egl: Expose raw types for downstream integrations

src/backend/egl/context.rs

@@ -264,6 +264,13 @@ impl EGLContext {
     pub fn user_data(&self) -> &UserDataMap {
         &*self.user_data
     }
+
+    /// Get a raw handle to the underlying context.
+    ///
+    /// The pointer will become invalid, when this struct is destroyed.
+    pub fn get_context_handle(&self) -> ffi::egl::types::EGLContext {
+        self.context
+    }
 }
 
 impl Drop for EGLContext {

src/backend/egl/device.rs

@@ -173,7 +173,9 @@ impl EGLDevice {
     }
 
     /// Returns the pointer to the raw [`EGLDevice`].
-    pub fn inner(&self) -> *const c_void {
+    ///
+    /// The pointer will become invalid, when this struct is destroyed.
+    pub fn get_device_handle(&self) -> *const c_void {
         self.inner
     }
 }

src/backend/egl/surface.rs

@@ -172,6 +172,16 @@ impl EGLSurface {
     pub fn resize(&self, width: i32, height: i32, dx: i32, dy: i32) -> bool {
         self.native.resize(width, height, dx, dy)
     }
+
+    /// Get a raw handle to the underlying surface
+    ///
+    /// *Note*: The surface might get dynamically recreated during swap-buffers
+    /// causing the pointer to become invalid.
+    ///
+    /// The pointer will become invalid, when this struct is destroyed.
+    pub fn get_surface_handle(&self) -> ffi::egl::types::EGLSurface {
+        self.surface.load(Ordering::SeqCst)
+    }
 }
 
 impl Drop for EGLSurface {