Module: Engine::Metal::MetalFramework

Extended by:
Fiddle::Importer
Defined in:
lib/engine/metal/metal_bindings.rb

Class Method Summary collapse

Class Method Details

.create_system_default_device ⇒ Object

Get default device via Objective-C runtime instead of C function



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# File 'lib/engine/metal/metal_bindings.rb', line 70

def self.create_system_default_device
  # MTLCopyAllDevices returns an NSArray of devices, first one is default
  devices = ObjC.msg(ObjC.cls('MTLCopyAllDevicesWithObserver'), 'alloc')
  # Simpler: use the class method on MTLDevice protocol
  # Actually, let's just call the C function through a different approach
  metal_lib = Fiddle.dlopen('/System/Library/Frameworks/Metal.framework/Metal')
  create_device = Fiddle::Function.new(
    metal_lib['MTLCreateSystemDefaultDevice'],
    [],
    Fiddle::TYPE_VOIDP
  )
  create_device.call
end