Move gl_device into separate directory

This will be converted into a crate once associated items are added and used in the `Device` trait. See rust-lang/rfcs#195

Author: brendanzab

src/device/Cargo.toml

@@ -10,4 +10,4 @@ name = "device"
 path = "lib.rs"
 
 [dependencies.gl]
-path = "../gl/"
+path = "../gl_device/gl/"

src/device/lib.rs

@@ -26,11 +26,8 @@
 #[phase(plugin, link)] extern crate log;
 extern crate libc;
 
-// when cargo is ready, re-enable the cfgs
-/* #[cfg(gl)] */ pub use self::gl as back;
-/* #[cfg(gl)] */ pub use gl::GlDevice;
-/* #[cfg(gl)] */ pub use gl::draw::GlCommandBuffer;
-// #[cfg(d3d11)] ... // TODO
+// TODO: Remove these exports once `gl_device` becomes a separate crate.
+pub use self::gl_device as back;
 
 use std::mem;
 
@@ -43,7 +40,10 @@ pub mod shade;
 pub mod state;
 pub mod target;
 pub mod tex;
-/* #[cfg(gl)] */ mod gl;
+
+// TODO: This will become a separate crate once associated items are implemented
+// in rustc and subsequently used in the `Device` trait.
+/* #[cfg(gl)] */ #[path = "../gl_device/lib.rs"] pub mod gl_device;
 
 /// Draw vertex count.
 pub type VertexCount = u32;

src/gfx/lib.rs

@@ -40,8 +40,6 @@ pub use render::state::{DrawState, BlendAdditive, BlendAlpha};
 pub use render::shade;
 pub use render::target::{Frame, Plane, PlaneEmpty, PlaneSurface, PlaneTexture};
 pub use device::Device;
-// when cargo is ready, re-enable the cfgs
-/* #[cfg(gl)] */ pub use device::{GlDevice, GlCommandBuffer};
 pub use device::{attrib, state, tex};
 pub use device::{BufferHandle, BufferInfo, RawBufferHandle, ShaderHandle,
     ProgramHandle, SurfaceHandle, TextureHandle};
@@ -56,3 +54,6 @@ pub use device::shade::{UniformValue,
     ValueF32Matrix2, ValueF32Matrix3, ValueF32Matrix4};
 pub use device::shade::{ShaderSource, StaticBytes, OwnedBytes, ProgramInfo};
 pub use device::target::{Color, ClearData, Layer, Level};
+
+// TODO: Remove this re-export once `gl_device` becomes a separate crate.
+pub use device::gl_device::{GlDevice, GlCommandBuffer};

src/device/gl/draw.rs renamed to src/gl_device/draw.rs

@@ -21,7 +21,7 @@
 
 //! An OpenGL loader generated by [gl-rs](https://github.com/bjz/gl-rs).
 //!
-//! This is useful directly accessing the underlying OpenGL API via the
+//! This is useful for directly accessing the underlying OpenGL API via the
 //! `GlDevice::with_gl` method. It is also used internally by the `GlDevice`
 //! implementation.
 

src/gl/Cargo.toml renamed to src/gl_device/gl/Cargo.toml

@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//! OpenGL implementation of a device, striving to support OpenGL 2.0 with at least VAOs, but using
-//! newer extensions when available.
+//! OpenGL implementation of a device, striving to support OpenGL 2.0 with at
+//! least VAOs, but using newer extensions when available.
 
 #![allow(missing_doc)]
 #![experimental]
@@ -28,9 +28,10 @@ use attrib;
 use Device;
 use blob::{Blob, RefBlobCast};
 
+pub use self::draw::GlCommandBuffer;
 pub use self::info::{Info, PlatformName, Version};
 
-pub mod draw;
+mod draw;
 mod shade;
 mod state;
 mod tex;
@@ -420,7 +421,7 @@ impl GlDevice {
     }
 }
 
-impl Device<draw::GlCommandBuffer> for GlDevice {
+impl Device<GlCommandBuffer> for GlDevice {
     fn get_capabilities<'a>(&'a self) -> &'a ::Capabilities {
         &self.caps
     }
@@ -431,7 +432,7 @@ impl Device<draw::GlCommandBuffer> for GlDevice {
         }
     }
 
-    fn submit(&mut self, cb: &draw::GlCommandBuffer) {
+    fn submit(&mut self, cb: &GlCommandBuffer) {
         self.reset_state();
         for com in cb.iter() {
             self.process(com);