Remove DX11 backend (#4828)

CHANGELOG.md

@@ -31,7 +31,6 @@ Bottom level categories:
 - DX12
 - Vulkan
 - Metal
-- DX11
 - GLES
 - WebGPU
 - Emscripten
@@ -40,6 +39,10 @@ Bottom level categories:
 
 ## Unreleased
 
+### Direct3D 11 backend removal
+
+This backend had no functionality, and with the recent support for GL on Desktop, which allows wgpu to run on older devices, there is no need to keep the backend.
+
 ### `WGPU_ALLOW_UNDERLYING_NONCOMPLIANT_ADAPTER` environment variable
 
 This adds a way to allow a Vulkan driver which is non-compliant per VK_KHR_driver_properties to be enumerated. This is intended for testing new Vulkan drivers which are not Vulkan compliant yet.

README.md

@@ -78,8 +78,7 @@ We have a [wiki](https://github.com/gfx-rs/wgpu/wiki) that serves as a knowledge
 | ----------- | ------------------------------ | ------------------ | ------------------------- | ------------------------- |
 | Vulkan      | :white_check_mark:             | :white_check_mark: | :volcano:                 |                           |
 | Metal       |                                |                    | :white_check_mark:        |                           |
-| DX12        | :white_check_mark:             |                    |                           |                           | 
-| DX11        | :hammer_and_wrench:            |                    |                           |                           |
+| DX12        | :white_check_mark:             |                    |                           |                           |
 | OpenGL      | :ok: (GL 3.3+)                 | :ok: (GL ES 3.0+)  | :triangular_ruler:        | :ok: (WebGL2)             | 
 | WebGPU      |                                |                    |                           | :white_check_mark:        |
 
@@ -138,7 +137,7 @@ determined by the value of `MINIMUM_RUST_VERSION` in
 All testing and example infrastructure share the same set of environment variables that determine which Backend/GPU it will run on.
 
 - `WGPU_ADAPTER_NAME` with a substring of the name of the adapter you want to use (ex. `1080` will match `NVIDIA GeForce 1080ti`).
-- `WGPU_BACKEND` with a comma-separated list of the backends you want to use (`vulkan`, `metal`, `dx12`, `dx11`, or `gl`).
+- `WGPU_BACKEND` with a comma-separated list of the backends you want to use (`vulkan`, `metal`, `dx12`, or `gl`).
 - `WGPU_POWER_PREF` with the power preference to choose when a specific adapter name isn't specified (`high`, `low` or `none`)
 - `WGPU_DX12_COMPILER` with the DX12 shader compiler you wish to use (`dxc` or `fxc`, note that `dxc` requires `dxil.dll` and `dxcompiler.dll` to be in the working directory otherwise it will fall back to `fxc`)
 - `WGPU_GLES_MINOR_VERSION` with the minor OpenGL ES 3 version number to request (`0`, `1`, `2` or `automatic`).

deno_webgpu/Cargo.toml

@@ -34,10 +34,10 @@ features = ["trace", "replay", "serde", "strict_asserts", "wgsl", "gles"]
 workspace = true
 features = ["metal"]
 
-# We want the wgpu-core Direct3D backends on Windows.
+# We want the wgpu-core Direct3D backend on Windows.
 [target.'cfg(windows)'.dependencies.wgpu-core]
 workspace = true
-features = ["dx11", "dx12"]
+features = ["dx12"]
 
 [target.'cfg(windows)'.dependencies.wgpu-hal]
 version = "0.18.0"

deno_webgpu/lib.rs

@@ -33,8 +33,6 @@ mod macros {
         wgpu_types::Backend::Metal => $global.$method::<wgpu_core::api::Metal>( $($param),* ),
         #[cfg(all(not(target_arch = "wasm32"), windows))]
         wgpu_types::Backend::Dx12 => $global.$method::<wgpu_core::api::Dx12>( $($param),* ),
-        #[cfg(all(not(target_arch = "wasm32"), windows))]
-        wgpu_types::Backend::Dx11 => $global.$method::<wgpu_core::api::Dx11>( $($param),* ),
         #[cfg(any(
             all(unix, not(target_os = "macos"), not(target_os = "ios")),
             feature = "angle",

etc/big-picture.xml

@@ -1 +1 @@
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player/Cargo.toml

@@ -33,7 +33,7 @@ features = ["replay"]
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies.wgc]
 workspace = true
-features = ["replay", "raw-window-handle", "strict_asserts", "wgsl", "metal", "dx11", "dx12", "vulkan", "gles"]
+features = ["replay", "raw-window-handle", "strict_asserts", "wgsl", "metal", "dx12", "vulkan", "gles"]
 
 [dev-dependencies]
 serde.workspace = true

player/README.md

@@ -10,4 +10,4 @@ play <trace-dir>
 
 When built with "winit" feature, it's able to replay the workloads that operate on a swapchain. It renders each frame sequentially and then waits for the user to close the window. When built without "winit", it launches in console mode and can replay any trace that doesn't use swapchains.
 
-Note: replaying is currently restricted to the same backend as one used for recording a trace. It is straightforward, however, to just replace the backend in RON since it's serialized as plain text. Valid values are: Vulkan, Metal, Dx12, and Dx11.
+Note: replaying is currently restricted to the same backend as one used for recording a trace. It is straightforward, however, to just replace the backend in RON since it's serialized as plain text. Valid values are: Vulkan, Metal, and Dx12.

player/tests/test.rs

@@ -68,7 +68,6 @@ impl Test<'_> {
             wgt::Backend::Vulkan => "Vulkan",
             wgt::Backend::Metal => "Metal",
             wgt::Backend::Dx12 => "Dx12",
-            wgt::Backend::Dx11 => "Dx11",
             wgt::Backend::Gl => "Gl",
             _ => unreachable!(),
         };
@@ -170,7 +169,6 @@ const BACKENDS: &[wgt::Backend] = &[
     wgt::Backend::Vulkan,
     wgt::Backend::Metal,
     wgt::Backend::Dx12,
-    wgt::Backend::Dx11,
     wgt::Backend::Gl,
 ];
 

tests/src/expectations.rs

@@ -11,7 +11,7 @@
 /// ```
 /// # use wgpu_test::*;
 /// FailureCase {
-///     backends: Some(wgpu::Backends::DX11 | wgpu::Backends::DX12),
+///     backends: Some(wgpu::Backends::DX12),
 ///     vendor: None,
 ///     adapter: Some("RTX"),
 ///     driver: None,

wgpu-core/Cargo.toml

@@ -38,7 +38,6 @@ resource_log_info = []
 metal = ["hal/metal"]
 vulkan = ["hal/vulkan"]
 gles = ["hal/gles"]
-dx11 = ["hal/dx11"]
 dx12 = ["hal/dx12"]
 
 # Use static linking for libraries. Disale to manually link. Enabled by default.

wgpu-core/src/any_surface.rs

@@ -35,10 +35,6 @@ impl AnySurface {
         if self.downcast_ref::<hal::api::Dx12>().is_some() {
             return Backend::Dx12;
         }
-        #[cfg(all(feature = "dx11", windows))]
-        if self.downcast_ref::<hal::api::Dx11>().is_some() {
-            return Backend::Dx11;
-        }
         #[cfg(feature = "gles")]
         if self.downcast_ref::<hal::api::Gles>().is_some() {
             return Backend::Gl;

wgpu-core/src/device/global.rs

@@ -2178,11 +2178,6 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
             all_queue_empty =
                 self.poll_device::<hal::api::Dx12>(force_wait, &mut closures)? && all_queue_empty;
         }
-        #[cfg(all(feature = "dx11", windows))]
-        {
-            all_queue_empty =
-                self.poll_device::<hal::api::Dx11>(force_wait, &mut closures)? && all_queue_empty;
-        }
         #[cfg(feature = "gles")]
         {
             all_queue_empty =

wgpu-core/src/global.rs

@@ -22,8 +22,6 @@ pub struct GlobalReport {
     pub metal: Option<HubReport>,
     #[cfg(all(feature = "dx12", windows))]
     pub dx12: Option<HubReport>,
-    #[cfg(all(feature = "dx11", windows))]
-    pub dx11: Option<HubReport>,
     #[cfg(feature = "gles")]
     pub gl: Option<HubReport>,
 }
@@ -40,8 +38,6 @@ impl GlobalReport {
             Backend::Metal => self.metal.as_ref().unwrap(),
             #[cfg(all(feature = "dx12", windows))]
             Backend::Dx12 => self.dx12.as_ref().unwrap(),
-            #[cfg(all(feature = "dx11", windows))]
-            Backend::Dx11 => self.dx11.as_ref().unwrap(),
             #[cfg(feature = "gles")]
             Backend::Gl => self.gl.as_ref().unwrap(),
             _ => panic!("HubReport is not supported on this backend"),
@@ -132,12 +128,6 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
             } else {
                 None
             },
-            #[cfg(all(feature = "dx11", windows))]
-            dx11: if self.instance.dx11.is_some() {
-                Some(self.hubs.dx11.generate_report())
-            } else {
-                None
-            },
             #[cfg(feature = "gles")]
             gl: if self.instance.gl.is_some() {
                 Some(self.hubs.gl.generate_report())
@@ -167,10 +157,6 @@ impl<G: GlobalIdentityHandlerFactory> Drop for Global<G> {
         {
             self.hubs.dx12.clear(&surfaces_locked, true);
         }
-        #[cfg(all(feature = "dx11", windows))]
-        {
-            self.hubs.dx11.clear(&surfaces_locked, true);
-        }
         #[cfg(feature = "gles")]
         {
             self.hubs.gl.clear(&surfaces_locked, true);

wgpu-core/src/hal_api.rs

@@ -94,27 +94,6 @@ impl HalApi for hal::api::Dx12 {
     }
 }
 
-#[cfg(all(feature = "dx11", windows))]
-impl HalApi for hal::api::Dx11 {
-    const VARIANT: Backend = Backend::Dx11;
-    fn create_instance_from_hal(name: &str, hal_instance: Self::Instance) -> Instance {
-        Instance {
-            name: name.to_owned(),
-            dx11: Some(hal_instance),
-            ..Default::default()
-        }
-    }
-    fn instance_as_hal(instance: &Instance) -> Option<&Self::Instance> {
-        instance.dx11.as_ref()
-    }
-    fn hub<G: GlobalIdentityHandlerFactory>(global: &Global<G>) -> &Hub<Self> {
-        &global.hubs.dx11
-    }
-    fn get_surface(surface: &Surface) -> Option<&HalSurface<Self>> {
-        surface.raw.downcast_ref()
-    }
-}
-
 #[cfg(feature = "gles")]
 impl HalApi for hal::api::Gles {
     const VARIANT: Backend = Backend::Gl;