Add new Renderer architecture (far from complete)

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Former-commit-id: fb6c2456d8edd3ec022d5d953f79fecdd4f2b8f4

include/Nazara/Renderer/RendererImpl.hpp

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+// Copyright (C) 2015 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Renderer module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_RENDERER_RENDERERIMPL_HPP
+#define NAZARA_RENDERER_RENDERERIMPL_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Core/ParameterList.hpp>
+#include <Nazara/Core/String.hpp>
+#include <Nazara/Renderer/Config.hpp>
+#include <Nazara/Renderer/Enums.hpp>
+#include <Nazara/Renderer/RenderDevice.hpp>
+#include <vector>
+
+namespace Nz
+{
+	class RendererImpl;
+
+	using CreateRendererImplFunc = RendererImpl*(*)();
+
+	class NAZARA_RENDERER_API RendererImpl
+	{
+		public:
+			RendererImpl() = default;
+			virtual ~RendererImpl();
+
+			virtual bool IsBetterThan(const RendererImpl* other) const = 0;
+
+			virtual RenderAPI QueryAPI() const = 0;
+			virtual String QueryAPIString() const = 0;
+			virtual UInt32 QueryAPIVersion() const = 0;
+
+			virtual std::vector<RenderDevice> QueryRenderDevices() const = 0;
+
+			virtual bool Prepare(const ParameterList& parameters) = 0;
+	};
+}
+
+#endif // NAZARA_RENDERER_RENDERERIMPL_HPP