Fix EGL context sharing

It seems contexts must be part of the same display to be shared, and that using default display with window isn't an issue on Windows/X11

include/Nazara/OpenGLRenderer/Wrapper/EGL/EGLContextBase.hpp

@@ -71,6 +71,7 @@ namespace Nz::GL
 
 			std::unordered_set<std::string> m_supportedPlatformExtensions;
 			EGLContext m_handle;
+			bool m_ownsDisplay;
 	};
 }
 

include/Nazara/OpenGLRenderer/Wrapper/EGL/EGLContextBase.inl

@@ -12,7 +12,8 @@ namespace Nz::GL
 	m_loader(loader),
 	m_display(EGL_NO_DISPLAY),
 	m_surface(EGL_NO_SURFACE),
-	m_handle(EGL_NO_CONTEXT)
+	m_handle(EGL_NO_CONTEXT),
+	m_ownsDisplay(false)
 	{
 	}
 

include/Nazara/OpenGLRenderer/Wrapper/EGL/EGLLoader.hpp

@@ -20,11 +20,13 @@ namespace Nz::GL
 	{
 		public:
 			EGLLoader();
-			~EGLLoader() = default;
+			~EGLLoader();
 
 			std::unique_ptr<Context> CreateContext(const OpenGLDevice* device, const ContextParams& params, Context* shareContext) const override;
 			std::unique_ptr<Context> CreateContext(const OpenGLDevice* device, const ContextParams& params, WindowHandle handle, Context* shareContext) const override;
 
+			inline EGLDisplay GetDefaultDisplay() const;
+
 			GLFunction LoadFunction(const char* name) const override;
 
 #define NAZARA_OPENGLRENDERER_FUNC(name, sig) sig name = nullptr;
@@ -40,6 +42,7 @@ namespace Nz::GL
 			static const char* TranslateError(EGLint errorId);
 
 		private:
+			EGLDisplay m_defaultDisplay;
 			DynLib m_eglLib;
 	};
 }

include/Nazara/OpenGLRenderer/Wrapper/EGL/EGLLoader.inl

@@ -5,8 +5,12 @@
 #include <Nazara/OpenGLRenderer/Wrapper/EGL/EGLLoader.hpp>
 #include <Nazara/OpenGLRenderer/Debug.hpp>
 
-namespace Nz::Vk
+namespace Nz::GL
 {
+	inline EGLDisplay EGLLoader::GetDefaultDisplay() const
+	{
+		return m_defaultDisplay;
+	}
 }
 
 #include <Nazara/OpenGLRenderer/DebugOff.hpp>