- rename module to mtl to avoid collision with metal-rs metal, invoke…

… device creation + device sample working

examples/gfx_device/main.rs

@@ -15,13 +15,13 @@ use gfx::d3d12 as gfx_platform;
 use os::macos as os_platform;
 
 #[cfg(target_os = "macos")]
-use gfx::metal as gfx_platform;
+use gfx::mtl as gfx_platform;
 
 fn main() -> Result<(), hotline_rs::Error> {
     // create an app
     println!("create app!");
     let mut app = os_platform::App::create(os::AppInfo {
-        name: String::from("window"),
+        name: String::from("gfx_device"),
         window: false,
         num_buffers: 0,
         dpi_aware: true,
@@ -30,11 +30,12 @@ fn main() -> Result<(), hotline_rs::Error> {
     // create a window
     println!("create window!");
     let mut window = app.create_window(os::WindowInfo {
-        title: String::from("window!"),
+        title: String::from("gfx_device!"),
         ..Default::default()
     });
 
     // create a device
+    println!("create device!");
     let num_buffers = 2;
     let mut device = gfx_platform::Device::create(&gfx::DeviceInfo {
         render_target_heap_size: num_buffers as usize,

src/gfx.rs

@@ -10,7 +10,7 @@ pub mod d3d12;
 
 /// Implemets this interface with a Metal backend.
 #[cfg(target_os = "macos")]
-pub mod metal;
+pub mod mtl;
 
 type Error = super::Error;
 

src/gfx/metal.rs → src/gfx/mtl.rs

@@ -12,6 +12,7 @@ use std::result;
 
 #[derive(Clone)]
 pub struct Device {
+    metal_device: metal::Device,
     shader_heap: Heap,
     adapter_info: AdapterInfo
 }
@@ -393,6 +394,7 @@ impl super::Device for Device {
 
     fn create(info: &super::DeviceInfo) -> Device {
         Device {
+            metal_device: metal::Device::system_default().expect("hotline_rs::gfx::mtl: failed to create metal device"),
             shader_heap: Heap {
 
             },