1 files changed, 158 insertions, 0 deletions
diff --git a/third_party/rust/metal/src/commandbuffer.rs b/third_party/rust/metal/src/commandbuffer.rs
new file mode 100644
index 0000000000..32a1d8fb94
--- /dev/null
+++ b/third_party/rust/metal/src/commandbuffer.rs
@@ -0,0 +1,158 @@
+// 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::*;
+
+use block::Block;
+
+#[repr(u32)]
+#[allow(non_camel_case_types)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
+pub enum MTLCommandBufferStatus {
+    NotEnqueued = 0,
+    Enqueued = 1,
+    Committed = 2,
+    Scheduled = 3,
+    Completed = 4,
+    Error = 5,
+}
+
+#[repr(u32)]
+#[allow(non_camel_case_types)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
+pub enum MTLCommandBufferError {
+    None = 0,
+    Internal = 1,
+    Timeout = 2,
+    PageFault = 3,
+    Blacklisted = 4,
+    NotPermitted = 7,
+    OutOfMemory = 8,
+    InvalidResource = 9,
+    Memoryless = 10,
+    DeviceRemoved = 11,
+}
+
+#[repr(u32)]
+#[allow(non_camel_case_types)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
+pub enum MTLDispatchType {
+    Serial = 0,
+    Concurrent = 1,
+}
+
+type CommandBufferHandler<'a> = Block<(&'a CommandBufferRef,), ()>;
+
+pub enum MTLCommandBuffer {}
+
+foreign_obj_type! {
+    type CType = MTLCommandBuffer;
+    pub struct CommandBuffer;
+    pub struct CommandBufferRef;
+}
+
+impl CommandBufferRef {
+    pub fn label(&self) -> &str {
+        unsafe {
+            let label = msg_send![self, label];
+            crate::nsstring_as_str(label)
+        }
+    }
+
+    pub fn set_label(&self, label: &str) {
+        unsafe {
+            let nslabel = crate::nsstring_from_str(label);
+            let () = msg_send![self, setLabel: nslabel];
+        }
+    }
+
+    pub fn enqueue(&self) {
+        unsafe { msg_send![self, enqueue] }
+    }
+
+    pub fn commit(&self) {
+        unsafe { msg_send![self, commit] }
+    }
+
+    pub fn status(&self) -> MTLCommandBufferStatus {
+        unsafe { msg_send![self, status] }
+    }
+
+    pub fn present_drawable(&self, drawable: &DrawableRef) {
+        unsafe { msg_send![self, presentDrawable: drawable] }
+    }
+
+    pub fn wait_until_completed(&self) {
+        unsafe { msg_send![self, waitUntilCompleted] }
+    }
+
+    pub fn wait_until_scheduled(&self) {
+        unsafe { msg_send![self, waitUntilScheduled] }
+    }
+
+    pub fn add_completed_handler(&self, block: &CommandBufferHandler) {
+        unsafe { msg_send![self, addCompletedHandler: block] }
+    }
+
+    pub fn new_blit_command_encoder(&self) -> &BlitCommandEncoderRef {
+        unsafe { msg_send![self, blitCommandEncoder] }
+    }
+
+    pub fn new_compute_command_encoder(&self) -> &ComputeCommandEncoderRef {
+        unsafe { msg_send![self, computeCommandEncoder] }
+    }
+
+    pub fn new_render_command_encoder(
+        &self,
+        descriptor: &RenderPassDescriptorRef,
+    ) -> &RenderCommandEncoderRef {
+        unsafe { msg_send![self, renderCommandEncoderWithDescriptor: descriptor] }
+    }
+
+    pub fn new_parallel_render_command_encoder(
+        &self,
+        descriptor: &RenderPassDescriptorRef,
+    ) -> &ParallelRenderCommandEncoderRef {
+        unsafe { msg_send![self, parallelRenderCommandEncoderWithDescriptor: descriptor] }
+    }
+
+    pub fn compute_command_encoder_with_dispatch_type(
+        &self,
+        ty: MTLDispatchType,
+    ) -> &ComputeCommandEncoderRef {
+        unsafe { msg_send![self, computeCommandEncoderWithDispatchType: ty] }
+    }
+
+    pub fn encode_signal_event(&self, event: &EventRef, new_value: u64) {
+        unsafe {
+            msg_send![self,
+                encodeSignalEvent: event
+                value: new_value
+            ]
+        }
+    }
+
+    pub fn encode_wait_for_event(&self, event: &EventRef, value: u64) {
+        unsafe {
+            msg_send![self,
+                encodeWaitForEvent: event
+                value: value
+            ]
+        }
+    }
+
+    pub fn push_debug_group(&self, name: &str) {
+        unsafe {
+            let nslabel = crate::nsstring_from_str(name);
+            msg_send![self, pushDebugGroup: nslabel]
+        }
+    }
+
+    pub fn pop_debug_group(&self) {
+        unsafe { msg_send![self, popDebugGroup] }
+    }
+}