1 files changed, 70 insertions, 0 deletions
diff --git a/third_party/rust/metal/src/pipeline/mod.rs b/third_party/rust/metal/src/pipeline/mod.rs
new file mode 100644
index 0000000000..e65d28d6ca
--- /dev/null
+++ b/third_party/rust/metal/src/pipeline/mod.rs
@@ -0,0 +1,70 @@
+// 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::*;
+
+mod compute;
+mod render;
+
+pub use self::compute::*;
+pub use self::render::*;
+
+#[repr(u64)]
+#[allow(non_camel_case_types)]
+#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
+pub enum MTLMutability {
+    Default = 0,
+    Mutable = 1,
+    Immutable = 2,
+}
+
+impl Default for MTLMutability {
+    #[inline]
+    fn default() -> Self {
+        MTLMutability::Default
+    }
+}
+
+pub enum MTLPipelineBufferDescriptorArray {}
+
+foreign_obj_type! {
+    type CType = MTLPipelineBufferDescriptorArray;
+    pub struct PipelineBufferDescriptorArray;
+    pub struct PipelineBufferDescriptorArrayRef;
+}
+
+impl PipelineBufferDescriptorArrayRef {
+    pub fn object_at(&self, index: NSUInteger) -> Option<&PipelineBufferDescriptorRef> {
+        unsafe { msg_send![self, objectAtIndexedSubscript: index] }
+    }
+
+    pub fn set_object_at(
+        &self,
+        index: NSUInteger,
+        buffer_desc: Option<&PipelineBufferDescriptorRef>,
+    ) {
+        unsafe { msg_send![self, setObject:buffer_desc atIndexedSubscript:index] }
+    }
+}
+
+pub enum MTLPipelineBufferDescriptor {}
+
+foreign_obj_type! {
+    type CType = MTLPipelineBufferDescriptor;
+    pub struct PipelineBufferDescriptor;
+    pub struct PipelineBufferDescriptorRef;
+}
+
+impl PipelineBufferDescriptorRef {
+    pub fn mutability(&self) -> MTLMutability {
+        unsafe { msg_send![self, mutability] }
+    }
+
+    pub fn set_mutability(&self, new_mutability: MTLMutability) {
+        unsafe { msg_send![self, setMutability: new_mutability] }
+    }
+}