add MTLCommandQueueDescriptor

Author: tgymnich

lib/mtl/command_queue.jl

@@ -1,3 +1,21 @@
+export MTLCommandQueueDescriptor
+
+@objcwrapper immutable=false MTLCommandQueueDescriptor <: NSObject
+
+@objcproperties MTLCommandQueueDescriptor begin
+    @autoproperty maxCommandBufferCount::NSUInteger
+    @autoproperty logState::id{MTLLogState} setter=setLogState
+end
+
+function MTLCommandQueueDescriptor()
+    handle = @objc [MTLCommandQueueDescriptor alloc]::id{MTLCommandQueueDescriptor}
+    obj = MTLCommandQueueDescriptor(handle)
+    finalizer(release, obj)
+    @objc [obj::id{MTLCommandQueueDescriptor} init]::id{MTLCommandQueueDescriptor}
+    return obj
+end
+
+
 export MTLCommandQueue
 
 @objcwrapper immutable=false MTLCommandQueue <: NSObject
@@ -13,3 +31,10 @@ function MTLCommandQueue(dev::MTLDevice)
     finalizer(release, obj)
     return obj
 end
+
+function MTLCommandQueue(dev::MTLDevice, descriptor::MTLCommandQueueDescriptor)
+    handle = @objc [dev::id{MTLDevice} newCommandQueueWithDescriptor:descriptor::id{MTLCommandQueueDescriptor}]::id{MTLCommandQueue}
+    obj = MTLCommandQueue(handle)
+    finalizer(release, obj)
+    return obj
+end