- Setup EGL context for Wayland. Test window now opens as black rectangle.

CMakeLists.txt

@@ -84,7 +84,9 @@ add_library(fennec STATIC
 # CORE =================================================================================================================
         include/fennec/core/engine.h source/core/engine.cpp
         include/fennec/core/event.h  source/core/event.cpp
+        include/fennec/core/logger.h source/core/logger.cpp
 
+        include/fennec/core/version.h
         include/fennec/core/system.h
 
 
@@ -273,9 +275,9 @@ add_library(fennec STATIC
 # PLATFORM =============================================================================================================
 
         include/fennec/platform/interface/fwd.h
-        include/fennec/platform/interface/platform.h source/platform/interface/platform.cpp
         include/fennec/platform/interface/display_server.h
-        include/fennec/platform/interface/window.h
+        include/fennec/platform/interface/platform.h source/platform/interface/platform.cpp
+        include/fennec/platform/interface/window.h   source/platform/interface/window.cpp
 
 # GRAPHICS =============================================================================================================
 
@@ -284,11 +286,7 @@ add_library(fennec STATIC
 # EXTRA SOURCES ========================================================================================================
 
         ${FENNEC_EXTRA_SOURCES}
-        source/platform/linux/wayland/window.cpp
+
-        source/platform/interface/window.cpp
-        include/fennec/core/logger.h
-        source/core/log.cpp
-        source/core/logger.cpp
 )
 
 add_dependencies(fennec metaprogramming fennec-dependencies)

cmake/opengl.cmake

@@ -16,19 +16,31 @@
 #  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 # ======================================================================================================================
 
+find_package(OpenGL)
+
 if(FENNEC_GRAPHICS_WANT_EGL)
     find_package(OpenGL REQUIRED COMPONENTS EGL)
-    find_package(GLEW REQUIRED)
     message(STATUS "EGL Requested")
-else()
+
-    find_package(OpenGL)
+    fennec_add_link_libraries(OpenGL::EGL)
-    find_package(GLEW REQUIRED)
+
+    fennec_add_sources(
+            include/fennec/platform/opengl/egl/fwd.h
+            include/fennec/platform/opengl/egl/context.h source/platform/opengl/egl/context.cpp
+            include/fennec/platform/opengl/egl/surface.h source/platform/opengl/egl/surface.cpp
+    )
 endif()
 
+find_package(GLEW REQUIRED)
+
 if(TARGET OpenGL::GL AND TARGET GLEW::GLEW)
     message(STATUS "Found OpenGL: ${OPENGL_gl_LIBRARY}")
     fennec_add_link_libraries(OpenGL::GL GLEW::GLEW)
     fennec_add_definitions(FENNEC_GRAPHICS_OPENGL=1)
+
+    fennec_add_sources(
+            include/fennec/renderers/opengl/glcontext.h source/renderers/opengl/glcontext.cpp
+    )
 else()
     message(FATAL_ERROR "No Suitable OpenGL implementation found.")
 endif()

cmake/wayland.cmake

@@ -109,8 +109,13 @@ macro(fennec_check_wayland)
                 include/fennec/platform/linux/wayland/lib/loader.h source/platform/linux/wayland/lib/loader.cpp
 
                 # Fennec Files
-                include/fennec/platform/linux/wayland/window.h
+                include/fennec/platform/linux/wayland/fwd.h
                 include/fennec/platform/linux/wayland/server.h source/platform/linux/wayland/server.cpp
+                include/fennec/platform/linux/wayland/window.h source/platform/linux/wayland/window.cpp
+
+                # EGL
+                include/fennec/platform/linux/wayland/egl/context.h source/platform/linux/wayland/egl/context.cpp
+                include/fennec/platform/linux/wayland/egl/surface.h source/platform/linux/wayland/egl/surface.cpp
         )
 
         fennec_add_definitions(

include/fennec/core/version.h

@@ -16,23 +16,33 @@
 //  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 // =====================================================================================================================
 
-#ifndef FENNEC_TEST_LANG_SEQUENCES_H
+///
-#define FENNEC_TEST_LANG_SEQUENCES_H
+/// \file version.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
 
-#include <fennec/lang/const_sequences.h>
 
-namespace fennec::test
+#ifndef FENNEC_CORE_VERSION_H
+#define FENNEC_CORE_VERSION_H
+
+#include <fennec/lang/types.h>
+#include <fennec/string/string.h>
+
+namespace fennec
 {
 
-	inline void test_sequences()
+struct version {
-	{
+	uint32_t major, minor, patch;
-		static_assert(fennec::is_same_v<make_index_sequence_t<2>, const_index_sequence<0, 1>>);
+	string str;
-		static_assert(fennec::is_same_v<make_index_sequence_t<3>, const_index_sequence<0, 1, 2>>);
+};
-		static_assert(fennec::is_same_v<make_index_sequence_t<4>, const_index_sequence<0, 1, 2, 3>>);
-
-		// TODO
-	}
 
 }
 
-#endif // FENNEC_TEST_LANG_SEQUENCES_H
+#endif // FENNEC_CORE_VERSION_H

include/fennec/lang/detail/_type_traits.h

@@ -133,6 +133,13 @@ namespace fennec::detail
 
 	template<typename T>
 	auto _is_mappable(...) -> false_type;
+
+
+	template<typename B> auto _ptr_conv(const volatile B*)    -> true_type;
+	template<typename>   auto _ptr_conv(const volatile void*) -> false_type;
+
+	template<typename B, typename D> auto _is_base_of(int) -> decltype(detail::_ptr_conv<B>(static_cast<D*>(nullptr)));
+	template<typename,   typename>   auto _is_base_of(...) -> false_type;
 }
 
 #endif // FENNEC_LANG_DETAIL_TYPE_TRAITS_H

include/fennec/lang/type_traits.h

@@ -790,6 +790,25 @@ template<typename T> struct is_same<T, T> : true_type {};
 /// \tparam T1 second type to check
 template<typename T0, typename T1> constexpr bool_t is_same_v = is_same<T0, T1> {};
 
+
+// fennec::is_base_of =====================================================================================================
+
+///
+/// \brief Check if `Derived` has a base type of `Base`
+///
+/// \details Checks if `Base` is a base type of `Derived` and stores it in `is_base_of::value`
+/// \tparam Base base type to check
+/// \tparam Derived derived type to check
+template<typename Base, typename Derived> struct is_base_of : bool_constant<
+	is_class_v<Base> and is_class_v<Derived> and decltype(detail::_is_base_of<Base, Derived>(0))::value
+> {};
+
+///
+/// \brief Shorthand for ```is_base_of<T0, T1>::value```
+/// \tparam Base base type to check
+/// \tparam Derived derived type to check
+template<typename Base, typename Derived> constexpr bool_t is_base_of_v = is_base_of<Base, Derived> {};
+
 // fennec::is_complete ==============================================================================================
 
 ///

include/fennec/memory/pointers.h

@@ -128,7 +128,7 @@ public:
 	///
 	/// \brief Default Constructor, if it owns a resource, it deletes it using `delete_t`
 	constexpr ~unique_ptr() {
-		if(_handle) _delete(_handle);
+		reset();
 	}
 
 	constexpr unique_ptr& operator=(const unique_ptr&) = delete;
@@ -140,6 +140,20 @@ public:
 		return *this;
 	}
 
+	void reset(pointer_t ptr) {
+		if(_handle) {
+			_delete(_handle);
+			_handle = ptr;
+		}
+	}
+
+	void reset(nullptr_t = nullptr) {
+		if(_handle) {
+			_delete(_handle);
+			_handle = nullptr;
+		}
+	}
+
 	pointer_t release() {
 		pointer_t retval = _handle;
 		_handle = nullptr;

include/fennec/platform/interface/display_server.h

@@ -40,6 +40,16 @@
 namespace fennec
 {
 
+class display_server;
+
+///
+/// \brief Interface resembling the API for a display server of an operating system, e.g. Linux X11/Wayland
+///
+/// \details An implementation for a display server should inherit `display_server_base` and note the following:
+///
+///          For a server type `DisplayT`; any `gfxcontext` implementation that wishes to implement `DisplayT`
+///          must provide a constructor that accepts a `DisplayT*`. `DisplayT::ctx_registry::register_type` must then be
+///          called for the `gfxcontext` implementation.
 class display_server : public type_registry<display_server, platform*> {
 // Typedefs/Constants/Enums ============================================================================================
 public:
@@ -99,6 +109,9 @@ enum feature_ : uint32_t {
 		return features.test(feature);
 	}
 
+	gfxcontext* get_gfx_context() {
+		return gfx_context;
+	}
 
 	virtual window* create_window(const window::config& conf) = 0;
 
@@ -110,16 +123,31 @@ enum feature_ : uint32_t {
 	virtual void disconnect()      = 0;
 	virtual bool connected() const = 0;
 
+	virtual void dispatch() = 0;
+
+	virtual void* get_native_handle() = 0;
+
 
 protected:
 	featureset_t         features;
 	object_pool<window*> windows;
+	gfxcontext*          gfx_context;
 
 	FENNEC_RTTI_CLASS_ENABLE() {
-		
 	}
 };
 
+template<typename DisplayT, typename WindowT>
+class display_server_base : public display_server, public type_registry<gfxcontext, DisplayT*> {
+public:
+	display_server_base(fennec::platform* p)
+		: display_server(p) {
+	}
+
+	using ctx_registry = type_registry<gfxcontext, DisplayT*>;
+	using window_t     = WindowT;
+};
+
 }
 
 #endif // FENNEC_PLATFORM_INTERFACE_DISPLAY_SERVER_H

include/fennec/platform/interface/fwd.h

@@ -25,7 +25,9 @@ namespace fennec
 class platform;
 
 class display_server; // The display server used by the OS, e.g. WDM, Wayland, X11, etc.
+class gfxcontext;     // Handles the GFX API context of a display server, e.g. OpenGL, Vulkan, etc.
 class window;         // Handles window surfaces of the display protocol
+class gfxsurface;     // Handles the GFX surface of a window for a specific gfxcontext
 
 }
 

include/fennec/platform/interface/window.h

@@ -105,6 +105,10 @@ public:
 
 	window* get_parent() const;
 
+	const ivec2& get_size()   const { return cfg.size; }
+	int          get_width()  const { return cfg.size.x; }
+	int          get_height() const { return cfg.size.y; }
+
 	bool get_flag(uint8_t flag) const { return cfg.flags.test(flag); }
 
 	bool is_always_on_top() const { return get_flag(flag_always_on_top); }
@@ -120,6 +124,7 @@ public:
 	bool is_running()       const { return get_flag(flag_running); }
 	bool is_no_focus()      const { return get_flag(flag_no_focus); }
 
+
 	virtual bool set_flag(uint8_t flag, bool val) = 0;
 
 	bool set_always_on_top(bool val) { return set_flag(flag_always_on_top, val); }
@@ -135,13 +140,27 @@ public:
 	virtual void show() = 0;
 	virtual void hide() = 0;
 
-	virtual void dispatch() = 0;
+	virtual void begin_frame();
+	virtual void end_frame();
+
+	virtual void* get_native_handle() = 0;
 
 protected:
 	display_server* const server;
 	const size_t          id;
 	config                cfg;
 	window*               root;
+	gfxsurface*           gfx_surface;
+};
+
+template<typename DisplayT>
+class window_base : public window {
+public:
+	window_base(display_server* display, size_t id, const config& conf)
+		: window(display, id, conf) {
+	}
+
+	using display_t = DisplayT;
 };
 
 }

include/fennec/platform/linux/wayland/egl/context.h

@@ -0,0 +1,55 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file context.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef FENNEC_PLATFORM_LINUX_WAYLAND_EGL_CONTEXT_H
+#define FENNEC_PLATFORM_LINUX_WAYLAND_EGL_CONTEXT_H
+
+#include <fennec/platform/opengl/egl/context.h>
+
+namespace fennec
+{
+
+class wayland_eglcontext : public eglcontext {
+public:
+	explicit wayland_eglcontext(display_server* display);
+	~wayland_eglcontext();
+
+	gfxsurface* create_surface(window* window) override;
+
+private:
+	FENNEC_RTTI_CLASS_ENABLE(eglcontext) {
+		wayland_server::ctx_registry::register_type<wayland_eglcontext>();
+	}
+};
+
+}
+
+#endif // FENNEC_PLATFORM_LINUX_WAYLAND_EGL_CONTEXT_H

include/fennec/platform/linux/wayland/egl/surface.h

@@ -0,0 +1,53 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file surface.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef LATFORM_LINUX_WAYLAND_EGL_SURFACE_H
+#define LATFORM_LINUX_WAYLAND_EGL_SURFACE_H
+
+#include <fennec/platform/opengl/egl/surface.h>
+#include <fennec/platform/linux/wayland/fwd.h>
+
+namespace fennec
+{
+
+class wayland_eglsurface : public eglsurface {
+public:
+	wayland_eglsurface(wayland_window* win, eglcontext* ctx);
+	~wayland_eglsurface();
+
+	void resize(const ivec2& size) override;
+
+private:
+};
+
+}
+
+#endif // LATFORM_LINUX_WAYLAND_EGL_SURFACE_H

include/fennec/platform/linux/wayland/fwd.h

@@ -0,0 +1,43 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file fwd.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef FENNEC_PLATFORM_LINUX_WAYLAND_FWD_H
+#define FENNEC_PLATFORM_LINUX_WAYLAND_FWD_H
+
+namespace fennec
+{
+
+class wayland_server;
+class wayland_window;
+
+}
+
+#endif // FENNEC_PLATFORM_LINUX_WAYLAND_FWD_H

include/fennec/platform/linux/wayland/server.h

@@ -31,6 +31,7 @@
 #ifndef FENNEC_PLATFORM_LINUX_WAYLAND_SERVER_H
 #define FENNEC_PLATFORM_LINUX_WAYLAND_SERVER_H
 
+#include <fennec/platform/linux/wayland/fwd.h>
 #include <fennec/platform/interface/display_server.h>
 
 // forward defs to avoid flooding global namespace
@@ -46,7 +47,9 @@ struct xdg_wm_base;
 namespace fennec
 {
 
-class wayland_server : public display_server {
+///
+/// \brief Class for handling the Wayland Display Server
+class wayland_server : public display_server_base<wayland_server, wayland_window> {
 public:
 	explicit wayland_server(fennec::platform* p);
 	~wayland_server() override;
@@ -55,8 +58,12 @@ public:
 	void disconnect() override;
 	bool connected() const override;
 
+	void dispatch() override;
+
 	window* create_window(const window::config& conf) override;
 
+	void* get_native_handle() override { return display; }
+
 private:
 	wl_display*    display;
 	wl_registry*   registry;

include/fennec/platform/linux/wayland/window.h

@@ -31,6 +31,7 @@
 #ifndef FENNEC_PLATFORM_LINUX_WAYLAND_WINDOW_H
 #define FENNEC_PLATFORM_LINUX_WAYLAND_WINDOW_H
 
+#include <fennec/platform/linux/wayland/fwd.h>
 #include <fennec/platform/interface/window.h>
 
 struct wl_array;
@@ -44,7 +45,7 @@ struct xdg_toplevel;
 namespace fennec
 {
 
-class wayland_window : public window {
+class wayland_window : public window_base<wayland_server> {
 public:
 	wayland_window(display_server* server, uint32_t id, const config& cfg);
 	~wayland_window();
@@ -52,7 +53,7 @@ public:
 	void show() override;
 	void hide() override;
 
-	void dispatch() override;
+	void* get_native_handle() override;
 
 	bool set_flag(uint8_t flag, bool val) override;
 

include/fennec/platform/opengl/egl/context.h

@@ -0,0 +1,65 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file context.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef FENNEC_PLATFORM_LINUX_WAYLAND_OPENGL_EGLCONTEXT_H
+#define FENNEC_PLATFORM_LINUX_WAYLAND_OPENGL_EGLCONTEXT_H
+
+#include <EGL/egl.h>
+
+#include <fennec/platform/linux/wayland/server.h>
+#include <fennec/renderers/opengl/glcontext.h>
+
+namespace fennec
+{
+
+class eglcontext : public glcontext {
+public:
+	eglcontext(display_server* display);
+	~eglcontext();
+
+	bool is_valid() override;
+
+private:
+	EGLDisplay _egldisplay;
+	EGLContext _eglcontext;
+	EGLConfig  _eglconfig;
+	EGLint _eglvmajor, _eglvminor, _eglctype;
+	cstring _extensions;
+
+	FENNEC_RTTI_CLASS_ENABLE(glcontext) {
+	}
+
+	friend class eglsurface;
+};
+
+}
+
+#endif // FENNEC_PLATFORM_LINUX_WAYLAND_OPENGL_EGLCONTEXT_H

include/fennec/platform/opengl/egl/fwd.h

@@ -17,7 +17,7 @@
 // =====================================================================================================================
 
 ///
-/// \file log.h
+/// \file fwd.h
 /// \brief
 ///
 ///
@@ -26,4 +26,18 @@
 ///
 /// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
 ///
-///
+///
+
+
+#ifndef FENNEC_PLATFORM_OPENGL_EGL_FWD_H
+#define FENNEC_PLATFORM_OPENGL_EGL_FWD_H
+
+namespace fennec
+{
+
+class eglcontext;
+class eglsurface;
+
+}
+
+#endif // FENNEC_PLATFORM_OPENGL_EGL_FWD_H

include/fennec/platform/opengl/egl/surface.h

@@ -0,0 +1,58 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file surface.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef FENNEC_PLATFORM_OPENGL_EGL_SURFACE_H
+#define FENNEC_PLATFORM_OPENGL_EGL_SURFACE_H
+
+#include <EGL/egl.h>
+
+#include <fennec/platform/opengl/egl/fwd.h>
+#include <fennec/renderers/interface/gfxsurface.h>
+
+namespace fennec
+{
+
+class eglsurface : public gfxsurface {
+public:
+	eglsurface(fennec::window* win, eglcontext* ctx, EGLNativeWindowType eglwindow);
+	~eglsurface();
+
+	void make_current() override;
+	void swap() override;
+
+protected:
+	EGLNativeWindowType _eglwindow;
+	EGLSurface          _eglsurface;
+};
+
+} // fennec
+
+#endif // FENNEC_PLATFORM_OPENGL_EGL_SURFACE_H

include/fennec/renderers/interface/gfxcontext.h

@@ -31,7 +31,9 @@
 #ifndef FENNEC_RENDERERS_INTERFACE_GFXCONTEXT_H
 #define FENNEC_RENDERERS_INTERFACE_GFXCONTEXT_H
 
+#include <fennec/core/version.h>
 #include <fennec/lang/types.h>
+#include <fennec/platform/interface/display_server.h>
 #include <fennec/string/string.h>
 #include <fennec/renderers/interface/forward.h>
 #include <fennec/renderers/interface/gfxresourcepool.h>
@@ -55,22 +57,31 @@ public:
 
 	using handle_t = uint32_t;
 
-	struct version_t {
-		uint8_t major, minor, patch;
-		string str;
-	};
-
-	const version_t version;
 	gfxresourcepool resources;
 
+	gfxcontext(display_server* display)
+		: display(display)
+		, version(0, 0, 0, string("")) {
+	}
+
+	virtual ~gfxcontext() = default;
+
 	gfxcontext& operator=(const gfxcontext&) = delete;
 	gfxcontext& operator=(gfxcontext&&)      = delete;
 
-	virtual gfxpass* create_pass() = 0;
+	virtual bool is_valid() = 0;
+
+	virtual gfxsurface* create_surface(window* window)    = 0;
+
+	virtual gfxpass*       create_pass() = 0;
+	virtual const version& get_version() const { return version; };
 
 protected:
+	display_server* display;
+	version         version;
 
-private:
+	FENNEC_RTTI_CLASS_ENABLE() {
+	}
 };
 
 }

include/fennec/renderers/interface/gfxsurface.h

@@ -0,0 +1,60 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file gfxcontext.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef FENNEC_RENDERERS_INTERFACE_GFXSURFACE_H
+#define FENNEC_RENDERERS_INTERFACE_GFXSURFACE_H
+
+#include <fennec/platform/interface/window.h>
+
+namespace fennec
+{
+
+class gfxsurface {
+public:
+	virtual ~gfxsurface() = default;
+
+	gfxsurface(window* win, gfxcontext* ctx)
+		: window(win), context(ctx) {
+	}
+
+	virtual void make_current() = 0;
+	virtual void swap() = 0;
+
+	virtual void resize(const ivec2& size) = 0;
+
+protected:
+	window*     window;
+	gfxcontext* context;
+};
+
+}
+
+#endif // FENNEC_RENDERERS_INTERFACE_GFXSURFACE_H

include/fennec/renderers/opengl/glcontext.h

@@ -0,0 +1,54 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file glcontext.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef FENNEC_RENDERERS_OPENGL_GLCONTEXT_H
+#define FENNEC_RENDERERS_OPENGL_GLCONTEXT_H
+#include <fennec/renderers/interface/gfxcontext.h>
+
+namespace fennec
+{
+
+class glcontext : public gfxcontext {
+public:
+	explicit glcontext(display_server* display)
+		: gfxcontext(display) {
+	}
+
+	gfxpass* create_pass() override;
+
+private:
+	FENNEC_RTTI_CLASS_ENABLE(gfxcontext) {
+	}
+};
+
+}
+
+#endif // FENNEC_RENDERERS_OPENGL_GLCONTEXT_H

include/fennec/rtti/type_registry.h

@@ -30,7 +30,11 @@
 
 #ifndef FENNEC_RTTI_TYPE_REGISTRY_H
 #define FENNEC_RTTI_TYPE_REGISTRY_H
+
 #include <fennec/containers/priority_queue.h>
+
+#include <fennec/lang/type_traits.h>
+
 #include <fennec/rtti/type.h>
 
 namespace fennec
@@ -89,12 +93,12 @@ public:
 
 	using entrylist_t = priority_queue<entry, compare>;
 
-	template<typename T>
+	template<typename DerivedT> requires(is_base_of_v<BaseT, DerivedT>)
 	static void register_type(size_t priority = 0) {
 		_global_list().emplace(
 			priority,
-			type::get<T>(),
+			type::get<DerivedT>(),
-			_constructor_helper<T>
+			_constructor_helper<DerivedT>
 		);
 	}
 

include/fennec/string/string.h

@@ -84,6 +84,9 @@ public:
 	/// \brief Buffer Constructor, wraps the provided C-Style string, appending a null-terminator if not present
 	/// \param str the buffer to wrap
 	/// \tparam n the number of characters in the buffer including the null-terminator, if present
+	///
+	/// \details This constructor is explicit because we want to be explicit about when we are allocating memory for
+	///          a string.
 	template<size_t n>
 	explicit constexpr _string(const char (&str)[n])
 		: _str(str[n - 1] != '\0' ? n + 1 : n) {

source/platform/interface/platform.cpp

@@ -46,7 +46,7 @@ void platform::initialize() {
 }
 
 void platform::shutdown() {
-
+	display.reset();
 }
 
 }

source/platform/interface/window.cpp

@@ -30,6 +30,7 @@
 
 #include <fennec/platform/interface/window.h>
 #include <fennec/platform/interface/display_server.h>
+#include <fennec/renderers/interface/gfxsurface.h>
 
 namespace fennec
 {
@@ -38,4 +39,12 @@ window* window::get_parent() const {
 	return server->get_window(cfg.parent);
 }
 
+void window::begin_frame() {
+	gfx_surface->make_current();
+}
+
+void window::end_frame() {
+	gfx_surface->swap();
+}
+
 }

source/platform/linux/wayland/egl/context.cpp

@@ -0,0 +1,38 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+
+#include <fennec/platform/linux/wayland/window.h>
+#include <fennec/platform/linux/wayland/egl/context.h>
+#include <fennec/platform/linux/wayland/egl/surface.h>
+
+namespace fennec
+{
+
+wayland_eglcontext::wayland_eglcontext(display_server* display)
+	: eglcontext(display) {
+}
+
+wayland_eglcontext::~wayland_eglcontext() {
+}
+
+gfxsurface* wayland_eglcontext::create_surface(window* window) {
+	return new wayland_eglsurface(static_cast<wayland_window*>(window), this);
+}
+
+}

source/platform/linux/wayland/egl/surface.cpp

@@ -0,0 +1,46 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+
+#include <fennec/platform/linux/wayland/window.h>
+#include <fennec/platform/linux/wayland/egl/surface.h>
+#include <fennec/platform/linux/wayland/lib/wayland.h>
+
+namespace fennec
+{
+
+wayland_eglsurface::wayland_eglsurface(wayland_window* win, eglcontext* ctx)
+	: eglsurface(win, ctx,
+		reinterpret_cast<EGLNativeWindowType>(
+			wl_egl_window_create(
+				static_cast<wl_surface*>(win->get_native_handle()), win->get_size().x, win->get_size().y
+			)
+		)
+	) {
+
+}
+
+wayland_eglsurface::~wayland_eglsurface() {
+	wl_egl_window_destroy(reinterpret_cast<wl_egl_window*>(_eglwindow));
+}
+
+void wayland_eglsurface::resize(const ivec2& size) {
+	wl_egl_window_resize(reinterpret_cast<wl_egl_window*>(_eglwindow), size.x, size.y, 0, 0);
+}
+
+}

source/platform/linux/wayland/server.cpp

@@ -16,30 +16,19 @@
 //  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 // =====================================================================================================================
 
-///
-/// \file wayland_server.h
-/// \brief
-///
-///
-/// \details
-/// \author Medusa Slockbower
-///
-/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
-///
-///
-
 #include <fennec/core/logger.h>
 #include <fennec/platform/linux/wayland/server.h>
 #include <fennec/platform/linux/wayland/window.h>
 #include <fennec/platform/linux/wayland/lib/loader.h>
 #include <fennec/platform/linux/wayland/lib/wayland.h>
 #include <fennec/platform/linux/wayland/lib/headers/xdg-shell-client-protocols.h>
+#include <fennec/renderers/interface/gfxcontext.h>
 
 namespace fennec
 {
 
 wayland_server::wayland_server(fennec::platform* p)
-	: display_server(p)
+	: display_server_base(p)
 	, display(nullptr), registry(nullptr), compositor(nullptr), seat(nullptr), fifo(false) {
 
 	// load shared lib
@@ -91,6 +80,22 @@ void wayland_server::connect() {
 		disconnect();
 		return;
 	}
+
+	auto contexts = ctx_registry::get_type_list();
+	while (not contexts.empty()) {
+		const auto& ctx = contexts.front();
+		gfx_context = ctx.ctor(this);
+
+		if (gfx_context->is_valid()) {
+			break;
+		} else {
+			delete gfx_context;
+			gfx_context = nullptr;
+			contexts.pop();
+		}
+	}
+
+	assertf(gfx_context != nullptr, "Failed to create graphics context.");
 }
 
 void wayland_server::disconnect() {
@@ -100,6 +105,10 @@ void wayland_server::disconnect() {
 		return;
 	}
 
+	// delete the gfx context
+	delete gfx_context;
+
+
 	// check compositor
 	if (compositor) {
 		wl_compositor_destroy(compositor);
@@ -115,7 +124,8 @@ void wayland_server::disconnect() {
 	wl_display_disconnect(display);
 
 	// clear vars
-	display     = nullptr;
+	gfx_context    = nullptr;
+	display    = nullptr;
 	registry   = nullptr;
 	compositor = nullptr;
 	seat       = nullptr;
@@ -126,6 +136,10 @@ bool wayland_server::connected() const {
 	return display != nullptr;
 }
 
+void wayland_server::dispatch() {
+	wl_display_dispatch_pending(display);
+}
+
 window* wayland_server::create_window(const window::config& conf) {
 	size_t id = windows.insert(new wayland_window(this, windows.next_id(), conf));
 	return windows[id];

source/platform/linux/wayland/window.cpp

@@ -16,29 +16,18 @@
 //  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 // =====================================================================================================================
 
-///
-/// \file window.h
-/// \brief
-///
-///
-/// \details
-/// \author Medusa Slockbower
-///
-/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
-///
-///
-
 #include <fennec/platform/interface/display_server.h>
 
 #include <fennec/platform/linux/wayland/server.h>
 #include <fennec/platform/linux/wayland/window.h>
 #include <fennec/platform/linux/wayland/lib/wayland.h>
 #include <fennec/platform/linux/wayland/lib/headers/xdg-shell-client-protocols.h>
+#include <fennec/renderers/interface/gfxcontext.h>
 
 using namespace fennec;
 
 wayland_window::wayland_window(display_server* server, uint32_t id, const config& cfg)
-	: window(server, id, cfg)
+	: window_base(server, id, cfg)
 	, surface(nullptr)
 	, xdgsurface(nullptr) {
 
@@ -99,10 +88,12 @@ void wayland_window::show() {
 
 	cfg.flags.set(flag_visible);
 	cfg.flags.set(flag_running);
+
+	gfx_surface = wl_server->get_gfx_context()->create_surface(this);
 }
 
 void wayland_window::hide() {
-	if (not is_visible()) {
+	if (not is_running()) {
 		return;
 	}
 
@@ -134,9 +125,8 @@ void wayland_window::hide() {
 	cfg.flags.clear(flag_running);
 }
 
-void wayland_window::dispatch() {
+void* wayland_window::get_native_handle() {
-	wayland_server* wl_server = static_cast<wayland_server*>(server);
+	return surface;
-	wl_display_dispatch(wl_server->display);
 }
 
 bool wayland_window::set_flag(uint8_t, bool) {
@@ -156,5 +146,11 @@ void wayland_window::listen_xdg_surface_configure(void*, xdg_surface* xdg, uint3
 
 void wayland_window::listen_xdg_toplevel_configure(void*, xdg_toplevel*, int32_t, int32_t, wl_array*) {}
 void wayland_window::listen_xdg_toplevel_configure_bounds(void*, xdg_toplevel*, int32_t, int32_t) {}
-void wayland_window::listen_xdg_toplevel_close(void*, xdg_toplevel*) {}
+
+void wayland_window::listen_xdg_toplevel_close(void* data, xdg_toplevel*) {
+	wayland_window* window = static_cast<wayland_window*>(data);
+	window->hide();
+
+}
+
 void wayland_window::listen_xdg_toplevel_capabilities(void*, xdg_toplevel*, wl_array*) {}

source/platform/opengl/egl/context.cpp

@@ -0,0 +1,114 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+#include <fennec/format/format.h>
+#include <GL/gl.h>
+
+#include <fennec/platform/opengl/egl/context.h>
+
+namespace fennec
+{
+
+static const cstring& egl_translate_type(EGLint type) {
+	static constexpr cstring opengl = "OpenGL";
+	static constexpr cstring gles   = "GLES";
+	static constexpr cstring openvg = "OpenVG"; // this should never be used
+	switch (type) {
+		default:
+		case EGL_OPENGL_API:    return opengl;
+		case EGL_OPENGL_ES_API: return gles;
+		case EGL_OPENVG_API:    return openvg;
+	}
+
+}
+
+eglcontext::eglcontext(display_server* display)
+	: glcontext(display) {
+
+	EGLint config_attrs[] = {
+		EGL_SURFACE_TYPE,
+		EGL_WINDOW_BIT,
+
+		EGL_RENDERABLE_TYPE,
+		EGL_OPENGL_BIT, // 4
+		EGL_NONE
+	};
+
+	EGLint context_attrs[] = {
+		EGL_NONE
+	};
+
+	// Get the EGL display from the display server
+	_egldisplay = eglGetDisplay(display->get_native_handle());
+	assertf(_egldisplay, "Failed to connect to egl display.");
+
+	// Initialize EGL
+	assertf(eglInitialize(_egldisplay, &_eglvmajor, &_eglvminor), "Failed to initialize egl.");
+
+	// Attempt to bind to OpenGL or GLES
+	if (not eglBindAPI(EGL_OPENGL_API)) {
+		config_attrs[4] = EGL_OPENGL_ES_BIT;
+		assertf(eglBindAPI(EGL_OPENGL_ES_API), "Failed to find suitable OpenGL API.");
+	}
+
+	// Select a configuration
+	EGLint n;
+	assertf(eglChooseConfig(_egldisplay, config_attrs, &_eglconfig, 1, &n), "Failed to find suitable OpenGL configuration.");
+
+	// Create a context from the configuration and display
+	_eglcontext = eglCreateContext(_egldisplay, _eglconfig, EGL_NO_CONTEXT, context_attrs);
+	assertf(_eglcontext, "Failed to create OpenGL Context.");
+
+	// Make the created context the current context to query some info
+	eglMakeCurrent(_egldisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, _eglcontext);
+
+	// Query version information
+	eglQueryContext(_egldisplay, _eglcontext, EGL_CONTEXT_CLIENT_TYPE, &_eglctype);
+	glGetIntegerv(GL_MAJOR_VERSION, &_eglvmajor);
+	glGetIntegerv(GL_MINOR_VERSION, &_eglvminor);
+
+	// Set the version fields
+	version.major = _eglvmajor;
+	version.minor = _eglvminor;
+	version.patch = 0;
+	version.str   = format("{} v{}.{}", egl_translate_type(_eglctype), _eglvmajor, _eglvminor);
+}
+
+eglcontext::~eglcontext() {
+	eglMakeCurrent(_egldisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+	eglDestroyContext(_egldisplay, _eglcontext);
+	eglTerminate(_egldisplay);
+	eglReleaseThread();
+
+	_egldisplay = nullptr;
+	_eglconfig  = nullptr;
+	_eglcontext = nullptr;
+	_eglvmajor  = 0;
+	_eglvminor  = 0;
+
+	version.major = 0;
+	version.minor = 0;
+	version.patch = 0;
+	version.str   = "";
+}
+
+bool eglcontext::is_valid() {
+	return _egldisplay != nullptr;
+}
+
+}

source/platform/opengl/egl/surface.cpp

@@ -0,0 +1,55 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+#include <fennec/platform/opengl/egl/context.h>
+#include <fennec/platform/opengl/egl/surface.h>
+
+namespace fennec {
+
+eglsurface::eglsurface(fennec::window* win, eglcontext* ctx, EGLNativeWindowType eglwindow)
+	: gfxsurface(win, ctx)
+	, _eglwindow(eglwindow)
+	, _eglsurface(nullptr) {
+
+	assertf(_eglwindow, "Failed to acquire EGL window!");
+
+	_eglsurface = eglCreateWindowSurface(
+		ctx->_egldisplay,
+		ctx->_eglconfig,
+		_eglwindow,
+		nullptr
+	);
+	assertf(_eglsurface, "Failed to create EGL surface!");
+}
+
+eglsurface::~eglsurface() {
+	eglcontext* ctx = static_cast<eglcontext*>(context);
+	eglDestroySurface(ctx->_egldisplay, _eglsurface);
+}
+
+void eglsurface::make_current() {
+	eglcontext* ctx = static_cast<eglcontext*>(context);
+	eglMakeCurrent(ctx->_egldisplay, _eglsurface, _eglsurface, ctx->_eglcontext);
+}
+
+void eglsurface::swap() {
+	eglcontext* ctx = static_cast<eglcontext*>(context);
+	eglSwapBuffers(ctx->_egldisplay, _eglsurface);
+}
+
+} // fennec

source/renderers/opengl/glcontext.cpp

@@ -0,0 +1,28 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+#include <fennec/renderers/opengl/glcontext.h>
+
+namespace fennec
+{
+
+gfxpass* glcontext::create_pass() {
+	return nullptr;
+}
+
+}

test/CMakeLists.txt

@@ -6,6 +6,7 @@ set(CMAKE_C_STANDARD 23)
 
 add_executable(fennec-test
         main.cpp
+        tests/lang/test_metaprogramming.h
 )
 
 target_compile_definitions(fennec-test PUBLIC FENNEC_TEST_CWD="${CMAKE_SOURCE_DIR}/bin/${FENNEC_BUILD_NAME}"

test/tests/lang/test_metaprogramming.h

@@ -0,0 +1,61 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file test_metaprogramming.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+
+#ifndef FENNEC_TEST_LANG_METAPROGRAMMING_H
+#define FENNEC_TEST_LANG_METAPROGRAMMING_H
+
+#include "../../test.h"
+
+namespace fennec::test
+{
+
+struct metaprogramming_test {
+
+};
+
+struct metaprogramming_test_base {
+
+};
+
+struct metaprogramming_test_derived : metaprogramming_test_base {
+
+};
+
+inline void fennec_test_lang_metaprogramming() {
+
+	fennec_test_run((is_base_of_v<metaprogramming_test_base, metaprogramming_test_derived>), true);
+	fennec_test_run((is_base_of_v<metaprogramming_test,      metaprogramming_test_derived>), false);
+
+}
+
+}
+
+#endif // FENNEC_TEST_LANG_METAPROGRAMMING_H

test/tests/test_lang.h

@@ -22,12 +22,12 @@
 #include "lang/test_bits.h"
 #include "lang/test_conditional_types.h"
 #include "lang/test_hashing.h"
+#include "lang/test_metaprogramming.h"
 
 namespace fennec::test
 {
 
-	inline void fennec_test_lang()
+	inline void fennec_test_lang() {
-	{
 		fennec_test_subheader("bit tests");
 		fennec_test_spacer(2);
 		fennec_test_lang_bits();
@@ -36,6 +36,11 @@ namespace fennec::test
 		fennec_test_subheader("hashing tests");
 		fennec_test_spacer(2);
 		fennec_test_lang_hashing();
+		fennec_test_spacer(3);
+
+		fennec_test_subheader("metaprogramming tests");
+		fennec_test_spacer(2);
+		fennec_test_lang_metaprogramming();
 
 		// TODO
 	}

test/tests/test_platform.h

@@ -48,7 +48,10 @@ inline void fennec_test_platform() {
 	window->show();
 
 	while (window->is_running()) {
-		window->dispatch();
+		window->begin_frame();
+		window->end_frame();
+
+		display->dispatch();
 	}
 
 	window->hide();