescriptor;
+    pub struct RenderPassAttachmentDescriptor;
+    pub struct RenderPassAttachmentDescriptorRef;
+}
+
+impl RenderPassAttachmentDescriptorRef {
+    pub fn texture(&self) -> Option<&TextureRef> {
+        unsafe { msg_send![self, texture] }
+    }
+
+    pub fn set_texture(&self, texture: Option<&TextureRef>) {
+        unsafe { msg_send![self, setTexture: texture] }
+    }
+
+    pub fn level(&self) -> NSUInteger {
+        unsafe { msg_send![self, level] }
+    }
+
+    pub fn set_level(&self, level: NSUInteger) {
+        unsafe { msg_send![self, setLevel: level] }
+    }
+
+    pub fn slice(&self) -> NSUInteger {
+        unsafe { msg_send![self, slice] }
+    }
+
+    pub fn set_slice(&self, slice: NSUInteger) {
+        unsafe { msg_send![self, setSlice: slice] }
+    }
+
+    pub fn depth_plane(&self) -> NSUInteger {
+        unsafe { msg_send![self, depthPlane] }
+    }
+
+    pub fn set_depth_plane(&self, depth_plane: NSUInteger) {
+        unsafe { msg_send![self, setDepthPlane: depth_plane] }
+    }
+
+    pub fn resolve_texture(&self) -> Option<&TextureRef> {
+        unsafe { msg_send![self, resolveTexture] }
+    }
+
+    pub fn set_resolve_texture(&self, resolve_texture: Option<&TextureRef>) {
+        unsafe { msg_send![self, setResolveTexture: resolve_texture] }
+    }
+
+    pub fn resolve_level(&self) -> NSUInteger {
+        unsafe { msg_send![self, resolveLevel] }
+    }
+
+    pub fn set_resolve_level(&self, resolve_level: NSUInteger) {
+        unsafe { msg_send![self, setResolveLevel: resolve_level] }
+    }
+
+    pub fn resolve_slice(&self) -> NSUInteger {
+        unsafe { msg_send![self, resolveSlice] }
+    }
+
+    pub fn set_resolve_slice(&self, resolve_slice: NSUInteger) {
+        unsafe { msg_send![self, setResolveSlice: resolve_slice] }
+    }
+
+    pub fn resolve_depth_plane(&self) -> NSUInteger {
+        unsafe { msg_send![self, resolveDepthPlane] }
+    }
+
+    pub fn set_resolve_depth_plane(&self, resolve_depth_plane: NSUInteger) {
+        unsafe { msg_send![self, setResolveDepthPlane: resolve_depth_plane] }
+    }
+
+    pub fn load_action(&self) -> MTLLoadAction {
+        unsafe { msg_send![self, loadAction] }
+    }
+
+    pub fn set_load_action(&self, load_action: MTLLoadAction) {
+        unsafe { msg_send![self, setLoadAction: load_action] }
+    }
+
+    pub fn store_action(&self) -> MTLStoreAction {
+        unsafe { msg_send![self, storeAction] }
+    }
+
+    pub fn set_store_action(&self, store_action: MTLStoreAction) {
+        unsafe { msg_send![self, setStoreAction: store_action] }
+    }
+}
+
+pub enum MTLRenderPassColorAttachmentDescriptor {}
+
+foreign_obj_type! {
+    type CType = MTLRenderPassColorAttachmentDescriptor;
+    pub struct RenderPassColorAttachmentDescriptor;
+    pub struct RenderPassColorAttachmentDescriptorRef;
+    type ParentType = RenderPassAttachmentDescriptorRef;
+}
+
+impl RenderPassColorAttachmentDescriptor {
+    pub fn new() -> Self {
+        unsafe {
+            let class = class!(MTLRenderPassColorAttachmentDescriptor);
+            msg_send![class, new]
+        }
+    }
+}
+
+impl RenderPassColorAttachmentDescriptorRef {
+    pub fn clear_color(&self) -> MTLClearColor {
+        unsafe { msg_send![self, clearColor] }
+    }
+
+    pub fn set_clear_color(&self, clear_color: MTLClearColor) {
+        unsafe { msg_send![self, setClearColor: clear_color] }
+    }
+}
+
+pub enum MTLRenderPassDepthAttachmentDescriptor {}
+
+foreign_obj_type! {
+    type CType = MTLRenderPassDepthAttachmentDescriptor;
+    pub struct RenderPassDepthAttachmentDescriptor;
+    pub struct RenderPassDepthAttachmentDescriptorRef;
+    type ParentType = RenderPassAttachmentDescriptorRef;
+}
+
+impl RenderPassDepthAttachmentDescriptorRef {
+    pub fn clear_depth(&self) -> f64 {
+        unsafe { msg_send![self, clearDepth] }
+    }
+
+    pub fn set_clear_depth(&self, clear_depth: f64) {
+        unsafe { msg_send![self, setClearDepth: clear_depth] }
+    }
+}
+
+pub enum MTLRenderPassStencilAttachmentDescriptor {}
+
+foreign_obj_type! {
+    type CType = MTLRenderPassStencilAttachmentDescriptor;
+    pub struct RenderPassStencilAttachmentDescriptor;
+    pub struct RenderPassStencilAttachmentDescriptorRef;
+    type ParentType = RenderPassAttachmentDescriptorRef;
+}
+
+impl RenderPassStencilAttachmentDescriptorRef {
+    pub fn clear_stencil(&self) -> u32 {
+        unsafe { msg_send![self, clearStencil] }
+    }
+
+    pub fn set_clear_stencil(&self, clear_stencil: u32) {
+        unsafe { msg_send![self, setClearStencil: clear_stencil] }
+    }
+
+    pub fn stencil_resolve_filter(&self) -> MTLMultisampleStencilResolveFilter {
+        unsafe { msg_send![self, stencilResolveFilter] }
+    }
+
+    pub fn set_stencil_resolve_filter(
+        &self,
+        stencil_resolve_filter: MTLMultisampleStencilResolveFilter,
+    ) {
+        unsafe { msg_send![self, setStencilResolveFilter: stencil_resolve_filter] }
+    }
+}
+
+pub enum MTLRenderPassColorAttachmentDescriptorArray {}
+
+foreign_obj_type! {
+    type CType = MTLRenderPassColorAttachmentDescriptorArray;
+    pub struct RenderPassColorAttachmentDescriptorArray;
+    pub struct RenderPassColorAttachmentDescriptorArrayRef;
+}
+
+impl RenderPassColorAttachmentDescriptorArrayRef {
+    pub fn object_at(&self, index: NSUInteger) -> Option<&RenderPassColorAttachmentDescriptorRef> {
+        unsafe { msg_send![self, objectAtIndexedSubscript: index] }
+    }
+
+    pub fn set_object_at(
+        &self,
+        index: NSUInteger,
+        attachment: Option<&RenderPassColorAttachmentDescriptorRef>,
+    ) {
+        unsafe {
+            msg_send![self, setObject:attachment
+                     atIndexedSubscript:index]
+        }
+    }
+}
+
+pub enum MTLRenderPassDescriptor {}
+
+foreign_obj_type! {
+    type CType = MTLRenderPassDescriptor;
+    pub struct RenderPassDescriptor;
+    pub struct RenderPassDescriptorRef;
+}
+
+impl RenderPassDescriptor {
+    /// Creates a default render pass descriptor with no attachments.
+    pub fn new<'a>() -> &'a RenderPassDescriptorRef {
+        unsafe { msg_send![class!(MTLRenderPassDescriptor), renderPassDescriptor] }
+    }
+}
+
+impl RenderPassDescriptorRef {
+    pub fn color_attachments(&self) -> &RenderPassColorAttachmentDescriptorArrayRef {
+        unsafe { msg_send![self, colorAttachments] }
+    }
+
+    pub fn depth_attachment(&self) -> Option<&RenderPassDepthAttachmentDescriptorRef> {
+        unsafe { msg_send![self, depthAttachment] }
+    }
+
+    pub fn set_depth_attachment(
+        &self,
+        depth_attachment: Option<&RenderPassDepthAttachmentDescriptorRef>,
+    ) {
+        unsafe { msg_send![self, setDepthAttachment: depth_attachment] }
+    }
+
+    pub fn stencil_attachment(&self) -> Option<&RenderPassStencilAttachmentDescriptorRef> {
+        unsafe { msg_send![self, stencilAttachment] }
+    }
+
+    pub fn set_stencil_attachment(
+        &self,
+        stencil_attachment: Option<&RenderPassStencilAttachmentDescriptorRef>,
+    ) {
+        unsafe { msg_send![self, setStencilAttachment: stencil_attachment] }
+    }
+
+    pub fn visibility_result_buffer(&self) -> Option<&BufferRef> {
+        unsafe { msg_send![self, visibilityResultBuffer] }
+    }
+
+    pub fn set_visibility_result_buffer(&self, buffer: Option<&BufferRef>) {
+        unsafe { msg_send![self, setVisibilityResultBuffer: buffer] }
+    }
+
+    pub fn render_target_array_length(&self) -> NSUInteger {
+        unsafe { msg_send![self, renderTargetArrayLength] }
+    }
+
+    pub fn set_render_target_array_length(&self, length: NSUInteger) {
+        unsafe { msg_send![self, setRenderTargetArrayLength: length] }
+    }
+
+    pub fn render_target_width(&self) -> NSUInteger {
+        unsafe { msg_send![self, renderTargetWidth] }
+    }
+
+    pub fn set_render_target_width(&self, size: NSUInteger) {
+        unsafe { msg_send![self, setRenderTargetWidth: size] }
+    }
+
+    pub fn render_target_height(&self) -> NSUInteger {
+        unsafe { msg_send![self, renderTargetHeight] }
+    }
+
+    pub fn set_render_target_height(&self, size: NSUInteger) {
+        unsafe { msg_send![self, setRenderTargetHeight: size] }
+    }
+
+    pub fn default_raster_sample_count(&self) -> NSUInteger {
+        unsafe { msg_send![self, defaultRasterSampleCount] }
+    }
+
+    pub fn set_default_raster_sample_count(&self, count: NSUInteger) {
+        unsafe { msg_send![self, setDefaultRasterSampleCount: count] }
+    }
+}