webgpu: Enable gles support (#32452)

Cargo.lock

@@ -2245,6 +2245,15 @@ dependencies = [
  "cc",
 ]
 
+[[package]]
+name = "glutin_wgl_sys"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8098adac955faa2d31079b65dc48841251f69efd3ac25477903fc424362ead"
+dependencies = [
+ "gl_generator",
+]
+
 [[package]]
 name = "gobject-sys"
 version = "0.19.5"
@@ -3187,6 +3196,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6aae1df220ece3c0ada96b8153459b67eebe9ae9212258bb0134ae60416fdf76"
 dependencies = [
  "libc",
+ "libloading 0.8.3",
  "pkg-config",
 ]
 
@@ -7267,6 +7277,8 @@ dependencies = [
  "cfg_aliases",
  "core-graphics-types",
  "d3d12",
+ "glow",
+ "glutin_wgl_sys",
  "gpu-alloc",
  "gpu-descriptor",
  "js-sys",
@@ -7276,6 +7288,7 @@ dependencies = [
  "log",
  "metal 0.28.0",
  "naga",
+ "ndk-sys",
  "objc",
  "once_cell",
  "parking_lot",

components/script/dom/identityhub.rs

@@ -62,6 +62,8 @@ pub struct Identities {
     dx12_hub: IdentityHub,
     #[cfg(any(target_os = "ios", target_os = "macos"))]
     metal_hub: IdentityHub,
+    #[cfg(any(target_os = "linux", target_os = "windows"))]
+    gl_hub: IdentityHub,
     dummy_hub: IdentityHub,
 }
 
@@ -74,6 +76,8 @@ impl Identities {
             dx12_hub: IdentityHub::new(),
             #[cfg(any(target_os = "ios", target_os = "macos"))]
             metal_hub: IdentityHub::new(),
+            #[cfg(any(target_os = "linux", target_os = "windows"))]
+            gl_hub: IdentityHub::new(),
             dummy_hub: IdentityHub::new(),
         }
     }
@@ -86,6 +90,8 @@ impl Identities {
             Backend::Dx12 => &mut self.dx12_hub,
             #[cfg(any(target_os = "ios", target_os = "macos"))]
             Backend::Metal => &mut self.metal_hub,
+            #[cfg(any(target_os = "linux", target_os = "windows"))]
+            Backend::Gl => &mut self.gl_hub,
             _ => &mut self.dummy_hub,
         }
     }
@@ -98,6 +104,8 @@ impl Identities {
             (&mut self.dx12_hub, Backend::Dx12),
             #[cfg(any(target_os = "ios", target_os = "macos"))]
             (&mut self.metal_hub, Backend::Metal),
+            #[cfg(any(target_os = "linux", target_os = "windows"))]
+            (&mut self.gl_hub, Backend::Gl),
             (&mut self.dummy_hub, Backend::Empty),
         ]
     }

components/webgpu/Cargo.toml

@@ -34,7 +34,7 @@ features = ["metal"]
 # We want the wgpu-core Vulkan backend on Linux and Windows.
 [target.'cfg(any(windows, all(unix, not(any(target_os = "macos", target_os = "ios")))))'.dependencies.wgpu-core]
 workspace = true
-features = ["vulkan"]
+features = ["gles", "vulkan"]
 
 # We want the wgpu-core Direct3D backends on Windows.
 [target.'cfg(windows)'.dependencies.wgpu-core]