1 files changed, 90 insertions, 0 deletions
diff --git a/third_party/rust/metal/src/types.rs b/third_party/rust/metal/src/types.rs
new file mode 100644
index 0000000000..92f9daf305
--- /dev/null
+++ b/third_party/rust/metal/src/types.rs
@@ -0,0 +1,90 @@
+// 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::NSUInteger;
+use std::default::Default;
+
+/// See <https://developer.apple.com/documentation/metal/mtlorigin>
+#[repr(C)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Default)]
+pub struct MTLOrigin {
+    pub x: NSUInteger,
+    pub y: NSUInteger,
+    pub z: NSUInteger,
+}
+
+/// See <https://developer.apple.com/documentation/metal/mtlsize>
+#[repr(C)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Default)]
+pub struct MTLSize {
+    pub width: NSUInteger,
+    pub height: NSUInteger,
+    pub depth: NSUInteger,
+}
+
+impl MTLSize {
+    pub fn new(width: NSUInteger, height: NSUInteger, depth: NSUInteger) -> Self {
+        Self {
+            width,
+            height,
+            depth,
+        }
+    }
+}
+
+/// See <https://developer.apple.com/documentation/metal/mtlregion>
+#[repr(C)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Default)]
+pub struct MTLRegion {
+    pub origin: MTLOrigin,
+    pub size: MTLSize,
+}
+
+impl MTLRegion {
+    #[inline]
+    pub fn new_1d(x: NSUInteger, width: NSUInteger) -> Self {
+        Self::new_2d(x, 0, width, 1)
+    }
+
+    #[inline]
+    pub fn new_2d(x: NSUInteger, y: NSUInteger, width: NSUInteger, height: NSUInteger) -> Self {
+        Self::new_3d(x, y, 0, width, height, 1)
+    }
+
+    #[inline]
+    pub fn new_3d(
+        x: NSUInteger,
+        y: NSUInteger,
+        z: NSUInteger,
+        width: NSUInteger,
+        height: NSUInteger,
+        depth: NSUInteger,
+    ) -> Self {
+        Self {
+            origin: MTLOrigin { x, y, z },
+            size: MTLSize {
+                width,
+                height,
+                depth,
+            },
+        }
+    }
+}
+
+/// See <https://developer.apple.com/documentation/metal/mtlsampleposition>
+#[repr(C)]
+#[derive(Copy, Clone, Debug, PartialEq, Default)]
+pub struct MTLSamplePosition {
+    pub x: f32,
+    pub y: f32,
+}
+
+#[repr(C)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Default)]
+pub struct MTLResourceID {
+    pub _impl: u64,
+}