1 files changed, 67 insertions, 0 deletions
diff --git a/third_party/rust/metal/src/buffer.rs b/third_party/rust/metal/src/buffer.rs
new file mode 100644
index 0000000000..e334c54e50
--- /dev/null
+++ b/third_party/rust/metal/src/buffer.rs
@@ -0,0 +1,67 @@
+// 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::*;
+
+pub enum MTLBuffer {}
+
+foreign_obj_type! {
+    type CType = MTLBuffer;
+    pub struct Buffer;
+    pub struct BufferRef;
+    type ParentType = ResourceRef;
+}
+
+impl BufferRef {
+    pub fn length(&self) -> u64 {
+        unsafe { msg_send![self, length] }
+    }
+
+    pub fn contents(&self) -> *mut std::ffi::c_void {
+        unsafe { msg_send![self, contents] }
+    }
+
+    pub fn did_modify_range(&self, range: crate::NSRange) {
+        unsafe { msg_send![self, didModifyRange: range] }
+    }
+
+    pub fn new_texture_with_descriptor(
+        &self,
+        descriptor: &TextureDescriptorRef,
+        offset: u64,
+        bytes_per_row: u64,
+    ) -> Texture {
+        unsafe {
+            msg_send![self,
+                newTextureWithDescriptor:descriptor
+                offset:offset
+                bytesPerRow:bytes_per_row
+            ]
+        }
+    }
+
+    /// Only available on macos(10.15), NOT available on (ios)
+    pub fn remote_storage_buffer(&self) -> &BufferRef {
+        unsafe { msg_send![self, remoteStorageBuffer] }
+    }
+
+    /// Only available on (macos(10.15), NOT available on (ios)
+    pub fn new_remote_buffer_view_for_device(&self, device: &DeviceRef) -> Buffer {
+        unsafe { msg_send![self, newRemoteBufferViewForDevice: device] }
+    }
+
+    pub fn add_debug_marker(&self, name: &str, range: crate::NSRange) {
+        unsafe {
+            let name = crate::nsstring_from_str(name);
+            msg_send![self, addDebugMarker:name range:range]
+        }
+    }
+
+    pub fn remove_all_debug_markers(&self) {
+        unsafe { msg_send![self, removeAllDebugMarkers] }
+    }
+}